CN215724321U - Gas-liquid separation auxiliary device and air conditioner - Google Patents
Gas-liquid separation auxiliary device and air conditioner Download PDFInfo
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- CN215724321U CN215724321U CN202121753466.0U CN202121753466U CN215724321U CN 215724321 U CN215724321 U CN 215724321U CN 202121753466 U CN202121753466 U CN 202121753466U CN 215724321 U CN215724321 U CN 215724321U
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Abstract
The utility model provides a gas-liquid separation auxiliary device and an air conditioner, and relates to the field of air conditioners. The gas-liquid separation auxiliary device is applied to an air conditioner and comprises at least one heat pipe, wherein the heat pipe comprises an evaporation section and a condensation section, and the evaporation section can be arranged on the outer side of a shell of a compressor of the air conditioner and is used for recovering heat of the compressor; the condensing section can be arranged outside a shell of a gas-liquid separator of the air conditioner and used for heating the gas-liquid separator. The gas-liquid separation auxiliary device recovers the heat of the compressor, is used for heating the gas-liquid separator, improves the evaporation rate and the evaporation efficiency of the refrigerant in the gas-liquid separator, does not additionally increase energy consumption, saves the cost, saves the energy and improves the energy utilization rate. In addition, by using the gas-liquid separation auxiliary device, the performance of the air conditioner can be improved without changing the structure of the compressor or the gas-liquid separator, namely, without adding any other structure or control system, and the function upgrade of the air conditioner is realized.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a gas-liquid separation auxiliary device and an air conditioner.
Background
When the air conditioning unit operates in a low-temperature environment, because heat exchange is poor, incomplete evaporation is easy to occur, and low-temperature liquid refrigerant returns to the gas-liquid separator, so that the working reliability of the whole machine is influenced, and particularly, the condition is worse when the excessive amount of additional refrigerant is not normatively installed.
In the prior art, a refrigerant is generally heated by adding electric heating in a gas-liquid separator, so as to improve the evaporation efficiency of the refrigerant. However, the gas-liquid separator is complicated in structure and requires high energy consumption, which increases the cost, in the method of electrically heating to assist gas-liquid separation.
SUMMERY OF THE UTILITY MODEL
The first objective of the present invention is to provide a gas-liquid separation auxiliary device, so as to solve the technical problems of the prior art that the structure of the gas-liquid separator becomes complicated, the energy consumption is increased, and the cost is increased by the electric heating auxiliary gas-liquid separation mode.
The gas-liquid separation auxiliary device provided by the utility model is applied to an air conditioner, and comprises at least one heat pipe, wherein the heat pipe comprises an evaporation section and a condensation section, and the evaporation section can be arranged on the outer side of a shell of a compressor of the air conditioner and is used for recovering heat of the compressor; the condensation section can be arranged on the outer side of a shell of a gas-liquid separator of the air conditioner and used for heating the gas-liquid separator.
The gas-liquid separation auxiliary device provided by the utility model can produce the following beneficial effects:
when the gas-liquid separation auxiliary device provided by the utility model is used, the evaporation section of the heat pipe is arranged on the outer side of the shell of the air conditioner compressor, and the condensation section is arranged on the outer side of the shell of the air conditioner gas-liquid separator. After the compressor is started to operate, the temperature of the shell of the compressor rises, so that the temperature of working media in the evaporation section and the evaporation section also rises, when the temperature rises to the boiling point of the working media, the working media can be evaporated and carry heat to flow to the condensation section, after the working media reach the condensation section, high-temperature gas gives off the heat and heats the gas-liquid separator, and after the refrigerant in the gas-liquid separator absorbs the heat, the evaporation rate and the evaporation efficiency are both improved. Namely, the gas-liquid separation auxiliary device provided by the utility model recovers the heat of the compressor and is used for heating the gas-liquid separator, so that the evaporation rate and the evaporation efficiency of the refrigerant in the gas-liquid separator are improved, and not only is the energy consumption not additionally increased and the cost saved, but also the energy is saved and the energy utilization rate is improved.
In addition, the gas-liquid separation auxiliary device is arranged outside the compressor and the gas-liquid separator, the structure of the compressor or the gas-liquid separator is not required to be changed, namely, any other structure or control system is not required to be added, the performance of the air conditioner can be improved, and the function upgrade of the air conditioner is realized.
In addition, the gas-liquid separation auxiliary device is also beneficial to improving the performance of the compressor. When the air conditioner is in a low-temperature heating mode and stably runs, on one hand, a part of heat of the compressor is recovered by the heat pipe, so that the compressor oil in the compressor is not easy to gasify and circulates along with the flowing of a refrigerant; on the other hand, the compressor oil in the gas-liquid separator is more likely to be carried back into the compressor by the refrigerant due to the increased temperature and improved fluidity, that is, the oil return of the compressor is improved. When the air conditioner is in a low-temperature refrigeration mode and stably operates, the heat pipe can increase the superheat degree of return air and improve return air parameters by recycling the heat of the compressor for the gas-liquid separator, and because the compression process of the compressor can be equivalent to an entropy-fixing process, when the parameters of the suction pressure and the exhaust pressure are not changed, the initial state parameters and the final state parameters are in direct proportion, the return air temperature is higher, the exhaust temperature is higher, the problem of insufficient exhaust superheat degree is solved, and the reliability of the compressor is improved.
Further, the gas-liquid separation auxiliary device is applied to an air conditioner with the lowest position of a compressor lower than the highest position of a gas-liquid separator, and the heat pipe is a thermosiphon.
Under this technical scheme, the heat pipe adopts the thermosiphon, need not to set up the imbibition core in the tube shell, simple structure. During the use, the heat pipe is vertical to be placed, and the evaporation zone is under, the condensation segment is last, and liquid working medium can lean on gravity backward flow in the heat pipe to can effectively avoid gaseous backward flow and influence work efficiency.
Furthermore, the number of the heat pipes is one, the heat pipes are of a double-ring structure, the evaporation section and the condensation section are both in a spiral shape, the evaporation section is sleeved outside the shell of the compressor, and the condensation section is sleeved outside the shell of the gas-liquid separator.
Under the technical scheme, the evaporation section is wound on the outer side of the shell of the compressor, the contact area with the compressor is large, and the heat absorption effect is good; the condensation segment winds the outer side of the shell of the gas-liquid separator, the contact area of the condensation segment with the gas-liquid separator is large, and the heating effect on the gas-liquid separator is good.
Furthermore, the cross section of the heat pipe is rectangular, and when the heat pipe is in a vertical state, the width dimension of the cross section of the heat pipe is smaller than the height dimension of the heat pipe.
Under this technical scheme, the heat pipe is the flat structure, can laminate the shell surface of compressor and vapour and liquid separator better to the heat transfer can be better.
Further, the evaporation section is matched with a middle shell of the compressor, and the condensation section is matched with a bottom shell of the gas-liquid separator.
Under this technical scheme, the high temperature gas in the condensation segment can heat the liquid refrigerant of vapour and liquid separator bottom to can effectively avoid the liquid refrigerant to stay in the condition of vapour and liquid separator bottom.
Furthermore, the material of the heat pipe is copper, aluminum or iron.
Under this technical scheme, the material selection range of heat pipe is wide, can select according to the location of product.
Further, the total volume of the working medium in the heat pipe in the liquid state is not more than half of the total volume of the gas-liquid separator.
Under this technical scheme, guaranteed that the working medium is when changing into gaseous state by the liquid, to the demand of space to can guarantee that the working medium normally circulates in the heat pipe.
Further, in the heat pipe, the boiling point of the working medium is greater than or equal to 30 ℃ and lower than the surface temperature of the compressor during stable operation.
Under the technical scheme, the boiling point of the working medium is more than or equal to 30 ℃, so that when the compressor is started, the heat pipe can not absorb the heat of the compressor too much, the heating of an electric heating belt on the oil of the compressor can be avoided, and the quick start of the compressor can be ensured; and the boiling point of the working medium is lower than the surface temperature of the compressor during stable operation, so that the heat pipe can work normally during the stable operation of the compressor.
Further, the working medium is water, acetone, ethanol, ethane, ammonia or mercury.
Under this technical scheme, the optional scope of working medium is wide, as for the boiling point of working medium in the heat pipe, can realize the regulation to the working medium boiling point through the atmospheric pressure in adjusting the heat pipe, for example: at 5KPa, the boiling point of water is 32.874 deg.C, so if water is selected as working medium, the absolute pressure value in the heat pipe is recommended to be 5 KPa; the data such as petrochemical industry basic manual can be inquired about the air pressure value corresponding to other media.
A second object of the present invention is to provide an air conditioner, which solves the technical problems of the prior art that the structure of the gas-liquid separator becomes complicated, the energy consumption is increased, and the cost is increased by the electric heating auxiliary gas-liquid separation mode.
The air conditioner provided by the utility model comprises a gas-liquid separator, a compressor and the gas-liquid separation auxiliary device, wherein the evaporation section of a heat pipe of the gas-liquid separation auxiliary device is arranged on the outer side of a shell of the compressor and is used for recovering the heat of the compressor; and the condensation section of the heat pipe of the gas-liquid separation auxiliary device is arranged outside the shell of the gas-liquid separator and used for heating the gas-liquid separator. The air conditioner has all the advantages of the gas-liquid separation auxiliary device, and therefore, the details are not described herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic partial structural diagram of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an auxiliary gas-liquid separation apparatus according to an embodiment of the present invention;
FIG. 3 is a second schematic structural view of an auxiliary device for gas-liquid separation according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the operation process of the horizontal straight heat pipe.
Description of reference numerals:
100-a heat pipe; 110-an evaporation section; 120-a condensation section; 200-a gas-liquid separator; 300-compressor.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The present embodiment provides a gas-liquid separation auxiliary device, as shown in fig. 1 to 3, the gas-liquid separation auxiliary device is applied to an air conditioner, the gas-liquid separation auxiliary device includes at least one heat pipe 100, the heat pipe 100 includes an evaporation section 110 and a condensation section 120, the evaporation section 110 can be disposed outside a shell of a compressor 300 of the air conditioner for recovering heat of the compressor 300; the condensing section 120 can be disposed outside a casing of the gas-liquid separator 200 of the air conditioner for heating the gas-liquid separator 200.
In the auxiliary device for gas-liquid separation according to this embodiment, the evaporation section 110 of the heat pipe 100 is disposed outside the casing of the air conditioner compressor 300, and the condensation section 120 is disposed outside the casing of the air conditioner gas-liquid separator 200. After the compressor 300 is started to operate, the temperature of the shell of the compressor rises, so that the temperature of the evaporation section 110 and the temperature of the working medium in the evaporation section 110 also rise, when the temperature rises to the boiling point of the working medium, the working medium can evaporate and carry heat to flow to the condensation section 120, after the working medium reaches the condensation section 120, the high-temperature gas gives off heat to heat the gas-liquid separator 200, and after the refrigerant in the gas-liquid separator 200 absorbs the heat, the evaporation rate and the evaporation efficiency are both improved. That is, the gas-liquid separation auxiliary device provided in this embodiment recovers heat of the compressor 300, and is used to heat the gas-liquid separator 200, thereby improving the evaporation rate and the evaporation efficiency of the refrigerant in the gas-liquid separator 200, and not only does not additionally increase energy consumption and save cost, but also saves energy and improves the energy utilization rate.
In addition, the gas-liquid separation auxiliary device is arranged outside the compressor 300 and the gas-liquid separator 200, and the performance of the air conditioner can be improved without changing the structure of the compressor 300 or the gas-liquid separator 200, namely, without adding any other structure or control system, so that the function upgrade of the air conditioner is realized.
In addition, the auxiliary device for gas-liquid separation is also beneficial to improving the performance of the compressor 300. When the air conditioner is in a low-temperature heating mode and stably operates, on one hand, a part of heat of the compressor 300 is recovered by the heat pipe 100, so that compressor oil in the compressor 300 is not easy to gasify and circulates along with the flowing of a refrigerant; on the other hand, the compressor oil in the gas-liquid separator 200 is more likely to be carried back into the compressor 300 by the refrigerant due to its increased temperature and improved fluidity, that is, the oil return from the compressor 300 is improved. When the air conditioner is in a low-temperature refrigeration mode and stably operates, the heat pipe 100 can increase the superheat degree of return air and improve return air parameters by recycling heat of the compressor 300 for the gas-liquid separator 200, and since the compression process of the compressor 300 can be equivalent to an entropy-fixing process, when the parameters of suction pressure and discharge pressure are not changed, initial state parameters and final state parameters are in direct proportion, the higher the return air temperature is, the higher the discharge air temperature is, thereby being beneficial to solving the problem of insufficient discharge superheat degree and improving the reliability of the compressor 300.
Fig. 4 is a schematic diagram of the operation process of the horizontal straight heat pipe, from which the basic operation process of the gas-liquid separation auxiliary device provided in the present embodiment can be further understood. In fig. 4, the working process of the horizontal straight heat pipe is as follows:
s100, after the compressor 300 is started, the working medium in the evaporation section 110 starts to recover heat emitted by the compressor 300;
s200, gasifying the liquid working medium in the evaporation section 110, and flowing to a low-temperature area under the action of pressure difference;
s300, heating the gas-liquid separator 200 by the heat of the gaseous working medium, converting the heated gaseous working medium into a liquid state, and refluxing under the action of pressure difference and gravity;
and S400, reheating the refluxed liquid working medium by the compressor 300 in the high-temperature region, gasifying the liquid working medium, flowing to the low-temperature region again, and performing reciprocating circulation.
Specifically, in the present embodiment, the auxiliary device for gas-liquid separation is applied to an air conditioner in which the lowest part of the compressor is lower than the highest part of the gas-liquid separator, and the heat pipe 100 is a thermosiphon. The heat pipe 100 adopts a thermosiphon, and no wick is required to be arranged in the pipe shell, so that the structure is simple. When the heat pipe 100 is used, the heat pipe 100 is vertically placed, the evaporation section 110 is arranged below and the condensation section 120 is arranged above, and liquid working medium in the heat pipe 100 can flow back by gravity, so that the phenomenon that the working efficiency is influenced by gas backflow can be effectively avoided.
Specifically, in this embodiment, the number of the heat pipes 100 is one, the heat pipe 100 has a double-loop structure, the evaporation section 110 and the condensation section 120 are both spiral, the evaporation section 110 is sleeved outside the shell of the compressor 300, and the condensation section 120 is sleeved outside the shell of the gas-liquid separator 200. In such an arrangement, the evaporation section 110 is wound around the outer side of the shell of the compressor 300, and has a large contact area with the compressor 300 and a good heat absorption effect; the condensing section 120 is wound around the outer side of the casing of the gas-liquid separator 200, and has a large contact area with the gas-liquid separator 200, thereby having a good heating effect on the gas-liquid separator 200.
It should be noted that, in other embodiments of the present application, the heat pipe 100 is not limited to one, nor to a double-coil structure and a spiral shape, for example: the number of the heat pipes 100 can also be multiple, and the evaporation sections 110 of the multiple heat pipes 100 are arranged around the outside of the shell of the compressor 300, and the axes of the evaporation sections are parallel to the axis of the shell of the compressor 300; the condensation sections 120 of the heat pipes 100 are arranged around the outer side of the shell of the gas-liquid separator 200, and the axes of the condensation sections are parallel to the axis of the shell of the gas-liquid separator 200, so that the heat of the compressor 300 is recovered by the heat pipes 100 and the gas-liquid separator 200 is heated.
Specifically, in the present embodiment, the cross section of the heat pipe 100 is rectangular, and when the heat pipe 100 is in the vertical state, the width dimension of the cross section is smaller than the height dimension. In this arrangement, the heat pipe 100 has a flat structure, and can be better attached to the surfaces of the casings of the compressor 300 and the gas-liquid separator 200, thereby better transferring heat.
Specifically, in the present embodiment, the evaporation section 110 is matched with the middle housing of the compressor 300, and the condensation section 120 is matched with the bottom housing of the gas-liquid separator 200. In this arrangement, the high-temperature gas in the condensation section 120 can heat the liquid refrigerant at the bottom of the gas-liquid separator 200, so that the situation that the liquid refrigerant is left at the bottom of the gas-liquid separator 200 can be effectively avoided.
Specifically, in the present embodiment, the material of the heat pipe 100 is copper, aluminum or iron. The material selection range of the heat pipe 100 is wide, and the material selection range can be selected according to the product positioning. Of course, in other embodiments of the present application, the heat pipe 100 may also be made of other heat conductive materials, that is, the specific material of the heat pipe may not be limited in the present application as long as the heat pipe can recover the heat of the compressor 300 and transfer the heat to the gas-liquid separator 200 to heat the gas-liquid separator 200.
Specifically, in the present embodiment, the total volume of the working medium in the liquid state in the heat pipe 100 is not more than half of the total volume of the gas-liquid separator 200. The volume of the working medium is increased when the working medium is converted from the liquid state to the gaseous state, so that the requirement for space is met when the working medium is converted from the liquid state to the gaseous state, and normal circulation of the working medium in the heat pipe 100 can be guaranteed.
Specifically, in the present embodiment, the boiling point of the working medium in the heat pipe 100 is greater than or equal to 30 ℃ and lower than the surface temperature of the compressor during stable operation. The boiling point of the working medium is greater than or equal to 30 ℃, so that when the compressor 300 is started, the heat pipe 100 can not absorb the heat of the compressor 300 too much, thereby avoiding influencing the heating of the electric heating belt on the compressor oil, and further ensuring the normal starting of the compressor 300; and the boiling point of the working medium is lower than the surface temperature of the compressor 300 during stable operation, so that the heat pipe 100 can work normally during stable operation of the compressor 300.
