CN102889095A - Refrigerating device and method of mining escape capsule - Google Patents
Refrigerating device and method of mining escape capsule Download PDFInfo
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- CN102889095A CN102889095A CN2012103936616A CN201210393661A CN102889095A CN 102889095 A CN102889095 A CN 102889095A CN 2012103936616 A CN2012103936616 A CN 2012103936616A CN 201210393661 A CN201210393661 A CN 201210393661A CN 102889095 A CN102889095 A CN 102889095A
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- capillary evaporator
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- 239000002775 capsule Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005065 mining Methods 0.000 title abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 37
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 36
- 238000005057 refrigeration Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009183 running Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000004083 survival effect Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a refrigerating device and a method of a mining escape capsule, belonging to the field of safe rescue and environment control in a sealing space. The refrigerating device comprises a carbon dioxide steel bottle, a pipeline, a primary decompression throttling valve, a primary bypass valve, a primary thermometer, a primary capillary tube evaporator, a secondary decompression throttling valve, a secondary bypass valve, a secondary thermometer, a secondary capillary tube evaporator, an exhaust adjusting valve and a pneumatic air blower. According to the refrigerating method provided by the invention, conversion elements are connected and arranged on the primary capillary tube evaporator and the secondary capillary tube evaporator in series and in parallel, so that the use ratio of the refrigeration capacity of refrigerating fluid can be effectively increased, and the loss of the refrigeration capacity can be reduced; and furthermore, the primary thermometer and the secondary thermometer are arranged, so that the controllability of the device operation can be improved. The refrigerating device and the method provided by the invention have the advantages of safe and reliable properties, flexible and convenient adjustment, energy conversation, environmental protection, and high economical benefits and the like.
Description
Technical field
The present invention relates to a kind of mine escape capsule refrigerating plant and method, belong to confined space safe life-saving and environment control field.
Background technology
Severe situation for domestic mine safety production Frequent Accidents, relevant supervision department requires underground mine must improve the production safety facility before in June, 2013, finish the installation of six bigger devices such as urgent danger prevention, dangerous to tackle all kinds of bursts, minimizing accident and casualties.Mine escape capsule is equipped as a kind of novel urgent danger prevention, can be the down-hole distress personnel that can not in time withdraw provides the shelter of a safety, to changing the mine disaster emergency management and rescue pattern that merely relies on external rescue, combined with initiatively saving oneself to external rescue by passive fallback, make the rescue work science, effectively played vital effect.
The situation is tense for domestic mine safety, and the development survival capsule is very urgent.Space-closed in the cabin, if the untimely elimination of the damp and hot load of body metabolism, with threat to life, so the cool-down dehumidification ability of survival capsule is one of its Key Performance Indicator, the operability of its cool-down dehumidification technology and reliability will directly have influence on the overall performance of product, determine the function that can it realize emergency survival.The refrigeration modes that is applicable at present survival capsule mainly contains ice-reserving refrigeration, electric power storage refrigeration, high-pressure air source refrigeration.Higher and the long-term working service cost of ice maker fault rate of ice-reserving refrigeration is high.For the electric power storage refrigeration, its refrigeration performance is affected by the external environment larger, and there is potential safety hazard in the high-power explosion-proof battery and can not get mining license.High-pressure air source open refrigeration technology take carbon dioxide as cold-producing medium is because its refrigeration performance is stablized controlled, cheap and the environmental protection of cold-producing medium, cost of equipment maintenance is low, and can realize refrigeration, dehumidifying in without any powered attendant-controlled wheelchairs situation, purify integrated, advantages has become the first-selection of mine escape capsule refrigeration modes.
But high-pressure carbon dioxide open refrigeration device equally also faces more technical problem.The device operating pressure is high; Required liquid gas volume is larger, and storage takes up room larger with steel cylinder; Contain moisture in the carbon dioxide, easily cause pipeline ice stifled; Along with reducing of flow of liquid carbon dioxide amount, the cold of its release is not enough to the heat requirement in the balance cabin, humiture in the cabin can rise gradually, so consider actual refrigerating efficiency, carbon dioxide in traditional refrigerating plant in the steel cylinder generally only has 70%～75% to be utilized, and this has caused the waste in the energy and space undoubtedly.Therefore, the effect that how to reach safety and stability, energy saving economy on the basis that guarantees good refrigeration is the key of device design.
Summary of the invention
In view of this, the present invention is directed to Special use environment and the requirement of mine escape capsule, safe and reliable, stable performance, flexible adjustment, easy to operate escape capsule of mine refrigerating plant and method are provided.
