CN112032561A - Ultramicro-pressure self-operated pressure regulating valve - Google Patents
Ultramicro-pressure self-operated pressure regulating valve Download PDFInfo
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- CN112032561A CN112032561A CN202010836404.XA CN202010836404A CN112032561A CN 112032561 A CN112032561 A CN 112032561A CN 202010836404 A CN202010836404 A CN 202010836404A CN 112032561 A CN112032561 A CN 112032561A
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- filter screen
- box
- pressure
- fixedly connected
- adjusting pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an ultra-micro pressure self-operated pressure regulating valve which comprises a filter box, wherein the upper end of the filter box is fixedly communicated with a buffer tank, the buffer tank is fixedly communicated with a constant pressure box through an elastic pipe, an inner side surface of the constant pressure box is fixedly connected with an adjusting pipe, the elastic pipe penetrates through the side surface of the constant pressure box and is fixedly communicated with the side surface of the adjusting pipe, a matched piston is arranged in the adjusting pipe, and one inner side surface of the adjusting pipe is fixedly connected with two telescopic mechanisms which are arranged in parallel. When the valve is used, the piston is pushed to slowly move rightwards along with the increase of the pressure in the adjusting pipe, the first spring is extruded, the telescopic mechanism is contracted, and when the piston moves to the position of the communicating pipe, the communicating pipe is communicated with the left end of the adjusting pipe, so that the speed of increasing the internal pressure of the pipeline is reduced, the problem that the internal pressure of the pipeline is too fast to damage a mechanism in the valve is solved, the constant internal pressure of the pipeline is ensured, and the stability of the whole device is improved.
Description
Technical Field
The invention relates to the technical field of regulating valves, in particular to an ultra-micro pressure self-operated pressure regulating valve.
Background
The existing self-operated pressure regulating valve does not need any external energy to control the pressure of general gas and liquid medium, and utilizes the pressure in the pipeline to regulate the flow rate of liquid, so that the pressure in the pipeline controlled by the existing self-operated pressure regulating valve is weak and weak, and the controllability is very poor.
The patent discloses an ultramicro pressure self-operated pressure regulating valve (notice No. CN208778789U), includes the under casing, the top surface fixed mounting of under casing has the valve body, the bottom surface fixed mounting of under casing has the pipe, the left end fixed mounting of under casing has the rose box, the bottom fixed mounting of valve body inner chamber has the bottom plate, the fixed cover of inner chamber of valve body is equipped with the valve rod, the valve rod extends to the inner chamber and the fixed mounting of under casing has the case, the bottom of case extends to the inner chamber of pipe, the outside movable sleeve of valve rod is equipped with the bearing plate. According to the ultramicro-pressure self-operated pressure regulating valve, the movable box is used as the buffer box, so that the movable box slowly moves rightwards, and then the piston is pushed open through the ejector rod, so that the speed of increasing the pressure inside the pipeline is reduced, the problem that the internal pressure becomes too fast to damage a valve internal mechanism is solved, the constant pressure inside the pipeline is ensured, and the stability of the device is improved; however, in practical use, as the pressure increases, the moving box of the device cannot move to the right, so that the rate of increase of the pressure in the pipeline cannot be slowed down.
In addition, when the ultramicro-pressure self-operated pressure regulating valve is connected to a sewage conveying pipeline, impurities such as rice grains and vegetable leaves exist in sewage, partial particles still exist after the impurities are subjected to primary filtration, and the particles often easily cause the problem that the whole sewage treatment equipment is blocked and cannot normally operate for a long time when passing through subsequent sewage treatment equipment, and meanwhile, the problem also occurs in the pressure regulating valve, and the problem also needs to be solved urgently.
Therefore, an ultra-micro pressure self-operated pressure regulating valve is provided.
