CN210034543U - Water seal valve for high-temperature coal gas - Google Patents
Water seal valve for high-temperature coal gas Download PDFInfo
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- CN210034543U CN210034543U CN201920921458.9U CN201920921458U CN210034543U CN 210034543 U CN210034543 U CN 210034543U CN 201920921458 U CN201920921458 U CN 201920921458U CN 210034543 U CN210034543 U CN 210034543U
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Abstract
The utility model provides a water seal valve for high temperature coal gas. The top of the valve body of the water seal valve is provided with a valve body end cover, the bottom of the valve body is provided with a medium inlet, one side of the valve body is provided with a medium outlet, the other side of the valve body is provided with an inspection door, a movable valve plate is arranged in the valve body, a sealing cover is sleeved outside the movable valve plate, the movable valve plate is provided with a driving lead screw, the end part of the driving lead screw is provided with a lead screw nut, and the driving lead screw penetrates through the valve body end cover to be connected with a driving. The lower part of the valve body is provided with a water tank, and the lower part of the water tank is provided with a sewage cleaning pipe, a sewage discharge valve and a water level control pipe. The combined structure of the sealing cover and the movable valve plate in the valve not only can well control the coal gas flow state in the connection state, but also can well control the flash evaporation effect of high-temperature coal gas on water in the cutoff process, and the control on the environment is optimized.
Description
Technical Field
The utility model relates to valve and machinery, in particular to a water seal valve for high temperature coal gas.
Background
The modern industry uses clean energy, namely coal gas as fuel, so that the combustion efficiency of the fuel gas can be improved, and the emission of waste can be reduced. The efficiency of combustion of gas is improved by preheating and then conveying the gas, so that the valve for effectively controlling the equipment by the high-temperature gas is particularly important. The control of high-temperature gas has two main difficulties: 1. the gas temperature is high, the sealing performance requirement is reliable, and the selection of sealing materials is not easy; 2. the valve has large drift diameter and low pressure. To satisfy both conditions requires special handling of the valve structure.
The soft sealing material has good sealing performance but low temperature resistance. The metal material can resist high temperature, but the sealing capability is poor, and the processing precision is also extremely high, otherwise, the requirements cannot be met. The development of a valve structure with good high temperature resistance and good sealing performance is an urgent problem to be solved in the energy supply of modern industrial production.
Disclosure of Invention
The utility model aims to provide a water seal valve for high temperature coal gas.
The design idea of the invention is that the designed valve is in a heat insulation state to the outside, when the valve needs to be switched from a cut-off state to a switch-on state, the driving mechanism drives the driving screw rod to rotate according to a driving instruction, the rotating motion is converted into upward motion of the sealing cover through the screw rod nut, so that the sealing cover and the movable valve plate are lifted to the upper part of the valve body, and at the moment, high-temperature coal gas directly reaches the outlet of the valve body from the inlet, so that the pipeline switch-on of the valve body is. When the valve needs to be switched from the on state to the off state, the driving mechanism drives the screw rod to rotate reversely according to the driving instruction, the sealing cover and the movable valve plate are pushed to move downwards through the screw rod nut, the sealing cover is tightly attached to the end face of the air inlet of the valve body, and the gas in the valve is cut off. Because the designed valve is a high-temperature gas system under the use working condition, the safety is very important, and absolute sealing is needed, so that a water medium (which has good processing precision compensation) is added, and the requirement of reliable sealing is met by utilizing the height difference of water inside and outside the sealing cover. Meanwhile, the designed valve can be properly adjusted on site according to the process requirements and the actual working conditions (realized by controlling and adjusting the water level position), so that the safety and the reliability of the valve are improved.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a water-sealed valve for high-temperature gas, comprising: the water seal valve comprises a driving mechanism, a driving support, a screw nut, a packing gland, packing, a valve body end cover, a valve body, a water tank, a sewage cleaning pipe, a sewage discharge valve, a sealing cover, a water level control pipe, a movable valve plate and a driving screw rod.
The water seal valve is provided with a water tank at the lower part of the valve body, a sewage cleaning pipe is arranged at the lower part of the water tank, a sewage discharge valve is arranged at the bottom of the water tank, and one end of the water tank is provided with a water level control pipe and communicated with the water tank.
And the joint of the valve body end cover of the water seal valve and the driving screw rod is filled with filler, and the filler is compressed by a filler gland.
Compared with the prior art, the utility model discloses an actively the effect does:
1. the combined structure of the sealing cover and the movable valve plate in the valve not only can well control the gas flow state in the connection state, but also can well control the flash evaporation effect of high-temperature gas on water in the cutoff process, and the control on the environment is optimized;
2. when the valve body of the valve is closed to the outside and the valve plate, the valve body and the high-temperature coal gas are in a heat insulation state, the heat loss of the high-temperature coal gas is small, and the operation cost is low;
3. when the valve is used, the water level can be ensured to be constant in a water supplementing mode, and the sealing reliability cannot be reduced due to the opening and closing times;
4. the valve is sealed by taking water as a medium, and the medium material is easy to obtain and convenient to use;
5. the whole structure of the valve does not need high processing precision, the manufacturing cost is low, and the realization requirement is convenient.
Drawings
FIG. 1 is a schematic structural diagram of a water seal valve for high-temperature gas;
fig. 2 is a partial enlarged view of a water seal valve A for high-temperature coal gas.
In the figure: 1. the device comprises a driving mechanism, 2, a driving support, 3, a screw rod nut, 4, a packing gland, 5, packing, 6, a valve body end cover, 7, a valve body, 8, a water tank, 9, a sewage cleaning pipe, 10, a sewage discharging tank, 11, a sealing cover, 12, a water level control pipe, 13, a movable valve plate, 14, an inspection door, 15, a driving screw rod, 16, a medium inlet, 17 and a medium outlet.
Detailed Description
The technical solution of the present invention will be further described clearly and completely with reference to the accompanying drawings.
Referring to the attached drawings 1-2, a valve body end cover 6 is arranged at the top of a valve body 7 of the water seal valve, a medium inlet 16 is arranged at the bottom of the valve body 7, a medium outlet 17 is arranged at one side of the valve body 7, an inspection door 14 is arranged at the other side of the valve body 7, a movable valve plate 13 is arranged in the valve body 7, a sealing cover 11 is sleeved outside the movable valve plate 13, a driving screw rod 15 is arranged on the movable valve plate 13, a screw rod nut 3 is arranged at the end part of the driving screw rod 15, and the driving screw rod 15 penetrates through the valve body end cover 6 to be connected.
The water seal valve is characterized in that a water tank 8 is arranged at the lower part of the valve body 7, a sewage cleaning pipe 9 is arranged at the lower part of the water tank 8, a sewage discharge valve 10 is arranged at the bottom of the water tank 8, and a water level control pipe 12 is arranged at one end of the water tank 8 and communicated with the water tank 8.
And a filler 5 is arranged at the joint of the valve body end cover 6 of the water seal valve and the driving screw rod 15, and the filler 5 is tightly pressed by a filler pressing cover 4.
When the valve is in a connection state, the driving mechanism 1 drives the driving screw rod 15 arranged on the driving support 2 to rotate according to a driving instruction, the rotating motion is converted into upward motion of the sealing cover 11 through the screw rod nut 3, so that the sealing cover 11 and the movable valve plate 13 are lifted to the upper part of the valve body 7 and close to the valve body end cover 6, high-temperature coal gas directly reaches a medium outlet 17 on the valve body 7 through a medium inlet 16, and the pipeline connection of the valve body is realized.
When the valve needs to be switched from the on state to the off state, the driving electric device 1 drives the driving screw rod 15 arranged on the driving support 2 to rotate reversely according to the driving instruction, and the sealing cover 11 and the movable valve plate 13 are pushed to move towards the lower part of the valve body 7 through the screw rod nut 3, so that the sealing cover 11 is attached to the end face of the medium inlet 16 of the valve body 7, and the pipeline of the valve is cut off.
Because the use working condition of the water seal valve is a high-temperature gas system, the safety is very important, and absolute sealing is needed, so that a water medium (with good processing precision compensation) is added, and the requirement of reliable sealing is met by utilizing the height difference of water inside and outside the sealing cover 11 and injecting water into the water tank 8. Meanwhile, the sealing degree of the water seal valve can be properly adjusted on site, the water level in the water tank 8 is effectively controlled through the water level control pipe 12, the dirt cleaning pipe 9 arranged on one side of the bottom of the water tank 8 is used for cleaning dirt in the water tank 8, and the dirt is discharged out of the water tank 8 through the dirt discharge pipe 10, so that the cleanliness of water quality in the water tank 8 is ensured. The packing 5 and the packing gland 4 are arranged at the joint of the valve body end cover 6 and the driving screw rod 15 and are used for ensuring the sealing performance. An inspection door 14 installed at one side of the valve body 7 is used for inspection or repair of the valve.
Claims (3)
1. A water-sealed valve for high-temperature gas, comprising: actuating mechanism (1), drive support (2), screw-nut (3), gland (4), filler (5), valve body end cover (6), valve body (7), basin (8), clear soil pipe (9), blowoff valve (10), sealed cowling (11), water level control pipe (12), activity valve plate (13) and drive lead screw (15), its characterized in that: the top of a valve body (7) of the water seal valve is provided with a valve body end cover (6), the bottom of the valve body (7) is provided with a medium inlet (16), one side of the valve body (7) is provided with a medium outlet (17), the other side of the valve body (7) is provided with an inspection door (14), a movable valve plate (13) is arranged in the valve body (7), the outer part of the movable valve plate (13) is sleeved with a sealing cover (11), the movable valve plate (13) is provided with a driving screw rod (15), the end part of the driving screw rod (15) is provided with a screw rod nut (3), and the driving screw rod (15) penetrates through the valve body end cover (6) to be connected with a driving mechanism.
2. The water seal valve for high-temperature gas as claimed in claim 1, wherein: the water seal valve is characterized in that a water tank (8) is arranged at the lower part of the valve body (7), a sewage cleaning pipe (9) is arranged at the lower part of the water tank (8), a sewage discharge valve (10) is arranged at the bottom of the water tank (8), and a water level control pipe (12) is arranged at one end of the water tank (8) and communicated with the water tank (8).
3. The water seal valve for high-temperature gas as claimed in claim 1, wherein: and a filler (5) is arranged at the joint of the valve body end cover (6) of the water seal valve and the driving screw rod (15), and the filler (5) is compressed by a filler gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920921458.9U CN210034543U (en) | 2019-06-19 | 2019-06-19 | Water seal valve for high-temperature coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920921458.9U CN210034543U (en) | 2019-06-19 | 2019-06-19 | Water seal valve for high-temperature coal gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034543U true CN210034543U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920921458.9U Active CN210034543U (en) | 2019-06-19 | 2019-06-19 | Water seal valve for high-temperature coal gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503295A (en) * | 2020-04-22 | 2020-08-07 | 济南黄台煤气炉有限公司 | Novel wet-type disc valve structure for high-temperature gas |
-
2019
- 2019-06-19 CN CN201920921458.9U patent/CN210034543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503295A (en) * | 2020-04-22 | 2020-08-07 | 济南黄台煤气炉有限公司 | Novel wet-type disc valve structure for high-temperature gas |
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