Continuous blowdown regulating valve

Abstract

The invention discloses a continuous blowdown regulating valve, and belongs to the technical field of regulating valves, the continuous blowdown regulating valve comprises a regulating valve shell, the bottom of the regulating valve shell is fixedly connected with a bottom collecting mechanism, and the top of the regulating valve shell is provided with a top connecting mechanism; an integrated limiting ring is fixedly connected to the center of the inner wall of the adjusting valve shell, a sealing adjusting mechanism is installed on the longitudinal coaxial line between the bottom collecting mechanism and the top connecting mechanism, a manual adjusting mechanism is fixedly connected to the outer wall of the sealing adjusting mechanism, and an adjusting air chamber mechanism is installed at the top of the manual adjusting mechanism; and a connecting adjusting rod mechanism is mounted between the top of the sealing adjusting mechanism and the air chamber adjusting mechanism. By designing the bottom collecting mechanism, particles are automatically filtered and cleaned, the sewage discharge continuity is not affected as much as possible, the particles in the regulating valve are reduced, and the service life of the regulating valve is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of regulating valves, and particularly relates to a continuous blowdown regulating valve. Background Art

[0002] A regulating valve is a device used to control the flow rate, pressure, or flow direction of a fluid. It can adjust the opening degree of the valve according to needs, thereby precisely controlling the amount or pressure of the fluid passing through the pipeline. A regulating valve usually consists of components such as a valve body, a valve core, a valve seat, a valve stem, and an actuator, and is used for fluid control and adjustment operations in industries, buildings, manufacturing, etc. During application, according to the control signal in the automation system, it automatically adjusts the opening degree of the valve, thereby realizing the adjustment of the medium flow rate, pressure, temperature, and liquid level. During blowdown, the regulating valve can adjust the fluid flow rate in the blowdown pipeline and the pressure. Especially when it is necessary to maintain a certain pressure of the blowdown liquid or gas in the pipeline, the regulating valve can be used to adjust the pressure in the pipeline to ensure the stable operation of the system. At the same time, the regulating valve can also adjust the flow velocity of the fluid passing through the pipeline, and some blowdown systems use the regulating valve to prevent sewage backflow or control the discharge direction.

[0003] During the continuous blowdown process of the existing blowdown regulating valve, since the sewage contains a large amount of impurities and particles, even after being filtered by a filtering structure, there will still be a certain amount of particles in the sewage. During the operation of the regulating valve, the particles will remain inside the regulating valve, thereby affecting the working effect of the regulating valve. For example, when the particles remain at the sealing port, it will affect the sealing effect inside the regulating valve. Moreover, during the continuous blowdown process, it is impossible to quickly handle the particles. At the same time, in some existing regulating valves, such as the manual adjustment part in a pneumatic regulating valve, is often designed on the pneumatic actuator. When a failure occurs in the pneumatic actuator or the air chamber at the top, the manual adjustment part cannot be adjusted either. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a continuous blowdown regulating valve.

[0005] The technical solution adopted to solve the above technical problem is: to provide a continuous blowdown regulating valve, including a regulating valve housing, a bottom collection mechanism is fixedly connected to the bottom of the regulating valve housing, and a top connection mechanism is arranged at the top of the regulating valve housing; An integrated limiting ring is fixedly connected to the center of the inner wall of the regulating valve housing, a sealing and adjusting mechanism is installed on the longitudinal coaxial core between the bottom collection mechanism and the top connection mechanism, and a manual adjustment mechanism is fixedly connected to the outer wall of the sealing and adjusting mechanism; The top of the manual adjustment mechanism is equipped with an adjustment air chamber mechanism. A connecting adjustment rod mechanism is installed between the top of the sealing adjustment mechanism and the adjustment air chamber mechanism. A pneumatic actuator assembly is installed between one side of the manual adjustment mechanism and the adjustment air chamber mechanism.

