Automatic pressure regulating valve for sewage treatment
The screw and infrared beam technology of the worm gear drive screw and infrared beam are accurately adjusted, and combined with the mechanical structure of the metal diaphragm and piston rod, the problem of inaccurate pressure setting value of the existing sewage treatment automatic pressure regulating valve is solved, achieving a higher Pressure regulation accuracy and voltage regulation.
Patent Information
- Application Number
- CN202420674989.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing automatic pressure regulating valve for sewage treatment cannot achieve accurate spring adjustment when regulating pressure, resulting in poor accuracy of pressure setting values.
The worm wheel drives the screw to rotate, the screw presses the adjustment plate downward, and the adjustment plate presses the spring downward, so as to achieve the height adjustment of the spring and increase the tightening force. The propagation speed and time interval of the infrared beam are used to calculate the height value of the spring for accurate results Adjust, while when the sewage pressure exceeds the set value, the metal diaphragm and piston rod drive the valve core to move, adjust the channel area to achieve pressure stabilization.
It improves the accuracy and pressure stabilization of the pressure setting value of the pressure regulating valve, ensuring the accuracy of pressure regulation during sewage treatment.
Smart Images
Figure CN222209137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automatic pressure regulating valves for sewage treatment, in particular to an automatic pressure regulating valve for sewage treatment. Background Art
[0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for discharge into a 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. Automatic pressure regulating valves are required to control water flow pressure in sewage treatment systems.
[0003] A Chinese patent with publication number CN218761519U discloses an automatic pressure-regulating valve for sewage treatment, which includes a pressure-regulating valve body, a fixed plate fixedly connected to the top of the pressure-regulating valve body, a lower mounting plate fixedly connected to the top of the fixed plate, a support rod and an outer sleeve fixedly connected to the top of the lower mounting plate, a pressure plate fixedly installed on the output shaft of the pneumatic mechanism, a movable rod fixedly connected to the bottom of the pressure plate, springs are provided on the outer surfaces of the outer sleeve and the movable rod, a valve plate fixedly installed on the lower end of the movable rod, a movable hole with one end penetrating and extending to the inside of the pressure-regulating valve body is provided on the top of the outer sleeve, a positioning groove is provided on the inner bottom wall of the pressure-regulating valve body, and in the automatic pressure-regulating valve for sewage treatment, the pneumatic mechanism retracts the spring through the pressure plate, the movable rod moves up and down inside the movable hole, and fixes the valve plate to the inside of the positioning groove, thereby achieving the effect of conveniently adjusting the pressure when the water pressure is relatively strong.
[0004] Before regulating the sewage pressure, the existing automatic pressure regulating valve changes the tightening force of the spring by rotating the adjusting nut, thereby changing the set pressure, but the spring cannot be accurately adjusted, resulting in poor accuracy of the pressure setting value of the pressure regulating valve; therefore, an automatic pressure regulating valve for sewage treatment is proposed to address the above problem. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes an automatic pressure regulating valve for sewage treatment.
[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model is an automatic pressure regulating valve for sewage treatment, comprising a valve body, an upper valve cover is installed on the valve body by bolts, an installation box is fixedly installed on the upper valve cover, a control panel is installed on the outer wall of the installation box, a screw rod passes through the bottom plate of the installation box, a thread is provided on the bottom plate of the installation box and slides with the screw rod through the thread, a worm gear is fixedly sleeved on the screw, a worm is rotatably installed on the inner wall of the installation box by a bearing, the worm gear meshes with the worm gear, a knob is welded on one end of the worm gear, a cylindrical groove is provided on the upper valve cover, the screw rod extends into the cylindrical groove, an adjusting plate is slidably mounted in the cylindrical groove, a spring is welded on the bottom side of the adjusting plate, and a An infrared generator and an infrared receiver, the infrared generator and the infrared receiver are connected to the control panel through an internal circuit, a plate groove is opened in the upper valve cover below the cylindrical groove, a stop plate is installed in the plate groove, the stop plate is connected to the spring, and the screw is driven to rotate by the worm gear, and the screw moves vertically downward at the same time, the screw presses the adjustment plate downward, and the adjustment plate presses the spring downward, the spring is compressed, and the height of the spring is adjusted, the tightening force of the spring is increased, and the set pressure of the spring is adjusted. At the same time, the control panel calculates the height value of the spring according to the propagation speed of the infrared light beam in the air and the time interval from the infrared light beam being emitted to being received, and the spring is accurately adjusted according to the actual height value of the spring, which is beneficial to improving the accuracy of the pressure setting value of the pressure regulating valve.
[0007] Preferably, a metal diaphragm is installed in the plate groove, and the metal diaphragm is located below the stop plate. A feed pipe and a discharge pipe are connected to the valve body, and a valve seat is installed inside the valve body. A valve core is placed below the valve seat, and a piston rod is installed on the valve core, and the piston rod passes through the valve seat. A rod groove is provided on the valve body, and a piston rod passes through the rod groove. The top side of the piston rod is connected to the metal diaphragm, and a flow groove is provided inside the valve body, and the flow groove is located on one side of the discharge pipe. When the pressure of the sewage exceeds the set pressure, the sewage will push the metal diaphragm and the stop plate to move vertically upward, and the metal diaphragm drives the piston rod on the bottom side to move vertically upward, and the piston rod drives the valve core to move vertically upward, and the valve core reduces the channel area of the valve seat, thereby realizing a decrease in sewage pressure and achieving the purpose of pressure stabilization, which is beneficial to improving the pressure stability of the valve.
[0008] The utility model is beneficial in that:
[0009] 1. The utility model drives the screw to rotate through the worm gear, and at the same time the screw moves vertically downward, the screw presses the adjusting plate downward, the adjusting plate presses the spring downward, the spring is compressed, the height adjustment of the spring is realized, the fastening force of the spring is increased, and the adjustment of the set pressure of the spring is realized. At the same time, the control panel calculates the height value of the spring according to the propagation speed of the infrared light beam in the air and the time interval from the emission of the infrared light beam to the reception thereof, and accurately adjusts the spring according to the actual height value of the spring, which is beneficial to improving the accuracy of the pressure setting value of the pressure regulating valve.
[0010] 2. When the pressure of sewage passing through the utility model exceeds the set pressure, the sewage will push the metal diaphragm and the stop plate to move vertically upward, the metal diaphragm drives the piston rod on the bottom side to move vertically upward, the piston rod drives the valve core to move vertically upward, the valve core closes the channel area of the valve seat, the sewage pressure is reduced, the purpose of pressure stabilization is achieved, and it is beneficial to improve the pressure stability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;
[0013] Figure 2 It is a schematic diagram of a three-dimensional structure in a side cross-section;
[0014] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the installation box;
[0015] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the upper valve cover.
[0016] In the figure: 1. valve body; 2. upper valve cover; 3. installation box; 4. control panel; 5. screw; 6. worm gear; 7. worm; 8. knob; 9. cylindrical groove; 10. adjustment plate; 11. spring; 12. infrared generator; 13. infrared receiver; 14. plate groove; 15. stop plate; 16. metal diaphragm; 17. feed pipe; 18. valve seat; 19. valve core; 20. piston rod; 21. rod groove; 22. flow groove; 23. discharge pipe. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-4As shown, an automatic pressure regulating valve for sewage treatment includes a valve body 1, an upper valve cover 2 is installed on the valve body 1 by bolts, a mounting box 3 is fixedly installed on the upper valve cover 2, a control panel 4 is installed on the outer wall of the mounting box 3, a screw 5 passes through the bottom plate of the mounting box 3, a thread is opened on the bottom plate of the mounting box 3 and slides with the screw 5 through the thread, a worm gear 6 is fixedly sleeved on the screw 5, a worm 7 is rotatably installed on the inner wall of the mounting box 3 through a bearing, the worm 7 is meshed with the worm gear 6, a knob 8 is welded to one end of the worm 7, a cylindrical groove 9 is opened on the upper valve cover 2, the screw 5 extends into the cylindrical groove 9, an adjusting plate 10 is slidably mounted in the cylindrical groove 9, and the bottom side of the adjusting plate 10 is welded A spring 11 is connected, an infrared generator 12 and an infrared receiver 13 are installed on the lower surface of the adjustment plate 10, and the infrared generator 12 and the infrared receiver 13 are connected to the control panel 4 through an internal circuit. A plate groove 14 is opened in the upper valve cover 2 below the cylindrical groove 9, and a stop plate 15 is installed in the plate groove 14. The stop plate 15 is connected to the spring 11, and a metal diaphragm 16 is installed in the plate groove 14. The metal diaphragm 16 is located below the stop plate 15. A feed pipe 17 and a discharge pipe 23 are connected to the valve body 1, a valve seat 18 is installed inside the valve body 1, a valve core 19 is placed below the valve seat 18, a piston rod 20 is installed on the valve core 19, and the piston rod 20 passes through the valve The valve body 1 is provided with a rod groove 21, a piston rod 20 runs through the rod groove 21, the top side of the piston rod 20 is connected to the metal diaphragm 16, and a flow groove 22 is provided inside the valve body 1, and the flow groove 22 is located on one side of the discharge pipe 23; when working, the existing automatic pressure regulating valve changes the tightening force of the spring 11 by rotating the adjusting nut before adjusting the pressure of the sewage, thereby changing the set pressure, but the spring 11 cannot be accurately adjusted, resulting in poor accuracy of the pressure setting value of the pressure regulating valve. The sewage enters the valve body 1 from the feed pipe 17, passes through the valve seat 18, and is then discharged from the discharge pipe 23. During this process, the sewage will flow out from the flow groove behind the valve. 22 flows to the plate groove 14, pressing the metal diaphragm 16. When the sewage pressure exceeds the set pressure, it means that the sewage pressure is greater than the tightening force of the spring 11. The sewage will push the metal diaphragm 16 and the stop plate 15 to move vertically upward. The function of the stop plate 15 is to provide reliable support for the metal diaphragm 16 when the metal diaphragm 16 is over-pressured. The stop plate 15 pushes the spring 11 to compress the spring 11. At the same time, the metal diaphragm 16 drives the piston rod 20 on the bottom side to move vertically upward. The piston rod 20 drives the valve core 19 to move vertically upward. The valve core 19 reduces the channel area of the valve seat 18, thereby reducing the sewage pressure and achieving the purpose of pressure stabilization.
[0019] In the process of changing the set pressure, by turning the knob 8, the worm 7 is driven to rotate, and the worm 7 drives the worm wheel 6 to rotate. The structure of the worm 7 and the worm wheel 6 is self-locking. The worm wheel 6 drives the screw 5 to rotate, and at the same time, the screw 5 moves vertically downward, and the screw 5 presses the adjustment plate 10 downward, and the adjustment plate 10 presses the spring 11 downward, and the spring 11 is compressed, so that the height adjustment of the spring 11 is realized, and the fastening force of the spring 11 is increased, so that the set pressure of the spring 11 is adjusted; at the same time, the control panel 4 controls the infrared generator 12 to send an infrared beam downward, and the infrared beam is emitted after encountering the stop plate 15. The reflected infrared beam is received by the infrared receiver 13, and the infrared receiver 13 obtains the time of emission and reception of the infrared beam, and sends a signal to the control panel 4. The control panel 4 calculates the height value of the spring 11 according to the propagation speed of the infrared beam in the air and the time interval from the emission of the infrared beam to the reception of the infrared beam. The spring 11 is accurately adjusted according to the actual height value of the spring 11, which is conducive to improving the accuracy of the pressure setting value of the pressure regulating valve.
[0020] Working principle: Before the existing automatic pressure regulating valve adjusts the sewage pressure, the tightening force of the spring 11 is changed by turning the adjusting nut, thereby changing the set pressure. However, the spring 11 cannot be accurately adjusted, resulting in poor accuracy of the pressure setting value of the pressure regulating valve. The sewage enters the valve body 1 from the feed pipe 17, passes through the valve seat 18, and is then discharged from the discharge pipe 23. During this process, the sewage will flow from the flow slot 22 behind the valve to the plate slot 14, pressing the metal diaphragm 16. When the sewage pressure exceeds the set pressure, It means that the sewage pressure is greater than the tightening force of the spring 11, and the sewage will push the metal diaphragm 16 and the stop plate 15 to move vertically upward. The function of the stop plate 15 is to provide reliable support for the metal diaphragm 16 when the metal diaphragm 16 is over-pressured. The stop plate 15 pushes the spring 11 to compress the spring 11. At the same time, the metal diaphragm 16 drives the piston rod 20 on the bottom side to move vertically upward, and the piston rod 20 drives the valve core 19 to move vertically upward. The valve core 19 reduces the channel area of the valve seat 18, thereby reducing the sewage pressure and achieving pressure stabilization. purpose; in the process of changing the set pressure, by turning the knob 8, the worm 7 is driven to rotate, and the worm 7 drives the worm wheel 6 to rotate. The structure of the worm 7 and the worm wheel 6 is self-locking, and the worm wheel 6 drives the screw 5 to rotate, and at the same time the screw 5 moves vertically downward, the screw 5 presses the adjustment plate 10 downward, and the adjustment plate 10 presses the spring 11 downward, the spring 11 is compressed, and the height adjustment of the spring 11 is realized, the fastening force of the spring 11 is increased, and the set pressure of the spring 11 is adjusted; at the same time, the control panel 4 controls the infrared generator 12 to send an infrared beam downward, and the infrared beam is emitted after encountering the stop plate 15, and the reflected infrared beam is received by the infrared receiver 13, and the infrared receiver 13 obtains the time of emission and reception of the infrared beam, and sends a signal to the control panel 4, and the control panel 4 calculates the height value of the spring 11 according to the propagation speed of the infrared beam in the air and the time interval from the emission of the infrared beam to the reception of the infrared beam, and accurately adjusts the spring 11 according to the actual height value of the spring 11, which is conducive to improving the accuracy of the pressure setting value of the pressure regulating valve.
[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. An automatic pressure regulating valve for sewage treatment, Features : It comprises a valve body (1), an upper valve cover (2) is installed on the valve body (1) by bolts, an installation box (3) is fixedly installed on the upper valve cover (2), a control panel (4) is installed on the outer wall of the installation box (3), a screw rod (5) passes through the bottom plate of the installation box (3), a thread is provided on the bottom plate of the installation box (3) and the thread cooperates with the screw rod (5) to slide, a worm wheel (6) is fixedly sleeved on the screw rod (5), a worm (7) is rotatably installed on the inner wall of the installation box (3) by a bearing, the worm (7) is meshed with the worm wheel (6), a knob (8) is welded on one end of the worm (7), and the upper valve cover (2) is provided with a plurality of screw rods (5). A cylindrical groove (9) is provided on the upper part, and the screw rod (5) extends into the cylindrical groove (9). An adjusting plate (10) is slidably mounted in the cylindrical groove (9). A spring (11) is welded on the bottom side of the adjusting plate (10). An infrared generator (12) and an infrared receiver (13) are mounted on the lower surface of the adjusting plate (10). The infrared generator (12) and the infrared receiver (13) are connected to the control panel (4) through an internal circuit. A plate groove (14) is provided in the upper valve cover (2) below the cylindrical groove (9). A stop plate (15) is mounted in the plate groove (14), and the stop plate (15) is connected to the spring (11).
2. An automatic pressure regulating valve for sewage treatment according to claim 1, Features: A metal diaphragm (16) is installed in the plate groove (14), and the metal diaphragm (16) is located below the stop plate (15).
3. The automatic pressure regulating valve for sewage treatment according to claim 1, Features: The valve body (1) is connected to a feed pipe (17) and a discharge pipe (23), and a valve seat (18) is installed inside the valve body (1).
4. An automatic pressure regulating valve for sewage treatment according to claim 3, Features: A valve core (19) is placed below the valve seat (18), a piston rod (20) is mounted on the valve core (19), and the piston rod (20) passes through the valve seat (18).
5. The automatic pressure regulating valve for sewage treatment according to claim 1, Features: The valve body (1) is provided with a rod groove (21), a piston rod (20) passes through the rod groove (21), and the top side of the piston rod (20) is connected to the metal diaphragm (16).
6. The automatic pressure regulating valve for sewage treatment according to claim 1, Features: A circulation groove (22) is provided inside the valve body (1), and the circulation groove (22) is located on one side of the discharge pipe (23).