CN112460304A - Flow precision control valve - Google Patents
Flow precision control valve Download PDFInfo
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- CN112460304A CN112460304A CN202011423739.5A CN202011423739A CN112460304A CN 112460304 A CN112460304 A CN 112460304A CN 202011423739 A CN202011423739 A CN 202011423739A CN 112460304 A CN112460304 A CN 112460304A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0486—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with mechanical actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
- F16K17/105—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve using choking or throttling means to control the fluid operation of the main valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention provides a flow precision control valve which comprises a valve body, flange plates, a flow speed adjusting mechanism and a flow adjusting mechanism, wherein the flange plates are hermetically connected to two ends of the valve body, and the flow adjusting mechanism and the flow speed adjusting mechanism are sequentially arranged on the valve body from left to right. The invention provides a flow precision control valve, which can solve the following problems in the use process of the flow precision control valve: a. the existing flow control valve has many problems in the use process, the sealing effect is poor, gas in the valve leaks after long-time use, the gas in the valve is wasted, and the flow control precision of the valve is not high, so that the valve cannot be effectively adjusted to an ideal state in the use process; b. the flow control valve controls the gas to pass through by changing the area of the basin, so that the aperture adjustment is insensitive after long-time use, meanwhile, the aperture adjustment is ineffective due to poor sealing effect, and the flow adjustment of the flow control valve cannot be effectively realized.
Description
Technical Field
The invention relates to the technical field of flow control valves, in particular to a flow precision control valve.
Background
The flow control valve is also called 400X flow control valve, which is a multifunctional valve adopting high-precision pilot mode to control flow. The valve is suitable for the pipeline of water distribution pipe which needs to control flow and pressure, keeps the preset flow unchanged, limits the overlarge flow to a preset value, and properly reduces the upstream high pressure, so that the flow of the downstream of the main valve is not influenced even if the pressure of the upstream of the main valve changes. The connection mode is divided into a flange type, a thread type and a welding type. The control and regulation modes are automatic and manual.
At present, the following problems exist in the use process of a flow precision control valve: a. the existing flow control valve has many problems in the use process, the sealing effect is poor, gas in the valve leaks after long-time use, so that the gas in the valve is wasted, and the flow control precision of the valve is not high, so that the valve cannot be effectively adjusted to an ideal state in the use process, and the use effect of the flow control valve is poor; b. the flow control valve controls the gas to pass through by changing the area of the basin, so that the aperture adjustment is insensitive after long-time use, meanwhile, the aperture adjustment is ineffective due to poor sealing effect, and the flow adjustment of the flow control valve cannot be effectively realized.
Disclosure of Invention
Technical problem to be solved
The invention provides a flow precision control valve, which can solve the following problems in the use process of the flow precision control valve: a. the existing flow control valve has many problems in the use process, the sealing effect is poor, gas in the valve leaks after long-time use, so that the gas in the valve is wasted, and the flow control precision of the valve is not high, so that the valve cannot be effectively adjusted to an ideal state in the use process, and the use effect of the flow control valve is poor; b. the flow control valve controls the gas to pass through by changing the area of the basin, so that the aperture adjustment is insensitive after long-time use, meanwhile, the aperture adjustment is ineffective due to poor sealing effect, and the flow adjustment of the flow control valve cannot be effectively realized.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme: a flow precision control valve comprises a valve body, flange plates, a flow velocity adjusting mechanism and a flow adjusting mechanism, wherein the valve body is of a circular structure with left and right openings, the flange plates are hermetically connected to two ends of the valve body, and the flow adjusting mechanism and the flow velocity adjusting mechanism are sequentially arranged inside and outside the valve body from left to right; wherein:
the flow regulating mechanism comprises a fixed plate, a flow limiting block, a circulation hole, a regulating branched chain, a regulating groove, a regulating block, a connecting rod, a display branched chain, a mounting block, a sliding groove, a lifting screw rod, a mounting frame and a regulating handle, wherein the flow limiting block is arranged in the central line direction in the valve body, the flow limiting block is fixedly mounted in the valve body through the fixed plate, the fixed plate divides the inside of the valve body into a left part and a right part in a sealing way, the flow limiting block is provided with the circulation hole which is communicated with the left part and the right part, the middle part of the flow limiting block is provided with the regulating groove which is communicated with the circulation hole up and down in the vertical direction, the regulating groove is internally provided with the regulating block in a sliding way, the lower end of the regulating block is fixedly connected with the regulating branched chain, the upper end of the regulating block is fixedly connected with, the inside sliding tray that link up from top to bottom of seting up of installation piece, the sliding setting in the sliding tray in connecting rod upper end, the regulating block can slide from top to bottom in the sliding tray, the lift lead screw slides the upper end of passing the valve body, just the lift lead screw lower extreme slides and sets up in the sliding tray, the fixed welding in valve body upper end has the mounting bracket, the mounting bracket is the hollow shell structure of lower extreme opening, the lift lead screw passes through bearing fixed mounting at the top of mounting bracket, lift lead screw upper end fixed mounting has adjustment handle, the demonstration branch chain is installed to the mounting bracket lateral wall.
The flow velocity adjusting mechanism comprises a flow limiting plate, a baffle, a sealing gasket, a sealing ring, a limiting groove, a limiting spring, a moving groove, a sleeve and a rotating rod, wherein the flow limiting plate is fixedly arranged in the valve body and is positioned in the right direction of the flow limiting block, the baffle is arranged on the right side of the flow limiting plate, the limiting groove is circumferentially formed in the inner wall of the valve body, the baffle is arranged in the limiting groove in a sliding manner, the sealing gasket is arranged on one side, close to the baffle, of the flow limiting plate, the baffle is in sliding sealing fit with the flow limiting plate through the sealing gasket, the sealing ring is arranged on the left end face and the right end face of the baffle, the baffle is in sliding fit with the limiting groove through the sealing ring, the limiting spring is uniformly arranged at the lower end of the baffle from front to back, the lower, slide in the shifting chute and be provided with the sleeve, the sleeve is whole to be the circular hollow shell structure of upper end open-ended, terminal surface and baffle up end inconsistent cooperation under the sleeve, the hollow inner wall of sleeve is seted up there is the internal thread, the sleeve passes through internal thread and dwang looks threaded connection, the dwang passes through bearing fixed mounting and is in on the valve body.
Preferably, the adjusting branch chain comprises an adjusting rod, an adjusting spring, a piston plate, a pressure membrane, a connecting pipe and an adjusting frame, the lower end face of the adjusting block is fixedly connected with the adjusting rod, the adjusting rod is connected with a current limiting block in a sliding manner, the lower end of the adjusting rod is fixedly welded with the piston plate, the adjusting spring is positioned between the piston plate and the lower end face of the current limiting block, the lower end face of the current limiting block is fixedly provided with the adjusting frame, the adjusting frame is of a shell structure with a hollow inner part, the piston plate is arranged in the adjusting frame in a sliding manner, the inner part of the adjusting frame is fixedly provided with the pressure membrane, the pressure membrane is positioned at the lower end of the piston plate, the adjusting rod is sleeved with the adjusting spring, the lower end of the adjusting frame is fixedly connected with the connecting pipe, the connecting pipe is communicated, the other end of the connecting pipe is communicated with the inside of the valve body on the left side of the flow limiting block.
Preferably, the display branched chain comprises a display disc, a pointer and a moving block, the lifting lead screw is sleeved with the moving block in a threaded connection mode, the moving block is arranged inside the mounting frame in a sliding mode, the pointer is fixed on the outer side wall of the moving block, and the display disc is fixedly mounted on the side wall, pointing to the pointer, of the mounting frame.
Preferably, the left end face and the right end face of the adjusting block are fixedly provided with sealing plates, and the adjusting block slides up and down in the adjusting groove through the sealing plates.
Preferably, the flow limiting plate is evenly provided with flow limiting holes in the left end face and the right end face, and the baffle is provided with through holes matched with the flow limiting holes in the left end face and the right end face.
Preferably, the ring flange fixed seal install terminal surface department about the valve body, the terminal surface that the valve body was kept away from to the ring flange is provided with the sealing ring, evenly set up threaded hole in ring flange terminal surface edge circumference, the valve body passes through the ring flange and the sealing ring on it and pipeline looks sealing connection.
