CN216242417U - Balanced cage governing valve of double-valve core - Google Patents
Balanced cage governing valve of double-valve core Download PDFInfo
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- CN216242417U CN216242417U CN202122868581.9U CN202122868581U CN216242417U CN 216242417 U CN216242417 U CN 216242417U CN 202122868581 U CN202122868581 U CN 202122868581U CN 216242417 U CN216242417 U CN 216242417U
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Abstract
The utility model discloses a double-valve-core balancing cage type regulating valve, which comprises: the valve comprises a valve body, a valve cavity is arranged in the valve body, and a medium inflow channel and a medium outflow channel which are communicated with the valve cavity are respectively arranged at the left end and the right end of the valve body; the valve cover is hermetically arranged on the top end face of the valve body; the adjusting cage assembly is arranged in the valve cavity and comprises a valve cage assembly, a valve core and a valve rod, a bottom port of the valve cage assembly is communicated with the medium inflow channel, a side wall port of the valve cage assembly is communicated with the medium outflow channel, and the valve core is movably arranged in the valve cage assembly. The device realizes small flow control and large flow control by respectively opening the double valve cores, and has wider adjustable range and smaller thrust requirement.
Description
Technical Field
The utility model particularly relates to the technical field of valves, in particular to a double-valve-core balancing cage type regulating valve.
Background
The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, has the functions of diversion, stopping, throttling, non-return, shunt or overflow pressure relief and the like, is used for controlling the fluid, and has various varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system.
The valve can be used for controlling the flow of water, steam, oil products, gas, mud, various corrosive media and other fluids.
The valve can be controlled by various transmission modes, such as manual, electric, pneumatic, hydraulic, gear drive and the like; the valve can act according to the preset requirement under the action of pressure, temperature or other forms of sensing signals, the valve can change the flow area by means of actions of lifting, rotating and the like of a driving or executing mechanism, and therefore the control on medium flow is achieved, and the adjusting valve with the single valve core in the common structure has the following defects:
1. the unbalanced regulating valve can realize micro flow regulation, but because the pressure at two sides of the valve core cannot be balanced, a larger actuating mechanism is usually selected, so that the cost is increased;
2. the balanced type regulating valve can balance the pressure on two sides of the valve core, but the valve core is large, so that micro flow regulation cannot be carried out.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a double-valve-core balance cage type regulating valve to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a dual spool balanced cage regulator valve, comprising:
the valve comprises a valve body, a valve cavity is arranged in the valve body, and a medium inflow channel and a medium outflow channel which are communicated with the valve cavity are respectively arranged at the left end and the right end of the valve body;
the valve cover is hermetically arranged on the top end face of the valve body;
the adjusting cage assembly is arranged in the valve cavity and comprises a valve cage assembly, a valve core and a valve rod, a bottom port of the valve cage assembly is communicated with the medium inflow channel, a side wall port of the valve cage assembly is communicated with the medium outflow channel, the valve core is movably arranged in the valve cage assembly, one end of the valve rod is fixedly connected to the top end face of the valve core, and the other end of the valve rod penetrates into an adjusting shaft hole of the valve cover and extends out.
Further, preferably, the valve cage assembly comprises a valve cage, a bushing and a valve seat, the valve cage is fixedly arranged at the top port of the valve cavity, and the bushing is fixedly arranged at the bottom end of the valve cage;
the valve seat is fixedly arranged at the bottom port of the valve cavity, a cage cavity is formed by matching the valve seat with the inner cavity of the valve cage, and the valve core is arranged in the cage cavity in a fit and sliding mode.
Further, preferably, a balance seal ring is provided between a bottom end surface of the cage and a top end surface of the bush.
Further, preferably, the valve core comprises a small valve seat, a balanced small valve core, a large valve core and a spring, a step-shaped annular notch is formed in the top end face of the large valve core, a valve hole penetrates through the center position of the inner bottom face of the notch, the balanced small valve core is arranged in the notch, the top end of the side wall of the notch is in threaded connection with the small valve seat, and the inner side face of the small valve seat is attached to the outer side face of the top of the balanced small valve core;
the top end of the balanced type small valve core is fixedly connected with the bottom end of the valve rod through a pin, a convex ring is arranged on the outer side face of the middle portion of the balanced type small valve core, and a plurality of uniformly distributed springs are fixedly connected between the bottom end face of the convex ring and the inner bottom face of the notch.
Preferably, the balanced small valve core is provided with a balance hole.
By adopting the technology, compared with the prior art, the utility model has the following beneficial effects: the utility model provides a double-valve-core balance cage type regulating valve, which can realize accurate regulation of a valve with a larger caliber in a small flow opening degree, extend the adjustable range of the valve to the small opening degree, simultaneously balance the pressure at two sides of the valve core, and have smaller selected actuating mechanism and higher economy.
Drawings
FIG. 1 is a partial cross-sectional view of a dual spool balanced cage regulator valve;
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
In the figure: 1. a valve stem; 2. a pin; 3. a small valve seat; 4. a balanced small valve core; 5. a large valve core; 6. a spring; 7. a cage; 8. a balance seal ring; 9. a bushing; 10. a valve seat; 11. a valve cover; 12. a valve body; 13. a medium outflow channel; 14. the medium flows into the channel.
Detailed Description
The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example (b): referring to fig. 1 and 2, the present invention provides a technical solution: a dual spool balanced cage regulator valve, comprising:
the valve body 12, there are valve cavities in the valve body 12, there are medium inflow passages 14 and medium outflow passages 13 communicated with valve cavity separately at the left, right both ends of the valve body 12;
the valve cover 11, the valve cover 11 is installed on top end of the valve body 12 in a sealing way;
adjust the cage subassembly, adjust the cage subassembly and set up in the valve chamber, adjust the cage subassembly and include valve cage subassembly, case and valve rod 1, and the bottom mouth and the medium inflow passageway 14 of valve cage subassembly are linked together, and the lateral wall mouth and the medium outflow passageway 13 of valve cage subassembly are linked together, and the portable case that is provided with in the valve cage subassembly, the one end of fixedly connected with valve rod 1 on the top face of case, the other end of valve rod 1 penetrates the regulation shaft hole of valve gap 11 and stretches out.
In this embodiment, the valve cage assembly includes a valve cage 7, a bushing 9 and a valve seat 10, the valve cage 7 is fixedly disposed at a top port of the valve cavity, and the bottom end of the valve cage 7 is fixedly disposed with the bushing 9;
the valve seat 10 is fixedly arranged at the bottom port of the valve cavity, a cage cavity is formed by matching the valve seat 10 with the inner cavity of the valve cage 7, and a valve core is arranged in the cage cavity in a fitting and sliding manner.
In this embodiment, a balance seal ring 8 is provided between the bottom end surface of the cage 7 and the top end surface of the bush 9.
In the embodiment, the valve core comprises a small valve seat 3, a balanced small valve core 4, a large valve core 5 and a spring 6, a step-shaped annular notch is formed in the top end face of the large valve core 5, a valve hole penetrates through the center position of the inner bottom face of the notch, the balanced small valve core 4 is arranged in the notch, the top end of the side wall of the notch is in threaded connection with the small valve seat 3, and the inner side face of the small valve seat 3 is attached to the outer side face of the top of the balanced small valve core 4;
the top of the small balanced valve core 4 is fixedly connected with the bottom of the valve rod 1 through a pin 2, a convex ring is arranged on the outer side face of the middle of the small balanced valve core 4, and a plurality of uniformly distributed springs 6 are fixedly connected between the bottom face of the convex ring and the inner bottom face of the notch.
In this embodiment, the balanced small valve core 4 is provided with a balance hole.
In specific implementation, when the valve is closed, the valve rod 1 moves downwards, the bottom of the balanced small valve core 4 is in contact with a sealing surface of an inner opening of the large valve core 5 to form sealing, the large valve core 5 is pushed to move downwards, the sealing surface of the bottom side of the large valve core 5 is in contact with the sealing surface of the valve seat 10 to realize sealing, and meanwhile, the side wall of the large valve core 5 is extruded with the balanced sealing ring 8 to form sealing, so that when a medium flows in from the bottom, integral sealing is formed;
when the valve is opened, the valve rod 1 moves upwards, the small balanced valve element 4 is driven to move upwards through the pin 2, the pressure on two sides is not balanced before the small balanced valve element 4 is opened, at the moment, the spring 6 releases pretightening force to push the small balanced valve element 4 to move upwards, after the small balanced valve element 4 is separated from the bottom hole of the large valve element 5, a medium flows through the balance hole of the small balanced valve element 4 through the bottom hole of the large valve element 5, the whole pressure is balanced, the resistance of valve movement is reduced, at the moment, the small balanced valve element 4 only moves inside the large valve element 5, and the actual flow capacity is only equal to the rated value of the hole formed in the bottom of the large valve element 5, so that the flow regulation under the working condition of small flow can be realized;
when the small balanced valve element 4 continues to move upwards until contacting the small valve seat 3, the valve rod 1 continues to drive the small balanced valve element 4 to move upwards through the pin 2, at the moment, the small balanced valve element 4 is matched with the small valve seat 3, the large valve element 5 is driven to move upwards through the threaded connection between the small valve seat 3 and the large valve element 5, the large valve element 5 is separated from the valve seat 10, a larger flow area is opened, and the valve has wider adjusting capacity.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a balanced cage type governing valve of double-valve core which characterized in that, it includes:
the valve comprises a valve body (12), wherein a valve cavity is formed in the valve body (12), and a medium inflow channel (14) and a medium outflow channel (13) which are communicated with the valve cavity are respectively arranged at the left end and the right end of the valve body (12);
the valve cover (11), the said valve cover (11) is installed on top end of the said valve block (12) sealingly;
the adjusting cage assembly is arranged in the valve cavity and comprises a valve cage assembly, a valve core and a valve rod (1), a bottom port of the valve cage assembly is communicated with the medium inflow channel (14), a side wall port of the valve cage assembly is communicated with the medium outflow channel (13), the valve core is movably arranged in the valve cage assembly, the top end face of the valve core is fixedly connected with one end of the valve rod (1), and the other end of the valve rod (1) penetrates into an adjusting shaft hole of the valve cover (11) and extends out.
2. The dual spool balanced cage regulator valve of claim 1, wherein: the valve cage assembly comprises a valve cage (7), a lining (9) and a valve seat (10), the valve cage (7) is fixedly arranged at the top port of the valve cavity, and the lining (9) is fixedly arranged at the bottom end of the valve cage (7);
the valve seat (10) is fixedly arranged at the bottom port of the valve cavity, a cage cavity is formed by matching the valve seat (10) with the inner cavity of the valve cage (7), and the valve core is arranged in the cage cavity in a fit and sliding mode.
3. The dual spool balanced cage regulator valve of claim 2, wherein: and a balance sealing ring (8) is arranged between the bottom end surface of the valve cage (7) and the top end surface of the bushing (9).
4. The dual spool balanced cage regulator valve of claim 2, wherein: the valve core comprises a small valve seat (3), a balanced small valve core (4), a large valve core (5) and a spring (6), a step-shaped annular notch is formed in the top end face of the large valve core (5), a valve hole penetrates through the center position of the inner bottom face of the notch, the balanced small valve core (4) is arranged in the notch, the top end of the side wall of the notch is in threaded connection with the small valve seat (3), and the inner side face of the small valve seat (3) is attached to the outer side face of the top of the balanced small valve core (4);
the top end of the balanced type small valve core (4) is fixedly connected with the bottom end of the valve rod (1) through a pin (2), a convex ring is arranged on the outer side face of the middle portion of the balanced type small valve core (4), and a plurality of uniformly distributed springs (6) are fixedly connected between the bottom end face of the convex ring and the inner bottom face of the notch.
5. The dual spool balanced cage regulator valve of claim 4, wherein: and a balance hole is formed in the balanced small valve core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122868581.9U CN216242417U (en) | 2021-11-22 | 2021-11-22 | Balanced cage governing valve of double-valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122868581.9U CN216242417U (en) | 2021-11-22 | 2021-11-22 | Balanced cage governing valve of double-valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242417U true CN216242417U (en) | 2022-04-08 |
Family
ID=80954864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122868581.9U Active CN216242417U (en) | 2021-11-22 | 2021-11-22 | Balanced cage governing valve of double-valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242417U (en) |
-
2021
- 2021-11-22 CN CN202122868581.9U patent/CN216242417U/en active Active
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| 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: 224141 Nanyang Town Industrial Park, Dafeng District, Yancheng City, Jiangsu Province Patentee after: Exxon (Jiangsu) Fluid Control System Co.,Ltd. Address before: 224141 Nanyang Town Industrial Park, Dafeng District, Yancheng City, Jiangsu Province Patentee before: Yiai Xi (Jiangsu) pipeline control system Co.,Ltd. |