U.S. patent application number 16/764522 was filed with the patent office on 2021-07-22 for air conditioning system with two-stage compression.
This patent application is currently assigned to Qingdao Haier Air-conditioning Electronic Co., Ltd. The applicant listed for this patent is Haier Smart Home Co., Ltd., Qingdao Haier Air-conditioning Electronic Co., Ltd. Invention is credited to Yinyin LI, Jingsheng LIU, Qingliang MENG, Tao REN, Qiang SONG, Xueyan TAN.
Application Number | 20210222917 16/764522 |
Document ID | / |
Family ID | 1000005522181 |
Filed Date | 2021-07-22 |
United States Patent
Application |
20210222917 |
Kind Code |
A1 |
MENG; Qingliang ; et
al. |
July 22, 2021 |
AIR CONDITIONING SYSTEM WITH TWO-STAGE COMPRESSION
Abstract
An air conditioning system with two-stage compression to solve
the problems of high cost and low energy efficiency of the existing
multi-stage compressors. Provided is an air conditioning system
with two-stage compression, where the air conditioning system
includes a compressor, a condenser, a throttling element, and an
evaporator connected in sequence; the air conditioning system
further includes a pressurizing unit disposed between the
compressor and the condenser, and the pressurizing unit is capable
of converting natural energy into mechanical energy to pressurize
refrigerant discharged from the compressor for a second time. Since
the pressurizing unit is capable of converting natural energy into
mechanical energy to pressurize refrigerant discharged from the
compressor for a second time, the air conditioning system can
utilize a driving force provided by the natural energy to achieve
two-stage compression, thereby improving the energy efficiency of
the two-stage compression.
Inventors: |
MENG; Qingliang; (Qingdao,
CN) ; SONG; Qiang; (Qingdao, CN) ; TAN;
Xueyan; (Qingdao, CN) ; LIU; Jingsheng;
(Qingdao, CN) ; LI; Yinyin; (Qingdao, CN) ;
REN; Tao; (Qingdao, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Qingdao Haier Air-conditioning Electronic Co., Ltd
Haier Smart Home Co., Ltd. |
Qingdao, Shandong
Qingdao, Shandong |
|
CN
CN |
|
|
Assignee: |
Qingdao Haier Air-conditioning
Electronic Co., Ltd
Qingdao, Shandong
CN
Haier Smart Home Co., Ltd.
Qingdao, Shandong
CN
|
Family ID: |
1000005522181 |
Appl. No.: |
16/764522 |
Filed: |
March 26, 2019 |
PCT Filed: |
March 26, 2019 |
PCT NO: |
PCT/CN2019/079659 |
371 Date: |
May 15, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F25B 1/10 20130101; F25B
2400/13 20130101; F25B 2400/16 20130101; F25B 39/02 20130101; F25B
2700/21152 20130101 |
International
Class: |
F25B 1/10 20060101
F25B001/10; F25B 39/02 20060101 F25B039/02 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 28, 2018 |
CN |
201811627012.1 |
Claims
1-10. (canceled)
11. An air conditioning system with two-stage compression,
comprising: a compressor, a condenser, a throttling element, and an
evaporator connected in sequence; the air conditioning system
further comprises a pressurizing unit disposed between the
compressor and the condenser, and the pressurizing unit is
configured to converting natural energy into mechanical energy to
pressurize refrigerant discharged from the compressor for a second
time.
12. The air conditioning system with two-stage compression
according to claim 11, wherein the pressurizing unit comprises a
receiver and a pressurizer, the pressurizer is connected to the
receiver, and the receiver receives the natural energy, converts
the natural energy into mechanical energy and then transmits the
mechanical energy to the pressurizer so that the pressurizer
pressurizes the refrigerant for a second time.
13. The air conditioning system with two-stage compression
according to claim 12, wherein the pressurizer is an energy
accumulation pressurizer, a rotating shaft of the energy
accumulation pressurizer is connected to the receiver, a suction
port of the energy accumulation pressurizer is in communication
with an exhaust port of the compressor, and a discharge port of the
energy accumulation pressurizer is in communication with an intake
port of the condenser.
14. The air conditioning system with two-stage compression
according to claim 12, wherein the natural energy is marine energy,
the receiver is a hydro-turbine, and an impeller shaft of the
hydro-turbine is connected to the pressurizer.
15. The air conditioning system with two-stage compression
according to claim 12, wherein the natural energy is wind energy,
the receiver is a wind turbine, and an impeller shaft of the wind
turbine is connected to the pressurizer.
16. The air conditioning system with two-stage compression
according to claim 12, wherein the receiver further comprises a
converter, and the pressurizer is connected to the receiver through
the converter so that the converter transmits the mechanical energy
from the receiver to the pressurizer.
17. The air conditioning system with two-stage compression
according to claim 16, wherein the converter is a bevel-gear
direction converter, an input shaft of the bevel-gear direction
converter is connected to the receiver, and an output shaft of the
bevel-gear direction converter is connected to the pressurizer.
18. The air conditioning system with two-stage compression
according to claim 16, wherein the converter is a worm-and-gear
direction converter, an input shaft of the worm-and-gear direction
converter is connected to the receiver, and an output shaft of the
worm-and-gear direction converter is connected to the
pressurizer.
19. The air conditioning system with two-stage compression
according to claim 11, wherein the air conditioning system further
comprises a sub-cooling unit, and the sub-cooling unit comprises a
sub-cooling inlet, a first sub-cooling outlet, and a second
sub-cooling outlet, wherein the sub-cooling inlet is in
communication with a liquid outlet of the condenser, the first
sub-cooling outlet is in communication with an inlet of the
throttling element, and the second sub-cooling outlet is in
communication with the exhaust port of the compressor.
20. The air conditioning system with two-stage compression
according to claim 11, wherein the air conditioning system further
comprises an economizer, a flasher, or a sub-cooler.
Description
FIELD
[0001] The present disclosure relates to the technical field of air
conditioning, and in particular to an air conditioning system with
two-stage compression.
BACKGROUND
[0002] As a kind of commonly used electrical appliance, air
conditioners have become more widely used, and accordingly,
requirements on their performances are becoming higher and higher.
Taking commercial air conditioners as an example, in some special
application scenarios, it is required to control an evaporation
temperature of the air conditioning system to be very low. For
example, the temperature in low-temperature devices such as
large-sized cold storage or low-temperature box needs to be
controlled at -30.degree. C. to -40.degree. C. or even lower. In
this case, a single-stage compressor cannot meet the requirements
since the compression ratio and pressure difference are limited to
a certain extent. Generally, in this situation, a solution in which
a two-stage compressor or a multi-stage compressor is used in
cooperation with a low-temperature refrigerant is adopted. The
refrigerant is compressed twice by the two-stage compressor so that
an evaporation temperature of -65.degree. C. to -75.degree. C. or
even lower may be obtained.
[0003] Although the two-stage compressor or the multi-stage
compressor solves the above problem to some extent, the following
problems also inevitably arise: firstly, the two-stage compressor
is bulky and an internal structure thereof is complicated,
resulting in high manufacturing cost and reduced product
competitiveness; secondly, existing two-stage compressors have a
low energy efficiency during operation.
[0004] Accordingly, there is a need in the art for a new air
conditioning system with two-stage compression to solve the above
problems.
SUMMARY
[0005] In order to solve the above-mentioned problems in the
related art, namely, to solve the problems of high cost and low
energy efficiency of the existing multi-stage compressors, the
present disclosure provides an air conditioning system with
two-stage compression, wherein the air conditioning system includes
a compressor, a condenser, a throttling element, and an evaporator
connected in sequence; the air conditioning system further includes
a pressurizing unit disposed between the compressor and the
condenser, and the pressurizing unit is configured to be capable of
converting natural energy into mechanical energy to pressurize
refrigerant discharged from the compressor for a second time.
[0006] In a preferred technical solution of the above air
conditioning system with two-stage compression, the pressurizing
unit includes a receiver and a pressurizer, the pressurizer is
connected to the receiver, and the receiver is capable of receiving
the natural energy, converting the natural energy into mechanical
energy and then transmitting the mechanical energy to the
pressurizer so that the pressurizer pressurizes the refrigerant for
a second time.
[0007] In a preferred technical solution of the above air
conditioning system with two-stage compression, the pressurizer is
an energy accumulation pressurizer, a rotating shaft of the energy
accumulation pressurizer is connected to the receiver, a suction
port of the energy accumulation pressurizer is in communication
with an exhaust port of the compressor, and a discharge port of the
energy accumulation pressurizer is in communication with an intake
port of the condenser.
[0008] In a preferred technical solution of the above air
conditioning system with two-stage compression, the natural energy
is marine energy, the receiver is a hydro-turbine, and an impeller
shaft of the hydro-turbine is connected to the pressurizer.
[0009] In a preferred technical solution of the above air
conditioning system with two-stage compression, the natural energy
is wind energy, the receiver is a wind turbine, and an impeller
shaft of the wind turbine is connected to the pressurizer.
[0010] In a preferred technical solution of the above air
conditioning system with two-stage compression, the receiver
further includes a converter, and the pressurizer is connected to
the receiver through the converter so that the converter transmits
the mechanical energy obtained after the conversion by the receiver
to the pressurizer.
[0011] In a preferred technical solution of the above air
conditioning system with two-stage compression, the converter is a
bevel-gear direction converter, an input shaft of the bevel-gear
direction converter is connected to the receiver, and an output
shaft of the bevel-gear direction converter is connected to the
pressurizer.
[0012] In a preferred technical solution of the above air
conditioning system with two-stage compression, the converter is a
worm-and-gear direction converter, an input shaft of the
worm-and-gear direction converter is connected to the receiver, and
an output shaft of the worm-and-gear direction converter is
connected to the pressurizer.
[0013] In a preferred technical solution of the above air
conditioning system with two-stage compression, the air
conditioning system further includes a sub-cooling unit, and the
sub-cooling unit includes a sub-cooling inlet, a first sub-cooling
outlet and a second sub-cooling outlet, wherein the sub-cooling
inlet is in communication with a liquid outlet of the condenser,
the first sub-cooling outlet is in communication with an inlet of
the throttling element, and the second sub-cooling outlet is in
communication with the intake port of the compressor.
[0014] In a preferred technical solution of the above air
conditioning system with two-stage compression, the air
conditioning system further includes an economizer, a flasher, or a
subcooler.
[0015] It can be understood by those skilled in the art that in a
preferred technical solution of the present disclosure, the air
conditioning system with two-stage compression includes a
compressor, a condenser, a throttling element, and an evaporator
connected in sequence, and is characterized in that the air
conditioning system further includes a pressurizing unit disposed
between the compressor and the condenser, and the pressurizing unit
is configured to be capable of converting natural energy into
mechanical energy to pressurize refrigerant discharged from the
compressor for a second time.
[0016] Since the pressurizing unit is configured to be capable of
converting natural energy into mechanical energy to pressurize
refrigerant discharged from the compressor for a second time, at
the same time of utilizing a driving force provided by the natural
energy to achieve two-stage compression, the air conditioning
system with two-stage compression of the present disclosure can
also improve the energy efficiency of the two-stage compression.
Specifically, when the air conditioning system is operating, the
compressor firstly pressurizes the refrigerant for a first time,
and after the refrigerant that has been pressurized for the
first-time is discharged from the compressor, the pressurizing unit
utilizes the natural energy to provide a driving force for a
second-time pressurizing to convert the natural energy into
mechanical energy and utilize the mechanical energy to pressurize,
for a second time, the refrigerant that has been pressurized for
the first-time. The air conditioning system of the present
disclosure can achieve a second-time pressurizing without
additional energy consumption, which not only improves the
performance of the air conditioning system, but also achieves zero
energy consumption of the second-time pressurizing.
[0017] Further, by disposing a sub-cooling unit in the air
conditioning system, the air conditioning system of the present
disclosure can also achieve sub-cooling of the refrigerant, so that
at the same time of lowering the evaporation temperature, a cooling
capacity and a cooling efficiency are also improved. Specifically,
by communicating a sub-cooling inlet of the sub-cooling unit with a
liquid outlet of the condenser, communicating a first sub-cooling
outlet of the sub-cooling unit with an inlet of the throttling
element, and communicating a second sub-cooling outlet of the
sub-cooling unit with an exhaust port of the compressor, when the
air conditioning system is operating, the refrigerant discharged
from the liquid outlet of the condenser is divided into two parts,
wherein one part is cooled by being evaporated into a gaseous
refrigerant due to throttling, so that the temperature of the other
part is lowered and subcooled to reduce the refrigerant
temperature. The subcooled liquid refrigerant flows out of the
first sub-cooling outlet, passes through the throttling element and
enters the evaporator for evaporation and refrigeration, thereby
achieving lower evaporation temperature and compressor exhaust
temperature; whereas the uncooled gaseous refrigerant is discharged
to the exhaust port of the compressor through the second
sub-cooling outlet, and then enters the pressurizing unit with the
refrigerant discharged from the compressor for a second-time
pressurizing to improve the cooling capacity and cooling
efficiency.
BRIEF DESCRIPTION OF DRAWINGS
[0018] The air conditioning system with two-stage compression of
the present disclosure will be described below with reference to
the accompanying drawings and in connection with a cooling mode. In
the drawings:
[0019] FIG. 1 is a system diagram of an air conditioning system
with two-stage compression according to the present disclosure;
and
[0020] FIG. 2 is a cyclic pressure-enthalpy diagram of an air
conditioning system with two-stage compression according to the
present disclosure.
LIST OF REFERENCE SIGNS
[0021] 1. compressor; 11. exhaust port; 2. condenser; 21. intake
port; 22. liquid outlet; 3. throttling element; 4. evaporator; 51.
receiver; 52. converter; 53. pressurizer; 531. suction port; 532.
discharge port; 6. sub-cooling unit; 61. sub-cooling inlet; 62.
first sub-cooling outlet; 63. second sub-cooling outlet.
DETAILED DESCRIPTION
[0022] Hereinafter, preferred embodiments of the present disclosure
will be described with reference to the accompanying drawings.
Those skilled in the art should understand that these embodiments
are only used to explain the technical principles of the present
disclosure, and are not intended to limit the scope of protection
of the present disclosure. For example, although the present
embodiments are described in connection with a cooling mode, the
application scenarios of the present disclosure are not limited
thereto, and may be adjusted by those skilled in the art. For
example, the present disclosure may also be applied to modes that
require a compressor to participate in operation, such as a heating
mode and a dehumidification mode of an air conditioning system.
[0023] It should be noted that in the description of the present
disclosure, directional or positional relationships indicated by
terms such as "center", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner" and "outer" are based on the
directions or positional relationships shown in the drawings. They
are merely used for the convenience of description, and do not
indicate or imply that the device or element involved must have a
specific orientation, or be configured or operated in a specific
orientation, and therefore they should not be construed as limiting
the present disclosure. In addition, terms "first", "second", and
"third" are only used for descriptive purposes, and should not be
understood as indicating or implying relative importance.
[0024] In addition, it should also be noted that in the description
of the present disclosure, terms such as "install", "connect" and
"connection" should be understood in a broad sense, unless
explicitly stated and defined otherwise; for example, they may
indicate a fixed connection, a detachable connection or an integral
connection, or may indicate a mechanical connection or an
electrical connection; or may indicate a direct connection, or an
indirect connection through an intermediate medium, or an internal
communication between two elements. For those skilled in the art,
the specific meanings of the above terms in the present disclosure
may be interpreted according to the specific circumstances.
[0025] First, referring to FIG. 1 and FIG. 2, an air conditioning
system with two-stage compression according to the present
disclosure will be described. FIG. 1 is a system diagram of an air
conditioning system with two-stage compression according to the
present disclosure, and FIG. 2 is a cyclic pressure-enthalpy
diagram of an air conditioning system with two-stage compression
according to the present disclosure.
[0026] As shown in FIG. 1, in order to solve the problems of high
cost and low energy efficiency of an existing multi-stage
compressor 1, an air conditioning system with two-stage compression
(which may be referred to as an air conditioning system
hereinafter) of the present disclosure mainly includes a compressor
1, a condenser 2, a throttling element 3 (such as an electronic
expansion valve), and an evaporator 4 connected in sequence, and
these components constitute a conventional air conditioning
circulation loop in which refrigerant is filled. In particular, the
air conditioning system further has a pressurizing unit and a
sub-cooling unit. The pressurizing unit is disposed between the
compressor 1 and the condenser 2, and the pressurizing unit is
configured to be capable of converting natural energy into
mechanical energy to pressurize refrigerant discharged from the
compressor 1 for a second time. The sub-cooling unit includes a
sub-cooling inlet 61, a first sub-cooling outlet 62, and a second
sub-cooling outlet 63. The sub-cooling inlet 61 is in communication
with a liquid outlet 22 of the condenser 2, the first sub-cooling
outlet 62 is in communication with an inlet of the throttling
element 3, and the second sub-cooling outlet 63 is in communication
with an exhaust port 11 of the compressor 1.