Mine escape capsule refrigerating plant of the present invention comprises carbon dioxide steel cylinder, pipeline, one-level bypass valve, one-level pressure reducing throttle valve, one-level capillary evaporator, second depressurized choke valve, secondary coupling cock, secondary capillary evaporator, exhaust regulating valve and pneumatic fan.Be provided with pressure meter in described one-level pressure reducing throttle valve and the second depressurized choke valve.
Its annexation is: all carbon dioxide steel cylinders all access pipeline, and pipeline is by one-level pressure reducing throttle valve access one-level capillary evaporator.The one-level capillary evaporator links to each other with the secondary capillary evaporator by the second depressurized choke valve.The secondary capillary evaporator links to each other with pneumatic fan.The one-level bypass valve is connected across between the outlet of the import of one-level pressure reducing throttle valve and second depressurized choke valve.The secondary bypass valve is connected across between the import of the import of second depressurized choke valve and pneumatic fan.The entrance point of exhaust regulating valve is communicated with the outlet of secondary capillary evaporator, and the port of export of exhaust regulating valve is outwards exhaust directly.
This device further comprises: one-level thermometer and secondary thermometer.Described one-level thermometer is arranged on the exit of one-level pressure reducing throttle valve.The secondary thermometer is arranged on the exit of second depressurized choke valve.The aperture that the force value that records by above-mentioned pressure meter and thermometer and temperature value are regulated each pressure reducing throttle valve can realize the pressure drop distribution of CO 2 medium and the matched well of cryogenic temperature, thereby take full advantage of the cold of carbon dioxide.
Mine escape capsule refrigerating method based on said system comprises one-level evaporation and two kinds of operating modes of dual evaporation:
At the refrigeration initial stage, adopt dual evaporation, open one-level pressure reducing throttle valve and second depressurized choke valve, close one-level bypass valve, secondary bypass valve and exhaust regulating valve.Described one-level capillary evaporator and the series operation of secondary capillary evaporator.
When the temperature value that records when the secondary thermometer reaches setting value, enter the one-level evaporating state: open one-level bypass valve, secondary bypass valve, exhaust regulating valve, close the second depressurized choke valve.Described one-level capillary evaporator and the parallel running of secondary capillary evaporator.
Beneficial effect:
(1) the present invention compares with existing carbon dioxide open refrigeration device, because a secondary evaporimeter can change parallel operation into by serial operation letting cool the later stage, namely can't satisfy the double effect evaporator cascade refrigeration in the carbon dioxide liquid mass dryness fraction, release in the obvious situation about reducing of cold power, by changing the switching of valve, make double effect evaporator in parallel, the flow that increases liquid carbon dioxide continues refrigeration, the carbon dioxide that so can allow to store in the steel cylinder discharges to greatest extent, Effective Raise the cryogenic energy utilization rate of carbon dioxide, and help to reduce quantity or the volume of steel cylinder, save limited cabin body space.
(2) two-stage expenditure and pressure valve outlet port place set temperature instrument in the present invention, can monitor more intuitively the variation of key position temperature, cooperate the aperture of regulating the throttling reducing valve to control the temperature and pressure of evaporimeter, make liquid carbon dioxide fully heat absorption in evaporimeter, and assist to avoid pipeline ice to block up and the evaporimeter frosting phenomenon.
Description of drawings
Fig. 1 is the structural representation of escape capsule of mine refrigerating plant of the present invention;
Fig. 2 is the fundamental diagram of pneumatic fan.
Among the figure, the 1-carbon dioxide steel cylinder; The 2-pipeline; 3-one-level bypass valve; 4-one-level pressure reducing throttle valve; 5-one-level thermometer; 6-one-level capillary evaporator; 7-second depressurized choke valve; 8-secondary bypass valve; 9-secondary thermometer; 10-secondary capillary evaporator; The 11-exhaust regulating valve; The 12-pneumatic fan.
The specific embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
The present embodiment provides a kind of mine escape capsule refrigerating plant for Special use environment and the requirement of mine escape capsule.
This device comprises two or more carbon dioxide steel cylinders 1, pipeline 2, one-level bypass valve 3, one-level pressure reducing throttle valve 4, one-level thermometer 5, one-level capillary evaporator 6, second depressurized choke valve 7, secondary coupling cock 8, secondary thermometer 9, secondary capillary evaporator 10, exhaust regulating valve 11 and pneumatic fan 12.
Its annexation is: all carbon dioxide steel cylinders 1 all access pipeline 2, and pipeline 2 is by one-level pressure reducing throttle valve 4 access one-level capillary evaporators 6.One-level capillary evaporator 6 links to each other with secondary capillary evaporator 10 by second depressurized choke valve 7.Secondary capillary evaporator 10 links to each other with pneumatic fan 12.One-level bypass valve 3 is connected across between the outlet of the import of one-level pressure reducing throttle valve 4 and second depressurized choke valve 7.Secondary bypass valve 8 is connected across between the import of the import of second depressurized choke valve 7 and pneumatic fan 12.The entrance point of exhaust regulating valve 11 is communicated with the outlet of secondary capillary evaporator 10, and the port of export of exhaust regulating valve 11 is outwards exhaust directly.The exit of one-level pressure reducing throttle valve 4 is provided with one-level thermometer 5; The exit of second depressurized choke valve 7 is provided with secondary thermometer 9.
The refrigeration principle of this escape capsule of mine refrigerating plant is:
After the down-hole has an accident, and the hedging personnel enter the cabin, at the refrigeration initial stage, because the carbon dioxide mass dryness fraction of refrigeration initial stage carbon dioxide steel cylinder 1 interior storage is higher, adopt dual evaporation.Open first one-level pressure reducing throttle valve 4 and second depressurized choke valve 7, close one-level bypass valve 3, secondary bypass valve 8 and exhaust regulating valve 11.The liquid carbon dioxide of high normal pressure and temperature flows into pipeline 2 by carbon dioxide steel cylinder 1, during becoming, the one-level of flowing through pressure reducing throttle valve 4 forces down the carbon dioxide liquid of temperature, enter one-level capillary evaporator 6, ebullition, gasification after the heat requirement that personnel and equipment produce in the absorption cabin, become the carbon dioxide of middle normal pressure and temperature, the second depressurized of then flowing through choke valve 7 becomes the gas of low-pressure low-temperature, enter secondary capillary evaporator 10 and continue to let cool the carbon dioxide that becomes low normal pressure and temperature, the carbon dioxide of this moment still has certain pressure, it is imported pneumatic fan 12, drive pneumatic fan 12 rotations, the operating principle of pneumatic fan 12 as shown in Figure 2, during pneumatic fan 12 rotation, air in survival capsule process under the effect of pneumatic fan 12 is positioned at the air purifying preparation of refrigerating plant import, realize the purification of air in the survival capsule, then peripheral through two capillary evaporator pipelines successively again, carry out exchange heat with two ducted carbon dioxides of capillary evaporator, realize the circulation temperature lowering of air in the survival capsule, and carbon dioxide will directly be discharged from outside the survival capsule, to be used for isolating gas.
If ensureing that later stage time hedging personnel also fail to be rescued, along with the carrying out of process of refrigerastion, pressure carbon dioxide and mass dryness fraction in the steel cylinder reduce gradually, can't the meeting tier 2 evaporation use the gas requirement, when the temperature value that records when secondary thermometer 9 reaches setting value, enter the one-level evaporating state.Open one-level bypass valve 3, secondary bypass valve 8, exhaust regulating valve 11, close second depressurized choke valve 7, this moment one-level capillary evaporator 6 and 10 parallel runnings of secondary capillary evaporator.The temperature that cooperates the demonstration of one-level thermometer 5 and secondary thermometer 9, the aperture of adjustment one-level pressure reducing throttle valve 4 and second depressurized choke valve 8, thus the pressure of carbon dioxide is to realize fast cooling in the adjustment pipeline 2.To be divided into two branch roads from the carbon dioxide that carbon dioxide steel cylinder 1 flows out this moment, a branch road flow through one-level bypass valve 3 and secondary capillary evaporator 10, another branch road flow through one-level pressure reducing throttle valve 4, one-level capillary evaporator 6 and secondary bypass valve 8.Double effect evaporator all can normally use, and helps fast cooling.After two branch roads conflux, a part of carbon dioxide will drive pneumatic fan 12, and another part carbon dioxide will directly be discharged out of my cabin by exhaust regulating valve 11.
