A temperature and pressure reducing regulating valve

Abstract

The present invention discloses a temperature reduction and pressure reduction regulating valve, comprising a regulating valve body, a water inlet pipe is fixedly installed on the outer surface of one side of the regulating valve body, a connecting valve is fixedly installed on the outer surface of the water inlet pipe close to the regulating valve body, the water inlet pipe is fixedly installed with the regulating valve body through the connecting valve, a valve hole is opened on the outer surface of the water inlet pipe close to the connecting valve, a cleaning valve is movably installed inside the valve hole, a movable rod is movably installed inside the lower end of the cleaning valve, and a cleaning sheet is fixedly installed on the outer surface of the movable rod. The device can filter dirt in the pipeline to prevent dirt from entering the regulating valve and causing damage to the regulating valve, thereby improving the service life of the device, and at the same time, the filtered dirt can be cleaned and discharged without disassembling the device, and the cleaning method is simple, fast and efficient, thereby improving the use effect of the device.

Description

Technical Field

[0001] The invention relates to the technical field of regulating valves, and in particular to a temperature and pressure reducing regulating valve. Background Art

[0002] The temperature reduction and pressure reducing regulating valve is a pressure reducing and temperature reducing device that controls the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve to keep the pressure behind the valve within a certain range, and spray cooling water into the valve body or behind the valve to reduce the temperature.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art that have not been solved:

[0004] 1. After long-term use, the pipes connected to the regulating valve will be contaminated with rust, welding slag and other dirt. After these dirt enter the regulating valve, they will cause wear on the valve core and valve seat of the regulating valve, affecting the normal operation of the regulating valve. Traditional regulating valves do not have a structure to filter the dirt inside the pipe. They can only filter the water before it enters the pipe, but cannot filter the dirt inside the pipe.

[0005] 2. After filtering the dirt, it is necessary to discharge the filtered dirt in time to prevent the dirt from adhering to the filter net and clogging the holes of the filter net, thereby causing the pipeline to be blocked and the device to be unable to operate normally.

[0006] Therefore, a temperature and pressure reducing regulating valve is proposed. Summary of the invention

[0007] The object of the present invention is to provide a temperature and pressure reducing regulating valve, which can filter dirt in the pipeline to prevent the dirt from entering the regulating valve and causing damage to the regulating valve, thereby increasing the service life of the device. At the same time, the filtered dirt can be cleaned and discharged without the need to disassemble the device. The cleaning method is simple, fast and efficient, thereby improving the use effect of the device to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temperature reduction and pressure reduction regulating valve, comprising a regulating valve body, a water inlet pipe is fixedly installed on the outer surface of one side of the regulating valve body, a connecting valve is fixedly installed on the outer surface of the water inlet pipe close to the regulating valve body, the water inlet pipe is fixedly installed with the regulating valve body through the connecting valve, a valve hole is provided on the outer surface of the water inlet pipe close to the connecting valve, a cleaning valve is movably installed inside the valve hole, a movable rod is movably installed inside the lower end of the cleaning valve, a cleaning sheet is fixedly installed on the outer surface of the movable rod, a sewage outlet is provided below the valve hole, a sewage outlet is fixedly installed inside the sewage outlet, a filter screen is fixedly installed at a position close to the cleaning sheet inside the water inlet pipe, the filter screen is fitted with the cleaning sheet, an impeller is connected to the movable rod, the impeller can move and rotate with the water flow, a sliding groove is provided on the movable rod, a sliding block is arranged in the sliding groove, the sliding block is connected to a coil spring, and the coil spring is connected to the water inlet pipe at one end away from the sliding block.

[0009] In the temperature-reducing and pressure-reducing regulating valve described in this embodiment, the cleaning sheet is an elastic metal spring sheet, and there are two cleaning sheets, which are symmetrically distributed with the center of the movable rod as the midpoint.

[0010] By adopting the above technical solution, two symmetrically installed cleaning sheets can cover the entire filter screen with their movable range through deformation, so that the dirt filtered on the surface of the filter screen can be removed by scraping.

[0011] In the temperature-reducing and pressure-reducing regulating valve described in this embodiment, a receiving groove is provided at the position corresponding to the water inlet pipe and the two cleaning sheets, and one end of the two cleaning sheets extends into the interior of the receiving groove.

[0012] By adopting the above technical solution, when the cleaning sheet moves with the movable rod, the cleaning sheet in the storage groove extends outward, better cooperating with the movement of the movable rod to clean the filter screen, while maintaining the stability of the cleaning sheet.

[0013] The temperature and pressure reduction regulating valve described in this embodiment, wherein a sealing gasket is fixedly installed on the outer surface of the upper end of the sewage pipe, the sealing gasket is made of rubber, and the lower end of the movable rod is the same size as the inner part of the sewage pipe, and the movable rod is movably connected to the sewage pipe.

[0014] By adopting the above technical solution, when the cleaning valve is closed, the lower end of the movable rod is tightly fitted with the sewage pipe in cooperation with the rubber sealing gasket to prevent water leakage in the pipeline.

[0015] The temperature and pressure reduction regulating valve described in this embodiment has a T-shaped slot provided inside the lower end of the cleaning valve, the upper end of the movable rod is a T-shaped structure, and the movable rod and the T-shaped slot cooperate with each other.

[0016] By adopting the above technical solution, when the cleaning valve rotates, the movable rod remains stationary, and the cleaning sheet always fits with the filter screen while moving up and down with the cleaning valve.

[0017] The temperature-reducing and pressure-reducing regulating valve described in this embodiment has a fixing seat fixedly installed at the connection between the movable rod and the cleaning piece, and the movable rod is rotatably installed with the cleaning piece through the fixing seat.

[0018] By adopting the above technical solution, the cleaning sheet will not be separated from the movable rod when it is squeezed and deformed, and it is convenient to maintain, repair and replace the cleaning sheet in daily use.

[0019] In the temperature-reducing and pressure-reducing regulating valve described in this embodiment, the coil spring is connected to a fixing plate, and the fixing plate is connected to a pipeline.

[0020] In the temperature-reducing and pressure-reducing regulating valve described in this embodiment, the sliding groove is a wedge-shaped groove, and the sliding block is a wedge-shaped block that cooperates with the wedge-shaped groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By adding a series of device components such as a connecting valve, a water inlet pipe, a cleaning valve, a movable rod, and a filter to the device, when the device is in use, the inside of the water inlet pipe is impacted by the water flow for a long time, and the water pipe is corroded and oxidized by the water flow, resulting in rust. At the same time, the welding slag at the welding point of the pipeline will also be impacted by the water flow. The welding slag and rust and other dirt flow inside the water inlet pipe. When flowing through the filter, the filter intercepts the dirt, and the water without dirt enters the regulating valve through the filter and the connecting valve, thereby preventing rust, welding slag and other dirt from entering the regulating valve, causing wear on the valve core and valve seat of the regulating valve, affecting the normal operation of the regulating valve, and improving the service life of the device;

[0023] 2. By adding a series of device components such as valve holes, sewage outlets, cleaning valves, movable rods, sealing pads, filter screens, cleaning sheets, etc. to the device, when the device is in use and the filter screen needs to be cleaned and maintained, the cleaning valve is rotated to move upward, and at the same time, the cleaning valve drives the cleaning sheet upward to scrape and clean the surface of the filter screen, the cleaning sheet deforms upward, and the cleaning sheet inside the storage tank extends outward and moves upward driven by the movable rod to clean the upper part of the filter screen. At the same time, the movable rod is separated from the sewage pipe. Because the pressure at the sewage outlet is relatively small, it is cleaned The dirt scraped by the cleaning sheet is discharged from the sewage outlet and the sewage pipe through the water flow under the action of pressure, and then the cleaning valve is turned downward until the movable rod is tightly fitted with the sewage pipe. In this process, the cleaning sheet scrapes and cleans the entire outer surface of the filter screen downward, and the dirt is also discharged through the sewage outlet and the sewage pipe. Finally, the movable rod and the sewage pipe are tightly fitted under the action of the sealing gasket to maintain a sealed state. The device can clean the dirt attached to the surface of the filter screen in time without the need to disassemble the device. The cleaning method is simple, fast and efficient, which improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is the overall structural view of the present invention;

[0026] Figure 2 This is a combined view of the cleaning valve and the filter screen of the present invention;

[0027] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0028] Figure 4 It is a combined view of the cleaning valve and the movable rod of the present invention;

[0029] Figure 5 This is a combined view of the cleaning valve and the water inlet pipe of the present invention;

[0030] Figure 6 for Figure 2 Middle AA section view; DETAILED DESCRIPTION

[0031] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 6 , the present invention provides a technical solution:

[0033] A temperature and pressure reduction regulating valve comprises a regulating valve body 1, a water inlet pipe 2 is fixedly installed on the outer surface of one side of the regulating valve body 1, a connecting valve 3 is fixedly installed on the outer surface of the water inlet pipe 2 close to the regulating valve body 1, the water inlet pipe 2 is fixedly installed with the regulating valve body 1 through the connecting valve 3, a valve hole 21 is opened on the outer surface of the water inlet pipe 2 close to the connecting valve 3, a cleaning valve 4 is movably installed inside the valve hole 21, a movable rod 41 is movably installed inside the lower end of the cleaning valve 4, and a A sewage outlet 22 is provided below the cleaning piece 7 and the valve hole 21, a sewage outlet 22 is fixedly installed inside the sewage outlet 22, a filter screen 6 is fixedly installed inside the water inlet pipe 2 near the cleaning piece 7, the filter screen 6 is fitted with the cleaning piece 7, an impeller 12 is connected to the movable rod 41, the impeller 12 can move and rotate with the water flow, a sliding groove 411 is provided on the movable rod 41, a sliding block 13 is provided in the sliding groove 411, the sliding block 13 is connected to a coil spring 11, and the end of the coil spring 11 away from the sliding block 13 is connected to the water inlet pipe 2.

[0034] When the present invention is in use, the movement of the water flow will drive the impeller 12 to rotate, and the rotation of the impeller 12 will drive the movable rod 41 to rotate. During the rotation of the rotating rod, the movable rod 41 will be driven to move up and down, and then the cleaning sheet 7 will be driven to move up and down. The cleaning sheet 7 cleans the filter screen. After rising a certain distance, the movable rod will rotate in the opposite direction due to the presence of the coil spring 11, so that the cleaning sheet 7 moves up and down to clean the filter screen. The flow energy of the water flow is used to impact the rotation of the blades, so that the blades rotate and drive the cleaning blades 7 to move upward or downward to clean the filter screen 6. At the same time, the coil spring 11 stores energy. After rotating to a certain angle, the coil spring energy is released, the movable rod 41 moves in the opposite direction, and the cleaning blade 7 moves in the opposite direction to clean the filter screen.

[0035] It should be noted that the movement process of the movable rod 41 is as follows: when the water flow speed is constant, the water flow pushes the impeller 12 to rotate. At this time, the driving force of the water flow on the impeller is greater than the restoring force of the coil spring. The rotation speed of the movable rod 41 is getting faster and faster, and the more energy the coil spring has. After the coil spring is rolled to a certain extent, the restoring force of the coil spring is equal to the force of the water flow. At this time, the shaft continues to rotate due to inertia until the speed is zero, and the restoring force of the coil spring is further increased. At this time, since the restoring force of the coil spring is greater than the force of the water flow pushing the impeller, the movable rod 41 begins to accelerate. After rotating to a certain speed, the coil spring The restoring force is the same as the force of the water flow pushing the impeller. The movable rod 41 begins to decelerate, and after decelerating to zero, it begins to accelerate further, forming the above cycle to achieve the cleaning of the filter. It should be noted that when cleaning the filter, the water flow has a certain flow rate, and the cleaning blade 7 will not return to the original position, but will return to a place not far from the original position. The uncleaned filter is located at the bottom, ensuring that most of the filter is through. After a period of time or after the water flow stops, the bottom filter is cleaned by receiving the rotating movable rod 41 or due to the restoring effect of the coil spring.

