CN210179948U - Gas-liquid separation device and compression system - Google Patents

Abstract

The utility model belongs to the technical field of gas-liquid separation, specifically provide a gas-liquid separation device and compression system. The utility model discloses aim at solving the current not good problem of gas-liquid separation device oil return. Therefore, the gas-liquid separation device comprises a main body formed with a gas-liquid separation cavity, a blocking component arranged in the gas-liquid separation cavity, a moving component and a connecting component, wherein the moving component is connected with the main body through the connecting component, the moving component and the blocking component are jointly arranged, the moving component can move to a position attached to the blocking component through the connecting component, so that the gas-liquid separation cavity can be divided into two sealed cavities by the blocking component and the moving component, the upper cavity can be used for storing lubricating oil mixed in a medium, and the lower cavity can be used as an independent cavity; the moving member is also movable to a position separated from the blocking member by the connecting member to communicate the entire gas-liquid separation chamber so that the lubricating oil in the upper chamber can flow into the lower chamber.

Description

Gas-liquid separation device and compression system

Technical Field

The utility model belongs to the technical field of gas-liquid separation, specifically provide a gas-liquid separation device and compression system.

Background

For equipment involving conversion of the medium gas-liquid state, a gas-liquid separation device is a component which must be provided for such equipment. Taking an air conditioner as an example, the existing air conditioners are all provided with gas-liquid separation devices, the gas-liquid separation devices can separate a gaseous refrigerant and a liquid refrigerant which return to a compressor from an evaporator, and then only the gaseous refrigerant enters the compressor, so that the problem that the liquid refrigerant enters the compressor to damage a lubricating effect or damage a scroll is effectively avoided; meanwhile, the gas-liquid separation device can also send lubricating oil mixed with the refrigerant back to the compressor, so that the lubricating effect inside the compressor is effectively guaranteed. Therefore, the gas-liquid separation device is indispensable for the air conditioner, but although the gas-liquid separation device is widely applied, the existing gas-liquid separation device still has many defects.

Specifically, the existing gas-liquid separation device sprays gas-liquid mixed refrigerant into a closed space, then separates the liquid refrigerant from the gaseous refrigerant under the action of acceleration and gravity, and stores lubricating oil mixed in the refrigerant at the bottom of the gas-liquid separation device. The existing gas-liquid separation device mainly comprises two modes of conveying lubricating oil back to a compressor: one is to open a hole at the bottom of the exhaust pipe of the gas-liquid separation device and then bring the lubricating oil back to the compressor by the injection effect generated during the exhaust, and the oil return mode has the disadvantages that the oil return resistance is large, and the lubricating oil needs to flow through a long pipeline, so the pressure loss is also large, and a heating device needs to be started to heat the pipeline under the low temperature condition, so the problem that the lubricating oil is difficult to flow under the low temperature condition is avoided; the other is that an oil return pipe is arranged at the bottom of the gas-liquid separation device and then is directly connected into the compressor, although the pressure loss can be reduced by the oil return mode, the oil return efficiency of the oil return mode is extremely low because the pressure difference between the gas-liquid separation device and the compressor is small.

Accordingly, there is a need in the art for a new gas-liquid separation device and compression system that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, be the not good problem of the oil return mode of solving current gas-liquid separation device promptly, the utility model provides a gas-liquid separation device, gas-liquid separation device is in including the main part that is formed with the gas-liquid separation chamber and setting the component, removal component and the connecting member that block of gas-liquid separation intracavity, the removal component passes through the connecting member with the main part links to each other, the removal component with block the component and set up jointly to: the moving member can move to a position where the moving member is attached to the blocking member through the connecting member, so that the blocking member and the moving member can divide the gas-liquid separation chamber into two sealed chambers; and the moving member is also movable to a position separated from the blocking member by the connecting member to integrally communicate the entire gas-liquid separation chamber.

In a preferred embodiment of the above gas-liquid separation apparatus, the blocking member is disposed on a side wall of the gas-liquid separation chamber in a surrounding manner.

In a preferred embodiment of the above gas-liquid separator, the blocking member has a plate-like structure.

In a preferred embodiment of the above gas-liquid separator, the connecting member is an elastic member.

In a preferred embodiment of the above gas-liquid separation apparatus, the moving member has a cylindrical structure, and a bottom surface of the cylindrical structure is provided toward the stopper member.

In a preferred embodiment of the above gas-liquid separator, a seal structure is provided between the stopper member and the moving member.

In a preferred technical solution of the above gas-liquid separation device, a first filtering member is disposed at an oil outlet of the gas-liquid separation device.

The utility model also provides a compression system, compression system includes compressor, oil separator and gas-liquid separation device, gas-liquid separation device be in the preferred technical scheme of arbitrary above-mentioned, gas-liquid separation device's gas outlet with the air inlet of compressor links to each other, the oil-out of compressor with oil separator's entry links to each other, oil separator's export with gas-liquid separator's bottom communicates, gas-liquid separation device's oil-out with the compressor links to each other.

In a preferred embodiment of the above compression system, an oil outlet of the gas-liquid separation device is connected to the compressor through a throttle member.

In a preferred embodiment of the compression system, a second filtering member, an electromagnetic valve, and a check valve are sequentially disposed between the outlet of the oil separator and the gas-liquid separator.

As can be understood by those skilled in the art, in the technical solution of the present invention, the gas-liquid separation device of the present invention includes a main body formed with a gas-liquid separation chamber, and a blocking member, a moving member and a connecting member disposed in the gas-liquid separation chamber, through which a gaseous medium and a liquid medium can be separated, the moving member is connected to the main body through the connecting member, so that the moving member can move through the connecting member, and the moving member and the blocking member are jointly disposed as: the moving member can move to a position where the moving member is attached to the blocking member through the connecting member, so that the blocking member and the moving member can divide the gas-liquid separation chamber into two sealed chambers, in which case the sealed chamber above the blocking member and the moving member can be used for storing lubricating oil entrained in a medium, and the sealed chamber below the blocking member and the moving member can be used as an independent chamber; further, the moving member can be moved to a position separated from the stopper member by the connecting member to integrally communicate the entire gas-liquid separation chamber, and in this case, the lubricating oil stored in the chamber above the stopper member and the moving member can flow into the chamber below the stopper member and the moving member so that the lubricating oil can be introduced into other devices to be circulated.

Further, as a preferable technical solution, the blocking member is circumferentially disposed on the sidewall of the gas-liquid separation chamber, so that the moving member can achieve the effect of the separation chamber only by blocking the hole formed in the middle of the blocking member, thereby effectively ensuring the reliability of the separation. In addition, the blocking member is preferably of a plate-shaped structure, the plate-shaped structure can effectively save the internal space of the cavity, and meanwhile, the blocking member of the plate-shaped structure is more beneficial to being attached to the moving member to realize the effect of separating the cavity.

Further, as a preferred technical solution, the connecting member is an elastic member, that is, the moving member is connected with the main body through the elastic member, so that the moving member can automatically realize the movement between different positions under the action of different pressure differences through the elastic member, thereby realizing the movement of the moving member without any electronic element.

Further, as a preferable mode, the moving member is a cylindrical structure, and a bottom surface of the cylindrical structure is disposed toward the blocking member, so that the lubricating oil stored in the cavity above the blocking member and the moving member can flow into the cavity below the blocking member and the moving member along an outer side wall of the cylindrical structure to perform a drainage function.

Further, as a preferable technical solution, the sealing structure is arranged between the blocking member and the moving member, so as to effectively improve the tightness of the combination between the blocking member and the moving member, thereby effectively ensuring that two independent closed spaces can be formed on two sides of the blocking member and the moving member.

Further, as a preferred technical scheme, a first filtering member is arranged at an oil outlet of the gas-liquid separation device so as to filter impurities in the lubricating oil, and therefore the lubricating effect of the lubricating oil is effectively guaranteed.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a gas-liquid separation apparatus of the present invention;

fig. 2 is a schematic diagram of a preferred embodiment of the compression system of the present invention.

Reference numerals: 11. a gas-liquid separation device; 111. a main body; 112. a blocking member; 113. a moving member; 114. an elastic member; 115. a first filter member; 116. an air inlet pipe; 117. an air outlet pipe; 118. an oil inlet; 119. an oil outlet; 12. a compressor; 13. an oil separator; 14. a capillary tube; 15. a second filter member; 16. an electromagnetic valve; 17. a one-way valve.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, although the description is made in conjunction with the case where the gas-liquid separation device of the present invention is used in an air conditioner, it is obvious that the gas-liquid separation device of the present invention can also be used in other apparatuses as long as the apparatuses need to realize the gas-liquid separation function. Such changes in the applied objects do not depart from the basic principle of the present invention, and therefore, all will fall within the scope of the present invention.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring first to fig. 1, a schematic structural view of a preferred embodiment of the gas-liquid separation apparatus of the present invention is shown. As shown in fig. 1, the utility model discloses a gas-liquid separation device 11 is in including main part 111 and the setting that is formed with the gas-liquid separation chamber blocking member 112, removal member 113 and elastic component 114 in the gas-liquid separation chamber, wherein, the top of main part 111 still is provided with intake pipe 116 and outlet duct 117, intake pipe 116 and outlet duct 117 all with the gas-liquid separation chamber is linked together, and in gas-liquid separation device 11's working process, the heat transfer medium of gas-liquid mixture attitude enters into through intake pipe 116 in the gas-liquid separation chamber, gaseous state heat transfer medium directly discharges through outlet duct 117, and liquid state heat transfer medium then needs last evaporation in the gas-liquid separation chamber just can discharge through outlet duct 117 until becoming gaseous state heat transfer medium. In the preferred embodiment, the air inlet pipe 116 is L-shaped, so that the heat exchange medium entering the gas-liquid separation chamber through the air inlet pipe 116 can impact the inner wall of the main body 111, thereby forming a rotating airflow moving downwards, and further effectively improving the flow rate of the gaseous heat exchange medium and the evaporation effect of the liquid heat exchange medium. It can be understood by those skilled in the art that the present invention does not limit the specific structure, number and setting position of the gas inlet tube 116 and the gas outlet tube 117, as long as the gas-liquid mixture state of the heat transfer medium can enter the gas-liquid separation chamber through the gas inlet tube 116, and the gas state heat transfer medium in the gas-liquid separation chamber can be discharged through the gas outlet tube 117, and the skilled person can set the specific structure, number and setting position of the gas inlet tube 116 and the gas outlet tube 117 by himself according to the actual use requirement.

Further, the bottom of the main body 111 is further provided with an oil inlet 118 and an oil outlet 119, and the lubricating oil in the gas-liquid separation chamber can flow out through the oil outlet 119, and meanwhile, the external lubricating oil can directly flow into the gas-liquid separation chamber through the oil inlet 118. It should be noted that the utility model discloses do not make any restriction to the concrete shape, quantity and the setting position of oil inlet 118 and oil-out 119, as long as lubricating oil in the gas-liquid separation chamber can flow out through oil-out 119 to outside lubricating oil can directly flow in through oil inlet 118 in the gas-liquid separation chamber can, the technical staff can set for the concrete shape, the quantity and the setting position of oil inlet 118 and oil-out 119 by oneself according to the actual use demand. As a preferred embodiment, a first filtering member 115 is disposed at the oil outlet 119, so that the lubricating oil in the gas-liquid separation chamber can be filtered by the first filtering member 115 and then discharged, thereby effectively ensuring the cleanliness of the lubricating oil. It will be appreciated by those skilled in the art that the first filter member 115 may not be provided at the oil outlet 119, i.e. the lubricating oil may also be filtered by an external filter member; meanwhile, the present invention does not limit the specific structure of the first filtering member 115, and the technician can set the specific structure of the first filtering member 115 according to the actual use requirement, for example, the first filtering member 115 can be a filter net or other structures with filtering function.

Referring next to fig. 1, in the present preferred embodiment, the moving member 113 is connected to the bottom of the main body 111 by an elastic member 114, so that the moving member 113 can move up and down by the elastic member 114. When the pressure below the blocking member 112 is higher than the pressure above the blocking member 112, the elastic member 114 extends to move the moving member 113 upward to a position where the moving member 112 is attached, so that the blocking member 112 and the moving member 113 divide the gas-liquid separation chamber into upper and lower two separate sealed chambers, thereby preventing the lubricating oil stored above the blocking member 112 and the moving member 113 from flowing into the chambers below the blocking member 112 and the moving member 113; when the pressure below the blocking member 112 is lower than the pressure above the blocking member 112, the elastic member 114 is shortened to move the moving member 113 downward to a position separated from the blocking member 112, thereby allowing the entire gas-liquid separation chamber to communicate, and thus allowing the lubricating oil stored above the blocking member 112 and the moving member 113 to flow into the cavity below the blocking member 112 and the moving member 113. It should be noted that, although the connection member described in the present preferred embodiment is the elastic member 114, and the elastic member 114 is preferably a spring; however, the connecting member may also be other structures, such as a telescopic rod, etc., and the specific structure of the connecting member may be set by a technician according to actual use requirements, as long as the moving member 113 can move through the connecting member.

Further, in the present preferred embodiment, the blocking member 112 is a plate-shaped structure, and the blocking member 112 is disposed on the sidewall of the gas-liquid separation chamber in a surrounding manner such that a circular through hole is formed in the middle of the blocking member 112 for the passage of the lubricating oil. It should be noted that, although the blocking member 112 in the preferred embodiment is a plate-shaped structure, the blocking member 112 may obviously be other structures, such as a block-shaped structure; meanwhile, the utility model discloses do not make any restriction to the concrete shape and the setting position of blocking member 112, the technical staff can be according to the actual use demand by oneself setting for. The moving member 113 in the preferred embodiment is a circular cylindrical structure, and the bottom surface of the moving member 113 is disposed toward the blocking member 112, and the bottom surface of the moving member 113 can completely cover the circular through hole formed by the blocking member 112, so that the blocking member 112 and the moving member 113 can divide the gas-liquid separation chamber into two upper and lower independent closed spaces. It will be understood by those skilled in the art that although the moving member 113 is described in the preferred embodiment as having a circular cylindrical structure, it is obvious that the moving member 113 may have other shapes as long as the moving member 113 can divide the gas-liquid separation chamber into two upper and lower independent sealed spaces when attached to the blocking member 112. In other words, the technician can set the specific shape and the arrangement position of the moving member 113 and the blocking member 112 according to the actual use requirement, as long as the moving member 113 and the blocking member 112 can perform the function of separating the closed space when combined. It is further preferable that a sealing structure is provided between the moving member 113 and the blocking member 112 so as to effectively enhance the blocking effect of the moving member 113 and the blocking member 112; in addition, the technician may set the specific structural form of the sealing structure according to the actual use requirement, for example, the sealing structure may be a rubber sealing ring, as long as the sealing structure can enhance the tightness of the joint between the moving member 113 and the blocking member 112.

Further, two oil separators 13 are provided on both sides of the gas-liquid separation device 11, and of course, the gas-liquid separation device 11 may be directly connected to the oil separators 13 or indirectly connected to the oil separators 13 by other means. In addition, it should be noted that the present invention does not limit the specific structure, number and installation position of the oil separators 13, and a technician can select the type of the oil separator 13 and set the number and installation position of the oil separators 13 according to the actual use requirement.

Referring next to fig. 2, a schematic diagram of a preferred embodiment of the compression system of the present invention is shown. As shown in fig. 2, the compression system of the present invention includes a compressor 12 and the gas-liquid separator 11 and the oil separator 13 described in the above preferred embodiment, wherein the gas outlet pipe 117 of the gas-liquid separator 11 is connected to the gas inlet of the compressor 12, the oil outlet of the compressor 12 is connected to the inlet of the oil separator 13, the outlet of the oil separator 13 is connected to the oil inlet 118 of the gas-liquid separator 11, and the second filtering member 15, the electromagnetic valve 16 and the check valve 17 are sequentially disposed between the outlet of the oil separator 13 and the oil inlet 118 of the gas-liquid separator 11, and the oil outlet 119 of the gas-liquid separator 11 is connected to the oil inlet of the compressor 12 through the capillary tube 14. Here, it should be noted that although the throttling member is the capillary tube 14 in the preferred embodiment, it is obvious to a skilled person that other throttling members may be selected according to actual use requirements. Furthermore, it can be understood by those skilled in the art that although the connection relationship among the gas-liquid separation device 11, the compressor 12 and the oil separator 13 is described in detail in the preferred embodiment, it is obvious to those skilled in the art that the specific connection relationship among the gas-liquid separation device 11, the compressor 12 and the oil separator 13 can be adjusted according to the actual use requirement, and the adjustment of the specific connection relationship does not deviate from the basic principle of the present invention, and belongs to the protection scope of the present invention. In addition, it should be noted that although the gas-liquid separation device 11 in the preferred embodiment is connected with two compressors 12 and two oil separators 13, the specific number of the connections can be changed obviously, and the technician can set the number of other components connected with the gas-liquid separation device 11 according to the actual use requirement, and the change of the specific number does not deviate from the basic principle of the present invention, and belongs to the protection scope of the present invention.

