CN102168577A - Confined space positive pressure control equipment and regulating method thereof - Google Patents
Confined space positive pressure control equipment and regulating method thereof Download PDFInfo
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- CN102168577A CN102168577A CN2011100897013A CN201110089701A CN102168577A CN 102168577 A CN102168577 A CN 102168577A CN 2011100897013 A CN2011100897013 A CN 2011100897013A CN 201110089701 A CN201110089701 A CN 201110089701A CN 102168577 A CN102168577 A CN 102168577A
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- malleation
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims abstract description 162
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 52
- 238000001802 infusion Methods 0.000 claims description 14
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002775 capsule Substances 0.000 abstract description 11
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 14
- 230000004083 survival effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to confined space positive pressure control equipment and a regulating method thereof, which belong to the field of rescue capsules. The confined space positive pressure control equipment mainly comprises a pressure relief pipe, a first stop valve, a fluid replenishing valve, a fluid injection port, a second stop valve, an exhaust pipe, a power supply positive electrode, a power supply negative electrode, an air replenishing pipe, a third stop valve, an electromagnetic valve and an air replenishing port in a capsule. The confined space positive pressure control equipment is characterized by also comprising a positive pressure fluid reservoir, a negative pressure fluid reservoir, colored conductive fluid, a fluid replenishing case, an electrode A, an electrode B and an electrode C, wherein the positive pressure fluid reservoir and the negative pressure fluid reservoir are connected with air inside and outside the capsule through the second stop valve and the first stop valve respectively and are used for monitoring the change of pressure inside and outside the capsule all the time; the colored conductive fluid is used for the conduction of the electromagnetic valve and reading calibrated scales in the positive pressure fluid reservoir and the negative pressure fluid reservoir; the fluid replenishing case is positioned at the top of positive pressure control equipment, is connected with the positive pressure fluid reservoir, and is used for regulating the values of positive pressure in the capsule; and the electrode A, the electrode B and the electrode C are arranged in the positive pressure fluid reservoir and the negative pressure fluid reservoir and are used for automatically controlling the electromagnetic valve to start and stop. The confined space positive pressure control equipment has the advantages of high sensitivity, flexibility in regulation, low power consumption, high reliability, long service life and the like.
Description
Technical field
The present invention relates to a kind of confined space malleation control appliance and control method, belong to the survival capsule field.
Background technology
Colliery refuge chamber or mining survival capsule as reliable urgent danger prevention system in the colliery, its objective is that the miner that can't in time withdraw after having an accident for mine provides the confined space of a safety.Blast impulse, high-temperature flue gas externally can be resisted in this space, and isolated toxic and harmful internally can win long life span, thereby help external rescue greatly for stranded miner provides oxygen, food and water.At present, every technology such as the resistance to compression of refuge chamber and survival capsule, explosion-proof, thermal insulation reach its maturity, and to keep technology backward relatively but invade in the cabin of major measure pressure-fired as isolated outside pernicious gas.
For isolated a spot of micronic dust, salt fog or germ, pressure-fired is kept technology and obtained extensive use in clean and air-conditioning technical, but because its source of the gas is an external ambient atmosphere, all lower to the requirement of seal and degree of regulation; And, and do not consider the processing that toxic and harmful is invaded not to be suitable for small space systems such as survival capsule because of use field difference.The small space system is for keeping pressure-fired in the cabin, guaranteeing that outside toxic and harmful does not expand in the cabin, pressure-fired is kept pressure controlled response time of system and degree of regulation proposes very high requirement, therefore design the pressure-fired that is applicable to mining survival capsule and keep autocontrol method and become one of key of survival capsule reliability design.
Summary of the invention
The invention provides a kind of can automatic Regulation, highly sensitive, regulate fast, power consumption is little, reliability is high, the confined space malleation control appliance of long service life.
A kind of confined space pressure-fired control appliance is characterized in that: comprise malleation fluid reservoir, negative pressure fluid reservoir, wherein malleation fluid reservoir and negative pressure fluid reservoir bottom is communicated with, and integral body is the U-shaped tubular type, and wherein malleation fluid reservoir cross section is greater than negative pressure fluid reservoir cross section; Above-mentioned malleation fluid reservoir upper end is connected with atmosphere out of my cabin through first stop valve, and negative pressure fluid reservoir upper end is connected with cabin atmosphere through second stop valve, wherein also passes through make-up valve on the malleation fluid reservoir and links to each other with the fluid infusion case, and the fluid infusion case is provided with liquid injection port; Above-mentioned malleation fluid reservoir is provided with electrode A, and the negative pressure fluid reservoir is provided with electrode B and electrode C, and wherein the position of electrode C is higher than the position of electrode A, and the position of electrode B is lower than the position of electrode A; This confined space pressure-fired control appliance also comprises the blowdown pipe that links to each other with high pressure storage tank, is provided with gas supplementing opening in the 3rd stop valve, electromagnetic valve, the cabin on the blowdown pipe successively; The also external intrinsic safe explosion-proof power supply of this confined space pressure-fired control appliance, wherein positive source links to each other with electrode B, and power cathode links to each other with an end of electromagnetic valve, and the other end of electromagnetic valve links to each other with electrode A, electrode C simultaneously; In the above-mentioned fluid infusion case conduction liquid is arranged, original state also has conduction liquid in malleation fluid reservoir and the negative pressure fluid reservoir, and the capacity of conduction liquid satisfies can flood electrode A and electrode B when malleation fluid reservoir and negative pressure fluid reservoir liquid level equilibrium.
Utilize the pressure-fired control method of above-mentioned confined space pressure-fired control appliance, it is characterized in that comprising following process: A, in trapped personnel enters the cabin time, at first open first stop valve and second stop valve, cabin external and internal pressure value equates that malleation fluid reservoir and negative pressure fluid reservoir conduction liquid are in the equilbrium position; B, then, trapped personnel is switched on to equipment, opens the 3rd stop valve simultaneously; Because electrode A and electrode B are connected, electromagnetic valve is opened, and high pressure draught is entered in the cabin by gas supplementing opening in the cabin by blowdown pipe from high pressure storage tank, gives ftercompction in the cabin; Along with the carrying out of ftercompction process, the cabin internal pressure
Progressively raise and surpass external atmosphere pressure
Conduction liquid under the effect of inside and outside differential pressure in the negative pressure fluid reservoir flows to the malleation fluid reservoir, because the ftercompction in the cabin of giving that this stage high pressure storage tank is not still stopping, so the malleation fluid reservoir that flows to that the conduction liquid in the negative pressure fluid reservoir can not stop breaks away from until conduction liquid and electrode B, closed electromagnetic valve stops ftercompction in the cabin; The malleation value
, the cabin internal pressure
And external atmosphere pressure
Satisfy following formula:
Wherein, be acceleration of gravity for conduction liquid density,
Be the height that rises on the malleation fluid reservoir fluid column relative equilibrium position,
Height for the decline of negative pressure fluid reservoir relative equilibrium position.Find out the malleation value by formula
Size depends on, and the fluid column height when depending on malleation fluid reservoir and negative pressure fluid reservoir initial rest position, the liquid-column height during initial rest position is set by the fluid infusion case; If tonifying Qi is too much in the cabin, unnecessary gas will overcome pressure that fluid column gravity forms successively by second stop valve, negative pressure fluid reservoir, malleation fluid reservoir, first stop valve with bubble form to discharging out of my cabin; C, when pressure out of my cabin changes greater than the cabin internal pressure because of environmental factor, outside gas enters the malleation fluid reservoir, liquid flows to the negative pressure fluid reservoir from the malleation fluid reservoir, because the sectional area of negative pressure fluid reservoir is less than the malleation fluid reservoir, a small amount of decline of malleation fluid reservoir liquid level will cause the fast rise of negative pressure fluid reservoir liquid-column height, thereby form reliable fluid-tight effect, guarantee the tightness of cabin body, fluid column in the negative pressure fluid reservoir rises to when flooding electrode B, electrode B and electrode C connect, electromagnetic valve is opened, and high pressure draught is given tonifying Qi in the cabin from high pressure storage tank by blowdown pipe gas supplementing opening in the cabin, thereby stops the fluid column in the negative pressure fluid reservoir to continue to rise.
Above-mentioned malleation fluid reservoir can have the malleation rule, can be tilting for making things convenient for reading malleation rule; Above-mentioned negative pressure fluid reservoir can have the negative pressure rule, can be tilting for making things convenient for reading negative pressure rule; Can be coloured conduction liquid for ease of the conduction liquid of observing in above-mentioned malleation fluid reservoir, negative pressure fluid reservoir and the fluid infusion case.
The confined space malleation control appliance that the present invention relates to can be realized the automatic Regulation function, liquid level change has reflected the cabin inside and outside differential pressure in real time, control electromagnetic valve start and stop simultaneously, adjustment process does not relate to machine driving, therefore have highly sensitive, regulate flexibly, outstanding advantages such as power consumption is little, reliability is high, long service life.
Description of drawings
Fig. 1 is confined space pressure-fired control principle Fig. 1;
Fig. 2 is confined space pressure-fired control principle Fig. 2;
Fig. 3 is confined space pressure-fired control principle Fig. 3;
Fig. 4 is positive negative pressure fluid reservoir partial enlarged drawing;
Label title among the figure: 1. relief tube, 2. first stop valve, 3. malleation rule, 4. malleation fluid reservoir, 5. make-up valve, 6. coloured conduction liquid, 7. liquid injection port, 8. fluid infusion case, 9. negative pressure rule, 10. negative pressure fluid reservoir, 11. second stop valves, 12. stacks, 13. positive source, 14. power cathodes, 15. blowdown pipes, 16. the 3rd stop valve, 17. electrode A, 18. electrode B, 19. electrode C, 20. electromagnetic valves, gas supplementing opening in 21. cabins.
The specific embodiment
As shown in Figure 1, a kind of novel confined space pressure-fired control appliance of the present invention comprises relief tube 1, the first stop valve 2, malleation rule 3, malleation fluid reservoir 4, make-up valve 5, coloured conduction liquid 6, liquid injection port 7, fluid infusion case 8, negative pressure rule 9, negative pressure fluid reservoir 10, second stop valve 11, stack 12, positive source 13, power cathode 14, blowdown pipe 15, the three stop valves 16, electrode A 17, electrode B 18, electrode C19, electromagnetic valve 20, gas supplementing opening 21 in the cabin; Described malleation fluid reservoir 4 and negative pressure fluid reservoir 10 bottoms are communicated with, and integral body is the U-shaped tubular type, and wherein malleation fluid reservoir cross section is greater than negative pressure fluid reservoir cross section.
In the time of in trapped personnel enters the cabin, at first open first stop valve 2 and second stop valve 11, cabin external and internal pressure value equates that coloured conduction liquid 6 is in state as shown in Figure 1 in the control appliance, and malleation fluid reservoir 4 and negative pressure fluid reservoir 10 conduction liquid are in the equilbrium position; Then, trapped personnel is switched on to equipment, opens the 3rd stop valve 16 simultaneously; Because electrode A 17 and electrode B 18 are connected, electromagnetic valve 20 is opened, and high pressure draught is entered in the cabin by gas supplementing opening in the cabin 21 by blowdown pipe 15 from high pressure storage tank, gives ftercompction in the cabin; Along with the carrying out of ftercompction process, the cabin internal pressure
Progressively raise and surpass external atmosphere pressure
Conduction liquid under the effect of inside and outside differential pressure in the negative pressure fluid reservoir 10 flows to the malleation fluid reservoir, because the ftercompction in the cabin of giving that this stage high pressure storage tank is not still stopping, the conduction liquid in the negative pressure fluid reservoir 10 flow to malleation fluid reservoir 4 so can not stop, break away from until coloured conduction liquid 6 and electrode B 18, electromagnetic valve 20 cuts out, and stops ftercompction in the cabin; The malleation value
, the cabin internal pressure
And external atmosphere pressure
Satisfy following formula:
Wherein be coloured conduction liquid 6 density, be acceleration of gravity,
Be the height that rises on the malleation fluid reservoir 4 fluid column relative equilibrium positions,
Height for the decline of negative pressure fluid reservoir 10 relative equilibrium positions.Find out the malleation value by formula
Size depends on, and the fluid column height when depending on malleation fluid reservoir 4 and negative pressure fluid reservoir 10 initial rest position, the liquid-column height during initial rest position is set by fluid infusion case 8;
If tonifying Qi is too much in the cabin, when the liquid that the negative pressure fluid reservoir is 10 li flows in the malleation fluid reservoir 4 fully, still can't keep pressure balance, gas can continue up press liquid so, at this moment, because the bore of malleation fluid reservoir 4 is big, liquid is not enough, unnecessary gas will overcome the pressure of fluid column gravity formation to discharging out of my cabin, to be realized in the cabin to outer pressure release with bubble form by second stop valve 11, negative pressure fluid reservoir 10, malleation fluid reservoir 4, first stop valve 2 successively.
