WO2000008364A1 - Soupape de reglage electropneumatique d'un debit liquide - Google Patents
Soupape de reglage electropneumatique d'un debit liquide Download PDFInfo
- Publication number
- WO2000008364A1 WO2000008364A1 PCT/CN1999/000106 CN9900106W WO0008364A1 WO 2000008364 A1 WO2000008364 A1 WO 2000008364A1 CN 9900106 W CN9900106 W CN 9900106W WO 0008364 A1 WO0008364 A1 WO 0008364A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- cavity
- flow
- water film
- regulating valve
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
Definitions
- the invention relates to a liquid flow regulating valve, in particular to an electronically controlled liquid flow regulating valve mainly used for a fully automatic gas water heater. Background technique
- a water-air linkage solenoid valve is commonly used.
- the water pan is provided with a mechanical constant current device.
- the handle is rotated to adjust the water flow.
- the pressure difference between the front and rear chambers of the water film is used to push the double closing of the air valve and the switch of the igniter is started to start the gas water heater.
- the mechanical constant current characteristics of the water pan are restricted by its structure and machining accuracy. When the range of water pressure changes is large, the water flow rate still changes greatly.
- An object of the present invention is to provide an electronically controlled regulating valve for liquid flow. It can continuously adjust the size of liquid flow through the change of water flow rate, and has the characteristics of fast adjustment and high constant current accuracy.
- Another object of the present invention is to provide an electronically-controlled regulating valve for liquid flow rate. After processing the electric signal of the flow meter, the gas water heater can be started to make the gas water heater according to a preset flow rate. Start without being affected by changes in water pressure, and avoid dry-burning of the water heater.
- An electronically-controlled regulating valve for liquid flow provided by the present invention includes a valve housing, and the valve housing includes a water inlet pipe and a water outlet pipe.
- a water film cavity is provided between the water inlet pipe and the water outlet pipe.
- a water film regulating mechanism is provided in the water film cavity.
- the water film divides the water film cavity into a water film front cavity and a water film back cavity.
- the water film front cavity is in communication with the water inlet pipe;
- the cavity is equipped with a flow meter that can generate an electrical signal according to the change of water flow.
- a water inlet channel is respectively provided between the position of the front cavity of the membrane and the back cavity of the water membrane.
- a water outlet channel is provided between the water film back cavity and the water outlet pipe, and an adjustment cavity controlled by a flow control device is provided in the water outlet channel.
- a flow control device capable of controlling the water flow of the water outlet channel according to an electric signal from a flow meter is provided outside the valve housing.
- One structure of the water film adjustment mechanism is composed of a water film, a support plate, and a spring. Bosses are provided at the front and rear sides of the center of the pallet, and the water film is tightly sleeved into the front projection.
- a spring is positioned between the rear side of the pallet and the wall of the water membrane through the rear projection.
- the other structure of the water film adjusting mechanism is composed of a water film, a plate spring, a conical valve core and a nut.
- the water film and the supporting plate are provided with a central hole, and the conical valve core passes through the two center holes and is fastened with a nut.
- a spring is installed between the supporting plate and the back wall of the water film.
- the liquid referred to in the present invention includes a conductive liquid, such as water, and a non-conductive liquid.
- the flowmeter may be a rotor flowmeter, which is composed of a rotor impeller and a probe.
- the valve housing corresponding to the impeller is insulated from the valve housing.
- the probe can be stainless steel.
- the rotor impeller is mounted on the valve housing corresponding to the probe.
- the valve housing is made of conductive material and grounded.
- the flow meter may be a rotor flow meter, which is composed of a Hall element and a rotor impeller inlaid with a permanent magnet.
- a light-sensitive receiving tube can also be installed at the probe position, a light-emitting tube can be installed at the corresponding geometric position of the light-sensitive receiving tube, and the light-sensitive receiving tube can also receive signals when the impeller rotates.
- the Hall element is mounted on the valve housing corresponding to the impeller.
- the flow control device may be a rotor-type electromagnet, and the flow control device may also be a stepping motor.
- the water inlet channel is provided with a flow-assisted adjusting cavity, and the cavity is provided with steel balls, springs and adjusting screws.
- the steel balls, springs, and adjustment screws installed in the flow-assisted adjustment cavity can also be replaced by a small hole as a throttle hole.
- a valve disc is installed in the regulating cavity, and the valve disc is mounted on the valve disc bracket, and the valve disc is driven by the flow control device to open and close the regulating valve port.
- FIG. 1 is a schematic structural diagram of a rotor-type liquid flow electronically controlled regulating valve according to the present invention.
- FIG. 2 is a side view of the rotor-type electromagnet shown in FIG. 1 and a connecting portion with the valve disc.
- FIG. 3 is a cross-sectional view of the rotor flowmeter portion shown in FIG. 1.
- FIG. 4 is a schematic diagram of the electrical control of the present invention. The best way to implement the invention
- the rotor-type liquid flow electronic control regulating valve of the present invention is used in a full-automatic gas water heater.
- the regulating valve includes a valve housing 10, and a water inlet pipe 11 and a water outlet pipe are provided in the valve housing 10. 18, they are not directly connected, but are connected through a water film cavity provided between the water inlet pipe 11 and the water outlet pipe 18.
- the water film 5 is divided into a water film front cavity 27 and a water film back cavity 28.
- the back of the water film 5 is provided with a supporting plate 4.
- the central part of the water film 5 has a round boss that coincides with the valve port 16, that is, the The boss adjusts the opening and closing of the valve port 16.
- the cone-shaped valve core 17 passes through the middle hole of the water film 5 and the supporting plate 4 and is fastened by a fastening nut.
- the water film spring 3 is installed between the supporting plate 4 and the wall of the rear chamber 28 of the water film.
- the conical valve core 17, the water film 5 with a circular boss in the center, the support plate 4 and the spring 3 constitute a water film adjustment mechanism.
- the water film 5 is made of tannin. In the stationary state, the water film 5 round boss closes the valve port 16 by the elastic force of the spring 3.
- a rotor flowmeter cavity 9 is provided in the water inlet pipe 1 1. Shaft holes are drilled on both side walls of the cavity.
- the probe 14 may be stainless steel, which is fastened to the wall of the valve housing 10 corresponding to the end surface of the rotor impeller 12 through an insulating sleeve 15.
- the inner end surface of the probe 14 is parallel to the outer end of the rotor impeller 12 at a distance of 0.3-1.5 mm between.
- a water inlet channel is provided between the position of the water inlet pipe 11 to the front part 27 of the water film and the rear part 28 of the water film. For improving constant current accuracy and stability.
- a flow assist adjustment cavity 32 may be provided in the water inlet passage.
- a steel ball 8, a spring 7, and an adjusting screw 6 are installed in the cavity.
- the steel ball 8 is placed inside the water inlet 31 through which the water inlet channel and the water inlet pipe 11 pass. That is, the installation sequence is a spring 7 and an adjustment screw 6.
- the installation sequence is a spring 7 and an adjustment screw 6.
- the screw 6 By adjusting the screw 6, the water inlet area of the water film front cavity 27 into the water film back cavity 28 can be changed.
- a horizontal hole 33 near the top of the adjustment screw 6 of the flow assist adjustment cavity 32 is in communication with the water film back cavity 28.
- An adjustment chamber 20 is provided between the water outlet pipe 18 and the water film back chamber 28.
- the adjustment valve port 2 in the adjustment chamber 20 is in communication with the water film back chamber 28.
- the adjustment chamber 20 has a horizontal hole 19 in communication with the water outlet pipe 18. .
- an iron-free rotor-type electromagnet 1 which is composed of an iron core 25, a coil 26, and a rotor-type armature 24.
- the rotor armature-type 24 is supported on the iron core 25 through its rotating shaft 29 and bearings.
- the end faces on both sides of the armature 24 have an equal distance from the side of the corresponding iron core. Therefore, the armature 24 has relatively flat suction characteristics, small volume, and large suction power, especially the characteristics of large initial suction power. And you can easily change the force and stroke by changing the length of the force arm.
- the rotor type liquid flow electronically controlled valve requires a larger operating force.
- a disc holder 21 is fastened to the extension end of the rotating shaft 29 of the rotor armature 24 of the non-blocking rotor electromagnet 1 corresponding to the regulating valve port 2 in the adjusting cavity 20, and a valve disc 23 is mounted on the valve disc holder 21.
- a rubber sealing ring is installed in the bearing housing positioning hole on the valve housing 10, and a return spring 34 is also provided between the bracket 22 of the rotor-type electromagnet 1 and the rotor-type armature 24, and an adjustment screw 30 is provided to correct each System errors caused by several factors.
- the rotor-type electromagnet 1 is installed outside the valve housing 10, and a rotating shaft 29 fastened to the rotor-type armature 24 projects into the valve housing 10.
- the extended portion of the bearing housing on the bracket 22 is inserted into the bearing positioning hole on the valve housing 10 to position the turntable 29, and a rubber seal ring is installed between the positioning hole and the shaft.
- Water coming from the water inlet pipe 1 1 of the rotor-type liquid flow electronically controlled regulating valve can flow to the valve outlet pipe 18 through two routes.
- One of the ways is that the main water flows through the rotor flow meter.
- the rotor-type electromagnet 1 is not energized, the regulating valve port 2 is closed due to the action of the return spring 34. At this time, there is no auxiliary water flow, equal pressure in the front and rear chambers of the water film.
- the water film 5 is pressed toward the valve port 16 under the action of the water film spring 3, and in addition to the pressure of water, the regulating valve is in a closed state.
- the rotor-type electromagnet 1 adjusts the opening and closing degree of the valve plate 23 by changing the coil current, thereby adjusting the auxiliary water flow at the valve port 2, and then changing the pressure difference between the front and rear of the water film 5 to make the water film 5
- the opening and closing distance between the central boss and the valve port 16 changes, so that the flow rate of the main water flow also changes.
- the rotor type electromagnet can be replaced by a stepping motor.
- the rotor impeller 12 When water flows through the rotor flowmeter cavity 9, the rotational speed of the rotor impeller 12 and the water flow rate are close to a linear relationship.
- the rotor impeller 12 is made of an insulating material.
- the valve housing 10 is made of metal and grounded. When the rotor impeller 12 rotates, the equivalent area and equivalent length of the probe 14 in contact with water are continuously changed, so that an electrical signal that approximates a sine wave can be obtained on the probe 14, and the frequency of the water flow can be detected using the frequency of this signal. size. As shown in FIG.
- the signal is supplied to the rotor-type electromagnet through a comparator 43 which is compared with a preset voltage of the water flow rate, and then the voltage and current conversion controller 45 1 current.
- the speed of the rotor impeller 12 is increased, and the frequency of the signal output by the probe 14 becomes faster.
- the opening and closing distance between the water film 5 and the valve port 16 is reduced. Conversely, when the water pressure drops, the opening and closing distance between the water film 5 and the valve port 16 increases. The above process enables a more accurate constant current control of the water flow near a preset point.
- the water flow preset point voltage can easily change the water flow, and the constant current characteristics will not be greatly affected by the change in flow.
- the other comparator 44 is compared with the preset voltage of the water heater's starting flow. When the water flow reaches or exceeds the preset flow, the hot water is started. Device, so that the startup of the water heater is only related to the water flow.
- the role of the steel ball 8 and the steel ball spring 7 in the auxiliary adjustment cavity 32 is: when the water pressure is low, the steel ball 8 is pressed against the water inlet 31 of the cavity due to the function of the steel ball spring 7, thereby reducing the auxiliary capacity of the water film back cavity 28.
- the effective water inlet area of the water stream improves the low water pressure constant current characteristics.
- the steel ball 8 quickly retreats, the pressure of the water film back cavity 28 increases, and the opening of the valve port 16 decreases rapidly. Otherwise, The water pressure of the inlet water suddenly decreased, the steel ball 8 was pushed forward rapidly, and the opening of the valve port 16 was quickly increased, thereby avoiding the water hammer phenomenon. And increase the speed of the regulating valve.
- the conical head of the spool 17 is made to improve the linearity of the regulating valve.
- the present invention utilizes an iron-free rotor-type electromagnet with flat suction force and large suction force, and can change the characteristics of the action point and the force by changing the length of the arm, thereby adapting to the control of liquids.
- the flow requires a large force.
- To increase the operating stroke of a rotor-type electromagnet it is only necessary to increase the length of the convex arc surfaces on both sides of the rotor armature and the concave arc surfaces on both sides of the core, without increasing the power consumption of the electromagnet Features can easily increase the valve stroke.
- the invention adopts a flow meter capable of generating a current according to a change in flow rate, for example, a rotor flow meter detects a flow signal, controls the operation of a rotor-type electromagnet through signal processing, and can conveniently and constantly adjust the flow rate. Start the water heater, so that the startup of the whole water heater is only related to the flow. In addition, when the rotor impeller of the rotor flow meter is stuck for some reason, the water heater cannot be started, thereby avoiding the dry burning phenomenon caused by the water valve problem.
- the present invention has the following advantages:
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Measuring Volume Flow (AREA)
- Flow Control (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99936237A EP1101986A4 (en) | 1998-08-05 | 1999-08-03 | VALVE FOR ELECTROPNEUMATIC ADJUSTMENT OF A LIQUID FLOW |
AU51467/99A AU5146799A (en) | 1998-08-05 | 1999-08-03 | Electric-control valve for regulating flow of fluid |
JP2000563964A JP2002522712A (ja) | 1998-08-05 | 1999-08-03 | 流体フロー調節用電気制御バルブ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN98216444.0 | 1998-08-05 | ||
CN98216444U CN2340995Y (zh) | 1998-08-05 | 1998-08-05 | 一种转子式液体流量电控调节阀 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000008364A1 true WO2000008364A1 (fr) | 2000-02-17 |
Family
ID=5241668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN1999/000106 WO2000008364A1 (fr) | 1998-08-05 | 1999-08-03 | Soupape de reglage electropneumatique d'un debit liquide |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1101986A4 (zh) |
JP (1) | JP2002522712A (zh) |
CN (1) | CN2340995Y (zh) |
AU (1) | AU5146799A (zh) |
WO (1) | WO2000008364A1 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2498789B (en) * | 2012-01-30 | 2019-06-26 | Aes Eng Ltd | Valve |
CN112880200A (zh) * | 2019-11-29 | 2021-06-01 | 芜湖美的厨卫电器制造有限公司 | 水流量传感器及热水器 |
CN112943991A (zh) * | 2021-02-09 | 2021-06-11 | 国家石油天然气管网集团有限公司华南分公司 | 一种叶片马达直驱的多冗余电磁先导式安全型水击泄压阀 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100387884C (zh) * | 2006-05-30 | 2008-05-14 | 潘兆铿 | 电控恒流水阀 |
IL208815A0 (en) * | 2010-10-19 | 2011-01-31 | Raphael Valves Ind 1975 Ltd | An integrated ultrasonic flowmeter and hydraulic valve |
RU2455548C1 (ru) * | 2011-04-11 | 2012-07-10 | Аванян Эдуард Александрович | Регулятор расхода жидкости |
CN102661436A (zh) * | 2012-05-15 | 2012-09-12 | 北京京仪海福尔自动化仪表有限公司 | 一种霍尔式智能阀门定位器 |
KR101388176B1 (ko) * | 2013-08-19 | 2014-04-22 | 알피엠컨트롤 주식회사 | 캐비테이션-수충격 방지구를 구비하는 컨트롤 밸브 |
CN104154960A (zh) * | 2014-08-01 | 2014-11-19 | 衢州市鼎盛化工科技有限公司 | 霍尔效应大口径管道流量计 |
CN106763882B (zh) * | 2017-03-08 | 2018-12-28 | 齐鲁工业大学 | 一种预压可调单面薄膜节流器 |
FR3064332A1 (fr) * | 2017-03-21 | 2018-09-28 | Le Savoir Industriel | Electrovanne pour surveiller et commander l’alimentation en fluide d’une installation d’un batiment, et dispositif comportant en outre une telle electrovanne |
CN109114225B (zh) * | 2018-08-22 | 2019-10-29 | 杭州强邦精密机械电器有限公司 | 双压力控制比例阀及控制方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3442287A (en) * | 1966-06-30 | 1969-05-06 | Itt | Pressure regulator and shut-off valve |
CN1041210A (zh) * | 1988-09-13 | 1990-04-11 | 王公瑞 | 双薄膜式常闭电磁阀 |
AU600608B2 (en) * | 1987-11-18 | 1990-08-16 | Hitachi Limited | Diaphragm type water inlet valve |
US5271601A (en) * | 1992-07-29 | 1993-12-21 | Fisher Controls International, Inc. | Regulator valve with diaphragm support |
CN2186832Y (zh) * | 1993-11-21 | 1995-01-04 | 李三平 | 自动卫生水阀 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1152583B (de) * | 1957-09-20 | 1963-08-08 | Richard Pierpont Moore | Membranventil |
DE2605015A1 (de) * | 1976-02-10 | 1977-08-11 | Leinemann Co Flammenfilter | Pilotgesteuertes membranventil |
US4284260A (en) * | 1977-09-15 | 1981-08-18 | Nicolas Baranoff | Automatic discharge valve for liquids |
-
1998
- 1998-08-05 CN CN98216444U patent/CN2340995Y/zh not_active Expired - Fee Related
-
1999
- 1999-08-03 AU AU51467/99A patent/AU5146799A/en not_active Abandoned
- 1999-08-03 WO PCT/CN1999/000106 patent/WO2000008364A1/zh not_active Application Discontinuation
- 1999-08-03 EP EP99936237A patent/EP1101986A4/en not_active Withdrawn
- 1999-08-03 JP JP2000563964A patent/JP2002522712A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3442287A (en) * | 1966-06-30 | 1969-05-06 | Itt | Pressure regulator and shut-off valve |
AU600608B2 (en) * | 1987-11-18 | 1990-08-16 | Hitachi Limited | Diaphragm type water inlet valve |
CN1041210A (zh) * | 1988-09-13 | 1990-04-11 | 王公瑞 | 双薄膜式常闭电磁阀 |
US5271601A (en) * | 1992-07-29 | 1993-12-21 | Fisher Controls International, Inc. | Regulator valve with diaphragm support |
CN2186832Y (zh) * | 1993-11-21 | 1995-01-04 | 李三平 | 自动卫生水阀 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1101986A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2498789B (en) * | 2012-01-30 | 2019-06-26 | Aes Eng Ltd | Valve |
CN112880200A (zh) * | 2019-11-29 | 2021-06-01 | 芜湖美的厨卫电器制造有限公司 | 水流量传感器及热水器 |
CN112880200B (zh) * | 2019-11-29 | 2023-08-04 | 芜湖美的厨卫电器制造有限公司 | 水流量传感器及热水器 |
CN112943991A (zh) * | 2021-02-09 | 2021-06-11 | 国家石油天然气管网集团有限公司华南分公司 | 一种叶片马达直驱的多冗余电磁先导式安全型水击泄压阀 |
CN112943991B (zh) * | 2021-02-09 | 2023-01-17 | 国家石油天然气管网集团有限公司华南分公司 | 一种叶片马达直驱的多冗余电磁先导式安全型水击泄压阀 |
Also Published As
Publication number | Publication date |
---|---|
JP2002522712A (ja) | 2002-07-23 |
CN2340995Y (zh) | 1999-09-29 |
AU5146799A (en) | 2000-02-28 |
EP1101986A4 (en) | 2001-08-22 |
EP1101986A1 (en) | 2001-05-23 |
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