A cyclone gas-liquid separator structure

Abstract

This utility model relates to a cyclone gas-liquid separator structure, which includes an inlet, an outlet, and a vent at the top of the tank; a drain outlet at the bottom of the tank; parallel baffle plates and reversing plates arranged within the tank's inner cavity, with the inner cavity formed at one end of the baffle plates and reversing plates corresponding to the inlet position; a cyclone reversing pipe located above the center of the tank, with its upper end passing through and fixed to the reversing plate, and the reversing plate extending obliquely to the inner wall of the tank below the outlet; a lower baffle plate extending to the outer wall of the cyclone reversing pipe; and spiral baffles on the outer wall of the cyclone reversing pipe. This cyclone gas-liquid separator structure employs a spiral flow guiding structure to form a spiral flow field, reducing turbulence and improving separation efficiency.

Description

Technical Field

[0001] This utility model relates to a cyclone gas-liquid separator structure and belongs to the technical field of gas-liquid separators. Background Technology

[0002] Among the many stages of industrial production, the separation process is crucial, directly affecting product quality, production efficiency, and the effective utilization of resources. As a highly efficient separation device, the hydrocyclone separator has evolved over the past century and a half, from simple applications to widespread use, and from single-function to diversified development, occupying an indispensable and vital position in the industrial field.

[0003] From a filtration efficiency perspective, when fluid enters, strong eddies and turbulence form in the region near the inlet, resulting in a highly uneven flow field distribution. These unstable flow fields interfere with the formation of a normal rotating flow field, further exacerbating the tendency for fluid short-circuiting. Moreover, the velocity distribution at the inlet is difficult to achieve uniformity; the fluid velocity is higher near the inner side of the inlet and lower on the outer side. This velocity difference makes it easier for the fluid to deviate from its path after entering the cylinder, forming short-circuit channels. The presence of short-circuit flow disrupts the ideal axisymmetric rotating flow field within the cyclone separator. Ideally, the gas-liquid mixture should form stable inner and outer swirling flows under the combined action of centrifugal force, gravity, and fluid viscosity. However, short-circuit flow disrupts the normal distribution of inner and outer swirling flows, leading to localized velocity anomalies in the inner swirling region and a weakening of the rotational intensity of the outer swirling flow. This turbulence not only affects the efficiency of liquid level migration towards the vessel wall but may also cause liquid already separated near the vessel wall to be re-entrained into the inner swirling flow and discharged with the gas, thus significantly reducing the separation effect. In addition, short-circuit flow increases the energy loss of fluid within the separator, leading to higher energy consumption during equipment operation. It may also cause problems such as equipment vibration and noise, affecting the stability and service life of the equipment.

[0004] From a manufacturing cost perspective, tangential inlets often require larger cylinder dimensions due to factors such as the location of the opening and strength requirements, resulting in increased costs. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a cyclone gas-liquid separator structure. This cyclone gas-liquid separator structure adopts a spiral flow guiding structure to form a spiral flow field, reduce turbulence, and improve separation efficiency.

[0006] To solve the above problems, the specific technical solution of this utility model is as follows: A cyclone gas-liquid separator structure, wherein an inlet, an outlet, and a vent are respectively provided on the upper part of the tank; a drain outlet is provided at the bottom of the tank; a baffle plate and a reversing plate are arranged in parallel in the inner cavity of the tank, and the inner cavity formed by one end of the baffle plate and the reversing plate corresponds to the inlet position; a cyclone reversing pipe is provided above the center of the tank, the upper end of the cyclone reversing pipe passes through and is fixed to the reversing plate, and the reversing plate extends obliquely to the inner wall of the tank below the outlet; the lower baffle plate extends to the outer wall of the cyclone reversing pipe; and a spiral baffle is provided on the outer wall of the cyclone reversing pipe.

[0007] The bottom port of the cyclone reversing tube is provided with a two-stage separation component with a frustum-shaped inner cavity. The large-diameter end of the two-stage separation component is fixedly connected to the port of the cyclone reversing tube, and the small-diameter end is located in the inner cavity of the cyclone reversing tube.

[0008] The inner wall of the secondary separator is provided with a guide groove in the direction of the frustum generatrix.

[0009] A liquid guide pipe is provided on the inner wall of the tank, and the upper end of the liquid guide pipe is flush with the upper surface of the reversing plate.

[0010] Two level gauge ports are provided on the lower outer wall of the tank, and the level gauges are inserted into the tank through the level gauge ports.

[0011] The tank is equipped with a horizontally arched distribution plate, which is located above the liquid level gauge port.

[0012] The cyclone gas-liquid separator structure of this application adopts the above-described structure and has the following advantages: 1. In this application, a turbulence vane is installed on the outside of the cyclone reversing tube. When the gas-liquid mixture is disturbed by the turbulence vane and the flow state changes drastically, the liquid has difficulty quickly following the change of motion trajectory due to its large inertia. Thus, under the combined action of centrifugal force, inertial force and fluid friction, the liquid tends to separate from the gas, thereby improving the separation efficiency. 2. A secondary separator is installed at the bottom of the cyclone reversing tube to increase the inlet flow velocity, enhance centrifugal force, and improve separation accuracy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a cyclone gas-liquid separator.

[0014] Figure 2 This is the front view of the vortex converter.

[0015] Figure 3 This is a longitudinal sectional view of the secondary separation component. Detailed Implementation

[0016] like Figure 1 and Figure 2As shown, a cyclone gas-liquid separator structure is provided with an inlet 2, an outlet 3, and a vent 4 on the upper part of the tank body 1; a drain outlet 13 is provided at the bottom of the tank body 1; a baffle plate 5 and a reversing plate 6 are arranged in parallel in the inner cavity of the tank body 1, and the inner cavity formed by one end of the baffle plate 5 and the reversing plate 6 corresponds to the position of the inlet 2; a cyclone reversing pipe 7 is provided above the center of the tank body 1, the upper end of the cyclone reversing pipe 7 passes through and is fixed on the reversing plate 6, and the reversing plate 6 extends obliquely to the inner wall of the tank body 1 below the outlet 3; the lower baffle plate 5 extends to the outer wall of the cyclone reversing pipe 7; and a spiral baffle 8 is provided on the outer wall of the cyclone reversing pipe 7.

[0017] The bottom port of the cyclone reversing tube 7 is provided with a secondary separator 9 with a frustum-shaped inner cavity. The large-diameter end of the secondary separator 9 is fixedly connected to the port of the cyclone reversing tube 7, and the small-diameter end is located in the inner cavity of the cyclone reversing tube 7. Figure 3 As shown, the inner wall of the secondary separator 9 is provided with a guide groove in the direction of the frustum generatrix.

[0018] A liquid guide pipe 10 is provided on the inner wall of the tank body 1. The upper end of the liquid guide pipe 10 is flush with the upper surface of the upper reversing plate 6. The liquid condensed in the space of the upper reversing plate 6 will be discharged into the liquid in the tank body 1 along the liquid guide pipe 10.

[0019] Two level gauge ports 11 are provided on the lower outer wall of the tank body 1. The level gauges are inserted into the tank body 1 through the level gauge ports 11. When the liquid reaches the position of the upper level gauge, the drain port 13 is opened to lower the liquid level to the position of the lower level gauge, and then the drain port 13 is closed.

[0020] A horizontally arched separator 12 is provided inside the tank body 1, above the liquid level gauge port 11. The separator 12 effectively separates gas and liquid.

[0021] The working process of the cyclone gas-liquid separator structure in this application is as follows: 1. Fluid entry: The fluid to be separated enters the separation chamber composed of the reversing plate 6 and the baffle plate 5 through the inlet 2, and forms a high-speed rotating flow field under the action of the spiral turbulence plate 8.

[0022] 2. Centrifugal Separation: The baffle plate 8 is designed as a plate-like structure with a specific tilt angle. Its core function is to disrupt the original flow state of the gas-liquid mixture and create a complex flow field. When the gas-liquid mixture flows past the baffle plate at a certain speed, the baffle plate forces the fluid to change its flow direction, generating strong turbulence and eddies. During this process, due to the significant differences in the physical properties of gas and liquid (liquid density is much greater than gas, and its inertia is also greater), when the gas-liquid mixture undergoes a drastic change in flow state due to the disturbance of the baffle plate, the liquid, due to its greater inertia, finds it difficult to quickly follow the gas to change its trajectory. Thus, under the combined action of centrifugal force, inertial force, and fluid friction, it tends to separate from the gas. Liquid particles are thrown towards the surface of the baffle plate or the surrounding wall, and under the action of gravity and surface tension, they gradually converge into a liquid film on the wall, flowing downwards along the wall and being collected; while the gas, with its smaller inertia and higher fluidity, more easily bypasses the baffle plate or passes through the eddy region generated by the baffle plate and continues to flow forward, thereby achieving initial gas-liquid separation. In the gas-liquid separation process, the blades primarily achieve separation by guiding the gas-liquid mixture to form a specific rotating flow field. Its working principle is similar to cyclone separation, but the blade layout and shape design are more refined. The blades are installed at a specific angle within the flow channel. When the gas-liquid mixture enters the blade area, it generates high-speed rotational motion under the guidance of the blades. During rotation, the gas and liquid phases experience different magnitudes of centrifugal force due to their density difference. The liquid, with its higher density, experiences a greater centrifugal force, and under this force, it is thrown against the flow channel wall, forming a liquid film. Subsequently, driven by gravity, it slides down the wall to the collection device. The gas, with its lower density, experiences a weaker centrifugal force and accumulates in the central region of the secondary separator 9 in the cyclone reversing tube 7, exiting from the outlet as a relatively stable airflow, thus achieving secondary separation.

[0023] 3. Liquid discharge: The liquid is collected at the bottom of the tank 1 through the separator plate 7, the liquid level is detected by the level gauge, and the liquid is discharged through the drain port 13.

Claims

1. A cyclone gas-liquid separator structure, characterized in that: An inlet (2), an outlet (3), and a vent (4) are respectively provided on the top of the tank (1); a drain outlet (13) is provided at the bottom of the tank (1); a baffle plate (5) and a reversing plate (6) are arranged in parallel in the inner cavity of the tank (1), and the inner cavity formed by one end of the baffle plate (5) and the reversing plate (6) corresponds to the position of the inlet (2); a vortex reversing pipe (7) is provided above the center of the tank (1), the upper end of the vortex reversing pipe (7) passes through and is fixed on the reversing plate (6), and the reversing plate (6) extends obliquely to the inner wall of the tank (1) below the outlet (3); the lower baffle plate (5) extends to the outer wall of the vortex reversing pipe (7); a spiral baffle plate (8) is provided on the outer wall of the vortex reversing pipe (7).

2. The cyclone gas-liquid separator structure according to claim 1, characterized in that: The bottom port of the vortex reversing tube (7) is provided with a secondary separator (9) with a frustum-shaped inner cavity. The large-diameter end of the secondary separator (9) is fixedly connected to the port of the vortex reversing tube (7), and the small-diameter end is located in the inner cavity of the vortex reversing tube (7).

3. The cyclone gas-liquid separator structure according to claim 2, characterized in that: The inner wall of the secondary separator (9) is provided with a guide groove in the direction of the frustum generatrix.

4. The cyclone gas-liquid separator structure according to claim 1, characterized in that: A liquid guide pipe (10) is provided on the inner wall of the tank (1), and the upper end of the liquid guide pipe (10) is flush with the upper surface of the reversing plate (6) above.

5. The cyclone gas-liquid separator structure according to claim 1, characterized in that: Two level gauge ports (11) are provided on the lower outer wall of the tank (1), and the level gauges are inserted into the tank (1) through the level gauge ports (11).

6. The cyclone gas-liquid separator structure according to claim 5, characterized in that: A horizontally arched liquid distribution plate (12) is provided inside the tank (1), which is above the liquid level gauge port (11).

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