Anti-crystallization spray tower

Abstract

The utility model discloses an anti-crystallization spray tower which comprises a spray tower body, a water tank, a water pump and a heating mechanism, the heating mechanism comprises a temperature control module and a heating part, and the heating part is electrically connected with the temperature control module; and the heating component is detachably arranged in the water tank. When crystallization occurs in the water tank, a solution in the water tank can be heated through the heating component, the solution in the water tank flows through the water pump of the spray tower, and the heated solution is conveyed to each part, which is easy to generate crystallization, in the spray tower through the circulating pipeline, so that a good crystallization removal effect is realized; in addition, the heating component is simple in structure and can be detached from the water tank after the crystal removal work is completed, the heating component is in a stable static state when the heating component heats the solution in the water tank, the circular flow of the liquid in the water tank under the action of the water pump cannot be greatly influenced, and the normal operation of the spraying work of the spraying tower is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to an anti-crystallization spray tower. Background Art

[0002] Spray towers are widely used in industrial waste gas treatment. Spray towers can remove harmful substances in waste gas and purify waste gas. Spray towers use water pumps and spray equipment to spray the liquid in the water tank into the waste gas, so that the waste gas and liquid are fully in contact to remove harmful substances in the waste gas.

[0003] For a spray tower operating in a relatively low temperature environment, the solubility of the liquid in the spray tower water tank decreases sharply due to the decrease in temperature, causing the solute in the solution to crystallize. Large areas of crystals will appear in the water tank, which can easily clog the pipes and even cause damage to the water pump and spray equipment.

[0004] The Chinese utility model patent with announcement number CN217887530U discloses a waste gas treatment device, and its technical solution includes a primary spray tower, a secondary spray tower, a photocatalytic oxidizer, and two groups of feeders for storing and lowering solid alkali, one of which is connected to the primary spray tower, and the other is connected to the secondary spray tower. The primary spray tower, the secondary spray tower and the photocatalytic oxidizer are connected in sequence. The primary spray tower and the secondary spray tower each include a liquid collecting pool at the bottom thereof, and each liquid collecting pool is penetrated with a rotatable heat exchange tube, one end of the heat exchange tube is connected to a liquid inlet pipe through a rotary joint, and the other end of the heat exchange tube is connected to a feed pipe through a rotary joint. Each feeder includes a discharge pipe, and the lower end of the discharge pipe is connected to the liquid inlet pipe one by one, and the other end of the feed pipe is connected to the liquid collecting pool, and the first valve is also installed on the liquid inlet pipe and the feed pipe. The utility model uses the heat generated by the dissolution of solid alkali as a heat source to avoid the crystallization of alkali solution in the liquid collecting pool and can greatly reduce energy consumption.

[0005] Although the technical solution disclosed in the above patent can avoid crystallization in the liquid collecting pool, the technical solution of using a motor to drive the heat exchange tube to rotate in the liquid collecting pool to exchange heat with the solid alkali has a relatively complex structure, and the original structure of the spray tower is greatly changed, which is not conducive to reducing costs. In addition, when removing crystals, the rotation of the heat exchange tube will cause turbulence in the liquid in the liquid collecting pool, thereby affecting the spraying work of the spray tower. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an anti-crystallization spray tower with a simple structure and less influence on the spraying work.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: an anti-crystallization spray tower, including a spray tower body, a water tank and a water pump. A circulation pipe connected to the water tank is provided in the spray tower body, and the water pump is connected to the circulation pipe. An exhaust gas inlet and an exhaust gas outlet are provided on the spray tower body, and also include a heating mechanism, the heating mechanism includes a temperature control module and a heating component, and the heating component is electrically connected to the temperature control module; the heating component is detachably arranged in the water tank.

[0008] As an improvement of the above solution: the heating component includes a heating plate and a resistance wire, the resistance wire is fixed on the heating plate and electrically connected to the temperature control module; the water tank is provided with a socket adapted to the heating plate, and the heating plate is plugged into the water tank through the socket.

[0009] As an improvement to the above solution: the resistance wire is arranged on the heating plate in a spiral coil shape or in a multi-segment curve shape.

[0010] As an improvement of the above solution: it also includes a protective sleeve fixed on the heating plate, and the resistance wire passes through the protective sleeve.

[0011] As an improvement of the above solution: the socket is arranged at the top of the water tank, and the heating plate is vertically inserted into the water tank through the socket.

[0012] As an improvement of the above solution: it also includes a sealing cover plate fixed on the top of the heating plate, the sealing cover plate covers the socket, and a sealing ring is fixed on the bottom of the sealing cover plate, which is arranged around the heating plate and forms a sealing fit with the socket, and the sealing ring is in contact with the sealing cover plate.

[0013] As an improvement to the above solution: the outer side surface of one end of the sealing ring away from the sealing cover plate is an inclined surface.

[0014] The beneficial effects of the utility model are as follows: the utility model adds a heating mechanism in the spray tower, uses the temperature control module in the heating mechanism to control the start-up of the heating component and adjust the heating temperature of the heating component, and adopts a detachable manner to install the heating component in the water tank of the spray tower. When crystallization occurs in the water tank, the solution in the water tank can be heated by the heating component, and the solution in the water tank is made to flow by the water pump of the spray tower, and the heated solution is transported to various parts of the spray tower where crystallization is likely to occur through a circulation pipeline, thereby achieving a good crystallization removal effect; and the heating component in the utility model has a simple structure and can be removed from the water tank after the crystallization removal work is completed. When the heating component heats the solution in the water tank, it is in a stable static state, and will not have an excessive impact on the circulating flow of the liquid in the water tank under the action of the water pump, thereby ensuring the normal operation of the spray tower's own spraying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the utility model when the heating component is installed in the water tank;

[0016] Figure 2 It is a schematic diagram of the utility model when the heating component is not installed.

[0017] Marked in the figure: 100-spray tower body, 110-exhaust gas inlet, 120-exhaust gas outlet, 200-water tank, 210-socket, 310-temperature control module, 320-heating component, 321-heating plate, 322-resistance wire, 323-sealing cover, 400-water pump, 500-thermometer. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figure 1 and Figure 2 As shown, the anti-crystallization spray tower disclosed in the utility model includes a spray tower body 100, a water tank 200, a heating mechanism and a water pump 400. A circulation pipeline and a spraying device are arranged inside the spray tower body 100, and an exhaust gas inlet 110 and an exhaust gas outlet 120 are arranged on the spray tower body 100. The exhaust gas inlet 110 is usually arranged at the bottom of the spray tower body 100, and the exhaust gas outlet 120 is usually arranged at the top of the spray tower body 100; the exhaust gas enters the spray tower body 100 through the exhaust gas inlet, and is discharged from the exhaust gas outlet 120 after being sprayed and cleaned by the spraying device. The water tank 200 is installed below the spray tower body 100. The circulation pipe in the spray tower body 100 is connected to the water tank 200. The spray solution in the water tank 200 can enter the interior of the spray tower body 100 through the circulation pipe and supply water to the spray equipment. The water pump 400 is connected to the circulation pipe to pump the solution in the water tank 200 into the circulation pipe.

[0021] In order to eliminate crystallization caused by temperature reduction in the spray tower, the utility model sets a heating mechanism to heat the solution. Figure 1 and Figure 2As shown, the heating mechanism includes an electrically connected temperature control module 310 and a heating component 320. The temperature control module 310 is arranged outside the water tank 200, and the heating component 320 is detachably installed in the water tank 200. The temperature control module 320 is used to control the opening and closing of the heating component 320 and adjust the heating temperature of the heating component 320. When the temperature is low and causes the solution in the spray tower to crystallize, the solution cannot flow due to large-area crystallization, and the nozzle and pipeline of the spray equipment may also be blocked, and the spraying work cannot be carried out normally. At this time, the heating component 320 of the heating mechanism is installed in the water tank 200, and the heating component 320 is started by the temperature control module 310 and a suitable heating temperature is set. The heating component 320 locally heats the crystallized solution in the water tank 200. Due to the solubility relationship, the higher the temperature, the higher the solubility of the solution. The solution after the temperature is increased can dissolve more crystals, so that the crystals in the water tank 200 can be dissolved to make the water tank 20 0 has fluidity again; after the crystals in the water tank 200 are heated and dissolved, the water pump 400 can be started to transport the heated solution in the water tank 200 to the circulation pipeline, and then transport it to the spraying equipment through the circulation pipeline, so as to dissolve the crystals in the spray tower body 100, and eliminate the blockage problem of the pipeline and the nozzle in the spraying equipment caused by the crystallization of the solution. The spraying equipment can also spray the heated solution to various parts of the spray tower body 100, so that the inside of the spray tower body 100 is evenly heated; the subsequently heated solution can also flow back into the water tank 200, so as to achieve a better dissolving effect on the crystals through the circulation of the solution.

[0022] Specifically, Figure 1 and Figure 2 As shown, the heating component 320 used in the heating mechanism of the utility model includes a heating plate 321 and a resistance wire 322. The heating plate 321 is used to install the resistance wire 322, and the resistance wire 322 is fixed on the heating plate 321 and electrically connected with the temperature control module 310 through an electric wire. The heating of the solution in the water tank 200 is achieved by heating the resistance wire 322; both the resistance wire 322 and the temperature control module 310 adopt mature existing technologies, so they are not repeated here. In order to realize real-time monitoring of the temperature of the solution in the water tank 200, a thermometer 500 can also be configured for the heating mechanism, and the temperature of the solution in the water tank 200 can be measured in real time by the thermometer 500, so as to better control the heating temperature. According to the dissolution temperature of the crystal, the heating temperature is set to 10-80°C in the utility model.

