CN117379920A - Collective protection system with air component replacement and update functions - Google Patents
Collective protection system with air component replacement and update functions Download PDFInfo
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- CN117379920A CN117379920A CN202311549335.4A CN202311549335A CN117379920A CN 117379920 A CN117379920 A CN 117379920A CN 202311549335 A CN202311549335 A CN 202311549335A CN 117379920 A CN117379920 A CN 117379920A
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000000926 separation method Methods 0.000 claims abstract description 48
- 239000006096 absorbing agent Substances 0.000 claims abstract description 46
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 43
- 239000001301 oxygen Substances 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 27
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 27
- 230000007123 defense Effects 0.000 claims abstract description 22
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 11
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 5
- 231100000719 pollutant Toxicity 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000003795 desorption Methods 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 description 21
- 239000003053 toxin Substances 0.000 description 15
- 231100000765 toxin Toxicity 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000002574 poison Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 231100001110 gaseous toxicant Toxicity 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1412—Controlling the absorption process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0251—Physical processing only by making use of membranes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
- F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/95—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention provides a collective protection system with an air component replacement and update function, which comprises: filter absorber, O 2 Separation device, collective protection area and CO 2 Absorber, air component control box in defense area and O 2 Flowmeter, O 2 Concentration sensor, CO 2 Flowmeter, CO 2 A concentration sensor; the filter absorber is used for filtering nuclear biochemical pollutants in the air; the O is 2 The separation device is used for providing oxygen to the collective protection area and is used for maintaining the oxygen concentration in the protection area; the collective protection area is a closed isolated protection area. The invention utilizes O 2 Separation device and CO 2 The absorber continuously updates and replaces the concentration of oxygen and carbon dioxide in the isolated collective protection area, so that the nuclear biochemical adsorption and filtering capacity of the filtering absorber can be utilized to the greatest extent, and the concentration of oxygen and carbon dioxide in the collective protection area is maintained in a range required by normal breathing of personnel for a long time.
Description
Technical Field
The invention relates to the field of collective protection systems, in particular to a collective protection system with an air component replacement and update function.
Background
The collective protection system is a protection facility which can isolate or purify the polluted air outside the sealed protection area and send the polluted air into the protection area under the nuclear biochemical condition, so that personnel in the protection area can still complete basic tasks under the condition of not using personal protection equipment. According to the principle of protection, the collective protection system can be divided into an isolated protection system and a filtering protection system. The working principle of the isolation type protection system of the early invention is to seal the protection area so as to isolate the protection area from the surrounding environment. In the closed environment, the concentration of oxygen and carbon dioxide in the protection area is inevitably deteriorated, and normal breathing of the personnel is affected. The filtering type collective protection system mainly comprises airtight and overpressure control equipment and toxin filtering and ventilation equipment, and the working principle is that the air is filtered and adsorbed by the toxin filtering and ventilation equipment and then is fed into the collective protection area, and meanwhile, the air entering and exiting the collective protection area is controlled by the special airtight and overpressure control equipment, so that the purposes of building overpressure and controlling the air environment in the collective protection area are achieved, nuclear biochemical pollutants and various toxic and harmful gases in the external environment are prevented from entering the collective protection area, and good survival and working environments are provided for personnel in the collective protection area, so that the personnel can work and live normally without using personal protection equipment.
The toxin filtering ventilation equipment is core equipment of the filtering collective protection system. However, the existing toxin filtering and ventilating equipment based on the impregnation activated carbon adsorption effect mainly has the problems of limited protection duration, incomplete protection spectrum, short storage validity period and the like, so that the effectiveness, economy and maintainability of the toxin filtering and ventilating equipment in actual use are poor. Particularly for gaseous toxicants, the effective protection time of the toxin filtering ventilation equipment is generally several hours, and the requirement of emergency evacuation of a large number of people caused by sudden attack of chemical toxicants or leakage of chemical substances is difficult to meet.
The current filtering type collective protection system mainly sends the clean air after filtering into the collective protection area by a replacement ventilation method, so as to adjust the concentration of oxygen and carbon dioxide in the protection area (wherein the concentration of oxygen is generally more than 19 percent and the concentration of carbon dioxide is less than 0.5 percent), and meet the normal breathing requirement of personnel. The ventilation is replaced by all gases in the protection area according to the breathing quantity of the personnel, and a larger filtering ventilation quantity is needed, and the specific calculation formula is as follows:
wherein:
b2- -concentration of carbon dioxide in air in collective protection area, recommended value is 0.35%
b1- -the carbon dioxide concentration in the outside air is generally 0.03%
BAV-the amount of breath per person per hour
(value at rest 0.5 m) 3 Per h/person, the value of the working value is 0.75m 3 /h/person)
a- -the concentration of carbon dioxide in the air exhaled by the person generally takes a value of 4%
n- -number of people in collective protection area
FAV- -required external air quantity, m 3 /h
As can be seen from the above calculation, the individual required external air quantity of the collective protection area is generally 6-7 m 3 /h/person takes the value. In the design, the design can be according to 10m 3 And multiplying the h/person by the total number of people in the collective protection area to estimate the total air supply quantity of the toxin filtering ventilation device required by the collective protection area. Thus, taking a protection area which can accommodate 100 persons at maximum as an example, the rated ventilation volume of the toxin filtering ventilation device is 1000m 3 However, the effective toxin filtering time of the toxin filtering ventilation equipment with rated ventilation quantity is only a plurality of hours, and the long-time protection requirement is difficult to meet.
The invention aims to prolong the effective protection time of the traditional toxin filtering ventilation equipment by continuously replacing and updating oxygen and carbon dioxide gas components in a collective protection area. The main principle is as shown in figure 1, and the clean air after the toxin filtering, ventilation and filtration is connected to O 2 The separation device is used for continuously conveying the separated oxygen into the protection area and simultaneously utilizing CO 2 And the absorber continuously pumps the carbon dioxide in the protection area, so that the concentration of the oxygen and the carbon dioxide in the protection area is maintained, and the oxygen and the carbon dioxide are kept in a range required by normal breathing of a human body. Through the related calculation, the oxygen content required by the normal breathing of the human body is about 0.015 to 0.02m 3 Per hour, the oxygen consumption of the collective protection area of 100 people is 2m 3 And/h, calculated by the oxygen content of 20% of the air, the actual required air quantity is 10m 3 And/h. Original 1000m 3 A poison filtering ventilation device of/h filtering ventilation volume, which can filter air volume of 2000m, assuming that its poison breakdown time is 2 hours 3 Thus, 10m is required per hour in accordance with the principle of transport after separation in combination with oxygen 3 The actual working time of the toxin filtering ventilation device is 200 hours, which is improved by 100 times compared with the use in the filtering ventilation system. Taking into account O 2 The actual separation efficiency of the separation device and the actual working time length thereof are discounted, but the long-time protection requirement can be completely met.
Disclosure of Invention
The invention aims to provide a collective protection system with an air component replacement and update function, which is realized by O 2 Separation device and CO 2 Absorber for holding oxygen and carbon dioxide in collective protection areaAnd (5) updating continuously, so that the protection duration of the collective protection area is prolonged under the rated toxin filtering and ventilation capability.
The technical scheme of the invention is as follows: a collective protection system with air component replacement and update functions is provided, which comprises a filtering absorber and O 2 Separation device, collective protection area and CO 2 Absorber, air component control box in defense area and O 2 Flowmeter, O 2 Concentration sensor, CO 2 Flowmeter, CO 2 A concentration sensor;
the filter absorber is connected to the O 2 The separation device provides clean air for filtering nuclear biochemical pollutants for next-stage equipment; the O is 2 The air inlet of the separation device is connected with a filtering absorber, and O is formed after the gas components are separated 2 The outlet is connected with the collective protection zone so as to continuously provide oxygen for the protection zone; the collective protection areas are respectively connected with O 2 Separation device and CO 2 Absorber, through the O 2 Separation device and CO 2 The absorber operates to provide oxygen and to pump out excess carbon dioxide from the containment zone;
the air component control boxes of the defense area are respectively connected with O 2 Flowmeter, O 2 Concentration sensor, CO 2 Flowmeter, CO 2 Concentration sensor, control O by correlation logic operation 2 Separation device and CO 2 The absorber ensures that the concentration of oxygen and carbon dioxide in the collective protection area is always maintained in a range required by normal breathing of personnel;
the O is 2 The flowmeter is connected with O 2 Between the separating device and the collective protection area for measuring O 2 The separation device supplies oxygen to the protection area, and simultaneously supplies oxygen information to the air component control box of the defense area to be used as operation input of the control box;
the CO 2 The flowmeter is connected with CO 2 CO of absorber 2 At the outlet for measuring CO 2 CO pumped from collective guard by absorber 2 Flow rate, simultaneously CO 2 The pumping quantity information is provided for an air component control box of the defense area and is used as the operation input of the control box。
Further, the O 2 O based on molecular sieve adsorption and desorption principle is adopted in the separation device 2 Separation apparatus, or O based on membrane separation technology 2 A separation device.
Further, the CO 2 Absorber, CO based on solution absorption, solid adsorption or membrane separation technology 2 An absorption device.
Further, at least one or more O is/are arranged 2 Concentration sensors uniformly arranged at each space part in the collective protection area for measuring O in the collective protection area in real time 2 Concentration; simultaneously measured O in collective protection area 2 The concentration is conveyed to an air component control box of the defense area and used as the operation input of the control box.
Further, at least one CO is arranged 2 The concentration sensors are uniformly arranged at each space part in the collective protection area and are used for measuring CO in the collective protection area in real time 2 Concentration; CO in collective protection area measured simultaneously 2 The concentration is conveyed to an air component control box of the defense area and used as the operation input of the control box.
The collective protection system with the air component replacement and updating functions has the beneficial effects that:
compared with the prior art, the invention utilizes O 2 Separation device and CO 2 The absorber continuously updates and replaces the concentration of oxygen and carbon dioxide in the isolated protection area, so that the nuclear biochemical adsorption and filtering capacity of the filtering absorber can be utilized to the greatest extent, and the concentration of oxygen and carbon dioxide in the collective protection area is maintained in a range required by normal breathing of personnel for a long time. The system has the following advantages: 1) Only the filtered clean air selectively absorbs oxygen to the protection area, and the quantity of the transported oxygen and the respiratory quantity of personnel are kept balanced, so that the ventilation quantity of a filtering absorber in the toxin filtering ventilation equipment is greatly reduced, and the protection time of the protection area can be greatly prolonged under the rated filtering adsorption capacity; 2) The dynamic balance of the indoor oxygen and the carbon dioxide can be realized, and a good personnel living environment is maintained; 3) Only absorption is needed in the collective protection areaThe oxygen in the air conditioner is subjected to heat exchange treatment, so that the energy consumption of the air conditioning system in the collective protection area for treating a large amount of fresh air can be greatly reduced. Besides the collective protection system, the novel system is expected to be applied to the indoor environment control of the building, thereby replacing a fresh air system, improving the indoor environment of the building and reducing the energy consumption of the building.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a system schematic diagram of a collective protection system with air component replacement renewal function of the present invention;
FIG. 2 is a schematic diagram of the practical application of the system of the present invention;
in the figure: 1. filter absorber, 2, O 2 Separating device, 3, air component control box of collecting and defending area, 4, O 2 Flowmeter, 5, collective protection area, 6, CO 2 Absorber, 7, CO 2 Flowmeter, 8, O 2 Concentration sensor, 9, CO 2 A concentration sensor.
Detailed Description
The collective protection system with air component replacement and update function according to the present invention will be described in further detail with reference to the accompanying drawings and the specific examples. Advantages and features of the invention will become more apparent from the following description and from the claims. It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the invention.
As shown in fig. 2, the present invention provides a collective protection system having an air component replacement update function, comprising:
1. filter absorber, 2, O 2 Separating device, 3, air component control box of collecting and defending area, 4, O 2 Flowmeter, 5, collective protection area, 6, CO 2 Absorber, 7, CO 2 Flowmeter, 8, O 2 Concentration sensor, 9, CO 2 A concentration sensor.
The filter absorber 1 is connected to O 2 Separation device 2, O 2 The air inlet of the separation device 2 provides clean air that filters out nuclear and biochemical contaminants.
Said O 2 The air inlet of the separation device 2 is connected with the filtering absorber 1, and O is formed after the gas components are separated 2 The outlet is connected to the collective protection 5 so as to continuously supply oxygen to the protection.
The collective protection area 5 is a closed protection area, and outside air cannot permeate into the protection area; at the same time respectively connect to O 2 Separation device 2 and CO 2 The absorber 6 is operated by the above 2 devices to supply oxygen to the closed guard area and to pump out excess carbon dioxide.
The air component control boxes 3 of the defense area are respectively connected to O 2 Flowmeter 4, O 2 Concentration sensor 8, CO 2 Flowmeter 7, CO 2 The concentration sensor 9 controls O by a related logical operation 2 Separation device 2 and CO 2 The absorber 6 ensures that the oxygen and carbon dioxide concentration in the collective protection area 5 is always maintained within the range required for normal breathing by the person.
Said O 2 The flowmeter 4 is connected to O 2 Between the separating device 2 and the collective protection area 5 for measuring O 2 The separation device 2 supplies oxygen to the protection area; and simultaneously, the oxygen supply information is provided for the air component control box 3 of the defense area and is used as the operation input of the control box.
Said CO 2 A flow meter 7 connected to the CO 2 CO of absorber 6 2 At the outlet for measuring CO 2 The absorber 6 sucks CO from the collective protection area 5 2 A flow rate; at the same time CO 2 The suction quantity information is provided to the air component control box 3 of the defense area as the operation input of the control box.
Preferably, said O 2 The separation device 2 can adopt O based on the principle of molecular sieve adsorption and desorption 2 Separation apparatus, O based on membrane separation technique can also be used 2 A separation device.
Preferably, said CO 2 The absorber 6 can adopt CO based on solution absorption method, solid adsorption method or membrane separation technology 2 An absorption device.
Preferably at least compriseMore than one O 2 The concentration sensors 8 are uniformly arranged at all space parts in the collective protection area 5 and are used for measuring O in the collective protection area in real time 2 Concentration; simultaneously measured O in collective protection area 2 The concentration is sent to an air component control box 3 in the defense area and used as the operation input of the control box.
Preferably, at least comprises more than one CO 2 Concentration sensors 9 are uniformly arranged at each space part in the collective protection area 5 for measuring CO in the collective protection area in real time 2 Concentration; at the same time, the measured CO in the collective protection area 5 2 The concentration is sent to an air component control box 3 in the defense area and used as the operation input of the control box.
Specifically, as shown in fig. 2: when the collective protection area is attacked by outside nuclear biochemistry, the collective protection area 5 closes the corresponding external door cover and the like, so that the protection area is in a closed and isolated state. At the same time, the air component control box 3 in the defense area starts O 2 Separation device 2, CO 2 Absorber 6, etc. O (O) 2 The separation device 2 extracts clean air from the filter absorber 1 after filtering out nuclear and biochemical pollutants, and then separates oxygen in the clean air and conveys the separated oxygen into the collective protection area 5. At the same time, CO 2 The absorber 6 continuously sucks in the CO sucked out by the personnel from the collective protection area 5 2 . O arranged within collective protection 5 2 Concentration sensor 8 and CO 2 The concentration sensor 9 always monitors the concentration of oxygen and carbon dioxide in the protection area, and sends concentration information to the air composition control box 3 in the collection and defense area, and the control box judges whether the concentration of oxygen and the concentration of carbon dioxide in the collection and defense area 5 are too high or too low. Bond O 2 Flowmeter and CO 2 Information of flowmeter, air component control box 3 of defense area is to O 2 Separation device 2, CO 2 The operating load of absorber 6 is controlled to ensure that the oxygen and carbon dioxide concentrations in collective protection zone 5 remain within reasonable limits throughout.
In summary, the present invention utilizes O 2 Separation device and CO 2 The absorber continuously updates and replaces the concentration of oxygen and carbon dioxide in the isolated collective protection area, thereby ensuring the utilization to the greatest extentThe concentration of oxygen and carbon dioxide in the collective protection area is maintained in the range required by normal breathing of personnel for a long time by using the nuclear biochemical adsorption and filtering capability of the filtering absorber.
What is not described in detail in this specification is prior art known to those skilled in the art. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. A collective protection system with air component replacement and update functions is characterized by comprising a filtering absorber and O 2 Separation device, collective protection area and CO 2 Absorber, air component control box in defense area and O 2 Flowmeter, O 2 Concentration sensor, CO 2 Flowmeter, CO 2 A concentration sensor;
the filter absorber is connected to the O 2 The separation device provides clean air for filtering nuclear biochemical pollutants for next-stage equipment; the O is 2 The air inlet of the separation device is connected with a filtering absorber, and O is formed after the gas components are separated 2 The outlet is connected with the collective protection zone so as to continuously provide oxygen for the protection zone; the collective protection areas are respectively connected with O 2 Separation device and CO 2 Absorber, through the O 2 Separation device and CO 2 The absorber operates to provide oxygen and to pump out excess carbon dioxide from the containment zone;
the air component control boxes of the defense area are respectively connected with O 2 Flowmeter, O 2 Concentration sensor, CO 2 Flowmeter, CO 2 Concentration sensor, control O by correlation logic operation 2 Separation device and CO 2 Absorption ofThe device ensures that the concentration of oxygen and carbon dioxide in the collective protection area is always maintained in a range required by normal breathing of personnel;
the O is 2 The flowmeter is connected with O 2 Between the separating device and the collective protection area for measuring O 2 The separation device supplies oxygen to the protection area, and simultaneously supplies oxygen information to the air component control box of the defense area to be used as operation input of the control box;
the CO 2 The flowmeter is connected with CO 2 CO of absorber 2 At the outlet for measuring CO 2 CO pumped from collective guard by absorber 2 Flow rate, simultaneously CO 2 The suction quantity information is provided for an air component control box of the defense area and is used as operation input of the control box.
2. The collective protection system with air component replacement renewal function according to claim 1, wherein said O 2 O based on molecular sieve adsorption and desorption principle is adopted in the separation device 2 Separation apparatus, or O based on membrane separation technology 2 A separation device.
3. The collective protection system with air component replacement renewal function according to claim 1, wherein said CO 2 Absorber, CO based on solution absorption, solid adsorption or membrane separation technology 2 An absorption device.
4. The collective protection system with air component replacement and renewal function according to claim 1, wherein at least more than one O is provided 2 Concentration sensors uniformly arranged at each space part in the collective protection area for measuring O in the collective protection area in real time 2 Concentration; simultaneously measured O in collective protection area 2 The concentration is conveyed to an air component control box of the defense area and used as the operation input of the control box.
5. The collective air component replacement and renewal function according to claim 1A protection system is characterized in that at least one CO is arranged 2 The concentration sensors are uniformly arranged at each space part in the collective protection area and are used for measuring CO in the collective protection area in real time 2 Concentration; CO in collective protection area measured simultaneously 2 The concentration is conveyed to an air component control box of the defense area and used as the operation input of the control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311549335.4A CN117379920A (en) | 2023-11-20 | 2023-11-20 | Collective protection system with air component replacement and update functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311549335.4A CN117379920A (en) | 2023-11-20 | 2023-11-20 | Collective protection system with air component replacement and update functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117379920A true CN117379920A (en) | 2024-01-12 |
Family
ID=89439301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311549335.4A Pending CN117379920A (en) | 2023-11-20 | 2023-11-20 | Collective protection system with air component replacement and update functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117379920A (en) |
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2023
- 2023-11-20 CN CN202311549335.4A patent/CN117379920A/en active Pending
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