CN216519693U - High-temperature regulating valve - Google Patents
High-temperature regulating valve Download PDFInfo
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- CN216519693U CN216519693U CN202121792822.XU CN202121792822U CN216519693U CN 216519693 U CN216519693 U CN 216519693U CN 202121792822 U CN202121792822 U CN 202121792822U CN 216519693 U CN216519693 U CN 216519693U
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- split ring
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- sleeve
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Abstract
The utility model relates to a regulating valve, in particular to a high-temperature regulating valve, which comprises a valve cover, a valve body, a valve rod, a valve core, a sleeve and a valve core flange, wherein the valve body is provided with a flow channel inlet, a middle cavity and a flow channel outlet which are mutually communicated; further comprising: the metal hollow split ring comprises an annular pipe and an elastic opening, the elastic opening is arranged along the top surface of the annular pipe and communicated with the annular pipe, and the elastic opening is also positioned above the annular center line of the annular pipe; the hollow split ring is arranged at the top of the valve core and is positioned below the valve core flange, and the hollow split ring is used for sealing the valve core and the sleeve. The high-temperature regulating valve has the advantages of good sealing effect, high temperature resistance, wear resistance, scouring resistance and stable structure.
Description
Technical Field
The utility model relates to a regulating valve, in particular to a high-temperature regulating valve.
Background
The prior sleeve (balance type) regulating valve has a sealing surface between the bottom of the valve core and the sleeve and a plane sealing surface between the top of the valve core and the sleeve, and the sealing forms adopted by the prior art are roughly the following types:
1. the metal seal is double-seat seal, an upper sealing surface and a lower sealing surface are simultaneously arranged on the valve core and act on the sleeve and the valve core, and the valve can be sealed only by ensuring that the two sealing surfaces are sealed simultaneously. When double-seat sealing is adopted, the processing requirement is high, but the sealing grade is low, and the maintenance and overhaul costs are high; although the valve is of a metal structure, due to the expansibility of high-temperature metal, the guide clearance between the valve core and the sleeve can only be enlarged under the action of high temperature, so that the valve is easy to vibrate, unstable to control, break the valve rod and the like.
2. The non-metal sealing material is adopted, similar to piston sealing, and the sealing ring material is commonly tetrafluoro, graphite and the like. The sealing is carried out by adopting a non-metallic material, and the temperature of the tetrafluoro material is limited and can only reach 200 ℃; and the graphite sealing is not beneficial to the scouring of the medium and high pressure difference.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a high-temperature regulating valve which can still keep good sealing performance at high temperature, is wear-resistant and scouring-resistant, has small clearance between a valve core and a sleeve, is not easy to oscillate and is stably controlled, and the specific technical scheme is as follows:
the high-temperature regulating valve comprises a valve cover, a valve body, a valve rod, a valve core, a sleeve and a valve core flange, wherein the valve body is provided with a flow channel inlet, a middle cavity and a flow channel outlet which are mutually communicated; further comprising: the metal hollow split ring comprises an annular pipe and an elastic opening, the elastic opening is arranged along the top surface of the annular pipe and communicated with the annular pipe, and the elastic opening is also positioned above the annular center line of the annular pipe; the hollow split ring is arranged at the top of the valve core and is positioned below the valve core flange, and the hollow split ring is used for sealing the valve core and the sleeve.
Preferably, the sleeve is provided with a sliding cavity, a transition cavity and a sealing cavity from top to bottom, the transition cavity is a conical cavity and is used for transitionally connecting the sliding cavity and the sealing cavity, the diameter of the sliding cavity is larger than the outer diameter of the hollow split ring, the diameter of the sealing cavity is not larger than the outer diameter of the hollow split ring and forms sealing with the hollow split ring, the hollow split ring is located in the sliding cavity when the valve core is located at the top of the sleeve, and the hollow split ring is located in the sealing cavity when the valve core is located at the bottom of the sleeve.
Preferably, the valve further comprises a guide ring, wherein the guide ring is fixedly installed in the guide groove of the valve core flange and is movably inserted in the sliding cavity.
Compared with the prior art, the utility model has the following beneficial effects:
the high-temperature regulating valve provided by the utility model adopts the hollow split ring made of metal for sealing, has good sealing effect, is high-temperature resistant, wear-resistant and scouring-resistant, and simultaneously has small clearance between the valve core and the sleeve, difficult oscillation of the valve, stable control and high structural stability.
Drawings
FIG. 1 is a schematic structural view of a high temperature regulator valve with the valve spool in an open state;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic structural view of the high temperature regulating valve with the valve spool in a closed state;
FIG. 4 is an enlarged view of a portion of FIG. 3 at II;
FIG. 5 is a schematic structural view of a hollow split ring;
fig. 6 is a schematic view of the structure of the sleeve.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 6, the high-temperature regulating valve includes a valve cover 1, a valve body 2, a valve rod 3, a valve core 4, a sleeve 5, a valve core flange 6 and a hollow split ring 9, the valve body 2 is provided with a flow channel inlet 21, a middle cavity 23 and a flow channel outlet 22 which are mutually communicated, the sleeve 5 is installed on the middle cavity 23, the sleeve 5 is provided with a plurality of through holes 54, the through holes 54 are arranged in an annular array, the through holes 54 are respectively communicated with the flow channel inlet 21 and the flow channel outlet 22, the valve core 4 is slidably inserted into the sleeve 5, the valve core 4 is connected with the valve rod 3, the valve rod 3 is installed on the valve cover 1, the valve cover 1 is installed on the valve body 2, the valve core flange 6 is installed on the top of the valve core 4, and the valve core 4 is provided with a pressure relief balance hole 41; the hollow split ring 9 is made of metal and can be made of steel, stainless steel, spring steel or copper, the hollow split ring 9 comprises an annular pipe 91 and an elastic opening 92, the elastic opening 92 is arranged along the top surface of the annular pipe 91 and is communicated with the annular pipe 91, the elastic opening 92 is also positioned above the annular center line of the annular pipe 91, and the width of the elastic opening 92 is smaller than the diameter of the annular pipe 91; the hollow split ring 9 is arranged on a shaft shoulder 42 at the top of the valve core 4 and is positioned below the valve core flange 6, the valve core flange 6 fixes the hollow split ring 9 at the top of the valve core 4, and the hollow split ring 9 is used for sealing the valve core 4 and the sleeve 5.
The diameter of the hollow split ring 9 is slightly smaller than that of the top of the valve core 4, and a seal is formed between the hollow split ring and the valve core 4.
The elastic opening 92 enables the two sides of the hollow split ring 9 to be freely deformed after being squeezed, and therefore sealing between the valve core 4 and the sleeve 5 is achieved.
The hollow split ring 9 realizes the sealing of the cavity between the valve core 4 and the valve cover 1, and avoids the liquid entering the flow passage outlet 22 through the gap between the valve core 4 and the sleeve 5 when the valve is closed, thereby improving the sealing effect and preventing leakage. Because the hollow split ring 9 is made of metal, the valve is high-temperature resistant, wear-resistant, scouring-resistant, long in service life, good in sealing performance with the sleeve 5, capable of reducing the clearance between the valve core 4 and the sleeve 5, not easy to oscillate, stable in control and high in structural stability.
The bottom of the sleeve 5 is usually provided with a valve seat 8, and the valve seat 8 is connected with the valve hole 23 in a sealing way, so that the processing of the sleeve 5 is convenient.
A sealing gasket is arranged between the valve cover 1 and the valve body 2.
In some embodiments, as shown in fig. 6, the sleeve 5 is provided with a sliding cavity 51, a transition cavity 52 and a sealing cavity 53 from top to bottom, the transition cavity 52 is a tapered cavity for transitionally connecting the sliding cavity 51 and the sealing cavity 53, the diameter of the sliding cavity 51 is larger than the outer diameter of the hollow split ring 9, the diameter of the sealing cavity 53 is not larger than the outer diameter of the hollow split ring 9, and forms a seal with the hollow split ring 9, the hollow split ring 9 is located in the sliding cavity 51 when the valve core 4 is located at the top of the sleeve 5, and the hollow split ring 9 is located in the sealing cavity 53 when the valve core 4 is located at the bottom of the sleeve 5.
The sliding cavity 51 is not in contact with the hollow split ring 9, friction force can be effectively reduced in the lifting process of the valve core 4, abrasion is reduced, the service life is prolonged, and the transition cavity 52 is used for extruding the hollow split ring 9, so that the outer side face of the hollow split ring 9 is pressed on the inner side face of the sealing cavity 53, and the valve core 4 and the sleeve 5 are sealed. The sealing ring at the bottom of the valve core 4 and the hollow split ring 9 realize the sealing of the area of the sleeve 5 provided with the through hole 54.
In some embodiments, the valve further comprises a guide ring 7, wherein the guide ring 7 is fixedly arranged in the guide groove of the valve core flange 6 and movably inserted in the sliding cavity 51. The guide ring 7 guides the valve core 4 when sliding in the sliding cavity 51, thereby ensuring that the axis of the valve core 4 is overlapped with the axis of the sleeve 5 and improving the lifting stability.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the utility model without inventive step, which fall within the scope of the appended claims.
Claims (3)
1. The high-temperature regulating valve comprises a valve cover, a valve body, a valve rod, a valve core, a sleeve and a valve core flange, wherein the valve body is provided with a flow channel inlet, a middle cavity and a flow channel outlet which are mutually communicated; it is characterized by also comprising:
the metal hollow split ring comprises an annular pipe and an elastic opening, the elastic opening is arranged along the top surface of the annular pipe and communicated with the annular pipe, and the elastic opening is also positioned above the annular center line of the annular pipe; the hollow split ring is arranged at the top of the valve core and is positioned below the valve core flange, and the hollow split ring is used for sealing the valve core and the sleeve.
2. The high-temperature regulating valve according to claim 1, wherein the sleeve is provided with a sliding cavity, a transition cavity and a sealing cavity from top to bottom, the transition cavity is a conical cavity body and is used for transitionally connecting the sliding cavity and the sealing cavity, the diameter of the sliding cavity is larger than the outer diameter of the hollow split ring, the diameter of the sealing cavity is not larger than the outer diameter of the hollow split ring, and forms a seal with the hollow split ring, the hollow split ring is positioned in the sliding cavity when the valve core is positioned at the top of the sleeve, and the hollow split ring is positioned in the sealing cavity when the valve core is positioned at the bottom of the sleeve.
3. The high temperature regulating valve according to claim 2, further comprising a guide ring fixedly installed in the guide groove of the spool flange and movably inserted in the sliding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792822.XU CN216519693U (en) | 2021-08-02 | 2021-08-02 | High-temperature regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121792822.XU CN216519693U (en) | 2021-08-02 | 2021-08-02 | High-temperature regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519693U true CN216519693U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121792822.XU Active CN216519693U (en) | 2021-08-02 | 2021-08-02 | High-temperature regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329212A (en) * | 2023-03-30 | 2023-06-27 | 帕克(无锡)阀门有限公司 | Self-cleaning adjusting ball valve and use method thereof |
-
2021
- 2021-08-02 CN CN202121792822.XU patent/CN216519693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116329212A (en) * | 2023-03-30 | 2023-06-27 | 帕克(无锡)阀门有限公司 | Self-cleaning adjusting ball valve and use method thereof |
| CN116329212B (en) * | 2023-03-30 | 2023-11-17 | 帕克(无锡)阀门有限公司 | Self-cleaning adjusting ball valve and use method thereof |
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