Pressure regulating valve group with sound attenuation function

Abstract

This utility model relates to the field of industrial control technology and discloses a pressure regulating valve assembly with a noise reduction function, including a valve body. The inner wall of the valve body has an inlet groove, and the inner wall of the inlet groove has a sliding groove and a circular groove. The inner cavity of the valve body is provided with a baffle plate and a valve core. By utilizing three sets of arc-shaped metal plates and circular holes in the mounting cylinder, the gas is divided into two streams when passing through the opening of the arc-shaped metal plates, flowing along both sides of the outer wall and forming a vortex. Through the repeated action of multiple sets of structures, the gas flow velocity and turbulence intensity are greatly reduced, which can effectively attenuate noise. At the same time, it is only necessary to push the slider of the mounting cylinder along the sliding groove and rotate it 90 degrees. The ball and the pin automatically complete the locking and fixing. When disassembling, the locking can be released by pulling the pull rod, thereby effectively shortening the installation time. This facilitates targeted maintenance of vulnerable parts such as arc-shaped metal plates and reduces equipment downtime.

Description

Technical Field

[0001] This utility model relates to the field of industrial control technology, specifically to a pressure regulating valve assembly with a noise reduction function. Background Technology

[0002] In industrial production, urban gas supply, and various fluid transportation systems, pressure regulating valve assemblies are key equipment for achieving precise fluid pressure control. By adjusting the valve opening, they convert high-pressure fluid from upstream into the stable pressure required downstream, and are widely used in chemical, energy, and construction industries.

[0003] When existing pressure regulating valve assemblies are in use, the high-speed flow of fluid, throttling effect, and cavitation phenomenon can generate strong noise. This noise not only damages the hearing health of operators and interferes with the working environment, but may also violate environmental regulations, cause disturbance disputes, and thus reduce the utilization rate of pressure regulating valve assemblies. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pressure regulating valve assembly with a noise reduction function, which has the advantages of convenient installation, disassembly, and adjustment of noise reducers, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a pressure regulating valve assembly with a silencing function, comprising a valve body, an inlet groove on the inner wall of the valve body, a sliding groove and a circular groove on the inner wall of the inlet groove, a baffle plate and a valve core respectively provided in the inner cavity of the valve body, a first spring provided on the outer wall of the baffle plate, an installation cylinder slidably connected to the inner wall of the inlet groove, a slider fixedly mounted on the outer wall of the installation cylinder, an arc-shaped metal sheet fixedly mounted on the inner wall of the installation cylinder, a circular hole on the outer wall of the arc-shaped metal sheet, a connecting assembly provided on the inner wall of the valve body, and an adjusting assembly provided at the bottom of the valve body.

[0006] As a preferred technical solution of this utility model: the connecting component includes a slotted part, the slotted part includes a circular groove two, the inner wall of the valve body is respectively provided with a ball groove, a guide groove, a sliding groove two and a circular groove three, the inner cavity of the circular groove two is respectively provided with a second spring and a ball, the inner wall of the ball is provided with a slot, the inner wall of the guide groove is slidably connected with a pin, the top of the pin is fixedly fitted with a push plate, the outer wall of the push plate is fixedly installed with a pull rod, and the outer wall of the pull rod is provided with a third spring.

[0007] As a preferred technical solution of this utility model: the second spring is located at the bottom of the sphere, with one end overlapping the inner wall of the second circular groove and the other end overlapping the bottom of the sphere; the outer wall of the sphere is slidably fitted to the bottom of the pin; the outer wall of the sphere is adapted to the shape of the inner wall of the sphere groove; the outer wall of the pin is adapted to the shape of the inner wall of the slot; the outer wall of the push plate is slidably fitted to the inner wall of the second sliding groove; and the third spring is located in the inner cavity of the third circular groove, with one end overlapping the outer wall of the push plate and the other end overlapping the inner wall of the third circular groove.

[0008] As a preferred technical solution of this utility model: the adjustment component includes a polygonal groove, a slider two is slidably connected to the inner wall of the polygonal groove, a polygonal partition is fixedly installed on the outer wall of the slider two, a limit post is fixedly assembled on the outer wall of the polygonal partition, a knob is rotatably connected to the bottom of the valve body, and an arc-shaped groove and an outlet groove are respectively opened on the outer wall of the knob.

[0009] As a preferred technical solution of this utility model: the arc groove, the limiting post, the polygonal partition and the slider are regarded as a set of movable components, and the number of such movable components is six, which are arranged in a circular array. The inner wall of the six arc grooves is adapted to the shape of the outer wall of the limiting post, and the outer walls of the six polygonal partitions are respectively fitted and slidably arranged.

