CN211501785U - Self-controlled flow regulating valve - Google Patents
Self-controlled flow regulating valve Download PDFInfo
- Publication number
- CN211501785U CN211501785U CN201921983125.5U CN201921983125U CN211501785U CN 211501785 U CN211501785 U CN 211501785U CN 201921983125 U CN201921983125 U CN 201921983125U CN 211501785 U CN211501785 U CN 211501785U
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- valve body
- outlet
- self
- 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.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
- Sliding Valves (AREA)
Abstract
The utility model discloses an automatic control formula flow regulating valve, including the valve body, locate the piston adjusting device in the valve body, its characterized in that: the end part of the piston adjusting device is provided with an anti-cavitation device which drives an automatic control device of the piston adjusting device; the cavitation erosion prevention device comprises a valve cover which is butted with the outlet of the valve body, and a throttling ring which is arranged in the valve cover and connected with a piston, wherein a plurality of throttling holes which are symmetrical by the axis are arranged on the throttling ring, and the throttling holes penetrate through and are communicated with the inside of the throttling ring; the automatic control device comprises a balance rod which is connected with the valve rod and has the same rotating direction with the valve rod, a dead weight ball which is arranged at one end of the balance rod, a piston cylinder which is arranged at the other end of the balance rod and a control valve which is connected with the piston cylinder. The utility model discloses realize self medium motion and adjust the flow regulating valve, the energy saving, and effectively cut the cavitation erosion, the protection flow regulating valve.
Description
Technical Field
The utility model belongs to the technical field of the valve body, especially, relate to a self-control formula flow regulating valve.
Background
The flow regulating valve is widely applied to water plants and power plants for controlling the flow of fluid, but when the fluid flows through the flow regulating valve, a small part of air is mixed into the fluid due to the change of the pressure of the fluid, and when the fluid mixed with air flows through the flow regulating valve, the fluid mixed with air impacts the valve body of the flow regulating valve due to the action of high pressure, so that the valve body of the flow regulating valve is subjected to cavitation erosion.
Patent No. CN201820129794.5 among the prior art utility model discloses a piston flow regulating valve, anti-cavitation device includes a device main part and a accuse flow portion, wherein anti-cavitation device is set up in piston flow regulating valve, wherein the device main part forms many throttle channels, wherein accuse flow portion includes a choke valve and a valve body control, wherein the valve body control is drivably connected in drive arrangement. The controller correspondingly drives the driving device after receiving the signal to further drive the valve body control part connected to the driving device to control the reduction of the cross-sectional area of the throttling channel, so that the fluid is divided into a plurality of high-pressure fluids by the throttling channel, and the high-pressure high-speed fluid rapidly flows out of the outlet, and the gas mixed in the fluid is prevented from causing the piston flow regulating valve with the anti-cavitation device to be cavitated due to high pressure. Because the valve body control part is in a conical structure and needs to keep a relatively accurate position relation with the throttling channel, the required precision of the installation position is higher, the deviation can not occur in the motion process of the connecting rod, and otherwise, the parts are easily damaged. The driving device needs to be externally connected with an energy source to control output, and once the externally connected energy source equipment is in fault, the flow regulating valve cannot continuously realize the regulating function.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem, and provide a self-control formula flow regulating valve to realize self medium motion and adjust the flow regulating valve, the energy saving, and effectively cut the cavitation erosion, the protection flow regulating valve. In order to achieve the above purpose, the utility model discloses technical scheme as follows:
the self-control flow regulating valve comprises a valve body and a piston adjusting device arranged in the valve body, wherein the end part of the piston adjusting device is provided with an anti-cavitation device and a self-control device for driving the piston adjusting device;
the cavitation erosion prevention device comprises a valve cover which is butted with the outlet of the valve body, and a throttling ring which is arranged in the valve cover and connected with a piston, wherein a plurality of throttling holes which are symmetrical by the axis are arranged on the throttling ring, and the throttling holes penetrate through and are communicated with the inside of the throttling ring;
the automatic control device comprises a balance rod which is connected with the valve rod and has the same rotating direction with the valve rod, a dead weight ball which is arranged at one end of the balance rod, a piston cylinder which is arranged at the other end of the balance rod and a control valve which is connected with the piston cylinder; the control valve is used for sensing the fluid pressure at the inlet end and the outlet end of the valve body.
Specifically, one end of the valve body is provided with an inlet, and the other end of the valve body is provided with an outlet.
Specifically, the piston adjusting device comprises a fixed end cover arranged in the valve body, a piston connected with an end part of the end cover and movably butted with the outlet, a rotary valve rod arranged in the end cover, a crank connected with the valve rod, and a connecting rod connected between the crank and the piston.
In particular, the restrictor ring follows the piston on both sides of the outlet and does not completely disengage from the outlet position.
Specifically, a sealing ring is arranged at the joint of the circumferential direction of the valve cover and the valve body, and the valve cover and the valve body are fixed through a bolt and nut assembly.
Specifically, the control valve is connected with the piston cylinder through a hydraulic pipe.
Specifically, the throttle hole is of a long hole structure with arc tips on two sides.
Compared with the prior art, the utility model discloses self-control formula flow regulating valve's beneficial effect mainly reflects:
the control valve senses the pressure change of fluid at the outlet and the inlet of the valve body, the strokes of the control valve and the piston cylinder change along with the pressure difference, when the pressure difference is reduced, the piston cylinder acts, and the flow rate of the piston close to the outlet is reduced; when the pressure difference is increased, the piston cylinder acts, the piston is far away from the outlet to increase the flow, and the piston is matched with the throttling ring to realize high-efficiency adjustment; the adjusting function is realized through the piston cylinder and the dead weight ball, external energy sources are not needed, the maintenance is convenient, and the design is optimized; the special structure of the throttling ring can effectively eliminate the cavitation erosion phenomenon.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
the figures in the drawings represent:
1 valve body, 11 inlets, 12 outlets, 2 end covers, 21 pistons, 22 valve rods, 23 cranks, 24 connecting rods, 3 valve covers, 31 throttling rings, 32 throttling holes, 4 sealing rings, 5 balance rods, 51 self-weight balls, 52 piston cylinders, 53 control valves and 54 hydraulic pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention.
Example (b):
referring to fig. 1, the present embodiment is an automatic control type flow regulating valve, which includes a valve body 1, a piston adjusting device disposed in the valve body 1, an anti-cavitation device disposed at an end of the piston adjusting device, and an automatic control device for driving the piston adjusting device;
one end of the valve body 1 is provided with an inlet 11, the other end is provided with an outlet 12, and the fluid in the valve body 1 flows in from the inlet 11 and flows out from the outlet 12.
The piston adjusting device comprises a fixed end cover 2 arranged in the valve body 1, a piston 21 connected with the end part of the end cover 2 and movably butted with the outlet 12, a rotary valve rod 22 arranged in the end cover 2, a crank 23 connected with the valve rod 22, and a connecting rod 24 connected between the crank 23 and the piston 21.
The valve rod 22 is rotated to drive the crank 23 and the connecting rod 24, the connecting rod 24 drives the piston 21 to reciprocate between the inlet 11 and the outlet 12 in the end cover 2, and the area of the outlet 12 is shielded by adjusting the piston 21, so that the flow rate of the fluid is adjusted.
The anti-cavitation device comprises a valve cover 3 butted with the outlet 12 of the valve body 1 and a throttling ring 31 arranged in the valve cover 3 and connected with the piston 21; the throttle ring 31 follows the piston 21 on both sides of the outlet and does not completely leave the outlet 12 position.
The throttle ring 31 is provided with a plurality of axially symmetrical throttle holes 32, the throttle holes 32 penetrate and communicate with the inside of the throttle ring 31, and the throttle holes 32 have a long hole structure with arc tips on both sides. The fluids in a group of symmetrical throttle holes 32 correspondingly arranged on the throttle ring 31 collide with each other, and the impact force is counteracted at the inner center position of the throttle ring 31, so that the cavitation phenomenon is effectively eliminated.
Along with the farther the position of the piston 21 is away from the outlet 12, the space between the piston 21 and the inner wall of the valve body 1 is increased, the fluid flow rate at the position of the outlet 12 is increased, the area of the adaptive throttle ring 31 which is separated from the outlet 12 is larger, on the contrary, the fluid flow rate of the throttle ring 31 which is retracted into the outlet of the valve cover 3 is reduced, the throttle hole 32 and the piston 21 mutually assist in adjusting the fluid flow rate, and the adjustment of the fluid pressure difference is quickly realized.
The connection of the circumference of the valve cover 3 and the valve body 1 is provided with a sealing ring 4, and the valve cover 3 and the valve body 1 are fixed by a bolt and nut assembly.
The automatic control device comprises a balance rod 5 which is connected with the valve rod 22 and has the same rotating direction with the valve rod, a self-weight ball 51 which is arranged at one end of the balance rod 5, a piston cylinder 52 which is arranged at the other end of the balance rod 5 and a control valve 53 which is connected with the piston cylinder 52; the control valve 53 is used for sensing the fluid pressure at the inlet 11 end and the outlet 12 end of the valve body 1, and the control valve 53 is connected with the piston cylinder 52 through a hydraulic pipe 54 so as to control the movement of the piston cylinder 52.
The piston cylinder 52, the control valve 53, the balance rod 5 and the gravity ball 51 constitute a balance mechanism, and the self-weight generation torque of the gravity ball 51 and the output torque of the piston cylinder 52 and the torque of the balance rod 5 form a balance torque.
When the embodiment is applied, the control valve 53 senses the fluid pressure change of the outlet 12 and the inlet 11 of the valve body 1, the strokes of the control valve 53 and the piston cylinder 52 change along with the pressure difference, when the pressure difference is reduced, the piston cylinder 52 acts, and the flow rate of the piston 21 is reduced close to the outlet 12; when the pressure difference is increased, the piston cylinder 52 acts, the piston 21 is far away from the outlet 12, the flow rate is increased, and the piston 21 is matched with the throttling ring 31 to realize high-efficiency adjustment; the adjusting function is realized through the piston cylinder 52 and the dead weight ball 51, external energy sources are not needed, the maintenance is convenient, and the design is optimized; the special structure of the throttle ring 31 can effectively eliminate the cavitation erosion phenomenon.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. Self-control formula flow control valve includes the valve body, locates the piston adjusting device in the valve body, its characterized in that: the end part of the piston adjusting device is provided with an anti-cavitation device which drives an automatic control device of the piston adjusting device;
the cavitation erosion prevention device comprises a valve cover which is butted with the outlet of the valve body, and a throttling ring which is arranged in the valve cover and connected with a piston, wherein a plurality of throttling holes which are symmetrical by the axis are arranged on the throttling ring, and the throttling holes penetrate through and are communicated with the inside of the throttling ring;
the automatic control device comprises a balance rod which is connected with the valve rod and has the same rotating direction with the valve rod, a dead weight ball which is arranged at one end of the balance rod, a piston cylinder which is arranged at the other end of the balance rod and a control valve which is connected with the piston cylinder; the control valve is used for sensing the fluid pressure at the inlet end and the outlet end of the valve body.
2. The self-regulating flow-regulating valve of claim 1, wherein: one end of the valve body is provided with an inlet, and the other end of the valve body is provided with an outlet.
3. The self-regulating flow-regulating valve of claim 2, wherein: the piston adjusting device comprises a fixed end cover arranged in the valve body, a piston connected with an end part of the end cover and movably butted with the outlet, a rotary valve rod arranged in the end cover, a crank connected with the valve rod, and a connecting rod connected between the crank and the piston.
4. The self-regulating flow-regulating valve of claim 3, wherein: the restrictor ring follows the piston on both sides of the outlet and does not completely disengage from the outlet position.
5. The self-regulating flow-regulating valve of claim 1, wherein: the valve cover is characterized in that a sealing ring is arranged at the connection position of the circumferential direction of the valve cover and the valve body, and the valve cover and the valve body are fixed through a bolt and nut assembly.
6. The self-regulating flow-regulating valve of claim 1, wherein: the control valve is connected with the piston cylinder through a hydraulic pipe.
7. The self-regulating flow-regulating valve of claim 1, wherein: the throttling hole is of a long-strip hole structure with arc tips on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921983125.5U CN211501785U (en) | 2019-11-16 | 2019-11-16 | Self-controlled flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921983125.5U CN211501785U (en) | 2019-11-16 | 2019-11-16 | Self-controlled flow regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501785U true CN211501785U (en) | 2020-09-15 |
Family
ID=72409830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921983125.5U Active CN211501785U (en) | 2019-11-16 | 2019-11-16 | Self-controlled flow regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501785U (en) |
-
2019
- 2019-11-16 CN CN201921983125.5U patent/CN211501785U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110906035A (en) | Self-controlled flow regulating valve | |
| CN102410194A (en) | Flow regulating device of plunger reciprocating pump | |
| CN107061834B (en) | Built-in driving axial-flow type regulating valve | |
| CN111894940B (en) | Mechanical oil cylinder structure capable of automatically reciprocating | |
| CN206738024U (en) | The adjustable convergence diffused spout device of one kind | |
| CN106763005A (en) | A kind of rotation direct drive Electric hydraulic pressure servo valve of cam-type | |
| CN105736179B (en) | A kind of solid rocket ramjet gas flow regulating device | |
| CN211501785U (en) | Self-controlled flow regulating valve | |
| CN110566674B (en) | Novel pressure regulating amortization valve | |
| CN213451113U (en) | Multi-output hydraulic driving device | |
| CN206972654U (en) | For improving the hydraulic cylinder of sealing property | |
| CN116066445A (en) | Balance type leakless low friction hydraulic cylinder | |
| CN102418645A (en) | Single-cavity self-control nozzle component for hydraulic power of impulse turbine | |
| CN217128989U (en) | Hydraulic linkage type grouting machine | |
| CN211573451U (en) | Flow guide type double-drive turbine hydraulic oscillator | |
| CN203879832U (en) | Pure water hydraulic throttle valve | |
| CN106678374A (en) | Low-water-resistance hydraulic valve | |
| CN202348635U (en) | Flow regulation device for plunger reciprocation pump | |
| CN206874848U (en) | A kind of novel condensation water recycles regulating valve | |
| CN209212992U (en) | A kind of water conservancy autocontrol valve | |
| CN105089962A (en) | Underwater single-plunger type water hydraulic drive pump | |
| CN205001136U (en) | Single plunger type water hydraulic drive pump under water | |
| CN205001280U (en) | Oval hydro -cylinder of numerical control | |
| CN104776061A (en) | Fixed guide vane body inlet angle adjustable axial flow pump | |
| CN213299015U (en) | Throttle regulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 988 Yuexiu Road, Lili Town, FENHU Economic Development Zone, Wujiang, Suzhou, Jiangsu Province Patentee after: Suzhou Antway Industrial Intelligent Technology Co.,Ltd. Address before: 215000 988 Yuexiu Road, Lili Town, FENHU Economic Development Zone, Wujiang, Suzhou, Jiangsu Province Patentee before: SUZHOU ANTIWEAR VALVES Co.,Ltd. |