Environment-friendly spraying device for methylal recovery

Abstract

The utility model relates to the technical field of methylal recovery, and discloses an environment-friendly spraying device for methylal recovery, which comprises an absorption tower, a spraying assembly is arranged in the absorption tower, the spraying assembly comprises a spiral pipe, an air outlet hole, a drainage pipe, a pump body, a flow guide pipe, a water tank and a spraying plate, the spiral pipe is arranged in the absorption tower, and the water tank is arranged in the spiral pipe. A plurality of air outlets are formed in the surface of the spiral pipe, a drainage pipe is arranged at the bottom of the absorption tower, and a pump body is arranged on the outer wall of one side of the absorption tower. According to the environment-friendly spraying device for methylal recovery, through the arrangement of the spraying assembly, a solution can be atomized and uniformly sprayed on the filler assembly, meanwhile, non-condensable gas can be dispersed through the gas outlet hole, the dispersed non-condensable gas rises and penetrates through the filler assembly to be subjected to effective reaction, methylal can be effectively separated and recovered, and the recovery rate of methylal is improved. The pump body can be started after the solution is used, and the solution is conveyed into the water tank again to be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of methylal recovery, in particular to an environmentally friendly spraying device for methylal recovery. Background Art

[0002] Methylal is a colorless, clear, volatile, flammable liquid. It is a chemical agent with a low boiling point and excellent water solubility. It can be widely used in cosmetics, pharmaceuticals, household products, industrial automotive products, pesticides, leather polishes, detergents and other products. Due to its good degreasing ability and volatility, methylal can be used as a detergent to replace F11, F13 and chlorinated solvents. Therefore, it is an environmentally friendly product that can replace Freon, reduce volatile organic compound emissions, and reduce air pollution.

[0003] According to the application number 202322406702.7, a methylal non-condensable gas recovery device is disclosed, including a separation tank and an absorption tower, one end of the separation tank is connected to the methylal system through a connecting pipeline, and the other end is connected to the absorption tower through an absorption pipeline, the lower layer of the separation tank is filled with absorption condensate, the upper layer is provided with a gas-liquid separator, the absorption tower is provided with an exhaust port, and the absorption tower is provided with a spray mechanism and a packing layer support mechanism located below the spray mechanism. The utility model performs preliminary absorption and gas-liquid separation through the separation tank, and through the combined design of the spray mechanism and the packing layer support mechanism, it can achieve efficient gas-liquid contact and absorption. The qualified non-condensable gas after absorption is discharged through the exhaust port, and the absorption liquid is circulated back to the spray mechanism for reuse, which can effectively separate and recover methylal, reduce the loss of methylal, achieve the purpose of energy saving and reuse, reduce atmospheric pollution, and also have a good absorption effect.

[0004] The following problems still exist in actual use:

[0005] The existing methylal non-condensable gas is mainly recovered through a condenser, which has a poor recovery effect. Moreover, the release and evaporation of the gas will pollute the environment and may cause safety hazards. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides an environmentally friendly spraying device for methylal recovery, which can effectively separate and recover methylal, reduce the loss of methylal, achieve the purpose of energy saving and recycling, and reduce air pollution, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: an environmentally friendly spraying device for methylal recovery, comprising an absorption tower, wherein a spraying assembly is provided inside the absorption tower;

[0008] The spray assembly includes a spiral tube, an air outlet, a drain pipe, a pump body, a guide pipe, a water tank, and a spray plate. The spiral tube is arranged inside the absorption tower, and a plurality of air outlets are opened on the surface of the spiral tube. The bottom of the absorption tower is provided with a drain pipe, and a pump body is provided on the outer wall of one side of the absorption tower. The input end of the pump body is located inside the drain pipe, and the output end of the pump body is provided with a guide pipe. The top of the guide pipe is provided with a water tank, and the bottom end of the water tank is provided with a spray plate, and the spray plate is located at the top of the absorption tower.

[0009] Preferably, a packing assembly is provided inside the absorption tower, and the packing assembly includes a partition, a diffusion hole, a wire mesh box, and a cavity. The interior of the absorption tower is fixedly connected with a partition, and a plurality of diffusion holes are opened inside the partition. The diffusion holes are conical and wide at the top and narrow at the bottom. The interior of the absorption tower is fixedly connected with a wire mesh box, and a cavity is formed between the wire mesh box and the partition.

[0010] Preferably, one end of the spiral tube is fixedly connected to the inner wall of the absorption tower, the drain pipe is fixedly connected to the bottom of the absorption tower, the pump body is fixedly connected to one side outer wall of the absorption tower, the guide pipe is fixedly connected to the output end of the pump body, the water tank is fixedly connected to the upper surface of the absorption tower and one side is fixedly connected to the guide pipe, and the spray plate is fixedly connected to the bottom of the water tank.

[0011] Preferably, a separation tank is provided on one side of the absorption tower, a feed pipe is fixedly connected to the upper surface of the separation tank, the bottom end of the feed pipe is located inside the separation tank, and a gas-liquid separator is fixedly installed inside the separation tank.

[0012] Preferably, a connecting pipe is fixedly connected to the upper surface of the separation tank, and one end of the connecting pipe is fixedly connected to one end of the spiral tube.

[0013] Preferably, a discharge pipe is fixedly connected to an outer wall of one side of the absorption tower, and support legs are fixedly connected to the four corners of the bottom of the absorption tower.

[0014] Preferably, a valve body is fixedly mounted on the surface of the drain pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The environmentally friendly spraying device for methylal recovery is equipped with a spraying assembly, which can atomize the solution and spray it evenly on the packing assembly. At the same time, the non-condensable gas can be dispersed through the air outlet. The dispersed non-condensable gas rises and passes through the packing assembly for effective reaction, which can effectively separate and recover methylal. After use, the solution can start the pump body and transport it back into the water tank for reuse, thereby reducing solution waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly spray device for methylal recovery provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of an environmentally friendly spray device for methylal recovery provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of an absorption tower of an environmentally friendly spray device for methylal recovery provided by the utility model;

[0020] Figure 4 The utility model provides an environmentally friendly spraying device for methylal recovery Figure 2 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1. Absorption tower; 2. Spray assembly; 201. Spiral tube; 202. Air outlet; 203. Drain pipe; 204. Pump body; 205. Guide pipe; 206. Water tank; 207. Spray plate; 3. Filling assembly; 301. Partition; 302. Diffusion hole; 303. Wire mesh box; 304. Cavity; 4. Separation tank; 5. Feed pipe; 6. Gas-liquid separator; 7. Connecting pipe; 8. Discharge pipe; 9. Valve body; 10. Support leg. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 , an environmentally friendly spray device for recovering methylal, comprising an absorption tower 1, a spray assembly 2 is provided inside the absorption tower 1, the spray assembly 2 includes a spiral tube 201, an air outlet 202, a drain pipe 203, a pump body 204, a guide pipe 205, a water tank 206, and a spray plate 207, the absorption tower 1 is provided with a spiral tube 201, a surface of the spiral tube 201 is provided with a plurality of air outlets 202, a drain pipe 203 is provided at the bottom of the absorption tower 1, a pump body 204 is provided on one outer wall of the absorption tower 1, an input end of the pump body 204 is located inside the drain pipe 203, an output end of the pump body 204 is provided with a guide pipe 205, a top end of the guide pipe 205 is provided with a water tank 206, a bottom end of the water tank 206 is provided with a spray plate 207, and the spray plate 207 is located at the top end of the absorption tower 1;

[0024] By providing a spray component 2, the solution can be atomized and evenly sprayed on the filler component 3. At the same time, the non-condensable gas can be dispersed through the air outlet 202. The dispersed non-condensable gas rises and passes through the filler component 3 for effective reaction, which can effectively separate and recover methylal. After use, the solution can start the pump body 204 and transport it back into the water tank 206 for reuse, thereby reducing solution waste.