Specifically, in this embodiment, the working medium is water, acetone, ethanol, ethane, ammonia, or mercury. The optional range of the working medium is wide, and as for the boiling point of the working medium in the heat pipe 100, the adjustment of the boiling point of the working medium can be realized by adjusting the air pressure in the heat pipe 100, for example: at 5KPa, the boiling point of water is 32.874 deg.C, so if water is selected as working medium, the absolute pressure value in the heat pipe 100 is recommended to be 5 KPa; the data such as petrochemical industry basic manual can be inquired about the air pressure value corresponding to other media. Of course, in other embodiments of the present application, the working medium is not limited to the above-described medium, i.e., the selection of the working medium may not be limited by the present application as long as it can recover heat of the compressor 300 and heat the gas-liquid separator 200.
The present embodiment further provides an air conditioner, which includes a gas-liquid separator 200, a compressor 300 and the gas-liquid separation auxiliary device, wherein the evaporation section 110 of the heat pipe 100 of the gas-liquid separation auxiliary device is disposed outside the casing of the compressor 300, and is used for recovering heat of the compressor 300; the condensing section 120 of the heat pipe 100 of the gas-liquid separation assisting apparatus is disposed outside the casing of the gas-liquid separator 200, and is used for heating the gas-liquid separator 200.
Finally, it is further noted that, herein, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The gas-liquid separation auxiliary device is characterized by being applied to an air conditioner and comprising at least one heat pipe (100), wherein the heat pipe (100) comprises an evaporation section (110) and a condensation section (120), and the evaporation section (110) can be arranged outside a shell of a compressor (300) of the air conditioner and is used for recovering heat of the compressor (300); the condensing section (120) can be arranged outside a shell of a gas-liquid separator (200) of the air conditioner and used for heating the gas-liquid separator (200).
2. The gas-liquid separation assisting apparatus according to claim 1, wherein the gas-liquid separation assisting apparatus is applied to an air conditioner in which a lowest part of a compressor is lower than a highest part of a gas-liquid separator, and the heat pipe (100) is a thermosiphon.
3. The gas-liquid separation auxiliary device according to claim 1 or 2, wherein the number of the heat pipe (100) is one, the heat pipe (100) has a double-loop structure, the evaporation section (110) and the condensation section (120) are both helical, the evaporation section (110) is used for being sleeved outside a shell of the compressor (300), and the condensation section (120) is used for being sleeved outside a shell of the gas-liquid separator (200).
4. The gas-liquid separation assisting apparatus according to claim 3, wherein the heat pipe (100) has a rectangular cross section, and a width dimension of the cross section is smaller than a height dimension of the heat pipe (100) in a vertical state.
5. The gas-liquid separation assisting device according to claim 3, wherein the evaporation section (110) is matched with a middle housing of the compressor (300), and the condensation section (120) is matched with a bottom housing of the gas-liquid separator (200).
6. The gas-liquid separation assisting apparatus according to claim 3, wherein the heat pipe (100) is made of copper, aluminum, or iron.
7. The gas-liquid separation assisting apparatus according to claim 3, wherein a total volume of the working medium in the liquid state in the heat pipe (100) is not more than a half of a total volume of the gas-liquid separator (200).
8. The gas-liquid separation assist device according to claim 7, wherein a boiling point of the working medium in the heat pipe (100) is 30 ℃ or higher and lower than a surface temperature at which the compressor operates stably.
9. The gas-liquid separation assisting device according to claim 7, wherein the working medium is water, acetone, ethanol, ethane, ammonia, or mercury.
10. An air conditioner, characterized in that it comprises a gas-liquid separator (200), a compressor (300) and the gas-liquid separation auxiliary device of any one of claims 1-9, and the evaporation section (110) of the heat pipe (100) of the gas-liquid separation auxiliary device is arranged outside the shell of the compressor (300) for recovering the heat of the compressor (300); and the condensation section (120) of the heat pipe (100) of the gas-liquid separation auxiliary device is arranged outside the shell of the gas-liquid separator (200) and used for heating the gas-liquid separator (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121753466.0U CN215724321U (en) | 2021-07-29 | 2021-07-29 | Gas-liquid separation auxiliary device and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121753466.0U CN215724321U (en) | 2021-07-29 | 2021-07-29 | Gas-liquid separation auxiliary device and air conditioner |
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| Publication Number | Publication Date |
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| CN215724321U true CN215724321U (en) | 2022-02-01 |
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| CN202121753466.0U Active CN215724321U (en) | 2021-07-29 | 2021-07-29 | Gas-liquid separation auxiliary device and air conditioner |
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Effective date of registration: 20221026 Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Patentee before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |