CN117628214B - Double-acting throttle stop valve - Google Patents
Double-acting throttle stop valve Download PDFInfo
- Publication number
- CN117628214B CN117628214B CN202410105370.5A CN202410105370A CN117628214B CN 117628214 B CN117628214 B CN 117628214B CN 202410105370 A CN202410105370 A CN 202410105370A CN 117628214 B CN117628214 B CN 117628214B
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- valve
- piston
- sleeve
- side wall
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 238000007789 sealing Methods 0.000 claims description 55
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 37
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007790 scraping Methods 0.000 description 6
- 238000002788 crimping Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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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
- F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
- F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- 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
- F16K3/22—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 sealing faces shaped as surfaces of solids of revolution
- F16K3/24—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 sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/243—Packings
-
- 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
-
- 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
- F16K3/32—Means for additional adjustment of the rate of flow
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/01—Damping of valve members
- F16K47/012—Damping of valve members by means of a resilient damping element
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The application discloses two effect throttle stop valves relates to the technical field of valve, which comprises a valve body, be provided with water inlet valve pocket and play water valve pocket in the valve body, water inlet and delivery port have been seted up to the lateral wall of valve body, the connector with play water valve pocket intercommunication has been seted up to the lateral wall of water inlet valve pocket, play water valve pocket internal fixation is provided with the throttle sleeve, throttle sleeve and connector intercommunication, a plurality of water through openings with play water valve pocket intercommunication have been seted up to the throttle sleeve's lateral wall, each water through opening distributes along the circumference of throttle sleeve, the water through opening is offered along throttle sleeve's length direction spiral, and the lateral wall slope of water through opening sets up, fixedly be provided with a plurality of baffles on the lateral wall of water valve pocket, slide in the throttle sleeve and be provided with the case, the connector internal fixation is provided with the disk seat, and the case is used for the butt disk seat, be provided with on the valve body and be used for driving the gliding actuating assembly of case. The valve has the effect of improving the stability of the fluid pressure at the outlet end of the valve body.
Description
Technical Field
The application relates to the technical field of valves, in particular to a double-acting throttle stop valve.
Background
The throttle valve is a valve for controlling the flow of fluid by changing the throttle section or the throttle length, and is mainly used in conveying pipelines of oil and gas well stations, long-distance oil and gas conveying pipelines, oil reservoirs, gas reservoirs, liquefied natural gas receiving stations and the like.
The inside of the throttle valve is provided with a throttle sleeve and a valve seat, the opening and closing piece of the throttle valve is a plug-shaped valve core, the sealing surface of the valve core is a plane or a conical surface, the valve core moves in the direction of the central line of the valve seat in a straight line in the throttle sleeve, according to the moving mode of the valve core, the through flow of the valve body is determined according to the plugging area of the valve core to the water through hole on the throttle sleeve, so the throttle valve is very suitable for regulating the flow of fluid, and because the valve core stroke of the valve is relatively short and has a very reliable cutting function, the valve of the type is usually used for cutting or regulating and throttling.
However, in the existing throttle valve, when the valve is opened, the fluid pressure at the outlet end of the valve body changes along with the flow rate change of the valve body, so that the stability of the fluid pressure at the outlet end of the valve body is poor.
Disclosure of Invention
In order to solve the problem of poor stability of fluid pressure at the outlet end of the valve body, the application provides a double-acting throttle stop valve.
The application provides a double-acting throttle stop valve adopts following technical scheme:
the utility model provides a double-acting throttle stop valve, includes the valve body, be provided with water inlet valve pocket and play water valve pocket in the valve body, water inlet and delivery port have been seted up to the lateral wall of valve body, water inlet and water inlet valve pocket intercommunication, delivery port and play water valve pocket intercommunication, the connector with play water valve pocket intercommunication has been seted up to the lateral wall of water valve pocket, play water valve pocket internal fixation is provided with the throttle sleeve, the throttle sleeve communicates with the connector, the lateral wall of throttle sleeve has seted up a plurality of water inlets with play water valve pocket intercommunication, each the water inlet distributes along the circumference of throttle sleeve, the water inlet is offered along the length direction spiral of throttle sleeve, just the lateral wall slope of water inlet sets up, fixedly be provided with a plurality of baffles on the lateral wall of water valve pocket, the slide is provided with the case in the throttle sleeve, the connector internal fixation is provided with the disk seat, just the case is used for the butt disk seat, be provided with on the valve body and be used for driving the gliding drive assembly of case.
By adopting the technical scheme, fluid enters the water inlet valve cavity through the water inlet, the valve core is driven to slide in the throttling sleeve through the driving assembly, so that the water through hole on the throttling sleeve is opened, and the fluid in the water inlet valve cavity enters the throttling sleeve and enters the water outlet valve cavity through the water through hole and then flows out from the water outlet; the valve core slides in the throttling sleeve, the opening and closing sizes of the water through holes are adjusted, the through flow of the valve body is adjusted, when fluid enters the water outlet valve cavity through the water through holes, the fluid flows out along the opening direction of the water through holes under the guidance of the inner wall of the throttling sleeve, the fluid forms vortex in the water outlet valve cavity through the side wall of the water through holes and flows along the cavity wall of the water outlet valve cavity, and then most impact force of the fluid in the water outlet valve cavity is reduced through the baffle plates, so that the fluid pressure is relatively stable when the fluid is discharged from the water outlet.
Optionally, a mounting port communicated with the water outlet valve cavity is formed in the side wall of the valve body, the throttling sleeve penetrates through the mounting port and is communicated with the mounting port, a valve cover is detachably arranged on the valve body, the valve cover is fixed at the position of the mounting port and is used for sealing the mounting port, and a first fixing piece for fixing the valve cover is arranged on the valve body; the valve core is arranged on the valve cover.
Through adopting above-mentioned technical scheme, because the choke valve is after using certain time, each spare part of choke valve is ageing or damage easily, through dismantling the valve gap from the valve body, when the valve gap was dismantled, take out the case from in the choke sleeve, can maintain the spare part of damage in the valve body, convenient and fast when maintaining the choke valve.
Optionally, the drive assembly includes the swivel nut of fixed setting on the valve lid, wears to establish the double-screw bolt in the swivel nut and is used for driving the pivoted driving piece of double-screw bolt, the external screw thread has been seted up to the lateral wall of double-screw bolt and with swivel nut looks adaptation, the double-screw bolt rotates with the case to be connected.
Optionally, the driving piece is including rotating the transfer line that sets up on the valve lid to and the fixed hand wheel that sets up on the transfer line, the spout has been seted up along the length direction of double-screw bolt to the one end that the case was kept away from to the double-screw bolt, the transfer line slides and wears to establish in the spout, the fixed stopper that is provided with of lateral wall of transfer line, the spacing groove has been seted up along the length direction of double-screw bolt to the lateral wall of spout, the stopper slides and sets up in the spacing inslot.
Optionally, the case includes first piston, second piston and sealed gum cover, first piston and double-screw bolt rotate to be connected, the second piston slides along the length direction of double-screw bolt and sets up in the one side that the double-screw bolt was kept away from to first piston, the second piston is close to the fixed connecting rod that is provided with of one end of first piston, connecting rod and first piston sliding connection, be provided with on the first piston and be used for driving the gliding elastic component of second piston to keeping away from first piston direction, the second piston is used for the butt disk seat, sealed gum cover is established on first piston, the fixed driving ring that is provided with of lateral wall of connecting rod, fixed being provided with on the inside wall of sealed gum cover is from the moving ring, the driving ring is used for the butt to follow the moving ring to drive sealed gum cover outwards to expand.
