CN108931071A - A kind of wet film formula low form Air-Cooled Heat Pump Unit - Google Patents
A kind of wet film formula low form Air-Cooled Heat Pump Unit Download PDFInfo
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- CN108931071A CN108931071A CN201811142417.6A CN201811142417A CN108931071A CN 108931071 A CN108931071 A CN 108931071A CN 201811142417 A CN201811142417 A CN 201811142417A CN 108931071 A CN108931071 A CN 108931071A
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- air
- heat exchanger
- wet film
- cooling water
- shell
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- 238000001816 cooling Methods 0.000 claims abstract description 70
- 239000000498 cooling water Substances 0.000 claims abstract description 66
- 239000003507 refrigerant Substances 0.000 claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 19
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 238000010977 unit operation Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 16
- 230000008020 evaporation Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 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
- 230000001737 promoting effect Effects 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
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 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
- F25B41/30—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
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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 discloses a kind of wet film formula low form Air-Cooled Heat Pump Unit, including air cooling heat exchanger, wet film heat exchanger, shell and tube condenser, to shell and tube condenser pumping cooling water cooling water pump, to the spray pipeline section of wet film heat exchanger spraying cooling water, sprays pipeline section and be connected with shell and tube condenser.Under refrigeration mode, start cooling water pump, cooling water is passed through in shell and tube condenser and mutually exchanges heat with unit refrigerant, it is sprayed later in the surface of wet film heat exchanger, and gradually infiltrate through wet film and flow through the air heat-exchange of wet film, it is passed through in shell and tube condenser again later, so on circulate.On the one hand wet film heat exchanger can increase the contact area of cooling water and air, play the role of fast cooling cooling water, on the other hand the effect of filtering cooling water is also acted as, since the cooling water being passed through in shell and tube condenser have passed through cooling and filtering, so the scale problems of shell and tube condenser can be alleviated, reduces unit operation expense, improves unit operation stability.
Description
Technical field
The present invention relates to technical field of heat pumps, and in particular to a kind of wet film formula low form Air-Cooled Heat Pump Unit.
Background technique
Currently, air-conditioner set is divided into according to the difference of the type of cooling: water chiller, air-cooled unit and evaporation cold group.
Wherein, water chiller is exchanged heat using cooling water and refrigerant, and cooling water and refrigerant are in the internal flow of heat exchanger.
Water chiller, which only freezes, not to be heated.
Wherein, air-cooled unit is exchanged heat using air and refrigerant.Air-cooled unit can be with cooling and warming.
Wherein, evaporation cold group exchanges heat also with cooling water and refrigerant, unlike water-cooling pattern, evaporates cold mode
It is the surface that cooling water is directly sprayed in evaporation cold heat exchanger, takes away heat using the latent heat of vaporization of water.Evaporating cold group can
With refrigeration and limited heating.
In cooling mode, identical cooling capacity is obtained, the energy consumption of evaporation cold group is minimum.Normally, it obtains identical
Cooling capacity, evaporation cold group compare 30% or more air-cooled unit energy conservation, compare 15% or more water chiller energy conservation.
But the evaporation cold heat exchanger for evaporating cold group is easier to fouling, causes to need to add into cooling water in use process
Add chemical scale-inhibitor, this not only results in the increase of cost, can also accelerate the corrosion leakage for evaporating cold heat exchanger surface, influence machine
Group operation stability.
Moreover, evaporation cold group is in a heating mode, it is " cold to be discharged in saturated steam in cooling water absorption air
For solidifying heat " as heat source, heat exchange efficiency is very low, and causing evaporation cold group, energy consumption is higher in a heating mode.Moreover, working as environment
When temperature is lower than 0 DEG C, cool water shower to evaporation cold heat exchanger surface will be frozen, to can not generate just with cooling medium
Normal heat exchange causes evaporation cold group that can not heat in area of the environment temperature lower than 0 DEG C.
In consideration of it, air-cooled unit is in terms of heating by environment temperature currently, heat pump unit is usually air-cooled unit in industry
Influence is smaller, but energy consumption for cooling is big.
From above-mentioned analysis it is found that currently, air-cooled unit, water chiller in industry and evaporation cold group respectively have its drawback,
In view of this, how to develop a kind of heat pump unit, makes it that can either evade above-mentioned part or all of drawback, be those skilled in the art
Member's technical issues that need to address.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of wet film formula low form Air-Cooled Heat Pump Unit, including low-temp. spraying
Gas enthalpy-increasing compressor, three-position four-way valve, the first heat exchanging part, the second heat exchanging part, the first check valve, liquid storage device, device for drying and filtering,
One expansion valve, second one-way valve, third check valve, the 4th check valve, gas-liquid separator, third solenoid valve, the second expansion valve, warp
Help device;
First heat exchanging part includes indoor heat exchanger;Second heat exchanging part includes air cooling heat exchanger and makes air stream
Blower through the air cooling heat exchanger surface further includes shell and tube condenser and pumps cooling water to the shell and tube condenser
Cooling water pump, further include cooling water tank, the wet film heat exchanger above the cooling water tank and to the wet film exchange heat
The spray pipeline section of device spraying cooling water, the spray pipeline section are connected with the shell and tube condenser;
The low-temperature air injection enthalpy increasing compressor is provided with the first refrigerant return mouth, the second refrigerant return mouth and refrigerant and goes out to flow
Mouthful;The economizer is provided with interconnected A mouth and B mouthful and interconnected C mouth and D mouthfuls;
The refrigerant outflow port passes through the three-position four-way valve and the air cooling heat exchanger and the shell and tube condenser
It is connected;The shell and tube condenser is connected with the air cooling heat exchanger;The air cooling heat exchanger by first check valve with
The liquid storage device is connected;The liquid storage device is connected with the device for drying and filtering;The device for drying and filtering is connected with described D mouthfuls, also
It is connected by the third solenoid valve and second expansion valve with described A mouthfuls;Described B mouthfuls and the second refrigerant return mouth
It is connected;Described C mouthfuls is connected by first expansion valve and the third check valve with the air cooling heat exchanger, and institute is also passed through
It states the first expansion valve and the second one-way valve is connected with the indoor heat exchanger;The indoor heat exchanger passes through described
4th check valve is connected with the liquid storage device, is also connected by the three-position four-way valve with the gas-liquid separator;The gas-liquid
Separator is connected with the first refrigerant return mouth.
When unit is in refrigeration mode, start blower and cooling water pump.Cooling water is passed through in shell and tube condenser and shell
Unit refrigerant in trumpet cooler mutually exchanges heat, after spray through spray tube section and seep in the surface of wet film heat exchanger, and gradually
It penetrates wet film and flows through the air heat-exchange of wet film.On the one hand wet film heat exchanger can increase the contact area of cooling water and air,
Play the role of fast cooling cooling water, on the other hand also acts as filtering cooling water.Through wet film heat exchanger cold filtration
Cooling water afterwards is passed through in shell and tube condenser again, so on circulate.Due to the cooling water being passed through in shell and tube condenser
It has passed through cooling and filtering, cause unit operation expense height, operation steady so fouling in shell and tube condenser can be alleviated
The problem of qualitative difference makes unit have lower operation expense and preferable operation stability.
Also, unit refrigerant flows into air cooling heat exchanger and air after mutually exchanging heat in shell and tube condenser with cooling water again
Mutually heat exchange cooling.As it can be seen that the heat pump unit is in cooling mode, keep air-cooled and water cooling parallel, thus compared to the prior art
Merely using air-cooled air-cooled unit, simple water chiller using water cooling and simple using evaporating cold evaporation cold group
With bigger condensation area and higher refrigerating efficiency.
When unit is in heating mode, start blower, close cooling water pump, unit refrigerant flow only through air cooling heat exchanger with
Air mutually exchanges heat heating.As it can be seen that the heat pump unit is in a heating mode, only run air-cooled, freezes because cooling water may be not present
And the problem of can not heating.The unit still is able to efficiently heat in the environment of down to -25 DEG C.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, second heat exchanging part further include the first solenoid valve and the
Two solenoid valves, the refrigerant outflow port pass through the three-position four-way valve, first solenoid valve and the shell and tube condenser phase
Even, the refrigerant outflow port is connected by the three-position four-way valve, the second solenoid valve with the air cooling heat exchanger.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, the air cooling heat exchanger are finned heat exchanger.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, the wet film formula low form Air-Cooled Heat Pump Unit further include
Two partitions and bottom plate of outdoor unit housing and position in the inner, two partitions, the bottom plate and the outdoor unit housing roof,
Antetheca and rear wall enclose the first accommodating chamber jointly;The air cooling heat exchanger and the wet film heat exchanger, which are respectively positioned on described first, to be held
Receive intracavitary, and the air cooling heat exchanger is located at the top of the wet film heat exchanger;The top of the antetheca and the rear wall is all provided with
It is equipped with air inlet, the lower part of two partitions is provided with air outlet.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, the spray pipeline section are also disposed at first accommodating chamber
It is interior, and it is between the air cooling heat exchanger and the wet film heat exchanger;The wet film formula low form Air-Cooled Heat Pump Unit is also
Including air filter, the air filter is also provided in the first receiving cavity, and it is located at the air cooling heat exchanger
Between the spray pipeline section.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, the outdoor unit housing include frame and are arranged described
Backplate and flase floor on frame, also, the air inlet is formed by the flase floor.
Wet film formula low form Air-Cooled Heat Pump Unit as described above, the right side in the left side of a partition and another partition
Side is provided with air duct;Two air ducts are connected to by the air outlet of respective side with first accommodating chamber;Two wind
The outlet in road is both formed in the roof of the outdoor unit housing, and the outlet port in two air ducts is provided with the blower.
Wet film formula low form Air-Cooled Heat Pump Unit as described above is provided with for collecting in air in two air ducts
Moisture water collection device, the water that the water collection device is collected falls after rise to the cooling water tank.
Detailed description of the invention
Fig. 1 is that the overall flow of first specific embodiment of wet film formula low form Air-Cooled Heat Pump Unit provided by the invention is illustrated
Figure;
Fig. 2 is the workflow schematic diagram of the first specific embodiment in cooling mode;
Fig. 3 is the workflow schematic diagram of the first specific embodiment in a heating mode;
Fig. 4 is that the overall flow of second specific embodiment of wet film formula low form Air-Cooled Heat Pump Unit provided by the invention is illustrated
Figure;
Fig. 5 is wet film formula low form Air-Cooled Heat Pump Unit provided by the invention, the partial sectional view under main view visual angle;
Fig. 6 is wet film formula low form Air-Cooled Heat Pump Unit provided by the invention, the full sectional view under main view visual angle;
Fig. 7 be wet film formula low form Air-Cooled Heat Pump Unit provided by the invention, along Fig. 5 A-A to cross-sectional view
Fig. 8 is the top view of wet film formula low form Air-Cooled Heat Pump Unit provided by the invention.
The reference numerals are as follows into Fig. 8 by Fig. 1:
1 low-temperature air injection enthalpy increasing compressor, E the first refrigerant return mouth, F the second refrigerant return mouth, G refrigerant outflow port, 2 three
Four-way valve, 3 first heat exchanging part, 31 fan coils, 32/32 ' indoor heat exchanger, 4 second heat exchanging part, 41 air cooling heat exchangers, 42
Shell and tube condenser, 43 blowers, 44 cooling water tanks, 45 cooling water pumps, 46 spray pipeline sections, 47 wet film heat exchangers, 48 first electromagnetism
Valve, 49 second solenoid valves, 5 first check valves, 6 liquid storage devices, 7 devices for drying and filtering, 8 first expansion valves, 9 second one-way valves, 10
Three check valves, 11 the 4th check valves, 12 gas-liquid separators, 13 third solenoid valves, 14 second expansion valves, 15 economizers, outside Room 16
Hood shell, 161 frames, 162 backplates, 163 flase floors, 17 partitions, 171 air outlets, 18 bottom plates, the first accommodating chamber of a, the air duct b, 19
Air filter, 20 water collection devices.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and have
Body embodiment is described in further detail technical solution of the present invention.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is wet film formula low form Air-Cooled Heat Pump Unit first provided by the invention specific implementation
The overall flow schematic diagram of example;Fig. 2 is the workflow schematic diagram of the first specific embodiment in cooling mode;Fig. 3 is first
The workflow schematic diagram of specific embodiment in a heating mode;Fig. 4 is wet film formula low form air-cooled heat pump provided by the invention
The overall flow schematic diagram of the second specific embodiment of unit.
As shown, the wet film formula low form Air-Cooled Heat Pump Unit includes the second heat exchanging part 4.
Second heat exchanging part 4 includes air cooling heat exchanger 41 and the blower 43 for causing air flow through 41 surface of air cooling heat exchanger, unit
Refrigerant is flowed into air cooling heat exchanger 41 and is mutually exchanged heat with the air for flowing through air cooling heat exchanger 41.
Second heat exchanging part 4 further includes cooling water tank 44, and wet film heat exchanger 47 above cooling water tank 44 is changed to wet film
The spray pipeline section 46 of hot 47 surface spraying cooling water of device, ball-cock assembly and overflow port etc..Specifically, wet film heat exchanger 47 includes outer
Frame and the wet film being filled in outer framework, wet film is macromolecule compounded mix (fiber, resin or PVC material etc.), itself is not
Easy fouling and replacement cost is low and have filtering function.Cool water shower infiltrates through on the surface of wet film heat exchanger 47, and gradually
Wet film and the air heat-exchange for flowing through wet film.47 one side of wet film heat exchanger can increase the contact area of cooling water and air, rise
To the effect for making cooling water fast cooling, the effect of filtering cooling water is on the other hand also acted as.
Second heat exchanging part 4 further includes the shell and tube condenser 42 interconnected with spray pipeline section 46 and condenses to shell-tube type
The cooling water pump 45 of pumping cooling water in device 42.Cooling water is passed through in shell and tube condenser 42 and the machine in shell and tube condenser 42
Group refrigerant mutually exchanges heat.Since the cooling water being passed through in shell and tube condenser 42 have passed through cooling and filtering, so can alleviate
Fouling causes the problem of unit operation expense height, operation stability difference in shell and tube condenser 42.
As shown, the wet film formula low form Air-Cooled Heat Pump Unit is other than including above-mentioned second heat exchanging part 4, it further include low
Warm air injection enthalpy-increasing compressor 1, three-position four-way valve 2, the first heat exchanging part 3/3 ', the first check valve 5, liquid storage device 6, device for drying and filtering 7,
First expansion valve 8, second one-way valve 9, third check valve 10, the 4th check valve 11, gas-liquid separator 12, third solenoid valve 13,
The components such as the second expansion valve 14, economizer 15.
Wherein, as shown in Figure 1, the first heat exchanging part 3 includes fan coil 31, indoor heat exchanger 32 and water circulating pump 33,
Fan coil 31 is connected with blower heat exchanger 32 by water circulating pump 33.Unit refrigerant enters the room side heat exchanger 32 and flows through room
The recirculated water of inside heat exchanger 32 mutually exchanges heat, and recirculated water flows into fan coil 31 from indoor heat exchanger 32 later, and with
The air for flowing through fan coil 31 mutually exchanges heat, and recirculated water is back in indoor heat exchanger 32 later, so on circulate.Or
Person, as shown in figure 4, the first heat exchanging part 3 ' includes multiple indoor heat exchangers 32 ' and causes air flow through indoor heat exchanger 32 '
Indoor blower, at this point, the Air-Cooled Heat Pump Unit is multi-joint unit.Refrigerant enters the room side heat exchanger 32 ' and flows through indoor
The mutual heat exchanger of the air of heat exchanger 32 '.
Wherein, low-temperature air injection enthalpy increasing compressor 1 is provided with the first refrigerant return mouth E, the second refrigerant return mouth F and refrigerant and goes out
Head piece G;Economizer 15 is provided with interconnected A mouth and B mouthful and interconnected C mouth and D mouthfuls.Specifically, low temperature jet
Enthalpy-increasing compressor 1 can be screw air injection enthalpy-increasing compressor or vortex air injection enthalpy-increasing compressor.Certainly, low in addition to selecting
Outside warm air injection enthalpy-increasing compressor, common compressor (non-air injection enthalpy-increasing compressor) can also be selected.
The connection relationship of these components are as follows:
The refrigerant outflow port G of low-temperature air injection enthalpy increasing compressor 1 passes through three-position four-way valve 2 and air cooling heat exchanger 41 and package
Formula condenser 42 is connected;
Shell and tube condenser 42 is connected with air cooling heat exchanger 41;
Air cooling heat exchanger 41 is connected by the first check valve 5 with liquid storage device 6;
Liquid storage device 6 is connected with device for drying and filtering 7;
Device for drying and filtering 7 is connected with the D of economizer 15 mouth, also passes through third solenoid valve 13 and the second expansion valve 14 and warp
The A mouth of Ji device 15 is connected;
The B mouth of economizer 15 is connected with the second refrigerant return mouth F of low-temperature air injection enthalpy increasing compressor 1;
The C mouth of economizer 15 is connected by the first expansion valve 8 and third check valve 10 with air cooling heat exchanger 41, is also passed through
First expansion valve 8 and second one-way valve 9 are connected with indoor heat exchanger 32;
Indoor heat exchanger 32 is connected by the 4th check valve 11 with liquid storage device 6, and three-position four-way valve 2 and gas-liquid point are also passed through
It is connected from device 12;
Gas-liquid separator 12 is connected with the first refrigerant return mouth E of low-temperature air injection enthalpy increasing compressor 1;
In a particular embodiment, it is additionally provided with the first solenoid valve 48 and second solenoid valve 49, refrigerant outflow port G passes through three
Four-way valve 2, the first solenoid valve 48 are connected with shell and tube condenser 42, and refrigerant outflow port G passes through three-position four-way valve 2, the second electromagnetism
Valve 49 is connected with the air cooling heat exchanger 41.
The course of work of wet film formula low form heat pump unit is specifically described below:
As shown in Fig. 2, starting blower 43 and cooling water pump 45 when unit is in refrigeration mode, the first solenoid valve is opened
48, close second solenoid valve 49.Cooling water is passed through in shell and tube condenser 42 and the unit refrigerant phase in shell and tube condenser 42
Mutually heat exchange, after spray through spray tube section 46 in the surface of wet film heat exchanger 47, and gradually infiltrate through and wet film and flow through wet film
Air heat-exchange, the cooling water after 47 cold filtration of wet film heat exchanger are passed through in shell and tube condenser 42 again, and so on follow
Ring.
Also, unit refrigerant flowed into again after mutually exchanging heat in shell and tube condenser 42 with cooling water air cooling heat exchanger 41 with
Air mutually exchanges heat cooling.As it can be seen that the heat pump unit is in cooling mode, keep air-cooled and water cooling parallel, thus compares existing skill
It is merely using air-cooled air-cooled unit, the simple water chiller for using water cooling and cold using cold evaporation is evaporated merely in art
Unit has bigger condensation area and higher refrigerating efficiency.
Also, unit is in cooling mode, can close third solenoid valve 13, at this time the flow path of unit refrigerant are as follows:
Refrigerant outflow port G → 2 → shell and tube condenser of three-position four-way valve, 42 → air cooling heat exchanger 41 of low-temperature air injection enthalpy increasing compressor 1 →
D mouth → economizer 15 C mouth → first expansion valve 8 of first 7 → economizer of check valve 5 → liquid storage device, 6 → device for drying and filtering 15
→ second one-way valve 9 → indoor heat exchanger, 32 → three-position four-way valve, 2 → gas-liquid separator, 12 → low-temperature air injection enthalpy increasing compressor 1
The first refrigerant return mouth E.Certainly, under refrigeration mode, third solenoid valve 13 (being not turned off in Fig. 2) can not also be closed.
As shown in figure 3, starting blower 43 when unit is in heating mode, cooling water pump 45 is closed, closes the first electromagnetism
Valve 48 opens second solenoid valve 49.Heating that unit refrigerant flows only through air cooling heat exchanger 41 and air mutually exchanges heat.As it can be seen that the heat
Pump assembly in a heating mode, only run it is air-cooled, the problem of can not being heated due to cooling water may be not present and freeze.
Also, unit is in a heating mode, third solenoid valve 13 is opened, at this point, the flow path such as the arrow in Fig. 3 of refrigerant
Shown in head line: refrigerant outflow port G → 2 → indoor heat exchanger of three-position four-way valve 32 → 4th of low-temperature air injection enthalpy increasing compressor 1
11 → liquid storage device of check valve, 6 → device for drying and filtering 7, is divided into two-way later.
The first via are as follows: A mouth → economizer 15 B mouth of 13 → the second 14 → economizer of expansion valve 15 of third solenoid valve → low
Second refrigerant return mouth F of warm air injection enthalpy-increasing compressor 1.
Second tunnel are as follows: D mouth → economizer 15 C mouth of economizer 15 → first expansion valve 8 → third, 10 → wind of check valve
First refrigerant return mouth E of cold heat exchanger 41 → three-position four-way valve, 2 → gas-liquid separator, 12 → low-temperature air injection enthalpy increasing compressor 1.
Wherein, the refrigerant that the A mouth of economizer 15 is entered through the first via is gaseous state, and the C mouth of economizer 15 is entered through the second tunnel
Refrigerant be gas-liquid mixed state, the refrigerant in two-way mutually exchanges heat in economizer 15, make the temperature of gas-liquid mixed state refrigerant into
One step reduces.Later, this part refrigerant after cooling flows into air cooling heat exchanger and mutually exchanges heat with air, due to this part refrigerant temperature
It spends lower, thus can also heat up with air heat-exchange under down to -25 DEG C of outdoor environments, thus make heat pump unit down to -25
It also can efficiently be heated under DEG C outdoor environment.
In addition to above-mentioned component, wet film formula low form Air-Cooled Heat Pump Unit further includes electric-controlled parts, specifically includes pressure sensing
Device, temperature sensor, pressure switch, temperature switch, electric wire, cable, electronic-control box and be located at the intracorporal relay of electric cabinet,
Contactor, PLC micro computer plate etc..
The position of each component of wet film formula low form Air-Cooled Heat Pump Unit is specifically described below, please refers to figure 5-8, schemes
5 be wet film formula low form Air-Cooled Heat Pump Unit provided by the invention, the partial sectional view under main view visual angle;Fig. 6 is the present invention
The wet film formula low form Air-Cooled Heat Pump Unit of offer, the full sectional view under main view visual angle;Fig. 7 is wet film formula provided by the invention
Low form Air-Cooled Heat Pump Unit, along Fig. 6 A-A to cross-sectional view;Fig. 8 is wet film formula low form air-cooled heat pump provided by the invention
The top view of unit.
As shown in Figure 5-Figure 8, wet film formula low form Air-Cooled Heat Pump Unit further includes outdoor unit housing 16, outdoor unit housing 16
It is inside provided with two partitions 17 and bottom plate 18, two partitions 17, bottom plate 18 and the roof, antetheca and rear wall of outdoor unit housing 16 enclose jointly
Synthesize the first accommodating chamber a.
Also, above-mentioned air cooling heat exchanger 41 and above-mentioned wet film heat exchanger 47 are respectively positioned in first accommodating chamber a.Also, wind
Cold heat exchanger 41 is located at the top of wet film heat exchanger 47;Also, the antetheca of the first accommodating chamber a and the top of rear wall be provided with into
Air port, the left side wall of the first accommodating chamber a and the lower part of right side wall are respectively provided with air outlet 171.
Specifically, as shown in figure 5, outdoor unit housing 16 includes frame 161 and 162 He of backplate being arranged on frame 161
Flase floor 163 forms above-mentioned air inlet by flase floor 163.
Specifically, as shown in figure 8, air cooling heat exchanger 41 can be set to V-type finned heat exchanger.And the two sides of V-type
Towards air inlet, and the bottom surface of V-type is downward, pinnacle is upward, and whole is in inverted V type.
Specifically, above-mentioned spray pipeline section 46 is also disposed in the first accommodating chamber a, and it is located at air cooling heat exchanger 41 and wet film
Between heat exchanger 47.Also, wet film formula low form Air-Cooled Heat Pump Unit further includes air filter 19, for filtering out in air
Impurity, which is also disposed in the first accommodating chamber a, and its be located at air cooling heat exchanger 41 and spray pipeline section 46 it
Between.
Further, as shown in fig. 6, the right side of the partition 17 of the left and right side of the partition 17 in left side is respectively arranged with one
Air duct b, that is to say, that the first accommodating chamber a left and right side is respectively arranged with an air duct b.Also, the air duct b in left side passes through a left side
The air outlet 171 of side is connected to the first accommodating chamber a, and the air duct b on right side is connected by the air outlet 171 on right side and the first accommodating chamber a
It is logical.Also, it as shown in figure 8, the outlet of two air duct b is both formed on the roof of outdoor unit housing 16, is respectively provided in two air duct b
There is blower 43, and blower 43 is respectively positioned on the position close to the outlet of air duct b.
