CN202284664U - Stop type pressure stabilizing check valve - Google Patents
Stop type pressure stabilizing check valve Download PDFInfo
- Publication number
- CN202284664U CN202284664U CN2011204344147U CN201120434414U CN202284664U CN 202284664 U CN202284664 U CN 202284664U CN 2011204344147 U CN2011204344147 U CN 2011204344147U CN 201120434414 U CN201120434414 U CN 201120434414U CN 202284664 U CN202284664 U CN 202284664U
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- China
- Prior art keywords
- valve
- flap
- pressure
- valve body
- guide sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to a stop type pressure stabilizing check valve, which includes a valve body, a valve clack, a valve rod and a valve cover. A cylindrical guide sleeve is arranged in a valve cavity at a valve seat outlet side, the outer peripheral surface of the valve clack is movably matched with the inner wall of the guide sleeve, and a plurality of through holes are made on the cylinder of the guide sleeve and used for communicating a valve body inlet channel with a valve body outlet channel, as well as the valve outlet channel with a spring cavity. The stop type pressure stabilizing check valve is mainly characterized in that the center of the back surface of the valve clack is floatingly connected with the lower end surface of the valve rod, the upper end of the valve rod is connected with a transmission device, a first pressure sensor is arranged in the valve body inlet channel, a second pressure sensor is arranged in the outlet channel, signal terminals of the first pressure sensor and the second pressure sensor are connected with a controller, and switch signals of the controller are connected in a power supply control circuit of the transmission device. The two pressure sensors are used for detecting pressure signals, the valve is controlled to be opened or closed through the controller, the pressure at a valve outlet is stabilized, and the stop type pressure stabilizing check valve has the dual functions of a stop valve and a pressure stabilizing check valve, and has the advantages of high pressure stabilizing precision and so on. The stop type pressure stabilizing check valve is suitable for a control valve for a medium pipeline with the high system pressure stabilization requirement.
Description
Technical field
The utility model relates to valve field, particularly about a voltage stabilizing safety check.The utility model is applicable to and prevents on the voltage-stabilizing system pipeline that medium from flowing backwards, the control valve of stable system pressure.
Background technique
The voltage stabilizing safety check is used for stablizing the valve outlet pressure and stablizes, prevents to export medium refluence, the effect of protective system device security in pipe-line system.Like the patent No. is the piston type voltage stabilizing safety check of ZL200820163902.7, comprises valve body, valve seat, valve gap, piston, piston cylinder and Sealing and assembling set, and piston is shaped on the sealing surface that cooperatively interacts with valve seat.Be shaped on one-way valve and equalizing orifice on the piston, the import of one-way valve is communicated with piston cavity, and outlet is communicated with the outlet passage of safety check; Equalizing orifice is communicated with the outlet passage of piston cavity and safety check.Through one-way valve and equalizing orifice regulating piston cavity pressure, control piston opens and closes and aperture automatically by pressure medium, prevents the medium refluence and keeps the pressure stability of valve export system.Its shortcoming is that the precision of voltage regulation is low, and throttle down initiatively, and the stop valve that need on pipeline, be installed in series just can realize initiatively cutting off the control function of pipeline, and that system installs is complicated, improve system equipment cost height.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to existing technology, a kind of precision of voltage regulation height is provided, can initiatively cuts off pipeline, and the cut-off type voltage stabilizing safety check of system equipment cost is installed simply, reduced in system.
The technological scheme of the utility model comprises valve body, flap, valve rod, valve gap, is shaped on valve seat between valve body inlet passage and the outlet passage, and the flap lower plane is shaped on the sealing surface that cooperates with valve seat, is provided with the pressure setting spring on the flap between plane and the valve gap; In valve seat outlet side valve pocket, be provided with the cylindrical shape guide sleeve, the flap outer peripheral surface cooperates with the guide sleeve inwall is movable, forms spring chamber between guide sleeve, flap, the valve gap three; Be shaped on some through holes on the cylinder of guide sleeve, be communicated with valve body inlet/outlet passage and valve outlet passage and spring chamber; Mainly be that center, the flap back side is connected with the valve rod lower end surface is unsteady; The valve rod upper end is connected with transmission device; In the valve body inlet passage, be provided with first pressure transducer; Be provided with second pressure transducer in the outlet passage, the pressure signal end of said first pressure transducer and second pressure transducer is connected with controller, and the switching signal end of controller is connected in the power control circuit of transmission device.
In above technological scheme, center, the flap back side is shaped on cylindrical shrinkage pool, and this cylindrical shrinkage pool cooperates with the valve rod lower end is movable.
In above technological scheme, flap back side outward edge connects a guide cylinder, and the inwall of this guide cylinder outer cylinder and guide sleeve is shaped on the through hole together with spring chamber and valve outlet passage movingly on the guide cylinder.
One of advantage of the utility model is: in valve body inlet/outlet passage, be provided with first pressure transducer and second pressure transducer respectively; When pressure medium in the outlet passage surpassed setting pressure, the signal of second pressure transducer was closed flap through controller control transmission device transmission valve rod, otherwise; Controller control transmission device transmission valve rod rises; Medium promotes to open flap, makes outlet channel media pressure equal setting pressure, and the precision of voltage regulation is high; When pressure medium in the outlet passage during greater than inlet passage pressure; The pressure signal of first pressure transducer and second pressure transducer through controller relatively after; Control transmission device transmission valve rod is closed flap, and simultaneously, the outlet pressure medium promotes the flap quick closedown; Prevent that medium from flowing backwards, close rapid, reliable.
Two of the advantage of the utility model is: cut off the medium circulation when system needs throttle down, can flap and valve base sealing be closed through transmission device transmission valve rod, do not need to adorn in addition cut-off valve, simplified system erection unit, reduction system equipment cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Cut-off type voltage stabilizing safety check as shown in Figure 1; Valve body 1, flap 4, valve rod 6, valve gap 8 are shaped on valve seat between valve body 1 inlet passage and the outlet passage, and flap 4 lower planes are shaped on the sealing surface that cooperates with valve seat; Be provided with pressure setting spring 7 between plane and the valve gap 8 on the flap 4; In valve seat outlet side valve pocket, be provided with cylindrical shape guide sleeve 5, these guide sleeve 5 lower end surfaces are fixedly mounted on the valve body 1 of valve seat periphery, and the upper-end surface is fitted in valve gap 8 times.Flap 4 outer peripheral surfaces cooperate with guide sleeve 5 inwalls are movable, form spring chamber between guide sleeve 5, flap 4, valve gap 8 threes.Be shaped on some through holes on the cylinder of guide sleeve 5; Be communicated with valve body 1 inlet/outlet passage and valve body 1 outlet passage and spring chamber; Medium can flow to valve body 1 outlet passage through the through hole of guide sleeve 5 by valve body 1 inlet passage when flap 4 was opened, and when valve body 1 outlet passage pressure surpassed its inlet passage pressure, the outlet passage medium got into the spring chamber at flap 4 back sides through the through hole of guide sleeve 5; Promote flap 4 and close, prevent that medium from flowing backwards.Float with valve rod 6 lower end surfaces and be connected in center, flap 4 back side, promptly valve rod 6 lower end surfaces are actively set in the cylindrical shrinkage pool at center, flap 4 back side, and when making valve body 1 outlet pressure greater than its inlet pressure, flap 4 does not receive pining down of valve rod 6 and closes automatically.Flap 4 back side outward edges connect a guide cylinder, and the inwall of this guide cylinder outer cylinder and guide sleeve 5 is shaped on the through hole together with spring chamber and valve body 1 outlet passage movingly on the guide cylinder.Valve rod 6 upper ends are connected with transmission device 10; In valve body 1 inlet passage, be provided with first pressure transducer 3; Be provided with second pressure transducer 2 in the outlet passage; The pressure signal end of said first pressure transducer 3 and second pressure transducer 2 is connected with controller 9 signal input parts, and the switching signal end of controller 9 is connected in the power control circuit of transmission device 10.When pressure medium in valve body 1 outlet passage surpassed setting pressure, the signal of second pressure transducer 2 was closed flap 4 through controller 9 control transmission devices 10 transmission valve rods 6, reduces flap 4 apertures; Outlet pressure is descended; And when valve body 1 outlet passage pressure was lower than setting pressure, the signal of second pressure transducer 2 rose through controller 9 control transmission devices 10 transmission valve rods 6, and medium promotes to open flap 4; Outlet pressure is risen, keep the outlet passage pressure medium to equal setting pressure.When second pressure transducer, 2 detected pressure signals during greater than first pressure transducer, 3 detected pressure signals; Controller 9 will be controlled transmission device 10 transmission valve rods 6 and close flap 4; Simultaneously; The outlet pressure medium gets into flap 4 through the through hole of guide sleeve 5 and guide cylinder, promotes flap 4 and closes, and prevents that medium from flowing backwards.Transmission device 10 adopts YE to add manual operating device, can be through electronic or manual active throttle down.Dual functions with safety check and stop valve.Controller 9 can adopt various known technologies to reach needed control function, no longer is described in detail at this.
Claims (3)
1. cut-off type voltage stabilizing safety check; Comprise valve body (1), flap (4), valve rod (6), valve gap (8), be shaped on valve seat between valve body (1) inlet passage and the outlet passage, flap (4) lower plane is shaped on the sealing surface that cooperates with valve seat; Flap (4) is gone up between plane and the valve gap (8) and is provided with pressure setting spring (7); In valve seat outlet side valve pocket, be provided with cylindrical shape guide sleeve (5), flap (4) outer peripheral surface cooperates with guide sleeve (5) inwall is movable, forms spring chamber between guide sleeve (5), flap (4), valve gap (8) three; Be shaped on some through holes on the cylinder of guide sleeve (5); This through hole is communicated with valve body (1) inlet/outlet passage and valve body (1) outlet passage and spring chamber, it is characterized in that floating with valve rod (6) lower end surface in flap (4) center, the back side to be connected, and is connected with transmission device (10) on the valve rod (6); In valve body (1) inlet passage, be provided with first pressure transducer (3); Be provided with second pressure transducer (2) in the outlet passage, the pressure signal end of said first pressure transducer (3) and second pressure transducer (2) is connected with controller (9), and the switching signal end of controller (9) is connected in the power control circuit of transmission device (10).
2. cut-off type voltage stabilizing safety check according to claim 1 is characterized in that flap (4) center, the back side is shaped on cylindrical shrinkage pool, and this cylindrical shrinkage pool cooperates with valve rod (6) lower end is movable.
3. cut-off type voltage stabilizing safety check according to claim 1 and 2; It is characterized in that flap (4) back side outward edge connects a guide cylinder; The inwall of this guide cylinder outer cylinder and guide sleeve (5) is shaped on the through hole together with spring chamber and valve body (1) outlet passage movingly on the guide cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204344147U CN202284664U (en) | 2011-11-01 | 2011-11-01 | Stop type pressure stabilizing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204344147U CN202284664U (en) | 2011-11-01 | 2011-11-01 | Stop type pressure stabilizing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284664U true CN202284664U (en) | 2012-06-27 |
Family
ID=46296186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204344147U Expired - Fee Related CN202284664U (en) | 2011-11-01 | 2011-11-01 | Stop type pressure stabilizing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284664U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374325A (en) * | 2011-11-01 | 2012-03-14 | 良精集团有限公司 | Intelligent pressure-stabilizing stop-check valve |
| CN104976392A (en) * | 2015-06-04 | 2015-10-14 | 许炎章 | Right-angled type stop check valve for industrial refrigeration |
| CN106090268A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of control valve automatic control system |
| CN106286866A (en) * | 2016-08-23 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of high-performance control valve |
-
2011
- 2011-11-01 CN CN2011204344147U patent/CN202284664U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374325A (en) * | 2011-11-01 | 2012-03-14 | 良精集团有限公司 | Intelligent pressure-stabilizing stop-check valve |
| CN104976392A (en) * | 2015-06-04 | 2015-10-14 | 许炎章 | Right-angled type stop check valve for industrial refrigeration |
| CN106090268A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of control valve automatic control system |
| CN106286866A (en) * | 2016-08-23 | 2017-01-04 | 成都欧浦特控制阀门有限公司 | A kind of high-performance control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20121101 |