CN204692683U - A kind of automatic control constant voltage throttle valve - Google Patents

A kind of automatic control constant voltage throttle valve Download PDF

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Publication number
CN204692683U
CN204692683U CN201520386818.1U CN201520386818U CN204692683U CN 204692683 U CN204692683 U CN 204692683U CN 201520386818 U CN201520386818 U CN 201520386818U CN 204692683 U CN204692683 U CN 204692683U
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China
Prior art keywords
valve
piston
pressure
cylinder
elastic
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CN201520386818.1U
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Chinese (zh)
Inventor
周宁康
林建国
段太建
何荣先
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Deyang Zheng Guang Petroleum Machinery Manufacturing Co., Ltd.
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DEYANG ZHENGGUANG ELECTROMECHANICAL EQUIPMENT Co Ltd
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Abstract

The utility model discloses a kind of automatic control constant voltage throttle valve, comprise valve body and actuator, described actuator comprises gray iron, piston, pressure pipe and elastic element, described cylinder body is fixedly installed on above valve body, described cylinder cap is fixed on cylinder body top, and described piston is movably arranged in cylinder body, and the bottom of piston is fixed on the valve rod of valve body, described elastic element is fixedly installed between cylinder body and valve body, and elastic element is fixedly connected with piston; The pressure end of described pressure pipe is communicated with the output terminal of valve body, going out above piston that pressure side arranges in cylinder body of described pressure pipe.The utility model can utilize pipeline pressure automatically to control the size of throttle flow rate output, solves the safety valve easily problem of automatic take-off because pressure change is excessive in prior art.

Description

A kind of automatic control constant voltage throttle valve
Technical field
The utility model relates to valve field, particularly relates to a kind of automatic control constant voltage throttle valve.
Background technique
Throttle valve is by changing throttling cross section or chock length with the valve of control media flow, it is primarily of valve body, valve rod, spool and valve seat are formed, as China Patent No. " 200920234295.3 " discloses a kind of Novel throttling valve on May 19th, 2010, its technological scheme is that described throttle valve comprises valve body, stuffing box, the valve rod be provided with in valve cavity, the handwheel that valve rod front end is provided with, the valve seat of the cooperation valve rod that valve cavity rear portion is provided with, it is characterized in that described stuffing box is the upper dress formula stuffing box back to valve in-vivo medium, described valve rod is soldering valve rod assembly valve stem body and stem head are connected as a single entity by brazing mode, described valve seat is soldering valve component valve seat body and valve seat bush are connected as a single entity by brazing mode.With the throttle valve that this patent document is representative, be widely used in the exploitation of oil and natural gas, production, gathering line industry.But in actual use, be consumption size according to user side due to pipeline pressure and change constantly, frequent appearance because of throttle valve output terminal pressure change excessive, and cause the problem of the automatic take-off of safety valve, at this moment just need reset unlatching again, mainly contains two kinds of reset opening ways at present: 1, hand reset is opened, but this mode needs Attended mode, labor intensity is large, and can produce a large amount of costs of labor; 2, reset of surging is opened, this mode not only needs supplementary equipment, as: pressurized air, pump, accumulator dispatch control system element, and also need manually to carry out the aperture that remote operation controls throttle valve, not only waste of manpower resource and the energy, and because using hydraulic oil also can cause certain pollution.Meanwhile, these two kinds of modes may make pipeline pressure instability cause safety shut-off valve to close and then have influence on user to use, therefore in the urgent need to a kind of throttle valve that can change flow automatic regulation according to pressure because of personal factor.
Model utility content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, a kind of automatic control constant voltage throttle valve is provided, the utility model can utilize pipeline pressure automatically to control the size of throttle flow rate output, solves the safety valve easily problem of automatic take-off because pressure change is excessive in prior art.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of automatic control constant voltage throttle valve, it is characterized in that: comprise valve body and actuator, described actuator comprises gray iron, piston, pressure pipe and elastic element, described cylinder body is fixedly installed on above valve body, described cylinder cap is fixed on cylinder body top, and described piston is movably arranged in cylinder body, and the bottom of piston is fixed on the valve rod of valve body, described elastic element is fixedly installed between cylinder body and valve body, and elastic element is fixedly connected with piston; The pressure end of described pressure pipe is communicated with the output terminal of valve body, described pressure pipe go out above piston that pressure side arranges in cylinder body; When the pressure increase of valve body output terminal, pressure pipe coordinates the aperture reducing valve body with piston, and when the pressure of valve body output terminal reduces, elastic element coordinates the aperture increasing valve body with piston.
Described actuator also comprises piston rod, and one end of described piston rod is fixed on upper piston area, and the other end passes in the middle part of cylinder cap, and is provided with filler between piston rod and cylinder cap.
Described cylinder cap offers entrance pressure passage and row pressure passage, the lower end of described entrance pressure passage is arranged on above the piston in cylinder body, the upper end of described entrance pressure passage and pressure pipe go out press bond, described row pressure passage is connected with Decompression valves.
Described actuator also comprises housing, and one end of described housing is fixed on inferior part of the cylinder block by screw thread, and the other end is fixedly connected with the valve gap of valve body by end cap.
The valve gap of described valve body is provided with packing groove and gland, described valve rod top is connected with piston with after gland through packing groove successively.
Described elastic element is the spring be arranged in housing, and one end of described spring is fixed on end cap, and the other end is fixed on piston.
Described piston is fixedly installed briquetting, and described spring is fixedly connected on briquetting.
Described pressure pipe is provided with pressure gauge.
Seal ring is provided with between described cylinder block and cylinder cover.
Employing the utility model has the advantage of:
One, in the utility model, because the pressure end of pressure pipe is communicated with the output terminal of valve body, go out above piston that pressure side arranges in cylinder body for pressure is passed to piston, when the consumption of user side reduces gradually, pressure in valve body output terminal increases gradually, under the effect of the pressure, medium in output terminal enters from the pressure end of pressure pipe, and continue to flow out from the pressure side that goes out of pressure pipe, this medium continuing to flow out incites somebody to action gradually extrusion piston downwards, when this extruding force is greater than the elastic force of elastic element, piston driving valve rod moves down, the aperture of valve body reduces, the flow of medium is also turned down, until the aperture of valve and user's consumption are consistent, now, the medium squeeze power that piston is downward and elastic element elastic force upwards re-establish new balance, piston, valve rod and flap all remain static, output flow reduces, pressure remains unchanged, when the consumption of user side increases gradually, pressure in valve body output terminal reduces gradually, the extruding force of medium to piston also reduces gradually, when this extruding force is less than the elastic force of elastic element, elastic element is moved up by piston driving valve rod, the aperture of valve body increases, the flow of medium also increases, until the aperture of valve and user's consumption are consistent, now, the medium squeeze power that piston is downward and elastic element elastic force upwards re-establish new balance, piston, valve rod and flap all remain static, output flow increases, pressure remains unchanged.Compared with the prior art being representative with China Patent No. " 200920234295.3 ", the utility model can according to the pressure change in pipeline, utilize the reverse elastic force of the extruding force of medium and elastic element to carry out the aperture of autocontrol valve door main body, thus reach the object keeping throttle valve output end pressure constant.In actual use, can unmanned, and without the need to any supplementary equipment, the energy, manually just automatic control can be realized, significantly reduce hand labor intensity and cost of production.
Two, in the utility model, one end of piston rod is fixed on upper piston area, the other end passes in the middle part of cylinder cap, make people by the length of cylinder cap upper piston rod to judge the size of valve body aperture, in addition, also carry out the pressure of regulating valve main body output terminal by Non-follow control piston rod, namely the utility model is except except automatic regulating valve door main body aperture, can carrying out the aperture of manual tune valve body by piston rod when needing.
Three, in the utility model, the lower end of entrance pressure passage is arranged on above the piston in cylinder body, make from medium pressure can rapid response on piston and valve rod, by row pressure passage and Decompression valves then can when dismantling whole mechanism quick pressure releasing, be conducive to improving dismounting speed.
Four, in the utility model; between cylinder body and valve gap, housing is set; piston, elastic element and valve rod etc. can be protected better to be positioned at the equipment of housing, and extraneous aqueous vapor and trifle in the world etc. can be avoided to enter valve body and actuator inside, be conducive to the working life of improving whole throttle valve.
Five, in the utility model, the packing groove that valve gap is arranged and gland can avoid extraneous aqueous vapor and trifle in the world etc. to enter valve body interior.
Six, in the utility model, elastic element is the spring be arranged in housing, has the advantages such as simple, the with low cost and elastic stability of structure.
Seven, in the utility model, the pressure in pipeline can be observed by the pressure gauge on pressure pipe at any time, be conducive to people and adjust in time.
Eight, in the utility model, between cylinder block and cylinder cover, be provided with seal ring, can prevent pressure from leaking by seal ring, make the adjustment of flow sensitiveer.
Nine, the utility model can steadily regulate the flow of throttle valve to export, and the impact force that whole equipment is subject to is little, is conducive to the working life of improving whole equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Being labeled as in figure: 1, valve body, 2, cylinder body, 3, cylinder cap, 4, piston rod, 5, piston, 6, pressure pipe, 7, spring, 8, entrance pressure passage, 9, row pressure passage, 10, Decompression valves, 11, seal ring, 12, housing, 13, end cap, 14, packing groove, 15, gland, 16, briquetting, 17, pressure gauge, 18, valve gap, 19, valve rod, 20, output terminal.
Embodiment
Embodiment 1
A kind of automatic control constant voltage throttle valve, comprise valve body 1 and actuator, described actuator comprises cylinder body 2, cylinder cap 3, piston 5, pressure pipe 6 and elastic element, described cylinder body 2 is fixedly installed on above valve body 1, described cylinder cap 3 is fixed on cylinder body 2 top, and described piston 5 is movably arranged in cylinder body 2, and the bottom of piston 5 is fixed on the valve rod 19 of valve body 1, described elastic element is fixedly installed between cylinder body 2 and valve body 1, and elastic element is fixedly connected with piston 5; The pressure end of described pressure pipe 6 is communicated with the output terminal 20 of valve body 1, described pressure pipe 6 go out above piston 5 that pressure side arranges in cylinder body 2; When the pressure increase of valve body 1 output terminal 20, pressure medium is delivered to above piston 5 by pressure pipe 6 and piston 5 is moved down, piston 5 indirect belt ovable valve stem 19 and flap move down, reduce the aperture of valve body 1, when the pressure of valve body 1 output terminal 20 reduces, the pressure medium above piston 5 is back to output terminal 20 by pressure pipe 6, the pressure minimizing that piston 5 is downward, elastic element drives piston 5, valve rod 19 and flap to move up, and increases the aperture of valve body 1.
In the present embodiment, described actuator also comprises piston rod 4, and one end of described piston rod 4 is fixed on piston 5 top, and the other end passes in the middle part of cylinder cap 3, and piston rod 4 can move up and down in cylinder cap 3, and is provided with filler between piston rod 4 and cylinder cap 3.Further, the upper end portion of piston rod 4 is connected with handwheel, can the aperture of hand control valve door main body 1 by handwheel.
In the present embodiment, described cylinder cap 3 offers entrance pressure passage 8 and row pressure passage 9, the lower end of described entrance pressure passage 8 is arranged on above the piston 5 in cylinder body 2, the upper end of described entrance pressure passage 8 and pressure pipe 6 go out press bond, the lower end of described row pressure passage 9 is positioned at above the piston 5 of cylinder body 2, the upper end of described row pressure passage 9 is connected with Decompression valves 10, and row pressure passage 9 and Decompression valves 10 are for the pressure release when dismantling actuator.Further, described entrance pressure passage 8 and row pressure passage 9 are all vertically set on above the end face of piston 5 upper end portion.
Further, described entrance pressure passage 8 and row pressure passage 9 are symmetricly set on piston rod 4 both sides.
In the present embodiment, described pressure pipe 6 is provided with the pressure gauge 17 of observation manifold pressure.
In the present embodiment, be provided with seal ring 11 between described cylinder body 2 and cylinder cap 3, the quantity of described seal ring 11 is multiple, and multiple seal ring 11 points of multilayers are arranged between cylinder body 2 and cylinder cap 3; Further, described piston 5 is same with between cylinder body 2 is provided with seal ring 11.
In the present embodiment, described valve rod 19 lower end is provided with the cylndrical surface that external diameter is greater than valve rod 19 sealing surface, is connected with flap by steel ball, simultaneously, when the cylndrical surface of lower end contacts with valve gap 18, can carry out spacing to it, prevent elastic element from excessively being opened by valve body 1.
Embodiment 2
A kind of automatic control constant voltage throttle valve, comprise valve body 1 and actuator, described actuator comprises cylinder body 2, cylinder cap 3, piston 5, pressure pipe 6 and elastic element, described cylinder body 2 is fixedly installed on above valve body 1, described cylinder cap 3 is fixed on cylinder body 2 top, and described piston 5 is movably arranged in cylinder body 2, and the bottom of piston 5 is fixed on the valve rod 19 of valve body 1, described elastic element is fixedly installed between cylinder body 2 and valve body 1, and elastic element is fixedly connected with piston 5; The pressure end of described pressure pipe 6 is communicated with the output terminal 20 of valve body 1, described pressure pipe 6 go out above piston 5 that pressure side arranges in cylinder body 2; When the pressure increase of valve body 1 output terminal 20, pressure medium is delivered to above piston 5 by pressure pipe 6 and piston 5 is moved down, piston 5 indirect belt ovable valve stem 19 and flap move down, reduce the aperture of valve body 1, when the pressure of valve body 1 output terminal 20 reduces, the pressure medium above piston 5 is back to output terminal 20 by pressure pipe 6, the pressure minimizing that piston 5 is downward, elastic element drives piston 5, valve rod 19 and flap to move up, and increases the aperture of valve body 1.
In the present embodiment, described actuator also comprises housing 12, and one end of described housing 12 is fixed on cylinder body 2 bottom by screw thread, and the other end is fixedly connected with the valve gap 18 of valve body 1 by end cap 13.
In the present embodiment, the valve gap 18 of described valve body 1 is provided with packing groove 14 and gland 15, described gland 15 is provided with the hole suitable with valve rod 19 external diameter, described valve rod 19 top is connected with piston 5 through packing groove 14 and gland 15 are rear successively, and the top of packing groove 14 and gland 15 are all positioned at housing 12.
In the present embodiment, described elastic element is the spring 7 be arranged in housing 12, and described piston 5 is fixedly installed briquetting 16, and one end of described spring 7 is fixed on end cap 13, the other end is fixed on the briquetting 16 of piston 5, and piston 5 and valve rod 19 are all set in spring 7.
In the present embodiment, flap, valve rod 19 inside of valve body 1 are all designed with pressure compensation opening, the pressure of valve body 1 output terminal 20 flows to flap top by equalizing orifice, the medium end thrust of pressure balancing piston 5 cross section whereby, the diameter of valve rod 19 and the diameter of actuator can be reduced, reduce the requirement to spring 7 elastic force, can be user and save installing space, cost is also significantly reduced, and the precision that pressure is arranged is largely increased.
In the present embodiment, housing 12 designs for nonbearing structure, can increase the safety coefficient of actuator.
The utility model can adjust the output of flow in real time automatically according to the pressure change of valve body 1 output terminal 20, when the consumption of user side reduces gradually, pressure in valve body 1 output terminal 20 increases gradually, under the effect of the pressure, the medium of output terminal 20 enters from the pressure end of pressure pipe 6, and go out by pressure pipe 6 top that pressure side and entrance pressure passage 8 continue to flow to cylinder body 2 internal piston 5, because cylinder cap 3 is fixed, and piston 5 is slidably arranged in cylinder body 2, therefore, the medium continuing to flow out will directly to lower extrusion piston 5, when this extruding force is greater than the elastic force of spring 7, piston 5 is with ovable valve stem 19 to move down, the aperture of valve body 1 reduces gradually, correspondingly, the flow of medium also reduces gradually, until the downward extruding force of piston 5 and spring 7 elastic force upwards re-establish balance, when the consumption of user side increases gradually, the pressure of valve body 1 output terminal 20 reduces gradually, the extruding force of piston 5 upper dielectric also reduces gradually, when this extruding force is less than the elastic force of elastic element, elastic element is with ovable valve stem 19 and flap to move up by piston 5, in the process, the medium of cylinder body 2 inside is back in valve body 1 by entrance pressure passage 8 and pressure pipe 6 successively, the aperture of valve body 1 increases gradually, the flow of medium also increases gradually, until spring 7 elastic force upwards and the downward extruding force of piston 5 re-establish balance.

Claims (7)

1. an automatic control constant voltage throttle valve, it is characterized in that: comprise valve body (1) and actuator, described actuator comprises cylinder body (2), cylinder cap (3), piston (5), pressure pipe (6) and elastic element, described cylinder body (2) is fixedly installed on valve body (1) top, described cylinder cap (3) is fixed on cylinder body (2) top, described piston (5) is movably arranged in cylinder body (2), and the bottom of piston (5) is fixed on the valve rod (19) of valve body (1), described elastic element is fixedly installed between cylinder body (2) and valve body (1), and elastic element is fixedly connected with piston (5), the pressure end of described pressure pipe (6) is communicated with the output terminal (20) of valve body (1), described pressure pipe (6) go out pressure side arrange in cylinder body (2) piston (5) top, when the pressure increase of valve body (1) output terminal (20), pressure pipe (6) coordinates with piston (5) aperture reducing valve body (1), when the pressure of valve body (1) output terminal (20) reduces, elastic element coordinates with piston (5) aperture increasing valve body (1).
2. a kind of automatic control constant voltage throttle valve as claimed in claim 1, it is characterized in that: described actuator also comprises piston rod (4), one end of described piston rod (4) is fixed on piston (5) top, the other end passes from cylinder cap (3) middle part, and is provided with filler between piston rod (4) and cylinder cap (3).
3. a kind of automatic control constant voltage throttle valve as claimed in claim 1 or 2, it is characterized in that: described cylinder cap (3) offers entrance pressure passage (8) and row pressure passage (9), the lower end of described entrance pressure passage (8) is arranged on piston (5) top in cylinder body (2), the upper end of described entrance pressure passage (8) and pressure pipe (6) go out press bond, described row pressure passage (9) is connected with Decompression valves (10).
4. a kind of automatic control constant voltage throttle valve as claimed in claim 1, it is characterized in that: described actuator also comprises housing (12), one end of described housing (12) is fixed on cylinder body (2) bottom by screw thread, and the other end is fixedly connected with the valve gap (18) of valve body (1) by end cap (13).
5. a kind of automatic control constant voltage throttle valve as described in any one of claim 1,2 or 4, it is characterized in that: the valve gap (18) of described valve body (1) is provided with packing groove (14) and gland (15), described valve rod (19) top is connected with piston (5) with gland (15) afterwards through packing groove (14) successively.
6. a kind of automatic control constant voltage throttle valve as claimed in claim 5, is characterized in that: described elastic element is for being arranged on the spring (7) in housing (12), and one end of described spring (7) is fixed on end cap (13), and the other end is fixed on piston (5).
7. a kind of automatic control constant voltage throttle valve as claimed in claim 6, it is characterized in that: described piston (5) is fixedly installed briquetting (16), described spring (7) is fixedly connected on briquetting (16).
CN201520386818.1U 2015-06-08 2015-06-08 A kind of automatic control constant voltage throttle valve Active CN204692683U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520386818.1U CN204692683U (en) 2015-06-08 2015-06-08 A kind of automatic control constant voltage throttle valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520386818.1U CN204692683U (en) 2015-06-08 2015-06-08 A kind of automatic control constant voltage throttle valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879543A (en) * 2015-06-08 2015-09-02 德阳正光机电设备有限公司 Automatic-control constant-pressure throttling valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879543A (en) * 2015-06-08 2015-09-02 德阳正光机电设备有限公司 Automatic-control constant-pressure throttling valve

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 618021 Deyang province Sichuan city Xiaogan town Jingyang District Taiping Village

Patentee after: Deyang Zheng Guang Petroleum Machinery Manufacturing Co., Ltd.

Address before: 618021 Deyang province Sichuan city Xiaogan town Jingyang District Taiping Village

Patentee before: DEYANG ZHENGGUANG ELECTROMECHANICAL EQUIPMENT CO., LTD.

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Automatic control constant voltage choke valve

Effective date of registration: 20161108

Granted publication date: 20151007

Pledgee: China branch of the postal savings bank Limited by Share Ltd in Deyang City

Pledgor: Deyang Zheng Guang Petroleum Machinery Manufacturing Co., Ltd.

Registration number: 2016990000954