CN102278503A - Integral pressure reduction valve - Google Patents
Integral pressure reduction valve Download PDFInfo
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- CN102278503A CN102278503A CN2011101624827A CN201110162482A CN102278503A CN 102278503 A CN102278503 A CN 102278503A CN 2011101624827 A CN2011101624827 A CN 2011101624827A CN 201110162482 A CN201110162482 A CN 201110162482A CN 102278503 A CN102278503 A CN 102278503A
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- valve rod
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Abstract
The invention discloses an integral pressure reduction valve which comprises a valve body, wherein the valve body is provided with a horizontal water entry and a water discharging channel; a ball valve is installed on the water entry; a vertical water flow control channel used for communicating the water entry with the water discharging channel is also installed on the valve body; the upper part of the water flow control channel is provided with an upper valve deck, and the lower part of the water flow control channel is provided with a lower valve deck; a filter screen is installed between the lower part of the water flow control channel and the water discharging channel; a valve core mechanism containing a valve rod is installed on the water flow control channel; the upper part of the valve rod is of a piston type structure; the lower part of the valve rod is provided with a valve clack and a sealing gasket of the valve clack; the valve rod is installed in the water flow control channel in a way of moving up and down; the upper part of the valve rod is matched with the upper part of the water flow control channel to form a control air chamber; the control air chamber and the water discharging channel are connected with through holes; the upper valve deck is provided with an adjusting screw rod and a spring seat; a spring installed between the upper end of the spring seat and the upper end of the valve rod; the upper valve deck is provided with a through hole communicated with the atmosphere; and the valve has the advantages of high reliability, good maintenance performance and high pressure control accuracy of the water discharging channel.
Description
Technical field
The present invention relates to valve technology field, especially a kind of outlet pressure that makes valve is lower than the fluid pressure valve of inlet pressure.
Background technique
Reduction valve is a kind of special arrangement of automatic reduction working pressure of pipeline, it can be reduced to pipeline higher hydraulic pressure before the valve the required level of pipeline behind the valve, reduction valve is widely used in tall building, too high zone, mine and other occasions of city water-supply pipe network hydraulic pressure, and each obtains suitable service hydraulic pressure and flow with water spot in the water system to ensure to; Existing reduction valve as on May 23rd, 2007 open Chinese patent application number be 200510061618.X a kind of " water pressure reducing valve ", it is provided with water intake, water outlet, valve rod, spring, spring seat, pressure regulating cover, screw press and filter screen etc., it can realize the pressure that the pressure of water outlet is lower than the pressure of water intake and can adjusts the mouth of a river, but filter screen is located at inlet end, be between pressure regulating cover and the current control mouth, dismantle not easy cleaning difficulty, inlet end is not provided with valve, the user can bring inconvenience when safeguarding reduction valve, the structure of its valve rod is simpler in addition, water outlet is not established the pressure monitoring passage yet, and control accuracy is relatively poor.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of integral type reduction valve, the reliability height, and maintainability is good, exhalant canal pressure controling precision height.
For achieving the above object, technological scheme of the present invention is: a kind of integral type reduction valve, comprise valve body, valve body comprises horizontal intake tunnel and exhalant canal, intake tunnel is provided with ball valve, the vertical current control channel that also is provided with on the valve body, current control mouthful a connection intake tunnel and an exhalant canal are arranged in the middle of the current control channel, bonnet is equipped with on vertical current control channel top, bottom flange is equipped with in the bottom, be provided with filter screen between current control mouth and the exhalant canal, filter screen is in the upper end of bottom flange, spool mechanism is housed on the current control channel, described spool mechanism comprises valve rod, the top of valve rod is piston cylinder operator, flap and flap sealing gasket are equipped with in the bottom of valve rod, valve rod with up and down movably mode be contained in the vertical current control channel, the flap sealing gasket can be blocked current control mouth when valve rod moved up, can make when valve rod moves down and be communicated with intake tunnel and exhalant canal current control mouthful aperture increasing, the top of valve rod cooperates moving up and down of formation one control air chamber control valve rod with the top of current control channel, control air chamber and exhalant canal have connecting through hole, adjusting screw rod is housed on the bonnet, adjusting screw rod is provided with spring seat, be provided with spring between spring seat and the valve rod upper end, also be provided with the through hole that is communicated with atmosphere on the bonnet.
Preferred described ball valve closes the magnetic lock ball valve for anti-, comprises the magnetic lock that the spherical valve core that is arranged on the intake tunnel and control spherical valve core rotate, make reduction valve safeguard and the cleaning of filter screen conveniently, can prevent that also the stranger from arbitrarily opening, cause the water source to open circuit.
Further, be provided with at described exhalant canal and be communicated with manometric passage, but make setting pressure table on the valve body accurately control the pressure of exhalant canal.
