CN202646737U - High-temperature angle type stop valve - Google Patents
High-temperature angle type stop valve Download PDFInfo
- Publication number
- CN202646737U CN202646737U CN 201220284595 CN201220284595U CN202646737U CN 202646737 U CN202646737 U CN 202646737U CN 201220284595 CN201220284595 CN 201220284595 CN 201220284595 U CN201220284595 U CN 201220284595U CN 202646737 U CN202646737 U CN 202646737U
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- valve
- valve body
- temperature angle
- protective coating
- thermal
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Abstract
The utility model relates to a high-temperature angle type stop valve in the field of valves. The high-temperature angle type stop valve comprises a valve body which is provided with a hollow valve cavity, a valve cover is connected with the upper end of the valve body, a valve rod penetrates through the valve cover and stretches into the valve body, a valve clack is arranged at the lower end of the valve rod, a valve seat corresponding to the valve clack is arranged in the valve cavity, and a control mechanism is arranged at the upper end of the valve rod. A separation mechanism is arranged on the inner wall of the valve cavity, the separation mechanism consists of multiple thermal insulating layers which are arranged in laminating mode, each thermal insulating layer is in the shape of a round barrel with an opening on the side face, the openings of each two adjacent thermal insulating layers are arranged in staggered mode, a support round barrel is arranged on the inner side of the whole thermal insulating layers, a plurality of gas flow holes are arranged in the support round barrel, a ridge-shaped protrusion is arranged on each thermal insulating layer, and the ridge-shaped protrusions of each two adjacent thermal insulating layers are arranged in staggered mode. When gas medium flows through the high-temperature angle type stop valve, the gas medium flows through the gas flow holes and then enters the space among the thermal insulating layers layer by layer, and therefore the pressure which decreases rapidly of the high-temperature angle type stop valve is balanced, the purpose of diffusion cooling is achieved, the surface of the valve body is enabled to have a low temperature, and the repair cycle of the high-temperature angle type stop valve is long.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of resistant to elevated temperatures valve.
Background technique
In the prior art, a kind of high temperature Angle Stop valves is arranged, its structure comprises the valve body of hollow, valve body lower end is provided with import, the valve body side is provided with outlet, valve body upper end is sealedly connected with valve gap, between valve gap and the valve body through in flange be connected with gasket seal, valve rod passes valve gap and extend in the valve body, the valve rod lower end is provided with flap, be provided with the valve seat corresponding with flap in the described valve body, valve seat and valve body are integrally manufactured, after flap falls into valve seat, be cut off between the import outlet, after flap breaks away from valve seat, be switched between import and the outlet, fluid be able to by; Be provided with stuffing box packing between valve gap and the valve rod, be set with the gland for the press seal filler on the valve rod, described gland is connected through adjusting screw with valve gap, and the valve rod upper end is provided with operating-controlling mechanism.This valve is one of visual plant of coal chemical engineering equipment system, it is a kind of stop valve for high temperature gas medium, be installed on the emptying pipeline of high temperature hot-blast furnace, as a kind of special special valve of directly discharging unnecessary high-temperature hot-air to atmosphere, and the position of installing is also very high.The temperature of hot blast is between 1000 ℃ ~ 1200 ℃, and working pressure is at 2.5MPa.Contain CO, H in the gas medium
2The Korrosionsmediums such as S, so valve is being opened temperature greatly about about 1000 ℃, and high temperature gas medium passes through valve very soon under the pressure of 2.5MPa.Be the normal operation of assurance device, require that this stop valve is high temperature resistant, reliable, the long service life of sealing.But the client finds to install and uses a period of time after in a few years using some makers' this valves, and leakage phenomenon easily occurs for pad and the sealing surface of seat place of valve gap and valve body joint, so the valve quality guarantee cycle is short, the valve detachable maintaining is very tired.The client successively changed various exotic material to this valve, even required manufactory that valve is carried out the service time that the lined ceramics coating prolongs valve to this valve, but effect is not clearly, the cycle of use or not ideal.
The model utility content
The purpose of this utility model provides a kind of high temperature Angle Stop valves, long-time withstand high temperatures, and the valve body surface temperature is low, prevents the material deformation of valve body under this high temperature, the sealing effect of flange, valve seat in the impact.Repair cycle is long.
The purpose of this utility model is achieved in that a kind of high temperature Angle Stop valves, comprise the valve body that is provided with the hollow valve pocket, valve body lower end is provided with import, the valve body side is provided with outlet, flange and sealing gasket are connected with valve gap in the warp of valve body upper end, valve rod passes valve gap and extend in the valve body, and the valve rod lower end is provided with flap, is provided with the valve seat corresponding with flap in the described valve pocket; Be provided with stuffing box packing between valve gap and the valve rod, be set with the gland for the press seal filler on the valve rod, described gland is connected through adjusting screw with valve gap, and the valve rod upper end is provided with operating-controlling mechanism; Described valve pocket inwall is provided with interrupter, and described interrupter comprises the thermal-protective coating of multiple superposed, and thermal-protective coating is the cylindrical shape of lateral opening, and the opening between the adjacent thermal-protective coating shifts to install; The inboard of thermal-protective coating integral body is provided with support cylinder, and described support cylinder is provided with some airflow holes, and thermal-protective coating is provided with the ridged projection, the ridged projection arranged in dislocation between the adjacent thermal-protective coating.
During this valve working, flap breaks away from valve seat, import and outlet are connected, when high temperature gas medium flows through, gas also successively enters between each thermal-protective coating by the airflow hole on the support cylinder, the pressure that descends rapidly with compensation flap and the purpose that reaches the diffusion cooling guarantee that valve shell is below 450 ℃.The experiment proved that the appearance temperature of valve body is not above 300 ℃.Guarantee the rigidity of valve body material, both saved the energy, prolonged again the working life of valve.Its beneficial effect is can long-time withstand high temperatures with: this stop valve, and the valve body surface temperature is low, and the repair cycle is long.
For making things convenient for the installation of thermal-protective coating, described valve seat and valve body are Split type structure, and the valve pocket of valve seat through being threaded in valve body is inboard.
As further improvement of the utility model, described flap is parabola shaped towards the surface of import.Can prevent the erosion of high temperature media.
For ease of giving stem guiding, guarantee to use reliably, described valve rod is provided with the guiding clamping plate, and the valve gap upper end uprightly is provided with the guide rod adaptive with the clamping plate that lead.During switch valve, under the guiding of guide rod, valve rod can only uprightly rise or descend, and avoids valve rod to swing and destroys sealing.
As further improvement of the utility model, described thermal-protective coating is provided with the 5-30 layer.Be preferably 24 layers.Can guarantee that the valve body surface temperature is lower.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the interrupter structural representation among Fig. 1.
Fig. 3 is the insulating layer structure schematic representation.
Wherein, 1 import, 2 interrupters, 201 thermal-protective coatings, 202 support cylinder, 203 airflow holes, 204 ridgeds projection, 3 outlets, 4 guide rods, 5 guiding clamping plate, 6 operating-controlling mechanisms, 7 glands, 8 stuffing box packing, 9 valve gaps, 10 sealing gaskets, 11 valve pockets, 12 valve rods, 13 valve bodies, 14 flaps, 15 valve seats.
Embodiment
As Figure 1-3, be a kind of high temperature Angle Stop valves, its structure comprises valve body 13, be provided with the valve pocket 11 of hollow in the valve body 13, valve body 13 lower ends are provided with import 1, and valve body 13 sides are provided with outlet 3, flange and sealing gasket 10 are connected with valve gap 9 in the warp of valve body 13 upper ends, valve rod 12 passes valve gap 9 and extend in the valve body 13, and valve rod 12 lower ends are provided with flap 14, and flap 14 is parabola shaped towards the surface of import 1; Be provided with the valve seat 15 corresponding with flap 14 in the valve pocket 11; Be provided with stuffing box packing 8 between valve gap 9 and the valve rod 12, be set with the gland 7 for press seal filler 8 on the valve rod 12, gland 7 and valve gap 9 are connected through adjusting screw, and valve rod 12 upper ends are provided with operating-controlling mechanism 6; Valve pocket 11 inwalls are provided with interrupter 2, and interrupter 2 comprises the thermal-protective coating 201 of multiple superposed, and thermal-protective coating 201 is the cylindrical shape of lateral opening, and the opening between the adjacent thermal-protective coating 201 shifts to install; The inboard of thermal-protective coating 201 integral body is provided with support cylinder 202, and support cylinder 202 is made by the thick high temperature resistant stainless steel plate of 3mm; Support cylinder 202 is provided with some airflow holes 203, and thermal-protective coating 201 is provided with ridged projection 204, ridged projection 204 arranged in dislocation between the adjacent thermal-protective coating 201.Valve seat 15 and valve body 13 are Split type structure, valve pocket 11 inboards of valve seat 15 through being threaded in valve body 13.Valve rod 12 is provided with guiding clamping plate 5, and valve gap 9 upper ends uprightly are provided with the guide rod 4 adaptive with the clamping plate 5 of leading.Thermal-protective coating 201 is provided with 24 layers, and each thermal-protective coating 201 is that the 316 stainless steel stamping-outs of 0.3mm are made by thickness, and the height of ridged projection 204 is 0.8mm.
Above-mentioned valve seat by Hardmetal materials casting form, material is STL21, and is fixing with being threaded into by the lower end of valve body.Flap material is high temperature resistant Cr-Mo material appearance spray C-W material.Valve rod is made by high temperature resistant, the high stainless steel of intensity, surface spraying weld Co-Cr-W Hardmetal materials.Middle flange gasket is 316 metallic shims.Valve gap has adopted the thickening elongate structure, has increased valve gap rigidity at high temperature.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technological scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characteristicss wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (5)
1. high temperature Angle Stop valves, comprise the valve body that is provided with the hollow valve pocket, valve body lower end is provided with import, the valve body side is provided with outlet, flange and sealing gasket are connected with valve gap in the warp of valve body upper end, valve rod passes valve gap and extend in the valve body, and the valve rod lower end is provided with flap, is provided with the valve seat corresponding with flap in the described valve pocket; Be provided with stuffing box packing between valve gap and the valve rod, be set with the gland for the press seal filler on the valve rod, described gland is connected through adjusting screw with valve gap, and the valve rod upper end is provided with operating-controlling mechanism; It is characterized in that: described valve pocket inwall is provided with interrupter, and described interrupter comprises the thermal-protective coating of multiple superposed, and thermal-protective coating is the cylindrical shape of lateral opening, and the opening between the adjacent thermal-protective coating shifts to install; The inboard of thermal-protective coating integral body is provided with support cylinder, and described support cylinder is provided with some airflow holes, and thermal-protective coating is provided with the ridged projection, the ridged projection arranged in dislocation between the adjacent thermal-protective coating.
2. a kind of high temperature Angle Stop valves according to claim 1, it is characterized in that: described valve seat and valve body are Split type structure, the valve pocket of valve seat through being threaded in valve body is inboard.
3. a kind of high temperature Angle Stop valves according to claim 1 and 2, it is characterized in that: described flap is parabola shaped towards the surface of import.
4. a kind of high temperature Angle Stop valves according to claim 1 and 2, it is characterized in that: described valve rod is provided with the guiding clamping plate, and the valve gap upper end uprightly is provided with the guide rod adaptive with the clamping plate that lead.
5. a kind of high temperature Angle Stop valves according to claim 1 and 2, it is characterized in that: described thermal-protective coating is provided with the 5-30 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284595 CN202646737U (en) | 2012-06-18 | 2012-06-18 | High-temperature angle type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284595 CN202646737U (en) | 2012-06-18 | 2012-06-18 | High-temperature angle type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646737U true CN202646737U (en) | 2013-01-02 |
Family
ID=47415846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220284595 Expired - Lifetime CN202646737U (en) | 2012-06-18 | 2012-06-18 | High-temperature angle type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633143B (en) * | 2014-12-26 | 2017-02-22 | 锦州高中压阀门制造有限公司 | Pneumatic abrasion-resisting angle stop valve |
-
2012
- 2012-06-18 CN CN 201220284595 patent/CN202646737U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633143B (en) * | 2014-12-26 | 2017-02-22 | 锦州高中压阀门制造有限公司 | Pneumatic abrasion-resisting angle stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU YIFA GROUP CO., LTD. Free format text: FORMER NAME: ZHENJIANG CASTING VALVE PLANT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Yangzhong City, Jiangsu province Zhenjiang City West 212221 town Gangbei Road No. 34 Patentee after: JIANGSU EVALVE GROUP CO., LTD. Address before: Yangzhong City, Jiangsu province Zhenjiang City West 212221 town Gangbei Road No. 34 Patentee before: Zhenjiang Casting Valve Factory Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yangzhong City, Jiangsu province Zhenjiang City West 212221 town Gangbei Road No. 34 Patentee after: Jiangsu billion valve Limited by Share Ltd Address before: Yangzhong City, Jiangsu province Zhenjiang City West 212221 town Gangbei Road No. 34 Patentee before: JIANGSU EVALVE GROUP CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |