Isolation and pressure relief device for ion-exchange membrane caustic soda electrolyzer

Abstract

The utility model discloses an ion exchange membrane caustic soda electrolytic cell isolation pressure relief device relates to ion exchange membrane electrolysis technical field. Including the tank body, the tank body one side is provided with the filter mechanism, and the tank body top is provided with the isolation subassembly, the filter mechanism contains the mounting panel, and the mounting panel and tank body are connected between. The utility model discloses through the setting of isolation mechanism and filter mechanism, in the use process, first through mounting panel and mounting hole will fixed pipe and tank body connect, in the electrolytic process, the fluid in tank body enters fixed pipe, and flows into pressure relief pipe, and then pressure relief valve opens, and simultaneously motor drive rotating shaft rotates, drives the rotation of first gear and the rotation of first filter plate, removes the large particle impurity, and the device can effectively remove the impurity generated in the electrolytic process, prevents the impurity from entering the subsequent system, and protects the safe operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of ion membrane electrolysis technology, specifically to an isolation and pressure relief device for an ion membrane caustic soda electrolysis cell. Background Technology

[0002] For example, a pressure relief device for an ion-exchange membrane caustic soda electrolyzer, as disclosed in patent publication number CN213507227U, includes a tank body, a lead screw, and a baffle. A cover plate is positioned above the tank body, with the lead screw passing through the center of the cover plate. A handle is positioned above the lead screw, and the baffle is rotatably connected below the lead screw. An electrolyzer is positioned on one side of the lead screw, and a cathode rod is positioned below the electrolyzer. The cover plate is connected to the tank body by screws and also by a slot. The lead screw is threaded to the cover plate, and the handle is inserted into the lead screw. By incorporating the lead screw, handle, and baffle, the electrolyzer can be isolated in a timely manner, preventing the failure to isolate substances decomposed after ion-exchange membrane caustic soda electrolysis, which would otherwise result in low electrolysis efficiency and improve the quality of electrolysis in the ion-exchange membrane caustic soda electrolyzer.

[0003] However, during the use of the above-mentioned equipment, due to the internal filter screen, some solid impurities, such as undissolved salts, metal oxides, and colloidal substances, may be generated in the electrolyte during the electrolysis process. Filtering through a single filter screen may not be thorough, thus reducing work efficiency. Therefore, we propose a more convenient and practical isolation and pressure relief device to meet the usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide an isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer, comprising a tank body, a control panel installed on one side of the tank body, a filter mechanism provided on one side of the tank body, an isolation component provided on the top of the tank body, the filter mechanism comprising a mounting plate, the mounting plate being connected to the tank body, a plurality of equidistant mounting holes being opened through one side of the mounting plate, a fixing pipe being fixedly connected to one side of the mounting plate, a through hole being opened on one side of the bottom of the fixing pipe, a pressure relief pipe being fixedly connected inside the through hole, and a pressure relief valve being installed on the outer wall of the pressure relief pipe.

[0006] Furthermore, the isolation assembly includes a cover plate with a through hole on one side of the top of the cover plate. A lead screw is rotatably connected inside the through hole, and a third gear is threaded onto the outer wall of the lead screw. The third gear and the cover plate are rotatably connected.

[0007] Furthermore, a fourth gear is rotatably connected to one side of the top of the cover plate, and the teeth of the fourth gear mesh with those of the third gear. A baffle is rotatably connected to one end of the lead screw, and the baffle is slidably connected to the inner wall of the groove.

[0008] Furthermore, an electrolyzer is installed on one side of the top of the cover plate, and cathode rods and anode rods are installed on both sides of the bottom of the electrolyzer, respectively.

[0009] Furthermore, a connecting plate is fixedly connected to the inner wall of one side of the fixed tube, and a through hole is opened on one side of the connecting plate. A rotating shaft is rotatably connected in the through hole, a cross-shaped rotating frame is fixedly connected to the outer wall of the rotating shaft, and a first filter plate is fixedly connected to the outer wall of the rotating shaft.

[0010] Furthermore, a first gear is fixedly connected to the outer wall of the rotating shaft, and through holes are opened at the four corners of the rotating frame. A rotating rod is rotatably connected in the through holes, and a second gear is fixedly connected to one end of the rotating rod. The teeth of the second gear and the first gear mesh with each other, and a second filter plate is fixedly connected to the outer wall of the rotating rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This ion-exchange membrane caustic soda electrolyzer isolation and pressure relief device, through the setting of isolation and filtration mechanisms, first connects the fixed pipe and the tank body through the mounting plate and mounting holes. During electrolysis, the fluid in the tank enters the fixed pipe and flows into the pressure relief pipe. At this time, the pressure relief valve opens, and the motor drives the rotating shaft to rotate, which in turn drives the first gear to rotate and the first filter plate to rotate. In this process, the first gear drives the second gear to rotate, thereby rotating the rotating rod and the second filter plate. The fluid first undergoes preliminary filtration through the first filter plate to remove large particulate impurities, and then further filters small particulate impurities through the second filter plate. This device can effectively remove impurities generated during electrolysis, prevent impurities from entering the subsequent system, protect the safe operation of the equipment, and is highly practical and suitable for widespread application.

[0013] Meanwhile, the isolation components can isolate the tank at any time as needed, facilitating the inspection, maintenance, or handling of emergencies of the electrolytic cell. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the isolation mechanism of this utility model;

[0016] Figure 3 This is a cross-sectional view of the filter mechanism of this utility model;

[0017] Figure 4This is a schematic diagram of the filter assembly structure of this utility model.

[0018] In the diagram: 1. Tank; 2. Control panel; 3. Filtering mechanism; 301. Mounting plate; 302. Mounting hole; 303. Fixing pipe; 304. Pressure relief pipe; 305. Pressure relief valve; 306. Connecting plate; 307. Rotating shaft; 308. Rotating frame; 309. First gear; 310. Second gear; 311. First filter plate; 312. Rotating rod; 313. Second filter plate; 4. Cover plate; 5. Lead screw; 6. Third gear; 7. Fourth gear; 8. Baffle; 9. Electrolyzer; 10. Cathode rod; 11. Anode rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the ion-exchange membrane caustic soda process, pressure relief equipment is required. The pressure relief equipment provided by this utility model is specifically used for the isolation and pressure relief operation of the electrolytic cell in the ion-exchange membrane caustic soda process. When using this equipment for pressure relief operations, it is necessary to ensure that the installation location meets the equipment operation requirements, and the surrounding environment should be dry, ventilated, and free of strong corrosive substances to avoid affecting the service life and performance of the equipment. When setting parameters, it is necessary to strictly follow the process requirements for ion-exchange membrane caustic soda production, and key parameters such as pressure threshold and filtration time should not be changed arbitrarily.

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: an isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer, including a tank body 1, a control panel 2 installed on one side of the tank body 1, a filter mechanism 3 provided on one side of the tank body 1, an isolation component provided on the top of the tank body 1, the filter mechanism 3 including a mounting plate 301, the mounting plate 301 and the tank body 1 being connected, a plurality of equidistant mounting holes 302 being opened through one side of the mounting plate 301, a fixing pipe 303 being fixedly connected to one side of the mounting plate 301, a through hole being opened on one side of the bottom of the fixing pipe 303, a pressure relief pipe 304 being fixedly connected in the through hole, and a pressure relief valve 305 being installed on the outer wall of the pressure relief pipe 304.

[0022] like Figure 2As shown, the isolation assembly includes a cover plate 4. A through hole is opened on one side of the top of the cover plate 4. A lead screw 5 is rotatably connected in the through hole. A third gear 6 is threadedly connected to the outer wall of the lead screw 5. The third gear 6 is rotatably connected to the cover plate 4. A fourth gear 7 is rotatably connected to one side of the top of the cover plate 4. The teeth of the fourth gear 7 and the third gear 6 mesh with each other. A baffle 8 is rotatably connected to one end of the lead screw 5. The baffle 8 is slidably connected to the inner wall of the tank 1. An electrolyzer 9 is installed on one side of the top of the cover plate 4. A cathode rod 10 and an anode rod 11 are respectively installed on both sides of the bottom of the electrolyzer 9.

[0023] It should be noted that at the beginning of the electrolysis process, the cover plate 4 is tightly closed on the tank 1. Then, the control panel 2 is operated to power on the electrolyzer 9, and the cathode rod 10 and anode rod 11 start to work. At this time, the motor drives the fourth gear 7 to rotate, which in turn drives the third gear 6 to rotate. This causes the lead screw 5 to move the baffle 8 up and down on the inner wall of the tank 1, which can adjust the immersion depth of the baffle 8 in the electrolytic cell, thereby optimizing the electric field distribution and electrolysis efficiency. In case of emergency or when complete isolation is required, the baffle 8 can be lowered to the lowest position to completely block the space inside the tank. The isolation component can isolate the tank 1 at any time as needed, which facilitates the inspection, maintenance or handling of emergencies of the electrolytic cell.

[0024] like Figures 3-4 As shown, a connecting plate 306 is fixedly connected to the inner wall of one side of the fixed tube 303. A through hole is opened on one side of the connecting plate 306. A rotating shaft 307 is rotatably connected in the through hole. A cross-shaped rotating frame 308 is fixedly connected to the outer wall of the rotating shaft 307. A first filter plate 311 is fixedly connected to the outer wall of the rotating shaft 307. A first gear 309 is fixedly connected to the outer wall of the rotating shaft 307. Through holes are opened at the four corners of the rotating frame 308. A rotating rod 312 is rotatably connected in the through hole. A second gear 310 is fixedly connected to one end of the rotating rod 312. The teeth of the second gear 310 and the first gear 309 mesh with each other. A second filter plate 313 is fixedly connected to the outer wall of the rotating rod 312.

[0025] It should be noted that during use, the fixed pipe 303 and the tank 1 are first connected through the mounting plate 301 and mounting hole 302. During electrolysis, the fluid in the tank 1 enters the fixed pipe 303 and flows into the pressure relief pipe 304. At this time, the pressure relief valve 305 opens, and the motor drives the rotating shaft 307 to rotate, which in turn drives the first gear 309 to rotate and the first filter plate 311 to rotate. In this process, the first gear 309 drives the second gear 310 to rotate, thereby causing the rotating rod 312 and the second filter plate 313 to rotate. The fluid first undergoes preliminary filtration through the first filter plate 311 to remove large particulate impurities, and then further filters small particulate impurities through the second filter plate 313. The opening pressure and flow rate can be adjusted according to actual needs, which has high reliability and controllability.

[0026] At the start of the electrolysis process, the cover plate 4 is sealed on the tank 1. Then, the control panel 2 is operated to power on the electrolyzer 9, and the cathode rod 10 and anode rod 11 begin to work. At this time, the motor drives the fourth gear 7 to rotate, causing the lead screw 5 to drive the baffle 8 to slide up and down on the inner wall of the tank 1, lowering the baffle 8 to the lowest position and completely blocking the space inside the tank. When pressure relief is required, the fluid in the tank 1 enters the fixed pipe 303 and flows into the pressure relief pipe 304. At this time, the pressure relief valve 305 opens, and the motor drives the rotating shaft 307 to rotate, driving the first gear 309 to rotate and simultaneously driving the first filter plate 311 to rotate. During this process, the first gear 309 drives the second gear 310 to rotate, thereby causing the rotating rod 312 and the second filter plate 313 to rotate. The fluid first undergoes preliminary filtration through the first filter plate 311 to remove large particulate impurities, and then further filters small particulate impurities through the second filter plate 313. This device can effectively remove impurities generated during the electrolysis process, prevent impurities from entering the subsequent system, and protect the safe operation of the equipment.

[0027] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A pressure relief device for an ion-exchange membrane caustic soda electrolyzer, comprising a tank body (1), wherein a control panel (2) is installed on one side of the tank body (1), characterized in that: A filter mechanism (3) is provided on one side of the tank (1), and an isolation component is provided on the top of the tank (1). The filter mechanism (3) includes a mounting plate (301), which is connected to the tank (1). A plurality of equally spaced mounting holes (302) are provided through one side of the mounting plate (301). A fixing pipe (303) is fixedly connected to one side of the mounting plate (301). A through hole is provided on one side of the bottom of the fixing pipe (303), and a pressure relief pipe (304) is fixedly connected inside the through hole. A pressure relief valve (305) is installed on the outer wall of the pressure relief pipe (304).

2. The isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer according to claim 1, characterized in that: The isolation assembly includes a cover plate (4), a through hole is provided on one side of the top of the cover plate (4), a lead screw (5) is rotatably connected in the through hole, a third gear (6) is threadedly connected to the outer wall of the lead screw (5), and the third gear (6) and the cover plate (4) are rotatably connected.

3. The isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer according to claim 2, characterized in that: The top side of the cover plate (4) is rotatably connected to a fourth gear (7), and the teeth of the fourth gear (7) and the third gear (6) mesh with each other. One end of the screw (5) is rotatably connected to a baffle (8), and the baffle (8) is slidably connected to the inner wall of the groove (1).

4. The isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer according to claim 2, characterized in that: An electrolyzer (9) is installed on one side of the top of the cover plate (4), and a cathode rod (10) and an anode rod (11) are installed on both sides of the bottom of the electrolyzer (9).

5. The isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer according to claim 1, characterized in that: A connecting plate (306) is fixedly connected to the inner wall of one side of the fixed tube (303). A through hole is opened on one side of the connecting plate (306). A rotating shaft (307) is rotatably connected in the through hole. A cross-shaped rotating frame (308) is fixedly connected to the outer wall of the rotating shaft (307). A first filter plate (311) is fixedly connected to the outer wall of the rotating shaft (307).

6. The isolation and pressure relief device for an ion-exchange membrane caustic soda electrolyzer according to claim 5, characterized in that: The outer wall of the rotating shaft (307) is fixedly connected to a first gear (309). The four corners of the rotating frame (308) are provided with through holes. A rotating rod (312) is rotatably connected in the through holes. A second gear (310) is fixedly connected to one end of the rotating rod (312). The teeth of the second gear (310) and the first gear (309) mesh with each other. A second filter plate (313) is fixedly connected to the outer wall of the rotating rod (312).

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