CN111059351A - High-temperature built-in bypass type stop valve - Google Patents
High-temperature built-in bypass type stop valve Download PDFInfo
- Publication number
- CN111059351A CN111059351A CN201911408046.6A CN201911408046A CN111059351A CN 111059351 A CN111059351 A CN 111059351A CN 201911408046 A CN201911408046 A CN 201911408046A CN 111059351 A CN111059351 A CN 111059351A
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- Prior art keywords
- valve
- temperature
- heating wire
- rotating device
- valve body
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- 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.)
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Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 13
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 7
- 239000010935 stainless steel Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/002—Electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention belongs to the technical field of valves, and particularly relates to a high-temperature built-in bypass type stop valve which comprises a valve body, a high-temperature device, a support and a rotating device, wherein a valve seat is arranged at the bottom end inside the valve body; the heater strip has stainless steel protective sheath and magnesium oxide insulating layer, plays the isolated effect of heating, and is more high temperature resistant, and the another side of heater strip is provided with the heater strip baffle, and the fixed heater strip of being convenient for makes the more efficient even heating of heat source again.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to a high-temperature built-in bypass type stop valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the fully open position of the shut-off valve is determined by the stroke of the valve clack.
Compared with the prior art the problem that exists:
the existing high-temperature built-in bypass type stop valve has the defects of poor sealing property and the like after being used for a long time.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a high-temperature built-in bypass stop valve which has the characteristics of uniform heating and good sealing property.
In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature built-in bypass stop valve comprises a valve body, a high-temperature device, a bracket and a rotating device, wherein a valve seat is arranged at the bottom end inside the valve body, the high-temperature device is arranged on the inner wall of the valve seat and comprises a heating wire and a heating wire baffle, the heating wire baffle is fixedly arranged on the inner wall of the valve seat, the heating wire is arranged on the other surface of the heating wire baffle, a thermocouple temperature measuring jack is arranged on the side surface of the valve body and is connected with the high-temperature device, the rotating device is arranged above the valve body, a bracket is connected between the valve body and the rotating device, a valve rod is arranged above the high-temperature device, the other end of the valve rod is fixedly connected to the rotating device, the bottom end of the valve rod is provided with a valve clack close to the high-temperature device, and a packing group is arranged inside the valve body.
Preferably, the rotating device comprises a motor, a reducer and the like, and an output end of the rotating device is fixedly connected with the top end of the valve rod.
Preferably, both ends of the bracket are fixedly connected with the valve body and the rotating device respectively through bolts.
Preferably, a hand wheel is fixedly arranged outside the rotating device and fixed on the rotating device through a bolt.
Preferably, the heater strip is single core, encircles into the slice, the heater strip has stainless steel protection crust and magnesium oxide insulating layer, it is insulating by magnesium oxide between the inner core and the crust of heater strip.
Preferably, the top end of the valve seat is provided with a valve cover matched with the valve seat in a clamping manner.
Preferably, the valve rod penetrates through the inside of the valve body and is provided with an O-shaped ring, and sealing gaskets are arranged at the joints of the inner walls of the valve body.
Compared with the prior art, the invention has the beneficial effects that: the thermocouple temperature measurement jack of seting up through the side of valve body connects the heater strip, and the heater strip is single core, encircles into the slice, and the heater strip has stainless steel protective sheath and magnesium oxide insulating layer, is insulated by magnesium oxide between the inner core of heater strip and the sheath, plays the isolated effect of heating, and is more high temperature resistant, and the another side of heater strip is provided with the heater strip baffle, and the fixed heater strip of being convenient for makes the more efficient even heating of heat source again.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of the overall construction of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a schematic view of a high temperature apparatus of the present invention;
in the figure: 1. a valve body; 2. a high temperature device; 3. a valve seat; 4. a valve flap; 5. a valve cover; 6. sealing gaskets; 7. a filler group; 8. a support; 9. a rotating device; 10. a hand wheel; 11. a valve stem; 12. heating wires; 13. a heating wire baffle; 14. and a thermocouple temperature measuring jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present invention provides the following technical solutions: a high-temperature built-in bypass type stop valve comprises a valve body 1, a high-temperature device 2, a support 7 and a rotating device 9, wherein a valve seat 3 is arranged at the bottom end inside the valve body 1, the high-temperature device 2 is arranged on the inner wall of the valve seat 3, the high-temperature device 2 comprises a heating wire 12 and a heating wire baffle 13, the heating wire baffle 13 is fixedly arranged on the inner wall of the valve seat 3, the other side of the heating wire baffle 13 is provided with the heating wire 12, the heating wire 12 is single-core and is wound into a sheet shape, the heating wire 12 is provided with a stainless steel protective sheath and a magnesium oxide insulating layer, an inner core and the sheath of the heating wire 12 are insulated by magnesium oxide, a thermocouple temperature measuring jack 14 is arranged on the side surface of the valve body 1, the thermocouple temperature measuring jack 14 is connected with the high-temperature device 2, the other end fixed connection of valve rod 11 is on rotating device 9, and the bottom of valve rod 11 is close to high temperature device 2 department and is provided with valve clack 4, and the inside of valve body 1 is provided with packing group 7.
