Two-stage cyclone gas-liquid separator

Abstract

The utility model relates to the technical field of gas-liquid separation, in particular to a two-stage cyclone gas-liquid separator, which is characterized in that the separator comprises an inner cylinder, an outer cylinder, an upper feed pipe, a lower discharge pipe and an inner discharge pipe, the inner cylinder is of a tubular structure with an open upper end and a closed lower end, the outer cylinder is of a tubular structure with two closed ends at the upper end, and the inner discharge pipe is of a tubular structure with two closed ends at the lower end. The lower end of the inner cylinder is fixed to the bottom of the outer cylinder through a support, the side wall, inserted into the outer cylinder, of the upper feeding pipe is in tangent connection with the side wall of the upper end of the inner cylinder, and an inner discharging port is formed in the side wall of the lower end of the inner cylinder and connected with an inner discharging pipe. The two ends of the inner discharging pipe are in tangent connection with the outer wall of the inner barrel and the inner wall of the outer barrel respectively, an exhaust port is formed in the top end of the outer barrel and connected with an exhaust pipe, an outer liquid outlet is formed in the side wall of the bottom of the outer barrel and connected with a lower discharging pipe, and the device has the advantages of being simple in structure, good in separation effect, high in separation efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation, in particular to a double-stage cyclone gas-liquid separator with simple structure, good separation effect and high separation efficiency. Background Art

[0002] As we all know, it is difficult to achieve efficient gas-liquid separation for gas-liquid two-phase materials with high gas solubility. Generally, the separation of gas-liquid two-phase can be achieved by high-pressure sedimentation, but the efficiency is low and it is not conducive to continuous production operations in industrial applications. Moreover, in the existing cyclone separation process of gas and liquid, the material cyclone speed is fast, resulting in poor gas-liquid separation effect and low separation efficiency. Moreover, since the exhaust pipe is a structure inserted into the inside of the cyclone separator, it is possible that the liquid is discharged through the exhaust port. Summary of the invention

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies in the prior art and to provide a double-stage cyclone gas-liquid separator with simple structure, good separation effect and high separation efficiency.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A two-stage cyclone gas-liquid separator, characterized in that the separator comprises an inner cylinder, an outer cylinder, an upper feed pipe, a lower discharge pipe, and an inner discharge pipe, the inner cylinder being a tubular structure with an open upper end and a closed lower end, the upper end of the outer cylinder being a tubular structure with closed ends, the lower end of the inner cylinder being fixed to the bottom of the outer cylinder via a bracket, the upper feed pipe being inserted into the side wall of the outer cylinder and being tangentially connected to the side wall of the upper end of the inner cylinder, an inner discharge port being provided on the side wall of the lower end of the inner cylinder, the inner discharge port being connected to the inner discharge pipe, the two ends of the inner discharge pipe being tangentially connected to the outer wall of the inner cylinder and the inner wall of the outer cylinder respectively, an exhaust port being provided on the top of the outer cylinder, the exhaust port being connected to the exhaust pipe, an outgoing liquid port being provided on the bottom side wall of the outer cylinder, the outgoing liquid port being connected to the lower discharge pipe.

[0006] The distance between the upper end of the inner cylinder body and the upper end of the outer cylinder body described in the utility model is 1 / 5 of the height of the outer cylinder body, the distance between the lower end of the inner cylinder body and the lower end of the outer cylinder body is 2 / 5 of the height of the outer cylinder body, and the height of the inner cylinder body is 2 / 5 of the height of the outer cylinder body, which fully ensures the gas-liquid separation effect.

[0007] The outer cylinder body diameter of the utility model is 1.5-2 times of the inner cylinder body diameter, thereby ensuring the gas-liquid separation effect.

[0008] The lower part of the outer cylinder below the inner discharge pipe of the utility model is tapered, and the diameter of the lower part of the outer cylinder is gradually reduced, thereby increasing the swirl speed and ensuring the centrifugal separation effect.

[0009] The minimum diameter of the lower part of the tapered outer cylinder of the utility model is greater than the outer diameter of the inner cylinder, thereby ensuring the gas-liquid separation effect.

[0010] The upper end of the inner cylinder described in the utility model is provided with an inner sealing plate, and the middle part of the inner sealing plate is provided with an overflow port, through which the outflow of liquid or gas is achieved, and at the same time, the inner sealing plate can block the swirling liquid on the periphery to prevent the liquid from being discharged through the upper part of the inner cylinder.

[0011] The utility model adopts the above structure, and has the advantages of simple structure, good separation effect, high separation efficiency, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model in which the outer cylinder body is a cylinder-shaped structure.

[0013] Figure 2 It is a structural schematic diagram of the utility model in which the outer cylinder is a conical structure.

[0014] Figure 3 It is a top view of the connection relationship between the inner cylinder and the outer cylinder in the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] As shown in the accompanying drawings, a two-stage cyclone gas-liquid separator is characterized in that the separator comprises an inner cylinder 1, an outer cylinder 2, an upper feed pipe 3, a lower discharge pipe 4, and an inner discharge pipe 5. The inner cylinder 1 is set as a tubular structure with an upper end open and a lower end closed, and the upper ends of the outer cylinder 2 are tubular structures closed at both ends. The lower end of the inner cylinder 1 is fixed to the bottom of the outer cylinder 2 through a bracket 6, and the upper feed pipe 3 is inserted into the side wall of the outer cylinder 2 and is tangentially connected to the side wall of the upper end of the inner cylinder 1. An inner discharge port is provided on the side wall of the lower end of the inner cylinder 1, and the inner discharge port is connected to the inner discharge pipe 5. The two ends of the inner discharge pipe 5 are tangentially connected to the outer wall of the inner cylinder 1 and the inner wall of the outer cylinder 2 respectively. An exhaust port is provided at the top of the outer cylinder 2, and the exhaust port is connected to the exhaust pipe 7. An outgoing liquid port is provided on the bottom side wall of the outer cylinder 2, and the outgoing liquid port is connected to the lower discharge pipe 4.

[0017] Furthermore, the distance between the upper end of the inner cylinder 1 and the upper end of the outer cylinder 2 is 1 / 5 of the height of the outer cylinder 2, the distance between the lower end of the inner cylinder 1 and the lower end of the outer cylinder 2 is 2 / 5 of the height of the outer cylinder 2, and the height of the inner cylinder 1 is 2 / 5 of the height of the outer cylinder 2, which fully ensures the gas-liquid separation effect.

[0018] Furthermore, the diameter of the outer cylinder 2 is 1.5-2 times the diameter of the inner cylinder 1 to ensure the gas-liquid separation effect.

[0019] Furthermore, the lower portion of the outer cylinder 2 below the inner discharge pipe 5 is tapered, gradually reducing the diameter of the lower portion of the outer cylinder 2, increasing the swirl speed to ensure the centrifugal separation effect.

[0020] Furthermore, the minimum diameter of the lower part of the tapered outer cylinder 2 is greater than the outer diameter of the inner cylinder 1, thereby ensuring the gas-liquid separation effect.

[0021] Furthermore, an inner sealing plate 8 is provided at the upper end of the inner cylinder, and an overflow port 9 is provided in the middle of the inner sealing plate 8. The overflow port 9 allows the outflow of liquid or gas, and at the same time, the inner sealing plate 8 can block the swirling liquid on the periphery to prevent the liquid from being discharged through the top of the inner cylinder.

[0022] Furthermore, the lower end of the exhaust pipe 7 extends to the inside of the outer cylinder 2 and to the top of the inner cylinder 1 .

[0023] There are two situations in the implementation of this patent. One is that the lower end of the outer cylinder 2 is a cylindrical structure, and the other is that the lower part of the outer cylinder 2 is a conical structure. The material of this patent enters the inner wall of the inner cylinder 1 from the upper feed pipe 3 tangentially. Since the material performs a rotating centrifugal motion on the inner cylinder 1, the cyclone effect of the inner cylinder 1 separates the bubbles and liquid in the material. The gas moves toward the center of the inner cylinder 1, and the liquid moves toward the outside. Since an inner sealing plate 8 is provided above the inner cylinder, the inner sealing plate 8 organizes the liquid on the outside of the swirl to flow upward, and discharges the liquid from the inner discharge pipe at the bottom, and the gas in the middle is discharged through the overflow port 9. In this process, a primary separation of gas and liquid is performed. After a portion of the liquid is discharged through the overflow port 9, it falls on the swirl liquid below the outer cylinder and continues to swirl. After the gas and liquid are separated in the inner cylinder 1, the material is discharged from the lower end of the inner cylinder 1 along the inner discharge pipe 5 and then moves along the tangent on the inner wall of the outer cylinder 2. Since the material flows from the inner cylinder 1 with a small inner diameter toward the straight The swirl of the outer cylinder 2 with a diameter of 1.5-2.0 reduces the swirl speed in the outer cylinder 2. At this time, due to the instantaneous slowing of the speed, the gas and liquid that have not been separated can be mixed, and after mixing, the bubbles in the gas-liquid mixed material can be separated again by the swirl action. Since the diameter of the outer cylinder 2 is 1.5-2 times the diameter of the inner cylinder 1, within this range, the speed of the material will not decrease very much, and the secondary swirl separation will continue. In the second case, when the lower part of the cylinder is set to a conical structure, the separation speed of the material can be accelerated under the conical structure, thereby further increasing the efficiency of the secondary separation. Moreover, since the upper end of the inner cylinder 1 of the present patent is set below the top of the outer cylinder 2, when the feed amount is large, the material can overflow along the upper end of the inner cylinder 1 into the outer cylinder 2, and the material entering the outer cylinder 2 can continue to swirl with the swirl on the outer cylinder 2. Therefore, the gas-liquid separation effect is better guaranteed. Due to the adoption of the above structure, the utility model has the advantages of simple structure, good separation effect and high separation efficiency.

Claims

1. A two-stage cyclone gas-liquid separator, characterized in that The separator comprises an inner cylinder, an outer cylinder, an upper feed pipe, a lower discharge pipe and an inner discharge pipe. The inner cylinder is a tubular structure with an open upper end and a closed lower end. The upper end of the outer cylinder is a tubular structure with closed ends. The lower end of the inner cylinder is fixed to the bottom of the outer cylinder via a bracket. The upper feed pipe is inserted into the side wall of the outer cylinder and is tangentially connected to the side wall of the upper end of the inner cylinder. An inner discharge port is provided on the side wall of the lower end of the inner cylinder, and the inner discharge port is connected to the inner discharge pipe. The two ends of the inner discharge pipe are respectively tangentially connected to the outer wall of the inner cylinder and the inner wall of the outer cylinder. An exhaust port is provided at the top of the outer cylinder, and the exhaust port is connected to the exhaust pipe. An outgoing liquid port is provided on the bottom side wall of the outer cylinder, and the outgoing liquid port is connected to the lower discharge pipe.

2. A double-stage cyclone gas-liquid separator according to claim 1, characterized in that The distance between the upper end of the inner cylinder and the upper end of the outer cylinder is 1 / 5 of the height of the outer cylinder, the distance between the lower end of the inner cylinder and the lower end of the outer cylinder is 2 / 5 of the height of the outer cylinder, and the height of the inner cylinder is 2 / 5 of the height of the outer cylinder.

3. A double-stage cyclone gas-liquid separator according to claim 1, characterized in that The diameter of the outer cylinder is 1.5-2 times the diameter of the inner cylinder.

4. A double-stage cyclone gas-liquid separator according to claim 1, characterized in that The lower part of the outer cylinder below the inner discharge pipe is tapered.

5. A double-stage cyclone gas-liquid separator according to claim 4, characterized in that The minimum diameter of the lower part of the tapered outer cylinder is greater than the outer diameter of the inner cylinder.

6. A double-stage cyclone gas-liquid separator according to claim 1, characterized in that An inner sealing plate is provided at the upper end of the inner cylinder, and an overflow port is provided in the middle of the inner sealing plate, through which liquid or gas can flow out. At the same time, the inner sealing plate can block the swirling liquid on the periphery to prevent the liquid from being discharged through the top of the inner cylinder.

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