U.S. patent application number 11/600638 was filed with the patent office on 2007-05-24 for compressor for refrigeratory equipment.
This patent application is currently assigned to A. Solares High Technology Co., Ltd.. Invention is credited to Kuo Cheng Chung.
Application Number | 20070113583 11/600638 |
Document ID | / |
Family ID | 38052143 |
Filed Date | 2007-05-24 |
United States Patent
Application |
20070113583 |
Kind Code |
A1 |
Chung; Kuo Cheng |
May 24, 2007 |
Compressor for refrigeratory equipment
Abstract
A compressor for the refrigeratory equipment is provided. The
compressor includes a casing having a compressing device mounted
therein and a cooling pipe passing through the casing for cooling
the compressing device.
Inventors: |
Chung; Kuo Cheng; (Lujhu
Township, TW) |
Correspondence
Address: |
VOLPE AND KOENIG, P.C.
UNITED PLAZA, SUITE 1600
30 SOUTH 17TH STREET
PHILADELPHIA
PA
19103
US
|
Assignee: |
A. Solares High Technology Co.,
Ltd.
Lujhu Township
TW
|
Family ID: |
38052143 |
Appl. No.: |
11/600638 |
Filed: |
November 16, 2006 |
Current U.S.
Class: |
62/505 ;
62/498 |
Current CPC
Class: |
F25B 31/008 20130101;
F04B 39/062 20130101 |
Class at
Publication: |
062/505 ;
062/498 |
International
Class: |
F25B 31/00 20060101
F25B031/00; F25B 1/00 20060101 F25B001/00 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 21, 2005 |
TW |
094140856 |
Claims
1. A refrigeratory equipment, comprising: a compressor having a
casing and a compressing device contained in the casing; a
condenser connected with the compressor for condensing a
refrigerant coming from the compressor; an expansion valve
connected with the condenser for expanding the refrigerant
condensed by the condenser; an evaporator connected with both the
expansion valve and the compressor wherein the refrigerant coming
from the expansion salve is evaporated for absorbing a heat and the
evaporated refrigerant is transported to the compressor to be
compressed; and a cooling pipeline connected with the casing and
having a cool liquid flowing therein to absorb and to dissipate a
heat from the compressor.
2. A refrigeratory equipment as claimed in claim 1, wherein the
cooling pipeline further comprises an outer section outside of the
casing and an inner section inside of the casing.
3. A refrigeratory equipment as claimed in claim 2, wherein the
outer section is further connected with a heater so as to heat a
substance by the heater.
4. A refrigeratory equipment as claimed in claim 3, wherein the
substance is water.
5. A refrigeratory equipment as claimed in claim 1, wherein the
cooling pipeline is further connected with an auxiliary cooling
pipeline for cooling a substance in the cooling pipeline.
6. A refrigeratory equipment as claimed in claim 5, wherein the
cooling pipeline is further connected to a rotary cooling
pipeline.
7. A compressor configuration for a refrigeratory equipment,
comprising: a casing having a compressing device mounted therein;
and a cooling pipe passing through the casing for cooling the
compressing device.
8. A compressor configuration as claimed in claim 7, wherein the
cooling pipe comprises an outer section outside of the casing and
an inner section inside of the casing.
9. A compressor configuration as claimed in claim 8, wherein the
inner section includes a plurality of manifolds.
10. A compressor configuration as claimed in claim 9, further
comprising a fin disposed between the manifolds.
11. A compressor configuration as claimed in claim 7, wherein the
cooling pipe is connected with a heater wherein the heater uses a
heat absorbed by the cooling pipe for heating.
12. A compressor configuration as claimed in claim 7, further being
connected with a condenser for condensing a refrigerant, a pressure
releaser and an evaporator, wherein the cooling pipe is connected
with the condenser for introducing the refrigerant condensed by the
condenser into the casing.
13. A compressor configuration as claimed in claim 12, wherein the
pressure releaser is an expansion valve.
14. A compressor configuration for a refrigeratory equipment,
comprising: a compressing device having a first cooling channel for
cooling the compressing device; and an electromotor having a second
cooling channel connected to the first cooling channel for cooling
the electromotor, wherein a heat generated from both the
compressing device and the electromotor is dissipated from the
compressor configuration.
15. A compressor configuration as claimed in claim 14, further
comprising a cooling device connected with the first and the second
cooling channels, wherein the cooling device has a working fluid
circulating between an inside of the compressing configuration and
the cooling device, wherein the working fluid absorbs a heat at the
first and the second cooling channels and is further cooled at the
cooling device.
16. A compressor configuration as claimed in claim 15, wherein the
cooling device further comprises a first auxiliary cooling pipeline
for cooling the working fluid coming from the compressor
configuration.
17. A compressor configuration as claimed in claim 16, wherein the
cooling device further comprises a second auxiliary cooling
pipeline for cooling the working fluid coming from the first
auxiliary cooling pipeline.
18. A compressor configuration as claimed in claim 17, wherein the
second auxiliary cooling pipeline is a rotary cooling pipe.
19. A compressor configuration as claimed in claim 18, wherein the
rotary cooling pipe is a rotating heat pipe.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a refrigeratory equipment
and its compressor. More particularly, the refrigeratory equipment
can absorb and dissipate the mechanical heat produced by the
compressor.
BACKGROUND OF THE INVENTION
[0002] The conventional refrigeratory equipment comprises several
components. In the compressor, the refrigerant is compressed and
converted into a high pressure and high temperature gas. Once
compressed, the hot refrigerant is then discharged into a condenser
and converted into a low temperature liquid state. After that, the
pressure of the liquid refrigerant is decreased and the liquid
refrigerant is converted into the gas refrigerant by a pressure
releaser which is usually a capillary or an expansion salve. When
the refrigerant is cooled, it is then delivered into a evaporator
wherein the evaporation of the refrigerant is the cause of the
decrease of the temperature. For air conditioners, what exchanges
heat energy with the evaporator is room air.
[0003] There are two major devices in the compressor. One is a
electromotor and the other is a compressor drived by the
electromotor. The reciprocating compressor uses a motor driven
crankshaft to drive internal pistons. For the rotary compressor and
the scroll compressor, the compression of the refrigerant is driven
by a rotor in the compressor. However, frictional heat is generated
in all these mechanical devices and the electromotor produces heat
itself too. Although in the compressor heat energy is dispersed by
the refrigerant which functions as the cooling fluid, the heat
energy causes temperature of the gas refrigerant to rise even up to
150.degree. C. Hence, more energy has to be consumed to condense
the refrigerant after heat is absorbed at compressor, and therefore
the efficiency of the compressor is quite low. Otherwise, though
there is lubricant between the ring and rotor and in the bearing of
the compressor and the electromotor, it absorbs heat when the
compressor and the electromotor work. There is no specific heat
sink for lubricant, so it has no way to disperse its heat
energy.
[0004] Therefore, because of the defect in the prior art, the
inventors provide a refrigeratory equipment and its compressor to
effectively overcome the demerit that there is no way to disperse
the mechanical heat generated in the compressor existing in the
prior art.
SUMMARY OF THE INVENTION
[0005] In accordance with an aspect of the present invention, a
refrigeratory equipment is provided. The refrigeratory equipment
comprises a compressor having a casing and a compressing device
contained in the casing, a condenser connected with the compressor
for condensing a refrigerant coming from the compressor, an
expansion valve connected with the condenser for expanding the
refrigerant condensed by the condenser, an evaporator connected
with both the expansion valve and the compressor wherein the
refrigerant coming from the expansion salve is evaporated for
absorbing a heat and the evaporated refrigerant is transported to
the compressor to be compressed, and a cooling pipeline connected
with the casing and having a cool liquid flowing therein to absorb
and to dissipate a heat from the compressor.
[0006] Preferably, the cooling pipeline further comprises an outer
section outside of the casing and an inner section inside of the
casing.
[0007] Preferably, the outer section is further connected with a
heater so as to heat a substance by the heater.
[0008] Preferably, the substance is water.
[0009] Preferably, the cooling pipeline is further connected with
an auxiliary cooling pipeline and a rotary cooling pipeline for
cooling a substance in the cooling pipeline.
[0010] In accordance with another aspect of the present invention,
a compressor configuration for a refrigeratory equipment is
provided. The compressor configuration comprises a casing having a
compressing device mounted therein and a cooling pipe passing
through the casing for cooling the compressing device.
[0011] Preferably, the cooling pipe comprises an outer section
outside of the casing and an inner section inside of the
casing.
[0012] Preferably, the inner section includes a plurality of
manifolds.
[0013] Preferably, the compressor configuration further comprises a
fin disposed between the manifolds.
[0014] Preferably, the cooling pipe is connected with a heater
wherein the heater uses a heat absorbed by the cooling pipe for
heating.
