Liquid-gas separation device of gas-liquid mixing compressor

By using a shell assembly to separate the fluid chamber and the liquid collection chamber in the gas-liquid mixing compressor, using an impeller assembly to throw out the liquid and using a sealing assembly to control the liquid discharge, the problems of poor separation effect and poor liquid discharge pressure control in traditional methods are solved, achieving efficient gas-liquid separation and stable liquid discharge.

CN223839426UActive Publication Date: 2026-01-27HARBIN PUFA NEW ENERGY EQUIP TECH CO LTD
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Patent Information

Application Number
CN202520589932.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-01-27
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

Traditional gas-liquid mixing compressors have poor separation performance and low separation efficiency, especially under high flow rate conditions where it drops sharply. Furthermore, poor pressure control during the liquid discharge process affects compressor performance and equipment lifespan.

Method used

The system is divided into a fluid chamber and a liquid collection chamber by a shell assembly. The impeller assembly rotates to throw the liquid to the periphery and guide it into the liquid collection chamber. The liquid discharge process is controlled by a sealing assembly. The gas-liquid separation and liquid discharge process are optimized by combining the guide section and the guide impeller.

Benefits of technology

It improves gas-liquid separation efficiency, ensures rapid liquid separation without reducing gas flow rate, optimizes the liquid discharge process, avoids compressor pressure loss, and enhances overall performance and equipment stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223839426U_ABST
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Abstract

The utility model provides a liquid-gas separation device of a gas-liquid mixing compressor, and belongs to the field of compressors. The problem that the gas-liquid separation effect is poor is solved. The shell assembly is provided with an air inlet, a fluid cavity positioned at the upper part and a liquid collecting cavity positioned at the lower part; the impeller assembly is rotationally connected into the shell assembly and used for rotating under the action of gas entering the gas inlet to guide the gas to the gas outlet communicated with the fluid cavity and swinging liquid in the gas to the peripheral side; the flow guide part is arranged between the fluid cavity and the liquid collecting cavity and is used for guiding the thrown-out liquid into the liquid collecting cavity; and the blocking assembly is used for blocking the liquid outlet of the liquid collecting cavity in a non-liquid-discharging state and is used for blocking the flow guide part and opening the liquid outlet in a liquid discharging state. The gas-liquid separator is mainly used for gas-liquid separation of the compressor.
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Description

Technical Field

[0001] This utility model belongs to the field of compressors, and in particular relates to a liquid-gas separation device for a gas-liquid mixing compressor. Background Technology

[0002] In practical applications of gas-liquid mixing compressors, the separation of liquid and gas is a crucial step. However, traditional separation structures suffer from numerous problems during use.

[0003] First, traditional separation structures have poor separation performance, failing to efficiently separate liquids and gases completely. Second, their separation efficiency is low, especially when handling high-velocity gas-liquid mixtures, where the efficiency drops sharply. Furthermore, during liquid discharge, traditional separation structures are ineffective at pressure control, easily leading to liquid accumulation or pressure fluctuations, which in turn affect the overall performance of the compressor. These problems not only reduce the compressor's operating efficiency but may also adversely affect the equipment's lifespan and operational stability.

[0004] Therefore, there is an urgent need for an improved separation structure to enhance gas-liquid separation performance and efficiency, and to optimize pressure control during the liquid discharge process. Summary of the Invention

[0005] In view of this, the present invention aims to provide a gas-liquid mixing compressor liquid-gas separation device to solve the problem of poor gas-liquid separation effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas-liquid mixing compressor liquid-gas separation device, comprising:

[0007] The housing assembly includes an air inlet, a fluid chamber at the top, and a liquid collection chamber at the bottom.

[0008] The impeller assembly is rotatably connected inside the housing assembly. It is used to rotate under the action of gas entering through the inlet to guide the gas to the outlet that communicates with the fluid cavity, and to throw the liquid in the gas to the periphery.

[0009] A flow guide section is provided between the fluid chamber and the liquid collection chamber to guide the ejected liquid into the liquid collection chamber.

[0010] A sealing assembly is used to seal the outlet of the liquid collection chamber when not in a draining state, and to seal the guide section and open the outlet when in a draining state.

[0011] Furthermore, the housing assembly is also provided with a first support portion for dividing the housing assembly into a fluid cavity and a liquid collection cavity, and the impeller assembly is rotatably connected to the first support portion.

[0012] Furthermore, the first support portion is provided with several openings, each opening corresponding to a flow guide portion.

[0013] Furthermore, the impeller assembly includes a rotor, blades, and a shaft. Several blades are arranged around the circumference of the rotor, one end of which is connected to the shaft, and the shaft is rotatably connected to the first support.

[0014] Furthermore, the air intake direction of the air inlet is eccentrically arranged with respect to the axis of rotation.

[0015] Furthermore, a guide impeller is provided on one side of the liquid collection chamber of the rotating shaft to generate gas that blows towards the liquid outlet when the rotating shaft rotates.

[0016] Furthermore, the flow guide is provided in several parts and is evenly distributed around the flow guide impeller.

[0017] Furthermore, the direction of gas flow from the guide impeller is the same as the direction of liquid flow in the guide section.

[0018] Furthermore, the sealing assembly includes a first sealing part, a second support part, and a second sealing part. Several first sealing parts are provided and are arranged one-to-one with the liquid outlet of each of the guide parts. All first sealing parts are connected to the second support part, and the second sealing parts are connected to the second support part, for sealing the liquid outlet.

[0019] Furthermore, the blocking component is connected to the driving component, which is used to drive the blocking component to operate.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This device drives the impeller assembly to rotate through airflow. The rotation of the impeller assembly can generate wind force in the same direction as the airflow to counteract the kinetic energy consumed by the impeller. On the other hand, during the contact between the blades and the airflow, the liquid can be condensed and thrown to the periphery, separating the liquid from the gas. This ensures the gas flow rate while quickly separating the liquid and gas, thus improving efficiency.

[0022] 2. This device divides the shell assembly into a fluid chamber and a liquid collection chamber, so that the liquid is less likely to undergo secondary evaporation and backflow after entering the liquid collection chamber along the guide section;

[0023] 3. This device is equipped with a sealing component. When liquid needs to be drained, the sealing component moves to seal the guide section and open the outlet, allowing the liquid to be discharged smoothly without being affected by the fluid chamber pressure. This will not cause the compressor to depressurize. During the liquid discharge process, the guide impeller continues to rotate, which can cause the gas to flow in a directional direction towards the outlet, accelerating the liquid discharge. Attached Figure Description

[0024] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of a gas-liquid mixing compressor liquid-gas separation device according to the present invention;

[0026] Figure 2 This is a top view of a gas-liquid mixing compressor liquid-gas separation device according to the present invention;

[0027] Figure 3 This is a sectional view along line AA of the figure described in this utility model;

[0028] Figure 4 This is a schematic diagram of the impeller assembly described in this utility model;

[0029] Figure 5 This is a schematic diagram showing the relative positions of the impeller assembly and the sealing assembly described in this utility model.

[0030] 1. Housing assembly; 1-1. Fluid chamber; 1-2. Air outlet; 1-3. First support part; 1-4. Liquid collection chamber; 1-5. Liquid outlet; 1-6. Air inlet; 2. Impeller assembly; 2-1. Rotor; 2-2. Blade; 2-3. Shaft; 3. Guide impeller; 4. Guide part; 5. Blocking assembly; 5-1. First blocking part; 5-2. Second support part; 5-3. Second blocking part; 6. Drive assembly. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0032] It should be noted that the descriptions of "left," "right," "left side," "right side," "upper part," "lower part," "top," and "bottom" in this utility model are defined based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and are not intended to indicate or imply that the described structure must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Referring to the accompanying drawings, this embodiment describes a gas-liquid mixing compressor liquid-gas separation device, comprising:

[0035] The housing assembly 1 includes an air inlet 1-6, an upper fluid cavity 1-1, and a lower liquid collection cavity 1-4. The overall shape of the housing assembly 1 is a rotating body to reduce wind resistance. Specifically, the housing assembly consists of an upper housing and a lower housing, with a first support 1-3 between them. The first support 1-3 and the upper housing form the fluid cavity 1-1, and the first support 1-3 and the lower housing form the liquid collection cavity 1-4. The upper housing, the first support 1-3, and the lower housing are connected by bolts, and a sealing structure is required at the joints to ensure airtightness. An air outlet 1-2 is located at the center of the upper housing, with a flange for connecting pipelines. The air inlet 1-6 is specifically located on the periphery of the upper housing at a certain angle to the center of rotation, so that the incoming gas can drive the impeller assembly 2 located at the center of the fluid cavity 1-1 to rotate.

[0036] Impeller assembly 2, rotatably connected within housing assembly 1, rotates under the influence of gas entering through inlet 1-6, guiding the gas towards outlet 1-2, which communicates with fluid cavity 1-1, and also flings liquid within the gas to the periphery. Impeller assembly 2 includes rotor 2-1, blades 2-2, and shaft 2-3. Several blades 2-2 are arranged around the periphery of rotor 2-1, one end of which is connected to shaft 2-3. Shaft 2-3 is rotatably connected to first support 1-3. Rotor 2-1 is specifically designed as a truncated cone with a hollowed-out interior, reducing its mass and power consumption. This shape allows gas entering through inlet 1-6 to move upwards along the cone surface, guiding it towards outlet 1-2. Other shapes can be used as needed to facilitate gas flow. Blade 2-2 is specifically mounted on the conical surface of the truncated cone. Gas entering tangentially from inlet 1-6 pushes blade 2-2, causing rotor 2-1 to rotate. This directional rotation, coupled with the continuous pushing of new blades 2-2, ensures the continuous rotation of rotor 2-1. Simultaneously, the rotation of blade 2-2 creates an upward-sloping gas flow, which ultimately flows along the inner wall of fluid cavity 1-1 to outlet 1-2, compensating for some wind loss. As the gas continuously contacts blade 2-2, the liquid within it is flung outwards by the centrifugal force generated by the rotation of blade 2-2. Upon contact with the inner wall of fluid cavity 1-1, it flows downwards, eventually entering collection chamber 1-4 through guide section 4.

[0037] The guide section 4, located between the fluid chamber 1-1 and the collection chamber 1-4, guides the ejected liquid into the collection chamber 1-4. The guide section 4 is funnel-shaped, with a large upper opening communicating with the fluid chamber 1-1 and a small lower opening communicating with the collection chamber 1-4. This design reduces the likelihood of gas in the collection chamber 1-4 being evaporated and carried away by the guiding flow. It also facilitates sealing during the drainage stage.

[0038] The sealing component 5 is used to seal the outlet 1-5 of the collection chamber 1-4 when not in the draining state, and to seal the guide section 4 and open the outlet 1-5 when draining. The sealing component 5 is mainly designed to control whether or not to drain.

[0039] In this embodiment, the housing assembly 1 is further provided with a first support portion 1-3, which is used to divide the housing assembly 1 into a fluid chamber 1-1 and a liquid collection chamber 1-4. The impeller assembly 2 is rotatably connected to the first support portion 1-3. Specifically, a bearing seat is provided in the middle of the first support portion 1-3, and the impeller assembly 2 is rotatably connected to the first support portion 1-3 through the cooperation of the bearing and the bearing seat.

[0040] In this embodiment, the first support portion 1-3 is provided with a plurality of openings, and each opening is connected to a guide portion 4.

[0041] In this embodiment, the air intake direction of the air inlets 1-6 is eccentrically arranged with respect to the axis of the rotating shaft 2-3. This arrangement is mainly to fix the air intake direction of the air inlets 1-6, and at the same time, to fix the rotation direction of the rotating shaft 2-3 after the gas enters. On the one hand, the downward gas flow is formed when the guide impeller 3 rotates, which can accelerate the liquid outflow during the liquid discharge stage. On the other hand, during the non-liquid discharge stage, the gas flow pressure is eventually applied upward through the guide section 4, which further compensates for the power loss of the gas flow.

[0042] In this embodiment, a guide impeller 3 is provided on one side of the liquid collection chamber 1-4 on the rotating shaft 2-3, which is used to generate gas blowing towards the liquid outlet 1-5 when the rotating shaft 2-3 rotates. In this application, the liquid flows downward, the rotating shaft 2-3 is kept perpendicular to the horizontal plane, and the blade orientation of the guide impeller 3 is reasonably set according to the actual direction of rotation to generate downward gas flow.

[0043] In this embodiment, the guide section 4 is provided in a plurality of units and is evenly distributed circumferentially relative to the guide impeller 3. The gas flow direction of the guide impeller 3 is the same as the liquid flow direction of the guide section 4. This arrangement ensures that the airflow generated by the guide impeller 3 can exert a certain entraining effect on the liquid in the guide section 4, thereby allowing the liquid to flow out more quickly during the process of discharging the liquid outside the device.

[0044] In this embodiment, the sealing component 5 includes a first sealing part 5-1, a second support part 5-2, and a second sealing part 5-3. Several first sealing parts 5-1 are provided and are arranged one-to-one with each liquid outlet of the guide part 4. All first sealing parts 5-1 are connected to the second support part 5-2, and the second sealing parts 5-3 are connected to the second support part 5-2, for sealing the liquid outlet 1-5.

[0045] In this embodiment, the sealing component 5 is connected to the driving component 6, and the driving component 6 is used to drive the sealing component 5 to move. The driving component 6 can be a linear drive component, such as an electric cylinder or a hydraulic cylinder, depending on actual needs. This application selects a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed in a suitable position, and the hydraulic rod can slide through the bottom wall of the lower housing and connect to the lower end face of the second support part 5-2. The hydraulic rod drives the second support part 5-2 to move upward or downward. The second support part 5-2 is made of corrosion-resistant and lightweight material. In the non-drainage state, the second sealing part 5-3 provided on the lower end face of the second support part 5-2 can close the outlet 1-5. When the second support part 5-2 moves upward, the second sealing part 5-3 disengages from the outlet 1-5, and the first sealing part 5-1 closes the outlet end of the corresponding guide part 4. At this time, the gas-liquid separation process is not affected, and the liquid in the collection chamber 1-4 is discharged from the outlet 1-5 under the push of the gas generated by the rotation of the guide impeller 3.

[0046] In use, the second sealing part 5-3 provided on the lower end face of the second support part 5-2 can seal the liquid outlet 1-5. After the gas-liquid mixture enters from the air inlet 1-6, due to the eccentric arrangement of the fluid and the impeller assembly 2, the impeller assembly 2 will rotate in a specific direction. The gas flows upward along the conical surface of the rotor 2-1 and is discharged from the air outlet 1-2. Under the centrifugal force generated by the rotation of the rotor 2-1, the liquid is thrown towards the peripheral wall of the fluid cavity 1-1 and separates from the gas. After flowing along the guide part 4, the liquid will enter the liquid collection cavity 1-4 for collection. During this process, the rotation of the blade 2-2 will create an upward gas flow trend. At the same time, the gas flow generated by the rotation of the guide impeller 3 will be reversed in the liquid collection cavity 1-4 and discharged upward through the guide part 4. Both of these gas flow trends will replenish the kinetic energy consumed by the rotor 2-1, so that the overall gas flow kinetic energy will not decrease too much, thus playing a compensatory role.

[0047] When the liquid level in the collection chamber 1-4 reaches a certain point, the drive assembly 6 drives the second support 5-2 to move upward, which in turn causes the second sealing part 5-3 to separate from the outlet 1-5. Simultaneously, the first sealing part 5-1 seals the corresponding guide part 4, thus separating the fluid chamber 1-1 from the collection chamber 1-4 and preventing excessive fluid kinetic energy loss after the outlet 1-5 is opened. The liquid level in the collection chamber 1-4 can be detected using a liquid level sensor; the corresponding controller and control program can be set appropriately.

[0048] The sensors, controllers, and control programs mentioned above are all existing technologies and will not be elaborated upon.

[0049] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A gas-liquid mixing compressor liquid-gas separation device, characterized in that, include: The housing assembly (1) is provided with an air inlet (1-6), a fluid chamber (1-1) located at the upper part, and a liquid collection chamber (1-4) located at the lower part; Impeller assembly (2) is rotatably connected inside housing assembly (1) and is used to rotate under the action of gas entering through inlet (1-6) to guide the gas to outlet (1-2) which is connected to fluid chamber (1-1) and to throw liquid in gas to the periphery. A flow guide (4) is provided between the fluid chamber (1-1) and the liquid collection chamber (1-4) to guide the ejected liquid into the liquid collection chamber (1-4); The sealing assembly (5) is used to seal the outlet (1-5) of the liquid collection chamber (1-4) when it is not in the draining state, and to seal the guide section (4) and open the outlet (1-5) when it is in the draining state.

2. The gas-liquid mixing compressor liquid-gas separation device according to claim 1, characterized in that: The housing assembly (1) is further provided with a first support part (1-3) for dividing the housing assembly (1) into a fluid chamber (1-1) and a liquid collection chamber (1-4), and the impeller assembly (2) is rotatably connected to the first support part (1-3).

3. The gas-liquid mixing compressor liquid-gas separation device according to claim 2, characterized in that: The first support part (1-3) is provided with a plurality of openings, each opening being connected to a guide part (4).

4. The gas-liquid mixing compressor liquid-gas separation device according to claim 2, characterized in that: The impeller assembly (2) includes a rotor (2-1), blades (2-2) and a rotating shaft (2-3). The rotor (2-1) has several blades (2-2) arranged around its periphery, and one end is connected to the rotating shaft (2-3). The rotating shaft (2-3) is rotatably connected to the first support part (1-3).

5. The gas-liquid mixing compressor liquid-gas separation device according to claim 4, characterized in that: The air intake direction of the air inlet (1-6) is eccentrically arranged with respect to the axis of the rotating shaft (2-3).

6. The gas-liquid mixing compressor liquid-gas separation device according to claim 4, characterized in that: The rotating shaft (2-3) is provided with a guide impeller (3) on one side of the liquid collection chamber (1-4) to generate gas that blows toward the liquid outlet (1-5) when the rotating shaft (2-3) rotates.

7. The gas-liquid mixing compressor liquid-gas separation device according to claim 6, characterized in that: The guide section (4) is provided with several parts that are evenly distributed around the circumference of the guide impeller (3).

8. The gas-liquid mixing compressor liquid-gas separation device according to claim 7, characterized in that: The direction of gas flow from the guide impeller (3) is the same as the direction of liquid flow from the guide section (4).

9. A gas-liquid mixing compressor liquid-gas separation device according to any one of claims 1-8, characterized in that: The sealing assembly (5) includes a first sealing part (5-1), a second support part (5-2), and a second sealing part (5-3). The first sealing part (5-1) is provided in a plurality of parts and is arranged in a one-to-one correspondence with the liquid outlet of each of the guide parts (4). All the first sealing parts (5-1) are connected to the second support part (5-2), and the second sealing part (5-3) is connected to the second support part (5-2) for sealing the liquid outlet (1-5).

10. The gas-liquid mixing compressor liquid-gas separation device according to claim 9, characterized in that: The blocking component (5) is connected to the driving component (6), and the driving component (6) is used to drive the blocking component (5) to operate.