CN202733089U - Pressure release type self-operated pressure regulator - Google Patents
Pressure release type self-operated pressure regulator Download PDFInfo
- Publication number
- CN202733089U CN202733089U CN 201220303273 CN201220303273U CN202733089U CN 202733089 U CN202733089 U CN 202733089U CN 201220303273 CN201220303273 CN 201220303273 CN 201220303273 U CN201220303273 U CN 201220303273U CN 202733089 U CN202733089 U CN 202733089U
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- Prior art keywords
- valve
- pressure
- type self
- valve body
- pressure regulator
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000012856 packing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 abstract description 31
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a pressure release type self-operated pressure regulator, which comprises a valve body, a spool, a valve seat, a sealing gasket, a bellows assembly, a bonnet, an adjusting disk, a sealing packing, a packing gland, an adjusting spring, uprights, an actuator, a thrust ball bearing, a spring seat, an adjusting washer, a valve stem, a lower holddown, a bottom cover and connecting parts, the valve body is a three-way valve body, the lower end of the three-way valve body is provided with a mounting connector, the valve body is provided with an upper cavity and a lower cavity, the valve seat is mounted in the lower cavity, the spool is fixed on the lower end of the valve stem and mounted upside down under the valve seat, the lower end of the valve stem can be guided and positioned in the guiding hole of the bottom cover, the upper end of the valve stem is connected with a push rod of the actuator, the thrust ball bearing is mounted at the joint between the adjusting disk and the valve stem, and a liquid inlet and a liquid-filling inlet of the actuator are provided with diffuse liquid/air nozzles. The pressure release type self-operated pressure regulator has the advantages that the structure is simple, the mounting precision and positioning precision of the pressure release type self-operated pressure regulator are high, a corrugated diaphragm can be effectively protected, and has a long service life, and the pressure release type self-operated pressure regulator is particularly suitable for automatically regulating and controlling upstream pressure.
Description
Technical field
The utility model relates to a kind of self-contained pressure regulator, particularly relate to a kind of for the pipe-line system pressure release, i.e. the pressure-relief type self-contained pressure regulator of pressure stability before the control valve.
Background technique
The structural type of normally used self-contained pressure regulator is in the prior art: spool is in normally open when normal working, stablizing for pipeline pressure behind the control valve mostly, namely pipeline pressure slightly has rising behind the direct-operated regulator valve, the pressure medium that is incorporated into final controlling element overcomes the equilibrant of Regulation spring, valve opening is turned down, so that downstream pressure progressively reduces, tending to balance at last makes downstream pressure remain on setting value, namely is mainly used in decompression and the voltage stabilizing of downstream pressure.
And current need to direct-operated regulator, being used for the device systems of control upstream pressure or the user demand of process pipe and being on the increase.And the spool of existing structure is in the direct-operated regulator of normally open and can't be preferably be used for the control upstream pressure: namely when direct-operated regulator valve preceding pipeline pressure raises, the pressure medium that is incorporated into final controlling element is opened greatly valve opening, plays the pressure release effect so that the effect that upstream pressure progressively reduces.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of pressure-relief type self-contained pressure regulator that is applicable to the front pressure stability of control valve.
Technical solution of the present utility model is: a kind of pressure-relief type self-contained pressure regulator, be comprised of main valve and final controlling element, main valve comprises valve body 1, spool 2, valve seat 3, sealing gasket 4, bellows component 5, valve gap 6, adjustment disk 7, stuffing box packing 8, Gland 9, Regulation spring 10, column 11, final controlling element 12, thrust ball bearing 13, spring seat 14, spacer 15, valve rod 16, press table 17, bottom 18 and coupling.Final controlling element is assembled with push rod 128 by top board 121, lower membrane cover 122, pallet 123, upper membrane cover 124, convolution diaphragm 125, feed liquor/gas port 126, filling opening 127.
It is characterized in that described valve body is the lower end with the three way valve that connection mouth is installed, be provided with up and down two valve pockets in the valve body, valve seat is housed in the lower valve chamber, between valve seat and valve body sealing gasket is housed.The upper end of bellows component is welded on the valve rod, and the lower seal plate of its lower end is fixed in the valve body by the sealing gasket sealing.Spool is connected and fixed in the lower end of valve rod, when spool and valve base sealing with upper lower valve chamber seal isolation, the valve rod upper end links with the push rod of final controlling element, valve gap is fixed on the valve body with double-screw bolt, nut seal, and the column that is fixed on the press table is used for supporting fixedly final controlling element, and the Regulation spring lower end is contained in the adjustment disk, and locate with spring seat its upper end, adjustment disk utilizes screw thread to be fixed on the valve gap, and the valve gap stuffing hole installs stuffing box packing additional, by compressing the sealing between Gland assurance valve rod and the valve gap.
Preferably, described spool is that upside-down mounting is in the below of valve seat.
Preferably, add thrust ball bearing at described adjustment disk and valve rod matching part.
Preferably, described bottom is provided with the guide sleeve that play the guiding role when supplying valve rod to move up and down.
Preferably, the liquid entering hole on the described final controlling element and filling opening are provided with diffusion hydrojet/gas port.
Preferably, the top board of described final controlling element adopts the machine shaping of steel plate flanging.
The beneficial effect that the utility model brings is: product structure is simple, Location accuracy is installed high, has good convolution diaphragm protective function, the convolution diaphragm long service life, and be specially adapted to the variation of pressure before the adjusting control valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the final controlling element of original direct-operated regulator.
Fig. 3 is the partial structurtes enlarged diagram of final controlling element liquid entering hole and filling opening in the utility model.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the structural representation of final controlling element top board in the utility model.
Fig. 6 is the left view of Fig. 5 final controlling element top board.
Among the figure, membrane cover, 123-pallet, the upper membrane cover of 124-, 125-convolution diaphragm, 126-feed liquor/gas port, 127-filling opening, 128-push rod, 129-permanent seat ring under 1-valve body, 2-spool, 3-valve seat, 4-sealing gasket, 5-bellows component, 6-valve gap, 7-adjustment disk, 8-stuffing box packing, 9-Gland, 10-Regulation spring, 11-column, 12 final controlling element, 13-thrust ball bearing, 14-spring seat, 15-spacer, 16-valve rod, 17-press table, 18-bottom, 121-top board, the 122-.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Among the embodiment such as Fig. 1, a kind of pressure-relief type self-contained pressure regulator, be comprised of main valve and final controlling element, main valve comprises valve body 1, valve seat 2, spool 3, sealing gasket 4, bellows component 5, valve gap 6, adjustment disk 7, stuffing box packing 8, Gland 9, Regulation spring 10, column 11, thrust ball bearing 13, spring seat 14, spacer 15, valve rod 16, press table 17, bottom 18 and coupling.Final controlling element is assembled with push rod 128 by top board 121, lower membrane cover 122, pallet 123, upper membrane cover 124, convolution diaphragm 125, feed liquor/gas port 126, filling opening 127.
Described valve body is the lower end with the three way valve that connection mouth is installed, and is provided with up and down two valve pockets in the valve body, and valve seat is housed in the lower valve chamber, and the sealing gasket sealing is housed between valve seat and valve body.The upper end of bellows component is welded on the valve rod, and the lower seal plate of its lower end is fixed in the valve body by the sealing gasket sealing.Spool is fixedly connected in the lower end of valve rod, and with upper lower valve chamber seal isolation, the valve rod upper end links with the push rod of final controlling element when spool and valve base sealing.Valve gap is fixed on the valve body with double-screw bolt, nut seal, fixedly the column on the press table is used for supporting fixedly final controlling element, the Regulation spring lower end is contained in the adjustment disk, and locate with spring seat its upper end, adjustment disk utilizes screw thread to be fixed on the outside thread of valve gap, by adjusting the position of adjustment disk, can change the length of Regulation spring, reach the effect of regulating the Regulation spring pretightening force.
Described spool be upside-down mounting in the below of valve seat, its normal working is closed condition.
Be set in the spacer between valve rod and the valve gap inner chamber, can select different thickness according to the size of required setting adjusting pressure and flow, play to limit and regulate pilot pressure and range of flow, the effect that improves control sensitivity and precision.
Add thrust ball bearing at adjustment disk and valve rod matching part, can effectively avoid when the rotation adjustment disk, causing that easily Regulation spring twists, and the drawback of control accuracy is regulated in impact.
The bottom sealing is fixed on valve body lower end, and is processed with the pilot hole for valve rod lower end guiding, can play and improve the valve rod Location accuracy, effectively prevents the effect of spool vibration.
Utilize pressure pipe to be communicated with between the pressure tappings of valve body entrance point and the final controlling element feed liquor/gas port, the initial setting of valve is regulated pressure by regulating adjustment disk, adjusts the pretightening force of Regulation spring and sets.
Final controlling element such as the original direct-operated regulator of Fig. 2 is to be fixed on the top board by the permanent seat ring isolation with bolt and nut, and top board is fixed on the column again, and described top board is the flat board that processes with foundry goods or steel plate.This kind connecting structure: final controlling element and top board are fixing by the permanent seat ring isolation, need two parts of top board and permanent seat ring, thereby processing and assembling is complicated, easily cause permanent seat ring loosening if be given a shock impact, cause that the location is inaccurate.And final controlling element liquid entering hole, filling opening be the straight-through type tapped hole, and the medium that namely injects in the final controlling element injects directly on the convolution diaphragm.
As shown in Figure 3, Figure 4, the liquid entering hole of final controlling element of the present utility model and filling opening are processed with diffusion hydrojet/puff prot, and namely its lower end that is used for the tapped hole of connection PRESSURE PIPE is blind hole, and the circumferencial direction bottom tapped blind hole, four radial holes of uniform processing.Be that radially aperture is diffusion type and is injected in the final controlling element so that enter medium in the final controlling element, the direct injection that can effectively protect convolution diaphragm to avoid medium causes local scour, thereby greatly improves the working life of convolution diaphragm.
Such as Fig. 5, shown in Figure 6, the top board of the final controlling element in the utility model adopts the machine shaping of sheet metal flanging, is " U " type structure, has both simplified product structure, reduces manufacture cost, is convenient to again its installation on column, has improved the installation Location accuracy.
Working principle of the present utility model is: valve body entrance point pressure tappings is connected with final controlling element feed liquor/gas port by PRESSURE PIPE, and the normal working spool is in closed condition.When the valve inlet end pressure raises, the pressure medium of introducing final controlling element upper film chamber by PRESSURE PIPE raises, making convolution diaphragm promote push rod moves down, the promotion spool is lifted off a seat, the medium circulation area increases, flow increases so that inlet pressure reduces, and tending to balance at last makes inlet pressure remain on setting value.Otherwise when valve body entrance point pressure decreased, the pressure medium of final controlling element upper film chamber reduces, and the Regulation spring pretightening force promotes spool and moves up, spool is near valve seat, the medium circulation area reduces, so that inlet pressure raises, tending to balance at last makes inlet pressure remain on setting value.
Claims (6)
1. pressure-relief type self-contained pressure regulator, comprise valve body, spool, valve seat, sealing gasket, bellows component, valve gap, adjustment disk, stuffing box packing, Gland, Regulation spring, column, final controlling element, thrust ball bearing, spring seat, spacer, valve rod, press table, bottom and coupling, it is characterized in that described valve body is that the lower end is with the three way valve that connection mouth is installed, be provided with up and down two valve pockets in the valve body, valve seat is housed in the lower valve chamber, between valve seat and valve body sealing gasket is housed, the upper end of bellows component is welded on the valve rod, the lower seal plate of its lower end is fixed in the valve body by the sealing gasket sealing, spool is connected and fixed in the lower end of valve rod, when spool and valve base sealing with upper lower valve chamber seal isolation, the valve rod upper end links with the push rod of final controlling element, the valve gap double-screw bolt, nut seal is fixed on the valve body, the column that is fixed on the valve gap is used for supporting fixedly final controlling element, the Regulation spring lower end is contained in the adjustment disk, and locate with spring seat its upper end, adjustment disk utilizes screw thread to be fixed on the valve gap, the valve gap stuffing hole installs stuffing box packing additional, by compressing the sealing between Gland assurance valve rod and the valve gap.
2. a kind of pressure-relief type self-contained pressure regulator according to claim 1, it is characterized in that: described spool is that upside-down mounting is in the below of valve seat.
3. a kind of pressure-relief type self-contained pressure regulator according to claim 1 is characterized in that: add thrust ball bearing at described adjustment disk and valve rod matching part.
4. a kind of pressure-relief type self-contained pressure regulator according to claim 1 is characterized in that: the guide sleeve that described bottom play the guiding role when being provided with and moving up and down for valve rod.
5. a kind of pressure-relief type self-contained pressure regulator according to claim 1, it is characterized in that: the liquid entering hole on the described final controlling element and filling opening are provided with diffusion hydrojet/gas port.
6. a kind of pressure-relief type self-contained pressure regulator according to claim 1 is characterized in that: the top board employing sheet metal flanging machine shaping of described final controlling element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303273 CN202733089U (en) | 2012-06-21 | 2012-06-21 | Pressure release type self-operated pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220303273 CN202733089U (en) | 2012-06-21 | 2012-06-21 | Pressure release type self-operated pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733089U true CN202733089U (en) | 2013-02-13 |
Family
ID=47658790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220303273 Expired - Fee Related CN202733089U (en) | 2012-06-21 | 2012-06-21 | Pressure release type self-operated pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733089U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542153A (en) * | 2013-10-30 | 2014-01-29 | 杭州春江阀门有限公司 | Overpressure prevention pressure-relief valve |
| CN104154286A (en) * | 2014-08-15 | 2014-11-19 | 攀钢集团攀枝花钢钒有限公司 | Regulating valve for inflatable sealing system |
| CN104214383A (en) * | 2014-09-01 | 2014-12-17 | 浙江智杰阀业有限公司 | Self-operated pressure regulating valve with self-aligning spring seat |
| CN109611564A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A low flow resistance multifunctional liquid methane bacteria valve |
| CN110947265A (en) * | 2019-10-16 | 2020-04-03 | 北京航化节能环保技术有限公司 | Load-adjustable long-throat venturi scrubber |
| CN113324075A (en) * | 2021-04-21 | 2021-08-31 | 浙江苍南仪表集团东星能源科技有限公司 | Integral balanced valve core subassembly and voltage regulator |
| CN115435124A (en) * | 2022-08-11 | 2022-12-06 | 杭州菲榭尔科技有限公司 | Self-operated nitrogen seals governing valve for pressure relief device |
-
2012
- 2012-06-21 CN CN 201220303273 patent/CN202733089U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542153A (en) * | 2013-10-30 | 2014-01-29 | 杭州春江阀门有限公司 | Overpressure prevention pressure-relief valve |
| CN104154286A (en) * | 2014-08-15 | 2014-11-19 | 攀钢集团攀枝花钢钒有限公司 | Regulating valve for inflatable sealing system |
| CN104214383A (en) * | 2014-09-01 | 2014-12-17 | 浙江智杰阀业有限公司 | Self-operated pressure regulating valve with self-aligning spring seat |
| CN109611564A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A low flow resistance multifunctional liquid methane bacteria valve |
| CN110947265A (en) * | 2019-10-16 | 2020-04-03 | 北京航化节能环保技术有限公司 | Load-adjustable long-throat venturi scrubber |
| CN113324075A (en) * | 2021-04-21 | 2021-08-31 | 浙江苍南仪表集团东星能源科技有限公司 | Integral balanced valve core subassembly and voltage regulator |
| CN115435124A (en) * | 2022-08-11 | 2022-12-06 | 杭州菲榭尔科技有限公司 | Self-operated nitrogen seals governing valve for pressure relief device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180621 |