CN105570504B - A kind of adjustable flow-limiting valve - Google Patents
A kind of adjustable flow-limiting valve Download PDFInfo
- Publication number
- CN105570504B CN105570504B CN201610178121.4A CN201610178121A CN105570504B CN 105570504 B CN105570504 B CN 105570504B CN 201610178121 A CN201610178121 A CN 201610178121A CN 105570504 B CN105570504 B CN 105570504B
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- China
- Prior art keywords
- valve body
- upper valve
- spring
- spring base
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of flow-limiting valve, and in particular to a kind of adjustable flow-limiting valve.The flow-limiting valve includes upper valve body, lower valve body, spring base, upper valve core, bottom spool and adjusting nut：Screw thread is provided with lower valve body on upper valve body；Shoulder hole is respectively arranged with upper valve body and lower valve body, the shoulder hole of upper valve body is interior to be provided with upper valve core by spring base and upper spring, and the shoulder hole of lower valve body is interior to be provided with bottom spool by lower spring and adjusting nut.The present invention is simple in construction, processing and manufacturing cost is low, can close when flow is excessive or too small in pipeline, the outflow for making fluid media (medium) is setting range, meets the production requirement of petroleum chemical industry.
Description
Technical field
The present invention relates to a kind of flow-limiting valve, and in particular to a kind of adjustable flow-limiting valve.
Background technology
In the pipeline of trandfer fluid, the flow of fluid is mainly stressed effect, and when pressure change, flow can change
Become, particularly when conduit entrance pressure increases suddenly, the flow of fluid can increase suddenly to be set to some in pipeline
Apply and cause to damage.If pressure reduces, flow-reduction, it can not meet to easily cause loss during production requirement or waste.Installation should
The adjustable flow-limiting valve of flow can ensure that flow can meet specific production requirement.For example, during shale gas exploitation, if
The change of strata pressure can cause flow in flow string to change, and the flow-limiting valve can be turned on and off runner automatically according to flow,
Prevent that production facility is damaged and the leakage of output object, is made the flow of output gas more uniform, is easy to collect.But at present
The flow-limiting valve function of in the market is single, does not possess while limit for height and limits low function；Must be by high-voltage and current-limitation valve and low pressure for this
Flow-limiting valve is connected on pipeline, the fluid of high flow rate high pressure and the fluid of low flow velocity low-pressure is passed through pipe
Road, so as to meet the needs of special station production and application.By the way of high-voltage and current-limitation valve and the series connection of current limiting low-voltage valve, though meet
Production needs, but it is high and the problem of install and use inconvenience to have a manufacturing cost, is not suitable for the demand that business economic uses.Cause
This be necessary to research and develop it is a can limit for height and can limit low flow-limiting valve, be used in series with solving high-voltage and current-limitation valve and current limiting low-voltage valve
The problem of Shi Cunyou manufacturing cost is high and installs and uses inconvenience, to meet needs that enterprise uses.
The content of the invention
It is an object of the invention to：There is provided one kind can only could open in specific range of flow, and range of flow can
The adjustable flow-limiting valve set is actually needed with basis.
The technical scheme is that：
A kind of adjustable flow-limiting valve, including upper valve body, lower valve body, spring base, upper valve core, bottom spool and adjusting nut；Its
It is characterised by：Screw thread is provided with lower valve body on upper valve body；Shoulder hole, the rank of upper valve body are respectively arranged with upper valve body and lower valve body
Upper valve core is provided with by spring base and upper spring in terraced hole, installed in the shoulder hole of lower valve body by lower spring and adjusting nut
There is bottom spool.
Sealing ring is provided between described upper valve body and lower valve body.
Defining flange is provided with the shoulder hole of upper valve body.
Described upper valve core is goblet, and multiple openings are evenly equipped with the circumference of upper valve core.
Described bottom spool is the goblet that section assumes a " convex " shape；Multiple through holes are evenly equipped with the circumference of bottom spool.
Described opening and insertion hole number is respectively 4.
Described adjusting nut is threadedly coupled with lower valve body.
Described spring base is discoid；Spring base lower surface middle part is provided with installation base；The center of spring base
Position is provided with stair-stepping through hole.
The upper end of described through hole is hexagonal hole；Multiple flowing holes, mistake are evenly equipped with spring base on the outside of through hole
Discharge orifice connects with through hole.
The advantage of the invention is that：
The adjustable flow-limiting valve is simple in construction, easy to use；When fluid flow excessive pressure is too high, bottom spool will be close
Lower valve body is sealed, hinders fluid to pass through；When the too small hypotony of fluid flow, upper valve core will hinder fluid to pass through upper valve body.By
This realizes the purpose that the fluid for blocking flow velocity too high, too low passes through；It is single to solve existing flow-limiting valve function, does not possess the same time limit
The problem of high and limit low-function, meet the needs that enterprise uses.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the upper valve body of the present invention；
Fig. 3 is the structural representation of the lower valve body of the present invention；
Fig. 4 is the structural representation of the upper valve core of the present invention；
Fig. 5 is the structural representation of the bottom spool of the present invention；
Fig. 6 is the structural representation of the spring base of the present invention；
Fig. 7 is the overlooking the structure diagram of the spring base of the present invention.
