CN1162710A - Balanced high pressure regulating valve - Google Patents
Balanced high pressure regulating valve Download PDFInfo
- Publication number
- CN1162710A CN1162710A CN 96103180 CN96103180A CN1162710A CN 1162710 A CN1162710 A CN 1162710A CN 96103180 CN96103180 CN 96103180 CN 96103180 A CN96103180 A CN 96103180A CN 1162710 A CN1162710 A CN 1162710A
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- valve plug
- fixed valve
- external diameter
- fixed
- worm gear
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Abstract
A balanced high-pressure regulation valve has a fixed valve core, which is fixed to the left and right flanges and matched with movable valve core outside it in slide mode. The outer comb dents of fixed valve core and the inner comb dents of movable one constitute more annular eddy pressure-reducing cavities. The first and the last cavities are respecitvely connected to air inlet and outlet of fixed valve core. The external diameter of fixed valve core varies from each other. There is a worm-nut driver in the secondary sealed cavity. Its advantages include no generation of high-frequency vibration and not be damaged by friction.
Description
The present invention relates to a kind of valve, particularly a kind of balanced high pressure regulating valve.
The purposes of septum valve has: be used for heat power station bypass machine group system, be used for the pressure regulator valve in the petrochemical industry oil transport pipeline, be used for reduction valve in methyl alcohol, hydro carbons and the condensate pump.The septum valve that uses is because pressure produces stress at present, cause dither with the medium eddy current, often make the spool fracture, cause the consequence of valve infringement, septum valve in using at present mostly is Z type or corner-shape structure, by adorning complicated and taking than large space, the waste metal pipe, increase the expense of pressing the dress aspect, some of existing septum valve is called the balanced type modulating valve, it utilizes self pressure balance to fall a part of switch and regulates resistance, but this resistance can not equilibrate to null value.
The purpose of this invention is to provide a kind of operation does not have dither, and driving mechanism is simple, valve body switch resistance is little, flexibly, and the septum valve of long service life.
The object of the present invention is achieved like this: fixed valve plug has suction port and air outlet, with intermediate interlayer separately with its sealing, it and a left side, right flange is fixedly connected, the movable valve plug that is slidingly matched with fixed valve plug is arranged on the fixed valve plug external diameter, fixed valve plug external diameter broach and movable valve plug internal diameter broach form a plurality of ring vortex relief chambers, the fixed valve plug suction port is communicated with porous with first eddy current relief chamber, last annular chamber is communicated with porous with the fixed valve plug air outlet, the fixed valve plug external diameter is a changeable gauge structure, changeable gauge structure is positioned at when valve is in closed condition, the fixed valve plug external diameter of each ring vortex relief chamber correspondence, be to outlet section from the fixed valve plug entrance and increase progressively arrangement, form big cylinder step of a ratio, be that fixed valve plug left side section external diameter is greater than eddy current relief chamber comb-tooth segments external diameter, this comb-tooth segments external diameter is again greater than the right section of fixed valve plug external diameter, on movable valve plug, have Sealing, the flange at fixed valve plug external diameter and inner walls and two ends forms a hermetic secondary seal chamber, have a worm gear and nut transmission device in this secondary seal chamber, be to have outside thread on the movable valve plug external diameter, suit worm gear and nut on this screw thread, the worm gear and nut external diameter is the worm gear profile of tooth, and and worm meshing, inner walls has the restraining groove that cooperates with worm gear and nut.
The present invention is not that mobile fixed valve plug is regulated flow and pressure but regulated gap realization pressure that overcoat is movable valve plug and fixed valve plug and the variation of flow, through a plurality of eddy current relief chambers pressure is dropped in the predetermined range, because the movable valve plug water outlet side is a kind of telescoping structure, its intensity is higher, the problem that will never occur rupturing, first annular chamber of the present invention and last annular chamber have also played the balance whole valve body, prevent the generation of dither.Reduce the parts depreciation friction.The present invention is a kind of throughway valve, and promptly two flange straight structures can be installed as common valve, makes medium import and export and pipeline on same straight line, has promptly reduced mounting cost and has reduced the leakage point on the pipeline again.Polycylindser ledge structure of the present invention, first annular chamber and last annular chamber are all had make valve produce the trend of closing by design, in movable valve plug first annular chamber of the present invention and last the annular chamber chamber variation of two ends area not only can with close, opening resistance is designed to null value, can also realize reasonably open and close and adjusting resistance arbitrarily, both guaranteed to close not leak, accomplish again to open easily, wearing and tearing, the friction of valve parts have been reduced, reduced the excessive phenomenon of local contact stress, the working life of at all having improved valve.The present invention has the secondary seal cavity configuration, and it guarantees that the present invention do not leak under high-temperature high-pressure state, make the present invention better reliable under High Temperature High Pressure.The flow and the pressure of medium in the worm gear and nut transmission device energy regulating valve of the present invention.Because drive unit rational in infrastructure makes the processing technology of valve become more reasonable simple, but common cold machining machine tool with regard to the manufacturing valve, this drive unit makes that the overall volume of valve is little, and switch is freely, flexibly, long service life.
Fig. 1 is the sectional view of structural front view of the present invention;
Fig. 2 is the B-B sectional view of Fig. 1.
Below in conjunction with drawings and Examples the present invention is further described.
As shown in Figure 1, fixed valve plug 10 has suction port 25 and air outlet 26, with intermediate interlayer separately with its sealing, it and a left side, right flange 1,27 is fixedly connected, on fixed valve plug 10 external diameters, have and fixed valve plug 10 movable valve plug 9 that is slidingly matched, fixed valve plug 10 external diameter broach and movable valve plug 9 internal diameter broach form the eddy current relief chamber of a plurality of annular chambers, as shown in Figure 1, be four eddy current relief chambers in the present embodiment, fixed valve plug suction port 25 and first annular chamber 23 are communicated with porous, the aperture that is communicated with is the rectification hole in a plurality of different apertures, last annular chamber 24 and fixed valve plug 10 air outlets 26 are communicated with porous and identical aperture, fixed valve plug 10 external diameters are a changeable gauge structure, changeable gauge structure is positioned at when valve is in closed condition, the fixed valve plug external diameter of each ring vortex relief chamber correspondence, be to outlet section from the fixed valve plug entrance and increase progressively arrangement, form big cylinder step of a ratio, be fixed valve plug left side section external diameter greater than eddy current relief chamber comb-tooth segments external diameter again greater than the right section of fixed valve plug external diameter, the principle of this arrangement works is: when valve closing, movable valve plug 9 left end areas are less than the right-hand member area in first annular chamber 23, because fluid pressure action, the stressed left end that is greater than of movable valve plug 9 right-hand members, make movable valve plug 9 produce the trend that moves right forever, because the existence of this power prevents movable valve plug 9 and produces dither, can obtain the switch force of free position according to the setting of cross section difference, reach little power switching purposes, this is the inaccessiable the optimum state of present any modulating valve.Last annular chamber 24 is identical with the effect prototype of first annular chamber 23, no longer repeat specification here.On movable valve plug 9, have Sealing.It is the metal elastic-sealed circle 11 that is fixed on right flange 27 interior edge faces, and it is sleeved on the fixed valve plug 10 simultaneously, and when being in closed condition, movable valve plug 9 right-hand members lean against on metal elastic-sealed Figure 11, and makes metal elastic-sealed circle 11 little distortion, forms sealing state.Fixing a slip flange 5 on the right side of movable valve plug 9, having seal ring 6 in the annular chamber that this slip flange 5 and movable valve plug 9 left ends form, sealing ring 6 can be that resistant to elevated temperatures non-metal part also can be a metalwork.The Sealing at movable valve plug 9 two ends can guarantee that valve does not leak when unlatching or closed condition.As shown in Figure 1, the flange at fixed valve plug external diameter and inner walls and valve body two ends forms a hermetic secondary seal chamber 28, have worm gear and nut 7 transmission devices in this secondary seal chamber 28, as shown in Figure 2, have outside thread on movable valve plug 9 external diameters, suit worm gear and nut 7 on this screw thread, worm gear and nut 7 external diameters are the worm gear profile of tooth, and with a worm screw 15 engagement, inner walls has the restraining groove 12 that cooperates with worm gear and nut, worm gear and nut 7 is positioned at restraining groove 12, when worm gear and nut 7 rotates, will force movable valve plug 9 to move back and forth vertically, finish unlatching or close moving doing, thereby reach the effect of regulating valve gap set flow and pressure.As shown in Figure 1, fixing locating stud 20 at movable valve plug 9 left ends, locating stud 20 the other ends are positioned at and are parallel to axial slideway 21 on the housing, locating stud 20 with guaranteed movable valve plug 9 steadily moving vertically cooperating of slideway 21, restriction movable valve plug 9 rotatablely moves.As shown in Figure 1, fixed valve plug suction port 25 is the rectification hole in a plurality of different apertures with the aperture that first annular chamber 23 is communicated with, its effect is to guarantee that gas evenly enters first annular chamber 23, last annular chamber 24 exports 26 with the connection of many identical apertures with fixed valve plug, its effect is to make by annular chamber 24 effluent airs to enter fixed valve plug outlet 26 through over commutation, prevents that turbulent flow from taking place.Have a shower nozzle 4 in the fixed valve plug air outlet 26, shower nozzle 4 external water pipes 2, its effect is to spray in the fixed valve plug outlet 26 from shower nozzle 4 by the cold water that intake pipe 2 is introduced outside certain pressure, makes internal high temperature gas drop to setting temperature, plays the effect that reduces gas temperature.Fixing current plate 3 at the air outlet end.Its effect is: turbulent gas by reducing behind many apertures of current plate 3 through the decompression desuperheat, reduce eddy current, and make gas flow stable, be convenient to detect and observe.Below by narration shown in Figure 1 working procedure of the present invention: high compressed steam enters first eddy current relief chamber 23 by fixed valve plug suction port 25 by turbulent hole, worm gear and nut 7 transmission devices drive this moment movable valve plug 9 is moved to the left, so as shown in Figure 1, all the other four eddy current relief chambers 22 are on state, steam enters fixed valve plug air outlet 26 by the rectification hole of last ring vortex relief chamber 24 through reducing pressure several times, nozzle 4 ejection cooling waters in the air outlet 26, its effect is: the temperature that reduces high-temperature vapour, make steam reach the purpose of the desuperheat that designing requirement rises, steam is finally by current plate 3 outputs.Worm gear and nut 7 rotates round about can be with valve closing.
Claims (3)
1, a kind of balanced high pressure regulating valve, it is characterized in that: fixed valve plug (10) has suction port (25) and air outlet (26), with intermediate interlayer separately with its sealing, it is fixedlyed connected with right flange (27) with left flange (1), the movable valve plug (9) that is slidingly matched with fixed valve plug (10) is arranged on fixed valve plug (10) external diameter, fixed valve plug (10) broach and movable valve plug (9) internal diameter broach form a plurality of ring vortex relief chambers (22), fixed valve plug suction port (25) is communicated with porous with first eddy current relief chamber (23), last annular chamber (24) is communicated with porous with fixed valve plug air outlet (26), fixed valve plug (10) external diameter is a changeable gauge structure, changeable gauge structure is positioned at when valve is in closed condition, fixed valve plug (10) external diameter of each ring vortex relief chamber correspondence, be to outlet section from fixed valve plug inlet (25) section and increase progressively arrangement, form big cylinder step of a ratio, be that fixed valve plug (10) left side section external diameter is greater than eddy current relief chamber (22) comb-tooth segments external diameter, this comb-tooth segments external diameter is again greater than the right section of fixed valve plug (10) external diameter, on movable valve plug (9), have Sealing, the flange at fixed valve plug (10) external diameter and inner walls and two ends forms a hermetic secondary seal chamber (28), have a worm gear and nut (7) transmission device in this secondary seal chamber, be to have outside thread on movable valve plug (9) external diameter, suit worm gear and nut (7) on this screw thread, worm gear and nut (7) external diameter is the worm gear profile of tooth, and with worm screw (15) engagement, inner walls has the restraining groove (12) that cooperates with worm gear and nut.
2, a kind of balanced high pressure regulating valve according to claim 1, it is characterized in that: fixed valve plug suction port (25) is the rectification hole in a plurality of different apertures with the aperture that first annular chamber (23) is communicated with, and last annular chamber (24) is communicated with the rectification hole of fixed valve plug outlet (26) with identical bore.
3, a kind of balanced high pressure regulating valve according to claim 1 and 2, it is characterized in that: have a shower nozzle (4) in the described fixed valve plug air outlet (26), shower nozzle (4) external water pipe (2), end is being fixed current plate (3) in fixed valve plug air outlet (26), and current plate (3) axial distribution many apertures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96103180 CN1059957C (en) | 1996-04-18 | 1996-04-18 | Balanced high pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96103180 CN1059957C (en) | 1996-04-18 | 1996-04-18 | Balanced high pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1162710A true CN1162710A (en) | 1997-10-22 |
| CN1059957C CN1059957C (en) | 2000-12-27 |
Family
ID=5117899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96103180 Expired - Fee Related CN1059957C (en) | 1996-04-18 | 1996-04-18 | Balanced high pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059957C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260030A (en) * | 2019-06-19 | 2019-09-20 | 浙江福瑞科流控机械有限公司 | A kind of quick-acting valve door drive mechanism for realizing that promotion, rotation, lock are tight |
-
1996
- 1996-04-18 CN CN 96103180 patent/CN1059957C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260030A (en) * | 2019-06-19 | 2019-09-20 | 浙江福瑞科流控机械有限公司 | A kind of quick-acting valve door drive mechanism for realizing that promotion, rotation, lock are tight |
| CN110260030B (en) * | 2019-06-19 | 2020-08-14 | 浙江福瑞科流控机械有限公司 | Quick opening and closing valve driving mechanism for realizing lifting, rotating and locking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1059957C (en) | 2000-12-27 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |