CN108344214A - The method for exhausting of exhaust apparatus, refrigerated air-conditioning system and incoagulable gas - Google Patents
The method for exhausting of exhaust apparatus, refrigerated air-conditioning system and incoagulable gas Download PDFInfo
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- CN108344214A CN108344214A CN201710058660.9A CN201710058660A CN108344214A CN 108344214 A CN108344214 A CN 108344214A CN 201710058660 A CN201710058660 A CN 201710058660A CN 108344214 A CN108344214 A CN 108344214A
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- evaporative condenser
- conditioning system
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- 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
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/04—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases
- F25B43/043—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for withdrawing non-condensible gases for compression type systems
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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
- F25B45/00—Arrangements for charging or discharging refrigerant
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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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
- F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
- F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements
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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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/001—Ejectors not being used as compression device
- F25B2341/0012—Ejectors with the cooled primary flow at high pressure
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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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
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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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
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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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a 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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/006—Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves
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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)
- Air-Conditioning For Vehicles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of exhaust apparatus and its method for the incoagulable gas in refrigerated air-conditioning system to be discharged.Exhaust apparatus includes evaporative condenser, it isolates liquid refrigerants and incoagulable gas by being condensed the mixed gas of the gaseous coolant come out from refrigeration system and incoagulable gas, and the liquid refrigerants of separation is introduced into refrigeration system, the incoagulable gas of separation is discharged.The method includes evaporative condenser process, exhaust process and discharge opeing process.The present invention can prevent incoagulable gas from being gathered in the condenser of refrigerated air-conditioning system, and thereby help to maintain the condensing pressure in condenser, ensure the refrigerating capacity and efficiency of air-conditioning refrigeration system, it is made safely and efficiently to run.
Description
Technical field
This patent disclosure relates generally to field of Refrigeration and Air-conditioning, more particularly, to arrange the incoagulable gas in refrigerated air-conditioning system
The device and discharge method gone out.
Background technology
Traditional refrigerated air-conditioning system includes compressor, four big component of condenser, throttling set and evaporator, cold for making
Matchmaker circulates wherein, to complete refrigeration cycle by the state change of refrigerant.Object to be cooled is guided to lead to
Pervaporation device, and heat exchange is carried out with the low temperature refrigerant in evaporator, it is cooled to achieve the purpose that.
For certain refrigerated air-conditioning systems for using low pressure refrigerant (such as R123, R1233zd), at runtime can
The low-pressure area of some subatmospheric power is formed in internal system.Air may penetrate into these low-pressure areas inside refrigeration system
In, and the incoagulable gas in air can gather within the condenser, lead to condenser degradation of heat exchange performance, it is empty to reduce refrigeration
The refrigerating capacity of adjusting system；Meanwhile therefore the condensing pressure in system can also increase, condensation temperature increases, and further results in compression
Machine delivery temperature increases, and power consumption increases, and the efficiency of refrigerated air-conditioning system reduces.In addition, due to excessive discharge temperature, may lead
The lubricating oil carbonization for causing compressor, influences lubricant effect, stuck compressor or may burn compressor electric motor when serious.
Therefore, it for the refrigerated air-conditioning system using low pressure refrigerant, needs aperiodically to detach and be discharged into and is
Incoagulable gas in system, to solve the above technical problems.
Invention content
According to the first aspect of the invention, the present invention provides a kind of incoagulability gas for being discharged in refrigerated air-conditioning system
The exhaust apparatus of body comprising：Evaporative condenser, the evaporative condenser are shell-and-tube heat exchanger, the evaporative condenser packet
Include shell-side and pipe side, shell-side/pipe that the mixed gas of the incoagulable gas and gaseous coolant passes through the evaporative condenser
Low-temperature receiver in side, with pipe side/shell-side carries out heat exchange, to which the mixed gas is separated into liquid refrigerants and incoagulability gas
Body.
According to the exhaust apparatus of above-mentioned first aspect, the evaporative condenser include mixed gas entrance, liquid outlet and
Gas vent, the mixed gas entrance are used for for introducing the mixed gas, the liquid outlet by the liquid of the separation
State refrigerant is introduced into the refrigerated air-conditioning system, and the incoagulable gas discharge that the gas vent is used to detach；The steaming
The condenser that feels cold further includes low-temperature receiver entrance and low-temperature receiver outlet, and the low-temperature receiver entrance is for introducing low-temperature receiver, and the low-temperature receiver outlet is for arranging
Go out low-temperature receiver.
According to the exhaust apparatus of above-mentioned first aspect, the evaporative condenser low-temperature receiver entrance connects with the refrigerated air-conditioning system
It is logical, a part for the low temperature refrigerant in the refrigerated air-conditioning system is introduced into the evaporative condenser, using as the row
The low-temperature receiver of device of air；And the evaporative condenser low-temperature receiver outlet is connected to the refrigerated air-conditioning system, will enter the steaming
The refrigerant to feel cold in condenser is led back in the refrigerated air-conditioning system.
Further include injector according to the exhaust apparatus of above-mentioned first aspect, the injector includes high pressure source inlet, liquid
Entrance and injector outlet, the high pressure source inlet is connected to the refrigerated air-conditioning system, by the height in refrigerated air-conditioning system
A part for pressure refrigerant is introduced into the injector, and the liquid inlet is connected to the liquid outlet of the evaporative condenser, institute
It states injector outlet to be connected to the refrigerated air-conditioning system, so that the liquid refrigerants of evaporative condenser separation passes through injector
It leads back in the refrigerated air-conditioning system.
According to the exhaust apparatus of above-mentioned first aspect, further include：Low-temperature receiver inlet control valve, by the cold of the evaporative condenser
Source inlet is connected to low-temperature receiver；The mixed gas entrance of the evaporative condenser is connected to described by mixed gas air intake control valve
In refrigerated air-conditioning system；The liquid outlet of the evaporative condenser is connected to by discharge opeing control valve with the refrigerated air-conditioning system；With
And gas exhausting valve, the gas outlet in the evaporative condenser is set.
Further include additional throttling set according to the exhaust apparatus of above-mentioned first aspect, is arranged in the evaporative condenser
Low-temperature receiver entrance and refrigerated air-conditioning system between；Injector, the injector include high pressure source inlet, liquid inlet and injector
Outlet, the high pressure source inlet are connected to the refrigerated air-conditioning system, and the injector outlet connects with the refrigerated air-conditioning system
It is logical；The low-temperature receiver outlet of the evaporative condenser is connected to the liquid inlet of the injector by low-temperature receiver discharge control valve；Drain control
The liquid outlet of the evaporative condenser is connected to the liquid inlet of the injector by valve processed, so that the evaporation is cold
The liquid refrigerants detached in condenser can be led back by injector in the refrigerated air-conditioning system.
Further include high-voltage power supply control valve according to the exhaust apparatus of above-mentioned first aspect, the high pressure in the injector is set
Between source inlet and the refrigerated air-conditioning system.
According to the second aspect of the invention, the present invention provides a kind of refrigeration air-conditioning units, including：Evaporator, the steaming
It includes evaporator inlet and evaporator outlet to send out device；Compressor, the compressor include suction port of compressor and compressor outlet, institute
Suction port of compressor is stated to be connected to the evaporator outlet；Condenser, the condenser include condenser inlet and condensator outlet,
The condenser inlet is connected to the compressor outlet；Throttling set, the throttling set include throttling set entrance and section
Device outlet is flowed, the throttling set entrance is connected to the condensator outlet, the throttling set outlet and the evaporator
Entrance is connected to；It is characterized in that, further including the exhaust apparatus according to any one of claim 1-7, wherein the evaporation
The mixed gas entrance of condenser is connected to the condenser, the liquid outlet of the evaporative condenser and the refrigeration air-conditioner system
The low-pressure side of system is connected to.
According to the refrigerated air-conditioning system of above-mentioned second aspect, the mixed gas entrance of the evaporative condenser is connected to described
The top of condenser, so that the evaporative condenser entrance is connected to the condenser.
According to the refrigerated air-conditioning system of above-mentioned second aspect, low-temperature receiver entrance and the throttling set of the evaporative condenser
Outlet；And the low-temperature receiver outlet of the evaporative condenser is connected to the compressor air suction mouth or the evaporator.
According to the third aspect of the invention we, the present invention provides it is a kind of by the refrigerated air-conditioning system of such as second aspect not
The method of solidifying property gas discharge, the method includes：Evaporative condenser process, during the evaporative condenser, by the refrigeration
The mixed gas of gaseous coolant and incoagulable gas composition in the condenser of air-conditioner set introduces the pipe of the evaporative condenser
Side/shell-side, and low-temperature receiver is introduced to shell-side/pipe side of the evaporative condenser, to described be mixed by the evaporative condenser
The gaseous coolant closed in gas is condensed into liquid refrigerants, and thereby incoagulable gas is separated from the mixed gas；
The liquid refrigerants that the evaporative condenser detaches is discharged into the refrigerated air-conditioning system by discharge opeing process in the discharge opeing process
Low-pressure side in；And exhaust process, in the exhaust process, incoagulable gas that the pipe evaporative condenser is separated
Discharge.
According to the method for the above-mentioned third aspect, the low-temperature receiver is low to be come out from the throttling set of the refrigeration air-conditioning unit
Warm refrigerant.
Exhaust apparatus according to the present invention and its method can be by the mixed gas of gaseous coolant and incoagulable gas from sky
It is drawn in the refrigeration system of adjusting system, and by incoagulability gas by the gaseous coolant in mixed gas is condensed into liquid refrigerants
Body is detached and is discharged from gaseous mixture head.The present invention can prevent incoagulable gas in the condenser of refrigerated air-conditioning system as a result,
Middle accumulation, and thereby help to maintain the condensing pressure in condenser, ensure the refrigerating capacity and efficiency of air-conditioning refrigeration system, makes it
Safely and efficiently run.
Description of the drawings
Fig. 1 shows the main composition schematic diagram of traditional refrigerated air-conditioning system；
Fig. 2 shows one embodiment of exhaust apparatus of the present invention；
Fig. 3 shows the refrigerated air-conditioning system with exhaust apparatus shown in Fig. 2；
Fig. 4 A-4C show the process of the discharge incoagulable gas of the refrigerated air-conditioning system in Fig. 3；
Fig. 5 shows another embodiment of exhaust apparatus of the present invention；
Fig. 6 shows the refrigerated air-conditioning system with exhaust apparatus shown in fig. 5；
Fig. 7 A-7C show the process of the discharge incoagulable gas of the refrigerated air-conditioning system in Fig. 6.
Specific implementation mode
The various specific implementation modes of the present invention are described below with reference to the attached drawing for constituting this specification part.
In the conceived case, the identical or similar reference numeral used in the present invention refers to identical or corresponding component.
Traditional refrigerated air-conditioning system is introduced referring initially to Fig. 1.As shown in Figure 1, refrigerated air-conditioning system 100 includes mainly
Evaporator 110, compressor 120, condenser 130 and throttling set 140, they connect into a closed system by pipeline, and
It is filled with refrigerant in systems.Specifically, as shown in Figure 1, evaporator 110 includes entrance 110a and outlet 110b, compressor
120 include entrance 120a and outlet 120b, and condenser 130 includes entrance 130a and outlet 130b, and throttling set 140 includes entrance
140a and outlet 140b.These components are connected by pipeline as follows：The entrance 120a of compressor 120 is connected to evaporator
The entrance 130a of 110 outlet 110b, condenser 130 are connected to the outlet 120b of compressor 120, the entrance of throttling set 140
140a is connected to the outlet 130b of condenser 130, and the outlet 140b of throttling set 140 is connected to the entrance of evaporator 110
110a.Hollow arrow in Fig. 1 indicates trend of the refrigerant in refrigerated air-conditioning system.In process of refrigerastion, throttling set 140 will
By condenser 130 highly pressurised liquid coolant throttle, make its pressure reduction；Low pressure refrigerant in the evaporator 110 with cooled pair
As (arrow out in Fig. 1 into the arrow of evaporator 110 and from evaporator 110 indicates the object such as chilled water that is cooled
Trend) heat exchange occurs, the heat for absorbing the object that is cooled is vaporized and evaporates；The refrigerant steam generated is vaporized by compressor
120 suckings, are discharged with high pressure after compression；The high pressure gaseous refrigerant that compressor 120 is discharged is in the condenser 130 and environment
Medium (enter condenser 130 in Fig. 1 and indicate the trend of surrounding medium such as cooling water from the arrow of condenser 130 out) carries out
Heat exchange releases heat and is liquefied and condenses；High temperature refrigerant liquid again flows through throttling set 140 and is depressured.So week and
It renews, generates continuous cooling effect.
In refrigerated air-conditioning system 100 shown in Fig. 1, if the refrigerant used for low pressure refrigerant, such as R123, R1233zd
Deng, then had in condenser 130 from air incoagulable gas accumulation.For this purpose, the exhaust apparatus of the present invention is by incoagulability
Gas is exported from condenser 130.But due in condenser 130 there is also gaseous coolant, led by incoagulable gas
Gaseous coolant can be exported while going out.Therefore, exhaust apparatus of the invention is first by the mixing of gaseous coolant and incoagulable gas
Object detaches, and then sends the refrigerant of separation back to refrigeration system, and by the incoagulable gas vented exhaust system of separation to big compression ring
In border.
Fig. 2 show exhaust apparatus according to an embodiment of the invention, and wherein arrow indicates the trend of low-temperature receiver.Such as Fig. 2
Shown, in this embodiment, exhaust apparatus 200 includes evaporative condenser 210, and evaporative condenser 210 is shell-and-tube heat exchanger,
Including pipe side 214 and shell-side 218.Wherein, one of pipe side and shell-side be used to accommodate incoagulable gas in refrigeration system and
The mixed gas of gaseous coolant, and the other of pipe side and shell-side be for accommodating low-temperature receiver so that mixed gas can with it is cold
Source carries out heat exchange, to which mixed gas is separated into liquid refrigerants and incoagulable gas, in order to which incoagulable gas is independent
Discharge.In order to facilitate illustrating and be conveniently described below in detail, in fig. 2, by shell-side 218 for accommodating low-temperature receiver, and by pipe side 214
Mixed gas for accommodating incoagulable gas and gaseous coolant.However, it will be understood by those skilled in the art that Fig. 2 is only
One example, by pipe side for accommodating low-temperature receiver, and the mixed gas that shell-side is used to accommodate incoagulable gas and gaseous coolant is same
Sample can realize the function of evaporative condenser.
Still as shown in Fig. 2, pipe side 214 includes mixed gas entrance 214a, liquid outlet 214b and gas vent 214c,
Mixed gas entrance 214a is used to be introduced into the mixed gas of the incoagulable gas and gaseous coolant that are discharged in refrigerated air-conditioning system, liquid
Body outlet 214b is for the liquid refrigerants detached in pipe side 214 to be transmitted back in refrigerated air-conditioning system, and gas vent 214c
Incoagulable gas discharge for will be detached in pipe side 214.Shell-side 218 includes that low-temperature receiver entrance 218a and low-temperature receiver export 218b,
Low-temperature receiver entrance 218a is used to low-temperature receiver introducing shell-side 218, and low-temperature receiver exports low-temperature receivers of the 218b for that will introduce from 218 row of shell-side
Go out.
Exhaust apparatus 200 can also include injector 230, and injector 230 can be at the liquid outlet 214b of pipe side 214
Negative pressure is generated, so that the liquid refrigerants detached in pipe side 214 is inhaled into injector 230, and be discharged by injector 230.However it needs
It should be noted that exhaust apparatus 200 can not also be equipped with injector 230, in the case where being not provided with injector 230, pipe side 214
The liquid refrigerants of middle separation can also be discharged.It is intended merely to accelerate the liquid refrigerants of the separation in pipe side 214 using injector 230
Discharge.As shown in Fig. 2, injector 230 includes high pressure source inlet 231, liquid inlet 232 and injector outlet 233, high-voltage power supply enters
Mouth 231 by high-voltage power supply for introducing injector 230, and liquid inlet 232 is connected to the liquid outlet 214b of pipe side 214, and injection
Device outlet 233 is connected with the low-pressure side of refrigerated air-conditioning system.
Still as shown in Fig. 2, evaporative condenser low-temperature receiver entrance 218a, mixed gas entrance 214a and injector 230
231 upstream of high pressure source inlet be respectively equipped with low-temperature receiver control valve 270, mixed gas air intake control valve 240 and high-voltage power supply control valve
250, it is respectively used to the entrance of control gas and/or liquid.Exhaust control is additionally provided at the gas vent 214c of evaporative condenser
Valve 260 processed, the discharge of the on-condensible gas for controlling separation.In addition, in the liquid inlet of injector 230 232 and shell-side 214
Discharge opeing control valve 280 is additionally provided between liquid outlet 214b
According to one of which embodiment as mentioned in the embodiment of figure 2, for providing cold for evaporative condenser 210
Low-temperature receiver uses a part of low temperature refrigerant in refrigerated air-conditioning system, using exhaust apparatus and the refrigeration air-conditioner system of this embodiment
The connection type of system is as shown in Figure 3.It should be noted that being steamed when being used as using a part of low temperature refrigerant in refrigerated air-conditioning system
Feel cold condenser 210 low-temperature receiver when, finally need to lead back to this part refrigerant in refrigerated air-conditioning system, to maintain refrigeration air-conditioner system
The total amount of refrigerant remains unchanged in system so that refrigerated air-conditioning system being capable of normal operation.However, principle according to the present invention, is adopted
The incoagulability in embodiment discharge refrigerated air-conditioning system as shown in Figure 2 can also be utilized with the low-temperature receiver other than refrigerated air-conditioning system
Gas.
The row is introduced with reference to the refrigerated air-conditioning system 100 ' shown in Fig. 3 with exhaust apparatus 200 shown in Fig. 2
Connection type of the device of air 200 in refrigerated air-conditioning system 100 '.As shown in figure 3, the low-temperature receiver entrance 218a of evaporative condenser 210
Be connected to the outlet 140b ' of the throttling set 140 ' of refrigerated air-conditioning system 100 ', low-temperature receiver control valve 270 be connected to the above two it
Between.The refrigerant come out from throttling set 140 ' is low temperature refrigerant, can be that evaporative condenser 210 provides enough colds.Evaporation
The mixed gas entrance 214a of condenser 210 is connected to the condenser 130 ' of refrigerated air-conditioning system 100 ', and mixed gas is into gas control
Valve 240 processed is connected between the above two.As a preferred embodiment, the mixed gas entrance of evaporative condenser 210
214a is connected to the top of the condenser 130 ' of refrigerated air-conditioning system 100 ', since incoagulable gas accumulates in condenser 130 '
Top, therefore this connection type is more advantageous to incoagulable gas discharge from condenser 130 '.The low-temperature receiver of evaporative condenser 210
Outlet 218b is connected to the evaporator 110 ' of refrigerated air-conditioning system, and the refrigerant come out from shell-side 218 is transmitted back to refrigeration air-conditioner
In system.It is worth noting that, the low-temperature receiver outlet 218b of evaporative condenser 210 can also be with the entrance 120a ' of compressor 120 '
The refrigerant come out from shell-side 218 is transmitted back in refrigerated air-conditioning system by connection.The high pressure entry 231 of injector 230 and refrigeration
The high-pressure side (the outlet 120b ' of such as compressor 120 ') of air-conditioning system is connected to, and the high pressure for that will be come out from compressor 120 ' is cold
The part of matchmaker is introduced into injector 230, as the working gas of injector 230.High-voltage power supply control valve 250 is arranged in height
Between potential source entrance 231 and the outlet 120b ' of compressor 120 '.The low-pressure side of injector outlet 233 and refrigerated air-conditioning system is (such as
Evaporator 110 ') connection, the liquid refrigerants separated by evaporative condenser 210 is transmitted back in refrigerated air-conditioning system.
