Spray water return system

Abstract

The utility model discloses a spray water return system which comprises a water storage mechanism, and the output end of the water storage mechanism is sequentially connected with a power mechanism used for conveying spray water, a spray mechanism used for spray cooling, a cooling mechanism used for spray water cooling and a pneumatic diaphragm pump used for spray water backflow. The output end of the pneumatic diaphragm pump is connected with the input end of the water storage mechanism. The spray water return system adopting the structure solves the problem of high cost caused by the fact that an existing spray water return system for cooling a resin adsorption material needs to be additionally provided with a platform to erect a resin tank so as to finish automatic flow of water. An original process that spraying water of a resin adsorption material flows back through self weight and height difference is changed into a process that the pneumatic diaphragm pump is additionally arranged between the tubular heat exchanger and the water tank, and the water is conveyed into the water tank by the pneumatic diaphragm pump, so that the height difference required by the original process that the spraying water flows back through the self weight is reduced, a higher platform is not needed any more, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spray water return, in particular to a spray water return system. Background Art

[0002] Purification devices for industrial tail gas adsorption processes generally use steam desorption, which will cause the adsorption material to be at a high temperature, making it impossible to adsorb again, so there is a cooling process. Traditional adsorption materials are activated carbon fibers or granular carbon, and this kind of adsorption material usually uses external fresh air for cooling. In recent years, a new type of adsorption material - resin has emerged. Due to the completely different characteristics of this adsorption material from traditional adsorption materials, spray water is used for cooling. The cooling process is as follows: The clean water in the water tank is sent by a water pump to the spray pipe at the top of the tank, sprayed onto the top of the resin, and flows through the bed layer. At this time, the water flowing to the bottom of the bed layer has been heated, cooled by a shell-and-tube heat exchanger, and then returned to the water tank for the next spray use. In this process, for the clean water to flow back to the water tank after reaching the spray pipe, a suitable height difference is required to complete the self-flow of the water. To achieve a suitable height difference, a new platform needs to be added to raise the resin tank, thus increasing a lot of costs. To solve this problem, the utility model proposes a spray water return system. Content of the Utility Model

[0003] The purpose of the utility model is to provide a spray water return system, which solves the problem of high cost caused by the need to add a platform to raise the resin tank to complete the self-flow of the spray water return system for cooling the resin adsorption material at present.

[0004] To achieve the above purpose, the utility model provides a spray water return system, which includes a water storage mechanism. The output end of the water storage mechanism is successively connected to a power mechanism for spray water transportation, a spray mechanism for spray cooling, a cooling mechanism for spray water cooling, and a pneumatic diaphragm pump for spray water reflux. The output end of the pneumatic diaphragm pump is connected to the input end of the water storage mechanism. The power mechanism includes a water pump and a reducer, a ball valve, and a check valve arranged on the front and rear pipelines thereof. The spray mechanism includes a resin adsorption tank. The output end of the water storage mechanism is successively connected to the ball valve, the reducer, the input end of the water pump, the output end of the water pump, the reducer, the check valve, the ball valve, and the resin adsorption tank.

[0005] Preferably, the water storage mechanism is a water tank. The pipeline at the input end of the water tank is connected with a flange, and the pipeline at the output end of the water tank is connected to the ball valve near the input end of the water pump.

[0006] Preferably, the input end of the water tank is connected to the output end of the pneumatic diaphragm pump through a flange.

[0007] Preferably, there are spray heads and adsorption materials in the resin adsorption tank, and the bottom of the resin adsorption tank is connected to the cooling mechanism.

[0008] Preferably, the cooling mechanism includes a shell and tube heat exchanger. The input end of the shell and tube heat exchanger is connected to the bottom of the resin adsorption tank through a flange, and the output end pipeline of the shell and tube heat exchanger is connected to the input end of the pneumatic diaphragm pump through a flange.

[0009] Preferably, the spray head is arranged at the inner top of the resin adsorption tank, and the adsorption material is located below the spray head.

