Self-cleaning gate valve applied to coal chemical industry

Abstract

The utility model relates to the technical field of coal chemical industry, in particular to a self-cleaning gate valve applied to coal chemical industry, which comprises a valve body, a liquid inlet is arranged on the left side of the valve body, a liquid outlet is arranged on the right side of the valve body, and a valve for sealing the inside of the valve body is arranged at the center of the inner wall of the valve body. A self-cleaning mechanism is arranged on the inner wall of the valve body and located at the end, close to the liquid inlet, of the valve, and the self-cleaning mechanism comprises a cleaning component and a slag discharging component. The flushing water and impurities can be discharged from the interior of the valve body through the liquid injection port, the arranged cleaning ring conveys the liquid through the formed through groove, in this way, the structure for cleaning the interior of the valve body can be simplified, and the influence on the flow speed of the liquid conveyed by the valve body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal chemical industry, and particularly relates to a self-cleaning gate valve applied to coal chemical industry. Background Art

[0002] In the process of coal chemical processing, gate valves are required. The existing gate valves do not have the function of automatic cleaning. During the process of using the gate valve to transport liquids, the liquid contains a large amount of slag and solid particles. After long-term use, a large amount of scale will accumulate inside the gate valve. Excessive scale will cause the gate valve to fail to open and close normally. Based on this, a self-cleaning gate valve applied to coal chemical industry is disclosed in Chinese Patent Publication No. CN215656541U. This patented technology solves the problem that the existing gate valves do not have the function of automatic cleaning through a gate valve body, a protective shell, a motor, an L-shaped box, a transmission rod, a first helical gear, a second helical gear, a rotating rod, a connecting block, a connecting rod, a long scraping plate, a vertical scraping plate, a limiting bearing, a fixed bearing, a fixed rod, and a support rod.

[0003] However, it can be seen from the specification and the accompanying drawings of the above patented technology that a cleaning mechanism is provided inside the valve body to perform self-cleaning on the inside of the valve. However, it requires a relatively large amount of space inside the valve body during installation, so it may affect the liquid transportation of the valve. At the same time, the liquid will also scour the cleaning mechanism when the valve transports the liquid. Therefore, the long-term scouring of the cleaning mechanism caused by the long-term transportation of the liquid may affect the structural strength of the cleaning mechanism. Therefore, there are certain deficiencies in the above patented technology during specific use.

[0004] In summary, it is very necessary to invent a self-cleaning gate valve applied to coal chemical industry. Content of the Utility Model

[0005] For this reason, the utility model provides a self-cleaning gate valve applied to coal chemical industry to solve the problem that it requires a relatively large amount of space inside the valve body during installation, so it may affect the liquid transportation of the valve.

[0006] To achieve the above object, the utility model provides the following technical solution: A self-cleaning gate valve applied to coal chemical industry, including a valve body. An inlet is provided on the left side of the valve body, and an outlet is provided on the right side of the valve body. A valve for closing the inside of the valve body is provided at the center of the inner wall of the valve body. A self-cleaning mechanism is provided on the inner wall of the valve body and at one end of the valve close to the inlet.

[0007] The self-cleaning mechanism includes a cleaning component and a slag discharging component. The cleaning component is installed on the side of the valve close to the valve body, and the slag discharging component is installed at the bottom end of the inner wall of the valve body and on the side of the cleaning component close to the valve.

[0008] Preferably, the upper and lower ends of the valve are rotatably connected to the center of the inner wall of the valve body through a rotating shaft, and a valve plate control member for controlling the rotation of the valve is fixed at the top of the outer wall of the valve body at a position corresponding to the valve.

[0009] Preferably, the cleaning component includes a cleaning ring, the cleaning ring is fixed on one side of the inner wall of the valve body, a through groove is opened at the center of the outer wall of the cleaning ring, and drainage blocks are arranged on both sides of the through groove near the liquid inlet, and the drainage blocks are fixed to the side end of the inner wall of the valve body.

[0010] Preferably, a storage groove is opened on the inner wall of the cleaning ring and outside the outer wall of the through groove, and spray heads are fixedly communicated with both sides of the storage groove near the valve, and the spray heads are all arranged towards the side end of the inner wall of the valve body.

[0011] Preferably, a liquid injection port is communicated above the storage groove at the top of the outer wall of the cleaning ring, the bottom end of the liquid injection port is communicated with the top end of the inner wall of the storage groove, and the upper end of the liquid injection port extends outside the top of the outer wall of the valve body.

[0012] Preferably, a sealing ring is arranged on the side end of the outer wall of the cleaning ring and near the valve, a circular sliding ring is fixed on the side of the outer wall of the sealing ring close to the cleaning ring, an annular sliding groove is opened on the outer side of the cleaning ring at a position corresponding to the circular sliding ring, and the circular sliding ring is slidably connected with the annular sliding groove.

[0013] Preferably, through holes are opened on both sides of the outer wall of the sealing ring at positions corresponding to the spray heads, the through holes are opened inside the circular sliding ring, external toothed rings are fixed on both side ends of the outer wall of the sealing ring, gears are meshed with the top ends of the outer walls of the external toothed rings, and a driving motor is installed on the top of the outer wall of the valve body and on one side of the sealing ring, and the output shaft of the driving motor is fixed to the side end of the gear.

[0014] Preferably, the slag discharging component includes a slag discharging port, the slag discharging port is opened at the bottom end of the inner wall of the valve body and on the side of the cleaning ring close to the valve, and a sealing plate for plugging is arranged on the inner wall of the slag discharging port.

[0015] Preferably, a temporary storage groove is opened at the bottom end of the inner wall of the valve body at a position corresponding to the sealing plate, the temporary storage groove is communicated with the slag discharging port, and the sealing plate is slidably connected with the inner wall of the temporary storage groove.

[0016] Preferably, an electric control telescopic rod is fixed on the bottom end of the outer wall of the valve body and on one side of the temporary storage groove, and the output ends of the electric control telescopic rods all pass through the top end of the inner wall of the temporary storage groove and are fixed to one side of the sealing plate close to the temporary storage groove.

[0017] The beneficial effects of the present utility model are:

[0018] In the present utility model, water is transported to the liquid injection port so that the liquid injection port can flush the inner wall of the valve body through a spray head, and the flushing water and impurities are discharged from the inside of the valve body through the liquid injection port. The provided cleaning ring transports the liquid through the opened through groove. It can be seen from the above method that the present utility model can simplify the structure for cleaning the inside of the valve body and avoid affecting the flow rate of the liquid transported through the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic cross-sectional structure view of the present utility model in the front view direction;

[0020] Figure 2 For the present utility model Figure 1 is an enlarged schematic structure view of part A in the present utility model;

[0021] Figure 3 For the present utility model Figure 1 is an enlarged schematic structure view of part B in the present utility model;

[0022] Figure 4 is a schematic cross-sectional structure view of the cleaning ring in the present utility model in the front view direction;

[0023] Figure 5 is an external structure view of the cleaning ring in the present utility model in the right side view direction;

[0024] Figure 6 is a three-dimensional structure view of the closing ring in the present utility model in the left side view direction.

[0025] In the figure: 100, valve body; 110, liquid inlet; 120, liquid outlet; 200, valve; 300, valve plate control member; 400, cleaning ring; 410, liquid injection port; 411, storage tank; 412, spray head; 420, closing ring; 421, external gear ring; 422, circular sliding ring; 423, through hole; 430, drive motor; 431, gear; 440, drainage block; 500, electric control telescopic rod; 510, slag discharge port; 520, temporary storage tank; 530, sealing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.

[0027] Refer to the attached Figures 1-6, a self-cleaning gate valve applied to coal chemical industry provided by the utility model includes a valve body 100. An inlet 110 is opened on the left side of the valve body 100, and a drain outlet 120 is opened on the right side of the valve body 100. A valve 200 for closing the inside of the valve body 100 is arranged at the center of the inner wall of the valve body 100. The arranged valve 200 is mainly used to open and close the liquid infusion of the valve body 100. The upper and lower ends of the valve 200 are rotationally connected to the center of the inner wall of the valve body 100 through a rotating shaft. A valve plate control member 300 for controlling the rotation of the valve 200 is fixed at the top of the outer wall of the valve body 100 and at a position corresponding to the valve 200. A self-cleaning mechanism is arranged on the inner wall of the valve body 100 and at one end of the valve 200 close to the inlet 110. The arranged valve plate control member 300 is used to drive the valve 200 to rotate, so as to be able to close or open the inside of the valve body 100. The arranged valve plate control member 300 can be controlled manually or electrically;

[0028] The self-cleaning mechanism includes a cleaning component and a slag discharging component. The cleaning component is installed on the side of the valve 200 close to the valve body 100. The cleaning component includes a cleaning ring 400. The cleaning ring 400 is fixed on one side of the inner wall of the valve body 100. A through groove is opened at the center of the outer wall of the cleaning ring 400. The opened through groove is to enable the liquid to pass through the cleaning ring 400 and prevent the cleaning ring 400 from blocking the liquid. Drainage blocks 440 are arranged on one side of the cleaning ring 400 close to the inlet 110 and at positions corresponding to the through groove. The drainage blocks 440 are fixed to the side end of the inner wall of the valve body 100. The arranged drainage blocks 440 are to enable the liquid to drain out of the through groove faster and also prevent the side wall of the cleaning ring 400 from blocking the liquid and residues. Storage grooves 411 are opened on the inner wall of the cleaning ring 400 and on the outer wall of the through groove. Spray heads 412 are fixedly communicated with the storage grooves 411 on one side close to the valve 200. The spray heads 412 are all arranged towards the side end of the inner wall of the valve body 100. A liquid injection port 410 is communicated with the top of the outer wall of the cleaning ring 400 and above the storage groove 411. The bottom end of the liquid injection port 410 is communicated with the top end of the inner wall of the storage groove 411. The upper end of the liquid injection port 410 extends to the outside of the top of the outer wall of the valve body 100. Specifically, a water supply pipe can be connected to the top end of the liquid injection port 410 by personnel, and the liquid injection port 410 can convey the water flow into the storage groove 411, and the liquid will be discharged through the spray heads 412, so as to be able to flush the inside of the valve body 100, and further be able to clean the inner wall of the valve body 100;

[0029] On the outer wall side end of the cleaning ring 400 and on the side close to the valve 200, a closing ring 420 is provided. The provided closing ring 420 is used to close the side end of the spray head 412 to prevent debris in the liquid from clogging the spray head 412. On the outer wall of the closing ring 420 and on the side close to the cleaning ring 400, a circular sliding ring 422 is fixed. At the position corresponding to the circular sliding ring 422 on the outside of the cleaning ring 400, an annular sliding groove is opened. The circular sliding ring 422 is slidably connected to the annular sliding groove. The fixed circular sliding ring 422 and the annular sliding groove are used to enable the closing ring 420 to rotate while being fixed to the side wall of the cleaning ring 400, so that the through hole 423 and the spray head 412 can be misaligned or aligned. When misaligned, the spray head 412 can be closed and protected. When aligned, the water flow discharged from the spray head 412 can flush and clean the inside of the valve body 100. Through holes 423 are opened at both sides of the outer wall of the closing ring 420 and at the positions corresponding to the spray head 412. The through holes 423 are opened inside the circular sliding ring 422. Outer tooth rings 421 are fixed to the outer wall side ends of the closing ring 420. At the top of the outer wall of the outer tooth ring 421, a gear 431 is engaged. At the position corresponding to the outer tooth ring 421 on the inner wall of the provided valve body 100, a concave groove for the rotation of the outer tooth ring 421 is opened to prevent the inner wall of the valve body 100 from hindering the rotation of the outer tooth ring 421. At the top of the outer wall of the valve body 100 and on the side of the closing ring 420, a driving motor 430 is installed. The output shaft of the driving motor 430 is fixed to the side end of the gear 431. At the position corresponding to the gear 431 on the top of the outer wall of the valve body 100, a strip-shaped through groove is opened. The provided driving motor 430 can be powered on to drive the gear 431 to rotate. When the gear 431 rotates, it can drive the closing ring 420 to rotate through the outer tooth ring 421, so that the through hole 423 and the spray head 412 are aligned or misaligned;

[0030] The slag discharging component is installed at the bottom end of the inner wall of the valve body 100 and is located on the side of the cleaning component close to the valve 200. The slag discharging component includes a slag discharging port 510, which is opened at the bottom end of the inner wall of the valve body 100 and is located on the side of the cleaning ring 400 close to the valve 200. A sealing plate 530 for plugging is arranged on the inner wall of the slag discharging port 510. The arranged sealing plate 530 can seal the slag discharging port 510 during the process of the valve body 100 transporting liquid, avoiding the leakage of the transported liquid. A temporary storage groove 520 is opened at the bottom end of the inner wall of the valve body 100 at the position corresponding to the sealing plate 530. The temporary storage groove 520 is communicated with the slag discharging port 510. The opened temporary storage groove 520 is used to temporarily store the sealing plate 530 when the slag discharging port 510 is opened. The sealing plate 530 is slidably connected with the inner wall of the temporary storage groove 520. An electric control telescopic rod 500 is fixed at the bottom end of the outer wall of the valve body 100 and on the side of the temporary storage groove 520. The output ends of the electric control telescopic rod 500 all pass through the top end of the inner wall of the temporary storage groove 520 and are fixed to the side of the sealing plate 530 close to the temporary storage groove 520. Through grooves are opened at the bottom end of the outer wall of the valve body 100 at the connection positions of the output ends of the arranged electric control telescopic rod 500. The through grooves are opened to avoid the outer wall bottom end of the valve body 100 from hindering the movement of the output ends of the electric control telescopic rod 500. The through grooves are communicated with the bottom end of the inner wall of the temporary storage groove 520.

[0031] The using process of the present utility model is as follows: When the valve body 100 needs to transport liquid, the personnel can drive the valve 200 to rotate through the valve plate control member 300, so that the inside of the valve body 100 is opened, and the liquid can enter the valve body 100 through the liquid inlet 110, and is discharged from the liquid outlet 120 after passing through the through groove opened in the cleaning ring 400. After the valve body 100 is used for a long time, some impurities will accumulate at the left end of the valve body 100, while the right end of the valve body 100 often discharges impurities due to maintaining liquid transportation and rarely accumulates;

[0032] Therefore, the personnel can rotate the valve 200 through the valve plate control member 300 to close the interior of the valve body 100. Then, the drive motor 430 is powered on to start rotating the gear 431, so that the gear 431 can drive the closing ring 420 to rotate through the external tooth ring 421, making the spray head 412 align with the through hole 423. Then, the water delivery pipe is connected to the liquid injection port 410, and then water is pumped through the liquid injection port 410 into the storage tank 411 by a water pump. The storage tank 411 will spray the liquid towards the inner wall of the valve body 100 through the spray head 412, so as to be able to wash the inner wall of the valve body 100. Subsequently, the personnel can power on the electric control telescopic rod 500 to control the contraction of its output end, so that the output end of the electric control telescopic rod 500 can pull the sealing plate 530 to contract towards the temporary storage groove 520, and the set slag discharge port 510 will be in an open state. Therefore, the flushing water and debris of the spray head 412 will be discharged through the slag discharge port 510, so as to be able to self-clean the interior of the valve body 100. After the cleaning is completed, the device can be reset, and the through hole 423 and the spray head 412 can be misaligned. Then, the valve 200 is opened so that the valve body 100 can convey the liquid. The personnel can also set a set of cleaning mechanisms on the right side of the valve 200 according to needs to clean the right side interior of the valve body 100.

[0033] The above are only the preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention falls within the scope of protection required by the present invention.

Claims

1. A self-cleaning gate valve used in coal chemical industry, comprising a valve body (100), a liquid inlet (110) being provided on the left side of the valve body (100), a liquid discharge port (120) being provided on the right side of the valve body (100), a valve (200) being provided at the center of the inner wall of the valve body (100) for sealing the inside of the valve body (100), characterized in that: A self-cleaning mechanism is provided on the inner wall of the valve body (100) and at one end of the valve (200) close to the liquid inlet (110); The self-cleaning mechanism comprises a cleaning component and a slag discharge component, wherein the cleaning component is mounted on a side of the valve (200) close to the valve body (100), and the slag discharge component is mounted on the bottom end of the inner wall of the valve body (100) and is located on the side of the cleaning component close to the valve (200).

2. A self-cleaning gate valve used in coal chemical industry according to claim 1, characterized in that: The upper and lower ends of the valve (200) are rotatably connected to the center of the inner wall of the valve body (100) via a rotating shaft, and a valve plate control component (300) for controlling the rotation of the valve (200) is fixed at the top end of the outer wall of the valve body (100) and at a position corresponding to the valve (200).

3. The self-cleaning gate valve used in coal chemical industry according to claim 1, characterized in that: The cleaning component comprises a cleaning ring (400), wherein the cleaning ring (400) is fixed to one side of the inner wall of the valve body (100), a through groove is provided at the center of the outer wall of the cleaning ring (400), and a drainage block (440) is provided on the side of the cleaning ring (400) close to the liquid inlet (110) and located in the through groove, and the drainage block (440) is fixed to the side end of the inner wall of the valve body (100).

4. A self-cleaning gate valve for coal chemical industry according to claim 3, characterized in that: A storage groove (411) is provided on the inner wall of the cleaning ring (400) and on the outer wall of the through groove. A nozzle (412) is fixedly connected to the side of the storage groove (411) close to the valve (200). The nozzle (412) is arranged toward the side end of the inner wall of the valve body (100).

5. A self-cleaning gate valve used in coal chemical industry according to claim 4, characterized in that: A liquid injection port (410) is provided at the top of the outer wall of the cleaning ring (400) and is located above the storage tank (411). The bottom end of the liquid injection port (410) is connected to the top of the inner wall of the storage tank (411). The upper end of the liquid injection port (410) extends to the outside of the top of the outer wall of the valve body (100).

6. The self-cleaning gate valve used in coal chemical industry according to claim 4, characterized in that: A closed ring (420) is provided at the side end of the outer wall of the cleaning ring (400) and close to the valve (200), a circular sliding ring (422) is fixed to the outer wall of the closed ring (420) and close to the cleaning ring (400), an annular sliding groove is provided on the outer side of the cleaning ring (400) and at a position corresponding to the circular sliding ring (422), and the circular sliding ring (422) is slidably connected to the annular sliding groove.

7. A self-cleaning gate valve used in coal chemical industry according to claim 6, characterized in that: Through holes (423) are provided on both sides of the outer wall of the closed ring (420) and at positions corresponding to the nozzle (412); the through holes (423) are provided on the inner side of the circular slip ring (422); an outer toothed ring (421) is fixed to the side end of the outer wall of the closed ring (420); a gear (431) is meshed at the top end of the outer wall of the outer toothed ring (421); a driving motor (430) is installed at the top end of the outer wall of the valve body (100) and located on one side of the closed ring (420); and an output shaft of the driving motor (430) is fixed to the side end of the gear (431).

8. The self-cleaning gate valve used in coal chemical industry according to claim 3, characterized in that: The slag discharge component comprises a slag discharge port (510), the slag discharge port (510) is opened at the bottom end of the inner wall of the valve body (100) and is located on the side of the cleaning ring (400) close to the valve (200), and the inner wall of the slag discharge port (510) is provided with a sealing plate (530) for blocking.

9. The self-cleaning gate valve used in coal chemical industry according to claim 8, characterized in that: A temporary placement groove (520) is provided at the bottom end of the inner wall of the valve body (100) and at a position corresponding to the sealing plate (530); the temporary placement groove (520) is communicated with the slag discharge port (510); and the sealing plate (530) is slidably connected to the inner wall of the temporary placement groove (520).

10. A self-cleaning gate valve used in coal chemical industry according to claim 9, characterized in that: An electrically controlled telescopic rod (500) is fixed at the bottom end of the outer wall of the valve body (100) and located on one side of the temporary placement groove (520), and the output end of the electrically controlled telescopic rod (500) passes through the top end of the inner wall of the temporary placement groove (520) and is fixed to a side of the sealing plate (530) close to the temporary placement groove (520).

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