Air-liquid separation tank for compressed air

Abstract

The gas-liquid separator for compressed air provided by this utility model includes a tank body, an exhaust pipe, and a swirl vane device. The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and a sealing plate connected to the bottom of the tank body. The tank body is provided with an air inlet and an exhaust outlet. The exhaust pipe is located inside the tank body, with its upper end connected to the exhaust outlet and its lower end extending downward and coaxial with the tank body to form a straight pipe section. The swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet. By sleeved with an elliptical guide shroud on the straight pipe section, which is located below the swirl vane device and higher than the lower end of the straight pipe section, and a cooling coil for cooling is set between the elliptical guide shroud and the straight pipe section, the inlet and outlet ends of the cooling coil penetrate the tank body and extend outward. This not only utilizes the guiding effect of the elliptical guide shroud to prevent liquid water from being re-entrained into the exhaust pipe by the airflow, but also enables water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid separation technology, specifically to a gas-liquid separator for compressed air. Background Technology

[0002] Compressed air is air compressed by external force. It is characterized by its clarity, transparency, ease of transport, and wide availability. It is an important power source and is widely used in the production of various products. However, during compression, water in the air is also forced in, resulting in compressed air containing liquid water. Therefore, gas-liquid separation is required before it can be used.

[0003] Most existing gas-liquid separation equipment uses a cyclone method to collect liquid water before discharging it. The gas-liquid separation rate is relatively low. The collected liquid water drips down along the inlet of the compressed air output pipe and is re-entered by the airflow, so that the output compressed air still contains a certain amount of liquid water. In addition, the output compressed air maintains a high temperature, which can easily affect subsequent use. Utility Model Content

[0004] The purpose of this invention is to solve one or more problems in the prior art and to provide a gas-liquid separator for compressed air.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a compressed air gas-liquid separator, comprising:

[0006] The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and an end plate connected to the bottom of the tank body. The tank body is provided with an air inlet for inputting compressed air and an air outlet for outputting compressed air.

[0007] The exhaust pipe is located inside the tank body. The upper end of the exhaust pipe is connected to the exhaust port, and the lower end of the exhaust pipe extends downward and is coaxial with the tank body to form a straight pipe section.

[0008] Swirl vane device, the swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet;

[0009] An elliptical guide shroud is fitted onto the straight pipe section. The elliptical guide shroud is located below the swirl vane device and above the lower end of the straight pipe section. A cooling coil for cooling is provided between the elliptical guide shroud and the straight pipe section. The inlet and outlet ends of the cooling coil penetrate the tank body and extend outward.

[0010] Preferably, the cooling coil is disposed in close contact with the inner wall of the elliptical air guide.

[0011] More preferably, the cooling coil is also disposed in conjunction with the outer wall of the straight pipe section.

[0012] Preferably, a conical flow guide is also fitted on the straight pipe section, the conical flow guide is located below the elliptical flow guide, and the outer diameter of the conical flow guide is not less than the outer diameter of the elliptical flow guide.

[0013] More preferably, the lower end of the straight pipe section protrudes downward from the bottom surface of the conical flow guide.

[0014] Preferably, the exhaust port and the air inlet are at the same height and symmetrically distributed on both sides of the centerline of the tank body.

[0015] Preferably, the swirl vane device includes a plurality of swirl vanes evenly distributed around the axis of the straight pipe section. The swirl vanes are formed by bending trapezoidal vanes with two curved sides. The inner side of the trapezoidal vane is connected to the outer wall of the straight pipe section, and the outer side of the trapezoidal vane is bent downward to form an inclined air guide surface.

[0016] More preferably, the tip of the outer waist of the trapezoidal piece is fitted to the inner wall of the can body, and the bending angle of the outer waist of the trapezoidal piece is 20-40 degrees.

[0017] Preferably, the elliptical head has a pressure gauge interface at its center, and the elliptical head is also connected to a plurality of lifting lugs symmetrically distributed around the pressure gauge interface.

[0018] Preferably, the sealing plate has a drain port, and there are multiple drain ports symmetrically distributed along the axis of the tank body. The drain ports are threaded with plugs.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] The gas-liquid separator for compressed air provided by this utility model includes a tank body, an exhaust pipe, and a swirl vane device. The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and a sealing plate connected to the bottom of the tank body. The tank body is provided with an air inlet and an exhaust outlet. The exhaust pipe is located inside the tank body, with its upper end connected to the exhaust outlet and its lower end extending downward and coaxially with the tank body to form a straight pipe section. The swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet. By sleeved with an elliptical guide shroud on the straight pipe section, which is located below the swirl vane device and higher than the lower end of the straight pipe section, and a cooling coil for cooling is set between the elliptical guide shroud and the straight pipe section, the inlet and outlet ends of the cooling coil penetrate the tank body and extend outward. This not only utilizes the position and guiding effect of the elliptical guide shroud to prevent liquid water from being re-entered into the exhaust pipe by the airflow, but also enables water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use. Attached Figure Description

[0021] Figure 1This is a front view schematic diagram of Embodiment 1 of the present utility model, with a partial cross-sectional view.

[0022] Figure 2 yes Figure 1 A top-down view.

[0023] Figure 3 yes Figure 1 A top view of the swirling vane device.

[0024] Figure 4 This is a front view schematic diagram of Embodiment 2 of this utility model, with a partial cross-sectional view.

[0025] Figure 5 yes Figure 4 A top-down view.

[0026] Among them: 10. Tank body; 11. Tank frame; 111. Air inlet; 112. Exhaust outlet; 12. Elliptical head; 121. Pressure gauge interface; 122. Lifting lug; 13. Sealing plate; 131. Drain outlet; 132. Plug; 20. Exhaust pipe; 21. Straight pipe section; 30. Swirl vane device; 31. Swirl vane; 32. Trapezoidal vane; 321. Inner waist; 322. Outer waist; 33. Inclined air guide surface; 40. Elliptical air guide shroud; 50. Cooling coil; 51. Inlet end; 52. Outlet end; 60. Conical air guide shroud. Detailed Implementation

[0027] Example 1, as Figures 1 to 3 As shown, the compressed air gas-liquid separator provided by this utility model includes: a tank body 10, an exhaust pipe 20, a swirl vane device 30, an elliptical guide shroud 40, and a cooling coil 50. The tank body 10 includes a cylindrical tank body 11, an elliptical end cap 12 connected to the top of the tank body 11, and a sealing plate 13 connected to the bottom of the tank body 11. The tank body 11 has an air inlet 111 for inputting compressed air into the tank body 10 and an exhaust port 112 for outputting compressed air from inside the tank body to the outside. The exhaust port 112 is at the same height as the air inlet 111 and symmetrically distributed on both sides of the axis of the tank body 11. The exhaust pipe 20 is located inside the tank body 11. The upper end is bent and connected to the exhaust port 112. The lower end of the exhaust pipe 20 extends vertically downward and is coaxial with the tank body 11 to form a straight pipe section 21. The swirl vane device 30 is sleeved on the upper end of the straight pipe section 21 and is lower than the air inlet 111. The elliptical guide shroud 40 is also sleeved on the straight pipe section 21. The elliptical guide shroud 40 is located below the swirl vane device 30 and higher than the lower end of the straight pipe section 21. The cooling coil 50 is used for cooling. The cooling coil 50 is set between the elliptical guide shroud 40 and the straight pipe section 21 and is set against the inner wall of the elliptical guide shroud 40. The inlet end 51 and the outlet end 52 of the cooling coil 50 penetrate the tank body 11 and extend outward.

[0028] The advantages of this design are that it can utilize the position and guiding effect of the elliptical guide shroud to prevent liquid water from being re-entered into the exhaust pipe by the airflow, and it can also achieve water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use.

[0029] In this embodiment, the swirl vane device 30 includes a plurality of swirl vanes 31 evenly distributed around the axis of the straight pipe section 21. The swirl vanes 31 are formed by bending trapezoidal vanes 32 with two curved sides. The inner side 321 of the trapezoidal vane 32 is connected to the outer wall of the straight pipe section 21, and the outer side 322 of the trapezoidal vane 32 is connected to a bottom edge that is bent downward to form an inclined air guide surface 33.

[0030] Specifically, the tip of the outer waist 322 of the trapezoidal piece 32 is fitted to the inner wall of the can body 11, and the bending angle of the outer waist 322 of the trapezoidal piece 32 is preferably 20-40 degrees. In this embodiment, the angle is 30 degrees.

[0031] In this embodiment, the center of the elliptical end cap 12 is provided with a pressure gauge interface 121, and two lifting lugs 122 are connected to the elliptical end cap 12, which are symmetrically distributed around the pressure gauge interface 121. The end cap 13 is provided with a drain port 131. There are two drain ports 131, which are symmetrically distributed along the axis of the tank body 11. The drain ports 131 are threadedly connected with plugs 132.

[0032] Example 2, as Figure 4 and Figure 5 As shown, Embodiment 2 is basically the same as Embodiment 1, except that in Embodiment 2, the cooling coil 50 is also attached to the outer wall of the straight pipe section 21. This arrangement can further reduce the local temperature of the straight pipe section 21, thereby reducing the temperature of the compressed air passing through the straight pipe section 21.

[0033] To further enhance the flow guiding and gathering effect, a conical flow guide 60 is also fitted on the straight pipe section 21. The conical flow guide 60 is located below the elliptical flow guide 40. The outer diameter of the conical flow guide 60 is equal to the outer diameter of the elliptical flow guide 40, and the lower end of the straight pipe section 21 protrudes downward from the bottom surface of the conical flow guide 60.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A gas-liquid separator for compressed air, comprising: The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and an end plate connected to the bottom of the tank body. The tank body is provided with an air inlet for inputting compressed air and an air outlet for outputting compressed air. The exhaust pipe is located inside the tank body. The upper end of the exhaust pipe is connected to the exhaust port, and the lower end of the exhaust pipe extends downward and is coaxial with the tank body to form a straight pipe section. Swirl vane device, the swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet; Its features are: An elliptical guide shroud is fitted onto the straight pipe section. The elliptical guide shroud is located below the swirl vane device and above the lower end of the straight pipe section. A cooling coil for cooling is provided between the elliptical guide shroud and the straight pipe section. The inlet and outlet ends of the cooling coil penetrate the tank body and extend outward.

2. The compressed air gas-liquid separator according to claim 1, characterized in that: The cooling coil is fitted into the inner wall of the elliptical air guide.

3. The compressed air gas-liquid separator according to claim 2, characterized in that: The cooling coil is also fitted to the outer wall of the straight pipe section.

4. The compressed air gas-liquid separator according to claim 1, characterized in that: A conical guide shield is also fitted onto the straight pipe section. The conical guide shield is located below the elliptical guide shield, and the outer diameter of the conical guide shield is not less than the outer diameter of the elliptical guide shield.

5. The compressed air gas-liquid separator according to claim 4, characterized in that: The lower end of the straight pipe section protrudes downward from the bottom surface of the conical flow guide.

6. The compressed air gas-liquid separator according to claim 1, characterized in that: The exhaust port and the air inlet are at the same height and symmetrically distributed on both sides of the centerline of the tank body.

7. The compressed air gas-liquid separator according to claim 1, characterized in that: The swirl vane device includes multiple swirl vanes evenly distributed around the axis of the straight pipe section. Each swirl vane is formed by bending a trapezoidal vane with two curved sides. The inner side of the trapezoidal vane is connected to the outer wall of the straight pipe section, and the outer side of the trapezoidal vane is bent downward to form an inclined air guide surface.

8. The compressed air gas-liquid separator according to claim 7, characterized in that: The tip of the outer waist of the trapezoidal piece is fitted to the inner wall of the can body, and the bending angle of the outer waist of the trapezoidal piece is 20-40 degrees.

9. The compressed air gas-liquid separator according to claim 1, characterized in that: The elliptical head has a pressure gauge interface at its center, and multiple lifting lugs symmetrically distributed around the pressure gauge interface are also connected to the elliptical head.

10. The compressed air gas-liquid separator according to claim 1, characterized in that: The sealing plate has multiple drain ports that are symmetrically distributed along the axis of the tank body, and each drain port is threaded with a plug.

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