Gas-liquid separation device

Abstract

The utility model discloses a gas-liquid separation device which comprises a shell, a gas-liquid separation pipe is vertically arranged in the shell, a cavity is arranged between the shell and the gas-liquid separation pipe, a spiral pipe is arranged around the gas-liquid separation pipe and in the shell, a gas supply head is connected with a gas supply pipe towards the inside of the gas-liquid separation pipe, and the gas supply pipe is connected with the gas-liquid separation pipe. A baffle is installed at the position, connected with the air supply pipe, in the air-liquid separation pipe, a top plate is installed on the top of the interior of the air-liquid separation pipe, a foam breaking net is fixedly installed on the top plate, and an umbrella plate separator is installed between the top plate and the baffle at the topmost end in the shell. The heat transfer is reduced, the liquid material is prevented from being gasified too fast to lose control while the wall surface of the spiral pipe is prevented from frosting, the gas-liquid mixture is subjected to gas-liquid separation in the spiral pipe and is further subjected to gas-liquid separation in the gas-liquid separation pipe, and the gas-liquid separation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation, in particular to a gas-liquid separation device. Background Art

[0002] Liquid oxygen is the form of oxygen in liquid state. It has important applications in aerospace, submarine and gas industries. Liquid oxygen is a light blue liquid with strong paramagnetism.

[0003] In the process flow of krypton-xenon refining, the raw liquid oxygen needs to enter the gas-liquid separator in the small cold box of the liquid oxygen pump. The liquid oxygen enters the medium-pressure liquid oxygen pump from the bottom of the gas-liquid separator for pressurization, and then is vaporized into room-temperature krypton-lean xenon gas through the vaporizer. It is then decompressed and sent to the heat exchanger to exchange heat with the krypton-lean xenon gas from the methane removal catalyst furnace to increase its temperature. It is then heated to the temperature required for the catalytic reaction by an electric heater and enters the methane removal catalyst furnace.

[0004] Since liquid oxygen evaporates very quickly at room temperature, the amount of oxygen evaporated in the gas-liquid separator is large, which can easily cause the gas pressure in the gas-liquid separator to be too high and cause damage, and it is also difficult to control the gas delivery rate. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a gas-liquid separation device, which solves the technical problems raised in the above background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical scheme: a gas-liquid separation device comprises a shell, a gas-liquid separation tube is vertically installed inside the shell, a cavity is provided between the shell and the gas-liquid separation tube, a spiral tube is installed around the gas-liquid separation tube and in the shell, an air supply head is fixedly installed on the top of one side of the spiral tube, the air supply head is connected to the gas-liquid separation tube inside the gas-liquid separation tube, a baffle is installed at the connection of the air supply tube inside the gas-liquid separation tube, a top plate is installed on the top of the gas-liquid separation tube, a foam breaking net is fixedly installed on the top plate, an umbrella plate separator is installed between the top plate and the top baffle in the shell, the top of the gas-liquid separation tube is connected to the air outlet pipe, the bottom of the gas-liquid separation tube is connected to the liquid return pipe, the top of the spiral tube is connected to the air inlet pipe through the wall of the shell, and the bottom side wall of the bottom end of the spiral tube is connected to the liquid material reflux pipe facing the gas-liquid separation tube.

[0007] Preferably, a plurality of separation holes are provided on the umbrella plate separator.

[0008] Preferably, the foam breaking net adopts an annular structure.

[0009] Preferably, the cavity is in a negative pressure state.

[0010] Preferably, the baffle is opened downward.

[0011] Preferably, the top and the bottom of the shell both adopt a hemispherical structure.

[0012] Beneficial Effects

[0013] The utility model provides a gas-liquid separation device, which has the following beneficial effects: when the device is in use, the cavity is in a negative pressure state, which reduces the transfer of heat, prevents frost on the spiral tube wall, and prevents the liquid material from gasifying too quickly and losing control, the gas-liquid mixture is separated into gas and liquid in the spiral tube, and further gas-liquid separation is performed in the gas-liquid separation tube, thereby increasing the gas-liquid separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a gas-liquid separation device described in the utility model.

[0015] In the figure: 1. outer shell; 2. gas-liquid separation pipe; 3. spiral pipe; 4. air supply head; 5. air supply pipe; 6. baffle; 7. umbrella plate separator; 8. top plate; 9. foam breaking net; 10. air outlet pipe; 11. liquid return pipe; 12. liquid material reflux pipe; 13. air inlet pipe; 14. cavity. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 The utility model provides a technical solution for a gas-liquid separation device: a gas-liquid separation device, comprising a shell 1, a gas-liquid separation tube 2 is vertically installed inside the shell 1, a cavity 14 is provided between the shell 1 and the gas-liquid separation tube 2, a spiral tube 3 is installed around the gas-liquid separation tube 2 and in the shell 1, an air supply head 4 is fixedly installed on the top of one side of the spiral tube 3, and the air supply head 4 is connected to an air supply tube 5 in the gas-liquid separation tube 2, a baffle 6 is installed at the connection between the air supply tube 5 in the gas-liquid separation tube 2, a top plate 8 is installed on the top of the gas-liquid separation tube 2, a foam breaking net 9 is fixedly installed on the top plate 8, an umbrella plate separator 7 is installed between the top plate 8 and the top baffle 6 in the shell 1, an air outlet pipe 10 is connected to the top of the gas-liquid separation tube 2, a liquid return pipe 11 is connected to the bottom of the gas-liquid separation tube 2, an air inlet pipe 13 is connected to the top of the spiral tube 3 through the wall of the shell 1, and a liquid material reflux pipe 12 is connected to the bottom side wall of the bottom end of the spiral tube 3 facing the gas-liquid separation tube 2.

[0018] Furthermore, a plurality of separation holes are provided on the umbrella plate separator 7 .

[0019] Furthermore, the foam breaking net 9 adopts an annular structure to increase the gas movement path, reduce the gas filtration speed, and improve the gas-liquid separation effect.

[0020] Furthermore, the cavity 14 is in a negative pressure state, which reduces heat transfer.

[0021] Furthermore, the opening of the baffle 6 faces downward.

[0022] Furthermore, the top and the bottom of the housing 1 both adopt a hemispherical structure.

[0023] Embodiment: In this device, the air inlet pipe 13 is connected to the storage tank of liquefied gas. When the liquefied gas enters the spiral tube 3 from the air inlet pipe 13, part of the liquefied gas will evaporate into gas, and the density of the gas is lower than that of the liquefied gas. Therefore, the gaseous material is located at the top of the spiral tube 3, and the liquid material is located at the bottom of the spiral tube 3.

[0024] When the gaseous material passes through the air supply head 4, it will enter the gas-liquid separation tube 2 through the air supply pipe 5 from the air supply head 4. The gaseous material will carry a portion of small particles of liquid material. After these gas-liquid mixtures enter the gas-liquid separation tube 2, they will first accumulate on the wall surface of the baffle 6. Part of the liquid material will adhere to the wall surface of the baffle 6 and flow down along it, and the other part of the liquid material will evaporate into gas under the action of the impact.

[0025] The gaseous material is separated by the umbrella plate separator 7 and further filtered by the foam breaking net 9, and finally discharged from the gas outlet pipe 10 as pure gaseous material.

[0026] The remaining liquid material flows back to the bottom of the housing 1 from the liquid material return pipe 12 , and flows back to the liquid storage tank through the liquid return pipe 11 together with the unvolatile liquid material in the gas-liquid mixture.

[0027] The cavity 14 is in a negative pressure state, with less air, which reduces the heat transfer, prevents the spiral tube 3 wall from frosting, and prevents the liquid material from gasifying too quickly and losing control.

[0028] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A gas-liquid separation device, comprising a housing (1), characterized in that: A gas-liquid separation tube (2) is vertically installed inside the shell (1), a cavity (14) is provided between the shell (1) and the gas-liquid separation tube (2), a spiral tube (3) is installed around the gas-liquid separation tube (2) and inside the shell (1), an air supply head (4) is fixedly installed on the top of one side of the spiral tube (3), the air supply head (4) is connected to an air supply tube (5) inside the gas-liquid separation tube (2), a baffle (6) is installed inside the gas-liquid separation tube (2) at the connection point of the air supply tube (5), and a gas-liquid separation tube (2) is installed on the top of the gas-liquid separation tube (2). A top plate (8) is provided, a foam breaking net (9) is fixedly mounted on the top plate (8), an umbrella plate separator (7) is mounted in the shell (1) between the top plate (8) and the baffle plate (6) at the top end, the top of the gas-liquid separation tube (2) is connected to an air outlet pipe (10), the bottom of the gas-liquid separation tube (2) is connected to a liquid return pipe (11), the top of the spiral tube (3) passes through the wall of the shell (1) and is connected to an air inlet pipe (13), and the bottom side wall of the bottom end of the spiral tube (3) is connected to a liquid material return pipe (12) facing the inside of the gas-liquid separation tube (2).

2. A gas-liquid separation device according to claim 1, characterized in that: The umbrella plate separator (7) is provided with a plurality of separation holes.

3. A gas-liquid separation device according to claim 1, characterized in that: The foam breaking net (9) adopts an annular structure.

4. A gas-liquid separation device according to claim 1, characterized in that: The cavity (14) is in a negative pressure state.

5. The gas-liquid separation device according to claim 1, characterized in that: The baffle (6) has an opening facing downward.

6. A gas-liquid separation device according to claim 1, characterized in that: The top and bottom of the shell (1) both adopt a hemispherical structure.

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