CN102392673A - Frostless-air cooling and dehumidification system and method - Google Patents
Frostless-air cooling and dehumidification system and method Download PDFInfo
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- CN102392673A CN102392673A CN2011102775627A CN201110277562A CN102392673A CN 102392673 A CN102392673 A CN 102392673A CN 2011102775627 A CN2011102775627 A CN 2011102775627A CN 201110277562 A CN201110277562 A CN 201110277562A CN 102392673 A CN102392673 A CN 102392673A
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Abstract
The invention relates to a frostless-air cooling and dehumidification system and a method. The system comprises CO2 liquid storage tanks, a manual valve, a regenerator, a first constant-pressure valve, a cooling evaporator, a second constant-pressure valve, an electromagnetic valve, a graded temperature control valve bank, a pneumatic fan, CO adsorbent, CO2 adsorbent and a CO2 storage room, liquid CO2 is throttled and cooled for two times after cold energy is recovered by the preposed regenerator, so that the evaporator cannot be frosted and the cold energy can be prerecovered, the graded temperature control valve bank regulates the flow of the CO2 in the cooling and dehumidification system by grading, so that the evaporation capacity of the cooling evaporator and the refrigerating output of the cooling and dehumidification system can be controlled and the system load and the temperature in an escape capsule can be regulated by grading, the pneumatic fan drives the air in the escape capsule to circulate, and thereby the environment in the escape capsule can be controlled in conditions suitable for living.
Description
Technical field
The present invention relates to the cool-down dehumidification device and method of extreme environment, be a kind of Frostless air cool-down dehumidification system and method under refrigeration and the filed of air conditioning, particularly unregulated power supply condition.
Background technology
Domestic in recent years accident of mine disaster takes place frequently, and the injures and deaths tragedy that invariably accompanies big and small, and miner's life security can not get ensureing.According to the investigation of countries in the world to mine accident; In accidents such as fire, blasts the dead miner that comes to harm of on-the-spot moment being taken place only accounts for the part of accident casualty number; Have quite a few miner all to be because at mine timely gug or flee from high temperature toxic and harmful scene after permeable or fire, the blast, cause drowning, suffocate or be poisoned to death.After mine disaster took place, the passage in the mine can result in blockage because of landslide, gave the rescue work manufacture difficulty.And the down-hole improper ventilation that therefore further causes, temperature rising and carbon dioxide and toxic and harmful are assembled the life security that is all threatening stranded miner constantly gradually.Therefore, the urgent danger prevention facility of under mine, settling unregulated power to drive is particularly important.When mine disaster took place, the urgent danger prevention facility provided the confined space of a safety for the miner that can't in time withdraw.This urgent danger prevention survival capsule needs to resist outside blast impulse, high-temperature flue gas, isolated toxic and harmful; Simultaneously, body inside, cabin can also provide certain oxygen, food and drinking water for stranded miner, and various emergency survival instrument, medicine, can carry out cool-down dehumidification to environment in the cabin simultaneously, remove CO
2And purify air treatment measure such as toxic and harmful, when life condition being provided, also gain time for rescue work to greatest extent for stranded miner.
Adopt CO at present
2The refrigeration cool-down system that drives is because of CO
2The throttling back pressure does not have control, causes cooling evaporator external temperature to cross low and frosting has seriously hindered the system stability reliability service, influence refrigeration, influence interchange of heat, so necessary the defrosting.Existing Defrost method, general adopt to shut down carry out electric defrosting or artificial defrosting, these two kinds of methods all exist be difficult to accept defective, though very fast like the electrical heating defrosting, need extra electric heating that heating heat is provided; Artificial defrosting is wasted time and energy; For survival capsule; Itself unregulated power drives; Electric heating obviously is not suitable for this, in case and the refrigeration cool-down system out of service, serious threat is to the personnel's of taking refuge life security; Therefore existing refrigeration cool-down system is for survival capsule, and how under the situation of non-transformer, system requirements continuous service, solving frosting is a problem that must solve.
