U.S. patent application number 11/998275 was filed with the patent office on 2008-11-13 for energy saving and environmentally friendly atmospheric dehumidifier chiller for drinking purposes.
Invention is credited to Arda Rahardja Lukitobudi.
Application Number | 20080276630 11/998275 |
Document ID | / |
Family ID | 39968295 |
Filed Date | 2008-11-13 |
United States Patent
Application |
20080276630 |
Kind Code |
A1 |
Lukitobudi; Arda Rahardja |
November 13, 2008 |
Energy saving and environmentally friendly atmospheric dehumidifier
chiller for drinking purposes
Abstract
A method and machine to produce drinking water from fresh air
using an energy saving and environmentally friendly chiller is
comprising the following steps of: Filtering and sterilize fresh
air, then passed to several evaporator coils to condensate the
moisture and the condensate collected to a pan. Passing secondary
condenser by cold air after passing evaporator coil and dipping
tertiary condenser to a cold condensate water tank, so the
refrigerant after the condenser will be subcooled and after passing
through the expansion valve, will heat exchange with the brine as a
secondary refrigerant in the heat exchanger. Where brine is passed
to several evaporator coils in air handling unit to cool and
condensate the moisture passing through the air handling unit, a
part of the air will condensate and the other part will passed to a
cooled room where the cold air of the room then will exhaust and
used to cool the main condenser through the exhaust air duct.
Inventors: |
Lukitobudi; Arda Rahardja;
(Cimahi, ID) |
Correspondence
Address: |
FAY SHARPE LLP
1100 SUPERIOR AVENUE, SEVENTH FLOOR
CLEVELAND
OH
44114
US
|
Family ID: |
39968295 |
Appl. No.: |
11/998275 |
Filed: |
November 29, 2007 |
Current U.S.
Class: |
62/93 ;
62/291 |
Current CPC
Class: |
Y02A 20/00 20180101;
Y02A 20/152 20180101; Y02A 20/109 20180101; B01D 5/0057 20130101;
B01D 53/265 20130101; F24F 3/153 20130101; B01D 5/009 20130101;
E03B 3/28 20130101; Y02A 20/154 20180101 |
Class at
Publication: |
62/93 ;
62/291 |
International
Class: |
E03B 3/28 20060101
E03B003/28 |
Foreign Application Data
Date |
Code |
Application Number |
May 8, 2007 |
ID |
P00200700212 |
Claims
1. The water production machine comprising: an air handling unit; a
plurality of evaporator coils to condense moisture; a drip pan for
each evaporator coil to collect water condensation; wherein the air
handling unit is connected to fresh air, in an intake of the air
handling unit are installed several air filters and UV lights to
sanitize the air, in the air handling unit are installed the
evaporator coils to condense the moisture, and at a bottom of the
air handling unit below each evaporator coil one of the drip pans
is installed to collect the water condensation from each evaporator
coil, a water pipe collects the water condensation which water pipe
is connected to a condensate water tank and passed a condenser coil
and then supplied to a water reservoir/storage tank.
2. The water production machine of claim 1, further including a i
chiller, in which a heat exchanger chills brine by expanded
refrigerant from the condenser, and a pump circulates the brine to
each evaporator coil to condense the moisture and back to the heat
exchanger.
3. The water production machine of claim 1, further including using
brine as a cooling medium to save refrigerant of a chiller and to
facilitate remote water treatment.
4. The water production machine of claim 1, further including using
brine as a cooling medium to ease assembly if there is an air or
water capacity improvement.
5. The water production machine of claim 1, further including using
brine as a cooling medium and an environmentally friendly
refrigerant whereby an environmentally friendly substance
application is gained.
6. The water production machine of claim 1, wherein all elements of
the air handling unit including all pipe, parts, and a water pump
through which the condensate water is passed are made of foodgrade
metal, preferable stainless steel.
7. An energy saving chiller comprising: a main condenser which is
cooled by cooled room exhaust air, a secondary condenser which is
in series with the main condenser and is further cooled by cold air
after passing evaporator coils in an air handling unit, a tertiary
condenser which is in series with the secondary condenser is dipped
in cold condensate water which is produced by the evaporator and by
cooling the main, secondary and tertiary condensers, the
refrigerant will be subcooled, so after such that the refrigerant
is expanded by an expansion valve, conveyed to a heat exchanger,
compressed by a compressor and supplied to the condensers, whereby
the work of the compressor is decreased due to cooling of the
condensers and save the energy.
8. A combination of a chiller and a water generator which saves
energy and is environmentally friendly, of the combination
comprising: a water generator machine using evaporator coils of the
chiller; and the chiller using air and condensate water from the
evaporator coils to cool a secondary condenser and a tertiary
condenser; wherein refrigerant from the cooled condensers is passed
to an expansion valve and chills brine as a secondary cooling
medium in a heat exchanger and chills the air and condenses the
moisture from the air passing over the evaporator coils in air
handling unit, the condensed water drips as drinking water and the
drinking water drip is collected in a tank and circulate to a
drinking water reservoir/storage tank.
9. A method of producing drinking water from fresh air using an
energy saving and environmentally friendly chiller, comprising of
the following steps: filtering and sanitizing fresh air containing
moisture, passing the air over evaporator coils to condense the
moisture from the air, and passing the air over a secondary
condenser after passing over evaporator coils, cooling a tertiary
condenser with the condensed moisture in a water tank, such that
refrigerant in the tertiary condenser is subcooled, passing the
subcooled refrigerant through an expansion valve, cooling brine
with the expanded refrigerant in a heat exchanger, passing the
brine through the evaporator coils to cool and condense the
moisture from the passing air, passing air cooled by the evaporator
coils to a cooled room, using cooled air exhausted from the room to
cool a main condenser.
Description
FIELD OF THE INVENTION
[0001] This invention related to an energy saving and
environmentally friendly atmospheric dehumidifier chiller for
drinking purposes. Fresh air is passed to an air duct of an air
handling unit which installed several evaporator coils to
condensate the air to produce fresh water and cold air. Cold air
and cold water are passed to the condensing coils separately to
save the energy.
BACKGROUND OF THE INVENTION
[0002] Water shortage which have been suffered to many countries in
the world is a crisis. Many countries in the world also suffer for
drinking water. Usable water supplies have reduced by pollution
contamination and sewage waste. Water treatment such as with
chemicals as chlorine or other halogens, however the by-products of
such treatment may be toxic and the result in further
contamination. Treated municipal water supplies may be
contaminated, with may lead to health problems in such drinking
water.
[0003] Various attempts have been made to overcome with a system
for dehumidifying moisture of air and purifying the water produced
in such systems for drinking purposes.
[0004] In Patent no. WO 2004/027165 A1, a device to condense the
water to produce drinking water which generated from the humidity
of the air is a dehumidifier which provide an air cooled
condensation surface and water production. But in this device there
is no saving energy and the water produced is too cold and need a
fan to produce fresh water.
[0005] In U.S. Pat. No. 5,553,459, a device is said to produce
water from room air. A compressor is provided to compress the
refrigerant, a condenser to condensate the refrigerant from the
compressor. An evaporator coil is operated to evaporate the
refrigerant and cool the water in a water reservoir. A water
condensate generator coil is provided to condensate the moisture
from room air by the cold drinking water from the water reservoir
which is passed to the water condensate generator coil before
return it to the water reservoir. There is no energy saving in this
water generator device and this device just circulate the water to
generate the drinking water which is cooled by evaporator coil.
[0006] WO 2007/009488A1 discloses of an air cooling method which
the air is cooled first in a precooler and then cooled in the main
cooler to boost the water condensation. This method haves a good
energy saving and boost the water condensation and the cold air
from the main cooler which is supplied to the precooler as a
cooling medium. This method only talk about energy saving by
cooling stages and not for a cooler to generate the drinking
water.
[0007] So the objective of this invention is to save energy of an
chiller and acting as well as water generator as mentioned
above.