Through adopting above-mentioned technical scheme, the case slides to being close to the disk seat direction in the throttle sleeve when closing, and the second piston earlier with the disk seat butt, along with first piston continues to slide, the second piston is close to first piston gradually, and at this moment, actuating ring and driven ring butt, and then make the outside inflation of sealed gum cover to the telescopic inside wall of butt throttle, improvement case is to the telescopic sealed effect of throttle.
Optionally, the diameter of the outer side wall of the driving ring gradually decreases along the direction away from the second piston, and the diameter of the inner side wall of the driven ring gradually increases along the direction close to the second piston.
Optionally, the one end that the second piston kept away from first piston is fixed vertically has scrapes the wall ring, scrape the inside wall slope setting of wall ring, just scrape the internal diameter of wall ring along the direction of keeping away from the second piston and increase gradually, scrape wall ring and throttling sleeve looks adaptation.
Optionally, the throttling sleeve is detachably arranged in the mounting port, a sealing groove communicated with the mounting port is formed in the side wall of the valve body, a first sealing rubber ring is arranged in the sealing groove, a crimping part is arranged on the valve cover, and the crimping part is used for abutting against the sleeve and the first sealing rubber ring; the lateral wall of play water valve pocket has seted up the mounting groove with connector intercommunication, mounting groove and disk seat looks adaptation, just the disk seat is placed in the mounting groove, be provided with the second seal rubber ring between disk seat and the lateral wall of mounting groove, the throttling sleeve is used for the butt second seal rubber ring and compresses tightly the disk seat in the mounting groove.
Through adopting above-mentioned technical scheme, compress tightly the throttling sleeve through the crimping portion on the valve bonnet, and then fix the throttling sleeve to compress tightly the disk seat and fix in the mounting groove, make throttling sleeve and disk seat all can dismantle the setting on the valve body, when maintaining the valve body inside, can maintain or change throttling sleeve and disk seat, increase the practicality.
Optionally, a drain communicated with the water inlet valve cavity is formed in the side wall of the valve body, an end cover for sealing the drain is arranged on the valve body, and a second fixing piece for fixing the end cover is arranged on the valve body.
Optionally, a placing groove communicated with the sewage outlet is formed in the valve body, a sealing gasket is arranged in the placing groove, and the sealing gasket is used for abutting against the end cover.
In summary, the present application includes at least one of the following beneficial technical effects:
1. fluid enters the water inlet valve cavity through the water inlet, the valve core is driven to slide in the throttling sleeve through the driving assembly, the water through hole on the throttling sleeve is opened, the fluid in the water inlet valve cavity enters the throttling sleeve, enters the water outlet valve cavity through the water through hole, and then flows out of the water outlet; the valve core slides in the throttling sleeve, the opening and closing sizes of the water through holes are adjusted, the through flow of the valve body is adjusted, when fluid enters the water outlet valve cavity through the water through holes, the fluid flows out along the opening direction of the water through holes under the guidance of the inner wall of the throttling sleeve, the fluid forms vortex in the water outlet valve cavity through the side wall of the water through holes and flows along the cavity wall of the water outlet valve cavity, and then most impact force of the fluid in the water outlet valve cavity is reduced through the baffle plates, so that the fluid pressure is relatively stable when the fluid is discharged from the water outlet.
2. When the throttle valve is closed, the valve core slides in the throttle sleeve towards the direction close to the valve seat, the second piston is abutted against the valve seat, the second piston is gradually close to the first piston along with the continuous sliding of the first piston, at the moment, the driving ring is abutted against the driven ring, so that the sealing rubber sleeve is expanded outwards and abuts against the inner side wall of the throttle sleeve, and the sealing effect of the valve core on the throttle sleeve is improved.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of an embodiment of the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic diagram of an embodiment of the present application for expressing a throttle sleeve.
Reference numerals illustrate: 1. a valve body; 101. a water inlet valve cavity; 102. a water outlet valve cavity; 103. a water inlet; 104. a water outlet; 105. a connection port; 106. a mounting port; 107. a valve cover; 108. a first fixing member; 109. a sewage outlet; 110. an end cap; 111. a second fixing member; 112. a sealing gasket; 113. a mounting groove; 114. a valve seat; 115. a crimping part; 116. a first sealing rubber ring; 117. the second sealing rubber ring; 118. a flow baffle; 119. a screw sleeve; 120. a stud; 121. a transmission rod; 122. a hand wheel; 2. a throttle sleeve; 21. a water-through port; 3. a valve core; 31. a first piston; 311. a connecting groove; 32. a second piston; 33. sealing the rubber sleeve; 331. a slave ring; 34. a connecting rod; 341. a drive ring; 35. an elastic member; 36. a wall scraping ring.
Detailed Description
The present application is described in further detail below in conjunction with fig. 1-3.
The embodiment of the application discloses a double-acting throttling stop valve. Referring to fig. 1, the valve comprises a valve body 1, wherein a water inlet valve cavity 101 and a water outlet valve cavity 102 are arranged in the valve body 1, the water inlet valve cavity 101 and the water outlet valve cavity 102 are mutually independent, a water inlet 103 and a water outlet 104 are formed in the side wall of the valve body 1, the water inlet 103 is communicated with the water inlet valve cavity 101, the water outlet 104 is communicated with the water outlet valve cavity 102, a connecting port 105 communicated with the water outlet valve cavity 102 is formed in the side wall of the water inlet valve cavity 101, a mounting port 106 communicated with the water outlet valve cavity 102 is formed in the side wall of the valve body 1, the connecting port 105 is opposite to the mounting port 106, and a valve cover 107 is fixedly arranged on the valve body 1 and located at the position of the mounting port 106.
Referring to fig. 1, a valve body 1 is provided with a first fixing member 108 for fixing a valve cover 107, the first fixing member 108 includes a plurality of first screws fixed on a side wall of the valve body 1, each first screw is separately provided at an outer periphery of the mounting port 106, a length direction of each first screw is parallel to a central axis direction of the mounting port 106, the valve cover 107 is provided with a plurality of first through holes, positions of the first through holes are in one-to-one correspondence with positions of the first screws on the valve body 1, and each first screw is in threaded connection with a first nut.
Referring to fig. 1, a drain 109 communicating with a water inlet valve cavity 101 is provided at the bottom of a valve body 1, an end cover 110 for closing the drain 109 is provided on the valve body 1, a second fixing part 111 for fixing the end cover 110 is provided on the valve body 1, the second fixing part 111 comprises a plurality of second screws fixedly arranged on the valve body 1, each screw is separately arranged around the drain 109, the length directions of the second screws are parallel, a plurality of second through holes are provided on the side wall of the end cover 110, the positions of the second through holes correspond to the positions of the second screws on the valve body 1 one by one, and each second screw is connected with a second nut in a threaded manner.
Referring to fig. 1, a placement groove communicated with a sewage outlet 109 is formed in a valve body 1, a sealing gasket 112 is arranged in the placement groove, the sealing gasket 112 is a metal sealing gasket, when the sewage outlet 109 is sealed by an end cover 110, a gap between the end cover 110 and the valve body 1 is sealed by the sealing gasket 112, and the sealing effect on the sewage outlet 109 is improved.
Referring to fig. 1 and 2, a throttle sleeve 2 is arranged in a water outlet valve cavity 102, the throttle sleeve 2 is matched with an installation opening 106, the throttle sleeve 2 is arranged in the installation opening 106 in a penetrating manner, an installation groove 113 communicated with a connection opening 105 is formed in the side wall of the water outlet valve cavity 102, a valve seat 114 is fixedly arranged in the installation groove 113, the valve seat 114 is matched with the installation groove 113, a compression joint portion 115 is arranged on a valve cover 107, and the compression joint portion 115 and the valve cover 107 are integrally formed.
Referring to fig. 1 and 2, a sealing groove communicated with the mounting port 106 is formed in the side wall of the valve body 1, a first sealing rubber ring 116 is arranged in the sealing groove, the first sealing rubber ring 116 is sleeved on the throttling sleeve 2, a second sealing rubber ring 117 is arranged between the valve seat 114 and the side wall of the mounting groove 113, and the second sealing rubber ring 117 is sleeved on the valve seat 114.
When the valve cover 107 is mounted on the valve body 1, the second sealing rubber ring 117 is sleeved on the valve seat 114, the valve seat 114 is mounted in the mounting groove 113, the throttling sleeve 2 is inserted into the mounting opening 106, the bottom end of the throttling sleeve 2 is abutted against the second sealing rubber ring 117, the first sealing rubber ring 116 is placed in the sealing groove of the valve body 1, finally, the valve cover 107 is fixed on the valve body 1, the crimping part 115 on the valve cover 107 is used for compressing the throttling sleeve 2 and the first sealing rubber ring 116, further, the throttling sleeve 2 is fixed, the valve seat 114 is compressed and fixed in the mounting groove 113, at the moment, the gap between the throttling sleeve 2 and the side wall of the mounting opening 106 is sealed through the first sealing rubber ring 112, and the gap between the valve seat 114 and the side wall of the connecting opening 105 and the gap between the valve seat 114 and the throttling sleeve 2 is sealed through the second sealing rubber ring 117; when the valve body 1 is maintained, the valve cover 107 is detached from the valve body 1, so that the throttle sleeve 2 and the valve seat 114 can be maintained or replaced, and the practicability is improved.
Referring to fig. 2 and 3, the side wall of the throttling sleeve 2 is provided with a plurality of water through holes 21 communicated with the water outlet valve cavity 102, the water through holes 21 are distributed along the circumferential direction of the throttling sleeve 2, the water through holes 21 are spirally formed along the length direction of the throttling sleeve 2, the opening directions of the water through holes 21 are consistent, the side wall of the water through holes 21 is obliquely arranged, the side wall of the water outlet valve cavity 102 is fixedly provided with a plurality of baffle plates 118, when fluid enters the water outlet valve cavity 102 through the water through holes 21, the fluid flows out along the opening direction of the water through holes 21 under the guidance of the inner wall of the throttling sleeve 2, the fluid forms a vortex in the water outlet valve cavity 102 through the side wall of the water through holes 21 and flows along the cavity wall of the water outlet valve cavity 102, and then most of impact force of the fluid in the water outlet valve cavity 102 is reduced through the baffle plates 118, so that the fluid pressure is relatively stable when the fluid is discharged from the water outlet 104 to the valve body 1.
Referring to fig. 1 and 2, a valve core 3 is slidably arranged in a throttle sleeve 2, a driving assembly for driving the valve core 3 to slide is arranged on a valve cover 107, the driving assembly comprises a threaded sleeve 119 fixedly arranged on the valve cover 107, a stud 120 penetrating through the threaded sleeve 119, and a driving piece for driving the stud 120 to rotate, external threads are formed on the side wall of the stud 120 and are matched with the threaded sleeve 119, the stud 120 is in threaded fit with the threaded sleeve 119, the stud 120 is in rotary connection with the valve core 3, and when the valve cover 107 is installed, the axial direction of the stud 120 is parallel to the axial direction of the throttle sleeve 2.
Referring to fig. 1, the driving part includes a driving rod 121 rotatably disposed on the valve cover 107, and a hand wheel 122 fixedly disposed on the driving rod 121, wherein the length direction of the driving rod 121 is parallel to the length direction of the stud 120, a chute is formed at one end of the stud 120 far away from the valve core 3 along the length direction of the stud 120, the driving rod 121 is slidably disposed in the chute, a limiting block is fixedly disposed on a side wall of the driving rod 121, a limiting groove is formed at a side wall of the chute along the length direction of the stud 120, and the limiting block is slidably disposed in the limiting groove; by rotating the hand wheel 122, the driving rod 121 is driven to rotate, the stud 120 rotates and slides along the length direction of the screw sleeve 119, the valve core 3 is driven to slide in the throttling sleeve 2, the opening and closing sizes of the water ports 21 are adjusted, and the hand wheel 122 does not slide along the axial direction of the stud 120 along with the stud 120 when rotating due to the fact that the driving rod 121 is in sliding fit with the stud 120.
Referring to fig. 1 and 2, the valve core 3 includes a first piston 31, a second piston 32 and a sealing rubber sleeve 33, the first piston 31 is rotationally connected with the stud 120, the second piston 32 is slidably arranged on one side of the first piston 31 far away from the stud 120 along the length direction of the stud 120, a connecting rod 34 is fixedly arranged at one end of the second piston 32 near the first piston 31, a connecting groove 311 is formed at one end of the first piston 31 far away from the stud 120 along the length direction of the stud 120, the connecting rod 34 is slidably arranged in the connecting groove 311 in a penetrating manner, an anti-falling block is fixedly arranged on the side wall of the connecting rod 34, an anti-falling groove is formed at the side wall of the connecting groove 311 along the length direction of the connecting rod 34, an elastic piece 35 for driving the second piston 32 to slide far away from the first piston 31 is slidably arranged on the first piston 31, the elastic piece 35 includes a compression spring, the compression spring is arranged in the connecting groove 311, one end of the compression spring is in the bottom wall of the connecting groove 311 is abutted against the bottom wall of the connecting groove 311, and the other end of the compression spring is abutted against the connecting rod 34.
Referring to fig. 2, a sealing rubber sleeve 33 is sleeved on a first piston 31, a driving ring 341 is fixedly arranged on the side wall of a connecting rod 34, a driven ring 331 is fixedly arranged on the inner side wall of the sealing rubber sleeve 33, the diameter of the outer side wall of the driving ring 341 gradually decreases along the direction away from a second piston 32, the diameter of the inner side wall of the driven ring 331 gradually increases along the direction close to the second piston 32, when the throttle valve is closed, a valve core 3 slides in the throttle sleeve 2 towards the direction close to a valve seat 114, the second piston 32 is firstly abutted with the valve seat 114, and along with the continuous sliding of the first piston 31, the second piston 32 gradually approaches the first piston 31, at the moment, the driving ring 341 abuts with the driven ring 331, and the driven ring 331 is extruded through the driving ring 341, so that the sealing rubber sleeve 33 is driven to expand outwards, and abuts against the inner side wall of the throttle sleeve 2, and the sealing effect of the valve core 3 on the throttle sleeve 2 is improved.
Referring to fig. 2, a wall scraping ring 36 is fixed and vertically arranged at one end of the second piston 32 far from the first piston 31, the inner side wall of the wall scraping ring 36 is obliquely arranged, the inner diameter of the wall scraping ring 36 is gradually increased along the direction far from the second piston 32, and the wall scraping ring 36 is matched with the throttling sleeve 2; because the fluid generally contains impurities, the impurities are easy to adhere to the inner side wall of the throttle sleeve 2 and rub against the sealing rubber sleeve 33 in the use process of the valve body 1, the sealing rubber sleeve 33 is damaged, and the impurities adhered to the inner wall of the throttle sleeve 2 are cleaned up firstly in the sliding process of the second piston 32 in the throttle sleeve 2 through the arrangement of the wall scraping ring 36, so that the mutual friction between the sealing rubber sleeve 33 and the impurities on the inner wall of the throttle sleeve 2 is avoided, and the service life of the sealing rubber sleeve 33 is prolonged.
The implementation principle of the double-acting throttle stop valve provided by the embodiment of the application is as follows: fluid enters the water inlet valve cavity 101 through the water inlet 103, the valve core 3 is driven to slide in the throttling sleeve 2 through the rotating handle, the water through hole 21 on the throttling sleeve 2 is opened, the fluid in the water inlet valve cavity 101 enters the throttling sleeve 2 and enters the water outlet valve cavity 102 through the water through hole 21, and then flows out of the water outlet 104; as the valve core 3 slides in the throttling sleeve 2, the opening and closing sizes of the water ports 21 are adjusted, so that the flow rate of the valve body 1 is adjusted, when fluid enters the water outlet valve cavity 102 through the water ports 21, the fluid flows out along the opening direction of the water ports 21 under the guidance of the inner wall of the throttling sleeve 2, and the fluid forms vortex in the water outlet valve cavity 102 through the side wall of the water ports 21 and flows along the cavity wall of the water outlet valve cavity 102, and then most of the impact force of the fluid in the water outlet valve cavity 102 is reduced through the baffle plates 118, so that the fluid pressure is relatively stable when the fluid is discharged from the water outlet 104 to the valve body 1.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. A double-acting throttling stop valve, characterized in that: comprises a valve body (1), a water inlet valve cavity (101) and a water outlet valve cavity (102) are arranged in the valve body (1), a water inlet (103) and a water outlet (104) are formed in the side wall of the valve body (1), the water inlet (103) is communicated with the water inlet valve cavity (101), the water outlet (104) is communicated with the water outlet valve cavity (102), a connecting port (105) communicated with the water outlet valve cavity (102) is formed in the side wall of the water inlet valve cavity (101), a throttling sleeve (2) is fixedly arranged in the water outlet valve cavity (102), the throttling sleeve (2) is communicated with the connecting port (105), a plurality of water inlets (21) communicated with the water outlet valve cavity (102) are formed in the side wall of the throttling sleeve (2), the water inlets (21) are distributed along the circumferential direction of the throttling sleeve (2), the water inlets (21) are spirally formed in the length direction of the throttling sleeve (2), the side wall of the water inlets (21) is obliquely arranged, a plurality of flow blocking plates (118) are fixedly arranged on the side wall of the water outlet valve cavity (102), the throttling sleeve (2) is fixedly connected with the connecting port (105), the valve seat (114), the valve body (1) is provided with a driving assembly for driving the valve core (3) to slide;
the valve core (3) comprises a first piston (31), a second piston (32) and a sealing rubber sleeve (33), the first piston (31) is rotationally connected with a stud (120), the second piston (32) is arranged on one side, far away from the stud (120), of the first piston (31) in a sliding mode along the length direction of the stud (120), a connecting rod (34) is fixedly arranged at one end, close to the first piston (31), of the second piston (32), the connecting rod (34) is in sliding connection with the first piston (31), an elastic piece (35) used for driving the second piston (32) to slide along the direction far away from the first piston (31) is arranged on the first piston (31), the second piston (32) is used for abutting against a valve seat (114), the sealing rubber sleeve (33) is sleeved on the first piston (31), a driving ring (341) is fixedly arranged on the inner side wall of the sealing rubber sleeve (33), and the driving ring (341) is used for abutting against the sealing rubber sleeve (331) to expand outwards.
2. A double acting throttling cut-off valve according to claim 1, characterized in that: the valve body (1) is characterized in that a mounting port (106) communicated with the water outlet valve cavity (102) is formed in the side wall of the valve body (1), the throttling sleeve (2) is arranged in the mounting port (106) in a penetrating mode and is communicated with the mounting port (106), a valve cover (107) is detachably arranged on the valve body (1), the valve cover (107) is fixed at the position of the mounting port (106) and is used for sealing the mounting port (106), and a first fixing piece (108) used for fixing the valve cover (107) is arranged on the valve body (1); the valve core (3) is arranged on the valve cover (107).
3. A double acting throttling cut-off valve according to claim 2, characterized in that: the driving assembly comprises a screw sleeve (119) fixedly arranged on the valve cover (107), a stud (120) penetrating through the screw sleeve (119) and a driving piece for driving the stud (120) to rotate, wherein the side wall of the stud (120) is provided with external threads and is matched with the screw sleeve (119), and the stud (120) is rotationally connected with the valve core (3).
4. A double acting throttling cut-off valve according to claim 3, characterized in that: the driving piece comprises a driving rod (121) arranged on a valve cover (107) in a rotating mode and a hand wheel (122) fixedly arranged on the driving rod (121), one end, far away from a valve core (3), of the stud (120) is provided with a sliding groove along the length direction of the stud (120), the driving rod (121) is arranged in the sliding groove in a sliding mode in a penetrating mode, the side wall of the driving rod (121) is fixedly provided with a limiting block, the side wall of the sliding groove is provided with a limiting groove along the length direction of the stud (120), and the limiting block is arranged in the limiting groove in a sliding mode.
5. A double acting throttling cut-off valve according to claim 1, characterized in that: the diameter of the outer side wall of the driving ring (341) gradually decreases along the direction away from the second piston (32), and the diameter of the inner side wall of the driven ring (331) gradually increases along the direction approaching the second piston (32).
6. A double acting throttling cut-off valve according to claim 1, characterized in that: the one end that second piston (32) kept away from first piston (31) is fixed vertically has scrapes wall ring (36), scrape the inside wall slope setting of wall ring (36), just scrape the internal diameter of wall ring (36) along the direction of keeping away from second piston (32) and increase gradually, scrape wall ring (36) and throttle sleeve (2) looks adaptation.
7. A double acting throttling cut-off valve according to claim 2, characterized in that: the throttle sleeve (2) is detachably arranged in the mounting port (106), a sealing groove communicated with the mounting port (106) is formed in the side wall of the valve body (1), a first sealing rubber ring (116) is arranged in the sealing groove, a compression joint part (115) is arranged on the valve cover (107), and the compression joint part (115) is used for abutting against the sleeve and the first sealing rubber ring (116); the side wall of the water outlet valve cavity (102) is provided with a mounting groove (113) communicated with the connecting port (105), the mounting groove (113) is matched with the valve seat (114), the valve seat (114) is placed in the mounting groove (113), a second sealing rubber ring (117) is arranged between the valve seat (114) and the side wall of the mounting groove (113), and the throttling sleeve (2) is used for abutting against the second sealing rubber ring (117) and tightly pressing the valve seat (114) in the mounting groove (113).
8. A double acting throttling cut-off valve according to claim 1, characterized in that: the side wall of the valve body (1) is provided with a drain outlet (109) communicated with the water inlet valve cavity (101), the valve body (1) is provided with an end cover (110) for closing the drain outlet (109), and the valve body (1) is provided with a second fixing piece (111) for fixing the end cover (110).
9. A double acting throttling cut-off valve according to claim 8, characterized in that: a placing groove communicated with the sewage outlet (109) is formed in the valve body (1), a sealing gasket (112) is arranged in the placing groove, and the sealing gasket (112) is used for abutting against the end cover (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410105370.5A CN117628214B (en) | 2024-01-25 | 2024-01-25 | Double-acting throttle stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410105370.5A CN117628214B (en) | 2024-01-25 | 2024-01-25 | Double-acting throttle stop valve |
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| CN117628214A CN117628214A (en) | 2024-03-01 |
| CN117628214B true CN117628214B (en) | 2024-03-29 |
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| CN202410105370.5A Active CN117628214B (en) | 2024-01-25 | 2024-01-25 | Double-acting throttle stop valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117869602B (en) * | 2024-03-11 | 2024-05-03 | 四川中油乐仪能源装备制造股份有限公司 | Throttle cut-off emptying valve |
| CN118775550B (en) * | 2024-09-11 | 2024-12-03 | 四川中油乐仪能源装备制造股份有限公司 | Stop valve |
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