During the operation of the compression system, when the electromagnetic valve 16 and the one-way valve 17 are simultaneously opened, the lower part of the blocking member 112 belongs to the high-pressure side, the elastic member 114 extends, the moving member 113 moves upwards to a position attached to the blocking member 112, at the moment, the blocking member 112 and the moving member 113 divide the gas-liquid separation cavity into an upper sealed cavity and a lower sealed cavity, and the lubricating oil stored above the blocking member 112 and the moving member 113 cannot flow into the cavities below the blocking member 112 and the moving member 113; in this case, the oil discharged from the oil outlet of the compressor 12 enters the oil separator 13, is filtered by the second filtering member 15, then flows into the oil inlet 118 of the gas-liquid separating device 11 through the electromagnetic valve 16 and the check valve 17 and enters the lower cavity of the gas-liquid separating chamber to be buffered, flows through the first filtering member 115 to be filtered, flows into the capillary tube 14 through the oil outlet 119 of the gas-liquid separating device 11, and finally flows back to the oil inlet of the compressor 12 through the capillary tube 14, so that the whole oil return process is realized. When the electromagnetic valve 16 and the check valve 17 are closed simultaneously, the upper side of the blocking member 112 is the high pressure side, the elastic member 114 is shortened, and the moving member 113 moves downward to a position separated from the blocking member 112, at this time, the entire gas-liquid separation chamber is in a communicated state, and the lubricating oil stored above the blocking member 112 and the moving member 113 can flow into the cavity below the blocking member 112 and the moving member 113 along the side wall of the moving member 113; it should be noted that lubricating oil may be entrained in the heat exchange medium, and since the gas-liquid separation device 11 can only discharge gas, the lubricating oil will accumulate at the bottom of the gas-liquid separation chamber; in this case, the lubricating oil stored above the blocking member 112 and the moving member 113 can flow into the cavity below the blocking member 112 and the moving member 113 along the side wall of the moving member 113, then flow through the first filtering member 115 to be filtered, flow into the capillary tube 14 through the oil outlet 119 of the gas-liquid separation device 11, and finally flow back to the compressor 12 through the capillary tube 14, so that the whole oil return process is realized, since there is a pressure difference between the upper side and the lower side of the blocking member 112, and the oil outlet 119 of the gas-liquid separation device 11 can be connected to the compressor 12 only through the short capillary tube 14, therefore, the oil return process can return oil efficiently and reduce pressure loss effectively. In addition, the two oil return processes are realized by only one capillary tube 14, so that the structure of the compression system is simplified, and the whole structure of the compression system is effectively simplified on the basis of effectively overcoming the defects of the existing oil return mode.

So far, the technical solution of the present invention has been described with reference to the accompanying drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A gas-liquid separation device is characterized by comprising a main body which is provided with a gas-liquid separation cavity, and a blocking component, a moving component and a connecting component which are arranged in the gas-liquid separation cavity,

the moving member is connected to the body by the connecting member, the moving member and the blocking member being collectively configured to: the moving member can move to a position where the moving member is attached to the blocking member through the connecting member, so that the blocking member and the moving member can divide the gas-liquid separation chamber into two sealed chambers; and the moving member is also movable to a position separated from the blocking member by the connecting member to integrally communicate the entire gas-liquid separation chamber.

2. The gas-liquid separation device according to claim 1, wherein the blocking member is provided in a surrounding manner on a side wall of the gas-liquid separation chamber.

3. The gas-liquid separation device according to claim 2, wherein the blocking member is a plate-like structure.

4. The gas-liquid separation device according to claim 2, wherein the connection member is an elastic member.

5. The gas-liquid separation device according to claim 4, wherein the moving member is a cylindrical structure, and a bottom surface of the cylindrical structure is disposed toward the blocking member.

6. The gas-liquid separation device according to any one of claims 1 to 5, wherein a seal structure is provided between the blocking member and the moving member.

7. The gas-liquid separation device according to any one of claims 1 to 5, characterized in that a first filter member is provided at an oil outlet of the gas-liquid separation device.

8. A compression system, comprising a compressor, an oil separator, and a gas-liquid separation device according to any one of claims 1 to 7,

the gas outlet of the gas-liquid separation device is connected with the gas inlet of the compressor, the oil outlet of the compressor is connected with the inlet of the oil separator, the outlet of the oil separator is communicated with the bottom of the gas-liquid separator, and the oil outlet of the gas-liquid separation device is connected with the oil inlet of the compressor.

9. The compression system of claim 8, wherein an oil outlet of the gas-liquid separation device is connected to the compressor through a throttle member.

10. The compression system of claim 8, wherein a second filter member, a solenoid valve, and a check valve are sequentially disposed between the outlet of the oil separator and the gas-liquid separating device.

Images