CN105605837A - Gas-liquid separator and refrigeration cycle device with same and refrigeration system with same - Google Patents
Gas-liquid separator and refrigeration cycle device with same and refrigeration system with same Download PDFInfo
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- CN105605837A CN105605837A CN201510932635.XA CN201510932635A CN105605837A CN 105605837 A CN105605837 A CN 105605837A CN 201510932635 A CN201510932635 A CN 201510932635A CN 105605837 A CN105605837 A CN 105605837A
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- gas
- pressure
- liquid separator
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- escape pipe
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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
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
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- Power Engineering (AREA)
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Abstract
The invention discloses a gas-liquid separator and a refrigeration cycle device with the same and a refrigeration system with the same. The gas-liquid separator comprises a barrel, a low-pressure gas inlet pipe, a low-pressure gas outlet pipe and a high-pressure pipeline suitable for circulating a refrigerant; a separating space is defined in the barrel; one end of the low-pressure gas inlet pipe stretches into the separating space to discharge the refrigerant to be subjected to gas-liquid separation into the separating space; the low-pressure gas outlet pipe stretches into the separating space to discharge out the gas-state refrigerant in the separating space, and an oil return opening is formed in the portion, located on the lower portion of the separating space, of the low-pressure gas outlet pipe; the high-pressure pipeline is provided with a heat exchange pipeline portion which is located in the separating space to perform heat exchange with the refrigerant in the separating space, the heat exchange pipeline portion comprises two main flow ways and multiple branch flow ways, the two ends of each branch flow ways are communicated with the two main flow ways respectively, and the ends of the two main flow ways stretch out of the barrel to define a first inlet and outlet and a second inlet and outlet respectively. According to the gas-liquid separator, the effects of a subcooler, a heat regenerator and gas-liquid separation are simultaneously achieved.
Description
Technical field
The present invention relates to refrigerating field, especially relate to a kind of gas-liquid separator and there is its freezing cycle device, the system of freezingSystem.
Background technology
Existing air-conditioning vapour liquid separator, for realizing vapor-liquid separation, is mainly that unnecessary oil and refrigerant in compressor are depositedStorage, appropriate gaseous coolant and lubricating oil enter compressor and compress. Under extreme operating condition, due to reasons such as temperature are low,The easy absorbing gas belt liquid of compressor, makes compressor occur the phenomenon of liquid hammer, causes the Performance And Reliability of compressor to reduce. And,Fluid in vapour liquid separator comes from evaporimeter, and the temperature of these fluids is lower, and part cold cannot be utilized, and causesWaste.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.
For this reason, the present invention proposes a kind of gas-liquid separator, has played the effect of subcooler, regenerator and gas-liquid separation simultaneously.
The present invention also proposes a kind of freezing cycle device with above-mentioned gas-liquid separator.
The present invention also proposes a kind of refrigeration system with above-mentioned gas-liquid separator.
According to the gas-liquid separator of the embodiment of the present invention, comprising: cylindrical shell, limits separated space in described cylindrical shell; Low compressing intoTracheae, one end of described low-pressure inlet pipe extend in described separated space to enter the refrigerant for the treatment of gas-liquid separation; Low pressure is given vent to angerPipe, described low pressure escape pipe extend in described separated space to discharge the gaseous coolant in described separated space, described low pressureThe part that is positioned at described separated space bottom of escape pipe is provided with oil return opening; Be suitable for the circulating pressure piping of refrigerant, described heightPressure pipeline has and is positioned at the heat exchange pipeline part of described separated space to carry out heat exchange with the refrigerant of described separated space, instituteState heat exchange pipeline part and comprise two primary flow path and multiple points of streams, the two ends of each described point of stream respectively with described two mastersStream is communicated with, and the end of described two primary flow path is stretched out respectively described cylindrical shell and imported and exported to limit the first import and export and second.
According to the gas-liquid separator of the embodiment of the present invention, by being provided with pressure piping, the refrigerant in pressure piping and separated spaceIn refrigerant carry out heat exchange, thereby make gas-liquid separator play the effect of subcooler, regenerator and gas-liquid separation simultaneously,Increase degree of supercooling and the degree of superheat of freezing cycle device, thereby improved the refrigerating efficiency of compressor, improved freeze cycleThe COP of device.
In some embodiments of the invention, in described low-pressure inlet pipe, be provided with bolster.
Particularly, a part of tube wall of described low-pressure inlet pipe bends inwards to limit described buffering after separating with all the other tube wallsPart.
In some embodiments of the invention, described low pressure escape pipe be positioned at described separated space and contiguous described low extrusionThe part of the outlet side of tracheae is provided with return-air hole.
Alternatively, described pressure piping also comprises two current dividers, and each described current divider has total head piece and multiple subflow mouth,Described two primary flow path are connected with described total head piece of described two current dividers respectively, and described multiple points of streams are respectively with described twoThe subflow mouth of individual current divider is connected.
In some embodiments of the invention, gas-liquid separator also comprises filter, and described filter is located at described oil return opening place.
In some embodiments of the invention, in described heat exchange pipeline part, overcoat has heat exchange fin.
In some embodiments of the invention, the bottom of described low-pressure inlet pipe extends beyond entering of described low pressure escape pipe downwardsGas end.
In some embodiments of the invention, the inlet end of the outlet side of described low pressure escape pipe and described low pressure escape pipe inHeart line and, angle between the outlet side of described low pressure escape pipe and the line of centres of described low-pressure inlet pipe is A, described A＞0。
According to the freezing cycle device of the embodiment of the present invention, comprising: compressor, described compressor has exhaust outlet and gas returning port;Commutation assembly, described commutation assembly comprises the first valve port to the four valve ports, described the first valve port and the second valve port and the 3rd valve portIn one of them be communicated with, described the 4th valve port is communicated with another in described the second valve port and described the 3rd valve port, described inThe first valve port is connected with described exhaust outlet; Outdoor heat exchanger and indoor heat exchanger, the two ends of described outdoor heat exchanger respectively with instituteState the second valve port and be connected with the first end of first throttle device, the first end of described indoor heat exchanger is connected with described the 3rd valve port;Gas-liquid separator according to the above embodiment of the present invention, described first of described pressure piping is imported and exported and described first throttle dressThe second end of putting is connected, and described second of described pressure piping is imported and exported and is connected with the second end of described indoor heat exchanger, described inThe upper end of low-pressure inlet pipe is connected with described the 4th valve port, and the outlet side of described low pressure escape pipe is connected with described gas returning port.
According to the freezing cycle device of the embodiment of the present invention, by being provided with gas-liquid separator, the refrigerant in pressure piping with separateRefrigerant in space carries out heat exchange, thereby makes gas-liquid separator play subcooler, regenerator and gas-liquid separation simultaneouslyEffect, has increased degree of supercooling and the degree of superheat of freezing cycle device, thereby has improved the refrigerating efficiency of compressor, has improved coldFreeze the COP of EGR.
Further, freezing cycle device also comprises auxiliary stream, described auxiliary stream respectively with described pressure piping and described inThe outlet side of low pressure escape pipe is connected, and on described auxiliary stream, is in series with the second throttling arrangement and control valve.
According to the refrigeration system of the embodiment of the present invention, comprising: compressor, described compressor has exhaust outlet and gas returning port; ChamberExternal heat exchanger, the two ends of described outdoor heat exchanger are connected with the first end of first throttle device with described exhaust outlet respectively; IndoorHeat exchanger and gas-liquid separator according to the above embodiment of the present invention, described first of described pressure piping is imported and exported and described theThe second end of one throttling arrangement is connected, and described second of described pressure piping is imported and exported the first end phase with described indoor heat exchangerConnect, the upper end of described low-pressure inlet pipe is connected with the second end of described indoor heat exchanger, the outlet side of described low pressure escape pipe andDescribed gas returning port is connected.
According to the refrigeration system of the embodiment of the present invention, by being provided with gas-liquid separator, the refrigerant in pressure piping and separated spaceIn refrigerant carry out heat exchange, thereby make gas-liquid separator play the effect of subcooler, regenerator and gas-liquid separation simultaneously,Increase degree of supercooling and the degree of superheat of refrigeration system, thereby improved the refrigerating efficiency of compressor, improved the COP of refrigeration system.
Further, refrigeration system also comprises auxiliary stream, described auxiliary stream respectively with described pressure piping and described low pressureThe outlet side of escape pipe is connected, and on described auxiliary stream, is in series with the second throttling arrangement and control valve.
Brief description of the drawings
Fig. 1 is the schematic diagram of gas-liquid separator according to an embodiment of the invention;
Fig. 2 is the schematic diagram of gas-liquid separator in accordance with another embodiment of the present invention;
Fig. 3 is according to the profile of the gas-liquid separator of the embodiment of the present invention angle;
Fig. 4 is the pressure piping in gas-liquid separator and the cooperation schematic diagram of cylindrical shell according to an embodiment of the invention;
Fig. 5 is the pressure piping in gas-liquid separator and the cooperation schematic diagram of cylindrical shell in accordance with another embodiment of the present invention;
Fig. 6 is according to the top view of the gas-liquid separator of the embodiment of the present invention;
Fig. 7 is according to the schematic diagram of the low-pressure inlet pipe of the embodiment of the present invention;
Fig. 8 is the cutaway view of the low-pressure inlet pipe shown in Fig. 7;
Fig. 9 is according to the profile of the low pressure escape pipe of the embodiment of the present invention;
Figure 10 is according to the schematic diagram of the freezing cycle device of the embodiment of the present invention;
Figure 11 is according to the schematic diagram of the refrigeration system of the embodiment of the present invention.
Reference numeral:
Gas-liquid separator 100,
Cylindrical shell 1, separated space 10,
Low-pressure inlet pipe 2, bolster 20, liquid outlet 21,
Low pressure escape pipe 3, oil return opening 30, return-air hole 31, inlet end 32, outlet side 33,
Pressure piping 4, heat exchange pipeline part 40, the second import and export 41, the first import and export 42, primary flow path 401, point stream402, current divider 43,
Filter 5,
Heat exchange fin 6, support 7,
Freezing cycle device 1000, refrigeration system 2000, compressor 200, exhaust outlet a, gas returning port b, commutation assembly 300,The first valve port c, the second valve port d, the 3rd valve port e, the 4th valve port f, outdoor heat exchanger 400, indoor heat exchanger 500,One throttling arrangement 600, the second throttling arrangement 700, control valve 800, auxiliary stream 900.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings. Below by with reference to accompanying drawingThe embodiment describing is exemplary, is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width "," thickness ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior "," outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferentially " etc. instruction orientation or position relationship be based onOrientation shown in the drawings or position relationship, be only the present invention for convenience of description and simplified characterization, instead of instruction or hint instituteThe device referring to or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as thisBright restriction.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can be expressedOr impliedly comprise at least one this feature. In description of the invention, the implication of " multiple " is at least two, for example twoIndividual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixing "Should be interpreted broadly Deng term, for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can beMechanical connection can be also electrical connection or each other can communication; Can be to be directly connected, also can pass through the indirect phase of intermediaryConnecting, can be the connection of two element internals or the interaction relationship of two elements, unless separately there is clear and definite restriction. ForThose of ordinary skill in the art, can understand above-mentioned term concrete meaning in the present invention as the case may be.
