Gate valve with corrosion resistance

Abstract

The utility model relates to the technical field of gate valves, and discloses a corrosion-resistant gate valve which comprises a valve body, a water outlet is formed in the lower portion of the rear end face of the valve body, a filtering structure is arranged in the lower portion of the center of the front end face of the valve body, and a water inlet is formed in the front end of the filtering structure. The filtering structure comprises a shell, two frames, two shells, two activated carbon filter screens and two ion exchange resin filter screens, the shell is fixedly connected to the front end face of the valve body and fixedly connected to the output end of the water inlet, the two frames are arranged in the shell and on one side of the shell respectively, and the two shells are fixedly connected to the water inlet. The two frames are fixedly connected, the two ion exchange resin filter screens are respectively arranged at the rear parts in the two frames, and the two activated carbon filter screens are respectively arranged at the centers in the two frames. According to the utility model, the activated carbon filter screen and the ion exchange resin filter screen are used for filtering in sequence, so that corrosive substances entering the valve body are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve with corrosion resistance. Background Art

[0002] Gate valve is a common valve type, mainly used to control the flow of fluid in the pipeline. It opens or closes through a flat plate perpendicular to the flow direction, thereby controlling the passage of the fluid. Corrosion-resistant gate valve is a valve designed for use in corrosive environments. This valve is commonly used in chemical, petroleum, pharmaceutical, food processing, sewage treatment and other industries, where the fluid may contain corrosive chemicals. The design and material selection of corrosion-resistant gate valves must be able to resist the erosion of these chemicals to ensure the long-term reliable operation of the valve.

[0003] There are still some problems in the use of existing corrosion-resistant gate valves. The corrosion resistance of existing corrosion-resistant gate valves only relies on adding an anti-corrosion coating on the surface of the gate valve. The fluid passing through contains corrosive substances and flows through the interior of the gate valve for a long time, which is also likely to cause corrosion to the gate valve. Therefore, those skilled in the art provide a corrosion-resistant gate valve to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a corrosion-resistant gate valve. When in use, water enters the shell through the water inlet and is filtered in sequence through the activated carbon filter and the ion exchange resin filter. The activated carbon can effectively adsorb organic matter, chloride and other soluble impurities in the water, reducing the corrosiveness of the water. The ion exchange resin can remove hardness ions such as calcium and magnesium in the water, thereby reducing the corrosiveness of the water, reducing the corrosive substances in the water entering the valve body, and improving the service life of the valve body.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a corrosion-resistant gate valve, comprising a valve body, a water outlet being provided at the lower portion of the rear end face of the valve body, a filter structure being provided at the lower center portion of the front end face of the valve body, and a water inlet being provided at the front end of the filter structure;

[0006] The filtering structure includes a shell, two frames, two shells, two activated carbon filters and two ion exchange resin filters. The shell is fixedly connected to the front end surface of the valve body, and the shell is fixedly connected to the water inlet output end. The two frames are respectively arranged inside the shell and on one side of the shell, and the two frames are fixedly connected. The two ion exchange resin filters are respectively arranged at the rear of the two frames, and the two activated carbon filters are respectively arranged at the center of the two frames.

[0007] Through the above technical solution, the activated carbon filter and the ion exchange resin filter are filtered in sequence. The activated carbon can effectively adsorb organic matter, chlorides and other soluble impurities in the water, reducing the corrosiveness of the water. The ion exchange resin can remove hardness ions such as calcium and magnesium in the water, thereby reducing the corrosiveness of the water, reducing the corrosive substances in the water entering the valve body, and improving the service life of the valve body.

[0008] Furthermore, a slide rail is provided at the center of the upper end surface of the housing, a servo motor is fixedly connected to the center of an inner side wall of the slide rail, a screw rod is fixedly connected to the output end of the servo motor, a slider is threadedly sleeved on the outer side of the screw rod, the slider is slidably connected to the inside of the slide rail, and the lower end surfaces of the slider are respectively fixedly connected to the upper end surfaces of the two frames;

[0009] Through the above technical solution, by controlling the servo motor to start, the servo motor drives the lead screw to rotate, thereby causing the slider to move along the slide rail, thereby driving the two frames to move.