BRIEF DESCRIPTION OF THE INVENTION
[0008] The main objective of this invention is to provide a machine
which be able to produce drinking water by condensating the
moisture of the humid air and saving the energy by handling the air
as a cooling medium of the condenser.
[0009] The water production machine of this invention includes:
[0010] Air handling unit; [0011] Several evaporator coils to
condensate the moisture; [0012] Drip pan to each evaporator coil to
collect the water condensation; [0013] Where the air handling unit
is connected to fresh air, in the intake of the air handling unit
is installed several air filters and UV lights to sterilize and the
health of air as the water supply, in the air handling unit is
installed several evaporator coils to condensate the moisture, and
at the bottom of the air handling unit below each evaporator coil
is installed drip pan of the condensate which is generate from each
coil, a water pipe to collect the water which is connected to a
condensate water tank and passed to condenser coil and then
supplied to a water reservoir/storage tank.
[0014] The water production machine of this invention is in a one
unit with the chiller, where a heat exchanger to chill the brine by
the expanded refrigerant from the condenser, a pump to circulate
the brine to each evaporator coil to condensate the moisture and
back to the heat exchanger.
[0015] The water production machine of this invention where all
equipments of the air handling unit include all pipe, parts and
water pump which is passed by the condensate water of this water
production machine should made of foodgrade metal, preferable made
of stainless steel.
[0016] The water production machine of this invention using brine
as a cooling medium, is to save the refrigerant of the chiller and
to ease a remote water treatment.
[0017] The water production machine of this invention using brine
as a cooling medium, is to ease assembly if there is any air or
water capacity improvement.
[0018] The water production machine of this invention using brine
as a cooling medium and an environmentally friendly refrigerant is
to gain environmentally friendly substance application.
[0019] An energy saving chiller includes: main condenser which is
cooled by the cooled room exhaust air, secondary condenser which is
in series with the main condenser, is further cooled by the cold
air after passing the evaporator coils in air handling unit,
tertiary condenser which is in series with the secondary condenser,
is dipped to a cold condensate water which is produced by the
evaporator coils, and by cooling the three condensers, the
refrigerant will be subcooled, so after expanded by the expansion
valve to the heat exchanger, and after compressed by the compressor
to the condenser, the work of the compressor is decrease due to the
handling of the cooling medium of the condenser which will save the
energy.
[0020] A combine of a chiller and a water generator which save
energy and environmentally friendly consist of : a water generator
machine using evaporator coils of a chiller; and a chiller using
air and condensate water of evaporator coils to cool the secondary
and tertiary condenser; Where the refrigerant of the cooled
condensers are passed to a expansion valve, will chill the brine as
a secondary cooling medium in a heat exchanger and yet will be used
to chill the air and condensate the moisture of the air passed the
evaporator coils in air handling unit, the condensate will drip as
a drinking water and the drinking water drip collected to a pan and
circulate to a drinking water reservoir/storage tank.
[0021] A method to produce drinking water from fresh air using
energy saving and environmentally friendly chiller, comprising of
the following steps: [0022] Filtering and sterilize fresh air, then
passed to several evaporator coils to condensate the moisture and
the condensate collected to a pan. [0023] Passing secondary
condenser by cold air after passing evaporator coils and dipping
tertiary condenser to a cold condensate water tank, so the
refrigerant after the condenser will be subcooled and after passing
through the expansion valve, will heat exchange with the brine as a
secondary refrigerant in the heat exchanger. [0024] Where brine is
passed to several evaporator coils in air handling unit to cool and
condensate the moisture passing through the air handling unit, a
part of the air will condensate and the other part will passed to a
cooled room where the cold air of the room then will exhaust and
used to cool the main condenser through the exhaust air duct.
BRIEF DESCRIPTION OF THE DRAWING
[0025] To illustrate this invention, will be describe by the
following drawing.
[0026] FIG. 1, a schematic drawing of a drinking water production
chiller from fresh air which energy save and environmentally
friendly.
