CN203239376U - Tunnel construction ventilation device for partial outburst of gas - Google Patents
Tunnel construction ventilation device for partial outburst of gas Download PDFInfo
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- CN203239376U CN203239376U CN 201320243454 CN201320243454U CN203239376U CN 203239376 U CN203239376 U CN 203239376U CN 201320243454 CN201320243454 CN 201320243454 CN 201320243454 U CN201320243454 U CN 201320243454U CN 203239376 U CN203239376 U CN 203239376U
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Abstract
The utility model discloses a tunnel construction ventilation device for partial outburst of gas. A vent pipe (3) of the tunnel construction ventilation device for the partial outburst of the gas is connected with a tee joint (3c) in series on the portion (1C) with partial outburst of the gas of a tunnel. The tunnel construction ventilation device for the partial outburst of the gas is adopted for carrying out ventilation on the tunnel with the partial outburst of the gas, and the gas in an area with the partial outburst of the gas can be exhausted out of the tunnel efficiently. Meanwhile, the tunnel construction ventilation device for the partial outburst of the gas is convenient to mount, does not influence the transportation of the tunnel, is low in manufacturing cost, and reduces cost of tunnel construction.
Description
Technical field
The utility model relates to a kind of for the outstanding construction ventilation of tunnel device of local gas.
Background technology
In the constructing tunnel, inevitably produce some pernicious gases and be discharged in the tunnel air, cause the pollution to tunnel air.Especially when Tunnel Passing coal measure strata and richness were deposited the gas area, the gas that is trapped in coal seam or the coal seam country rock can constantly discharge, thereby Gas Disaster occurs; If gas, oxygen and incendiary source three elements condition are suitable, gas explosion accident will occur, bring safely very large loss for property and life, society is caused significant impact.Therefore, must carry out prevention and the improvement of gas tunnel Gas Disaster.Construction ventilation is prevention and the basic means of administering Gas Disaster in the gas tunnel construction, realization safety in production.
The major way of construction ventilation has:
1, forced ventilation, its way is: the air outlet that ventilation fan is arranged on hole, air chimney is located near the face, and under the effect of blower fan, fresh air is delivered to face through air chimney outside the hole, the dilution pollutant, foul atmosphere is then drained into outside the hole by tunnel.
2, ventilation by ducts, its way is: when the construction of double-hole tunnel, in positive tunnel portal, ventilation fan one is set, the air outlet of the air chimney one that is connected with ventilation fan one is located near the face, fresh air is delivered to positive tunnel tunnel face through ventilation fan one, air chimney one outside the hole, dilution pollutant, foul atmosphere then flow into or secondary tunnel via the transverse passage-way of close face; Simultaneously, in positive tunnel portal ventilation fan two is being set, the air chimney two that is connected with ventilation fan two passes that the transverse passage-way of close face arrives near the face in secondary tunnel, and fresh air is delivered to secondary tunnel tunnel face through air chimney two outside the hole, dilute pollutant; And at the hole in secondary tunnel exhaust fan is set, near the foul atmosphere that air chimney one, two is delivered to the secondary tunnel tunnel face is discharged outside the hole by secondary tunnel.
As there being the local gas outburst area in the tunnel: to forced ventilation, then set up an exhaust fan in the Gas Outburst zone, should locate the rapider effective discharge of gas tunnel.To ventilation by ducts, then set up a forced blower fan in the Gas Outburst zone in positive tunnel, should locate the rapider effective remittance of gas and discharge in the air-flow; Also by setting up an exhaust fan, should locate that gas is rapider effectively discharges in the Gas Outburst zone in secondary tunnel outside the hole.The problem of its existence is: jet blower forced or pull-out type is bulky, both has been not easy to install, also can the transportation of equipment and material be impacted, and gas overflowing has uncertainty, more aggravated difficulty and the impact on transporting of installing.And the cost of blower fan is high, has also increased the cost of constructing tunnel.
The utility model content
The purpose of this utility model just provides a kind of for the outstanding construction ventilation of tunnel device of local gas, adopt this device to existing the outstanding tunnel of local gas to ventilate, can effectively the gas of local gas outburst area be discharged outside the hole, simultaneously, it is easy for installation, do not affect the transportation in tunnel, and cost is low, lowers the cost of constructing tunnel.
The first technical scheme that its purpose that realizes the utility model adopts is:
A kind ofly comprise that for the outstanding construction ventilation of tunnel device of local gas the forced ventilation machine that is arranged on tunnel portal, the air intake of air chimney link to each other with the forced ventilation machine, the air outlet of air chimney is located near the face in tunnel; It is characterized in that: described air chimney connects tee junction in the local gas protuberance bit string in tunnel.
Above-mentioned the first technical scheme is applicable to the construction ventilation of the outstanding single bore tunnel of local gas, and its course of work and principle are:
Under the effect of forced ventilation, fresh air is delivered to face through air chimney outside the hole, the dilution pollutant, and foul atmosphere is drained into outside the hole by tunnel with discharging air-flow.Simultaneously, to this Gas Outburst zone, dilution and in time remittance discharge air-flow drained into outside the hole tee junction that air chimney connects in local gas protuberance bit string rapidly thereby should locate gas by its mouth of pipe submitting portion fresh air.
The second technical scheme that its purpose that realizes the utility model adopts is:
A kind of for the outstanding construction ventilation of tunnel device of local gas, comprise that the forced ventilation machine one that is arranged on positive tunnel portal, the air intake of air chimney one link to each other with forced ventilation machine one, the air outlet of air chimney one is located near the face in positive tunnel, is provided with the transverse passage-way in the positive tunnel of perforation and secondary tunnel near the face in positive tunnel; At positive tunnel portal ventilation fan two is set, the air chimney two that is connected with ventilation fan two passes the face that the transverse passage-way of close face arrives secondary tunnel; And at the hole in secondary tunnel exhaust fan is set, it is characterized in that: described air chimney one connects tee junction in the local gas protuberance bit string in positive tunnel; Perhaps air chimney two connects tee junction in the local gas protuberance bit string in secondary tunnel.
Above-mentioned the second technical scheme is applicable to the construction ventilation of double-hole tunnel, and its course of work and principle are:
Fresh air is delivered to positive tunnel tunnel face through ventilation fan one, air chimney one outside the hole, dilution pollutant, foul atmosphere then flow into secondary tunnel via the transverse passage-way of close face; Simultaneously, fresh air is also delivered to secondary tunnel tunnel face through air chimney two outside the hole, the dilution pollutant; The exhaust fan that secondary tunnel portal arranges is discharged by secondary tunnel near the foul atmosphere that air chimney one, two is delivered to the secondary tunnel tunnel face outside the hole.
Further be, air chimney one at the tee junction of positive tunnel serial connection by its mouth of pipe submitting portion fresh air, thereby with the gas at the outstanding position of positive tunnel local gas rapidly dilution and in time importing discharge air-flow and flow into secondary tunnel via the transverse passage-way of close face; The tee junction that the local gas protuberance bit string of air chimney two in secondary tunnel connects is by its mouth of pipe submitting portion fresh air, thereby with the rapidly dilution and in time import and discharge air-flow through discharging outside the hole by secondary tunnel of the gas at the outstanding position of secondary tunnel local gas.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is by the tee junction of air chimney in outstanding (gathering) position of local gas serial connection, mouth of pipe submitting portion fresh air by tee junction, with the rapidly dilution and in time import and discharge air-flow and outside the hole, discharge of the gas at the outstanding position of local gas, can quickly and effectively the gas at outstanding (gathering) position of local gas be discharged, guarantee well-ventilated, the construction safety in tunnel.Than forced or pull-out type jet blower, the tee junction volume is very little, both has been convenient to install, and also can the transportation of equipment and material not impacted fully.And the price of tee junction has obviously reduced the cost of constructing tunnel also far below the cost of blower fan.
The tee junction of the first technical scheme of the present utility model is the skew T joint, and a mouth of pipe of skew T joint is towards tunnel portal.
Adopt a mouth of pipe towards the skew T joint at hole, can better dilute the outstanding position of local gas gas and with discharge air-flow and converge, further improve ventilation of the present utility model and discharge the gas effect.
The tee junction of serial connection is the skew T joint on the air chimney one of the second technical scheme of the present utility model, and its mouth of pipe is towards the face in positive tunnel, and the tee junction of serial connection is the skew T joint on the air chimney two, and its mouth of pipe is towards the hole in secondary tunnel.
Like this, a mouth of pipe of the skew T joint in the positive tunnel is towards the face in positive tunnel, a mouth of pipe of the skew T joint in the secondary tunnel is towards secondary tunnel portal, prop up the direction of air that the mouth of pipe blows out from the skew T joint consistent with gas flow direction in the hole, can better dilute the outstanding position of local gas gas and with discharge air-flow and converge, further improve ventilation of the present utility model and discharge the gas effect.
The utility model is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Arrow among Fig. 1-2 represents the direction of Air Flow.
The specific embodiment
Embodiment one
Fig. 1 illustrates, the first specific embodiment of the present utility model is, a kind of for the outstanding construction ventilation of tunnel device of local gas, comprise that the forced ventilation machine 2 that is arranged on tunnel portal 1A, the air intake of air chimney 3 link to each other with forced ventilation machine 2, the air outlet of air chimney 3 is located near the face 1B in tunnel; Described air chimney 3 is at the outstanding position 1C serial connection of the local gas in tunnel tee junction 3c.
This routine tee junction 3c is the skew T joint, and a mouth of pipe of skew T joint is towards tunnel portal 1A.
Embodiment two
Fig. 2 illustrates, the second specific embodiment of the present utility model is, a kind of for the outstanding construction ventilation of tunnel device of local gas, the air intake that comprises forced ventilation machine one 2A, air chimney one 3A that are arranged on positive tunnel portal 1 ' A links to each other with forced ventilation machine one 2A, the air outlet of air chimney one 3A is located near the face 1 ' B in positive tunnel, is provided with the transverse passage-way 6 in the positive tunnel 1 ' of perforation and secondary tunnel 4 near the face 1 ' B in positive tunnel; At positive tunnel portal 1 ' A ventilation fan two 2B are set, air chimney two 3B that are connected with ventilation fan two 2B pass the face 4B in the secondary tunnel 4 of transverse passage-way 6 arrival of the face 1 ' B in close positive tunnel; And at the hole in secondary tunnel 4 exhaust fan 7 is set, it is characterized in that: described air chimney one 3A is at the outstanding position 1C ' serial connection of the local gas in positive tunnel 1 ' tee junction 3c '; Perhaps air chimney two 3B are at the outstanding position 4C serial connection of the local gas in secondary tunnel 4 tee junction 3d.
The tee junction 3c ' of the upper serial connection of this routine air chimney one 3A be the skew T joint, and its mouth of pipe is towards the face 1 ' B in positive tunnel, and the upper tee junction 3d that is connected in series of described air chimney two 3B is the skew T joint, and its mouth of pipe is towards the hole in secondary tunnel 4.
Claims (4)
1. one kind is used for the outstanding construction ventilation of tunnel device of local gas, comprise that the forced ventilation machine (2) that is arranged on tunnel portal (1A), the air intake of air chimney (3) link to each other with forced ventilation machine (2), the air outlet of air chimney (3) is located near the face (1B) in tunnel; It is characterized in that: described air chimney (3) is at the outstanding position (1C) of the local gas in tunnel serial connection tee junction (3c).
It is 2. according to claim 1 that a kind of it is characterized in that: described tee junction (3c) be the skew T joint for the outstanding construction ventilation of tunnel device of local gas, and the skew T joint prop up the mouth of pipe towards tunnel portal (1A).
3. one kind is used for the outstanding construction ventilation of tunnel device of local gas, comprise that the forced ventilation machine one (2A) that is arranged on positive tunnel portal (1 ' A), the air intake of air chimney one (3A) link to each other with forced ventilation machine one (2A), the air outlet of air chimney one (3A) is located near the face (1 ' B) in positive tunnel, is provided with the transverse passage-way (6) in the positive tunnel of perforation (1 ') and secondary tunnel (4) near the face (1 ' B) in positive tunnel; At positive tunnel portal (1 ' A) ventilation fan two (2B) is set, the air chimney two (3B) that is connected with ventilation fan two (2B) passes the face (4B) that the transverse passage-way (6) of the face (1 ' B) in close positive tunnel arrives secondary tunnel (4); And at the hole of secondary tunnel (4) exhaust fan (7) is set, it is characterized in that: described air chimney one (3A) is (1C ') serial connection tee junction (3c ') at the outstanding position of the local gas in positive tunnel (1 '); Perhaps air chimney two (3B) is at the outstanding position (4C) of the local gas of secondary tunnel (4) serial connection tee junction (3d).
4. according to claim 3 a kind of for the outstanding construction ventilation of tunnel device of local gas, it is characterized in that: the tee junction of the upper serial connection of described air chimney one (3A) (3c ') be the skew T joint, and its mouth of pipe is towards the face (1 ' B) in positive tunnel, the tee junction (3d) of the upper serial connection of described air chimney two (3B) is the skew T joint, and its mouth of pipe is towards the hole of secondary tunnel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243454 CN203239376U (en) | 2013-05-08 | 2013-05-08 | Tunnel construction ventilation device for partial outburst of gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320243454 CN203239376U (en) | 2013-05-08 | 2013-05-08 | Tunnel construction ventilation device for partial outburst of gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239376U true CN203239376U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320243454 Expired - Fee Related CN203239376U (en) | 2013-05-08 | 2013-05-08 | Tunnel construction ventilation device for partial outburst of gas |
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| CN (1) | CN203239376U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266907A (en) * | 2013-05-08 | 2013-08-28 | 西南交通大学 | Tunnel construction ventilation system for local gas outburst |
| CN111396127A (en) * | 2020-02-27 | 2020-07-10 | 中铁十九局集团第三工程有限公司 | Intelligent tunnel gas monitoring and processing device and control system thereof |
-
2013
- 2013-05-08 CN CN 201320243454 patent/CN203239376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266907A (en) * | 2013-05-08 | 2013-08-28 | 西南交通大学 | Tunnel construction ventilation system for local gas outburst |
| CN111396127A (en) * | 2020-02-27 | 2020-07-10 | 中铁十九局集团第三工程有限公司 | Intelligent tunnel gas monitoring and processing device and control system thereof |
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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: 20131016 Termination date: 20160508 |