In view of the difference of environments for use different in the cabin to the cryogenic temperature demand, the aperture that each pressure reducing throttle valve is regulated in the variation of the temperature and pressure at each position that can survey according to thermometer and pressure meter according to actual conditions, with the pressure drop distribution of realization CO 2 medium and the matched well of cryogenic temperature, take full advantage of the cold of carbon dioxide.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. mine escape capsule refrigerating plant, it is characterized in that, this device comprises carbon dioxide steel cylinder (1), pipeline (2), one-level bypass valve (3), one-level pressure reducing throttle valve (4), one-level capillary evaporator (6), second depressurized choke valve (7), secondary coupling cock (8), secondary capillary evaporator (10), exhaust regulating valve (11) and pneumatic fan (12);
Its annexation is: all carbon dioxide steel cylinders (1) all access pipeline (2), and pipeline (2) is by one-level pressure reducing throttle valve (4) access one-level capillary evaporator (6); One-level capillary evaporator (6) links to each other with secondary capillary evaporator (10) by second depressurized choke valve (7); Secondary capillary evaporator (10) links to each other with pneumatic fan (12); One-level bypass valve (3) is connected across between the outlet of the import of one-level pressure reducing throttle valve (4) and second depressurized choke valve (7); Secondary bypass valve (8) is connected across between the import of the import of second depressurized choke valve (7) and pneumatic fan (12); The entrance point of exhaust regulating valve (11) is communicated with the outlet of secondary capillary evaporator (10), and the port of export of exhaust regulating valve (11) is outwards exhaust directly.
2. a kind of mine escape capsule refrigerating plant as claimed in claim 1 is characterized in that, further comprises: one-level thermometer (5) and secondary thermometer (9); Described one-level thermometer (5) is arranged on the exit of one-level pressure reducing throttle valve (4); Secondary thermometer (9) is arranged on the exit of second depressurized choke valve (7).
3. a kind of mine escape capsule refrigeration system as claimed in claim 1 is characterized in that, is provided with pressure meter in described one-level pressure reducing throttle valve (4) and the second depressurized choke valve (7).
4. a mine escape capsule refrigerating method is characterized in that, the method comprises one-level evaporation and two kinds of operating modes of dual evaporation:
At the refrigeration initial stage, adopt dual evaporation, open one-level pressure reducing throttle valve (4) and second depressurized choke valve (7), close one-level bypass valve (3), secondary bypass valve (8) and exhaust regulating valve (11); Described one-level capillary evaporator (6) and secondary capillary evaporator (10) series operation;
When the temperature value that records when secondary thermometer (9) reaches setting value, enter the one-level evaporating state: open one-level bypass valve (3), secondary bypass valve (8), exhaust regulating valve (11), close second depressurized choke valve (7); Described one-level capillary evaporator (6) and secondary capillary evaporator (10) parallel running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210393661.6A CN102889095B (en) | 2012-10-16 | 2012-10-16 | Refrigerating device and method of mining escape capsule |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210393661.6A CN102889095B (en) | 2012-10-16 | 2012-10-16 | Refrigerating device and method of mining escape capsule |
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| CN102889095A true CN102889095A (en) | 2013-01-23 |
| CN102889095B CN102889095B (en) | 2015-03-25 |
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| CN201210393661.6A Expired - Fee Related CN102889095B (en) | 2012-10-16 | 2012-10-16 | Refrigerating device and method of mining escape capsule |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234482A (en) * | 2020-10-29 | 2021-01-15 | 河南水利与环境职业学院 | Electrical equipment with emergency cooling system and use method thereof |
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| PL271020A1 (en) * | 1988-03-03 | 1989-09-04 | Rybnicko Jastrzebskie Gwarectw | System for cooling air in underground mine workings |
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| CN102022132A (en) * | 2010-11-04 | 2011-04-20 | 黑龙江龙煤卓异救援装备科技有限公司 | Cooling and dehumidifying system of underground shelter |
| CN102108876A (en) * | 2011-01-18 | 2011-06-29 | 辽宁卓异科技有限公司 | Temperature-reducing and dehumidifying device for mine refuge underground chambers |
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| CN102305490A (en) * | 2011-09-08 | 2012-01-04 | 南京航空航天大学 | Anti-icing-plug self-defrosting type carbon dioxide opened refrigerating system and method |
-
2012
- 2012-10-16 CN CN201210393661.6A patent/CN102889095B/en not_active Expired - Fee Related
Patent Citations (8)
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|---|---|---|---|---|
| FR2621647A1 (en) * | 1987-10-13 | 1989-04-14 | Alsthom | Installation for cooling deep mines |
| FR2621647B1 (en) * | 1987-10-13 | 1990-01-05 | Alsthom | INSTALLATION FOR COOLING DEEP MINES |
| PL271020A1 (en) * | 1988-03-03 | 1989-09-04 | Rybnicko Jastrzebskie Gwarectw | System for cooling air in underground mine workings |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234482A (en) * | 2020-10-29 | 2021-01-15 | 河南水利与环境职业学院 | Electrical equipment with emergency cooling system and use method thereof |
| CN112234482B (en) * | 2020-10-29 | 2022-08-09 | 河南水利与环境职业学院 | Electrical equipment with emergency cooling system and use method thereof |
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| CN102889095B (en) | 2015-03-25 |
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