Fire smoke circulation filter and oxygen supply device

Abstract

The application discloses a fire smoke circulation filtering and continuous oxygen supply device, which comprises, from bottom to top, a smoke collecting module, a smoke complete combustion module, an air preheating module, a decontamination and cooling module, a drying module, an oxygen generation module, a catalytic oxidation module communicated with the drying module, and an oxygen supply module connected with the catalytic oxidation module. The application can guarantee complete combustion of fire smoke, effectively cool and filter the fire smoke, and ensure that the oxygen content in the finally output purified air or / and oxygen is sufficient for fire trapped personnel to breathe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire fighting technology, in particular to a fire smoke circulation filtering and continuous oxygen supply device. BACKGROUND

[0002] Fire is one of the most frequent and common important disasters, and high-temperature toxic smoke is one of the important factors to force casualties. With the rapid development of transportation and civil engineering, the types of buildings are becoming more and more complex, and buildings such as super high / high-rise buildings, super long tunnels, and underground projects are emerging, and the fire risk is also increasing sharply. The current fire rescue force has been difficult to cope with the existing complex fire, and how to protect the life safety and living conditions of trapped personnel during the waiting for rescue has become a key problem to be solved.

[0003] At present, although a large number of scholars have carried out research on smoke purification at fire scenes, there are still the following problems: first, the related technology cannot remove toxic and harmful gases in fire smoke, and cannot solve the breathing protection problem of trapped personnel during waiting for rescue and escape. Second, the related technology does not consider whether the oxygen content in the purified gas meets the requirements, and it is difficult to guarantee that the purified gas can be breathed by trapped personnel; third, the related technology needs to use air supplemented from the outside of the fire smoke gathering place to complete the secondary combustion with the fire smoke, which is difficult to guarantee that the oxygen in the supplemented air is sufficient to complete the combustion reaction. SUMMARY

[0004] The present application aims to at least solve one of the problems in the prior art. To this end, one object of the present application is to provide a fire smoke circulation filtering and continuous oxygen supply device, which can guarantee that the fire smoke is completely combusted, effectively filters and detoxifies the fire smoke, and ensures that the oxygen content in the purified air or / and oxygen output is sufficient for the trapped personnel to breathe.

[0005] The fire smoke circulation filtering and continuous oxygen supply device according to the embodiment of the present application comprises, from bottom to top, a smoke collecting module, a smoke complete combustion module, an air preheating module, a decontamination and cooling module, a drying module, an oxygen generation module, a catalytic oxidation module in communication with the drying module, and an oxygen supply module connected with the catalytic oxidation module;

[0006] The smoke collecting module is used to converge fire smoke and make the fire smoke vertically upwardly migrate.

[0007] The smoke complete combustion module is used to receive fire smoke from the smoke collecting module and preheated air or / and oxygen from the air preheating module, so as to make the fire smoke completely combust.

[0008] The air preheating module is used for receiving high-temperature flue gas after complete combustion from the flue gas complete combustion module and purified air or / and oxygen delivered from the catalytic oxidation module, exchanging heat between the high-temperature flue gas and the purified air or / and oxygen, and making preheated air or / and oxygen enter the flue gas complete combustion module while outputting the cooled flue gas to the decontamination and cooling module;

[0009] The oxygen generation module is used for generating oxygen and delivering the generated oxygen to the decontamination and cooling module;

[0010] The decontamination and cooling module is used for water-washing and cooling the flue gas cooled from the air preheating module or / and the oxygen delivered from the oxygen generation module, removing toxic and harmful substances in the flue gas or / and the oxygen during the water-washing and cooling process, obtaining decontaminated gas, and making the decontaminated gas enter the drying module;

[0011] The drying module is used for drying the decontaminated gas and obtaining dried gas;

[0012] The catalytic oxidation module is used for catalytically oxidizing the dried gas from the drying module, removing residual CO in the dried gas, obtaining purified air or / and oxygen, and making part of the purified air or / and oxygen enter the oxygen delivery module and another part of the purified air or / and oxygen enter the air preheating module;

[0013] The oxygen delivery module is used for delivering part of the purified air or / and oxygen to an external environment.

[0014] The working process of the fire smoke circulation filter and continuous oxygen supply device is as follows: when a fire occurs, the smoke collecting module collects the fire smoke in itself and makes the fire smoke move vertically upward into the smoke complete combustion module located above the smoke collecting module, the combustible gas in the fire smoke is subjected to secondary complete combustion with the air or / and oxygen preheated from the air preheating module in the complete combustion module, and high-temperature smoke is obtained; the high-temperature smoke moves vertically upward into the air preheating module located above the smoke complete combustion module, continues to move vertically upward in the air preheating module and exchanges heat with the purified air or / and oxygen from the catalytic oxidation module, the high-temperature smoke is preliminarily cooled and then enters the decontamination and cooling module, and the purified air or / and oxygen is heated and then preheated and enters the smoke complete combustion module. The decontamination and cooling module cools the smoke and removes the toxic and harmful gas in the smoke, and obtains the decontaminated and cooled gas; the decontaminated and cooled gas moves vertically upward into the drying module, and the moisture is removed in the drying module, and the dried gas is obtained; the dried gas moves into the catalytic oxidation module, the catalytic oxidation module removes the residual CO in the dried gas to obtain the purified air, part of the purified air is discharged to the external environment through the oxygen supply module, and the other part of the purified air enters the air preheating module; when the oxygen content in the purified air from the catalytic oxidation module detected by the oxygen generator module does not meet the breathing requirement of the trapped personnel, the oxygen generator module produces oxygen which is cooled in the decontamination and cooling module to obtain the decontaminated and cooled gas, the decontaminated and cooled gas is dried and then enters the catalytic oxidation module to obtain the purified oxygen, until the oxygen content in the purified air or / and oxygen from the catalytic oxidation module meets the breathing requirement of the trapped personnel, continuous oxygen supply to the trapped personnel is realized, the breathing guarantee for the trapped personnel during the waiting for rescue is provided, and at the same time, the residual heat air or / and oxygen with high oxygen content can be provided to the smoke complete combustion module to ensure the secondary complete combustion of the fire smoke.

[0015] In summary, the fire smoke circulation filter and continuous oxygen supply device has the following advantages: the secondary complete combustion of the fire smoke can be ensured, the fire smoke can be rapidly and effectively cooled and filtered, and the oxygen content in the purified air or / and oxygen finally output is sufficient for the trapped personnel to breathe, and the breathing guarantee problem of the trapped personnel during the waiting for rescue and escape is solved. In addition, the fire smoke circulation filter and continuous oxygen supply device reduces the mechanical traction force of gas migration and saves cost.

[0016] In some embodiments, the smoke collecting module defines a vertical channel, and a radial dimension of the vertical channel gradually decreases from bottom to top.

[0017] In some embodiments, the air preheating module comprises a plurality of first channels and a second channel outside the plurality of first channels; one end of the plurality of first channels extends to the top of the flue gas complete combustion module and communicates with the internal combustion space of the flue gas complete combustion module, and the other end of the plurality of first channels extends to the top of the air preheating module and is connected to the decontamination and cooling module, so that the high-temperature flue gas after complete combustion in the flue gas complete combustion module enters the decontamination and cooling module through the plurality of first channels; the inlet end of the second channel is connected to the catalytic oxidation module, and the outlet end of the second channel is connected to the flue gas complete combustion module through a third channel, so that the other part of the purified air or / and oxygen of the catalytic oxidation module enters the combustion space of the flue gas complete combustion module in sequence through the second channel and the third channel; wherein the high-temperature flue gas in the first channel and the purified air or / and oxygen in the second channel exchange heat with each other.

[0018] In some embodiments, the decontamination and cooling module comprises a box, a water liquid, activated carbon and a plurality of U-shaped tubes; the box contains the water liquid and the activated carbon, and the activated carbon is arranged in a honeycomb shape in the water liquid; the plurality of U-shaped tubes are arranged in a reverse manner, one end of the plurality of U-shaped tubes communicates with the other end of the plurality of first channels one by one, the other end of the plurality of U-shaped tubes extends downward to the vicinity of the bottom of the box, and the bending part of the plurality of U-shaped tubes extends out of the water liquid level.

[0019] In some embodiments, the other end of the plurality of U-shaped tubes has a flared mouth.

[0020] In some embodiments, the plurality of U-shaped tubes are provided with an anti-backflow structure above the water liquid level to prevent backflow of the water liquid.

[0021] In some embodiments, the oxygen generation module comprises an oxygen content detector, a gas conveying pipe, a potassium superoxide plate, a suction assembly and a water mist sprayer;

[0022] The oxygen content detector is arranged at the catalytic oxidation module to monitor the oxygen content in the dried gas.

[0023] The gas conveying pipe is vertically arranged, and comprises a sealed containing space above the drying module and a gas conveying channel connected to the sealed containing space and extending downward to the vicinity of the bottom of the box;

[0024] The potassium superoxide plate is arranged in the sealed containing space.

[0025] The suction assembly is used to extract the water liquid and the decontaminated gas above the water liquid level to mix and form a gas-water mixture.

[0026] The water mist nozzle is connected to the suction assembly and is used to spray the gas-water mixture onto the potassium superoxide board, so that the potassium superoxide reacts with water and carbon dioxide to generate oxygen. The generated oxygen reaches the vicinity of the bottom of the box through the gas delivery channel.

[0027] In some embodiments, the suction assembly includes a suction pump, an air extractor, and a water extractor; the suction pump is connected to the water mist nozzle, the upper end of the air extractor, and the upper end of the water extractor; the lower end of the air extractor is located between the liquid surface of the water and the drying module; the lower end of the water extractor extends into the liquid inside the housing.

[0028] In some embodiments, the catalytic oxidation module includes a catalyst arranged in a honeycomb pattern.

[0029] In some embodiments, the fire smoke circulation filtration and continuous oxygen supply device is generally in the shape of an inverted L or an inverted J.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is a schematic diagram of the overall structure of the fire smoke circulation filtration and continuous oxygen supply device according to an embodiment of the present invention.

[0033] Figure 2 yes Figure 1 A schematic diagram of the U-shaped tube.

[0034] Figure reference numerals: 1000 fire smoke circulation filtration and continuous oxygen supply device; 100 smoke collection module; 200 complete smoke combustion module; 201 igniter; 202 first valve; 300 air preheating module; 301 first channel; 302 second channel; 303 third channel; 304 second valve; 305 third valve; 400 decontamination and cooling module; 401 housing; 402 liquid water; 403 activated carbon; 404 U-shaped pipe; 404 bell mouth. 1; Anti-backflow structure 4042; Drying module 500; Desiccant 501; Oxygen generation module 600; Oxygen content detector 601; Gas delivery pipe 602; Potassium superoxide board 603; Suction assembly 604; Suction pump 6041; Air extractor 6042; Water pump 6043; Water mist nozzle 605; Catalytic oxidation module 700; Catalyst 701; First catalytic oxidation module 702; Second catalytic oxidation module 703; Oxygen delivery module 800. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The following is combined Figures 1 to 2 This invention describes a fire smoke circulation filtration and continuous oxygen supply device 1000 according to an embodiment of the present invention.

[0037] like Figure 1 As shown, the fire smoke circulation and filtration continuous oxygen supply device 1000 according to an embodiment of the present invention includes, from bottom to top, a smoke collection module 100, a smoke complete combustion module 200, an air preheating module 300, a decontamination and cooling module 400, a drying module 500, an oxygen generation module 600, a catalytic oxidation module 700 connected to the drying module 500, and an oxygen delivery module 800 connected to the catalytic oxidation module 700. In other words, the fire smoke circulation and filtration continuous oxygen supply device 1000 is generally similar to a vertical chimney. Under the chimney effect, the fire smoke, heated and buoyant, moves vertically upwards within the fire smoke circulation and filtration continuous oxygen supply device 1000, reducing mechanical traction and saving costs.

[0038] The smoke collection module 100 is used to collect fire smoke and move it vertically upwards. In other words, the smoke collection module 100 can collect fire smoke from the surrounding space, completing the collection of fire smoke. The fire smoke, under the influence of thermal buoyancy, moves vertically upwards within the smoke collection module 100, reducing mechanical traction and saving costs.

[0039] The flue gas complete combustion module 200 is used to receive fire smoke from the smoke collection module 100 and preheated air and / or oxygen from the air preheating module 300 to ensure complete combustion of the fire smoke. In other words, since the fire smoke contains a large amount of unburned combustible gas, by placing the flue gas complete combustion module 200 above the smoke collection module 100, the fire smoke can be vertically moved upwards into the complete combustion module 200 under the action of thermal buoyancy, allowing the large amount of unburned combustible gas in the fire smoke to undergo secondary complete combustion with the preheated air / oxygen, thus initially removing the combustible gas from the fire smoke. It should be noted that the preheated air and / or oxygen entering the flue gas complete combustion module 200 comes from the air and oxygen finally purified by the fire flue gas circulation filtration and continuous oxygen supply device 1000 of this embodiment of the invention. The oxygen content requirement can be guaranteed. Compared with the prior art of using external air supplemented from the fire flue gas accumulation point to perform secondary combustion with the fire flue gas, this allows the fire flue gas entering the flue gas complete combustion module 200 to be completely burned, and can remove combustible gases from the fire flue gas better, faster and more effectively.

