Alkaline electrolytic cell end pole plate assembly

Abstract

The utility model discloses an alkaline electrolytic cell end pole plate assembly which comprises an end pole frame, a blocking plate and a monopole plate, an outer port of the end pole frame is sealed by the blocking plate, the monopole plate is welded and fixed in a pole plate containing groove to seal an inner port of the end pole frame, a reaction cavity is defined by the end pole frame, the blocking plate and the monopole plate, and a plurality of holes are formed in the bottom and the top of the end pole frame. Alkali liquor can be introduced into the reaction chamber through a bottom hole of the end pole frame, gas generated in the reaction chamber can be discharged through a top hole of the end pole frame, the end pole frame is formed by splicing an outer ring piece and an inner ring piece, and each hole in the end pole frame is also divided into two half grooves. The two half grooves corresponding to each hole are machined in the inner end face of the outer ring piece and the inner end face of the inner ring piece respectively, the blocking plate and the outer ring piece are integrally machined, the monopolar plate is welded to the inner ring piece, and the sealing ring is clamped between the outer ring piece and the inner ring piece. According to the structure of the end polar plate assembly of the alkaline electrolytic cell, the processing technology becomes simple, the processing cost can be reduced, and the manufacturing time can be shortened.

Description

Technical Field

[0001] The utility model relates to the field of alkaline electrolytic cells, in particular to an end plate assembly of an alkaline electrolytic cell. Background Art

[0002] The left and right ends of the alkaline electrolytic cell are provided with end plates, such as Figure 2 As shown, the structure of a conventional end pole plate includes: an end pole frame 1, a plugging plate 2, and a monopolar plate 3. The outer port of the end pole frame 1 is closed by the plugging plate 2, and a pole plate accommodating groove is provided on the inner port of the end pole frame 1. The monopolar plate 3 is welded and fixed in the pole plate accommodating groove to close the inner port of the end pole frame 1. A reaction chamber 10 is surrounded by the end pole frame 1, the plugging plate 2, and the monopolar plate 3. A plurality of holes 4 are provided at the bottom and the top of the end pole frame 1. Alkaline solution can be introduced into the reaction chamber 10 through the holes at the bottom of the end pole frame 1, and the gas generated in the reaction chamber can be discharged through the holes 4 at the top of the end pole frame 1.

[0003] The distance between the hole on the end plate and the plugging plate is very small, so that when machining the hole on the end plate, it will interfere with the plugging plate, making it impossible to machine the hole. Therefore, the end plate frame and the plugging plate are usually processed separately. After the hole on the end plate is processed, the plugging plate is sealed and welded to the outer port of the end plate. In order to ensure the sealing, the end plate frame and the plugging plate are beveled for welding. The welding requirements are high. After welding, PT flaw detection is performed. After passing the inspection, leveling and stress relief annealing treatment are required in sequence. Therefore, the structure of the existing end plate leads to its disadvantages such as complex processing technology, high processing cost, and long processing time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an alkaline electrolytic cell end plate assembly which can simplify its processing technology, reduce processing cost and manufacturing delivery time.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is: an alkaline electrolytic cell end plate assembly, including: an end pole frame, a plugging plate, and a single pole plate. The outer port of the end pole frame is closed by the plugging plate, and a pole plate receiving groove is arranged on the inner port of the end pole frame. The single pole plate is welded and fixed in the pole plate receiving groove to close the inner port of the end pole frame. A reaction chamber is surrounded by the end pole frame, the plugging plate, and the single pole plate. A plurality of holes are arranged at the bottom and the top of the end pole frame, and liquid can be introduced into the reaction chamber through the holes at the bottom of the end pole frame. Alkaline solution, the gas generated in the reaction chamber can be discharged through the hole on the top of the end pole frame, which is characterized in that: the end pole frame is assembled from an outer ring part and an inner ring part, and each hole on the end pole frame is also divided into two half grooves that can be assembled into a hole, and the two half grooves corresponding to each hole are respectively processed on the inner end surface of the outer ring part and the inner end surface of the inner ring part, the blocking plate is located on the outer ring part, and the blocking plate and the outer ring part are processed as one piece, the single pole plate is welded to the inner ring part, and a sealing ring is clamped between the two opposite inner end surfaces of the outer ring part and the inner ring part.

[0006] Furthermore, in the aforementioned alkaline electrolytic cell end plate assembly, a sealing water line is provided on the inner end surface of the outer ring, and a sealing water line is also provided on the inner end surface of the inner ring, the two sealing water lines are arranged opposite to each other inside and outside, and the sealing ring is sandwiched between the two sealing water lines.

[0007] Furthermore, in the aforementioned alkaline electrolytic cell end plate assembly, the outer ring, the inner ring, the blocking plate, and the monopolar plate are all nickel-plated.

[0008] Furthermore, in the aforementioned alkaline electrolytic cell end plate assembly, the monopolar plate is a nipple plate.

[0009] The advantages of the utility model are as follows: the alkaline electrolytic cell end plate assembly adopts a split structure, so that the processing of the half slots and the plugging plates corresponding to each hole will not interfere with each other, so that the plugging plate and the outer ring can be processed as one piece, thus eliminating the processing of the plugging plate, welding of the plugging plate, PT flaw detection of the weld, leveling, and stress relief annealing processes, thereby greatly simplifying the production process of the end plate, reducing the production cost by about 40%, and shortening the manufacturing delivery time by about 60%. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a schematic structural diagram of the end plate assembly of the alkaline electrolytic cell.

[0011] Figure 2 It is a schematic diagram of the structure of a conventional terminal plate. DETAILED DESCRIPTION

[0012] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.

[0013] like Figure 1As shown, the end plate assembly of the alkaline electrolytic cell includes: an end plate frame 1, a plugging plate 2, and a monopolar plate 3. In this embodiment, the monopolar plate 3 is a nipple plate; the outer port of the end plate frame 1 is closed by the plugging plate 2, and a plate accommodating groove is provided on the inner port of the end plate frame 1. The monopolar plate 3 is welded and fixed in the plate accommodating groove to close the inner port of the end plate frame 1. A reaction chamber 10 is surrounded by the end plate frame 1, the plugging plate 2, and the monopolar plate 3. A plurality of holes 4 are provided at the bottom and the top of the end plate frame 1, and alkaline solution can be introduced into the reaction chamber 10 through the holes 4 at the bottom of the end plate frame 1. The gas generated in the reaction chamber 10 can be discharged through the hole 4 on the top of the end pole frame 1. The end pole frame 1 is assembled from an outer ring member 5 and an inner ring member 6, and each hole 4 on the end pole frame 1 is also divided into two half grooves 7 that can be assembled into a hole. The two half grooves 7 corresponding to each hole 4 are respectively processed on the inner end surface of the outer ring member 5 and the inner end surface of the inner ring member 6. The plugging plate 2 is located on the outer ring member 5, and the plugging plate 2 and the outer ring member 5 are processed as one piece. The single pole plate 3 is welded to the inner ring member 6, and a sealing ring 8 is clamped between the two opposite inner end surfaces of the outer ring member 5 and the inner ring member 6.

[0014] In this embodiment, a sealing waterline 9 is provided on the inner end surface of the outer ring 5, and a sealing waterline 9 is also provided on the inner end surface of the inner ring 6. The two sealing waterlines 9 are arranged opposite to each other inside and outside, and the sealing ring 8 is sandwiched between the two sealing waterlines 9. The sealing waterline is composed of a plurality of annular small grooves arranged at intervals inside and outside, and the sealing waterline can enhance the sealing performance. In order to improve the corrosion resistance, the outer ring 5, the inner ring 6, the blocking plate 2, and the monopolar plate 3 are all nickel-plated.

[0015] The above-mentioned alkaline electrolytic cell end plate assembly is assembled together by tightening the lengthened bolts when the electrolytic cell is installed.

[0016] The above-mentioned alkaline electrolytic cell end plate assembly adopts a split structure, so that the processing of the half groove 7 and the plugging plate 2 corresponding to each hole 4 will not interfere with each other, so that the plugging plate 2 and the outer ring 5 can be processed as one piece, thereby eliminating the processing of the plugging plate, welding of the plugging plate, PT flaw detection of the weld, leveling, and stress relief annealing processes, thereby greatly simplifying the production process of the end plate, reducing the production cost by about 40%, and shortening the manufacturing delivery time by about 60%.

Claims

1. Alkaline electrolytic cell end plate assembly, comprising: An end pole frame, a plugging plate, and a single pole plate, wherein the outer port of the end pole frame is closed by the plugging plate, and a pole plate accommodating groove is arranged on the inner port of the end pole frame, and the single pole plate is welded and fixed in the pole plate accommodating groove to close the inner port of the end pole frame, and a reaction chamber is surrounded by the end pole frame, the plugging plate, and the single pole plate, and a plurality of holes are arranged at the bottom and the top of the end pole frame, and alkaline solution can be introduced into the reaction chamber through the holes at the bottom of the end pole frame, and the gas generated in the reaction chamber can be discharged through the holes at the top of the end pole frame, characterized in that: the end pole frame is assembled by an outer ring member and an inner ring member, and each hole on the end pole frame is also divided into two half grooves that can be assembled into a hole, and the two half grooves corresponding to each hole are respectively processed on the inner end surface of the outer ring member and the inner end surface of the inner ring member, the plugging plate is located on the outer ring member, and the plugging plate and the outer ring member are processed as one body, the single pole plate is welded to the inner ring member, and a sealing ring is clamped between the two opposite inner end surfaces of the outer ring member and the inner ring member.

2. The alkaline electrolytic cell end plate assembly according to claim 1, characterized in that: A sealing waterline is arranged on the inner end surface of the outer ring, and a sealing waterline is also arranged on the inner end surface of the inner ring. The two sealing waterlines are arranged opposite to each other inside and outside, and the sealing ring is sandwiched between the two sealing waterlines.

3. The alkaline electrolytic cell end plate assembly according to claim 1 or 2, characterized in that: The outer ring, inner ring, plugging plate and monopolar plate are all nickel-plated.

4. The alkaline electrolytic cell end plate assembly according to claim 1 or 2, characterized in that: The monopolar plate is a convex plate.

Images