Gas inlet pipe for sodium hypochlorite production

Abstract

A kind of intake pipe for sodium hypochlorite production, including outer tube, inner tube, the head of the inner tube is fixedly installed with sealing ring, the sealing ring is sealed and embedded in outer tube, the outside of the inner tube is rotatably installed with oval extrusion ring, the outer tube is matched with oval extrusion ring buckling connection.The outer tube includes first pipe body, one end of the first pipe body is fixedly connected with sealing cover, one end of the sealing cover is symmetrically fixedly connected with elastic buckle.Make sealing ring further extrude outer tube, increase the sealing strength between outer tube, sealing ring, when disassembling, twist oval extrusion ring, make the longest diameter of oval extrusion ring two ends extrude and expand outer tube, make outer tube and oval extrusion ring decouple, when butting, directly insert inner tube, sealing ring into outer tube, make outer tube and oval extrusion ring buckle, facilitate disassembly and assembly pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of sodium chlorate production technology, and in particular relates to an air inlet pipe for sodium hypochlorite production. Background Technology

[0002] Sodium chlorate production uses sodium chloride (table salt) aqueous solution electrolysis as its core process. The overall process includes four main stages: raw material refining, electrolytic reaction, product separation, and recycling. First, the raw material sodium chloride is dissolved into crude brine. This brine is then refined through a brine refining system (adding a precipitant to remove calcium and magnesium ions, and filtering to remove suspended solids) to obtain refined brine of the required purity, preventing impurities from affecting electrolysis efficiency or clogging the electrodes. Subsequently, the refined brine enters a vertical diaphragm-free (or diaphragm) electrolytic cell. Under specific pH conditions of 60-80℃, the electrode reaction is driven by an external direct current—Cl is oxidized to Cl in the anode region, and H₂O is generated in the cathode region. The process involves reduction to generate OH and H, and further reaction of Cl and OH to generate ClO. ClO is then converted into the target product ClO through a disproportionation reaction. During electrolysis, the cell temperature needs to be maintained by a temperature control jacket, and the electrolyte needs to be kept uniform by a circulating pump. After electrolysis, a dilute sodium chlorate solution is obtained, which is concentrated to saturation by an evaporator crystallizer, and sodium chlorate crystals are separated by a centrifuge. The mother liquor after separation is replenished with sodium chloride and returned to the electrolysis system for recycling. Finally, the crystals are dried to obtain industrial-grade sodium chlorate product. The key to this process is controlling the current density, cell voltage, and reaction pH of the electrolytic cell to improve the sodium chlorate yield and reduce by-products.

[0003] The air inlet pipe used in sodium chlorate production is usually connected to the pipeline using conventional threaded sealing or direct plug-in methods. Threaded connections and plug-in connections require relatively high pressure to ensure sealing strength, which increases the resistance to tightening and plugging, making it difficult to disassemble and assemble the air inlet pipe used in conventional sodium chlorate production.

[0004] Therefore, we propose an air inlet pipe for sodium hypochlorite production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem of the difficulty in disassembling and assembling conventional sodium hypochlorite production air inlet pipes, and to propose an air inlet pipe for sodium hypochlorite production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An inlet pipe for sodium hypochlorite production includes an outer pipe and an inner pipe. A sealing ring is fixedly installed at the head of the inner pipe, and the sealing ring is embedded in the outer pipe. An elliptical compression ring is rotatably installed on the outside of the inner pipe, and the outer pipe is engaged with the elliptical compression ring. Air pressure is applied to the inside of the sealing ring, causing it to further compress the outer pipe outward, increasing the sealing strength between the outer pipe and the sealing ring. During disassembly, the elliptical compression ring is screwed on, causing the two ends of its longest diameter to compress and expand the outer pipe outward, disengaging the outer pipe from the elliptical compression ring. During assembly, the inner pipe and sealing ring are directly inserted into the outer pipe, causing the outer pipe to engage with the elliptical compression ring, facilitating pipe assembly and disassembly.

[0007] Preferably, the outer tube includes a first tube body, one end of which is fixedly connected to a sealing cover, and one end of the sealing cover is symmetrically fixedly connected to a spring buckle. The spring buckle engages with an elliptical compression ring, which acts on the inner tube to keep the outer and inner tubes aligned, facilitating the connection between the outer and inner tubes.

[0008] Preferably, the outer tube further includes a pinch ring, the outer periphery of which is provided with anti-slip texture. The pinch ring increases the friction between the hand and the outer tube, making it easier to manipulate the outer tube by hand.

[0009] Preferably, the inner tube includes a guide head, the head of which is fixedly connected to a docking ring, and the tail of which is fixedly connected to a second tube body, on which a retaining ring is fixedly connected. The retaining ring is used to restrict the elliptical extrusion ring and prevent it from falling off.

[0010] Preferably, the elliptical compression ring includes a retaining ring, which is matched with a spring-loaded buckle. The retaining ring is rotatably mounted on the second tube body. One end of the retaining ring is fixedly connected to an elliptical ring, and one end of the elliptical ring is fixedly connected to a rotating ring. The rotating ring is rotatably mounted on the second tube body. Twisting the rotating ring causes the elliptical ring and the retaining ring to rotate. The two sides of the shorter diameter of the elliptical ring provide a fastening space for the spring-loaded buckle. The two ends of the longer diameter of the elliptical ring push the spring-loaded buckle away, causing the spring-loaded buckle to disengage from the retaining ring. Twisting the rotating ring causes the elliptical ring to squeeze the spring-loaded buckle, making it easy to release the outer tube and the elliptical compression ring.

[0011] Preferably, the sealing ring includes a retaining ring, which is fixedly sealed to the mating ring. A sealing ring body is fixedly connected to the outside of the retaining ring, and the sealing ring body is in sealing contact with the sealing cover. When the air pressure increases, the air pressure acts on the sealing ring body, causing the sealing ring body to further act on the inner wall of the sealing cover, which facilitates adaptive air pressure to ensure sealing strength.

[0012] In summary, the technical effects and advantages of this utility model are as follows: 1. By applying air pressure to the inside of the sealing ring, the sealing ring is further squeezed outward to the outer tube, increasing the sealing strength between the outer tube and the sealing ring. When disassembling, the elliptical compression ring is turned to squeeze the outer tube outward from both ends of the longest diameter of the elliptical compression ring, causing the outer tube to disengage from the elliptical compression ring. When connecting, the inner tube and the sealing ring are directly inserted into the outer tube, so that the outer tube and the elliptical compression ring are engaged, which facilitates the disassembly and assembly of the pipeline.

[0013] 2. Use the spring-loaded snap-fit ​​elliptical compression ring. The elliptical compression ring acts on the inner tube to keep the outer and inner tubes aligned, making it easy to connect the outer and inner tubes.

[0014] 3. Twisting the rotating ring drives the elliptical ring and the buckle to rotate. The two sides of the short diameter of the elliptical ring provide the snap-fit ​​space for the snap-fit. The two ends of the long diameter of the elliptical ring push the snap-fit, causing the snap-fit ​​to disengage from the buckle. Twisting the rotating ring drives the elliptical ring to squeeze the snap-fit, making it easy to release the outer tube and the elliptical squeezing ring.

[0015] 4. When the air pressure increases, the air pressure acts on the sealing ring body, causing the sealing ring body to further act on the inner wall of the sealing cover, which facilitates adaptive air pressure to ensure sealing strength. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the segmentation structure of this utility model; Figure 2 This is a schematic diagram of the outer tube structure of this utility model; Figure 3 This is a schematic diagram of the inner tube structure of this utility model; Figure 4 This is a schematic diagram of the elliptical extrusion ring structure of this utility model; Figure 5 This is a schematic diagram of the sealing ring structure of this utility model.

[0017] In the diagram: 2. Outer tube; 3. Inner tube; 4. Elliptical compression ring; 5. Sealing ring; 21. Sealing cover; 22. Pinch ring; 23. Spring snap; 24. First tube body; 31. Guide head; 32. Retaining ring; 33. Second tube body; 34. Connecting ring; 41. Elliptical ring; 42. Buckle ring; 43. Rotary ring; 51. Sealing ring body; 52. Fixing ring. Detailed Implementation

[0018] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0019] like Figure 1As shown, an air inlet pipe for sodium hypochlorite production includes an outer pipe 2 and an inner pipe 3. A sealing ring 5 is fixedly installed at the head of the inner pipe 3, and the sealing ring 5 is embedded in the outer pipe 2. An elliptical compression ring 4 is rotatably installed on the outside of the inner pipe 3, and the outer pipe 2 is engaged with the elliptical compression ring 4. Air pressure is applied to the inside of the sealing ring 5, causing the sealing ring 5 to further compress the outer pipe 2 outward, increasing the sealing strength between the outer pipe 2 and the sealing ring 5. During disassembly, the elliptical compression ring 4 is screwed on, causing the two ends of the longest diameter of the elliptical compression ring 4 to compress and expand the outer pipe 2 outward, thus disengaging the outer pipe 2 from the elliptical compression ring 4. During connection, the inner pipe 3 and the sealing ring 5 are directly inserted into the outer pipe 2, causing the outer pipe 2 to engage with the elliptical compression ring 4.

[0020] like Figure 1 and 2 As shown, the outer tube 2 includes a first tube body 24, one end of which is fixedly connected to a sealing cover 21, and one end of the sealing cover 21 is symmetrically fixedly connected to a spring buckle 23. The spring buckle 23 is used to fasten the elliptical compression ring 4, and the elliptical compression ring 4 acts on the inner tube 3 to keep the outer tube 2 and the inner tube 3 connected.

[0021] like Figure 1 and 2 As shown, the outer tube 2 also includes a pinch ring 22, which has anti-slip textures on its outer circumference. The pinch ring 22 increases the friction between the hand and the outer tube 2.

[0022] like Figure 1 and 3 As shown, the inner tube 3 includes a guide head 31, with a docking ring 34 fixedly connected to the head of the guide head 31, and a second tube body 33 fixedly connected to the tail of the guide head 31. A retaining ring 32 is fixedly connected to the second tube body 33. The retaining ring 32 is used to restrict the elliptical extrusion ring 4 and prevent the elliptical extrusion ring 4 from falling off.

[0023] like Figure 1 , 2 As shown in Figures 3 and 4, the elliptical compression ring 4 includes a retaining ring 42, which is engaged with the spring buckle 23. The retaining ring 42 is rotatably mounted on the second tube body 33. One end of the retaining ring 42 is fixedly connected to an elliptical ring 41, and one end of the elliptical ring 41 is fixedly connected to a rotating ring 43, which is rotatably mounted on the second tube body 33. Twisting the rotating ring 43 causes the elliptical ring 41 and the retaining ring 42 to rotate. The two sides of the shorter diameter of the elliptical ring 41 provide engagement space for the spring buckle 23. The two ends of the longer diameter of the elliptical ring 41 push out the spring buckle 23, causing the spring buckle 23 to disengage from the retaining ring 42.

[0024] like Figure 1 , 2As shown in Figures 3 and 5, the sealing ring 5 includes a retaining ring 52, which is fixedly sealed to the mating ring 34. A sealing ring body 51 is fixedly connected to the outside of the retaining ring 52, and the sealing ring body 51 is in sealing contact with the sealing cover 21. When the air pressure increases, the air pressure acts on the sealing ring body 51, causing the sealing ring body 51 to further act on the inner wall of the sealing cover 21.

[0025] Working principle: Air pressure is applied to the inside of the sealing ring 5, causing the sealing ring 5 to further squeeze the outer tube 2 outward, increasing the sealing strength between the outer tube 2 and the sealing ring 5. During disassembly, the elliptical compression ring 4 is screwed on, causing the two ends of the longest diameter of the elliptical compression ring 4 to squeeze and expand the outer tube 2 outward, causing the outer tube 2 to disengage from the elliptical compression ring 4. During docking, the inner tube 3 and the sealing ring 5 are directly inserted into the outer tube 2, so that the outer tube 2 and the elliptical compression ring 4 are engaged.

[0026] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0027] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. An air inlet pipe for sodium hypochlorite production, characterized in that: It includes an outer tube (2) and an inner tube (3). A sealing ring (5) is fixedly installed at the head of the inner tube (3). The sealing ring (5) is embedded in the outer tube (2). An elliptical extrusion ring (4) is rotatably installed on the outside of the inner tube (3). The outer tube (2) and the elliptical extrusion ring (4) are fastened and matched.

2. The air inlet pipe for sodium hypochlorite production according to claim 1, characterized in that: The outer tube (2) includes a first tube body (24), one end of which is fixedly connected to a sealing cover (21), and one end of the sealing cover (21) is symmetrically fixedly connected to a spring buckle (23).

3. The air inlet pipe for sodium hypochlorite production according to claim 1, characterized in that: The outer tube (2) also includes a pinch ring (22), and the pinch ring (22) has anti-slip texture on its outer periphery.

4. The air inlet pipe for sodium hypochlorite production according to claim 2, characterized in that: The inner tube (3) includes a guide head (31), the head of the guide head (31) is fixedly connected to a docking ring (34), the tail of the guide head (31) is fixedly connected to a second tube body (33), and a retaining ring (32) is fixedly connected to the second tube body (33).

5. The inlet pipe for sodium hypochlorite production according to claim 4, characterized in that: The elliptical compression ring (4) includes a buckle (42), which is matched with a snap fastener (23). The buckle (42) is rotatably mounted on the second tube body (33). One end of the buckle (42) is fixedly connected to an elliptical ring (41), and one end of the elliptical ring (41) is fixedly connected to a rotating ring (43). The rotating ring (43) is rotatably mounted on the second tube body (33).

6. The inlet pipe for sodium hypochlorite production according to claim 4, characterized in that: The sealing ring (5) includes a fixing ring (52), which is fixedly sealed on the docking ring (34). A sealing ring body (51) is fixedly connected to the outside of the fixing ring (52), and the sealing ring body (51) is in sealing contact with the sealing cover (21).

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