CN102829221B - Self-powered flow-stabilizing adjusting valve - Google Patents
Self-powered flow-stabilizing adjusting valve Download PDFInfo
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- CN102829221B CN102829221B CN2012103326935A CN201210332693A CN102829221B CN 102829221 B CN102829221 B CN 102829221B CN 2012103326935 A CN2012103326935 A CN 2012103326935A CN 201210332693 A CN201210332693 A CN 201210332693A CN 102829221 B CN102829221 B CN 102829221B
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Abstract
The invention relates to a self-powered flow-stabilizing adjusting valve which comprises a valve body, a valve cover, a bearing inlet and a bearing outlet, wherein a throttle sleeve is arranged in the valve body; a pressure-adjusting sleeve and a valve clack are tightly coupled in the throttle sleeve; a valve rod is arranged in a cavity formed by the pressure-adjusting sleeve and the valve clack; a disc spring is sleeved on the valve rod; the upper end of the valve rod extends out of the valve cover; the lower end of the valve rod is moveably connected with the valve clack; a clamp spring is arranged on the valve rod; the lower end face of the clamp spring is in contact with the upper surface of the pressure-adjusting sleeve; slots are symmetrically arranged on the outer periphery of the throttle sleeve; the upper ends of the slots are jointly communicated with the cavity above the pressure-adjusting sleeve; the lower ends of the slots are communicated with the bearing inlet; throttle ports which are circumferentially distributed are arranged at the lower end of the throttle sleeve; a hollow valve base is arranged at the bottom of the valve body; a hollow part of the valve base is communicated with the bearing outlet; and the valve base is buckled with the valve clack. A pressure adjusting valve has an automatic pressure-adjusting function, namely, the opening of the throttle ports is automatically adjusted when the present valve pressure is fluctuated, so that the flow stability is ensured to a certain degree.
Description
Technical field
The present invention relates to a kind of self-powering type steady flow control valve, be used for fluid delivery system, especially relate to a kind of pressure with oil transportation main pipe line oil and drop to the modulating valve of the required pressure in oil transportation unit.
Background technique
Continuous progress along with science and technology, the modulating valve that is used for now fluid delivery system is varied, but mainly take manual tune as main, in case manual tune puts in place, the pressure of its adjusting is fixing, if fluctuation appears in pipe fluid pressure, the pressure after its pressure regulation is still what fluctuate, piping flow is altered a great deal, affect normal oil transportation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of self-powering type steady flow control valve, and this pressure regulator valve has from the pressure regulatory function, namely when upstream pressure has fluctuation, and adjusting joint head piece aperture automatically, thus guarantee to a certain extent stability of flow.
For overcoming the above problems, concrete technological scheme of the present invention is as follows: a kind of self-powering type steady flow control valve, comprise valve body, valve gap, advance bellmouth and go out bellmouth, be provided with orifice sleeve in valve body, be set with successively pressure-regulating sleeve and flap in orifice sleeve, form in cavity and be provided with valve rod between pressure-regulating sleeve and flap, on valve rod, cover has the dish spring, and valve gap is stretched out in the upper end of valve rod, and the lower end of valve rod and flap are flexibly connected, be provided with jump ring on valve rod, the lower end surface of jump ring contacts with the upper surface of pressure-regulating sleeve; Excircle at orifice sleeve is arranged with groove, and the upper end of groove communicates with the cavity of pressure-regulating sleeve top jointly, and the lower end of groove communicates with import, is respectively equipped with the restriction of circumference uniform distribution in the lower end of orifice sleeve; Be provided with the valve seat of hollow in the bottom of valve body, the hollow portion of valve seat communicates with going out bellmouth, and valve seat and flap fasten.
The upper end of the described valve rod Stem Mut that is threaded, handwheel is connected with nut.
The middle part of described valve rod is provided with pointer.
