CN201875233U - Multifunctional constant flow adjusting valve - Google Patents
Multifunctional constant flow adjusting valve Download PDFInfo
- Publication number
- CN201875233U CN201875233U CN2010201187510U CN201020118751U CN201875233U CN 201875233 U CN201875233 U CN 201875233U CN 2010201187510 U CN2010201187510 U CN 2010201187510U CN 201020118751 U CN201020118751 U CN 201020118751U CN 201875233 U CN201875233 U CN 201875233U
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- valve
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- peripheral wall
- valve body
- constant flow
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Abstract
A multifunctional constant flow adjusting valve for fluid adjustment and automatic control comprises a valve body; the upper part of the valve body is provided with a valve cover; the lower part of the valve body is provided with a drain outlet; the center of the valve cover is provided with a valve shaft; the lower part of the valve shaft is provided with an adjusting valve clack; and a valve sleeve, a pressure difference sensor and a double-seat valve clack for pressure difference compensation are arranged inside the valve body to form a valve core. Compared with the prior art, the multifunctional constant flow adjusting valve is more compact and reasonable in structure, simple to disassemble and maintain, visual for flow display and rich in function, and can be applied to more fields.
Description
Technical field
The utility model relates to a kind of multifunction constant flow adjustable valve that is used for fluid regulation and controls automatically.
Background technique
Need in the system of FLUID TRANSPORTATION at water supply, central heat supply and central air-conditioner etc., the flow of fluid often needs to carry out balanced control, promptly can not cause flow to change under the situation of change in fluid pressure.Existing self-operated flow control valve in order to realize the structure that above-mentioned functions adopts is: valve body, adjusting flap, elastomer diaphragm, spring, pressure difference compensation flap.When the valve inlet outlet pressure differential changes, the pressure of valve export reaches elastomer diaphragm one side by the valve body PRESSURE PIPE, the liquid of valve inlet reaches the opposite side of elastomer diaphragm through the post-decompression pressure of pressure difference compensation flap, elastomer diaphragm is experienced the position that above-mentioned two kinds of pressure are adjusted the pressure difference compensation flap, reaches the purpose that prevents changes in flow rate.Though this class valve possesses the function of constant flow rate, its complex structure, the dismounting maintenance difficult, flow control accuracy is not high.
Summary of the invention
In order to overcome the deficiency of existing self-operated flow control valve complex structure, dismounting maintenance difficult, the purpose of this utility model provides a kind of multifunction constant flow adjustable valve simple and compact for structure, after its aperture is determined, flow does not change with the variation of pressure before and after the valve, and demolition and maintenance are simple, are fit to very much China's heating network.
The utility model solves its technical problem and is achieved in that the multifunction constant flow adjustable valve has peripheral wall at valve inner, and the peripheral wall top of the side of intaking has water intake, and the peripheral wall bottom of water outlet one side has water outlet, and positioning screw hole is arranged on the peripheral wall.Valve gap is housed on the valve body, and bonnet lower has flange, and the flange lower inside has the ring packing boss.There is through hole at the valve gap center, and valve shaft passes the through hole at valve gap center, can external collection or the device of conducted signal, and also can external actuator.The valve shaft bottom is connected to concentric adjusting flap, regulate the flap bottom spool of being made up of differential pressure sensor, valve pocket, two-seater flap and clamping bolt is housed, differential pressure sensor is equipped with on spool top, valve pocket is equipped with in the bottom, the two-seater flap is equipped with in valve pocket inside, by clamping bolt differential pressure sensor and two-seater flap is fixed.The valve pocket influent side has the water inlet, and valve pocket is provided with locating slot.In the positioning screw hole of valve body peripheral wall holding down bolt is housed, this holding down bolt stretches in the locating slot of valve pocket, with fixing valve pocket.The valve body bottom is provided with opening.
There is boss at valve inner peripheral wall middle part, and the peripheral wall boss top of influent side has water intake, and the peripheral wall boss bottom of water outlet side has water outlet, and positioning screw hole is arranged on the peripheral wall.Valve body top have with peripheral wall with one heart with the opening of diameter, opening connects valve gap by flange.Valve body lower portion has threaded openings, can connect equipment such as blowdown plug, drain pipe.Valve body is metal, pottery or plastic materials such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel.
Bonnet lower has the flange that connects valve body, and the flange lower inside has the ring packing boss, and seal ring is equipped with in the ring packing boss outside, and the ring packing boss is fixed on seal ring between valve gap and the valve body.There is through hole at the valve gap center.Valve gap is metal, pottery or plastic materials such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel.
Valve shaft passes the valve gap central through bore, there is through hole at the valve shaft center, the device that can connect collection or conducted signal, the collection or the conducted signal device that connect can be: PRESSURE PIPE or sensor etc., stifled go up that through hole can also connect manually, surges, the actuator of form such as pneumatic or electronic, manual actuator can be: handwheel, turbine, gear, rocking bar, spring lever, manual drive or speed changer etc.The hydraulic actuator that connects can be: oil hydraulic cylinder or oil hydraulic motor etc.The pneumatic actuator that connects can be: barrier film, cylinder, blade, air engine, film or ratchet combination etc.The electric actuator that connects can be: the electric actuator of electromagnetism, stepper motor, the electric actuator that line traffic control is arranged or Wireless remote control etc.The valve shaft bottom is connected to concentric adjusting flap, regulating flap can be the axle rotation with the valve shaft, regulates the flap upper end and is provided with through hole, and its underpart is that the lower end is the sleeve of spiral end face, valve shaft, adjusting flap and sleeve are hollow structure, and form ascending ladder-type external shape.Described valve shaft, adjusting flap and sleeve can be metal, pottery or plastic materials such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel, and described PRESSURE PIPE can be metal, pottery or pressure hoses such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel.
Regulate the flap bottom spool of being made up of differential pressure sensor, valve pocket, two-seater flap and clamping bolt is housed, differential pressure sensor is equipped with on spool top, and valve pocket is equipped with in the bottom, and differential pressure sensor and valve pocket are for being tightly connected.The two-seater flap is equipped with in valve pocket inside, by clamping bolt differential pressure sensor and two-seater flap is fixed, and the two-seater flap can slide along the medial axis direction.The valve pocket influent side has the water inlet, and valve pocket is provided with locating slot.In the positioning screw hole of valve body peripheral wall holding down bolt is housed, this holding down bolt stretches in the locating slot of valve pocket bottom, fixedly the relative position of valve pocket and valve body.
Differential pressure sensor can be bellows, spring, elastomer diaphragm or sliding piston, and described valve pocket is a tubular construction, and upper end is provided with through hole, and the outer is provided with a closure gasket groove, and seal ring is housed in the annular groove.The material of bellows and spring is metal or rubber such as carbon steel, stainless steel, copper, iron, alloy, and the material of valve pocket and two-seater flap is metal, pottery or plastics such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel.Seal ring can be materials such as nitrile butadiene rubber, ethylene propylene rubber, teflon or fluorine rubber.
The valve body bottom is provided with sewage draining exit, and sewage draining exit can be connected with equipment such as blowdown plug, drain pipe or safety valves.Placement adopts and is threaded or the flange connection, and sealing material can be seal ring, pad and raw meal belt.The blowdown plug is metal, pottery or nonmetallic material such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel, and drain pipe is metal or pressure hoses such as carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel.
The multifunction constant flow adjustable valve mainly can be applied in the liquid control system in fields such as heating, central air-conditioner, tap water, rock gas and oil.
With respect to former constant flow control valve, our improvement also comprises can connect the device of gathering conducted signal, not only can limited flow rate, and can change according to Intranet and adjust flow automatically, be mainly used in the power-supply metering system.And the change of internal structure can make the multifunction constant flow adjustable valve realize field stripping, and inner stopping state can on-the-spot be cleared up, and has guaranteed operation steady in a long-term, significantly reduces engineering time.
The sewage draining exit of valve body bottom also can be implemented in the line blowdown, further reduces rate of fault.
Below in conjunction with drawings and Examples the utility model is further specified.
Description of drawings:
Fig. 1 is an embodiment's of the utility model a structural representation;
The valve shaft of Fig. 2 center band through hole and modulating valve valve structure schematic representation
Among the figure: 1. valve body, 2. valve gap, the 3a. valve shaft, 3b. regulates flap, 4. valve pocket, 5. two-seater flap, 6. differential pressure sensor, 7. differential, 8. blowdown plug, 9a. clamping bolt, 9b. holding down bolt, 10a. the through hole in the through hole on the adjusting flap, 10b. valve pocket, the through hole at 10c. valve shaft center, 11a. external cavity, 11b. internal cavities, 12. water intakes, 13. water outlet, 14. dials, 15. sewage draining exits.
Embodiment
The multifunction constant flow adjustable valve that is used for fluid regulation and controls automatically comprises valve body 1, and valve gap 2 is housed on the valve body 1, valve shaft 3a is housed in the valve body 1, regulates flap 3b, two-seater flap 5, valve pocket 4, differential pressure sensor 6.Valve gap 2 compresses adjusting flap 3b by differential 7 and reaches positioning action, and valve gap 2 is connected with valve body by flange, adds seal ring by the ring packing boss of flange lower inside valve gap is fixed on the valve body closely, and guaranteed good sealing effect.Thereby valve shaft 3a can change the aperture of regulating flap by the rotation of different actuators regulates the flow size, has dial 14 to show flow value on valve gap 2.
Present embodiment is sealedly connected on valve pocket 4 tops with differential pressure sensor 6, two-seater flap (playing the pressure difference compensation effect) 5 is installed in the inside of valve pocket 4, with bolt 9a differential pressure sensor 6 is connected together with two-seater flap 5, make it to become the one valve core structure that to experience pressure reduction and possess the pressure difference compensation effect.
Present embodiment is provided with sewage draining exit in valve body lower portion, and sediments can be discharged valve body by the blowdown plug and the drain pipe that are connected with sewage draining exit in the valve body, guarantees that valve normally moves, simultaneously can external safety valve, and the assurance manifold pressure is in safety range.
Present embodiment stops up easily because water quality may be messy in the pipe network of using.But because the design of our satisfactory texture is opened valve gap by flange, can be complete spool be all drawn out is next, is convenient to on-the-spot cleaning and maintenance.When reinstalling, again because there is in the valve body holding down bolt that relative position is fixed, so not can because of installation direction not to and influence flow control.
The fluid that enters valve along the direction of arrow among Fig. 1 is being regulated three sections different pressures of generation under flap 3b, valve pocket 4,5 effects of two-seater flap.Fluid is the highest to the pressure of regulating before the flap 3b from import 12, is called P1; Fluid produces pressure drops through regulating flap 3, and this section pressure before the two-seater flap 5 is called P2; Fluid produces pressure drop through two-seater flap 5 with the passage between the valve pocket 4 again, and this section pressure that arrives outlet 13 is minimum, is called P3.Wherein P1 can be by regulating the gap between flap 3b and the valve body 1, the through hole 10a on the adjusting flap 3b, conduct to the external cavity 11a of differential pressure sensor 6, P2 can conduct to differential pressure sensor 6 internal cavities 11b by the through hole 10b in the valve pocket 4, P1-P2 is the pressure reduction inside and outside the differential pressure sensor 6, simultaneously also be the pressure reduction of regulating flap 3b front and back, we are called the pressure reduction that dams, and P2-P3 is compensation pressure reduction, and P1-P3 is that valve is imported and exported total pressure head.
When one timing of Flow-rate adjustment flap 3b aperture, area of passage when being fluid process adjusting flap 3b is constant, when valve total pressure head P1-P3 increases, flow is temporarily increased, the pressure reduction P1-P2 that dams simultaneously also temporarily increases, making differential pressure sensor 6 be compressed and drive two-seater flap 5 descends, circulation area is reduced, therefore compensating pressure reduction P2-P3 increases, at this moment the pressure reduction P1-P2 that dams equals valve total pressure head P1-P3 and deducts compensation pressure reduction P2-P3 and will keep initial value constant, area of passage is constant simultaneously, thus constant flow; Otherwise, valve total pressure head P1-P3 reduces, flow is temporarily reduced, the pressure reduction P1-P2 that dams simultaneously also temporarily reduces, make differential pressure sensor 6 expansions and drive two-seater flap 5 and rise, circulation area is increased, therefore compensate pressure reduction P2-P3 and reduce, the pressure reduction P1-P2 that at this moment dams equals valve total pressure head P1-P3 and deducts compensation pressure reduction P2-P3 and still keep initial value constant.So, when total pressure head changed before and after the valve, the pressure reduction that can both constantly dam remained unchanged, so it is all constant to regulate the pressure reduction that dams of each corresponding area of passage of flap 3 rotations, so flow only can change with regulating flap 3 apertures, does not change with total pressure head variation before and after the valve.
Claims (9)
1. a multifunction constant flow adjustable valve comprises valve body, valve gap, and spool is housed in the valve body, it is characterized in that: peripheral wall is arranged at valve inner, the peripheral wall top of the side of intaking has water intake, and the peripheral wall bottom of water outlet one side has water outlet, and positioning screw hole is arranged on the peripheral wall; Valve gap is housed on the valve body, and bonnet lower has flange, and the flange lower inside has the ring packing boss; There is through hole at the valve gap center, and valve shaft passes the through hole at valve gap center, can external collection or the device of conducted signal, and also can external actuator; The valve shaft bottom is connected to concentric adjusting flap, regulate the flap bottom spool of being made up of differential pressure sensor, valve pocket, two-seater flap and clamping bolt is housed, differential pressure sensor is equipped with on spool top, valve pocket is equipped with in the bottom, the two-seater flap is equipped with in valve pocket inside, by clamping bolt differential pressure sensor and two-seater flap is fixed; The valve pocket influent side has the water inlet, and valve pocket is provided with locating slot; In the positioning screw hole of valve body peripheral wall holding down bolt is housed, this holding down bolt stretches in the locating slot of valve pocket, with fixing valve pocket; The valve body bottom is provided with sewage draining exit.
2. multifunction constant flow adjustable valve according to claim 1, it is characterized in that: described valve inner has peripheral wall, and there is boss at the peripheral wall middle part, and the peripheral wall boss top of influent side has water intake, the peripheral wall boss bottom of water outlet side has water outlet, and positioning screw hole is arranged on the peripheral wall; Valve body top have with peripheral wall with one heart with the opening of diameter, opening connects valve gap by flange; Valve body is carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or plastic material.
3. multifunction constant flow adjustable valve according to claim 1, it is characterized in that: described bonnet lower has the flange that connects valve body, the flange lower inside has the ring packing boss, and seal ring is equipped with in the ring packing boss outside, and the ring packing boss is fixed on seal ring between valve gap and the valve body; There is through hole at the valve gap center; Valve gap is carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or plastic material.
4. multifunction constant flow adjustable valve according to claim 1, it is characterized in that: described valve shaft passes the valve gap central through bore, there is through hole at the valve shaft center, the device that can connect collection or conducted signal, the collection or the conducted signal device that connect are: PRESSURE PIPE or sensor, stifled go up that through hole can also connect manually, surges, the actuator of pneumatic or powered version, manual actuator is: handwheel, turbine, gear, rocking bar, spring lever, manual drive or speed changer; The hydraulic actuator that connects is: oil hydraulic cylinder or oil hydraulic motor; The pneumatic actuator that connects is: barrier film, cylinder, blade, air engine, film or ratchet combination; The electric actuator that connects is: electromagnetism, stepper motor, the electric actuator of line traffic control or the electric actuator of Wireless remote control are arranged; The valve shaft bottom is connected to concentric adjusting flap, regulating flap can be the axle rotation with the valve shaft, regulates the flap upper end and is provided with through hole, and its underpart is that the lower end is the sleeve of spiral end face, valve shaft, adjusting flap and sleeve are hollow structure, and form the outside shape of ascending ladder-type; Described valve shaft, adjusting flap and sleeve are carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or plastic material, and described PRESSURE PIPE is carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or pressure hose.
5. multifunction constant flow adjustable valve according to claim 1, it is characterized in that: the spool of being made up of differential pressure sensor, valve pocket, two-seater flap and clamping bolt is equipped with in described adjusting flap bottom, differential pressure sensor is equipped with on spool top, valve pocket is equipped with in the bottom, and differential pressure sensor and valve pocket are for being tightly connected; The two-seater flap is equipped with in valve pocket inside, by clamping bolt differential pressure sensor and two-seater flap is fixed, and the two-seater flap can slide along the medial axis direction; The valve pocket influent side has the water inlet, and valve pocket is provided with locating slot; In the positioning screw hole of valve body peripheral wall holding down bolt is housed, this holding down bolt stretches in the locating slot of valve pocket bottom, fixedly the relative position of valve pocket and valve body.
6. multifunction constant flow adjustable valve according to claim 5, it is characterized in that: described differential pressure sensor is bellows, spring, elastomer diaphragm or sliding piston, and described valve pocket is a tubular construction, and upper end is provided with through hole, the outer is provided with a closure gasket groove, and seal ring is housed in the annular groove.
7. multifunction constant flow adjustable valve according to claim 6, it is characterized in that: the material of described bellows and spring can be: carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal or rubber, and the material of valve pocket and two-seater flap is: carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or plastics; Described seal ring is nitrile butadiene rubber, ethylene propylene rubber, teflon or fluorine rubber material.
8. multifunction constant flow adjustable valve according to claim 1 is characterized in that: described valve body bottom is provided with sewage draining exit, and sewage draining exit can be connected with blowdown plug, drain pipe, safety valve equipment; Placement adopts and is threaded or the flange connection, can use seal ring, pad or raw meal belt sealing.
9. multifunction constant flow adjustable valve according to claim 8, it is characterized in that: described blowdown plug is carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal, pottery or nonmetallic material, and described drain pipe is carbon steel, stainless steel, copper, iron, aluminium, zinc, nickel metal or pressure hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201187510U CN201875233U (en) | 2010-02-23 | 2010-02-23 | Multifunctional constant flow adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201187510U CN201875233U (en) | 2010-02-23 | 2010-02-23 | Multifunctional constant flow adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875233U true CN201875233U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201187510U Expired - Lifetime CN201875233U (en) | 2010-02-23 | 2010-02-23 | Multifunctional constant flow adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875233U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899834A (en) * | 2014-03-18 | 2014-07-02 | 营口泰通自动化设备有限公司 | High-pressure constant-flow regulating valve |
| WO2015188950A1 (en) * | 2014-06-11 | 2015-12-17 | Tata Steel Nederland Technology B.V. | Valve for high temperature liquid |
| CN106194876A (en) * | 2016-08-31 | 2016-12-07 | 北京精密机电控制设备研究所 | A kind of self-cleaning type constant flow control valve |
| CN106704652A (en) * | 2016-11-17 | 2017-05-24 | 成都聚智工业设计有限公司 | Pressure regulating valve |
| CN110762238A (en) * | 2019-11-19 | 2020-02-07 | 华北水利水电大学 | Automatic fluid flow rate control device |
| CN111895116A (en) * | 2020-08-06 | 2020-11-06 | 孔庆丰 | Novel plunger type constant flow valve |
-
2010
- 2010-02-23 CN CN2010201187510U patent/CN201875233U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899834A (en) * | 2014-03-18 | 2014-07-02 | 营口泰通自动化设备有限公司 | High-pressure constant-flow regulating valve |
| WO2015188950A1 (en) * | 2014-06-11 | 2015-12-17 | Tata Steel Nederland Technology B.V. | Valve for high temperature liquid |
| US10167972B2 (en) | 2014-06-11 | 2019-01-01 | Tata Steel Nederland Technology B.V. | Valve for high temperature liquid |
| CN106194876A (en) * | 2016-08-31 | 2016-12-07 | 北京精密机电控制设备研究所 | A kind of self-cleaning type constant flow control valve |
| CN106194876B (en) * | 2016-08-31 | 2018-04-10 | 北京精密机电控制设备研究所 | A kind of self-cleaning type constant flow control valve |
| CN106704652A (en) * | 2016-11-17 | 2017-05-24 | 成都聚智工业设计有限公司 | Pressure regulating valve |
| CN110762238A (en) * | 2019-11-19 | 2020-02-07 | 华北水利水电大学 | Automatic fluid flow rate control device |
| CN111895116A (en) * | 2020-08-06 | 2020-11-06 | 孔庆丰 | Novel plunger type constant flow valve |
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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: TIANJIANXING ELECTROMECHANIC TECHNOLOGY CO., LTD., Free format text: FORMER OWNER: BEIJING TIANJIANXING ENERGY SAVING TECHNOLOGY CO., LTD. Effective date: 20120301 Free format text: FORMER OWNER: LIU JIAN Effective date: 20120301 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100041 SHIJINGSHAN, BEIJING TO: 100009 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120301 Address after: 100009, 12 Hutong, Dongcheng District, Beijing Patentee after: BEIJING TIANJIANXING ELECTRICAL TECHNOLOGY CO., LTD. Address before: 100041, room 3, building 3, No. 4668, West well road, Badachu hi tech park, Beijing, Shijingshan District Co-patentee before: Liu Jian Patentee before: Beijing Tianjianxing Energy Saving Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |