Electrolytic bath protection assembly for sodium hydroxide processing

Abstract

The utility model discloses an electrolytic bath protection assembly for sodium hydroxide processing, which comprises a base, and an electrolytic bath assembly is arranged on the base; the electrolytic cell assembly comprises an anode assembly and a cathode assembly; the anode assembly comprises an anode chamber; an anode is arranged in the anode chamber; the cathode assembly comprises a cathode chamber, a cathode is arranged in the cathode chamber, a first isolation assembly, a second isolation assembly and a third isolation assembly are arranged between the cathode chamber and the anode chamber, and the cathode chamber and the anode chamber are integrally connected; the first isolation assembly comprises diaphragms located in the cathode chamber and the anode chamber, the first isolation assembly is the same as the second isolation assembly and the third isolation assembly in structure, and cavities are formed between the first isolation assembly and the second isolation assembly and between the third isolation assembly and the second isolation assembly. According to the device, the sealing performance of the connection between the diaphragm and the anode chamber and the cathode chamber can be improved, meanwhile, the leakage situation can be found in time, the safety of using the device is improved, and the anode chamber and the cathode chamber are prevented from being exploded and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium hydroxide processing, and specifically relates to a protection component for an electrolytic cell used in sodium hydroxide processing. Background Technique

[0002] Sodium hydroxide, also known as caustic soda, soda ash, caustic soda, and flake soda, is an inorganic compound with the chemical formula NaOH and a relative molecular weight of 39.9970; sodium hydroxide has strong alkalinity and extremely strong corrosiveness, and can be used as an acid neutralizer, complexing masking agent, precipitating agent, precipitation masking agent, chromogenic agent, saponifying agent, skin peeling agent, detergent, etc., and has a very wide range of uses.

[0003] In the industrial production of sodium hydroxide, the chlor-alkali process needs to be used for processing. In the chlor-alkali process, an electrolytic cell is required. At present, a diaphragm is used in the electrolytic cell to separate the anode chamber and the cathode chamber, and the diaphragm is only sealed with the frame of the electrolytic cell using a sealing ring. The sealing performance is poor, and leakage is likely to occur, which easily leads to the mixing of gases and causes an explosion, easily damages the electrolytic cell, and also causes harm to the health of the staff, and improvement is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a protection component for an electrolytic cell used in sodium hydroxide processing, so as to solve the problem that the electrolytic cell is prone to explosion due to leakage and has low safety as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a protection component for an electrolytic cell used in sodium hydroxide processing, including a base, and an electrolytic cell component is arranged on the base;

[0006] The electrolytic cell component includes an anode component and a cathode component;

[0007] The anode component includes an anode chamber, and an anode is arranged inside the anode chamber;

[0008] The cathode component includes a cathode chamber, a cathode is arranged inside the cathode chamber, a first isolation component, a second isolation component, and a third isolation component are arranged between the cathode chamber and the anode chamber, and the cathode chamber and the anode chamber are integrally connected;

[0009] The first isolation component includes a diaphragm located inside the cathode chamber and the anode chamber. The first isolation component has the same structure as the second isolation component and the third isolation component. Cavities are arranged between the first isolation component and the third isolation component and the second isolation component. An exhaust pipe and a drain pipe are respectively arranged at the upper and lower ends of the cavity, and a gas detector and a flow meter are respectively arranged on the third exhaust pipe and the drain pipe.

[0010] Preferably, grooves are provided on the inner walls of the cathode chamber and the anode chamber. A frame is arranged inside the grooves, and a diaphragm is arranged inside the frame.

[0011] Preferably, a sealing ring is arranged on one side of the frame, and fixing bolts are connected between the frame and the anode chamber. The sealing ring is filled between the frame and the groove of the anode chamber.

[0012] Preferably, a first sealing valve is arranged on the drain pipe, and the first sealing valve is located at the bottom of the flowmeter.

[0013] Preferably, a second sealing valve is arranged on the third exhaust pipe, and the second sealing valve is located at the top of the gas detector.

[0014] Preferably, a first liquid inlet pipe is connected to one side of the anode chamber, a first drain pipe is arranged at the bottom of the anode chamber, and a first exhaust pipe is connected to the top side of the anode chamber.

[0015] Preferably, a second liquid inlet pipe is connected to one side of the cathode chamber, a second drain pipe is connected to the bottom of the cathode chamber, and a second exhaust pipe is connected to the top side of the second liquid inlet pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) The device can improve the sealing performance of the connection between the diaphragm and the anode chamber and the cathode chamber. At the same time, it can also detect leakage in a timely manner, improve the safety of using the device, and avoid explosion and damage of the anode chamber and the cathode chamber.