Describe in detail according to the gas-liquid separator 100 of the embodiment of the present invention below with reference to Fig. 1-Figure 10, gas-liquid separator 100 canTo be applied in freezing cycle device 1000 or refrigeration system 2000, freezing cycle device 1000 has refrigeration mode and systemHeat pattern, refrigeration system 2000 has refrigeration mode. For the ease of the operation principle of gas-liquid separator 100 is described,In the following description gas-liquid separator 100 is attached in freezing cycle device 1000 as example describes.
Freezing cycle device 1000 comprises compressor 200, outdoor heat exchanger 400, indoor heat exchanger 500, commutation assembly 300With first throttle device 600 elements such as grade, compressor 200 has exhaust outlet a and gas returning port b, and commutation assembly 300 has theOne valve port c to the four valve port f, the first valve port c is connected with exhaust outlet a, of the second valve port d and outdoor heat exchanger 400One end is connected, and the 3rd valve port e is connected with the first end of indoor heat exchanger 500, second end and first of outdoor heat exchanger 400The first end of throttling arrangement 600 is connected. In the time that freezing cycle device 1000 freezes, the first valve port c is communicated with the second valve port dAnd the 3rd valve port e is communicated with the 4th valve port f. In the time that freezing cycle device 1000 heats, the first valve port c and the 3rd valve port eBe communicated with and the second valve port d and the 4th valve port f connection.
As Figure 1-Figure 4, according to the gas-liquid separator 100 of the embodiment of the present invention, comprising: cylindrical shell 1, low-pressure inlet pipe 2,The circulate pressure piping 4 of refrigerant of low pressure escape pipe 3 and being suitable for. Wherein, in cylindrical shell 1, limit separated space 10, low compressing intoIt is interior to enter the refrigerant for the treatment of gas-liquid separation that one end of tracheae 2 extend into separated space 10, and refrigerant is drained into from low-pressure inlet pipe 2In separated space 10, the refrigerant being drained in separated space 10 carries out gas-liquid separation to isolate gaseous coolant and liquid refrigerants.In the example of Fig. 1-Fig. 3, Fig. 6, low-pressure inlet pipe 2 extend into downwards in separated space 10 from the top of cylindrical shell 1, butBe to be understandable that, low-pressure inlet pipe 2 can also or flatly extend into separated space 10 from the sidewall slope of cylindrical shell 1In.
Low pressure escape pipe 3 extend in separated space 10 to discharge the gaseous coolant in separated space 10, low pressure escape pipe 3The part that is positioned at separated space 10 bottoms be provided with oil return opening 30. That is to say, low pressure escape pipe 3 has inlet end 32With outlet side 33, the inlet end 32 of low pressure escape pipe 3 is positioned at separated space 10, the outlet side 33 of low pressure escape pipe 3Be positioned at outside cylindrical shell 1, a part for low pressure escape pipe 3 is positioned at the bottom of separated space 10. Because gaseous coolant is generally positioned at pointFrom the top in space 10, therefore the inlet end 32 of low pressure escape pipe 3 is preferably placed at the top of separated space 10.
Pressure piping 4 has the heat exchange pipeline portion of separated space 10 to carry out heat exchange with the refrigerant of separated space 10 that be positioned atDivide 40, heat exchange pipeline part 40 comprises two primary flow path 401 and multiple points of streams 402, and the two ends of each point of stream 402 are dividedBe not communicated with two primary flow path 401, cylindrical shell 1 is stretched out respectively to limit the first import and export 42 in the end of two primary flow path 401With the second import and export 41. In other words, pressure piping 4 first extend in separated space 10 from cylindrical shell 1, high-voltage tube afterwardsRoad 4 stretches out cylindrical shell 1 again, enters into refrigerant in pressure piping 4 taking pressure piping 4 as flow path and in separated space 10Refrigerant carry out heat exchange. The refrigerant that flows to pressure piping 4 is introduced in one of them primary flow path 401, and refrigerant enters afterwardsIn multiple points of streams 402, then the refrigerant in multiple points of streams 402 converges to the rear expelling tube of another primary flow path 401 againBody 1. Thereby by making heat exchange pipeline part 40 comprise two primary flow path 401 and multiple points of streams 402, can increase and changeThe heat exchange area of hot channel part 40, improves heat transfer effect.
Be understandable that, can select according to actual conditions the quantity of point stream 402, the shape of multiple points of streams 402 andCirculation can be the same or different. The shape of each point of stream 402 is not done concrete restriction, for example each point of stream 402Can be formed as " U " shape substantially, or each point of stream 402 can comprise the bending bend extending.
Particularly, can in cylindrical shell 1, be provided with connector so that low pressure escape pipe 3 and pressure piping 4 are fixed to location,Between low pressure escape pipe 3 and pressure piping 4, can carry out local welding so that both are fixed. More specifically, high-voltage tubeThe caliber of the primary flow path 401 in road 4 can be less than the caliber of low pressure escape pipe 3, the caliber of the primary flow path 401 of pressure piping 4Can be less than the caliber of low-pressure inlet pipe 2.
It should be noted that, " high pressure " in description of the invention and " low pressure " just comparatively speaking, only represent to enter intoThe pressure of the refrigerant in pressure piping 4 is greater than the pressure of the refrigerant in low-pressure inlet pipe 2 and low pressure escape pipe 3, and does not representConcrete force value.
In the time that gas-liquid separator 100 is applied to freezing cycle device 1000, as shown in Figure 9, the first turnover of pressure piping 4Mouth 42 is connected with the second end of first throttle device 600, the second import and export 41 and indoor heat exchanger 500 of pressure piping 4The second end be connected, low-pressure inlet pipe 2 is connected with the 4th valve port f, low pressure escape pipe 3 is connected with gas returning port b.
When freezing cycle device 1000 refrigerating operaton, the refrigerant process of the HTHP of discharging from the exhaust outlet a of compressor 200Outdoor heat exchanger 400 condensations, the refrigerant of discharging from outdoor heat exchanger 400 enters into the interior reducing pressure by regulating flow of first throttle device 600,The refrigerant flowing out from first throttle device 600 flow in pressure piping 4, the refrigerant in pressure piping 4 and separated space 10The refrigerant of interior storage carries out heat exchange, makes the refrigerant in pressure piping 4 further cooling, has improved the interior storage of separated space 10The degree of superheat of refrigerant, the heated gasification of refrigerant of the storage in gas-liquid separator 100. Pressure piping 4 is interior after heat exchangeRefrigerant be discharged to and indoor heat exchanger 500, carry out heat exchange from the second import and export 41, the refrigerant of discharging from indoor heat exchanger 500 rowTo the 3rd valve port e, the refrigerant of discharging from the 4th valve port f is afterwards drained in separated space 10 by low-pressure inlet pipe 2, rowEnter to the refrigerant in separated space 10 and carry out gas-liquid separation, liquid refrigerants is stored in separated space 10, and gaseous coolant is from lowExtrude tracheae 3 and be discharged to gas returning port b to get back in compressor 200.
When freezing cycle device 1000 heating operation, the refrigerant of discharging from the exhaust outlet a of compressor 200 is drained into indoor heat exchangeIn device 500, carry out condensation, the refrigerant of discharging from indoor heat exchanger 500 enters in pressure piping 4 by the second import and export 41,The refrigerant of the refrigerant in pressure piping 4 and separated space 10 interior storages carries out heat exchange, makes the refrigerant in pressure piping 4 enter oneWalk coolingly, the refrigerant of discharging from pressure piping 4 is drained into outdoor heat exchanger after the reducing pressure by regulating flow of first throttle device 600In 400, carry out evaporation and heat-exchange, the refrigerant of discharging from outdoor heat exchanger 400 is discharged to the second valve port d, afterwards from the 4th valve port f rowThe refrigerant going out is drained in separated space 10 by low-pressure inlet pipe 2, and the refrigerant being drained in separated space 10 carries out gas-liquidSeparate, liquid refrigerants is stored in separated space 10, and gaseous coolant is discharged to gas returning port b to get back to pressure from low pressure escape pipe 3In contracting machine 200.
No matter freezing cycle device 1000 freezes or heats, because refrigerant is in the process of freezing cycle device 1000 interior circulationsA part of lubricating oil is carried in middle meeting, therefore in the liquid refrigerants in separated space 10, is mixed with lubricating oil, in separated space 10Lubricating oil can enter in low pressure escape pipe 3 and be carried to gas returning port b to get back to compression by gaseous coolant through oil return opening 30In machine 200.
Hence one can see that, and no matter freezing cycle device 1000 freezes or heats, and refrigerant in pressure piping 4 all and separated spaceThe refrigerant of 10 interior storages carries out heat exchange, has improved the degree of superheat of the refrigerant of separated space 10 interior storages, makes separated space 10The heated gasification of refrigerant of interior storage, and then improved the mass dryness fraction of the refrigerant that enters into compressor 200, effectively reduce pressureThe liquid hammer risk that contracting machine 200 absorbing gas belt liquid cause, therefore, for the refrigerant of storage in gas-liquid separator 100,
Gas-liquid separator 100 has played the function of regenerator, has increased the degree of superheat of freezing cycle device 1000.
Refrigerant obtains further cooling in pressure piping 4, has improved after the degree of supercooling of refrigerant, then has entered into next unitIn part, carry out heat exchange. Therefore, for the refrigerant that outdoor heat exchanger 400 or indoor heat exchanger 500 are discharged, gas-liquidSeparator 100 has played the effect of subcooler, has increased the degree of supercooling of freezing cycle device 1000.
Known in sum, gas-liquid separator 100 has played the effect of subcooler, regenerator and gas-liquid separation simultaneously, increasesAdd degree of supercooling and the degree of superheat of freezing cycle device 1000, thereby improved the refrigerating efficiency of compressor 200, improved cold(CoefficientofPerformance, heating energy efficiency ratio, between energy and heat to freeze the COP of EGR 1000Conversion ratio).
According to the gas-liquid separator 100 of the embodiment of the present invention, by being provided with pressure piping 4, the refrigerant in pressure piping 4 with pointRefrigerant in space 10 carries out heat exchange, thereby makes gas-liquid separator 100 play subcooler, regenerator and gas simultaneouslyThe effect that liquid separates, has increased degree of supercooling and the degree of superheat of freezing cycle device 1000, thereby has improved the system of compressor 200Cold efficiency, has improved the COP of freezing cycle device 1000.
In further embodiment of the present invention, as shown in Figure 2, in heat exchange pipeline part 40, overcoat has heat exchange fin 6. FromAnd heat exchange fin 6 can increase the heat exchange area of heat exchange pipeline part 40, improve the refrigerant in heat exchange pipeline part 40 and divideFrom the heat exchange efficiency between the refrigerant of space 10 interior storages, improve heat transfer effect. Particularly, heat exchange fin 6 can be multiple,Outer being enclosed within heat exchange pipeline part 40 of each heat exchange fin 6, can adopt between heat exchange fin 6 and heat exchange pipeline part 40Any mode is fixed.
Describe in detail according to the gas-liquid separator 100 of the specific embodiment of the invention below with reference to Fig. 1, Fig. 3-Fig. 9.
As shown in Figure 1, comprise cylindrical shell 1, low-pressure inlet pipe 2, low extrusion according to the gas-liquid separator 100 of the embodiment of the present inventionThe circulate pressure piping 4 of refrigerant of tracheae 3 and being suitable for. In cylindrical shell 1, limit separated space 10.
The lower end of low-pressure inlet pipe 2 extend in separated space 10, and the upper end of low-pressure inlet pipe 2 is positioned at outside cylindrical shell 1. ForThe bottom of avoiding being drained into refrigerant in cylindrical shell 1 and flinging from low-pressure inlet pipe 2 cylindrical shell 1, is provided with buffering in low-pressure inlet pipe 2Part 20, bolster 20 can play the effect of the flow velocity of buffering refrigerant, and the refrigerant process entering in low-pressure inlet pipe 2 is delayedAfter the buffering of stamping 20, enter in cylindrical shell 1.
As shown in Fig. 3, Fig. 7 and Fig. 8, bolster 20 is positioned at cylindrical shell 1, a part of tube wall of low-pressure inlet pipe 2 and itsAfter remaining tube wall separates, bend inwards to limit bolster 20, that is to say, bolster 20 is by one of low-pressure inlet pipe 2Part tube wall bends inwards and limits, owing to limiting this part tube wall and all the other pipes of low-pressure inlet pipe 2 of bolster 20Wall is separated, and therefore on the perisporium of low-pressure inlet pipe 2, limits liquid outlet 21, and the major part that enters into low-pressure inlet pipe 2 is coldMatchmaker is drained in separated space 10 from liquid outlet 21 be cushioned part 20 backstops in the process flowing downward after. Certainly can manageSeparate, the structure of bolster 20 is not limited to this, for example bolster 20 can also for multiple be located at low-pressure inlet pipe 2 inProjection on perisporium, multiple projections are spaced apart on the length direction of low-pressure inlet pipe 2, as long as bolster 20 can playThe flow velocity of buffering refrigerant.
Low pressure escape pipe 3 is formed as " U " shape substantially, and low pressure escape pipe 3 first extend in separated space 10 also downward downwardsExtend to the bottom of separated space 10, low pressure escape pipe 3 upwards bends the top that extends to separated space 10 afterwards, is positioned atThe end of the low pressure escape pipe 3 on the top of separated space 10 is inlet end 32, is positioned at low pressure escape pipe 3 outside cylindrical shell 1End is outlet side 33.
The bending part place that is positioned at separated space 10 of low pressure escape pipe 3 is provided with oil return opening 30, and the size of oil return opening 30 canArrange according to actual conditions, for example as shown in Figure 9, the diameter of oil return opening 30 is d, and the span of d is 0.5mm-5mm.
In order to prevent that impurity from entering in low pressure escape pipe 3 by oil return opening 30, as shown in Figure 3 and Figure 9, gas-liquid separator100 also comprise filter 5, and filter 5 is located at oil return opening 30 places. As shown in Figure 9, filter 5 can be screen pack,Screen pack 5 is located on low pressure escape pipe 3 by support 7. Certainly can understand, filter 5 can also be formed as itHis filtration.
As shown in Figure 3, the distance between the center line of the base section of low pressure escape pipe 3 and the diapire of separated space 10 is B,Can be 5mm-50mm apart from the span of B. As shown in Figure 3, the bottom of low-pressure inlet pipe 2 extends beyond low pressure downwardsThe inlet end 32 of escape pipe 3. Thereby can avoid the refrigerant entering in cylindrical shell 1 from low-pressure inlet pipe 2 to be directly drained into lowExtrude in tracheae 3. As shown in Figure 3, the distance between the bottom face of low-pressure inlet pipe 2 and the air inlet end face of low pressure escape pipe 3From being H, distance H > 0.
As shown in Figure 3, the outlet side 33 that is positioned at separated space 10 and contiguous low pressure escape pipe 3 of low pressure escape pipe 3Part is provided with return-air hole 31, that is to say, return-air hole 31 is located on low pressure escape pipe 3, and return-air hole 31 is positioned at and separates skyBetween in 10, the outlet side 33 of return-air hole 31 contiguous low pressure escape pipes 3 arranges, the gaseous coolant in separated space 10 canEnter in low pressure escape pipe 3 by return-air hole 31, the gaseous coolant in separated space 10 can pass through return-air hole 31 HesInlet end 32 enters in low pressure escape pipe 3, thereby can increase the gas output of low pressure escape pipe 3. Be understandable that,The quantity of return-air hole 31, the shape and size of each return-air hole 31 can be set according to the actual requirements.
As shown in Figure 6, the line of centres L1 of the outlet side 33 of low pressure escape pipe 3 and the inlet end 32 of low pressure escape pipe 3 with,Angle between the outlet side 33 of low pressure escape pipe 3 and the line of centres L2 of low-pressure inlet pipe 2 is A, described A > 0. AlsoIn other words, line of centres L1 is through the end face center of outlet side 33 and the inlet end of low pressure escape pipe 3 of low pressure escape pipe 332 end face center, the end face center of the outlet side 33 of line of centres L2 process low pressure escape pipe 3 and low-pressure inlet pipe 2The center of top end face. In brief, between two of low pressure escape pipe 3 straight lines that the mouth of pipe becomes and low-pressure inlet pipe 2, become oneAngle.
As shown in Figure 4 and Figure 5, heat exchange pipeline part 40 comprises two primary flow path 401, multiple points of streams 402 and two pointsStream device 43, the two ends of each point of stream 402 are communicated with two primary flow path 401 respectively, and the end of two primary flow path 401 is respectivelyStretch out cylindrical shell 1 and import and export 41 to limit the first import and export 42 and second. Each current divider 43 has total head piece and multiple sonHead piece, two primary flow path 401 are connected with total head piece of two current dividers 43 respectively, multiple points of streams 402 respectively with two pointsThe subflow mouth of stream device 43 is connected, and that is to say, passes through a current divider between each primary flow path 401 and multiple points of streams 40243 are connected, thereby make the simple in structure of heat exchange pipeline part 40. Certainly can understand, each primary flow path 401 withAnnexation between multiple points of streams 402 is not limited to this, and for example each point of stream 402 can directly be welded on each main flowOn road 401.
In the example of Fig. 4, a point stream 402 is three. In the example of Fig. 5, a point stream 402 is two, current divider43 can be triple valve.
Describe according to the freezing cycle device 1000 of the embodiment of the present invention below with reference to Figure 10.
As shown in figure 10, according to the freezing cycle device 1000 of the embodiment of the present invention, comprising: compressor 200, outdoor heat exchangeDevice 400, indoor heat exchanger 500, commutation assembly 300, first throttle device 600 and gas-liquid separator 100, compressor 200Have exhaust outlet a and gas returning port b, commutation assembly 300 has the first valve port c to the four valve port f, the first valve port c and exhaustMouth a is connected, and the second valve port d is connected with the first end of outdoor heat exchanger 400, the 3rd valve port e and indoor heat exchanger 500First end is connected, and the second end of outdoor heat exchanger 400 is connected with the first end of first throttle device 600. When freeze cycle dressWhile putting 1000 refrigeration, the first valve port c is communicated with the second valve port d and the 3rd valve port e is communicated with the 4th valve port f. Follow when freezingWhen loop device 1000 heats, the first valve port c is communicated with the 3rd valve port e and the second valve port d and the 4th valve port f connection.
Preferably, commutation assembly 300 is cross valve, certainly can understand, and commutation assembly 300 can also be formed as itHis structure, as long as have the first valve port c to the four valve port f and can realize commutation.
First of pressure piping 4 is imported and exported 42 and is connected with the second end of first throttle device 600, and second of pressure piping 4 entersOutlet 41 is connected with the second end of indoor heat exchanger 500, and the upper end of low-pressure inlet pipe 2 is connected with the 4th valve port f, low extrusionThe outlet side 33 of tracheae 3 is connected with gas returning port b. Alternatively, first throttle device 600 is capillary or electric expansion valveDeng restricting element.
It should be noted that the refrigerant during according to freezing cycle device 1000 refrigerating operatons of the embodiment of the present invention and heating operationCyclic process have been described in detail above-mentioned, just repeats no more here.
According to the freezing cycle device 1000 of the embodiment of the present invention, by being provided with gas-liquid separator 100, in pressure piping 4Refrigerant in refrigerant and separated space 10 carries out heat exchange, thereby makes gas-liquid separator 100 play subcooler, backheat simultaneouslyThe effect of device and gas-liquid separation, has increased degree of supercooling and the degree of superheat of freezing cycle device 1000, thereby has improved compressor200 refrigerating efficiency, has improved the COP of freezing cycle device 1000.
As shown in figure 10, in some embodiments of the invention, freezing cycle device 1000 also comprises auxiliary stream 900, auxiliaryHelp stream 900 to be connected with the outlet side 33 of pressure piping 4 and low pressure escape pipe 3 respectively, on auxiliary stream 900, be in series with theTwo throttling arrangements 700 and control valve 800.
Particularly, the first end of auxiliary stream 900 is connected between first throttle device 600 and pressure piping 4, auxiliaryThe second end of stream 900 is connected between low pressure escape pipe 3 and gas returning port b, and control valve 800 can be stop valve or listThree-way electromagnetic valve. The second throttling arrangement 700 plays the effect of reducing pressure by regulating flow, and alternatively, the second throttling arrangement 700 is capillary.
Hence one can see that, and in the time that freezing cycle device 1000 freezes, control valve 800 is opened, and flows out from first throttle device 600Refrigerant can after the reducing pressure by regulating flow again of the second throttling arrangement 700, mix with the refrigerant of discharging from low pressure escape pipe 3 rowEnter in gas returning port b. In the time that freezing cycle device 1000 heats, control valve 800 can be in closed condition. Thereby canReduce the temperature of the refrigerant that is discharged to gas returning port b, thereby reduce the temperature of the refrigerant of discharging from the exhaust outlet a of compressor 200,Avoid compressor 200 exhaust outlet a excess Temperature and compressor 200 is caused to disadvantageous phenomenon, play protection compressor200 effect.
Describe in detail according to the refrigeration system 2000 of the embodiment of the present invention below with reference to Figure 11.
According to the refrigeration system 2000 of the embodiment of the present invention, comprising: compressor 200, outdoor heat exchanger 400, indoor heat exchanger500, first throttle device 600 and gas-liquid separator 100, compressor 200 has exhaust outlet a and gas returning port b. Outdoor changingThe two ends of hot device 400 are connected with the first end of first throttle device 600 with exhaust outlet a respectively.
First of pressure piping 4 is imported and exported 42 and is connected with the second end of first throttle device 600, and second of pressure piping 4 entersOutlet 41 is connected with the first end of indoor heat exchanger 500, the second end of the upper end of low-pressure inlet pipe 2 and indoor heat exchanger 500Be connected, the outlet side 33 of low pressure escape pipe 3 is connected with gas returning port b.
It should be noted that the refrigerant circulation process during according to refrigeration system 2000 refrigerating operaton of the embodiment of the present invention and freezingRefrigerant circulation process when EGR 1000 freezes is identical, and have been described in detail above-mentioned, just repeats no more here.
According to the refrigeration system 2000 of the embodiment of the present invention, by being provided with gas-liquid separator 100, the refrigerant in pressure piping 4Carry out heat exchange with the refrigerant in separated space 10, thus make gas-liquid separator 100 played simultaneously subcooler, regenerator withAnd the effect of gas-liquid separation, increase degree of supercooling and the degree of superheat of refrigeration system 2000, thereby improved the system of compressor 200Cold efficiency, has improved the COP of refrigeration system 2000.
As shown in figure 11, in some embodiments of the invention, refrigeration system 2000 also comprises auxiliary stream 900, auxiliary flowRoad 900 is connected with the outlet side 33 of pressure piping 4 and low pressure escape pipe 3 respectively, on auxiliary stream 900, is in series with second sectionStream device 700 and control valve 800.
Particularly, the first end of auxiliary stream 900 is connected between first throttle device 600 and pressure piping 4, auxiliaryThe second end of stream 900 is connected between low pressure escape pipe 3 and gas returning port b, and control valve 800 can be stop valve or listTo valve. In the time that control valve 800 is check valve, check valve at the first end from auxiliary stream 900 to the of auxiliary stream 900One-way conduction in the direction of two ends. The second throttling arrangement 700 plays the effect of reducing pressure by regulating flow, alternatively, and the second throttling arrangement700 is capillary.
Hence one can see that, and the refrigerant flowing out from first throttle device 600 can be through the reducing pressure by regulating flow again of the second throttling arrangement 700Mixing with the refrigerant of discharging from low pressure escape pipe 3 afterwards, be drained in gas returning port b. Be discharged to gas returning port b's thereby can reduceThe temperature of refrigerant, thus reduction is from the temperature of the refrigerant of the exhaust outlet a discharge of compressor 200, avoids the row of compressor 200The excess Temperature of gas port a and compressor 200 is caused to disadvantageous phenomenon, plays the effect of protection compressor 200.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score canBeing that the first and second features directly contact, or the first and second features are by intermediary mediate contact. And, theOne feature Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic orOblique upper, or only represent that First Characteristic level height is higher than Second Characteristic. First Characteristic Second Characteristic " under "," below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represents the first spyLevy level height and be less than Second Characteristic.
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure, material orFeature is contained at least one embodiment of the present invention or example. In this manual, the schematic statement to above-mentioned termNot must for be identical embodiment or example. And specific features, structure, material or the feature of description canIn one or more embodiment in office or example with suitable mode combination. In addition, not conflicting in the situation that, abilityThe technical staff in territory can enter the feature of the different embodiment that describe in this description or example and different embodiment or exampleRow combination and combination.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary,Can not be interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodimentChange, amendment, replacement and modification.
Claims (13)
1. a gas-liquid separator, is characterized in that, comprising:
Cylindrical shell, limits separated space in described cylindrical shell;
Low-pressure inlet pipe, one end of described low-pressure inlet pipe extend in described separated space to enter the refrigerant for the treatment of gas-liquid separation;
Low pressure escape pipe, described low pressure escape pipe extend in described separated space to discharge gaseous state in described separated space coldMatchmaker, the part that is positioned at described separated space bottom of described low pressure escape pipe is provided with oil return opening;
Be suitable for the circulating pressure piping of refrigerant, described pressure piping have be positioned at described separated space with described separated spaceThe heat exchange pipeline part that interior refrigerant carries out heat exchange, described heat exchange pipeline part comprises two primary flow path and multiple points of streams, everyThe two ends of individual described point stream are communicated with described two primary flow path respectively, and described cylinder is stretched out respectively in the end of described two primary flow pathBody is imported and exported to limit the first import and export and second.
2. gas-liquid separator according to claim 1, is characterized in that, in described low-pressure inlet pipe, is provided with bolster.
3. gas-liquid separator according to claim 2, is characterized in that, a part of tube wall of described low-pressure inlet pipe withAll the other tube walls bend inwards to limit described bolster after separating.
4. gas-liquid separator according to claim 1, is characterized in that, described low pressure escape pipe be positioned at described separationIn space and the part of the outlet side of contiguous described low pressure escape pipe be provided with return-air hole.
5. gas-liquid separator according to claim 1, is characterized in that, described pressure piping also comprises two current dividers,Each described current divider has total head piece and multiple subflow mouth, and described two primary flow path are respectively with described in described two current dividersTotal head piece is connected, and described multiple points of streams are connected with the subflow mouth of described two current dividers respectively.
6. gas-liquid separator according to claim 1, is characterized in that, also comprises filter, and described filter is located atDescribed oil return opening place.
7. gas-liquid separator according to claim 1, is characterized in that, in described heat exchange pipeline part, overcoat has heat exchangeFin.
8. gas-liquid separator according to claim 1, is characterized in that, the bottom of described low-pressure inlet pipe is to downward-extensionExceed the inlet end of described low pressure escape pipe.
9. gas-liquid separator according to claim 1, is characterized in that, the outlet side of described low pressure escape pipe and described inThe line of centres of the inlet end of low pressure escape pipe connects with, the outlet side of described low pressure escape pipe and the center of described low-pressure inlet pipeAngle between line is A, described A > 0.
10. a freezing cycle device, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
Commutation assembly, described commutation assembly comprises the first valve port to the four valve ports, described the first valve port and the second valve port and the 3rdOne of them in valve port is communicated with, and described the 4th valve port is communicated with another in described the second valve port and described the 3rd valve port,Described the first valve port is connected with described exhaust outlet;
Outdoor heat exchanger and indoor heat exchanger, the two ends of described outdoor heat exchanger fill with described the second valve port and first throttle respectivelyThe first end of putting is connected, and the first end of described indoor heat exchanger is connected with described the 3rd valve port;
According to the gas-liquid separator described in any one in claim 1-9, described first of described pressure piping is imported and exported and instituteThe second end of stating first throttle device is connected, and described second of described pressure piping is imported and exported and second of described indoor heat exchangerEnd is connected, and the upper end of described low-pressure inlet pipe is connected with described the 4th valve port, the outlet side of described low pressure escape pipe and described timeGas port is connected.
11. freezing cycle devices according to claim 10, is characterized in that, also comprise auxiliary stream, described auxiliaryStream is connected with the outlet side of described low pressure escape pipe with described pressure piping respectively, on described auxiliary stream, is in series with second sectionStream device and control valve.
12. 1 kinds of refrigeration systems, is characterized in that, comprising:
Compressor, described compressor has exhaust outlet and gas returning port;
Outdoor heat exchanger, the two ends of described outdoor heat exchanger are connected with the first end of first throttle device with described exhaust outlet respectively;
Indoor heat exchanger and according to the gas-liquid separator described in any one in claim 1-9, described of described pressure pipingOne import and export are connected with the second end of described first throttle device, and described second of described pressure piping is imported and exported with described indoorThe first end of heat exchanger is connected, and the upper end of described low-pressure inlet pipe is connected with the second end of described indoor heat exchanger, described low pressureThe outlet side of escape pipe is connected with described gas returning port.
13. refrigeration systems according to claim 12, is characterized in that, also comprise auxiliary stream, described auxiliary streamBe connected with the outlet side of described low pressure escape pipe with described pressure piping respectively, on described auxiliary stream, be in series with the second throttling dressPut and control valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510932635.XA CN105605837A (en) | 2015-12-14 | 2015-12-14 | Gas-liquid separator and refrigeration cycle device with same and refrigeration system with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510932635.XA CN105605837A (en) | 2015-12-14 | 2015-12-14 | Gas-liquid separator and refrigeration cycle device with same and refrigeration system with same |
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| CN105605837A true CN105605837A (en) | 2016-05-25 |
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| CN201510932635.XA Pending CN105605837A (en) | 2015-12-14 | 2015-12-14 | Gas-liquid separator and refrigeration cycle device with same and refrigeration system with same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021223775A1 (en) * | 2020-08-18 | 2021-11-11 | 青岛海尔特种电冰箱有限公司 | Liquid accumulator and refrigerator used for refrigeration system |
| CN114777365A (en) * | 2022-04-21 | 2022-07-22 | 浙江三花智能控制股份有限公司 | Gas-liquid separator and air conditioning system thereof |
| CN114777365B (en) * | 2022-04-21 | 2024-09-24 | 浙江三花智能控制股份有限公司 | Gas-liquid separator and air conditioning system thereof |
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