CN108224621A - The big temperature difference cold source of low temperature water supply and air-conditioning system - Google Patents
The big temperature difference cold source of low temperature water supply and air-conditioning system Download PDFInfo
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- CN108224621A CN108224621A CN201711319233.8A CN201711319233A CN108224621A CN 108224621 A CN108224621 A CN 108224621A CN 201711319233 A CN201711319233 A CN 201711319233A CN 108224621 A CN108224621 A CN 108224621A
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- heat exchanger
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000004378 air conditioning Methods 0.000 title claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims abstract description 91
- 238000001704 evaporation Methods 0.000 claims abstract description 69
- 238000009434 installation Methods 0.000 claims abstract description 67
- 230000008020 evaporation Effects 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 230000008676 import Effects 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 30
- 230000005855 radiation Effects 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009408 flooring Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 abstract description 22
- 238000010586 diagram Methods 0.000 description 11
- 210000004243 sweat Anatomy 0.000 description 11
- 239000000945 filler Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/0026—Domestic hot-water supply systems with conventional heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/54—Heating and cooling, simultaneously or alternatively
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Energy (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a kind of big temperature difference cold source of low temperature water supply and air-conditioning systems, the air inlet of indirect evaporation refrigerating cooling water installation sets surface cooler, indirect evaporation refrigerating cooling water installation is connected to the import of plate heat exchanger primary side, the outlet of plate heat exchanger primary side is connected to the inlet tube of surface cooler, the chilled water outlet pipe of evaporator is connected to user's water supply, the outlet of user's return water is connected to the import of plate exchanger secondary side, the outlet of surface cooler is connected to the condenser cooling water import of mechanical compression type cooling-water machine, the outlet of its cooling water is connected to the spray equipment of indirect evaporation refrigerating cooling water installation.The present invention is rational in infrastructure, reduces the cold water temperature of user, solves the problems, such as that indirect evaporation refrigerating cooling water installation leaving water temperature is higher, cannot meet air conditioning comfortableness requirement;Effectively reduce refrigeration unit capacity;So that the cold of cold water fully discharges, the temperature difference of indirect evaporation refrigerating cooling water installation is improved, energy saving is apparent.
Description
Technical field
The invention belongs to the air processor of field of heating ventilation air conditioning, particularly a kind of low temperature supplies water big temperature difference cold source and sky
Adjusting system.
Background technology
The performance of indirect evaporation refrigerating cooling water installation is with the outdoor air for entering indirect evaporation refrigerating cooling water installation
Wet-bulb temperature and change, in xeothermic area, sweat cooling cooling water installation is because of its green, health, energy-saving and environmental protection, economy
Deng uniqueness the advantages of, achieve good application effect.But in the higher area of some humidity, due to outdoor air water capacity compared with
Height, relative humidity is higher, and the leaving water temperature of indirect evaporation refrigerating cooling water installation is too high, and temperature drop is limited, is supplied directly as cold water
During to air-conditioning system, it is impossible to meet the Thermal comfort requirement of air conditioning terminal user.If in the usual way by indirect evaporation refrigerating
Cooling water installation and mechanical compression type refrigeration unit are combined together, indirect evaporation refrigerating cooling water installation and mechanical refrigeration cold water
Unit supplies in cold air conditioning system to be required for the fluid supply device of relatively high power, a large amount of caloic exchange media, air-conditioning system again
Energy consumption increases considerably.
There are temperature different distributions in air-conditioned room indoor temperature, during the pipeline transmission & distribution of long range, cold exists
Loss in pipeline is larger, is utilized from energy cascade, the angle of Optimized Matching, utilizes the cold water alignment processing of different temperatures
The air of different temperatures can effectively reduce the capacity of air conditioning terminal, while the temperature difference increase of cold water, cold are fully discharged, had
The energy expenditure for reducing air-conditioning system of effect.
Invention content
It supplies water big temperature difference cold source and air-conditioning system the purpose of the present invention is to provide a kind of low temperature, it is rational in infrastructure, it can be with
Indirect evaporation refrigerating with mechanical compression type refrigeration is combined, the cold water temperature of user is reduced, it is higher to solve part relative humidity
Regional indirect evaporation refrigerating cooling water installation leaving water temperature it is higher, the problem of air conditioning comfortableness requirement cannot be met;It can fill
Divide the proportioning that indirect evaporation refrigerating cooling water installation and mechanical compression type refrigeration unit are reduced using sweat cooling, effectively reduce
Indirect evaporation refrigerating cooling water installation and mechanical compression type refrigeration unit capacity;By reasonably matching air conditioner user so that cold
The cold of water fully discharges, and improves the temperature difference of sweat cooling cooling water installation, and energy saving is apparent.
The object of the present invention is achieved like this:A kind of low temperature supplies water big temperature difference cold source and air-conditioning system, in indirect evaporation
The air inlet of refrigeration cooling water installation sets surface cooler, and the basin outlet pipe of indirect evaporation refrigerating cooling water installation passes through
Water-circulating pump is connected to the import of plate heat exchanger primary side, and the outlet of plate heat exchanger primary side is connected to surface cooler
Import, the outlet of plate exchanger secondary side is connected to the evaporator of mechanical compression type cooling-water machine by Secondary water circulation pump
Chilled water import, the chilled water outlet pipe of evaporator are connected to user's water supply, and the outlet of user's return water is connected to plate-type heat-exchange
The import of device secondary side, the outlet of surface cooler are connected to the condenser cooling water import of mechanical compression type cooling-water machine, cooling
The outlet of water is connected to the spray equipment of indirect evaporation refrigerating cooling water installation.
Indirect evaporation refrigerating cooling water installation is combined by the present invention with mechanical compression type refrigeration unit, relative to using only
The air-conditioning system as low-temperature receiver of indirect evaporation sweat cooling cooling water installation, reduces the cold water temperature of user, solves portion
The regional indirect evaporation refrigerating cooling water installation leaving water temperature for dividing relative humidity higher is higher, it is impossible to meet air conditioning comfortableness requirement
The problem of;Simultaneously by rational valve regulated, optimization design water-flow chart makes full use of sweat cooling, reduces indirect steaming
Hair refrigeration cooling water installation and mechanical compression type refrigeration unit proportioning, effectively reduce indirect evaporation refrigerating cooling water installation and
Mechanical compression type refrigeration unit capacity;By reasonably matching air conditioner user so that the cold of cold water fully discharges, between improving
The temperature difference of sweat cooling cooling water installation is connect, energy saving is apparent.
Advantage:
1st, sweat cooling with mechanical compression type refrigeration is combined, relative to indirect evaporation refrigerating cooling water installation, reduces use
In the cold water temperature of air conditioner user, be more applicable for the extreme higher Meteorological Characteristics of humiture in xeothermic area or relative humidity compared with
The air-conditioning system operation in high area;
2nd, by rational valve regulated sweat cooling unit and the operational mode of mechanical compression type refrigeration unit, system is reduced
Transmission & distribution energy consumption, operation energy consumption reduce;
3rd, passing through reasonable disposition air conditioner user form, cold classified utilization, Optimized Matching so that the cold of cold water fully discharges,
The big temperature difference operation of air conditioner user, reduces the cold waste during long range transmission & distribution, and system off heat passes through indirect evaporation refrigerating
Cooling water installation realizes that energy saving is apparent.
The present invention is rational in infrastructure, by the way that indirect evaporation refrigerating is combined with mechanical compression type refrigeration, reduces user's
Cold water temperature, solve the higher regional indirect evaporation refrigerating cooling water installation leaving water temperature of part relative humidity it is higher, cannot
The problem of meeting air conditioning comfortableness requirement;Sweat cooling is taken full advantage of, reduces indirect evaporation refrigerating cooling water installation and machine
The proportioning of tool compression-type refrigeration unit, effectively reduces indirect evaporation refrigerating cooling water installation and mechanical compression type refrigeration unit is held
Amount;By reasonably matching air conditioner user so that the cold of cold water fully discharges, and improves indirect evaporation refrigerating cooling water installation
The temperature difference, energy saving is apparent.
Description of the drawings
Below in conjunction with attached drawing, the present invention will be further described, Fig. 1 be 1 structure diagram of the embodiment of the present invention, Fig. 2
For 2 structure diagram of the embodiment of the present invention, Fig. 3 is 3 structure diagram of the embodiment of the present invention, and Fig. 4 is 4 structure of the embodiment of the present invention
Schematic diagram, Fig. 5 are 5 structure diagram of the embodiment of the present invention, and Fig. 6 is 6 structure diagram of the embodiment of the present invention, and Fig. 7 is the present invention
7 structure diagram of embodiment, Fig. 8 are 8 structure diagram of the embodiment of the present invention, and Fig. 9 is 9 structure diagram of the embodiment of the present invention,
Figure 10 is 10 structure diagram of the embodiment of the present invention, and Figure 11 is 11 structure diagram of the embodiment of the present invention.
Specific embodiment
A kind of low temperature supplies water big temperature difference cold source and air-conditioning system, as shown in Figure 1, in indirect evaporation refrigerating cooling water installation 1
Air inlet surface cooler 2 is set, the basin outlet pipe of indirect evaporation refrigerating cooling water installation 1 passes through a water-circulating pump 3
The import of 4 primary side of plate heat exchanger is connected to, the outlet of 4 primary side of plate heat exchanger is connected to the import of surface cooler 2, plate
The outlet of 4 secondary side of formula heat exchanger is freezed by the evaporator 7 that Secondary water circulation pump 5 is connected to mechanical compression type cooling-water machine 6
Water inlet, the chilled water outlet pipe of evaporator 7 are connected to user's water supply, and the outlet of user's return water is connected to plate heat exchanger 4
The import of secondary side, the outlet of surface cooler 2 are connected to 9 cooling water inlet of condenser of mechanical compression type cooling-water machine, cooling
The outlet of water is connected to the spray equipment of indirect evaporation refrigerating cooling water installation 1.Indirect evaporation refrigerating cooling water installation 1 is produced
Cold water passes through plate heat exchanger primary side by a water-circulating pump 3, and the water outlet of primary side supplies cold water by indirect evaporation refrigerating
Fresh air is pre-chilled in the surface cooler 2 of device 1, and machine is taken away for the condenser 9 of mechanical compression type cooling-water machine 6 by the cold water of surface cooler 2
The condensation heat of tool compression cooling-water machine 6 returns to the filler top spraying cooling of indirect-evaporation cooling water installations, plate after temperature raising
The leaving water temperature of 4 secondary side of formula heat exchanger is higher, it is impossible to meet user's refrigeration, by steaming under the action of Secondary water circulation pump 5
It sends out device 7 further to cool down, the cold water user refrigeration of low temperature, the raised cold water of temperature returns to 4 secondary side of plate heat exchanger, passes through plate
The Hydro pre-cooling that 4 primary side indirect evaporation refrigerating cooling water installation 1 of formula heat exchanger is produced, Posterior circle utilize.
As shown in Fig. 2, setting exhaust pipe 10 on surface cooler 2, air bleeding valve 11 is installed on exhaust pipe 10.It steams indirectly
Exhaust pipe 10 is provided on the surface cooler 2 of hair refrigeration cooling water installation 1, air bleeding valve 11 is provided on exhaust pipe 10, passes through exhaust
Pipe 10 empties the gas in surface cooler 2, and in addition this exhaust pipe 10 also acts as the stable plate heat exchanger primary side circulatory system
The effect of pressure.
As shown in figure 3, bypass pipe and the first valve 12 are set gradually on 4 secondary side inlet tube of plate heat exchanger, it should
The outlet or/and going out in surface cooler 2 that bypass pipe is connected to 4 secondary side of plate heat exchanger by the second valve 13 of setting
Bypass pipe and the 4th valve 15 are set gradually on mouth pipe, which is connected to mechanical compression type cold water by third valve 14
9 cooling water outlet pipe of condenser of machine 6.Increase the first valve 12, the second valve 13, third valve 14, the 4th valve 15, run
Pattern one:When the cold water temperature that indirect evaporation refrigerating cooling water installation 1 is produced is relatively low, only runs indirect evaporation refrigerating and supply cold water
Device 1 freezes, and the first valve 12, third valve 14 are opened at this time, and the second valve 13, the 4th valve 15 are closed, mechanical compression type
Cooling-water machine 6 is closed, and indirect evaporation refrigerating cooling water installation 1 produces cold water, in the use of 4 primary side of plate heat exchanger cooling secondary side
Fresh air is pre-chilled by surface cooler 2 in family cold water, the primary side return water of plate heat exchanger 4, and third valve 14 is passed through in the water outlet of surface cooler 2
Return to filler top spraying cooling;The raised cold water of temperature returns to plate heat exchanger 4 by the first valve 12 after user exchanges heat
Secondary side passes through evaporator after temperature reduction by secondary side water outlet(It is not involved in exchanging heat)Freeze for user;Operational mode
Two:When the cold water temperature that indirect evaporation refrigerating cooling water installation 1 is produced is higher, third valve 14 is closed, and the 4th valve 15 is opened
It opens, the first valve 12 is closed, and the second valve 13 is opened, and the cold water that indirect evaporation refrigerating cooling water installation 1 is produced is as cooling water
For condenser 9, evaporator produces cold water and freezes for user;Operational mode three:4th valve 15 is opened, and third valve 14 closes
It closes, the first valve 12 is opened, and the second valve 13 is closed, and realizes indirect evaporation refrigerating cooling water installation 1 and mechanical compression type is cold
The joint refrigeration of water dispenser 6, the cold water that indirect evaporation refrigerating cooling water installation 1 is produced first for 4 primary side of plate heat exchanger to
Family return water is pre-chilled, and fresh air is pre-chilled for surface cooler 2 after temperature raising, mechanical compression type cold water is taken away using condenser 9
Filler top spraying cooling is returned to after the condensation heat of machine 6, the water outlet of user is first in 4 secondary side of plate heat exchanger by primary side cold water
Precooling, further cools down by pervaporation device, and temperature is freezed after reducing for user, sets third valve 14 and the 4th valve 15
Another effect be when mechanical compression type cooling-water machine 6 is because of failure shutdown maintenance, close the 4th valve 15, open third valve
14, the circular flow of indirect evaporation refrigerating cooling water installation 1 is realized, meets the refrigerating operaton of user's portion of time.
As shown in figure 4, in the pipeline of 5 connection mechanical compression type water chiller evaporator of Secondary water circulation pump, 7 chilled water import
On set gradually bypass pipe and the 5th valve 16, which is connected to 7 chilled water of evaporator by the 6th valve 17 of setting
Outlet.Increase the 5th valve 16 and the 6th valve 17, operational mode one:It is produced when indirect evaporation refrigerating cooling water installation 1
When cold water temperature is relatively low, only runs indirect evaporation refrigerating cooling water installation 1 and freeze, the first valve 12, third valve 14 are opened at this time
It opens, the 4th valve 15 of the second valve 13 is closed, and the 5th valve 16 is closed, and the 6th valve 17 is opened, and mechanical compression type cooling-water machine 6 closes
It closes, indirect evaporation refrigerating cooling water installation 1 produces cold water, in user's cold water of 4 primary side of plate heat exchanger cooling secondary side, plate
Fresh air is pre-chilled by surface cooler 2 in the primary side return water of formula heat exchanger 4, and the water outlet of surface cooler 2 returns to filler by third valve 14
Top spraying cooling, and without condenser 9;The raised cold water of temperature is returned to board-like by the first valve 12 after user exchanges heat
4 secondary side of heat exchanger, temperature are freezed after reducing by the 6th valve 17 for user, and without evaporator;Compared to implementation
Operational mode one in example 3, the water circulation system resistance of 4 secondary side of plate heat exchanger reduce, the energy consumption drop of Secondary water circulation pump 5
It is low;Operational mode two:When the cold water temperature that indirect evaporation refrigerating cooling water installation 1 is produced is higher, third valve 14 is closed, the
Four valves 15 are opened, and the first valve 12 is closed, and the second valve 13 is opened, and the 5th valve 16 is opened, and the 6th valve 17 is closed, indirectly
For the cold water that sweat cooling cooling water installation 1 is produced as cooling water for condenser 9, evaporator produces cold water for user's system
It is cold;Operational mode three:4th valve 15 and third valve 14 are opened, and the first valve 12 is opened, and the second valve 13 is closed, the 5th valve
16 and the 6th valve 17 of door is opened, and realizes indirect evaporation refrigerating cooling water installation 1 and the joint system of mechanical compression type cooling-water machine 6
Cold, the cold water temperature that indirect evaporation refrigerating cooling water installation 1 is produced at this time is relatively low, but is not met by user's refrigeration, at this time table
The part water outlet of cooler 2 is by condenser 9, and part water outlet is without condenser 9;Two be pre-chilled by plate heat exchanger 4
Secondary side cold water is also that a part is further cooled down by evaporator, and a part is without evaporator, after this two parts cold water mix
Freeze for user, relative to embodiment 3 in operational mode three, the proportioning of mechanical compression type cooling-water machine 6 reduces, makes full use of
Sweat cooling reduces system energy consumption;Another effect for setting third valve 14 and the 4th valve 15 is to work as mechanical compression type
When cooling-water machine 6 is because of failure shutdown maintenance, the 4th valve 15 is closed, third valve 14 is opened, realizes indirect evaporation refrigerating cooling
The circular flow of water installations 1 meets the refrigerating operaton of user's portion of time.
