阅读说明：本技术 一种使用燃料电池的防火系统 (Fireproof system using fuel cell ) 是由 施旭梅 罗国庆 覃世想 罗浩宇 于 2021-08-24 设计创作，主要内容包括：本发明涉及相对密闭空间的消防防火领域,具体公开了一种使用燃料电池的防火系统,包括依次连接的空气压缩机、净化器和燃料电池,空气压缩机的一个吸气口连接防护区(机房、档案馆、博物馆等)将防护区内的空气抽出,空气经过依次净化器后进入燃料电池,燃料电池的另一个入口连接有燃料供应设备；燃料电池输出电流并经燃料电池的输出端依次连接稳压器和蓄电池,蓄电池连接部分或全部用电设备,剩下的部分用电设备连接市电。采用将防护区内氧气消耗掉的方法主动降低防护区内的氧气浓度到16%以下,从根源上避免了火灾的发生,实现防火功能；转移出去的空气或氧气可以配合燃料电池进行循环,减少或不需要从外界额外获取电能,节能环保。(The invention relates to the field of fire protection and fire prevention of relatively closed spaces, and particularly discloses a fire protection system using a fuel cell, which comprises an air compressor, a purifier and the fuel cell which are sequentially connected, wherein one air suction port of the air compressor is connected with a protection area (a machine room, an archive, a museum and the like) to pump out air in the protection area, the air enters the fuel cell after passing through the sequential purifier, and the other inlet of the fuel cell is connected with fuel supply equipment; the fuel cell outputs current and is sequentially connected with the voltage stabilizer and the storage battery through the output end of the fuel cell, the storage battery is connected with part or all of the electric equipment, and the rest part of the electric equipment is connected with the commercial power. The method for consuming oxygen in the protection area is adopted to actively reduce the oxygen concentration in the protection area to be below 16 percent, radically avoid the occurrence of fire and realize the fireproof function; the transferred air or oxygen can be matched with the fuel cell for circulation, so that the electric energy is reduced or not required to be additionally obtained from the outside, and the energy-saving and environment-friendly effects are achieved.)

1. A fire protection system for use with a fuel cell, established around a containment area, the containment area employing a sealed door or window, comprising:

the air purifier comprises an air compressor, a purifier and a fuel cell which are sequentially connected, wherein an air suction port of the air compressor is connected with the protection zone to pump out air in the protection zone, the air enters the fuel cell after passing through the sequential purifier, the other inlet of the fuel cell is connected with a fuel supply device, and the fuel supply device provides hydrogen or methane; the fuel cell outputs current, the output end of the fuel cell is sequentially connected with the voltage stabilizer and the storage battery, the storage battery is connected with part or all of electric equipment, and the rest part of electric equipment is connected with commercial power.

2. The fire protection system using a fuel cell according to claim 1, wherein: and the other air suction port of the air compressor is connected with external supplementary air.

3. The fire protection system using a fuel cell according to claim 2, wherein: and the liquid outlet of the fuel cell is connected with a liquid collecting basin or directly discharged to the outside.

4. The fire protection system using a fuel cell according to claim 1, wherein: the protection area is connected with a nitrogen supply device, and the nitrogen supply device injects nitrogen to supplement the air amount pumped out in the protection area and is used for maintaining the air pressure balance of the protection area.

5. The fire protection system using a fuel cell according to claim 1, wherein: a dehydrator, a buffer tank and a molecular sieve are arranged between the purifier and the fuel cell.

6. The fire protection system using a fuel cell according to claim 5, wherein: the oxygen concentration sensor, the temperature sensor, the monitor, the indicator light and the communication network are arranged in the protection area, a control center is arranged outside the protection area, and the control center is connected with and controls the oxygen concentration sensor, the temperature sensor, the monitor and the indicator light through the communication network.

7. The fire protection system using a fuel cell according to any one of claims 1 to 6, characterized in that: the fuel cell adopts a proton exchange membrane fuel cell.

Technical Field

The invention belongs to the technical field of fire fighting, and particularly relates to a fire protection system using a fuel cell.

Background

The three major elements of combustion are combustibles, comburents and oxygen. In the traditional fire prevention method, a shower head such as a shower head is arranged on a ceiling in a protection area, if fire occurs, water spray is started, and for the places (such as office buildings, and the like) in the protection area, goods cannot meet water, and generally carbon dioxide is sprayed. In addition, according to some schemes, a patrol robot is arranged in the protection area, the patrol robot judges a fire source through infrared intensity, and simultaneously adjusts the spraying angle and the spraying force of a spray gun through a mechanical arm, so that the function of automatic fire extinguishing is realized. The scheme adopts a post-processing mode, the rescue can not be always in time, and part of data is damaged at the time.

The mainstream fire prevention technology at present is a technology (adopting a precaution mode) for injecting nitrogen into a room, namely introducing nitrogen into the room and then reducing the content of oxygen in the room (researches show that the room can not be ignited completely after the content of the oxygen is below 16 percent); where the room needs to be sealed to avoid nitrogen leakage. Based on the requirement of reducing the oxygen content, no scheme for directly consuming oxygen exists in the market, and more blank spaces and development spaces exist in the field.

A fuel cell is a chemical device that directly converts chemical energy of fuel into electrical energy, and is also called an electrochemical generator. It is the fourth power generation technology following hydroelectric wind power generation, thermal power generation and atomic power generation. The fuel cell converts the Gibbs free energy in the chemical energy in the fuel into electric energy through electrochemical reaction, and is not limited by the Carnot cycle effect, so the efficiency is high; in addition, the fuel cell uses fuel and oxygen as raw materials, and has no mechanical transmission part, so that the fuel cell has no noise pollution and discharges extremely little harmful gas. It follows that fuel cells are promising power generation technologies from the viewpoint of energy conservation and ecological environment protection.

The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.

Disclosure of Invention

It is an object of the present invention to provide a fire protection system using a fuel cell that consumes oxygen in a protected area while providing a portion of energy for the operation of the fire protection system itself.

In order to achieve the above object, the present invention provides a fire protection system using a fuel cell, which is built around a protection zone, and the protection zone adopts a sealed door and window to ensure that the protection zone has sufficient tightness. The fire protection system includes: the air purifier comprises an air compressor, a purifier and a fuel cell which are sequentially connected, wherein an air suction port of the air compressor is connected with the protection zone to pump out air in the protection zone, the air sequentially passes through the purifier and then enters the fuel cell, and the other inlet of the fuel cell is connected with a fuel supply device; the fuel cell outputs current, the output end of the fuel cell is sequentially connected with the voltage stabilizer and the storage battery, the storage battery is connected with part or all of electric equipment, and the rest part of electric equipment is connected with commercial power. By adopting the scheme, the oxygen in the protective area is actively consumed, the content of the oxygen in the air can be easily reduced to be within 16 percent, one of three major elements of combustion is not enough to maintain the combustion, the possibility of fire ignition of the protective area is fundamentally eliminated, the fire prevention performance is strong, and any material can not be damaged in advance.

As an improvement of the scheme, the other air suction port of the air compressor is connected with the outside supplementary air. By adopting the scheme, after the oxygen concentration in the protection area is reduced, oxygen can be obtained from the outside to temporarily meet the power generation requirement. In the protection zones with different functions, the volume of some protection zones is larger, the electric quantity required by the protection zones is lower, and at the moment, the air compressor can only obtain electric energy from the original protection zones; some protection areas need to be opened frequently and get access to goods, new air is supplemented every time the door is opened, and in the case, the air compressor does not need to compress oxygen from the outside frequently.

The air compressor sucks air from the outside to compress the air and then discharges the air to the next equipment, and an air inlet of the air compressor is provided with an air volume sensor. As a modification of the above, the air compressor may be a screw compressor or an air pump.

As an improvement of the scheme, a liquid collecting basin is connected with a liquid outlet of the fuel cell or the liquid is directly discharged to the outside. The reaction product of the fuel cell is mainly water, so that the fuel cell can be directly discharged without worrying about environmental pollution.

As an improvement of the above scheme, the protection area is connected with a nitrogen supply device, and the nitrogen supply device injects nitrogen to supplement the amount of air pumped out in the protection area, so as to maintain the air pressure balance of the protection area. By adopting the scheme, the pressure difference between the inside and the outside of the protection zone can be prevented from being increased. The oxygen content of the air inside the protected zone can also be reduced more quickly after injection of nitrogen (or other inert gas harmless to the human body).

As an improvement of the scheme, a dehydrator, a buffer tank and a molecular sieve are arranged between the purifier and the fuel cell. By adopting the scheme, the dehydrator filters water in air, the bottom of the dehydrator is provided with the drain valve and the flow sensor, and the dehydrator is used for providing clean and dry air. The molecular sieve is specially used for extracting oxygen, so that the oxygen concentration compressed to the fuel cell is better, and the fuel cell reaction is more facilitated. This design reduces impurities entering the fuel cell, which, in addition to contributing to improved efficiency of the fuel cell, may extend the useful life of the fuel cell.

As an improvement of the scheme, an oxygen concentration sensor, a temperature sensor, a monitor, an indicator light and a communication network are arranged in the protection area, a control center is arranged outside the protection area, and the control center is connected with and controls the oxygen concentration sensor, the temperature sensor, the monitor and the indicator light through the communication network. By adopting the scheme, the intelligent control and remote management of the fire protection system are realized.

As an improvement of the scheme, the fuel cell adopts a proton exchange membrane fuel cell.

Compared with the prior art, the invention has the following beneficial effects: the method of consuming oxygen in the protection area is adopted to actively reduce the oxygen concentration in the protection area, and the fire disaster is fundamentally avoided. The transferred air or oxygen can be matched with the fuel cell to circulate to generate clean electric energy, and then the clean electric energy is used for maintaining the operation of the protection area, so that the electric energy is reduced or not required to be additionally obtained from the outside, and the energy-saving and environment-friendly effects are realized. In the process of pumping away the air or the oxygen, nitrogen or other gases harmless to human bodies can be supplemented into the protection area to balance the air pressure inside and outside the protection area.

Drawings

FIG. 1 is a schematic view of a fire protection system according to an embodiment;

fig. 2 is a schematic diagram of a fuel cell according to an embodiment.

Description of the main reference numerals: 10. a protected area; 11. an air compressor; 12. a purifier; 13. a dehydrator; 14. a buffer tank; 15. a molecular sieve; 16. a fuel cell; 17. a voltage regulator; 18. a storage battery; 20. a nitrogen supply device; 30. an electric device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. The terms "first", "second" and "third", if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features or a precedence of indicated technical features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 and 2, the present invention discloses a fire protection system using a fuel cell, which is built around a protection zone 10, wherein the protection zone 10 adopts a sealed door and window to ensure that the protection zone 10 has sufficient tightness. The fire protection system includes: the air purifier comprises an air compressor 11, a purifier 12 and a fuel cell 16 which are connected in sequence, wherein one air suction port of the air compressor 11 is connected with the protected area 10 to draw air in the protected area 10, the air enters the fuel cell 16 after passing through the purifier 12 in sequence, and the other inlet of the fuel cell 16 is connected with a fuel supply device; the fuel cell 16 outputs current, the output end of the fuel cell 16 is sequentially connected with the voltage stabilizer 17 and the storage battery 18, the storage battery 18 is connected with part or all of the electric equipment 30, and the rest part of the electric equipment 30 is connected with commercial power. By adopting the scheme, the oxygen in the protective area 10 is actively consumed, the content of the oxygen in the air can be easily reduced to be within 16 percent, one of three major elements of combustion is not enough to maintain the combustion, the possibility of fire of the protective area 10 is fundamentally eliminated, the fire prevention performance is strong, and any material can not be damaged in advance.

The fuel supply provides a gas that can be used to consume oxygen, such as hydrogen or methane.

As a modification of the above scheme, the other air suction port of the air compressor 11 is connected with the outside supplementary air. By adopting the scheme, after the oxygen concentration in the protective area 10 is reduced, oxygen can be obtained from the outside to temporarily meet the power generation requirement. Among the protection zones 10 with different functions, some protection zones 10 have larger volumes, and the electric quantity required for maintaining the protection zones 10 is lower, at this time, the air compressor 11 can only obtain electric energy from the original protection zones 10; some protected areas 10 need to be opened frequently to access the goods, and new air is replenished each time the door is opened, in which case the air compressor 11 does not need to compress oxygen from the outside frequently.

The air compressor 11 sucks air from the outside to compress the air, and then discharges the air to the next equipment, and an air inlet of the air compressor 11 is provided with an air volume sensor. As a modification of the above, the air compressor 11 may be a screw compressor or an air pump.

As a modification of the above, a liquid collection basin is connected to the liquid discharge port of the fuel cell 16 or directly discharged to the outside. The reaction product of the fuel cell 16 is mainly water and can be directly discharged without worrying about environmental pollution.

As a modification of the above solution, a nitrogen supply device 20 is connected to the protected area 10, and the nitrogen supply device 20 injects nitrogen gas to supplement the amount of air pumped out in the protected area 10, so as to maintain the air pressure balance of the protected area 10. By adopting the scheme, the pressure difference between the inside of the protection zone 10 and the outside of the protection zone 10 can be prevented from being increased. The oxygen content of the air inside the protected zone 10 can also be reduced more quickly after injection of nitrogen (or other inert gas harmless to the human body).

As a modification of the above, a water separator 13, a buffer tank 14, and a molecular sieve 15 are provided between the purifier 12 and the fuel cell 16. By adopting the scheme, the dehydrator 13 filters water in air, the bottom of the dehydrator 13 is provided with a drain valve and a flow sensor, and the dehydrator 13 is used for providing clean and dry air. The molecular sieve 15 is dedicated to extracting oxygen, so that the oxygen concentration compressed to the fuel cell 16 is better, and the reaction of the fuel cell 16 is more facilitated. This design reduces impurities entering the fuel cell 16, which, in addition to contributing to increased efficiency of the fuel cell 16, may also extend the useful life of the fuel cell 16.

As an improvement of the above scheme, an oxygen concentration sensor, a temperature sensor, a monitor, an indicator light and a communication network are arranged in the protective area 10, a control center is arranged outside the protective area 10, and the control center is connected with and controls the oxygen concentration sensor, the temperature sensor, the monitor and the indicator light through the communication network. By adopting the scheme, the intelligent control and remote management of the fire protection system are realized.

As a modification of the above, the fuel cell 16 employs a proton exchange membrane fuel cell.

The method of consuming oxygen in the protection area 10 is adopted to actively reduce the oxygen concentration in the protection area 10, and the fire disaster is fundamentally avoided. The transferred air or oxygen can be matched with the fuel cell 16 for circulation to generate clean electric energy, and then the clean electric energy is used for maintaining the operation of the protection area 10, so that the electric energy is reduced or not required to be additionally obtained from the outside, and the energy-saving and environment-friendly effects are achieved. During the process of pumping away air or oxygen, nitrogen or other gases harmless to human body can be supplemented into the protected area 10 for balancing the air pressure inside and outside the protected area 10.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.