[0010] As a preferred technical solution of this utility model: the circular hole and the arc-shaped metal sheet are regarded as a set of movable components, and there are three sets of movable components, which are respectively arranged in parallel in the inner cavity of the mounting cylinder. The outer wall of the slider one is slidably fitted to the inner wall of the slide groove one and the circular groove one, respectively. The first spring is located in the inner cavity of the barrier plate, and one end is connected to the inner wall of the barrier plate, and the other end is connected to the outer wall of the valve core.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This pressure regulating valve assembly with silencing function utilizes three sets of arc-shaped metal plates and round holes inside the mounting cylinder to split the gas into two streams when it passes through the openings of the arc-shaped metal plates. The gas flows along both sides of the outer wall and forms a vortex. Through the repeated action of multiple sets of structures, the gas flow velocity and turbulence intensity are greatly reduced, which can effectively attenuate noise. At the same time, it is only necessary to push the slider of the mounting cylinder into the groove and rotate it 90 degrees. The ball and the pin automatically complete the locking and fixing. When disassembling, the locking can be released by pulling the lever, which can effectively shorten the installation time. This facilitates targeted maintenance of vulnerable parts such as arc-shaped metal plates and reduces equipment downtime.

[0013] 2. This pressure regulating valve assembly with silencing function utilizes the cooperation of six sets of arc grooves and limit posts to achieve stepless opening and closing of polygonal baffles, thereby regulating the flow rate. The larger the opening of the six sets of polygonal baffles, the greater the flow rate; at the same time, the smaller the opening of the six sets of polygonal baffles, the more the flow rate is compressed, thus reducing the flow rate. This adapts to the flow rate fluctuation requirements at different times. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of this utility model;

[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Valve body; 2. Inlet groove; 3. Slide groove one; 4. Circular groove one; 5. Baffle plate; 6. First spring; 7. Valve core; 8. Mounting cylinder; 9. Slider one; 10. Arc-shaped metal sheet; 11. Circular hole; 12. Connecting assembly; 13. Adjusting assembly;

[0020] 121. Groove component; 1211. Circular groove two; 1212. Ball groove; 1213. Guide groove; 1214. Slide groove two; 1215. Circular groove three; 122. Second spring; 123. Ball; 124. Slot; 125. Pin; 126. Push plate; 127. Pull rod; 128. Third spring;

[0021] 131. Polygonal groove; 132. Slider II; 133. Polygonal partition; 134. Limiting post; 135. Rotary knob; 136. Arc groove; 137. Outlet groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 5A pressure regulating valve assembly with a silencing function includes a valve body 1. The inner wall of the valve body 1 has an inlet groove 2. The inner wall of the inlet groove 2 has a sliding groove 3 and a circular groove 4. The inner cavity of the valve body 1 is provided with a baffle plate 5 and a valve core 7. The outer wall of the baffle plate 5 is provided with a first spring 6. The inner wall of the inlet groove 2 is slidably connected to an installation cylinder 8. The outer wall of the installation cylinder 8 is fixedly fitted with a slider 9. The inner wall of the installation cylinder 8 is fixedly installed with an arc-shaped metal piece 10. The outer wall of the arc-shaped metal piece 10 has a circular hole 11. The inner wall of the valve body 1 is provided with a connecting component 12. The bottom of the valve body 1 is provided with an adjusting component 13.

[0024] In the above structure, by setting the valve body 1, the gas first enters the inner cavity of the valve body 1 through the mounting cylinder 8. When the gas passes through the arc-shaped metal plate 10 set in the inner cavity of the mounting cylinder 8, the gas is divided into two ends and distributed to both sides of the outer wall of the arc-shaped metal plate 10 when it passes through the opening of the arc-shaped metal plate 10. This reduces the flow velocity and absorbs turbulent energy. After the gas is distributed, the gas enters and forms a vortex under the gas drive of the gas in the opening of the arc-shaped metal plate 10. The vortex flows through the slider 9 opened on the outer wall of the arc-shaped metal plate 10 to the next set of arc-shaped metal plates 10 and slider 9. The multiple sets of arc-shaped metal plates 10 and slider 9 will gradually attenuate the noise generated by the gas.

[0025] In a preferred embodiment: the connecting component 12 includes a slotted part 121, the slotted part 121 includes a second circular slot 1211, the inner wall of the valve body 1 is respectively provided with a ball slot 1212, a guide slot 1213, a second sliding slot 1214 and a third circular slot 1215, the inner cavity of the second circular slot 1211 is respectively provided with a second spring 122 and a ball 123, the inner wall of the ball 123 is provided with a slot 124, the inner wall of the guide slot 1213 is slidably connected with a pin 125, the top of the pin 125 is fixedly fitted with a push plate 126, the outer wall of the push plate 126 is fixedly installed with a pull rod 127, and the outer wall of the pull rod 127 is provided with a third spring 128;

[0026] In a preferred embodiment: the second spring 122 is located at the bottom of the sphere 123, with one end overlapping the inner wall of the second circular groove 1211 and the other end overlapping the bottom of the sphere 123; the outer wall of the sphere 123 is slidably fitted to the bottom of the pin 125; the outer wall of the sphere 123 is adapted to the shape of the inner wall of the sphere groove 1212; the outer wall of the pin 125 is adapted to the shape of the inner wall of the slot 124; the outer wall of the push plate 126 is slidably fitted to the inner wall of the second sliding groove 1214; and the third spring 128 is located in the inner cavity of the third circular groove 1215, with one end overlapping the outer wall of the push plate 126 and the other end overlapping the inner wall of the third circular groove 1215.

[0027] In the above structure, by configuring the sphere 123 and the pin 125, when the sphere 123 contacts the inner wall of the circular groove 121, the sphere 123 is compressed, causing the second spring 122 to compress and contract into the inner cavity of the circular groove 1211. Then, by rotating the mounting cylinder 8, the sphere 123 continues to move. When the sphere 123 reaches the corresponding groove 1212, it is returned to its inner cavity by the rebound of the second spring 122. The sphere 123 then first comes into contact with the outer wall of the pin 125, causing the pin 125 to engage with the sphere 123. Under the pressure of 23, one end will slide along the inner wall of the guide groove 1213, causing the other end to drive the push plate 126 to slide along the inner wall of the slide groove 1214. At the same time, it will drive the third spring 128 to compress, so that when the pin 125 continues to slide against the outer wall of the ball 123, when the pin 125 corresponds to the slot 124, the push plate 126 will be reset by the rebound of the third spring 128, causing the pin 125 to move into the inner cavity of the slot 124. Thus, the pin 125 inserted into the inner cavity of the slot 124 will fix the ball 123, thereby fixing the mounting cylinder 8 to the inner wall of the inlet groove 2, thus completing its installation.

[0028] In a preferred embodiment: the adjusting component 13 includes a polygonal groove 131, a slider 132 is slidably connected to the inner wall of the polygonal groove 131, a polygonal partition 133 is fixedly installed on the outer wall of the slider 132, a limit post 134 is fixedly assembled on the outer wall of the polygonal partition 133, and a knob 135 is rotatably connected to the bottom of the valve body 1. The outer wall of the knob 135 is respectively provided with an arc-shaped groove 136 and an outlet groove 137.

[0029] In a preferred embodiment: the arc groove 136, the limiting post 134, the polygonal partition 133 and the slider 132 are regarded as a set of movable components, and the number of such movable components is six sets, which are arranged in a circular array. The inner wall of the six arc grooves 136 is adapted to the shape of the outer wall of the limiting post 134, and the outer walls of the six polygonal partitions 133 are respectively fitted and slidably arranged.

[0030] In the above structure, by setting up the polygonal partition 133, the limiting post 134 and the arc-shaped groove 136, the rotation of the knob 135 causes the six arc-shaped grooves 136 to rotate. The inner wall of the rotating arc-shaped groove 136 slides against the outer wall of the limiting post 134. The sliding arc-shaped groove 136 drives the limiting post 134 to rotate synchronously. Under the action of the limiting post 134, the six polygonal partitions 133 slide against the inner wall of the polygonal groove 131 through the six sliders 132. This expands the opening of the six polygonal partitions 133, increasing the flow rate. Then, the opening of the six polygonal partitions 133 narrows, compressing and reducing the flow rate.

[0031] In a preferred embodiment: the circular hole 11 and the arc-shaped metal piece 10 are regarded as a set of movable components, and there are three sets of such movable components, which are respectively arranged in parallel in the inner cavity of the mounting cylinder 8. The outer wall of the slider 9 is slidably fitted to the inner wall of the slide groove 3 and the circular groove 4 respectively. The first spring 6 is located in the inner cavity of the baffle plate 5, and one end is connected to the inner wall of the baffle plate 5, and the other end is connected to the outer wall of the valve core 7.

[0032] In the above structure, by aligning the mounting cylinder 8 with the inner wall of the inlet groove 2, and then aligning the slider 9 with the inner wall of the slide groove 3, the mounting cylinder 8 is pushed, causing it to slide along the inner wall of the inlet groove 2 and thus causing the slider 9 to slide along the inner wall of the slide groove 3. After the slider 9 slides to the outer wall of the circular groove 4, the mounting cylinder 8 is rotated 90 degrees, causing it to drive the slider 9 to slide along the inner wall of the circular groove 4. At this point, the mounting cylinder 8 is secured by the connecting assembly 12. Then, when the flow passes through the inner cavity of the mounting cylinder 8, it first passes through the three arc-shaped metal plates 10 set in the inner cavity of the mounting cylinder 8, allowing the flow to pass through the arc-shaped metal plates 10. When the flow rate is at the inlet, it is cut to both sides of the outer wall by the arc-shaped metal sheet 10. The flow rate at the openings on both sides forms a vortex under the flow rate velocity at the openings of the arc-shaped metal sheet 10. The vortex flow rate flows through the slider 9 opened on the outer wall of the mounting cylinder 8 to the next set of arc-shaped metal sheets 10. After passing through multiple layers of arc-shaped metal sheets 10 and slider 9, the flow rate gradually decreases in pressure and noise. Then, after passing through the mounting cylinder 8, the flow rate will come into contact with the outer wall of the valve core 7. Under the pressure of the flow rate, the valve core 7 slides along the inner wall of the valve body 1 and drives the first spring 6 to be compressed. The moving valve core 7 will open the connection between the inlet groove 2 and the outlet groove 137, allowing the flow rate to flow in the direction of the outlet groove 137.

[0033] Working principle: First, align the slider 9 of the mounting cylinder 8 with the inlet groove 2 and slide groove 3 on the inner wall of the valve body 1. Then, push it axially into the inlet groove 2, causing the slider 9 to slide along the slide groove 3 to the position of the circular groove 4. Then, rotate the mounting cylinder 8 to 90 degrees, causing the slider 9 to enter the circular groove 4 and drive the groove part 121 to rotate synchronously. This causes the ball 123 to compress the second spring 122 under the pressure of the inner wall of the circular groove 4, causing it to contract into the inner cavity of the second circular groove 1211. When the ball 123 is aligned with the ball groove 1212, the rebound of the second spring 122 causes the ball 123 to embed into the inner cavity of the ball groove 1212. At this time, the ball 123 will push the pin 125 to slide along the inner wall of the guide groove 1213, causing it to drive the push plate 126 to slide along the inner wall of the second slide groove 1214, so that the sliding push... The plate 126 will drive the third spring 128 to compress, so that when the pin 125 is aligned with the slot 124, the push plate 126 will be reset by the rebound of the third spring 128. The reset push plate 126 will drive the pin 125 to insert into the inner cavity of the slot 124, thereby locking the mounting cylinder 8. The high-pressure gas enters the inner cavity of the mounting cylinder 8 from the inlet groove 2 and first contacts the arc-shaped metal plate 10. The gas is divided into two streams through the opening of the arc-shaped metal plate 10 and flows along both sides of the outer wall of the arc-shaped metal plate 10, forming a vortex. The vortex enters the next layer of arc-shaped metal plates 10 through the round hole 11. The three sets of arc-shaped metal plates 10 and round holes 11 will repeatedly split the airflow and create vortices, so that the gas flow rate and turbulence intensity are gradually reduced, thereby gradually attenuating the noise.

[0034] Secondly, the depressurized gas impacts the valve core 7, causing it to push the valve core 7 to compress the first spring 6 and move towards the outlet. This balances the elastic force of the first spring 6 with the gas pressure, controlling the opening of the valve core 7 and maintaining a stable outlet pressure. Then, manually rotating the knob 135 at the bottom of the valve body 1 causes the six sets of arc grooves 136 to rotate synchronously. This causes the inner walls of the six sets of arc grooves 136 to push the limit post 134 to move radially, and drive the six sets of polygonal partitions 133. The six sets of polygonal partitions 133 slide relative to each other along the inner walls of the polygonal grooves 131 via the slider 2 132. Rotating the knob 135 clockwise expands the opening of the six sets of polygonal partitions 133, increasing the flow area. At the same time, rotating the knob 135 counterclockwise reduces the opening of the six sets of polygonal partitions 133, thereby reducing the flow area.

[0035] Then, by pulling the lever 127, the push plate 126 is moved and the third spring 128 is compressed, causing the pin 125 to exit the slot 124. The mounting cylinder 8 is rotated 90 degrees counterclockwise, causing the slider 9 to retract from the inner cavity of the circular groove 4 to correspond to the sliding groove 3, so that the mounting cylinder 8 can be pulled out along the axial direction, and the internal components such as the arc-shaped metal sheet 10 can be cleaned or replaced.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure regulating valve assembly with a silencing function, comprising a valve body (1), characterized in that: The valve body (1) has an inlet groove (2) on its inner wall. The inner wall of the inlet groove (2) has a sliding groove (3) and a circular groove (4). The inner cavity of the valve body (1) is provided with a baffle plate (5) and a valve core (7). The outer wall of the baffle plate (5) is provided with a first spring (6). The inner wall of the inlet groove (2) is slidably connected to an installation cylinder (8). The outer wall of the installation cylinder (8) is fixedly fitted with a slider (9). The inner wall of the installation cylinder (8) is fixedly installed with an arc-shaped metal piece (10). The outer wall of the arc-shaped metal piece (10) has a circular hole (11). The inner wall of the valve body (1) is provided with a connecting component (12). The bottom of the valve body (1) is provided with an adjusting component (13).

2. The pressure regulating valve assembly with silencing function according to claim 1, characterized in that: The connecting assembly (12) includes a slotted part (121), the slotted part (121) includes a second circular slot (1211), the inner wall of the valve body (1) is provided with a ball groove (1212), a guide groove (1213), a second sliding groove (1214) and a third circular slot (1215), the inner cavity of the second circular slot (1211) is provided with a second spring (122) and a ball (123), the inner wall of the ball (123) is provided with a slot (124), the inner wall of the guide groove (1213) is slidably connected with a pin (125), the top of the pin (125) is fixedly fitted with a push plate (126), the outer wall of the push plate (126) is fixedly installed with a pull rod (127), and the outer wall of the pull rod (127) is provided with a third spring (128).

3. The pressure regulating valve assembly with silencing function according to claim 2, characterized in that: The second spring (122) is located at the bottom of the sphere (123), with one end overlapping the inner wall of the second circular groove (1211) and the other end overlapping the bottom of the sphere (123). The outer wall of the sphere (123) is slidably fitted to the bottom of the pin (125). The outer wall of the sphere (123) is adapted to the shape of the inner wall of the ball groove (1212). The outer wall of the pin (125) is adapted to the shape of the inner wall of the slot (124). The outer wall of the push plate (126) is slidably fitted to the inner wall of the second sliding groove (1214). The third spring (128) is located in the inner cavity of the third circular groove (1215), with one end overlapping the outer wall of the push plate (126) and the other end overlapping the inner wall of the third circular groove (1215).

4. The pressure regulating valve assembly with silencing function according to claim 1, characterized in that: The adjustment component (13) includes a polygonal groove (131), a slider two (132) is slidably connected to the inner wall of the polygonal groove (131), a polygonal partition (133) is fixedly installed on the outer wall of the slider two (132), a limit post (134) is fixedly assembled on the outer wall of the polygonal partition (133), and a knob (135) is rotatably connected to the bottom of the valve body (1). The outer wall of the knob (135) is respectively provided with an arc-shaped groove (136) and an outlet groove (137).

5. The pressure regulating valve assembly with silencing function according to claim 4, characterized in that: The arc-shaped groove (136), the limiting post (134), the polygonal partition (133), and the slider (132) are considered as a set of movable components, and there are six sets of such movable components, which are arranged in a circular array. The inner wall of the six arc-shaped grooves (136) is adapted to the shape of the outer wall of the limiting post (134), and the outer walls of the six polygonal partitions (133) are respectively fitted and slidably arranged.

6. The pressure regulating valve assembly with silencing function according to claim 1, characterized in that: The circular hole (11) and the arc-shaped metal piece (10) are considered as a set of movable components, and there are three sets of such movable components, which are respectively arranged in parallel in the inner cavity of the mounting cylinder (8). The outer wall of the slider (9) is respectively attached to the inner wall of the sliding groove (3) and the circular groove (4). The first spring (6) is located in the inner cavity of the barrier plate (5), and one end is connected to the inner wall of the barrier plate (5), and the other end is connected to the outer wall of the valve core (7).

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