High-pressure regulating valve

Abstract

The utility model belongs to the technical field of regulating valves, and particularly discloses a high-pressure regulating valve which comprises a valve body, and a flow slowing assembly is arranged in the valve body. The flow slowing assembly comprises a buffering cavity, a corrugated sleeve is arranged in the buffering cavity, a plurality of supporting rods are fixedly connected to the front side of the corrugated sleeve, the supporting rods are obliquely arranged, a buffering plate is fixedly connected to one ends of the supporting rods, a conical contraction section is arranged at one end of the buffering cavity in a communicating mode, and a grating is arranged at the end, away from the buffering cavity, of the conical contraction section. According to the flow slowing assembly, through the cooperation of a buffer plate, a corrugated sleeve and a conical contraction section in the flow slowing assembly, the flow speed and pressure of media can be obviously slowed down, impact on the interior of the valve and a valve element structure is reduced, and the service life of the valve is prolonged; the energy of the medium can be further dispersed, so that the medium flows more stably in the valve bin, and the precision and the stability of the valve element on flow regulation are improved.

Description

Technical Field

[0001] The present application relates to the technical field of regulating valves, and more specifically, to a high-pressure regulating valve. Background Art

[0002] Pneumatic high-pressure regulating valves are widely used in various industries, especially in boilers. They are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. Under high temperature and high pressure process conditions, the reliability and safety requirements of the regulating valve are usually high. This is because the harsh working conditions may have a significant impact on the performance and life of the valve. Ordinary pneumatic high-pressure regulating valves exist in the form of 90-degree right-angled angle regulating valves. Pneumatic high-pressure regulating valves equipped with multi-spring pneumatic diaphragms are often used in harsh working conditions such as high pressure and high pressure difference.

[0003] During the use of the existing high-pressure regulating valve, in order to ensure that the high-pressure and large-flow medium passes through the valve, the valve needs to be opened and closed continuously. The increase in the frequency of valve opening will cause serious scouring damage to the valve core and valve seat, making the valve unable to continue to be used, greatly shortening the service life of the regulating valve and affecting the sealing performance of the valve. Utility Model Content

[0004] In order to solve the above problems, the present application provides a high-pressure regulating valve.

[0005] The high-pressure regulating valve provided in this application adopts the following technical solution:

[0006] A high-pressure regulating valve comprises a valve body, wherein a slow-flow component is arranged inside the valve body;

[0007] The slow flow component includes a buffer chamber, a corrugated sleeve is arranged inside the buffer chamber, a plurality of support rods are fixedly connected to the front side of the corrugated sleeve, the plurality of support rods are arranged obliquely, a buffer plate is fixedly connected to one end of the plurality of support rods, and a conical contraction section is arranged at one end of the buffer chamber.

[0008] Through the above technical solution, the cooperation of the buffer plate, corrugated sleeve and conical contraction section in the slow flow assembly can significantly slow down the flow rate and pressure of the medium, reduce the impact on the internal structure of the valve and the valve core, and extend the service life of the valve.

[0009] Furthermore, a grid is provided at one end of the conical contraction section away from the buffer chamber, and the grid is used to further disperse the energy of the medium.

[0010] Through the above technical solution, the grid can further disperse the energy of the medium, making the flow of the medium in the valve chamber more stable.

[0011] Furthermore, a water inlet and a water outlet are respectively connected at both ends of the valve body, one end of the water inlet is connected to the buffer chamber, a valve chamber is provided inside the valve body, and a valve core is provided inside the valve chamber.

[0012] Through the above technical solution, the movement of the valve core can adjust the flow rate of the medium.

[0013] Furthermore, a valve stem is provided on the top of the valve core, one end of the conical contraction section is connected to the valve chamber, and the other end of the valve chamber is connected to the water outlet.

[0014] Furthermore, a sleeve is provided on the top of the valve body, and a support column is provided on the top of the sleeve.

[0015] Furthermore, a pull rod is provided inside the support column, and one end of the valve stem passes through the sleeve and the support column and is connected to the pull rod.

[0016] Through the above technical solution, the electric device drives the pull rod to move, and the pull rod pushes the valve stem to move the valve core, thereby changing the contact position between the valve core and the conical contraction section and the water outlet, thereby adjusting the flow rate.

[0017] Furthermore, a pressure gauge is provided at one end of the pull rod, and two ends of the valve core are in contact with the conical contraction section and the water outlet respectively.

[0018] Through the above technical solution, the pressure gauge displays the pressure inside the valve in real time.

[0019] Furthermore, an electric device is provided above the support column, and the bottom of the electric device is connected to the pull rod.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] The utility model can significantly slow down the flow rate and pressure of the medium through the cooperation of the buffer plate, the corrugated sleeve and the conical contraction section in the slow flow component, reduce the impact on the valve interior and the valve core structure, and extend the service life of the valve. Through the setting of the grid, the energy of the medium can be further dispersed, so that the flow of the medium in the valve chamber is more stable, which helps to improve the accuracy and stability of the valve core in regulating the flow rate;

[0022] The design of the slow flow component in the utility model enables the high-pressure regulating valve to better adapt to high-pressure working conditions, improves the reliability and stability of the valve under complex working conditions, reduces the wear of the valve core and valve seat, and can better maintain the integrity and tightness of its sealing surface, thereby effectively enhancing the sealing performance of the valve and reducing the risk of medium leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a side view of the utility model;

[0025] Figure 3This is a schematic diagram of the internal structure of the valve body of the utility model;

[0026] Figure 4 It is a schematic diagram of the connection structure between the buffer chamber and the conical contraction section of the utility model;

[0027] Figure 5 It is a schematic diagram of the internal structure of the buffer chamber of the utility model.

[0028] Explanation of the reference numerals: 1. valve body; 2. support column; 3. electric device; 4. pull rod; 5. pressure gauge; 6. water inlet; 7. water outlet; 8. sleeve; 9. buffer chamber; 10. buffer plate; 11. support rod; 12. valve chamber; 13. valve core; 14. valve stem; 15. conical contraction section; 16. grille; 17. corrugated sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0030] Reference Figure 1-Figure 5 , a high-pressure regulating valve, comprising a valve body 1, wherein a slow-flow component is provided inside the valve body 1;

[0031] The slow flow component includes a buffer chamber 9, a corrugated sleeve 17 is provided inside the buffer chamber 9, a plurality of support rods 11 are fixedly connected to the front side of the corrugated sleeve 17, the plurality of support rods 11 are inclinedly arranged, a buffer plate 10 is fixedly connected to one end of the plurality of support rods 11, a conical contraction section 15 is connected to one end of the buffer chamber 9, a grille 16 is provided at the end of the conical contraction section 15 away from the buffer chamber 9, and the grille 16 is used to further disperse the energy of the medium.

[0032] Through the cooperation of the buffer plate 10, the corrugated sleeve 17 and the conical contraction section 15 in the slow flow assembly, the flow rate and pressure of the medium can be significantly slowed down, the impact on the internal structure of the valve and the valve core 13 can be reduced, and the service life of the valve can be extended. Through the setting of the grid 16, the energy of the medium can be further dispersed, making the flow of the medium in the valve chamber 12 smoother, which helps to improve the accuracy and stability of the flow regulation of the valve core 13.

[0033] The design of the entire slow-flow assembly enables the high-pressure regulating valve to better adapt to high-pressure working conditions, improves the reliability and stability of the valve under complex working conditions, reduces the degree of wear on the valve core 13 and the valve seat, and can better maintain the integrity and tightness of its sealing surface, thereby effectively enhancing the sealing performance of the valve and reducing the risk of medium leakage.

[0034] Reference Figure 3-Figure 5 The two ends of the valve body 1 are respectively connected with a water inlet 6 and a water outlet 7, one end of the water inlet 6 is connected with the buffer chamber 9, a valve bin 12 is provided inside the valve body 1, a valve core 13 is provided inside the valve bin 12, a valve stem 14 is provided on the top of the valve core 13, one end of the conical contraction section 15 is connected with the valve bin 12, and the other end of the valve bin 12 is connected with the water outlet 7.

[0035] When the medium enters the valve body 1 from the water inlet 6, it first enters the buffer chamber 9, and the medium impacts the buffer plate 10. The buffer plate 10 is subjected to force and transmitted to the bellows 17 through the support rod 11. The bellows 17 deforms and absorbs part of the energy, thereby playing a preliminary buffering role for the medium. The medium after preliminary buffering then passes through the conical contraction section 15, and the flow rate and pressure of the medium are further adjusted. Subsequently, the medium passes through the grille 16, and its energy is further dispersed. Finally, the medium enters the valve chamber 12, and the valve stem 14 controls the valve core 13 to adjust the flow rate of the medium, and finally flows out from the water outlet 7.

[0036] Reference Figure 1-Figure 3 A sleeve 8 is provided on the top of the valve body 1, a support column 2 is provided on the top of the sleeve 8, a pull rod 4 is provided inside the support column 2, one end of the valve stem 14 passes through the sleeve 8 and the support column 2 and is connected to the pull rod 4, one end of the pull rod 4 is provided with a pressure gauge 5, two ends of the valve core 13 are respectively in contact with the conical contraction section 15 and the water outlet 7, an electric device 3 is provided above the support column 2, and the bottom of the electric device 3 is connected to the pull rod 4.

[0037] When the medium enters the valve chamber 12, the electric device 3 drives the pull rod 4 to move, and the pull rod 4 pushes the valve stem 14 to move the valve core 13, changing the contact position between the valve core 13 and the conical contraction section 15 and the water outlet 7, thereby adjusting the flow rate. The pressure gauge 5 displays the pressure inside the valve in real time, and finally the medium flows out from the water outlet 7.

[0038] Working principle: When in use, the high-pressure regulating valve is installed on the water spray pipe of the boiler water spray desuperheater, and the water inlet 6 and the water outlet 7 are fixed at both ends of the pipe to adjust the water spray volume. When the medium enters the valve body 1 from the water inlet 6, it first flows through the buffer chamber 9, and is blocked by the buffer plate 10 in the buffer chamber 9. The buffer plate 10 transmits the force to the corrugated sleeve 17 through the support rod 11. The corrugated sleeve 17 deforms and absorbs energy to achieve preliminary buffering. After that, the medium passes through the conical contraction section 15 to adjust the flow rate and pressure, and then further disperses the energy through the grille 16, and then enters the valve chamber 12. The electric device 3 drives the pull rod 4 to move, and the pull rod 4 pushes the valve stem 14 to move the valve core 13, changing the contact position of the valve core 13 with the conical contraction section 15 and the water outlet 7, thereby adjusting the flow rate. The pressure gauge 5 displays the pressure in the valve in real time, and finally the medium flows out from the water outlet 7.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high pressure regulating valve, characterized in that: include: A valve body (1), wherein a flow-slowing component is provided inside the valve body (1); A flow-slowing component comprises a buffer chamber (9), wherein a corrugated sleeve (17) is provided inside the buffer chamber (9), a plurality of support rods (11) are fixedly connected to the front side of the corrugated sleeve (17), the plurality of support rods (11) are arranged in an inclined manner, a buffer plate (10) is fixedly connected to one end of the plurality of support rods (11), and a conical contraction section (15) is provided in communication with one end of the buffer chamber (9).

2. A high pressure regulating valve according to claim 1, characterized in that: A grid (16) is provided at one end of the conical contraction section (15) away from the buffer chamber (9), and the grid (16) is used to further disperse the energy of the medium.

3. A high pressure regulating valve according to claim 1, characterized in that: The two ends of the valve body (1) are respectively connected with a water inlet (6) and a water outlet (7), one end of the water inlet (6) is connected with the buffer chamber (9), a valve chamber (12) is provided inside the valve body (1), and a valve core (13) is provided inside the valve chamber (12).

4. A high pressure regulating valve according to claim 3, characterized in that: A valve stem (14) is provided at the top of the valve core (13); one end of the conical contraction section (15) is connected to the valve chamber (12); and the other end of the valve chamber (12) is connected to the water outlet (7).

5. A high pressure regulating valve according to claim 4, characterized in that: A sleeve (8) is provided on the top of the valve body (1), and a support column (2) is provided on the top of the sleeve (8).

6. A high pressure regulating valve according to claim 5, characterized in that: A pull rod (4) is provided inside the support column (2), and one end of the valve stem (14) passes through the sleeve (8) and the support column (2) and is connected to the pull rod (4).

7. A high pressure regulating valve according to claim 6, characterized in that: A pressure gauge (5) is provided at one end of the pull rod (4), and two ends of the valve core (13) are in contact with the conical contraction section (15) and the water outlet (7) respectively.

8. A high pressure regulating valve according to claim 5, characterized in that: An electric device (3) is provided above the support column (2), and the bottom of the electric device (3) is connected to the pull rod (4).

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