CN205425555U - Vapour and liquid separator and have its refrigerating cycle device, refrigerating system - Google Patents
Vapour and liquid separator and have its refrigerating cycle device, refrigerating system Download PDFInfo
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- CN205425555U CN205425555U CN201521040620.4U CN201521040620U CN205425555U CN 205425555 U CN205425555 U CN 205425555U CN 201521040620 U CN201521040620 U CN 201521040620U CN 205425555 U CN205425555 U CN 205425555U
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Abstract
The utility model discloses a vapour and liquid separator and have its refrigerating cycle device, refrigerating system. Vapour and liquid separator includes: barrel, low -pressure admission pipe, low pressure outlet duct and be suitable for the high -pressure pipeline of circulation refrigerant prescribe a limit to a separated space in the barrel. The one end of low -pressure admission pipe stretches into in order to emit into the refrigerant of treating gas -liquid separation in the separated space. The low pressure outlet duct stretches into in the separated space with the gaseous state refrigerant in the discharge separated space, and being located of low pressure outlet duct is equipped with the oil return opening in the part of separated space lower part. The high -voltage tube way has the heat transfer pipeline part that lies in separated space and carry out the heat transfer with the refrigerant with separated space, and the high -voltage tube way has the first exit and the second that stretch out the barrel and imports and exports. According to the utility model discloses a vapour and liquid separator has played subcooler, regenerator and gas -liquid separation's effect simultaneously.
Description
Technical field
This utility model relates to refrigerating field, especially relates to a kind of gas-liquid separator and has its freezing cycle device, refrigeration system.
Background technology
Many excess oil in compressor and coolant, for realizing vapor-liquid separation, are mainly stored by existing air-conditioning vapour liquid separator, and appropriate gaseous coolant and lubricating oil enter compressor and is compressed.Under extreme operating condition, due to reasons such as temperature are low, compressor easy absorbing gas belt liquid, make compressor that the phenomenon of liquid hammer to occur, cause the Performance And Reliability of compressor to reduce.And, the fluid in vapour liquid separator comes from vaporizer, and the temperature of these fluids is relatively low so that part cold cannot utilize, and causes waste.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.
To this end, the utility model proposes a kind of gas-liquid separator, simultaneously work as the effect of subcooler, regenerator and gas-liquid separation.
This utility model also proposes a kind of freezing cycle device with above-mentioned gas-liquid separator.
This utility model also proposes a kind of refrigeration system with above-mentioned gas-liquid separator.
According to the gas-liquid separator of this utility model embodiment, including: cylinder, limit separated space in described cylinder；Low-pressure inlet pipe, it is interior to enter the coolant treating gas-liquid separation that one end of described low-pressure inlet pipe extend into described separated space；Low pressure escape pipe, it is interior to discharge the gaseous coolant in described separated space that described low pressure escape pipe extend into described separated space, and the part being positioned at described separated space bottom of described low pressure escape pipe is provided with oil return opening；Be suitable to circulate the pressure piping of coolant, and described pressure piping has and is positioned at described separated space and carries out the heat exchange pipeline part of heat exchange with the coolant with described separated space, and described pressure piping has the first import and export and the second import and export stretching out described cylinder.
Gas-liquid separator according to this utility model embodiment, by being provided with pressure piping, coolant in pressure piping carries out heat exchange with the coolant in separated space, so that gas-liquid separator has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of freezing cycle device, thus improve the refrigerating efficiency of compressor, improve the COP of freezing cycle device.
In embodiments more of the present utility model, in described low-pressure inlet pipe, it is provided with bolster.
Specifically, a part of tube wall of described low-pressure inlet pipe bends inwards to limit described bolster after separating with remaining tube wall.
In embodiments more of the present utility model, the part of the outlet side being positioned at described separated space and neighbouring described low pressure escape pipe of described low pressure escape pipe is provided with return-air hole.
Alternatively, described heat exchange pipeline part is formed as general " U " shape.
In embodiments more of the present utility model, gas-liquid separator also includes that filter, described filter are located at described oil return opening.
In embodiments more of the present utility model, described heat exchange pipeline part is cased with heat exchange fin outward.
In embodiments more of the present utility model, the bottom of described low-pressure inlet pipe extends downward beyond the inlet end of described low pressure escape pipe.
In embodiments more of the present utility model, the outlet side of described low pressure escape pipe and the line of centres of the inlet end of described low pressure escape pipe and, angle between the outlet side of described low pressure escape pipe and the line of centres of described low-pressure inlet pipe be A, described A ＞ 0.
According to the freezing cycle device of this utility model embodiment, including: compressor, described compressor has air vent and gas returning port；Commutation assembly, described commutation assembly includes that the first valve port is to the 4th valve port, one of them connection in described first valve port and the second valve port and the 3rd valve port, described 4th valve port connects with another in described second valve port and described 3rd valve port, and described first valve port is connected with described air vent；Outdoor heat exchanger and indoor heat exchanger, the two ends of described outdoor heat exchanger the first end with described second valve port and first throttle device respectively is connected, and the first end of described indoor heat exchanger is connected with described 3rd valve port；Gas-liquid separator according to this utility model above-described embodiment, described the first of described pressure piping is imported and exported and is connected with the second end of described first throttle device, described the second of described pressure piping is imported and exported and is connected with the second end of described indoor heat exchanger, the upper end of described low-pressure inlet pipe is connected with described 4th valve port, and the outlet side of described low pressure escape pipe is connected with described gas returning port.
Freezing cycle device according to this utility model embodiment, by being provided with gas-liquid separator, coolant in pressure piping carries out heat exchange with the coolant in separated space, so that gas-liquid separator has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of freezing cycle device, thus improve the refrigerating efficiency of compressor, improve the COP of freezing cycle device.
Further, freezing cycle device also includes assisting stream, and described auxiliary stream outlet side with described pressure piping and described low pressure escape pipe respectively is connected, and described auxiliary stream is in series with the second throttling arrangement and control valve.
According to the refrigeration system of this utility model embodiment, including: compressor, described compressor has air vent and gas returning port；Outdoor heat exchanger, the two ends of described outdoor heat exchanger the first end with described air vent and first throttle device respectively is connected；Indoor heat exchanger and the gas-liquid separator according to this utility model above-described embodiment, described the first of described pressure piping is imported and exported and is connected with the second end of described first throttle device, described the second of described pressure piping is imported and exported and is connected with the first end of described indoor heat exchanger, the upper end of described low-pressure inlet pipe is connected with the second end of described indoor heat exchanger, and the outlet side of described low pressure escape pipe is connected with described gas returning port.
Refrigeration system according to this utility model embodiment, by being provided with gas-liquid separator, coolant in pressure piping carries out heat exchange with the coolant in separated space, so that gas-liquid separator has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of refrigeration system, thus improve the refrigerating efficiency of compressor, improve the COP of refrigeration system.
Further, refrigeration system also includes assisting stream, and described auxiliary stream outlet side with described pressure piping and described low pressure escape pipe respectively is connected, and described auxiliary stream is in series with the second throttling arrangement and control valve.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the gas-liquid separator according to one embodiment of this utility model；
Fig. 2 is the schematic diagram of the gas-liquid separator according to another embodiment of this utility model；
Fig. 3 is the profile of an angle of the gas-liquid separator according to this utility model embodiment；
Fig. 4 is the profile of another angle of the gas-liquid separator according to this utility model embodiment；
Fig. 5 is the top view of the gas-liquid separator according to this utility model embodiment；
Fig. 6 is the schematic diagram of the low-pressure inlet pipe according to this utility model embodiment；
Fig. 7 is the sectional view of the low-pressure inlet pipe shown in Fig. 6；
Fig. 8 is the profile of the low pressure escape pipe according to this utility model embodiment；
Fig. 9 is the schematic diagram of the freezing cycle device according to this utility model embodiment；
Figure 10 is the schematic diagram of the refrigeration system according to this utility model embodiment.
Reference:
Gas-liquid separator 100,
Cylinder 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, second import and export the 41, first import and export 42,
Filter 5,
Heat exchange fin 6, support 7,
Freezing cycle device 1000, refrigeration system 2000, compressor 200, air vent a, gas returning port b, commutation assembly the 300, 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, first throttle device the 600, second throttling arrangement 700, control valve 800, auxiliary stream 900.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
The gas-liquid separator 100 according to this utility model embodiment is described in detail below with reference to Fig. 1-Fig. 9, gas-liquid separator 100 can be applied in freezing cycle device 1000 or refrigeration system 2000, freezing cycle device 1000 has refrigeration mode and heating mode, and refrigeration system 2000 has refrigeration mode.For the ease of the operation principle of gas-liquid separator 100 is described, illustrate as a example by the following description gas-liquid separator 100 being attached in freezing cycle device 1000.
Freezing cycle device 1000 includes compressor 200, outdoor heat exchanger 400, indoor heat exchanger 500, the commutation element such as assembly 300 and first throttle device 600, compressor 200 has air vent a and gas returning port b, commutation assembly 300 has the first valve port c to the 4th valve port f, first valve port c is connected with air vent a, second valve port d is connected with the first end of outdoor heat exchanger 400,3rd valve port e is connected with the first end of indoor heat exchanger 500, and the second end of outdoor heat exchanger 400 is connected with the first end of first throttle device 600.When freezing cycle device 1000 freezes, the first valve port c and the second valve port d connection and the 3rd valve port e and the 4th valve port f connection.When freezing cycle device 1000 heats, the first valve port c and the 3rd valve port e connection 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 this utility model embodiment, the pressure piping 4 of the coolant that circulates including: cylinder 1, low-pressure inlet pipe 2, low pressure escape pipe 3 and being suitable to.Wherein, separated space 10 is limited in cylinder 1, it is interior to enter the coolant treating gas-liquid separation that one end of low-pressure inlet pipe 2 extend into separated space 10, coolant is drained in separated space 10 from low-pressure inlet pipe 2, is drained into the coolant in separated space 10 and carries out gas-liquid separation to isolate gaseous coolant and liquid refrigerants.Fig. 1-Fig. 3, Fig. 5 example in, low-pressure inlet pipe 2 extend in separated space 10 from the top down of cylinder 1, but it is understood that, low-pressure inlet pipe 2 can also be from the sidewall slope of cylinder 1 or flatly extend in separated space 10.
It is interior to discharge the gaseous coolant in separated space 10 that low pressure escape pipe 3 extend into separated space 10, and the part being positioned at separated space 10 bottom of low pressure escape pipe 3 is provided with oil return opening 30.It is to say, low pressure escape pipe 3 has inlet end 32 and outlet side 33, the inlet end 32 of low pressure escape pipe 3 is positioned at separated space 10, and the outlet side 33 of low pressure escape pipe 3 is positioned at outside cylinder 1, and a part for low pressure escape pipe 3 is positioned at the bottom of separated space 10.Owing to gaseous coolant is normally at the top of separated 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 and is positioned at separated space 10 and carries out the heat exchange pipeline part 40 of heat exchange with the coolant with separated space 10, and pressure piping 4 has and stretches out the first import and export 42 and second of cylinder 1 and import and export 41.In other words, pressure piping 4 first extend in separated space 10 from cylinder 1, and pressure piping 4 stretches out cylinder 1 more afterwards, and the coolant entered in pressure piping 4 carries out heat exchange for flow path with the coolant in separated space 10 with pressure piping 4.
Specifically, connector can be provided with in cylinder 1 so that low pressure escape pipe 3 and pressure piping 4 are fixed location, local welding can be carried out between low pressure escape pipe 3 and pressure piping 4 both to be fixed.More specifically, the caliber of pressure piping 4 can be less than the caliber of low pressure escape pipe 3, the caliber of pressure piping 4 can be less than the caliber of low-pressure inlet pipe 2.
It should be noted that, " high pressure " and " low pressure " in description of the present utility model is the most comparatively speaking, the pressure only indicating entry into the coolant in pressure piping 4 is more than the pressure of the coolant in low-pressure inlet pipe 2 and low pressure escape pipe 3, and does not indicates that concrete force value.
When gas-liquid separator 100 is applied to freezing cycle device 1000, as shown in Figure 9, first import and export 42 of pressure piping 4 are connected with the second end of first throttle device 600, second import and export 41 of pressure piping 4 are connected with the second end of indoor heat exchanger 500, low-pressure inlet pipe 2 is connected with the 4th valve port f, and low pressure escape pipe 3 is connected with gas returning port b.
During freezing cycle device 1000 refrigerating operaton, condense through outdoor heat exchanger 400 from the coolant of the High Temperature High Pressure of the air vent a discharge of compressor 200, reducing pressure by regulating flow in first throttle device 600 is entered into from the coolant of outdoor heat exchanger 400 discharge, the coolant flowed out from first throttle device 600 is flowed in pressure piping 4, coolant in pressure piping 4 carries out heat exchange with the coolant of storage in separated space 10, coolant in pressure piping 4 is cooled down further, the degree of superheat of the coolant stored in improve separated space 10, the heated gasification of the coolant of the storage in gas-liquid separator 100.In pressure piping 4, the coolant after heat exchange is discharged to indoor heat exchanger 500 carry out heat exchange from the second import and export 41, the coolant discharged from indoor heat exchanger 500 is arranged to the 3rd valve port e, the coolant discharged from the 4th valve port f afterwards is drained in separated space 10 by low-pressure inlet pipe 2, it is drained into the coolant in separated space 10 and carries out gas-liquid separation, liquid refrigerants is stored in separated space 10, and gaseous coolant is discharged to gas returning port b to return in compressor 200 from low pressure escape pipe 3.
nullDuring freezing cycle device 1000 heating operation，It is drained into indoor heat exchanger 500 from the coolant of the air vent a discharge of compressor 200 and condenses，The coolant discharged from indoor heat exchanger 500 is entered in pressure piping 4 by the second import and export 41，Coolant in pressure piping 4 carries out heat exchange with the coolant of storage in separated space 10，Coolant in pressure piping 4 is cooled down further，It is evaporated heat exchange in the coolant of pressure piping 4 discharge is drained into outdoor heat exchanger 400 after the reducing pressure by regulating flow of first throttle device 600，The coolant discharged from outdoor heat exchanger 400 is arranged to the second valve port d，The coolant discharged from the 4th valve port f afterwards is drained in separated space 10 by low-pressure inlet pipe 2，It is drained into the coolant in separated space 10 and carries out gas-liquid separation，Liquid refrigerants is stored in separated space 10，Gaseous coolant is discharged to gas returning port b to return in compressor 200 from low pressure escape pipe 3.
No matter freezing cycle device 1000 freezes or heats, a part of lubricating oil can be carried during circulating in freezing cycle device 1000 due to coolant, therefore being mixed with lubricating oil in the liquid refrigerants in separated space 10, the lubricating oil in separated space 10 can be carried to gas returning port b to return in compressor 200 in oil return opening 30 enters into low pressure escape pipe 3 and by gaseous coolant.
It can thus be appreciated that, no matter freezing cycle device 1000 freezes or heats, coolant in pressure piping 4 all carries out heat exchange with the coolant of storage in separated space 10, the degree of superheat of the coolant stored in improve separated space 10 so that the heated gasification of the coolant of storage in separated space 10, and then improve the mass dryness fraction of the coolant entering into compressor 200, effectively reduce the liquid hammer risk that compressor 200 absorbing gas belt liquid causes, for the coolant of storage in gas-liquid separator 100
Gas-liquid separator 100 serves the function of regenerator, adds the degree of superheat of freezing cycle device 1000.
Coolant is further cooled down in pressure piping 4, after improve the degree of supercooling of coolant, enters back in next element and carries out heat exchange.Accordingly, with respect to for the coolant that outdoor heat exchanger 400 or indoor heat exchanger 500 are discharged, gas-liquid separator 100 serves the effect of subcooler, adds the degree of supercooling of freezing cycle device 1000.
Understand in sum, gas-liquid separator 100 has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of freezing cycle device 1000, thus improve the refrigerating efficiency of compressor 200, improve the COP (CoefficientofPerformance of freezing cycle device 1000, heating energy efficiency ratio, i.e. conversion ratio between energy and heat).
Gas-liquid separator 100 according to this utility model embodiment, by being provided with pressure piping 4, coolant in pressure piping 4 carries out heat exchange with the coolant in separated space 10, so that gas-liquid separator 100 has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of freezing cycle device 1000, thus improve the refrigerating efficiency of compressor 200, improve the COP of freezing cycle device 1000.
In further embodiment of the present utility model, it is cased with heat exchange fin 6 as in figure 2 it is shown, outer in heat exchange pipeline part 40.Thus heat exchange fin 6 can increase the heat exchange area of heat exchange pipeline part 40, the heat exchange efficiency between the coolant stored in improving the coolant in heat exchange pipeline part 40 and separated space 10, improves heat transfer effect.Specifically, heat exchange fin 6 can be multiple, is enclosed within heat exchange pipeline part 40 outside each heat exchange fin 6, can adopt and be fixed in any way between heat exchange fin 6 and heat exchange pipeline part 40.
The gas-liquid separator 100 according to this utility model specific embodiment is described in detail below with reference to Fig. 1, Fig. 3-Fig. 8.
As it is shown in figure 1, include cylinder 1, low-pressure inlet pipe 2, low pressure escape pipe 3 according to the gas-liquid separator 100 of this utility model embodiment and be suitable to the pressure piping 4 of circulation coolant.Separated space 10 is limited in cylinder 1.
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 cylinder 1.Coolant in order to avoid being drained in cylinder 1 from low-pressure inlet pipe 2 flings the bottom of cylinder 1, bolster 20 it is provided with in low-pressure inlet pipe 2, bolster 20 can play the effect of the flow velocity of buffering coolant, and the coolant entered in low-pressure inlet pipe 2 enters in cylinder 1 after the buffering of bolster 20.
Such as Fig. 3, shown in Fig. 6 and Fig. 7, bolster 20 is positioned at cylinder 1, a part of tube wall of low-pressure inlet pipe 2 bends inwards to limit bolster 20 after separating with remaining tube wall, that is, bolster 20 is to be bent inwards by a part of tube wall of low-pressure inlet pipe 2 and limit, separate with remaining tube wall owing to limiting this section tubular wall of the low-pressure inlet pipe 2 of bolster 20, therefore liquid outlet 21 is limited on the perisporium of low-pressure inlet pipe 2, enter into after most of coolant of low-pressure inlet pipe 2 is buffered part 20 backstop during flowing downward and be drained in separated space 10 from liquid outlet 21.It is appreciated of course that, the structure of bolster 20 is not limited to this, such as bolster 20 can also be for the projection on multiple internal perisporiums being located at low-pressure inlet pipe 2, and multiple projections are spaced apart on the length direction of low-pressure inlet pipe 2, as long as bolster 20 can play the flow velocity of buffering coolant.
Low pressure escape pipe 3 is formed as general " U " shape, in low pressure escape pipe 3 first extends down into separated space 10 and extend downward the bottom of separated space 10, low pressure escape pipe 3 is folded upward at extending to the top of separated space 10 afterwards, the end of the low pressure escape pipe 3 being positioned at the top of separated space 10 is inlet end 32, and the end of the low pressure escape pipe 3 being positioned at outside cylinder 1 is outlet side 33.
Being provided with oil return opening 30 at the bending part being positioned at separated space 10 of low pressure escape pipe 3, the size of oil return opening 30 can be configured according to practical situation, and the most as shown in Figure 8, the span of a diameter of d, d of oil return opening 30 is 0.5mm-5mm.
Entering in low pressure escape pipe 3 to prevent impurity from passing through oil return opening 30, as shown in figures 3 and 8, gas-liquid separator 100 also includes that filter 5, filter 5 are located at oil return opening 30.As shown in Figure 8, filter 5 can be drainage screen, and drainage screen 5 is located on low pressure escape pipe 3 by support 7.Of course, it should be understood that filter 5 may be formed as other filtrations.
As it is shown on figure 3, the distance between the diapire of the centrage of the base section of low pressure escape pipe 3 and separated space 10 is B, the span of distance B can be 5mm-50mm.As it is shown on figure 3, the bottom of low-pressure inlet pipe 2 extends downward beyond the inlet end 32 of low pressure escape pipe 3.It is directly discharged in low pressure escape pipe 3 such that it is able to avoid entering into the coolant in cylinder 1 from low-pressure inlet pipe 2.As it is shown on figure 3, the distance between the air inlet end face of the bottom face of low-pressure inlet pipe 2 and low pressure escape pipe 3 is H, distance H ＞ 0.
As shown in Figure 3, the part of the outlet side 33 being positioned at separated space 10 and neighbouring low pressure escape pipe 3 of low pressure escape pipe 3 is provided with return-air hole 31, that is, return-air hole 31 is located on low pressure escape pipe 3, return-air hole 31 is positioned at separated space 10, return-air hole 31 is arranged adjacent to the outlet side 33 of low pressure escape pipe 3, gaseous coolant in separated space 10 can enter in low pressure escape pipe 3 by return-air hole 31, i.e. gaseous coolant in separated space 10 can enter in low pressure escape pipe 3 by return-air hole 31 and inlet end 32, such that it is able to increase the gas output of low pressure escape pipe 3.It is understood that the shape and size of the quantity of return-air hole 31, each return-air hole 31 can be set according to the actual requirements.
As it is shown in figure 5, the line of centres L1 of the inlet end 32 of the outlet side 33 of low pressure escape pipe 3 and low pressure escape pipe 3 and, angle between the outlet side 33 of low pressure escape pipe 3 and the line of centres L2 of low-pressure inlet pipe 2 be A, described A ＞ 0.That is, line of centres L1 is through the end face center of the outlet side 33 of low pressure escape pipe 3 and the end face center of the inlet end 32 of low pressure escape pipe 3, and line of centres L2 is through the end face center of the outlet side 33 of low pressure escape pipe 3 and the center of the top end face of low-pressure inlet pipe 2.In short, formed by the two of low pressure escape pipe 3 mouths of pipe between straight line and low-pressure inlet pipe 2 at an angle.
As shown in Figure 1 and Figure 4, the heat exchange pipeline part 40 of pressure piping 4 is formed as general " U " shape, i.e. pressure piping 4 is formed as general " U " shape, and pressure piping 4 is limited by a pipeline.
Below with reference to Fig. 9, the freezing cycle device 1000 according to this utility model embodiment is described.
As shown in Figure 9, freezing cycle device 1000 according to this utility model embodiment, including: compressor 200, outdoor heat exchanger 400, indoor heat exchanger 500, commutation assembly 300, first throttle device 600 and gas-liquid separator 100, compressor 200 has air vent a and gas returning port b, commutation assembly 300 has the first valve port c to the 4th valve port f, first valve port c is connected with air vent a, second valve port d is connected with the first end of outdoor heat exchanger 400, 3rd valve port e is connected with the first end of indoor heat exchanger 500, second end of outdoor heat exchanger 400 is connected with the first end of first throttle device 600.When freezing cycle device 1000 freezes, the first valve port c and the second valve port d connection and the 3rd valve port e and the 4th valve port f connection.When freezing cycle device 1000 heats, the first valve port c and the 3rd valve port e connection and the second valve port d and the 4th valve port f connection.
Preferably, commutation assembly 300 is cross valve, it is of course possible to be understood by, and commutation assembly 300 may be formed as other structures, as long as having the first valve port c to the 4th valve port f and can realizing commutating.
First import and export 42 of pressure piping 4 are connected with the second end of first throttle device 600, second import and export 41 of pressure piping 4 are connected with the second end of indoor heat exchanger 500, the upper end of low-pressure inlet pipe 2 is connected with the 4th valve port f, and the outlet side 33 of low pressure escape pipe 3 is connected with gas returning port b.Alternatively, first throttle device 600 is the restricting element such as capillary tube or electric expansion valve.
It should be noted that be described in detail above-mentioned according to refrigerant circulation process when freezing cycle device 1000 refrigerating operaton of this utility model embodiment and heating operation, the most just repeat no more.
Freezing cycle device 1000 according to this utility model embodiment, by being provided with gas-liquid separator 100, coolant in pressure piping 4 carries out heat exchange with the coolant in separated space 10, so that gas-liquid separator 100 has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of freezing cycle device 1000, thus improve the refrigerating efficiency of compressor 200, improve the COP of freezing cycle device 1000.
As shown in Figure 9, in embodiments more of the present utility model, freezing cycle device 1000 also includes assisting stream 900, auxiliary stream 900 to be connected with the outlet side 33 of pressure piping 4 and low pressure escape pipe 3 respectively, and auxiliary stream 900 is in series with the second throttling arrangement 700 and control valve 800.
Specifically, the first end of auxiliary stream 900 is connected between first throttle device 600 and pressure piping 4, and the second end of auxiliary stream 900 is connected between low pressure escape pipe 3 and gas returning port b, and control valve 800 can be stop valve or single-pass electromagnetic valve.Second throttling arrangement 700 plays the effect of reducing pressure by regulating flow, and alternatively, the second throttling arrangement 700 is capillary tube.
It follows that when freezing cycle device 1000 freezes, control valve 800 is opened, the coolant flowed out from first throttle device 600 can be drained in gas returning port b after mixing with the coolant discharged from low pressure escape pipe 3 after the reducing pressure by regulating flow again of the second throttling arrangement 700.When freezing cycle device 1000 heats, control valve 800 may be at closed mode.Such that it is able to reduce the temperature of the coolant being discharged to gas returning port b; thus reduce the temperature of the coolant discharged from the air vent a of compressor 200; the temperature avoiding the air vent a of compressor 200 is too high and compressor 200 causes disadvantageous phenomenon, plays the effect of protection compressor 200.
The refrigeration system 2000 according to this utility model embodiment is described in detail below with reference to Figure 10.
Refrigeration system 2000 according to this utility model embodiment, including: compressor 200, outdoor heat exchanger 400, indoor heat exchanger 500, first throttle device 600 and gas-liquid separator 100, compressor 200 has air vent a and gas returning port b.The two ends of outdoor heat exchanger 400 the first end with air vent a and first throttle device 600 respectively is connected.
First import and export 42 of pressure piping 4 are connected with the second end of first throttle device 600, second import and export 41 of pressure piping 4 are connected with the first end of indoor heat exchanger 500, the upper end of low-pressure inlet pipe 2 is connected with the second end of indoor heat exchanger 500, and the outlet side 33 of low pressure escape pipe 3 is connected with gas returning port b.
It should be noted that refrigerant circulation process when freezing with freezing cycle device 1000 according to refrigerant circulation process during refrigeration system 2000 refrigerating operaton of this utility model embodiment is identical, and it is described in detail above-mentioned, has the most just repeated no more.
Refrigeration system 2000 according to this utility model embodiment, by being provided with gas-liquid separator 100, coolant in pressure piping 4 carries out heat exchange with the coolant in separated space 10, so that gas-liquid separator 100 has simultaneously worked as the effect of subcooler, regenerator and gas-liquid separation, add degree of supercooling and the degree of superheat of refrigeration system 2000, thus improve the refrigerating efficiency of compressor 200, improve the COP of refrigeration system 2000.
As shown in Figure 10, in embodiments more of the present utility model, refrigeration system 2000 also includes assisting stream 900, auxiliary stream 900 to be connected with the outlet side 33 of pressure piping 4 and low pressure escape pipe 3 respectively, and auxiliary stream 900 is in series with the second throttling arrangement 700 and control valve 800.
Specifically, the first end of auxiliary stream 900 is connected between first throttle device 600 and pressure piping 4, and the second end of auxiliary stream 900 is connected between low pressure escape pipe 3 and gas returning port b, and control valve 800 can be stop valve or check valve.When control valve 800 is check valve, check valve is at one-way conduction on the first end of auxiliary stream 900 to the direction of the second end of auxiliary stream 900.Second throttling arrangement 700 plays the effect of reducing pressure by regulating flow, and alternatively, the second throttling arrangement 700 is capillary tube.
It follows that the coolant from first throttle device 600 outflow can be drained in gas returning port b after mixing with the coolant discharged from low pressure escape pipe 3 after the reducing pressure by regulating flow again of the second throttling arrangement 700.Such that it is able to reduce the temperature of the coolant being discharged to gas returning port b; thus reduce the temperature of the coolant discharged from the air vent a of compressor 200; the temperature avoiding the air vent a of compressor 200 is too high and compressor 200 causes disadvantageous phenomenon, plays the effect of protection compressor 200.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is exemplary, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in the range of this utility model, revises, replace and modification by those of ordinary skill in the art.
Claims (13)
1. a gas-liquid separator, it is characterised in that including:
Cylinder, limits separated space in described cylinder；
Low-pressure inlet pipe, it is interior to enter the coolant treating gas-liquid separation that one end of described low-pressure inlet pipe extend into described separated space；
Low pressure escape pipe, it is interior to discharge the gaseous coolant in described separated space that described low pressure escape pipe extend into described separated space, and the part being positioned at described separated space bottom of described low pressure escape pipe is provided with oil return opening；
Be suitable to circulate the pressure piping of coolant, and described pressure piping has and is positioned at described separated space and carries out the heat exchange pipeline part of heat exchange with the coolant with described separated space, and described pressure piping has the first import and export and the second import and export stretching out described cylinder.
