WO2023065679A1

WO2023065679A1 - Oil-gas separation apparatus for condenser, condenser, and refrigeration device

Info

Publication number: WO2023065679A1
Application number: PCT/CN2022/096608
Authority: WO
Inventors: 陈增辉; 张捷; 郑修新
Original assignee: 青岛海尔空调电子有限公司; 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2021-10-18
Filing date: 2022-06-01
Publication date: 2023-04-27
Also published as: CN113945034A

Abstract

The present application relates to the technical field of refrigeration devices, and discloses an oil-gas separation apparatus for a condenser. A condenser comprises a cylinder body, the cylinder body comprising a tube plate end, and the oil-gas separation device comprises: a tank body, a separation cavity being defined in the tank body, one end of the tank body being constructed as a sealing plate end and detachably connected to the tube plate end, and the other end of the tank body being constructed as a sealing head end; a first baffle, extending downwards perpendicular to an axial direction of the tank body and disposed in the separation cavity, and configured to divide the separation cavity into a first separation area located between the first baffle and the sealing head end, and a second separation area located between the sealing plate end and the first baffle; an air inlet tube disposed at the sealing head end along the axial direction of the tank body, one end of the air inlet tube being blocked and extending into the first separation area, and provided with a flaring tube having an upward opening; an air outlet tube disposed in the second separation area and positioned at an upper part of the tank body; and an oil outlet tube disposed at the bottom of the tank body. This integrates oil-gas separation functionality into a condenser. The present application also discloses a condenser and a refrigeration device.

Description

Oil and gas separation device for condenser, condenser and refrigeration equipment

This application is based on a Chinese patent application with application number 202111210150.1 and a filing date of October 18, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of refrigeration equipment, for example, to an oil-gas separation device for a condenser, a condenser and refrigeration equipment.

Background technique

Refrigeration oil in refrigeration equipment plays the role of lubricating and cooling working parts. Since the refrigeration oil is mostly a medium that is miscible with the refrigerant, the refrigeration oil will inevitably leave the compressor with the refrigerant and enter the pipeline, evaporator and condenser during the process of participating in the refrigeration cycle, and deposit more in the form of liquid oil droplets in the condenser and evaporator. In the case of quantitative injection of refrigeration oil, this deposition phenomenon will cause vicious failures such as lack of oil in the compressor and the temperature of the internal components of the compressor will rise and burn. At the same time, too much refrigerated oil adheres to the surface of the heat exchange tube wall, which will reduce the heat exchange efficiency of the heat exchanger, resulting in a decrease in the cooling effect of the unit and an increase in energy consumption. In severe cases, it will cause a unit failure alarm. If the oil separator is installed separately, it will increase the volume of the air conditioning system and increase the pressure drop of the air conditioning system. There is a kind of refrigeration equipment in which the oil separator is built into the condenser to reduce the air conditioning system connection components and reduce the pressure drop. However, such an oil separator is long and difficult to install, and it occupies the heat exchange tube inside the condenser The layout space of the condenser will increase the space occupied by the condenser or reduce the heat exchange capacity.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide an oil-gas separation device for a condenser, a condenser, and refrigeration equipment, so as to improve the convenience of installation, maintenance and replacement of the oil-gas separation device, and reduce the occupied heat exchange space of the condenser.

In some embodiments, in the oil-gas separation device for a condenser, the condenser includes a cylinder body, wherein the cylinder body includes a tube sheet end, and the oil-gas separation device includes: a tank body, which defines a separation One end of the tank body is configured as a sealing plate end, which is detachably connected with the tube sheet end, and the other end of the tank body is configured as a head end; The axial downward extension of the body is arranged in the separation chamber, and is configured to divide the separation chamber into a first separation area between the first baffle plate and the head end and a first separation area located between the The second separation area between the sealing plate end and the first baffle plate; the air inlet pipe is arranged at the head end along the axial direction of the tank body, and one end of the air inlet pipe is blocked and extends into the In the first separation area, a flaring pipe with an upward opening is provided; the air outlet pipe is arranged in the second separation area and is located on the upper part of the tank body; the oil outlet pipe is arranged at the bottom of the tank body; wherein, the The first separation area is communicated with the second separation area, and the refrigerant flowing into the tank through the air inlet pipe enters the first separation area through the flared pipe and flows to the second separation area, The separated gaseous refrigerant can be sent out through the gas outlet pipe, and the liquid oil can be sent out through the oil outlet pipe.

In some embodiments, an opening is formed between the first baffle plate and the bottom of the tank body, and the oil-gas separation device further includes: an equalizer plate arranged on the tank body along the axial direction The first separation area is arranged below the air intake pipe, and the height of the flow equalizer is higher than the height of the opening. After being separated by the flow equalizer, the refrigerant flows through the opening to the Second separation area.

In some embodiments, the flow uniform plate is provided with a plurality of through holes, and the diameters of the plurality of through holes gradually decrease from the middle of the flow uniform plate to the edges of the flow uniform plate.

In some embodiments, the flow equalizer is an arc-shaped plate with a downwardly recessed middle, and a through hole is provided at the lowest position.

In some embodiments, the oil-gas separation device further includes: a gas-liquid separation assembly arranged in the second separation area along the axial direction of the tank, and the height of the gas-liquid separation assembly is higher than or equal to the The height of the above-mentioned equalizer plate is used to separate the gaseous refrigerant and oil in the refrigerant flowing to the second separation area.

In some embodiments, the gas-liquid separation assembly includes a filter screen, the opening diameter of the filter screen ranges from 2mm to 50mm, and the thickness of the filter screen ranges from 10mm to 90mm.

In some embodiments, the oil-gas separation device further includes: a baffle assembly, disposed in the second separation area, and between the gas-liquid separation assembly and the gas outlet pipe, so as to prevent the flow of gas and liquid passing through the gas-liquid The refrigerant in the separation component is baffled and separated.

In some embodiments, the baffle assembly includes a plurality of baffles, the baffles are arranged along the axial extension of the tank body, and an S-shaped channel is formed between two adjacent baffles .

In some embodiments, the condenser includes the aforementioned oil-gas separation device for the condenser.

In some embodiments, the cylinder body further includes a head end of the water chamber, the end of the head end of the water chamber is provided with a water inlet pipe and an outlet pipe, and the end of the tube plate is provided with a connecting cylinder joint so that the seal plate A circulating water chamber that can cooperate with the water inlet pipe and the water outlet pipe is formed between the tube plate end and the tube plate end.

In some embodiments, the refrigeration equipment includes the aforementioned condenser.

The oil-gas separation device for the condenser, the condenser and the refrigeration equipment provided by the embodiments of the present disclosure can achieve the following technical effects:

By configuring one end of the tank as a plate end, which is detachably connected to the tube plate end of the condenser, the first baffle divides the separation chamber into a first separation area and a second separation area communicating with each other, wherein, The refrigerant that flows into the tank through the intake pipe enters the first separation area through the flared pipe and flows to the second separation area. During this process, the oil in the gaseous refrigerant is separated as much as possible, and the separated gaseous refrigerant can pass through the outlet. The air pipe is sent out, and the liquid oil can be sent out through the oil outlet pipe. In this way, the condenser can be integrated with the oil-gas separation function, which reduces the heat exchange space of the condenser occupied by it and reduces the cost. At the same time, when the oil-gas separation device is not needed, it is only necessary to separate the tube plate end from the sealing plate end, which facilitates the installation, maintenance and replacement of the oil-gas separation device used in the condenser.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 is a schematic structural diagram of an oil-gas separation device for a condenser provided by an embodiment of the present disclosure;

2 is a schematic cross-sectional view of an oil-gas separation device for a condenser provided by an embodiment of the present disclosure;

3 is a schematic cross-sectional view of another oil-gas separation device for a condenser provided by an embodiment of the present disclosure (the direction of the arrow in the figure is the flow direction of the refrigerant);

Fig. 4 is a schematic structural view of a flow equalizer provided by an embodiment of the present disclosure;

Fig. 5 is a schematic structural diagram of a condenser provided by an embodiment of the present disclosure;

Fig. 6 is a schematic cross-sectional view of a condenser provided by an embodiment of the present disclosure.

Reference signs:

100, cylinder body; 110, tube plate end; 111, connecting cylinder section; 120, water chamber head end;

121, water inlet pipe; 122, water outlet pipe;

200, tank body; 210, separation cavity; 220, sealing plate end; 230, sealing head end;

310, intake pipe; 311, flared pipe; 320, air outlet pipe; 330, oil outlet pipe;

410, the first baffle; 411, the opening;

420, equalizer plate; 421, through hole;

430. Gas-liquid separation component;

440, a baffle assembly; 441, a baffle; 4411, a first sub-baffle; 4412, a second sub-baffle.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.

In addition, the terms "setting", "connecting" and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments of the present disclosure may be combined with each other.

Fig. 1 is a schematic structural view of an oil-gas separation device for a condenser provided by an embodiment of the present disclosure; Fig. 2 is a schematic cross-sectional view of an oil-gas separation device for a condenser provided by an embodiment of the present disclosure; Fig. 3 is an embodiment of the present disclosure Another schematic cross-sectional view of an oil-gas separation device for a condenser provided in the example (the direction of the arrow in the figure is the flow direction of the refrigerant). Fig. 5 is a schematic structural view of a condenser provided by an embodiment of the present disclosure; Fig. 6 is a schematic cross-sectional view of a condenser provided by an embodiment of the present disclosure. Referring to FIG. 1 to FIG. 3 , FIG. 5 and FIG. 6 , an embodiment of the present disclosure provides an oil-gas separation device for a condenser. The condenser includes a cylinder 100 , wherein the cylinder 100 includes a tube sheet end 110 . The oil-gas separation device for the condenser includes a tank body 200 , an air inlet pipe 310 , an air outlet pipe 320 , an oil outlet pipe 330 and a first baffle 410 . The inside of the tank body 200 defines a separation cavity 210 , wherein one end of the tank body 200 is configured as a plate end 220 detachably connected to the tube plate end 110 , and the other end of the tank body 200 is configured as a head end 230 . The first baffle 410 extends downward along the axial direction perpendicular to the tank body 200 and is disposed in the separation cavity 210 , and is configured to divide the separation cavity 210 into a second section between the first baffle 410 and the head end 230 . A separation area and a second separation area located between the closure end 220 and the first baffle 410 . The air inlet pipe 310 is arranged at the end of the head along the axial direction of the tank body 200. One end of the air inlet pipe 310 is blocked and extends into the first separation area, and a flaring pipe 311 with an upward opening is provided. The gas outlet pipe 320 is arranged in the second separation area and is located at the upper part of the tank body 200 ; the oil outlet pipe 330 is arranged at the bottom of the tank body 200 . Wherein, the first separation area and the second separation area are connected, the refrigerant flowing into the tank body 200 through the inlet pipe 310 enters the first separation area through the flared pipe 311 and flows to the second separation area, and the separated gaseous refrigerant can pass through the outlet The gas pipe 320 is sent out, and the liquid oil can be sent out through the oil outlet pipe 330 .

Optionally, the barrel body 100 of the condenser includes a tube sheet end 110 disposed at one end thereof, and the oil-gas separation device for the condenser includes a tank body 200, wherein one end of the tank body 200 is configured as a sealing plate end 220, and It is detachably connected to the tube sheet end 110. Optionally, the sealing plate end 220 is flange-connected to the tube plate end 110 . In this way, the installation, disassembly or maintenance of the oil-gas separation device for the condenser can be facilitated. Optionally, the cylinder body 100 has a circular cross-sectional shape, the tank body 200 has a circular cross-sectional shape, and the axes of the cylinder body 100 and the tank body 200 coincide. In this way, it is helpful to improve the stability of the oil-gas separation device used in the condenser installed after the condenser.

Optionally, the other end of the tank body 200 is configured as a head end 230, the air inlet pipe 310 is arranged at the head end 230 along the axial direction of the tank body 200, the air outlet pipe 320 is arranged on the upper part of the tank body 200, and the oil outlet pipe 330 is arranged At the bottom of the tank body 200 , the first baffle plate 410 extends downward along a direction perpendicular to the axial direction of the tank body 200 and is disposed inside the separation chamber 210 . In this way, after the refrigerant flowing into the tank 200 through the inlet pipe 310 is separated by the flaring pipe 311 and the first baffle 410 , the gaseous refrigerant can be sent out through the air outlet pipe 320 , and the liquid oil can be sent out through the oil outlet pipe 330 . Among them, the gaseous refrigerant sent out through the outlet pipe 320 enters the cylinder 100 through the refrigerant inlet of the condenser to participate in the refrigeration cycle, and the oil sent out through the oil outlet pipe 330 can be sent to the compressor. The liquid oil mentioned here refers to lubricating oil. Optionally, the axis of the air inlet pipe 310 coincides with the axis of the tank body 200 , or the axis of the air inlet pipe 310 is located above the tank body 200 .

Optionally, the first baffle 410 extends downward along the axis perpendicular to the tank body 200 and is disposed in the separation chamber 210 . The first baffle 410 divides the separation chamber 210 into a first separation area and a second separation area. The first separation area and the second separation area communicate with each other, wherein the first separation area is formed between the first baffle plate 410 and the head end 230, and the second separation area is formed between the end plate end 220 and the first baffle plate 410. separate areas. The oil-gas separation device for the condenser is installed between the condenser and the compressor. Since the gaseous refrigerant discharged from the compressor may be mixed with lubricating oil, once the lubricating oil enters the condenser, it will reduce the heat exchange of the condenser. effect, so it needs to be separated. The gaseous refrigerant discharged from the compressor enters the device through the inlet pipe 310 of the oil-gas separation device for the condenser, passes through the function of the flared pipe 311, and passes through the first separation area and flows to the second separation area. The separated gaseous refrigerant can be sent out through the gas outlet pipe 320, and the liquid oil can be sent out through the oil outlet pipe 330. The liquid oil mentioned here refers to the lubricating oil of the compressor.

Optionally, the opening of the flaring tube 311 is set facing directly above the tank body 200 , that is, the angle between the opening of the flaring tube 311 and the horizontal direction is greater than or equal to 90°. Optionally, the opening of the flaring tube 311 is inclined toward the upper part of the tank body 200 , that is, the angle between the opening of the flaring tube 311 and the horizontal direction is greater than 0° and less than 90°. On the one hand, the cross-sectional area of the inlet pipe 310 at the outlet of the tank body 200 can be increased through the arrangement of the flared pipe 311, and the cross-sectional area becomes larger rapidly, and the air flow is dispersed in a disordered state; on the other hand, the flared pipe 311 The opening is set directly above the tank body 200 or inclined towards the upper part of the tank body 200, the refrigerant gas flow entering the tank body 200 flows upward or obliquely upward, and the refrigerant and the oil droplets mixed therein move upward through the action of inertia and The gravity effect realizes the separation of the refrigerant airflow and the oil, and the separated lubricating oil is in the form of droplets. Optionally, when the refrigerant airflow entering the tank body 200 has a relatively high flow rate, the preliminary separation of the airflow and oil droplets can be achieved by colliding with the side wall of the tank body 200 and/or the first baffle plate 410 .

Optionally, the cross-sectional shape of the flaring tube 311 is circular, square or rectangular.

Optionally, the sealing end 220 is provided with a flat cover, which is in a flat structure, so as to facilitate connection with the tube sheet end 110 .

Using the oil-gas separation device for a condenser provided by the embodiment of the present disclosure, one end of the tank body 200 is configured as a sealing plate end 220, which is detachably connected to the tube plate end 110 of the condenser, and the first baffle plate 410 The separation chamber 210 is divided into a first separation area and a second separation area which communicate with each other, wherein the refrigerant flowing into the tank body 200 through the inlet pipe 310 enters the first separation area through the flared pipe 311 and flows to the second separation area. During this process, the oil in the gaseous refrigerant is separated as much as possible, the separated gaseous refrigerant can be sent out through the air outlet pipe 320 , and the liquid oil can be sent out through the oil outlet pipe 330 . In this way, the condenser can be integrated with the oil-gas separation function, which reduces the heat exchange space of the condenser occupied by it and reduces the cost. At the same time, when the oil-gas separation device is not needed, it is only necessary to separate the tube plate end from the sealing plate end, which facilitates the installation, maintenance and replacement of the oil-gas separation device used in the condenser.

In some embodiments, a first separation area is formed between the first baffle 410 and the head end 230, and an opening 411 is formed between the first baffle 410 and the bottom of the tank body 200 for the oil and gas of the condenser. The separation device also includes a flow equalizer 420 . The flow uniformity plate 420 is disposed in the first separation area along the axial direction of the tank body 200 , and is located below the intake pipe 310 , and the height of the flow distribution plate 420 is higher than that of the opening 411 .

Optionally, an opening 411 is formed between the first baffle 410 and the bottom of the tank body 200 , wherein the flaring tube 311 is disposed in the first separation area. The refrigerant flowing into the tank 200 through the air intake pipe 310 passes through the flaring pipe 311 and then moves downward to the equalizer plate 420. The refrigerant and the oil droplets mixed in it further realize the air flow and oil droplets through the collision with the equalizer plate 420. Most of the oil droplets pass through the equalizer plate 420 and deposit on the bottom of the tank 200, and the gaseous refrigerant passes through the opening 411 to the direction of the outlet pipe 320 under the action of the pressure difference between the inlet pipe 310 and the outlet pipe 320 keep moving.

Optionally, the flow distribution plate 420 is arranged in the first separation area along the axial direction of the tank body 200, and is located below the intake pipe 310, and the height of the flow distribution plate 420 is higher than the height of the opening 411, and the refrigerant passes through the distribution spacer. After the separation of the flow plate, the flow passes through the opening to the second separation area. The arrangement of the equalizer plate 420 along the axial direction of the tank body 200 can improve its stability and separation effect on oil droplets.

Fig. 4 is a schematic structural diagram of a flow equalizer provided by an embodiment of the present disclosure. As shown in FIG. 4 , in some embodiments, the flow equalizer 420 is provided with a plurality of through holes 421 , and the apertures of the plurality of through holes 421 gradually decrease from the middle of the flow equalizer 420 to the edge of the flow equalizer 420 . Since the flow equalizer 420 is arranged below the air intake pipe 310, the middle part of the flow equalizer 420 will be blocked by the air intake pipe 310, so that the air flow in the middle part of the flow equalizer will not be affected by the air flow through the flaring pipe 311 when it moves downward to the flow equalizer 420. The plate 420 cannot achieve the effect of impacting the air flow to achieve separation. However, the oil droplets separated from other areas on the flow equalizing plate 420 that collide with the air flow may stay in the flow equalizing plate 420 under the action of tension and viscous force. By gradually reducing the diameter of the plurality of through holes 421 from the middle of the flow uniformity plate 420 to the edge of the flow uniformity plate 420, the oil droplets flowing to the middle of the flow uniformity plate 420 can be promoted to drop downwards, improving the efficiency of oil separation. Effect.

In some embodiments, the flow equalizer 420 is an arc-shaped plate with a downwardly recessed middle, and a through hole 421 is provided at the lowest position thereof. By setting the equalizer plate 420 as an arc-shaped plate with a downward depression in the middle, and setting a through hole 421 at its lowest position, the downward mobility of the separated oil droplets can be further improved, thereby improving the separation effect on the oil droplets and collection function.

In some embodiments, the oil-gas separation device for the condenser further includes a gas-liquid separation assembly 430, the gas-liquid separation assembly 430 is arranged in the second separation area along the axial direction of the tank body 200, and the height of the gas-liquid separation assembly is higher than Or it is equal to the height of the equalizing plate 420 , which is used to separate the gaseous refrigerant and the oil in the refrigerant flowing to the second separation area.

Optionally, a second separation area is formed between the first baffle plate 410 and the sealing plate end 220, and further separation of oil droplets in the gas flow is achieved in the second separation area. Wherein, the gas-liquid separation assembly 430 is arranged in the second separation area along the axial direction of the tank body 200, and the height of the gas-liquid separation assembly 430 is higher than or equal to the height of the flow uniformity plate 420. , will also be mixed with smaller diameter oil droplets, after flowing through the opening 411, the separation efficiency of the smaller diameter oil droplets can be improved through the separation effect of the gas-liquid separation assembly 430.

In some embodiments, the gas-liquid separation assembly 430 includes a filter screen, the opening diameter of the filter screen ranges from 2 mm to 50 mm, and the thickness of the filter screen ranges from 10 mm to 90 mm. The refrigerant flowing through the opening 411 moves upward, and a small amount of small oil droplets are entrained in the gaseous refrigerant passing through the filter. These small oil droplets are filtered through the filter, and the small oil droplets are blocked by the filter and fall. The gaseous refrigerant After passing through the filter screen, it continues to move upwards to the second separation area until it is discharged from the air outlet pipe 320, so as to further separate the oil entrained in the gaseous refrigerant. Optionally, the filter is preferably a wire filter. Optionally, a frame is arranged around the filter screen, and the filter screen is fixedly connected with the tank body 200 and the first baffle 410 through the frame, so as to improve the stability of the filter screen. Optionally, the fixed connection is welding. Optionally, along the axial direction of the tank body 200, there are several sections of filter screens arranged at intervals.

As shown in FIG. 1 to FIG. 3 , in some embodiments, the oil-gas separation device for the condenser further includes a baffle assembly 440 , which is arranged in the second separation area and is located between the gas-liquid separation assembly 430 and the gas outlet pipe 320 , so as to baffle and separate the refrigerant passing through the gas-liquid separation assembly. In this way, after the separation of the filter screen, the refrigerant passes through the baffle effect of the baffle assembly 440 and the impact with the baffle assembly 440, so that the oil still carried in the gaseous refrigerant forms small droplets and then realizes separation, which can further improve Oil separation and separation efficiency.

In some embodiments, the baffle assembly 440 includes a plurality of baffles 441 , the baffles 441 are arranged along the axial extension of the tank body 200 , and an S-shaped channel is formed between two adjacent baffles 441 . In this way, the probability of inertial collision of the gaseous refrigerant and the flow distance of the gaseous refrigerant can be increased to the maximum efficiency, thereby increasing the separation effect on oil.

Optionally, take two baffles 441 as an example, including a first sub-baffle 4411 and a second sub-baffle 4412 . Optionally, the first sub-baffle 4411 and the second sub-baffle 4412 are sheet structures. One end of the first sub-baffle 4411 is fixedly arranged on the first baffle 410, one end of the second sub-baffle 4412 is fixedly arranged on the sealing plate end 220 of the tank body, and the first sub-baffle 4411 and the second sub-baffle An S-shaped passage is formed between the baffles 4412, that is, the gaseous refrigerant separated by the filter screen hits the first sub-baffle 4411 close to the filter, and after impact separation, the gaseous refrigerant flows along the first sub-baffle 4411 and the second sub-baffle 4411. The S-shaped channel between the two sub-baffles 4412 continues to move upwards, impacts the other second sub-baffles 4412 to be separated by impact, and then flows to the air outlet pipe 320 . Optionally, one end of the first sub-baffle 4411 is fixedly arranged on the first baffle 410, and the other end is inclined upward along the axial direction of the tank body 200; one end of the second sub-baffle 4412 is fixedly arranged on the end of the sealing plate 220 , the other end is inclined upward along the axis of the tank body 200 . In this way, it is convenient for the separated oil droplets to flow down along the first sub-baffle 4411 and the second sub-baffle 4412 after impact, so as to improve the oil separation effect.

Fig. 5 is a schematic structural view of a condenser provided by an embodiment of the present disclosure; Fig. 6 is a schematic cross-sectional view of a condenser provided by an embodiment of the present disclosure. As shown in FIG. 5 and FIG. 6 , an embodiment of the present disclosure provides a condenser, including the aforementioned oil-gas separation device for the condenser. Preferably, the condenser is a horizontal condenser.

The condenser provided by the embodiment of the present disclosure includes the aforementioned oil-gas separation device for the condenser. By configuring one end of the tank body 200 as a plate end 220, it is detachably connected to the tube plate end 110 of the condenser, wherein the refrigerant flowing into the tank body 200 through the inlet pipe 310 passes through the flared pipe 311 and the first baffle. After the plate 410 is separated, the gaseous refrigerant can be sent out of the tank body 200 through the gas outlet pipe 320 , and the liquid oil can be sent out of the tank body 200 through the oil outlet pipe 330 . In this way, the condenser can be integrated with the oil-gas separation function, which reduces the heat exchange space of the condenser occupied by it and reduces the cost. At the same time, if the oil-gas separation device for the condenser is not needed, it is only necessary to separate the tube sheet end 110 from the sealing plate end 220, which facilitates the installation and maintenance of the oil-gas separation device for the condenser replace.

In some embodiments, the cylinder body 100 also includes a water chamber head end 120, the water chamber head end 120 is provided with a water inlet pipe 121 and a water outlet pipe 122, and the tube plate end 110 is provided with a connecting cylinder joint 111, so that the seal plate end 220 and the tube plate end 110 form a circulating water chamber that can cooperate with the water inlet pipe 121 and the water outlet pipe 122 . Optionally, the connecting cylinder section 111 is sealingly connected between the tube plate end 110 and the sealing plate end 220 of the tank body. In this way, a circulating water chamber can be formed at the tube plate end 110 to realize the circulation of the flowing water in the water inlet pipe 121 and the water outlet pipe 122 of the condenser, thereby realizing heat exchange with the refrigerant in the condenser.

Optionally, the connecting cylinder section 111 is fixedly arranged on the sealing plate end 220, and when the condenser needs the oil-gas separation device for the condenser, the connecting cylinder section 111 is connected to the tube plate end through a flange. In this way, it is convenient for installation, maintenance and replacement of the oil-gas separation device for the condenser; at the same time, since the connecting cylinder section 111 is fixedly arranged at the end of the sealing plate 220, the situation of the oil-gas separation device for the condenser is not required on the condenser In this way, the head of the water chamber can be connected to the tube plate end 110 through the flange, so as to realize the circulation of the flowing water in the water inlet pipe 121 and the water outlet pipe 122 of the condenser, and save the cost of disassembling the connecting cylinder section 111 .

An embodiment of the present disclosure provides a refrigeration device, including the foregoing condenser.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

An oil-gas separation device for a condenser, the condenser includes a cylinder, wherein the cylinder includes a tube sheet end, wherein the oil-gas separation device includes:

A tank body, defining a separation cavity inside, one end of the tank body is configured as a sealing plate end, and is detachably connected to the tube sheet end, and the other end of the tank body is configured as a head end;

The first baffle extends downward along the axial direction perpendicular to the tank body, is arranged in the separation cavity, and is configured to divide the separation cavity between the first baffle and the head end and a second separation area between the sealing end and the first baffle;

An air intake pipe is arranged at the head end along the axial direction of the tank body, one end of the air intake pipe is blocked and extends into the first separation area, and a flared pipe with an upward opening is provided;

The air outlet pipe is arranged in the second separation area and is located in the upper part of the tank body;

The oil outlet pipe is arranged at the bottom of the tank;

Wherein, the first separation area communicates with the second separation area, and the refrigerant flowing into the tank body through the air intake pipe enters the first separation area through the flared pipe and flows to the second separation area. In the separation area, the separated gaseous refrigerant can be sent out through the gas outlet pipe, and the liquid oil can be sent out through the oil outlet pipe.
The oil-gas separation device according to claim 1, wherein an opening is formed between the first baffle plate and the bottom of the tank body, and the oil-gas separation device further comprises:

A flow divider is arranged in the first separation area along the axial direction of the tank, and is arranged below the intake pipe, and the height of the flow divider is higher than the height of the opening, and the refrigerant passes through the After the separation of the uniform flow plate, the flow is transferred to the second separation area through the opening.
The oil-gas separation device according to claim 2, characterized in that,

A plurality of through holes are provided on the flow uniform plate, and the diameters of the plurality of through holes gradually decrease from the middle of the flow uniform plate to the edges of the flow uniform plate.
The oil-gas separation device according to claim 2, characterized in that,

The uniform flow plate is a curved plate with a downwardly recessed middle part, and a through hole is provided at the lowest position.
The oil-gas separation device according to claim 1, wherein the oil-gas separation device further comprises:

The gas-liquid separation assembly is arranged in the second separation area along the axial direction of the tank body, and the height of the gas-liquid separation assembly is higher than or equal to the height of the uniform flow plate, and is used to divert the flow to the second separation area. The gaseous refrigerant and oil in the refrigerant in the separation area are separated.
The oil-gas separation device according to claim 5, characterized in that,

The gas-liquid separation assembly includes a filter screen, the opening diameter of the filter screen ranges from 2 mm to 50 mm, and the thickness of the filter screen ranges from 10 mm to 90 mm.
The oil-gas separation device according to claim 5, further comprising:

The baffle assembly is arranged in the second separation area and between the gas-liquid separation assembly and the air outlet pipe, so as to baffle and separate the refrigerant passing through the gas-liquid separation assembly.
The device according to claim 7, wherein the baffle assembly comprises a plurality of baffles, the baffles are arranged along the axial extension of the tank body, and two adjacent baffles An S-shaped channel is formed between the plates.
A condenser, characterized by comprising the oil-gas separation device for a condenser according to any one of claims 1 to 8.
The condenser according to claim 9, wherein the cylinder body further includes a head end of the water chamber, the head end of the water chamber is provided with a water inlet pipe and an outlet pipe, and the end of the tube plate is provided with a connecting cylinder section, so that a circulating water chamber that can cooperate with the water inlet pipe and the water outlet pipe is formed between the sealing plate end and the tube plate end.
A refrigeration device, characterized by comprising the condenser as claimed in claim 9 or 10.