Summary of the invention
The problem that the present invention will solve is: the urgent danger prevention survival capsule need carry out cool-down dehumidification to environment in the cabin, remove CO
2And purify air treatment such as toxic and harmful, existing CO
2There is the frosting problem in the refrigeration cool-down system that drives, make the refrigeration cool-down system reliable and stablely to move, and existing Defrost mode can not satisfy the application demand of survival capsule.
Technical scheme of the present invention is: a kind of Frostless air cool-down dehumidification system, be arranged on survival capsule inside, and comprise CO
2Fluid reservoir, hand-operated valve, regenerator, first constant pressure valve, cooling evaporimeter, second constant pressure valve, electromagnetic valve, temperature classification control valve group, pneumatic fan, CO adsorbent, CO
2Adsorbent and CO
2Between storage, CO
2Fluid reservoir is arranged on CO
2Inner between storage, liquid CO
2Be stored in the fluid reservoir, said temperature classification control valve group is composed in parallel by a plurality of hand-operated valves; Liquid CO
2Through hand-operated valve, regenerator, first constant pressure valve, get into the cooling evaporimeter then successively, absorb heat in the survival capsule, the gaseous state CO after the evaporation
2Be delivered to again in the regenerator through second constant pressure valve, with the liquid CO that imports through hand-operated valve by fluid reservoir
2Heat exchange in regenerator, the gaseous state CO after the heat exchange
2By electromagnetic valve input temp grading control valve group, export pneumatic fan again to, drive pneumatic fan running, temperature classification control valve group is used to control gaseous state CO
2Flow, cooling evaporimeter, CO adsorbent and CO
2Adsorbent is arranged on the wind direction of pneumatic fan, and air circulation in the pneumatic fans drive survival capsule makes air flow through cooling evaporimeter, CO adsorbent and CO
2Adsorbent; Drive the CO behind the pneumatic fan
2Gas is delivered to CO
2Between storage, again by CO
2Survival capsule is discharged in outlet between storage; Wherein liquid CO
2Throttling to 3.05 in first constant pressure valve ± 0.05MPa, second constant pressure valve is to the gaseous state CO of cooling evaporator outlet
2Second throttle to the required driving pressure of pneumatic fan.
Delivery outlet and regenerator gaseous state CO at the cooling evaporimeter
2Delivery outlet is respectively arranged with first safety valve and second safety valve, and first safety valve is parallelly connected with second constant pressure valve, and second safety valve and electromagnetic valve, temperature classification control valve group, pneumatic fan are parallelly connected.
Based on the method for above-mentioned a kind of Frostless air cool-down dehumidification system, in temperature-fall period, carry out twice throttling cooling, prevent frosting, with liquid CO
2Be stored in the fluid reservoir, open hand-operated valve after, liquid CO
2The regenerator of flowing through, in regenerator with the gaseous state CO that accomplishes after the cooling and dehumidifying function
2Carry out heat exchange, make liquid CO
2Cross coldly reclaiming cold, and then improve its specific refrigerating effect; Cross the liquid CO after cold
2By getting into the cooling evaporimeter after the first constant pressure valve throttling, set CO
2Evaporating pressure is 3.05 ± 0.05MPa, gas-liquid two-phase attitude CO
2Absorb heat gasification in the survival capsule, again through the driving pressure of the second constant pressure valve second throttle to the required usefulness of pneumatic fan, the CO after the second throttle cooling
2Gas and the liquid CO that comes out from fluid reservoir
2Heat exchange in regenerator; The throttling of first constant pressure valve guarantees liquid CO
2Pressure phase transition, thus make cooling evaporator surface temperature more than 0 ℃, avoid surperficial frosting; CO
2Second throttle is realized preposition cold recovery through heat exchange again to the required pressure of pneumatic fan in regenerator in second constant pressure valve; Gaseous state CO after the heat exchange
2Be delivered to temperature classification control valve group through electromagnetic valve, output drives pneumatic fan running again, and temperature classification control valve group is regulated CO in the cool-down dehumidification system through the switching classification of a plurality of hand-operated valves of control
2Flow; And the air quantity of pneumatic fan; Thereby the evaporation capacity in the control cooling evaporimeter, and control cool-down dehumidification system refrigerating capacity are realized temperature in classification regulating system load and the cabin; First constant pressure valve and second constant pressure valve are according to the switching classification interlock adjustment of temperature classification control valve group, the constant pressure in setting of maintenance system; Pneumatic fan running drives air circulation in the survival capsule, makes air flow through cooling evaporimeter, CO adsorbent and CO
2Adsorbent is realized the circulation of cool-down dehumidification and purification filtering; Drive the low pressure CO behind the pneumatic fan
2Gas leads to CO again
2Between storage, play and reduce CO
2The effect of fluid reservoir environment temperature is finally by CO
2Outlet between storage is discharged outside the survival capsule.
Delivery outlet and regenerator gaseous state CO at the cooling evaporimeter
2Delivery outlet is respectively arranged with first safety valve and second safety valve, and when cooling evaporimeter internal pressure exceeded setting value, first safety valve was opened bypass segment CO automatically
2Gas carries out pressure release; When the regenerator internal pressure surpassed can being worth perhaps of setting, second safety valve was opened bypass segment CO automatically
2Gas carries out pressure release.
Cooling is provided with the system pressure that first pressure meter and second pressure meter are used to observe first constant pressure valve and the second constant pressure valve exit.
The present invention is directed to the deficiency of prior art, propose a kind of Frostless air cool-down dehumidification system and cool-down dehumidification method thereof, be used for the urgent danger prevention survival capsule of environment such as mine being carried out cool-down dehumidification, liquid CO
2Reclaim cold after twice throttling lowered the temperature through preposition regenerator, reach the purpose of evaporimeter frost-free and the preposition recovery of cold, make refrigeration cool-down system stability reliability service.Further, can through regulating temperature classification control valve group number, come CO in the regulating system pipeline according to height to temperature in the demand of cold or the survival capsule
2Flow and the air quantity of pneumatic fan, thereby the evaporation capacity in the control evaporimeter reaches the purpose of temperature in classification regulating system load and the cabin, simultaneously environment in the cabin is controlled under the life condition that suits, for the longer time of striving for is rescued in mine disaster.
Beneficial effect of the present invention is:
1, the invention solves the frosting problem of evaporimeter: control the liquid CO after the throttling
2Be 3.05 ± 0.05MPa, make CO
2Temperature is more than-5 ℃ when phase transformation for liquid, and the evaporation hull-skin temperature near 0 ℃, thereby is fundamentally avoided the generation of frosting more than 0 ℃; Gaseous state CO behind the second throttle
2The liquid CO that in regenerator, fluid reservoir is come out
2Carried out coldly, and realized the preposition recovery of cold, thereby increased specific refrigerating effect, and then made full use of stored CO
2Cold; Frostless air cool-down dehumidification of the present invention system has fundamentally avoided the ubiquitous frosting problem of refrigeration system; Need not shut down and carry out defrosting work; The cryogenic temperature of Frostless air cool-down dehumidification system has been controlled in twice throttling on the one hand, avoids the frosting phenomenon, makes liquid CO on the other hand
2Cold thoroughly discharge liquid CO fully
2The cold total amount that is discharged is certain, and disposable release brings the frosting problem easily, and the present invention comes CO in the constant system through constant pressure valve
2Flow, guarantee the refrigeration work that carries out of system stability, realize the preposition recovery of cold through regenerator in addition, improved liquid CO
2The utilization rate of the cold that is discharged; Frostless air cool-down dehumidification of the present invention system neither be simply to CO in the system
2Control, consider the actual needs of survival capsule, the operation of Frostless air cool-down dehumidification system should adapt to the needs of real time environment state, controls liquid CO
2Use amount so that Frostless air cool-down dehumidification system can work the as far as possible long time; For example personnel's number can influence the temperature environment in the survival capsule; Then need the cooling-down effect of how much adjusting according to the personnel that take refuge, in order to avoid excessively lower the temperature or the cooling deficiency, the present invention is provided with temperature classification control valve group; Only need the switching of several hand-operated valves in the simple control temperature classification control valve group, can be to gaseous state CO
2Flow carry out grading control, simple operation, so the operation of Frostless air cool-down dehumidification of the present invention system is dynamic, wherein CO
2Flow change.The present invention under the system environments of dynamic operation, Adaptive Control CO
2Pressure; Thereby avoid frosting; Keep system stable operation simultaneously, make the application of refrigeration system in survival capsule satisfy various physical conditions, the present invention is taking all factors into consideration and is weighing structure and the operation method thereof that obtains after the design to being used for survival capsule refrigeration cool-down dehumidification mode.
2, in system's running, control of the present invention system has multistage adjustable function: according to by the lifesaver to variation of temperature in the demand of cold or the survival capsule, through regulating temperature classification control valve group, CO in the control system pipeline
2Flow and the air quantity of pneumatic fan, thereby the evaporation capacity in the control cooling evaporimeter reaches the purpose of temperature in classification regulating system load and the cabin, and air realization cool-down dehumidification and purification filtering in the survival capsule is circulated; Secondly, when system's constant load operation, when temperature was lower than design temperature in the cabin in, electromagnetic valve promptly cut out (this electromagnetic valve has storage battery power supply), made system out of service stoping the continuation decline of temperature, otherwise electromagnetic valve is then opened when temperature is higher than design temperature in the cabin.Above-mentioned two functions can make the liquid CO of quantitative storage
2Cold-producing medium is issued to the use of maximum duration in guarantor's limit of life situation, to keep longer rescue time.
Description of drawings
Fig. 1 is the structure chart of system of the present invention.
Fig. 2 is CO
2Refrigeration system pressure-enthalpy diagram.
The specific embodiment
Below in conjunction with embodiment the present invention is described.
1, system constitutes
As shown in Figure 1, system of the present invention is arranged on survival capsule inside, comprises CO
2Fluid reservoir 1, hand-operated valve 2, regenerator 3, first constant pressure valve 4, cooling evaporimeter 6, second constant pressure valve 7, electromagnetic valve 10, temperature classification control valve group 12, pneumatic fan 13, CO adsorbent 14, CO
2Adsorbent 15 and CO
2Between storage 16.CO
2 Fluid reservoir 1 is placed on CO
216 inside between storage, liquid CO
2Be stored in the fluid reservoir 1, said temperature classification control valve group 12 is composed in parallel by a plurality of hand-operated valves.Liquid CO
2Through hand-operated valve 2, regenerator 3, first constant pressure valve 4, get into cooling evaporimeter 6 then successively, absorb heat in the survival capsule, change gaseous state CO into
2, gaseous state CO
2Be delivered to again in the regenerator 3 through second constant pressure valve 7, with the liquid CO that imports through hand-operated valve 2 from fluid reservoir 1
2Heat exchange in regenerator 3, the gaseous state CO after the heat exchange
2The electromagnetic valve 10 of flowing through turns round with the pneumatic fan 13 of temperature classification control valve group 12 rear drives, and temperature classification control valve group 12 is used to control gaseous state CO
2Flow, and the air quantity of pneumatic fan, thereby evaporation capacity and cool-down dehumidification system refrigerating capacity in the control cooling evaporimeter are realized temperature in the classification adjusting cabin; Cooling evaporimeter 6, CO adsorbent 14 and CO
2Adsorbent 15 is arranged on the wind direction of pneumatic fan 13, and pneumatic fan 13 drives air circulation in the survival capsules, makes air flow through cooling evaporimeter 6, CO adsorbent 14 and CO
2Adsorbent 15; Drive the CO behind the pneumatic fan 13
2Gas is delivered to CO
2Between storage 16, again by CO
2Survival capsule is discharged in 16 outlet between storage; The liquid CO of 4 pairs of inflows of first constant pressure valve wherein
2Throttling, control CO
2Evaporating pressure is 3.05 ± 0.05MPa, the gaseous state CO that 7 pairs of cooling evaporimeters of second constant pressure valve 6 flow out
2Carry out second throttle, control constant pressure valve outlet pressure is the driving pressure of the required usefulness of pneumatic fan, and the driving pressure here requires to confirm according to the pneumatic fan inlet pressure of selecting for use.Liquid CO
2, preposition regenerator 3, reaches the purpose of evaporimeter frost-free and the preposition recovery of cold after reclaiming cold respectively through first constant pressure valve 4 and second constant pressure valve, 7 twice throttling cooling.CO
2Fluid reservoir 1 is placed on CO
216 inside between storage are through the CO that discharges
2To 16 lowering the temperature between storing.
In order to guarantee evaporimeter 6 and regenerator 3 interior CO
2Gas is safe and reliable to operation, at the outlet and the regenerator 3 gaseous state CO of evaporimeter 6
2Outlet is respectively arranged with first safety valve 9 and second safety valve, 11, the first safety valves 9 are parallelly connected with second constant pressure valve 7, and second safety valve 11 and electromagnetic valve 10, temperature classification control valve group 12, pneumatic fan 13 are parallelly connected.When evaporimeter 6 internal pressures exceeded setting value, first safety valve 9 was opened automatically, carries out pressure release; When regenerator 3 internal pressures surpassed can being worth perhaps of setting, second safety valve 11 was opened automatically, carries out pressure release.
Be provided with between first constant pressure valve 4 and the evaporimeter 6 between first pressure meter, 5, the second constant pressure valves 7 and the regenerator 3 and be provided with second pressure meter 8, be respectively applied for the system pressure of observing first constant pressure valve 4 and second constant pressure valve, 7 exits.
Shown in Fig. 2 system of the present invention pressure-enthalpy diagram, CO represented in the letter among Fig. 2
2Cold-producing medium is in the duty point at each position, and is corresponding with institute's cursor position among Fig. 1.Liquid CO
2Be stored in the fluid reservoir 1 and be state A, open hand-operated valve 2 after, the liquid CO of state A
2The cold-producing medium regenerator 3 of flowing through, in regenerator 3 with the gaseous state CO of state E
2Carry out heat exchange, make liquid CO
2Cross the cold state B that is; Cross the cold liquid CO in back
2By 4 throttlings of first constant pressure valve, becoming constant pressure is the gas-liquid two-phase admixture C of 3.05 ± 0.05MPa, gets into cooling evaporimeter 6 backs and absorbs heats in the survival capsules and gasify and be state D; The gaseous state CO of state D
2Be throttled to by second constant pressure valve 7 again and drive the required pressure of pneumatic fan, at this moment gaseous state CO
2Be state E; The gaseous state CO of state E
2Get into regenerator 3, the liquid CO of absorbing state A
2Part sensible heat and temperature rise to state F; The gaseous state CO of state F
2After electromagnetic valve 10 and the temperature classification control valve group 12 of flowing through again, drive pneumatic fan 13, make in the survival capsule air flow through CO adsorbent 14 and CO
2Adsorbent 15 and cooling evaporimeter 6 are realized the purification filtering and the cool-down dehumidification of air, and simultaneously, the circulating of air makes that temperature more is tending towards even in the cabin; CO through pneumatic fan 13
2Gas is state G, flows into CO
2Between storage 16, to the CO in 16 between storing
2 Fluid reservoir 1 cools off the back and discharges out of my cabin.
The bypass line at first safety valve 9 and second safety valve, 11 places mainly is that taking into account system safely and steadily runs in the system of the present invention.When second constant pressure valve, 7 misoperations, regulate malfunctioning or when breaking down, can cause cooling evaporimeter 6 hypertonia; When electromagnetic valve 10 or temperature classification control valve group 12 or pneumatic fan 13 misoperations, regulate malfunctioning or when breaking down, can cause regenerator 3 hypertonia.For avoiding the generation of these phenomenons; System configuration bypass line, and control, as to set first safety valve, 9 arrival end pressure preset values be 3.1MPa by first safety valve 9 and second safety valve 11; Second safety valve, 11 arrival end pressure preset values are 0.4MPa; When surpassing preset value, safety valve is opened automatically, carries out pressure release.
2, system's control
1) first constant pressure valve 4 act as the control evaporating pressure to guarantee cooling evaporimeter 6 surperficial frost-frees.After the survival capsule internal loading changes, the liquid CO in the cooling evaporimeter 6
2Corresponding variation can take place in amount of vaporization; First constant pressure valve 4 can be regulated its aperture automatically according to the height of evaporating pressure, and when pressure raise, the aperture of valve reduced automatically; Otherwise increase automatically, thereby regulate the liquid supply rate that gets into cooling evaporimeter 6 through the pressure in its exit of automatic constant.
2) system can also carry out artificial multistage adjusting through temperature classification control valve group 12.Trapped personnel can be regulated temperature classification control valve group 12 according to temperature in the survival capsule or number; As: survival capsule quota 12 people design is pressed by system; Internal loading is less when the cabin,, only needs to open in the temperature classification control valve group 12 at for example 1/3 o'clock of the not enough quota number of number.Along with the increase of load or number, can open two control valves in addition step by step; Otherwise then can close by opening opposite sequence step by step.Through regulating CO in the temperature classification control valve group 12 control systems
2Flow and the rotating speed of pneumatic blower fan.After regulating 12 actions of temperature classification control valve group,, make temperature classification control valve group 12 preceding constant pressures through the chain control of first constant pressure valve 4 and second constant pressure valve 7; Simultaneously; Along with temperature classification control valve group 12 is opened one by one, downstream pressure raises, and causes the CO of the pneumatic fan 13 of flowing through
2Flow increases, and its rotating speed improves, air quantity increases.Finally, CO in the cooling evaporimeter 6
2The increase of the increase of flow and pneumatic fan 13 air quantity makes cooling evaporimeter 6 evaporation capacity increase, and increases refrigerating capacity and also increases thereupon.
3) electromagnetic valve 10 is used to the machine of stopping (by storage battery power supply) of the system that controls.When system was in the constant load operation, when in a single day temperature reached preset temperature in the survival capsule, electromagnetic valve 10 promptly cut out, and made system out of service to stop the continuation decline of temperature; Otherwise when temperature was elevated to preset value in the cabin, electromagnetic valve 10 recovered to open, and operation restarts in system.
The present invention adopts CO
2As cold-producing medium, utilize liquid CO
2Two phases evaporation heat absorption after the throttling cooling, for escape capsule of mine provides necessary cold, and through constant pressure valve grading control evaporating pressure to prevent frosting.The gaseous state CO of gasification back second throttle cooling gained
2High-pressure liquid CO in regenerator and fluid reservoir outflow
2Carry out heat exchange, play the effect of the preposition recovery of cold, flow through afterwards electromagnetic valve and temperature classification control valve are for pneumatic fan provides power.Make through pneumatic fan that air passes through CO adsorbent, CO successively in the survival capsule
2Adsorbent and cooling evaporimeter are realized the purification filtering and the cool-down dehumidification of air in the cabin.By the machine of stopping of electromagnetic valve controlling system, temperature classification control valve group is regulated CO
2Temperature in flow and the cabin.With existing CO
2The refrigeration cool-down system that drives compares, and the present invention proposes a kind of classification throttling step-down and preposition cold recovery technology, control CO
2Thereby evaporating pressure reach the frostless purpose of evaporator external.Through the rational deployment system architecture, fundamentally avoided evaporimeter frosting, Load Regulation difficulty and system be prone to problem such as superpressure generation.
Claims (4)
1. a Frostless air cool-down dehumidification system is characterized in that being arranged on survival capsule, comprises CO
2Fluid reservoir (1), hand-operated valve (2), regenerator (3), first constant pressure valve (4), cooling evaporimeter (6), second constant pressure valve (7), electromagnetic valve (10), temperature classification control valve group (12), pneumatic fan (13), CO adsorbent (14), CO
2Adsorbent (15) and CO
2Between storage (16), CO
2Fluid reservoir (1) is arranged on CO
2(16) inside between storage, liquid CO
2Be stored in the fluid reservoir (1), said temperature classification control valve group (12) is composed in parallel by a plurality of hand-operated valves; Liquid CO
2Through hand-operated valve (2), regenerator (3), first constant pressure valve (4), get into cooling evaporimeter (6) then successively, absorb heat in the survival capsule, the gaseous state CO after the evaporation
2Be delivered to again in the regenerator (3) through second constant pressure valve (7), with the liquid CO that imports through hand-operated valve (2) by fluid reservoir (1)
2Heat exchange in regenerator (3), the gaseous state CO after the heat exchange
2By electromagnetic valve (10) input temp grading control valve group (12), export pneumatic fan (13) again to, drive pneumatic fan (13) running, temperature classification control valve group (12) is used to control gaseous state CO
2Flow, cooling evaporimeter (6), CO adsorbent (14) and CO
2Adsorbent (15) is arranged on the wind direction of pneumatic fan (13), and pneumatic fan (13) drives air circulation in the survival capsule, makes air flow through cooling evaporimeter (6), CO adsorbent (14) and CO
2Adsorbent (15); Drive the CO behind the pneumatic fan (13)
2Gas is delivered to CO
2Between storage (16), again by CO
2Survival capsule is discharged in the outlet of (16) between storage; Wherein liquid CO
2Throttling to 3.05 ± 0.05MPa in first constant pressure valve (4), second constant pressure valve (7) is to the gaseous state CO of cooling evaporimeter (6) outlet
2Second throttle to the required driving pressure of pneumatic fan.
2. a kind of Frostless air cool-down dehumidification according to claim 1 system is characterized in that delivery outlet and regenerator (3) gaseous state CO at cooling evaporimeter (6)
2Delivery outlet is respectively arranged with first safety valve (9) and second safety valve (11), and first safety valve (9) is parallelly connected with second constant pressure valve (7), and second safety valve (11) and electromagnetic valve (10), temperature classification control valve group (12), pneumatic fan (13) are parallelly connected.
3. based on the method for claim 1 or 2 described a kind of Frostless air cool-down dehumidification systems, it is characterized in that in temperature-fall period, carrying out twice throttling cooling, prevent frosting, liquid CO
2Be stored in the fluid reservoir (1), open hand-operated valve (2) after, liquid CO
2The regenerator (3) of flowing through, in regenerator (3) with the gaseous state CO that accomplishes after the cooling and dehumidifying function
2Carry out heat exchange, make liquid CO
2Cross coldly reclaiming cold, and then improve its specific refrigerating effect; Cross the liquid CO after cold
2By getting into cooling evaporimeter (6) after first constant pressure valve (4) throttling, set CO
2Evaporating pressure is 3.05 ± 0.05MPa, gas-liquid two-phase attitude CO
2Absorb heat gasification in the survival capsule, again through the driving pressure of second constant pressure valve (7) second throttle to the required usefulness of pneumatic fan, the CO after the second throttle cooling
2Gas and the liquid CO that comes out from fluid reservoir (1)
2Heat exchange in regenerator (3); The throttling of first constant pressure valve (4) guarantees liquid CO
2Pressure phase transition, thus make cooling evaporimeter (6) surface temperature more than 0 ℃, avoid surperficial frosting; CO
2Second throttle is realized preposition cold recovery through heat exchange again to the required pressure of pneumatic fan (13) in regenerator (3) in second constant pressure valve (7); Gaseous state CO after the heat exchange
2Be delivered to temperature classification control valve group (12) through electromagnetic valve (10), output drives pneumatic fan (13) running again, and temperature classification control valve group (12) is regulated CO in the cool-down dehumidification system through the switching classification of a plurality of hand-operated valves of control
2Flow; And the air quantity of pneumatic fan (13); Thereby the evaporation capacity in the control cooling evaporimeter (6), and control cool-down dehumidification system refrigerating capacity are realized temperature in classification regulating system load and the cabin; First constant pressure valve (4) and second constant pressure valve (7) are according to the switching classification interlock adjustment of temperature classification control valve group (12), the constant pressure in setting of maintenance system; Pneumatic fan (13) running drives air circulation in the survival capsule, makes air flow through cooling evaporimeter (6), CO adsorbent (14) and CO
2Adsorbent (15) is realized the circulation of cool-down dehumidification and purification filtering; Drive the low pressure CO behind the pneumatic fan (13)
2Gas leads to CO again
2Between storage (16), play and reduce CO
2The effect of fluid reservoir (1) environment temperature is finally by CO
2The outlet of (16) is discharged outside the survival capsule between storage.
4. cool-down dehumidification method according to claim 3 is characterized in that delivery outlet and regenerator (3) gaseous state CO at cooling evaporimeter (6)
2Delivery outlet is respectively arranged with first safety valve (9) and second safety valve (11), and when lowering the temperature evaporimeter (6) when internal pressure exceeds setting value, first safety valve (9) is opened bypass segment CO automatically
2Gas carries out pressure release; When regenerator (3) internal pressure surpassed can being worth perhaps of setting, second safety valve (11) was opened bypass segment CO automatically
2Gas carries out pressure release.
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| CN201110277562.7A CN102392673B (en) | 2011-09-19 | 2011-09-19 | Frostless-air cooling and dehumidification system and method |
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| CN201110277562.7A CN102392673B (en) | 2011-09-19 | 2011-09-19 | Frostless-air cooling and dehumidification system and method |
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| CN102720524A (en) * | 2012-06-30 | 2012-10-10 | 长治清华机械厂 | Cooling and dehumidifying device of escape capsule |
| CN102877879A (en) * | 2012-10-16 | 2013-01-16 | 周振芳 | Mining escape capsule refrigerating system and method |
| CN102877878A (en) * | 2012-10-08 | 2013-01-16 | 南京玖壹环境科技有限公司 | Multiple-gas-source-driven refuge chamber refrigeration and purification system and refrigeration and purification method thereof |
| CN102966366A (en) * | 2012-12-04 | 2013-03-13 | 中煤科工集团重庆研究院 | Mining cold accumulation and carbon dioxide coupled refrigeration system and method |
| CN103711516A (en) * | 2012-10-06 | 2014-04-09 | 德拉格安全股份两合公司 | Personal safety system and process for the operation of a personal safety system |
| CN103711517A (en) * | 2012-10-06 | 2014-04-09 | 德拉格安全股份两合公司 | Personal protection system |
| CN116107359A (en) * | 2022-02-22 | 2023-05-12 | 安康泰(烟台)生命科学研究院有限公司 | Intelligent life cabin internal environment humidity control system |
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| CN102644474A (en) * | 2012-04-25 | 2012-08-22 | 大连亿斯德制冷设备有限公司 | Mobile cooling refrigeration device for mine |
| CN102720524A (en) * | 2012-06-30 | 2012-10-10 | 长治清华机械厂 | Cooling and dehumidifying device of escape capsule |
| CN103711516A (en) * | 2012-10-06 | 2014-04-09 | 德拉格安全股份两合公司 | Personal safety system and process for the operation of a personal safety system |
| CN103711517A (en) * | 2012-10-06 | 2014-04-09 | 德拉格安全股份两合公司 | Personal protection system |
| US20140096541A1 (en) * | 2012-10-06 | 2014-04-10 | Dräger Safety AG & Co. KGaA | Personal safety system and process for the operation of a personal safety system |
| US9618255B2 (en) | 2012-10-06 | 2017-04-11 | Dräger Safety AG & Co. KGaA | Personal safety system and process for the operation of a personal safety system |
| CN103711516B (en) * | 2012-10-06 | 2017-05-03 | 德拉格安全股份两合公司 | Personal safety system and process for the operation of a personal safety system |
| CN102877878A (en) * | 2012-10-08 | 2013-01-16 | 南京玖壹环境科技有限公司 | Multiple-gas-source-driven refuge chamber refrigeration and purification system and refrigeration and purification method thereof |
| CN102877878B (en) * | 2012-10-08 | 2014-10-15 | 南京玖壹环境科技有限公司 | Multiple-gas-source-driven refuge chamber refrigeration and purification system and refrigeration and purification method thereof |
| CN102877879A (en) * | 2012-10-16 | 2013-01-16 | 周振芳 | Mining escape capsule refrigerating system and method |
| CN102966366A (en) * | 2012-12-04 | 2013-03-13 | 中煤科工集团重庆研究院 | Mining cold accumulation and carbon dioxide coupled refrigeration system and method |
| CN116107359A (en) * | 2022-02-22 | 2023-05-12 | 安康泰(烟台)生命科学研究院有限公司 | Intelligent life cabin internal environment humidity control system |
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