CN102678158A - CO2 temperature and humidity adjustment and air purification system for sealed space - Google Patents
CO2 temperature and humidity adjustment and air purification system for sealed space Download PDFInfo
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- CN102678158A CN102678158A CN2012100049362A CN201210004936A CN102678158A CN 102678158 A CN102678158 A CN 102678158A CN 2012100049362 A CN2012100049362 A CN 2012100049362A CN 201210004936 A CN201210004936 A CN 201210004936A CN 102678158 A CN102678158 A CN 102678158A
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Abstract
The invention provides a CO2 temperature and humidity adjustment and air purification system for a sealed space. The CO2 temperature and humidity adjustment and air purification system comprises a CO2 liquid storage device (1), a throttling device and an evaporator (15), wherein the CO2 liquid storage device (1), a main switch valve (3), the throttling device, the evaporator (15) and a view mirror (16) are sequentially connected by using a connection pipe; a main pressure meter (2) is arranged on one section of the connection pipe between the CO2 liquid storage device (1) and the main switch valve (3); the throttling device is a two-step throttling middle air diverting device; and an air purification device (12) is respectively connected with the two-step throttling middle air diverting device and the box body equipped with the evaporator (15) through the connection pipe. With the adoption of the system provided by the invention, the temperature and humidity adjustment and the air purification can be carried out on the sealed space.
Description
Technical field
The present invention relates to a kind of CO that in confined space, provides safeguard for people's life security
2Humiture is regulated and air cleaning system, and the present invention can be used for urgent danger prevention system under the coal mine, and the urgent danger prevention system also comprises removable survival capsule, refuge chamber under the coal mine.
Background technology
When external environment is special, needs to exist a confined space to ensure people's life security, and the condition of keeping people living is provided to greatest extent.CO
2Humiture is regulated with air cleaning system and is arranged in the confined space, is used to create the environment that is suitable for people living.The people survives in confined space, has heat requirement and produces, and for controlling humiture in the scope of a suitable people living, needs the humiture regulating system.Use CO
2The open type air-conditioning system is carried out the humiture adjusting, need not use external power source or other energy, also need not use internal battery to drive air-conditioning system.CO
2As refrigeration working medium, safe, nontoxic, fire-retardant and explosion-proof, better guarantor's life security in the use.Work as CO
2CO in the device for storing liquid
2Gas source temperature is lower than CO
2Critical-temperature, i.e. CO
2When under subcritical state, working, its heat exchange efficiency is high, and refrigeration is obvious; And work as CO
2CO in the device for storing liquid
2Gas source temperature is higher than CO
2Critical-temperature, i.e. CO
2When under supercriticality, working, its heat exchange efficiency will raise and reduction fast with temperature, and refrigeration reduces greatly.So, how to reduce because of CO
2CO in the device for storing liquid
2The gas source temperature height is to CO
2The influence of refrigeration belongs to a technical barrier.External environment flow into the people living process in the CO, the CO that produce
2And NH
3Deng toxic and harmful, be present in the confined space and can't discharge, need air cleaning system the toxic and harmful in the confined space is removed.The speed that toxic and harmful in the confined space is removed in natural convection is slow; Be difficult to reach requirement; And air cleaning system uses the interior air of fan drive confined space to flow fast, through the absorption of toxic and harmful adsorpting formulation, can reach the purpose and the requirement of air purification.Utilize CO
2The high pressure CO that the humiture regulating system is discharged
2The kinetic energy of tail gas as the energy source of air cleaning system, need not use external power source or other energy, need not use internal battery yet, and the condition of keeping people living can be provided better.Based on above-mentioned background, and consider relative difficulty, researched and developed the present invention.
Summary of the invention
The object of the present invention is to provide a kind of CO that is used for confined space
2Humiture is regulated and air cleaning system, to solve above-mentioned technical barrier, ensures people's in the confined space life security, and the condition of keeping people living is provided to greatest extent.
The object of the invention is realized through following technical scheme:
A kind of CO that is used for confined space
2Humiture is regulated and air cleaning system, comprises CO
2Device for storing liquid, throttling arrangement and evaporimeter, the master switch valve is arranged on said CO
2Between device for storing liquid and the throttling arrangement, said CO
2Device for storing liquid, master switch valve, throttling arrangement, evaporimeter are connected with tube connector with visor successively, at said CO
2Tube connector between device for storing liquid and the master switch valve is provided with the gross pressure table for one section; Said throttling arrangement is a two-stage throttling intermediate section device of air; Between said two-stage throttling intermediate section device of air and evaporimeter, be provided with air cleaning unit, said air cleaning unit is connected with the casing that said evaporimeter is housed with said two-stage throttling intermediate section device of air respectively through tube connector.
As preferably; The throttling of two-stage described in the present invention intermediate section device of air comprises first internal exchanger, second internal exchanger, the first main choke valve, the second main choke valve, gas-liquid separator, first auxiliary throttle valve and second auxiliary throttle valve; Said first internal exchanger, the first main choke valve, gas-liquid separator, first auxiliary throttle valve, second internal exchanger are connected with tube connector with the second main choke valve successively, and the said second auxiliary throttle valve two ends are connected with visor with said first internal exchanger respectively through tube connector.
On one section of the tube connector between the said second main choke valve and the evaporimeter, be provided with the partial pressure table among the present invention; The air motor of said first internal exchanger, second internal exchanger, pressure limiting valve and said air cleaning unit is connected with tube connector successively; The air outlet of the fan of said air cleaning unit is connected through tube connector with the air intake of the casing that said evaporimeter is housed, and said one way valve is connected through tube connector with air motor.
Evaporimeter described in the present invention is at least one, and said choke valve comprises manual throttle valve, heating power expansion valve and electric expansion valve, also comprises capillary tube and restriction sleeve.
CO described in the present invention
2Device for storing liquid is arranged in another outer safe space of confined space, and in said safe space, also comprising increases the CO that insulating sandwich is handled
2Device for storing liquid, said CO
2Device for storing liquid is at least one, and said manual safety valve and unidirectional relief valve are installed in the said confined space, and said manual safety valve and unidirectional relief valve are installed in the said safe space.
Supply CO among the present invention
2The said tube connector that flows through is copper pipe or an alloy pipe high pressure resistant, low temperature.
Beneficial effect:
The present invention makes said humiture regulating system performance receive CO through adopting two-stage throttling intermediate section gas technology
2The influence of gas source temperature is very little, i.e. CO
2Working medium all has the good cooling effect on moisture extraction under subcritical and supercritical behavior.Through adopting the tail gas reutilization technology, with said CO
2The high pressure CO that the humiture regulating system is discharged
2The kinetic energy of tail gas rationally utilizes, and drives the rotation of said air motor and fan, energy source is provided for said air cleaning system, need not power supply or other power resources.
Description of drawings
Fig. 1 is a system flow chart of the present invention.
The specific embodiment
As shown in Figure 1, the present invention is provided with CO in another safe space 21 outside confined space 18
2Device for storing liquid 1 is installed two-stage throttling intermediate section device of air and evaporimeter 15 in the confined space 18, between two-stage throttling intermediate section device of air and the evaporimeter 15 air cleaning unit 12 is installed, and master switch valve 3 is arranged on CO
2Between device for storing liquid 1 and the two-stage throttling intermediate section device of air, CO
2Device for storing liquid 1, master switch valve 3, two-stage throttling intermediate section device of air, evaporimeter 15 are connected CO successively with visor 16 with tube connector
2Also be provided with gross pressure table 2 on one section of the tube connector between device for storing liquid 1 and the master switch valve 3, air cleaning unit 12 is connected with the casing that evaporimeter 15 is housed with two-stage throttling intermediate section device of air respectively through tube connector.
Two-stage throttling intermediate section device of air among the present invention comprises first internal exchanger 4, second internal exchanger, 8, first main choke valve 5, the second main choke valve 10, gas-liquid separator 6, first auxiliary throttle valve 7 and second auxiliary throttle valve 17; First internal exchanger, 4, the first main choke valve 5, gas-liquid separator 6, first auxiliary throttle valve 7, second internal exchanger 8 are connected with tube connector with the second main choke valve 10 successively, and second auxiliary throttle valve, 17 two ends are connected with visor 16 with first internal exchanger 4 respectively through tube connector.
On one section of the tube connector between the second main choke valve 10 and the evaporimeter 15, be provided with partial pressure table 11 among the present invention; The air motor 13 of first internal exchanger 4, second internal exchanger 8, pressure limiting valve 9 and air cleaning unit 12 is connected with tube connector successively; The air outlet of the fan 14 of air cleaning unit 12 is connected through tube connector with the air intake of the casing that evaporimeter 15 is housed, and one way valve 24 and air motor 13 are connected through tube connector.
CO among the present invention
2Device for storing liquid 1 is arranged in another safe space 21 outside the confined space 18, and in safe space 21, also comprising increases the CO that insulating sandwich is handled
2Device for storing liquid 1, CO
2Device for storing liquid 1 is at least one, and manual safety valve 19 and unidirectional relief valve 20 are installed in the confined space 18, and manual safety valve 22 and unidirectional relief valve 23 are installed in the safe space 21.
Supply CO among the present invention
2The tube connector that flows through is copper pipe or an alloy pipe high pressure resistant, low temperature.
CO among the present invention
2The humiture regulating system is with natural refrigerant CO
2As the open type air-conditioning refrigeration system of refrigeration working medium, adopt two-stage throttling intermediate section gas technology, make humiture regulating system performance receive CO
2The influence of gas source temperature is very little, i.e. CO
2Working medium all has the good cooling effect on moisture extraction under subcritical and supercritical behavior.
Confined space 18 can comprise urgent danger prevention system under the coal mine among the present invention, and the urgent danger prevention system can comprise removable survival capsule and refuge chamber under the coal mine.
Internal exchanger comprises the bushing type internal exchanger among the present invention, micropassage type internal exchanger, brazing-sheet type internal exchanger and plate-fin internal exchanger.
CO among the present invention
2Device for storing liquid 1 can comprise that use vacuum heat-preserving pressure vessel is as CO
2Device for storing liquid 1, with extraneous adiabatic, it is constant that gas source temperature keeps, and not influenced by ambient temperature.CO
2The gaseous state CO that the humiture regulating system is discharged
2Tail gas comprises CO after flowing out confined space 18
2Pipeline is directly through placing CO
2The safe space 21 of device for storing liquid 1 is led in the external environment then; Also comprise to CO
2Device for storing liquid 1 installs insulating sandwich additional, CO
2Pipeline connection CO
2The insulating sandwich of device for storing liquid 1 leads in the external environment then.
Air cleaning system of the present invention adopts the tail gas reutilization technology, with CO
2The high pressure CO that the humiture regulating system is discharged
2The kinetic energy of tail gas rationally utilizes, and drives air motor 13 and fan 14 rotations, to air cleaning system energy source is provided, and need not power supply or other power resources.
CO among the present invention
2Humiture regulate with air cleaning system can use one, two or more.CO
2The humiture regulating system can use one, two or more.With high pressure CO
2For the air cleaning system of power resources can use one, two or more.
The course of work of the present invention:
Open CO
2The switch of device for storing liquid 1 can be observed CO through the gross pressure table 2 in the confined space 18
2The variation in use of device for storing liquid 1 pressure, decompression force whether normally change.Open master switch valve 3, liquid CO
2From CO
2Device for storing liquid 1 flows out liquid CO
2Flow through first internal exchanger 4, then flow into the first main choke valve 5, gas-liquid separator 6, be divided into gaseous state CO
2With liquid CO
2Two-way.Gaseous state CO
2Enter in the external environment through pressure limiting valve 9, air motor 13 and one way valve 24 through first auxiliary throttle valve 7 and second internal exchanger, 8 backs.Liquid CO
2Flow to the second main choke valve 10 through second internal exchanger 8, then in the inflow evaporator 15, liquid CO
2Become gaseous state CO after the interchange of heat
2, behind visor 16 inflows second auxiliary throttle valve 17, flow into first internal exchanger 4 again, enter in the external environment through pressure limiting valve 9, air motor 13 and one way valve 24 again.
Work as CO
2Device for storing liquid 1 gas source temperature is higher than CO
2During critical-temperature, mainly improve refrigeration and effect, make CO through two-stage throttling intermediate section gas technology
2The humiture regulating system receives CO
2The influence of gas source temperature is very little, i.e. CO
2Working medium all has the good cooling effect on moisture extraction under subcritical and supercritical behavior.Also can be through directly reducing CO
2The method of gas source temperature in the device for storing liquid 1 improves CO
2The refrigeration usefulness of working medium.Use the vacuum heat-preserving pressure vessel as CO
2Device for storing liquid 1, with extraneous adiabatic, it is constant that gas source temperature keeps, and not influenced by ambient temperature.Work as CO
2The gaseous state CO that the humiture regulating system is discharged
2After tail gas flows out confined space 18, CO
2Pipeline is directly through placing CO
2The safe space 21 of device for storing liquid 1 is led in the external environment then, reduces CO through the temperature that reduces in the safe space 21
2Gas source temperature in the device for storing liquid 1; Perhaps give CO
2Device for storing liquid 1 installs insulating sandwich additional, CO
2Tail gas pipeline connection CO
2The insulating sandwich of device for storing liquid 1 is directly given CO
2Source of the gas cooling in the device for storing liquid 1 is led in the external environment then.
Adopt the tail gas reutilization technology, rationally utilize CO
2The high pressure CO that the humiture regulating system is discharged
2The kinetic energy of tail gas is as the energy source of air cleaning system.High pressure CO
2Tail gas drives air motor 13 rotations, and air motor 13 is coaxial with fan 14, drives fan 14 rotations.Air cleaning system makes the air in the confined space 18 pass through air cleaning unit 12 under the drive of fan 14, gets rid of toxic and harmful and dust, plays the effect that purifies air in the confined space 18.
The air outlet of air cleaning unit 12 is connected with the air intake of the casing that evaporimeter 15 is housed, and the air that obtains air cleaning unit 12 purifications blows to evaporimeter 15 through fan 14, carries out cool-down dehumidification.Cool-down dehumidification and cleaned air passes through favorably situated pipeline air outlet, evenly flow in the confined space 18 again, supply the people to breathe use.
CO
2The refrigerating capacity size of humiture regulating system can be regulated through the first main choke valve 5 and the second main choke valve 10, and can be through the liquid CO in the visor 16 observation pipelines
2Whether be converted into gaseous state fully.If temperature is too high in the confined space 18, CO is described
2Refrigerant flow is less than normal, and refrigerating capacity is not enough, should increase the aperture of the first main choke valve 5 and the second main choke valve 10; If observe liquid CO is arranged in the pipeline through visor 16
2Cold-producing medium flows through, and CO is described
2Refrigerant flow is excessive, should reduce the aperture of the first main choke valve 5 and the second main choke valve 10, thereby reduces CO in the pipeline
2Refrigerant flow makes CO in the device for storing liquid 1
2Cold-producing medium can use the longer time, keeps people's life condition to greatest extent.
Be equipped with unidirectional relief valve 20 and manual safety valve 19 in the confined space 18; When confined space 18 internal pressures are higher than its setting value; Just can keep confined space 18 internal pressures and be within the prescribed limit through unidirectional relief valve 20 and manual safety valve 19 to the external environment exhaust pressure relief.CO
2Be equipped with unidirectional relief valve 23 and manual safety valve 22 in the safe space 21 that device for storing liquid 1 is deposited; 21 internal pressures are higher than its setting value when the safe space; Just can keep safe space 21 internal pressures and be within the prescribed limit through unidirectional relief valve 23 and manual safety valve 22 to the external environment exhaust pressure relief.
Claims (6)
1. CO who is used for confined space
2Humiture is regulated and air cleaning system, comprises CO
2Device for storing liquid (1), throttling arrangement and evaporimeter (15), master switch valve (3) is arranged on said CO
2Between device for storing liquid (1) and the throttling arrangement, said CO
2Device for storing liquid (1), master switch valve (3), throttling arrangement, evaporimeter (15) and visor (16) are connected with tube connector successively, at said CO
2Tube connector between device for storing liquid (1) and the master switch valve (3) is provided with gross pressure table (2) for one section; It is characterized in that: said throttling arrangement is a two-stage throttling intermediate section device of air; Between said two-stage throttling intermediate section device of air and evaporimeter (15), be provided with air cleaning unit (12), said air cleaning unit (12) is connected with the casing that said evaporimeter (15) is housed with said two-stage throttling intermediate section device of air respectively through tube connector.
2. a kind of CO that is used for confined space as claimed in claim 1
2Humiture is regulated and air cleaning system; It is characterized in that: said two-stage throttling intermediate section device of air comprises first internal exchanger (4), second internal exchanger (8), the first main choke valve (5), the second main choke valve (10), gas-liquid separator (6), first auxiliary throttle valve (7) and second auxiliary throttle valve (17); Said first internal exchanger (4), the first main choke valve (5), gas-liquid separator (6), first auxiliary throttle valve (7), second internal exchanger (8) are connected with tube connector with the second main choke valve (10) successively, and said second auxiliary throttle valve (17) two ends are connected with visor (16) with said first internal exchanger (4) respectively through tube connector.
3. a kind of CO that is used for confined space as claimed in claim 2
2Humiture is regulated and air cleaning system; It is characterized in that: on one section of the tube connector between the said second main choke valve (10) and the evaporimeter (15), be provided with partial pressure table (11); The air motor (13) of said first internal exchanger (4), second internal exchanger (8), pressure limiting valve (9) and said air cleaning unit (12) is connected with tube connector successively; The air outlet of the fan (14) of said air cleaning unit (12) is connected through tube connector with the air intake of the casing that said evaporimeter (15) is housed, and said one way valve (24) is connected through tube connector with air motor (13).
4. a kind of CO that is used for confined space as claimed in claim 1
2Humiture is regulated and air cleaning system, and it is characterized in that: said evaporimeter (15) is at least one, and said choke valve comprises manual throttle valve, heating power expansion valve and electric expansion valve, also comprises capillary tube and restriction sleeve.
5. a kind of CO that is used for confined space as claimed in claim 1
2Humiture is regulated and air cleaning system, it is characterized in that: said CO
2Device for storing liquid (1) is arranged in outer another safe space (21) of confined space (18), and in said safe space (21), also comprising increases the CO that insulating sandwich is handled
2Device for storing liquid (1), said CO
2Device for storing liquid (1) is at least one, and said manual safety valve (19) and unidirectional relief valve (20) are installed in the said confined space (18), and said manual safety valve (22) and unidirectional relief valve (23) are installed in said safe space (21).
6. like each described a kind of CO that is used for confined space in the claim 1 to 5
2Humiture is regulated and air cleaning system, it is characterized in that: supply CO
2The said tube connector that flows through is copper pipe or an alloy pipe high pressure resistant, low temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004936.2A CN102678158B (en) | 2012-01-10 | 2012-01-10 | CO2 temperature and humidity adjustment and air purification system for sealed space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210004936.2A CN102678158B (en) | 2012-01-10 | 2012-01-10 | CO2 temperature and humidity adjustment and air purification system for sealed space |
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| Publication Number | Publication Date |
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| CN102678158A true CN102678158A (en) | 2012-09-19 |
| CN102678158B CN102678158B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210004936.2A Active CN102678158B (en) | 2012-01-10 | 2012-01-10 | CO2 temperature and humidity adjustment and air purification system for sealed space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114109475A (en) * | 2021-11-17 | 2022-03-01 | 中煤科工集团沈阳研究院有限公司 | Two-stage compression refrigeration type nitrogen low-temperature cooling system for underground coal mine and control method |
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| CN102678158B (en) | 2014-11-26 |
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