In this embodiment: the motor is Y80M1-2 in model number, and has the advantages of high efficiency, energy conservation, good performance and high reliability.
In this embodiment: the heating wire 12 is connected through the thermocouple temperature measuring jack 14 arranged on the side face of the valve body 1, the heating wire 12 is a single core and is wound into a sheet shape, the heating wire 12 is provided with a stainless steel protective outer skin and a magnesium oxide insulating layer, the inner core and the outer skin of the heating wire 12 are insulated by magnesium oxide, the heating isolation effect is achieved, the heating wire is high-temperature resistant, the heating wire baffle 13 is arranged on the other side of the heating wire 12, and the heating wire 12 is convenient to fix and enables the heat source to heat more efficiently and uniformly.
Specifically, the rotating device 9 comprises a motor, a speed reducer and the like, the output end of the rotating device 9 is fixedly connected with the top end of the valve rod 11, a hand wheel 10 is fixedly arranged outside the rotating device 9, and the hand wheel 10 is fixed on the rotating device 9 through a bolt; and power is provided for the high-temperature built-in bypass type stop valve.
Specifically, two ends of the bracket 8 are respectively fixedly connected with the valve body 1 and the rotating device 9 through bolts; and the supporting function is achieved.
Specifically, the top end of the valve seat 3 is provided with a valve cover 5 which is matched with the valve seat 3 to be clamped with each other; the sealing effect is achieved.
Specifically, the valve rod 11 penetrates through the interior of the valve body 1 and is provided with an O-shaped ring, and sealing gaskets 6 are arranged at the joints of the inner walls of the valve body 1; the sealing effect is achieved.
The working principle and the using process of the invention are as follows: in the use process of the high-temperature built-in bypass type stop valve, a thermocouple temperature measuring jack 14 is arranged on the side face of a valve body 1, a heating wire 12 is connected, the heating wire 12 is single-core and is wound into a sheet shape, the heating wire 12 is provided with a stainless steel protective outer skin and a magnesium oxide insulating layer, the inner core and the outer skin of the heating wire 12 are insulated by magnesium oxide, the heating wire has the function of heating and isolating, the high-temperature resistance is realized, a heating wire baffle 13 is arranged on the other side of the heating wire 12, the heating wire 12 is convenient to fix, the heat source is heated more efficiently and uniformly, a rotating device 9 comprises a motor, a speed reducer and the like, the output end of the rotating device 9 is fixedly connected with the top end of a valve rod 11, a hand wheel 10 is fixedly arranged outside the rotating device 9, the hand wheel 10 is fixed on the rotating device 9 through, play the supporting role, the valve gap 5, O type circle and the inner wall of valve body 1 link up the department and all are provided with seal gasket 6 and all play sealed effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. Built-in by pass type stop valve of high temperature, its characterized in that: comprises a valve body (1), a high-temperature device (2), a support (8), a support (7) and a rotating device (9), wherein a valve seat (3) is arranged at the bottom end of the valve body (1), the high-temperature device (2) is arranged at the inner wall of the valve seat (3), the high-temperature device (2) comprises a heating wire (12) and a heating wire baffle (13), the heating wire baffle (13) is fixedly arranged at the inner wall of the valve seat (3), the other surface of the heating wire baffle (13) is provided with the heating wire (12), a thermocouple temperature measuring jack (14) is arranged at the side surface of the valve body (1), the thermocouple temperature measuring jack (14) is connected with the high-temperature device (2), the rotating device (9) is arranged above the valve body (1), the valve body (1) and the support (7) is connected between the rotating device (9), the high-temperature-resistant valve is characterized in that a valve rod (11) is arranged above the high-temperature device (2), the other end of the valve rod (11) is fixedly connected to the rotating device (9), a valve clack (4) is arranged at the position, close to the high-temperature device (2), of the bottom end of the valve rod (11), and a packing set (7) is arranged inside the valve body (1).
2. The high temperature built-in bypass shutoff valve of claim 1, wherein: the rotating device (9) comprises a motor, a speed reducer and the like, and the output end of the rotating device (9) is fixedly connected with the top end of the valve rod (11).
3. The high temperature built-in bypass shutoff valve of claim 1, wherein: and the two ends of the support (8) are fixedly connected with the valve body (1) and the rotating device (9) respectively through bolts.
4. The high temperature built-in bypass shutoff valve of claim 1, wherein: a hand wheel (10) is fixedly arranged outside the rotating device (9), and the hand wheel (10) is fixed on the rotating device (9) through a bolt.
5. The high temperature built-in bypass shutoff valve of claim 1, wherein: the heating wire (12) is single core, encircles into the slice, heating wire (12) have stainless steel protection crust and magnesium oxide insulating layer, be insulated by magnesium oxide between the inner core of heating wire (12) and the crust.
6. The high temperature built-in bypass shutoff valve of claim 1, wherein: and the top end of the valve seat (3) is provided with a valve cover (5) which is matched with the valve seat (3) to be clamped with each other.
7. The high temperature built-in bypass shutoff valve of claim 1, wherein: the valve rod (11) penetrates through the inside of the valve body (1) and is provided with an O-shaped ring, and sealing gaskets (6) are arranged at the joint of the inner walls of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408046.6A CN111059351A (en) | 2019-12-31 | 2019-12-31 | High-temperature built-in bypass type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911408046.6A CN111059351A (en) | 2019-12-31 | 2019-12-31 | High-temperature built-in bypass type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059351A true CN111059351A (en) | 2020-04-24 |
Family
ID=70305379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911408046.6A Withdrawn CN111059351A (en) | 2019-12-31 | 2019-12-31 | High-temperature built-in bypass type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059351A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128388A (en) * | 2020-11-03 | 2020-12-25 | 安徽龙泽实业有限公司 | Pneumatic stop valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070022564A (en) * | 2005-08-22 | 2007-02-27 | (주)모토닉 | Valve system for controlling the pure water flow |
| CN101109448A (en) * | 2007-06-18 | 2008-01-23 | 中信锦州铁合金股份有限公司 | Heating high temperature valve and uses thereof |
| JP2011152431A (en) * | 2007-08-31 | 2011-08-11 | Panasonic Corp | Heater unit and toilet seat device using the same |
| CN202226913U (en) * | 2011-10-10 | 2012-05-23 | 河北汉盛光电科技有限公司 | Magnetron sputtering uniform heating device |
| CN207997487U (en) * | 2018-03-20 | 2018-10-23 | 陕西延长新大复合材料科技有限公司 | A kind of fiberglass pipeline winding external heating apparatus |
-
2019
- 2019-12-31 CN CN201911408046.6A patent/CN111059351A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070022564A (en) * | 2005-08-22 | 2007-02-27 | (주)모토닉 | Valve system for controlling the pure water flow |
| CN101109448A (en) * | 2007-06-18 | 2008-01-23 | 中信锦州铁合金股份有限公司 | Heating high temperature valve and uses thereof |
| JP2011152431A (en) * | 2007-08-31 | 2011-08-11 | Panasonic Corp | Heater unit and toilet seat device using the same |
| CN202226913U (en) * | 2011-10-10 | 2012-05-23 | 河北汉盛光电科技有限公司 | Magnetron sputtering uniform heating device |
| CN207997487U (en) * | 2018-03-20 | 2018-10-23 | 陕西延长新大复合材料科技有限公司 | A kind of fiberglass pipeline winding external heating apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128388A (en) * | 2020-11-03 | 2020-12-25 | 安徽龙泽实业有限公司 | Pneumatic stop valve |
| CN112128388B (en) * | 2020-11-03 | 2023-06-30 | 安徽龙泽实业有限公司 | Pneumatic stop valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200424 |