A cyclone type gas-liquid separation liquid return device

Abstract

The utility model provides a kind of cyclone gas-liquid separation liquid return device, including tank, gas inlet, gas outlet and liquid return port are equipped on tank, multiple longitudinal flow channels are opened in the inner wall of tank, extend to the bottom in tank, and flow channel is arranged with interval;Gas outlet pipeline is installed in tank, one end of gas outlet pipeline is connected with gas outlet, and the other end of gas outlet pipeline is connected with the space in tank, and gas outlet pipeline is curved, and the gas separated by gas-liquid separation is discharged to gas outlet by gas outlet pipeline.Cyclone will blow the liquid separated and pasted to the inner wall of tank to bottom, meanwhile, the inner wall of tank is designed with flow channel, and liquid is conveniently flowed into tank bottom along flow channel;Gas outlet pipeline is designed as curved shape, can effectively extend the distance of gas flowing out of tank, so that liquid in gas has more time to precipitate to tank bottom, and enhances separation effect.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separation technology, and in particular to a cyclone gas-liquid separation and liquid return device. Background Technology

[0002] In many industrial production processes, the separation of gas-liquid mixtures is a common and important step. Existing gas-liquid separation devices have certain shortcomings in liquid collection and reflux. For example, their inner walls lack flow channels, causing the liquid separated by the gas-liquid centrifugal fan to drift erratically within the tank and fail to accurately reach the bottom. Furthermore, the gas outlet is directly connected to the tank, resulting in a short residence time for the gas within the tank. This insufficient time for sedimentation and separation means that the liquid in the gas still contains some water vapor, preventing the liquid from being fully separated and refluxed back into the reaction device. This leads to resource waste and reduced production efficiency, as illustrated in patent document CN210905518U. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to provide a cyclone gas-liquid separation and liquid return device.

[0004] This utility model is implemented using the following method: a cyclone gas-liquid separation and return device includes a tank, which has an air inlet, an air outlet, and a return liquid outlet. Multiple longitudinal flow channels are formed in the inner wall of the tank, extending to the bottom of the tank, and the flow channels are spaced apart. An air outlet pipe is installed inside the tank, one end of which is connected to the air outlet, and the other end of which is connected to the space inside the tank. The air outlet pipe is curved, and the gas after gas-liquid separation is discharged from the air outlet pipe to the air outlet.

[0005] Preferably, the air outlet pipeline includes an inner tank and an air outlet pipe body. The inner tank is fixed inside the tank body, and the axis of the inner tank coincides with the axis of the tank body. The lower end of the inner tank is open, and the inlet end of the air outlet pipe body is located in the inner tank. The air outlet pipe body extends from the lower end of the inner tank and connects to the air outlet. The portion of the air outlet pipe body outside the inner tank is curved.

[0006] Preferably, the lower opening of the inner tank is provided with a liquid filter plate, and the vent pipe body passes through the liquid filter plate.

[0007] Preferably, the inlet end of the vent pipe body is located at the top of the inner tank, and the vent pipe body extends out of the lower end of the inner tank and then bends upward to form a U-shape to connect to the vent.

[0008] Preferably, it also includes a gas-liquid centrifugal fan, which includes multiple fan blades in a ring array. The upper end of the inner tank is fixedly connected to the upper end of the tank body, and a bearing is connected between the gas-liquid centrifugal fan and the outer peripheral surface of the inner tank.

[0009] Preferably, the fan blade has a cavity, the surface of the fan blade has a through hole communicating with the cavity, and a separation port is provided at the end opposite to the rotation direction of the fan blade.

[0010] Preferably, the air inlet is located at the top of the tank body, the gas-liquid centrifugal fan is installed at the top of the tank body, and the gas is blown from the air inlet to the gas-liquid centrifugal fan; the air outlet is located on the side wall of the tank body and below the gas-liquid centrifugal fan, and the air inlet is connected to the air inlet pipe.

[0011] Preferably, the air inlet is located on the side wall at the top of the tank body, and the air intake direction of the air inlet is offset from the axis of the tank body to form a swirling flow within the tank body.

[0012] Preferably, a plurality of the flow channels are arranged in a ring array on the inner surface of the tank.