[0027] As shown in FIG. 1 and FIG. 2, when the air conditioning
system is operating, the refrigerant flowing out of the liquid
outlet 22 from the condenser 2 is divided into two parts (state
point 4.fwdarw.5.fwdarw.6), wherein a first part is cooled in a way
of throttling thermal expansion under the action of the sub-cooling
unit cools, and reduces the temperature of a second part by heat
exchange. The first part of the refrigerant after the heat exchange
comes to the exhaust port 11 of the compressor 1 through the second
sub-cooling outlet (state point 6.fwdarw.3); the second part of the
refrigerant, after exchanging heat with the first part of the
refrigerant, enters the evaporator 4 for evaporation after being
further throttled by the throttling element 3 (state point
6.fwdarw.7.fwdarw.1); the refrigerant after evaporation enters the
compressor 1 for a first-time pressurizing. then is discharged
through the exhaust port 11 of the compressor 1 (state point
1.fwdarw.2), and is mixed with the first part of the refrigerant
that comes to the exhaust port 11 of the compressor 1 (state point
2.fwdarw.3); the mixed refrigerant enters the pressurizing unit,
and after the pressurizing unit converts the natural energy into
mechanical energy so that the mixed refrigerant is pressurized for
a second time (state point 3.fwdarw.4), the refrigerant enters the
condenser 2 again, thereby completing one cycle.
[0028] As can be seen from the above description, since the
pressurizing unit is configured to be capable of converting natural
energy into mechanical energy to pressurize refrigerant discharged
from the compressor 1 for a second time, at the same time of
utilizing the natural energy to achieve two-stage compression, the
air conditioning system with two-stage compression of the present
disclosure can also improve the energy efficiency of the two-stage
compression. Specifically, when the air conditioning system is
operating, the compressor 1 firstly pressurizes the refrigerant for
a first time, and after the refrigerant that has been pressurized
for the first-time is discharged from the compressor 1 and is mixed
with a part of the refrigerant from the sub-cooling unit, the
pressurizing unit utilizes the natural energy to provide a driving
force for a second-time pressurizing to convert the natural energy
into mechanical energy and utilize the mechanical energy to
pressurize, for a second time, the refrigerant that has been
pressurized for the first-time, so that the air conditioning system
of the present disclosure can achieve a second-time pressurizing
without additional energy consumption, which not only improves the
performance of the air conditioning system, but also achieves zero
energy consumption of the second-time pressurizing.
[0029] Further, by disposing a sub-cooling unit in the air
conditioning system, the air conditioning system of the present
disclosure can also achieve sub-cooling of the refrigerant, so that
at the same time of lowering the evaporation temperature, a cooling
capacity and a cooling efficiency are also improved. Specifically,
by communicating the sub-cooling inlet 61 of the sub-cooling unit
with the liquid outlet 22 of the condenser 2, communicating the
first sub-cooling outlet 62 of the sub-cooling unit with the inlet
of the throttling element 3, and communicating the second
sub-cooling outlet 63 of the sub-cooling unit with the exhaust port
11 of the compressor 1, when the air conditioning system is
operating, the refrigerant discharged from the liquid outlet 22 of
the condenser 2 is divided into two parts by the sub-cooling unit,
wherein one part is cooled by being evaporated into a gaseous
refrigerant due to throttling, so that the temperature of the other
part is lowered and subcooled to reduce the refrigerant
temperature. The subcooled liquid refrigerant flows out of the
first sub-cooling outlet 62, passes through the throttling element
3 and enters the evaporator 4 for evaporation and refrigeration,
thereby achieving lower evaporation temperature and lower exhaust
temperature of the compressor 1; whereas the uncooled gaseous
refrigerant is discharged to the exhaust port 11 of the compressor
1 through the second sub-cooling outlet 63, and then enters the
pressurizing unit with the refrigerant discharged from the
compressor 1 for a second-time pressurizing to improve the cooling
capacity and cooling efficiency.
[0030] The air conditioning system with dual-stage compression
according to the present disclosure will be described in detail
below with reference to FIG. 1.
[0031] As shown in FIG. 1, in a possible embodiment, the natural
energy is marine energy, for example a source of water that can
flow such as river, stream, lake and sea. The pressurizing unit
includes a receiver 51, a converter 52, and a pressurizer 53. The
receiver 51 is connected to the converter 52, the converter 52 is
connected to the pressurizer 53, and the pressurizer 53 is disposed
between the exhaust port 11 of the compressor 1 and the intake port
21 of the condenser 2. The receiver 51 is capable of receiving an
ocean energy and converting the ocean energy into mechanical
energy, and the converter 52 is capable of transmitting the
mechanical energy to the pressurizer 53, so that the pressurizer 53
utilizes the mechanical energy to pressurize the refrigerant for a
second time. Specifically, the receiver 51 may be a hydro-turbine
having an impeller and an impeller shaft; the converter 52 may be a
bevel-gear direction converter having an input shaft and an output
shaft; and the pressurizer 53 may be an energy accumulation
pressurizer having a suction port 531, a discharge port 532, a
scroll, and a rotating shaft. The impeller shaft of the
hydro-turbine is connected to the input shaft of the bevel-gear
direction converter, such as by welding, key connection or coupling
connection; the output shaft of the bevel-gear direction converter
is connected to the rotating shaft of the energy accumulation
pressurizer, such as also by welding, key connection or coupling
connection; the suction port 531 of the energy accumulation
pressurizer is in communication with the exhaust port 11 of the
compressor 1, and the discharge port 532 of the scroll compressor
is in communication with the intake port 21 of the condenser 2.
Therefore, when the water stream is flowing (such as when the
seawater is at a rising tide or a falling tide), the impeller of
the hydro-turbine is driven to rotate. The rotation of the impeller
drives the input shaft of the bevel-gear direction converter to
rotate, and the input shaft of the bevel-gear direction converter
drives the output shaft of the bevel-gear direction converter to
rotate. The output shaft further drives the scroll of the energy
accumulation pressurizer to rotate. When the scroll rotates, the
refrigerant is sucked in from the suction port 531 and compressed,
and is then discharged from the discharge port 532.
[0032] With continued reference to FIG. 1, in a possible
embodiment, the sub-cooling unit may be an economizer, an inlet of
the economizer is connected to the liquid outlet 22 of the
condenser 2, a first outlet of the economizer is connected to the
throttling element 3, and a second outlet of the economizer is
connected between the exhaust port 11 of the compressor 1 and the
suction port 531. When the air conditioning system is operating,
the refrigerant discharged from the liquid outlet 22 of the
condenser 2 is divided into two parts when passing through the
economizer, wherein one part is cooled by being evaporated into a
gaseous refrigerant due to throttling, so that the temperature of
the other part is lowered and subcooled to reduce the refrigerant
temperature. The subcooled liquid refrigerant flows out of the
first outlet of the economizer, passes through the throttling
element 3 and enters the evaporator 4 for evaporation and
refrigeration, whereas the uncooled gaseous refrigerant is
discharged to the exhaust port 11 of the compressor 1 through the
second outlet of the economizer, mixes with the refrigerant
discharged from the compressor 1 and then enters the energy
accumulation pressurizer together with the refrigerant for a
second-time pressurizing.
[0033] In the above preferred embodiment, by converting the marine
energy into mechanical energy, that is, by using the marine energy
to provide a driving force for the pressurizer 53, the air
conditioner of the present disclosure can make full use of natural
resources. Especially, the resource of flowing water in a seaside
city can be used to perform a second-time pressurizing on the
refrigerant. In this way, not only a significant pressurizing
effect is achieved, but also the need for an external power source
is eliminated during the pressurizing process, thereby also greatly
saving energy consumption. In addition, as compared with the
multi-stage compressor 1, all the components of the pressurizing
unit of the present disclosure are standard parts, and the assembly
method is simple and reliable, so the purchase cost is relatively
reduced, and the competitiveness of the product is improved.
Through the configuration of the economizer, the present disclosure
can also achieve a lower evaporation temperature and a lower
exhaust temperature of the compressor 1 to improve the cooling
capacity and cooling efficiency of the air conditioning system. As
compared with other compressors 1, since the energy accumulation
pressurizer as selected has no reciprocating mechanism therein, and
the pressurizing can be achieved merely by the rotation of the
scroll, so its structure is simple, the volume is small, the weight
is light, and the reliability is high. In addition, it has high
efficiency and low noise in a range of cooling capacity in which
the present disclosure is adapted, which can improve the user
experience. The hydro-turbine and the bevel-gear direction
converter not only each have a simple structure, but also have a
high durability, which can improve the operating stability of the
air conditioning system.
[0034] It should be noted that the above preferred embodiments are
only used to explain the principle of the present disclosure, and
are not intended to limit the scope of protection of the present
disclosure. Those skilled in the art can adjust the above
arrangements without departing from the principle of the present
disclosure so that the present disclosure can be applied to a more
specific application scenario.
[0035] For example, in an alternative embodiment, there is not only
one arrangement of the pressurizing unit. Those skilled in the art
can adjust the arrangement of the pressurizing unit without
departing from the principle of the present disclosure so that the
present disclosure can be applied to a more specific application
scenario. For example, the pressurizing unit may not include the
converter 52, but includes the receiver 51 which is directly
connected to the pressurizer 53.
[0036] As another example, in another alternative embodiment, the
form of the pressurizer 53 is not invariable, as long as the
pressurizer 53 is arranged such that the refrigerant can be
effectively pressurized by using the driving force provided by the
natural energy without the need for an external power supply. For
example, a plunger structure may be adopted for the energy
accumulation pressurizer, and the converter 52 drives the plunger
to reciprocate to achieve the pressurizing of the refrigerant; or
the pressurizer can also be realized by modifying the existing
compressor. For example, it can be realized by modifying a scroll
compressor in the following way: detaching its driving part and
power part, leaving only a scroll chamber and a scroll, and
connecting a rotating shaft of the scroll to an output shaft of the
bevel-gear direction converter. Therefore, the purpose of using
ocean energy to provide a driving force for the scroll is achieved
so that the refrigerant is pressurized for a second time.
Similarly, for the receiver 51, in addition to the hydro-turbine,
any form of devices capable of converting a marine energy into
mechanical energy can be applied to the present disclosure.
[0037] For another example, in another alternative embodiment, in
addition to the bevel-gear direction converter, a worm-and-gear
direction converter may also be used for the converter 52. In this
case, the input shaft of the worm-and-gear direction converter is
connected to the impeller shaft of the hydro-turbine, and the
output shaft of the worm- and-gear direction converter is connected
to the rotating shaft of the energy accumulation pressurizer.
[0038] For still another example, in another alternative
embodiment, the arrangement of the sub-cooling unit may also be
adjusted. For example, the sub-cooling unit may also be a flasher,
a subcooler, or the like. Alternatively, the sub-cooling unit may
be omitted in the air conditioning system. All these changes do not
deviate from the principle of the present disclosure, and therefore
should fall within the scope of protection of the present
disclosure.
[0039] For still another example, in another alternative
embodiment, in addition to the ocean energy, the natural energy may
also be other energies that can be collected in nature, such as
wind energy. Correspondingly, when the natural energy is wind
energy, the receiver 51 can be a wind turbine, and an impeller
shaft of the wind turbine may be directly connected to the rotating
shaft of the energy accumulation pressurizer or connected to the
rotating shaft through the converter 52, etc., which can also
achieve purpose of providing a driving force for the pressurizer 53
without the need for an external power source so that the
refrigerant can be pressurized for a second time.
[0040] The use of wind energy as the natural energy greatly expands
the application scenarios of the present disclosure, so that the
air conditioning system of the present disclosure can be applied to
areas rich in wind energy in addition to marine energy, thereby
improving the competitiveness of the products of the present
disclosure.
[0041] Heretofore, the technical solutions of the present
disclosure have been described in connection with the preferred
embodiments shown in the drawings, but it can be easily understood
by those skilled in the art that the scope of protection of the
present disclosure is obviously not limited to these specific
embodiments. Those skilled in the art can make equivalent changes
or replacements to the related technical features without departing
from the principle of the present disclosure. The technical
solutions after the modification or replacement will fall within
the scope of protection of the present disclosure.
* * * * *