[0006] Furthermore, the bottom collection mechanism includes an integral connecting sleeve fixedly connected to the bottom of the regulating valve housing. A first rubber gasket is arranged at the bottom of the integral connecting sleeve. A collection hopper is arranged at the bottom of the first rubber gasket. A plurality of first bolt assemblies are installed through the integral connecting sleeve, the first rubber gasket and the collection hopper. A solenoid valve is installed at the bottom of the collection hopper.

[0007] Through the above technical solution, after the sewage discharge stops for a period of time and the pneumatic actuator assembly is started again to carry out sewage discharge, the water flow carries the precipitated particles into the collection hopper, and then the precipitated particles are filled into the interior of the collection hopper. At the same time, the air in the collection hopper is squeezed out and output from the top. When the sewage discharge stops subsequently, opening the solenoid valve can discharge the sewage and particles in the collection hopper, realizing automatic filtration and cleaning of the particles and minimizing the impact on the continuity of sewage discharge.

[0008] Furthermore, the top connection mechanism includes a sealing cushion block and an upper valve cover installed on the top of the regulating valve housing. A sealing layer is fixedly connected to the inner wall of the sealing cushion block. A plurality of second bolt assemblies are installed between the regulating valve housing and the upper valve cover. A sealing packing is installed on the inner wall of the upper valve cover. A plugging top cover is installed on the top of the upper valve cover. A plurality of third bolt assemblies are installed between the upper valve cover and the plugging top cover. A second rubber gasket is installed between the regulating valve housing and the upper valve cover.

[0009] Through the above technical solution, during the ascending and descending process of the sealing adjustment mechanism, the sealing of the sealing adjustment mechanism and the top connection mechanism can be achieved through the sealing cushion block, the sealing layer and the sealing packing, avoiding sewage overflow.

[0010] Furthermore, the sealing adjustment mechanism includes a central valve stem. A valve core thread cover is fixedly connected to the center of the outer wall of the central valve stem. A first sealing ring is sleeved at the bottom of the valve core thread cover. A filter sleeve is spirally connected to the bottom of the valve core thread cover. A bottom sealing head is spirally connected to the bottom of the central valve stem. A second sealing ring is sleeved at the bottom of the bottom sealing head. An extension thin rod is fixedly connected to the top of the central valve stem. A manual adjustment head is fixedly connected to the top of the extension thin rod.

[0011] Through the above technical solution, when the sealing adjustment mechanism rises, the valve core thread cover and the integrated limit ring are separated, and sewage enters from the filter sleeve at the bottom of the integrated limit ring, flows out from the filter sleeve at the top of the integrated limit ring after passing through the inside of the filter sleeve. Particles in the sewage will be filtered twice by the filter sleeve. Most of the particles will remain at the bottom, and a very small part will remain inside the filter sleeve. At the same time, the sewage discharge volume can be controlled by controlling the rising height of the filter sleeve. After a period of sewage discharge, the pneumatic actuator assembly drives the connection adjusting rod mechanism and the sealing adjustment mechanism to reset and seal. At this time, the sewage on the inlet side of the regulating valve housing tends to be stable, and the particles filtered outside the filter sleeve will gradually precipitate between the integrated connecting sleeve and the bottom sealing head.

[0012] Furthermore, the manual adjustment mechanism includes a support sleeve shell fixedly connected to the outer wall of the top connection mechanism. On one side of the inner wall of the support sleeve shell, a fixed support sleeve is installed. A sliding thread sleeve is slidably connected to the inner wall of the fixed support sleeve. On one side of the central sleeve of the fixed support sleeve, an extended limit sleeve is fixedly connected. On the outer wall of the support sleeve shell, close to one side of the fixed support sleeve, a fixed thread sleeve is fixedly connected. An extrusion threaded rod is arranged between the fixed thread sleeve and the extended limit sleeve.

[0013] Through the above technical solution, when there is air leakage in the regulating air chamber mechanism or the pneumatic actuator assembly fails, etc., rotate the extrusion threaded rod so that the extrusion threaded rod slides in the extended limit sleeve and presses the sliding thread sleeve at the other end. At this time, the fixing of the sliding thread sleeve is completed. Use a wrench to drive the manual adjustment head, and then drive the overall sealing adjustment mechanism and the connection adjusting rod mechanism to rotate, and realize the up and down adjustment of the sealing adjustment mechanism through the spiral structure of the threaded column and the sliding thread sleeve, so as to close or open the valve. More stable manual control can be achieved through the mechanical structure to avoid accidents.

[0014] Furthermore, one side of the sliding thread sleeve is a flat structure, and the inner wall of the sleeve of the fixed support sleeve and the outer wall of the sliding thread sleeve are mutually attached.

[0015] Through the above technical solution, the flat structure of the sliding thread sleeve ensures that when manually driven, one end of the extrusion threaded rod can fit the flat surface of the sliding thread sleeve, thereby increasing the contact area to improve the friction force.

[0016] ]Furthermore, the regulating air chamber mechanism includes a lower membrane cover installed on the top of the manual adjustment mechanism. Fourth bolt assemblies are installed between both sides of the lower membrane cover and the manual adjustment mechanism. A rubber membrane is fixedly connected to the top of the lower membrane cover. An upper membrane cover is arranged on the top of the rubber membrane. A fifth bolt assembly is installed through the lower membrane cover, the rubber membrane and the upper membrane cover. Springs are fixedly connected to both sides of the inner surface of the bottom of the lower membrane cover.

[0017] Through the above technical solution, when sewage discharge is required, the pneumatic actuator assembly extracts the air between the rubber diaphragm and the upper membrane cover, thereby pulling the rubber diaphragm upward, driving the sealing adjustment mechanism and the connecting adjustment rod mechanism to rise and release the seal to achieve sewage discharge operation. When sealing is required, the pneumatic actuator assembly fills the air between the rubber diaphragm and the upper membrane cover, thereby pushing the rubber diaphragm, the connecting adjustment rod mechanism and the sealing adjustment mechanism to reset to achieve sealing.

[0018] Further, the connecting adjustment rod mechanism includes an extension rod, a threaded column is fixedly connected to the bottom of the extension rod, a metal cover is fixedly connected to the top of the extension rod, and a nut sleeve is screwed to the top of the metal cover.

[0019] Through the above technical solution, when the sliding thread sleeve is fixed, the threaded column and the sliding thread sleeve can rise and fall in a spiral manner through the threaded column. The contact area with the rubber diaphragm can be effectively increased through the metal cover and the nut sleeve, thereby avoiding damage to the rubber diaphragm.

[0020] The beneficial effects of the present invention are as follows: (1) By designing the bottom collection mechanism of the present invention, after a period of sewage discharge, the connecting adjustment rod mechanism and the sealing adjustment mechanism are reset to complete the sealing. At this time, the sewage on the inlet side of the regulating valve housing tends to be stable, and the filtered particles outside the filter sleeve will gradually settle between the integrated connecting sleeve and the bottom sealing head. Open the solenoid valve to drain water. After a period of time, the pneumatic actuator assembly controls the sealing adjustment mechanism to rise again. At the moment when the bottom sealing head releases the seal, the water flow flushes into the collection hopper, thereby filling the precipitated particles into the collection hopper. Then the regulating valve starts to continue sewage discharge. When the sewage discharge is stopped and sealed later, opening the solenoid valve can discharge the sewage and particles in the collection hopper, realizing automatic filtration and cleaning of the particles, and minimizing the impact on the continuity of sewage discharge as much as possible, reducing the particles inside the regulating valve, and improving the service life of the regulating valve; (2) By designing the manual adjustment mechanism of the present invention, when there is air leakage in the regulating air chamber mechanism or the pneumatic actuator assembly fails, rotate the extrusion threaded rod and then squeeze the sliding thread sleeve at the other end. At this time, the fixing of the sliding thread sleeve is completed. Use a wrench to drive the manual adjustment head, thereby driving the entire sealing adjustment mechanism and the connecting adjustment rod mechanism to rotate, and realizing the up and down adjustment of the sealing adjustment mechanism through the spiral structure of the threaded column and the sliding thread sleeve, so as to close or open the valve. More stable manual control can be achieved through the mechanical structure to avoid accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional structural schematic diagram of the present invention; Figure 3It is a schematic diagram of the three-dimensional sectional structure of the present invention; Figure 4 It is Figure 3 The partial enlarged view of the place A in Figure 5 It is a schematic diagram of a partial structure of the bottom collection mechanism of the present invention; Figure 6 It is Figure 3 The partial enlarged view of the place B in Figure 7 It is a schematic diagram of the three-dimensional sectional structure of the regulating valve housing and the top connection mechanism of the present invention; Figure 8 It is an exploded structure diagram of the sealing adjustment mechanism connecting the adjusting rod mechanism of the present invention; Figure 9 It is an exploded structure diagram of the manual adjustment mechanism of the present invention; Figure 10 It is Figure 2 The partial enlarged view of the place C in

[0022] Reference numerals: 1, regulating valve housing; 2, bottom collection mechanism; 201, integrated connection sleeve; 202, first rubber gasket; 203, collection hopper; 204, first bolt assembly; 205, solenoid valve; 3, top connection mechanism; 301, sealing cushion block; 302, sealing layer; 303, upper valve cover; 304, second bolt assembly; 305, sealing packing; 306, plugging top cover; 307, third bolt assembly; 308, second rubber gasket; 4, integrated limit ring; 5, sealing adjustment mechanism; 501, central valve stem; 502, valve core thread cover; 503, first sealing ring; 504, filter sleeve; 505, bottom sealing head; 506, second sealing ring; 507, extended thin rod; 508, manual adjustment head; 6, manual adjustment mechanism; 601, support sleeve housing; 602, fixed support sleeve; 603, sliding thread sleeve; 604, extended limit sleeve; 605, fixed thread sleeve; 606, extrusion threaded rod; 7, regulating air chamber mechanism; 701, lower film cover; 702, fourth bolt assembly; 703, rubber diaphragm; 704, upper film cover; 705, fifth bolt assembly; 706, spring; 8, connecting adjusting rod mechanism; 801, extended rod; 802, threaded column; 803, metal cover; 804, nut sleeve gasket; 9, pneumatic actuator assembly. Detailed implementation manners

[0023] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] As Figures 1 - 5As shown in the figure, a continuous blowdown regulating valve of this embodiment includes a regulating valve housing 1. A bottom collecting mechanism 2 is fixedly connected to the bottom of the regulating valve housing 1. The bottom collecting mechanism 2 includes an integral connecting sleeve 201 fixedly connected to the bottom of the regulating valve housing 1. A first rubber gasket 202 is arranged at the bottom of the integral connecting sleeve 201. A collecting hopper 203 is arranged at the bottom of the first rubber gasket 202. A plurality of first bolt assemblies 204 are installed through the integral connecting sleeve 201, the first rubber gasket 202 and the collecting hopper 203. An electromagnetic valve 205 is installed at the bottom of the collecting hopper 203. After the blowdown stops for a period of time and the pneumatic actuator assembly 9 is started again for blowdown, the water flow carries the precipitated particles into the collecting hopper 203, and then the precipitated particles are filled into the interior of the collecting hopper 203. At the same time, the air in the collecting hopper 203 is extruded and output from the top. When the blowdown stops subsequently, opening the electromagnetic valve 205 can discharge the sewage and particles in the collecting hopper 203, realizing automatic filtration and cleaning of the particles.

[0025] As Figures 1 - 7 As shown in the figure, a top connecting mechanism 3 is arranged at the top of the regulating valve housing 1. The top connecting mechanism 3 includes a sealing cushion block 301 and an upper valve cover 303 installed at the top of the regulating valve housing 1. A sealing layer 302 is fixedly connected to the inner wall of the sealing cushion block 301. A plurality of second bolt assemblies 304 are installed between the regulating valve housing 1 and the upper valve cover 303. A sealing packing 305 is installed on the inner wall of the upper valve cover 303. A plugging top cover 306 is installed at the top of the upper valve cover 303. A plurality of third bolt assemblies 307 are installed between the upper valve cover 303 and the plugging top cover 306. A second rubber gasket 308 is installed between the regulating valve housing 1 and the upper valve cover 303. During the ascending and descending process of the sealing adjustment mechanism 5, the sealing of the sealing adjustment mechanism 5 and the top connecting mechanism 3 can be realized through the sealing cushion block 301, the sealing layer 302 and the sealing packing 305, avoiding sewage overflow.

[0026] As Figures 1 - 8As shown, an integrated limiting ring 4 is fixedly connected to the center of the inner wall of the regulating valve housing 1, and a sealing adjustment mechanism 5 is installed on the longitudinal coaxial core between the bottom collecting mechanism 2 and the top connecting mechanism 3. The sealing adjustment mechanism 5 includes a central valve stem 501, a valve core threaded cover 502 is fixedly connected to the center of the outer wall of the central valve stem 501, a first sealing ring 503 is sleeved on the bottom of the valve core threaded cover 502, a filter sleeve 504 is spirally connected to the bottom of the valve core threaded cover 502, a bottom sealing head 505 is spirally connected to the bottom of the central valve stem 501, a second sealing ring 506 is sleeved on the bottom of the bottom sealing head 505, an extension rod 507 is fixedly connected to the top of the extension rod 507, and a manual adjustment head 508 is fixedly connected to the top of the extension rod 507. When the sealing adjustment mechanism 5 rises, The valve core threaded cover 502 and the integrated limit ring 4 are separated, and the sewage enters from the filter sleeve 504 at the bottom of the integrated limit ring 4, passes through the inside of the filter sleeve 504 and flows out from the filter sleeve 504 at the top of the integrated limit ring 4. The particles in the sewage will be filtered twice by the filter sleeve 504, most of which will remain at the bottom and very few will remain inside the filter sleeve 504. At the same time, the sewage discharge volume can be controlled by controlling the rising height of the filter sleeve 504. After a period of sewage discharge, the pneumatic actuator 9 drives the connecting adjustment rod mechanism 8 and the sealing adjustment mechanism 5 to achieve reset sealing. At this time, the sewage on the inlet side of the regulating valve housing 1 tends to be stable, and the particles filtered outside the filter sleeve 504 will gradually settle between the integrated connecting sleeve 201 and the bottom sealing head 505.

[0027] like Figures 1 - 9As shown, a manual adjustment mechanism 6 is fixedly connected to the outer wall of the seal adjustment mechanism 5. The manual adjustment mechanism 6 includes a support sleeve housing 601 fixedly connected to the outer wall of the top connection mechanism 3. On one side of the inner wall of the support sleeve housing 601, a fixed support sleeve 602 is installed. A sliding threaded sleeve 603 is slidably connected to the inner wall of the fixed support sleeve 602. On one side of the central sleeve of the fixed support sleeve 602, an extended limit sleeve 604 is fixedly connected. On the side of the outer wall of the support sleeve housing 601 close to the fixed support sleeve 602, a fixed threaded sleeve 605 is fixedly connected. An extrusion threaded rod 606 is arranged between the fixed threaded sleeve 605 and the extended limit sleeve 604. When there is air leakage in the adjustment air chamber mechanism 7 or a failure occurs in the pneumatic actuator assembly 9, etc., the extrusion threaded rod 606 is rotated, so that the extrusion threaded rod 606 slides in the extended limit sleeve 604 and presses the sliding threaded sleeve 603 at the other end. At this time, the fixation of the sliding threaded sleeve 603 is completed. A wrench is used to drive the manual adjustment head 508, thereby driving the entire seal adjustment mechanism 5 and the connection adjustment rod mechanism 8 to rotate, and realizing the up and down adjustment of the seal adjustment mechanism 5 through the spiral structure of the threaded column 802 and the sliding threaded sleeve 603, so as to close or open the valve. More stable manual control can be achieved through the mechanical structure to avoid accidents. One side of the sliding threaded sleeve 603 is a planar structure, and the inner wall of the sleeve of the fixed support sleeve 602 and the outer wall of the sliding threaded sleeve 603 are in mutual contact. The planar structure of the sliding threaded sleeve 603 ensures that one end of the extrusion threaded rod 606 can fit the plane of the sliding threaded sleeve 603 during manual driving, thereby increasing the contact area to improve the friction force.

[0028] As Figures 1 - 10As shown, an adjusting air chamber mechanism 7 is installed on the top of the manual adjusting mechanism 6, and the adjusting air chamber mechanism 7 includes a lower diaphragm cover 701 installed on the top of the manual adjusting mechanism 6, and a fourth bolt assembly 702 is installed between the lower diaphragm cover 701 and both sides of the manual adjusting mechanism 6, and a rubber diaphragm 703 is fixedly connected to the top of the lower diaphragm cover 701, and an upper diaphragm cover 704 is provided on the top of the rubber diaphragm 703. A fifth bolt assembly 705 is installed through the lower diaphragm cover 701, the rubber diaphragm 703 and the upper diaphragm cover 704, and springs 706 are fixedly connected on both sides of the bottom inner surface of the lower diaphragm cover 701. When sewage needs to be discharged, the air between the rubber diaphragm 703 and the upper diaphragm cover 704 is extracted by the pneumatic actuator 9, thereby pulling the rubber diaphragm 703 up, driving the sealing adjustment mechanism 5 and the connecting adjusting rod mechanism 8 to rise to release the seal and realize sewage discharge operation. When sealing is required, the rubber diaphragm 703 and the upper diaphragm cover are sealed by the pneumatic actuator 9. Air is filled between 704, thereby pushing the rubber diaphragm 703, the connecting adjusting rod mechanism 8 and the sealing adjusting mechanism 5 to reset and achieve sealing. A connecting adjusting rod mechanism 8 is installed between the top of the sealing adjusting mechanism 5 and the adjusting air chamber mechanism 7. The connecting adjusting rod mechanism 8 includes an extension rod 801, and the bottom of the extension rod 801 is fixedly connected with a threaded column 802, and the top of the extension rod 801 is fixedly connected with a metal cover 803, and the top of the metal cover 803 is spirally connected with a nut sleeve gasket 804. The threaded column 802 can be used to achieve the rise and fall of the threaded column 802 in a spiral manner when the sliding threaded sleeve 603 is fixed. The metal cover 803 and the nut sleeve gasket 804 can effectively increase the contact area with the rubber diaphragm 703, thereby avoiding damage to the rubber diaphragm 703. A pneumatic actuator 9 is installed between one side of the manual adjusting mechanism 6 and the adjusting air chamber mechanism 7.

[0029] The working principle of this embodiment is as follows: when in use, filtered sewage will flow into one end of the regulating valve housing 1 and fill the cavity on one side of the regulating valve housing 1. When sewage needs to be discharged, the air between the rubber diaphragm 703 and the upper diaphragm cover 704 is extracted by the pneumatic actuator 9, thereby pulling the rubber diaphragm 703 up, and the rubber diaphragm 703 drives the metal cover 803 and the nut sleeve gasket 804 to rise, thereby realizing the overall sealing adjustment mechanism 5 to rise through the extension rod 801 and the threaded column 802. At this time, the valve core threaded cover 502 and the integrated limit ring 4 are separated, and sewage enters from the filter sleeve 504 at the bottom of the integrated limit ring 4, passes through the filter sleeve 504, and then flows out from the filter sleeve 504 at the top of the integrated limit ring 4. The particles in the sewage will be filtered twice by the filter sleeve 504, of which most of the particles will remain at the bottom and a very small part will remain inside the filter sleeve 504. At the same time, the sewage discharge amount can be controlled by controlling the rising height of the filter sleeve 504. After a period of sewage discharge, air is filled between the rubber diaphragm 703 and the upper diaphragm cover 704 through the pneumatic actuator assembly 9, thereby pushing the rubber diaphragm 703, the connecting adjusting rod mechanism 8 and the sealing adjusting mechanism 5 to reset. At this time, the valve core thread cover 502 is sealed through the first sealing ring 503 and the integral limit ring 4. At the same time, the bottom sealing head 505 is sealed through the second sealing ring 506 and the integral connecting sleeve 201. At this time, the sewage on the inlet side of the regulating valve housing 1 tends to be stable, and the filtered particles outside the filter sleeve 504 will gradually precipitate between the integral connecting sleeve 201 and the bottom sealing head 505. At this time, the solenoid valve 205 is opened to drain water. After a period of time, the pneumatic actuator assembly 9 controls the sealing adjusting mechanism 5 to rise again. At the moment when the bottom sealing head 505 is unsealed, the water flow rushes into the collection hopper 203, thereby filling the precipitated particles into the interior of the collection hopper 203. At the same time, the air in the collection hopper 203 is squeezed out and output from the top. Then the regulating valve starts to continue sewage discharge. When sewage discharge stops subsequently, opening the solenoid valve 205 can drain the sewage and particles in the collection hopper 203; When air leakage occurs in the regulating air chamber mechanism 7 or a failure occurs in the pneumatic actuator assembly 9, etc., rotate the extrusion screw rod 606 so that the extrusion screw rod 606 slides in the extension limit sleeve 604 and squeezes the sliding thread sleeve 603 at the other end. At this time, the fixing of the sliding thread sleeve 603 is completed. Use a wrench to drive the manual adjusting head 508, thereby driving the overall sealing adjusting mechanism 5 and the connecting adjusting rod mechanism 8 to rotate, and realizing the up and down adjustment of the sealing adjusting mechanism 5 through the spiral structure of the threaded column 802 and the sliding thread sleeve 603, so as to close or open the valve. More stable manual control can be achieved through the mechanical structure to avoid accidents.

[0030] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A continuous blowdown regulating valve, comprising a regulating valve housing (1), characterized in that: The bottom of the regulating valve housing (1) is fixedly connected with a bottom collecting mechanism (2), and the top of the regulating valve housing (1) is provided with a top connecting mechanism (3); The center of the inner wall of the regulating valve housing (1) is fixedly connected with an integral limiting ring (4). A sealing and regulating mechanism (5) is installed on the longitudinal coaxial line between the bottom collecting mechanism (2) and the top connecting mechanism (3), and the outer wall of the sealing and regulating mechanism (5) is fixedly connected with a manual regulating mechanism (6); The top of the manual regulating mechanism (6) is installed with a regulating air chamber mechanism (7). A connecting and regulating rod mechanism (8) is installed between the top of the sealing and regulating mechanism (5) and the regulating air chamber mechanism (7), and a pneumatic actuator assembly (9) is installed between one side of the manual regulating mechanism (6) and the regulating air chamber mechanism (7).

2. The continuous blowdown regulating valve according to claim 1, wherein The bottom collecting mechanism (2) includes an integral connecting sleeve (201) fixedly connected to the bottom of the regulating valve housing (1). A first rubber gasket (202) is arranged at the bottom of the integral connecting sleeve (201). A collecting hopper (203) is arranged at the bottom of the first rubber gasket (202). A plurality of first bolt assemblies (204) are installed through the integral connecting sleeve (201), the first rubber gasket (202) and the collecting hopper (203). A solenoid valve (205) is installed at the bottom of the collecting hopper (203).

3. The continuous blowdown regulating valve according to claim 1, characterized in that, The top connecting mechanism (3) includes a sealing cushion block (301) and an upper valve cover (303) installed on the top of the regulating valve housing (1). A sealing layer (302) is fixedly connected to the inner wall of the sealing cushion block (301). A plurality of second bolt assemblies (304) are installed between the regulating valve housing (1) and the upper valve cover (303). A sealing packing (305) is installed on the inner wall of the upper valve cover (303). A plugging top cover (306) is installed on the top of the upper valve cover (303). A plurality of third bolt assemblies (307) are installed between the upper valve cover (303) and the plugging top cover (306). A second rubber gasket (308) is installed between the regulating valve housing (1) and the upper valve cover (303).

4. The continuous blowdown regulating valve according to claim 1, wherein The sealing and regulating mechanism (5) includes a central valve stem (501). A valve core thread cover (502) is fixedly connected to the center of the outer wall of the central valve stem (501). A first sealing ring (503) is sleeved at the bottom of the valve core thread cover (502). A filter sleeve (504) is screwed to the bottom of the valve core thread cover (502). A bottom sealing head (505) is screwed to the bottom of the central valve stem (501). A second sealing ring (506) is sleeved at the bottom of the bottom sealing head (505). An extension thin rod (507) is fixedly connected to the top of the central valve stem (501). A manual regulating head (508) is fixedly connected to the top of the extension thin rod (507).

5. The continuous blowdown regulating valve according to claim 1, characterized in that, The manual adjustment mechanism (6) includes a support sleeve housing (601) fixedly connected to the outer wall of the top connection mechanism (3). On one side of the inner wall of the support sleeve housing (601), a fixed support sleeve (602) is installed. A sliding thread sleeve (603) is slidably connected to the inner wall of the fixed support sleeve (602). On one side of the central sleeve of the fixed support sleeve (602), an extended limit sleeve (604) is fixedly connected. On the outer wall of the support sleeve housing (601) and on the side close to the fixed support sleeve (602), a fixed thread sleeve (605) is fixedly connected. An extrusion threaded rod (606) is arranged between the fixed thread sleeve (605) and the extended limit sleeve (604).

6. The continuous blowdown regulating valve according to claim 5, characterized in that, One side of the sliding thread sleeve (603) is a planar structure, and the inner wall of the sleeve of the fixed support sleeve (602) and the outer wall of the sliding thread sleeve (603) are mutually attached.

7. The continuous blowdown regulating valve according to claim 1, characterized in that The adjustment air chamber mechanism (7) includes a lower membrane cover (701) installed on the top of the manual adjustment mechanism (6). Fourth bolt assemblies (702) are installed between the two sides of the lower membrane cover (701) and the manual adjustment mechanism (6). A rubber membrane (703) is fixedly connected to the top of the lower membrane cover (701). An upper membrane cover (704) is arranged on the top of the rubber membrane (703). A fifth bolt assembly (705) is installed through the lower membrane cover (701), the rubber membrane (703) and the upper membrane cover (704). Springs (706) are fixedly connected to both sides of the inner surface of the bottom of the lower membrane cover (701).

8. The continuous blowdown regulating valve according to claim 1, wherein The connection adjustment rod mechanism (8) includes an extension rod (801). A threaded column (802) is fixedly connected to the bottom of the extension rod (801). A metal cover (803) is fixedly connected to the top of the extension rod (801). A nut sleeve gasket (804) is screwed on the top of the metal cover (803).

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