CN103344090B - liquefied air refrigeration and fire extinguishing system - Google Patents
liquefied air refrigeration and fire extinguishing system Download PDFInfo
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- CN103344090B CN103344090B CN201310241491.4A CN201310241491A CN103344090B CN 103344090 B CN103344090 B CN 103344090B CN 201310241491 A CN201310241491 A CN 201310241491A CN 103344090 B CN103344090 B CN 103344090B
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Abstract
The present invention relates to a kind of liquefied air refrigeration and fire extinguishing system, including: air compressor, utilize electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;The carbon dioxide stored in carbon dioxide air accumulator is used as system firing-fighting medium;And the liquefied air reduced pressure is vaporized heat absorption and system is freezed and lowers the temperature;Low-pressure gas supply air compressor after refrigeration and cooling, it is achieved that the recycling of air。The present invention utilizes the liquefied air that air compressor produces to be may be used for the storage storehouse of silo reserve storage, fruit and vegerable by heat absorption of vaporizing, network computer room, the cooling in the regions such as integrated network equipment bin, electric room, building or refrigeration, and the carbon dioxide separated can serve as the medium of fire extinguishing。
Description
Technical field
The present invention relates to the technical field of the association system of refrigeration and fire extinguishing, it is more particularly related to a kind of liquefied air refrigeration and fire extinguishing system。
Background technology
Development along with human society, industrial and agricultural production and e-commerce initiative need carry out ice making refrigeration with substantial amounts of refrigeration facility, such as, silo reserve storage in agricultural, the storage storehouse of fruit and vegerable, network computer room, integrated network equipment bin, electric room, building etc., all need to use the energy to be used as the fields such as workers and peasants business without exception and come ice making and refrigeration, and it is particularly disadvantageous that, the refrigeration facility such as air-conditioning, refrigerator-freezer also needs to the harmful substances such as the freon of use considerable damage earth's ozone layer;And novel refrigeration medium medium its be unknown on the impact of environment, there is potential environment hidden danger, thus be also difficult to ensure that human ecological environment is not produced negative impact by it。For this, prior art needs a kind of environmental protection and efficient refrigeration system。
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, the goal of the invention of the present invention is to be in that to provide a kind of liquefied air refrigeration and fire extinguishing system。
To achieve the above object of the invention, the technical solution used in the present invention is:
A kind of liquefied air refrigeration and fire extinguishing system, it is characterised in that including: air compressor, utilize electrical network to power and compressed by air;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;The carbon dioxide stored in carbon dioxide air accumulator is used as system firing-fighting medium;And the liquefied air reduced pressure is vaporized heat absorption and system is freezed and lowers the temperature;Low-pressure gas supply air compressor after refrigeration and cooling, it is achieved that the recycling of air。
Compared with prior art, the method have the advantages that
1. the liquefied air of the present invention freezes and fire extinguishing system, it is characterized in that utilize air compressor to produce liquefied air may be used for the storage storehouse of silo reserve storage, fruit and vegerable by heat absorption of vaporizing, network computer room, the cooling in the regions such as integrated network equipment bin, electric room, building or refrigeration。And the CO 2 high pressure gas that liquefied air decompression separation obtains can serve as extinguishing chemical。
2. the liquefied air refrigeration of the present invention and fire extinguishing system, utilize the heat of vaporization of the liquefied air that air compressor produces to carry out freezing and cool down, freeze with rate of cooling soon, effective;And there is no the discharge of the harmful gass such as freon, environmental sound, is the refrigerating method of a kind of environment-friendly high-efficiency。And when unexpected breaking out of fire or hidden danger, be possible not only to be put out a fire by the high-pressure carbon dioxide gas laid in time, but also rapid cooling can be realized by the flow of adjustment liquefied air;By cooling and the effect of high-pressure carbon dioxide air-isolation rapidly, it is achieved quickly, efficiently and the fire extinguishing of environmental protection。
3. the liquefied air of the present invention freezes and fire extinguishing system, refrigeration only needs can be realized by devices such as liquefied air air accumulator and pressure-control valves, when being applied to the cooling process of large warehoused and network electronic devices etc., substantial amounts of refrigeration plant can be saved and control equipment investment, reduce cost, and decrease regular maintenance management。
Accompanying drawing explanation
Fig. 1 is that the present invention is embodied as the schematic diagram of liquefied air refrigeration and fire extinguishing system described in embodiment。
Detailed description of the invention
As shown in Figure 1, liquefied air of the present invention refrigeration and fire extinguishing system, it is characterised in that including: air compressor 10, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir 20, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator 30, compresses at first for stored air compressor and separates the carbon dioxide obtained;Decompressor 40, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;The carbon dioxide stored in carbon dioxide air accumulator is used as system firing-fighting medium;And the liquefied air reduced pressure is vaporized heat absorption and system is freezed and lowers the temperature;Low-pressure gas supply air compressor after refrigeration and cooling, it is achieved that the recycling of air。Described carbon dioxide air accumulator 40 is connected with hotness and/or Smoke Detector device 50, when alarm signal occurs for hotness and/or Smoke Detector device 50, opens described carbon dioxide air accumulator, utilizes CO 2 high pressure gas to carry out fire extinguishing process。
Below in conjunction with specific embodiment and Figure of description, technical scheme is further described。
Embodiment 1
The present embodiment relates to refrigeration and the fire extinguishing system of a kind of grain storage enterprise application, and described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to grain storage warehouse by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that grain storage warehouse is lowered the temperature, and the degree of cooling can pass through to control the flow-control of liquid gas;Low-pressure gas supply air compressor after refrigeration, it is achieved that the recycling of air。It is provided with hotness and/or Smoke Detector device in described grain depot, when hotness and/or Smoke Detector device generation alarm signal, automatically starts described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described grain depot is carried out fire extinguishing process;But also rapid cooling can be realized by the flow of adjustment liquefied air;By cooling and the effect of high-pressure carbon dioxide air-isolation rapidly, it is achieved quickly, efficiently and the fire extinguishing of environmental protection。
The present embodiment utilizes the liquefied air that air compressor produces to absorb heat of vaporization and grain storage warehouse is cooled down and puts out a fire, and rate of cooling is fast, effective, it is possible to realize multiple grain storage warehouses carry out cooling control and management simultaneously;And there is no the discharge of the harmful gass such as freon, environmental sound。Additionally, without using the equipment such as the refrigeration plants such as substantial amounts of air-conditioning and complicated control system in described refrigeration system, such that it is able to greatly reduce equipment investment。
Embodiment 2
The present embodiment relates to refrigeration and the fire extinguishing system of a kind of fruit and vegerable storage warehouse applications, and described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to grain storage warehouse by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that storage warehouse is lowered the temperature, and the degree of the refrigeration in different storage regions can pass through to control the flow-control of liquid gas;Low-pressure gas supply air compressor after refrigeration, it is achieved that the recycling of air。It is additionally provided with hotness and/or Smoke Detector device in described grain depot, when hotness and/or Smoke Detector device generation alarm signal, automatically starts described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described grain depot is carried out fire extinguishing process;But also rapid cooling can be realized by the flow of adjustment liquefied air;By cooling and the effect of high-pressure carbon dioxide air-isolation rapidly, it is achieved quickly, efficiently and the fire extinguishing of environmental protection。
Embodiment 3
The present embodiment relates to refrigeration and the fire extinguishing system of a kind of network and electronic equipment cabinet, and described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to electronic equipment cabinet by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that network and electronic equipment cabinet are lowered the temperature, and the refrigeration degree of network and electronic equipment cabinet can pass through to control the flow-control of liquid gas;Low-pressure gas supply air compressor after refrigeration, it is achieved that the recycling of air。It is additionally provided with hotness and/or Smoke Detector device in described grain depot, when hotness and/or Smoke Detector device generation alarm signal, automatically starts described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described grain depot is carried out fire extinguishing process;But also rapid cooling can be realized by the flow of adjustment liquefied air;By cooling and the effect of high-pressure carbon dioxide air-isolation rapidly, it is achieved quickly, efficiently and the fire extinguishing of environmental protection。
Network described in the present embodiment and electronic equipment cabinet, including cabinet and the cool room being arranged on described cabinet top, described cabinet is the closing cabinet encircled a city by multiple sides and cabinet door, and also there is multiple horizontally disposed equipment frame in described cabinet, in described equipment frame, be provided with louvre;Having condenser and condensate tank(trap) in wherein said cool room, described condenser is connected with described liquefied air;And it is provided with radiating tube inside the side of described cabinet, and described equipment frame lower surface is also equipped with radiating tube;With condensate tank(trap) built with various cooling mediums in described radiating tube, described condensate tank(trap) forms circulating cooling system together with described radiating tube;As preferably, described cabinet door being provided with cold air guiding gutter;Be also provided with fan as required in described cool room, described fan only in network cabinet radiating effect occur that abnormal (such as overheated phenomenon etc. occurs in subregion) time just can start。Additionally as preferably, the total length of the radiating tube that the total length of the radiating tube that the equipment frame lower surface of bottom of cabinet bulk is arranged is arranged higher than the equipment frame lower surface at cabinet top。Condenser is arranged on the top of network cabinet by network in the present embodiment and electronic equipment cabinet, the Heat transmission approach of the light hot-air free convection of cold air and bottom of top weight can be utilized, the conveying of cold air lower portion hot-zone can also be realized without forced convertion, and hot-air is carried to upper condensing chamber, thus substantially increasing refrigeration。Being provided only with condenser in additionally described network cabinet cool room, thus advantageously forming the large scale network rack cooling system of central authorities' integrating control, being conducive to carrying out modularization management and maintenance。
Embodiment 4
The present embodiment relates to the refrigeration system of a kind of network and electronic equipment cabinet, and described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Hotness and/or Smoke Detector device it is provided with in network and electronic equipment cabinet, when hotness and/or Smoke Detector device generation alarm signal, start described carbon dioxide air accumulator, utilize carbon dioxide air accumulator that described network and electronic equipment cabinet are carried out fire extinguishing process;Conveyance conduit, for liquefied air being transported in network and electronic equipment cabinet, utilize decompressor that liquefied air is carried out reduced pressure treatment, and utilizing the vaporization heat absorption of liquefied air that network and electronic equipment cabinet are carried out cooling process, the degree of cooling can pass through to control the flow-control of liquid gas;Utilize the heat of compression that air compressor compression produces that the low-pressure gas after refrigeration is heated, additionally can utilize second heating apparatus that the gas after refrigeration is heated, for instance low-pressure gas is heated by the heat produced by industrial exhaust heat, solar energy or geothermal energy;Then utilizing turbo-generator to generate electricity, the alternating current that obtains of generating is connected to the grid electric power system;Exhaust steam supply air compressor after turbo-generator generating, it is achieved the recycling of air。
Embodiment 5
The present embodiment relates to the refrigeration system of a kind of network and electronic equipment room, and described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;High Temperature High Pressure air storage tank, compresses the High Temperature High Pressure air obtained for stored air;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Hotness and/or Smoke Detector device it is provided with in network and electronic equipment room, when hotness and/or Smoke Detector device generation alarm signal, start described carbon dioxide air accumulator, utilize carbon dioxide air accumulator that described network and electronic equipment room are carried out fire extinguishing process;Conveyance conduit, for liquefied air being transported in network and electronic equipment room, utilize decompressor that liquefied air is carried out reduced pressure treatment, and utilizing the vaporization heat absorption of liquefied air that network and electronic equipment room are carried out cooling process, the degree of cooling can pass through to control the flow-control of liquid gas;Low-pressure gas after refrigeration utilizes gas pipeline to discharge described network and electronic equipment room, and utilize the heat of compression that air compressor compression produces that described gas pipeline is preheated, additionally can utilize second heating apparatus that the low-pressure gas after refrigeration is preheated, for instance low-pressure gas is preheated by the heat produced by industrial exhaust heat, solar energy or geothermal energy;Gas after preheating mixes with the High Temperature High Pressure air in High Temperature High Pressure air storage tank, thus realizing described high temperature and high pressure gas carried out pressure and temperature adjustment, and utilizes turbo-generator to generate electricity, and the alternating current that generating obtains is connected to the grid electric power system;Exhaust steam supply air compressor after turbo-generator generating, it is achieved the recycling of air。
Claims (8)
1. a liquefied air refrigeration and fire extinguishing system, it is characterised in that including: air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;The carbon dioxide stored in carbon dioxide air accumulator is used as system firing-fighting medium;And the liquefied air reduced pressure is vaporized heat absorption and system is freezed and lowers the temperature;Low-pressure gas supply air compressor after refrigeration and cooling, it is achieved that the recycling of air。
2. liquefied air according to claim 1 refrigeration and fire extinguishing system, it is characterised in that: described refrigeration and fire extinguishing system are applied to refrigeration and the fire extinguishing process of building, warehouse, network and electronic equipment room or network and electronic equipment cabinet。
3. the refrigeration of a network and electronic equipment cabinet and fire extinguishing system, it is characterised in that described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to network and electronic equipment cabinet by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that network and electronic equipment cabinet are lowered the temperature, and the refrigeration degree of network and electronic equipment cabinet can pass through to control the flow-control of liquefied air;Low-pressure gas supply air compressor after refrigeration, it is achieved that the recycling of air;Described network and electronic equipment cabinet are additionally provided with hotness and/or Smoke Detector device, when hotness and/or Smoke Detector device generation alarm signal, automatically start described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described network and electronic equipment cabinet are carried out fire extinguishing process;And realize rapid cooling by regulating the flow of liquefied air;Effect by cooling and high-pressure carbon dioxide air-isolation rapidly, it is achieved quick, high-effect fire-extinguishing。
4. refrigeration according to claim 3 and fire extinguishing system, it is characterized in that described network and electronic equipment cabinet, including cabinet and the cool room being arranged on described cabinet top, described cabinet is the closing cabinet encircled a city by multiple sides and cabinet door, and also there is multiple horizontally disposed equipment frame in described cabinet, in described equipment frame, be provided with louvre;Having condenser and condensate tank(trap) in wherein said cool room, described condenser is connected with post-decompression liquefied air, provides low-temperature receiver by described liquefied air to condenser;And it is provided with radiating tube inside the side of described cabinet, and described equipment frame lower surface is also equipped with radiating tube;With condensate tank(trap) built with cooling medium in described radiating tube, described condensate tank(trap) forms circulating cooling system together with described radiating tube;And the total length of the radiating tube that the total length of the radiating tube that the equipment frame lower surface of described bottom of cabinet bulk is arranged is arranged higher than the equipment frame lower surface at cabinet top。
5. the refrigeration system of a network and electronic equipment cabinet, it is characterised in that described system includes: air compressor, it utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Hotness and/or Smoke Detector device it is provided with in network and electronic equipment cabinet, when hotness and/or Smoke Detector device generation alarm signal, start described carbon dioxide air accumulator, utilize carbon dioxide air accumulator that described network and electronic equipment cabinet are carried out fire extinguishing process;Conveyance conduit, for liquefied air being transported in network and electronic equipment cabinet, utilize decompressor that liquefied air is carried out reduced pressure treatment, and utilizing the vaporization heat absorption of liquefied air that network and electronic equipment cabinet are carried out cooling process, the degree of cooling can pass through to control the flow-control of liquefied air;Utilize the heat of compression that air compressor compression produces that the low-pressure gas after refrigeration is heated, and/or utilize second heating apparatus that the gas after refrigeration is heated;Then utilizing turbo-generator to generate electricity, the alternating current that obtains of generating is connected to the grid electric power system;Exhaust steam supply air compressor after turbo-generator generating, it is achieved the recycling of air。
6. the refrigeration system of a network and electronic equipment room, it is characterised in that described system includes: air compressor, it utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;High Temperature High Pressure air storage tank, compresses the High Temperature High Pressure air obtained for stored air;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Hotness and/or Smoke Detector device it is provided with in network and electronic equipment room, when hotness and/or Smoke Detector device generation alarm signal, start described carbon dioxide air accumulator, utilize carbon dioxide air accumulator that described network and electronic equipment room are carried out fire extinguishing process;Conveyance conduit, for liquefied air being transported in network and electronic equipment room, utilizing decompressor that liquefied air carries out reduced pressure treatment, and utilize the vaporization heat absorption of liquefied air that network and electronic equipment room are carried out cooling process, the degree of cooling is by controlling the flow-control of liquefied air;Gas after refrigeration utilizes the heat of compression of air compressor compression generation to describedConveyance conduitIt is heated, and/or utilizes second heating apparatus that the gas after refrigeration is heated;Gas after heating mixes with the High Temperature High Pressure air in High Temperature High Pressure air storage tank, it is achieved described high temperature and high pressure gas carries out pressure and temperature adjustment, and utilizes turbo-generator to generate electricity, and the alternating current that obtains of generating is connected to the grid electric power system;Exhaust steam supply air compressor after turbo-generator generating, it is achieved the recycling of air。
7. the refrigeration of a grain storage warehouse applications and fire extinguishing system, it is characterised in that described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to grain storage warehouse by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that grain storage warehouse is lowered the temperature, and the degree of cooling can pass through to control the flow-control of liquefied air;Low-pressure gas supply air compressor after refrigeration, it is achieved the recycling of air;Hotness and/or Smoke Detector device it is provided with in described grain storage warehouse, when hotness and/or Smoke Detector device generation alarm signal, automatically start described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described grain storage warehouse is carried out fire extinguishing process。
8. the refrigeration of fruit and vegerable storage warehouse applications and fire extinguishing system, it is characterised in that described system includes air compressor, utilizes electrical network to power or air is compressed by other power;Liquefied air fluid reservoir, for the liquefied air that stored air compressor compresses obtains;Carbon dioxide air accumulator, compresses at first for stored air compressor and separates the carbon dioxide obtained;Conveyance conduit, for being transported to fruit and vegerable storage warehouse by liquefied air;Decompressor, for carrying out reduced pressure treatment by the liquefied air that liquefied air fluid reservoir stores;Post-decompression liquefied air utilizes the principle of vaporization heat absorption that fruit and vegerable storage warehouse is lowered the temperature, and the degree of the refrigeration in different storage regions can pass through to control the flow-control of liquefied air;Low-pressure gas supply air compressor after refrigeration, it is achieved that the recycling of air;The storage of described fruit and vegerable is additionally provided with hotness and/or Smoke Detector device in warehouse, when hotness and/or Smoke Detector device generation alarm signal, automatically start described carbon dioxide air accumulator, utilize CO 2 high pressure gas that described fruit and vegerable storage warehouse is carried out fire extinguishing process;And realize rapid cooling by regulating the flow of liquefied air;Realize putting out a fire fast and efficiently。
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CN110921239A (en) * | 2019-12-17 | 2020-03-27 | 辽宁工程技术大学 | Belt feeder head liquid carbon dioxide cooling system |
CN111609580A (en) * | 2020-06-17 | 2020-09-01 | 天津大学 | Cabinet cooling system and method using carbon dioxide as working medium |
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