In figure：1st, upper valve body, 2, lower valve body, 3, upper valve core, 4, bottom spool, 5, spring base, 6, adjusting nut, 7, upper bullet
Spring, 8, opening, 9, through hole, 10, through hole, 11, flowing hole, 12, installation base, 13, defining flange, 14, lower spring.
Embodiment
The adjustable flow-limiting valve includes upper valve body 1, lower valve body 2, spring base 5, upper valve core 3, bottom spool 4 and adjusting nut 6.
Screw thread is provided with lower valve body 2 on upper valve body 1；Sealing ring is provided between upper valve body 1 and lower valve body 2.Upper valve body 1 and lower valve body 2
Shoulder hole is inside respectively arranged with, the shoulder hole of upper valve body 1 is interior to be provided with upper valve core 3 by spring base 5 and upper spring 7.Upper valve core 3
For goblet, 4 openings 8 are evenly equipped with the circumference of upper valve core 3.Spring base 5 is discoid；The lower surface pars intermedia of spring base 5
Position is provided with installation base 12, the assembling for upper spring 7；The centre of spring base 5 is provided with stair-stepping through hole 10；
The upper end of through hole 10 is hexagonal hole.Be evenly equipped with multiple flowing holes 11 on the spring base 5 in the outside of through hole 10, flowing hole 11 with
Through hole 10 connects.Defining flange 13 is provided with the shoulder hole of upper valve body 1, to prevent upper valve core 3 from moving radially at work.
Bottom spool 4 is provided with by lower spring 14 and adjusting nut 6 in the shoulder hole of lower valve body 2.Bottom spool 4 is in for section
The goblet of " convex " shape；4 through holes 9 are evenly equipped with the circumference of bottom spool 4.The purpose that bottom spool 4 is designed to " convex " shape is just
In the assembling of lower spring 14.
The bottom of the upper valve core 3 of the adjustable flow-limiting valve and the top of bottom spool 4 are respectively the conical surface.With at work can be with
The shoulder hole of valve body is fully contacted, and runner is blocked so as to form metal sealing.
The spring base 5 of the adjustable flow-limiting valve is threadedly coupled with upper valve body 1, can be increased by rotating regulation spring base 5
Or reduce the stress of spring 7, that is, change the adhesive force of upper valve core 3 and the conical surface of upper valve body 1, also can just adjust and open needed for the runner
The flow of fluid media (medium).
The adjusting nut 6 of the adjustable flow-limiting valve is threadedly coupled with lower valve body 2, and bottom spool 4 can limit in the radial direction of lower valve body 2
Position under move in the axial direction, lower spring 14 be arranged between lower valve body 2 and bottom spool 4, so as to make the conical surface of bottom spool 4 with
The conical surface separation of lower valve body 2, runner are opened.Screw or unscrew adjusting nut 6 can change lower spring 14 stress and under
Area of passage at the conical surface of valve element 4.
During work, fluid media (medium) flows into from the lower port of lower valve body 2, and the through hole of adjusted nut 6 enters the stream of bottom spool 4
Road, then flowed out from four through holes 9 of side wall, through the gap between the top conical surface of bottom spool 4 and the shoulder hole of lower valve body 2 after
Outflow, and enter in upper valve body 1.During this, when flow rate is excessive, fluid media (medium) can promote bottom spool 4 to
Upper movement, so that the male cone (strobilus masculinus) of bottom spool 4 progressively contacts with the inner conical surface of lower valve body 2, so as to reduce flow or block runner；
It is achieved in the purpose of high-voltage and current-limitation.
The fluid media (medium) entered in upper valve body 1 promotes upper valve core 3 to move up, during upper valve core 3 moves up,
The inner conical surface of the bottom conical surface of upper valve core 3 and upper valve body 1 is progressively opened each other（Expose gap）, so as to runner open, fluid by
Opening 8 enters the inner chamber of upper valve body 1, then flows out upper valve body 1 by the through hole 10 and flowing hole 11 of spring base 5.This process
In, when flow rate is too small（When i.e. Fluid pressure is not enough to compress spring 7）, in the presence of upper spring 7, upper valve
Core 3 is descending, and the bottom conical surface of upper valve core 3 progressively contacts each other with the inner conical surface of upper valve body 1, and so as to which runner is closed, fluid can not
Pass through；It is achieved in the purpose of current limiting low-voltage.
The upper valve core 3 and bottom spool 4 of the adjustable flow-limiting valve are normally open, not only with one-way conduction function, simultaneously
The outflow of fluid media (medium) can also be automatically controlled so that go out flow in fixed range, range of flow can be by adjusting spring
Seat 5 and adjusting nut 6 be controlled, the lower limit of minimum outflow can be increased by screwing spring base 5, on the contrary, it is allowed to it is minimum go out
Flow is lower；The upper limit of maximum outflow can be increased by unscrewing adjusting nut 6, on the contrary, it is allowed to maximum to go out flow lower.