Disclosure of Invention
The invention aims to provide an ultra-micro pressure self-operated pressure regulating valve, when in use, a piston is pushed to slowly move rightwards along with the increase of the pressure in a regulating pipe, a first spring is extruded to enable a telescopic mechanism to contract, and when the piston moves to the position of a communicating pipe, the communicating pipe is communicated with the left end of the regulating pipe, so that the speed of increasing the pressure inside a pipeline is reduced, the problem that the internal pressure becomes too fast to damage a mechanism inside the valve is avoided, the constant pressure inside the pipeline is ensured, the integral stability of the device is increased, and the partial problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: an ultra-micro pressure self-operated pressure regulating valve comprises a filter box, wherein the upper end of the filter box is fixedly communicated with a buffer tank, the buffer tank is fixedly communicated with a constant pressure box through an elastic pipe, an inner side surface of the constant pressure box is fixedly connected with a regulating pipe, the elastic pipe penetrates through the side surface of the constant pressure box and is fixedly communicated with the side surface of the regulating pipe, a matched piston is arranged in the regulating pipe, an inner side surface of the regulating pipe is fixedly connected with two telescopic mechanisms which are arranged in parallel, one end of each telescopic mechanism is fixedly connected with one side surface of the piston, each telescopic mechanism is sleeved with a spring I, the outer side surface of the regulating pipe is fixedly communicated with a plurality of communicating pipes, one side surface of the constant pressure box is communicated with an executing device through a pressure guide pipe, the lower surface of the executing device is provided with a valve body, a valve rod is sleeved in the valve body, a bottom box is fixedly arranged on one side surface of the, the valve rod is sleeved with a bearing plate, and the inner bottom fixing plate of the valve body is connected with a bottom plate.
When the valve is used, the piston is pushed to slowly move rightwards along with the increase of the pressure in the adjusting pipe, the first spring is extruded, the telescopic mechanism is contracted, and when the piston moves to the position of the communicating pipe, the communicating pipe is communicated with the left end of the adjusting pipe, so that the speed of increasing the internal pressure of the pipeline is reduced, the problem that the internal pressure of the pipeline is too fast to damage a mechanism in the valve is solved, the constant internal pressure of the pipeline is ensured, and the stability of the whole device is improved.
Preferably, a baffle matched with the adjusting pipe is fixedly connected in the adjusting pipe, and a through cavity is formed in the baffle.
The baffle can the separation piston, avoids the phenomenon that the piston appears moving to the left.
Preferably, the outer side surface of the adjusting pipe is fixedly connected with a matched fixed sleeve, and the side surface of the fixed sleeve is fixedly connected with the inner upper surface of the constant pressure box and the inner lower surface of the constant pressure box through two symmetrically arranged connecting rods.
The structure of the adjusting pipe is more stable.
Preferably, the number of the communicating pipes is four, and the four communicating pipes are uniformly distributed on the side surface of the adjusting pipe.
The uniform pressure discharge through the communicating pipe is convenient.
Preferably, telescopic machanism comprises sleeve and slide bar, telescopic one end and the medial surface fixed connection of control tube, and the slide bar sets up in the sleeve, slide bar and sleeve sliding connection, the one end of slide bar extend to the sleeve outside and with a side fixed connection of piston, the spring suit is located on slide bar and the sleeve.
In the use process, the piston pushes the sliding rod, the sliding rod contracts and is arranged in the sleeve, so that the first spring is extruded by the piston, the first spring is compressed, and the piston can horizontally move to the right.
Preferably, the upper surface of the bottom plate is fixedly connected with a fixed block, a second spring is arranged between the fixed block and the bearing plate, the second spring is sleeved on the valve rod, and two ends of the second spring are fixedly connected with the upper surface of the fixed block and the lower surface of the bearing plate respectively.
The elastic force of the second spring can buffer the impact force of air pressure on the bearing plate and the bottom plate, so that the bearing plate and the bottom plate are prevented from being deformed and damaged due to long-time impact, and the service lives of the bearing plate and the bottom plate are prolonged.
Preferably, two ends of the first spring are fixedly connected with one side surface of the piston and one inner side surface of the adjusting pipe respectively.
The structure of the first spring is more stable.
An anti-blocking unit is arranged in the filter box; the anti-blocking unit comprises a first filter screen, a second filter screen, an impeller fixedly connected with the rotating shaft, a support, a first cutting knife and an L-shaped cutting knife; the bracket is arranged on the inner wall of the filter box; the impeller is rotatably arranged in the middle of the bracket through a rotating shaft and is arranged according to the water flow direction; a first filter screen, a second filter screen and a first cutting knife are sequentially arranged on the rotating shaft between the impellers; the first filter screen and the first cutting knife are fixedly connected with the rotating shaft, the first filter screen and the first cutting knife are driven by a rotating impeller, and the edge of the impeller, the meshes of the first filter screen and the second filter screen are sharp cutting edges; the second filter screen is rotationally connected with the rotating shaft through a bearing; the L-shaped cutting knife is positioned in front of the first filter screen, and the end part of the L-shaped cutting knife is fixedly connected with the edge of the second filter screen; a groove is annularly arranged on the side wall of the second filter screen, and the side wall of the second filter screen beside the groove is connected with the inner wall of the filter box through a coil spring; a pull rope is wound in the groove, and the other end of the pull rope penetrates through the inner wall of the filter box and the outer wall of the constant pressure box and then is connected with the end part of the piston after being guided by the guide wheel.
A conical filter screen is arranged at the joint of the filter box and the buffer tank; the large end of the conical filter screen is rotationally connected with the inner wall of the filter box; a semi-conical cover is arranged on the inner wall of the filter box; the cover cap covers half of the outer surface of the conical filter screen; blades are uniformly distributed on the surface of the conical filter screen.
Compared with the prior art, the invention has the beneficial effects that:
1. when the valve is used, the piston is pushed to slowly move rightwards along with the increase of the pressure in the adjusting pipe, the first spring is extruded, the telescopic mechanism is contracted, and when the piston moves to the position of the communicating pipe, the communicating pipe is communicated with the left end of the adjusting pipe, so that the speed of increasing the internal pressure of the pipeline is reduced, the problem that the internal pressure of the pipeline is too fast to damage a mechanism in the valve is solved, the constant internal pressure of the pipeline is ensured, and the stability of the whole device is improved.
2. In the scheme, as the blades are arranged on the conical filter screen, and the conical filter screen is rotationally connected with the inner wall of the filter box, the conical filter screen is in a rotating state in sewage and is not easy to accumulate dirt; in addition, the conical filter screen is arranged in a conical manner, so that sewage on the conical filter screen is easy to impact away when impacting the conical filter screen, and the conical filter screen is prevented from being blocked;
3. in the present case, because the normal filter action of toper filter screen can obtain certain assurance for when sewage pressure is big, the constant pressure case can normally work, thereby can play the feedback effect to preventing stifled unit through a stay cord, has improved whole super atmospheric pressure self-operated pressure regulating valve's result of use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged view of the structure at B in FIG. 2;
in the figure: 1. a filter box; 2. a buffer tank; 3. an elastic tube; 4. a constant pressure box; 5. a bottom tube; 6. a bottom box; 7. a valve body; 8. an execution device; 9. a pressure guide pipe; 10. a piston; 11. a valve core; 12. a base plate; 13. a second spring; 14. a valve stem; 15. a bearing plate; 16. an adjusting tube; 17. a cavity is communicated; 18. a baffle plate; 19. a connecting rod; 20. fixing a sleeve; 21. a first spring; 22. a sleeve; 23. a slide bar; 24. a communicating pipe; 26. a first filter screen; 27. a second filter screen; 28. a rotating shaft; 29. an impeller; 30. a support; 31. a first cutter; 32. an L-shaped cutter; 33. a first pull rope; 34. a guide wheel; 35. a conical filter screen; 36. a cover; 37. a blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
an ultra-micro pressure self-operated pressure regulating valve is shown in figures 1 to 4 and comprises a filter box 1, wherein the upper end of the filter box 1 is fixedly communicated with a buffer tank 2, the buffer tank 2 is fixedly communicated with a constant pressure box 4 through an elastic tube 3, an inner side surface of the constant pressure box 4 is fixedly connected with a regulating tube 16, the elastic tube 3 penetrates through the side surface of the constant pressure box 4 and is fixedly communicated with the side surface of the regulating tube 16, a matched piston 10 is arranged in the regulating tube 16, an inner side surface of the regulating tube 16 is fixedly connected with two parallel telescopic mechanisms, one end of each telescopic mechanism is fixedly connected with one side surface of the piston 10, a first spring 21 is sleeved on each telescopic mechanism, a plurality of communicating tubes 24 are fixedly communicated on the outer side surface of the regulating tube 16, one side surface of the constant pressure box 4 is communicated with an executing device 8 through a pressure guide tube 9, a valve body 7 is arranged on the lower surface, a bottom box 6 is fixedly installed on one side surface of the filter box 1, a bottom pipe 5 is installed on the bottom surface of the bottom box 6, the lower end of a valve rod 14 extends to the inner cavity of the bottom box 6 and is fixedly connected with a valve core 11, a bearing plate 15 is sleeved on the valve rod 14, and a bottom fixing plate in the inner bottom of the valve body 7 is connected with a bottom plate 12;
a baffle 18 matched with the adjusting pipe 16 is fixedly connected in the adjusting pipe, and a through cavity 17 is arranged on the baffle 18.