[0015] Preferably, the cooling pipe is further connected with a
condenser for condensing a refrigerant, a pressure releaser and an
evaporator, wherein the cooling pipe is connected with the
condenser for introducing the refrigerant condensed by the
condenser into the casing.
[0016] Preferably, the pressure releaser is an expansion valve.
[0017] In accordance with a further aspect of the present
invention, a compressor configuration for a refrigeratory equipment
is provided. The compressor configuration comprises a compressing
device having a first cooling channel for cooling the compressing
device, an electromotor having a second cooling channel connected
to the first cooling channel for cooling the electromotor, wherein
a heat generated from both the compressing device and the
electromotor is dissipated from the compressor configuration.
[0018] Preferably, the compressor configuration further comprises a
cooling device connected with the first and the second cooling
channels, wherein the cooling device has a working fluid
circulating between an inside of the compressing configuration and
the cooling device, wherein the working fluid absorbs a heat at the
first and the second cooling channels and is further cooled at the
cooling device.
[0019] Preferably, the cooling device further comprises a first
auxiliary cooling pipeline for cooling the working fluid coming
from the compressor configuration and a second auxiliary cooling
pipeline for cooling the working fluid coming from the first
auxiliary cooling pipeline.
[0020] Preferably, the second auxiliary cooling pipeline is a
rotary cooling pipe.
[0021] Preferably, the rotary cooling pipe is a rotating heat
pipe.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] FIG. 1 is a diagram showing the compressor used for the
refrigeratory equipment according to the present invention;
[0023] FIG. 2 is an embodiment according to the present
invention;
[0024] FIG. 3 is another embodiment according to the present
invention;
[0025] FIG. 4 is an embodiment of the refrigeratory equipment
according to the present invention; and
[0026] FIG. 5 is another embodiment of the refrigeratory equipment
according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0027] In order to solve the problem of the low efficiency of the
conventional compressor, the present invention proposes a
compressor for the refrigeratory equipment. To achieve the purpose
of improving the efficiency of the compressor, cooling outside and
inside of the compressor is focused.
[0028] Please refer to FIG. 1, which is a diagram showing the
compressor used for the refrigeratory equipment according to the
present invention. As shown, a compressor 1 comprises an
electromotor 12 and a compressing device 10. Although FIG. 1 is
illustrated with a rotary compressor, but the type of compressor
can be varied. The electromotor 12 drives a rotor 100 in the
compressing device 10 via a transmission shaft 120 to compress a
refrigerant. For achieving the purpose of taking away the heat
generated by the compressor 1, a first cooling channel 31 is
installed in the compressing device 10 and a second cooling channel
32 is installed in the electromotor 12. The effect of taking away
the heat energy generated by the compressing device 10 or the
electromotor 12 is achieved by a working fluid flowing in the first
cooling channel 31 and the second cooling channel 32.
[0029] Please refer to FIG. 1 again. The compressor has a casing 13
for containing the compressing device 10 and the electromotor 12.
The first and the second cooling channels 31, 32 are also contained
in the casing 13, so they are called the inner section as well. A
first outer section 33a and a second outer section 33b are outside
of the casing 13, wherein they are used to introduce the working
fluid into the refrigeratory equipment and introduce the working
fluid coming from the refrigeratory equipment into the casing 13
again. Before arriving the first cooling channel 31, the working
fluid which flows through the first outer section 33a to the casing
13 arrives a first circular section 30a first. It is because that
in order to have better cooling effect, there are a plurality of
the first cooling channels 31. The working fluid is distributed to
each first cooling channel 31 via the first circular section 30a
connected to the first outer section 33a. The working fluid then
flows to the second cooling channel 32 which usually directly takes
the heat generated from the electromotor 12 away by passing through
a silicon steel-sheet 121 of the electromotor 12. Of course the
number and the size between the first and the second cooling
channels 31, 32 can be different, which depends on the actual
necessity of the compressor. The working fluid coming from the
second cooling channel 32 is converged at a second circular section
30b and then flows to a second outer section 33b. The
aforementioned working fluid passes the first cooling channel 31
first and then the second cooling channel 32; however it can flow
in opposite direction, which depends on the actual necessity of the
compressor as well. The working fluid can flow from lower
temperature devices to higher temperature ones in principle. The
second outer section is further connected to a cooling device.
After the working, fluid is cooled in the cooling device, it flows
back into the compressor configuration again. In addition, in order
to increase the rate of heat exchange, a fin 310 is configured
outside of the first cooling channel 31 to increase the heat
exchanging area.
[0030] FIG. 2 is an embodiment according to the present invention,
wherein the compressor 1 is covered by a shell 5. A cooling space
30 formed between the compressor 1 and the shell 5 is connected to
the cooling device 4 by the first outer section 33a and the second
outer section 33b. The cooling device 4 is used to cool the
compressor 1 via introducing a working fluid coming from the first
outer section 33a into the cooling space 30, where the working
fluid absorbs heat generated from the compressor 1, and then
the-working fluid is discharged from the space via the second outer
section 33b and flows back to the cooling device 4. The heat
absorbed from the compressor 1 is taken away in the cooling device
4, and then the cooled working fluid is introduced into the cooling
space 30 again and moves in circles for cooling the compressor
1.
[0031] FIG. 3 is another embodiment according to the present
invention. The embodiment of FIG. 3 is advantageous to reduce the
volume of the compressor, because the embodiment of FIG. 2 occupies
more space. An outer cooling pipeline 8 wraps around the outside of
the compressor 1. The working fluid, which is used to cool the
compressor 1, enters an entry 81a of the outer cooling pipeline 8
and is discharged from an exit 81b. Both the two outer sections are
connected to the cooling device 4, as shown in FIG. 2. Please refer
to FIG. 2 for the functions of the cooling device 4.
[0032] Please refer to FIG. 4, which shows an embodiment of the
refrigeratory equipment according to the present invention. As
shown, the refrigeratory equipment cormprises a compressor 1. After
compressing a refrigerant, the high pressure and high temperature
refrigerant is delivered into a condenser 6a by a first pipe 7a and
converted into a low temperature liquid state. After that, the
reprigerant is further delivered into a pressure releaser 6b by a
second pipe 7b. The pressure of the liquid refrigerant is reduced
by the pressure releaser 6b which is usually a capillary or an
expansion salve. Furthermore, the refrigerant is then delivered
into a evaporator 6c by a third pipe 7c. The evaporator 6c is
usually a type of heat exchanger. If the refrigeratory equipment is
an air conditioner, then the evaporator 6c that functions as a heat
exchanger exchanges heat with room air to reduce room temperature.
The temperature of the refrigerant in the evaporator 6c will rise
and the refrigerant will be delivered back to the compressor 1 by a
fourth pipe finally. Concering the second pipe 7b, a shunt 7b' is
designed in the present invention for collecting part of the
working fluid to cool the compressor 1. Therefore, the shunt 7b' is
a tool for the entry of the working fluid into a cooling device of
a compressor configuration 3'. The shunt 7b' can be connected to
the first outer section 33a, as shown in FIG. 1. Reffering to FIG.
1, the mechanical and electricalal heat generated from the
compressor 1 will be taken away by the first and the second cooling
channels 31, 32 in the compressor 1. Therefor, the first and the
second cooling channels 31, 32 in FIG. 1 constitute the cooling
device of the compressor configuration 3' in FIG. 4. Moreover, the
shunt 7b' can be connected to the first outer section 33a, as shown
in FIG. 2, and leads the working fluid into the cooling space 30
for cooling the compressor 1. Thus, the cooling space 30 in FIG. 2
constitutes the cooling device of the compressor configuration 3'
in FIG. 4. Furthermore, the shunt 7b' can be connected to the entry
81a of the outer cooling pipeline 8, as shown in FIG. 3, for
cooling the compressor 1. Therefore, the outer cooling pipeline 8
in FIG. 3 constitutes the cooling device of the compressor
configuration 3' in FIG. 4.
[0033] Please refer to FIG. 4 again. After the working fluid enters
the cooling device of the compressor configuration 3', the
compressed working fluid, which is a refrigerant, then enters the
condenser 6a. Accordingly, working fluid circles in the cooling
device of the compressor configuration 3' are formed.
[0034] Please refer to FIG. 5, which shows another embodiment of
the refrigeratory equipment according to the present invention. The
refrigeratory equipment comprises a compressor 1. Once the
refrigerant is compressed, it is then discharged into a condenser
6a by the first pipe 7a, and the high pressure and high temperature
refrigerant will be condensed into a low temperature liquid state.
After that, the reprigerant is further delivered into a pressure
releaser 6b by the second pipe 7b. The pressure of the liquid
refrigerant is decreased by the pressure releaser 6b which is
usually a capillary or an expansion salve. Furthermore, the
refrigerant is then delivered into a evaporator 6c by the third
pipe 7c. The evaporator 6c is usually a type of heat exchanger. If
the refrigeratory equipment is an air conditioner, the evaporator
6c that functions as a heat exchanger exchanges heat with room air
to reduce room temperature. The temperature of the refrigerant in
the evaporator 6c will rise and the refrigerant will be delivered
back to the compressor 1 by a fourth pipe finally. However, the
characteristic of the embodiment of FIG. 5 lies in a cooling device
4 for cooling the compressor 1. The cooling device 4 comprises a
refrigeratory 40 and a cooling pipe that includes a first cooling
pipe 4a, a second cooling pipe 4b and a third cooling pipe 4c. The
refrigeratory 40 will introduce a cooled working fluid into the
compressor 1 by the third cooling pipe 4c. After the working fluid
absorbs the mechanical and electrical heat generated from the
compressor 1, it will be delivered back to the refrigeratory 40 by
the first cooling pipe 4a for cooling. In respect of the
refrigeratory 40, it is a heat exchanger such as an air-cooled or a
water-cooled heat exchanger. Furthermore, the refrigeratory 40
comprises a cooling loop pipe 41 and a rotating heat pipe 42 for
increasing the cooling efficiency. Besides, the cooling loop pipe
41 can be a shell and tube heat exchanger, a plate heat exchanger,
an air-cooled cooling tower, or a cooling tower.
[0035] Please refer to FIG. 5 and FIG. 1 again. Because the cooling
device 4 is used to cool the compressor 1, it is connected to the
first outer section 33a and the second outer section 33b. That is
to say, the third cooling channel 4c is connected to the first
outer section 33a, and the first cooling channel 4a is connected to
the second outer section 33b. Hence, after the working fluid is
cooled by the cooling device 4, it is then introduced into the
compressor 1 by the interconnected third cooling channel 4c and
first outer section 33a. In the first and second cooling channels
31, 32, the working fluid absorbs mechanical and electrical heat
generated by the compressor 1. Then, the working fluid is delivered
from the compressor 1 via the interconnected first cooling channel
4a and second outer section 33b to the cooling device 4.
[0036] Please refer to FIG. 5 and FIG. 2 again. Because the cooling
device 4 is used to cool the compressor 1, it is connected to the
first outer section 33a and the second outer section 33b. That is
to say, the third cooling channel 4c is connected to the first
outer section 33a, and the first cooling channel 4a is connected to
the second outer section 33b. Thus, after the working fluid is
cooled by the cooling device 4, it is then introduced into the
cooling space 30 formed between the compressor 1 and the shell 5 by
the interconnected third cooling channel 4c and first outer section
33a. After the working fluid exchanges heat with the compressor 1,
it is discharged from the cooling space 30 via the second outer
section 33b and enters the cooling device 4 again via the first
cooling channel 4a.
[0037] Please refer to FIG. 5 and FIG. 3 again. Because the cooling
device 4 is used to cool the compressor 1, the working fluid that
is cooled by the cooling device 4 will enter the entry 81a as shown
in FIG. 3, pass the outer cooling pipeline 8, and then is
discharged from the exit 81b. Therefore, the entry 81a is connected
to the third cooling channel 4c in FIG. 5, and the exit 81b is
connected to the first cooling channel 4a in FIG. 5. Accordingly, a
cooling loop for cooling the compressor is formed.
[0038] Therefore, according to the aforementioned embodiments, the
characteristic of the present invention lies in the cooling for the
compressor. The reason for cooling the compressor is that
mechanical elements for compressing the refrigerant in the
compressor and the electromotor used to drive the mechanical
elements all generate heat. The heat leads to the decrease in the
efficiency of the compressor. Hence, the present invention proposes
a configuration for cooling the compressor to solve the mentioned
problem. The compressor will be efficiently cooled by the cooling
channel that is inside of the compressor as shown in FIG. 1, or the
cooling space formed outside of the compressor as shown in FIG. 2,
or the cooling pipeline configured outside of the compressor as
shown in FIG. 3. The operating system of the refrigeratory
equipment that possesses the function of cooling the compressor is
illustrated in FIG. 4 and FIG. 5, wherein the working fluid of the
refrigeratory equipment itself is used to cool the compressor in
FIG. 4, and an independent cycle is used to cool the compressor in
FIG. 5.
[0039] While the invention has been described in terms of what is
presently considered to be the most practical and preferred
embodiments, it is to be understood that the invention needs not be
limited to the disclose embodiments. Therefore, it is intended to
cover various modifications and similar arrangements included
within the spirit and scope of the appended claims, which are to be
accorded with the broadest interpretation so as to encompass all
such modifications and similar structures.
* * * * *