As shown in figure 5, self-loopa surface cooler 18 is set on the air outlet of indirect-evaporation cooling water installations surface cooler 2,
1 basin outlet pipe of indirect-evaporation cooling water installations after a water-circulating pump 3 is by setting symmetrical bypass pipe to distinguish
The import of self-loopa surface cooler 18 is connected to, the outlet of self-loopa surface cooler 18 is connected to indirect-evaporation cooling water installations 1
Spray equipment.In the surface cooler air outlet setting self-loopa surface cooler 18 of indirect evaporation refrigerating cooling water installation 1, the water outlet of water tank
A part by two-stage surface cooler to pre-cooling of fresh air, realizes high temperature to high temperature by 18 precooled air of self-loopa surface cooler, low
Temperature is lower by the air themperature of filler to the heat exchange mode of low temperature, and the cold water temperature that indirect evaporation refrigerating is produced for cold water is more
It is low.
As shown in fig. 6, indirect evaporating-cooling section is set on the air outlet of indirect-evaporation cooling water installations surface cooler 2
19 or indirect evaporating-cooling section 19 is set on the air inlet of indirect-evaporation cooling water installations surface cooler 2.In indirect evaporation
2 air outlet of the surface cooler setting indirect evaporating-cooling section for cooling water installation 1 of freezing, it is cold that indirect evaporating-cooling section includes indirect evaporation
But device, such as tube type indirect evaporative cooler, plate type indirect evaporation cooler pass through surface cooler 2 and indirect evaporating-cooling section
Two-stage is pre-chilled, and the inlet air temperature of filler is lower, and the cold water temperature that indirect-evaporation cooling water installations are produced is lower.
As shown in fig. 7, the chilled water outlet of evaporator is connected to the inlet tube of user 8, the outlet of user 8 is connected to plate
The secondary side-entrance of formula heat exchanger 4.
As shown in figure 8, user's feed pipe is connected to heat source 28 and pipeline, Winter heat supply is realized.By valve regulated, realize
During summer the refrigeration of user and during winter user heat supply.
As shown in figure 9, user 8 is flooring radiation end 20 or fan coil end 21 or the either floor of Fresh air handling units 22
Radiation tail end 20, fan coil end 21 and 22 connection in series-parallel of Fresh air handling units combination.User 8 is radiation tail end 20 or fan coil end
End 21 or the connection in series-parallel combining form of the either a variety of air processors of Fresh air handling units 22 realize the cold classification profit of user
With Optimized Matching.
As shown in Figure 10, user 8 handles 22 tandem compound of unit 23 and Fresh air handing unit for return air.Large space is built
The all-air air conditioning system built, user 8 handle the cascade of unit 23 and Fresh air handing unit 22, this user's shape for return air
Air output is big in formula room, and comfort is preferable.
As shown in figure 11, user 8 is air-treatment unit, the structure of air-treatment unit be with fresh inlet 24,
In the cabinet of indoor return air import 25 and air outlet, surface-type heat exchanger 26 and pressure fan 27, mechanical compression type are set gradually
7 chilled water outlet pipe of water chiller evaporator is connected to the import of surface-type heat exchanger 26, and the outlet of surface-type heat exchanger 26 connects
Then the import of 4 secondary side of plate heat exchanger.For the all-air air conditioning system of volumed space building, user 8 is air processing machine
Group, air-treatment unit introduce outdoor fresh air and indoor return air, and 26 mixing airs are handled by one group of surface-type heat exchanger, this
User's form structure is simple, and air output is big.
Claims (11)
- Big temperature difference cold source and air-conditioning system 1. a kind of low temperature supplies water, it is characterized in that:In indirect evaporation refrigerating cooling water installation (1) Air inlet sets surface cooler (2), and the basin outlet pipe of indirect evaporation refrigerating cooling water installation (1) is recycled by a water Pump (3) is connected to the import of plate heat exchanger (4) primary side, and the outlet of plate heat exchanger (4) primary side is connected to surface cooler (2) import, the outlet of plate heat exchanger (4) secondary side pump (5) by Secondary water circulation and are connected to mechanical compression type cold water Evaporator (7) chilled water import of machine (6), the chilled water outlet pipe of evaporator (7) are connected to user's water supply, and user's return water goes out Mouth pipe is connected to the import of plate heat exchanger (4) secondary side, and the outlet of surface cooler (2) is connected to mechanical compression type cooling-water machine Condenser (9) cooling water inlet, the outlet of cooling water are connected to the spray dress of indirect evaporation refrigerating cooling water installation (1) It puts.
- Big temperature difference cold source and air-conditioning system 2. low temperature according to claim 1 supplies water, it is characterized in that:On surface cooler (2) Exhaust pipe (10) is set, air bleeding valve (11) is installed on exhaust pipe (10).
- Big temperature difference cold source and air-conditioning system 3. low temperature according to claim 1 supplies water, it is characterized in that:In plate heat exchanger (4) bypass pipe and the first valve (12), the second valve which passes through setting are set gradually on secondary side inlet tube (13) it is connected to the outlet of plate heat exchanger (4) secondary side or/and is set gradually on the outlet of surface cooler (2) other Siphunculus and the 4th valve (15), the bypass pipe are connected to the condenser of mechanical compression type cooling-water machine (6) by third valve (14) (9) cooling water outlet pipe.
- Big temperature difference cold source and air-conditioning system 4. low temperature according to claim 3 supplies water, it is characterized in that:It is pumped in Secondary water circulation (5) bypass pipe and the 5th valve are set gradually on the pipeline of connection mechanical compression type water chiller evaporator (7) chilled water import (16), which is connected to evaporator (7) chilled water outlet pipe by the 6th valve (17) of setting.
- Big temperature difference cold source and air-conditioning system 5. the low temperature according to claims 1 or 2 or 3 or 4 supplies water, it is characterized in that: It connects and self-loopa surface cooler (18) is set on the air outlet of evaporation cooling water installation surface cooler (2), positioned at a water-circulating pump (3) Indirect-evaporation cooling water installations (1) basin outlet pipe afterwards is cold by the way that symmetrical bypass pipe is set to respectively connected self-loopa table The import of device (18), the outlet of self-loopa surface cooler (18) are connected to the spray equipment of indirect-evaporation cooling water installations (1).
- Big temperature difference cold source and air-conditioning system 6. the low temperature according to claims 1 or 2 or 3 or 4 supplies water, it is characterized in that: It connects and indirect evaporating-cooling section (19) on the air outlet of evaporation cooling water installation surface cooler (2) is set or is supplied in indirect evaporation Indirect evaporating-cooling section (19) is set on the air inlet of water-cooling device surface cooler (2).
- Big temperature difference cold source and air-conditioning system 7. low temperature according to claim 1 supplies water, it is characterized in that:The chilled water of evaporator Outlet is connected to the inlet tube of user (8), and the outlet of user (8) is connected to the secondary side-entrance of plate heat exchanger.
- Big temperature difference cold source and air-conditioning system 8. the low temperature according to claims 1 or 2 or 3 or 4 supplies water, it is characterized in that:User Heat source (28) and pipeline are connected on feed pipe, realizes Winter heat supply.
- Big temperature difference cold source and air-conditioning system 9. low temperature according to claim 1 supplies water, it is characterized in that:User (8) is floor Radiation tail end (20) or fan coil end (21) or Fresh air handling units (22) or flooring radiation end (20), fan coil end Hold (21) and Fresh air handling units (22) connection in series-parallel combination.
- Big temperature difference cold source and air-conditioning system 10. low temperature according to claim 1 supplies water, it is characterized in that:User (8) is return air Handle unit (23) and Fresh air handing unit (22) tandem compound.
- Big temperature difference cold source and air-conditioning system 11. low temperature according to claim 1 supplies water, it is characterized in that:User (8) is air Unit is handled, the structure of air-treatment unit is in the machine with fresh inlet (24), indoor return air import (25) and air outlet In case, surface-type heat exchanger (26) and pressure fan (27) are set gradually, mechanical compression type water chiller evaporator (7) chilled water goes out Mouth pipe is connected to the import of surface-type heat exchanger (26), and the outlet of surface-type heat exchanger (26) is connected to plate heat exchanger (4) The import of secondary side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711319233.8A CN108224621A (en) | 2017-12-12 | 2017-12-12 | The big temperature difference cold source of low temperature water supply and air-conditioning system |
Applications Claiming Priority (1)
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CN201711319233.8A CN108224621A (en) | 2017-12-12 | 2017-12-12 | The big temperature difference cold source of low temperature water supply and air-conditioning system |
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CN108224621A true CN108224621A (en) | 2018-06-29 |
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