DETAILED DESCRIPTION OF THE INVENTION
[0027] The following description will describe in details of an
energy saving and environmentally friendly drinking water
production chiller.
[0028] The description of the drawing, compressor (1) will compress
refrigerant vapour to the main condenser (4) through discharge line
(2) in high pressure and temperature. The main condenser (4) is
cooled by cold air exhaust from the room (26), and not from the hot
fresh air, so it will save the energy. Due to cold air exhaust from
the room is not enough to cool the main condenser, it is necessary
to have a back up air from the outside fresh air (27) which will be
mixed to the cold air exhaust from the room. With the exhaust air
duct (31) the mixing air is circulate to the main condenser by
condenser fan (28) then exhaust to outdoor through exhaust air exit
(29). After passing the main condenser (4), the refrigerant then
passed to the second condenser (5) which is installed in series
with the main condenser so that it is as a separate extension of
the main condenser. In the second condenser (5) the refrigerant is
further cooled by the cold air of the dehumidifier evaporator coils
(14) of an air handling unit (30) so that can save further the
energy. After passing the second condenser (5), the refrigerant is
in a liquid state which then passed to a third condenser (6) which
is installed in series with the second condenser so that it is as a
further separate extension of the main condenser of a condenser
liquid cooler so that the liquid refrigerant is being subcooled so
that it can further save the energy. The refrigerant is then passed
to the expansion valve (10) through the filter dryer (7) and sight
glass (9) in the liquid line (8). After the refrigerant being
expanded then the refrigerant pressure and temperature will drop
significantly and enter to the heat exchanger (11) which the
refrigerant will chill the brine (13). After passing the heat
exchanger (11) the refrigerant will be back to the compressor (1)
through the suction line (3).
[0029] In the mean time the brine (13) is pumped by the brine pump
(12) to the dehumidifier evaporator coils (14) in the air handling
unit (30). After passing the evaporator coils (14) the brine (13)
will be back to the heat exchanger (11) to recooled.
[0030] In the air handling unit (30), the outdoor fresh air (15)
will enter the air pre filter (16) and the medium filter (17) to be
eliminated from the dust, dirt, and other pollutant. Then the fresh
air (15) is passed to the ultraviolet lights (18) to kill the
bacteria and pathogenic mold to sterilize the air then passed to
the dehumidifier evaporator coils (14). In the dehumidifier
evaporator coils (14), the moisture of the fresh air (15) will
condense. The drip of the condensation will be collected to the
drip pan (19) and then will be passed to the condenser liquid
cooler (6) which is enough to cool the separate further extended
condenser. After passing the condenser liquid cooler (6), the
condensed water or the pure drinking water is ready to be pumped by
the water pump (22) to the storage tank (32). In the mean time the
fresh air after being condensed in the evaporator coils (14) is
re-radiated by the ultraviolet light (20) to be sterilized before
circulated by the blower (21) of the air handling unit to the room
(25) through air duct (23) so that the cold air (24) will enter the
room.
[0031] It is important to control so that the fresh air is cooled
at the dew point so that the moisture will condense at this point.
It is also necessary to control the refrigerant pressure to a
minimum and maximum allowable pressure to maintain the compressor
(1) in a safe condition. Oil pressure control is also necessary to
make sure that the oil is always present in the compressor (1). If
the air pre and medium filters are dirty and need to be changed, so
it is necessary to have a control to make a sign that those filters
should have to be changed.
[0032] The water production machine of this invention includes:
[0033] Air handling unit (30); [0034] Several evaporator coils to
condense the moisture (14); [0035] Drip pan (19) to each evaporator
coil (14) to collect the water condensation; [0036] Where the air
handling unit (30) is connected to fresh air, in the intake (15) of
the air handling unit is installed several air filters (16 &
17) and UV lights (18 & 20) to sterilize and the health of air
as the water supply, in the air handling unit (30) is installed
several evaporator coils (14) to condensate the moisture, and at
the bottom of the air handling unit below each evaporator coil is
installed drip pan (19) of the condensate which is generate from
each coil, a water pipe to collect the water which is connected to
a condensate water tank and passed to condenser coil (6) and then
supplied to a water reservoir/storage tank (32).
[0037] The water production machine of this invention is in a one
unit with the chiller, where a heat exchanger (11) to chill the
brine by the expanded refrigerant from the condenser, a pump (12)
to circulate the brine to each evaporator coil (14) to condensate
the moisture and back to the heat exchanger (11).
[0038] The water production machine of this invention where all
equipments of the air handling unit (30) include all pipe, parts
and water pump which is passed by the condensate water of this
water production machine should made of foodgrade metal, preferable
made of stainless steel.
[0039] The water production machine of this invention using brine
as a cooling medium, is to save the refrigerant of the chiller and
to ease a remote water treatment.
[0040] The water production machine of this invention using brine
as a cooling medium, is to ease assembly if there is any air or
water capacity improvement.
[0041] The water production machine of this invention using brine
as a cooling medium and an environmentally friendly refrigerant is
to gain environmentally friendly substance application.
[0042] An energy saving chiller is comprises: main condenser (4)
which is cooled by the cooled room exhaust air, secondary condenser
(5) which is in series with the main condenser (4), is further
cooled by the cold air after passing the evaporator coils in air
handling unit, tertiary condenser (6) which is in series with the
secondary condenser, is dipped to a cold condensate water which is
produced by the evaporator coils, and by cooling the three
condensers, the refrigerant will be subcooled, so after expanded by
the expansion valve to the heat exchanger, and after compressed by
the compressor to the condenser, the work of the compressor is
decrease due to the handling of the cooling medium of the condenser
which will save the energy.
[0043] A combine of an energy saving and environmentally friendly
chiller and a water generator includes: a water generator machine
using evaporator coils of a chiller; and a chiller using air and
condensate water of evaporator coils (14) to cool the secondary and
tertiary condenser (5 and 6); Where the refrigerant of the cooled
condensers (5 and 6) are passed to an expansion valve, will chill
the brine as a secondary cooling medium in a heat exchanger (11)
and yet will be used to chill the air and condensate the moisture
of the air passed the evaporator coils (14) in air handling unit
(30), the condensate will drip as a drinking water and the drinking
water drip collected to a pan (19) and circulate to a storage tank
(32).
[0044] A method to produce drinking water from fresh air using
energy saving and environmentally friendly chiller, comprising of
the following steps: [0045] Filtering and sterilize fresh air, then
passed to several evaporator coils (14) to condensate the moisture
and the condensate collected to a pan. [0046] Passing secondary
condenser (5) by cold air after passing evaporator coils and
dipping tertiary condenser (6) to a cold condensate water tank, so
the refrigerant after the condenser will be subcooled and after
passing through the expansion valve, will heat exchange with the
brine as a secondary refrigerant in the heat exchanger (11). [0047]
Where brine is passed to several evaporator coils (14) in air
handling unit (30) to cool and condensate the moisture passing
through the air handling unit (30), a part of the air will
condensate and the other part will passed to a cooled room (25)
where the cold air of the room then will exhaust and used to cool
the main condenser through the exhaust air duct.
[0048] While the necessary sensors are sensing the parameter of as
follows: discharge pressure, suction pressure, discharge
temperature, suction temperature, outdoor air temperature and
relative humidity, before evaporator coil air temperature and
relative humidity, after evaporator coil air temperature and
relative humidity, room air temperature and relative humidity, etc.
The electrical sensors are as follows: electrical voltage,
electrical frequency, electrical motor cos phi, electrical motor
rpm, compressor electrical current, condenser fan electrical
current, air handling unit blower electrical current, total
electrical current, ultraviolet lamp indicator, compressor lamp
indicator, condenser fan lamp indicator, air handling unit blower
lamp indicator, system failure lamp indicator, etc.
[0049] Although a particular embodiment of the invention has been
disclosed, variations thereof may occur to an artisan and the scope
of the invention should only be limited by the scope of the
appended claims.
* * * * *