Automatic pressure regulating valve for sewage treatment

Abstract

The utility model discloses an automatic pressure regulating valve for sewage treatment in the related technical field of sewage treatment, which comprises a pressure regulating valve main body and an upper valve cover, an automatic pressure regulating box is arranged on the upper valve cover of the pressure regulating valve main body, and an upper valve hole and a lower valve hole are arranged on an isolation inner wall in the pressure regulating valve main body. The automatic pressure regulating valve is of the double-valve-hole structure, the outer sides of the upper valve body and the lower valve body are of the conical surface structure design, sewage enters the pressure regulating valve body from the water inlet end, the stress conical surfaces of the upper valve body and the lower valve body are stressed, under the decomposition effect of the force, the valve bodies receive upward acting force, the larger the water pressure is, the larger the upward decomposition force is, and the larger the water pressure is, the larger the water pressure is. The valve body drives the automatic pressure regulating valve rod to move upwards, the flux of the upper valve hole and the lower valve hole is increased, automatic pressure regulation is achieved, the manual regulating valve rod is arranged below the pressure regulating valve body, the automatic pressure regulating range can be set, no electrical element is needed in the pressure regulating process, operation is easy, use is convenient, and cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field related to sewage treatment, and specifically relates to an automatic pressure regulating valve for sewage treatment. Background Art

[0002] Sewage treatment refers to the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering, and is increasingly entering the daily lives of ordinary people. Pressure regulating valves are needed in sewage treatment systems. The regulating valves are automatically controlled during factory operations and play the role of variable resistance in the pipeline. They adjust the pressure, flow, temperature and other parameters of the medium and are the final control elements in the process loop. Traditional sewage treatment pressure regulating valves mostly monitor pipeline pressure through electronic components, and adjust the control element pressure regulating valve through signal transmission and processing. The adjustment process mainly relies on the electrical component process. Some electronic components are in contact with sewage and are corroded and impacted by sewage, which has a certain impact on the service life. In addition, electronic components need to be equipped with power supply devices, and the use and installation costs are relatively high.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic pressure regulating valve for sewage treatment. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] The automatic pressure regulating valve for sewage treatment comprises a pressure regulating valve body and an upper valve cover, wherein the upper valve cover of the pressure regulating valve body is provided with an automatic pressure regulating box, an upper valve hole and a lower valve hole are provided on the isolation inner wall of the pressure regulating valve body, an automatic pressure regulating valve stem is passed through the upper valve hole and the lower valve hole, a supporting sliding seat is provided at the lower part of the pressure regulating valve body, a lower sliding matching hole is provided in the supporting sliding seat, the lower end of the automatic pressure regulating valve stem is inserted and installed in the lower sliding matching hole, and a fixed pressure regulating valve stem is provided at the top of the automatic pressure regulating box. There is an upper sliding seat, an upper sliding matching hole is opened in the upper sliding seat, the upper end of the automatic pressure regulating valve stem is inserted and installed in the upper sliding matching hole, a spring compression plate is fixedly arranged outside the automatic pressure regulating valve stem, a pressure regulating spring is arranged between the spring compression plate and the upper sliding seat, the pressure regulating spring is sleeved on the outside of the automatic pressure regulating valve stem, an upper valve body and a lower valve body are arranged at the upper valve hole and the lower valve hole, the upper valve body and the upper valve hole cooperate with each other, and the lower valve body and the lower valve hole cooperate with each other.

[0006] As a further solution of the utility model: the upper valve body, the lower valve body and the automatic pressure regulating valve stem are fixedly connected, and the outer sides of the upper valve body and the lower valve body are provided with force-bearing conical surfaces. Sewage enters the pressure regulating valve body from the water inlet end, and the force-bearing conical surfaces of the upper valve body and the lower valve body are stressed. Under the decomposition of the force, the valve body receives an upward force.

[0007] As a further solution of the utility model: a guide sleeve is provided at the matching position of the automatic pressure regulating valve stem and the upper valve cover, an adjusting sliding cavity is opened at the lower end of the automatic pressure regulating valve stem, and a limit matching end plate at the upper end of the manual adjusting valve stem is installed in the adjusting sliding cavity. The manual adjusting valve stem can drive the automatic pressure regulating valve stem to move downward as a whole, and the adjusting sliding cavity is used to provide space for the up and down movement of the automatic pressure regulating valve stem.

[0008] As a further solution of the utility model: a manual adjusting wheel is fixedly provided on the outer end of the manual adjusting valve stem, the manual adjusting valve stem is connected to the pressure regulating valve body through a fine thread, and the position of the manual adjusting valve stem is adjusted by rotating the manual adjusting wheel.

[0009] As a further solution of the utility model: one end of the pressure regulating valve body is a water inlet end, and the other end is a water outlet end, the end positions of the water inlet end and the water outlet end are integrally provided with connecting flanges, and a sealing step is provided on the outer end surface of the connecting flange to improve the sealing performance of the connection between the pressure regulating valve body and the pipeline.

[0010] As a further solution of the utility model: the upper valve cover is connected to the pressure regulating valve body by fixing screws, and a matching groove is provided in the pressure regulating valve body just above the upper valve body to match with the upper part of the upper valve body.

[0011] As a further solution of the utility model: the upper valve body is provided with three levels of stress-bearing conical surfaces, which have a large stress-bearing area and can respond quickly when the water pressure is high.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0013] The automatic pressure regulating valve of the utility model has a double valve hole structure. The outer sides of the upper valve body and the lower valve body are designed with a conical surface structure. Sewage enters the main body of the pressure regulating valve from the water inlet end. The force-bearing conical surfaces of the upper valve body and the lower valve body are subjected to force. Under the decomposition effect of the force, the valve body receives an upward force. The greater the water pressure, the greater the upward decomposition force. The valve body drives the automatic pressure regulating valve stem to move upward, thereby increasing the flux of the upper valve hole and the lower valve hole, thereby realizing automatic pressure regulation.

[0014] A manual regulating valve stem is arranged below the main body of the pressure regulating valve of the utility model, and the automatic pressure regulating range can be set. No electrical components are required in the pressure regulating process, and the operation is simple, the use is convenient, and the cost is low.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is the main sectional view of the utility model;

[0019] Figure 3 This is a schematic diagram of the interior of the automatic voltage regulating box of the utility model;

[0020] Figure 4 It is a partial enlarged view of point A of the present utility model.

[0021] In the figure: 1. Pressure regulating valve body; 2. Water inlet end; 3. Water outlet end; 4. Connecting flange; 5. Sealing step; 6. Upper valve cover; 7. Automatic pressure regulating box; 8. Fixing screw; 9. Upper valve hole; 10. Lower valve hole; 11. Upper valve body; 12. Lower valve body; 13. Force cone; 14. Automatic pressure regulating valve stem; 15. Guide sleeve; 16. Support sliding seat; 17. Lower sliding matching hole; 18. Upper sliding seat; 19. Pressure regulating spring; 20. Spring compression plate; 21. Manual adjustment wheel; 22. Manual adjustment valve stem; 23. Adjustment sliding cavity; 24. Limit matching end plate; 25. Upper sliding matching hole.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0024] like Figures 1 to 4 As shown, the automatic pressure regulating valve for sewage treatment comprises a pressure regulating valve body 1 and an upper valve cover 6, an automatic pressure regulating box 7 is arranged on the upper valve cover 6 of the pressure regulating valve body 1, an upper valve hole 9 and a lower valve hole 10 are opened on the isolation inner wall of the pressure regulating valve body 1, an automatic pressure regulating valve stem 14 is passed through the upper valve hole 9 and the lower valve hole 10, a supporting sliding seat 16 is arranged at the lower part of the pressure regulating valve body 1, a lower sliding matching hole 17 is opened in the supporting sliding seat 16, the lower end of the automatic pressure regulating valve stem 14 is inserted and installed in the lower sliding matching hole 17, and a top fixed arrangement is arranged in the automatic pressure regulating box 7. There is an upper sliding seat 18, in which an upper sliding matching hole 25 is opened, and the upper end of the automatic pressure regulating valve stem 14 is inserted and installed in the upper sliding matching hole 25. A spring compression plate 20 is fixedly arranged outside the automatic pressure regulating valve stem 14, and a pressure regulating spring 19 is arranged between the spring compression plate 20 and the upper sliding seat 18. The pressure regulating spring 19 is sleeved on the outer side of the automatic pressure regulating valve stem 14. An upper valve body 11 and a lower valve body 12 are arranged at the upper valve hole 9 and the lower valve hole 10. The upper valve body 11 cooperates with the upper valve hole 9, and the lower valve body 12 cooperates with the lower valve hole 10.

[0025] Among them, the upper valve body 11, the lower valve body 12 and the automatic pressure regulating valve stem 14 are fixedly connected, and the outer sides of the upper valve body 11 and the lower valve body 12 are provided with a force-bearing cone surface 13. When sewage enters the pressure regulating valve body 1 from the water inlet end 2, the force-bearing cone surfaces 13 of the upper valve body 11 and the lower valve body 12 are subjected to force. Under the decomposition of force, the valve body is subjected to an upward force.

[0026] A guide sleeve 15 is provided at the matching position of the automatic pressure regulating valve stem 14 and the upper valve cover 6. An adjusting sliding cavity 23 is opened at the lower end of the automatic pressure regulating valve stem 14. The limiting matching end plate 24 at the upper end of the manual adjusting valve stem 22 is installed in the adjusting sliding cavity 23. The manual adjusting valve stem 22 can drive the automatic pressure regulating valve stem 14 to move downward as a whole. The adjusting sliding cavity 23 is used to provide space for the up and down movement of the automatic pressure regulating valve stem 14.

[0027] A manual adjustment wheel 21 is fixedly provided on the outer end of the manual adjustment valve stem 22 . The manual adjustment valve stem 22 is connected to the pressure regulating valve body 1 via a fine thread. The position of the manual adjustment valve stem 22 is adjusted by rotating the manual adjustment wheel 21 .

[0028] One end of the pressure regulating valve body 1 is the water inlet end 2, and the other end is the water outlet end 3. The end positions of the water inlet end 2 and the water outlet end 3 are integrally provided with connecting flanges 4, and a sealing step 5 is provided on the outer end surface of the connecting flange 4 to improve the sealing performance of the connection between the pressure regulating valve body 1 and the pipeline.

[0029] The upper valve cover 6 is connected to the pressure regulating valve body 1 via fixing screws 8 . A matching groove is provided in the pressure regulating valve body 1 just above the upper valve body 11 to match with the upper part of the upper valve body 11 .

[0030] The upper valve body 11 is provided with a three-level stress-bearing cone surface 13 with a large stress-bearing area, and can respond quickly when the water pressure is high.

[0031] The working principle of the utility model is as follows: sewage enters the pressure regulating valve body 1 from the water inlet end 2. When the water pressure at the water inlet end 2 is high, the sewage impacts the force-bearing cone surfaces 13 of the upper valve body 11 and the lower valve body 12. The force-bearing cone surfaces 13 of the upper valve body 11 and the lower valve body 12 are subjected to force. Under the decomposition of force, the upper valve body 11 and the lower valve body 12 are subjected to an upward force. The greater the water pressure, the greater the upward decomposition force. The upper valve body 11 and the lower valve body 12 drive the automatic pressure regulating valve stem 14 to move upward. The spring compression plate 20 moves upward synchronously with the automatic pressure regulating valve stem 14, compressing the pressure regulating spring 19, increasing the flux of the upper valve hole 9 and the lower valve hole 10, and realizing automatic pressure regulation. When the pressure at the water inlet end 2 becomes smaller, under the action of the pressure regulating spring 19, the automatic pressure regulating valve stem 14 moves downward, realizing synchronous regulation of the flux of the upper valve hole 9 and the lower valve hole 10.

[0032] A manual regulating valve stem 22 is provided below the pressure regulating valve body 1, and the position of the manual regulating valve stem 22 can be adjusted by a manual regulating wheel 21. An adjusting sliding cavity 23 and a limit matching end plate 24 are provided at the matching position of the manual regulating valve stem 22 and the automatic pressure regulating valve stem 14, and the position of the automatic pressure regulating valve stem 14 and the automatic pressure regulating adjustment range can be adjusted by the manual regulating valve stem 22;

[0033] The novel structure of the present invention is reasonably designed and easy to install and use. The automatic pressure regulating valve is a double valve hole structure. The outer sides of the upper valve body 11 and the lower valve body 12 are designed with a conical structure. Sewage enters the pressure regulating valve body 1 from the water inlet end 2. The force-bearing conical surfaces 13 of the upper valve body 11 and the lower valve body 12 are subjected to force. Under the decomposition of the force, the valve body receives an upward force. The greater the water pressure, the greater the upward decomposition force. The valve body drives the automatic pressure regulating valve stem 14 to move upward, so that the flux of the upper valve hole 9 and the lower valve hole 10 becomes larger, thereby realizing automatic pressure regulation. A manual adjustment valve stem 22 is arranged under the pressure regulating valve body 1, and the automatic pressure regulation range can be set. No electrical components are required in the pressure regulation process. The operation is simple, the use is convenient, and the cost is low.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. An automatic pressure regulating valve for sewage treatment, comprising a pressure regulating valve body (1) and an upper valve cover (6), characterized in that: An automatic pressure regulating box (7) is arranged on the upper valve cover (6) of the pressure regulating valve body (1); an upper valve hole (9) and a lower valve hole (10) are provided on the isolation inner wall of the pressure regulating valve body (1); an automatic pressure regulating valve stem (14) is inserted into the upper valve hole (9) and the lower valve hole (10); a supporting sliding seat (16) is arranged at the lower part of the pressure regulating valve body (1); a lower sliding matching hole (17) is provided in the supporting sliding seat (16); the lower end of the automatic pressure regulating valve stem (14) is inserted and installed in the lower sliding matching hole (17); the top of the automatic pressure regulating box (7) is fixed An upper sliding seat (18) is provided, an upper sliding matching hole (25) is opened in the upper sliding seat (18), the upper end of the automatic pressure regulating valve stem (14) is inserted and installed in the upper sliding matching hole (25), a spring compression plate (20) is fixedly provided outside the automatic pressure regulating valve stem (14), a pressure regulating spring (19) is provided between the spring compression plate (20) and the upper sliding seat (18), and the pressure regulating spring (19) is sleeved on the outer side of the automatic pressure regulating valve stem (14), and an upper valve body (11) and a lower valve body (12) are provided at the upper valve hole (9) and the lower valve hole (10).

2. The automatic pressure regulating valve for sewage treatment according to claim 1, characterized in that: The upper valve body (11), the lower valve body (12) and the automatic pressure regulating valve stem (14) are fixedly connected, and the outer sides of the upper valve body (11) and the lower valve body (12) are both provided with force-bearing conical surfaces (13).

3. The automatic pressure regulating valve for sewage treatment according to claim 2, characterized in that: A guide sleeve (15) is provided at the matching position between the automatic pressure regulating valve stem (14) and the upper valve cover (6); an adjusting sliding cavity (23) is provided at the lower end of the automatic pressure regulating valve stem (14); and a limiting matching end plate (24) at the upper end of the manual adjusting valve stem (22) is matched and installed in the adjusting sliding cavity (23).

4. The automatic pressure regulating valve for sewage treatment according to claim 3, characterized in that: A manual adjustment wheel (21) is fixedly provided on the outer end of the manual adjustment valve stem (22), and the manual adjustment valve stem (22) is connected to the pressure regulating valve body (1) via a fine thread.

5. The automatic pressure regulating valve for sewage treatment according to claim 4, characterized in that: One end of the pressure regulating valve body (1) is a water inlet end (2), and the other end is a water outlet end (3); the end positions of the water inlet end (2) and the water outlet end (3) are both integrally provided with connecting flanges (4); and a sealing step (5) is provided on the outer end surface of the connecting flange (4).

6. The automatic pressure regulating valve for sewage treatment according to claim 5, characterized in that: The upper valve cover (6) is connected to the pressure regulating valve body (1) via a fixing screw (8), and a matching groove is provided in the pressure regulating valve body (1) at a position directly above the upper valve body (11).

7. The automatic pressure regulating valve for sewage treatment according to claim 6, characterized in that: The upper valve body (11) is provided with three levels of force-bearing conical surfaces (13).

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