CN202972005U - Flow control valve - Google Patents
Flow control valve Download PDFInfo
- Publication number
- CN202972005U CN202972005U CN 201220572572 CN201220572572U CN202972005U CN 202972005 U CN202972005 U CN 202972005U CN 201220572572 CN201220572572 CN 201220572572 CN 201220572572 U CN201220572572 U CN 201220572572U CN 202972005 U CN202972005 U CN 202972005U
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- CN
- China
- Prior art keywords
- flow control
- control valve
- valve body
- water port
- spool
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000009467 reduction Effects 0.000 claims description 10
- 208000002925 dental caries Diseases 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a flow control valve and belongs to the technical field of valves. The flow control valve solves the problems that the existing control valve is relatively complicated in structure and high in cost, and is provided with many spare parts. The flow control valve comprises a valve body internally provided with a cavity, wherein the two ends of the valve body are an inlet end and an outlet end respectively; a guide cylinder is fixedly connected in the valve body; a water through hole I communicated with the inlet end and a water through hole II communicated with the outlet end are formed at the side part of the guide cylinder; a valve core is arranged at the water through hole I; the valve core extends out of the valve body and is fixedly connected with a hand wheel; and a balance mechanism capable of balancing differential pressure between the inlet end and the outlet end is arranged at the water through hole II. The whole flow control valve is simple in structure and light to operate, and the manufacturing cost is lowered greatly.
Description
Technical field
The utility model belongs to valve technology field, relates to a kind of flow control valve.
Background technique
Self-operated flow control valve is a kind of hydraulic equilibrium valve of automatic constant flow.Can set flow by demand, and will keep constant by the flow of valve.Be applied in the water systems such as central heat supply, central air-conditioner, the Flow-rate adjustment of pipe network once be completed, transferring net work to become simple assignment of traffic.When having exempted the thermal source switching, flow is redistributed work, effectively solves the hydraulic misadjustment of pipe network.
a kind of self-operated flow control valve [application number: 201120429037.8] as the Chinese patent announcement, comprise the valve body that is provided with import and outlet, being provided with medium channel between import and outlet is communicated with, valve body is provided with the manual tune assembly of manual tune medium channel flow and automatically regulates the automatic adjusting part of medium channel flow, described automatic adjusting part comprises the spool and the lower valve rod that is fixedly connected with spool in the restriction that is located at medium channel, described spool is telescopic spool, the outer ring surface of spool coordinates with the restriction ring-side wall, the inside of spool is provided with the fixed plate that is fixedly connected with lower valve rod, be provided with the gap between fixed plate and spool madial wall.This structure is easily manufactured, and complete function reduces medium to the erosion of regulating spool, improves the working life of spool and the degree of regulation of control valve, and improves the stability that product moves in system.But this control valve structure is more complicated, and component are various, and cost is high.
Summary of the invention
The purpose of this utility model is for existing technical problem, has proposed a kind of flow control valve simple in structure.
The purpose of this utility model can realize by following technical proposal: a kind of flow control valve, comprise the inner valve body of cavity that is, the two ends of described valve body are respectively entrance point and outlet end, it is characterized in that, be fixed with guide cylinder in described valve body, the guide cylinder sidepiece has the water port one that communicates with entrance point, the water port two that communicates with outlet end, one place, described water port is provided with spool, described spool stretches out valve body and handwheel is connected, and two places, described water port are provided with the balanced controls of pressure reduction between energy balance entrance point and outlet end.
Fluid enters from the entrance point of valve body, enters into guide cylinder through water port one, flows out from the water port two of guide cylinder to enter into outlet end, discharges from outlet end at last.Rotation hand wheel, position that can regulating spool, thus change entrance point to the inflow of guide cylinder.The balanced controls at two places, water port are used for automatically regulating the pressure reduction between entrance point and outlet end, make the pressure reduction of body cavity keep balance, make simultaneously the flow by valve keep constant.Whole flow rate control valve structure is simple, operates lightly, greatly reduces manufacture cost.
In above-mentioned flow control valve, described spool comprises tubular opening and closing part and the joint that links with handwheel, lower end, described opening and closing part tilts, and the highest point that tilts to the opening and closing part when valve core rotation can make water port one close, and the lowest part that tilts to the opening and closing part when valve core rotation can make water port one unlatching.When handwheel was controlled spool and forwarded the inclination lowest part to, spool did not block water port one, so fluid can be from the water port one passed through; When spool forwards highest point to relatively by the hole for the moment, blocked by spool by hole one, valve is in closed condition.The inflow of water port one is determined by the spool coverage extent.
In above-mentioned flow control valve, upper end, described opening and closing part has the gear edge of protrusion, and gear is along being overlapped on the guide cylinder port.Gear is used for fixed spool along the port that is resisted against guide cylinder, and whole spool can not glided along guide cylinder.
In above-mentioned flow control valve, has seal ring between described joint and valve body.Seal ring is used for improving the sealing effect of valve body and joint, prevents that fluid from overflowing from joint.
In above-mentioned flow control valve, described balanced controls comprise the diaphragm that is connected in bottom in valve body, diaphragm is divided into two neighbouring cavitys with valve body: water flowing chamber and counter balance pocket, has the pressure guide hole that entrance point is connected with counter balance pocket on described valve body, two places, described water port have balance valve core, balance valve core and connecting rod are connected, and the other end and the diaphragm of connecting rod are connected.When entrance point pressure increased, fluid entered into counter balance pocket from pressure guide hole, upwards promoted diaphragm, thereby moved on drivening rod and balance valve core, reduced the water-outlet quantity of water port two, made the flow by valve keep constant.The pressure of counter balance pocket reduces, diaphragm returning position, and the aperture of water port two increases, and entrance point pressure also along with reducing, makes the pressure differential maintain of counter balance pocket and entrance point constant.
In above-mentioned flow control valve, has spring between described diaphragm and balance valve core.When counter balance pocket pressure diminished, spring promotion diaphragm moved down and makes diaphragm energy returning position, moves down thereby drive balance valve core.
In above-mentioned flow control valve, described connecting rod lower end is fixed with two compressing tablets, and above-mentioned diaphragm is pressed between two compressing tablets.Easily be out of shape when diaphragm moves, cause spring to be not easy to control, so after two compressing tablets are set, diaphragm is moved more steady.
In above-mentioned flow control valve, described balance valve core bottom has recessed spring seat, and an end of above-mentioned spring is positioned at the spring seat place.One end of spring is resisted against on spring seat, and spring seat is used for the motion of restraining spring end, prevents the spring swing or deviates from balance valve core.
Compared with prior art, this flow control valve has the following advantages
1. compact structure is simple, and by the handwheel adjust flux, Flow-rate adjustment is visual directly perceived.
2. the aperture that balanced controls can adjustment spool automatic according to the pressure reduction of entrance point and counter balance pocket keeps setting constant flow.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1, valve body; 1a, entrance point; 1b, outlet end; 2, guide cylinder; 2a, water port one; 2b, water port two; 3, spool; 3a, opening and closing part; 3b, joint; 3c, the gear edge; 4, handwheel; 5, seal ring; 6, diaphragm; 7, pressure guide hole; 8, balance valve core; 8a, spring seat; 9, connecting rod; 10, spring; 11, compressing tablet.
Embodiment
As shown in Figure 1, this flow control valve comprises the inner valve body 1 of cavity that is, the two ends of valve body 1 are respectively entrance point 1a and outlet end 1b, be fixed with guide cylinder 2 in valve body 1, guide cylinder 2 sidepieces have water port one 2a that communicates with entrance point 1a, the water port 2b that communicates with outlet end 1b, and one 2a place, water port is provided with spool 3, spool 3 stretches out valve body 1 and is connected with handwheel 4, and 2b place, water port is provided with the balanced controls of pressure reduction between energy balance entrance point 1a and outlet end 1b.
Specifically, spool 3 comprises tubular opening and closing part 3a and the joint 3b that links with handwheel 4, has seal ring 5 between joint 3b and valve body 1.3a lower end, opening and closing part tilts, and when spool 3 turns to the highest point that opening and closing part 3a tilts, water port one 2a is closed, and when spool 3 turns to the lowest part that opening and closing part 3a tilts, water port one 2a is opened.The gear that 3a upper end, opening and closing part has protrusion is along 3c, and gear is overlapped on guide cylinder 2 ports along 3c.
Balanced controls comprise the diaphragm 6 that is connected in valve body 1 interior bottom, diaphragm 6 is divided into two neighbouring cavitys with valve body 1: water flowing chamber and counter balance pocket, has the pressure guide hole 7 that entrance point 1a is connected with counter balance pocket on valve body 1,2b place, water port has balance valve core 8, balance valve core 8 is connected with connecting rod 9, and the other end of connecting rod 9 and diaphragm 6 are connected.Have spring 10 between diaphragm 6 and balance valve core 8, balance valve core 8 bottoms have recessed spring seat 8a, and an end of spring 10 is positioned at spring seat 8a place.Connecting rod 9 lower ends are fixed with two compressing tablets 11, and above-mentioned diaphragm 6 is pressed between two compressing tablets 11.