[0010] Preferably, several spray heads are provided. The input ends of the several spray heads are connected to a spray pipe, and the input end of the spray pipe passes through the resin adsorption tank and is connected to a ball valve near the output end of the water pump.

[0011] Therefore, the present utility model adopts a spray water return system with the above structure, changing the process of the original resin adsorption material spray water flowing back by its own weight and height difference to adding a pneumatic diaphragm pump between the shell and tube heat exchanger and the water tank, and sending the water into the water tank by the pneumatic diaphragm pump, thereby reducing the height difference required for the original gravity return, no longer requiring a high platform, and reducing the cost. Moreover, selecting a pneumatic diaphragm pump can avoid the problem that the time when the spray water reaches the pump position is uncertain and the pump will run idly when it starts, and the pneumatic diaphragm pump can run idly. Flanges, reducers, ball valves, and check valve components are additionally installed, which can effectively ensure the stability of the water circuit and facilitate maintenance and replacement. In the resin adsorption tank, multiple spray heads are arranged above the adsorption material, which can make the spray water evenly spray on the adsorption material and improve the cooling effect.

[0012] The technical solution of the present utility model will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of an embodiment of a spray water return system of the present utility model.

[0014] Reference numerals:

[0015] 1. Water tank; 2. Water pump; 3. Resin adsorption tank; 31. Spray head; 32. Adsorption material; 4. Shell and tube heat exchanger; 5. Pneumatic diaphragm pump. Specific Embodiments

[0016] The technical solution of the present utility model will be further described below through the drawings and embodiments.

[0017] Unless otherwise defined, the technical terms or scientific terms used in this utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0018] Embodiment

[0019] As Figure 1 As shown, this utility model provides a spray water return system, which includes a water storage mechanism. The output end of the water storage mechanism is sequentially connected to a power mechanism for transporting spray water, a spray mechanism for spray cooling, a cooling mechanism for cooling spray water, and a pneumatic diaphragm pump 5 for returning spray water. The output end of the pneumatic diaphragm pump 5 is connected to the input end of the water storage mechanism. The power mechanism includes a water pump 2 and a reducer, a ball valve and a check valve provided on the front and rear pipelines thereof. The spray mechanism includes a resin adsorption tank 3. The output end of the water storage mechanism is sequentially connected to the ball valve, the reducer, the input end of the water pump 2, the output end of the water pump 2, the reducer, the check valve and the ball valve, and the resin adsorption tank 3.

[0020] The spray water in the water storage mechanism sequentially passes through the power mechanism, the spray mechanism, the cooling mechanism, the pneumatic diaphragm pump 5, and then returns to the water storage mechanism. The water storage mechanism includes a water tank 1. The input end pipeline of the water tank 1 is connected with a flange, and the output end of the water tank 1 is connected to the power mechanism.

[0021] The power mechanism includes a water pump 2 and a reducer, a ball valve and a check valve provided on the front and rear pipelines thereof. The spray water in the water storage mechanism flows out from the output end of the water tank 1 and sequentially passes through the ball valve, the reducer, the input end of the water pump 2, the output end of the water pump 2, the reducer, the check valve and the ball valve, and then flows into the spray mechanism. The reducer here has the functions of adapting to flow changes, improving work efficiency, and ensuring the stable operation of the water circuit system. The ball valve here has the functions of controlling fluid switching, regulating flow rate, preventing leakage, and being easy to operate and maintain. The check valve here has the function of controlling the water flow direction and preventing the spray water from flowing back.

[0022] The spraying mechanism includes a resin adsorption tank 3. Inside the resin adsorption tank 3, there is a spray head 31 and an adsorption material 32. The spray head 31 is arranged at the top inside the resin adsorption tank 3, and the adsorption material 32 is located below the spray head 31. There are several spray heads 31. The input ends of the several spray heads 31 are connected to a spray pipe. The input end of the spray pipe passes through the resin adsorption tank 3 and is connected to a ball valve near the output end of the water pump 2.

[0023] The spraying water in the water storage mechanism enters the spray head 31 from the input end of the resin adsorption tank 3, sprays through the adsorption material 32. When the spraying water sprays out from the spray head 31 and contacts the adsorption material 32, heat exchange occurs, achieving the purpose of cooling the adsorption material 32. The spraying water with heat falls to the bottom of the resin adsorption tank 3 and flows out from the output end of the resin adsorption tank 3 to the cooling mechanism.

[0024] The cooling mechanism includes a shell and tube heat exchanger 4. The input end of the shell and tube heat exchanger 4 is connected to the bottom of the resin adsorption tank 3 through a flange. The output end pipeline of the shell and tube heat exchanger 4 is connected to the input end of a pneumatic diaphragm pump 5 through a flange. The spraying water in the water storage mechanism flows through the flange, the input end of the shell and tube heat exchanger 4, the output end of the shell and tube heat exchanger 4, the flange in sequence, and then flows to the pneumatic diaphragm pump 5.

[0025] The flanges here and the flanges connecting the pipeline at the input end of the water tank 1 both have the functions of achieving sealing and leakage prevention, bearing pressure and force, and facilitating installation and maintenance.

[0026] The water in the water storage mechanism flows through the input end of the pneumatic diaphragm pump 5 and the output end of the pneumatic diaphragm pump 5 in sequence, and then flows to the water storage mechanism. The pneumatic diaphragm pump 5 will send the cooled spraying water into the water tank 1, reducing the original height difference required for self-flow by gravity, no longer requiring a high platform, and reducing costs. The diaphragm pump needs to be correctly selected to avoid the situation where the spraying water cannot flow back in time and accumulates in the resin tank. The pneumatic diaphragm pump 5 is selected in this utility model because the time when the spraying water reaches the pump position is uncertain, and there is an idling period when the pump starts, and the pneumatic diaphragm pump 5 can idle.

[0027] Therefore, the spraying water return system with the above structure in this utility model solves the problem of high cost caused by the need to add a platform to elevate the resin tank to complete the self-flow of water in the current spraying water return system for cooling the resin adsorption material.

[0028] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A spray water return system, characterized in that: It includes a water storage mechanism. The output end of the water storage mechanism is successively connected to a power mechanism for spraying water conveyance, a spraying mechanism for spraying and cooling, a cooling mechanism for cooling the spraying water, and a pneumatic diaphragm pump for the return of the spraying water. The output end of the pneumatic diaphragm pump is connected to the input end of the water storage mechanism. The power mechanism includes a water pump and a reducer, a ball valve, and a check valve arranged on the front and rear pipelines thereof. The spraying mechanism includes a resin adsorption tank. The output end of the water storage mechanism is successively connected to the ball valve, the reducer, the input end of the water pump, the output end of the water pump, the reducer, the check valve, the ball valve, and the resin adsorption tank.

2. The spray water return system according to claim 1, wherein: The water storage mechanism is a water tank. A flange is connected to the pipeline at the input end of the water tank, and the pipeline at the output end of the water tank is connected to the ball valve near the input end of the water pump.

3. The spray water return system according to claim 2, wherein: The input end of the water tank is connected to the output end of the pneumatic diaphragm pump through a flange.

4. The spray water return system according to claim 3, characterized in that: There are spray heads and adsorption materials in the resin adsorption tank, and the bottom of the resin adsorption tank is connected to the cooling mechanism.

5. The spray water return system according to claim 4, characterized in that: The cooling mechanism includes a shell and tube heat exchanger. The input end of the shell and tube heat exchanger is connected to the bottom of the resin adsorption tank through a flange, and the pipeline at the output end of the shell and tube heat exchanger is connected to the input end of the pneumatic diaphragm pump through a flange.

6. A spray water return system according to claim 4, characterized in that: The spray heads are arranged at the inner top of the resin adsorption tank, and the adsorption materials are located below the spray heads.

7. A spray water return system according to claim 6, characterized in that: A plurality of spray heads are provided. The input ends of the plurality of spray heads are connected to a spray pipe, and the input end of the spray pipe passes through the resin adsorption tank and is connected to the ball valve near the output end of the water pump.

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