[0036] Specifically, Figure 2 and Figure 5 As shown, the cleaning sheet 7 is an elastic metal spring sheet, and the number of the cleaning sheets 7 is two, and the two cleaning sheets 7 are symmetrically distributed with the center of the movable rod 41 as the midpoint.

[0037] By adopting the above technical solution, the two symmetrically installed cleaning sheets 7 can cover the entire filter screen 6 through deformation, so that the dirt filtered on the surface of the filter screen 6 can be removed by scraping.

[0038] Specifically, Figure 2 As shown, the water inlet pipe 2 and the positions corresponding to the two cleaning sheets 7 are provided with receiving grooves, and one end of the two cleaning sheets 7 extends into the receiving grooves.

[0039] By adopting the above technical solution, when the cleaning sheet 7 follows the movement of the movable rod 41, the cleaning sheet 7 in the storage groove extends outward, better cooperating with the movement of the movable rod 41 to clean the filter screen 6, while maintaining the stability of the cleaning sheet 7.

[0040] Specifically, Figure 3 As shown, a sealing gasket 51 is fixedly installed on the outer surface of the upper end of the sewage pipe 5. The sealing gasket 51 is made of rubber. The lower end of the movable rod 41 is the same size as the inner part of the sewage pipe 5. The movable rod 41 is movably connected to the sewage pipe 5.

[0041] By adopting the above technical solution, when the cleaning valve 4 is closed, the lower end of the movable rod 41 is tightly fitted with the sewage pipe 5 in cooperation with the rubber sealing gasket 51 to prevent water leakage in the pipe.

[0042] Specifically, Figure 4 As shown, a T-shaped slot is provided inside the lower end of the cleaning valve 4, the upper end of the movable rod 41 is a T-shaped structure, and the movable rod 41 and the T-shaped slot cooperate with each other.

[0043] By adopting the above technical solution, when the cleaning valve 4 rotates, the movable rod 41 remains stationary, and the cleaning sheet 7 always fits with the filter screen 6 while following the up and down movement of the cleaning valve 4 .

[0044] Specifically, Figure 2 and Figure 5 As shown, a fixing seat is fixedly installed at the connection between the movable rod 41 and the cleaning sheet 7, and the movable rod 41 is rotatably installed with the cleaning sheet 7 through the fixing seat.

[0045] By adopting the above technical solution, the cleaning sheet 7 will not be separated from the movable rod 41 when it is squeezed and deformed, and it is convenient to maintain, repair and replace the cleaning sheet 7 in daily use.

[0046] The coil spring 11 is connected to the fixing plate 9, and the fixing plate 9 is connected to the pipeline.

[0047] The pipe and the coil spring 11 are connected via the fixing plate 9 .

[0048] The sliding groove 411 is a wedge-shaped groove, and the sliding block 13 is a wedge-shaped block matched with the wedge-shaped groove.

[0049] This facilitates the sliding of the sliding groove 411 while preventing the sliding block 13 from being separated from the wedge-shaped groove.

[0050] Working principle: When the device is in use, the inside of the water inlet pipe 2 is under the impact of the water flow for a long time, and the water pipe is corroded and oxidized by the water flow, producing rust. At the same time, the welding slag at the welding point when the pipe is welded will also be impacted by the water flow. Welding slag, rust and other dirt flow inside the water inlet pipe 2. When flowing through the filter 6, the filter 6 intercepts the dirt, and the water flow without dirt passes through the filter 6 and the connecting valve 3 into the regulating valve, so as to prevent rust, welding slag and other dirt from entering the regulating valve and causing wear to the valve core and valve seat of the regulating valve, affecting the normal operation of the regulating valve, and improving the service life of the device. When the filter 6 needs to be cleaned and maintained, the cleaning valve 4 is rotated to move the cleaning valve 4 upward, and at the same time, the cleaning valve 4 drives the cleaning sheet 7 upward to scrape and clean the surface of the filter 6, and the cleaning sheet 7 is deformed upward, and the cleaning sheet 7 inside the storage tank extends outward. , driven by the movable rod 41, it moves upward to clean the upper half of the filter screen 6. At the same time, the movable rod 41 is separated from the sewage pipe 5. Because the pressure at the sewage outlet 22 is relatively small, the dirt scraped by the cleaning piece 7 is discharged from the sewage outlet 22 and the sewage pipe 5 through the water flow under the action of pressure, and then the cleaning valve 4 is turned downward until the movable rod 41 is tightly fitted with the sewage pipe 5. During this process, the cleaning piece 7 scrapes and cleans the entire outer surface of the filter screen 6 downward, and the dirt is also discharged through the sewage outlet 22 and the sewage pipe 5. Finally, the movable rod 41 is tightly fitted with the sewage pipe 5 under the action of the sealing gasket 51 to maintain a sealed state. The device can clean the dirt attached to the surface of the filter screen 6 in time without the need to disassemble the device. The cleaning method is simple, fast and efficient, which improves the use effect of the device.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature and pressure reducing regulating valve, comprising a regulating valve body (1), characterized in that: A water inlet pipe (2) is fixedly mounted on the outer surface of one side of the regulating valve body (1); a connecting valve (3) is fixedly mounted on the outer surface of the water inlet pipe (2) on the side close to the regulating valve body (1); the water inlet pipe (2) is fixedly mounted on the regulating valve body (1) via the connecting valve (3); a valve hole (21) is provided on the outer surface of the water inlet pipe (2) on the side close to the connecting valve (3); a cleaning valve (4) is movably mounted inside the valve hole (21); a movable rod (41) is movably mounted inside the lower end of the cleaning valve (4); a cleaning sheet (7) is fixedly mounted on the outer surface of the movable rod (41); a valve hole (21) is provided below the valve hole (21); A sewage outlet (22) is provided, a sewage outlet (5) is fixedly installed inside the sewage outlet (22), a filter screen (6) is fixedly installed inside the water inlet pipe (2) near the cleaning sheet (7), the filter screen (6) is fitted with the cleaning sheet (7), an impeller (12) is connected to the movable rod (41), the impeller (12) can move and rotate with the water flow, the movable rod (41) is provided with a sliding groove (411), a sliding block (13) is arranged in the sliding groove (411), the sliding block (13) is connected to a coil spring (11), and the coil spring (11) is connected to the water inlet pipe (2) at one end away from the sliding block (13); The cleaning sheet (7) is an elastic metal spring sheet, and the number of the cleaning sheets (7) is two, and the two cleaning sheets (7) are symmetrically distributed with the center of the movable rod (41) as the midpoint; The water inlet pipe (2) and the two cleaning sheets (7) are provided with receiving grooves at positions corresponding to each other, and one end of the two cleaning sheets (7) extends into the receiving groove; A sealing gasket (51) is fixedly mounted on the outer surface of the upper end of the sewage pipe (5), and the sealing gasket (51) is made of rubber. The lower end of the movable rod (41) is the same size as the inside of the sewage pipe (5), and the movable rod (41) is movably connected to the sewage pipe (5); A T-shaped groove is provided inside the lower end of the cleaning valve (4), the upper end of the movable rod (41) is a T-shaped structure, and the movable rod (41) and the T-shaped groove cooperate with each other; A fixing seat is fixedly installed at the connection between the movable rod (41) and the cleaning sheet (7), and the movable rod (41) is rotatably installed with the cleaning sheet (7) through the fixing seat; The coil spring (11) is connected to a fixing plate (9), and the fixing plate (9) is connected to a pipeline; The sliding groove (411) is a wedge-shaped groove, and the sliding block (13) is a wedge-shaped block that matches the wedge-shaped groove.

Images