By adopting the technical scheme, the baffle 18 can separate the piston 10, and the phenomenon that the piston 10 moves leftwards is avoided.
Specifically, the outer side surface of the adjusting pipe 16 is fixedly connected with a matched fixed sleeve 20, and the side surface of the fixed sleeve 20 is fixedly connected with the inner upper surface of the constant pressure box 4 and the inner lower surface of the constant pressure box 4 through two symmetrically arranged connecting rods 19.
By adopting the technical scheme, the structure of the adjusting pipe 16 is more stable.
Specifically, the number of the communicating tubes 24 is four, and the four communicating tubes 24 are uniformly distributed on the side surface of the adjusting tube 16.
By adopting the technical scheme, the uniform pressure discharge through the communicating pipe 24 is facilitated.
Specifically, the telescopic mechanism comprises a sleeve 22 and a sliding rod 23, one end of the sleeve 22 is fixedly connected with the inner side surface of the adjusting pipe 16, the sliding rod 23 is arranged in the sleeve 22, the sliding rod 23 is slidably connected with the sleeve 22, one end of the sliding rod 23 extends out of the sleeve 22 and is fixedly connected with one side surface of the piston 10, and the sliding rod 23 and the sleeve 22 are sleeved with a first spring 21.
By adopting the technical scheme, in the using process, the piston 10 pushes the sliding rod 23, the sliding rod 23 contracts and is connected with the sleeve 22, so that the first spring 21 is extruded by the piston 10, the first spring 21 is compressed, and the piston 10 can horizontally move to the right.
Specifically, the upper surface of the bottom plate 12 is fixedly connected with a fixing block, a second spring 13 is arranged between the fixing block and the bearing plate 15, the second spring 13 is sleeved on the valve rod 14, and two ends of the second spring 13 are fixedly connected with the upper surface of the fixing block and the lower surface of the bearing plate 15 respectively.
Through adopting above-mentioned technical scheme, the elastic force of spring two 13 can cushion bearing plate 15 and bottom plate 12 and receive the impact force of atmospheric pressure, has avoided bearing plate 15 and bottom plate 12 to receive the impact and warp the damage for a long time, has improved bearing plate 15 and bottom plate 12's life.
Specifically, two ends of the first spring 21 are fixedly connected with one side surface of the piston 10 and one inner side surface of the adjusting tube 16 respectively.
Through adopting above-mentioned technical scheme, make the structure of spring one 21 more stable.
An anti-blocking unit is arranged in the filter box 1; the anti-blocking unit comprises a first filter screen 26, a second filter screen 27, an impeller 29 fixedly connected with a rotating shaft 28, a support 30, a first cutting knife 31 and an L-shaped cutting knife 32; the bracket 30 is arranged on the inner wall of the filter box 1; the impeller 29 is rotatably arranged in the middle of the bracket 30 through a rotating shaft 28, and the impeller 29 is arranged according to the water flow direction; a first filter screen 26, a second filter screen 27 and a first cutting knife 31 are sequentially arranged on the rotating shaft 28 between the impeller 29 and the impeller; the first filter screen 26 and the first cutting knife 31 are fixedly connected with the rotating shaft 28, the first filter screen 26 and the first cutting knife 31 are driven by the rotating impeller 29, and the edge of the impeller 29, the meshes of the first filter screen 26 and the second filter screen 27 are sharp cutting edges; the second filter screen 27 is rotatably connected with the rotating shaft 28 through a bearing; the L-shaped cutting knife 32 is positioned in front of the first filter screen 26, and the end part of the L-shaped cutting knife 32 is fixedly connected with the edge of the second filter screen 27; a groove is annularly arranged on the side wall of the second filter screen 27, and the side wall of the second filter screen 27 beside the groove is connected with the inner wall of the filter box 1 through a coil spring; a first pull rope 33 is wound in the groove, and the other end of the first pull rope 33 penetrates through the inner wall of the filter box 1 and the outer wall of the constant pressure box 4 and then is connected with the end part of the piston 10 after being guided by a guide wheel 34.
When the device works, when sewage is pumped out by a pump and reaches the annular filter box 1 after primary filtration, granular dirt such as rice grains, broken vegetable leaves and other fragile substances are remained in the sewage; when the dirt passes through the filter box 1, the dirt needs to be further filtered and crushed, so that the problem that the rear sewage treatment equipment is blocked by the larger-particle dirt passing through the filter box 1 and the whole sewage treatment equipment cannot normally operate for a long time is avoided; therefore, when sewage passes through the filter tank 1, the flowing sewage drives the impeller 29 to rotate, and the rotating impeller 29 drives the first filter screen 26 and the first cutting knife 31 to rotate through the rotating shaft 28; because the first filter screen 26 is positioned on one side surface of the second filter screen 27 and the first cutting knife 31 is positioned on the other side surface of the second filter screen 27, the rotating first filter screen 26 and the rotating first cutting knife 31 are matched to have the effect of cutting and crushing dirt on two side surfaces of the second filter screen 27; thereby making it difficult for dirt to be blocked at the second screen 27; meanwhile, as the first filter screen 26 can rotate relative to the second filter screen 27, the dirt passing through the first filter screen 26 and the second filter screen 27 at the same time is directly matched with the first filter screen 26 and the second filter screen 27 to be cut and crushed; in addition, the edge of the rotating impeller 29 can also cut and crush dirt, so that the resistance to the rotation of the impeller 29 is reduced; when the dirt is more, the situation that the dirt blocks the first filter screen 26 still occurs, when more dirt blocks the first filter screen 26 and the water pressure in the filter box 1 is increased, part of the water flow enters the constant pressure box 4, the piston 10 slides in the adjusting pipe 16 due to the gradual increase of the water pressure, the sliding piston 10 can pull the first pull rope 33 to move, the first pull rope 33 can pull the second filter screen 27 to rotate, and when the sliding distance of the piston 10 is longer, the second filter screen 27 can continuously rotate for multiple circles; at this time, the first filter screen 26 is in a relatively static state, the second filter screen 27 rotates relative to the first filter screen 26, and the second filter screen 27 can cut and crush dirt which partially blocks the first filter screen 26 and extends out of the meshes of the first filter screen 26, so that the blockage of the dirt on the first filter screen 26 is reduced; meanwhile, the second filter screen 27 rotates to drive the L-shaped cutting knife 32 to cut and crush the dirt on the front side of the first filter screen 26, so that part of the dirt is prevented from being blocked on the front side of the first filter screen 26; when most of the dirt blocked at the front side of the first filter screen 26 is cut and crushed, the crushed dirt continues to flow away through the first filter screen 26 and the second filter screen 27, so that the sewage flows smoothly in the filter tank 1; the impeller 29 can rotate again, so that the first filter screen 26 is driven to cut and crush the residual small amount of dirt, and the sewage flows more smoothly; thereby solving or reducing the problem that the subsequent sewage treatment equipment is blocked by large-particle dirt; meanwhile, after the sewage in the filter box 1 smoothly circulates, the pressure in the constant pressure box 4 is reduced, the piston 10 slides and resets, so that the first pull rope 33 is loosened, the second filter screen 27 is reversely rotated under the action of the coil spring to wind the first pull rope 33, and meanwhile, the second filter screen 27 can reversely rotate relative to the first filter screen 26 so as to improve the cutting and crushing effects of the sewage; further avoid or reduce the emergence of the jam problem of follow-up sewage treatment device of large granule filth in the sewage.
In addition, a cutter is arranged on one side surface of the first filter screen 26 close to the L-shaped cutter 32; the cutters are arranged between adjacent filtering holes, and the cutters and the L-shaped cutters 32 have gaps without interference; the blade points of the first cutter 31 and the L-shaped cutter 32 are rotatably cut along the front and the back of the first filter screen 26 or the second filter screen 27, and the first cutter 31 and the L-shaped cutter 32 are rod-shaped;
the filter box 1 in the scheme is tubular, when sewage in the filter box 1 flows to the impeller 29, the upper pressure and the lower pressure of the sewage on blades of the impeller 29 are unbalanced, so that the impeller 29 can be normally driven by the flowing sewage, and the impeller 29 can normally rotate due to the fact that the water pressure at the impeller 29 is not uniform by the flowing sewage flowing into the filter box 1 or the baffle plate is arranged on the inner wall of the filter box 1.
A conical filter screen 35 is arranged at the joint of the filter box 1 and the buffer tank 2; the large end of the conical filter screen 35 is rotatably connected with the inner wall of the filter box 1; a half-cone-shaped cover cap 36 is arranged on the inner wall of the filter box 1; the cover cap 36 covers half of the outer surface of the conical filter screen 35; blades 37 are uniformly distributed on the surface of the conical filter screen 35.
When the sewage treatment device works, the buffer tank 2 is used for buffering the pressure of sewage impact; the conical filter screen 35 is arranged at the joint of the filter box 1 and the buffer tank 2, so that sewage firstly passes through the conical filter screen 35 when entering the buffer tank 2, and the conical filter screen 35 is in a rotating state in the sewage and is not easy to accumulate dirt because the blades 37 are arranged on the conical filter screen 35 and the conical filter screen 35 is rotatably connected with the inner wall of the filter box 1; in addition, the conical filter screen 35 is arranged in a conical shape, so that sewage on the conical filter screen 35 is easy to impact away when impacting the conical filter screen 35, and the conical filter screen 35 is prevented from being blocked; and the effect that shroud 36 played does, only impact half blade 37 of conical screen 35 all the time when guaranteeing sewage to flow, thereby make conical screen 35 can keep the rotation state all the time in the sewage that flows, thereby further avoid or reduced the jam of filth to conical screen 35, and then guaranteed the normal filter action of conical screen 35, and because the normal filter action of conical screen 35 can improvement by a wide margin, and then make when sewage pressure is big, constant pressure tank 4 can normally work, thereby can play the feedback effect to preventing stifled unit through stay cord 33, the result of use of whole super atmospheric pressure self-operated pressure control valve has been improved.
The working principle is as follows: when the valve is used, the piston 10 is pushed to slowly move rightwards along with the increase of the pressure in the adjusting pipe 16, the first spring 21 is extruded, the telescopic mechanism is contracted, and when the piston 10 moves to the position of the communicating pipe 24, the communicating pipe 24 is communicated with the left end of the adjusting pipe 16, so that the speed of increasing the pressure inside the pipeline is reduced, the problem that the internal mechanism of the valve is damaged due to the fact that the internal pressure is too fast is solved, the constant pressure inside the pipeline is guaranteed, and the stability of the whole device is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an ultramicro pressure self-operated pressure regulating valve, includes rose box (1), its characterized in that: the upper end of the filter box (1) is fixedly communicated with a buffer tank (2), the buffer tank (2) is fixedly communicated with a constant pressure box (4) through an elastic pipe (3), an inner side surface of the constant pressure box (4) is fixedly connected with an adjusting pipe (16), the elastic pipe (3) penetrates through the side surface of the constant pressure box (4) and is fixedly communicated with the side surface of the adjusting pipe (16), a matched piston (10) is arranged in the adjusting pipe (16), one inner side surface of the adjusting pipe (16) is fixedly connected with two telescopic mechanisms which are arranged in parallel, one end of each telescopic mechanism is fixedly connected with one side surface of the piston (10), a spring I (21) is sleeved on each telescopic mechanism, the outer side surface of the adjusting pipe (16) is fixedly communicated with a plurality of communicating pipes (24), one side surface of the constant pressure box (4) is communicated with an executing device (8) through a pressure guide pipe (9), and a valve body (7) is, the valve body (7) endotheca is equipped with valve rod (14), and a side fixed mounting of rose box (1) has under casing (6), and under casing (5) are installed to the bottom surface of under casing (6), and the lower extreme of valve rod (14) extends to the inner chamber and the fixedly connected with case (11) of under casing (6), and the cover is equipped with bearing plate (15) on valve rod (14), and the interior bottom fixed plate of valve body (7) is connected with bottom plate (12).
2. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: the adjusting pipe (16) is internally and fixedly connected with a baffle (18) matched with the adjusting pipe, and the baffle (18) is provided with a through cavity (17).
3. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: the outer side surface of the adjusting pipe (16) is fixedly connected with a matched fixed sleeve (20), and the side surface of the fixed sleeve (20) is fixedly connected with the inner upper surface of the constant-pressure box (4) and the inner lower surface of the constant-pressure box (4) through two symmetrically arranged connecting rods (19).
4. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: the number of the communicating pipes (24) is four, and the four communicating pipes (24) are uniformly distributed on the side surface of the adjusting pipe (16).
5. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: telescopic machanism comprises sleeve (22) and slide bar (23), the medial surface fixed connection of the one end of sleeve (22) and control tube (16), slide bar (23) set up in sleeve (22), slide bar (23) and sleeve (22) sliding connection, the one end of slide bar (23) extend to sleeve (22) outside and with a side fixed connection of piston (10), spring (21) cover is located on slide bar (23) and sleeve (22).
6. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: the upper surface of bottom plate (12) fixed connection has the fixed block, is provided with spring two (13) between fixed block and bearing plate (15), and on valve rod (14) were located in spring two (13) cover, the both ends of spring two (13) respectively with the upper surface of fixed block and the lower fixed connection of bearing plate (15).
7. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: and two ends of the first spring (21) are respectively fixedly connected with one side surface of the piston (10) and one inner side surface of the adjusting pipe (16).
8. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: an anti-blocking unit is arranged in the filter box (1); the anti-blocking unit comprises a first filter screen (26), a second filter screen (27), an impeller (29) fixedly connected with a rotating shaft (28), a support (30), a first cutting knife (31) and an L-shaped cutting knife (32); the bracket (30) is arranged on the inner wall of the filter box (1); the impeller (29) is rotatably arranged in the middle of the bracket (30) through a rotating shaft (28), and the impeller (29) is arranged according to the water flow direction; a first filter screen (26), a second filter screen (27) and a first cutting knife (31) are sequentially arranged on the rotating shaft (28) between the impellers (29); the first filter screen (26) and the first cutting knife (31) are fixedly connected with the rotating shaft (28), the first filter screen (26) and the first cutting knife (31) are driven by a rotating impeller (29), and the edge of the impeller (29), the first filter screen (26) and the second filter screen (27) are sharp cutting edges; the second filter screen (27) is rotationally connected with the rotating shaft (28) through a bearing; the L-shaped cutting knife (32) is positioned in front of the first filter screen (26), and the end part of the L-shaped cutting knife (32) is fixedly connected with the edge of the second filter screen (27); a groove is annularly arranged on the side wall of the second filter screen (27), and the side wall of the second filter screen (27) beside the groove is connected with the inner wall of the filter box (1) through a coil spring; a pull rope (33) is wound in the groove, and the other end of the pull rope (33) penetrates through the inner wall of the filter box (1) and the outer wall of the constant pressure box (4) and then is connected with the end of the piston (10) after being guided by the guide wheel (34).
9. The ultra-micro pressure self-operated pressure regulating valve according to claim 1, wherein: a conical filter screen (35) is arranged at the joint of the filter box (1) and the buffer tank (2); the large end of the conical filter screen (35) is rotationally connected with the inner wall of the filter box (1); a semi-conical cover (36) is arranged on the inner wall of the filter box (1); the cover cap (36) covers half of the outer surface of the conical filter screen (35); blades (37) are uniformly distributed on the surface of the conical filter screen (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010836404.XA CN112032561A (en) | 2020-08-19 | 2020-08-19 | Ultramicro-pressure self-operated pressure regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010836404.XA CN112032561A (en) | 2020-08-19 | 2020-08-19 | Ultramicro-pressure self-operated pressure regulating valve |
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| CN112032561A true CN112032561A (en) | 2020-12-04 |
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| CN202010836404.XA Pending CN112032561A (en) | 2020-08-19 | 2020-08-19 | Ultramicro-pressure self-operated pressure regulating valve |
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| CN112960403A (en) * | 2021-02-18 | 2021-06-15 | 杭州京旺科技有限公司 | Safe and energy-saving dust material conveying system |
| CN114321728A (en) * | 2021-11-25 | 2022-04-12 | 中铁大桥科学研究院有限公司 | Pump prying system and construction method thereof |
| CN116007277A (en) * | 2023-03-24 | 2023-04-25 | 四川蜀旺新能源股份有限公司 | Adjusting device based on cogeneration system |
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