CN103925002A - Refuge chamber nitrogen replenishing device - Google Patents
Refuge chamber nitrogen replenishing device Download PDFInfo
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- CN103925002A CN103925002A CN201410124666.8A CN201410124666A CN103925002A CN 103925002 A CN103925002 A CN 103925002A CN 201410124666 A CN201410124666 A CN 201410124666A CN 103925002 A CN103925002 A CN 103925002A
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- air inlet
- control valve
- port
- inlet port
- refuge chamber
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Abstract
The invention relates to a nitrogen replenishing device, in particular to a refuge chamber nitrogen replenishing device which can timely replenish nitrogen for a chamber and can maintain air pressure in the chamber. The technical scheme includes that the refuge chamber nitrogen replenishing device comprises a box, a first air inlet and an air outlet are formed on the box, the first air inlet is communicated with one port of a first control valve, the other port of the first control valve is communicated with one port of a three-way joint, the other port of the three-way joint is connected with a nitrogen pressure meter, the last port of the three-way joint is connected with one end of a gas flowmeter, the other end of the gas flowmeter is communicated with the air outlet, a second air inlet is formed on the box and communicated with a port of a second control valve, and the other end of the second control valve is connected with a differential pressure gauge. The refuge chamber nitrogen replenishing device is suitable for the field of coal mines.
Description
Technical field
The present invention relates to a kind of benefit nitrogen device, be specifically related to a kind of benefit nitrogen device of refuge chamber.
Background technology
Refuge chamber is as the important component part of underground emergency avoiding system, can resist the impact of gas explosion, isolated virulent gas, especially when down-hole occurs after mine disaster, refuge chamber can be the personnel that cannot withdraw in time safe, airtight living space is provided, and for hedging personnel provide the existence such as oxygen, food and water must thing, thereby strive for valuable rescue time for people;
When the pressure wind feed system of refuge chamber can not normally be worked, need to open compressed oxygen feed system to delivering oxygen in refuge chamber, passage along with the oxygen infusion time, oxygen concentration in refuge chamber can increase, when oxygen concentration is too high, hedging personnel there will be oxygen poisoning phenomenon, therefore need in time in refuge chamber, to supplement nitrogen (air) with the oxygen concentration in balance chamber; In addition, according to the relevant regulations in < < emergent danger avoiding system under shaft of coal mine implementation management temporary provisions > >, air pressure in refuge chamber should remain higher than ambient pressure 100 ~ 500Pa, so refuge chamber should possess the ability of the proper air pressure of maintaining.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is: a kind of refuge chamber benefit nitrogen device that can supplement nitrogen for chamber is interior in good time and can maintain chamber internal gas pressure is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of refuge chamber is mended nitrogen device, comprise casing, on described casing, have the first air inlet port and gas outlet, the first air inlet port is communicated with a port of the first control valve, the another port of the first control valve is communicated with an interface of tee junction, another interface of tee junction is connected with nitrogen pressure table, last interface of tee junction is connected with one end of gas flowmeter, and the other end of gas flowmeter is communicated with described gas outlet; On described casing, also have the second air inlet port, the second air inlet port is communicated with a port of the second control valve, and the another port of the second control valve is connected with differential pressure indicator.
The place, gas outlet of described casing is provided with sound absorber; The first air inlet port place and the second air inlet port place of described casing are respectively equipped with the first BULKHEAD UNION and the second BULKHEAD UNION; Described the first control valve and the second control valve are cutting ferrule angle type needle-valve; Described the first air inlet port and the second air inlet port are all arranged at the bottom of described casing, and described gas outlet is arranged at the top of described casing.
The present invention compared with prior art has following beneficial effect
1, in the present invention, air enters the benefit nitrogen pipeline in casing from the first air inlet port, and by opening the first control valve, air flows to nitrogen pressure table on the one hand, enters in refuge chamber on the one hand through gas flowmeter from gas outlet; Nitrogen pressure table is for showing the force value that enters the nitrogen of mending nitrogen pipeline, and gas flowmeter is for showing the nitrogen flow that fills in refuge chamber, and can regulating according to the flow value showing the output quantity of nitrogen; By said apparatus, can control quickly and easily nitrogen to the supply in refuge chamber, effectively reduced the oxygen concentration in chamber.
2, in the present invention, air enters the pressure differential detection pipeline in casing from the second air inlet port, by opening the second control valve, air flow differential pressure indicator, differential pressure indicator is for detection of the pressure reduction inside and outside chamber, by observing the show value of differential pressure indicator, if the inside and outside pressure reduction of chamber is less than 100 Pa, open the first control valve to air supply in refuge chamber, to maintain pressure reduction inside and outside chamber higher than 100 Pa, for hedging personnel provide comfortable living environment.
3, in the present invention, mend nitrogen device and integrate nitrogen gas supply function and indoor and outdoor pressure differential detection function, hedging personnel are operated convenient, quick.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A view of Fig. 1;
Fig. 4 is the B-B view of Fig. 1;
In figure: 1 is casing, 2 is the first control valve, and 3 is tee junction, and 4 is nitrogen pressure table, and 5 is gas flowmeter, and 6 is the second control valve, and 7 is differential pressure indicator, and 8 is sound absorber, and 9 is the first BULKHEAD UNION, and 10 is the second BULKHEAD UNION, and 11 is stainless steel tube.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, refuge chamber is mended a nitrogen device, comprises casing 1, on described casing 1, has the first air inlet port and gas outlet, can the first BULKHEAD UNION 9 be set at the first air inlet port place, air enters the benefit nitrogen pipeline in casing 1 from the first air inlet port; The first air inlet port is communicated with a port of the first control valve 2, the another port of the first control valve 2 is communicated with an interface of tee junction 3, by opening or close the first control valve 2, whether can control to air supply in chamber, the first control valve 2 can be cutting ferrule angle type needle-valve; Another interface of tee junction 3 is connected with nitrogen pressure table 4, last interface of tee junction 3 is connected with one end of gas flowmeter 5, the other end of gas flowmeter 5 is communicated with described gas outlet, can sound absorber 8 be set at place, gas outlet, air just enters in refuge chamber eliminate noise by sound absorber 8 after gas flowmeter 5 after.
On described casing 1, also have the second air inlet port, the second air inlet port place can arrange the second BULKHEAD UNION 10, air enters the pressure differential detection pipeline in casing 1 from the second air inlet port, the second air inlet port is communicated with a port of the second control valve 6, the another port of the second control valve 6 is connected with differential pressure indicator 7, and the second control valve 6 can be cutting ferrule angle type needle-valve; Described the first air inlet port and the second air inlet port all can be arranged at the bottom of described casing 1, and described gas outlet can be arranged at the top of described casing 1; For the ease of observing operation, described nitrogen pressure table 4, gas flowmeter 5 and differential pressure indicator 7 all can be arranged on the external surface of casing 1.
In technical scheme in the present embodiment, the equal integrated installation of all component is in casing 1, and benefit nitrogen pipeline and pressure differential detection pipeline all can adopt stainless steel tube 11 to bend and form, and so just makes the apparatus structure in the present invention firmly compact, good looking appearance, is convenient to on-the-spot installation and hedging personnel operation; Particularly, mend the clean pipe of stainless steel that nitrogen pipeline can adopt Φ 10 * 1, both reduced the difficulty that bends of pipeline, can guarantee again the supply flow rate of air, reduce the loss of gas pressure; Because pressure differential detection pipeline is mainly used in outdoor air to introduce differential pressure indicator 7, therefore in order to reduce the difficulty that bends of pipeline as far as possible, pressure differential detection pipeline can adopt the clean pipe of the stainless steel of Φ 6 * 1.
In addition, the stainless steel tube 11 in casing 1 adopts horizontal or vertical layout as far as possible, has not allowed juxtaposition, in order to ensure neat appearance, good seal performance, also can on stainless steel tube 11, twine appropriate polytetrafluoroethylraw raw material band; All junctions of installing in the present invention all should adopt reliable seal approach, guarantee that it has higher tightness and resistance to pressure, should do clean processing, and shutoff expose joint after assembling.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (5)
1. a refuge chamber is mended nitrogen device, comprise casing (1), it is characterized in that: described casing has the first air inlet port and gas outlet on (1), the first air inlet port is communicated with a port of the first control valve (2), the another port of the first control valve (2) is communicated with an interface of tee junction (3), another interface of tee junction (3) is connected with nitrogen pressure table (4), last interface of tee junction (3) is connected with one end of gas flowmeter (5), and the other end of gas flowmeter (5) is communicated with described gas outlet;
Described casing also has the second air inlet port on (1), and the second air inlet port is communicated with a port of the second control valve (6), and the another port of the second control valve (6) is connected with differential pressure indicator (7).
2. a kind of refuge chamber according to claim 1 is mended nitrogen device, it is characterized in that: the place, gas outlet of described casing (1) is provided with sound absorber (8).
3. a kind of refuge chamber according to claim 1 is mended nitrogen device, it is characterized in that: the first air inlet port place of described casing (1) and the second air inlet port place are respectively equipped with the first BULKHEAD UNION (9) and the second BULKHEAD UNION (10).
4. according to arbitrary described a kind of refuge chamber in claims 1 to 3, mend nitrogen device, it is characterized in that: described the first control valve (2) and the second control valve (6) are cutting ferrule angle type needle-valve.
5. according to arbitrary described a kind of refuge chamber in claims 1 to 3, mend nitrogen device, it is characterized in that: described the first air inlet port and the second air inlet port are all arranged at the bottom of described casing (1), and described gas outlet is arranged at the top of described casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124666.8A CN103925002A (en) | 2014-03-31 | 2014-03-31 | Refuge chamber nitrogen replenishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410124666.8A CN103925002A (en) | 2014-03-31 | 2014-03-31 | Refuge chamber nitrogen replenishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925002A true CN103925002A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410124666.8A Pending CN103925002A (en) | 2014-03-31 | 2014-03-31 | Refuge chamber nitrogen replenishing device |
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| CN (1) | CN103925002A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1446343A1 (en) * | 1986-01-02 | 1988-12-23 | Всесоюзный научно-исследовательский институт горноспасательного дела | Gas-safety arrangement for mine workers in mine workings |
| CN102635397A (en) * | 2012-03-30 | 2012-08-15 | 长治清华机械厂 | Air supply device of mining rescue capsule |
| CN103195475A (en) * | 2013-04-24 | 2013-07-10 | 长治清华机械厂 | Oxygen supplier for refuge chambers |
| CN203296808U (en) * | 2013-06-14 | 2013-11-20 | 长治清华机械厂 | Oxygen supplying, nitrogen compensating and differential pressure integrated unit |
| CN203296807U (en) * | 2013-06-14 | 2013-11-20 | 长治清华机械厂 | Oxygen supplying unit |
| US8678515B2 (en) * | 2006-02-27 | 2014-03-25 | Kennedy Metal Products & Buildings, Inc. | Mine refuge |
| CN203847155U (en) * | 2014-03-31 | 2014-09-24 | 长治清华机械厂 | Refuge chamber nitrogen-supplementing device |
-
2014
- 2014-03-31 CN CN201410124666.8A patent/CN103925002A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1446343A1 (en) * | 1986-01-02 | 1988-12-23 | Всесоюзный научно-исследовательский институт горноспасательного дела | Gas-safety arrangement for mine workers in mine workings |
| US8678515B2 (en) * | 2006-02-27 | 2014-03-25 | Kennedy Metal Products & Buildings, Inc. | Mine refuge |
| CN102635397A (en) * | 2012-03-30 | 2012-08-15 | 长治清华机械厂 | Air supply device of mining rescue capsule |
| CN103195475A (en) * | 2013-04-24 | 2013-07-10 | 长治清华机械厂 | Oxygen supplier for refuge chambers |
| CN203296808U (en) * | 2013-06-14 | 2013-11-20 | 长治清华机械厂 | Oxygen supplying, nitrogen compensating and differential pressure integrated unit |
| CN203296807U (en) * | 2013-06-14 | 2013-11-20 | 长治清华机械厂 | Oxygen supplying unit |
| CN203847155U (en) * | 2014-03-31 | 2014-09-24 | 长治清华机械厂 | Refuge chamber nitrogen-supplementing device |
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Application publication date: 20140716 |