[0040] The air preheating module 300 receives the high-temperature flue gas from the complete combustion module 200 and the purified air and / or oxygen from the catalytic oxidation module 700, allowing heat exchange between the high-temperature flue gas and the purified air and / or oxygen. The preheated air and / or oxygen then enter the complete combustion module 200, while the cooled flue gas is output to the decontamination and cooling module 400. In other words, the high-temperature flue gas and the purified air and / or oxygen exchange heat in the air preheating module 300, utilizing the heat from the high-temperature flue gas and saving external energy. The increased temperature of the preheated air and / or oxygen enables the fire flue gas in the complete combustion module 200 to burn more quickly and efficiently.

[0041] The oxygen generation module 600 generates oxygen and delivers it to the decontamination and cooling module 400. When the oxygen content in the purified air and / or oxygen obtained from the catalytic oxidation module 700 is insufficient to ensure breathing for trapped individuals, the oxygen generation module 600 generates oxygen and delivers it to the decontamination and cooling module 400. Because the generated oxygen is at a high temperature, it is cooled by the decontamination and cooling module 400. The oxygen generation module 600 ensures that the oxygen content of the purified air and / or oxygen continuously discharged to the external environment by the fire smoke circulation and filtration continuous oxygen supply device 1000 meets the requirements for human respiration, ensuring the safety of trapped personnel. Simultaneously, it ensures that the fire smoke circulation and filtration continuous oxygen supply device 1000 continuously provides purified air and / or oxygen with a high oxygen content to the smoke complete combustion module 200, enabling better, faster, and more efficient complete combustion of the combustible gases in the fire smoke.

[0042] The decontamination and cooling module 400 is used to decontaminate and cool the flue gas cooled from the air preheating module 300 and / or the oxygen supplied from the oxygen generation module 600. During the decontamination and cooling process, toxic and harmful substances in the flue gas and / or oxygen are removed, resulting in decontaminated gas, which then enters the drying module 500. The decontamination and cooling module 400 is positioned above the flue gas complete combustion module 200, allowing the high-temperature flue gas in the complete combustion module 200 to move vertically upwards into the decontamination and cooling module 400 under thermal buoyancy. The decontamination and cooling module 400 is used to decontaminate and cool the flue gas cooled by the air preheating module 300 and / or the oxygen supplied by the oxygen generation module 600. It decontaminates and removes toxic and harmful substances such as solid particles, carbides, nitrides, sulfides, cyanides, and hydrogen halides from the flue gas and / or the oxygen supplied by the oxygen generation module 600 in one go, obtaining decontaminated and cooled gas. The decontamination and cooling module 400 has good cooling and detoxification effect and high efficiency.

[0043] The drying module 500 is used to dry the decontamination gas to obtain dried gas. That is, the drying module 500 receives the decontamination gas from the decontamination and cooling module 400, removes the moisture from the decontamination gas, and fully dries the decontamination and cooling gas to obtain dried gas.

[0044] The catalytic oxidation module 700 is used to catalytically oxidize the dried gas from the drying module 500 to remove residual CO from the dried gas, obtain purified air and / or oxygen, and send a portion of the purified air and / or oxygen into the oxygen delivery module 800 to ensure the safety of trapped personnel, and send another portion of the purified air and / or oxygen into the air preheating module 300.

[0045] Specifically, such as Figure 1As shown, the catalytic oxidation module 700 includes a first catalytic oxidation module 702 and a second catalytic oxidation module 703. The first catalytic oxidation module 702 is located on one side of the drying module 500 and the oxygen generation module 600. The inlet end of the first catalytic oxidation module 702 is connected to the outlet end of the drying module 500, and the outlet end of the first catalytic oxidation module 702 is connected to the oxygen delivery module 800. Thus, a portion of the dried gas from the drying module 500 enters the first catalytic oxidation module 702 for catalytic oxidation to fully remove residual CO from the dried gas, obtaining purified air and / or oxygen, which then enters the oxygen delivery module 800. The second catalytic oxidation module 703 is located on one side of the decontamination and cooling module 400. The inlet end of the second catalytic oxidation module 703 is connected to the outlet end of the drying module 500. The outlet end of the second catalytic oxidation module 703 is located on one side of the air preheating module 300. In this way, another part of the dried gas from the drying module 500 enters the second catalytic oxidation module 703 to carry out a catalytic oxidation reaction, so as to fully remove the residual CO from the other part of the dried gas, obtain another part of purified air and / or oxygen, and allow the other part of purified air and / or oxygen to enter the air preheating module 300.

[0046] The oxygen delivery module 800 is used to deliver a portion of purified air and / or oxygen to the external environment, providing respiratory support to trapped personnel while they await rescue.

[0047] The working process of the fire smoke circulation filtration and continuous oxygen supply device 1000 in this embodiment of the invention is as follows: When a fire occurs, the smoke collection module 100 collects the fire smoke within itself and moves the fire smoke vertically upward into the smoke complete combustion module 200 located above the smoke collection module 100. The combustible gas in the fire smoke undergoes secondary complete combustion with the air and / or oxygen preheated from the air preheating module 300 in the complete combustion module 200 to obtain high-temperature smoke. The high-temperature smoke moves vertically upward into the air preheating module 300 located above the smoke complete combustion module 200. In the air preheating module 300, it continues to move vertically upward and exchanges heat with the purified air and / or oxygen from the catalytic oxidation module 700. After the high-temperature smoke is initially cooled, it enters the decontamination and cooling module 400. After the purified air and / or oxygen exchange heat and are preheated, it enters the smoke complete combustion module 200. The decontamination and cooling module 400 cools the flue gas and removes toxic and harmful gases, resulting in decontaminated gas. This decontaminated gas moves vertically upwards to the drying module 500, where moisture is removed, yielding dried gas. The dried gas then moves to the catalytic oxidation module 700, where residual CO is removed to obtain purified air. A portion of this purified air is discharged to the external environment via the oxygen supply module 800, while the remaining purified air enters the air preheating module 300. When the oxygen generation module 600 detects the purified air from the catalytic oxidation module 700… When the oxygen content in the gas is insufficient for the trapped personnel to breathe, the oxygen generation module 600 produces oxygen which enters the decontamination and cooling module 400 for cooling, resulting in decontamination gas. The decontamination gas is then dried and enters the catalytic oxidation module 700 to obtain purified oxygen. This process continues until the oxygen content of the purified air and / or oxygen in the catalytic oxidation module 700 meets the breathing requirements of the trapped personnel, thus achieving a continuous oxygen supply to them and providing respiratory support to sustain their lives while awaiting rescue. At the same time, it can provide high-oxygen-content waste heat air and / or oxygen to the flue gas complete combustion module 200 to ensure secondary complete combustion of the fire smoke.

[0048] In summary, the fire smoke circulation and filtration continuous oxygen supply device 1000 of this invention has the following advantages: it ensures complete secondary combustion of fire smoke, quickly and effectively cools and filters the fire smoke, and guarantees that the oxygen content in the final purified air and / or oxygen output is sufficient for the breathing of people trapped in a fire, thus solving the breathing problem for trapped personnel while waiting for rescue and escaping. Furthermore, the fire smoke circulation and filtration continuous oxygen supply device 1000 of this invention reduces the mechanical traction force of gas movement, saving costs.

[0049] In some embodiments, the smoke collection module 100 defines a vertical channel with a radial dimension that gradually decreases from bottom to top, enabling the smoke collection module 100 to efficiently collect fire smoke and allow the fire smoke to move vertically upward under the action of thermal buoyancy.

[0050] In some embodiments, the flue gas complete combustion module 200 defines a combustion space, the lower end of which is connected to the top of the vertical channel, so that the fire flue gas can be vertically transported into the combustion space. An igniter 201 is provided in the combustion space, and the igniter 201 ignites the fire flue gas and the mixture of air and / or oxygen preheated from the air preheating module 300, so that the combustible gas in the fire flue gas is fully combusted in the combustion space.

[0051] In some embodiments, the air preheating module 300 includes a plurality of first channels 301 and a second channel 302 located outside the plurality of first channels 301; the plurality of first channels 301 are vertically arranged, one end (lower end) of the plurality of first channels 301 extends to the top of the flue gas complete combustion module 200 and communicates with the internal combustion space of the flue gas complete combustion module 200, and the other end (upper end) of the plurality of first channels 301 extends to the top of the air preheating module 300 and is connected to the decontamination and cooling module 400, so that the high-temperature flue gas after complete combustion in the flue gas complete combustion module 200 is transported vertically upward under the action of thermal buoyancy after passing through the plurality of first channels 301. The decontamination and cooling module 400; the inlet end of the second channel 302 is connected to the catalytic oxidation module 700, and the outlet end of the second channel 302 is connected to the flue gas complete combustion module 200 through the third channel 303, so that another part of the purified air and / or oxygen from the catalytic oxidation module 700 enters the combustion space of the flue gas complete combustion module 200 sequentially through the second channel 302 and the third channel 303; wherein, the high-temperature flue gas in the first channel 301 exchanges heat with the purified air and / or oxygen in the second channel 302, and after the temperature of the high-temperature flue gas is initially reduced, it enters the decontamination and cooling module 400, and after the purified air and / or oxygen is heated, it enters the combustion space.

[0052] In some embodiments, a first valve 202 is provided at the connection between the flue gas complete combustion module 200 and the third channel 303, a second valve 304 is provided at the connection between the outlet end of the second channel 302 and the third channel 303, and a third valve 305 is provided at the connection between the inlet end of the second channel 302 and the catalytic oxidation module 700.

[0053] In some embodiments, the disinfection and cooling module 400 includes a housing 401, a liquid water 402, activated carbon 403, and a plurality of U-shaped tubes 404. The housing 401 contains the liquid water 402 and the activated carbon 403, which are arranged in a honeycomb pattern in the liquid water 402. The plurality of U-shaped tubes 404 are arranged upside down, with one end of each U-shaped tube 404 corresponding to the other end of a plurality of first channels 301. The other ends of the plurality of U-shaped tubes 404 extend downward to near the bottom of the housing 401, and the bends of the plurality of U-shaped tubes 404 extend out of the surface of the liquid water 402. After the flue gas is cooled by the air preheating module 300, it enters the water liquid 402 after reaching the bottom of the box 401 of the decontamination and cooling module 400 through the U-shaped pipe 404. The water liquid 402 can clean the solid particles in the flue gas and further reduce the flue gas temperature significantly. The activated carbon 403 is arranged in a honeycomb pattern in the water liquid 402, which can fully absorb toxic and harmful substances such as nitrogen oxides, sulfides, cyanides, and hydrogen halides in the flue gas. The detoxified and cooled decontamination gas is discharged into the space above the surface of the water liquid 402.

[0054] In some embodiments, the other end of the plurality of U-shaped tubes 404 has a flared end 4041, which facilitates the diffusion of flue gas in the aqueous liquid 402.

[0055] In some embodiments, a backflow prevention structure 4042 is provided on a plurality of U-tubes 404 above the liquid surface of the liquid 402 to prevent the liquid 402 from flowing back into the U-tubes 404.

[0056] In some embodiments, an inverted conical space is defined within the anti-backflow structure 4042. This inverted conical space may be in the shape of an inverted cone, which can effectively prevent the water 402 from flowing back into the U-shaped pipe 404.

[0057] In some embodiments, the drying module 500 includes a desiccant 501, which is arranged in a honeycomb pattern above the bends of a plurality of U-shaped tubes 404. This desiccant 501 can efficiently and fully dry the decontamination gas, remove moisture from the decontamination gas, and obtain dried gas.

[0058] In some embodiments, the oxygen generation module 600 includes an oxygen content detector 601, a gas delivery pipe 602, a potassium superoxide plate 603, a suction assembly 604, and a water mist nozzle 605. The oxygen content detector 601 is located at the catalytic oxidation module 700 and is used to monitor the oxygen content in the dried gas. The gas delivery pipe 602 is vertically arranged and includes a sealed containment space located above the drying module 500 and a gas delivery channel connected to the sealed containment space and extending downwards to near the bottom of the housing 401. The potassium superoxide plate 603 is disposed in the sealed containment space. The suction assembly 604 is used to extract and mix the water liquid 402 and the decontaminated gas above the surface of the water liquid 402 to form a gas-water mixture. Water mist nozzle 605 is connected to suction assembly 604 and is used to spray the gas-water mixture onto potassium superoxide board 603, so that potassium superoxide reacts with water and carbon dioxide to generate oxygen. The generated oxygen reaches the vicinity of the bottom of the chamber 401 through the gas delivery channel. It should be noted that since the oxygen generation module 600 uses the decontamination gas, the oxygen delivered through gas delivery pipe 602 still contains other gases. That is, the oxygen input into the decontamination and cooling module 400 through gas delivery pipe 602 is mixed with other gases and is not pure oxygen.

[0059] Specifically, when the oxygen content detector 601 detects that the oxygen content in the air or / and oxygen purified by the catalytic oxidation module 700 does not meet the breathing requirements of the trapped personnel, the suction component 604 will draw water liquid 402 and the decontamination gas above the surface of water liquid 402 and mix them to form a gas-water mixture. The gas-water mixture will be sprayed from the water mist nozzle 605 connected to the suction component 604 onto the potassium superoxide board 603, so that the potassium superoxide reacts with water and carbon dioxide to generate oxygen. The generated oxygen reaches the vicinity of the bottom of the box 401 through the gas supply pipe 602 for cooling, and then passes through the drying module 500, the catalytic oxidation module 700, and then enters the oxygen supply module 800 and the air preheating module 300 respectively to complete the continuous oxygen supply, providing purified air and / or oxygen with high oxygen content. On the one hand, this meets the breathing requirements of the trapped personnel in the fire, and on the other hand, it allows the combustible gases in the fire smoke to be completely burned.

[0060] In some embodiments, the water mist nozzle 605 is arranged at the top of the sealed containment space and above the potassium superoxide board 603, which can accurately and over a wide area spray the gas-water mixture onto the potassium superoxide board 603, thereby increasing the efficiency of the reaction between potassium superoxide and water and carbon dioxide to generate oxygen.

[0061] In some embodiments, the suction assembly 604 includes a suction pump 6041, an air extractor 6042, and a water extractor 6043; the suction pump 6041 is connected to the water mist nozzle 605, the upper end of the air extractor 6042, and the upper end of the water extractor 6043; the lower end of the air extractor 6042 is located between the liquid surface of the water 402 and the drying module 500; the lower end of the water extractor 6043 extends into the water 402 inside the housing 401. In other words, the water pump 6043 can draw water 402 under the action of the suction pump 6041; the air pump 6042 can draw the decontamination gas between the surface of the water 402 and the drying module 500 under the action of the suction pump 6041; the upper end of the air pump 6042 is connected to the upper end of the water pump 6043, so the water 402 and the decontamination gas will mix together after being drawn to form a gas-water mixture, which is sprayed out through the water mist nozzle 605 connected to the suction component 604.

[0062] In some embodiments, the water pump 6043 is fitted inside the air pump 6042, and the lower end of the air pump 6042 is funnel-shaped. The water pump 6043 fitted inside the air pump 6042 has a reasonable structural arrangement, facilitating the mixing of the extracted water 402 and the decontamination gas into a gas-water mixture; the funnel-shaped lower end of the air pump allows the air pump 6042 to efficiently extract gas.

[0063] In some embodiments, the catalytic oxidation module 700 includes a catalyst 701 arranged in a honeycomb pattern, which can fully contact the dried gas and efficiently remove residual CO from the gas.

[0064] In some embodiments, the oxygen delivery module 800 includes a blower (not shown in the figure). The blower can efficiently deliver purified air and / or oxygen to sustain life and provide respiratory support for trapped personnel while awaiting rescue.

[0065] In some embodiments, the fire smoke circulation filtration and continuous oxygen supply device 1000 is generally in the shape of an inverted L or an inverted J, and is similar to a vertical chimney. Under the chimney effect, the fire smoke is heated and buoyed, and moves vertically in the fire smoke circulation filtration and continuous oxygen supply device 1000, which can reduce mechanical traction and save costs.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fire smoke circulation filter and continuous oxygen supply device, characterized in that, The device comprises, from bottom to top, a smoke collecting module, a smoke fully burning module, an air preheating module, a washing and cooling module, a drying module, an oxygen generating module, a catalytic oxidation module connected with the drying module, and an oxygen feeding module connected with the catalytic oxidation module. The smoke collecting module is used for gathering fire smoke and making the fire smoke move vertically upward. The smoke fully burning module is used for receiving fire smoke from the smoke collecting module and preheated air or preheated air and oxygen from the air preheating module, so as to make the fire smoke fully burn. The air preheating module is used for receiving high-temperature smoke after full combustion from the smoke fully burning module and purified air or purified air and oxygen from the catalytic oxidation module, making the high-temperature smoke and the purified air or the purified air and oxygen exchange heat, and making the preheated air or the preheated air and oxygen enter the smoke fully burning module, while outputting the cooled smoke to the washing and cooling module. The oxygen generating module is used for generating oxygen and feeding the generated oxygen to the washing and cooling module. The washing and cooling module is used for washing and cooling the smoke after cooling from the air preheating module or / and the oxygen fed from the oxygen generating module, removing toxic and harmful substances in the smoke or / and the oxygen during the washing and cooling process, obtaining washed and cooled gas, and making the washed and cooled gas enter the drying module. The drying module is used for drying the washed and cooled gas, obtaining dried gas. The catalytic oxidation module is used for catalytically oxidizing the dried gas from the drying module, removing residual CO in the dried gas, obtaining purified air or purified air and oxygen, and making part of the purified air or the purified air and oxygen enter the oxygen feeding module and the other part of the purified air or the purified air and oxygen enter the air preheating module. The oxygen feeding module is used for feeding part of the purified air or the purified air and oxygen to the external environment.

2. The fire smoke circulation and filtration continuous oxygen supply device according to claim 1, characterized in that, The smoke collecting module defines a vertical channel, and the radial dimension of the vertical channel gradually decreases from bottom to top.

3. The fire smoke circulation and filtration continuous oxygen supply device according to claim 2, characterized in that, The air preheating module comprises a plurality of first channels and a second channel outside the plurality of first channels; one end of the plurality of first channels extends to the top of the smoke fully burning module and communicates with the internal combustion space of the smoke fully burning module, and the other end of the plurality of first channels extends to the top of the air preheating module and is connected with the washing and cooling module, so that the high-temperature smoke after full combustion in the smoke fully burning module enters the washing and cooling module through the plurality of first channels; the inlet end of the second channel is connected with the catalytic oxidation module, and the outlet end of the second channel is connected with the smoke fully burning module through a third channel, so that the other part of the purified air or the purified air and oxygen from the catalytic oxidation module enters the combustion space of the smoke fully burning module in sequence through the second channel and the third channel; wherein the high-temperature smoke in the first channel and the purified air or the purified air and oxygen in the second channel exchange heat with each other.

4. The fire smoke circulation and filtration continuous oxygen supply device according to claim 3, characterized in that, The decontamination and cooling module comprises a box, a water liquid, activated carbon and a plurality of U-shaped pipes, the water liquid and the activated carbon are contained in the box, and the activated carbon is arranged in a honeycomb shape in the water liquid; a plurality of the U-shaped pipes are arranged in reverse, one end of a plurality of the U-shaped pipes is in one-to-one correspondence with the other end of a plurality of the first channels, the other end of a plurality of the U-shaped pipes extends downward to the vicinity of the bottom of the box, and the elbow of a plurality of the U-shaped pipes extends out of the water liquid level.

5. The fire smoke circulation and filtration continuous oxygen supply device according to claim 4, characterized in that, The other end of a plurality of the U-shaped pipes has a flared mouth.

6. The fire smoke circulation and filtration continuous oxygen supply device according to claim 4, characterized in that, A plurality of the U-shaped pipes are provided with an anti-backflow structure for preventing water liquid from flowing backward above the water liquid level.

7. The fire smoke circulation and filtration continuous oxygen supply device according to claim 4, characterized in that, The oxygen generation module comprises an oxygen content detector, a gas conveying pipe, a potassium superoxide plate, a suction assembly and a water mist sprayer; The oxygen content detector is arranged at the catalytic oxidation module to monitor the oxygen content in the dried gas; The gas conveying pipe is vertically arranged, and comprises a sealed containing space above the drying module and a gas conveying channel connected with the sealed containing space and extending downward to the vicinity of the bottom of the box; The potassium superoxide plate is arranged in the sealed containing space; The suction assembly is used to extract the water liquid and the decontaminated gas above the water liquid level to mix and form a gas-water mixture; The water mist sprayer is connected with the suction assembly and is used to spray the gas-water mixture onto the potassium superoxide plate to make the potassium superoxide react with water and carbon dioxide to generate oxygen, and the generated oxygen reaches the vicinity of the bottom of the box through the gas conveying channel.

8. The fire smoke circulation and filtration continuous oxygen supply device according to claim 7, characterized in that, The suction assembly comprises a suction pump, an air extractor and a water extractor; the suction pump is connected with the water mist sprayer, the upper end of the air extractor and the upper end of the water extractor; the lower end of the air extractor is located between the water liquid level and the drying module; and the lower end of the water extractor extends into the water liquid in the box.

9. The fire smoke circulation and filtration continuous oxygen supply device according to any one of claims 1-8, characterized in that, The catalytic oxidation module comprises a catalyst arranged in a honeycomb shape.

10. The fire smoke circulation and filtration continuous oxygen supply device according to any one of claims 1-8, characterized in that, The fire smoke circulation and detoxification continuous oxygen supply device is in the shape of inverted L or inverted J as a whole.

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