CN205504109U - Adjustable restriction valve - Google Patents
Adjustable restriction valve Download PDFInfo
- Publication number
- CN205504109U CN205504109U CN201620239305.2U CN201620239305U CN205504109U CN 205504109 U CN205504109 U CN 205504109U CN 201620239305 U CN201620239305 U CN 201620239305U CN 205504109 U CN205504109 U CN 205504109U
- Authority
- CN
- China
- Prior art keywords
- valve body
- upper valve
- flow
- spring
- bottom spool
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a restriction valve, concretely relates to adjustable restriction valve. This restriction valve includes valve body, lower valve body, spring holder, goes up case, bottom spool and adjusting nut: the valve body is installed down to the screw thread on going up the valve body, going up the valve body and being provided with the shoulder hole respectively in the valve body down, upward the shoulder hole of valve body is interior installs the case through spring holder and last spring, installs the bottom spool through lower spring and adjusting nut in the shoulder hole of lower valve body. The utility model discloses simple structure, manufacturing are with low costs, can be in the pipeline close during the too big or undersize of flow, make fluid medium's outflow be the settlement scope, satisfy the production requirement of petrochemical trade.
Description
Technical field
This utility model relates to a kind of flow-limiting valve, is specifically related to a kind of adjustable flow-limiting valve.
Background technology
In the pipeline of conveyance fluid, the flow of fluid is mainly stressed effect, and when pressure change, flow can change, and particularly when conduit entrance pressure increases suddenly, the flow of fluid can increase suddenly and some facility in pipeline may be caused damage.If pressure reduces, flow-reduction, it is impossible to easily cause loss or waste when meeting Production requirement.The adjustable flow-limiting valve of this flow is installed and can ensure that flow can meet specific Production requirement.Such as, in shale gas recovery process, if flow changes in the change of strata pressure can cause flow string, this flow-limiting valve can automatically be turned on and off runner according to flow, preventing production facility to be damaged and the leakage of output object, the flow making output gas is more uniform, it is easy to collect.But flow-limiting valve function singleness in the market, does not possess the function that limit for height simultaneously is low with limit；High-voltage and current-limitation valve and current limiting low-voltage valve must be connected on pipeline for this, the fluid of high flow rate high pressure and the fluid of low flow velocity low-pressure just can be made all can not to pass through pipeline, thus meet the needs of special station production and application.Use high-voltage and current-limitation valve and the mode of current limiting low-voltage valve series connection, though meeting production needs, but have manufacturing cost height and install and use the problem of inconvenience, being not suitable for the demand that business economicization uses.A limit for height low flow-limiting valve can be limited again it is therefore desirable to research and develop, high with the manufacturing cost that solves high-voltage and current-limitation valve and current limiting low-voltage valve has when being used in series and install and use the problem of inconvenience, to meet the needs that enterprise uses.
Summary of the invention
The purpose of this utility model is: provide one just can only open in specific range of flow, and the adjustable flow-limiting valve that range of flow can be set according to actual needs.
The technical solution of the utility model is:
A kind of adjustable flow-limiting valve, including upper valve body, lower valve body, spring base, upper valve core, bottom spool and adjusting nut；It is characterized in that: on upper valve body, screw thread is provided with lower valve body；It is respectively arranged with shoulder hole in upper valve body and lower valve body, in the shoulder hole of upper valve body, by spring base and upper spring, upper valve core is installed, in the shoulder hole of lower valve body, by lower spring and adjusting nut, bottom spool is installed.
It is provided with sealing ring between described upper valve body and lower valve body.
It is provided with defining flange in the shoulder hole of upper valve body.
Described upper valve core is goblet, and the circumference of upper valve core is evenly equipped with multiple opening.
Described bottom spool is the goblet that cross section assumes a " convex " shape；Multiple through hole it is evenly equipped with on the circumference of bottom spool.
Described opening and through hole quantity are respectively 4.
Described adjusting nut is connected with lower valve body screw thread.
