CN2421474Y - Self-operated flow controlling valve - Google Patents
Self-operated flow controlling valve Download PDFInfo
- Publication number
- CN2421474Y CN2421474Y CN 00226293 CN00226293U CN2421474Y CN 2421474 Y CN2421474 Y CN 2421474Y CN 00226293 CN00226293 CN 00226293 CN 00226293 U CN00226293 U CN 00226293U CN 2421474 Y CN2421474 Y CN 2421474Y
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- manually operated
- self
- automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000003993 interaction Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model relates to a self-operated flow control valve, which keeps constant hydraulic loss of the liquid which flows across a manual valve in a larger range through the interaction of the manual valve and an automatic valve which are arranged on the same axial line to realize a constant flow value which is corresponding to the manual valve in any degree of opening, when liquid flow is required to be cut off, the utility model directly controls the automatic valve to be closed through the manual valve. One valve plays the action of two valves. The utility model not only can control flow quantity but also can cut off and close the valve.
Description
The utility model relates to flow control valve, more specifically says so to belong to a kind of utilize manually operated valve and self-acting valve interaction, can regulate or control the self-operated flow control valve that fluid flows in a bigger range of flow.
In the prior art, the self-operated flow controller (valve) that the pipe network water equilibrium of forces adopts, its complex structure, volume is big, weight is big.And can not realize that convection cell effectively ends, on pipeline, except that self-operated flow controller (valve) is installed, a shutoff valve will be installed also, not only take effective space, also wave fund.
The purpose of this utility model provides a kind of control flow rate on demand can implement convection cell again effectively by simple in structure, the self-operated flow control valve that technology capability is good of effect.
This is to control its self-acting valve on same axis by the manually operated valve that is located at same valve body to realize: self-operated flow control valve is made up of valve body, valve gap, valve seat, manual opening stem, manual flap, automatic valve rod, automatic flap, diaphragm and spring.Two water outlets that two flaps are controlled intake pipe respectively are equipped with in the automatic valve rod upper end that it is characterized in that the manually operated valve be made up of valve rod, flap and same axis, the lower end is provided with diaphragm, diaphragm top communicates with valve pocket, bear the preceding fluid pressure of manually operated valve, the diaphragm bottom is provided with spring and is provided with and communicates with the liquid of manually operated valve back connecting tube, and the diaphragm bottom is born the fluid pressure of manually operated valve back and the thrust that spring makes progress simultaneously.
In the above-mentioned technical solution, the end face of valve seat can be held diaphragm below the diaphragm, and it is bad to prevent that diaphragm from being drawn.
This structure has guaranteed the fluid pressure difference invariable all the time (equaling spring thrust) of manually operated valve forward and backward (being that diaphragm is upper and lower), and effectively control flow rate can realize the purpose that convection cell effectively ends again.When if the forward and backward hydraulic pressure of manually operated valve equals spring thrust, the forward and backward pressure balance of diaphragm, self-acting valve remains static; If the forward and backward hydraulic pressure of manually operated valve is during greater than spring thrust, diaphragm will be with automatic valve rod, flap to move down, and the aperture of valve reduces, and reduce the pressure before the manually operated valve, till the forward and backward pressure balance of diaphragm; If the forward and backward fluid pressure differential of manually operated valve is during less than spring thrust, spring promotes diaphragm, valve rod, flap move up automatically, and the aperture of valve increases, and increases the pressure before the manually operated valve, till the forward and backward pressure balance of diaphragm.Because this structure guarantees that the forward and backward fluid pressure differential of manually operated valve is invariable, thereby realized that manually operated valve all has a fixing corresponding flow value (aperture steady flow in the hydraulics) under arbitrary aperture.When the needs control flow rate, manually operated valve is adjusted on the aperture of required flow correspondence, can reach purpose to flow control; When needs fully when fluid flows, by the rotation manual valve rod manually operated valve cuts out, the diaphragm upper pressure of self-acting valve increases (equaling intake pressure), and bottom pressure reduces, diaphragm will drive automatic valve rod and move down together with automatic flap, till valve is closed fully.
Some other characteristics of the present utility model will be illustrated further by following example narration.
Introduce the utility model embodiment below in conjunction with accompanying drawing.
Accompanying drawing is the axial sectional view of a kind of flow control valve of the utility model.
Being described as follows of each label among the figure:
1-valve gap, 2-manual opening stem, the manual flap of 3-, the automatic valve rod of 4-, the automatic flap of 5-, 6-connecting tube, 7-valve body, 8-valve pocket, 9-diaphragm, 10-spring, 11-valve seat, 12-water outlet, 13 valve seat end faces
Invariable according to the forward and backward fluid pressure differential of manually operated valve, need to demarcate the corresponding relation of manually operated valve aperture and flow value before all having the principle of a corresponding flow value, valve to dispatch from the factory under arbitrary aperture by flow test stand.
When needs are regulated control flow rate, rotation manual valve rod 2 makes on its aperture that is in required flow correspondence, can reach the purpose of stablizing control flow rate: if flow increases, fluid hydraulic loss by manually operated valve must increase, then the upper and lower hydraulic pressure of diaphragm 9 is greater than the thrust of spring 10, and diaphragm 9 will be with automatic valve rod 4, flap 5 to move down, and the aperture of automatic valve reduces, reduce the preceding pressure of manually operated valve, till diaphragm 9 upper and lower pressure balances; If flow reduces, fluid hydraulic loss by manually operated valve must reduce, when then the upper and lower fluid pressure differential of diaphragm 9 is less than the thrust of spring, spring 10 will promote diaphragm 9, valve rod 4, flap 5 move up automatically, the aperture of valve increases, pressure before the manually operated valve increases, till diaphragm 9 upper and lower pressure balances;
When the needs throttle down ended fluid, rotation manual valve rod 2 was closed valve, and diaphragm 9 upper and lower fluid pressure differential increase, and diaphragm 9 drives automatic valve rod 4 connection flaps 5 and moves down, till valve is closed fully.
Before valve was not closed fully, diaphragm 9 upper and lower fluid pressure differential reached maximum value, and diaphragm 9 will produce very big distortion, thereby valve seat end face 13 is held diaphragm 9 it is protected.
Claims (2)
1 one kinds of self-operated flow control valves are made up of valve body, valve gap, valve seat, manual opening stem, manual flap, automatic valve rod, automatic flap, diaphragm and spring.It is characterized in that the automatic valve rod upper end on the manually operated valve be made up of manual opening stem, flap and the same axis is equipped with two water outlets that two flaps are controlled intake pipe respectively, its lower end is provided with diaphragm, diaphragm top communicates with valve pocket, bear the fluid pressure of manually operated valve front, the diaphragm bottom is provided with spring and is provided with and communicates with the liquid of manually operated valve back connecting tube, bears the fluid pressure of manually operated valve back and the thrust that spring makes progress simultaneously.
2 self-operated flow control valves according to claim 1 is characterized in that the end face of valve seat can be held diaphragm below the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226293 CN2421474Y (en) | 2000-04-18 | 2000-04-18 | Self-operated flow controlling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00226293 CN2421474Y (en) | 2000-04-18 | 2000-04-18 | Self-operated flow controlling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2421474Y true CN2421474Y (en) | 2001-02-28 |
Family
ID=33590168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00226293 Expired - Fee Related CN2421474Y (en) | 2000-04-18 | 2000-04-18 | Self-operated flow controlling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2421474Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701631B (en) * | 2009-09-28 | 2012-01-11 | 精工阀门有限公司 | Cutoff, return stop and control valve |
| CN102829222A (en) * | 2012-08-17 | 2012-12-19 | 浙江盾安阀门有限公司 | Pressure-difference-variable flow control valve |
| CN103270361A (en) * | 2010-12-06 | 2013-08-28 | Mib意大利股份公司 | Device for automatic closure of control valves in separable connection units for flexible pipes |
| CN105927774A (en) * | 2016-06-30 | 2016-09-07 | 高继升 | Multifunctional balance valve |
-
2000
- 2000-04-18 CN CN 00226293 patent/CN2421474Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701631B (en) * | 2009-09-28 | 2012-01-11 | 精工阀门有限公司 | Cutoff, return stop and control valve |
| CN103270361A (en) * | 2010-12-06 | 2013-08-28 | Mib意大利股份公司 | Device for automatic closure of control valves in separable connection units for flexible pipes |
| CN103270361B (en) * | 2010-12-06 | 2015-03-18 | Mib意大利股份公司 | Device for automatic closure of control valves in separable connection units for flexible pipes |
| CN102829222A (en) * | 2012-08-17 | 2012-12-19 | 浙江盾安阀门有限公司 | Pressure-difference-variable flow control valve |
| CN105927774A (en) * | 2016-06-30 | 2016-09-07 | 高继升 | Multifunctional balance valve |
| CN105927774B (en) * | 2016-06-30 | 2019-01-15 | 高继升 | A kind of Multifunctional balance valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAANXI ZHENMEI AEROSPACE SCIENCE AND TECHNOLOGY C Free format text: FORMER NAME OR ADDRESS: MA YOUJIANG |
|
| CP03 | Change of name, title or address |
Address after: 710100, Xi'an 151 mailbox Shaanxi Zhen Mei Aerospace Technology Co., Ltd. contact: Dong Jianhua Patentee after: Shanxi Zhenmei Aerospace Technology Co., Ltd. Address before: Box 15, Xi'an, Shaanxi, China Patentee before: Ma Youjiang |
|
| 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 |