[0025] See also Figures 1 to 3 One end of the spiral tube 201 is fixedly connected to the inner wall of the absorption tower 1, the drain pipe 203 is fixedly connected to the bottom of the absorption tower 1, the pump body 204 is fixedly connected to the outer wall of one side of the absorption tower 1, the guide pipe 205 is fixedly connected to the output end of the pump body 204, the water tank 206 is fixedly connected to the upper surface of the absorption tower 1, and one side is fixedly connected to the guide pipe 205, the spray plate 207 is fixedly connected to the bottom of the water tank 206, and the valve body 9 is fixedly installed on the surface of the drain pipe 203;

[0026] The reacted solution falls into the drain pipe 203 through the diffusion hole 302. By starting the pump body 204, the solution in the drain pipe 203 can be sucked into the guide pipe 205, and then re-enters the water tank 206 for reuse, reducing solution waste. The solution after the circulating reaction can be discharged from the drain pipe 203 by opening the valve body 9.

[0027] See also Figures 3 and 4 , a packing assembly 3 is provided inside the absorption tower 1, and the packing assembly 3 includes a partition 301, a diffusion hole 302, a wire mesh box 303, and a cavity 304. The partition 301 is fixedly connected to the inside of the absorption tower 1, and a plurality of diffusion holes 302 are opened inside the partition 301. The diffusion holes 302 are tapered and wide at the top and narrow at the bottom. The wire mesh box 303 is fixedly connected to the inside of the absorption tower 1, and a cavity 304 is formed between the wire mesh box 303 and the partition 301. A discharge pipe 8 is fixedly connected to the outer wall of one side of the absorption tower 1, and support legs 10 are fixedly connected to the four corners of the bottom of the absorption tower 1;

[0028] By providing the filler assembly 3, the reaction time of the methanol solution and the methanol non-condensable gas can be prolonged, thereby increasing the reaction rate. The non-condensable gas is blocked by the partition 301, and the non-condensable gas slowly passes through the diffusion hole 302 and then diffuses into the cavity 304. The atomized solution falls into the wire mesh box 303 and soaks the wire mesh box 303. The solution fills the gaps between the wire mesh boxes 303, making it difficult for the non-condensable gas to rise through the wire mesh box 303. The non-condensable gas remains in the cavity 304 and continuously reacts with the catalyst.

[0029] See also Figures 1 to 2A separation tank 4 is provided on one side of the absorption tower 1, a feed pipe 5 is fixedly connected to the upper surface of the separation tank 4, the bottom end of the feed pipe 5 is located inside the separation tank 4, a gas-liquid separator 6 is fixedly installed inside the separation tank 4, a connecting pipe 7 is fixedly connected to the upper surface of the separation tank 4, and one end of the connecting pipe 7 is fixedly connected to one end of the spiral tube 201;

[0030] The methylal gas is initially absorbed and separated into gas and liquid by the gas-liquid separator 6 inside the separation tank 4, so that the methylal can be effectively separated and recovered, thereby reducing the loss of the methylal.

[0031] In the present invention, the working principle of the device is as follows:

[0032] During use, methylal gas enters the interior of the separation tank 4 through the feed pipe 5, and then passes through the gas-liquid separator 6 in the separation tank 4 for separation. The methylal non-condensable gas rises, and then the non-condensable gas enters the absorption tower 1 through the connecting pipe 7. The solution is atomized by the spray plate 207 and evenly sprayed on the screen box 303. After the non-condensable gas enters the absorption tower 1, it is discharged through the air outlet 202 on the spiral tube 201. The air outlet 202 can disperse the non-condensable gas. The dispersed non-condensable gas rises, and the partition 301 blocks the non-condensable gas. The condensed gas and the non-condensed gas slowly pass through the diffusion hole 302 and diffuse into the cavity 304. As the atomized solution falls into the screen box 303 and soaks the screen box 303, the solution fills the gaps between the screen boxes 303, making it difficult for the non-condensed gas to rise through the screen box 303. The non-condensed gas remains in the cavity 304. The non-condensed gas remaining in the cavity 304 and the solution in the screen box 303 continuously react with the catalyst, which prolongs the reaction time and thus increases the reaction rate. The qualified non-condensed gas is discharged into the atmosphere through the discharge pipe 8.

[0033] The reacted solution falls into the drain pipe 203 through the diffusion hole 302. By starting the pump body 204, the solution in the drain pipe 203 can be sucked into the guide pipe 205, and then re-enters the water tank 206 for reuse, reducing solution waste. The solution after the circulating reaction can be discharged from the drain pipe 203 by opening the valve body 9.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly spraying device for methylal recovery, comprising an absorption tower (1), characterized in that: A spray assembly (2) is provided inside the absorption tower (1); The spray assembly (2) comprises a spiral tube (201), an air outlet (202), a drain pipe (203), a pump body (204), a flow guide pipe (205), a water tank (206), and a spray plate (207). The spiral tube (201) is arranged inside the absorption tower (1), and a plurality of air outlets (202) are opened on the surface of the spiral tube (201). The drain pipe (203) is arranged at the bottom of the absorption tower (1). The pump body (204) is arranged on the outer wall of one side of the absorption tower (1). The input end of the pump body (204) is located inside the drain pipe (203). The output end of the pump body (204) is provided with a flow guide pipe (205). The top end of the flow guide pipe (205) is provided with a water tank (206). The bottom end of the water tank (206) is provided with a spray plate (207), and the spray plate (207) is located at the top end of the absorption tower (1).

2. The environmentally friendly spraying device for methylal recovery according to claim 1, characterized in that: A packing assembly (3) is provided inside the absorption tower (1), and the packing assembly (3) includes a partition (301), a diffusion hole (302), a wire mesh box (303), and a cavity (304). The partition (301) is fixedly connected inside the absorption tower (1), and a plurality of diffusion holes (302) are provided inside the partition (301). The diffusion holes (302) are tapered and wide at the top and narrow at the bottom. The wire mesh box (303) is fixedly connected inside the absorption tower (1), and a cavity (304) is formed between the wire mesh box (303) and the partition (301).

3. The environmentally friendly spraying device for methylal recovery according to claim 1, characterized in that: One end of the spiral tube (201) is fixedly connected to the inner wall of the absorption tower (1), the drain pipe (203) is fixedly connected to the bottom of the absorption tower (1), the pump body (204) is fixedly connected to one side of the outer wall of the absorption tower (1), the guide pipe (205) is fixedly connected to the output end of the pump body (204), the water tank (206) is fixedly connected to the upper surface of the absorption tower (1), and one side is fixedly connected to the guide pipe (205), and the spray plate (207) is fixedly connected to the bottom of the water tank (206).

4. The environmentally friendly spraying device for methylal recovery according to claim 1, characterized in that: A separation tank (4) is provided on one side of the absorption tower (1), a feed pipe (5) is fixedly connected to the upper surface of the separation tank (4), the bottom end of the feed pipe (5) is located inside the separation tank (4), and a gas-liquid separator (6) is fixedly installed inside the separation tank (4).

5. The environmentally friendly spraying device for methylal recovery according to claim 4, characterized in that: A connecting pipe (7) is fixedly connected to the upper surface of the separation tank (4), and one end of the connecting pipe (7) is fixedly connected to one end of the spiral tube (201).

6. The environmentally friendly spraying device for methylal recovery according to claim 1, characterized in that: A discharge pipe (8) is fixedly connected to an outer wall of one side of the absorption tower (1), and support legs (10) are fixedly connected to the four corners of the bottom of the absorption tower (1).

7. The environmentally friendly spraying device for methylal recovery according to claim 1, characterized in that: A valve body (9) is fixedly mounted on the surface of the drain pipe (203).

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