CN106765742A - Air conditioning unit with flooded shell and tube heat exchanger - Google Patents
Air conditioning unit with flooded shell and tube heat exchanger Download PDFInfo
- Publication number
- CN106765742A CN106765742A CN201611039571.1A CN201611039571A CN106765742A CN 106765742 A CN106765742 A CN 106765742A CN 201611039571 A CN201611039571 A CN 201611039571A CN 106765742 A CN106765742 A CN 106765742A
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- type case
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- 238000004378 air conditioning Methods 0.000 title abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 173
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 58
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 28
- 239000003921 oil Substances 0.000 description 12
- 238000005057 refrigeration Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000002826 coolant Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004781 supercooling Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- 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
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses an air conditioning unit with a flooded shell and tube heat exchanger, which comprises a compressor, a shell and tube heat exchanger, a heat exchanger; the first heat exchanger is communicated with the outflow end of the compressor; the first end of the tube side of the flooded shell-and-tube heat exchanger is connected with the first end of the first heat exchanger, and the second end of the tube side of the flooded shell-and-tube heat exchanger is connected with the inflow end of the compressor; a throttling element connected between the first heat exchanger and the flooded shell and tube heat exchanger; the gas-liquid separator is connected between the second end of the tube side of the flooded shell-and-tube heat exchanger and the inflow end of the compressor; the first end of the first heat exchanger and the tube side second end of the flooded shell and tube heat exchanger are connected with a first heat exchange pipeline of the bidirectional heat exchanger, one end of a second heat exchange pipeline of the bidirectional heat exchanger is connected with an auxiliary pipeline end of the gas-liquid separator, the auxiliary pipeline end is communicated with a liquid phase, and the other end of the second heat exchange pipeline is communicated with a middle gas supplementing port of the compressor. The invention can reduce the refrigerant liquid cached in the gas-liquid separator and prevent the liquid impact accident of the compressor caused by the suction of a large amount of refrigerant liquid by the compressor.
Description
Technical field
The present invention relates to heat pump technical field, and in particular to a kind of air conditioner with full-liquid type case tube heat exchanger
Group.
Background technology
The evaporator of air-conditioner set generally includes full-liquid type case tube heat exchanger and dry type case tube heat exchanger.
Full-liquid type case tube heat exchanger is relative to dry type package, and its cooling medium charging amount is much greater.Because refrigerant charge
Greatly, water is small with the heat exchange convergence temperature difference of refrigerant, and heat exchange efficiency is higher, there is significant advantage in terms of improving performance.But,
Because the cooling medium charging amount of full-liquid type package is big, there is liquid refrigerants, the cooling medium charging amount phase of whole air-conditioning system in heat exchanger
Much bigger for the air-conditioner set of dry type package, compressor air suction is with liquid so as to also be improved very by the risk of liquid hazards
It is many.
Traditional full-liquid type case tube heat exchanger is generally walked in order to avoid compressor problem of oil return using heat exchanger inner refrigerant
Shell side, chilled water walks the mode of tube side.So cause the excessive problem of system coolant injection amount.Therefore, Chinese patent literature
CN103175325A proposes a kind of full-liquid type handpiece Water Chilling Units, including gas compressor, is connected with gas compressor outlet side
Condenser, the heat exchanger being connected with the outlet of condenser and the inlet end of gas compressor, the end of condenser sets
The bottom delivery port for having cooling water outlet and inlet, heat exchanger is connected with a water pump, in the outlet and gas compression of condenser
The centre that the inlet end of machine is connected with heat exchanger respectively is also communicated with a vapor-liquid separating device, the vapor-liquid separating device point
The inlet end of outlet, gas compressor not with condenser, the inlet of heat exchanger, gas outlet are mutually docked and connected, cold
A throttling arrangement is provided between the outlet and vapor-liquid separating device of condenser.The refrigerating capacity of the prior art is big, refrigeration
More preferably, and compressor oil return is solved the problems, such as.
In the existing air-conditioner set, solve way of the compressor air suction with liquid and be typically to increase gas-liquid separator, pass through
The effect of gas-liquid separator caching refrigerant reduces the absorbing gas belt liquid of compressor.But, this part refrigerant is only to be buffered in gas
Liquid/gas separator and be not effectively utilised, it is not heat exchange component to add gas-liquid separator, and the refrigerant of caching can only pass through
Internally pole is slowly evaporated or is gradually sucked by compressor, not only causes the waste of the energy, can also be made when buffer memory is excessive
A large amount of refrigerant liquid are sucked into compressor and the situation of liquid hazards compressor occur.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome of the prior art with full-liquid type case tube heat exchanger
The refrigerant cached in the gas-liquid separator of air-conditioner set does not simply fail to be fully utilized and cause energy waste, can also be in buffer memory
Compressor is caused to suck a large amount of refrigerant liquid and cause the defect of liquid hazards compressor when excessive, so as to provide a kind of by gas-liquid
The refrigerant cached in separator makes full use of reduction energy waste, while it is a large amount of cold to avoid buffer memory from excessively causing compressor to suck
Matchmaker's liquid and cause the air-conditioner set with full-liquid type case tube heat exchanger of liquid hazards compressor.
A kind of air-conditioner set with full-liquid type case tube heat exchanger of the invention, including
Compressor；
The First Heat Exchanger being connected with the compressor outflow end；
Full-liquid type case tube heat exchanger, its tube side first end is connected with the first end of the First Heat Exchanger, its tube side second
End is connected with the inflow end of the compressor；
It is connected to the restricting element between the First Heat Exchanger and the full-liquid type case tube heat exchanger；
And it is at least connected with the inflow at the end of the tube side second of the full-liquid type case tube heat exchanger with the compressor
Gas-liquid separator between end；
Also include two-way heat exchanger, the tube side of the first end of the First Heat Exchanger and the full-liquid type case tube heat exchanger the
Two ends are connected with the first heat exchanging pipe of the two-way heat exchanger, one end connection of the second heat exchanging pipe of the two-way heat exchanger
The bypass end of the connection liquid phase of the gas-liquid separator, the other end of second heat exchanging pipe and the middle benefit of the compressor
Gas port is connected.
Also include that the connection compressor, the gas-liquid separator, the First Heat Exchanger and the full-liquid type package are changed
Hot device four-way valve, mode of operation is changed by being gated to the four-way valve.
The bypass end is arranged at the bottom of the gas-liquid separator.
The two-way heat exchanger is economizer.
Flow control valve is provided between the bypass end and second heat exchanging pipe.
The outflow end of the compressor is provided with oil eliminator.
The first heat exchanging pipe upstream of the two-way heat exchanger connects a device for drying and filtering.
First that the two-way heat exchanger circulation is provided between the First Heat Exchanger and the two-way heat exchanger is single
To valve, the full-liquid type case tube heat exchanger circulation is provided between the restricting element and the full-liquid type case tube heat exchanger
Second check valve, is provided with the two-way heat exchanger circulation between the full-liquid type case tube heat exchanger and the two-way heat exchanger
The 3rd check valve, the 4th of First Heat Exchanger circulation the is provided between the restricting element and the First Heat Exchanger
Check valve.
The device for drying and filtering is respectively arranged at two ends with ball valve.
The restricting element is electric expansion valve.
Technical solution of the present invention, has the following advantages that：
1. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, by the company of setting on gas-liquid separator
The bypass end of logical liquid phase, and by the first heat exchanging pipe of two-way heat exchanger respectively with First Heat Exchanger, full-liquid type case tube heat exchanger
Connection, the intermediate fill gas mouth of the second heat exchanging pipe of two-way heat exchanger bypass end respectively with gas-liquid separator, compressor is connected
It is logical, the liquid refrigerants in gas-liquid separator can be made to enter into the second heat exchanging pipe of two-way heat exchanger because this part from
Refrigerant in gas-liquid separator out is that temperature is reduced by gained after restricting element throttling, and the main road refrigerant of air-conditioner set
Restricting element throttling is had not gone through when in the first heat exchanging pipe for entering two-way heat exchanger, so in gas-liquid separator
Liquid refrigerants enter into the second heat exchanging pipe of two-way heat exchanger after the main road refrigerant that can absorb in the first heat exchanging pipe
Heat, on the one hand can lift the degree of supercooling in main road so that the refrigerant exchange capability of heat of unit mass is further improved；It is another
Aspect can make the liquid refrigerants in gas-liquid separator when being exchanged heat with main road refrigerant in by two-way heat exchanger, absorb main road cold
The heat of matchmaker and evaporate gasification, temperature is raised, then is recovered in compressor by the intermediate fill gas mouth of compressor, can not only be increased
The decrement of compressor so that compressor displacement increases and then increases exchange capability of heat, and can reduce in gas-liquid separator and delay
The refrigerant liquid deposited, effectively prevents compressor from sucking a large amount of refrigerant liquid and causing compressor liquid hammer accident.
2. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, also including connecting the compressor, institute
The four-way valve of gas-liquid separator, the First Heat Exchanger and the full-liquid type case tube heat exchanger is stated, is selected by the four-way valve
Lead to change mode of operation, air-conditioner set can be made flexibly to switch in kind of refrigeration cycle and between heating circulation.
3. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the bypass end is arranged at the gas-liquid
The bottom of separator.Due to the density variation between liquids and gases, liquid refrigerants typically can be in gas-liquid separator bottom, will be auxiliary
Terminal is arranged on gas-liquid separator bottom, and the liquid refrigerants in gas-liquid separator can be made more fully to enter into two-way heat exchanger
The second heat exchanging pipe in.
4. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the two-way heat exchanger is economizer.
Circulated using economizer tonifying Qi, the decrement of compressor can be increased so that compressor displacement increases and then increases exchange capability of heat,
The efficiency that air-conditioner set compresses kind of refrigeration cycle is improved, refrigerating capacity is improved, compressor exhaust temperature is reduced.
5. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the bypass end and the described second heat exchange
Flow control valve is provided between pipeline, can choose whether that the bypass end for connecting gas-liquid separator is changed with the second of two-way heat exchanger
Pipe line, further, can also adjust the flow of the refrigerant that the bypass end of gas-liquid separator is entered into the second heat exchanging pipe.
6. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the outflow end of the compressor is provided with
Oil eliminator.The lubricating oil that oil eliminator is used in the high steam for discharging compressor is separated, to ensure air-conditioner set
Safely and efficiently run.
7. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, described the first of the two-way heat exchanger
Heat exchanging pipe upstream connects a device for drying and filtering.Device for drying and filtering can filter out refrigeration or heating recycle system in steam and
Impurity etc..
8. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the First Heat Exchanger is two-way with described
The first check valve of the two-way heat exchanger circulation, the restricting element and the full-liquid type package are provided between heat exchanger
Be provided with the second check valve of full-liquid type case tube heat exchanger circulation between heat exchanger, the full-liquid type case tube heat exchanger with
It is provided with the 3rd check valve of two-way heat exchanger circulation between the two-way heat exchanger, the restricting element and described the
The 4th check valve of the First Heat Exchanger circulation is provided between one heat exchanger.First check valve, the second check valve, the 3rd
Check valve and the 4th check valve have the effect of one-way conduction, it can be ensured that in freezing and heating circulation, refrigerant is according to predetermined
Path flows.
9. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the two ends difference of the device for drying and filtering
It is provided with ball valve.Ball valve is located at device for drying and filtering two ends, can facilitate and device for drying and filtering is changed.
10. the air-conditioner set with full-liquid type case tube heat exchanger that the present invention is provided, the restricting element is electronic expansion
Valve.Electric expansion valve is compared to other restricting elements such as capillaries, and the ambient temperature range of operation is wide, throttling stabilization.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is in the air-conditioner set with full-liquid type case tube heat exchanger of offer in the first implementation method of the invention
Portion's structural representation.
Description of reference numerals：
1- compressors, 2- oil eliminators, 3- four-way valves, 4- First Heat Exchangers, the check valves of 51- first, 52- second is unidirectional
Valve, the check valves of 53- the 3rd, the check valves of 54- the 4th, 6- ball valves, 7- devices for drying and filtering, 8- two-way heat exchangers, 9- restricting elements,
10- full-liquid type case tube heat exchangers, 101- tube side first ends, the end of 102- tube sides second, 11- gas-liquid separators, 111- bypasses end,
12- flow control valves.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
As shown in figure 1, a kind of air-conditioner set with full-liquid type case tube heat exchanger of the present embodiment offer, including compressor 1,
First Heat Exchanger 4, full-liquid type case tube heat exchanger 10, restricting element 9, gas-liquid separator 11 and two-way heat exchanger 8.Wherein, first
Heat exchanger 4 is connected with the outflow end of compressor 1；The tube side first end 101 of full-liquid type case tube heat exchanger 10 and First Heat Exchanger 4
First end is connected, and the second end of tube side 102 is connected with the inflow end of compressor 1；Restricting element 9 is connected to First Heat Exchanger 4 and expires
Between liquid formula case tube heat exchanger 10；Gas-liquid separator 11 is at least connected with second end of tube side 102 of full-liquid type case tube heat exchanger 10
And the inflow end of compressor 1 between；The first end of First Heat Exchanger 4 and second end of tube side 102 of full-liquid type case tube heat exchanger 10
The two ends with the first heat exchanging pipe of two-way heat exchanger 8 are connected respectively, one end connection of the second heat exchanging pipe of two-way heat exchanger 8
The bypass end 111 of the connection liquid phase of gas-liquid separator 11, the other end of the second heat exchanging pipe connects with the intermediate fill gas mouth of compressor 1
It is logical.
The concrete form of First Heat Exchanger 4 can have various, and in the present embodiment, First Heat Exchanger 4 is finned heat exchanger.
Used as disposable implementation method, First Heat Exchanger 4 can also be plate type heat exchanger.
Further, the present embodiment is on the basis of above-described embodiment, the present embodiment with full-liquid type case tube heat exchanger
Air-conditioner set, also including connecting the compressor 1, the gas-liquid separator 11, the First Heat Exchanger 4 and the full-liquid type shell
The four-way valve 3 of heat exchange of heat pipe 10, mode of operation is changed by being gated to the four-way valve 3, can make air-conditioner set in refrigeration
Circulate and heat and flexibly switch between circulating.
Specific set location of the bypass end 111 on gas-liquid separator 11 is unrestricted, as long as with gas-liquid separator 11
Liquid phase connection, in the present embodiment, the bypass end 111 is arranged at the bottom of the gas-liquid separator 11.Due to liquid
Bypass end 111 typically can be arranged on gas-liquid by the density variation between body and gas, liquid refrigerants in the bottom of gas-liquid separator 11
The bottom of separator 11, can make the liquid refrigerants in gas-liquid separator 11 more fully enter into the second of two-way heat exchanger 8 and change
In pipe line.
The concrete form of two-way heat exchanger 8 can have various, and in the present embodiment, the two-way heat exchanger 8 is economizer.
Circulated using economizer tonifying Qi, the decrement of compressor 1 can be increased so that the discharge capacity of compressor 1 increases and then increases heat-energy transducer
Power, improves the efficiency that air-conditioner set compresses kind of refrigeration cycle, improves refrigerating capacity, reduces the delivery temperature of compressor 1.As disposable
Implementation method, two-way heat exchanger 8 can also be flash tank.
Further, the present embodiment is on the basis of above-described embodiment, the bypass end 111 and second heat exchanging pipe it
Between be provided with flow control valve 12, flow control valve 12 can be the valve of the valve, or control break-make for adjusting flow, both
The bypass end 111 of connection gas-liquid separator 11 and the second heat exchanging pipe of two-way heat exchanger 8 are can choose whether, in the present embodiment
In, flow control valve 12 is the magnetic valve of regulation flow, and the bypass end 111 that can also further adjust gas-liquid separator 11 enters
To the flow of the refrigerant in the second heat exchanging pipe.
In order to the lubricating oil in the high steam of discharging compressor 1 is separated, to ensure that air-conditioner set is safe and efficient
Ground operation, in the present embodiment, the outflow end of the compressor 1 is provided with oil eliminator 2.
It is in the present embodiment, described two-way to change in order to filter out the steam and impurity etc. in refrigeration or heating recycle system
The first heat exchanging pipe upstream of hot device 8 connects a device for drying and filtering 7.
In order to ensure in freezing and heating circulation, refrigerant according to predetermined path flows, in the present embodiment, described the
The first check valve 51 of the circulation of the two-way heat exchanger 8 is provided between one heat exchanger 4 and the two-way heat exchanger 8, it is described
The second of the circulation of full-liquid type case tube heat exchanger 10 is provided between restricting element 9 and the full-liquid type case tube heat exchanger 10
Check valve 52, is provided with the two-way heat exchanger 8 and flows between the full-liquid type case tube heat exchanger 10 and the two-way heat exchanger 8
The 3rd logical check valve 53, is provided with the First Heat Exchanger 4 and flows between the restricting element 9 and the First Heat Exchanger 4
The 4th logical check valve 54.First check valve 51, the second check valve 52, the 3rd check valve 53 and the 4th check valve 54 have unidirectional
The effect of conducting, it can be ensured that in freezing and heating circulation, refrigerant is according to predetermined path flows.
Device for drying and filtering 7 is changed for convenience, the device for drying and filtering 7 of the present embodiment is respectively arranged at two ends with
Ball valve 6.
The specific constructive form of restricting element 9 can have various, and in the present embodiment, the restricting element 9 is that electronics is swollen
Swollen valve, the ambient temperature range of operation is wide, throttling stabilization.Used as disposable implementation method, restricting element 9 can also be capillary
Pipe.
The main road loop flow direction of two-way heat exchanger 8 in the present embodiment：The F1 ends of 7 → two-way heat exchanger of device for drying and filtering 8 →
F3 ends → the restricting element 9 of two-way heat exchanger 8.
The bypass loop flow direction of two-way heat exchanger 8 in the present embodiment：The P4 ends of 11 → two-way heat exchanger of gas-liquid separator 8 →
The intermediate fill gas mouth of the P2 ends → compressor 1 of two-way heat exchanger 8.
The refrigerative circle system of the air-conditioner set with full-liquid type case tube heat exchanger of the present embodiment is as follows：
Coolant refrigeration is flowed to：
3 → First Heat Exchanger of compressor 1 → oil eliminator, 2 → four-way valve 4 → the first, 51 → device for drying and filtering of check valve 7 →
Check valve 52 → full-liquid type case tube heat exchanger 10 → four-way valve, the 3 → gas-liquid separator of 8 → restricting element of two-way heat exchanger 9 → the second
11 → compressor 1.
Refrigerant is compressed to the gas of HTHP in the compressor 1, after oil eliminator 2 isolates refrigeration oil by
Four-way valve 3 enters in First Heat Exchanger 4 refrigerant liquid for turning into middle temperature high pressure, then enters dried by the first check valve 51
Filter 7 filters out steam and impurity etc., then enters two-way heat exchanger 8 by the F1 ends of two-way heat exchanger 8, is changed by with by two-way
After the heat exchange supercooling of the refrigerant from gas-liquid separator 11 that the P4 ends of hot device 8 flow into, then flowed out by the F3 ends of two-way heat exchanger 8,
Enter into restricting element 9 to throttle, then step-down cooling is entered into full-liquid type case tube heat exchanger 10 by the second check valve 52 again
Evaporation and heat-exchange then is entered into compressor 1 after sequentially passing through four-way valve 3 and gas-liquid separator 11 into the cold media gas of low-temp low-pressure
Start next refrigerant circulation.
The air-conditioner set with full-liquid type case tube heat exchanger of the present embodiment to heat cyclic process as follows：
Refrigerant heats flow direction：
The check valve 53 of compressor 1 → oil eliminator, 2 → four-way valve, 3 → full-liquid type case tube heat exchanger the 10 → the 3rd → dried
Check valve 54 → First Heat Exchanger, 4 → four-way valve, the 3 → gas-liquid separator of 7 → two-way heat exchanger of filter, 8 → restricting element the 9 → the 4th
11 → compressor 1.
Refrigerant is compressed to the gas of HTHP in the compressor 1, after oil eliminator 2 isolates refrigeration oil by
Four-way valve 3 enters full-liquid type case tube heat exchanger 10 turns into the refrigerant liquid of middle temperature high pressure, then is entered by the 3rd check valve 53
Device for drying and filtering 7 filters out steam and impurity etc., then by two-way heat exchanger 8 F1 ends enter two-way heat exchanger 8, by with by
After the heat exchange supercooling of the refrigerant from gas-liquid separator 11 that the P4 ends of two-way heat exchanger 8 flow into, then by the F3 ends of two-way heat exchanger 8
Outflow, enters into restricting element 9 and throttles, step-down cooling, is then entered into First Heat Exchanger 4 by the 4th check valve 54 again and steamed
Hair exchanges heat into the cold media gas of low-temp low-pressure, then to sequentially pass through enter into after four-way valve 3 and gas-liquid separator 11 and opened in compressor 1
Begin next refrigerant circulation.
From the foregoing, the present embodiment connects the bypass end 111 of liquid phase by being set on gas-liquid separator 11, and will be double
Connected with First Heat Exchanger 4, full-liquid type case tube heat exchanger 10 respectively to the first heat exchanging pipe of heat exchanger 8, by two-way heat exchanger 8
The second heat exchanging pipe bypass end 111 respectively with gas-liquid separator 11, the intermediate fill gas mouth of compressor 1 connect, gas can be made
Liquid refrigerants in liquid/gas separator 11 is entered into the second heat exchanging pipe of two-way heat exchanger 8, because this part is from gas-liquid separation
Refrigerant in device 11 out is that temperature is reduced, and the main road refrigerant of air-conditioner set is entering by gained after the throttling of restricting element 9
The throttling of restricting element 9 is had not gone through when in the first heat exchanging pipe of two-way heat exchanger 8, so in gas-liquid separator 11
Liquid refrigerants can absorb the main road refrigerant in the first heat exchanging pipe after entering into the second heat exchanging pipe of two-way heat exchanger 8
Heat, on the one hand can lift the degree of supercooling in main road so that the refrigerant exchange capability of heat of unit mass is further improved；The opposing party
Face can make the liquid refrigerants in gas-liquid separator 11 when being exchanged heat with main road refrigerant in by two-way heat exchanger 8, absorb main road
The heat of refrigerant and evaporate gasification, temperature is raised, then is recovered in compressor 1 by the intermediate fill gas mouth of compressor 1, not only can be with
Increase the decrement of compressor 1 so that the discharge capacity of compressor 1 increases and then increases exchange capability of heat, and can reduce gas-liquid separation
The refrigerant liquid cached in device 11, effectively prevents compressor 1 from sucking a large amount of refrigerant liquid and causing the liquid hammer accident of compressor 1.This
Outward, if no liquid refrigerant in gas-liquid separator 11, then flow out to two-way heat exchanger 8 by bypass end 111 is exactly cold gas
Matchmaker, because gas coolant of this part from gas-liquid separator 11 is also by gained, institute after the cooling of the reducing pressure by regulating flow of restricting element 9
Also to have exchange capability of heat, the heat of main road refrigerant can be equally absorbed to lift the degree of supercooling in main road, while this part is come
The intermediate fill gas mouth for still entering compressor 1 after absorbing heat from the gas coolant of gas-liquid separator 11 participates in compression.
It should be noted that in kind of refrigeration cycle, refrigerant enters into full-liquid type package and changes after by the second check valve 52
Hot device 10, device for drying and filtering 7 is returned to rather than by the 3rd check valve 53, because " the second check valve the 52 → the 3rd is unidirectional
53 → device for drying and filtering of valve 7 " this route is not by the reducing pressure by regulating flow of restricting element 9, so pressure can be more than " second is single
To 52 → full-liquid type of valve case tube heat exchanger 10 " pressure in this route, so refrigerant is after by the second check valve 52, enter
To full-liquid type case tube heat exchanger 10, device for drying and filtering 7 is returned to rather than by the 3rd check valve 53.
Similarly, in circulation is heated, refrigerant enters into First Heat Exchanger 4 after by the 4th check valve 54, rather than logical
Cross the first check valve 51 and return to device for drying and filtering 7, also in that " 51 → the dry filter of check valve of the 4th check valve 54 → the first
Device 7 " this route is not by the reducing pressure by regulating flow of restricting element 9, so pressure can be more than " the 4th check valve 54 → the first is changed
Pressure in hot device 4 " this route, so refrigerant is after by the 4th check valve 54, enters into First Heat Exchanger 4, rather than
Device for drying and filtering 7 is returned to by the first check valve 51.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of air-conditioner set with full-liquid type case tube heat exchanger, including
Compressor (1)；
The First Heat Exchanger (4) being connected with the outflow end of the compressor (1)；
Full-liquid type case tube heat exchanger (10), its tube side first end (101) is connected with the first end of the First Heat Exchanger (4), its
The end of tube side second (102) is connected with the inflow end of the compressor (1)；
It is connected to the restricting element (9) between the First Heat Exchanger (4) and the full-liquid type case tube heat exchanger (10)；
And be at least connected with the end of the tube side second (102) of the full-liquid type case tube heat exchanger (10) and the compressor
(1) the gas-liquid separator (11) flowed between end；
Characterized in that,
Also include two-way heat exchanger (8), the first end of the First Heat Exchanger (4) and the full-liquid type case tube heat exchanger (10)
The end of the tube side second (102) is connected with the first heat exchanging pipe of the two-way heat exchanger (8), the two-way heat exchanger (8)
One end of second heat exchanging pipe connects the bypass end (111) of the connection liquid phase of the gas-liquid separator (11), second heat exchange
The other end of pipeline is connected with the intermediate fill gas mouth of the compressor (1).
2. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 1, it is characterised in that also including connection
The compressor (1), the gas-liquid separator (11), the First Heat Exchanger (4) and the full-liquid type case tube heat exchanger (10)
Four-way valve (3), change mode of operation by being gated to the four-way valve (3).
3. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 1, it is characterised in that the bypass end
(111) it is arranged at the bottom of the gas-liquid separator (11).
4. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 1, it is characterised in that described two-way to change
Hot device (8) is economizer.
5. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 1, it is characterised in that the bypass end
(111) flow control valve (12) is provided between second heat exchanging pipe.
6. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 1, it is characterised in that the compressor
(1) outflow end is provided with oil eliminator (2).
7. the air-conditioner set with full-liquid type case tube heat exchanger according to any one of claim 1-6, it is characterised in that
The first heat exchanging pipe upstream of the two-way heat exchanger (8) connects a device for drying and filtering (7).
8. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 7, it is characterised in that described first changes
First check valve (51) of the two-way heat exchanger (8) circulation is provided between hot device (4) and the two-way heat exchanger (8),
The full-liquid type case tube heat exchanger (10) is provided between the restricting element (9) and the full-liquid type case tube heat exchanger (10)
Second check valve (52) of circulation, is provided between the full-liquid type case tube heat exchanger (10) and the two-way heat exchanger (8)
3rd check valve (53) of two-way heat exchanger (8) circulation, between the restricting element (9) and the First Heat Exchanger (4)
It is provided with the 4th check valve (54) of the First Heat Exchanger (4) circulation.
9. the air-conditioner set with full-liquid type case tube heat exchanger according to claim 7, it is characterised in that described dried
Filter (7) is respectively arranged at two ends with ball valve (6).
10. the air-conditioner set with full-liquid type case tube heat exchanger according to any one of claim 1-6,8,9, its feature
It is that the restricting element (9) is electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039571.1A CN106765742A (en) | 2016-11-21 | 2016-11-21 | Air conditioning unit with flooded shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611039571.1A CN106765742A (en) | 2016-11-21 | 2016-11-21 | Air conditioning unit with flooded shell and tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106765742A true CN106765742A (en) | 2017-05-31 |
Family
ID=58974870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611039571.1A Pending CN106765742A (en) | 2016-11-21 | 2016-11-21 | Air conditioning unit with flooded shell and tube heat exchanger |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099609A (en) * | 2018-09-06 | 2018-12-28 | 珠海格力电器股份有限公司 | Heat pump set |
| CN109269138A (en) * | 2018-09-03 | 2019-01-25 | 南京天加环境科技有限公司 | A kind of multi-line system and its control method for preventing compressor from returning liquid |
| CN109373636A (en) * | 2018-11-09 | 2019-02-22 | 珠海格力电器股份有限公司 | System and method for preventing liquid impact |
| CN112413954A (en) * | 2020-11-23 | 2021-02-26 | 珠海格力电器股份有限公司 | Air source heat pump hot water chilling unit control method and device and air conditioning system |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3438037B2 (en) * | 1999-05-14 | 2003-08-18 | シャープ株式会社 | Air circulation system and drying system and air conditioning system using the same |
| CN2763760Y (en) * | 2004-12-16 | 2006-03-08 | 上海大洋制冷工程有限公司 | Gas-liquid separator with heat regenerator function |
| JP3823706B2 (en) * | 2000-09-07 | 2006-09-20 | 株式会社日立製作所 | Air conditioner |
| JP3918421B2 (en) * | 2000-09-21 | 2007-05-23 | 三菱電機株式会社 | Air conditioner, operation method of air conditioner |
| CN201297813Y (en) * | 2008-10-31 | 2009-08-26 | 青岛海信日立空调系统有限公司 | Novel regenerative gas-liquid separator |