During system works, when entrance point 1a pressure difference raises, make the also increase thereupon of counter balance pocket pressure reduction of diaphragm 6 belows by pressure guide hole 7, move on balance valve core 8 thereby make diaphragm 6 extrusion springs 10 and make, the aperture of water port 2b is reduced, flow velocity increases and flow reduces, thereby reaches the purpose that keeps the constant flow set.When valve body 1 internal pressure raises, thereby the pressure differential maintain that guarantees spool 3 two ends is constant.When otherwise entrance point 1a pressure reduction reduced, the aperture of water port 2b increased, and counter balance pocket pressure reduction reduces, and makes the pressure reduction of water flowing chamber and counter balance pocket remain constant.
Claims (8)
1. flow control valve, comprise the inner valve body of cavity (1) that is, the two ends of described valve body (1) are respectively entrance point (1a) and outlet end (1b), it is characterized in that, be fixed with guide cylinder (2) in described valve body (1), guide cylinder (2) sidepiece has the water port one (2a) that communicates with entrance point (1a), the water port two (2b) that communicates with outlet end (1b), spool (3) is located to be provided with in described water port one (2a), described spool (3) stretches out valve body (1) and is connected with handwheel (4), the balanced controls of pressure reduction between energy balance entrance point (1a) and outlet end (1b) are located to be provided with in described water port two (2b).
2. flow control valve according to claim 1, it is characterized in that, described spool (3) comprises tubular opening and closing part (3a) and the joint (3b) that links with handwheel (4), lower end, described opening and closing part (3a) tilts, and the highest point that turns to opening and closing part (3a) inclination when spool (3) can make water port one (2a) close, and the lowest part that turns to opening and closing part (3a) inclination when spool (3) can make water port one (2a) open.
3. flow control valve according to claim 2, is characterized in that, the gear that upper end, described opening and closing part (3a) has a protrusion is along (3c), and gear is overlapped on guide cylinder (2) port along (3c).
4. flow control valve according to claim 3, is characterized in that, has seal ring (5) between described joint (3b) and valve body (1).
5. according to claim 1 and 2 or 3 or 4 described flow control valves, it is characterized in that, described balanced controls comprise the diaphragm (6) that is connected in the interior bottom of valve body (1), diaphragm (6) is divided into two neighbouring cavitys with valve body (1): water flowing chamber and counter balance pocket, has the pressure guide hole (7) that entrance point (1a) is connected with counter balance pocket on described valve body (1), described water port two (2b) locates to have balance valve core (8), balance valve core (8) is connected with connecting rod (9), and the other end of connecting rod (9) and diaphragm (6) are connected.
6. flow control valve according to claim 5, is characterized in that, has spring (10) between described diaphragm (6) and balance valve core (8).
7. flow control valve according to claim 6, is characterized in that, described connecting rod (9) lower end is fixed with two compressing tablets (11), and above-mentioned diaphragm (6) is pressed between two compressing tablets (11).
8. flow control valve according to claim 7, is characterized in that, described balance valve core (8) bottom has recessed spring seat (8a), and an end of above-mentioned spring (10) is positioned at spring seat (8a) and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572572 CN202972005U (en) | 2012-11-01 | 2012-11-01 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572572 CN202972005U (en) | 2012-11-01 | 2012-11-01 | Flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972005U true CN202972005U (en) | 2013-06-05 |
Family
ID=48513081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220572572 Expired - Fee Related CN202972005U (en) | 2012-11-01 | 2012-11-01 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228217A (en) * | 2017-05-25 | 2017-10-03 | 大禹节水集团股份有限公司 | The adjustable pressure regulator of a kind of set pressure, flow |
-
2012
- 2012-11-01 CN CN 201220572572 patent/CN202972005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228217A (en) * | 2017-05-25 | 2017-10-03 | 大禹节水集团股份有限公司 | The adjustable pressure regulator of a kind of set pressure, flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: VOLDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Free format text: FORMER OWNER: ZHUO DANCHUN Effective date: 20140421 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317608 TAIZHOU, ZHEJIANG PROVINCE TO: 223900 SUQIAN, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140421 Address after: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee after: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. Address before: Taizhou City, Zhejiang province 317608 Yuhuan County Lu Pu Industrial Park Zhejiang world HVAC technology Co Ltd Patentee before: Zhuo Danchun |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170222 Address after: Jiangdong Road Jianye District of Nanjing City, Jiangsu province 210019 C Wanda Center No. 108 Room 501 Patentee after: Jiangsu Wo Hui Industrial Technology Group Limited Address before: Suqian City, Jiangsu province Shuang'gou 223900 west of Sihong County Economic Development Zone No. 388 Patentee before: WOERDA ENVIRONMENTAL TECHNOLOGY JIANGSU CO., LTD. |
|
| 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: 20130605 Termination date: 20171101 |