CN107255182A - The irrigation control valve of hydraulic control Opening pressure - Google Patents
The irrigation control valve of hydraulic control Opening pressure Download PDFInfo
- Publication number
- CN107255182A CN107255182A CN201710293482.8A CN201710293482A CN107255182A CN 107255182 A CN107255182 A CN 107255182A CN 201710293482 A CN201710293482 A CN 201710293482A CN 107255182 A CN107255182 A CN 107255182A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure
- water
- control
- valve core
- 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.)
- Pending
Links
- 230000002262 irrigation Effects 0.000 title abstract 3
- 238000003973 irrigation Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 206010011732 Cyst Diseases 0.000 abstract 1
- 208000031513 cyst Diseases 0.000 abstract 1
- 239000002775 capsule Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of irrigation control valve of hydraulic control Opening pressure, for water conservancy control, including：Valve body；Valve element；Hydraulic pressure control component.Due to being provided with hydraulic pressure control component in the valve body of the irrigation control valve of the hydraulic control Opening pressure of the present invention, the opening pressure of the corresponding water of valve element can be controlled by setting the coefficient of elasticity and decrement of spring.And decrement can be changed by rotating adjusting nut to change predetermined pressure, so as to adjust the opening pressure of valve element.Can be by being passed through press water to control mouth, press water pushes against valve element after entering control chamber by cyst wall, and pushes against valve element together with spring, so that valve element is resisted against on stopper section with certain pressure, so as to control the Opening pressure of valve element.
Description
Technical Field
The invention relates to the technical field of water conservancy control, in particular to a water conservancy control valve with hydraulically-controlled opening pressure, which is particularly suitable for controlling water flow and water pressure of river dams.
Background
The hydraulic control valve for hydraulically controlling the opening pressure is a water pressure control valve, and consists of a main valve and a guide pipe, a pilot valve, a needle valve, a ball valve, a pressure gauge and the like which are attached to the main valve. The remote control ball valve, the pressure reducing valve, the slow-closing check valve, the flow control valve, the pressure relief valve, the hydraulic power electric control valve, the water pump control valve and the like can be developed according to different use purposes, functions and places.
A filter is arranged in front of a hydraulic control valve for hydraulically controlling the opening pressure, and the requirement of pollution discharge is met. The valve of this type should be generally installed horizontally in the pipeline. The hydraulic control valve with hydraulic control opening pressure is a self-lubricating valve body using water, and does not need additional engine oil for lubrication.
The prior art hydraulic control valves that pilot the cracking pressure are typically operated manually or by a motor to open the valve spool, which adds complexity to the operation.
Therefore, it is necessary to provide a hydraulic control valve that controls pilot cracking pressure for opening or closing a spool according to water pressure.
Disclosure of Invention
In view of the above technical problems in the prior art, an embodiment of the present invention provides a hydraulic control valve for hydraulically controlling an opening pressure.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
a hydraulic control valve for hydraulically controlling opening pressure, comprising:
the valve body is provided with a water inlet and a water outlet, a stopping part is formed inside the valve body, and a flow guide hole for communicating the water inlet and the water outlet is formed in the stopping part;
the valve core blocks the diversion hole by moving to cut off the water inlet and the water outlet, or moves away from the diversion hole to conduct the water inlet and the water outlet;
the water pressure control assembly is used for plugging the flow guide hole by the valve core with a certain pretightening force, so that when the pressure difference between the water pressure of the water inlet and the water outlet is greater than a preset pressure, the water entering the water inlet pushes the valve core to be far away from the flow guide hole, and the flow guide hole is opened;
the hydraulic control assembly comprises a valve rod and a spring which is sleeved on the valve rod and used for pushing the valve core so that the valve core is pushed against the stop part to block the flow guide hole, and the preset pressure is equal to the thrust of the spring to the valve core; wherein,
the valve rod extends into the valve core from one end of the valve core and extends out of the other end of the valve core, an adjusting nut is sleeved on the part of the valve rod extending out of the valve core, the compression amount of the spring is adjusted by rotating the adjusting nut, so that the thrust of the spring to the valve core is adjusted, the abutting force of the valve core to the stopping part is adjusted, and the pressure difference between the water pressure of the water inlet and the water pressure of the water outlet for opening the valve core is adjusted;
the sealing cover is buckled on the valve body and surrounds a control cavity with the valve body, a bag wall is arranged in the control cavity and used for sealing the control cavity, the bag wall is abutted to the valve core, a control port communicated with the control cavity is further formed in the sealing cover, and water with certain pressure enters the control cavity to be pushed against the valve core through the bag wall so as to control the opening pressure of the valve core.
Preferably, the sealing cover is formed with an insertion column coaxial with the valve rod, one end of the spring is sleeved on the insertion column and abuts against the sealing cover, and the other end of the spring abuts against the valve core.
Preferably, the insert column is further provided with an insertion hole, and the free end of the valve rod extends into the insertion hole and moves in the insertion hole.
Preferably, a first flange plate is formed at the water inlet, and a second flange plate is formed at the water outlet.
Preferably, a sealing ring is formed at the diversion hole, and the sealing ring is used for sealing the diversion hole when the valve core abuts against the stopping part.
Preferably, the top of the sealing cover is also provided with a lifting ring of a hydraulic control valve for adjusting and transporting the hydraulic control opening pressure.
Preferably, the valve body is provided with a pressure relief hole, the pressure relief hole is provided with a plug, and the pressure relief hole is used for unloading pressure water entering the valve body from the water inlet.
Compared with the prior art, the hydraulic control opening pressure water conservancy control valve has the beneficial effects that: because the valve body of the hydraulic control valve for hydraulically controlling the opening pressure is internally provided with the water pressure control assembly, the water pressure control assembly is used for controlling the movement of the valve core so as to open and close the valve core, and the mode of controlling the valve core by the water pressure control assembly is as follows: when the water pressure of water inlet is greater than the certain numerical value of water pressure of delivery port, the water of water inlet just can be opened the case to can set for the opening pressure of case through water pressure control assembly, when the pressure of water inlet reaches the pressure that need open the case, thereby the case is opened and is made water inlet and delivery port intercommunication, when the pressure of water inlet does not reach the pressure that needs open, case shutoff water conservancy diversion passageway all the time, water inlet and delivery port are cut by the case, thereby realized that the case can open and close according to water pressure is automatic.
The opening pressure of the water corresponding to the valve core can be controlled by setting the elastic coefficient and the compression amount of the spring. And the opening pressure of the valve element can be adjusted by changing the predetermined pressure by changing the amount of compression by rotating the adjusting nut. The pressure water can be introduced into the control port, and the pressure water enters the control chamber and pushes the valve core through the bag wall, and pushes the valve core together with the spring, so that the valve core is pushed against the stopping part with a certain pressure, and the opening pressure of the valve core is controlled.
Drawings
FIG. 1 is a front view of a hydraulic control valve that hydraulically controls cracking pressure provided by an embodiment of the present invention.
Fig. 2 is a right side view of a hydraulic control valve that hydraulically controls cracking pressure provided by an embodiment of the present invention.
In the figure:
10-a valve body; 11-a stop; 12-diversion holes; 13-a water inlet; 14-a water outlet; 15-a first flange; 16-a second flange; 20-a valve core; 21-a valve stem; 30-sealing the cover; 31-insert column; 32-a jack; 40-a spring; 50-sealing ring; 60-hoisting rings; 70-adjusting the nut; 80-a control chamber; 90-the capsule wall; 91-control port.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, an embodiment of the present invention discloses a hydraulic control valve with hydraulically controlled opening pressure, which is used for hydraulic control, and is particularly suitable for controlling water flow and water pressure in a dam, and comprises: the valve comprises a valve body 10, a valve core 20, a water pressure control assembly and a sealing cover; specifically, the valve body 10 has a water inlet 13 and a water outlet 14, a stopper 11 is formed inside the valve body 10, and a diversion hole 12 for communicating the water inlet 13 with the water outlet 14 is formed on the stopper 11; the valve core 20 blocks the diversion hole 12 by moving to cut off the water inlet 13 from the water outlet 14, or moves away from the diversion hole 12 to communicate the water inlet 13 with the water outlet 14; the water pressure control assembly is used for enabling the valve core 20 to block the diversion hole 12 with a certain pretightening force, so that when the pressure difference between the water pressure of the water inlet 13 and the water outlet 14 is greater than a preset pressure, the water entering the water inlet 13 pushes the valve core 20 to be far away from the diversion hole 12, and the diversion hole 12 is opened.
As can be seen from the above description, since the valve body 10 of the hydraulic control valve for pilot-controlling the cracking pressure according to the present invention is provided with a hydraulic control assembly for controlling the movement of the valve element 20 to open and close the valve element 20, the hydraulic control assembly controls the valve element 20 in such a manner that: when the water pressure of water inlet 13 is greater than the water pressure certain numerical value of delivery port 14, the water of water inlet 13 just can open case 20, thereby can set for the opening pressure of case 20 through the water pressure control subassembly, when the pressure of water inlet 13 reaches the pressure that needs open case 20, thereby case 20 opens and makes water inlet 13 and delivery port 14 intercommunication, when the pressure of water inlet 13 does not reach the pressure that needs open, case 20 blocks off water conservancy diversion passageway all the time, water inlet 13 is cuted by case 20 with delivery port 14, thereby realized that case 20 can open and close according to water pressure is automatic.
Specifically, the hydraulic control assembly comprises a valve rod 21 and a spring 40 sleeved on the valve rod 21 and used for pushing against the valve core 20 so as to enable the valve core 20 to abut against the stopping portion 11 to block the diversion hole 12, and the preset pressure is equal to the pushing force of the spring 40 on the valve core 20. The valve rod 21 extends into one end of the valve core 20 and extends out of the other end of the valve core 20, an adjusting nut 70 is sleeved on a part of the valve rod 21 extending out of the valve core 20, the adjusting nut 70 is rotated to adjust the compression amount of the spring 40, so as to adjust the thrust of the spring 40 on the valve core 20, and adjust the abutting force of the valve core 20 on the stop portion 11, so as to adjust the pressure difference between the water pressure of the water inlet and the water pressure of the water outlet for opening the valve core 20.
In this manner, the opening pressure of the water corresponding to the valve element 20 can be controlled by setting the elastic coefficient and the compression amount of the spring 40. And the opening pressure of the valve spool 20 can be adjusted by changing the predetermined pressure by changing the compression amount by rotating the adjustment nut 70.
Specifically, the sealing cover 30 is fastened on the valve body 10 and encloses a control chamber 80 with the valve body 10, a capsule wall 90 is arranged in the control chamber 80, the capsule wall 90 is used for sealing the control chamber 80, the capsule wall 90 abuts against the valve core 20, the sealing cover 30 is further provided with a control port 91 communicated with the control chamber 80, and water with certain pressure enters the control chamber 80 to push against the valve core 20 through the capsule wall 90 so as to control the opening pressure of the valve core 20.
Thus, by introducing the pressure water into the control port 91, the pressure water enters the control chamber 80 and pushes the valve element 20 through the bag wall 90, and pushes the valve element 20 together with the spring 40, so that the valve element 20 abuts against the stopper 11 with a certain pressure, thereby controlling the opening pressure of the valve element 20.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, the sealing cap 30 is formed with a plug 31 coaxial with the valve rod 21, one end of the spring 40 is sleeved on the plug 31 and abuts against the sealing cap 30, and the other end of the spring 40 abuts against the valve core 20.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, the insertion column 31 is further provided with an insertion hole 32, and the free end of the valve stem 21 extends into the insertion hole 32 and moves in the insertion hole 32.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, a first flange 15 is formed at the water inlet 13, and a second flange 16 is formed at the water outlet 14.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, a sealing ring 50 is formed at the pilot hole 12, and the sealing ring 50 is used for closing the pilot hole 12 when the valve core 20 abuts against the stopper 11.
In a preferred embodiment of the present invention, as shown in fig. 1 and 2, a lifting ring 60 for adjusting and transporting a hydraulic control valve of the hydraulic control opening pressure is further provided on the top of the cover 30.
In a preferred embodiment of the present invention, as shown in fig. 1 and fig. 2, a pressure relief hole is formed in the valve body 10, and a plug is disposed on the pressure relief hole, and the pressure relief hole is used for unloading pressure water entering the valve body 10 from the water inlet 13.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (7)
1. A hydraulic control valve of hydraulic opening pressure for hydraulic control, its characterized in that includes:
the valve body is provided with a water inlet and a water outlet, a stopping part is formed inside the valve body, and a flow guide hole for communicating the water inlet and the water outlet is formed in the stopping part;
the valve core blocks the diversion hole by moving to cut off the water inlet and the water outlet, or moves away from the diversion hole to conduct the water inlet and the water outlet;
the water pressure control assembly is used for plugging the flow guide hole by the valve core with a certain pretightening force, so that when the pressure difference between the water pressure of the water inlet and the water outlet is greater than a preset pressure, the water entering the water inlet pushes the valve core to be far away from the flow guide hole, and the flow guide hole is opened;
the hydraulic control assembly comprises a valve rod and a spring which is sleeved on the valve rod and used for pushing the valve core so that the valve core is pushed against the stop part to block the flow guide hole, and the preset pressure is equal to the thrust of the spring to the valve core; wherein,
the valve rod extends into the valve core from one end of the valve core and extends out of the other end of the valve core, an adjusting nut is sleeved on the part of the valve rod extending out of the valve core, the compression amount of the spring is adjusted by rotating the adjusting nut, so that the thrust of the spring to the valve core is adjusted, the abutting force of the valve core to the stopping part is adjusted, and the pressure difference between the water pressure of the water inlet and the water pressure of the water outlet for opening the valve core is adjusted;
the sealing cover is buckled on the valve body and surrounds a control cavity with the valve body, a bag wall is arranged in the control cavity and used for sealing the control cavity, the bag wall is abutted to the valve core, a control port communicated with the control cavity is further formed in the sealing cover, and water with certain pressure enters the control cavity to be pushed against the valve core through the bag wall so as to control the opening pressure of the valve core.
2. The hydraulic control opening pressure water conservancy control valve according to claim 1, wherein the closing cap is formed with an insertion column coaxial with the valve rod, one end of the spring is sleeved on the insertion column and abuts against the closing cap, and the other end of the spring abuts against the valve core.
3. The hydraulic control opening pressure water control valve as recited in claim 2, wherein the post further defines a socket into which the free end of the stem extends and moves.
4. The hydraulic control opening pressure water control valve as recited in claim 1, wherein a first flange is formed at the water inlet and a second flange is formed at the water outlet.
5. The hydraulic control opening pressure water control valve as claimed in claim 1, wherein a sealing ring is formed at the pilot hole for closing the pilot hole when the spool abuts against the stopper.
6. The hydraulic control opening pressure hydraulic control valve as recited in claim 2, wherein a lifting ring for adjusting and transporting the hydraulic control opening pressure hydraulic control valve is further provided on the top of the cover.
7. The hydraulic control opening pressure water conservancy control valve of claim 1, wherein the valve body is provided with a pressure relief hole, the pressure relief hole is provided with a plug, and the pressure relief hole is used for unloading pressure water entering the valve body from the water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293482.8A CN107255182A (en) | 2017-04-28 | 2017-04-28 | The irrigation control valve of hydraulic control Opening pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710293482.8A CN107255182A (en) | 2017-04-28 | 2017-04-28 | The irrigation control valve of hydraulic control Opening pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107255182A true CN107255182A (en) | 2017-10-17 |
Family
ID=60027332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710293482.8A Pending CN107255182A (en) | 2017-04-28 | 2017-04-28 | The irrigation control valve of hydraulic control Opening pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107255182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278397A (en) * | 2018-03-07 | 2018-07-13 | 高继升 | A kind of bottom flange Split type electrical flow valve setting flow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386796Y (en) * | 2009-04-24 | 2010-01-20 | 永嘉县良盛给排水阀门有限公司 | Membrane multi-spraying hole pressure-reducing valve |
| CN203500493U (en) * | 2013-10-21 | 2014-03-26 | 温州市中宝阀门制造有限公司 | Hydraulic automatic control valve |
| CN203500572U (en) * | 2013-10-21 | 2014-03-26 | 温州市中宝阀门制造有限公司 | Hydraulic electric control valve |
| CN203927018U (en) * | 2014-06-25 | 2014-11-05 | 温州市中宝阀门制造有限公司 | A kind of electric remote control float valve |
| CN106321913A (en) * | 2015-06-23 | 2017-01-11 | 张家港市舜辰机械有限公司 | A pressure reducing valve system |
-
2017
- 2017-04-28 CN CN201710293482.8A patent/CN107255182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386796Y (en) * | 2009-04-24 | 2010-01-20 | 永嘉县良盛给排水阀门有限公司 | Membrane multi-spraying hole pressure-reducing valve |
| CN203500493U (en) * | 2013-10-21 | 2014-03-26 | 温州市中宝阀门制造有限公司 | Hydraulic automatic control valve |
| CN203500572U (en) * | 2013-10-21 | 2014-03-26 | 温州市中宝阀门制造有限公司 | Hydraulic electric control valve |
| CN203927018U (en) * | 2014-06-25 | 2014-11-05 | 温州市中宝阀门制造有限公司 | A kind of electric remote control float valve |
| CN106321913A (en) * | 2015-06-23 | 2017-01-11 | 张家港市舜辰机械有限公司 | A pressure reducing valve system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278397A (en) * | 2018-03-07 | 2018-07-13 | 高继升 | A kind of bottom flange Split type electrical flow valve setting flow |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |