CN112902485A - Dual-purpose system for refrigeration and fire fighting - Google Patents
Dual-purpose system for refrigeration and fire fighting Download PDFInfo
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- CN112902485A CN112902485A CN202110123057.0A CN202110123057A CN112902485A CN 112902485 A CN112902485 A CN 112902485A CN 202110123057 A CN202110123057 A CN 202110123057A CN 112902485 A CN112902485 A CN 112902485A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The present disclosure relates to a dual-purpose system for refrigeration and fire protection, comprising a refrigeration assembly, a delivery duct, an air cooler, a nozzle, a first valve and a second valve; the refrigeration component is connected with the conveying pipeline and is used for outputting a refrigerant to the conveying pipeline; the conveying pipeline is respectively communicated with the air cooler and the nozzle; the first valve is arranged at the front end of the air cooler, and the second valve is arranged at the front end of the nozzle. The refrigeration system has the advantages that the functions of the refrigeration system are expanded, the setting cost can be effectively reduced, the occupied space is reduced, and the refrigeration system can be well applied to occasions with narrow available space, such as fishing boats.
Description
Technical Field
The disclosure relates to the technical field of refrigeration systems, in particular to a refrigeration and fire fighting dual-purpose system.
Background
In scenes such as a refrigeration house, a fishing boat, a power distribution room, a communication machine room and the like, a refrigeration system is required to be arranged for refrigerating and cooling, and meanwhile, fire fighting equipment such as a fire water tank is generally required to be configured in the scenes so as to guarantee fire fighting safety. Refrigerating system among the prior art and fire-fighting equipment separately set up usually, can increase equipment cost on the one hand like this for required with high costs when setting up refrigerating system and fire-fighting equipment respectively, on the other hand, need great occupation space when refrigerating system and fire-fighting equipment separately set up, can not be good be suitable for in available space narrow and small scenes such as fishing boat, have certain setting degree of difficulty.
Disclosure of Invention
In order to solve the problems of the prior art, the present disclosure aims to provide a dual-purpose system for refrigeration and fire protection. The refrigeration system has the advantages that the functions of the refrigeration system are expanded, the setting cost can be effectively reduced, the occupied space is reduced, and the refrigeration system can be well applied to occasions with narrow available space, such as fishing boats.
The dual-purpose system for refrigeration and fire fighting comprises a refrigeration assembly, a conveying pipeline, an air cooler, a nozzle, a first valve and a second valve; the refrigeration component is connected with the conveying pipeline and is used for outputting a refrigerant to the conveying pipeline; the conveying pipeline is respectively communicated with the air cooler and the nozzle; the first valve is arranged at the front end of the air cooler, and the second valve is arranged at the front end of the nozzle;
in the cooling mode, the first valve is opened, the second valve is closed, the cooling assembly outputs refrigerant to the conveying pipeline, the refrigerant flows into the air cooler through the first valve, and the air cooler outputs cold air for cooling;
in the fire fighting mode, the first valve is closed, the second valve is opened, the refrigeration assembly outputs refrigerant to the delivery pipe, the refrigerant flows through the second valve into the nozzle, and the nozzle sprays the refrigerant outwards to extinguish fire.
Preferably, the dual-purpose system for refrigeration and fire protection further comprises a controller; the first valve and the second valve are both electrically operated valves; and the signal output end of the controller is electrically connected with the signal input ends of the air cooler, the first valve and the second valve respectively.
Preferably, the dual-purpose system for refrigeration and fire protection further comprises a fire sensing assembly, the fire sensing assembly comprises a temperature sensor and/or a smoke sensor, a signal output end of the fire sensing assembly is electrically connected with a signal input end of the controller, and the controller controls the operation of the air cooler and the opening and closing of the first valve and the second valve according to an input signal of the fire sensing assembly.
Preferably, the dual-purpose system for refrigeration and fire fighting further comprises a timer, wherein the timer is in signal connection with the controller for timing;
and the controller controls the second valve to be opened after receiving a certain delay of the input signal of the fire sensing assembly.
Preferably, the dual-purpose system for refrigeration and fire protection further comprises a safety valve and a pressure sensor, the safety valve is an electric valve, the safety valve is arranged in the refrigeration assembly and used for discharging refrigerant outwards for pressure relief, and the pressure sensor is arranged between the nozzle and the second valve;
and the signal output end of the pressure sensor is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the signal input end of the safety valve.
Preferably, the dual-purpose system for refrigeration and fire fighting further comprises a pre-alarming device, a discharge alarming device and a leakage alarming device;
the signal output end of the controller is respectively and electrically connected with the signal input ends of the pre-alarming device, the release alarming device and the leakage alarming device;
the controller controls the pre-alarming device to start when receiving the input signal of the fire sensing assembly;
the controller controls the release alarm device to start when controlling the second valve to be opened;
and the controller controls the leakage alarm device to start when the detection pressure of the pressure sensor is lower than a preset threshold value.
Preferably, the pre-warning device, the discharge warning device, the leakage warning device comprise an acoustic alarm and/or an optical alarm.
Preferably, the refrigeration assembly comprises a piston unit, a compressor unit, a condenser, an evaporator, a liquid storage device, a circulating barrel and a liquid supply pump;
the piston unit, the compressor unit, the condenser, the evaporator, the liquid storage device, the circulation barrel and the liquid supply pump are sequentially communicated, the liquid supply pump is communicated with the conveying pipeline, and a liquid return pipe of the air cooler is communicated with the circulation barrel to form refrigerant flowing circulation.
Preferably, the refrigeration assembly further comprises a heat preservation unit, and the heat preservation unit is communicated with the circulation barrel and used for maintaining the temperature of the refrigerant.
Preferably, the refrigerant used is carbon dioxide.
The utility model discloses a dual-purpose system of refrigeration and fire control, its advantage lies in:
1. the dual-purpose system utilizes the low-temperature fire extinguishable characteristic of the refrigerant, the refrigeration assembly is communicated with the nozzle through the conveying pipeline, the flow direction of the refrigerant is controlled through the first valve and the second valve, and then the working mode of the dual-purpose system is controlled. When being in under the normal condition refrigeration mode, the refrigerant of refrigeration subassembly output flows through first valve and flows into the air-cooler in, and the air-cooler is blown the air and is formed the air current, and the air current forms the cold air current with the refrigerant heat transfer in the air-cooler coil pipe, makes the air-cooler outwards export cold wind and realizes refrigerating. When a fire disaster phenomenon occurs in the environment, the dual-purpose system is controlled to enter a fire-fighting mode, the first valve is closed, the second valve is opened, the refrigerant output by the refrigeration assembly flows into the nozzle through the second valve, and the refrigerant is sprayed out of the environment through the nozzle to extinguish fire. This openly communicates refrigeration subassembly and nozzle for refrigerating system can outwards spout the refrigerant and put out a fire, has expanded refrigerating system's function, has refrigeration and fire control dual-purpose, and in some scenes, the fire-fighting equipment quantity that reducible required setting or need not additionally to set up the fire-fighting equipment, can effectively reduce the cost of setting up of fire-fighting equipment, reduces occupation space, can be good be applicable to in the scene that available space is narrow and small such as fishing boat.
2. The operation of air-cooler, first valve and second valve is controlled through setting up the controller, can realize the electric control of air-cooler, first valve and second valve, makes dual-purpose system's control is more intelligent.
3. Through setting up conflagration response subassemblies such as temperature sensor and smoke transducer and come the real-time supervision environment, when the conflagration phenomena such as high temperature, smog appear in the environment, conflagration response subassembly output inputs conflagration sensing signal to the controller, and controller control air-cooler and first valve are closed, make the second valve open, through the outside blowout refrigerant of nozzle. Through above-mentioned structure, can the auto-induction conflagration phenomenon to automatic control nozzle outwards spouts the refrigerant when the conflagration phenomenon appears, realizes the auto-induction and the fire control of conflagration and puts out a fire, makes dual-purpose system is more intelligent, and the security is higher.
4. The timer is used for timing and outputting timing signals to the controller, so that the controller can control the second valve to be opened after receiving certain delay of the input signals of the fire sensing assembly, the nozzle is enabled to delay for a certain time to spray the refrigerant, the time delayed by the nozzle can be used for operators to evacuate from a fire protection area in time, and the refrigerant is prevented from being sprayed to a human body to cause damage to the human body.
5. Through setting up relief valve and pressure sensor, pressure sensor is used for the pipeline pressure of response nozzle front end, and when the excessive pressure phenomenon that appears of pipeline pressure because factors such as conflagration lead to, the controller in time controls the relief valve and opens and outwards discharges the refrigerant and carry out the pressure release, avoids dual-purpose system explodes because of the excessive pressure, makes dual-purpose system's security is higher.
6. Through setting up alarm device in advance, releasing alarm device and revealing alarm device, alarm device in advance starts when receiving the input signal of fire sensing subassembly, can in time send the police dispatch newspaper to relevant personnel, and the suggestion relevant personnel appear the conflagration phenomenon, make relevant personnel withdraw the regional and relevant processing of conflagration fast. The discharge alarm device can be started to give an alarm when the dual-purpose system starts to spray the refrigerant, and related personnel can be effectively prompted. The leakage alarm device can start alarm when the pipeline leaks to prompt related personnel to maintain and repair the pipeline, so that the dual-purpose system can find out leakage faults in time.
7. The pre-alarming device, the releasing alarming device and the leakage alarming device can be selected from an acoustic alarm and an optical alarm, such as a buzzer, a warning light and the like, and can play an effective alarming role.
8. The refrigeration assembly comprises a piston unit, a compressor unit, a condenser, an evaporator, a liquid storage device, a circulating barrel and a liquid supply pump, so that the refrigeration assembly can form stable refrigerant flowing circulation and can stably output low-temperature refrigerant.
9. The refrigeration assembly further comprises a heat preservation unit, and the heat preservation unit is used for maintaining the temperature of the refrigerant when the dual-purpose system is in a standby state, further maintaining the internal pressure of the dual-purpose system, and enabling the stability of the dual-purpose system to be better.
10. The refrigerant is carbon dioxide, the carbon dioxide has the advantages of high refrigeration efficiency, large refrigerating capacity per unit volume, good heat exchange performance and environmental protection, the carbon dioxide is gasified, has large expansion volume, can be cooled while isolating air, does not leave traces, is non-conductive and does not pollute objects after fire extinguishment, and is a common fire extinguishing substance, so the carbon dioxide is selected as the refrigerant of the dual-purpose system, can play a good role in carrying cold and exchanging heat in a refrigeration mode, can play a good role in inflaming retarding and extinguishing fire in a fire fighting mode, and has good applicability.
Drawings
FIG. 1 is a schematic diagram of a refrigeration assembly according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a fire fighting portion of a dual-purpose system for refrigeration and fire protection according to an embodiment of the disclosure.
Description of reference numerals: 10-a refrigeration component, 101-a piston unit, 102-a compressor unit, 103-a condenser, 104-an evaporator, 105-a liquid storage device, 106-a circulating barrel, 107-a liquid supply pump, 108-a heat preservation unit, 20-a conveying pipeline, 30-an air cooler, 40-a nozzle, 50-a first valve, 60-a second valve, 70-a controller and 80-a pressure sensor.
Detailed Description
As shown in fig. 1 and 2, the dual-purpose system for refrigeration and fire protection according to the present disclosure includes a refrigeration assembly 10, a delivery duct 20, an air cooler 30, a nozzle 40, a first valve 50, and a second valve 60. The refrigeration assembly 10 is in communication with the delivery conduit 20 for delivering a low temperature refrigerant to the delivery conduit 20. The delivery duct 20 is respectively communicated with the air cooler 30 and the nozzle 40, the first valve 50 is arranged at the front end of the air cooler 30, the second valve 60 is arranged at the front end of the nozzle 40, and the flow direction of the refrigerant is further controlled by controlling the opening and closing of the first valve 50 and the second valve 60.
In the normal cooling mode, the first valve 50 is opened, the second valve 60 is closed, the cooling module 10 outputs a refrigerant to the conveying pipeline 20, the refrigerant flows through the first valve 50 and flows into the air cooler 30, and the air cooler 30 outputs cold air outwards for cooling.
When a fire occurs in the environment, the first valve 50 is closed, the second valve 60 is opened, the refrigeration assembly 10 outputs refrigerant to the delivery pipe 20, the refrigerant flows into the nozzle 40 through the second valve 60, and the nozzle 40 sprays the refrigerant outwards to extinguish the fire.
This disclosure dual-purpose system can be applied to places such as fishing boat, freezer, archives storehouse, change distribution room, communication computer lab, hangar, garage, central control room, power station, flooding oil groove, and air-cooler 30 installs in the position that needs cold such as quick-freeze storehouse, quick-freeze tunnel, refrigerator during the installation, and refrigeration component 10 sets up near air-cooler 30, and nozzle 40 sets up in fire control protection zone, through pipeline 20 intercommunication between refrigeration component 10 and the nozzle 40.
The present disclosure utilizes the low temperature fire suppressible characteristic of the refrigerant to communicate the refrigeration assembly 10 with the nozzle 40 through the delivery conduit 20 and control the flow direction of the refrigerant through the first valve 50 and the second valve 60 to control the operation mode of the dual-purpose system. When the refrigeration device is in a normal state refrigeration mode, the refrigerant output by the refrigeration component 10 flows into the air cooler 30 through the first valve 50, the air is blown by the air cooler 30 to form an air flow, the air flow exchanges heat with the refrigerant in the coil of the air cooler 30 to form a cold air flow, and the air cooler 30 outputs cold air outwards to realize refrigeration. When a fire occurs in the environment, the dual-purpose system is controlled to enter a fire-fighting mode, the first valve 50 is closed, the second valve 60 is opened, the refrigerant output by the refrigeration assembly 10 flows into the nozzle 40 through the second valve 60, and the refrigerant is sprayed out of the environment through the nozzle 40 to extinguish the fire. This is disclosed with refrigeration subassembly 10 and nozzle 40 intercommunication for refrigeration system can outwards spout the refrigerant and put out a fire, has expanded refrigeration system's function, has refrigeration and fire control dual-purpose, and in some scenes, the reducible fire-fighting equipment quantity that needs set up or need not additionally to set up the fire-fighting equipment, can effectively reduce the cost of setting up of fire-fighting equipment, reduces occupation space, can be good be applicable to in the scene that available space is narrow and small such as fishing boat.
Further, in this embodiment, the dual-purpose system further includes a controller 70, the first valve 50 and the second valve 60 are both electrically operated valves, and signal output terminals of the controller 70 are electrically connected to signal input terminals of the air cooler 30 and the first valve 50 and the second valve 60, respectively. In some feasible embodiments, the controller 70 may be a single chip, a PLC or other control elements with a logic operation function, the controller 70 and its peripheral circuits are usually integrated into a control cabinet, a plurality of control buttons are disposed on the control cabinet, the control buttons are electrically connected to the signal input end of the controller 70 for inputting control instructions to the controller 70, according to different functions, a "refrigeration mode button", a "fire mode button", a "start button", an "emergency stop button", and the like may be respectively disposed, and the control cabinet is usually disposed in an environment such as a cab, a control room, and the like, so as to be conveniently operated and controlled by an operator. Through the structure, the electric control of starting and stopping the air cooler 30 can be realized, the electric control of opening and closing the first valve 50 and the second valve 60 can also be realized, so that an operator can remotely control the components, and further remotely control the operation of the dual-purpose system, so that the control of the dual-purpose system is more intelligent and more convenient to control.
Further, in this embodiment, the dual-purpose system further includes a fire sensing component (not shown), the fire sensing component includes a temperature sensor and/or a smoke sensor, a signal output terminal of the fire sensing component is electrically connected to a signal input terminal of the controller 70, and the controller 70 controls the operation of the cooling fan 30 and the opening and closing of the first valve 50 and the second valve 60 according to an input signal of the fire sensing component. Usually, infrared non-contact temperature sensor is chooseed for use to temperature sensor, like OMEGA company's TJ36-CAXL temperature sensor, this temperature sensor can accurate response ambient temperature, can set up a plurality of temperature sensor in corresponding position according to regional topographic structure, area, the ignition point position etc. of fire control protection when setting up to real-time, comprehensive monitoring fire control protection regional ambient temperature. The NBES0307 smoke sensor of Schneider can be selected as the smoke sensor, the smoke sensor can sense the smoke concentration in the environment, and then generates corresponding sensing signals when smoke is generated in the combustion process when a fire disaster happens, and the smoke sensor is also arranged according to the topographic structure, the area, the position of an inflammable point and the like of a fire protection area, so that the smoke concentration of the fire protection area can be monitored comprehensively in real time. In some preferred embodiments, the temperature sensor and the smoke sensor are generally selected and combined together, so that the environment of a fire protection area can be monitored more comprehensively, and the fire phenomenon in the environment can be sensed in time, so that the safety of the dual-purpose system is improved. The fire sensing assembly outputs a sensing signal to the controller 70 when a fire phenomenon occurs in the environment, and the controller 70 controls the cooling fan 30 to stop operating and controls the first valve 50 to be closed and the second valve 60 to be opened after receiving the sensing signal, so that the refrigerant is sprayed out through the nozzle 40 to extinguish a fire. In some feasible embodiments, the controller 70 can further communicate with other external devices, such as a main circuit switch of a fire protection area, an electric fire door, and the like, when the fire sensing component generates a sensing signal, the controller 70 controls the main circuit switch to be powered off at the same time, so that the circuit of the fire protection area is powered off, the circuit and each electric device are effectively protected, meanwhile, the phenomena of circuit short circuit and the like can be prevented from further aggravating the fire, the controller 70 can also control the electric fire door to be closed, the fire protection area can be timely isolated, and the fire can be prevented from further spreading. Through the structure, the fire phenomenon can be automatically sensed, the automatic control nozzle 40 sprays the refrigerant outwards when the fire phenomenon occurs, the automatic sensing and fire fighting of the fire are realized, and the dual-purpose system is more intelligent and higher in safety.
Further, in this embodiment, the dual-purpose system further includes a timer, the timer is in signal connection with the controller 70 for timing, and inputs a timing signal to the controller 70, and the controller 70 controls the second valve 60 to open after a certain delay time from receiving the input signal of the fire sensing assembly. Specifically, if the controller 70 controls the first valve 50 to close and the second valve 60 to open to spray the refrigerant from the nozzle 40 immediately after receiving the input signal from the fire sensing assembly, the operator in the fire protection area may have no time to evacuate the fire protection area, and the refrigerant sprayed from the nozzle 40 may be sprayed onto the operator. In addition, the fire sensing assembly may have a false alarm phenomenon, and when the fire phenomenon does not occur in the fire protection area, the sensing signal is erroneously input to the controller 70, in this case, the nozzle 40 sprays the refrigerant outwards, which may affect the normal use of the fire protection area, on the one hand, cause the waste of the refrigerant, and may also affect the subsequent normal refrigeration use of the refrigeration assembly 10. In order to solve the above problem, in the embodiment, a timer is provided, and the timer is in signal connection with the controller 70, and when the controller 70 receives a sensing signal of the fire sensing component, a start signal is generated to the timer to start timing of the timer, and when the timing reaches a preset time, for example, 60s, the timer sends a timing signal to the controller 70, and the controller 70 controls the first valve 50 and the second valve 60 to make the nozzle 40 spray the refrigerant outwards. By setting the timer, the controller 70 can control the nozzle 40 to spray the refrigerant after receiving a certain delay of the sensing signal, so that on one hand, a certain time can be reserved before the refrigerant is sprayed to enable operators to evacuate from a fire protection area in time, and the refrigerant is prevented from being sprayed onto a human body to cause harm to the human body; on the other hand, the reserved time can be used for an operator to confirm whether a fire disaster phenomenon really occurs in a fire protection area, the emergency stop of the dual-purpose system can be controlled in time when the fire sensing assembly gives a false alarm, the nozzle 40 is prevented from spraying the refrigerant outwards, and the influence of the false alarm on the normal refrigeration use of the refrigeration assembly 10 is avoided.
Further, in this embodiment, the dual-purpose system further includes a safety valve and a pressure sensor 80, the safety valve is an electric valve, the safety valve is disposed in the refrigeration assembly 10 and used for discharging the refrigerant to the outside for pressure relief, and is typically disposed at the liquid reservoir 105 and the circulation barrel 106, the pressure sensor 80 is a P7620a1012 type pipeline pressure sensor of the honeywell company, the pressure sensor 80 is disposed between the nozzle 40 and the second valve 60, and a detection end of the pressure sensor extends into the pipeline to detect the internal pressure of the pipeline in real time. The signal output end of the pressure sensor 80 is electrically connected with the signal input end of the safety valve, the pressure sensor 80 is used for detecting the internal pressure of the pipeline in real time, converting the real-time pressure value into a corresponding electric signal and inputting the electric signal into the controller 70, and the controller 70 converts the electric signal to obtain a corresponding real-time pressure value. A maximum pressure threshold is preset in the controller 70, the controller 70 compares the real-time pressure value with the preset maximum pressure threshold, when the real-time pressure value is greater than or equal to the preset maximum pressure threshold, the controller 70 outputs a control signal to open the safety valve, and the refrigerant is discharged outwards through the safety valve to be decompressed, so that the internal pressure of the pipeline is reduced, and overpressure is prevented. The pressure sensor 80 is used for sensing the pressure of the pipeline at the front end of the nozzle 40, and when the pipeline pressure is too high due to fire and other factors, and an overpressure phenomenon occurs, the controller 70 timely controls the safety valve to open to discharge the refrigerant outwards for pressure relief, so that the dual-purpose system is prevented from being exploded due to overpressure, and the safety of the dual-purpose system is higher.
Further, in this embodiment, the dual-purpose system further includes a pre-alarm device (not shown), a release alarm device (not shown), and a leakage alarm device (not shown).
The signal output end of the controller 70 is electrically connected with the signal input ends of the pre-alarm device, the release alarm device and the leakage alarm device respectively, and is used for controlling the start and stop of the three alarm devices.
Specifically, when receiving the input signal of the fire sensing assembly, the controller 70 outputs a control signal to control the pre-alarm device to start, so as to send an alarm to the relevant personnel in time, prompt the relevant personnel of the fire phenomenon, and enable the relevant personnel to evacuate the fire area quickly and perform relevant processing.
When the controller 70 controls the second valve 60 to open, i.e. when the refrigerant starts to be sprayed, the discharge alarm device is controlled to start to give an alarm, which can effectively prompt relevant personnel.
A lowest pressure threshold value is preset in the controller 70, when the detection pressure of the pressure sensor 80 is lower than the preset lowest pressure threshold value, the controller 70 indicates that the amount of the refrigerant in the dual-purpose system is insufficient at the moment, and a leakage phenomenon possibly exists, at the moment, the controller 70 outputs a control signal to control the leakage alarm device to start an alarm to prompt related personnel to maintain and repair the pipeline, so that the dual-purpose system can be found out in time when a leakage fault occurs.
Furthermore, in this embodiment, the pre-alarm device, the discharge alarm device, and the leakage alarm device all include an audible alarm and/or an optical alarm, the audible alarm may be a buzzer, a siren, or the like, and the optical alarm may be a flashing light or the like, which all may play an effective alarm role.
Further, in this embodiment, the refrigeration assembly 10 specifically includes a piston assembly 101, a compressor assembly 102, a condenser 103, an evaporator 104, an accumulator 105, a circulation tank 106, and a liquid supply pump 107; the piston unit 101, the compressor unit 102, the condenser 103, the evaporator 104, the liquid accumulator 105, the circulation barrel 106 and the liquid supply pump 107 are sequentially communicated, the liquid supply pump 107 is communicated with the conveying pipeline 20 and used for outputting the refrigerant to the conveying pipeline 20, and a liquid return pipe of the air cooler 30 is communicated with the circulation barrel 106 and used for returning liquid, and the components are communicated end to form a refrigerant flowing cycle.
Specifically, the piston assembly 101 and the compressor assembly 102 are components commonly used in refrigeration systems to power the circulation of a refrigerant.
The condenser 103 specifically adopts a water-cooled condenser, and in terms of heat exchange form, a plate heat exchanger, a shell-and-tube heat exchanger or a plate-and-shell heat exchanger can be adopted, the condenser 103 is used as a refrigerant cooler, and the refrigerant is cooled and exchanged in the air cooler 30, then the temperature of the refrigerant rises, and the refrigerant flows back into the condenser 103 to be cooled through water-cooled heat exchange, so that the refrigerant can be recycled.
The evaporator 104 is used for evaporating and gasifying the refrigerant, and mainly aims to reduce the exhaust pressure of the piston unit 101 and avoid the exhaust pressure from being too high, and the liquid supply mode can be dry evaporation or flooded evaporation.
The accumulator 105 and the circulation tub 106 are used to store a refrigerant, and not only provide a necessary refrigerant in a refrigeration mode such as quick freezing and refrigeration, but also provide a sufficient refrigerant for fire extinguishing in a fire fighting mode.
The liquid supply pump 107 is used for providing power for conveying the refrigerant, and the refrigerant is input into the conveying pipeline 20.
The refrigeration assembly 10 with the above structure can form a stable refrigerant flowing circulation and can stably output a low-temperature refrigerant.
Further, in this embodiment, the refrigeration assembly 10 is further provided with a heat preservation unit 108, the heat preservation unit 108 is communicated with the circulation barrel 106, the heat preservation unit 108 is a heat preservation unit 108 commonly used in the refrigeration system, the temperature of the refrigerant is maintained through the refrigeration pump and the heat pump, the internal pressure of the dual-purpose system is further kept, and the stability of the dual-purpose system is better.
Furthermore, in the embodiment, the refrigerant is carbon dioxide, which has the advantages of high refrigeration efficiency, large refrigerating capacity per unit volume, good heat exchange performance and environmental protection, and meanwhile, the carbon dioxide is gasified, has large expansion volume, can be cooled while isolating air, does not leave traces, is non-conductive and does not pollute objects after fire extinguishment, and is a common fire extinguishing substance, so that the carbon dioxide is selected as the refrigerant of the dual-purpose system, can play a good cold-carrying and heat-exchanging role in a refrigeration mode, can play a good flame-retardant and fire-extinguishing role in a fire-fighting mode, and has good applicability.
The dual-purpose system of the present disclosure will be fully described below in conjunction with the application scenario of a fishing boat.
In the application scene of fishing boat, freezer department needs to set up refrigerating system, needs to set up fire-fighting equipment in cargo hold department. When the dual-purpose system disclosed by the disclosure is used, the air cooler 30 is arranged in the cold storage, the refrigeration assembly 10 is arranged outside the cold storage, and the liquid supply pump 107 is communicated with the air cooler 30 through the conveying pipeline 20. Meanwhile, according to the specific structure of the cargo hold, a plurality of temperature sensors and smoke sensors are arranged on the top wall of the cargo hold, a plurality of nozzles 40 are uniformly distributed on the top wall, and the number of the nozzles 40 above the flammable point can be increased. The first valve 50 and the second valve 60 are provided at the front ends of the air cooler 30 and the nozzle 40, respectively, while the controller 70, the timer, the safety valve, the pressure sensor 80, and the like are provided as described above. A central control cabinet integrating the controller 70 is provided in the cabin of the fishing vessel. After confirming that the connections of the pipes and the circuits are normal, an appropriate amount of liquid carbon dioxide is introduced into the accumulator 105 as a refrigerant.
Under the normal refrigeration mode, each part is normally opened, first valve 50 is opened, second valve 60 is closed, microthermal liquid carbon dioxide is inputed into pipeline 20 by feed pump 107, carbon dioxide flows through first valve 50 and then during the heat transfer coil pipe of air-cooler 30, air-cooler 30 work is blown simultaneously and is formed the air current, the air current forms the cold air current with the refrigerant heat transfer in the air-cooler 30 coil pipe, make air-cooler 30 outwards export cold wind and realize the refrigeration, make the freezer temperature reduce.
Meanwhile, the temperature sensor and the smoke sensor monitor the environment in the cargo compartment in real time, when a fire occurs in the cargo compartment, the temperature in the cargo compartment rises, the temperature sensor generates a corresponding sensing signal, the smoke sensor generates a corresponding sensing signal by burning the generated smoke, the temperature sensor and the smoke sensor input the sensing signal into the controller 70, and the controller 70 starts the timer and controls the pre-alarm device to give an alarm. At the moment, an operator can timely know that the fire sensing assembly generates a sensing signal, the dual-purpose system is about to spray the refrigerant, the operator can timely determine whether a fire phenomenon really exists, if so, the operator can timely evacuate the cargo compartment and carry out corresponding treatment, and if not, the operator can prevent the nozzle 40 from spraying the refrigerant through the emergency stop button.
If a fire accident does occur, after the timer timing 60s is finished, a timing signal is output to the controller 70, the controller 70 controls the first valve 50 to be closed, the second valve 60 to be opened, the nozzle 40 starts to spray the refrigerant into the cargo compartment, and simultaneously controls the discharge alarm device to be started to send out an alarm, controls the main circuit switch of the cargo compartment to be closed, cuts off the power of the cargo compartment, and controls the electric fireproof door of the cargo compartment to be closed so as to isolate the fire scene. After the refrigerant is continuously sprayed for a period of time, the second valve 60 is controlled to close by the controller 70 after the completion of fire extinguishing is confirmed, and the spray nozzle 40 stops spraying the refrigerant.
The refrigeration system has the advantages that the functions of the refrigeration system are expanded, the setting cost can be effectively reduced, the occupied space is reduced, and the refrigeration system can be well applied to occasions with narrow available space, such as fishing boats.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the present disclosure, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present disclosure.
Claims (10)
1. A dual-purpose system for refrigeration and fire fighting is characterized by comprising a refrigeration assembly, a conveying pipeline, an air cooler, a nozzle, a first valve and a second valve; the refrigeration component is connected with the conveying pipeline and is used for outputting a refrigerant to the conveying pipeline; the conveying pipeline is respectively communicated with the air cooler and the nozzle; the first valve is arranged at the front end of the air cooler, and the second valve is arranged at the front end of the nozzle;
in the cooling mode, the first valve is opened, the second valve is closed, the cooling assembly outputs refrigerant to the conveying pipeline, the refrigerant flows into the air cooler through the first valve, and the air cooler outputs cold air for cooling;
in the fire fighting mode, the first valve is closed, the second valve is opened, the refrigeration assembly outputs refrigerant to the delivery pipe, the refrigerant flows through the second valve into the nozzle, and the nozzle sprays the refrigerant outwards to extinguish fire.
2. The dual use system of claim 1, further comprising a controller; the first valve and the second valve are both electrically operated valves; and the signal output end of the controller is electrically connected with the signal input ends of the air cooler, the first valve and the second valve respectively.
3. The dual-purpose system for refrigerating and fire fighting according to claim 2, further comprising a fire sensing assembly, wherein the fire sensing assembly comprises a temperature sensor and/or a smoke sensor, a signal output end of the fire sensing assembly is electrically connected with a signal input end of the controller, and the controller controls the operation of the air cooler and the opening and closing of the first valve and the second valve according to an input signal of the fire sensing assembly.
4. The dual purpose system of claim 3, further comprising a timer in signal communication with the controller for timing;
and the controller controls the second valve to be opened after receiving a certain delay of the input signal of the fire sensing assembly.
5. The dual purpose system of claim 4, further comprising a safety valve and a pressure sensor, wherein the safety valve is an electric valve and is disposed in the refrigeration assembly for discharging refrigerant to the outside for pressure relief, and the pressure sensor is disposed between the nozzle and the second valve;
and the signal output end of the pressure sensor is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the signal input end of the safety valve.
6. The dual use system of claim 5, further comprising a pre-warning device, a discharge warning device, and a leak warning device;
the signal output end of the controller is respectively and electrically connected with the signal input ends of the pre-alarming device, the release alarming device and the leakage alarming device;
the controller controls the pre-alarming device to start when receiving the input signal of the fire sensing assembly;
the controller controls the release alarm device to start when controlling the second valve to be opened;
and the controller controls the leakage alarm device to start when the detection pressure of the pressure sensor is lower than a preset threshold value.
7. The dual purpose system of claim 6, wherein the pre-warning device, the discharge warning device, and the leak warning device comprise an audible alarm and/or a light alarm.
8. The dual-purpose system for refrigeration and fire fighting of claim 1, wherein the refrigeration assembly includes a piston unit, a compressor unit, a condenser, an evaporator, a reservoir, a circulation tank, and a fluid supply pump;
the piston unit, the compressor unit, the condenser, the evaporator, the liquid storage device, the circulation barrel and the liquid supply pump are sequentially communicated, the liquid supply pump is communicated with the conveying pipeline, and a liquid return pipe of the air cooler is communicated with the circulation barrel to form refrigerant flowing circulation.
9. The dual purpose system of claim 8, wherein the refrigeration assembly further comprises a thermal unit in communication with the circulation tank for maintaining a temperature of the refrigerant.
10. A dual use system as claimed in any one of claims 1 to 9, wherein the refrigerant used is carbon dioxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110123057.0A CN112902485A (en) | 2021-01-29 | 2021-01-29 | Dual-purpose system for refrigeration and fire fighting |
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| CN202110123057.0A CN112902485A (en) | 2021-01-29 | 2021-01-29 | Dual-purpose system for refrigeration and fire fighting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577603A (en) * | 2021-07-29 | 2021-11-02 | 广东电网有限责任公司 | Fire-fighting and cooling integrated system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203964432U (en) * | 2014-07-25 | 2014-11-26 | 北京市京科伦冷冻设备有限公司 | A kind of carbon dioxide refrigeration apparatus structure |
| CN108066926A (en) * | 2016-11-14 | 2018-05-25 | 上海陆誉工程设计管理有限公司 | Automatic fire extinguishing system and its self-extinguishing method |
| CN110030755A (en) * | 2019-05-23 | 2019-07-19 | 苏州奥德机械有限公司 | A kind of battery pack carbon dioxide refrigerating system |
| CN110553341A (en) * | 2019-08-12 | 2019-12-10 | 珠海格力电器股份有限公司 | method for enabling refrigeration system to achieve fire extinguishing function, refrigeration system and air conditioning system |
| CN111609580A (en) * | 2020-06-17 | 2020-09-01 | 天津大学 | Cabinet cooling system and method using carbon dioxide as working medium |
-
2021
- 2021-01-29 CN CN202110123057.0A patent/CN112902485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203964432U (en) * | 2014-07-25 | 2014-11-26 | 北京市京科伦冷冻设备有限公司 | A kind of carbon dioxide refrigeration apparatus structure |
| CN108066926A (en) * | 2016-11-14 | 2018-05-25 | 上海陆誉工程设计管理有限公司 | Automatic fire extinguishing system and its self-extinguishing method |
| CN110030755A (en) * | 2019-05-23 | 2019-07-19 | 苏州奥德机械有限公司 | A kind of battery pack carbon dioxide refrigerating system |
| CN110553341A (en) * | 2019-08-12 | 2019-12-10 | 珠海格力电器股份有限公司 | method for enabling refrigeration system to achieve fire extinguishing function, refrigeration system and air conditioning system |
| CN111609580A (en) * | 2020-06-17 | 2020-09-01 | 天津大学 | Cabinet cooling system and method using carbon dioxide as working medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577603A (en) * | 2021-07-29 | 2021-11-02 | 广东电网有限责任公司 | Fire-fighting and cooling integrated system and control method thereof |
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