CN105114647A - Single-seat control valve capable of realizing multi-stage pressure reduction - Google Patents
Single-seat control valve capable of realizing multi-stage pressure reduction Download PDFInfo
- Publication number
- CN105114647A CN105114647A CN201510666747.5A CN201510666747A CN105114647A CN 105114647 A CN105114647 A CN 105114647A CN 201510666747 A CN201510666747 A CN 201510666747A CN 105114647 A CN105114647 A CN 105114647A
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- China
- Prior art keywords
- valve
- seat
- sleeve
- valve body
- filler
- 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.)
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Classifications
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/32—Means for additional adjustment of the rate of flow
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a single-seat control valve capable of realizing multi-stage pressure reduction. The single-seat control valve comprises a sleeve, a buffer block, a sealing ring, filler, a pressure reduction hole, a dustproof pad, rollers and an S-shaped pipe, wherein a bonnet is arranged between a valve body and a fixing block, a valve rod enters an inner cavity of the valve body through the fixing block, the lower side of the valve rod is connected with a guide block and a valve element, and a valve seat is arranged on the inner wall of the valve body; the sleeve is arranged in an outlet channel, the pressure reduction hole is formed in the valve seat, and the buffer block is arranged at the bottom of the valve element; the filler is arranged on two sides of the guide block and the valve rod, the sealing ring is arranged between the sleeve and the guide block, and the dustproof pad is arranged at the junction of the valve rod and the fixing block; the rollers are arranged at the bottom of the valve body. The control valve is novel and practical in overall structure and can significantly reduce the differential pressure of media under the high differential pressure working condition, so that noise and wear of internal parts during working are reduced; besides, the control valve is convenient to carry, assemble and maintain and good in sealing performance.
Description
Technical field
The present invention relates to modulating valve technical field, specifically a kind of single-seat adjusting valve of multilevel decompression.
Background technique
Nowadays, in the industrial production in modern times, modulating valve plays vital effect.Modulating valve has another name called control valve, and in industrial automation process control field, the control signal exported by regulation unit, removes by power operation the final control unit changing the process parameters such as rate-of flow, pressure, temperature, liquid level; Modulating valve can be divided into: single-seat valve, double seated valve, telescoping valve, cage valve and membrane valve; Wherein single-seat adjusting valve is specially adapted to leak and requires comparatively tight, that pressure reduction is little clean medium occasion, in recent years Ge great factory for single-seat adjusting valve use widely.But existing single-seat adjusting valve also also exists many drawbacks, particularly for the operating mode that pressure reduction is larger, because the pressure reduction of medium is larger, the too fast words of valve flow velocity there will be the phenomenon of cavitation erosion, cavitation, thus causing modulating valve operation noise comparatively large, seriously washing away of fluid also makes modulating valve inner body be subject to very large wearing and tearing; And its sealing also has very large room for promotion, its volume is general comparatively large in addition, and it is very inconvenient to move assembling.
Summary of the invention
Goal of the invention: in order to overcome above deficiency, the object of this invention is to provide a kind of single-seat adjusting valve of multilevel decompression, this modulating valve overall structure Nover practical, under the operating mode of High Pressure Difference, significantly can reduce the pressure reduction of medium, thus the wearing and tearing of the noise that produces and inner body when reducing work, and its move, assemble easy to maintenance, good airproof performance.
Technological scheme: in order to realize above object, the single-seat adjusting valve of a kind of multilevel decompression of the present invention, comprise: valve body, valve gap, fixed block, valve rod, guide pad, spool, inlet passage, valve seat, screw and outlet passage, also comprise: sleeve, buffer stopper, seal ring, filler, decompression hole, dust-proof cushion, roller and S-shaped pipe road; Described valve gap is located between valve body and fixed block, and described valve rod enters body cavity through fixed block, is connected with guide pad and spool below described valve rod, and described valve seat is located on valve interior wall; Be provided with sleeve in described outlet passage, reduce the flow velocity of fluid; Described valve seat, with decompression hole, is provided with buffer stopper bottom described spool, and its decompression hole and buffer stopper cooperatively interact, and step-down slowing effect is obvious; Described guide pad, valve rod both sides are provided with filler, are provided with seal ring between described sleeve and guide pad, and its filler and seal ring improve the sealing of modulating valve on the one hand, decrease the mutual wearing and tearing of inner body on the other hand; The intersection of described valve rod and fixed block is provided with dust-proof cushion, prevents the erosion of extraneous dust, impurity; Described body base, with roller, is moved easy and convenient.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described sleeve is provided with S-shaped pipe road, the medium runner that described inlet passage and outlet passage are formed also is approximately a S type passage, the passage antihypertensive effect of its S type is good, can reduce the flow velocity of fluid fast, thus reduces noise and wearing and tearing.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described valve body and valve gap are fixed by screw compact siro spinning technology, load and unload easy to maintenance.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described seal ring inside is provided with counterbalance spring, and it supports seal ring by counterbalance spring after long term wear, thus ensures sealing effect.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described internal diameter of the seal ring is greater than the internal diameter of filler, and comprehensively, sealing is reliable in protection.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described valve seat, sleeve and valve interior wall obtain by quieter material, the noise produced when further reducing its work.
Preferably, the single-seat adjusting valve of above-mentioned a kind of multilevel decompression, described filler is obtained by graphite material, corrosion-resistant, and intensity is high, has certain pliability, and high temperature condition lower seal is effective.
Beneficial effect: compared with prior art, the present invention has the following advantages:
The single-seat adjusting valve of a kind of multilevel decompression 1, described in the present invention, its base decompression hole and buffer stopper cooperatively interact, and medium fluid is passed through at a slow speed from aperture, and does not directly quickly flow across passage, greatly reduce pressure reduction; Add the S-shaped pipe road of upper bush and the ingenious physics structural design of whole S type medium runner, step-down slowing effect is particularly evident, avoid the generation of cavitation erosion, cavitation phenomenon, thus the wearing and tearing that the noise sent when decreasing work and inner body cause because of fluid scouring.
The single-seat adjusting valve of a kind of multilevel decompression 2, described in the present invention, its filler obtained by graphite material is corrosion-resistant, intensity is high, and there is certain pliability, one side prevents the dust in flowing medium, impurity enters valve inner, and at high temperature its sealing effect is good, decrease the mutual frictionally damage of inner body on the other hand; Add the protective action of its dust-proof cushion dust, contaminating erosion to external world, therefore the inside and outside overall sealing of modulating valve is further strengthened.
The single-seat adjusting valve of a kind of multilevel decompression 3, described in the present invention, the noise produced when its valve seat obtained by quieter material, sleeve and valve interior wall further reduce its work.
The single-seat adjusting valve of a kind of multilevel decompression 4, described in the present invention, it passes through the fixing valve body of screw compact siro spinning technology and valve gap, and handling are simple, facilitate staff to check, keep in repair inner body.
The single-seat adjusting valve of a kind of multilevel decompression 5, described in the present invention, its seal ring, after long-term abrasion, supports seal ring by the counterbalance spring of its inside, and the internal diameter of seal ring own is greater than the internal diameter of filler, and therefore protection comprehensively, and sealing is reliable lasting.
The single-seat adjusting valve of a kind of multilevel decompression 6, described in the present invention, moves more easily laborsaving with the valve body of roller bottom it.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the single-seat adjusting valve of a kind of multilevel decompression of the present invention;
Fig. 2 is the structure for amplifying schematic diagram in A portion in Fig. 1.
In figure: 1 valve body, 2 valve gaps, 3 fixed blocks, 4-1 valve body, 4-2 guide pad, 4-3 spool, 5 inlet passages, 6 valve seats, 7 screws, 8 sleeves, 9 buffer stoppers, 10 seal rings, 11 fillers, 12 decompression holes, 13 dust-proof cushions, 14 outlet passages, 15 rollers, 16S type pipeline.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
As shown in Figure 1 and Figure 2, the single-seat adjusting valve of a kind of multilevel decompression of the present embodiment, comprise: valve body 1, valve gap 2, fixed block 3, valve rod 4-1, guide pad 4-2, spool 4-3, inlet passage 5, valve seat 6, screw 7 and outlet passage 14, also comprise: sleeve 8, buffer stopper 9, seal ring 10, filler 11, decompression hole 12, dust-proof cushion 13, roller 15 and S-shaped pipe road 16; Its valve gap 2 is located between valve body 1 and fixed block 3, and valve rod 4-1 enters valve body 1 inner chamber through fixed block 3, is connected with guide pad 4-2 and spool 4-3 below valve rod 4-1, and valve seat 6 is located on valve body 1 inwall; Be provided with sleeve 8 in its outlet passage 14, valve seat 6, with decompression hole 12, is provided with buffer stopper 9 bottom spool 4-3; Its guide pad 4-2, valve rod 4-1 both sides are provided with filler 11, are provided with seal ring 10 between sleeve 8 and guide pad 4-2, and the intersection of valve rod 4-1 and fixed block 3 is provided with dust-proof cushion 13; With roller 16 bottom its valve body 1, move easily laborsaving.
Preferred further its sleeve 8 is provided with S-shaped pipe road 16 as shown in Figure 1 and Figure 2, and the medium runner that inlet passage 5 and outlet passage 14 are formed also is approximately a S type passage, and step-down slowing effect is good; Its valve body 1 and valve gap 2 are fixed by screw 7 compact siro spinning technology, load and unload easy to maintenance; Its seal ring 10 inside is provided with counterbalance spring, and seal ring 10 internal diameter is greater than the internal diameter of filler 11, and sealing is reliable lasting; Its valve seat 6, sleeve 8 and valve body 1 inwall obtain by quieter material, the noise produced when further reducing its work, and filler 11 is obtained by graphite material, corrosion-resistant, and intensity is high, has certain pliability, and high temperature condition lower seal is effective.
The overall work principle of modulating valve of the present invention is: first medium fluid enters in valve body 1 by inlet passage 5, and its valve rod 4-1 drives guide pad 4-2 to move up and down together with spool 4-3 through fixed block 3; When entering outlet passage 14 without the need to medium fluid, valve rod 4-1 moves down, until spool 4-3 and valve seat 6 inwall connect; When needs medium fluid enters outlet passage 14, spool 4-3 starts to move up according to predefined value, until spool 4-3 and seal ring 10 connect, now reaches maximum and passes through flow; When the flow that medium passes through reaches controlling value, valve rod 4-1 transfixion, first medium fluid enters in valve seat 6 by decompression hole 12, then a part of fluid is by the aperture in buffer stopper 9, another part then directly by the S-shaped pipe road of sleeve 8, finally merge together medium fluid be discharged from outlet passage 14.During work, valve rod 4-1, guide pad 4-2 and spool 4-3 are moving up and down in process, owing to there being the buffer function of seal ring 10, filler 11 and dust-proof cushion 13, thus decreasing the mutual wearing and tearing of modulating valve inner body, also improve the sealability of modulating valve entirety simultaneously.
The principle that modulating valve multilevel decompression of the present invention slows down is: first medium fluid enters from inlet passage 5, enters valve seat 6 by decompression hole 12, and it is slack-off by the medium fluid flow velocity of decompression hole 12, and compare with fluid direct admission valve seat 6, pressure reduction obviously reduces; When spool 4-3 moves up by full-shut position, because now the upper and lower pressure reduction of spool 4-3 is very large, be therefore provided with buffer stopper 9, reduce pressure reduction by the pipeline in buffer stopper 9, slow down flow velocity; Then medium fluid is by sleeve 8, and the step-down being carried out afterbody by the S-shaped pipe road in sleeve 8 is slowed down; S-shaped pipe road in its middle sleeve and whole S type medium runner are by physical ingehious design, and deceleration antihypertensive effect is particularly evident; Therefore present invention, avoiding the generation of cavitation erosion, cavitation phenomenon, thus the wearing and tearing that the noise sent when decreasing work and inner body cause because of fluid scouring.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. the single-seat adjusting valve of a multilevel decompression, comprise: valve body (1), valve gap (2), fixed block (3), valve rod (4-1), guide pad (4-2), spool (4-3), inlet passage (5), valve seat (6), screw (7) and outlet passage (14), is characterized in that: also comprise: sleeve (8), buffer stopper (9), seal ring (10), filler (11), decompression hole (12), dust-proof cushion (13), roller (15) and S-shaped pipe road (16);
Described valve gap (2) is located between valve body (1) and fixed block (3), and described valve rod (4-1) enters valve body (1) inner chamber through fixed block (3), and described valve rod (4-1) below is connected with guide pad (4-2) and spool (4-3); Be provided with sleeve (8) in described outlet passage (14), described valve seat (6) is located on valve body (1) inwall, and described valve seat (6) is with decompression hole (12), and described spool (4-3) bottom is provided with buffer stopper (9); Described guide pad (4-2), valve rod (4-1) both sides are provided with filler (11), are provided with seal ring (10) between described sleeve (8) and guide pad (4-2), and the intersection of described valve rod (4-1) and fixed block (3) is provided with dust-proof cushion (13); Described valve body (1) bottom is with roller (15).
2. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described sleeve (8) is provided with S-shaped pipe road (16), and the medium runner that described inlet passage (5) and outlet passage (14) are formed also is approximately a S type passage.
3. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described valve body (1) and valve gap (2) are fixed by screw (7) compact siro spinning technology.
4. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described seal ring (10) inside is provided with counterbalance spring.
5. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described seal ring (10) internal diameter is greater than the internal diameter of filler (11).
6. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described valve seat (6), sleeve (8) and valve body (1) inwall obtain by quieter material.
7. the single-seat adjusting valve of a kind of multilevel decompression according to claim 1, is characterized in that: described filler (11) is obtained by graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666747.5A CN105114647A (en) | 2015-10-16 | 2015-10-16 | Single-seat control valve capable of realizing multi-stage pressure reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666747.5A CN105114647A (en) | 2015-10-16 | 2015-10-16 | Single-seat control valve capable of realizing multi-stage pressure reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114647A true CN105114647A (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510666747.5A Pending CN105114647A (en) | 2015-10-16 | 2015-10-16 | Single-seat control valve capable of realizing multi-stage pressure reduction |
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| Country | Link |
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| CN (1) | CN105114647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966441A (en) * | 2019-12-31 | 2020-04-07 | 天津塘沽瓦特斯阀门有限公司 | Submerged relief valve based on water conservancy relief |
| CN113898755A (en) * | 2021-12-08 | 2022-01-07 | 艾肯（江苏）工业技术有限公司 | Intelligent high-temperature-resistant high-pressure-resistant leakage-proof sleeve adjusting valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5765814A (en) * | 1995-11-15 | 1998-06-16 | Fisher Controls International, Inc. | Flow rate stabilizer for throttling valves |
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
| CN202646752U (en) * | 2012-03-23 | 2013-01-02 | 浙江三方控制阀股份有限公司 | Three-stage pressure reduction regulating valve |
| CN203214900U (en) * | 2013-04-10 | 2013-09-25 | 乐山市热工仪表有限公司 | Hard and soft dual-sealing throttling cut-off valve |
| CN204201124U (en) * | 2014-09-18 | 2015-03-11 | 浙江亿科阀门有限公司 | Pneumatic control valve door |
| CN204328187U (en) * | 2014-12-18 | 2015-05-13 | 高特自控阀门有限公司 | Noise reduction decompression regulating valve |
-
2015
- 2015-10-16 CN CN201510666747.5A patent/CN105114647A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5765814A (en) * | 1995-11-15 | 1998-06-16 | Fisher Controls International, Inc. | Flow rate stabilizer for throttling valves |
| CN102359611A (en) * | 2011-09-29 | 2012-02-22 | 天津百利展发集团有限公司 | Washout-preventing soft-sealing single-seat regulating valve |
| CN202646752U (en) * | 2012-03-23 | 2013-01-02 | 浙江三方控制阀股份有限公司 | Three-stage pressure reduction regulating valve |
| CN203214900U (en) * | 2013-04-10 | 2013-09-25 | 乐山市热工仪表有限公司 | Hard and soft dual-sealing throttling cut-off valve |
| CN204201124U (en) * | 2014-09-18 | 2015-03-11 | 浙江亿科阀门有限公司 | Pneumatic control valve door |
| CN204328187U (en) * | 2014-12-18 | 2015-05-13 | 高特自控阀门有限公司 | Noise reduction decompression regulating valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966441A (en) * | 2019-12-31 | 2020-04-07 | 天津塘沽瓦特斯阀门有限公司 | Submerged relief valve based on water conservancy relief |
| CN113898755A (en) * | 2021-12-08 | 2022-01-07 | 艾肯（江苏）工业技术有限公司 | Intelligent high-temperature-resistant high-pressure-resistant leakage-proof sleeve adjusting valve |
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Application publication date: 20151202 |