Spring base 5 should be used cooperatively with adjusting nut 6 in work, to prevent the locked situation of valve.
Claims (6)
1. a kind of adjustable flow-limiting valve, including upper valve body（1）, lower valve body（2）, spring base（5）, upper valve core（3）, bottom spool
（4）And adjusting nut（6）；It is characterized in that：Upper valve body（1）Upper screw thread is provided with lower valve body（2）；Upper valve body（1）And lower valve body
（2）Inside it is respectively arranged with shoulder hole, upper valve body（1）Shoulder hole in be provided with defining flange（13）；Upper valve body（1）Shoulder hole
Inside pass through spring base（5）With upper spring（7）Upper valve core is installed（3）, lower valve body（2）Shoulder hole in pass through lower spring（14）With
Adjusting nut（6）Bottom spool is installed（4）；Spring base（5）To be discoid；Spring base（5）Lower surface middle part is provided with peace
Fill boss（12）, installation base（12）For upper spring（7）Assembling；Spring base（5）Centre be provided with it is stair-stepping
Through hole（10）；Through hole（10）The spring base in outside（5）On be evenly equipped with multiple flowing holes（11）, flowing hole（11）With through hole
（10）Connection；Spring base（5）With upper valve body（1）Threaded connection, spring base is adjusted by rotating（5）Spring can be increasedd or decreased
（7）Stress, to change upper valve core（3）With upper valve body（1）The stream of fluid media (medium) needed for runner is opened in the adhesive force of the conical surface, regulation
Amount；Described adjusting nut（6）With lower valve body（2）Threaded connection；Pass through adjusting nut（6）Lower spring can be changed（14）Stress
And bottom spool（4）Area of passage at the conical surface.
A kind of 2. adjustable flow-limiting valve according to claim 1, it is characterised in that：Described upper valve body（1）And lower valve
Body（2）Between be provided with sealing ring.
A kind of 3. adjustable flow-limiting valve according to claim 1, it is characterised in that：Described upper valve core（3）For cup-shaped
Body, upper valve core（3）Circumference on be evenly equipped with multiple openings（8）.
A kind of 4. adjustable flow-limiting valve according to claim 1, it is characterised in that：Described bottom spool（4）For section
The goblet assumed a " convex " shape；Bottom spool（4）Circumference on be evenly equipped with multiple through holes（9）.
A kind of 5. adjustable flow-limiting valve according to claim 3, it is characterised in that：Described opening（8）Quantity is 4
It is individual.
A kind of 6. adjustable flow-limiting valve according to claim 4, it is characterised in that：Described through hole（9）Quantity is 4
It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178121.4A CN105570504B (en) | 2016-03-28 | 2016-03-28 | A kind of adjustable flow-limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610178121.4A CN105570504B (en) | 2016-03-28 | 2016-03-28 | A kind of adjustable flow-limiting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105570504A CN105570504A (en) | 2016-05-11 |
| CN105570504B true CN105570504B (en) | 2018-01-16 |
Family
ID=55880967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610178121.4A Expired - Fee Related CN105570504B (en) | 2016-03-28 | 2016-03-28 | A kind of adjustable flow-limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105570504B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3531175A1 (en) * | 1985-08-31 | 1987-03-12 | Gag Grubenausbau Gmbh | Shut-off valve |
| CN2833289Y (en) * | 2005-07-02 | 2006-11-01 | 吴正平 | Explosion-proof safety valve for pipeline |
| CN202032140U (en) * | 2011-03-02 | 2011-11-09 | 李少辉 | High-low pressure double-blocking type air flow safe valve |
| CN102588633A (en) * | 2012-03-12 | 2012-07-18 | 太仓市弧螺机电有限公司 | High-reliability one-way valve |
| CN205504109U (en) * | 2016-03-28 | 2016-08-24 | 长江大学 | Adjustable restriction valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201265679Y (en) * | 2008-07-22 | 2009-07-01 | 宁波星箭航天机械厂 | Pressure-limiting valve |
| CH708930A1 (en) * | 2013-12-06 | 2015-06-15 | Liebherr Machines Bulle Sa | Pressure relief valve. |
| CN104676062B (en) * | 2015-03-12 | 2017-04-05 | 宁波东钱湖旅游度假区圣莱思机电有限公司 | A kind of double-stage air energy-saving valve |
-
2016
- 2016-03-28 CN CN201610178121.4A patent/CN105570504B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3531175A1 (en) * | 1985-08-31 | 1987-03-12 | Gag Grubenausbau Gmbh | Shut-off valve |
| CN2833289Y (en) * | 2005-07-02 | 2006-11-01 | 吴正平 | Explosion-proof safety valve for pipeline |
| CN202032140U (en) * | 2011-03-02 | 2011-11-09 | 李少辉 | High-low pressure double-blocking type air flow safe valve |
| CN102588633A (en) * | 2012-03-12 | 2012-07-18 | 太仓市弧螺机电有限公司 | High-reliability one-way valve |
| CN205504109U (en) * | 2016-03-28 | 2016-08-24 | 长江大学 | Adjustable restriction valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105570504A (en) | 2016-05-11 |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20210328 |