[0018] (2) By arranging a first isolation component, a second isolation component and a third isolation component between the anode chamber and the cathode chamber, a cavity is formed between the diaphragms of the first isolation component, the second isolation component and the third isolation component. A gas detector and a flowmeter are arranged at the upper and lower ends of the cavity, which can detect the leaked gas and liquid at the first isolation component and the third isolation component, thereby playing a safety protection role for the device and improving the safety of use.

[0019] (3) By arranging the diaphragms of the first isolation component, the second isolation component and the third isolation component between the anode chamber and the cathode chamber, the anode chamber and the cathode chamber can be separated, playing a role of multiple isolation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a protection component of an electrolytic cell for sodium hydroxide processing according to the present utility model;

[0021] Figure 2 is a cross-sectional view of a protection component of an electrolytic cell for sodium hydroxide processing according to the present utility model;

[0022] Figure 3For a protection component of an electrolytic cell used in sodium hydroxide processing according to the present utility model Figure 2 Enlarged view at position A in

[0023] Figure 4 For a protection component of an electrolytic cell used in sodium hydroxide processing according to the present utility model Figure 2 Enlarged view at position B in

[0024] Figure 5 Side view of the connection between the frame and the diaphragm of a protection component of an electrolytic cell used in sodium hydroxide processing according to the present utility model

[0025] In the figure: 1. Electrolytic cell assembly; 11. Anode assembly; 1101. First liquid inlet pipe; 1102. First exhaust pipe; 1103. Anode; 1104. Anode chamber; 1105. First liquid discharge pipe; 12. Cathode assembly; 1201. Cathode; 1202. Second exhaust pipe; 1203. Second liquid inlet pipe; 1204. Cathode chamber; 1205. Second liquid discharge pipe; 13. First isolation assembly; 1301. Diaphragm; 1302. Sealing ring; 1303. Frame; 1304. Fixing bolt; 1305. Liquid discharge pipe; 1306. Flowmeter; 1307. First sealing valve; 1308. Second sealing valve; 1309. Gas detector; 1310. Third exhaust pipe; 14. Second isolation assembly; 15. Third isolation assembly; 2. Base Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0027] Please refer to Figures 1-5 , the present utility model provides a technical solution: a protection component of an electrolytic cell used in sodium hydroxide processing, including a base 2, and an electrolytic cell assembly 1 is arranged on the base 2

[0028] The electrolytic cell assembly 1 includes an anode assembly 11 and a cathode assembly 12

[0029] The anode assembly 11 includes an anode chamber 1104. A first liquid inlet pipe 1101 is connected to one side of the anode chamber 1104. A first liquid discharge pipe 1105 is arranged at the bottom of the anode chamber 1104. A first exhaust pipe 1102 is connected to the top side of the anode chamber 1104. The first liquid inlet pipe 1101 of this structure is used for injecting electrolyte; the first exhaust pipe 1102 is used for discharging the generated gas; an anode 1103 is arranged inside the anode chamber 1104

[0030] The cathode assembly 12 includes a cathode chamber 1204. A second liquid inlet pipe 1203 is connected to one side of the cathode chamber 1204, a second liquid discharge pipe 1205 is connected to the bottom of the cathode chamber 1204, and a second exhaust pipe 1202 is connected to the top side of the second liquid inlet pipe 1203. This structure is used to convey electrolyte through the second liquid inlet pipe 1203; the second exhaust pipe 1202 is used for discharging the generated gas. Grooves are formed on the inner walls of the cathode chamber 1204 and the anode chamber 1104, a frame 1303 is arranged inside the grooves, and a diaphragm 1301 is arranged inside the frame 1303. This structure can separate the cathode chamber 1204 from the anode chamber 1104 through the diaphragm 1301. A sealing ring 1302 is arranged on one side of the frame 1303, and fixing bolts 1304 are connected between the frame 1303 and the anode chamber 1104. The sealing ring 1302 is filled between the groove of the frame 1303 and the anode chamber 1104. This structure can ensure the sealing performance of the installation between the frame 1303 and the anode chamber 1104 through the sealing ring 1302. A cathode 1201 is arranged inside the cathode chamber 1204, and a first isolation assembly 13, a second isolation assembly 14, and a third isolation assembly 15 are arranged between the cathode chamber 1204 and the anode chamber 1104. The cathode chamber 1204 and the anode chamber 1104 are integrally connected.

[0031] The first isolation component 13 includes a diaphragm 1301 located inside the cathode chamber 1204 and the anode chamber 1104. The first isolation component 13 has the same structure as the second isolation component 14 and the third isolation component 15. A cavity is provided between the first isolation component 13 and the third isolation component 15 and the second isolation component 14. A third exhaust pipe 1310 and a drain pipe 1305 are respectively provided at the upper and lower ends of the cavity. A second sealing valve 1308 is provided on the third exhaust pipe 1310, and the second sealing valve 1308 is located at the top of the gas detector 1309. This structure can control the opening and closing of the third exhaust pipe 1310 through the second sealing valve 1308, and at the same time can concentrate the leaked gas. The leaked gas at the third exhaust pipe 1310 can be detected through the gas detector 1309, so that after detecting the leaked gas, it is convenient for the staff to repair and replace the diaphragm 1301 of the first isolation component 13 and the third isolation component 15 in time, avoiding the explosion phenomenon caused by the mixing of generated gases. A first sealing valve 1307 is provided on the drain pipe 1305, and the first sealing valve 1307 is located at the bottom of the flowmeter 1306. This structure can detect the leaked liquid collected inside the drain pipe 1305 through the flowmeter 1306, so that the staff can timely discover the leakage situation by detecting the liquid leakage. A gas detector 1309 and a flowmeter 1306 are respectively provided on the third exhaust pipe 1310 and the drain pipe 1305. By setting the first isolation component 13, the second isolation component 14 and the third isolation component 15, this device can play a role of multiple isolations. At the same time, cavities are formed between the first isolation component 13 and the second isolation component 14 and between the second isolation component 14 and the third isolation component 15 for timely detecting the leakage of liquid and gas, thereby avoiding the explosion phenomenon caused by the mixing of leaked gases and improving the safety of operating this device.

[0032] Working principle: When using the electrolytic cell protection component for sodium hydroxide processing, first, if there is a leakage between the anode chamber 1104 and the first isolation component 13, the leaked liquid and gas enter the cavity between the first isolation component 13 and the second isolation component 14. At this time, the liquid concentrates downward at the drain pipe 1305, and the flowmeter 1306 detects the liquid flow rate. The staff can timely discover the leakage situation through the display of the flowmeter 1306, while the gas flows upward and concentrates at the third exhaust pipe 1310. At this time, the gas detector 1309 detects the gas leakage, and the staff can timely discover the leakage situation. When there is a leakage between the cathode chamber 1204 and the third isolation component 15, the detection steps are the same as above, which is convenient for the staff to repair and maintain in time.

[0033] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective assembly for an electrolytic cell for processing sodium hydroxide, comprising a base (2), characterized in that: An electrolytic cell assembly (1) is arranged on the base (2); The electrolytic cell assembly (1) comprises an anode assembly (11) and a cathode assembly (12); The anode assembly (11) comprises an anode chamber (1104), wherein an anode (1103) is arranged inside the anode chamber (1104); The cathode assembly (12) comprises a cathode chamber (1204), a cathode (1201) is arranged inside the cathode chamber (1204), a first isolation assembly (13), a second isolation assembly (14) and a third isolation assembly (15) are arranged between the cathode chamber (1204) and the anode chamber (1104), and the cathode chamber (1204) and the anode chamber (1104) are connected in an integral manner; The first isolation component (13) includes a diaphragm (1301) located inside the cathode chamber (1204) and the anode chamber (1104). The first isolation component (13) has the same structure as the second isolation component (14) and the third isolation component (15). A cavity is provided between the first isolation component (13) and the third isolation component (15) and the second isolation component (14). An exhaust pipe (1310) and a drain pipe (1305) are provided at the upper and lower ends of the cavity, respectively. A gas detector (1309) and a flow meter (1306) are provided on the third exhaust pipe (1310) and the drain pipe (1305), respectively.

2. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 1, characterized in that: The inner walls of the cathode chamber (1204) and the anode chamber (1104) are provided with grooves, a frame (1303) is arranged inside the groove, and a diaphragm (1301) is arranged inside the frame (1303).

3. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 2, characterized in that: A sealing ring (1302) is provided on one side of the frame (1303), and fixing bolts (1304) are connected between the frame (1303) and the anode chamber (1104), and the sealing ring (1302) is filled between the grooves of the frame (1303) and the anode chamber (1104).

4. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 1, characterized in that: The liquid discharge pipe (1305) is provided with a first sealing valve (1307), and the first sealing valve (1307) is located at the bottom of the flow meter (1306).

5. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 1, characterized in that: The third exhaust pipe (1310) is provided with a second sealing valve (1308), and the second sealing valve (1308) is located on the top of the gas detector (1309).

6. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 1, characterized in that: A first liquid inlet pipe (1101) is connected to one side of the anode chamber (1104), a first liquid discharge pipe (1105) is arranged at the bottom of the anode chamber (1104), and a first exhaust pipe (1102) is connected to the top side of the anode chamber (1104).

7. The electrolytic cell protection assembly for sodium hydroxide processing according to claim 1, characterized in that: A second liquid inlet pipe (1203) is connected to one side of the cathode chamber (1204), a second liquid discharge pipe (1205) is connected to the bottom of the cathode chamber (1204), and a second exhaust pipe (1202) is connected to the top side of the second liquid inlet pipe (1203).

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