CN210069116U - Throttling device capable of meeting high pressure difference small flow and low pressure difference large flow - Google Patents
Throttling device capable of meeting high pressure difference small flow and low pressure difference large flow Download PDFInfo
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- CN210069116U CN210069116U CN201920995346.8U CN201920995346U CN210069116U CN 210069116 U CN210069116 U CN 210069116U CN 201920995346 U CN201920995346 U CN 201920995346U CN 210069116 U CN210069116 U CN 210069116U
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- upper sleeve
- flow
- throttle plate
- pressure difference
- throttling
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Abstract
The utility model discloses a throttling device which can satisfy high differential pressure small flow and low differential pressure large flow, which is characterized in that the throttling device comprises an upper sleeve, a valve core, a valve rod, a throttle plate, a lower valve seat, a taper pin and a socket head cap screw; the valve rod is connected with the valve core in a welding mode, the valve core is placed in the upper sleeve, and the upper sleeve, the throttle plate and the lower valve seat are provided with a plurality of pin holes and screw holes; the throttle plate is arranged between the upper sleeve and the lower valve seat, and the upper sleeve, the throttle plate and the lower valve seat are fixedly connected through a taper pin and an inner hexagon screw. The utility model has simple structure and convenient assembly and disassembly; by adopting a valve structure of the sleeve, the throttling of the sleeve is specially designed, and the throttling plate realizes multi-stage pressure reduction through the design of a labyrinth disc; the bottom of the sleeve is provided with a plurality of small holes, and the throttling mode of the small holes is adopted to realize the transition connection of large flow control and flow.
Description
Technical Field
The utility model relates to a flow control of valve specifically indicates a satisfy the big-traffic throttling arrangement of high pressure differential low discharge and low pressure differential.
Background
At present, the valve is limited by pipeline arrangement, valve structure characteristics, valve opening and closing time and the like in the valve industry, the large adjustable ratio of the valve is difficult to realize, the traditional adjustable ratio is generally 30 or 50, along with the improvement of the requirement of modern industry on system design, the design requirement of the valve is also improved, the function which is realized by a plurality of valves is required to be realized, one valve is required to realize at present, and the conditions of small high pressure difference flow and large low pressure difference flow are one of the conditions. To meet the requirements of such flow regulation. Therefore, a throttle device satisfying a high differential pressure small flow rate and a low differential pressure large flow rate is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem and providing a satisfy the big-traffic throttling arrangement of the poor little flow of high pressure and low pressure.
In order to achieve the above purpose, the utility model provides a following technical scheme: a throttling device meeting high pressure difference small flow and low pressure difference large flow is characterized by comprising an upper sleeve, a valve core, a valve rod, a throttling plate, a lower valve seat, a taper pin and an inner hexagon screw; the valve rod is connected with the valve core in a welding mode, the valve core is placed in the upper sleeve, and the upper sleeve, the throttle plate and the lower valve seat are provided with a plurality of pin holes and screw holes; the throttle plate is arranged between the upper sleeve and the lower valve seat, and the upper sleeve, the throttle plate and the lower valve seat are fixedly connected through a taper pin and an inner hexagon screw.
Further preferably, the bottom of the upper sleeve is provided with a plurality of small holes.
Preferably, the throttle plate is provided with a small flow passage and a large flow passage, and the small flow passage and the large flow passage are alternately arranged.
The utility model has the advantages that: the structure is simple, and the disassembly and the assembly are convenient; by adopting a valve structure of the sleeve, the throttling of the sleeve is specially designed, and the throttling plate realizes multi-stage pressure reduction through the design of a labyrinth disc; the bottom of the sleeve is provided with a plurality of small holes, and the throttling mode of the small holes is adopted to realize the transition connection of large flow control and flow.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a middle throttle plate of the present invention;
FIG. 3 is a structural diagram of the state of the small hole in the utility model;
FIG. 4 is a schematic view of the small flow state of the present invention in use;
fig. 5 is a schematic view of the large flow rate state of the utility model in use.
Illustration of the drawings: 1. an upper sleeve; 2. a valve core; 3. a valve stem; 4. a throttle plate; 5. a lower valve seat; 6. a taper pin; 7. a socket head cap screw; 8. a pin hole; 9. a screw hole; 10. a small hole; 11. a small flow channel; 12. and a large flow channel.
Detailed Description
The throttling device of the present invention satisfying the low differential pressure and the high differential pressure is further described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the throttling device of the present embodiment satisfying a high differential pressure small flow rate and a low differential pressure large flow rate is characterized by comprising an upper sleeve 1, a valve core 2, a valve rod 3, a throttle plate 4, a lower valve seat 5, a taper pin 6 and an inner hexagon screw 7; the valve rod 3 is connected with the valve core 2 through welding, the valve core 2 is placed in the upper sleeve 1, and a plurality of pin holes 8 and screw holes 9 are formed in the upper sleeve 1, the throttle plate 4 and the lower valve seat 5; the throttle plate 4 is arranged between the upper sleeve 1 and the lower valve seat 5, and the upper sleeve 1, the throttle plate 4 and the lower valve seat are fixedly connected through a taper pin 6 and an inner hexagon screw 7; the bottom of the upper sleeve 1 is provided with a plurality of small holes 10; the throttle plate 4 is provided with a small flow channel 11 and a large flow channel 12, and the small flow channel 11 and the large flow channel 12 are alternately arranged.
In the installation process of the embodiment, the upper sleeve 1, the throttle plate 4 and the lower valve seat 5 are inserted into the pin hole 8 through the taper pin 6 for positioning, and then the upper sleeve 1, the throttle plate 4 and the lower valve seat 5 are fixedly connected through the matching of the inner hexagon screw 7 and the screw hole 9; the valve rod 3 is connected with the valve core 2 through welding, then the valve core 2 is placed in the upper sleeve 1, the throttling device is installed, and the throttling device is installed in the regulating valve during use.
The utility model discloses a working process and beneficial effect, during the condition of the little flow of high pressure difference, through opening case 2 to throttle plate 4 top, discharge through throttle plate 4, because throttle plate 4 adopts the maze disc shape to be equipped with little flow channel 11 and large-traffic passageway 12, the flow through the alternative flow of little flow channel 11 and large-traffic passageway 12, flow through little flow channel 11 earlier to large-traffic passageway 12, flow through large-traffic passageway 12 to little flow channel 11, the circulation is alternative, finally realize the multistage step-down of little flow; when the low pressure difference is large in flow, the valve core 2 is opened above the upper sleeve 1, the small hole 10 is exposed, and the flow is discharged through the small hole 10 and the throttle plate 4 simultaneously, so that the small pressure difference is adjusted when the flow is large; by adopting a valve structure of the sleeve, the throttling of the sleeve is specially designed, and the throttle plate 4 realizes multi-stage pressure reduction through the design of a labyrinth disc; the bottom of the upper sleeve 1 is provided with a plurality of small holes 10, and the throttling mode of the small holes 10 is adopted to realize large-flow control and transition connection of flow; the anti-cavitation regulation can be realized at low flow and high pressure difference through the structural arrangement of the labyrinth disc; through the structural arrangement of the small hole 10 formed in the upper sleeve 1, small pressure difference adjustment in large flow can be realized.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (3)
1. A throttling device meeting high pressure difference small flow and low pressure difference large flow is characterized by comprising an upper sleeve (1), a valve core (2), a valve rod (3), a throttling plate (4), a lower valve seat (5), a taper pin (6) and an inner hexagon screw (7); the valve rod (3) is connected with the valve core (2) in a welding mode, the valve core (2) is placed in the upper sleeve (1), and the upper sleeve (1), the throttle plate (4) and the lower valve seat (5) are all provided with a plurality of pin holes (8) and screw holes (9); the throttle plate (4) is arranged between the upper sleeve (1) and the lower valve seat (5), and the upper sleeve (1), the throttle plate (4) and the lower valve seat are fixedly connected through a taper pin (6) and an inner hexagon screw (7).
2. The throttling device for meeting the requirements of high differential pressure small flow and low differential pressure large flow according to claim 1, is characterized in that: the bottom of the upper sleeve (1) is provided with a plurality of small holes (10).
3. The throttling device for meeting the requirements of high differential pressure small flow and low differential pressure large flow according to claim 1, is characterized in that: the throttle plate (4) is provided with a small flow channel (11) and a large flow channel (12), and the small flow channel (11) and the large flow channel (12) are alternately arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920995346.8U CN210069116U (en) | 2019-06-28 | 2019-06-28 | Throttling device capable of meeting high pressure difference small flow and low pressure difference large flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920995346.8U CN210069116U (en) | 2019-06-28 | 2019-06-28 | Throttling device capable of meeting high pressure difference small flow and low pressure difference large flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210069116U true CN210069116U (en) | 2020-02-14 |
Family
ID=69429348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920995346.8U Active CN210069116U (en) | 2019-06-28 | 2019-06-28 | Throttling device capable of meeting high pressure difference small flow and low pressure difference large flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210069116U (en) |
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2019
- 2019-06-28 CN CN201920995346.8U patent/CN210069116U/en active Active
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