This self-powering type steady flow control valve adopts said structure, can change according to the pressure of pipeline the aperture of automatic adjusting joint head piece, the stability flow thereby the pressure reduction of assurance valve is substantially constant.
Description of drawings
Fig. 1 is the structural representation of self-powering type steady flow control valve.
Embodiment
As shown in Figure 1, a kind of self-powering type steady flow control valve, comprise valve body 1, valve gap 8, advance bellmouth 21 and go out bellmouth 22, be provided with orifice sleeve 4 in valve body 1, be set with successively pressure-regulating sleeve 5 and flap 3 in orifice sleeve 4, form in cavity and be provided with valve rod 7 between pressure-regulating sleeve 5 and flap 3, on valve rod 7, cover has dish spring 6, and valve gap 8 is stretched out in the upper end of valve rod 7, and the lower end of valve rod 7 and flap 3 are flexibly connected, be provided with jump ring 12 on valve rod 7, the lower end surface of jump ring 12 contacts with the upper surface of pressure-regulating sleeve 5; Excircle at orifice sleeve 4 is arranged with groove 13, and the upper end of groove 13 communicates with the cavity of pressure-regulating sleeve 5 tops jointly, the lower end of groove 13 with advance bellmouth 21 and communicate, be respectively equipped with the restriction 14 of circumference uniform distribution in the lower end of orifice sleeve 4; Be provided with the valve seat 2 of hollow in the bottom of valve body 1, the hollow portion of valve seat 2 communicates with going out bellmouth 22, and valve seat 2 fastens with flap 3.
The upper end of described valve rod 7 Stem Mut 10 that is threaded, handwheel 11 is connected with nut 10, can regulate the aperture of flap and the size of restriction by the rotation of handwheel 11, thereby has regulated the pressure reduction of valve.。
The middle part of described valve rod is provided with pointer 9,, by the indication of pointer 9, has shown the aperture of valve.
Its working principle:
1. orifice sleeve maintains static, and there are eight restrictions 14 lower end;
2. pressure-regulating sleeve 5 use dish spring 6 jack-up, and with jump ring 12 location, so pressure-regulating sleeve 5 can synchronously rise and fall with flap 3, when flap 3 was opened, pressure-regulating sleeve also rose thereupon, and restriction has certain aperture.When flap 3 standard-sized sheet, restriction also standard-sized sheet arrives maximum;
3. epicoele communicates with advancing bellmouth 21 all the time by groove 13 and microstome, so epicoele A internal pressure is inlet pressure P1;
4. when valve open, medium enters flap cavity of resorption B through restriction 14, then through valve seat orifice, flows to outlet, and its pressure is changed to P1 → PB → P2; Because pressure-regulating sleeve and flap suit place do not have seal ring, so dish spring cavity pressure is also PB;
5. after valve open, pressure-regulating sleeve stress balance formula is:
Wherein, P
1-inlet pressure, P
B-flap chamber, dish spring cavity pressure, P
T-dish spring elastic force, D-orifice sleeve internal diameter are pressure-regulating sleeve external diameter, d-valve rod external diameter.
Under a certain operating mode, a certain height in pressure-regulating sleeve place one.Work as P
1During increase, inevitable pressure-regulating sleeve moves down, and restriction is reduced, and the restriction pressure loss increases, and variable-flow is not constant to keep PB; Otherwise when P1 reduced, pressure-regulating sleeve moved up, and throttling is strengthened, and the restriction pressure loss reduces, and it is constant that its result is also kept PB, stablized the flow of valve.
When should outlet pressure P2 changing, cause that also pressure-regulating sleeve is corresponding or rise or fall, also can keep flow relatively stable.
Claims (3)
1. self-powering type steady flow control valve, comprise valve body (1), valve gap (8), advance bellmouth (21) and go out bellmouth (22), it is characterized in that: be provided with orifice sleeve (4) in valve body (1), be set with successively pressure-regulating sleeve (5) and flap (3) in orifice sleeve (4), form in cavity and be provided with valve rod (7) between pressure-regulating sleeve (5) and flap (3), the upper cover of valve rod (7) has dish spring (6), valve gap (8) is stretched out in the upper end of valve rod (7), the lower end of valve rod (7) is threaded with flap (3), be provided with jump ring (12) on valve rod (7), the lower end surface of jump ring (12) contacts with the upper surface of pressure-regulating sleeve (5), excircle at orifice sleeve (4) is arranged with groove (13), the upper end of groove (13) communicates with the cavity of pressure-regulating sleeve (5) top jointly, the lower end of groove (13) communicates with advancing bellmouth (21), is respectively equipped with the restriction (14) of circumference uniform distribution in the lower end of orifice sleeve (4), be provided with the valve seat (2) of hollow in the bottom of valve body (1), the hollow portion of valve seat (2) communicates with going out bellmouth (22), and valve seat (2) fastens with flap (3).
2. self-powering type steady flow control valve as claimed in claim 1, it is characterized in that: described valve gap (8) top is provided with locking bed (15), be flexibly connected Stem Mut (10) by bearing in locking bed (15), the upper end of valve rod (7) is threaded with Stem Mut (10), outer wall at locking bed (15) is provided with set lever (16), the interior edge face of set lever (16) contacts with the outer wall of Stem Mut (10), the symmetrical horizontally disposed handwheel (11) that connects in the upper end of Stem Mut (10).
3. self-powering type steady flow control valve as claimed in claim 1 or 2, it is characterized in that: the middle part of described valve rod is provided with pointer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103326935A CN102829221B (en) | 2012-09-11 | 2012-09-11 | Self-powered flow-stabilizing adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103326935A CN102829221B (en) | 2012-09-11 | 2012-09-11 | Self-powered flow-stabilizing adjusting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102829221A CN102829221A (en) | 2012-12-19 |
| CN102829221B true CN102829221B (en) | 2013-11-13 |
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ID=47332457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103326935A Active CN102829221B (en) | 2012-09-11 | 2012-09-11 | Self-powered flow-stabilizing adjusting valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102829221B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2803969B2 (en) * | 1993-05-20 | 1998-09-24 | 株式会社クボタ | Variable constant flow valve |
| CN101625033B (en) * | 2009-08-05 | 2011-01-05 | 无锡卓尔阀业有限公司 | Water supply control valve for high-pressure boiler |
| CN101699106B (en) * | 2009-10-29 | 2011-06-29 | 黄育进 | Cut-off control valve |
| CN102563104A (en) * | 2012-02-04 | 2012-07-11 | 浙江科海仪表有限公司 | Self-operated sleeve regulating valve |
-
2012
- 2012-09-11 CN CN2012103326935A patent/CN102829221B/en active Active
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| Publication number | Publication date |
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| CN102829221A (en) | 2012-12-19 |
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Owner name: SHENYANG XINGUANG GENERAL MACHINE MANUFACTURING CO Free format text: FORMER OWNER: OIL MATERIALS INST, GENERAL LOGISTICS DEPARTMENT OF PLA Effective date: 20150727 |
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Effective date of registration: 20150727 Address after: No. 10, Dongxin Road, Shenhe District, Shenyang Patentee after: Shenyang Xin Guang universal machine Manufacturing Co., Ltd Address before: 102300 Beijing city Mentougou District Three Street No. 1 Patentee before: Oil Materials Inst, General Logistics Department of PLA |
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Effective date of registration: 20220214 Address after: 102300 Beijing city Mentougou District Three Street No. 1 Patentee after: Institute of Military New Energy Technology, Institute of Systems Engineering, Academy of Military Sciences Address before: No. 10, Dongxin Road, Shenhe District, Shenyang Patentee before: SHENYANG XINGUANG GENERAL MACHINERY MANUFACTURINGCO.,LTD. |
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