CN108954899A - The multi-joint unit of wet film formula low form air-cooled heat pump - Google Patents
The multi-joint unit of wet film formula low form air-cooled heat pump Download PDFInfo
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- CN108954899A CN108954899A CN201811142823.2A CN201811142823A CN108954899A CN 108954899 A CN108954899 A CN 108954899A CN 201811142823 A CN201811142823 A CN 201811142823A CN 108954899 A CN108954899 A CN 108954899A
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- 238000001816 cooling Methods 0.000 claims abstract description 134
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 239000003507 refrigerant Substances 0.000 claims abstract description 47
- 238000003860 storage Methods 0.000 claims abstract description 37
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 14
- 238000010992 reflux Methods 0.000 claims description 12
- 239000006260 foam Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The present invention provides a kind of multi-joint unit of wet film formula low form air-cooled heat pump, the other end of the outer heat exchange unit of main check valve control room is connected to liquid storage device, and the other end of heat exchange unit circulates to liquid storage device in secondary check valve control room；Indoor heat exchange unit is multi-joint indoor unit or shell and tube exchanger；Outdoor heat exchange unit include: water cooling heat exchanger, the air cooling heat exchanger being connect with water cooling heat exchanger, the blower for causing air flow through air cooling heat exchanger, wet film heat exchanger, to the spray equipment of wet film heat exchanger spraying cooling water, the feeding spraying pump being connect with spray equipment, the cooling water tank that supplies water below wet film heat exchanger and to feeding spraying pump and the spray pipeline for being connected to spray equipment and feeding spraying pump；The water cooling heat exchanging pipe of water cooling heat exchanger is connected on spray pipeline, and the refrigerant heat exchanging pipe of water cooling heat exchanger is connected on the refrigerant pipeline of the multi-joint unit of wet film formula low form air-cooled heat pump.The multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention, realizes highly effective refrigeration and heating operation.
Description
Technical field
The present invention relates to technical field of heat pumps, and in particular to a kind of multi-joint unit of wet film formula low form air-cooled heat pump.
Background technique
Air-conditioning cooling technology can be divided into three kinds of forms at present:
1, air-cooled unit: made using the temperature difference of refrigerant steam and ambient outdoor air in condenser by finned heat exchanger
Cooling medium liquefaction achievees the purpose that reduce refrigerant temperature --- so that refrigerant is cooled down using ambient outdoor air and refrigerant steam heat exchange；
2, water chiller: make refrigerant steam liquefied in shell-tube type (bushing type) heat exchanger using the cooling water that cooling tower obtains
Achieve the purpose that reduce refrigerant temperature --- cool down using cooling water and refrigerant steam heat exchange method to refrigerant；
3, evaporate cold group: condenser, which is exposed in cooling tower, to be made by the way of shower water by the vaporization of water
Refrigerant steam liquefied achievees the purpose that cooling --- saturated vapor cooling.Evaporating the easy fouling of cold group band-tube type heat exchanger reduces
Heat exchange efficiency causes unit refrigeration efficiency to increase and plate heat exchanger seriously corroded；Also, but in the lower environment of temperature
(such as winter) cannot heat (or heating efficiency is low).
Wherein, multi-joint unit is directly exchanged heat using refrigerant without second heat as the independent machine of one of air-cooled unit
Exchange, is that a kind of more highest type is imitated in air-cooled unit.And wet film formula unit is to be combined into one water cooler with cooling tower,
Cold filler+spray mode water chiller is evaporated using being similar to.
Wherein, although evaporation it is cooling can highly effective refrigeration, the lower environment heating efficiency of temperature is not high and fouling is serious；
Although multi-connected heat pump can heat but cooling in summer efficiency is lower than evaporation cold group；Also, traditional multi-connected machine is at low ambient temperatures
Efficiency is low.Water chiller good refrigeration effect but the additional cooling tower of computer room is needed to cause computer room repeated construction wasting space, cooling tube
The long investment of net is high, and cooling water pump energy consumption is high, and cooling tower cooling water consumption is big, and winter cannot heat.
Therefore, multi-joint unit is low compared with evaporation cold group and water chiller refrigerating efficiency in summer；Winter heating's low efficiency and
Low-temperature cold area uses limited.
Therefore, how to achieve the effect that highly effective refrigeration heat, it has also become those skilled in the art's urgent problem to be solved.
Summary of the invention
In view of this, the present invention provides a kind of multi-joint units of wet film formula low form air-cooled heat pump, to reach highly effective refrigeration
The effect of heat.
