CN109237090B - Throttle valve with constant outlet flow - Google Patents
Throttle valve with constant outlet flow Download PDFInfo
- Publication number
- CN109237090B CN109237090B CN201811333463.4A CN201811333463A CN109237090B CN 109237090 B CN109237090 B CN 109237090B CN 201811333463 A CN201811333463 A CN 201811333463A CN 109237090 B CN109237090 B CN 109237090B
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- Prior art keywords
- hole
- valve
- spring
- flow
- valve seat
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- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B01D35/046—Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The application provides a choke valve that export flow is invariable, belong to the choke valve field, the choke valve includes the casing, the filler neck, the valve seat, valve and spring, casing and filler neck are fixed relatively with the axis, the valve, valve seat and spring set up in the circulation that casing and filler neck constitute, wherein, the valve has the first through-hole that sets up along circumference, the valve seat has second through-hole and the third through-hole that sets up along circumference, and the valve seat has the clearance that is used for the fluid circulation with the lateral wall of circulation, first through-hole and second through-hole intercommunication, the valve seat is under the effect of spring, adjust the area of first through-hole and second through-hole intercommunication in order to control the flow in the choke valve. The throttling valve with constant outlet flow can automatically keep the outlet flow constant when the inlet flow changes, and has the advantages of compact structure, light weight, high reliability and high condition precision. The application can be used for a hydraulic system with multiple actuators, and flow distribution of the hydraulic system is improved.
Description
Technical Field
The application belongs to the valve field, in particular to a throttling valve with constant outlet flow.
Background
The throttle valve is a flow control valve commonly used in hydraulic systems, and is generally used for buffering or flow limiting. The orifice size of a typical throttle valve is adjusted manually prior to use, and is not changed during use. However, when the flow rate of the hydraulic system changes, the flow rate through the throttle valve also changes correspondingly, so that the throttle valve does not play a role in throttling.
Disclosure of Invention
The purpose of this application is to provide a throttle valve with a constant outlet flow rate to solve any of the above problems.
The technical scheme of the application is as follows: the utility model provides a choke valve that export flow is invariable, the choke valve includes casing, filler pipe mouth, valve seat, valve and spring, casing and filler pipe mouth are fixed relatively with the axis, valve seat and spring set up in the circulation that casing and filler pipe mouth constitute, wherein, the valve has the first through-hole that sets up along circumference, the valve seat has second through-hole and the third through-hole that sets up along circumference, just the valve seat with the lateral wall of circulation has the clearance that is used for the fluid circulation, first through-hole with second through-hole intercommunication, the valve seat is under the effect of spring, adjusts first through-hole with the area of second through-hole intercommunication is with the flow in the control choke valve.
In an embodiment of the present application, the predetermined flow rate of the throttle valve is determined by the areas and numbers of the first through holes, the second through holes, and the third through holes.
The predetermined flow rate of the throttle valve is also determined by the elastic force of the spring.
And a first filter screen is arranged between the filler pipe nozzle and the valve and used for filtering impurities in the fluid.
And a second filter screen is arranged between the shell and the spring and used for filtering impurities in the fluid.
And a gasket is arranged between the spring and the second filter screen and used for protecting the second filter screen.
And a spring seat is arranged between the spring and the gasket and used for supporting the spring.
And a sealing ring is arranged between the shell and the pipe connecting nozzle and used for sealing.
The first through hole and the axis of the circulation hole form an included angle of 60-120 degrees, and the second through hole and the axis of the circulation hole form an included angle of 60-120 degrees.
The third through hole and the axis of the through hole form an included angle of 60-120 degrees.
The throttling valve with constant outlet flow can automatically keep the outlet flow constant when the inlet flow changes, and has the advantages of compact structure, light weight, high reliability and high condition precision. The application can be used for a hydraulic system with multiple actuators, and flow distribution of the hydraulic system is improved.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
Fig. 1 is a schematic view of the internal configuration of the throttle valve of the present application.
Reference numerals:
1-shell, 2-second filter screen, 3-gasket, 4-spring seat, 5-spring, 6-retainer ring, 7-sealing ring, 8-valve seat, 9-valve, 10-first filter screen, 11-gasket, 12-nozzle, 81-second through hole, 82-third through hole and 91-first through hole.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
In the description of the present application, the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the present application.
In order to solve prior art, the choke valve when the flow variation, the poor problem of throttle effect, this application provides a choke valve that export flow is invariable.
The throttle valve with constant outlet flow comprises a shell 1, a pipe connecting piece 12, a valve seat 8, a valve 9 and a spring 5, wherein the shell 1 and the pipe connecting piece 12 are coaxially and relatively fixed through threads, the outlet end and the inlet end of the shell 1 and the pipe connecting piece 12 can be installed in a hydraulic system using the throttle valve, the valve 9, the valve seat 8 and the spring 5 are arranged in a through hole formed by the shell 1 and the pipe connecting piece 12, the valve 9 is provided with a first through hole 91 arranged along the circumferential direction, the number of the first through holes 91 is at least one or more, the valve seat 8 is provided with a second through hole 81 and a third through hole 82 arranged along the circumferential direction, the number of the second through hole 81 and the third through hole 82 is at least one or more, and the valve seat 8 and the side wall of the through hole have a gap for fluid to flow through, under a rated state, the first through hole 91 is axially aligned with and communicates with the second through hole 81, and the valve seat 8 is slidable in the axial direction of the through hole by the spring 5, thereby adjusting the area of communication between the first through hole 91 and the second through hole 81 to control the flow rate in the throttle valve.
In the present application, the predetermined flow rate of the throttle valve may be determined by the through-hole areas and the numbers of the first through-holes 91, the second through-holes 81, and the third through-holes 82. For example, in order to increase the rated flow rate, the areas of the first through holes 91, the second through holes 81, and the third through holes 82 are increased, or the number of circumferential arrangements of the first through holes 91, the second through holes 81, and the third through holes 82 is increased.
In the present application, the predetermined flow rate of the throttle valve is also determined by the spring force of the spring 5. Since the spring force of the spring 5 is too small, and the spring 5 is easily compressed when the flow rate (flow velocity) increases, the magnitude of the rated flow rate can be controlled by the spring force of the spring 5.
In the present case, a first screen 10 is provided between the filler neck 12 and the shutter 9 for filtering impurities in the fluid. Since the gap between the valve seat 8 and the side wall of the flow opening cannot pass large particles in this application, the first strainer 10 is used to filter the material flowing into the gap in advance.
In the present application, a second screen 2 is provided between the housing 1 and the spring 5 for filtering impurities in the fluid. Because in this application, spring 5, valve seat 8 need move often, consequently can produce iron fillings, and second filter screen 2 in this application then can filter iron fillings, prevents that it from flowing into subordinate's system.
In the present application, since the spring 5 is a metallic substance and moves from time to time, a washer 3 is provided between the spring 5 and the second screen 2 for protecting the second screen 2.
In the present application, a spring seat 4 is provided between the spring 5 and the washer 3 for supporting the spring 5.
In the present case, a sealing ring is provided between the housing 1 and the filler neck 12 for sealing.
In the present application, the first through hole 91 may form an angle of 60 to 120 degrees with the axis of the flow hole, and the second through hole 81 used in cooperation with the first through hole 91 may also form an angle of 60 to 120 degrees with the axis of the flow hole.
In the present application, the third through-hole 82 is angled from 60 to 120 degrees from the axis of the through-hole.
The invariable choke valve of export flow of this application is at the during operation, and hydraulic oil gets into the choke valve through the import, gets rid of the back through filter screen 10 with impurity in the fluid, and fluid passes through-hole (orifice) on valve 9 and the valve seat 8, through filter screen 2 again, by the export outflow. When the flow between the inlet and the outlet is increased, the liquid in the gap between the valve seat 8 and the flow hole is increased, so that the pressure difference between the front and the back of the through hole is gradually increased, the pressure difference acts on the valve seat 8 to compress the spring 5, the matched flow area of the first through hole 91 and the second through hole 81 between the valve 9 and the valve seat 8 is reduced, and the passing flow is not changed. When the flow between the inlet and the outlet is reduced, the pressure difference is gradually reduced due to the reduction of the liquid in the gap between the valve seat 8 and the circulation hole, the force of the valve seat 8 under the action of the pressure difference is reduced, the spring 5 pushes the valve seat 8 back, and the circulation area between the valve 9 and the valve seat 8 is gradually increased, so that the flow is increased. The flow resistance change is generated on the valve seat 8 by the flow change, and the flow area between the valve 9 and the valve seat 8 is adjusted by the spring 5, so that the flow is basically unchanged, and the function of adjusting the flow to be constant is realized.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a choke valve that export flow is invariable, its characterized in that, the choke valve includes casing (1), filler pipe (12), valve seat (8), valve (9) and spring (5), casing (1) and filler pipe (12) are fixed relatively with the axis, valve (9), valve seat (8) and spring (5) set up in the through-flow that casing (1) and filler pipe (12) constitute, wherein, valve (9) have along first through-hole (91) that circumference set up, valve seat (8) have along second through-hole (81) and third through-hole (82) that circumference set up, just valve seat (8) with the lateral wall of through-flow has the clearance that is used for the fluid circulation, first through-hole (91) with second through-hole (81) intercommunication, valve seat (8) adjust under the effect of spring (5) first through-hole (91) with the area of second through-hole (81) intercommunication is in order to control the interior stream of choke valve Amount of the compound (A).
2. The throttle valve with constant outlet flow according to claim 1, wherein the predetermined flow rate of the throttle valve is determined by the area and number of the first through hole (91), the second through hole (81) and the third through hole (82).
3. The throttle valve with constant outlet flow according to claim 1 or 2, characterized in that the predetermined flow of the throttle valve is also determined by the spring force of the spring (5).
4. The throttling valve with constant outlet flow according to claim 1, characterized in that a first screen (10) is provided between the filler pipe orifice (12) and the shutter (9) for filtering impurities in the fluid.
5. The throttling valve with constant outlet flow according to claim 4, characterized in that a second screen (2) is provided between the housing (1) and the spring (5) for filtering impurities in the fluid.
6. The throttling valve with constant outlet flow according to claim 5, characterized in that a gasket (3) is provided between the spring (5) and the second screen (2) for protecting the second screen (2).
7. The throttle valve with constant outlet flow according to claim 6, characterized in that a spring seat (4) is provided between the spring (5) and the washer (3) for supporting the spring (5).
8. The throttling valve with constant outlet flow according to claim 1, characterized in that a sealing ring (7) is arranged between the housing (1) and the filler pipe nozzle (12) for sealing.
9. The throttling valve with constant outlet flow according to claim 1, characterized in that the first through hole (91) is angled from 60 to 120 degrees from the flow hole axis and the second through hole (81) is angled from 60 to 120 degrees from the flow hole axis.
10. The throttle valve with constant outlet flow according to claim 1, characterized in that the third through hole (82) is angled from 60 to 120 degrees from the flow hole axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333463.4A CN109237090B (en) | 2018-11-09 | 2018-11-09 | Throttle valve with constant outlet flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333463.4A CN109237090B (en) | 2018-11-09 | 2018-11-09 | Throttle valve with constant outlet flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109237090A CN109237090A (en) | 2019-01-18 |
| CN109237090B true CN109237090B (en) | 2020-02-21 |
Family
ID=65077955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811333463.4A Active CN109237090B (en) | 2018-11-09 | 2018-11-09 | Throttle valve with constant outlet flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109237090B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735723B (en) * | 2019-10-22 | 2022-03-08 | 北京动力机械研究所 | Position retaining system for flow regulating valve after abnormal power failure of engine controller |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147221A (en) * | 2003-11-13 | 2005-06-09 | Miyawaki Inc | Constant flow rate valve |
| CN201651474U (en) * | 2010-03-22 | 2010-11-24 | 广东万和新电气股份有限公司 | Constant pressure valve |
| CN103016769A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Integral high-pressure small-flow adjuster |
| CN103075229A (en) * | 2011-10-07 | 2013-05-01 | 爱三工业株式会社 | Flow control valve |
| CN206429721U (en) * | 2016-12-14 | 2017-08-22 | 佛山市顺德区乐华陶瓷洁具有限公司 | A kind of pressure limiting permanent flow valve |
| CN206449267U (en) * | 2016-12-21 | 2017-08-29 | 中国航发长春控制科技有限公司 | Flow controls valve assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20041549A1 (en) * | 2004-07-29 | 2004-10-29 | Caleffi Spa | AUTOMATIC FLOW STABILIZER VALVE |
-
2018
- 2018-11-09 CN CN201811333463.4A patent/CN109237090B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005147221A (en) * | 2003-11-13 | 2005-06-09 | Miyawaki Inc | Constant flow rate valve |
| CN201651474U (en) * | 2010-03-22 | 2010-11-24 | 广东万和新电气股份有限公司 | Constant pressure valve |
| CN103075229A (en) * | 2011-10-07 | 2013-05-01 | 爱三工业株式会社 | Flow control valve |
| CN103016769A (en) * | 2012-12-08 | 2013-04-03 | 中国航天科技集团公司第六研究院第十一研究所 | Integral high-pressure small-flow adjuster |
| CN206429721U (en) * | 2016-12-14 | 2017-08-22 | 佛山市顺德区乐华陶瓷洁具有限公司 | A kind of pressure limiting permanent flow valve |
| CN206449267U (en) * | 2016-12-21 | 2017-08-29 | 中国航发长春控制科技有限公司 | Flow controls valve assembly |
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| Publication number | Publication date |
|---|---|
| CN109237090A (en) | 2019-01-18 |
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