[0010] Furthermore, the two frames are each provided with a second groove on both the front and rear end surfaces and the upper and lower end surfaces, four second magnets are each provided inside the four second grooves, and second sealing gaskets are provided inside the four second grooves outside the sixteen second magnets. The inner sidewall of the shell is provided with a first groove on both sides, four first magnets are each provided inside the two first grooves, and first sealing gaskets are provided inside the first grooves inside the eight first magnets.

[0011] Through the above technical solution, after the frame is moved to the inside of the shell, the eight first magnets and the eight second magnets are magnetically attracted to each other, so that the first sealing gasket and the second sealing gasket fit more tightly, filling the gap between the shell and the frame, and improving the sealing.

[0012] Furthermore, the front inner walls of the two shells are each provided with four third grooves in a rectangular arrangement, and the four third grooves are each provided with a third magnet. The front inner wall of the frame is provided with four fourth grooves in a rectangular arrangement near the edge, and the four fourth grooves are each provided with a fourth magnet.

[0013] With the above technical solution, the shell is adsorbed on the inner side of the frame by the mutual magnetic adsorption between the third magnet and the fourth magnet, which prevents it from falling and also facilitates disassembly and assembly.

[0014] Furthermore, an insert plate is provided at the front of the upper end surface of the shell, the lower end of the insert plate passes through the upper end surface of the shell and reaches the lower inner wall of the shell, and a limiting bolt is provided at the upper front end of a side wall of the shell, the limiting bolt passes through the side wall of the shell and reaches the interior of the shell, and the end portion is attached to the side wall of the insert plate;

[0015] Through the above technical solution, the plug-in plate is inserted into the shell to block the pipeline, and then the two frames are adjusted. After the adjustment is completed, the plug-in plate is pulled upward, and then the limit bolt is used to limit the plug-in plate to prevent water from leaking from the path where the plug-in plate moves.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, when the corrosion-resistant gate valve is used, water enters the shell through the water inlet and is filtered in sequence through the activated carbon filter and the ion exchange resin filter. The activated carbon can effectively adsorb organic matter, chloride and other soluble impurities in the water, reducing the corrosiveness of the water. The ion exchange resin can remove hardness ions such as calcium and magnesium in the water, thereby reducing the corrosiveness of the water, reducing the corrosive substances in the water entering the valve body, and improving the service life of the valve body.

[0018] 2. In the present invention, when a blockage occurs, the plug-in plate is inserted into the shell, and the servo motor is started, which drives the screw rod to rotate, thereby moving the slider along the slide rail, driving the two frames to one side, and moving the frame on one side to the inside of the shell to stop, and the plug-in plate is pulled upward to move the plug-in plate to the upper part of the inside, and fixed by the limit bolts. After the pipeline is connected, it is filtered through the activated carbon filter and the ion exchange resin filter inside the shell, and the shell on the other side is pulled out for easy cleaning.

[0019] 3. In the present invention, when the frame on one side moves into the interior of the housing, the eight first magnets and the eight second magnets are magnetically attracted to each other, thereby squeezing the two first sealing gaskets and the second sealing gaskets to fit together, thereby improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a corrosion-resistant gate valve proposed in the present utility model;

[0021] Figure 2 This is a three-dimensional cross-sectional view of a corrosion-resistant gate valve proposed by the utility model;

[0022] Figure 3 This is a side sectional view of a corrosion-resistant gate valve filter structure proposed by the utility model;

[0023] Figure 4 for Figure 2 A magnified schematic diagram of point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0025] Legend:

[0026] 1. Valve body; 2. Water outlet; 3. Filter structure; 301. Housing; 302. Slide rail; 303. Servo motor; 304. Screw rod; 305. Slider; 306. Frame; 307. Housing; 308. Activated carbon filter; 309. Ion exchange resin filter; 310. First groove; 311. First sealing gasket; 312. Second sealing gasket; 313. Second magnet; 314. Second groove; 315. First magnet; 316. Third magnet; 317. Fourth magnet; 318. Fourth groove; 319. Third groove; 320. Insert plate; 4. Water inlet. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1-5 The utility model provides an embodiment: a corrosion-resistant gate valve, including a valve body 1, a water outlet 2 is provided at the lower part of the rear end surface of the valve body 1, a filtering structure 3 is provided at the lower center of the front end surface of the valve body 1, and a water inlet 4 is provided at the front end of the filtering structure 3.

[0029] The filtering structure 3 includes an outer shell 301, two frames 306, two shells 307, two activated carbon filters 308 and two ion exchange resin filters 309. The outer shell 301 is fixedly connected to the front end surface of the valve body 1, and the outer shell 301 is fixedly connected to the output end of the water inlet 4. The two frames 306 are respectively arranged inside the outer shell 301 and on one side of the outer shell 301. The two frames 306 are fixedly connected. The two ion exchange resin filters 309 are respectively arranged at the rear of the two frames 306. The two activated carbon filters 308 are respectively arranged at the center of the two frames 306. The water is filtered in sequence through the activated carbon filter 308 and the ion exchange resin filter 309. The activated carbon can effectively adsorb organic matter, chloride and other soluble impurities in the water, reduce the corrosiveness of the water, and remove hardness ions such as calcium and magnesium in the water, thereby reducing the corrosiveness of the water, reducing the corrosive substances in the water entering the valve body, and improving the service life of the valve body 1.

[0030] A slide rail 302 is provided at the center of the upper end surface of the shell 301, and a servo motor 303 is fixedly connected to the center of the inner wall of the slide rail 302. A screw rod 304 is fixedly connected to the output end of the servo motor 303, and a slider 305 is threadedly sleeved on the outer side of the screw rod 304. The slider 305 is slidably connected to the inside of the slide rail 302, and the lower end surfaces of the slider 305 are respectively fixedly connected to the upper end surfaces of the two frames 306. By controlling the servo motor 303 to start, the servo motor 303 drives the screw rod 304 to rotate, so that the slider 305 moves along the slide rail 302, thereby driving the two frames 306 to move.

[0031] Second grooves 314 are provided on the front and rear end surfaces and the upper and lower end surfaces of the two frames 306, and four second magnets 313 are provided inside the four second grooves 314. Second sealing gaskets 312 are provided inside the four second grooves 314 outside the sixteen second magnets 313. First grooves 310 are provided on both sides of the inner wall of the shell 301, and four first magnets 315 are provided inside the two first grooves 310. First sealing gaskets 311 are provided inside the first grooves 310 inside the eight first magnets 315. After the frame 306 is moved to the inside of the shell 301, the eight first magnets 315 and the eight second magnets 313 are magnetically attracted to each other, so that the first sealing gaskets 311 and the second sealing gaskets 312 fit more tightly, filling the gap between the shell 301 and the frame 306 to improve the sealing performance.

[0032] The front inner walls of the two shells 307 are each provided with four third grooves 319 in a rectangular arrangement, and third magnets 316 are each provided inside the four third grooves 319. The front inner wall of the frame 306 is provided with four fourth grooves 318 in a rectangular arrangement near the edge, and fourth magnets 317 are each provided inside the four fourth grooves 318. The shell 307 is adsorbed to the inner side of the frame 306 through the mutual magnetic adsorption between the third magnets 316 and the fourth magnets 317, which prevents it from falling and facilitates disassembly and assembly.

[0033] A plug plate 320 is provided at the front of the upper end surface of the shell 301, and the lower end of the plug plate 320 passes through the upper end surface of the shell 301 and reaches the lower inner wall of the shell 301. A limiting bolt is provided at the upper front end of one side wall of the shell 301, which passes through one side wall of the shell 301 and reaches the interior of the shell 301, and the end is attached to the side wall of the plug plate 320. After the plug plate 320 is inserted into the interior of the shell 301, the pipeline is blocked, and then the two frames 306 are adjusted. After the adjustment is completed, the plug plate 320 is pulled upward, and then the limiting bolt is used to limit the plug plate 320 to prevent water from leaking from the path where the plug plate 302 moves.

[0034] Working principle: When in use, water enters the shell 307 through the water inlet 4, and is filtered in sequence through the activated carbon filter 308 and the ion exchange resin filter 309. The activated carbon can effectively absorb organic matter, chloride and other soluble impurities in the water, reducing the corrosiveness of the water. The ion exchange resin can remove hardness ions such as calcium and magnesium in the water, thereby reducing the corrosiveness of the water and reducing the corrosive substances in the water entering the valve body 1, thereby increasing the service life of the valve body 1. When blockage occurs, the plug 320 is inserted into the shell 1, and the servo motor 303 is started. The servo motor 303 drives the screw rod 304 to rotate, so that the slider 305 moves along the slide rail 30 2 moves, driving the two frames 306 to move to one side, and moving the frame 306 on one side to the inside of the shell 301 and stopping. When the frame 306 on one side moves to the inside of the shell 301, the eight first magnets 315 and the eight second magnets 313 are magnetically attracted to each other, thereby squeezing the two first sealing gaskets 311 and the second sealing gaskets 312 to fit each other, improving the sealing performance. The insert plate 320 is pulled upward to move the insert plate 302 to the upper part of the interior and fixed with the limit bolts. After the pipeline is connected, it passes through the activated carbon filter 308 and the ion exchange resin filter 309 inside the shell 301 for filtration, and the shell 307 on the other side is pulled out for easy cleaning.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gate valve with corrosion resistance, comprising a valve body (1), characterized in that: A water outlet (2) is provided at the lower portion of the rear end face of the valve body (1), a filtering structure (3) is provided at the lower center portion of the front end face of the valve body (1), and a water inlet (4) is provided at the front end of the filtering structure (3); The filtering structure (3) comprises an outer shell (301), two frames (306), two shells (307), two activated carbon filters (308) and two ion exchange resin filters (309); the outer shell (301) is fixedly connected to the front end surface of the valve body (1); the outer shell (301) is fixedly connected to the output end of the water inlet (4); the two frames (306) are respectively arranged inside the outer shell (301) and on one side of the outer shell (301); the two frames (306) are fixedly connected to each other; the two ion exchange resin filters (309) are respectively arranged at the rear of the two frames (306); and the two activated carbon filters (308) are respectively arranged at the center of the two frames (306).

2. The corrosion-resistant gate valve according to claim 1, characterized in that: A slide rail (302) is provided at the center of the upper end surface of the housing (301), a servo motor (303) is fixedly connected to the center of an inner side wall of the slide rail (302), a screw rod (304) is fixedly connected to the output end of the servo motor (303), a slider (305) is threadedly sleeved on the outer side of the screw rod (304), the slider (305) is slidably connected to the inside of the slide rail (302), and the lower end surface of the slider (305) is fixedly connected to the upper end surfaces of the two frames (306).

3. The corrosion-resistant gate valve according to claim 1, characterized in that: The front and rear end surfaces and the upper and lower end surfaces of the two frames (306) are each provided with a second groove (314), four second magnets (313) are each provided inside the four second grooves (314), and second sealing gaskets (312) are provided inside the four second grooves (314) outside the sixteen second magnets (313). The inner wall of the shell (301) is each provided with a first groove (310) on both sides, four first magnets (315) are each provided inside the two first grooves (310), and first sealing gaskets (311) are each provided inside the first grooves (310) inside the eight first magnets (315).

4. The corrosion-resistant gate valve according to claim 1, characterized in that: The front inner walls of the two shells (307) are each provided with four third grooves (319) in a rectangular arrangement, and the four third grooves (319) are each provided with a third magnet (316). The front inner wall of the frame (306) is each provided with four fourth grooves (318) in a rectangular arrangement near the edge, and the four fourth grooves (318) are each provided with a fourth magnet (317).

5. The corrosion-resistant gate valve according to claim 1, characterized in that: A plug plate (320) is provided at the front of the upper end surface of the housing (301), and the lower end of the plug plate (320) passes through the upper end surface of the housing (301) and reaches the lower inner wall of the housing (301). A limiting bolt is provided at the upper front end of a side wall of the housing (301), and the limiting bolt passes through the side wall of the housing (301) and reaches the interior of the housing (301), and the end portion is attached to the side wall of the plug plate (320).

Images