[0013] Preferably, the bottom of the tank is funnel-shaped or arc-shaped; the return port is located at the center of the bottom of the tank and is connected to a return pipe.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a cyclone-type gas-liquid separation and liquid return device. Compared with the prior art, this utility model has at least the following technical effects: 1. When the gas-liquid mixture is introduced into the tank, a cyclone is generated. Centrifugal force throws the liquid to the inner wall of the tank, and the cyclone blows the liquid adhering to the inner wall of the tank to the bottom. At the same time, the inner wall of the tank is designed with a flow channel to facilitate the liquid to flow into the bottom of the tank along the flow channel. The gas outlet pipe is designed in a curved shape, which can effectively extend the distance of gas flow out of the tank, allowing the liquid in the gas to settle to the bottom of the tank for more time, thus enhancing the separation effect. 2. The inner tank and the gas outlet pipe together constitute the gas outlet pipe, so that the separated gas must enter from the lower opening of the inner tank, rise a certain distance, and then enter the gas outlet pipe and be discharged from the outlet. The gas outlet pipe is designed in a curved shape, which effectively extends the gas flow distance, thus allowing the liquid in the gas to settle to the bottom of the tank for more time. 3. A liquid filter plate is installed at the lower end of the inner tank to isolate the gas and liquid. A filter plate is also designed at the inner tank opening to further filter the liquid in the gas, improving gas purity. 4. The upper end of the inner tank is fixedly connected to the upper end of the main tank. A bearing connects the gas-liquid centrifugal fan to the outer circumference of the inner tank, facilitating fan installation and preventing interference from the outlet pipe on the fan's rotation. 5. The air inlet is designed to be tangential to the inner wall, allowing the incoming gas to flow downwards in a swirling pattern, more easily driving the centrifugal fan. 6. The bottom of the tank is designed with an arc shape to effectively collect water. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of a cyclone gas-liquid separation and liquid return device according to the present invention.

[0016] Figure 2 This is a longitudinal sectional view of a cyclone gas-liquid separation and liquid return device according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the gas-liquid centrifugal fan structure of a cyclone gas-liquid separation and liquid return device according to this utility model.

[0018] Figure 4 This is a cross-sectional view of the flow channel structure at the exhaust pipe of a cyclone gas-liquid separation and liquid return device according to this utility model.

[0019] The following are the reference numerals: 1. Tank body; 2. Inlet pipe; 3. Outlet pipe body; 4. Liquid return pipe; 5. Gas-liquid centrifugal fan; 6. Bearing; 7. Inner tank; 8. Liquid filter plate; 9. Flow channel. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Please see Figures 1 to 4 A cyclone-type gas-liquid separation and return device includes a tank 1, which has an air inlet, an air outlet, and a return liquid outlet. Multiple longitudinal flow channels 9 are formed in the inner wall of the tank 1, extending to the bottom of the tank 1, and the flow channels 9 are spaced apart. An air outlet pipe is installed inside the tank 1, one end of which is connected to the air outlet, and the other end of which is connected to the space inside the tank 1. The air outlet pipe is curved, and the gas after gas-liquid separation is discharged from the air outlet pipe to the air outlet. When the gas-liquid mixture is introduced into the tank 1, it generates a cyclone. Centrifugal force throws the liquid against the inner wall of the tank 1, and the cyclone also blows the liquid adhering to the inner wall of the tank 1 towards the bottom. The flow channels 9 on the inner wall of the tank 1 facilitate the liquid flowing into the bottom of the tank 1 along the flow channels 9. The curved design of the air outlet pipe effectively extends the distance the gas needs to flow out of the tank 1, allowing more time for the liquid in the gas to settle to the bottom of the tank 1, thus enhancing the separation effect.

[0022] Please see Figures 1 to 3Preferably, the gas outlet pipeline includes an inner tank 7 and a gas outlet pipe body 3. The inner tank 7 is fixed inside the tank body 1, and the axis of the inner tank 7 coincides with the axis of the tank body 1. The lower end of the inner tank 7 is open, and the inlet end of the gas outlet pipe body 3 is located in the inner tank 7. The gas outlet pipe body 3 extends from the lower end of the inner tank 7 and connects to the gas outlet. The portion of the gas outlet pipe body 3 outside the inner tank 7 is curved. The inner tank 7 and the gas outlet pipe body 3 together constitute the gas outlet pipeline, ensuring that the separated gas must enter from the lower opening of the inner tank 7, rise a certain distance, and then enter the gas outlet pipeline to be discharged from the gas outlet. The gas outlet pipe is further designed as a curved pipe, which effectively extends the gas flow distance, allowing the liquid in the gas more time to settle to the bottom of the tank body 1.

[0023] Please see Figures 1 to 3 Preferably, the lower opening of the inner tank 7 is provided with a liquid filter plate 8, and the gas outlet pipe body 3 passes through the liquid filter plate 8. The liquid filter plate at the lower end of the inner tank 7 serves to isolate the gas and liquid. The filter plate designed at the opening of the inner tank 7 can further filter the liquid in the gas and improve the purity of the gas. Preferably, the liquid filter plate can be made of stainless steel gas-liquid filter mesh.

[0024] Please see Figures 1 to 3 Preferably, the inlet end of the outlet pipe body 3 is located at the top of the inner tank 7, and the outlet pipe body 3 extends out of the lower end of the inner tank 7 and bends upward to form a U-shape to connect to the outlet. This allows the separated gas to pass through the liquid filter plate 8, the inner tank 7, and the outlet pipe body 3, greatly extending the gas flow path and giving the liquid in the gas more time to settle to the bottom of the tank 1, thus enhancing the separation effect.

[0025] Please see Figures 1 to 3 Preferably, the device further includes a gas-liquid centrifugal fan 5, which comprises multiple fan blades arranged in a ring array. The upper end of the inner tank 7 is fixedly connected to the upper end of the tank body 1. A bearing 6 connects the gas-liquid centrifugal fan 5 to the outer peripheral surface of the inner tank 7. The fixed connection between the upper end of the inner tank 7 and the upper end of the tank body 1, and the bearing 6 connecting the gas-liquid centrifugal fan 5 to the outer peripheral surface of the inner tank 7, facilitates the installation of the gas-liquid centrifugal fan 5 and prevents the gas outlet pipe from interfering with the rotation of the gas-liquid centrifugal fan 5.

[0026] Please see Figures 1 to 3Preferably, the fan blade has a cavity, and the surface of the fan blade has a through hole communicating with the cavity. A separation port is provided at the end opposite to the rotation direction of the fan blade. The through hole facilitates the blowing of gas into the cavity to drive the fan blade to rotate. The rotation of the fan blade will throw the liquid in the gas inside to the inner wall of the cavity. Then, under the action of centrifugal force, the liquid is thrown out from the separation port to the inner wall of the tank. The gas-liquid mixture enters the tank 1 through the air inlet pipe 2 and the air inlet. Since the gas is blown in tangentially through the air inlet, the gas enters the tank 1 and rotates downward. The gas that just entered blows directly into the fan blade cavity of the gas-liquid centrifugal fan 5, causing the fan blade to start rotating. Under the action of centrifugal force, some of the liquid attached to the fan blade is thrown to the inner wall of the tank 1. Furthermore, the wind force generated by the rotation of the fan blade will strengthen the downward wind force, thereby causing the liquid on the inner wall of the tank to flow more quickly along the flow channel to the bottom of the tank.

[0027] Please see Figures 1 to 3 Preferably, the air inlet is located at the top of the tank body 1, and the gas-liquid centrifugal fan 5 is installed at the top of the tank body 1, with gas being blown from the air inlet to the gas-liquid centrifugal fan 5; the air outlet is located on the side wall of the tank body 1, below the gas-liquid centrifugal fan 5, and the air inlet is connected to the air inlet pipe 2. The air outlet is located below the gas-liquid centrifugal fan 5 to avoid interference with the rotation of the gas-liquid centrifugal fan 5 when the air outlet pipe body 3 is connected to the inner tank 7.

[0028] Please see Figures 1 to 3 Preferably, the air inlet is located on the side wall of the top of the tank 1, and the air intake direction of the air inlet is offset from the axis of the tank 1 to form a swirling flow inside the tank 1. The air inlet is designed to allow air to enter in a direction tangential to the inner wall, which enables the incoming gas to flow downward in a swirling manner, making it easier to drive the gas-liquid centrifugal fan 5 to rotate.

[0029] Please see Figure 2 , Figure 4 Preferably, a plurality of the flow channels 9 are arranged in a ring array on the inner surface of the tank body 1. This facilitates the flow of liquid from the inner wall of the tank body 1 to the bottom of the tank body 1.

[0030] Please see Figures 1 to 2 Preferably, the bottom of the tank body 1 is funnel-shaped or arc-shaped; the return port is located at the center of the bottom of the tank body 1, and the return port is connected to the return pipe. The bottom of the tank body 1 is designed as an arc shape, which can effectively collect water.

[0031] The working principle of this utility model is as follows: The gas-liquid mixture enters the tank 1 through the air inlet pipe 2 and the air inlet. Since the gas is blown in tangentially through the air inlet, it rotates downwards after entering the tank 1. The newly entered gas blows directly into the blade cavity of the gas-liquid centrifugal fan 5, causing the fan blade to start rotating. Under the action of centrifugal force, the liquid is thrown onto the inner wall of the tank 1.

[0032] Then, the gas-liquid centrifugal fan blows the liquid adhering to the inner wall of tank 1 toward the bottom of tank 1, and the liquid slides down the flow channel 9 on the inner wall of tank 1.

[0033] After the separated gas rotates and sinks, it enters the inner tank 7, where it is further filtered by the liquid filter plate 8 at the opening of the inner tank 7 to remove liquid from the gas. The filtered gas passes through the inner tank 7 and the gas outlet pipe body 3, and then exits the tank 1 through the gas outlet. The curved design of the gas outlet pipe extends the gas movement path, allowing the liquid in the gas to further settle to the bottom of the tank 1. The arc-shaped design at the bottom of the tank 1 allows for effective water collection, and the liquid is returned to the reaction device or heating device through the return port and the liquid return pipe 4.

[0034] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] Finally, the above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0037] It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of this utility model should also be considered within the scope of protection of this utility model.

Claims

1. A cyclone-type gas-liquid separation and liquid return device, comprising a tank, wherein the tank is provided with an air inlet, an air outlet, and a liquid return outlet, characterized in that: The inner wall of the tank has multiple longitudinal flow channels that extend to the bottom of the tank. The flow channels are spaced apart. An exhaust pipe is installed in the tank. One end of the exhaust pipe is connected to the exhaust port, and the other end of the exhaust pipe is connected to the space inside the tank. The exhaust pipe is curved, and the gas after gas-liquid separation is discharged from the exhaust pipe to the exhaust port.

2. The cyclone gas-liquid separation and liquid return device according to claim 1, characterized in that: The air outlet pipeline includes an inner tank and an air outlet pipe body. The inner tank is fixed inside the tank body, and the axis of the inner tank coincides with the axis of the tank body. The lower end of the inner tank is open, and the inlet end of the air outlet pipe body is located in the inner tank. The air outlet pipe body extends from the lower end of the inner tank and connects to the air outlet. The portion of the air outlet pipe body outside the inner tank is curved.

3. The cyclone gas-liquid separation and liquid return device according to claim 2, characterized in that: The lower opening of the inner tank is equipped with a liquid filter plate, and the vent pipe body passes through the liquid filter plate.

4. The cyclone gas-liquid separation and liquid return device according to claim 3, characterized in that: The inlet end of the vent pipe body is located at the top of the inner tank. After the vent pipe body passes through the lower end of the inner tank, it bends upward to form a U-shape and connects to the vent.

5. A cyclone gas-liquid separation and liquid return device according to claim 2, characterized in that: It also includes a gas-liquid centrifugal fan, which includes multiple fan blades in a ring array. The upper end of the inner tank is fixedly connected to the upper end of the tank body, and a bearing is connected between the gas-liquid centrifugal fan and the outer peripheral surface of the inner tank.

6. The cyclone gas-liquid separation and liquid return device according to claim 5, characterized in that: The fan blade has a cavity, and the surface of the fan blade has a through hole that communicates with the cavity. A separation port is provided at the end opposite to the rotation direction of the fan blade.

7. A cyclone gas-liquid separation and liquid return device according to claim 5, characterized in that: The air inlet is located at the top of the tank body, and the gas-liquid centrifugal fan is installed at the top of the tank body. Gas is blown from the air inlet to the gas-liquid centrifugal fan. The air outlet is located on the side wall of the tank body and below the gas-liquid centrifugal fan. The air inlet is connected to the air inlet pipe.

8. A cyclone gas-liquid separation and liquid return device according to claim 7, characterized in that: The air inlet is located on the side wall at the top of the tank body, and the air intake direction of the air inlet is offset from the axis of the tank body to form a swirling flow inside the tank body.

9. A cyclone gas-liquid separation and liquid return device according to claim 1, characterized in that: Multiple flow channels are arranged in a ring array on the inner surface of the tank.

10. A cyclone gas-liquid separation and liquid return device according to claim 1, characterized in that: The bottom of the tank is funnel-shaped or arc-shaped; the return port is located at the center of the bottom of the tank and is connected to the return pipe.

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