EDI (electrodeionization) membrane block for removing TOC (total organic carbon) in power plant

Abstract

The utility model belongs to the technical field of EDI impurity removal, and particularly discloses an EDI membrane block for removing TOC in a power plant, which comprises an EDI membrane block, the top of the EDI membrane block is fixedly connected with a connecting cylinder, the top of the connecting cylinder is fixedly connected with a guide cover, the outer surface of the connecting cylinder is provided with a limiting through hole, the inner side of the connecting cylinder is provided with a sliding chute, and the sliding chute is fixedly connected with the guide cover. A connecting rod is fixedly connected to the bottom of the EDI module, a connecting positioning mechanism is arranged on the outer surface of the connecting rod, the connecting positioning mechanism comprises a sealing disc fixedly connected to the bottom of the connecting rod, and a strip-shaped hole is formed in the outer surface of the sealing disc. According to the EDI membrane block for removing TOC in the power plant, the process of connecting the EDI membrane block array is relatively simple and rapid, only one EDI membrane block needs to be placed at the top of the adjacent membrane block, the multiple EDI membrane blocks are connected into the array through the cooperation of the gravity of the EDI membrane block and the connecting and positioning mechanism, a large electric ion removal unit is formed, and therefore the water treatment efficiency and the productivity of the whole system are improved.

Description

Technical Field

[0001] The present application relates to the technical field of EDI impurity removal, and in particular to an EDI membrane block for removing TOC in a power plant. Background Art

[0002] EDI (electrode deionization) is a process that uses electrochemistry and ion exchange technology to remove impurities from water. EDI is commonly used in water treatment processes in industrial fields such as power plants and semiconductor manufacturing, especially for removing total organic carbon (TOC) from water.

[0003] The EDI membrane block is a component of the EDI system. It is usually composed of a series of stacked cathode and anode membranes. Some EDI membrane blocks are used alone in the impurity removal process, and their water treatment capacity is relatively limited, while the other EDI membrane blocks are stably connected by fasteners such as flanges and bolts. This type of EDI membrane block arranged in an array has a stronger water treatment capacity, but its connection is complex and difficult to maintain. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings existing in the background technology and to propose an EDI membrane block for removing TOC in a power plant to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the utility model provides an EDI membrane block for removing TOC in a power plant, including an EDI membrane block, a connecting tube is fixedly connected to the top of the EDI membrane block, a guide cover is fixedly connected to the top of the connecting tube, a limiting perforation is provided on the outer surface of the connecting tube, a slide groove is provided on the inner side of the connecting tube, a connecting rod is fixedly connected to the bottom of the EDI membrane block, and a connecting positioning mechanism is provided on the outer surface of the connecting rod.

[0006] Preferably, the connection and positioning mechanism includes a sealing disk fixedly connected to the bottom of the connecting rod, the outer surface of the sealing disk is provided with a strip hole, and the strip hole is provided with an expansion water stop strip. Through the connection and positioning mechanism, several groups of EDI membrane blocks can be stably connected to form an EDI membrane block array.

[0007] Preferably, an inner rod is fixedly connected to the bottom of the sealing disk, a guide bar is fixedly connected to the outer surface of the inner rod, and the outer surface of the guide bar is slidably connected to the inner side of the slide groove.

[0008] Preferably, the inner surface of the inner rod is slidably connected to a sealed telescopic rod, and the outer surface of the sealed telescopic rod is slidably connected to the inner wall of the limiting perforation. The outer surface of the sealed telescopic rod is provided with a rubber layer, and the sealed telescopic rod and the limiting perforation are movably arranged, and the rubber layer can just block the limiting perforation.

[0009] Preferably, a movable sleeve on the outer surface of the sealed telescopic rod is provided with a spring, and a fixed sleeve on the outer surface of the sealed telescopic rod is provided with a retaining ring.

[0010] Preferably, the top of the retaining ring is fixedly connected with a shifting frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The EDI membrane block used for TOC removal in power plants has a relatively simple and quick process of connecting the EDI membrane block array. It only requires placing one EDI membrane block on top of the adjacent membrane block, and connecting multiple EDI membrane blocks into an array through their own gravity and the connection positioning mechanism to form a large-scale ion removal unit, thereby increasing the water treatment efficiency and production capacity of the entire system.

[0013] 2. For the EDI membrane block used for removing TOC in power plants, remove the expansion water stop strip in the strip hole, and move the linkage shifting frame inward. Drive the sealing telescopic rod to further extend into the inner rod through the retaining ring until the sealing telescopic rod no longer passes through the limit perforation. Then, the EDI membrane blocks in adjacent positions can be easily disassembled, and the EDI membrane blocks of individual units can be quickly inspected and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the surface structure of the connecting tube in this application;

[0016] Figure 3 This is a schematic diagram of the surface structure of the input rod in this application.

[0017] Among them: 1. EDI membrane block; 2. connecting tube; 3. guide cover; 4. limit perforation; 5. slide groove; 6. connecting rod; 7. sealing disk; 8. strip hole; 9. inner rod; 10. guide strip; 11. sealing telescopic rod; 12. spring; 13. retaining ring; 14. shifting frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] See also Figure 1-3An EDI membrane block for removing TOC in a power plant comprises an EDI membrane block 1, a connecting tube 2 is fixedly connected to the top of the EDI membrane block 1, a guide cover 3 is fixedly connected to the top of the connecting tube 2, a limiting through hole 4 is provided on the outer surface of the connecting tube 2, a slide groove 5 is provided on the inner side of the connecting tube 2, a connecting rod 6 is fixedly connected to the bottom of the EDI membrane block 1, and a connecting positioning mechanism is provided on the outer surface of the connecting rod 6.

[0020] Through the above technical solution, under the action of the gravity of the EDI membrane block 1 itself, the inner rod 9 can be stably inserted into the connecting tube 2 through the connection positioning mechanism, so that several groups of EDI membrane blocks 1 can be connected to form an EDI membrane block 1 array, achieving a wide range of water treatment capabilities, and the TOC treatment capacity is also stronger.

[0021] Specifically, the connection and positioning mechanism includes a sealing disk 7 fixedly connected to the bottom of the connecting rod 6. The outer surface of the sealing disk 7 is provided with a strip hole 8, and the strip hole 8 is provided with an expansion water stop strip.

[0022] Through the above technical solution, the expansion water stop strip can be stably placed in the strip hole 8 after absorbing water, thereby achieving the effect of sealing and water stopping, and it can also be manually taken out from the strip hole 8.

[0023] Specifically, an inner rod 9 is fixedly connected to the bottom of the sealing disk 7 , a guide bar 10 is fixedly connected to the outer surface of the inner rod 9 , and an outer surface of the guide bar 10 is slidably connected to the inner side of the slide groove 5 .

[0024] Through the above technical solution, the guide bar 10 can guide the inner rod 9 to move downward along a desired trajectory during the sliding process in the slide groove 5 .

[0025] Specifically, the inner surface of the inner rod 9 is slidably connected with the sealing telescopic rod 11, and the outer surface of the sealing telescopic rod 11 is slidably connected with the inner wall of the limiting through hole 4, and the outer surface of the sealing telescopic rod 11 is provided with a rubber layer.

[0026] Through the above technical solution, the rubber layer is wrapped around the outer surface of the sealing telescopic rod 11 , so as to cooperate with the sealing telescopic rod 11 to seal the limiting through hole 4 .

[0027] Specifically, a spring 12 is provided on the movable sleeve on the outer surface of the sealing telescopic rod 11 , and a retaining ring 13 is provided on the fixed sleeve on the outer surface of the sealing telescopic rod 11 .

[0028] Through the above technical solution, when the sealing telescopic rod 11 is extended and retracted inward and outward along the inner rod 9 , it will squeeze or pull the spring 12 through the retaining ring 13 .

[0029] Specifically, the top of the retaining ring 13 is fixedly connected with a shifting frame 14 .

[0030] Through the above technical solution, after the expansion water stop strip in the strip hole 8 is removed, the shifting frame 14 inside the strip hole 8 can be shifted to change the position of the sealing telescopic rod 11.

[0031] Working principle: When the EDI membrane block 1 removes total organic carbon (TOC) from water, several groups of EDI membrane blocks 1 can be connected to form an EDI membrane block 1 array to form a large-scale electro-ion removal unit. Each EDI membrane block 1 has a certain ion removal capacity. By combining into modules, the water treatment efficiency and production capacity of the entire system can be increased. When connecting each EDI membrane block 1, only one EDI membrane block 1 needs to be placed on the top of the adjacent membrane block. The EDI membrane block 1 at the top will gradually enter the inner entry rod 9 into the connecting tube 2 under the action of its own gravity. During this process, the guide strip 10 on the surface of the inner entry rod 9 will slide down along the slide groove 5, so that the inner entry rod 9 moves down in the correct trajectory, and the sealing telescopic rod 11 will press against the inner side of the guide cover 3. As the sealing telescopic rod 11 moves downward, it will gradually penetrate into the inner entry rod 9, and the retaining ring 13 will squeeze the spring 12 to compress it. When the sealing telescopic rod 11 presses against the inner wall of the connecting tube 2 under the elastic action of the spring 12 to the limit When the position of the perforation 4 is reached, the sealing telescopic rod 11 will be further extended out of the inner rod 9 under the elastic reset action of the spring 12, so as to pass through the limiting perforation 4. The sealing telescopic rod 11 cooperates with the rubber layer on its surface to block the limiting perforation 4. At the same time, the sealing telescopic rod 11 stabilizes the inner rod 9, so that it is in a stable connection state in the connecting tube 2. At this point, the EDI membrane block 1 is successfully connected with another group of EDI membrane blocks 1 under its own gravity, and this is done until the connection forms a corresponding EDI membrane block 1 array. At this time, the expansion water stop strip located in the strip hole 8 can absorb water and expand to seal the strip hole 8. When the EDI membrane block 1 array needs to be disassembled and the individual unit needs to be inspected and maintained, it is only necessary to remove the expansion water stop strip in the strip hole 8 and move the linkage shifting frame 14 inward, and drive the sealing telescopic rod 11 to further extend into the inner rod 9 through the retaining ring 13 until the sealing telescopic rod 11 no longer passes through the limiting perforation 4, so that the EDI membrane block 1 in the adjacent position can be easily disassembled to achieve the purpose of rapid inspection and maintenance.

[0032] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An EDI membrane block for removing TOC in a power plant, comprising an EDI membrane block (1), characterized in that: The top of the EDI membrane block (1) is fixedly connected to a connecting tube (2), the top of the connecting tube (2) is fixedly connected to a guide cover (3), the outer surface of the connecting tube (2) is provided with a limiting through hole (4), the inner side of the connecting tube (2) is provided with a slide groove (5), the bottom of the EDI membrane block (1) is fixedly connected to a connecting rod (6), and the outer surface of the connecting rod (6) is provided with a connecting positioning mechanism.

2. The EDI membrane block for removing TOC in a power plant according to claim 1 is characterized in that: The connection and positioning mechanism comprises a sealing disk (7) fixedly connected to the bottom of the connecting rod (6), the outer surface of the sealing disk (7) is provided with a strip hole (8), and an expansion water stop strip is arranged in the strip hole (8).

3. The EDI membrane block for removing TOC in a power plant according to claim 2 is characterized in that: The bottom of the sealing disk (7) is fixedly connected to an inner rod (9), the outer surface of the inner rod (9) is fixedly connected to a guide bar (10), and the outer surface of the guide bar (10) is slidably connected to the inner side of the slide groove (5).

4. The EDI membrane block for removing TOC in a power plant according to claim 3 is characterized in that: The inner surface of the inner rod (9) is slidably connected to a sealing telescopic rod (11), and the outer surface of the sealing telescopic rod (11) is slidably connected to the inner wall of the limiting through hole (4), and the outer surface of the sealing telescopic rod (11) is provided with a rubber layer.

5. The EDI membrane block for removing TOC in a power plant according to claim 4, characterized in that: The movable sleeve on the outer surface of the sealing telescopic rod (11) is provided with a spring (12), and the fixed sleeve on the outer surface of the sealing telescopic rod (11) is provided with a retaining ring (13).

6. The EDI membrane block for removing TOC in a power plant according to claim 5, characterized in that: The top of the retaining ring (13) is fixedly connected to a shifting frame (14).

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