Specifically, being also provided with the water collection device 20 for collecting the moisture in air in two air duct b, water collection device 20 is collected
Water fall after rise to cooling water tank 44, with reduce cooling water scatter and disappear.
More specifically, the lower section of the first accommodating chamber a and air duct b is arranged in cooling water tank 44, as shown in fig. 7, cooling water tank
It is acclivitous on the right side of bottom plate 18 when the position of 44 setting sides to the left.The water that the water collection device 20 in left side is collected at this time can be straight
It connects and falls into cooling water tank 44, the water that the water collection device 20 on right side is collected can be directed into cooling water tank 44 by bottom plate 18.And
And cooling water pump 45 is directly arranged in cooling water tank 44, in order to save space.
Specifically, the other component of wet film formula low form Air-Cooled Heat Pump Unit is also arranged at the first accommodating chamber a and air duct b
Lower section, as shown in fig. 6, being respectively provided with the position of side to the right.
As above when setting, the flow path of air is as shown in arrow line in Fig. 5 and Fig. 6, and under the effect of blower 43, air is certainly
After flase floor 163 enters the first accommodating chamber a, the surface for the air cooling heat exchanger 41 being located above first is flowed through, passes through wet film heat exchange
The surface of device 47 flows to the air duct b of respective side respectively from two sides air outlet 171 later, and is discharged from the outlet of air duct b, thus
Wet film heat exchanger can be enhanced to the cooling effect of cooling water.
In summary, wet film formula low form Air-Cooled Heat Pump Unit provided by the invention, has the following technical effect that
1, by the less scaling wet film heat exchanger of setting itself, shell-tube type condensation is passed through after filtering cooling water temperature
Device alleviates the scale problems of shell and tube condenser, evaded fouling seriously and caused the decline of unit efficiency, unit operation and maintenance at
The problem of this height, operation stability difference.
2, when freezing, air-cooled and water cooling is parallel, so as to highly effective refrigeration.
3, it when heating, only runs air-cooled, has evaded that heating efficiency is low under cooling water freezing low temperature environment or even cannot heat
The problem of, so as to efficiently heat, and it is provided with low-temperature air injection enthalpy increasing compressor, thus in the environment temperature down to -25 DEG C
It still is able to efficiently heat under degree, therefore there is wide application region (also can be used in the Northeast of China), convenient for promoting.
4, each component layouts are reasonable, compact overall structure, and using when be directly placed at ground or roof (without computer room),
Use cost is low.
Wet film formula low form Air-Cooled Heat Pump Unit provided by the invention is described in detail above.It is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally
The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair
, can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention
In the protection scope that benefit requires.
Claims (8)
1. a kind of wet film formula low form Air-Cooled Heat Pump Unit, which is characterized in that including low-temperature air injection enthalpy increasing compressor (1), three
Four-way valve (2), the first heat exchanging part (3,3 '), the second heat exchanging part (4), the first check valve (5), liquid storage device (6), device for drying and filtering
(7), the first expansion valve (8), second one-way valve (9), third check valve (10), the 4th check valve (11), gas-liquid separator (12),
Third solenoid valve (13), the second expansion valve (14), economizer (15);
First heat exchanging part (3,3 ') includes indoor heat exchanger (32,32 ');Second heat exchanging part (4) includes air-cooled changes
Hot device (41) and the blower (43) for causing air flow through the air cooling heat exchanger (41) surface further include shell and tube condenser (42) with
And the cooling water pump (45) to the shell and tube condenser (42) pumping cooling water, it further include cooling water tank (44), positioned at described
Wet film heat exchanger (47) above cooling water tank (44) and the spray pipeline section to wet film heat exchanger (47) the spraying cooling water
(46), the spray pipeline section (46) is connected with the shell and tube condenser (42);
The low-temperature air injection enthalpy increasing compressor (1) is provided with the first refrigerant return mouth (E), the second refrigerant return mouth (F) and refrigerant
Outflow port (G);The economizer (15) is provided with interconnected A mouth and B mouthful and interconnected C mouth and D mouthfuls;
The refrigerant outflow port (G) passes through the three-position four-way valve (2) and the air cooling heat exchanger (41) and the shell-tube type
Condenser (42) is connected;The shell and tube condenser (42) is connected with the air cooling heat exchanger (41);The air cooling heat exchanger
(41) it is connected by first check valve (5) with the liquid storage device (6);The liquid storage device (6) and the device for drying and filtering (7)
It is connected;The device for drying and filtering (7) is connected with described D mouthfuls, also passes through the third solenoid valve (13) and second expansion
Valve (14) is connected with described A mouthfuls;Described B mouthfuls is connected with the second refrigerant return mouth (F);Described C mouthfuls swollen by described first
Swollen valve (8) and the third check valve (10) are connected with the air cooling heat exchanger (41), also pass through first expansion valve (8)
And the second one-way valve (9) and the indoor heat exchanger (32,32 ') are connected;The indoor heat exchanger (32,32 ')
It is connected by the 4th check valve (11) with the liquid storage device (6), also passes through the three-position four-way valve (2) and the gas-liquid point
It is connected from device (12);The gas-liquid separator (12) is connected with the first refrigerant return mouth (E).
2. wet film formula low form Air-Cooled Heat Pump Unit according to claim 1, which is characterized in that second heat exchanging part
It (4) further include the first solenoid valve (48) and second solenoid valve (49), the refrigerant outflow port (G) passes through the three-position four-way valve
(2), first solenoid valve (48) is connected with the shell and tube condenser (42), and the refrigerant outflow port (G) passes through described three
Position four-way valve (2), the second solenoid valve (49) are connected with the air cooling heat exchanger (41).
3. wet film formula low form Air-Cooled Heat Pump Unit according to claim 1 or 2, which is characterized in that the air-cooled heat exchange
Device (41) is finned heat exchanger.
4. wet film formula low form Air-Cooled Heat Pump Unit according to claim 1 or 2, which is characterized in that the wet film formula is low
Warm type Air-Cooled Heat Pump Unit further includes two partitions (17) and bottom plate (18) of outdoor unit housing (16) and position in the inner, two it is described every
Roof, antetheca and the rear wall of plate (17), the bottom plate (18) and the outdoor unit housing (11) enclose the first accommodating chamber jointly
(a);The air cooling heat exchanger (41) and the wet film heat exchanger (47) are respectively positioned in first accommodating chamber (a), and the wind
Cold heat exchanger (41) is located at the top of the wet film heat exchanger (47);The top of the antetheca and the rear wall is provided with air inlet
Mouthful, the lower part of two partitions is provided with air outlet (171).
5. wet film formula low form Air-Cooled Heat Pump Unit according to claim 4, which is characterized in that the spray pipeline section (46)
Be also disposed in first accommodating chamber (a), and its be located at the air cooling heat exchanger (41) and the wet film heat exchanger (47) it
Between;The wet film formula low form Air-Cooled Heat Pump Unit further includes air filter (19), and the air filter (19) is also provided with
In first accommodating chamber (a), and it is located between the air cooling heat exchanger (41) and the spray pipeline section (46).
6. wet film formula low form Air-Cooled Heat Pump Unit according to claim 4, which is characterized in that the outdoor unit housing
(16) backplate (162) and flase floor (163) for including frame (161) and being arranged on the frame (161), also, pass through institute
It states flase floor (163) and forms the air inlet.
7. wet film formula low form Air-Cooled Heat Pump Unit according to claim 4, which is characterized in that a partition (17)
Air duct (b) is provided on the right side of left side and another partition (17);Two air ducts (b) pass through the outlet air of respective side
Mouth (171) is connected to first accommodating chamber (a);The outlet of two air ducts (b) is both formed in the outdoor unit housing (16)
Roof, and the outlet port of two air ducts (b) is provided with the blower (43).
8. wet film formula low form Air-Cooled Heat Pump Unit according to claim 7, which is characterized in that in two air ducts (b)
It is provided with the water collection device (20) for collecting the moisture in air, the water that the water collection device (20) is collected is fallen after rise to the cooling
Water tank (44).
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CN101109547A (en) * | 2007-07-04 | 2008-01-23 | 宝鸡海元人工环境设备有限公司 | Integrated water-cooling and water-cycling domestic central air conditioner |
WO2014012286A1 (en) * | 2012-07-20 | 2014-01-23 | 广州市华德工业有限公司 | Cold water machine group of filler coupling coil pipe evaporative type condenser |
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