High-pressure-difference throttling speed-limiting regulating valve

Abstract

According to the technical scheme, the high-pressure-difference throttling speed-limiting regulating valve is characterized in that the high-pressure-difference throttling speed-limiting regulating valve comprises a regulating valve body, and a base is fixedly installed on the bottom face of the regulating valve body; the flow limiting assembly is arranged on the inner circle wall face of the water outlet hole of the adjusting valve body and used for limiting water flow in the adjusting valve body, the flow limiting assembly comprises a first flow limiting plate, and the first flow limiting plate is fixedly connected to the inner circle wall face of the water outlet hole of the adjusting valve body in a sleeving mode; a plurality of water flowing holes are formed in one end of the first flow limiting plate, and under the mutual cooperation effect of the adjusting valve body, the base, the first flow limiting plate, the water flowing holes, the movable groove, the second flow limiting plate, the flow limiting holes, the extending plate and the connecting hole, the effect of adjusting the flowing speed of liquid by changing the number of the water flowing holes is achieved; and the problem that the adjusting valve is frequently detached to be damaged due to the fact that the aperture of the flow limiting plate is difficult to adjust when flow limiting is needed in the liquid conveying process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, specifically to a high-pressure differential throttling speed limiting regulating valve. Background Technology

[0002] A regulating valve, also known as a control valve, is a final control element in the field of industrial automation process control. It receives control signals from the regulating control unit and uses power to change process parameters such as flow rate, pressure, temperature, and liquid level of the medium. A regulating valve generally consists of an actuator and a valve. In the automatic control of modern factories, regulating valves play a very important role. The production of these factories depends on the correct distribution and control of the flowing medium. Whether it is energy exchange, pressure reduction, or simple container feeding, these controls all require certain final control elements to complete.

[0003] For example, Chinese patent CN215334588U proposes a throttling and speed-limiting structure for a regulating valve. This patent uses the connection between the opening / closing element and the flow-limiting plate. The flow-limiting plate moves synchronously with the opening / closing element. The flow-limiting plate, through the cooperation of flow-limiting holes on its wall and a sealing plate, can increase the number of flow-limiting holes according to the distance the opening / closing element moves, thus achieving different flow rate limits. The valve stem, connected to the opening / closing element by rotation, can be fixed in different positions as needed. Through layered flow limiting, the flow rate can be effectively increased or decreased according to the distance the opening / closing element moves, thus ensuring the flow-limiting speed. Simultaneously, the sealing frame plate prevents leakage during flow limiting, improving the stability of the flow rate. However, this solution requires workers to remove the screws to separate the valve cover from the valve body and remove the opening / closing element from the valve body. Although flow-limiting plates with different orifice diameters can be replaced, the orifice diameter of the flow-limiting plate is difficult to adjust, and frequent disassembly of the regulating valve may accelerate its damage, thus presenting certain limitations. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-pressure differential throttling speed limiting regulating valve. This solves the problem that, although different orifice diameter flow limiting plates can be replaced, the orifice diameter of the flow limiting plate is difficult to adjust, and frequent disassembly of the regulating valve may easily accelerate the damage to the regulating valve, thus presenting certain limitations.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A high-pressure differential throttling and speed-limiting regulating valve includes: a regulating valve body, on the bottom surface of which a base is fixedly mounted; and a flow-limiting component disposed on the inner circular wall of the outlet of the regulating valve body for limiting the water flow within the regulating valve body. The flow-limiting component includes a first flow-limiting plate, which is fixedly sleeved on the inner circular wall of the outlet of the regulating valve body. One end of the first flow-limiting plate has several flow holes. The inner circular wall of the outlet of the regulating valve body has a movable groove, and a second flow-limiting plate is movably sleeved inside the movable groove. One end of the second flow-limiting plate has several flow-limiting holes, and two extension plates are fixedly mounted on one end of the second flow-limiting plate. One end of the outlet pipe of the regulating valve body has a connecting hole, and the inner circular wall of the connecting hole is movably sleeved with the extension plate.

[0007] In order to limit the extension plate, as a high pressure differential throttling speed limiting regulating valve of this utility model, preferably, the outer circular wall of the outlet pipe of the regulating valve body is provided with a rotating groove, and a rotating block is fixedly installed on the outer circular wall of the upper extension plate.

[0008] To make the second flow limiting plate more stable during rotation and easier for operators to adjust, as a high-pressure differential throttling and speed limiting regulating valve of this utility model, preferably, the outer circular wall of the rotating block is provided with two mounting grooves, the mounting grooves are provided with a locking block inside, a spring is fixedly installed at one end of the mounting groove, the locking block is fixedly installed with the spring, and several locking slots are respectively provided at both ends of the rotating groove, the inside of the locking slots is movably connected with the locking block.

[0009] To facilitate the rotation of the extension plate by the operator, as a high-pressure differential throttling and speed-limiting regulating valve of this utility model, preferably, a groove is provided on the outer circular wall of the extension plate, and a fixing plate is fixedly installed inside the groove.

[0010] To prevent liquid leakage during transportation, in a preferred embodiment of this high-pressure differential throttling and speed-limiting regulating valve, a sealing ring is fixedly fitted onto the inner circular wall of the connecting hole, and the inner ring of the sealing ring is movably fitted onto the outer circular wall of the extension plate.

[0011] To make the regulating valve body more stable when placed on the ground, as a high-pressure differential throttling and speed-limiting regulating valve of this utility model, preferably, several support seats are fixedly installed on the bottom surface of the base.

[0012] In summary, the present invention has the following main advantages:

[0013] Through the coordinated action of the regulating valve body, base, first flow limiting plate, water flow hole, movable groove, second flow limiting plate, flow limiting hole, extension plate and connecting hole, the flow velocity of the liquid can be adjusted by changing the number of water flow holes. This avoids the frequent disassembly of the regulating valve, which would cause it to be damaged faster, when the flow limiting plate is difficult to adjust during the liquid transportation process. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the second flow-limiting plate structure of this utility model;

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

[0017] Figure 4 yes Figure 3 A schematic diagram of the partial structure of A in the middle.

[0018] Reference numerals in the attached drawings: 1. Regulating valve body; 2. Base; 3. First flow limiting plate; 4. Water flow hole; 5. Movable groove; 6. Second flow limiting plate; 7. Extension plate; 8. Connecting hole; 9. Flow limiting hole; 10. Rotating groove; 11. Rotating block; 12. Mounting groove; 13. Locking block; 14. Spring; 15. Locking groove; 16. Snap groove; 17. Fixing plate; 18. Sealing ring; 19. Support base. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] refer to Figure 1 , Figure 2 and Figure 3A high-pressure differential throttling and speed-limiting regulating valve includes: a regulating valve body 1, a base 2 fixedly mounted on the bottom surface of the regulating valve body 1, and a flow-limiting component provided on the inner circular wall of the outlet of the regulating valve body 1 for limiting the water flow in the regulating valve body 1. The flow-limiting component includes a first flow-limiting plate 3, which is fixedly sleeved on the inner circular wall of the outlet of the regulating valve body 1. A plurality of water flow holes 4 are opened at one end of the first flow-limiting plate 3. A movable groove 5 is opened on the inner circular wall of the outlet of the regulating valve body 1, and a second flow-limiting plate 6 is movably sleeved inside the movable groove 5. A plurality of flow-limiting holes 9 are opened at one end of the second flow-limiting plate 6, and two extension plates 7 are fixedly mounted on one end of the second flow-limiting plate 6. A connecting hole 8 is opened at one end of the outlet pipe of the regulating valve body 1, and the inner circular wall of the connecting hole 8 is movably sleeved with the extension plates 7. Through the extension plates 7, when the regulating valve body 1 is conveying liquid, the operator can... The inlet and outlet pipes are installed and connected at the inlet and outlet holes of the regulating valve body 1, respectively. During the liquid transport process in the regulating valve body 1, the liquid is diverted and its speed is limited by multiple flow holes 4 on the first flow limiting plate 3. Then, the liquid is further diverted in the flow limiting hole 9, thus performing secondary diversion and speed limitation on the transported liquid. When it is necessary to control and slow down the flow rate of the transported liquid, the operator rotates the extension plate 7, which causes the extension plate 7 to drive the second flow limiting plate 6 to rotate in the movable groove 5. Then, the position of the second flow limiting plate 6 is changed so that the second flow limiting plate 6 blocks some of the flow holes 4 on the first flow limiting plate 3, thereby allowing some of the flow holes 4 to transport liquid normally. This achieves the effect of adjusting the flow rate of the liquid by changing the number of flow holes 4, avoiding the frequent disassembly of the regulating valve due to the difficulty in adjusting the orifice diameter of the flow limiting plate when flow limitation is required during liquid transport, which would cause the regulating valve to be damaged faster.

[0022] Example 2

[0023] Based on the above embodiment 1, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The outer circular wall of the outlet pipe of the regulating valve body 1 is provided with a rotating groove 10. A rotating block 11 is fixedly installed on the outer circular wall of the upper extension plate 7. Two mounting grooves 12 are provided on the outer circular wall of the rotating block 11. A locking block 13 is provided inside the mounting groove 12. A spring 14 is fixedly installed at one end of the mounting groove 12. The locking block 13 and the spring 14 are fixedly installed. Several locking slots 15 are provided at both ends of the rotating groove 10. The inside of the locking slot 15 is movably connected with the locking block 13. A buckle groove 16 is provided on the outer circular wall of the upper extension plate 7. A fixing plate 17 is fixedly installed between the inside of the buckle groove 16. A sealing ring 18 is fixedly sleeved on the inner circular wall of the connecting hole 8. The inner ring of the sealing ring 18 is movably sleeved with the outer circular wall of the extension plate 7. Several support seats 19 are fixedly installed on the bottom surface of the base 2.

[0024] Working principle: Please refer to Figures 1-4 As shown, with the extension plate 7, when the regulating valve body 1 is conveying liquid, the operator connects the liquid inlet pipe and outlet pipe to the inlet and outlet holes of the regulating valve body 1, respectively. During the conveying process within the regulating valve body 1, the liquid is diverted and its speed is limited by multiple flow holes 4 on the first flow limiting plate 3. Then, the liquid is further diverted through the flow limiting holes 9, thus performing secondary diversion and speed limitation on the conveyed liquid. When it is necessary to control and slow down the flow rate of the conveyed liquid, the operator rotates the extension plate 7, causing the extension plate 7 to drive the second flow limiting plate 6 to rotate within the movable groove 5. Then, the position of the second flow limiting plate 6 is changed, causing the second flow limiting plate 6 to block some of the flow holes 4 on the first flow limiting plate 3, thereby allowing some of the flow holes 4 to convey liquid normally. This achieves the effect of adjusting the flow rate of the liquid by changing the number of flow holes 4, avoiding the frequent disassembly of the regulating valve due to the difficulty in adjusting the orifice diameter of the flow limiting plate when flow limitation is required during liquid conveying, which would cause the regulating valve to be damaged prematurely.

[0025] 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 high-pressure differential throttling and speed-limiting regulating valve, characterized in that, include: The regulating valve body (1) has a base (2) fixedly installed on its bottom surface; A flow limiting component is provided on the inner circular wall of the outlet hole of the regulating valve body (1) for limiting the flow of water in the regulating valve body (1). The flow limiting component includes: a first flow limiting plate (3), which is fixedly sleeved on the inner circular wall of the outlet hole of the regulating valve body (1). A plurality of water flow holes (4) are opened at one end of the first flow limiting plate (3). A movable groove (5) is opened on the inner circular wall of the outlet hole of the regulating valve body (1). A second flow limiting plate (6) is movably sleeved inside the movable groove (5). A plurality of flow limiting holes (9) are opened at one end of the second flow limiting plate (6). Two extension plates (7) are fixedly installed at one end of the second flow limiting plate (6). A connection hole (8) is opened at one end of the outlet pipe of the regulating valve body (1). The inner circular wall of the connection hole (8) is movably sleeved with the extension plate (7).

2. The high-pressure differential throttling and speed-limiting regulating valve according to claim 1, characterized in that: The outer circular wall of the outlet pipe of the regulating valve body (1) is provided with a rotating groove (10), and a rotating block (11) is fixedly installed on the outer circular wall of the extension plate (7) above.

3. The high-pressure differential throttling and speed-limiting regulating valve according to claim 2, characterized in that: The outer circular wall of the rotating block (11) has two mounting grooves (12), and a locking block (13) is provided inside the mounting groove (12). A spring (14) is fixedly installed at one end of the mounting groove (12), and the locking block (13) is fixedly installed with the spring (14). Several locking slots (15) are respectively opened at both ends of the rotating groove (10), and the inside of the locking slot (15) is movably connected with the locking block (13).

4. A high-pressure differential throttling and speed-limiting regulating valve according to claim 1, characterized in that: A fastening groove (16) is provided on the outer circular wall of the extension plate (7) above, and a fixing plate (17) is fixedly installed inside the fastening groove (16).

5. A high-pressure differential throttling and speed-limiting regulating valve according to claim 1, characterized in that: A sealing ring (18) is fixedly sleeved on the inner circular wall of the connecting hole (8), and the inner ring of the sealing ring (18) is movably sleeved on the outer circular wall of the extension plate (7).

6. A high-pressure differential throttling and speed-limiting regulating valve according to claim 1, characterized in that: Several support seats (19) are fixedly installed on the bottom surface of the base (2).

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