Chlorine cooling device

Abstract

The utility model relates to the technical field of gas cooling equipment, and discloses a chlorine gas cooling device. The problems that in the prior art, a chlorine cooling device is complex in structure and high in manufacturing cost, and welding seams are too many and prone to corrosion are solved. Comprising a cooling water tank, the cooling water tank is provided with a water inlet and a water outlet, at least one integrally-formed gas conveying pipe is arranged in the cooling water tank in a penetrating mode, and the gas inlet end and the gas outlet end of the gas conveying pipe are arranged on the side wall of the cooling water tank. The chlorine cooling device is used for cooling high-temperature chlorine generated by electrolyzing molten salt, is formed by arranging the gas conveying pipe in the cooling water tank in a penetrating mode, and is simple in structure and low in manufacturing cost; the gas conveying pipe is of an integrally-formed structure without welding seams, welding seam corrosion is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cooling equipment, in particular to a chlorine gas cooling device. Background Art

[0002] During the process of producing metallic lithium by molten salt electrolysis, chlorine gas is generated. In factories, sodium hydroxide solution is usually used to absorb the chlorine gas generated in molten salt electrolysis to obtain the by-product sodium hypochlorite. However, the temperature of the chlorine gas generated by electrolyzing molten salt is high. If the chlorine gas is not cooled, the temperature of the absorption tower will rise, and the high temperature will cause the decomposition of the sodium hypochlorite product, resulting in a decrease in concentration. Therefore, a chlorine gas cooling device is needed. And chlorine gas is slightly soluble in water, with a solubility of 1% at 9.6 °C. Part of the chlorine gas reacts with water to form HCI and HCIO. Therefore, wet chlorine has strong oxidizing properties. The existing chlorine gas cooling devices are arranged in multiple chambers with pipes and plates connected, which have complex structures and high costs. There are many welds between the pipes and plates, and crevice corrosion is likely to occur at the welds, which will corrode the welds of the chlorine gas cooling device, thereby reducing the service life of the chlorine gas cooling device. Therefore, the device for cooling chlorine gas should not have too many welds.

[0003] In view of the above mechanism, a chlorine gas cooling device with fewer welds is needed to cool the high-temperature chlorine gas generated by electrolyzing molten salt. Summary of the Utility Model

[0004] In order to solve the above problems, the present invention aims to provide a chlorine gas cooling device, which has the characteristics of simple structure, low manufacturing cost and few welds.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A chlorine gas cooling device disclosed by the utility model includes a cooling water tank, the cooling water tank is provided with a water inlet and a drain outlet, at least one integrally formed gas transmission pipe is penetrated in the cooling water tank, and the air inlet end and the air outlet end of the gas transmission pipe are arranged on the side wall of the cooling water tank.

[0007] Further, the cooling water tank is a cooling water pipe, the gas transmission pipe is arranged along the length direction of the cooling water pipe, both ends of the cooling water pipe are provided with blocking plates, and the air inlet end and the air outlet end of the gas transmission pipe are penetrated through the corresponding blocking plates.

[0008] Further, four gas transmission pipes are evenly arranged in the cooling water pipe.

[0009] Further, both ends of the cooling water pipe are respectively provided with an air inlet pipe joint and an exhaust pipe joint corresponding to the air inlet end and the air outlet end of the gas transmission pipe.

[0010] Further, an inlet joint and a drain joint are respectively arranged at the water inlet and the drain outlet of the cooling water pipe.

[0011] Further, the gas transmission pipe is an alloy pipe.

[0012] The beneficial effects of the present utility model are as follows: A chlorine cooling device of the present application is used to cool high-temperature chlorine gas generated by electrolyzing molten salt. The chlorine cooling device is composed of a gas transmission pipe passing through a cooling water tank, with a simple structure and low manufacturing cost. During use, cooling water is introduced from the water inlet of the cooling water tank, and high-temperature chlorine gas is introduced into the intake end of the gas transmission pipe. The high-temperature chlorine gas exchanges heat with the cooling water in the cooling water tank through the gas transmission pipe. The temperature of the cooling water rises, and the temperature of the high-temperature chlorine gas drops. The chlorine gas with a reduced temperature is output from the exhaust end of the gas transmission pipe and introduced into a sodium hydroxide solution for absorption to obtain a by-product of sodium hypochlorite, avoiding the decomposition of sodium hypochlorite at too high a temperature and ensuring the quality of the obtained sodium hypochlorite. The cooling water with a rising temperature flows out from the drain outlet of the cooling water tank. The gas transmission pipe is an integrally formed structure without welds, effectively avoiding weld corrosion and increasing the service life of the chlorine cooling device. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of a chlorine cooling device provided by an embodiment of the present utility model;

[0015] Figure 2 It is a front view of a chlorine cooling device provided by an embodiment of the present utility model;

[0016] Figure 3 It is a top view of a chlorine cooling device provided by an embodiment of the present utility model;

[0017] Figure 4 It is a left view of a chlorine cooling device provided by an embodiment of the present utility model.

[0018] Reference numerals: cooling water tank 1, inlet joint 2, water inlet 3, exhaust pipe joint 4, intake pipe joint 5, plug plate 6, gas transmission pipe 7, drain joint 8, drain outlet 9. Detailed Embodiments

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, a chlorine cooling device of the present utility model includes a cooling water tank 1, the cooling water tank 1 is provided with a water inlet 3 and a drain outlet 9, at least one integrally formed gas transmission pipe 7 is penetrated in the cooling water tank 1, and the air inlet end and the exhaust end of the gas transmission pipe 7 are arranged on the side wall of the cooling water tank 1. Among them, the cooling tank 1 is in a cubic shape, a rhombic prism shape or a cylindrical shape. The cooling water pipe 4 can pass cooling water or cold air. The number of the gas transmission pipes 7 is one, two, three, four or more positive integer roots. The gas transmission pipe 7 is welded or integrally formed with the cooling water tank 1.

[0022] Based on the above structure, a chlorine cooling device is used to cool the high-temperature chlorine gas generated by electrolyzing molten salt. The chlorine cooling device is composed of penetrating the gas transmission pipe 7 in the cooling water tank 1, with a simple structure and low manufacturing cost; during use, cooling water is introduced from the water inlet 3 of the cooling water tank 1, and high-temperature chlorine gas is introduced into the air inlet end of the gas transmission pipe 7. The high-temperature chlorine gas exchanges heat with the cooling water in the cooling water tank 1 through the gas transmission pipe 7. The temperature of the cooling water rises, and the temperature of the high-temperature chlorine gas drops. The chlorine gas with a reduced temperature is output from the exhaust end of the gas transmission pipe 7 and introduced into a sodium hydroxide solution for absorption to obtain the by-product sodium hypochlorite, avoiding the decomposition of sodium hypochlorite at too high a temperature, ensuring the quality of the obtained sodium hypochlorite, and the cooling water with a rising temperature flows out from the drain outlet 9 of the cooling water tank 1. The gas transmission pipe 7 is of an integrally formed structure without welds, effectively avoiding weld corrosion and increasing the service life of the chlorine cooling device.

[0023] Preferably, the cooling water tank 1 is a cooling water pipe, the gas transmission pipe 7 is arranged along the length direction of the cooling water pipe, and blocking plates 6 are arranged at both ends of the cooling water pipe. The air inlet end and the exhaust end of the gas transmission pipe 7 penetrate through the corresponding blocking plates 6.

[0024] The cooling water tank 1 is a cylindrical cooling water pipe, which is convenient for the subsequent installation of the air inlet pipe joint 5 and the exhaust pipe joint 4 of the flange structure. The blocking plate 6 is provided with through holes, and the air inlet end and the exhaust end of the gas transmission pipe 7 penetrate through the corresponding through holes in the blocking plate 6.

[0025] Preferably, the four gas pipelines 7 are evenly arranged inside the cooling water pipe.

[0026] Increasing the number of the gas pipelines 7 can improve the cooling efficiency of high-temperature chlorine gas. The adjacent gas pipelines 7 are arranged in parallel, and the distances between the gas pipelines 7 and the inner wall of the cooling water tank 1 (cooling water pipe) are the same.

[0027] Preferably, inlet pipe connectors 5 and exhaust pipe connectors 4 corresponding to the inlet end and the exhaust end of the gas pipeline 7 are respectively arranged at both ends of the cooling water pipe.

[0028] The arrangements of the inlet pipe connectors 5 and the exhaust pipe connectors 4 facilitate the connection of the high-temperature chlorine gas output device and the device for introducing sodium hydroxide solution.

[0029] Preferably, a water inlet connector 2 and a water outlet connector 8 are respectively arranged at the water inlet 3 and the water outlet 9 of the cooling water pipe.

[0030] The arrangements of the water inlet connector 2 and the water outlet connector 8 facilitate the connection of an external water source and a water storage device. The water inlet connector 2 and the water outlet connector 8 are both arranged at the upper end of the cooling water pipe, so that the cooling water can fill the cooling water tank, ensuring the all-round cooling of the gas pipeline 7 by the cooling water.

[0031] Among them, the gas pipeline 7 is an alloy pipe.

[0032] The gas pipeline is an alloy pipe, which has the advantages of corrosion resistance, high temperature resistance, etc., and has the advantage of low cost compared with titanium alloy and Hastelloy alloy. Using this alloy pipe can improve the service life of the chlorine gas cooling device at low cost. Further, the cooling water tank 1 is a cooling water tank made of the same alloy, further improving the service life of the chlorine gas cooling device.

[0033] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all of them should be covered by the protection scope of the present invention.

Claims

1. A chlorine gas cooling device, characterized in that: The invention comprises a cooling water tank (1), wherein the cooling water tank (1) is provided with a water inlet (3) and a water outlet (9), and at least one integrally formed air pipe (7) is passed through the cooling water tank (1), and the air inlet end and the air outlet end of the air pipe (7) are arranged on the side wall of the cooling water tank (1).

2. A chlorine gas cooling device according to claim 1, characterized in that: The cooling water tank (1) is a cooling water pipe, the air supply pipe (7) is arranged along the length direction of the cooling water pipe, and plugging plates (6) are arranged at both ends of the cooling water pipe. The air inlet end and the air outlet end of the air supply pipe (7) are passed through the corresponding plugging plates (6).

3. A chlorine gas cooling device according to claim 2, characterized in that: The four air delivery pipes (7) are evenly arranged in the cooling water pipe.

4. A chlorine gas cooling device according to claim 3, characterized in that: An air intake pipe joint (5) and an exhaust pipe joint (4) corresponding to the air intake end and exhaust end of the air delivery pipe (7) are respectively provided at both ends of the cooling water pipe.

5. A chlorine gas cooling device according to claim 4, characterized in that: The water inlet (3) and the water outlet (9) of the cooling water pipe are respectively provided with a water inlet joint (2) and a water outlet joint (8).

6. A chlorine gas cooling device according to claim 1, characterized in that: The gas delivery pipe (7) is an alloy pipe.

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