Further, be equipped with one on the described vertical current control channel and cross fluid, crossing the upper end of fluid is pushed down by bonnet, be provided with up big and down small stepped shaft cylindrical hole in the middle of crossing fluid, the top of valve rod was contained on the great circle cylindricality through hole of fluid top, be provided with the O RunddichtringO between the top of valve rod and the mistake fluid top great circle cylindricality through hole, also be provided with the O RunddichtringO between the middle and upper part of valve rod and the mistake fluid middle part small cylindrical through hole, two O RunddichtringOs and valve rods and cross the space that fluid surrounds and form the control air chamber, the connecting through hole of control air chamber and exhalant canal was located on the fluid, make the manufacturing of valve body be more prone to, reduce cost.
Beneficial effect of the present invention is as follows:
1, piston cylinder operator is adopted on the top of valve rod, be equipped with on the valve stem piston formula structure O RunddichtringO make the no jam of moving up and down of valve rod, travelling performance is reliable, durable in use, sealing is reliable, also just improves the reliability of whole reduction valve use.
2, the intake tunnel of valve body is provided with ball valve, can cut off the water source of intake tunnel when safeguarding reduction valve and cleaning and filtering net, so maintenance work is very convenient.
3, filter screen is located at the upper end that current are controlled between mouth and the exhalant canal and are in bottom flange, and the dismounting bottom flange just can be taken out filter screen, and it is just very convenient therefore to change filter screen or cleaning and filtering net.
4, the control that valve rod is moved up and down not only compresses by adjusting screw rod and spring seat or pull-off spring changes the active force on valve rod top, also cooperate with the top of current control channel and form moving up and down of a control air chamber control valve rod on the top of valve rod, make that the aperture control of current control mouth is more accurate, the discharge pressure control of exhalant canal is more accurate.
5, exhalant canal is provided with and is communicated with manometric passage, but the pressure of setting pressure table monitoring exhalant canal, again by rotating the pressure that adjusting screw rod just can more accurately adjust water channel.
Description of drawings
Fig. 1 is a sectional view of the present invention;
Fig. 2 is that the pressure representative intention is equipped with in the present invention.
Embodiment
Below in conjunction with accompanying drawing and concrete mode of execution the present invention is described in further detail.
Shown in Figure 1, a kind of integral type reduction valve, comprise valve body 1, valve body 1 is provided with horizontal intake tunnel 11 and exhalant canal 12, intake tunnel 11 is provided with ball valve 2, the vertical current control channel 13 that also is provided with on the valve body 1, a current control mouthful 131 connection intake tunnel 11 and exhalant canals 12 are arranged in the middle of the current control channel 13, bonnet 3 is equipped with on vertical current control channel 13 tops, bottom flange 4 is equipped with in the bottom, be provided with filter screen 5 between current control mouth 131 and the exhalant canal 12, filter screen 5 is in the upper end of bottom flange 4, spool mechanism 6 is housed on the current control channel 13, described spool mechanism 6 comprises valve rod 61, the top 611 of valve rod 61 is piston cylinder operator, flap 62 and flap sealing gasket 63 are equipped with in the bottom 612 of valve rod 61, valve rod 61 with up and down movably mode be contained in the vertical current control channel 13, flap sealing gasket 63 can be blocked current control mouth 131 when valve rod 61 moved up, can make when valve rod 61 moves down and be communicated with intake tunnel 11 and exhalant canal 12 current control mouthful 131 apertures increasing, the top of valve rod 61 forms moving up and down of control air chamber 64 control valve rods 61 with cooperating of current control channel 13, control air chamber 64 has connecting through hole 65 with exhalant canal 12, adjusting screw rod 31 is housed on the bonnet 3, adjusting screw rod 31 is provided with spring seat 311, be provided with spring 7 between spring seat 311 and valve rod 61 upper ends, also be provided with the through hole 32 that is communicated with atmosphere on the bonnet 3.
Described ball valve 2 closes the magnetic lock ball valve for anti-, comprises the spherical valve core 21 that is arranged on the intake tunnel 11 and controls the magnetic lock 22 that spherical valve core 21 rotates.
Described exhalant canal 12 also is provided with and is communicated with manometric passage 121, can block with plug 8 when not adorning pressure gauge.
On described vertical current control channel 13, can be equipped with one and cross fluid 132, crossing the upper end of fluid 132 is pushed down by bonnet 3, be provided with up big and down small stepped shaft cylindrical hole in the middle of crossing fluid 132, the top 611 of valve rod 61 was contained on the fluid 132 top great circle cylindricality through holes, be provided with O RunddichtringO 613 between the top 611 of valve rod 61 and the mistake fluid 132 top great circle cylindricality through holes, also be provided with O RunddichtringO 614 between the middle and upper part of valve rod 61 and the mistake fluid 132 middle part small cylindrical through holes, two O RunddichtringOs 613,614 and valve rod 61 and cross the space that fluid 132 surrounds and form control air chamber 64, control air chamber 64 was located on the fluid 132 with the connecting through hole 65 of exhalant canal 12.
Fig. 2 is equipped with manometric schematic representation on the valve body 1, the inductive probe of pressure gauge 9 is connected by passage 121 and exhalant canal 12.
Working principle of the present invention is that throttling action that the aperture size by controlled water flow control mouthfuls 131 forms makes the pressure of the pressure of intake tunnel and exhalant canal certain pressure reduction occur to realize reducing pressure, when the exhalant canal 12 of valve body 1 does not have pressure, valve rod 6 is shifted to bottom under the effect of spring 7, the aperture maximum of current control this moment mouth 131, when the pressure of exhalant canal 12 raises, the pressure of exhalant canal will pass to the lower end of control air chamber 64 and valve rod 61 by the control air chamber 64 and the connecting through hole 65 of exhalant canal 12, thereby promote to move on the valve rod 61, make the aperture of current control mouth 131 reduce the throttling action increasing, reach new pressure balance, when exhalant canal 12 was closed, the pressure of exhalant canal can continue to strengthen and will promote valve rod 61 and move on continuing and block current control mouthfuls 131 up to flap sealing gasket 63 and close reduction valve.
Rotation adjusting screw rod 31 can make spring 7 compress and loosen the active force of regulating valve stem 61 upper ends, influences the aperture of current control mouth 131, thereby can adjust the discharge pressure size of water channel 12, can accomplish more accurate adjustment by the monitoring of pressure gauge 9.
Below only be a preferred embodiment of the present invention, the change that those skilled in the art does to be equal to by claim all falls into the protection domain of this case.
Claims (4)
1. integral type reduction valve, comprise valve body, valve body is provided with horizontal intake tunnel and exhalant canal, it is characterized in that: intake tunnel is provided with ball valve, the vertical current control channel that also is provided with on the valve body, current control mouthful a connection intake tunnel and an exhalant canal are arranged in the middle of the current control channel, bonnet is equipped with on vertical current control channel top, bottom flange is equipped with in the bottom, be provided with filter screen between current control mouth and the exhalant canal, filter screen is in the upper end of bottom flange, spool mechanism is housed on the current control channel, described spool mechanism comprises valve rod, the top of valve rod is piston cylinder operator, flap and flap sealing gasket are equipped with in the bottom of valve rod, valve rod with up and down movably mode be contained in the vertical current control channel, the flap sealing gasket can be blocked current control mouth when valve rod moved up, can make when valve rod moves down and be communicated with intake tunnel and exhalant canal current control mouthful aperture increasing, the top of valve rod cooperates moving up and down of formation one control air chamber control valve rod with the top of current control channel, control air chamber and exhalant canal have connecting through hole, adjusting screw rod is housed on the bonnet, adjusting screw rod is provided with spring seat, be provided with spring between spring seat and the valve rod upper end, also be provided with the through hole that is communicated with atmosphere on the bonnet.
2. integral type reduction valve according to claim 1 is characterized in that: described ball valve closes the magnetic lock ball valve for anti-, comprises the spherical valve core that is arranged on the intake tunnel and controls the magnetic lock that spherical valve core rotates.
3. integral type reduction valve according to claim 1 is characterized in that: described exhalant canal also is provided with and is communicated with manometric passage.
4. according to each described integral type reduction valve of claim 1 to 3, it is characterized in that: be equipped with one on the described vertical current control channel and cross fluid, crossing the upper end of fluid is pushed down by bonnet, be provided with up big and down small stepped shaft cylindrical hole in the middle of crossing fluid, the top of valve rod was contained on the great circle cylindricality through hole of fluid top, be provided with the O RunddichtringO between the top of valve rod and the mistake fluid top great circle cylindricality through hole, also be provided with the O RunddichtringO between the middle and upper part of valve rod and the mistake fluid middle part small cylindrical through hole, two O RunddichtringOs and valve rods and cross the space that fluid surrounds and form the control air chamber, the connecting through hole of control air chamber and exhalant canal was located on the fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101624827A CN102278503A (en) | 2011-06-16 | 2011-06-16 | Integral pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101624827A CN102278503A (en) | 2011-06-16 | 2011-06-16 | Integral pressure reduction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102278503A true CN102278503A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101624827A Pending CN102278503A (en) | 2011-06-16 | 2011-06-16 | Integral pressure reduction valve |
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| CN (1) | CN102278503A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563154A (en) * | 2011-12-27 | 2012-07-11 | 上海空间推进研究所 | High-flow pressure loading type decompression valve |
| CN103542148A (en) * | 2013-10-12 | 2014-01-29 | 浙江盾安阀门有限公司 | Reducing valve with filtering and backflow preventing functions |
| CN104006196A (en) * | 2014-06-05 | 2014-08-27 | 张家港富瑞特种装备股份有限公司 | Overcurrent protection mechanism for ball valves |
| CN104006194A (en) * | 2014-06-05 | 2014-08-27 | 宁波永享铜管道有限公司 | Reducing valve |
| CN104246643A (en) * | 2012-03-06 | 2014-12-24 | 费尔查德工业产品公司 | Systems and methods for a three chamber compensation network |
| CN108278397A (en) * | 2018-03-07 | 2018-07-13 | 高继升 | A kind of bottom flange Split type electrical flow valve setting flow |
| CN116538330A (en) * | 2023-07-07 | 2023-08-04 | 江苏深蓝航天有限公司 | Pressure reducing valve with multiple sensitive pistons |
| CN116557601A (en) * | 2023-07-11 | 2023-08-08 | 江苏深蓝航天有限公司 | Pressure reducing valve of multi-sensitive piston multi-resetting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129974A (en) * | 1993-08-23 | 1996-08-28 | 株式会社横田制作所 | Variable constant flow rate adjusting lift valve device |
| CN2426052Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type pressure-reducing valve |
| CN2608790Y (en) * | 2003-03-25 | 2004-03-31 | 浙江大众阀门厂 | Pressure-reducing valve |
| CN201190823Y (en) * | 2008-03-14 | 2009-02-04 | 孔军波 | Pressure reducing valve with improved structure |
| CN201225431Y (en) * | 2008-07-17 | 2009-04-22 | 上海欧特莱阀门机械有限公司 | Adjustable pressure relief valve |
| CN201561169U (en) * | 2009-07-24 | 2010-08-25 | 张金雁 | Double-centering type gas pressure regulator |
| CN202132567U (en) * | 2011-06-16 | 2012-02-01 | 陈建华 | Integrated reducing valve |
-
2011
- 2011-06-16 CN CN2011101624827A patent/CN102278503A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129974A (en) * | 1993-08-23 | 1996-08-28 | 株式会社横田制作所 | Variable constant flow rate adjusting lift valve device |
| CN2426052Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type pressure-reducing valve |
| CN2608790Y (en) * | 2003-03-25 | 2004-03-31 | 浙江大众阀门厂 | Pressure-reducing valve |
| CN201190823Y (en) * | 2008-03-14 | 2009-02-04 | 孔军波 | Pressure reducing valve with improved structure |
| CN201225431Y (en) * | 2008-07-17 | 2009-04-22 | 上海欧特莱阀门机械有限公司 | Adjustable pressure relief valve |
| CN201561169U (en) * | 2009-07-24 | 2010-08-25 | 张金雁 | Double-centering type gas pressure regulator |
| CN202132567U (en) * | 2011-06-16 | 2012-02-01 | 陈建华 | Integrated reducing valve |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563154A (en) * | 2011-12-27 | 2012-07-11 | 上海空间推进研究所 | High-flow pressure loading type decompression valve |
| CN102563154B (en) * | 2011-12-27 | 2016-04-20 | 上海空间推进研究所 | A kind of large discharge pressure-loaded formula reduction valve |
| CN104246643A (en) * | 2012-03-06 | 2014-12-24 | 费尔查德工业产品公司 | Systems and methods for a three chamber compensation network |
| CN103542148A (en) * | 2013-10-12 | 2014-01-29 | 浙江盾安阀门有限公司 | Reducing valve with filtering and backflow preventing functions |
| CN103542148B (en) * | 2013-10-12 | 2015-12-02 | 浙江盾安阀门有限公司 | A kind of reduction valve with filtration, anti-back flow function |
| CN104006196A (en) * | 2014-06-05 | 2014-08-27 | 张家港富瑞特种装备股份有限公司 | Overcurrent protection mechanism for ball valves |
| CN104006194A (en) * | 2014-06-05 | 2014-08-27 | 宁波永享铜管道有限公司 | Reducing valve |
| CN108278397A (en) * | 2018-03-07 | 2018-07-13 | 高继升 | A kind of bottom flange Split type electrical flow valve setting flow |
| CN116538330A (en) * | 2023-07-07 | 2023-08-04 | 江苏深蓝航天有限公司 | Pressure reducing valve with multiple sensitive pistons |
| CN116538330B (en) * | 2023-07-07 | 2023-10-27 | 江苏深蓝航天有限公司 | Pressure reducing valve with multiple sensitive pistons |
| CN116557601A (en) * | 2023-07-11 | 2023-08-08 | 江苏深蓝航天有限公司 | Pressure reducing valve of multi-sensitive piston multi-resetting device |
| CN116557601B (en) * | 2023-07-11 | 2023-10-27 | 江苏深蓝航天有限公司 | Pressure reducing valve of multi-sensitive piston multi-resetting device |
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Application publication date: 20111214 |