CN209925645U - Master-slave valve core type accurate flow regulating valve - Google Patents
Master-slave valve core type accurate flow regulating valve Download PDFInfo
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- CN209925645U CN209925645U CN201920454149.5U CN201920454149U CN209925645U CN 209925645 U CN209925645 U CN 209925645U CN 201920454149 U CN201920454149 U CN 201920454149U CN 209925645 U CN209925645 U CN 209925645U
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Abstract
The utility model relates to an accurate flow control valve of primary and secondary valve core formula, this governing valve includes the valve body, install the female valve core in the valve body and install the sub-valve core in the female valve core, the inside of valve body is equipped with the import runner and the export runner of intercommunication with external intercommunication and communicates the valve body chamber between them, all be equipped with the subchannel along its periphery equipartition on sub-valve core and the female valve core, this subchannel is formed along arc route scanning excision by fan-shaped profile, the medium of circulation is linear diminishing through the flow area of case subchannel, the trend that diminishes simultaneously also slows down gradually, thereby realize the accurate regulation of medium flow, furthermore, through suit sub-valve core at the female valve core, the medium is adjusted near one step through the subchannel of sub-valve core, it is more accurate to the flow control through the medium of this governing valve.
Description
Technical Field
The utility model relates to a flow control valve's technical field, in particular to accurate flow control valve of primary and secondary valve core formula.
Background
In the automatic control of modern factories, regulating valves play an important role, the production of these factories depends on the correct distribution and control of flowing media, and these controls, no matter whether energy exchange, pressure reduction or simple container charging, all need some control elements to complete finally, for flow regulating valves, traditional flow regulating valves adopt constant flow and time to control, and flow regulating valves are relatively complicated in structure, low in flow regulating precision, and can not control the pipeline with fine flow requirements accurately, only can roughly control the flow of media, and can not meet the technical requirements of modern production, so that there is a great need to develop a flow regulating valve capable of accurately controlling the flow of media.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an accurate flow control valve of primary and secondary valve core formula.
The specific contents are as follows: the accurate flow control valve of primary and secondary case formula, this governing valve include the valve body, install the primary valve case in the valve body and install the secondary valve case in the primary valve case, characterized by:
an inlet flow passage communicated with the outside, an outlet flow passage communicated with the outside and a valve body cavity communicated with the inlet flow passage and the outlet flow passage in the valve body are arranged in the valve body, and the inlet flow passage is cylindrical;
the main valve core is cylindrical with the same diameter as the inlet flow channel, the main valve core is coaxially plugged in the inlet flow channel, one end of the main valve core is positioned in the valve body cavity, a disc-shaped main sealing end plate with the diameter larger than that of the main valve core and matched with the valve body cavity is coaxially fixed on the end surface of one end of the main valve core positioned in the valve body cavity, a main valve rod which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the main sealing end plate, the main valve rod is connected with the valve body through a thread, a valve core cavity is arranged in one end of the main sealing end plate of the main valve core, a sub-flow channel which is communicated with the inlet flow channel and the valve core cavity is also arranged in the main valve core along the axial direction of the main valve core, an overflow hole which radially penetrates through the main valve core and is communicated with the valve core cavity is arranged on the main valve core, the sub-flow channel and the valve core cavity are both cylindrical and coaxial, the main valve core is provided with a main branch flow channel which is uniformly distributed along the outer circumferential surface and is cut inwards, the main branch flow channel is formed by scanning and cutting a fan-shaped outline along an arc-shaped path A, the arc-shaped path A is coplanar with the axis of the main valve core, and the edge of one end of the sub flow channel in the inlet flow channel is up to the outer circumferential surface of the main valve core;
the sub valve core is in a cylinder shape with the same diameter as the sub flow channel, the sub valve core is coaxially plugged in the sub flow channel, one end of the sub valve core is positioned in the valve core cavity, a disc-shaped sub sealing end plate which has the diameter larger than that of the sub valve core and is matched with the valve core cavity is coaxially fixed on the end surface of one end of the sub valve core which is positioned in the valve core cavity, a sub valve rod which extends outwards and passes through the mother sealing end plate and the mother valve rod is coaxially fixed on the outer end surface of the sub sealing end plate, the sub valve rod is in threaded connection with an internal threaded hole which axially penetrates through the main sealing end plate and the main valve rod, the sub valve core is provided with sub runners which are uniformly distributed along the outer circumferential surface and cut inwards, the sub-flow channel is formed by scanning and cutting off a fan-shaped outline along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the sub-valve core and extends from the circle center of the end face of the sub-valve core in the sub-flow channel to the outer circumferential surface of the sub-valve core.
Preferably, the arc-shaped path A and the arc-shaped path B are both a section of a parabola or a section of an ellipse.
Preferably, the arc-shaped path A and the arc-shaped path B are both sections of parabolas, the vertexes of the parabolas are respectively positioned at the starting points of the arc-shaped path A and the arc-shaped path B, and the focuses of the parabolas are respectively positioned on the generatrix of the sub-flow passage and the axis of the sub-valve core.
Preferably, the arc-shaped path A and the arc-shaped path B are sections of an ellipse, one vertex of the long axis of the ellipse is the starting point of the arc-shaped path A and the starting point of the arc-shaped path B respectively, and the focus of the ellipse is on the generatrix of the sub-flow passage and the axis of the sub-valve core respectively.
Preferably, the inlet channel and the outlet channel on the valve body are respectively provided with an inlet joint and an outlet joint.
Preferably, a female handle is fixed on the free end of the female valve rod, and a sub handle is fixed on the free end of the sub valve rod.
Preferably, the axial length of the female valve core is matched with the transverse length of the valve body cavity, and the axial length of the sub valve core is matched with the axial length of the valve core cavity.
The utility model has the advantages of: the utility model relates to an accurate flow control valve of primary and secondary valve core formula, this governing valve includes the valve body, install the female valve core in the valve body and install the sub-valve core in the female valve core, the inside of valve body is equipped with the import runner and the export runner of intercommunication with external intercommunication and communicates valve body chamber between them, all be equipped with the subchannel along its periphery equipartition on sub-valve core and the female valve core, this subchannel is formed along arc path scanning excision by fan-shaped profile, the medium of circulation is linear diminishing through the flow area of case subchannel, the trend that diminishes simultaneously also slows down gradually, thereby realize medium flow's accurate regulation, furthermore, through suit sub-valve core in the female valve core, the medium is adjusted near one step through the subchannel of sub-valve core, it is more accurate to the flow control through the medium of this governing valve.
Drawings
FIG. 1 is a schematic view of a subjective structure of a master-slave valve core type precise flow control valve;
FIG. 2 is a schematic view of the subjective construction of the female valve element;
FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is a schematic cross-sectional view taken along the line B-B in FIG. 2;
FIG. 5 is a schematic view of the subjective structure of a sub-cartridge;
FIG. 6 is a schematic cross-sectional view taken along the line C-C in FIG. 5;
in the figure: 1. the valve comprises a valve body, 11, an outlet flow passage, 12, an outlet joint, 13, a valve body cavity, 14, an inlet joint, 15, an inlet flow passage, 2, a female valve core, 21, a female valve rod, 22, a female handle, 23, an internal threaded hole, 24, a female sealing end plate, 25, a valve core cavity, 26, an overflow hole, 27, a female branch flow passage, 28, a sub flow passage, 29, an arc-shaped path A, 3, a sub valve core, 31, a sub valve rod, 32, a sub handle, 33, a sub sealing end plate, 34, a sub branch flow passage and 35, wherein the arc-shaped path A is arranged in the valve body.
Detailed Description
Embodiment one, referring to fig. 1 to 6, a primary and secondary valve core type precision flow regulating valve comprises a valve body, a primary valve core installed in the valve body, and a secondary valve core installed in the primary valve core,
an inlet flow passage communicated with the outside, an outlet flow passage communicated with the outside and a valve body cavity communicated with the inlet flow passage and the outlet flow passage in the valve body are arranged in the valve body, and the inlet flow passage is cylindrical;
the main valve core is cylindrical with the same diameter as the inlet flow passage, the main valve core is coaxially plugged in the inlet flow passage, one end of the main valve core is positioned in the valve body cavity, a disc-shaped main sealing end plate with the diameter larger than that of the main valve core and matched with the valve body cavity is coaxially fixed on the end surface of one end of the main valve core positioned in the valve body cavity, a main valve rod which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the main sealing end plate, the main valve rod is connected with the valve body through threads, the adjustment of the valve core is realized through the threaded connection, a valve core cavity is arranged in one end of the main sealing end plate of the main valve core, a sub-flow passage which is communicated with the inlet flow passage and the valve core cavity is also arranged in the main valve core along the axial direction of the main valve core, an overflow hole which is radially penetrated through the main valve core and is communicated with the valve core cavity is arranged on the main valve core, the diameter of the valve core cavity is larger than that of the sub-runner, a main sub-runner which is uniformly distributed along the outer circumferential surface and is cut inwards is arranged on the main valve core, the main sub-runner is formed by scanning and cutting a fan-shaped outline along an arc-shaped path A, the arc-shaped path A is coplanar with the axis of the main valve core, and the edge of one end of the sub-runner in the inlet runner is up to the outer circumferential surface of the main valve core;
the sub valve core is in a cylinder shape with the same diameter as the sub flow channel, the sub valve core is coaxially plugged in the sub flow channel, one end of the sub valve core is positioned in the valve core cavity, a disc-shaped sub sealing end plate which has the diameter larger than that of the sub valve core and is matched with the valve core cavity is coaxially fixed on the end surface of one end of the sub valve core which is positioned in the valve core cavity, a sub valve rod which extends outwards and passes through the mother sealing end plate and the mother valve rod is coaxially fixed on the outer end surface of the sub sealing end plate, the sub valve rod is in threaded connection with an internal threaded hole which axially penetrates through the main sealing end plate and the main valve rod, the sub valve core is provided with sub runners which are uniformly distributed along the outer circumferential surface and cut inwards, the sub-flow channel is formed by scanning and cutting off a fan-shaped outline along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the sub-valve core and extends from the circle center of the end face of the sub-valve core in the sub-flow channel to the outer circumferential surface of the sub-valve core.
The arc-shaped path A and the arc-shaped path B are both a section of a parabola or a section of an ellipse, and the arc-shaped path can be designed into other linear arcs according to actual needs.
The arc-shaped path A and the arc-shaped path B are sections of parabolas, the top points of the parabolas are respectively positioned at the starting points of the arc-shaped path A and the arc-shaped path B, and the focuses of the parabolas are respectively positioned on the generatrix of the sub-valve core and the axis of the sub-valve core, so that the flow area of a medium passing through the sub-valve core or the main valve core is linearly smaller, and the smaller trend is gradually slowed down.
The arc-shaped path A and the arc-shaped path B are sections of an ellipse, one vertex of a long axis of the ellipse is a starting point of the arc-shaped path A and a starting point of the arc-shaped path B respectively, and the focus of the ellipse is on a generatrix of the sub-valve core and an axis of the sub-valve core respectively, so that the flow area of a medium passing through the sub-valve core or the main valve core is linearly smaller, and the smaller trend is gradually slowed down.
The inlet runner and the outlet runner on the valve body are respectively provided with an inlet joint and an outlet joint, which are used for connecting the utility model discloses put through in the pipeline that corresponds.
A female handle is fixed on the free end of the female valve rod, and a secondary handle is fixed on the free end of the secondary valve rod.
The axial length of the female valve core is matched with the transverse length of the valve body cavity, and the axial length of the sub valve core is matched with the axial length of the valve core cavity.
The utility model discloses a theory of operation and process:
the utility model is communicated with a corresponding pipeline through an inlet joint and an outlet joint, a circulating medium enters from an inlet flow passage and flows out from an outlet flow passage through a valve core, a mother valve core moves along the axial direction of the inlet flow passage by rotating a mother handle (the mother handle is relatively fixed), thereby changing the flow area formed between the mother flow passage on the mother valve core and the end surface of the inlet flow passage, further realizing the adjustment of the flow of the circulating medium, and after the mother valve core is adjusted at a proper position, the son handle (the mother handle is relatively fixed) is rotated to make the son valve core move along the axial direction of the son flow passage in the mother valve core, thereby changing the flow area formed between the son flow passage on the son valve core and the end surface of the son flow passage, realizing more accurate adjustment of the medium flow, because the flow areas of the son flow passage and the mother flow passage are linearly changed, and the change trend is very slow, therefore, when the flow adjustment is carried out, the change quantity of the medium flow is very small by rotating the circle of the sub valve core or the mother valve core, so that the accurate adjustment of the medium flow can be realized.
Claims (7)
1. The accurate flow control valve of primary and secondary case formula, this governing valve include the valve body, install the primary valve case in the valve body and install the secondary valve case in the primary valve case, characterized by:
an inlet flow passage communicated with the outside, an outlet flow passage communicated with the outside and a valve body cavity communicated with the inlet flow passage and the outlet flow passage in the valve body are arranged in the valve body, and the inlet flow passage is cylindrical;
the main valve core is cylindrical with the same diameter as the inlet flow channel, the main valve core is coaxially plugged in the inlet flow channel, one end of the main valve core is positioned in the valve body cavity, a disc-shaped main sealing end plate with the diameter larger than that of the main valve core and matched with the valve body cavity is coaxially fixed on the end surface of one end of the main valve core positioned in the valve body cavity, a main valve rod which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the main sealing end plate, the main valve rod is connected with the valve body through a thread, a valve core cavity is arranged in one end of the main sealing end plate of the main valve core, a sub-flow channel which is communicated with the inlet flow channel and the valve core cavity is also arranged in the main valve core along the axial direction of the main valve core, an overflow hole which radially penetrates through the main valve core and is communicated with the valve core cavity is arranged on the main valve core, the sub-flow channel and the valve core cavity are both cylindrical and coaxial, the main valve core is provided with a main branch flow channel which is uniformly distributed along the outer circumferential surface and is cut inwards, the main branch flow channel is formed by scanning and cutting a fan-shaped outline along an arc-shaped path A, the arc-shaped path A is coplanar with the axis of the main valve core, and the edge of one end of the sub flow channel in the inlet flow channel is up to the outer circumferential surface of the main valve core;
the sub valve core is in a cylinder shape with the same diameter as the sub flow channel, the sub valve core is coaxially plugged in the sub flow channel, one end of the sub valve core is positioned in the valve core cavity, a disc-shaped sub sealing end plate which has the diameter larger than that of the sub valve core and is matched with the valve core cavity is coaxially fixed on the end surface of one end of the sub valve core which is positioned in the valve core cavity, a sub valve rod which extends outwards and passes through the mother sealing end plate and the mother valve rod is coaxially fixed on the outer end surface of the sub sealing end plate, the sub valve rod is in threaded connection with an internal threaded hole which axially penetrates through the main sealing end plate and the main valve rod, the sub valve core is provided with sub runners which are uniformly distributed along the outer circumferential surface and cut inwards, the sub-flow channel is formed by scanning and cutting off a fan-shaped outline along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the sub-valve core and extends from the circle center of the end face of the sub-valve core in the sub-flow channel to the outer circumferential surface of the sub-valve core.
2. The master-slave valve core type precise flow regulating valve according to claim 1, which is characterized in that: the arc-shaped path A and the arc-shaped path B are both a section of a parabola or a section of an ellipse.
3. The master-slave valve core type precise flow regulating valve according to claim 2, which is characterized in that: the arc-shaped path A and the arc-shaped path B are sections of parabolas, the top points of the parabolas are respectively positioned on the starting points of the arc-shaped path A and the arc-shaped path B, and the focuses of the parabolas are respectively positioned on the generatrix of the sub-flow passage and the axis of the sub-valve core.
4. The master-slave valve core type precise flow regulating valve according to claim 2, which is characterized in that: the arc-shaped path A and the arc-shaped path B are sections of an ellipse, one vertex of the long axis of the ellipse is the starting point of the arc-shaped path A and the starting point of the arc-shaped path B respectively, and the focus of the ellipse is on the generatrix of the sub-flow passage and the axis of the sub-valve core respectively.
5. The master-slave valve core type precise flow regulating valve according to claim 1, which is characterized in that: the inlet channel and the outlet channel on the valve body are respectively provided with an inlet connector and an outlet connector.
6. The master-slave valve core type precise flow regulating valve according to claim 1, which is characterized in that: a female handle is fixed on the free end of the female valve rod, and a secondary handle is fixed on the free end of the secondary valve rod.
7. The master-slave valve core type precise flow regulating valve according to claim 1, which is characterized in that: the axial length of the female valve core is matched with the transverse length of the valve body cavity, and the axial length of the sub valve core is matched with the axial length of the valve core cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454149.5U CN209925645U (en) | 2019-04-04 | 2019-04-04 | Master-slave valve core type accurate flow regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454149.5U CN209925645U (en) | 2019-04-04 | 2019-04-04 | Master-slave valve core type accurate flow regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN209925645U true CN209925645U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920454149.5U Withdrawn - After Issue CN209925645U (en) | 2019-04-04 | 2019-04-04 | Master-slave valve core type accurate flow regulating valve |
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| Country | Link |
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| CN (1) | CN209925645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973671A (en) * | 2019-04-04 | 2019-07-05 | 新乡航空工业(集团)有限公司 | The accurate flow control valve of primary and secondary valve core type |
-
2019
- 2019-04-04 CN CN201920454149.5U patent/CN209925645U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973671A (en) * | 2019-04-04 | 2019-07-05 | 新乡航空工业(集团)有限公司 | The accurate flow control valve of primary and secondary valve core type |
| CN109973671B (en) * | 2019-04-04 | 2024-04-12 | 航空工业(新乡)计测科技有限公司 | Primary and secondary valve core type accurate flow regulating valve |
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Granted publication date: 20200110 Effective date of abandoning: 20240412 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200110 Effective date of abandoning: 20240412 |