Gas-liquid separator the most according to claim 1, it is characterised in that be provided with bolster in described low-pressure inlet pipe.
Gas-liquid separator the most according to claim 2, it is characterised in that a part of tube wall of described low-pressure inlet pipe bends inwards to limit described bolster after separating with remaining tube wall.
Gas-liquid separator the most according to claim 1, it is characterised in that the part of the outlet side being positioned at described separated space and neighbouring described low pressure escape pipe of described low pressure escape pipe is provided with return-air hole.
Gas-liquid separator the most according to claim 1, it is characterised in that described heat exchange pipeline part is formed as general " U " shape.
Gas-liquid separator the most according to claim 1, it is characterised in that also include that filter, described filter are located at described oil return opening.
Gas-liquid separator the most according to claim 1, it is characterised in that be cased with heat exchange fin outside in described heat exchange pipeline part.
Gas-liquid separator the most according to claim 1, it is characterised in that the bottom of described low-pressure inlet pipe extends downward beyond the inlet end of described low pressure escape pipe.
Gas-liquid separator the most according to claim 1, it is characterized in that, the outlet side of described low pressure escape pipe and the line of centres of the inlet end of described low pressure escape pipe and, angle between the outlet side of described low pressure escape pipe and the line of centres of described low-pressure inlet pipe be A, described A ＞ 0.
10. a freezing cycle device, it is characterised in that including:
Compressor, described compressor has air vent and gas returning port；
Commutation assembly, described commutation assembly includes that the first valve port is to the 4th valve port, one of them connection in described first valve port and the second valve port and the 3rd valve port, described 4th valve port connects with another in described second valve port and described 3rd valve port, and described first valve port is connected with described air vent；
Outdoor heat exchanger and indoor heat exchanger, the two ends of described outdoor heat exchanger the first end with described second valve port and first throttle device respectively is connected, and the first end of described indoor heat exchanger is connected with described 3rd valve port；
According to the gas-liquid separator according to any one of claim 1-9, described the first of described pressure piping is imported and exported and is connected with the second end of described first throttle device, described the second of described pressure piping is imported and exported and is connected with the second end of described indoor heat exchanger, the upper end of described low-pressure inlet pipe is connected with described 4th valve port, and the outlet side of described low pressure escape pipe is connected with described gas returning port.
11. freezing cycle devices according to claim 10, it is characterized in that, also including assisting stream, described auxiliary stream outlet side with described pressure piping and described low pressure escape pipe respectively is connected, and described auxiliary stream is in series with the second throttling arrangement and control valve.
12. 1 kinds of refrigeration systems, it is characterised in that including:
Compressor, described compressor has air vent and gas returning port；
Outdoor heat exchanger, the two ends of described outdoor heat exchanger the first end with described air vent and first throttle device respectively is connected；
Indoor heat exchanger and according to the gas-liquid separator according to any one of claim 1-9, described the first of described pressure piping is imported and exported and is connected with the second end of described first throttle device, described the second of described pressure piping is imported and exported and is connected with the first end of described indoor heat exchanger, the upper end of described low-pressure inlet pipe is connected with the second end of described indoor heat exchanger, and the outlet side of described low pressure escape pipe is connected with described gas returning port.
13. refrigeration systems according to claim 12, it is characterised in that also including assisting stream, described auxiliary stream outlet side with described pressure piping and described low pressure escape pipe respectively is connected, and described auxiliary stream is in series with the second throttling arrangement and control valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040620.4U CN205425555U (en) | 2015-12-14 | 2015-12-14 | Vapour and liquid separator and have its refrigerating cycle device, refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040620.4U CN205425555U (en) | 2015-12-14 | 2015-12-14 | Vapour and liquid separator and have its refrigerating cycle device, refrigerating system |
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| CN205425555U true CN205425555U (en) | 2016-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402964A (en) * | 2015-12-14 | 2016-03-16 | 广东美的暖通设备有限公司 | Gas-liquid separator, refrigerating circulating device with gas-liquid separator and refrigerating system |
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2015
- 2015-12-14 CN CN201521040620.4U patent/CN205425555U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402964A (en) * | 2015-12-14 | 2016-03-16 | 广东美的暖通设备有限公司 | Gas-liquid separator, refrigerating circulating device with gas-liquid separator and refrigerating system |
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