CN104964492A - Vapour liquid separator for heat pump system - Google Patents
Vapour liquid separator for heat pump system Download PDFInfo
- Publication number
- CN104964492A CN104964492A CN201510400036.3A CN201510400036A CN104964492A CN 104964492 A CN104964492 A CN 104964492A CN 201510400036 A CN201510400036 A CN 201510400036A CN 104964492 A CN104964492 A CN 104964492A
- Authority
- CN
- China
- Prior art keywords
- pipe
- liquid separator
- heat pump
- oil return
- vapour liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a vapour liquid separator for a heat pump system. The vapour liquid separator comprises a shell, an inlet pipe, an outlet pipe and an oil return pipe. A containing cavity is defined in shell, and an oil return opening is formed in the shell. The inlet pipe is arranged on the upper portion of the shell. The outlet pipe is arranged at the top of the shell. A first end of the outlet pipe stretches into the containing cavity. The portion, stretching into the containing cavity, of the outlet pipe is a straight pipe. The oil return pipe is connected with the oil return opening and the outlet pipe. At least one part of the oil return pipe forms a capillary tube. According to the vapour liquid separator for the heat pump system, a great amount of liquid refrigerants in the vapour liquid separator are prevented from entering a compressor, meanwhile it is further avoided that the heat pump system generates the liquid impact phenomenon after defrosting is ended, the liquid impact phenomenon with liquid generated after the heat pump system is halted and when the heat pump system is restarted is further avoided, and the safety and stability of the heat pump system with the vapour liquid separator and the compressor connected with the vapour liquid separator are improved.
Description
Technical field
The present invention relates to heat pump field, especially relate to a kind of vapour liquid separator for heat pump.
Background technology
For the vapour liquid separator in heat pump, its escape pipe is generally U-shaped, uses and also there are some shortcoming and defect, specific as follows:
A, source pump are when reverse cycle defrosting, and finned heat exchanger internal condensation has stockpiled a large amount of liquid refrigerants, and after defrosting terminates, refrigerant flow switches, and the liquid refrigerants stockpiled in a large number can enter into vapour liquid separator.When the amount of liquid refrigerants exceedes certain scope, liquid refrigerants directly can enter the import of U pipe, causes compressor to suck a large amount of liquid refrigerants, occurs serious liquid hit phenomenon, can cause larger damage to compressor itself and refrigeration system;
B, after compressor emergency shutdown, refrigerant migration, liquid refrigerants can enter vapour liquid separator, and it is inner to enter U pipe by the oil return opening of U pipe.When the amount of liquid refrigerants is more than U pipe upper critical point, unit start can cause a large amount of liquid refrigerants to enter compressor, occurs serious band liquid liquid hit phenomenon, can cause larger damage to compressor itself and refrigeration system.
Summary of the invention
The present invention is intended to solve the technical problem existed in prior art.For this reason, the present invention aims to provide a kind of vapour liquid separator for heat pump, uses this vapour liquid separator can avoid occurring liquid hit phenomenon.
According to the vapour liquid separator for heat pump of the embodiment of the present invention, described heat pump comprises compressor, and described vapour liquid separator comprises: housing, limits container cavity in described housing, and described housing is provided with the oil return opening being communicated with described container cavity; Inlet pipe, described inlet pipe is located at the top of described housing and is communicated with described container cavity; Go out pipe, described in go out the top that pipe is located at described housing, described in go out pipe first end extend in described container cavity, described in go out pipe the part extending into described container cavity be straight tube, described in go out pipe the second end be suitable for being connected with described compressor; Oil return pipe, described oil return pipe connect respectively described oil return opening and described go out pipe, described oil return pipe be configured to capillary at least partially.
According to the vapour liquid separator for heat pump of the embodiment of the present invention; by the partial design stretching into container cavity going out pipe is become straight tube; and oil return pipe is designed to capillary at least partially; avoid liquid refrigerants a large amount of in vapour liquid separator and enter compressor; it also avoid heat pump and produce liquid hit phenomenon after defrosting terminates; it also avoid the band liquid liquid hit phenomenon produced when again starting shooting after heat pump is shut down, improve the security reliability of the heat pump using this vapour liquid separator and the compressor be connected with this vapour liquid separator.
In certain embodiments, described inlet pipe is located at the top of described housing.Like this, inlet pipe can be facilitated to install, and inlet pipe is all located at top with going out to manage, what also reduce vapour liquid separator takies volume.
Particularly, the port of export of described inlet pipe extend in described housing.
Advantageously, the end face of end face higher than the port of export of described inlet pipe of the first end of pipe is gone out described in.Like this, the liquid-vapor mixture entered from inlet pipe can being avoided directly to discharge from going out pipe, ensureing that liquid-vapor mixture has carried out vapor-liquid separation in container cavity.
Preferably, between the end face of the port of export of described inlet pipe and horizontal plane, there is angle.Thus, the separation of liquid in liquid-vapor mixture can be conducive to.
In certain embodiments, the angle between the end face of the port of export of described inlet pipe and horizontal plane is 15 degree-75 and spends.
In certain embodiments, the metal tube that described oil return pipe comprises capillary and is connected with described capillary, described metal tube is connected with described oil return opening, described capillary with described go out to manage be connected.Thus, the pipeline at oil return opening place can be facilitated to connect and sealing.
Preferably, the length of described capillary accounts for 1/3 of the total length of described oil return pipe.Like this, the structural advantage of capillary can be given full play to, avoid too much liquid refrigerants to flow into out pipe.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the main TV structure schematic diagram of the vapour liquid separator according to the embodiment of the present invention;
Fig. 2 is the plan structure schematic diagram of the vapour liquid separator according to the embodiment of the present invention.
Reference numeral:
Vapour liquid separator 100,
Housing 1, container cavity V, oil return opening a,
The port of export b of inlet pipe 2, inlet pipe,
Go out pipe 3, go out the first end c of pipe, go out pipe the second end d,
Oil return pipe 4, capillary 41, metal tube 42.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " highly ", " on ", D score, " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the vapour liquid separator 100 for heat pump according to the embodiment of the present invention below with reference to Fig. 1-Fig. 2, wherein, heat pump comprises compressor.
According to the vapour liquid separator 100 for heat pump of the embodiment of the present invention, as depicted in figs. 1 and 2, vapour liquid separator 100 comprises: housing 1, inlet pipe 2, go out pipe 3 and oil return pipe 4.Limit container cavity V in housing 1, inlet pipe 2 is located at the top of housing 1 and is communicated with container cavity V, goes out the top that pipe 3 is located at housing 1, and the first end c going out pipe 3 extend in container cavity V, and the second end d going out pipe 3 is suitable for being connected with compressor.In addition, housing 1 is provided with the oil return opening a being communicated with container cavity V, and oil return pipe 4 connects oil return opening a respectively and goes out pipe 3.
With reference to Fig. 1, the part extending into container cavity V going out pipe 3 is straight tube, and that is, in embodiments of the present invention, the part stretching into container cavity V going out pipe 3 is straight tube by the U pipe improvement of traditional design.By optimizing the U pipe design of vapour liquid separator 100, being optimized for straight tube by U pipe, considerably increasing the safety zone of vapour liquid separator 100, thus improving the reliability of system.
Here, safety zone refer in Fig. 1 shown in alphabetical Q from diapire in container cavity V to go out pipe 3 first end c end face region.In container cavity V, liquid measure is certain, if safety zone volume is larger, in container cavity V, hydrops height is lower, and liquid level is also larger to the distance of end face of the first end c going out pipe 3, thus the liquid in container cavity V is more not easily discharged from going out pipe 3.When heat pump defrosting or shut down cause a large amount of liquid refrigerants to enter into vapour liquid separator 100 time, because safety zone is large, liquid refrigerants also can not pass through pipe 3 and enter in compressor too much and cause liquid hammer.
With reference to Fig. 1, oil return pipe 4 be configured to capillary 41 at least partially, in FIG, the design of this optimization oil return pipe 4, be in housing 1 bottom opening, the refrigerant of accumulation in vapour liquid separator 100 and lubricating oil are discharged from bottom to greatest extent, and the refrigerant of discharge and lubricating oil get back to compressor by oil return pipe 4, to compensate the deficiency of refrigerant and lubricating oil in compressor, ensure the balance of refrigerant and lubricating oil in systemic circulation.