[0023] In order to facilitate the disassembly and assembly of the heating component 320, the utility model adopts a plug-in method to install the heating component 320. Figure 1 and Figure 2As shown, the opening on the water tank 200 is used as a socket 210 for inserting the heating component 320. The shape of the socket 210 is adapted to the cross-sectional shape of the heating plate 321, and the heating component 320 can be disassembled and assembled by pulling and inserting. The setting position of the socket 210 is not limited. In the utility model, the socket 210 is set at the top of the water tank 200 as a preferred solution, and the heating component 320 is installed in a vertical insertion manner. The heating plate 321 is vertically inserted into the water tank 200 through the socket 210. When the crystallization work needs to be carried out, the heating plate 321 is inserted into the water tank 200 from the socket 210; after the crystallization work is completed, the heating plate 321 can be pulled out from the socket 210. In order to improve the heating efficiency of the resistance wire 322 on the solution, the utility model increases the setting length and coverage area of ​​the resistance wire 322 as much as possible, and arranges the resistance wire 322 on the heating plate 321 in a spiral disk or multi-segment curve setting.

[0024] The resistance wire 322 can be fixed inside the heating plate 321 or outside the heating plate 321. When the resistance wire 322 is fixed inside the heating plate 321, the heating plate 321 is made of a material with good thermal conductivity. When the resistance wire 322 is fixed outside the heating plate 321, in order to protect the resistance wire 322 and prevent the resistance wire 322 from directly contacting the solution in the water tank 200, a protective sleeve can be arranged on the heating plate 321, and the resistance wire 322 is passed through the protective sleeve. The resistance wire 322 is isolated from the solution by the protective sleeve to increase the service life of the resistance wire 322; the protective sleeve can be a stainless steel sleeve, a titanium sleeve or a tantalum sleeve.

[0025] Furthermore, in order to ensure the sealing effect of the installation location of the heating component 320 during the crystallization removal operation, the utility model installs a sealing cover plate 323 on the top of the heating plate 321. Figure 1 and Figure 2 As shown, the shape of the sealing cover plate 323 matches the shape of the socket 210, and the area of ​​the sealing cover plate 323 is larger than the area of ​​the socket 210 so that the sealing cover plate 323 can completely cover the socket 210; in addition, a sealing ring is also provided below the sealing cover plate 323, which is arranged around the outer periphery of the heating plate 321 and abuts against the sealing cover plate 323, and forms a sealing fit with the socket 210 through the sealing ring. On this basis, in order to facilitate the insertion of the heating plate 321 from the socket 210, the bottom end of the sealing ring, i.e., the end of the sealing ring away from the sealing cover plate, can be further optimized, and the outer side surface of this end of the sealing ring is set as an inclined surface, so that the lower end of the sealing ring forms a tapered insertion end.

Claims

1. An anti-crystallization spray tower, comprising a spray tower body (100), a water tank (200) and a water pump (400), wherein a circulation pipeline connected to the water tank (200) is provided in the spray tower body (100), the water pump (400) is connected to the circulation pipeline, and an exhaust gas inlet (110) and an exhaust gas outlet (120) are provided on the spray tower body (100), characterized in that: It also includes a heating mechanism, which includes a temperature control module (310) and a heating component (320), and the heating component (320) is electrically connected to the temperature control module (310); the heating component (320) is detachably arranged in the water tank (200).

2. The anti-crystallization spray tower according to claim 1, characterized in that: The heating component (320) comprises a heating plate (321) and a resistance wire (322); the resistance wire (322) is fixed on the heating plate (321) and is electrically connected to the temperature control module (310); the water tank (200) is provided with a socket (210) adapted to the heating plate (321); the heating plate (321) is plug-fitted with the water tank (200) via the socket (210).

3. The anti-crystallization spray tower according to claim 2, characterized in that: The resistance wire (322) is arranged on the heating plate (321) in a spiral disk shape or in a multi-section curve shape.

4. The anti-crystallization spray tower according to claim 2, characterized in that: It also includes a protective sleeve fixed on the heating plate (321), and the resistance wire (322) passes through the protective sleeve.

5. The anti-crystallization spray tower according to claim 2, characterized in that: The socket (210) is arranged at the top of the water tank (200), and the heating plate (321) is vertically inserted into the water tank (200) through the socket (210).

6. The anti-crystallization spray tower according to claim 5, characterized in that: It also includes a sealing cover plate (323) fixed on the top of the heating plate (321), wherein the sealing cover plate (323) covers the socket (210), and a sealing ring is fixed to the bottom of the sealing cover plate (323) and is arranged around the heating plate (321) and forms a sealing fit with the socket (210), and the sealing ring is in contact with the sealing cover plate (323).

7. The anti-crystallization spray tower according to claim 6, characterized in that: The outer side surface of one end of the sealing ring away from the sealing cover plate (323) is an inclined surface.

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