As shown in Figure 3 using a part of low temperature refrigerant of refrigerated air-conditioning system 100 ' itself as the cold of exhaust apparatus 200
Source, it is no longer necessary to a set of independent cooling system individually be arranged for exhaust apparatus 200, thus enable that the component of exhaust system more
To simplify so that the structure of entire air-conditioning system is more compact.
It is how to utilize row with reference to specifically being introduced shown in Fig. 4 A-4C using refrigerated air-conditioning system 100 ' shown in Fig. 3
Incoagulable gas is discharged in device of air 200, and in each figure, hollow arrow represents refrigerant and filled in refrigerated air-conditioning system and exhaust
Trend in setting.By and large, the course of work of exhaust apparatus is divided into three phases, i.e., evaporative condenser process, discharge opeing process and
Exhaust process, wherein evaporative condenser process are to detach incoagulable gas from its mixed gas with gaseous coolant to realize
Out, discharge opeing process is in order to which the refrigerant of separation to be transmitted back in refrigerated air-conditioning system, and exhaust process is to isolate
Incoagulable gas be discharged in ambient air.Incoagulable gas is discharged from refrigerated air-conditioning system using exhaust apparatus in the present invention
Method is also embodied in the course of work being described below.
Fig. 4 A show evaporative condenser process.During evaporative condenser, low-temperature receiver control valve 270 and mixed gas are into gas control
Valve 240 processed is opened, and remaining valve, i.e. high-voltage power supply control valve 250, gas exhausting valve 260 and discharge opeing control valve 280 are turned off.
The low temperature refrigerant come out from the outlet 140b ' of throttling set 140 ' is divided into two-way, and refrigerant enters evaporator 110 ' and steamed all the way
Hair, another way refrigerant enters through low-temperature receiver control valve 270 is used as low-temperature receiver in shell-side 218.The incoagulability gas gathered in condenser 130 '
Know from experience with the gaseous coolant in condenser 130 ' as together with mixed gas into pipe side 214, and with the low temperature in shell-side 218
Refrigerant carries out heat exchange, so that the gaseous coolant in mixed gas is condensed into liquid refrigerants.It is condensed and isolates
Liquid refrigerants is stored in 214 bottom of pipe side, and the incoagulable gas isolated is stored in 214 top of pipe side, thus by incoagulability
Gas is separated with refrigerant.And the low temperature refrigerant in shell-side 218 is then evaporated by above-mentioned heat exchange becomes gas, and via shell
The low-temperature receiver outlet 218b of side 218 enters in evaporator 110 '.
Fig. 4 B show discharge opeing process.When the liquid refrigerants in pipe side 214 reach a certain height, that is, open drain
Journey.In discharge opeing process, high-voltage power supply control valve 250 and discharge opeing control valve 280 are opened, and remaining valve, i.e. low-temperature receiver control valve
270, mixed gas air intake control valve 240 and gas exhausting valve 260 are turned off.At this point, going out from the outlet 120b ' of compressor 120 '
The high pressure refrigerant come enters through high-voltage power supply control valve 250 in injector 230, by the ejector action of injector 230 by pipe side 214
The liquid refrigerants of middle storage is drawn, and is discharged into evaporator 110 ' via injector 230.
Fig. 4 C show exhaust process.In exhaust process, gas exhausting valve 260 is opened, and remaining valve, i.e. low-temperature receiver control
Valve 270, mixed gas air intake control valve 240, high-voltage power supply control valve 250 and discharge opeing control valve 280 processed are turned off.At this point, shell-side
Incoagulable gas in 214 is discharged by gas exhausting valve 260 in ambient air.
The present invention also provides another embodiments of exhaust apparatus, as shown in figure 5, wherein arrow indicates walking for low-temperature receiver
To.In this embodiment, exhaust apparatus 300 includes evaporative condenser 310 similar with exhaust apparatus 200, exhaust apparatus 300 with
The main distinction of exhaust apparatus 200 shown in Fig. 2 is that exhaust apparatus 300 is provided in the upstreams low-temperature receiver entrance 318a of pipe side 318
One additional throttling set 370, the temperature for further decreasing low-temperature receiver before low-temperature receiver enters shell-side 318, to carry
The condensation number of high evaporative condenser.
Exhaust apparatus 300 can also accelerate liquid refrigerants from evaporation as exhaust apparatus 200 using injector 330
It is discharged in condenser 310.The low-temperature receiver of exhaust apparatus 300 can also use the refrigerant of refrigerated air-conditioning system itself, that is, will be from refrigeration
Low-temperature receiver of the part for the refrigerant that the throttling set of air-conditioning system comes out as exhaust apparatus.When using refrigerated air-conditioning system itself
Refrigerant as low-temperature receiver when, due to enter shell-side 318 in low-temperature receiver refrigerant have passed through two throttling set (i.e. refrigerated air-conditioning systems
Throttling set and exhaust apparatus 300 in additional throttling set 370), therefore its pressure will be less than refrigerated air-conditioning system it is low
Press the refrigerant pressure in side.In this case, if sending the refrigerant as low-temperature receiver in shell-side 318 back to refrigerated air-conditioning system
Low-pressure side (entrance of such as evaporator or compressor) in, need increase auxiliary pumping equipment could realize.The auxiliary drain fills
Injector 330 shown in fig. 5 can be selected by setting.At this point it is possible to realize two functions simultaneously with injector 330, both it is used as shell-side
318 auxiliary pumping equipment, and the drain for accelerating pipe side 314.In order to realize above-mentioned two function, need in shell-side 318
A control valve, i.e. low-temperature receiver discharge control valve are respectively set between injector 330 and between pipe side 314 and injector 330
390 and discharge opeing control valve 380, the condensation evaporation process and discharge opeing process of exhaust apparatus 300 could be kept apart (this in this way
It can find out from the course of work of exhaust apparatus 300 described below).
In addition, it is similar to exhaust apparatus 200 shown in Fig. 2, it also is provided with gas exhaust inspecting in exhaust apparatus 300 shown in fig. 5
Valve 360, mixed gas air intake control valve 340 and high-voltage power supply control valve 350.
Fig. 6 shows the refrigerated air-conditioning system 100 " with exhaust apparatus 300 shown in fig. 5, exhaust apparatus 300 and refrigeration
The connection type of air-conditioning system 100 " is similar to the connection type of exhaust apparatus 200 and refrigerated air-conditioning system 100 ', herein no longer
It is described in detail.
Since exhaust apparatus 300 is than exhaust apparatus more than 200 two control valves (i.e. low-temperature receiver discharge control valve 390 and drains
Control valve 380), therefore the course of work and refrigeration of incoagulable gas are discharged using exhaust apparatus 300 for refrigerated air-conditioning system 100 "
Air-conditioning system 100 ' is slightly had using the on off state that each control valve in the course of work of incoagulable gas is discharged in exhaust apparatus 200
Difference, therefore for the sake of clarity, exhaust apparatus is used with reference to refrigerated air-conditioning system 100 " is specifically introduced shown in Fig. 7 A-7C
The course of work of 300 discharge incoagulable gas.Still, in each figure, hollow arrow represents refrigerant in refrigeration system and exhaust
Trend in device, the course of work of exhaust apparatus are divided into three phases, i.e., evaporative condenser process, discharge opeing process and were vented
Journey.
Fig. 7 A show evaporative condenser process.During evaporative condenser, adds throttling set 370 and open, mixed gas
Air intake control valve 340, high-voltage power supply control valve 350 and low-temperature receiver discharge control valve 390 are also opened, and discharge opeing control valve 380 and exhaust
Control valve 360 is closed.The low temperature refrigerant come out from the outlet 140b " of throttling set 140 " is divided into two-way, and refrigerant enters steaming all the way
Hair device 110 " is evaporated, and after another way refrigerant is via 370 further reducing pressure by regulating flow of additional throttling set, becomes lower temperature
Two-phase refrigerant, and enter and be used as low-temperature receiver in shell-side 318.The incoagulable gas gathered in condenser 130 " can in condenser 130 "
Gaseous coolant as mixed gas together enter pipe side 314 in, and in shell-side 318 low temperature refrigerant carry out heat exchange, from
And the gaseous coolant in mixed gas is made to be condensed into liquid refrigerants.The liquid refrigerants for being condensed and detaching is stored in pipe side
314 bottoms, and the incoagulable gas detached is stored in 314 top of pipe side, thus separates incoagulable gas and refrigerant.And
Low temperature refrigerant in shell-side 318 is then evaporated by above-mentioned heat exchange becomes gas, and then, from the outlet of compressor 120 "
The high pressure refrigerant that 120b " comes out enters via high-voltage power supply control valve 350 in injector 330, in the ejector action of injector 330
Under, the gaseous coolant in shell-side 318 enters the evaporator 110 " of refrigerated air-conditioning system via injector 330, and it is empty to return to refrigeration
In adjusting system.
Fig. 7 B show discharge opeing process.When the liquid refrigerants in pipe side 314 reach a certain height, that is, open drain
Journey.In discharge opeing process, high-voltage power supply control valve 350, low-temperature receiver discharge control valve 390 and discharge opeing control valve 380 are opened, and building-out section
Stream device 370, mixed gas air intake control valve 340 and gas exhausting valve 360 are turned off.At this point, from the outlet of compressor 120 "
The high pressure refrigerant that 120b " comes out enters through high-voltage power supply control valve 350 in injector 330, will by the ejector action of injector 330
The liquid refrigerants stored in pipe side 314 is drawn, and is discharged into evaporator 110 " via injector 330.
Fig. 7 C show exhaust process.In exhaust process, gas exhausting valve 360 is opened, and remaining valve, i.e. building-out section
Flow device 370, mixed gas air intake control valve 340, high-voltage power supply control valve 350, low-temperature receiver discharge control valve 390 and drain control
Valve 380 is turned off.At this point, the incoagulable gas in pipe side 314 is discharged by gas exhausting valve 360 in ambient air.
Exhaust apparatus 300 shown in fig. 5 is compared with exhaust apparatus 200 shown in Fig. 2, due to further reduced into steaming
Feel cold condenser low-temperature receiver temperature, therefore be more advantageous to improve exhaust apparatus efficiency.
It can see from the course of work of above-mentioned exhaust apparatus 200 and 300, exhaust apparatus and refrigerated air-conditioning system itself
Refrigeration system together forms a closed system, and the refrigeration that the refrigerant in refrigeration system had both executed refrigerated air-conditioning system is followed
Ring, while again cold is provided for separation incoagulable gas as the low-temperature receiver of exhaust apparatus.Also, the high pressure in refrigeration system is cold
Matchmaker can also help the refrigerant into exhaust apparatus to return in refrigeration system as high-voltage power supply.Using the exhaust apparatus of these modes,
Entire refrigerated air-conditioning system is not only compact in structure, but also can realize centralized control.
It is worth noting that, exhaust apparatus does not need to work always in the operational process of refrigerated air-conditioning system, but
Work is just opened when only the accumulated amount of incoagulable gas within the condenser being needed to reache a certain level.The drain of exhaust apparatus
Journey and exhaust process also need not always be carried out when exhaust apparatus works, but only when in evaporative condenser liquid refrigerants and
Incoagulable gas just needs to open the two processes when storing to a certain extent.
In addition, the present invention also provides the methods that condensed gas is discharged from the condenser of refrigerated air-conditioning system.Above-mentioned side
Method uses the exhaust apparatus by taking Fig. 2 and Fig. 5 as an example to realize, and shown in the above method Fig. 2 and Fig. 5 for being also described in detail above
Exhaust apparatus the course of work in be illustrated.
Although present invention is described for the specific implementation mode shown in refer to the attached drawing, but it is to be understood that not
Away from present invention teach that spirit and scope and background under, exhaust apparatus of the invention and its method for exhausting can there are many variations
Form.Art technology those of ordinary skill will additionally appreciate different modes to change in disclosed embodiment of this invention
CONSTRUCTED SPECIFICATION, but these change each fall within the present invention and spirit and scope by the claims in.
Claims (12)
1. a kind of exhaust apparatus, the incoagulable gas for being discharged in refrigerated air-conditioning system, which is characterized in that including：
Evaporative condenser, the evaporative condenser are shell-and-tube heat exchanger, and the evaporative condenser includes shell-side and pipe side, described
The mixed gas of incoagulable gas and gaseous coolant is and cold in pipe side/shell-side by shell-side/pipe side of the evaporative condenser
Source carries out heat exchange, to which the mixed gas is separated into liquid refrigerants and incoagulable gas.
2. exhaust apparatus according to claim 1, which is characterized in that
The evaporative condenser includes mixed gas entrance, liquid outlet and gas vent, and the mixed gas entrance is for drawing
Entering the mixed gas, the liquid outlet is used to the liquid refrigerants of the separation being introduced into the refrigerated air-conditioning system, and
The incoagulable gas discharge that the gas vent is used to detach；The evaporative condenser further includes that low-temperature receiver entrance and low-temperature receiver go out
Mouthful, the low-temperature receiver entrance is for introducing low-temperature receiver, and the low-temperature receiver outlet is for being discharged low-temperature receiver.
3. exhaust apparatus according to claim 2, which is characterized in that
The evaporative condenser low-temperature receiver entrance is connected to the refrigerated air-conditioning system, by the low temperature in the refrigerated air-conditioning system
A part for refrigerant is introduced into the evaporative condenser, using the low-temperature receiver as the exhaust apparatus；And
The evaporative condenser low-temperature receiver outlet is connected to the refrigerated air-conditioning system, will be entered cold in the evaporative condenser
Matchmaker leads back in the refrigerated air-conditioning system.
4. exhaust apparatus according to claim 3, which is characterized in that further include injector, the injector includes high pressure
Source inlet, liquid inlet and injector outlet, the high pressure source inlet is connected to the refrigerated air-conditioning system, by refrigeration air-conditioner
A part for high pressure refrigerant in system is introduced into the injector, the liquid discharge of the liquid inlet and the evaporative condenser
Mouth connection, the injector outlet is connected to the refrigerated air-conditioning system, so that the liquid refrigerants of evaporative condenser separation
It is led back in the refrigerated air-conditioning system by injector.
5. exhaust apparatus according to claim 4, which is characterized in that further include：
The low-temperature receiver entrance of the evaporative condenser is connected to low-temperature receiver by low-temperature receiver inlet control valve；
The mixed gas entrance of the evaporative condenser is connected to the refrigerated air-conditioning system by mixed gas air intake control valve
In；
The liquid outlet of the evaporative condenser is connected to by discharge opeing control valve with the refrigerated air-conditioning system；And
The gas outlet in the evaporative condenser is arranged in gas exhausting valve.
6. exhaust apparatus according to claim 2, which is characterized in that further include：
Additional throttling set is arranged between the low-temperature receiver entrance and refrigerated air-conditioning system of the evaporative condenser；
Injector, the injector include high pressure source inlet, liquid inlet and injector outlet, the high pressure source inlet with it is described
Refrigerated air-conditioning system is connected to, and the injector outlet is connected to the refrigerated air-conditioning system；
The low-temperature receiver outlet of the evaporative condenser is connected to the liquid inlet of the injector by low-temperature receiver discharge control valve；
The liquid outlet of the evaporative condenser is connected to the liquid inlet of the injector by discharge opeing control valve, so that
The liquid refrigerants detached in the evaporative condenser can be led back by injector in the refrigerated air-conditioning system.
7. exhaust apparatus according to claim 5 or 6, which is characterized in that further include：
High-voltage power supply control valve is arranged between the high pressure source inlet and the refrigerated air-conditioning system of the injector.
8. a kind of refrigeration air-conditioning unit, including：
Evaporator, the evaporator include evaporator inlet and evaporator outlet；
Compressor, the compressor include suction port of compressor and compressor outlet, and the suction port of compressor goes out with the evaporator
Mouth connection；
Condenser, the condenser include condenser inlet and condensator outlet, and the condenser inlet goes out with the compressor
Mouth connection；
Throttling set, the throttling set include that throttling set entrance and throttling set export, the throttling set entrance and institute
Condensator outlet connection is stated, the throttling set outlet is connected to the evaporator inlet；
It is characterized in that, further including the exhaust apparatus according to any one of claim 1-7, wherein the evaporative condenser
The mixed gas entrance of device is connected to the condenser, the liquid outlet of the evaporative condenser and the refrigerated air-conditioning system
Low-pressure side is connected to.
9. refrigeration air-conditioning unit according to claim 8, which is characterized in that
The mixed gas entrance of the evaporative condenser is connected to the top of the condenser, so that the evaporative condenser entrance
It is connected to the condenser.
10. refrigeration air-conditioning unit according to claim 8, which is characterized in that
The low-temperature receiver entrance of the evaporative condenser and the throttling set outlet；And
The low-temperature receiver outlet of the evaporative condenser is connected to the compressor air suction mouth or the evaporator.
11. a kind of method by the incoagulable gas discharge in refrigeration air-conditioning unit as claimed in claim 8, feature exists
In, the method includes：
Evaporative condenser process, during the evaporative condenser, by the gaseous coolant in the condenser of the refrigeration air-conditioning unit
Pipe side/shell-side of the evaporative condenser is introduced with the mixed gas of incoagulable gas composition, and low-temperature receiver is introduced into the evaporation
The shell-side of condenser/pipe side, to which the gaseous coolant in the mixed gas is condensed into liquid by the evaporative condenser
Refrigerant, and thereby incoagulable gas is separated from the mixed gas；
The liquid refrigerants that the evaporative condenser detaches is discharged into the refrigeration air-conditioner by discharge opeing process in the discharge opeing process
In the low-pressure side of system；With
Exhaust process, in the exhaust process, the incoagulable gas that the pipe evaporative condenser is separated is discharged.
12. according to the method for claim 11, which is characterized in that
The low-temperature receiver is the low temperature refrigerant come out from the throttling set of the refrigeration air-conditioning unit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058660.9A CN108344214B (en) | 2017-01-23 | 2017-01-23 | Exhaust device, refrigeration air-conditioning system and exhaust method of non-condensable gas |
| PCT/IB2018/050372 WO2018134789A1 (en) | 2017-01-23 | 2018-01-22 | Gas discharge device, refrigeration and air conditioning system, and method for discharging non-condensable gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058660.9A CN108344214B (en) | 2017-01-23 | 2017-01-23 | Exhaust device, refrigeration air-conditioning system and exhaust method of non-condensable gas |
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| Publication Number | Publication Date |
|---|---|
| CN108344214A true CN108344214A (en) | 2018-07-31 |
| CN108344214B CN108344214B (en) | 2020-03-17 |
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| CN201710058660.9A Active CN108344214B (en) | 2017-01-23 | 2017-01-23 | Exhaust device, refrigeration air-conditioning system and exhaust method of non-condensable gas |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108344214B (en) |
| WO (1) | WO2018134789A1 (en) |
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| CN109682119A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | A kind of evaporation coil of the efficient liquid separation function of band |
| CN110260436A (en) * | 2019-07-11 | 2019-09-20 | 珠海格力电器股份有限公司 | air conditioning system and air conditioning system control method |
| CN110822774A (en) * | 2018-08-09 | 2020-02-21 | 麦克维尔空调制冷(武汉)有限公司 | Refrigerant purification system and heat exchange system comprising same |
| CN111981628A (en) * | 2020-07-27 | 2020-11-24 | 珠海格力电器股份有限公司 | Simple and effective refrigerant separation and purification system, control method and air conditioning unit |
| US11686515B2 (en) | 2018-12-03 | 2023-06-27 | Carrier Corporation | Membrane purge system |
| US11911724B2 (en) | 2018-12-03 | 2024-02-27 | Carrier Corporation | Enhanced refrigeration purge system |
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| IT202000011326A1 (en) * | 2020-05-15 | 2021-11-15 | Sime S R L | APPARATUS AND METHOD FOR LIMITING WORKING FLUID LOSSES IN A REFRIGERATING PLANT |
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Also Published As
| Publication number | Publication date |
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| WO2018134789A1 (en) | 2018-07-26 |
| CN108344214B (en) | 2020-03-17 |
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