CN213871236U - Colloid sealed high-temperature gas switch valve - Google Patents
Colloid sealed high-temperature gas switch valve Download PDFInfo
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- CN213871236U CN213871236U CN202022774367.2U CN202022774367U CN213871236U CN 213871236 U CN213871236 U CN 213871236U CN 202022774367 U CN202022774367 U CN 202022774367U CN 213871236 U CN213871236 U CN 213871236U
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Abstract
The utility model relates to a colloid sealing high-temperature gas switch valve, which comprises a valve body, a valve disc, a valve rod and a driver, wherein the valve body is fixedly connected on a through-flow pipeline of high-temperature gas equipment, the valve disc is a concave disc with an upward opening, the bottom surface of the valve disc is connected with the upper end of the valve rod, and a sealing element is arranged in the concave disc; the sealing element is composed of three layers, wherein the upper layer is a colloid, the lower layer is a high-temperature fiber blanket, and the middle layer is a mixed layer of the colloid and the high-temperature fiber blanket. The valve rod is arranged below the valve disc and downwards penetrates through the valve body to be connected with the driver, and the driver drives the valve rod and the valve disc to move up and down. In the design, the action part of the switch valve is designed at the lower part, and the colloid adhered to the opening of the gas pipe naturally falls off in the valve disc, so that the through flow of high-temperature gas is not influenced. The high-temperature resistant colloid and the high-temperature fiber blanket in the valve disc are used for composite plugging, and the sealing is reliable. The utility model discloses have: low manufacturing cost, stable and reliable switch, long service life, energy saving, water saving, safety, environmental protection and the like.
Description
Technical Field
The utility model relates to a high temperature coal gas seals ooff valve especially relates to an adopt high temperature resistant coal gas ooff valve that the colloid is sealed, belongs to high temperature gas seal technical field.
Background
The valve that traditional coal gas equipment was used for switching hot coal gas generally is wet water seal valve, promptly: water was used as the sealing medium. It has the advantages of simple structure, good sealing effect, simple operation, low cost and the like, thereby being widely used. However, the water seal has the following defects that 1, water is boiled due to high temperature of the coal gas, water is quickly evaporated, and water is mixed into the coal gas; 2. after the water seal valve is lack of water, water cannot be supplemented in time, and the closing failure is caused; 3. the leakage of the valve easily causes safety accidents. The traditional solution is to select valves such as a gas butterfly valve and a high-temperature ball valve for controlling high-temperature gas, but the valves are expensive, complex in structure, low in reliability, high in failure rate, poor in cost performance and short in service life. In order to solve the problems, the designer provides a high-temperature resistant fiber blanket arranged between the valve cover and the valve core, and the design overcomes the defects of wet water sealing to a certain extent, and has low manufacturing cost and long service life. However, due to the dry extrusion sealing, the extrusion force between the valve core and the valve cover is large, which puts high requirements on the valve rod and a power mechanism for pushing the valve rod to move, and simultaneously reduces the service life of the fiber blanket.
Disclosure of Invention
To the problem that the background art pointed out, the utility model provides a colloid seals high temperature coal gas ooff valve through the double seal to high temperature coal gas, realizes that the switch is reliable rapidly.
The technical scheme of the utility model is that the colloid sealing high-temperature gas switch valve comprises a valve body, a valve disc, a valve rod and a driver, wherein the valve body is fixedly connected on a through-flow pipeline of high-temperature gas equipment, and a gas inlet and a gas outlet are arranged on the valve body; the through-flow pipeline is communicated with the inner cavity of the valve body through a coal gas inlet of the valve body; the gas outlet of the valve body is arranged on the side wall of the valve body; the bottom surface and the valve rod upper end of valve disc are connected its characterized in that:
the valve disc is a concave disc with an upward opening, the bottom surface of the concave disc is paved with a high-temperature fiber blanket, the upper part of the high-temperature fiber blanket is provided with a colloid, and a colloid and high-temperature fiber blanket mixing layer is formed between the upper colloid and the lower high-temperature fiber blanket;
the valve rod penetrates through the valve body and is connected with the driver, and the driver drives the valve rod and the valve disc to move up and down.
The colloid is asphalt.
The driver is an air cylinder.
The driver is a rotating hand wheel.
Furthermore, the number of the cylinders is two, the two cylinders are symmetrically arranged along the axis of the valve rod, the cylinder body of each cylinder is fixed on the valve body, and one end of a single outlet rod in each cylinder is connected with one end of the valve rod.
The utility model discloses with the action part design of ooff valve in the lower part, the colloidal body of gas pipe mouth adhesion drops naturally in the valve disc, does not influence the through-flow of high temperature coal gas. The high-temperature resistant colloid and the high-temperature fiber blanket in the valve disc are used for composite plugging, the sealing is reliable, the water-shortage and air-leakage faults of the water-sealed valve are avoided, and no waste water is generated.
The utility model discloses have: low manufacturing cost, stable and reliable switch, long service life, energy saving, water saving, safety, environmental protection and the like.
Drawings
FIG. 1 is a schematic view of the open state of a valve according to a first embodiment of the present invention,
figure 2 is a schematic view of the valve closed state according to the first embodiment of the present invention,
figure 3 is a schematic view of the open state of the valve according to the second embodiment of the present invention,
fig. 4 is a schematic view of a valve closed state according to the second embodiment of the present invention.
In the attached drawings 1, 2, 3 and 4, 1 is a high-temperature gas generating device, 2 is a gas through-flow pipeline, 3 is a valve body, 4 is asphalt, 5 is a valve disc, 6 is a high-temperature fiber blanket, 7 is a cylinder, 8 is a valve rod, 9 is a hand wheel screw rod, a is a gas inlet, and b is a gas outlet.
Detailed Description
Fig. 1 and 2 show the first embodiment of the present invention, and the cylinder 7 is used for the valve rod power. When the cylinder 7 drives the valve rod 8 to move upwards to a certain position, the valve disc 5 blocks the high-temperature gas through-flow pipeline 2, and high-temperature gas generated by the high-temperature gas generating device 1 cannot flow out of the high-temperature gas through-flow pipeline 2. At the moment, the air outlet of the high-temperature gas through-flow pipeline 2 is immersed in the asphalt 4 and is extruded to tightly press the valve disc 5 through the high-temperature fiber blanket 6, and the high-temperature fiber blanket 6 and the asphalt 4 jointly seal the high-temperature gas in the high-temperature gas through-flow pipeline 2 and enter the inner cavity of the valve body 3. When the cylinder 7 drives the valve rod 8 to move downwards to a certain position, the high-temperature gas through-flow pipeline 2 is separated from the valve disc 5, the high-temperature fiber blanket 6 and the asphalt 4, and high-temperature gas generated by the high-temperature gas generating device 1 flows into the inner cavity of the valve body 3 from the gas inlet a of the high-temperature gas through-flow pipeline 2 and then enters next equipment from the gas outlet b through the inner cavity of the valve body 3.
As shown in figures 3 and 4, the second embodiment of the present invention adopts a handwheel for the valve rod power, the handwheel drives the valve rod 8 to move up and down through the forward and reverse rotation of the handwheel screw rod 9, the valve rod 8 drives the valve disc 5 to move up and down, and the working process is the same as the first embodiment.
Claims (5)
1. A colloid sealed high-temperature gas switch valve comprises a valve body, a valve disc, a valve rod and a driver, wherein the valve body is fixedly connected to a through-flow pipeline of high-temperature gas equipment, and a gas inlet and a gas outlet are arranged on the valve body; the through-flow pipeline is communicated with the inner cavity of the valve body through a coal gas inlet of the valve body; the gas outlet of the valve body is arranged on the side wall of the valve body; the bottom surface and the valve rod upper end of valve disc are connected its characterized in that:
the valve disc is a concave disc with an upward opening, the bottom surface of the concave disc is paved with a high-temperature fiber blanket, the upper part of the high-temperature fiber blanket is provided with a colloid, and a colloid and high-temperature fiber blanket mixing layer is formed between the upper colloid and the lower high-temperature fiber blanket;
the valve rod is arranged below the valve disc and downwards penetrates through the valve body to be connected with the driver, and the driver drives the valve rod and the valve disc to move up and down.
2. The colloid-sealed high-temperature gas switch valve according to claim 1, wherein: the colloid is asphalt.
3. The colloid-sealed high-temperature gas switch valve according to claim 1, wherein: the driver is an air cylinder.
4. The colloid-sealed high-temperature gas switch valve according to claim 1, wherein: the driver is a rotating hand wheel.
5. The colloid-sealed high-temperature gas switch valve according to claim 3, wherein: the two cylinders are symmetrically arranged along the axis of the valve rod, the cylinder body of each cylinder is fixed on the valve body, and one end of a single outlet rod in each cylinder is connected with one end of the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774367.2U CN213871236U (en) | 2020-11-26 | 2020-11-26 | Colloid sealed high-temperature gas switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774367.2U CN213871236U (en) | 2020-11-26 | 2020-11-26 | Colloid sealed high-temperature gas switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213871236U true CN213871236U (en) | 2021-08-03 |
Family
ID=77039736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022774367.2U Active CN213871236U (en) | 2020-11-26 | 2020-11-26 | Colloid sealed high-temperature gas switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213871236U (en) |
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2020
- 2020-11-26 CN CN202022774367.2U patent/CN213871236U/en active Active
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