It should be noted that, when liquid refrigerants flows through capillary 41, flow velocity can reduce greatly, and flow also can reduce greatly.Therefore limit by capillary 41 structure, the liquid measure being back to the liquid refrigerants of compressor in vapour liquid separator 100 by oil return pipe 4 is restricted, thus when avoiding that liquid refrigerants is too much in vapour liquid separator 100, a large amount of liquid refrigerants enters compressor by oil return pipe 4 and causes liquid hammer.
According to the vapour liquid separator 100 for heat pump of the embodiment of the present invention, by the partial design stretching into container cavity V going out pipe 3 is become straight tube, and oil return pipe 4 is designed to capillary 41 at least partially, avoid liquid refrigerants a large amount of in vapour liquid separator 100 and enter compressor, it also avoid heat pump and produce liquid hit phenomenon after defrosting terminates, it also avoid the band liquid liquid hit phenomenon produced when again starting shooting after heat pump is shut down, improve the security reliability of the heat pump using this vapour liquid separator 100 and the compressor be connected with this vapour liquid separator 100.
In certain embodiments, as depicted in figs. 1 and 2, inlet pipe 2 is located at the top of housing 1, like this, inlet pipe 2 can be conveniently installed, and also be located at the top of housing 1 owing to going out pipe 3, therefore by inlet pipe 2 with go out pipe 3 and be all located at top, what also reduce vapour liquid separator 100 takies volume.Certainly, the present invention is not limited thereto, such as, inlet pipe 2 also can be located on the sidewall of housing 1.
Particularly, as shown in Figure 1, the port of export b of inlet pipe 2 extend in housing 1, and the part extend in housing 1 of inlet pipe 2 is also straight tube, and like this, inlet pipe 2 structure is simple, handling ease.
Preferably, as shown in Figure 1, between the end face of the port of export b of inlet pipe 2 and horizontal plane, there is angle theta, like this, the port of export b of inlet pipe 2 is formed as angle, and the liquid-vapor mixture entered from inlet pipe 2 sprays in container cavity V at a certain angle, instead of vertically sprays to liquid level, the internal face of liquid-vapor mixture and container cavity V is collided, is conducive to the separation of liquid in liquid-vapor mixture.
Alternatively, the angle theta between the end face of the port of export b of inlet pipe 2 and horizontal plane is 15 degree-75 and spends, and in the preferred exemplary shown in Fig. 1, the angle theta between the end face of the port of export b of inlet pipe 2 and horizontal plane is 45 degree.
Advantageously, as shown in Figure 1, go out the end face of end face higher than the port of export b of inlet pipe 2 of the first end c of pipe 3, like this, the liquid-vapor mixture entered from inlet pipe 2 can being avoided directly to discharge from going out pipe 3, ensureing that liquid-vapor mixture carries out sufficient vapor-liquid separation in container cavity V.
In certain embodiments, as shown in Figure 1, oil return pipe 4 comprises capillary 41 and metal tube 42, and one end of metal tube 42 is connected with capillary 41, and the other end of metal tube 42 is connected with oil return opening a, capillary 41 with go out pipe 3 and be connected.Wherein, be connected on oil return opening a with metal tube 42, facilitate the pipeline at oil return opening a place to connect and sealing.
Preferably, the length of capillary 41 accounts for 1/3 of the total length of oil return pipe 4, like this, can give full play to the structural advantage of capillary 41, avoids too much liquid refrigerants to flow into out pipe 3.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (8)
1. for a vapour liquid separator for heat pump, described heat pump comprises compressor, it is characterized in that, described vapour liquid separator comprises:
Housing, limits container cavity in described housing, and described housing is provided with the oil return opening being communicated with described container cavity;
Inlet pipe, described inlet pipe is located at the top of described housing and is communicated with described container cavity;
Go out pipe, described in go out the top that pipe is located at described housing, described in go out pipe first end extend in described container cavity, described in go out pipe the part extending into described container cavity be straight tube, described in go out pipe the second end be suitable for being connected with described compressor;
Oil return pipe, described oil return pipe connect respectively described oil return opening and described go out pipe, described oil return pipe be configured to capillary at least partially.
2. the vapour liquid separator for heat pump according to claim 1, is characterized in that, described inlet pipe is located at the top of described housing.
3. the vapour liquid separator for heat pump according to claim 1, is characterized in that, the port of export of described inlet pipe extend in described housing.
4. the vapour liquid separator for heat pump according to claim 3, is characterized in that, described in go out the end face of end face higher than the port of export of described inlet pipe of the first end of pipe.
5. the vapour liquid separator for heat pump according to claim 3, is characterized in that, has angle between the end face of the port of export of described inlet pipe and horizontal plane.
6. the vapour liquid separator for heat pump according to claim 5, is characterized in that, the angle between the end face of the port of export of described inlet pipe and horizontal plane is 15 degree-75 and spends.
7. the vapour liquid separator for heat pump according to claim 1, is characterized in that, the metal tube that described oil return pipe comprises capillary and is connected with described capillary, and described metal tube is connected with described oil return opening, described capillary with described go out to manage be connected.
8. the vapour liquid separator for heat pump according to claim 7, is characterized in that, the length of described capillary accounts for 1/3 of the total length of described oil return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400036.3A CN104964492A (en) | 2015-07-09 | 2015-07-09 | Vapour liquid separator for heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400036.3A CN104964492A (en) | 2015-07-09 | 2015-07-09 | Vapour liquid separator for heat pump system |
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| Publication Number | Publication Date |
|---|---|
| CN104964492A true CN104964492A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510400036.3A Pending CN104964492A (en) | 2015-07-09 | 2015-07-09 | Vapour liquid separator for heat pump system |
Country Status (1)
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| CN (1) | CN104964492A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402963A (en) * | 2015-12-21 | 2016-03-16 | 重庆美的通用制冷设备有限公司 | Refrigeration system and gas and liquid separator |
| CN106288558A (en) * | 2016-10-24 | 2017-01-04 | 珠海格力电器股份有限公司 | Gas-liquid separator, air conditioning system and control method |
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| CN2358964Y (en) * | 1997-07-10 | 2000-01-19 | 卢柱华 | Gas-Liquid separater |
| KR100553558B1 (en) * | 1999-03-31 | 2006-02-22 | 한라공조주식회사 | Oil separator |
| CN201740324U (en) * | 2010-07-29 | 2011-02-09 | 宁波奥克斯电气有限公司 | Gas-liquid separator |
| CN201748723U (en) * | 2010-07-29 | 2011-02-16 | 宁波奥克斯电气有限公司 | Gas-liquid separator for air-conditioning system |
| CN201897353U (en) * | 2010-07-29 | 2011-07-13 | 宁波奥克斯电气有限公司 | Gas-liquid separator used for air-conditioning double-compressor system |
| CN203478753U (en) * | 2013-07-29 | 2014-03-12 | 广东志高暖通设备股份有限公司 | Air-conditioning unit and gas-liquid separator thereof |
| CN203758115U (en) * | 2014-03-14 | 2014-08-06 | 安徽美芝精密制造有限公司 | Reservoir |
-
2015
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358964Y (en) * | 1997-07-10 | 2000-01-19 | 卢柱华 | Gas-Liquid separater |
| KR100553558B1 (en) * | 1999-03-31 | 2006-02-22 | 한라공조주식회사 | Oil separator |
| CN201740324U (en) * | 2010-07-29 | 2011-02-09 | 宁波奥克斯电气有限公司 | Gas-liquid separator |
| CN201748723U (en) * | 2010-07-29 | 2011-02-16 | 宁波奥克斯电气有限公司 | Gas-liquid separator for air-conditioning system |
| CN201897353U (en) * | 2010-07-29 | 2011-07-13 | 宁波奥克斯电气有限公司 | Gas-liquid separator used for air-conditioning double-compressor system |
| CN203478753U (en) * | 2013-07-29 | 2014-03-12 | 广东志高暖通设备股份有限公司 | Air-conditioning unit and gas-liquid separator thereof |
| CN203758115U (en) * | 2014-03-14 | 2014-08-06 | 安徽美芝精密制造有限公司 | Reservoir |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402963A (en) * | 2015-12-21 | 2016-03-16 | 重庆美的通用制冷设备有限公司 | Refrigeration system and gas and liquid separator |
| CN106288558A (en) * | 2016-10-24 | 2017-01-04 | 珠海格力电器股份有限公司 | Gas-liquid separator, air conditioning system and control method |
| CN106288558B (en) * | 2016-10-24 | 2018-06-22 | 珠海格力电器股份有限公司 | Automobile air conditioning system system and control method |
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Application publication date: 20151007 |
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