The utility model has the advantage of:
This adjustable flow-limiting valve simple in construction, easy to use；When fluid flow excessive pressure is too high, bottom spool will seal lower valve body, hinders fluid to pass through；When the too small hypotony of fluid flow, obstruction fluid is passed through upper valve body by upper valve core.It is achieved in blocking the purpose that too high, the too low fluid of flow velocity passes through；Solve existing flow-limiting valve function singleness, do not possess limit for height and the problem of limit low-function simultaneously, meet the needs that enterprise uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of upper valve body of the present utility model；
Fig. 3 is the structural representation of lower valve body of the present utility model；
Fig. 4 is the structural representation of upper valve core of the present utility model；
Fig. 5 is the structural representation of bottom spool of the present utility model；
Fig. 6 is the structural representation of spring base of the present utility model；
Fig. 7 is the plan structure schematic diagram of spring base of the present utility model.
In figure: 1, upper valve body, 2, lower valve body, 3, upper valve core, 4, bottom spool, 5, spring base, 6, adjusting nut, 7, upper spring, 8, opening, 9, through hole, 10, through hole, 11, flowing hole, 12, installation base, 13, defining flange, 14, lower spring.
Detailed description of the invention
This 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.On upper valve body 1, screw thread is provided with lower valve body 2；It is provided with sealing ring between upper valve body 1 and lower valve body 2.It is respectively arranged with shoulder hole in upper valve body 1 and lower valve body 2, in the shoulder hole of upper valve body 1, by spring base 5 and upper spring 7, upper valve core 3 is installed.Upper valve core 3 is goblet, and the circumference of upper valve core 3 is evenly equipped with 4 openings 8.Spring base 5 is discoid；Spring base 5 lower surface middle part is provided with installation base 12, for the assembling of 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.Being evenly equipped with multiple flowing hole 11 on spring base 5 outside through hole 10, flowing hole 11 connects with through hole 10.Defining flange 13 it is provided with, to prevent upper valve core 3 from moving radially at work in the shoulder hole of upper valve body 1.
By lower spring 14 and adjusting nut 6, bottom spool 4 is installed in the shoulder hole of lower valve body 2.The goblet that bottom spool 4 assumes a " convex " shape for cross section；4 through holes 9 it are evenly equipped with on the circumference of bottom spool 4.Bottom spool 4 is designed to the purpose of " convex " shape and is easy for the assembling of lower spring 14.
The bottom of the upper valve core 3 of this adjustable flow-limiting valve and the top of bottom spool 4 are respectively the conical surface.Can be fully contacted with the shoulder hole of valve body at work, thus form metal sealing and block runner.
The spring base 5 of this adjustable flow-limiting valve is threadeded with upper valve body 1, the stress of spring 7 can be increased or decreased by rotating regulation spring base 5, i.e. changes the adhesive force of upper valve core 3 and upper valve body 1 conical surface, also just can regulate and open the flow of fluid media (medium) needed for this runner.
The adjusting nut 6 of this adjustable flow-limiting valve is threadeded with lower valve body 2, bottom spool 4 can move under the radial direction of lower valve body 2 is spacing in the axial direction, lower spring 14 is arranged between lower valve body 2 and bottom spool 4, thus the conical surface of bottom spool 4 can be made to separate with the conical surface of lower valve body 2, and runner is opened.Screw or unscrew adjusting nut 6 and can change the area of passage at the stress of lower spring 14 and bottom spool 4 conical surface.
During work, fluid media (medium) flows into from the lower port of lower valve body 2, and the through hole being adjusted nut 6 enters the runner of bottom spool 4, then flows out from the four of sidewall through holes 9, after with, the gap between the bottom spool 4 top conical surface and lower valve body 2 shoulder hole is flowed out, and enters in upper valve body 1.During this, when flow rate is excessive, fluid media (medium) can promote bottom spool 4 to move up, so that the male cone (strobilus masculinus) of bottom spool 4 progressively contacts with the inner conical surface of lower valve body 2, thus reduces flow or blocks runner；It is achieved in the purpose of high-voltage and current-limitation.
Entering to the fluid media (medium) in upper valve body 1 promotes upper valve core 3 to move up, during upper valve core 3 moves up, bottom upper valve core 3, the conical surface the most progressively opens (exposing gap) with the inner conical surface of upper valve body 1, thus runner is opened, fluid is entered upper valve body 1 inner chamber by opening 8, then the through hole 10 and flowing hole 11 by spring base 5 flows out upper valve body 1.During this, when flow rate is too small (during fluid insufficient pressure spring 7 upper with compression), under the effect of upper spring 7, upper valve core 3 is descending, bottom upper valve core 3, the conical surface the most progressively contacts with the inner conical surface of upper valve body 1, thus runner is closed, and fluid can not pass through；It is achieved in the purpose of current limiting low-voltage.
Upper valve core 3 and the bottom spool 4 of this adjustable flow-limiting valve are normally open, not only there is one-way conduction function, the outflow of fluid media (medium) can also be automatically controlled simultaneously, make to show that stream flow is in fixed range, range of flow can be controlled by regulation spring base 5 and adjusting nut 6, screw spring base 5 and can increase the lower limit of minimum outflow, otherwise, it is allowed to minimum outflow lower；Unscrew adjusting nut 6 and can increase the upper limit of maximum outflow, otherwise, it is allowed to maximum to go out flow lower.Spring base 5 and adjusting nut 6 should be with the use of at work, the situation locked to prevent valve.
Claims (7)
1. an 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: the upper screw thread of upper valve body (1) is provided with lower valve body (2)；It is respectively arranged with shoulder hole in upper valve body (1) and lower valve body (2), by spring base (5) and upper spring (7), upper valve core (3) is installed in the shoulder hole of upper valve body (1), in the shoulder hole of lower valve body (2), by lower spring (14) and adjusting nut (6), bottom spool (4) is installed.
The adjustable flow-limiting valve of one the most according to claim 1, it is characterised in that: it is provided with sealing ring between described upper valve body (1) and lower valve body (2).
The adjustable flow-limiting valve of one the most according to claim 1, it is characterised in that: it is provided with defining flange (13) in the shoulder hole of upper valve body (1).
The adjustable flow-limiting valve of one the most according to claim 1, it is characterised in that: described upper valve core (3) is goblet, and the circumference of upper valve core (3) is evenly equipped with multiple opening (8).
The adjustable flow-limiting valve of one the most according to claim 4, it is characterised in that: described bottom spool (4) is the goblet that cross section assumes a " convex " shape；Multiple through hole (9) it is evenly equipped with on the circumference of bottom spool (4).
The adjustable flow-limiting valve of one the most according to claim 5, it is characterised in that: described opening (8) and through hole (9) quantity are respectively 4.
The adjustable flow-limiting valve of one the most according to claim 1, it is characterised in that: described adjusting nut (6) is threadeded with lower valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620239305.2U CN205504109U (en) | 2016-03-28 | 2016-03-28 | Adjustable restriction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620239305.2U CN205504109U (en) | 2016-03-28 | 2016-03-28 | Adjustable restriction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504109U true CN205504109U (en) | 2016-08-24 |
Family
ID=56733773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620239305.2U Expired - Fee Related CN205504109U (en) | 2016-03-28 | 2016-03-28 | Adjustable restriction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570504A (en) * | 2016-03-28 | 2016-05-11 | 长江大学 | Adjustable limit valve |
-
2016
- 2016-03-28 CN CN201620239305.2U patent/CN205504109U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570504A (en) * | 2016-03-28 | 2016-05-11 | 长江大学 | Adjustable limit valve |
| CN105570504B (en) * | 2016-03-28 | 2018-01-16 | 长江大学 | A kind of adjustable flow-limiting valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |