CN106481857B - The water servomechanism of fluctuation resistant to pressure - Google Patents
The water servomechanism of fluctuation resistant to pressure Download PDFInfo
- Publication number
- CN106481857B CN106481857B CN201611018546.5A CN201611018546A CN106481857B CN 106481857 B CN106481857 B CN 106481857B CN 201611018546 A CN201611018546 A CN 201611018546A CN 106481857 B CN106481857 B CN 106481857B
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- CN
- China
- Prior art keywords
- water
- valve
- spool
- valve body
- valve rod
- 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.)
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Abstract
The present invention relates to a kind of water servomechanisms of fluctuation resistant to pressure, include the valve rod of valve body and position in the inner, and the valve body is equipped with the water outlet positioned at the water inlet of side wall and positioned at lower part；Servo motor is drivingly connected the valve rod, and the lower end position of the valve rod is equipped with the first spool for closing the water outlet；It is characterized in that being equipped with the sleeve being set in except valve rod, the inner ring cavity that the inner cavity of the valve body is divided into the outer ring cavity being connected with the water inlet and be connected with the water outlet by the sleeve in the valve body；The water hole of multiple connection the inner ring cavitys and the outer ring cavity is equipped at intervals on the sleeve；The water hole is located at the top of the water inlet；The valve body is equipped with flange on the inner wall above neighbouring water outlet, and the central part of the flange is equipped with current stabilization hole；The valve rod is additionally provided with the second spool for adjusting the water flow for flowing through the current stabilization hole at the position on first spool.
Description
Technical field
The present invention relates to a kind of water servomechanisms.
Background technology
Water servomechanism is usually applied to water heater, can be according to the hot water temperature that goes out of setting, hydraulic pressure, air pressure and water inlet
The variation of temperature automatically adjusts flow of inlet water, to automatic adjustment and constant water flow, really realizes water, gas dual regulation,
Ensure the precise constant of leaving water temperature；Solves suddenly cold and hot phenomenon when being discharged during solving；The four seasons are all up water outlet
Temperature is freely adjusted on a large scale from low temperature to high temperature.
CN200820167152.0 discloses one kind《Quantity servo device on electric heater》, include valve body and
Spool is provided with water inlet pipe and outlet pipe on valve body, and water flow meter is provided on water inlet pipe or outlet pipe and mating is gone out
Water flow sensor；Leaving water temperature sensors, also, one end of spool and step are provided on the hot water outlet pipe of electric heater
Stepper motor transmission is connected, and spool is made to be installed in valve body in a manner of it can be moved along the axial reciprocating of body cavity, outside spool
Surface has taper surface or cone tank, and interior shoulder, the gap between the outer surface of the spool and the interior shoulder of valve body are provided in valve body
As water stream channel.The utility model can ensure that leaving water temperature reaches the temperature of setting, in the case where hydraulic pressure changes,
Adjust automatically opening size reduces the fluctuating range of leaving water temperature.
But the quantity servo device flow directly impacts spool, when water pressure fluctuations are big, being easy to cause causes spool to be trembled
It is dynamic, and then orifice openings is caused to change, water flow variation is eventually led to, stability of flow is influenced.
Invention content
The technical problem to be solved by the present invention is to provide a kind of energy resistance big pressure oscillation for the present situation of the prior art
And good operating stability, avoid spool shake fluctuation resistant to pressure water servomechanism.
Technical solution is used by the present invention solves above-mentioned technical problem：The water servomechanism of the fluctuation resistant to pressure, packet
The valve rod of valve body and position in the inner is included, the valve body is equipped with the water outlet positioned at the water inlet of side wall and positioned at lower part；Servo
Motor is drivingly connected the valve rod, and the lower end position of the valve rod is equipped with the first spool for closing the water outlet；
It is characterized in that：
Be equipped in the valve body and be set in sleeve except valve rod, the sleeve by the inner cavity of the valve body be divided into
The outer ring cavity that the water inlet is connected and the inner ring cavity being connected with the water outlet；It is equipped at intervals on the sleeve more
The water hole of a connection the inner ring cavity and the outer ring cavity；The water hole is located at the top of the water inlet；
The valve body is equipped with flange on the inner wall above neighbouring water outlet, and the central part of the flange is equipped with current stabilization
Hole；
The valve rod is additionally provided at the position on first spool for adjusting the water for flowing through the current stabilization hole
Second spool of flow.
Can with water pressure fluctuations displacement the second valve core structure there are many, preferably, second spool may include limit
It limit grid on the sleeve lining, the valve pocket being slidably located on the valve rod under limit grid and contradicts in institute
State the elastic component between valve pocket and first spool；
Water chamber is formed between the valve pocket and the valve rod；At least two connections are equipped at intervals on the peripheral wall of the valve pocket
The conduction hole of the inner ring cavity and the water chamber.
Preferably, the lower ora terminalis of the valve pocket can also be with the flange of evagination, under the action of hydraulic pressure and elastic component, institute
It states the flange of valve pocket to change with the distance between the flange on the valve body, to adjust the aperture in the current stabilization hole.
Compared with prior art, water servomechanism provided by the present invention, the design of sleeve avoid flow and directly impact
Spool solves the adjusting spool jitter phenomenon caused by water impact；The design of second spool, can be corresponding with pressure oscillation
Even if the aperture in regulating flow-stabilizing hole, in the case where pressure oscillation is larger, still is able to ensure stable work to constant output flow
Condition.
Description of the drawings
Fig. 1 is the longitudinal sectional view of the embodiment of the present invention；
Fig. 2 is the stereoscopic schematic diagram of valve pocket in the embodiment of the present invention；
Fig. 3 is the stereoscopic schematic diagram of middle sleeve of the embodiment of the present invention；
Fig. 4 is the stereoscopic schematic diagram of decomposition texture of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figures 1 to 4, which includes：
Valve body 1 is the shell of entire taps, which is provided with water inlet 11 and water outlet 12, and water inlet 11 is arranged in valve
On the side wall of body, water outlet 12 is the port of valve body；It is equipped with flange 13 in the top of water outlet 12 on the inner wall of valve body 1, it is convex
The middle part of edge 13 is equipped with current stabilization hole 14；The present embodiment flange 13 is close to water outlet 12.
Valve rod 2 is arranged in valve body 1, connects servo motor (not shown), and the is driven by the driving of servo motor
One spool 21 moves up and down.
Sleeve 4, setting is in valve body 1 and is set in outside valve rod 2, and the inner cavity of valve body 1 is divided into and is connected with water inlet 11
Logical outer ring cavity 43 and the inner ring cavity 42 being connected with water outlet 12；Multiple connection inner ring cavitys are equipped at intervals on sleeve 4
42 and outer ring cavity 43 water hole 44；Also, each water hole 44 is respectively positioned on the top of water inlet 11.
First spool 21 is arranged at the lower end position of valve rod 2, for closing water outlet 12；First spool 21 can basis
Need to select it is in the prior art any one.
Second spool 22, is connected on valve rod 2, is located at the top of the first spool, by the position for changing the second spool 22
To adjust the size of the water flow via current stabilization hole 14；It includes the limit grid 221 limited on the inner wall of sleeve 4, limit
The lower section of grid 221 is equipped with valve pocket 222, valve pocket 222 is slidably located on valve rod 2, is equipped at intervals on the wall of valve pocket 222 multiple
It is connected to the conduction hole 224 of inner ring cavity 42 and water chamber 45；The lower ora terminalis of valve pocket 222 has evagination compatible with flange 13
Flange 225.Under the action of hydraulic pressure and elastic component 223, the distance between flange 225 and flange 13 change, to adjust
The aperture elastic component 223 in current stabilization hole contradicts between valve pocket 222 and the first spool 21, and elastic component 223 is spring in the present embodiment,
It is set on valve rod 2；Water chamber 45 is formed between valve pocket 222 and valve rod 2.
Under no external force operative condition, valve pocket 222 is contradicted on limit grid 221, is turned under the action of elastic component 223
The distance between side 225 and flange 13 are maximum, and in other words, the aperture in current stabilization hole 14 is maximum.
When work, servo motor driving stem rotates forward, and the first spool is driven to move up, and opens water outlet；First spool moves up,
Elastic component is squeezed, and current stabilization hole remains in maximum opening state；Flow enters outer ring cavity from water inlet, via each water hole
Into inner ring cavity, then enter water chamber 45 via each conduction hole, is flowed out from water outlet.
When hydraulic pressure increases, valve pocket is squeezed by hydraulic pressure, moves downward extruding elastic component, and valve pocket moves down, and current stabilization hole is opened
Degree reduces, accordingly even when pressure increases but flow area reduces, and flow remains unchanged, to the water outlet of constant water outlet
Flow；Conversely, when hydraulic pressure reduces, the power being applied on valve pocket reduces, and elastic component is upheld, and pushes valve pocket to move up, current stabilization hole is opened
Degree increases, accordingly even when pressure is small, but flow area is big, and flow remains unchanged.
Claims (3)
1. a kind of water servomechanism of fluctuation resistant to pressure, include the valve rod (2) of valve body (1) and position in the inner, on the valve body (1)
Equipped with positioned at side wall water inlet (11) and positioned at the water outlet (12) of lower part；Servo motor is drivingly connected the valve rod (2), institute
The lower end position of valve rod (2) is stated equipped with the first spool (21) for closing the water outlet (12)；
It is characterized in that：
It is equipped with the sleeve (4) being set in except valve rod (2) in the valve body (1), the sleeve (4) is by the valve body (1)
Inner cavity is divided into the outer ring cavity (43) being connected with the water inlet (11) and the inner ring being connected with the water outlet (12)
Cavity (42)；The water of multiple connection the inner ring cavitys (42) and the outer ring cavity (43) is equipped at intervals on the sleeve (4)
Hole (44)；The water hole (44) is located at the top of the water inlet (11)；
The valve body (1) is equipped with flange (13), the central portion of the flange (13) on the inner wall above neighbouring water outlet (12)
Position is equipped with current stabilization hole (14)；
The valve rod (2) is additionally provided at the position on first spool (21) and flows through the current stabilization hole for adjusting
(14) the second spool (22) of water flow.
2. the water servomechanism of fluctuation resistant to pressure according to claim 1, it is characterised in that the second spool (22) packet
Include the limit grid (221) limited on the sleeve (4) inner wall, be slidably located in the valve under limit grid (221)
The elastic component (223) of valve pocket (222) and conflict between the valve pocket (222) and first spool (21) on bar (2)；
Water chamber (45) is formed between the valve pocket (222) and the valve rod (2)；It is spaced and sets on the peripheral wall of the valve pocket (222)
There is the conduction hole (224) of at least two connections inner ring cavity (42) and the water chamber (45).
3. the water servomechanism of fluctuation resistant to pressure according to claim 2, it is characterised in that the lower end of the valve pocket (222)
Edge have evagination flange (225), under the action of hydraulic pressure and elastic component (223), the flange (225) of the valve pocket (222) with
The distance between flange (13) on the valve body (1) changes, to adjust the aperture in the current stabilization hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018546.5A CN106481857B (en) | 2016-11-18 | 2016-11-18 | The water servomechanism of fluctuation resistant to pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018546.5A CN106481857B (en) | 2016-11-18 | 2016-11-18 | The water servomechanism of fluctuation resistant to pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481857A CN106481857A (en) | 2017-03-08 |
| CN106481857B true CN106481857B (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611018546.5A Active CN106481857B (en) | 2016-11-18 | 2016-11-18 | The water servomechanism of fluctuation resistant to pressure |
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| Country | Link |
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| CN (1) | CN106481857B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253827B (en) * | 2020-09-29 | 2021-10-26 | 宁波方太厨具有限公司 | Water flow stabilizing valve and gas water heater using same |
| CN113623456B (en) * | 2021-07-29 | 2023-07-21 | 厦门市欧立通电子科技开发有限公司 | Electromagnetic valve and control method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3301060B2 (en) * | 1997-08-30 | 2002-07-15 | 株式会社三栄水栓製作所 | Pressure reducing valve |
| CN201170361Y (en) * | 2008-01-11 | 2008-12-24 | 广东万家乐燃气具有限公司 | Adjustable steady flow valve for water heater |
| CN201666401U (en) * | 2009-10-12 | 2010-12-08 | 浙江精华测控设备有限公司 | High-pressure constant-flow adjusting valve |
| CN102042686A (en) * | 2010-11-23 | 2011-05-04 | 宁波方太厨具有限公司 | Water pressure stabilizing device |
| CN202402740U (en) * | 2011-11-28 | 2012-08-29 | 广东万家乐燃气具有限公司 | Flow-limiting and flow-stabilizing adjusting valve |
| CN103335141A (en) * | 2012-12-16 | 2013-10-02 | 李耀强 | Faucet constant-current water outlet nozzle |
| CN105135020A (en) * | 2012-07-21 | 2015-12-09 | 中山市雅西环保科技有限公司 | Constant current device |
| CN206159586U (en) * | 2016-11-18 | 2017-05-10 | 宁波方太厨具有限公司 | Undulant water yield server is pressed to water -resistant |
-
2016
- 2016-11-18 CN CN201611018546.5A patent/CN106481857B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3301060B2 (en) * | 1997-08-30 | 2002-07-15 | 株式会社三栄水栓製作所 | Pressure reducing valve |
| CN201170361Y (en) * | 2008-01-11 | 2008-12-24 | 广东万家乐燃气具有限公司 | Adjustable steady flow valve for water heater |
| CN201666401U (en) * | 2009-10-12 | 2010-12-08 | 浙江精华测控设备有限公司 | High-pressure constant-flow adjusting valve |
| CN102042686A (en) * | 2010-11-23 | 2011-05-04 | 宁波方太厨具有限公司 | Water pressure stabilizing device |
| CN202402740U (en) * | 2011-11-28 | 2012-08-29 | 广东万家乐燃气具有限公司 | Flow-limiting and flow-stabilizing adjusting valve |
| CN105135020A (en) * | 2012-07-21 | 2015-12-09 | 中山市雅西环保科技有限公司 | Constant current device |
| CN103335141A (en) * | 2012-12-16 | 2013-10-02 | 李耀强 | Faucet constant-current water outlet nozzle |
| CN206159586U (en) * | 2016-11-18 | 2017-05-10 | 宁波方太厨具有限公司 | Undulant water yield server is pressed to water -resistant |
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| Publication number | Publication date |
|---|---|
| CN106481857A (en) | 2017-03-08 |
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