CN201610944U - Elevating type micro-damp slow closed check valve - Google Patents
Elevating type micro-damp slow closed check valve Download PDFInfo
- Publication number
- CN201610944U CN201610944U CN2010201441070U CN201020144107U CN201610944U CN 201610944 U CN201610944 U CN 201610944U CN 2010201441070 U CN2010201441070 U CN 2010201441070U CN 201020144107 U CN201020144107 U CN 201020144107U CN 201610944 U CN201610944 U CN 201610944U
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Abstract
An elevating type micro-damp slow closed check valve has a valve body, an inlet and an outlet with axial lines on the same one horizontal line are provided at two sides of the valve body, a horizontal valve cap is provided at the upper side of the valve body, a circular horizontal valve base is provided at one side facing to the outlet in the valve body, a valve flap capable of elevating and sliding along the axial line of the circular horizontal is provided above the valve base, a cylinder with the axial line on the same one straight line as the axial line of the circular horizontal valve base is provided below the valve cap, a piston with the axial line on the same one straight line as the axial line of the cylinder is provided on the valve flap, a medium inlet and outlet communicated with the cylinder is provided on the valve cap, the medium inlet and outlet is connected with a regulation valve. During the fluid flows in the positive direction, when the valve flap descends, the utility model reduces the influence on the medium by the valve flap gravity force because of damping action generated by the cylinder connected with the regulation valve, thereby reducing the flow damp coefficient; when the fluid flows in the reverse direction, the valve flap slowly descends to enter into the valve base because of the damping action generated by the cylinder connected with the regulation valve, thereby eliminating the water hammer phenomenon generated by the rapid descending of the valve flap to enter into the valve base.
Description
Technical field
The utility model relates to the damped cylinder of a kind of Lift check valve, particularly a kind of Lift check valve.
Background technique
Safety check is called check valve or one-way valve again, and safety check is the power that fluid flow to produce in the tube road and the valve that opens and closes automatically.On in more small-bore pipe, usually use Lift check valve, in the prior art, the structure of Lift check valve is general similar to stop valve, Lift check valve has valve body, and there is import and the outlet of axis on same horizontal line the both sides of valve body, and the upside of valve body has the valve gap of level, towards outlet one side circular horizontal valve seat is arranged in the valve body, the valve seat top, the flap that can slide along the axis lifting of circular horizontal valve seat is arranged.During use, Lift check valve is installed on the horizontal pipeline, during the fluid forward flow, fluid flows into from the inlet of valve body, the moving flap of trying hard to recommend that produces because of fluid is mobile upwards slides off valve seat, Lift check valve is opened, when the fluid forward flow, the power that the flap of Lift check valve produces because of fluid flows can remain on the top of valve seat always and open, when reverse fluid flow, flap is fallen on the valve seat to lower slider fast because of self gravity and the power that produces of reverse fluid flow, and Lift check valve is closed.This Lift check valve has following deficiency:
1. when the fluid forward flow, the flap of Lift check valve is the opening state that slides off valve seat maintenance Lift check valve on the trend flap of trying hard to recommend that flows and produce because of fluid, this moment, fluid overcame the gravity of flap self to the thrust of flap, so flow resistance coefficient is bigger;
2. when reverse fluid flow, the flap of Lift check valve is fallen on the valve seat to lower slider fast because of self gravity and the power that produces of reverse fluid flow, make the Lift check valve quick closedown, when the Lift check valve quick closedown, flow rate of fluid reduces to zero rapidly from the refluence speed of maximum in the pipeline, the kinetic energy of fluid changes into static energy rapidly, makes that the static pressure of fluid raises rapidly in the pipeline, and generation may have the water hammer of destruction to pipe-line system.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, can eliminate the rise-fall type Tiny Drag Slow Shut Check Valves of water hammer when proposing a kind of forward flow during less, the reverse flow of flow resistance coefficient.
The utility model is realized with the following method.
The rise-fall type Tiny Drag Slow Shut Check Valves has valve body, there is import and the outlet of axis on same horizontal line the both sides of valve body, the upside of valve body has the valve gap of level, towards outlet one side circular horizontal valve seat is arranged in the valve body, valve seat top, the flap that can slide along the axis lifting of circular horizontal valve seat is arranged, valve body is interior, there is the cylinder body of axis on same straight line of axis and circular horizontal valve seat the below of valve gap, the piston of axis on same straight line that axis and cylinder body are arranged on the flap, have the medium that communicates with cylinder body to import and export on the valve gap, medium is connected with modulating valve on importing and exporting.
During use, the utility model is installed on the deferent of level, suitably opens the aperture of modulating valve, allow inner chamber of cylinder block communicate with atmosphere, during the fluid forward flow, fluid flows into from the inlet of valve body, and the moving flap of trying hard to recommend that produces because of fluid is mobile upwards slides off valve seat, when flap upwards slides, the piston that links to each other with flap also moves upward in cylinder body, the air of discharging inner chamber of cylinder block rises flap, because of the upper and lower pressure reduction of piston produces thrust upwards to flap, makes flow resistance coefficient less; During reverse fluid flow, fluid flows into from the outlet of valve body, the moving flap of trying hard to recommend that produces because of reverse fluid flow slips into valve seat downwards, flap is when lower slider, and the piston that links to each other with flap also moves downward in cylinder body, because cylinder body is to communicate with atmosphere by modulating valve, make flap be subjected to damping force to lower slider, suitably open the aperture of modulating valve, can make flap slip into valve seat lentamente downwards, eliminate the water hammer that produces because of the valve quick closedown.
The utility model in valve body, valve gap below the cylinder body of axis on same straight line of axis and circular horizontal valve seat arranged, the piston of axis on same straight line that axis and cylinder body are arranged on the flap, the air inlet/outlet that communicates with cylinder body is arranged on the valve gap, be connected with modulating valve on the air inlet/outlet, during the fluid forward flow, flap rises lifts off a seat, flap can be subjected to being connected with the damping function that the cylinder body of modulating valve produces and reduce flap gravity to medium influence when descending, flap is reduced resistance of medium, reduce flow resistance coefficient; During the fluid reverse flow, flap descends damping function that the cylinder body also be subjected to being connected with modulating valve produces and slowly descends and enter valve seat, eliminates because of flap descends fast and enters the water hammer that valve seat produces.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic according to a kind of rise-fall type Tiny Drag Slow Shut Check Valves of invention scheme proposition of the present utility model;
Fig. 2 is the main cross-sectional schematic of the rise-fall type Tiny Drag Slow Shut Check Valves that communicates with body cavity of modulating valve.
Embodiment
Among Fig. 1, the rise-fall type Tiny Drag Slow Shut Check Valves has valve body 1, there are the import of axis on same horizontal line and outlet 2 in the both sides of valve body, 3, the upside of valve body has the valve gap 4 of level, towards outlet one side circular horizontal valve seat 5 is arranged in the valve body, the valve seat top, the flap 7 that can slide along axis 6 liftings of circular horizontal valve seat is arranged, in the valve body, there is the cylinder body 8 of axis on same straight line of axis and circular horizontal valve seat the below of valve gap, the piston 9 of axis on same straight line that axis and cylinder body are arranged on the flap, the air inlet/outlet 10 that communicates with cylinder body is arranged on the valve gap, be connected with modulating valve 11 on the air inlet/outlet.
The modulating valve outlet of above-mentioned rise-fall type Tiny Drag Slow Shut Check Valves is to communicate with atmosphere, can be outside the modulating valve discharge conduit with flowing medium in the pipeline when cylinder piston is revealed.In order to prevent the flowing medium discharge, between modulating valve outlet and valve body, connecting tube can be arranged.
Among Fig. 2, on the valve body 13 of rise-fall type Tiny Drag Slow Shut Check Valves 12 through hole 14 is arranged, be connected with connecting tube 17 between modulating valve 15 outlets 16 and the through hole.
Claims (2)
1. rise-fall type Tiny Drag Slow Shut Check Valves, valve body is arranged, there is import and the outlet of axis on same horizontal line the both sides of valve body, the upside of valve body has the valve gap of level, towards outlet one side circular horizontal valve seat is arranged in the valve body, the valve seat top, the flap that can slide along the axis lifting of circular horizontal valve seat is arranged, it is characterized in that: in the valve body, there is the cylinder body of axis on same straight line of axis and circular horizontal valve seat the below of valve gap, the piston of axis on same straight line that axis and cylinder body are arranged on the flap, have the medium that communicates with cylinder body to import and export on the valve gap, medium is connected with modulating valve on importing and exporting.
2. by the described rise-fall type Tiny Drag Slow Shut Check Valves of claim 1, it is characterized in that: on the valve body of described rise-fall type Tiny Drag Slow Shut Check Valves through hole is arranged, be connected with connecting tube between modulating valve outlet and the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441070U CN201610944U (en) | 2010-03-30 | 2010-03-30 | Elevating type micro-damp slow closed check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441070U CN201610944U (en) | 2010-03-30 | 2010-03-30 | Elevating type micro-damp slow closed check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610944U true CN201610944U (en) | 2010-10-20 |
Family
ID=42961578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201441070U Expired - Fee Related CN201610944U (en) | 2010-03-30 | 2010-03-30 | Elevating type micro-damp slow closed check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610944U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675474A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Diesel engine lubricating oil way pumping oil and lubricating rapidly |
| CN104675475A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Lubricating oil circuit for quickly lubricating diesel engine and method for operating lubricating oil circuit |
| CN108760272A (en) * | 2018-06-19 | 2018-11-06 | 太原理工大学 | A kind of water-pump valve simulation experiment system and its simulation experiment method |
| CN110735800A (en) * | 2019-11-25 | 2020-01-31 | 扬州江天流量仪表有限公司 | novel micro-resistance slow-closing check valve and operation method thereof |
| CN111577607A (en) * | 2019-02-19 | 2020-08-25 | 上海海立电器有限公司 | Check valve and rotor compressor |
| CN112145760A (en) * | 2020-09-01 | 2020-12-29 | 济南德创试验仪器有限公司 | Check valve |
| CN113915382A (en) * | 2020-07-08 | 2022-01-11 | 克诺尔车辆设备(苏州)有限公司 | Improved check valve for rail transit vehicles and method of manufacture |
-
2010
- 2010-03-30 CN CN2010201441070U patent/CN201610944U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675474A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Diesel engine lubricating oil way pumping oil and lubricating rapidly |
| CN104675475A (en) * | 2012-06-29 | 2015-06-03 | 常州科普动力机械有限公司 | Lubricating oil circuit for quickly lubricating diesel engine and method for operating lubricating oil circuit |
| CN108760272A (en) * | 2018-06-19 | 2018-11-06 | 太原理工大学 | A kind of water-pump valve simulation experiment system and its simulation experiment method |
| CN111577607A (en) * | 2019-02-19 | 2020-08-25 | 上海海立电器有限公司 | Check valve and rotor compressor |
| CN110735800A (en) * | 2019-11-25 | 2020-01-31 | 扬州江天流量仪表有限公司 | novel micro-resistance slow-closing check valve and operation method thereof |
| CN113915382A (en) * | 2020-07-08 | 2022-01-11 | 克诺尔车辆设备(苏州)有限公司 | Improved check valve for rail transit vehicles and method of manufacture |
| CN112145760A (en) * | 2020-09-01 | 2020-12-29 | 济南德创试验仪器有限公司 | Check valve |
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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: 20101020 Termination date: 20160330 |