A cooling device for acetylene production system using calcium carbide method

Abstract

The present application relates to a cooling device for a calcium carbide acetylene production system, and relates to the technical field of calcium carbide acetylene production. The cooling device comprises a tank body, one end of the tank body is fixedly connected with an air inlet pipe, the other end of the tank body is fixedly connected with an air outlet pipe, a refrigeration pipe is arranged in the tank body, a group of support frames are fixedly arranged on the inner wall of the tank body, the support frames are arranged close to the air inlet pipe, a rotating shaft is rotatably arranged between the support frames, the rotating shaft is connected with a cotton string rope, the cotton string rope is sleeved with filter cotton along the length direction, the cotton string rope and the filter cotton are wound on the rotating shaft, the innermost circle of the filter cotton is fitted with the rotating shaft, the outermost circle of the filter cotton is fitted with the inner wall of the tank body, the filter cotton is clamped between a group of support frames, and the refrigeration pipe is arranged on the side of the support frame away from the air inlet pipe. The present application has the effect of preventing calcium carbide dust from contacting with the refrigeration pipe, avoiding structural phenomena on the refrigeration pipe as much as possible, and ensuring the refrigeration efficiency of the refrigeration pipe.

Description

Technical Field

[0001] This application relates to the field of calcium carbide-based acetylene production technology, and in particular to a cooling device for a calcium carbide-based acetylene production system. Background Technology

[0002] The calcium carbide method for acetylene production is a common acetylene production system. Its principle is to use calcium carbide and water to generate acetylene gas in a reactor. After the reaction is completed, the acetylene gas needs to be cooled down quickly, so a cooler is required.

[0003] One type of cooler in the related technology includes a tank body with an inlet pipe and an outlet pipe connected to it. A cooling pipe connecting the inside and outside of the tank body is fixed inside the tank body and is filled with refrigerant. In use, acetylene is introduced into the tank body through the inlet pipe. The refrigerant in the cooling pipe absorbs heat from the tank body and carries away the heat from the tank body, thereby cooling the acetylene in the tank body. Finally, the cooled acetylene leaves through the outlet pipe.

[0004] In the process of developing this application, it was found that the technology has at least the following problems: if the calcium carbide dust is not cleaned properly, acetylene will be mixed with calcium carbide dust and enter the cooler. The calcium carbide dust will be adsorbed on the inner wall of the tank and the refrigeration pipes, and scale will form as the cooler is used for a long time, which will affect the heat conduction effect of the refrigeration pipes. Utility Model Content

[0005] In order to prevent calcium carbide dust from contacting the refrigeration pipe, minimize structural phenomena on the refrigeration pipe, and ensure the refrigeration efficiency of the refrigeration pipe, this application provides a cooling device for a calcium carbide-based acetylene production system.

[0006] The cooling device for a calcium carbide-based acetylene production system provided in this application adopts the following technical solution:

[0007] A cooling device for a calcium carbide-based acetylene production system includes a tank. One end of the tank is fixed and connected to an inlet pipe, and the other end is fixed and connected to an outlet pipe. A cooling pipe is disposed inside the tank. A set of support frames is fixedly disposed on the inner wall of the tank. A rotating shaft is rotatably disposed between the support frames. A cotton rope is connected to the rotating shaft. Filter cotton is threaded through the cotton rope along its length. The cotton rope and the filter cotton are wound around the rotating shaft. The innermost ring of the filter cotton is in contact with the rotating shaft, and the outermost ring of the filter cotton is in contact with the inner wall of the tank. The filter cotton is clamped between the support frames. The cooling pipe is disposed on the side of the support frames away from the inlet pipe.

[0008] By adopting the above technical solution, acetylene is introduced into the tank through the inlet pipe. Before contacting the refrigeration pipe, the acetylene needs to flow through the filter cotton. The calcium carbide dust mixed in with the acetylene is trapped in the filter cotton during the flow. The acetylene that penetrates the filter cotton comes into contact with the refrigeration pipe, and after being cooled, it is output from the outlet pipe. In this process, the filter cotton prevents the calcium carbide dust from contacting the refrigeration pipe, minimizing structural phenomena on the refrigeration pipe and ensuring the refrigeration efficiency of the refrigeration pipe. In addition, since the filter cotton is wound on the rotating shaft and clamped between a set of support frames, the filter cotton is restrained by the support frames, the rotating shaft, and the inner wall of the tank, ensuring the fit between the filter cotton and the tank and the rotating shaft, and improving the stability of the filter cotton placed in the tank.

[0009] Preferably, the tank body has a cotton replacement pipe fixed to its side wall, which connects the inside and outside of the tank body. The cotton replacement pipe is located close to the filter cotton, and a threaded cap is threaded onto the cotton replacement pipe.

[0010] By adopting the above technical solution, after the filter cotton has been used for a long time, a large amount of calcium carbide dust will be mixed in the filter cotton. At this time, the filter cotton can be taken out and replaced through the cotton replacement tube, and the threaded cap can seal the cotton replacement tube.

[0011] Preferably, the threaded cap is provided with a sealing plug, which abuts against the inner wall of the cotton changing tube and can be inserted into the cotton changing tube.

[0012] By adopting the above technical solution, when the threaded cap is installed on the cotton changing tube, the sealing plug is inserted into the cotton changing tube, which improves the sealing performance of the threaded cap on the cotton changing tube and prevents acetylene gas leakage.

[0013] Preferably, the end of the cotton rope away from the rotating shaft is connected to the sealing plug.

[0014] By adopting the above technical solution, after the threaded cap is removed from the cotton replacement tube, the threaded cap is pulled, and the sealing end pulls the cotton stringing rope away from the tank. The rotating shaft rotates and releases the cotton stringing rope and the filter cotton. The filter cotton is guided by the cotton stringing rope through the cotton replacement tube and thus leaves the tank, which makes it easier to remove the filter cotton.

[0015] Preferably, a torsion spring is provided between the support frame and the rotating shaft, and the torsion spring drives the rotating shaft to rotate in the direction of the winding cotton rope.

[0016] By adopting the above technical solution, after the new filter cotton is re-sleeved along the cotton string, the threaded cap is released, and the torsion spring drives the rotating shaft to rotate in the direction of the cotton string. The filter cotton and the cotton string are then re-wound onto the rotating shaft, which facilitates the installation of the filter cotton.

[0017] Preferably, a connecting rope is provided on the cotton stringing rope, and a backlash hook is connected to the end of the connecting rope. The backlash hook can be hooked back onto the opening of the cotton changing tube.

[0018] By adopting the above technical solution, after the filter cotton and the cotton string are removed, the backing hook is hooked onto the opening of the cotton replacement tube. The backing hook binds the cotton string through the connecting rope, preventing the torsion spring from driving the rotating shaft to rotate, thereby facilitating the replacement of the filter cotton on the cotton string.

[0019] Preferably, a rotating connecting block is rotatably provided inside the threaded cap, and the sealing plug is fixed on the rotating connecting block.

[0020] By adopting the above technical solution, the threaded cap is threadedly connected to the cotton changing tube. When the threaded cap is turned, the threaded cap and the cotton changing tube rotate and slide, while the rotating block only rotates relative to the threaded cap. This makes the sealing plug slide relative to the inner wall of the cotton changing tube, which makes it easier to turn the threaded cap.

[0021] Preferably, the side surface of the threaded cap is provided with friction texture.

[0022] By adopting the above technical solution, the friction force on the side surface of the threaded cap is increased through friction texture, making it easier to screw the threaded cap.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a support frame, rotating shaft, cotton rope, and filter cotton, the fit between the filter cotton and the tank and the rotating shaft is ensured, and the stability of the filter cotton placed in the tank is improved, preventing calcium carbide dust from contacting the refrigeration pipe, minimizing structural phenomena on the refrigeration pipe, and ensuring the refrigeration efficiency of the refrigeration pipe.

[0025] 2. By incorporating a cotton replacement tube, threaded cap, sealing plug, torsion spring, connecting rope, anti-return hook, rotating block, and friction grooves, the filter cotton can be easily removed for replacement and reinstallation, ensuring the cotton replacement tube remains airtight and preventing acetylene gas leakage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a cooling device for a calcium carbide-based acetylene production system provided in the embodiments of this application.

[0027] Figure 2 This is a cross-sectional structural schematic diagram of a cooling device for a calcium carbide-based acetylene production system provided in the embodiments of this application.

[0028] Figure 3 yes Figure 2 Enlarged view of section A.

[0029] Explanation of reference numerals in the attached drawings: 1. Tank body; 11. Inlet pipe; 12. Outlet pipe; 13. Refrigeration pipe; 14. Support frame; 141. Rotating shaft; 142. Torsion spring; 15. Cotton changing pipe; 151. Threaded cap; 1511. Rotating connecting block; 1512. Sealing plug; 1513. Friction pattern; 2. Cotton string; 21. Filter cotton; 22. Connecting rope; 221. Backlash hook. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a cooling device for a calcium carbide-based acetylene production system. (Refer to...) Figures 1 to 3 The device includes a tank body 1, with an inlet pipe 11 fixedly connected to one end and an outlet pipe 12 fixedly connected to the other end. A refrigeration pipe 13 for cooling acetylene is fixed to the inner wall of the tank body 1, along with a set of support frames 14 positioned between the refrigeration pipe 13 and the inlet pipe 11. A rotating shaft 141 rotatably connects the set of support frames 14. A cotton rope 2 is connected to the circumferential wall of the rotating shaft 141, with filter cotton 21 threaded onto the cotton rope 2. The filter cotton 21 and the cotton rope 2 are wound around the rotating shaft 141, with the innermost ring of the filter cotton 21 fitting against the rotating shaft 141 and the outermost ring fitting against the inner wall of the tank body 1. The filter cotton 21 is held between the set of support frames 14 to improve the stability of its installation position.

[0032] Reference Figure 2 and Figure 3 In operation, acetylene gas enters the tank 1 through the inlet pipe 11. First, it is filtered by the filter cotton 21 to remove calcium carbide dust. Then, the acetylene gas flows to the refrigeration pipe 13 and is cooled by it. Finally, the cooled acetylene gas is discharged through the outlet pipe 12. The calcium carbide dust remains adhered to the filter cotton 21; simply removing and replacing the filter cotton 21 is sufficient to remove the calcium carbide dust. This effectively prevents direct contact between calcium carbide dust and the refrigeration pipe 13, thereby reducing scaling on the refrigeration pipe 13 and ensuring refrigeration efficiency.

[0033] For easy replacement of filter cotton 21, please refer to... Figure 2A cotton changing pipe 15, communicating with the interior of the tank 1, is fixed to the side wall of the tank body 1. The cotton changing pipe 15 is located close to the filter cotton 21. A threaded cap 151 is threaded onto the cotton changing pipe 15. The outer wall of the threaded cap 151 is provided with friction grooves 1513 to improve friction. A rotating block 1511 is rotatably provided on the inner wall of the threaded cap 151. A sealing plug 1512 is tightly fitted onto the rotating block 1511, and the sealing plug 1512 fits tightly against the inner wall of the cotton changing pipe 15. One end of the cotton string 2 is connected to the rotating shaft 141, and the other end extends into the cotton changing pipe 15 and is connected to the sealing plug 1512. A connecting rope 22 is connected to the cotton string 2. A backlash hook 221 is connected to the end of the connecting rope 22. The backlash hook 221 can be hooked back onto the opening of the cotton changing pipe 15. A torsion spring 142 is provided between the support frame 14 and the rotating shaft 141 to drive the rotating shaft 141 to wind the cotton rope 2 and the filter cotton 21.

[0034] Reference Figure 2 When the filter cotton 21 needs to be replaced, first unscrew and pull the threaded cap 151. The sealing plug 1512 pulls the cotton string 2 out of the cotton replacement tube 15, and the filter cotton 21 leaves the tank 1 along with the cotton replacement tube 15. Next, hook the backlash hook 221 onto the opening of the cotton replacement tube 15 to prevent the cotton replacement rope from retracting, making it easier to replace the filter cotton 21. At this time, remove the filter cotton 21 from the cotton string 2 and replace it with a new filter cotton 21 on the cotton string 2. Then, remove the backlash hook 221 from the opening of the cotton replacement tube 15, and the torsion spring 142 drives the rotating shaft 141 to automatically wind the cotton replacement rope and the filter cotton 21. Finally, tighten the threaded cap 151, and the threaded cap 151 and the sealing plug 1512 seal the cotton replacement tube 15. This facilitates the replacement of the filter cotton 21.

[0035] The implementation principle of a cooling device for a calcium carbide-based acetylene production system according to an embodiment of this application is as follows: During use, acetylene gas, after being filtered by filter cotton 21 to remove calcium carbide dust, flows to the refrigeration pipe 13 for cooling, while the calcium carbide dust remains in the filter cotton 21. During cleaning, the threaded cap 151 is unscrewed and pulled, and the sealing plug 1512 pulls the cotton string 2 out of the cotton replacement pipe 15, and the filter cotton 21 leaves the tank 1 along with the cotton replacement pipe 15. The filter cotton 21 is removed from the cotton string 2, and a new filter cotton 21 is replaced on the cotton string 2. The torsion spring 142 drives the rotating shaft 141 to automatically wind the cotton replacement rope and the filter cotton 21, and then the threaded cap 151 is tightened, sealing the cotton replacement pipe 15 with the threaded cap 151 and the sealing plug 1512. This prevents the calcium carbide dust mixed in with the acetylene from contacting the refrigeration pipe 13 and adhering to the surface of the refrigeration pipe 13, minimizing structural phenomena on the refrigeration pipe 13 and ensuring the refrigeration efficiency of the refrigeration pipe 13.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling device for an acetylene production system using the calcium carbide process, comprising a tank body (1), one end of the tank body (1) being fixed and connected to an air inlet pipe (11), the other end of the tank body (1) being fixed and connected to an air outlet pipe (12), a refrigeration pipe (13) being arranged in the tank body (1), characterized in that: A group of support frames (14) are fixedly arranged on the inner wall of the tank body (1), a rotating shaft (141) is rotatably arranged between the support frames (14), the rotating shaft (141) is connected to a cotton string rope (2), the cotton string rope (2) is strung with filter cotton (21) along the length direction, the cotton string rope (2) and the filter cotton (21) are wound on the rotating shaft (141), the innermost circle of the filter cotton (21) is in contact with the rotating shaft (141), the outermost circle of the filter cotton (21) is in contact with the inner wall of the tank body (1), the filter cotton (21) is clamped between the group of support frames (14), and the refrigeration pipe (13) is arranged on the side of the support frame (14) away from the air inlet pipe (11).

2. The cooling device for the acetylene production system by the calcium carbide process according to claim 1, characterized in that: A cotton replacement pipe (15) communicating with the inside and outside of the tank body (1) is fixed to the side wall of the tank body (1); the cotton replacement pipe (15) is arranged close to the filter cotton (21); and a threaded cap (151) is threadedly connected to the cotton replacement pipe (15).

3. A cooling device for a calcium carbide process acetylene production system according to claim 2, characterized in that: A sealing plug (1512) is arranged in the threaded cap (151), and the sealing plug (1512) can be inserted into the cotton changing tube (15) and abuts against the inner wall of the cotton changing tube (15).

4. The cooling device for the acetylene production system by calcium carbide process according to claim 3, characterized in that: One end of the cotton string rope (2) away from the rotating shaft (141) is connected to the sealing plug (1512).

5. A cooling device for a calcium carbide process acetylene production system according to claim 4, characterized in that: A torsion spring (142) is provided between the support frame (14) and the rotating shaft (141), and the torsion spring (142) drives the rotating shaft (141) to rotate in the direction of winding the cotton string rope (2).

6. A cooling device for acetylene production system by calcium carbide process according to claim 5, characterized in that: The cotton stringing rope (2) is connected to a connecting rope (22), and the end of the connecting rope (22) is connected to a return-blocking hook (221), and the return-blocking hook (221) can be hooked on the pipe mouth of the cotton changing pipe (15).

7. The cooling device for the acetylene production system by the calcium carbide process according to claim 3, characterized in that: A rotating connecting block (1511) is rotatably arranged inside the threaded cap (151), and the sealing plug (1512) is fixed on the rotating connecting block (1511).

8. The cooling device for the acetylene production system by the calcium carbide process according to claim 3, characterized in that: The side surface of the threaded cap (151) is provided with friction lines (1513).

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