CN204512962U - The anti-leakage gas drainage device of overvoltage rapid triggering - Google Patents
The anti-leakage gas drainage device of overvoltage rapid triggering Download PDFInfo
- Publication number
- CN204512962U CN204512962U CN201520119227.8U CN201520119227U CN204512962U CN 204512962 U CN204512962 U CN 204512962U CN 201520119227 U CN201520119227 U CN 201520119227U CN 204512962 U CN204512962 U CN 204512962U
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- China
- Prior art keywords
- lever
- leakage
- sealing gasket
- shrouding
- swing arm
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Abstract
The anti-leakage gas drainage device of overvoltage rapid triggering, comprise hydathode body, leakage preventer, leakage preventer comprises cylinder, floating drum, lever swing arm, lever dolly, sealing gasket, shrouding, spill pipe, it is characterized in that: leakage preventer shrouding lower surface fixes a position-limited lever vertically downward, position-limited lever length meets the following conditions: when the rotation of lever swing arm inhour touches position-limited lever lower end surface, the space angle between the sealing gasket that the lever swing arm the other end is fixed and the shrouding of level is equal to or less than 45 degree.Advantage is: when gas pipe line overvoltage punctures hydathode body cavity liquid, before high pressure draught rushes at flowing hole, air-flow first will impact sealing gasket, it is upwards held up and helps it to close flowing hole, avoiding coal gas excessive leakage accidents caused.
Description
Technical field
The utility model relates to coal gas drainer, the anti-leakage gas drainage device of particularly overvoltage rapid triggering.
Background technique
Anti-leakage gas drainage device major function is the condensed water collected by the condensed water adapter between gas pipe line and hydathode in gas pipe line, under hydathode adds water state for a long time, condensed water mixing is discharged by leakage preventer, can also be cleared up it by coal gas drainer hand hole and blowdown valve when the precipitation of collecting condensed water generation is too much.The normal work of anti-leakage gas drainage device is completed by leakage preventer, and when the water level in hydathode cavity is lower, leakage preventer closes, and prevents gas leakage; When the water level in hydathode cavity is higher, leakage preventer is opened, and current are discharged by sealed mouth, stop by water seal, and coal gas cannot overflow
Common anti-leakage gas drainage device is by hydathode body, leakage preventer and form, four cavitys are divided in hydathode body, condensed water enters hydathode body first cavity vertical tube from hydathode body upper part water inlet gate valve, vertical tube stretches into bottom after inserting hydathode body first cavity end face, inverted L-shaped pipe is provided with in other three cavitys, after condensed water is discharged from first cavity bottom, enter next chamber top inverted L-shaped pipe by space overflow between chamber, vertical tube, flow through successively in upper and lower S shape second and third, four chambers.Therefore the water seal height of hydathode should be the total height of four cavity water pipes, and the pressure that water seal height produces is generally 2.5 times of gas pipe line pressure maximum.Condensed water enters its device inner chamber through flow tube in the middle part of the 4th chamber bottom leakage preventer.Hydathode body also has a filler, three relief openings, two hand holes, two blowdown valves, and hydathode body is by filler, also adds water together by three relief openings time urgent.Hand hole and blowdown valve mainly play blowdown effect.
Leakage preventer is made up of cylinder, floating drum, lever swing arm, lever dolly, sealing gasket, shrouding, spill pipe, and wherein floating drum, lever swing arm, lever dolly, sealing gasket form leverage.When anhydrous in coal gas drainer cavity or water level is low time, floating drum gravitate is in lowest order, and leverage makes sealing gasket be shut by the flowing hole of shrouding, and coal gas drainer is in sealing state and prevents gas leakage; Leakage preventer overflow is entered when water level rises to a certain degree in coal gas drainer cavity, floating drum rises by floating function and holds up lever swing arm one end, sealing gasket decline is separated with shrouding by leverage, opened discharge orifice, and current, are discharged to overflow through spill pipe by sealed mouth.
The defect of this structure is:
When 1 coal gas drainer is stressed comparatively greatly and changes frequent, sealing gasket amplitude of fluctuation is large, leakage preventer triggers comparatively slow, causes a small amount of gas leakage.
2, the movable scope of floating drum is little, easily blocks.
3, spill pipe is fixed, and drainage position cannot regulate.
4, when gas pipe line moment overvoltage, high pressure air fails to be convened for lack of a quorum and punctures hydathode intrinsic chamber liquid, directly pour leakage preventer, also first can promote condensed water shortly before pouring leakage preventer and enter leakage preventer at a high speed, buoyancy is by the sealing gasket high speed opening in lever swing arm, sealing gasket subtended angle is in maximum rating, almost with shrouding in vertical state; Or just sealing gasket subtended angle is originally just in maximum rating, almost with shrouding in vertical state.After then generation high pressure draught pours leakage preventer, coal gas can break through flowing hole at a high speed, and gas leakage amount is larger.High pressure draught does not almost have resistance when flowing through sealing gasket, because sealing gasket plane is almost parallel with airflow direction.
Summary of the invention
The utility model object, for overcoming above-mentioned defect, provides a kind of anti-leakage gas drainage device of overvoltage rapid triggering.
The utility model scheme is: comprise hydathode body, leakage preventer, leakage preventer comprises cylinder, floating drum, lever swing arm, lever dolly, sealing gasket, shrouding, spill pipe, it is characterized in that: leakage preventer shrouding lower surface fixes a position-limited lever vertically downward, position-limited lever length meets the following conditions: when the rotation of lever swing arm inhour touches position-limited lever lower end surface, the space angle between the sealing gasket that the lever swing arm the other end is fixed and the shrouding of level is equal to or less than 45 degree.
The utility model has the advantage of: when gas pipe line overvoltage punctures hydathode body cavity liquid, before high pressure draught rushes at flowing hole, air-flow first will impact sealing gasket, it upwards held up and helps it to close flowing hole, avoiding coal gas excessive leakage accidents caused.
accompanying drawing illustrates:
Fig. 1 is prior art structural representation.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the K portion enlarged view of Fig. 1.
Fig. 4 is the maximum subtended angle phase diagram of prior art leakage preventer sealing gasket.
Fig. 5 is the utility model structural representation.
Fig. 6 is the maximum subtended angle phase diagram of the utility model leakage preventer sealing gasket.
embodiment:
The utility model structure comprises hydathode body 1, leakage preventer 3, leakage preventer 3 comprises cylinder 5, floating drum 10, lever swing arm 8, lever dolly 9, sealing gasket 7, shrouding 6, spill pipe 2, it is characterized in that: leakage preventer 3 shrouding 6 lower surface fixes a position-limited lever 11 vertically downward, position-limited lever 11 length meets the following conditions: when the rotation of lever swing arm 8 inhour touches position-limited lever 11 lower end surface, the space angle between the sealing gasket 7 that lever swing arm 8 the other end is fixed and the shrouding 6 of level is equal to or less than 45 degree.
Shrouding 6 is set up the position-limited lever 11 of lever, the maximum subtended angle being controlled sealing gasket 7 by the up restriction on the right side of restriction lever swing arm 8 is reduced, like this when hydathode body 1 is breakdown, the area that the sealing gasket 7 being less than 45 degree of space subtended angles is in barrier air moving direction immediately below sealed mouth 2 reaches the 70-80% of sealing gasket 7 area, promoting first to be about to sealing gasket 7 by stream pressure holds up rapidly closed, and the coal gas that over-voltage breakdown produces is minimum from sealed mouth 2 leakage rate.Change floating drum 10 shape, change into cylindrical by original oval flat, increase leakage preventer 3 cavity diameter simultaneously, to increase the movable scope of floating drum 10, prevent stuck.Loose joint flexible pipe is installed additional in spill pipe 4 bottom.
By the motion of drawing simulation floating drum 10, lever swing arm 8, sealing gasket 7, the position of lever swing arm 8 the other end is recorded when sealing gasket 7 is rotated down 45 °, measure the distance of shrouding 6, one piece of thickness 4mm is installed additional again on shrouding 6, the corrosion resistant plate of width 30mm, when making sealing gasket be rotated down 45 °, the bolt of lever swing arm 8 the other end is just blocked by corrosion resistant plate thus limits the motion of sealing gasket 8.Increase leakage preventer 3 cavity diameter, change φ 245 into by φ 219.Install loose joint flexible pipe additional in spill pipe 4 bottom, during draining, flexible pipe is put into the position wanting draining.
Claims (1)
1. the anti-leakage gas drainage device of overvoltage rapid triggering, comprise hydathode body (1), leakage preventer (3), leakage preventer (3) comprises cylinder (5), floating drum (10), lever swing arm (8), lever dolly (9), sealing gasket (7), shrouding (6), spill pipe (2), it is characterized in that: leakage preventer (3) shrouding (6) lower surface fixes a position-limited lever (11) vertically downward, position-limited lever (11) length meets the following conditions: when the rotation of lever swing arm (8) inhour touches position-limited lever (11) lower end surface, space angle between the sealing gasket (7) that lever swing arm (8) the other end is fixing and the shrouding (6) of level is equal to or less than 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119227.8U CN204512962U (en) | 2015-02-28 | 2015-02-28 | The anti-leakage gas drainage device of overvoltage rapid triggering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119227.8U CN204512962U (en) | 2015-02-28 | 2015-02-28 | The anti-leakage gas drainage device of overvoltage rapid triggering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512962U true CN204512962U (en) | 2015-07-29 |
Family
ID=53710939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119227.8U Expired - Fee Related CN204512962U (en) | 2015-02-28 | 2015-02-28 | The anti-leakage gas drainage device of overvoltage rapid triggering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063098A (en) * | 2021-03-24 | 2021-07-02 | 新兴铸管股份有限公司 | Novel prevent leaking coal gas drainer |
-
2015
- 2015-02-28 CN CN201520119227.8U patent/CN204512962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063098A (en) * | 2021-03-24 | 2021-07-02 | 新兴铸管股份有限公司 | Novel prevent leaking coal gas drainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 |