CN203847155U - Refuge chamber nitrogen-supplementing device - Google Patents

Refuge chamber nitrogen-supplementing device Download PDF

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Publication number
CN203847155U
CN203847155U CN201420150006.2U CN201420150006U CN203847155U CN 203847155 U CN203847155 U CN 203847155U CN 201420150006 U CN201420150006 U CN 201420150006U CN 203847155 U CN203847155 U CN 203847155U
Authority
CN
China
Prior art keywords
air inlet
control valve
nitrogen
port
inlet port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420150006.2U
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Chinese (zh)
Inventor
李凯
李玉贵
张晓升
曾庆华
辛泳霖
田海明
张兆祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Changzhi Qinghua Machinery Factory
Original Assignee
China Academy of Launch Vehicle Technology CALT
Changzhi Qinghua Machinery Factory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Priority to CN201420150006.2U priority Critical patent/CN203847155U/en
Application granted granted Critical
Publication of CN203847155U publication Critical patent/CN203847155U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a nitrogen-supplementing device, in particular to a refuge chamber nitrogen-supplementing device. The refuge chamber nitrogen-supplementing device can supplement nitrogen for a chamber timely and can maintain air pressure in the chamber. The technical scheme is that the refuge chamber nitrogen-supplementing device comprises a box, the box is provided with a first air inlet and an air outlet, the first air inlet is communicated with one port of a first control valve, another port of the first control valve is communicated with one port of a three-way connector, another port of the three-way connector is connected with a nitrogen pressure meter, a last port of the three-way connector is connected with one end of a gas flow meter, the other end of the gas flow meter is communicated with the air outlet, the box is further provided with a second air inlet, the second air inlet is communicated with one port of a second control valve, and another port of the second control valve is connected with a differential pressure gauge. The refuge chamber nitrogen-supplementing device is suitable for the field of coal mines.

Description

Refuge chamber is mended nitrogen device
Technical field
The utility model relates to a kind of nitrogen device of mending, and is 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;
In the time that 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, along with the passage of oxygen infusion time, oxygen concentration in refuge chamber can increase, in the time that 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 ", the air pressure in refuge chamber should remain that, higher than ambient pressure 100 ~ 500Pa, therefore refuge chamber should possess the ability of the proper air pressure of maintaining.
Utility model content
The utility model 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 adopted in the utility model is: 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 gas outlet place 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 utility model compared with prior art has following beneficial effect
1, in the utility model, 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 filling in refuge chamber, the output quantity that also can regulate according to the flow value showing nitrogen; By said apparatus, can control quickly and easily nitrogen to the supply in refuge chamber, effectively reduce the oxygen concentration in chamber.
2, in the utility model, 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 utility model, mend nitrogen device and integrate nitrogen gas supply function and indoor and outdoor pressure differential detection function, hedging personnel are operated convenient, quick.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in more detail:
Fig. 1 is structural representation of the present utility model;
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.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3, Figure 4, refuge chamber is mended 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, and 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, sound absorber 8 can be set at gas outlet place, and 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, benefit nitrogen pipeline and pressure differential detection pipeline all can adopt stainless steel tube 11 to bend and form, so just make the apparatus structure in the utility model firmly compact, good looking appearance, is convenient to on-the-spot installation and hedging personnel operation; Particularly, mend nitrogen pipeline and can adopt the stainless steel cleaning of Φ 10 × 1 to manage, 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 utility model 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 embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.

Claims (5)

1. 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. refuge chamber according to claim 1 is mended nitrogen device, it is characterized in that: the gas outlet place of described casing (1) is provided with sound absorber (8).
3. 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. mend nitrogen device according to arbitrary described refuge chamber in claims 1 to 3, 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. mend nitrogen device according to arbitrary described refuge chamber in claims 1 to 3, 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).
CN201420150006.2U 2014-03-31 2014-03-31 Refuge chamber nitrogen-supplementing device Expired - Fee Related CN203847155U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420150006.2U CN203847155U (en) 2014-03-31 2014-03-31 Refuge chamber nitrogen-supplementing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420150006.2U CN203847155U (en) 2014-03-31 2014-03-31 Refuge chamber nitrogen-supplementing device

Publications (1)

Publication Number Publication Date
CN203847155U true CN203847155U (en) 2014-09-24

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Application Number Title Priority Date Filing Date
CN201420150006.2U Expired - Fee Related CN203847155U (en) 2014-03-31 2014-03-31 Refuge chamber nitrogen-supplementing device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925002A (en) * 2014-03-31 2014-07-16 长治清华机械厂 Refuge chamber nitrogen replenishing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925002A (en) * 2014-03-31 2014-07-16 长治清华机械厂 Refuge chamber nitrogen replenishing device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140924

Termination date: 20170331

CF01 Termination of patent right due to non-payment of annual fee