A kind of multi-joint unit of wet film formula low form air-cooled heat pump, including compressor, outdoor heat exchange unit, four-way valve, interior
Heat exchange unit, liquid storage device, the first expansion valve, the first solenoid valve, second solenoid valve, main check valve, secondary check valve, the first check valve
And second one-way valve；
The compressor has refluxing opening and outflow port；The first interface A of the four-way valve and the outdoor heat exchange unit
One end connection, the second interface B of the four-way valve is connected to the refluxing opening, the third interface C of the four-way valve and described
One end of indoor heat exchange unit is connected to, and the 4th interface D of the four-way valve is connected to the outflow port；The main check valve control
The other end of the outdoor heat exchange unit is connected to the liquid storage device, and the pair check valve controls the another of the indoor heat exchange unit
It circulates to the liquid storage device one end；The liquid storage device is connect with first expansion valve, and first expansion valve passes through described the
One solenoid valve and first check valve are connected to the other end of the outdoor heat exchange unit, also, first expansion valve is logical
The second solenoid valve and the second one-way valve is crossed to be connected to the other end of the indoor heat exchange unit；
The interior heat exchange unit is multi-joint indoor unit or shell and tube exchanger；The outdoor heat exchange unit includes: water cooling
Heat exchanger, the air cooling heat exchanger connecting with the water cooling heat exchanger, the blower for causing air flow through the air cooling heat exchanger, wet film change
Hot device, to the wet film heat exchanger spraying cooling water spray equipment, connect with the spray equipment feeding spraying pump, be located at institute
It states below wet film heat exchanger and the cooling water tank and the connection spray equipment that supply water to the feeding spraying pump and the shower water
The spray pipeline of pump；
The water cooling heat exchanging pipe of the water cooling heat exchanger is connected on the spray pipeline, the refrigerant of the water cooling heat exchanger
Heat exchanging pipe is connected on the refrigerant pipeline of the multi-joint unit of the wet film formula low form air-cooled heat pump.
It preferably, further include economizer, the second expansion valve and master in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump
Solenoid valve, compressor also have EVI jet port；
The economizer has interconnected the first connector and the second connector and the connection of interconnected third
Mouth and the 4th connector；
The connection type of the liquid storage device and first expansion valve are as follows: the liquid storage device passes through the main solenoid valve and institute
The second expansion valve is stated to be connected to first connector；Second connector is connected to the EVI jet port；The third connects
Interface is connected to first expansion valve, and the outlet of the liquid storage device is connected to the 4th connector.
It preferably, further include high temperature protection pipeline in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump；
There is heating power expansion valve and additional electrical magnet valve on the high temperature protection pipeline；
Connecting line between the liquid storage device and the main solenoid valve is swollen by the additional electrical magnet valve and the heating power
Swollen valve is connected to the EVI jet port.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the water cooling heat exchanger air-cooled is changed with described
Hot device series connection.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the water cooling heat exchanger air-cooled is changed with described
Hot device is in parallel.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the air cooling heat exchanger is U fin type heat exchange
Device, the wet film heat exchanger are located in the groove of U finned heat exchanger formation.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the outdoor heat exchange unit further includes outdoor
Hood shell and water fender, the air cooling heat exchanger and the wet film heat exchanger are respectively positioned in the outdoor unit housing；
There is orifice plate on the outdoor unit housing；
Air outlet is provided on the roof of the outdoor unit housing, the blower is set at the air outlet；
The water fender is between the air cooling heat exchanger and the wet film heat exchanger.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the outdoor unit housing also has backplate, institute
The outside that air cooling heat exchanger is located at wet film heat exchanger lower part is stated, the wet film heat exchanger is provided with the shield on the outside of top
Plate, the orifice plate are correspondingly arranged with the air cooling heat exchanger, and the backplate is connect with the orifice plate；
The inside of the backplate has foam filled layer.
Preferably, in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the cooling water tank includes flaring structure
Catch basin, the header tank being connected to the bottom of the catch basin, the moisturizing pipeline being connected to the header tank or the catch basin
And the water-level detecting device for detecting water level in header tank, the water inlet of the feeding spraying pump are connected to the header tank.
It preferably, further include gas-liquid separator in the multi-joint unit of above-mentioned wet film formula low form air-cooled heat pump, the four-way valve
Second interface B be connected to the refluxing opening by the gas-liquid separator；
And/or further include device for drying and filtering, the device for drying and filtering is set to the outlet end of the liquid storage device.
It can be seen from the above technical scheme that the multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention, leads to
It crosses and water is cooled down using wet film heat exchanger, water after cooling exchanges heat to refrigerant by water cooling heat exchanger, also, makes
Water cooling heat exchanger combination air cooling heat exchanger exchanges heat to refrigerant, effectively increases refrigerating efficiency；Also, it avoids cold using evaporating
Heat exchanger also solves evaporation to prevent to evaporate cold heat exchanger because heating efficiency is low to cause winter that cannot heat the problem of
The serious problem of cold heat exchanger fouling, and improve winter heating's efficiency.And then realize highly effective refrigeration and heating operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the overall structure diagram of the first multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention；
Fig. 2 is the whole of the refrigeration mode specific embodiment of the multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention
Body flow diagram；
Fig. 3 is the whole of the heating mode specific embodiment of the multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention
Body flow diagram；
Fig. 4 is the side structure schematic view of outdoor heat exchange unit provided by the invention；
Fig. 5 is the schematic cross-sectional view of outdoor heat exchange unit provided by the invention；
Fig. 6 is the cutting structural schematic diagram in Fig. 5 along the face A-A；
Fig. 7 is another schematic cross-sectional view of outdoor heat exchange unit provided by the invention；
Fig. 8 is the cutting structural schematic diagram in Fig. 7 along the face B-B；
Fig. 9 is the cutting structural schematic diagram in Fig. 7 along the face C-C；
Figure 10 is the overlooking structure diagram of outdoor heat exchange unit provided by the invention；
Figure 11 is the overall flow schematic diagram of the multi-joint unit of second of wet film formula low form air-cooled heat pump provided by the invention；
Figure 12 is the overall flow schematic diagram of the third multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention；
Figure 13 is the overall flow schematic diagram of the multi-joint unit of the 4th kind of wet film formula low form air-cooled heat pump provided by the invention；
Figure 14 is the first attachment structure schematic diagram of water cooling heat exchanger provided by the invention and air cooling heat exchanger；
Figure 15 is second of attachment structure schematic diagram of water cooling heat exchanger provided by the invention and air cooling heat exchanger；
Figure 16 is the third attachment structure schematic diagram of water cooling heat exchanger provided by the invention and air cooling heat exchanger.
Specific embodiment
In order that those skilled in the art will better understand the technical solution of the present invention, with reference to the accompanying drawing and it is specific real
Applying mode, the present invention is described in further detail.
Referring to FIG. 1, the embodiment of the invention provides a kind of multi-joint unit of wet film formula low form air-cooled heat pump, including compression
Machine 1, outdoor heat exchange unit, four-way valve 2, indoor heat exchange unit 3, liquid storage device 5, the first expansion valve 7, the first solenoid valve 19, second
Solenoid valve 20, main check valve 16, secondary check valve 15, the first check valve 17 and second one-way valve 18；
Compressor 1 has refluxing opening and outflow port；The first interface A of four-way valve 2 is connected to one end of outdoor heat exchange unit,
The second interface B of four-way valve 2 is connected to refluxing opening, one end connection of the third interface C of four-way valve 2 and indoor heat exchange unit 3, and four
4th interface D of port valve 2 is connected to outflow port；The other end of the outer heat exchange unit of main 16 control room of check valve is connected to liquid storage device 5,
The other end of heat exchange unit 3 circulates to liquid storage device 5 in secondary 15 control room of check valve；Liquid storage device 5 is connect with the first expansion valve 7, the
One expansion valve 7 is connected to by the first solenoid valve 19 and the first check valve 17 with the other end of outdoor heat exchange unit, also, first is swollen
Swollen valve 7 is connected to by second solenoid valve 20 and second one-way valve 18 with the other end of indoor heat exchange unit 3；
Indoor heat exchange unit 3 is multi-joint indoor unit or shell and tube exchanger；Outdoor heat exchange unit include: water cooling heat exchanger 4,
The air cooling heat exchanger 12 that is connect with water cooling heat exchanger 4, the blower 13 for causing air flow through air cooling heat exchanger 12, wet film heat exchanger 11,
To 11 spraying cooling water of wet film heat exchanger spray equipment 10, connect with spray equipment 10 feeding spraying pump 9, be located at wet film exchange heat
11 lower section of device and the cooling water tank to supply water to feeding spraying pump 9 and the spray pipeline for being connected to spray equipment 10 and feeding spraying pump 9；
The water cooling heat exchanging pipe of water cooling heat exchanger 4 is connected on spray pipeline, and the refrigerant heat exchanging pipe of water cooling heat exchanger 4 connects
It is connected on the refrigerant pipeline of the multi-joint unit of wet film formula low form air-cooled heat pump.
The multi-joint unit of wet film formula low form air-cooled heat pump provided in an embodiment of the present invention, it is right by using wet film heat exchanger 11
Water is cooled down, and water after cooling exchanges heat to refrigerant by water cooling heat exchanger 4, also, water cooling heat exchanger 4 is made to combine wind
Cold heat exchanger 12 exchanges heat to refrigerant, effectively increases refrigerating efficiency；Also, it avoids using evaporation cold heat exchanger, to shut out
It is tight also to solve evaporation cold heat exchanger fouling because heating efficiency is low to cause winter that cannot heat the problem of for evaporation cold heat exchanger absolutely
The problem of weight, and improve winter heating's efficiency.And then realize highly effective refrigeration and heating operation.
It is understood that by the switching of four-way valve, can realize the first interface A of four-way valve, second interface B,
Orifice two-by-two in three interface C and the 4th interface D.
As shown in Figure 1-Figure 3, in above-described embodiment, the multi-joint unit of wet film formula low form air-cooled heat pump further includes economizer
14, the second expansion valve 8 and main solenoid valve 21, compressor 1 also have EVI jet port；Economizer 14 has first to be interconnected
Connector and the second connector and interconnected third connector and the 4th connector；Liquid storage device 5 and the first expansion valve 7
Connection type are as follows: liquid storage device 5 is connected to by main solenoid valve 21 and the second expansion valve 8 with the first connector；Second connector and EVI
Jet port connection；Third connector is connected to the first expansion valve 7, and the outlet of liquid storage device 5 is connected to the 4th connector.
Compressor 1 can be steam jet enthalpy screw compressor, can be steam jet enthalpy helical-lobe compressor；It can be non-steam jet enthalpy whirlpool
Compressor is revolved, can be non-steam jet enthalpy helical-lobe compressor.
Preferably, compressor 1 is that spray vapour increases culvert compressor.Pass through above-mentioned setting, it is ensured that the section of compressor 1 in operation
It can efficiently, and it is possible to which performance is stablized under severe cold temperatures, it is ensured that unit can be steady under the cold snap in south and the north
Fixed operation.
In this embodiment, it is preferred that compressor 1 is EVI screw compressor.It can also be made using EVI helical-lobe compressor
For compressor 1, above-mentioned effect equally may be implemented.It is, of course, also possible to no longer be tired out one by one herein using other kinds of compressor
It states and within protection scope.
Common compressor can also be used, that is, there is no EVI jet port, therefore, also do not need setting economizer 14, such as scheme
Shown in 11 and Figure 13.
In this embodiment, it is preferred that indoor heat exchange unit 3 is multi-joint indoor unit.It can also make indoor heat exchange unit 3
Shell and tube exchanger, as shown in FIG. 12 and 13, that is, the wet film multi-joint unit of formula low form air-cooled heat pump is Air-Cooled Heat Pump Unit.
As shown in Fig. 2, in cooling mode, second solenoid valve 20 and main solenoid valve 21 are opened, and the first solenoid valve 19 closes
It closes.Blower 13 starts.In this case, feeding spraying pump 9 is opened, and wet film heat exchanger 11 cools down the water in cooling water tank.
Wherein, water cooling heat exchanger 4 (refrigerant heat exchanging pipe) is connected with air cooling heat exchanger 12；Also, (the water cooling heat exchanger tube of water cooling heat exchanger 4
Road) it connects with wet film heat exchanger 11.
The first interface A of four-way valve 2 is connected to its 4th interface D, and second interface B is connected to its third interface C.That is,
The outflow port of compressor 1 is connected to after four-way valve 2 with one end of water cooling heat exchanger 4, and refrigerant is dropped by 4 water cooling of water cooling heat exchanger
Air cooling heat exchanger 12 is flowed into after temperature to be cooled down twice.Then by liquid storage device 5 and device for drying and filtering 6 and it is divided into major loop and auxiliary
Help the circuit EVI:
In major loop, refrigerant by after liquid storage device 5 and device for drying and filtering 6 by the 4th connector of economizer 14 and its
Low-temp low-pressure refrigerant liquid coolant further is reduced to by the first expansion valve 7 after cooling supercooling after third connector, and passes through the
Two solenoid valves 20 and second one-way valve 18 enter the room heat exchange unit 3, and refrigerant vaporization is passed through at after low temperature and low pressure steam by four
Port valve 2 enters the refluxing opening of compressor 1, carries out next circulation.
It assists in the circuit EVI, refrigerant passes through swollen by main solenoid valve 21 and second after liquid storage device 5 and device for drying and filtering 6
Swollen valve 8 passes through the first connector and the second connector of economizer 14 later, becomes medium temperature and medium pressure steaming after further vaporization
Vapour enters compressor 1 by the EVI jet port of compressor 1 and completes a circulation.
Wherein, the water cooling heat exchanging pipe of water cooling heat exchanger 4 is series on spray pipeline.The water outlet of feeding spraying pump 9 it is cold
But water is flowed along spray pipeline, into the water cooling heat exchanging pipe of water cooling heat exchanger 4 after refrigerant heat exchanging pipe with water cooling heat exchanger 4
In refrigerant carry out heat exchange, reduce refrigerant temperature, absorb the cooling water of heat by spray equipment 10 and be sprayed on wet film heat exchange
On wet film filler inside device 11, cooling water infiltrates through in wet film filler and carries out heat exchange with the air for flowing through wet film filler.It is wet
Film heat exchanger 11 increases effectively the contact area of cooling water and air, while making cooling water fast cooling, rises to cooling water
To filtration.
Refrigerant is cooled down with air cooling heat exchanger 12 by concatenated water cooling heat exchanger 4, effectively reduces the temperature of refrigerant
Degree, and then improve the refrigeration effect of multi-joint unit.
As shown in figure 3, second solenoid valve 20 and main solenoid valve 21 are opened, and the first solenoid valve 19 under heating kind mode
It closes.Blower 13 starts.In this case, feeding spraying pump 9 is closed, and wet film heat exchanger 11 is in close state, air cooling heat exchanger
12 isolated operations.
The first interface A of four-way valve 2 is connected to its second interface B, and third interface C is connected to its 4th interface D.That is,
The outflow port of compressor 1 is connected to after four-way valve 2 with one end of indoor heat exchange unit 3, and high temperature and pressure steam state gaseous coolant will
Heat is released to condensation liquefaction behind interior, becomes high normal pressure and temperature liquid refrigerants and flows out from indoor heat exchange unit 3, realizes indoor confession
It is warm.High-pressure liquid refrigerant enters liquid storage device 5 and device for drying and filtering 6 after passing through secondary check valve 15, and is divided into major loop and auxiliary
The circuit EVI:
In major loop, refrigerant by after liquid storage device 5 and device for drying and filtering 6 by the 4th connector of economizer 14 and its
After the supercooling cooling of third connector by the first expansion valve 7 be reduced to low-temp low-pressure refrigerant liquid coolant by the first solenoid valve 19 and
First check valve 17 enters in air cooling heat exchanger 12, makes refrigerant vaporization at low temperature after air cooling heat exchanger 12 absorbs heat
Through entering the refluxing opening of compressor 1 by four-way valve 2 after low-pressure steam, next circulation is carried out.Wherein, enter four-way valve 2 it
Before, by water cooling heat exchanger 4, since wet film heat exchanger 11 is in close state, water cooling heat exchanger 4 is also at closed state.
It assists in the circuit EVI, refrigerant passes through swollen by main solenoid valve 21 and second after liquid storage device 5 and device for drying and filtering 6
Swollen valve 8 passes through the first connector and the second connector of economizer 14 later, becomes medium temperature and medium pressure steaming after further vaporization
Vapour enters compressor 1 by the EVI jet port of compressor 1 and completes a circulation.
It is understood that one end of above-mentioned outdoor heat exchange unit and the other end of outdoor heat exchange unit are water cooling heat exchange
The connecting pin of the refrigerant heat exchanging pipe of device 4 and/or air cooling heat exchanger 12.That is, refrigerant passes through water cooling heat exchanger 4 and air cooling heat exchanger
12, it may not flow into wet film heat exchanger 11.
In the present embodiment, the multi-joint unit of wet film formula low form air-cooled heat pump further includes high temperature protection pipeline, high temperature dwell pillar
Road has heating power expansion valve 23 (i.e. capillary 13) and additional electrical magnet valve 22.Compressor 1 also has EVI jet port；Economizer
14 have interconnected the first connector and the second connector and interconnected third connector and the 4th connector；Storage
The connection type of liquid device 5 and the first expansion valve 7 are as follows: liquid storage device 5, device for drying and filtering 6 are connected to the 4th connector of economizer 14,
Liquid storage device 5 is connected to by main solenoid valve 21 and the second expansion valve 8 with the first connector of economizer 14；The second of economizer 14 connects
Interface is connected to EVI jet port；Third connector is connected to the first expansion valve 7.
When unit is under refrigeration mode (as shown in Figure 2) or heating mode (as shown in Figure 3), 1 delivery temperature of compressor is high
When setting normal exhaust temperature t0 (100 DEG C) setting value t3 (such as 105 DEG C), the first solenoid valve 19 is not opened, main solenoid valve
21 close, and additional electrical magnet valve 22 is opened, and then the vapour-liquid regurgitant volume for increasing refrigerant is acted on by heating power expansion valve 23, reduce
The delivery temperature and pressure of compressor 1.When 1 delivery temperature of machine to be compressed is lower than set temperature t1 (such as≤90 DEG C), main solenoid valve
21 open, and additional electrical magnet valve 22 is closed.The delivery temperature t0 of compressor 1 is safe working temperature；Under t1 (such as 90 DEG C) is first
Limit value；T2 (such as 85 DEG C) is second temperature lower limit value；T3 (such as 105 DEG C) is temperature upper limit.Wherein, t2≤t1≤t0≤t3,
All of above value is adjustable as needed.
Preferably, also needle-valve, high pressure gauge, high voltage protective comprising being arranged at 1 outflow port of compressor are switched, are arranged in the unit
The components such as gas temperature-sensing probe；Needle-valve set by the refluxing opening of compressor, low-pressure meter, low-voltage protective switch, air cooling fin temperature-sensing probe
And the components such as environment temperature temperature-sensing probe, but it is not limited only to this.
High temperature protection pipeline H can not also be added.
In the present embodiment, water cooling heat exchanger 4 is connected with air cooling heat exchanger 12, so that the refrigerant heat exchanger tube of water cooling heat exchanger 4
Road is series on the refrigerant pipeline of the multi-joint unit of wet film formula low form air-cooled heat pump.That is, the first interface A of four-way valve 2 passes through water
The refrigerant heat exchanging pipe of cold heat exchanger 4 is connected with air cooling heat exchanger 12.By above-mentioned setting, so that the refrigerant of outflow compressor 1
Successively by water cooling heat exchanger 4 and air cooling heat exchanger 12.It is of course also possible to first pass through air cooling heat exchanger 12, changed using water cooling
Hot device 4.
As shown in figure 15, in the first specific embodiment, air cooling heat exchanger 12 is arranged in series with water cooling heat exchanger 4, wind
One end of cold heat exchanger 12 has air-cooled solenoid valve 38b, and one end of water cooling heat exchanger 4 is connected to wind by water-cooled electromagnetic valve 39b
The side of cold solenoid valve 38b, the other end of water cooling heat exchanger 4 are connected to the other side of air-cooled solenoid valve 38b.It is set by above-mentioned
It sets, the switching of air cooling heat exchanger 12 and water cooling heat exchanger 4 equally may be implemented.
As shown in figure 16, in second of specific embodiment, air cooling heat exchanger 12 is arranged in series with water cooling heat exchanger 4, wind
One end of cold heat exchanger 12 has air-cooled solenoid valve 38c, and one end of water cooling heat exchanger 4 is connected to wind by water-cooled electromagnetic valve 39c
The side of cold solenoid valve 38c, the other end of air cooling heat exchanger 12 are connected to the other side of water-cooled electromagnetic valve 39c.It is set by above-mentioned
It sets, the switching of air cooling heat exchanger 12 and water cooling heat exchanger 4 equally may be implemented.
In another embodiment, water cooling heat exchanger 4 is in parallel with air cooling heat exchanger 12.It can make by the outflow of compressor 1
It is exchanged heat respectively by two heat exchangers to refrigerant by water cooling heat exchanger 4 and air cooling heat exchanger 12 after coolant distribution.
As shown in figure 14, in the third specific embodiment, air cooling heat exchanger 12 and water cooling heat exchanger 4 are in parallel, and
And the branch road where air cooling heat exchanger 12 is provided with air-cooled solenoid valve 38ba, the branch road where water cooling heat exchanger 4 is provided with
Water-cooled electromagnetic valve 39a.By the switching of air-cooled solenoid valve 38ba and water-cooled electromagnetic valve 39a, air cooling heat exchanger 12 and water cooling are realized
The switching of heat exchanger 4.
In order to improve structural compactness, it is ensured that heat transfer effect, air cooling heat exchanger 12 are located at 11 outside of wet film heat exchanger.
As shown in fig. 6, in the present embodiment, air cooling heat exchanger 42 is U finned heat exchanger, wet film heat exchanger 11 is located at institute
In the groove for stating the formation of U finned heat exchanger.
As shown in Fig. 4-Figure 10, further, outdoor heat exchange unit further includes outdoor unit housing and water fender 11-1, air-cooled
Heat exchanger 12 and wet film heat exchanger 11 are respectively positioned in outdoor unit housing；There is orifice plate 98 on outdoor unit housing；Outdoor unit housing
Air outlet is provided on roof 92-1, blower 13 is set at air outlet；Water fender 11-1 is located at air cooling heat exchanger 12 and wet film
Between heat exchanger 11.By above-mentioned setting, effectively ensures the independent operating of air cooling heat exchanger 12 Yu wet film heat exchanger 11, avoid
Air cooling heat exchanger 12 is directly contacted with cooling water, also effectively increases the structural compactness of outdoor heat exchange unit.
Wherein, the bottom of outdoor unit housing is understructure 95, and other assemblies can be set in other assemblies installation position 96,
Also, distribution box 97 is similarly positioned in other assemblies installation position 96, and setting is isolated with cooling water tank.
Further, outdoor unit housing also has backplate 92, and air cooling heat exchanger 12 is located at the outer of 11 lower part of wet film heat exchanger
Side is provided with backplate 92 on the outside of 11 top of wet film heat exchanger, and orifice plate 98 is correspondingly arranged with air cooling heat exchanger 12, backplate 92 and hole
Plate 98 connects；The inside of backplate 92 has foam filled layer 50.By the way that foam filled layer 50 is arranged, and then play filling isolation
Effect.Also, but also outside air can carry out heat exchange by orifice plate 98 and air cooling heat exchanger 12.
In the present embodiment, cooling water tank includes the catch basin of flaring structure, is connected to the bottom of catch basin header tank 94,
The moisturizing pipeline 93 being connected to header tank 94 or catch basin and the water-level detecting device for detecting water level in header tank 94, spray
The water inlet of water pump 9 is connected to header tank 94.By above-mentioned setting, it is convenient for make-up water source, it is ensured that the abundance of cooling water, so as to
In the stable operation for guaranteeing wet film heat exchanger 11.
Further, in this embodiment the multi-joint unit of wet film formula low form air-cooled heat pump, further include gas-liquid separator 14,
The second interface B of four-way valve 2 is connected to by gas-liquid separator 14 with refluxing opening.By the way that gas-liquid separator 14 is arranged, it is ensured that pressure
The stable operation of contracting machine 1.
It further, further include device for drying and filtering 6, liquid storage device 5 connects by the 4th of device for drying and filtering 6 and economizer 14
Interface and main solenoid valve 21 are connected to.Filtration by device for drying and filtering 6 to refrigerant effectively increases the use of compressor 1
Service life.
Preferably, the indoor heat exchange unit 3 of the multi-joint unit of wet film formula low form air-cooled heat pump is multi-joint indoor unit, is effectively mentioned
High multi-connected machine refrigerating efficiency.
And, it is understood that wet film heat exchanger 11 includes the wet film 11-2 of shell and filling inside the shell.Wet film
11-2 is generally macromolecule compounded mix (fiber, resin or PVC material etc.), less scaling and replacement cost itself is low and has
There is filtering function.In the present embodiment, wet film 11-2 is honeycomb plate structure.
The multi-joint unit of wet film formula low form air-cooled heat pump provided by the invention is described in detail above.It answers herein
With a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to help to manage
Solve method and its core concept of the invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of protection of the claims.
Claims (10)
1. a kind of multi-joint unit of wet film formula low form air-cooled heat pump, which is characterized in that including compressor (1), outdoor heat exchange unit,
Four-way valve (2), indoor heat exchange unit (3), liquid storage device (5), the first expansion valve (7), the first solenoid valve (19), second solenoid valve
(20), main check valve (16), secondary check valve (15), the first check valve (17) and second one-way valve (18)；
The compressor (1) has refluxing opening and outflow port；The first interface A and the outdoor heat exchange list of the four-way valve (2)
One end connection of member, the second interface B of the four-way valve (2) are connected to the refluxing opening, the third interface of the four-way valve (2)
One end connection of C and the indoor heat exchange unit (3), the 4th interface D of the four-way valve (2) are connected to the outflow port；Institute
The other end for stating main check valve (16) control outdoor heat exchange unit is connected to the liquid storage device (5), the pair check valve
(15) other end for controlling the indoor heat exchange unit (3) circulates to the liquid storage device (5)；The liquid storage device (5) and described the
One expansion valve (7) connection, first expansion valve (7) by first solenoid valve (19) and first check valve (17) with
The other end of the outdoor heat exchange unit is connected to, also, first expansion valve (7) passes through the second solenoid valve (20) and institute
Second one-way valve (18) is stated to be connected to the other end of the indoor heat exchange unit (3)；
The interior heat exchange unit (3) is multi-joint indoor unit or shell and tube exchanger；The outdoor heat exchange unit includes: that water cooling is changed
Hot device (4), causes air flow through the air cooling heat exchanger (12) at the air cooling heat exchanger (12) connecting with the water cooling heat exchanger (4)
Blower (13), wet film heat exchanger (11), to wet film heat exchanger (11) the spraying cooling water spray equipment (10), with it is described
The feeding spraying pump (9) of spray equipment (10) connection is located at below the wet film heat exchanger (11) and supplies to the feeding spraying pump (9)
The cooling water tank of water and the spray pipeline of the connection spray equipment (10) and the feeding spraying pump (9)；
The water cooling heat exchanging pipe of the water cooling heat exchanger (4) is connected on the spray pipeline, the water cooling heat exchanger (4) it is cold
Matchmaker's heat exchanging pipe is connected on the refrigerant pipeline of the multi-joint unit of the wet film formula low form air-cooled heat pump.
2. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that further include economizer
(14), the second expansion valve (8) and main solenoid valve (21), compressor (1) also have EVI jet port；
The economizer (14) has interconnected the first connector and the second connector and the connection of interconnected third
Mouth and the 4th connector；
The connection type of the liquid storage device (5) and first expansion valve (7) are as follows: the liquid storage device (5) passes through the main electromagnetism
Valve (21) and second expansion valve (8) are connected to first connector；Second connector and the EVI jet port connect
It is logical；The third connector is connected to first expansion valve (7), the outlet of the liquid storage device (5) and the 4th connector
Connection.
3. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 2, which is characterized in that further include high temperature dwell
Pillar road；
There is heating power expansion valve (23) and additional electrical magnet valve (22) on the high temperature protection pipeline；
Connecting line between the liquid storage device (5) and the main solenoid valve (21) passes through the additional electrical magnet valve (22) and described
Heating power expansion valve (23) is connected to the EVI jet port.
4. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that the water cooling heat exchange
Device (4) is connected with the air cooling heat exchanger (12).
5. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that the water cooling heat exchange
Device (4) is in parallel with the air cooling heat exchanger (12).
6. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that the air-cooled heat exchange
Device (12) is U finned heat exchanger, and the wet film heat exchanger (11) is located in the groove of U finned heat exchanger formation.
7. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 6, which is characterized in that the outdoor heat exchange
Unit further includes outdoor unit housing and water fender (11-1), the air cooling heat exchanger (12) and the wet film heat exchanger (11) equal position
In in the outdoor unit housing；
There are orifice plate (98) on the outdoor unit housing；
Air outlet is provided on the roof (92-1) of the outdoor unit housing, the blower (13) is set at the air outlet；
The water fender (11-1) is between the air cooling heat exchanger (12) and the wet film heat exchanger (11).
8. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 7, which is characterized in that the outdoor unit cover
Shell also has backplate (92), and the air cooling heat exchanger (12) is located at the outside of wet film heat exchanger (11) lower part, the wet film
It is provided with the backplate (92) on the outside of heat exchanger (11) top, the orifice plate (98) is corresponding with the air cooling heat exchanger (12) to be set
It sets, the backplate (92) connect with the orifice plate (98)；
The inside of the backplate (92) has foam filled layer (50).
9. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that the cooling water tank
Catch basin including flaring structure, the header tank (94) being connected to the bottom of the catch basin, with the header tank (94) or institute
State the moisturizing pipeline (93) of catch basin connection and the water-level detecting device for detecting header tank (94) interior water level, the shower water
The water inlet of pump (9) is connected to the header tank (94).
10. the multi-joint unit of wet film formula low form air-cooled heat pump according to claim 1, which is characterized in that further include gas-liquid
The second interface B of separator (14), the four-way valve (2) is connected to by the gas-liquid separator (14) with the refluxing opening；
And/or further include device for drying and filtering (6), the device for drying and filtering (6) is set to the outlet end of the liquid storage device (5).
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| CN201811142823.2A CN108954899B (en) | 2018-09-28 | 2018-09-28 | Wet film type low temperature air-cooled heat pump multi-connected unit |
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| CN110260555A (en) * | 2019-07-19 | 2019-09-20 | 四川贝园科技有限公司 | A kind of heating-cooling double-effect refrigeration air-conditioner and working method |
| CN111486622A (en) * | 2020-05-20 | 2020-08-04 | 格兰立方能源科技(江苏)有限公司 | A new type of evaporative cooler |
| CN114877711A (en) * | 2021-02-05 | 2022-08-09 | 浙江高晟光热发电技术研究院有限公司 | Wet and dry type cooler |
| CN121655145A (en) * | 2026-02-05 | 2026-03-13 | 中煤科工集团沈阳研究院有限公司 | Evaporative cooling type underground nitrogen cooling device for coal mine |
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| CN108954899B (en) | 2024-02-27 |
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