| JP2011112327A (en) * | 2009-11-30 | 2011-06-09 | Panasonic Corp | Air conditioner and refrigerating device |
| JP2012163219A (en) * | 2009-06-11 | 2012-08-30 | Panasonic Corp | Heat pump system |
| CN202993700U (en) * | 2012-12-18 | 2013-06-12 | 珠海格力电器股份有限公司 | Two-stage compression refrigeration system with liquid supplementing and cooling functions |
| CN203203289U (en) * | 2013-04-09 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104019585A (en) * | 2014-06-24 | 2014-09-03 | 山东雅士股份有限公司 | Flooded evaporator and flooded air conditioning unit |
| CN204084980U (en) * | 2014-10-15 | 2015-01-07 | 珠海格力电器股份有限公司 | Liquid storage device and air conditioner with same |
| CN104613665A (en) * | 2015-02-02 | 2015-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioning system |
| CN104634001A (en) * | 2013-11-14 | 2015-05-20 | 美的集团股份有限公司 | Heat exchanger component and heat exchanging system and air-conditioner with the heat exchanger component |
| CN105222401A (en) * | 2015-10-12 | 2016-01-06 | 珠海格力电器股份有限公司 | Refrigerant circulation system and heat pump equipment with same |
| CN105402964A (en) * | 2015-12-14 | 2016-03-16 | 广东美的暖通设备有限公司 | Gas-liquid separator, refrigerating circulating device with gas-liquid separator and refrigerating system |
-
2016
- 2016-11-21 CN CN201611039571.1A patent/CN106765742A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3438037B2 (en) * | 1999-05-14 | 2003-08-18 | シャープ株式会社 | Air circulation system and drying system and air conditioning system using the same |
| JP3823706B2 (en) * | 2000-09-07 | 2006-09-20 | 株式会社日立製作所 | Air conditioner |
| JP3918421B2 (en) * | 2000-09-21 | 2007-05-23 | 三菱電機株式会社 | Air conditioner, operation method of air conditioner |
| CN2763760Y (en) * | 2004-12-16 | 2006-03-08 | 上海大洋制冷工程有限公司 | Gas-liquid separator with heat regenerator function |
| CN201297813Y (en) * | 2008-10-31 | 2009-08-26 | 青岛海信日立空调系统有限公司 | Novel regenerative gas-liquid separator |
| JP2012163219A (en) * | 2009-06-11 | 2012-08-30 | Panasonic Corp | Heat pump system |
| JP2011112327A (en) * | 2009-11-30 | 2011-06-09 | Panasonic Corp | Air conditioner and refrigerating device |
| CN202993700U (en) * | 2012-12-18 | 2013-06-12 | 珠海格力电器股份有限公司 | Two-stage compression refrigeration system with liquid supplementing and cooling functions |
| CN203203289U (en) * | 2013-04-09 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104634001A (en) * | 2013-11-14 | 2015-05-20 | 美的集团股份有限公司 | Heat exchanger component and heat exchanging system and air-conditioner with the heat exchanger component |
| CN104019585A (en) * | 2014-06-24 | 2014-09-03 | 山东雅士股份有限公司 | Flooded evaporator and flooded air conditioning unit |
| CN204084980U (en) * | 2014-10-15 | 2015-01-07 | 珠海格力电器股份有限公司 | Liquid storage device and air conditioner with same |
| CN104613665A (en) * | 2015-02-02 | 2015-05-13 | 珠海格力电器股份有限公司 | Heat pump air conditioning system |
| CN105222401A (en) * | 2015-10-12 | 2016-01-06 | 珠海格力电器股份有限公司 | Refrigerant circulation system and heat pump equipment with same |
| CN105402964A (en) * | 2015-12-14 | 2016-03-16 | 广东美的暖通设备有限公司 | Gas-liquid separator, refrigerating circulating device with gas-liquid separator and refrigerating system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269138A (en) * | 2018-09-03 | 2019-01-25 | 南京天加环境科技有限公司 | A kind of multi-line system and its control method for preventing compressor from returning liquid |
| CN109269138B (en) * | 2018-09-03 | 2020-10-30 | 南京天加环境科技有限公司 | Multi-split system for preventing liquid return of compressor and control method thereof |
| CN109099609A (en) * | 2018-09-06 | 2018-12-28 | 珠海格力电器股份有限公司 | Heat pump set |
| CN109373636A (en) * | 2018-11-09 | 2019-02-22 | 珠海格力电器股份有限公司 | System and method for preventing liquid impact |
| CN109373636B (en) * | 2018-11-09 | 2023-07-04 | 珠海格力电器股份有限公司 | System and method for preventing liquid impact |
| CN112413954A (en) * | 2020-11-23 | 2021-02-26 | 珠海格力电器股份有限公司 | Air source heat pump hot water chilling unit control method and device and air conditioning system |
| CN112413954B (en) * | 2020-11-23 | 2021-11-16 | 珠海格力电器股份有限公司 | Air source heat pump hot water chilling unit control method and device and air conditioning system |
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