(III) advantageous effects
1. The invention provides a flow precision control valve, which can solve the following problems in the use process of the flow precision control valve: a. the existing flow control valve has many problems in the use process, the sealing effect is poor, gas in the valve leaks after long-time use, so that the gas in the valve is wasted, and the flow control precision of the valve is not high, so that the valve cannot be effectively adjusted to an ideal state in the use process, and the use effect of the flow control valve is poor; b. the flow control valve controls the gas to pass through by changing the area of the basin, so that the aperture adjustment is insensitive after long-time use, meanwhile, the aperture adjustment is ineffective due to poor sealing effect, and the flow adjustment of the flow control valve cannot be effectively realized.
2. According to the flow regulating mechanism designed by the invention, high-pressure gas in the valve body flows into the connecting pipe, the regulating block moves upwards through the pressure diaphragm so as to open the circulation hole, so that the gas can flow through the circulation hole, the lifting screw rod is arranged at the upper end of the regulating block and is extruded and abutted with the connecting rod at the upper end of the regulating block, the lifting screw rod moves up and down through the regulating handle, so that the regulating block moves up and down to change the circulation aperture of the circulation hole, and finally the regulation of the gas circulation flow is realized, the display disc is arranged on the mounting frame, and the regulation can be effectively and clearly controlled through the display disc.
3. According to the flow velocity adjusting mechanism designed by the invention, the flow velocity of gas is adjusted through the communication area of the baffle plate and the flow limiting hole of the flow limiting plate, the limiting spring is arranged at the lower end of the baffle plate and is always extruded to push the baffle plate to move upwards, the rotating rod is manually rotated to enable the sleeve in threaded connection with the rotating rod to move upwards and downwards, the contact distance between the sleeve and the upper end of the baffle plate is changed, the baffle plate moves upwards under the action of the limiting spring, the through hole of the baffle plate is staggered with the flow limiting hole of the flow limiting plate, the communication area of the baffle plate is further changed, and the change.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a three-dimensional block diagram of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 taken along line A in the present specification;
FIG. 4 is an enlarged view of a portion of FIG. 2 taken along line B in the present specification;
FIG. 5 is an enlarged view of a portion of FIG. 2 taken along line C in the present specification;
fig. 6 is a three-dimensional perspective view of a restrictor plate according to the teachings of the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 6, a precision flow control valve comprises a valve body 1, a flange 2, a flow rate adjusting mechanism 3 and a flow adjusting mechanism 4, wherein the valve body 1 is of a ring structure with left and right openings, the two ends of the valve body 1 are connected with the flange 2 in a sealing manner, the flow adjusting mechanism 4 and the flow rate adjusting mechanism 3 are sequentially arranged inside and outside the valve body 1 from left to right, the flange 2 is fixedly and hermetically mounted on the left and right end surfaces of the valve body 1, the end surface of the flange 2, which is far away from the valve body 1, is provided with a sealing ring 21, the edge of the end surface of the flange 2 is circumferentially and uniformly provided with threaded holes 22, and the valve body 1 is hermetically connected with a pipeline through the; during specific work, the two ends of the valve body 1 are connected with the pipeline through the flange plates 2, the pipeline and the valve body 1 are fixedly connected through the bolts and the thread matching of the threaded holes 22, the sealing rings 21 are arranged between the pipeline and the flange plates 2, the leakage phenomenon at the joints of the pipeline and the flange plates 2 can be avoided through the sealing rings 21, and leakage is prevented.
The flow regulating mechanism 4 comprises a fixing plate 41, a flow limiting block 42, a flow hole 43, a regulating branch chain 44, a regulating groove 45, a regulating block 46, a connecting rod 47, a display branch chain 48, a mounting block 49, a sliding groove 410, a lifting screw 411, a mounting frame 412 and a regulating handle 413, wherein the flow limiting block 42 is arranged in the valve body 1 in the central line direction, the flow limiting block 42 is fixedly mounted in the valve body 1 through the fixing plate 41, the fixing plate 41 divides the interior of the valve body 1 into a left part and a right part in a sealing manner, the flow limiting block 42 is provided with the flow hole 43 which is communicated with the left and the right, the middle part of the flow limiting block 42 is provided with the regulating groove 45 which is communicated with the vertical direction, the regulating groove 45 is communicated with the flow hole 43, the regulating block 46 is arranged in the regulating groove 45 in a sliding manner, sealing plates 46a are fixedly mounted on the left end face and the right end face of the, the lower end of the adjusting block 46 is fixedly connected with an adjusting branched chain 44; the adjusting branched chain 44 comprises an adjusting rod 441, an adjusting spring 442, a piston plate 443, a pressure membrane 444, a connecting pipe 445 and an adjusting frame 446, the lower end surface of the adjusting block 46 is fixedly connected with the adjusting rod 441, the adjusting rod 441 is slidably connected with a flow limiting block 42, the lower end of the adjusting rod 441 is fixedly welded with the piston plate 443, the adjusting spring 442 is located between the lower end surfaces of the piston plate 443 and the flow limiting block 42, the lower end surface of the flow limiting block 42 is fixedly provided with the adjusting frame 446, the adjusting frame 446 is of a hollow shell structure, the piston plate 443 is slidably arranged in the adjusting frame 446, the adjusting frame 446 is fixedly provided with the pressure membrane 444, the pressure membrane 444 is located at the lower end of the piston plate 443, the adjusting rod 441 is sleeved with the adjusting spring 442, the lower end of the adjusting frame 446 is fixedly connected with the connecting pipe 445, and the connecting pipe 445 is communicated with a sealed space formed by, the other end of the connecting pipe 445 is connected with the fixing plate 41 on the left side of the flow limiting block 42, and the other end of the connecting pipe 445 is communicated with the inside of the valve body 1 on the left side of the flow limiting block 42; the upper end of the adjusting block 46 is fixedly connected with a connecting rod 47, an installing block 49 is fixedly installed on the upper end face of the flow limiting block 42, the upper end of the installing block 49 is fixedly connected with the inside of the valve body 1, a sliding groove 410 which is through up and down is formed in the installing block 49, the upper end of the connecting rod 47 is slidably arranged in the sliding groove 410, the adjusting block 46 can slide up and down in the sliding groove 410, the lifting screw rod 411 penetrates through the upper end of the valve body 1 in a sliding mode, the lower end of the lifting screw rod 411 is slidably arranged in the sliding groove 410, an installing frame 412 is fixedly welded to the upper end of the valve body 1, the installing frame 412 is of a hollow shell structure with an opening at the lower end, the lifting screw rod 411 is fixedly installed at the top of the installing frame 412 through a bearing, an adjusting handle 413 is fixedly; the display branched chain 48 comprises a display disc 481, a pointer 482 and a moving block 483, the lifting screw 411 is sleeved with a moving block 483 in a threaded connection mode, the moving block 483 is arranged inside the mounting frame 412 in a sliding mode, the pointer 482 is fixed on the outer side wall of the moving block 483, and the display disc 481 is fixedly mounted on the side wall of the mounting frame 412 to which the pointer 482 points.
In the specific operation, when gas passes through the pipeline on the left side of the valve body 1, the gas is introduced into the inside of the left side of the valve body 1 through the flange 2, at the beginning, the adjusting block 46 seals and blocks the flow hole 43 through the sealing plate 46a, so that the gas cannot flow through the flow limiting block 42 to the right, then high-pressure gas on the left side of the valve body 1 enters the connecting pipe 445 and then flows into the sealed space formed by the adjusting frame 446 and the pressure diaphragm 444, so that the gas presses the pressure diaphragm 444, the pressure diaphragm 444 expands and extrudes to push the piston plate 443, the piston plate 443 slides in the adjusting frame 446, the adjusting rod 441 pushes the adjusting block 46 to move upwards, the adjusting spring 442 starts to compress, so that the adjusting block 46 moves upwards in the adjusting groove 45 through the sealing plate 46a, the sealing plate 46a is arranged, the gas is placed to flow into the sliding groove 410 through the adjusting groove 45, and, when the adjusting block 46 moves upwards, the adjusting block 46 is not blocking the circulation hole 43, so that the gas can circulate to the right side from the left side of the valve body 1, when the connecting rod 47 at the upper end of the adjusting block 46 contacts the lower end surface of the lifting screw rod 411, the adjusting block 46 stops moving, when the adjusting handle 413 is rotated, the lifting screw rod 411 can move up and down, when the lifting screw rod 411 moves upwards, the adjusting block 46 continues to move upwards through the pressure membrane 444, the circulated area of the circulation hole 43 is changed, so that the flow of the gas passing through the circulation hole 43 is changed, when the lifting screw rod 411 moves downwards, the lifting screw rod 411 can push the connecting rod 47 to move downwards, so that the adjusting block 46 also moves downwards, the circulation area of the circulation hole 43 is reduced, the circulated gas amount is reduced, and the flow rate is increased; when the lifting screw 411 moves up and down, the lifting screw 411 enables the moving block 483 to move up and down in the mounting frame 412 through threaded connection, and meanwhile, the pointer 482 is driven to move up and down synchronously, so that the scale of the pointer 482 pointing to the display disc 481 is changed along with the scale, the gas flow of the circulation hole 43 can be judged through the display disc 481, and when the valve body 1 is not filled with gas, the adjusting block 46 moves down under the action of the adjusting spring 442, and the circulation hole 43 is completely blocked.
The flow velocity adjusting mechanism 3 comprises a flow limiting plate 31, a baffle 32, a sealing gasket 33, a sealing ring 34, a limiting groove 35, a limiting spring 36, a moving groove 37, a sleeve 38 and a rotating rod 39, the flow limiting plate 31 is fixedly arranged in the valve body 1, the flow limiting plate 31 is positioned on the right side direction of a flow limiting block 42, the baffle 32 is arranged on the right side of the flow limiting plate 31, a flow limiting hole 31b is uniformly formed in the left end surface and the right end surface of the flow limiting plate 31, a through hole 31c matched with the flow limiting hole 31b is formed in the left end surface and the right end surface of the baffle 32, the limiting groove 35 is formed in the circumferential direction of the inner wall of the valve body 1, the baffle 32 is slidably arranged in the limiting groove 35, the sealing gasket 33 is arranged on one side of the flow limiting plate 31, the baffle 32 is in sliding sealing fit with the flow limiting plate 31 through the sealing gasket 33, baffle 32 lower extreme evenly is provided with spacing spring 36 backward in the past, 36 lower extreme fixed mounting of spacing spring is in spacing groove 35 bottom, shifting chute 37 has been seted up to valve body 1 upper end, 37 lower extremes of shifting chute are linked together with spacing groove 35, it is provided with sleeve 38 to slide in the shifting chute 37, sleeve 38 is whole to be the circular hollow shell structure of upper end open-ended, terminal surface and baffle 32 up end inconsistent cooperation under the sleeve 38, the internal thread has been seted up to the hollow inner wall of sleeve 38, sleeve 38 is through internal thread and dwang 39 looks threaded connection, dwang 39 passes through bearing fixed mounting and is in on the valve body 1.
When the gas flow rate is increased after the gas passes through the flow regulating mechanism 4, the rotating rod 39 is manually rotated to rotate the rotating rod 39, the rotating rod 39 is matched with the sleeve 38 through threaded connection, so that the sleeve 38 moves up and down, when the sleeve 38 moves up, the lower end surface of the sleeve 38 does not have an acting force which is in conflict with the upper end surface of the baffle 32, so that the baffle 32 moves up under the pushing of the limiting spring 36, the through hole 31c of the baffle 32 is staggered with the limiting hole 31b of the flow limiting plate 31, the aperture size of gas circulation is changed, the flow rate of the gas is changed, when the sleeve 38 moves down, the sleeve 38 extrudes the baffle 32 to push the baffle 32 to move down, the through hole 31c of the baffle 32 is gradually and completely communicated with the limiting hole 31b of the flow limiting plate 31, the aperture of the gas circulation is increased, meanwhile, the baffle 32 compresses the limiting spring 36, and the left, the gas is prevented from flowing to the outside of the valve body 1 through the limiting groove 35, so that gas leakage is avoided, the sealing gasket 33 is arranged between the flow limiting plate 31 and the baffle plate 32, and the flow limiting plate 31 and the baffle plate 32 are ensured to slide in a sealing manner, so that the gas can only be discharged through the through hole 31 c.
The method comprises the following steps during specific work:
the first step is as follows: two ends of the valve body 1 are communicated with a pipeline through a flange 2, and then gas is introduced into the pipeline on the left side of the valve body 1;
the second step is that: gas enters the valve body 1 from a left pipeline, then the circulation control is carried out through the flow limiting block 42 of the flow regulating mechanism 4, and the gas flow velocity passing through the flow regulating mechanism 4 is increased;
the third step: the gas with the increased flow rate is then passed through the flow rate adjusting mechanism 3 to adjust the flow rate by changing the aperture.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a flow precision control valve, includes valve body (1), ring flange (2), velocity of flow adjustment mechanism (3) and flow control mechanism (4), its characterized in that: the valve body (1) is of a circular ring structure with a left opening and a right opening, two ends of the valve body (1) are hermetically connected with flange plates (2), and a flow regulating mechanism (4) and a flow speed regulating mechanism (3) are sequentially arranged inside and outside the valve body (1) from left to right; wherein:
the flow regulating mechanism (4) comprises a fixing plate (41), a flow limiting block (42), a circulation hole (43), a regulating branch chain (44), a regulating groove (45), a regulating block (46), a connecting rod (47), a display branch chain (48), a mounting block (49), a sliding groove (410), a lifting screw rod (411), a mounting frame (412) and a regulating handle (413), wherein the flow limiting block (42) is arranged in the valve body (1) in the central line direction, the flow limiting block (42) is fixedly mounted in the valve body (1) through the fixing plate (41), the fixing plate (41) divides the interior of the valve body (1) into two parts in a left-right sealing way, the flow limiting block (42) is provided with the circulation hole (43) which is communicated in the left-right way, the middle part of the flow limiting block (42) is provided with the regulating groove (45) which is communicated in the up-down way in the vertical direction, and the regulating groove, the adjustable valve is characterized in that an adjusting block (46) is arranged in the adjusting groove (45) in a sliding manner, an adjusting branch chain (44) is fixedly connected to the lower end of the adjusting block (46), a connecting rod (47) is fixedly connected to the upper end of the adjusting block (46), an installing block (49) is fixedly installed on the upper end face of the flow limiting block (42), the upper end of the installing block (49) is fixedly connected with the inside of the valve body (1), a sliding groove (410) which is through from top to bottom is formed in the inside of the installing block (49), the upper end of the connecting rod (47) is arranged in the sliding groove (410) in a sliding manner, the adjusting block (46) can slide in the sliding groove (410) from top to bottom, a lifting screw rod (411) penetrates through the upper end of the valve body (1) in a sliding manner, the lower end of the lifting screw rod (411) is arranged in the sliding groove (410), a fixed welding manner, the lifting screw rod (411) is fixedly arranged at the top of the mounting frame (412) through a bearing, an adjusting handle (413) is fixedly arranged at the upper end of the lifting screw rod (411), and a display branched chain (48) is arranged on the side wall of the mounting frame (412);
the flow velocity adjusting mechanism (3) comprises a flow limiting plate (31), a baffle (32), a sealing gasket (33), a sealing ring (34), a limiting groove (35), a limiting spring (36), a moving groove (37), a sleeve (38) and a rotating rod (39), wherein the flow limiting plate (31) is fixedly arranged inside the valve body (1), the flow limiting plate (31) is positioned on the right side of a flow limiting block (42), the baffle (32) is arranged on the right side of the flow limiting plate (31), the limiting groove (35) is circumferentially arranged on the inner wall of the valve body (1), the baffle (32) is slidably arranged in the limiting groove (35), the sealing gasket (33) is arranged on one side, close to the baffle (32), of the flow limiting plate (31), the baffle (32) is in sliding sealing fit with the flow limiting plate (31) through the sealing gasket (33), the sealing ring (34) is arranged on the left end face and, the baffle (32) is in sliding fit with the limit groove (35) through a sealing ring (34), the lower end of the baffle (32) is evenly provided with a limiting spring (36) from front to back, the lower end of the limiting spring (36) is fixedly arranged at the bottom of the limiting groove (35), the upper end of the valve body (1) is provided with a moving groove (37), the lower end of the moving groove (37) is communicated with a limit groove (35), a sleeve (38) is arranged in the moving groove (37) in a sliding way, the sleeve (38) is integrally of a round hollow shell structure with an opening at the upper end, the lower end surface of the sleeve (38) is in contact fit with the upper end surface of the baffle plate (32), the hollow inner wall of the sleeve (38) is provided with internal threads, the sleeve (38) is in threaded connection with the rotating rod (39) through the internal threads, the rotating rod (39) is fixedly installed on the valve body (1) through a bearing.
2. A precision flow control valve according to claim 1, wherein: the adjusting branched chain (44) comprises an adjusting rod (441), an adjusting spring (442), a piston plate (443), a pressure membrane (444), a connecting pipe (445) and an adjusting frame (446), the lower end face of the adjusting block (46) is fixedly connected with the adjusting rod (441), the adjusting rod (441) is in sliding connection with the flow limiting block (42), the piston plate (443) is fixedly welded at the lower end of the adjusting rod (441), the adjusting spring (442) is located between the lower end faces of the piston plate (443) and the flow limiting block (42), the adjusting frame (446) is fixedly installed at the lower end face of the flow limiting block (42), the adjusting frame (446) is of a shell structure with a hollow interior, the piston plate (443) is slidably arranged inside the adjusting frame (446), the pressure membrane (444) is fixedly installed inside the adjusting frame (446), and the pressure membrane (444) is located at the lower end of the piston plate (443), the adjusting rod (441) is sleeved with an adjusting spring (442), the lower end of the adjusting frame (446) is fixedly connected with a connecting pipe (445), the connecting pipe (445) is communicated with a closed space formed by the inside of the adjusting frame (446) and the pressure membrane (444), the other end of the connecting pipe (445) is connected with a fixing plate (41) on the left side of the flow limiting block (42), and the other end of the connecting pipe (445) is communicated with the inside of a valve body (1) on the left side of the flow limiting block (42).
3. A precision flow control valve according to claim 1, wherein: the display branch chain (48) comprises a display disc (481), a pointer (482) and a moving block (483), the lifting screw rod (411) is sleeved with the moving block (483) in a threaded connection mode, the moving block is arranged inside the mounting frame (412) in a sliding mode, the pointer (482) is fixed on the outer side wall of the moving block (483), and the display disc (481) is fixedly mounted on the side wall of the mounting frame (412) to which the pointer (482) points.
4. A precision flow control valve according to claim 1, wherein: sealing plates (46a) are fixedly mounted on the left end face and the right end face of the adjusting block (46), and the adjusting block (46) slides up and down in the adjusting groove (45) through the sealing plates (46 a).
5. A precision flow control valve according to claim 1, wherein: the flow limiting plate is characterized in that flow limiting holes (31b) are uniformly formed in the left end face and the right end face of the flow limiting plate (31), and through holes (31c) matched with the flow limiting holes (31b) are formed in the left end face and the right end face of the baffle plate (32).
6. A precision flow control valve according to claim 1, wherein: ring flange (2) fixed seal install terminal surface department about valve body (1), the terminal surface that valve body (1) was kept away from in ring flange (2) is provided with sealing ring (21), evenly set up threaded hole (22) in ring flange (2) terminal surface edge circumference, valve body (1) is through ring flange (2) and sealing ring (21) on it and pipeline looks sealing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423739.5A CN112460304A (en) | 2020-12-08 | 2020-12-08 | Flow precision control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011423739.5A CN112460304A (en) | 2020-12-08 | 2020-12-08 | Flow precision control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112460304A true CN112460304A (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011423739.5A Withdrawn CN112460304A (en) | 2020-12-08 | 2020-12-08 | Flow precision control valve |
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| Country | Link |
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| CN (1) | CN112460304A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156511A (en) * | 2021-10-25 | 2022-03-08 | 嘉寓氢能源科技(辽宁)有限公司 | Combined heat and power system based on fuel cell |
| CN114427388A (en) * | 2022-02-17 | 2022-05-03 | 吴巧英 | Combined type adjusting Christmas tree based on internal flow positioning for oil extraction in oil field |
| CN116519066A (en) * | 2023-06-07 | 2023-08-01 | 中国铁塔股份有限公司黑龙江省分公司 | Monitoring and measuring device for flow of wetland water channel |
-
2020
- 2020-12-08 CN CN202011423739.5A patent/CN112460304A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114156511A (en) * | 2021-10-25 | 2022-03-08 | 嘉寓氢能源科技(辽宁)有限公司 | Combined heat and power system based on fuel cell |
| CN114156511B (en) * | 2021-10-25 | 2023-11-14 | 嘉寓氢能源科技(辽宁)有限公司 | Combined heat and power system based on fuel cell |
| CN114427388A (en) * | 2022-02-17 | 2022-05-03 | 吴巧英 | Combined type adjusting Christmas tree based on internal flow positioning for oil extraction in oil field |
| CN116519066A (en) * | 2023-06-07 | 2023-08-01 | 中国铁塔股份有限公司黑龙江省分公司 | Monitoring and measuring device for flow of wetland water channel |
| CN116519066B (en) * | 2023-06-07 | 2023-09-01 | 中国铁塔股份有限公司黑龙江省分公司 | Monitoring and measuring device for flow of wetland water channel |
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Application publication date: 20210309 |