When pressure out of my cabin changes greater than the cabin internal pressure because of environmental factor, outside gas enters malleation fluid reservoir 4, liquid flows to negative pressure fluid reservoir 10 from malleation fluid reservoir 4, because the sectional area of negative pressure fluid reservoir 10 is less than malleation fluid reservoir 4, a small amount of decline of malleation fluid reservoir 4 liquid levels will cause the fast rise of negative pressure fluid reservoir 10 liquid-column heights, thereby form reliable fluid-tight effect, guarantee the tightness of cabin body, if the fluid column in the negative pressure fluid reservoir 10 rises to when flooding electrode B 18, electrode B 18 and electrode C19 connect, electromagnetic valve 20 is opened, high pressure draught is given tonifying Qi in the cabin from high pressure storage tank by blowdown pipe 15 gas supplementing opening 21 in the cabin, thereby stops the fluid column in the negative pressure fluid reservoir 10 to continue to rise.
For the ease of reading, malleation rule 3 and negative pressure rule 9 adopt the inclination mode to arrange;
Described coloured conduction liquid 6 can be selected the liquid that density is less, conduct electricity very well, and this moment, liquid-column height under same pressure difference was higher, read accurate data easily.
Described electrode B 18 links to each other with external power supply positive terminal 13, and electrode A 17 links to each other with electromagnetic valve 20 right-hand members with electrode C19, and electromagnetic valve 20 left ends link to each other with power cathode 14.When coloured conduction liquid 6 was in as shown in figs. 1 and 3 the position, conduction liquid, electrode and electromagnetic valve constituted the closed-loop path, and this moment, electromagnetic valve 20 was opened; When coloured conduction liquid 6 is in as shown in Figure 2 the position, there is not conduction liquid in the negative pressure fluid reservoir 10, the loop disconnects, and electromagnetic valve 20 cuts out.
Claims (10)
1. confined space pressure-fired control appliance is characterized in that:
Comprise malleation fluid reservoir (4), negative pressure fluid reservoir (10), malleation fluid reservoir (4) and negative pressure fluid reservoir (10) bottom are communicated with, and integral body is the U-shaped tubular type, and wherein malleation fluid reservoir (4) cross section is greater than negative pressure fluid reservoir (10) cross section;
Above-mentioned malleation fluid reservoir (4) upper end is connected with atmosphere out of my cabin through first stop valve (2), negative pressure fluid reservoir (10) upper end is through gas communication in second stop valve (11) and the cabin, wherein also pass through make-up valve (5) on the malleation fluid reservoir (4) and link to each other with fluid infusion case (8), fluid infusion case (8) is provided with liquid injection port (7);
Above-mentioned malleation fluid reservoir (4) is provided with electrode A (17), negative pressure fluid reservoir (10) is provided with electrode B (18) and electrode C (19), wherein the position of electrode C (19) is higher than the position of electrode A (17), and the position of electrode B (18) is lower than the position of electrode A (17);
This confined space pressure-fired control appliance also comprises the blowdown pipe (15) that links to each other with high pressure storage tank, is provided with gas supplementing opening (21) in the 3rd stop valve (16), electromagnetic valve (20), the cabin on the blowdown pipe (15) successively;
This confined space pressure-fired control appliance also connects outside intrinsic safety flame proof power supply, wherein positive source (13) links to each other with electrode B (18), power cathode (14) links to each other with an end of electromagnetic valve (20), and the other end of electromagnetic valve (20) links to each other with electrode A (17), electrode C (19) simultaneously;
In the above-mentioned fluid infusion case (8) conduction liquid is arranged, malleation fluid reservoir (4) and the interior original state of negative pressure fluid reservoir (10) also have conduction liquid, and the capacity of conduction liquid satisfies can flood electrode A (17) and electrode B (18) when malleation fluid reservoir (4) and negative pressure fluid reservoir (10) liquid level equilibrium.
2. confined space pressure-fired control appliance according to claim 1 is characterized in that: above-mentioned malleation fluid reservoir (4) has malleation rule (3).
3. confined space pressure-fired control appliance according to claim 2 is characterized in that: above-mentioned malleation rule (3) is a tilting.
4. confined space pressure-fired control appliance according to claim 1 is characterized in that: above-mentioned negative pressure fluid reservoir (10) has negative pressure rule (9).
5. confined space pressure-fired control appliance according to claim 1 is characterized in that: above-mentioned negative pressure rule (9) is a tilting.
6. confined space pressure-fired control appliance according to claim 1 is characterized in that: the conduction liquid (6) in above-mentioned malleation fluid reservoir (4), negative pressure fluid reservoir (10) and the fluid infusion case (8) is coloured conduction liquid.
7. utilize the pressure-fired control method of the described confined space pressure-fired of claim 1 control appliance, it is characterized in that comprising following process:
A, in trapped personnel enters the cabin time, at first open first stop valve (2) and second stop valve (11), cabin external and internal pressure value equates, malleation fluid reservoir (4) and negative pressure fluid reservoir (10) conduct electricity liquid and be in the equilbrium position;
B, then, trapped personnel is switched on to equipment, opens the 3rd stop valve (16) simultaneously; Because electrode A (17) and electrode B (18) are connected, electromagnetic valve (20) is opened, and high pressure draught is entered in the cabin by gas supplementing opening in the cabin (21) by blowdown pipe (15) from high pressure storage tank, gives ftercompction in the cabin;
Along with the carrying out of ftercompction process, the cabin internal pressure
Progressively raise and surpass external atmosphere pressure
Conduction liquid under the effect of inside and outside differential pressure in the negative pressure fluid reservoir (10) flows to malleation fluid reservoir (4), because the ftercompction in the cabin of giving that this stage high pressure storage tank is not still stopping, the conduction liquid in the negative pressure fluid reservoir (10) flows to malleation fluid reservoir (4) so can not stop, break away from until conduction liquid (6) and electrode B (18), electromagnetic valve (20) cuts out, and stops ftercompction in the cabin;
The malleation value
, the cabin internal pressure
And external atmosphere pressure
Satisfy following formula:
Wherein, be acceleration of gravity for conduction liquid density,
Be the height that rises on the malleation fluid reservoir fluid column relative equilibrium position,
For the height that negative pressure fluid reservoir relative equilibrium position descends, find out the malleation value by formula
Size depends on, and the fluid column height when depending on malleation fluid reservoir and negative pressure fluid reservoir initial rest position, the liquid-column height during initial rest position is set by the fluid infusion case;
If tonifying Qi is too much in the cabin, unnecessary gas will overcome pressure that fluid column gravity forms successively by second stop valve (11), negative pressure fluid reservoir (10), malleation fluid reservoir (4), first stop valve (2) with bubble form to discharging out of my cabin;
C, when pressure out of my cabin changes greater than the cabin internal pressure because of environmental factor, outside gas enters malleation fluid reservoir (4), liquid flows to negative pressure fluid reservoir (10) from malleation fluid reservoir (4), because the sectional area of negative pressure fluid reservoir (10) is less than malleation fluid reservoir (4), a small amount of decline of malleation fluid reservoir (4) liquid level will cause the fast rise of negative pressure fluid reservoir (10) liquid-column height, thereby form reliable fluid-tight effect, guarantee the tightness of cabin body, if the fluid column in the negative pressure fluid reservoir rises to when flooding electrode B (18), electrode B (18) and electrode C(19) connect, electromagnetic valve is opened, high pressure draught is given tonifying Qi in the cabin from high pressure storage tank by blowdown pipe (15) gas supplementing opening (21) in the cabin, thereby stops the fluid column in the negative pressure fluid reservoir (10) to continue to rise.
8. according to the pressure-fired control method of the described confined space pressure-fired of claim 7 control appliance, it is characterized in that: above-mentioned malleation fluid reservoir (4) has malleation rule (3); And above-mentioned malleation rule (3) is a tilting.
9. according to the pressure-fired control method of the described confined space pressure-fired of claim 7 control appliance, it is characterized in that: above-mentioned negative pressure fluid reservoir (10) has negative pressure rule (9); And above-mentioned negative pressure rule (9) is a tilting.
10. the pressure-fired control method of confined space pressure-fired control appliance according to claim 7 is characterized in that: the conduction liquid (6) in above-mentioned malleation fluid reservoir (4), negative pressure fluid reservoir (10) and the fluid infusion case (8) is coloured conduction liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089701 CN102168577B (en) | 2011-04-11 | 2011-04-11 | Confined space positive pressure control equipment and regulating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110089701 CN102168577B (en) | 2011-04-11 | 2011-04-11 | Confined space positive pressure control equipment and regulating method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102168577A true CN102168577A (en) | 2011-08-31 |
| CN102168577B CN102168577B (en) | 2012-12-26 |
Family
ID=44489876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110089701 Expired - Fee Related CN102168577B (en) | 2011-04-11 | 2011-04-11 | Confined space positive pressure control equipment and regulating method thereof |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644478A (en) * | 2012-03-31 | 2012-08-22 | 长治清华机械厂 | Positive pressure keeping system of escape capsule |
| CN106784933A (en) * | 2016-11-28 | 2017-05-31 | 德阳九鼎智远知识产权运营有限公司 | A kind of compensation device of hydrogen fuel cell |
| CN109760944A (en) * | 2019-03-18 | 2019-05-17 | 浙江嘉化能源化工股份有限公司 | A kind of adjacent nitro produces the fluid-tight method of corollary apparatus to thiamphenicol benzoic acid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070200420A1 (en) * | 2006-02-28 | 2007-08-30 | Custom Engineering, Inc. | Underground mine rescue pod |
| US20070199244A1 (en) * | 2006-02-27 | 2007-08-30 | Kennedy William R | Mine Refuge |
| CN101545380A (en) * | 2008-03-28 | 2009-09-30 | 三一重型装备有限公司 | Mine refuge cabin |
| CN201400185Y (en) * | 2009-04-03 | 2010-02-10 | 南车青岛四方机车车辆股份有限公司 | High-speed sleeper train air-conditioning duct system |
| CN201574778U (en) * | 2009-12-23 | 2010-09-08 | 唐志明 | Disaster-resistance life-saving capsule for mining |
-
2011
- 2011-04-11 CN CN 201110089701 patent/CN102168577B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070199244A1 (en) * | 2006-02-27 | 2007-08-30 | Kennedy William R | Mine Refuge |
| US20070200420A1 (en) * | 2006-02-28 | 2007-08-30 | Custom Engineering, Inc. | Underground mine rescue pod |
| CN101545380A (en) * | 2008-03-28 | 2009-09-30 | 三一重型装备有限公司 | Mine refuge cabin |
| CN201400185Y (en) * | 2009-04-03 | 2010-02-10 | 南车青岛四方机车车辆股份有限公司 | High-speed sleeper train air-conditioning duct system |
| CN201574778U (en) * | 2009-12-23 | 2010-09-08 | 唐志明 | Disaster-resistance life-saving capsule for mining |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644478A (en) * | 2012-03-31 | 2012-08-22 | 长治清华机械厂 | Positive pressure keeping system of escape capsule |
| CN102644478B (en) * | 2012-03-31 | 2014-04-09 | 长治清华机械厂 | Positive pressure keeping system of escape capsule |
| CN106784933A (en) * | 2016-11-28 | 2017-05-31 | 德阳九鼎智远知识产权运营有限公司 | A kind of compensation device of hydrogen fuel cell |
| CN106784933B (en) * | 2016-11-28 | 2019-05-21 | 德阳九鼎智远知识产权运营有限公司 | A kind of compensation device of hydrogen fuel cell |
| CN109760944A (en) * | 2019-03-18 | 2019-05-17 | 浙江嘉化能源化工股份有限公司 | A kind of adjacent nitro produces the fluid-tight method of corollary apparatus to thiamphenicol benzoic acid |
| CN109760944B (en) * | 2019-03-18 | 2024-03-29 | 浙江嘉福新材料科技有限公司 | Liquid sealing method of o-nitro-p-methylsulfonyl benzoic acid production matched device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102168577B (en) | 2012-12-26 |
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