CN205090563U - Air conditioning system with refrigerant leaks security alarm device - Google Patents
Air conditioning system with refrigerant leaks security alarm device Download PDFInfo
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- CN205090563U CN205090563U CN201520856226.1U CN201520856226U CN205090563U CN 205090563 U CN205090563 U CN 205090563U CN 201520856226 U CN201520856226 U CN 201520856226U CN 205090563 U CN205090563 U CN 205090563U
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Abstract
The utility model provides an air conditioning system with refrigerant leaks security alarm device, includes air conditioning equipment, air conditioning equipment includes the indoor set, the indoor set includes air intake, air outlet, evaporimeter, air -conditioner fan and the air conditioning cabinets body, internal at least one compressor that is provided with of air conditioning cabinets, at least one compressor is connected with the control source, air conditioning system includes still that the refrigerant reveals security alarm device, the refrigerant reveal security alarm device include warning centralized control ware and with the audible -visual annunciator that warning centralized control ware is connected, strong exhaust system, refrigerant concentration detection appearance, and automatic fire extinguishing system, security alarm device is through carrying out real -time supervision at the internal detector that sets up of air conditioning cabinets, if detected the gas leakage and reached when setting up the concentration value, strong exhaust system automatic start will leak the gaseous row of refrigerant to outdoor, if the internal condition of a fire that appears of air conditioning cabinets, fire extinguishing systems's automation is hung the fire extinguisher and can be about to the fire certainly and put out.
Description
Technical field
The utility model relates to a kind of air-conditioning system, particularly a kind of air-conditioning system with leakage of refrigerant safety alarm device.
Background technology
At present, mostly one deck movable floor is all installed in IDC machine room, what have part air-conditioning to adopt in machine room is that the air convection of upper entering and lower leaving carries out lowering the temperature, namely Indoor Thermal air sucks above air-conditioning, low temperature cold air is become after evaporator heat exchange, with after under machine room movable floor sent into by blower fan, make all to be full of cold air below the flaggy actively in whole room, last cold air is past blowing up bottom calculator room equipment cabinet, thus reaches the object to calculator room equipment and building environment radiating and cooling.
But, in air-conditioning system, air-conditioning cabinet is inner containing circuit part and refrigeration system pipeline high-pressure section because of it, joint is more, in normal conditions, the probability that air-conditioning refrigerant occurs to leak is very little, but produce vibrations along with when the continuous growth of air-conditioning service life, compressor work long hours, the copper pipe of refrigeration system pipeline is all likely caused to produce the situation such as crack, joint looseness, thus produce refrigrant leakage problem, if when not processing in time after refrigrant leakage, larger potential safety hazard will be produced.Therefore, improving to eliminate above-mentioned potential safety hazard to air-conditioning system is those skilled in the art's problem demanding prompt solutions.
Utility model content
In view of this, for above-mentioned air-conditioning refrigerant leakage problem, the utility model provides a kind of air-conditioning system with leakage of refrigerant safety alarm device.
A kind of air-conditioning system with leakage of refrigerant safety alarm device, comprise air-conditioning equipment, described air-conditioning equipment comprises indoor set, described indoor set comprises air inlet, air outlet, evaporimeter, air-conditioning draught fan and air-conditioning cabinet, be provided with at least one compressor in described air-conditioning cabinet, at least one compressor described is connected with control power supply.Described air-conditioning system also comprises leakage of refrigerant safety alarm device, the alarm that described safety alarm device comprises warning Centralized Controller and is connected with described warning Centralized Controller, strong-force exhaust system, refrigerant concentration detector, and automatic fire extinguishing system, described refrigerant concentration detector is arranged in described air-conditioning cabinet, described strong-force exhaust system comprises exhaust duct, exhaust blower controller and exhaust blower, described exhaust duct one end is communicated with described air-conditioning cabinet, the other end is communicated to outdoor, described exhaust blower is electrically connected with described exhaust blower controller and is arranged in described exhaust duct, described automatic fire extinguishing system comprises the automatic suspension fire extinguisher be arranged in air-conditioning cabinet, the quantity of described automatic suspension fire extinguisher is identical with the quantity of described compressor.
In one embodiment, the air-conditioning cabinet of described air-conditioning equipment is closed cabinet body, and sealing strip is posted at its crack between a door and its frame place.
In one embodiment, described refrigerant concentration detector is R490 special gas detector.
In one embodiment, described R490 special gas detector is arranged at the bottom of described air-conditioning cabinet.
In one embodiment, described alarm is audible-visual annunciator.
In one embodiment, be provided with contactor in the supply line of described compressor, described safety alarm device comprises the coil be connected with described warning Centralized Controller, and described coil acts on described contactor to disconnect or to connect described supply line.
In one embodiment, described air outlet is communicated with below movable floor, and Indoor Thermal air enters below described movable floor by described air-conditioning draught fan after described air inlet introduces described air-conditioning system heat exchange.
In one embodiment, described exhaust duct is arranged on below described air-conditioning cabinet.
In sum, the utility model provides a kind of air-conditioning system with leakage of refrigerant safety alarm device.This air-conditioning system comprises the safety alarm device mainly for indoor apparatus of air conditioner leakage of refrigerant, described safety alarm device comprises strong-force exhaust system and automatic fire extinguishing system, strong-force exhaust system carries out Real-Time Monitoring by arranging special gas detector in air-conditioning cabinet, if Leakage Gas detected, and when reaching setting concentration value, strong-force exhaust system starts, and utilizes exhaust blower that gas leakage is drained into outdoor; If there is the condition of a fire in air-conditioning cabinet, the automatic suspension fire extinguisher of fire extinguishing system can extinguish the blaze voluntarily.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the air-conditioning system with leakage of refrigerant safety alarm device.
Detailed description of the invention
Before describing the embodiments in more detail, it should be understood that the utility model is not limited to detailed construction in the application hereafter or described in accompanying drawing or arrangement of elements.The utility model can be the embodiment that alternate manner realizes.And, should be appreciated that wording used herein and term are only used as to describe purposes, should being construed as limiting property not explain.Similar wording meant and comprised item listed thereafter, its equivalent and other additional things " comprising " used herein, " comprising ", " having " etc.Particularly, when describing " certain element ", the quantity that the design does not limit this element is one, also can comprise multiple.
As shown in Figure 1, the utility model provides a kind of air-conditioning system with leakage of refrigerant safety alarm device, comprises air-conditioning equipment and leakage of refrigerant safety alarm device.
The indoor set of described air-conditioning equipment comprises air inlet 1a, air outlet 1b, evaporimeter 2, air-conditioning draught fan 4 and air-conditioning cabinet 6, and evaporimeter 2 is arranged at the upper end of described indoor machine of air conditioning unit, and air-conditioning cabinet 6 is arranged at the lower end of described air-conditioning equipment.Air-conditioning draught fan 4, for being introduced in air-conditioning system by Indoor Thermal air, is be arranged between evaporimeter 2 and air-conditioning cabinet 6 in this embodiment.In the present embodiment, described air-conditioning equipment is positioned in an IDC machine room, is provided with one deck movable floor 8 in this IDC machine room, and is placed to a rare machine room electrical equipment rack 10 in machine room.
The cross-ventilated mode of upper entering and lower leaving that what the air-conditioning equipment of the present embodiment adopted is, namely Indoor Thermal air enters from the air inlet 1a of air-conditioning equipment, after evaporator 2, become low temperature cold air after heat exchange, with after to advertise through air-conditioning draught fan 4 and flow out from the air outlet 1b of air-conditioning equipment.
Described air outlet 1b is communicated with below movable floor 8, enter movable floor 8 to make the cold air flowed out from air-conditioning equipment air outlet 1b and be full of below whole movable floor 8, because machine room electrical equipment rack 10 is placed on movable floor 8, cold air below movable floor 8 by movable floor 8 past blowing up bottom machine room electrical equipment rack 10, thus reaches the object to machine room electrical equipment rack 10 radiating and cooling.
Air-conditioning cabinet 6 is independent sealed state, in order to strengthen its sealing, in the present embodiment, sticks on a sealing strip at the crack between a door and its frame place of air-conditioning cabinet 6, in case the cold-producing medium that stopping leak exposes is diffused into outside air-conditioning equipment.
Be provided with at least one compressor in air-conditioning cabinet 6, at least one compressor described connects with control power supply (such as, AC380V power supply), is provided with the contactor that a control power supply is switched on or switched off in this supply line.In the present embodiment, have employed two compressors, be respectively the first compressor 12 and the second compressor 14, first compressor 12 is connected with AC380V power supply with the second compressor 14.
The quantity of compressor also can be one or more, and this will be determined according to the actual refrigeration demand situation in room.The refrigerating capacity that the compressor of different model is corresponding is different.When a compressor can not meet refrigeration demand, can increase by a compressor to reach the demand object of refrigeration.Same model number of compressors is more, and its refrigerating capacity is also larger, but simultaneously, and it is larger that the volume of air-conditioning also can do.The caloric value in room is different, and the refrigerating capacity of needs is also different.So according to the actual requirements, when air-conditioning is matched, the air-conditioning of appropriate refrigeration amount should be selected to avoid waste.
Described safety alarm device comprises the warning Centralized Controller 16 connected with power supply (such as, AC220V power supply), the alarm 18 be electrically connected with warning Centralized Controller 16, acts on contactor to disconnect the coil 20 of air-conditioning main power source, strong-force exhaust system, refrigerant concentration detector 24 and automatic fire extinguishing system.In the present embodiment, what refrigerant concentration detector 24 adopted is R490 special gas detector 24.R490 is the patent system cryogen that the applicant develops, and it is disclosed in No. ZL201410125437.8, Chinese invention patent.Because R490 is heavier than air, therefore R490 special gas detector 24 needs to be arranged on below leakage point, and in an illustrated embodiment, R490 special gas detector 24 is arranged at the bottom of air-conditioning cabinet 6; What alarm 18 adopted is audible-visual annunciator 18.
It should be noted that in other embodiments, refrigerant concentration detector 24 and alarm 18 also can select other kinds, and certainly, the position that refrigerant concentration detector 24 is installed is according to selecting the kind of refrigerant concentration detector 24 to decide.
The exhaust blower 28 that strong-force exhaust system comprises exhaust blower controller 22 and is connected with exhaust blower controller 22, exhaust blower 28 controls by exhaust blower controller 22.Air-conditioning cabinet 6 has exhaust duct 26, and one end of exhaust duct 26 is communicated with air-conditioning cabinet 6, and the other end of exhaust duct 26 directly leads to outdoor, and exhaust blower 28 is arranged in exhaust duct 26.Be arranged on exhaust duct 26 near outdoor one end in this embodiment.In the embodiment shown in fig. 1, exhaust duct 26 is arranged on below the movable floor 8 under air-conditioning cabinet 6.Certainly, in other embodiments, according to actual needs, exhaust duct 26 also can be arranged on other position.
Described automatic fire extinguishing system comprises the automatic suspension fire extinguisher 30 be arranged in air-conditioning cabinet 6.Under the compressor of air-conditioning equipment is often operated in the environment of HTHP height electric current, if having leakage of refrigerant and appear in air-conditioning cabinet 6, and when meeting ignition condition, then easily produce naked light.The cold-producing medium R490 that this air-conditioning system adopts has certain inflammability, therefore, for the sake of security, needs to carry out man-to-man fire extinguisher installation to compressor region separately, so, even if occur that the condition of a fire also can be put out immediately, drastically increases security.Be provided with two compressors in the present embodiment, therefore, automatic suspension fire extinguisher 30 also arranges two.
Air-conditioning equipment operationally, if the compressor in air-conditioning cabinet 6 leaks, R490 special gas detector 24 in air-conditioning cabinet 6 detects the leakage of gas and produces alarm signal and pass to warning Centralized Controller 16, warning Centralized Controller 16 after receiving alarm signal immediately control coil 20 make it act on contactor to disconnect air-conditioning main power source, and control alarm 18 alarm call, meanwhile, exhaust blower controller 22 controls exhaust blower 28 and starts, and forcibly the gas leakage in air-conditioning cabinet 6 is discharged to outdoor by exhaust duct 26.
If produce naked light burning in air-conditioning cabinet 6, now the condition of a fire will light the lead-in wire of the automatic suspension fire extinguisher 30 installed in advance in air-conditioning cabinet 6, and trigger the miniature destructor of automatic suspension fire extinguisher 30 inside, extinguishing chemical inside automatic suspension fire extinguisher 30 understands undergoes rapid expansion and explosion, extinguishing chemical can fill completely whole air-conditioning cabinet 6 rapidly, thus the air in cabinet is extruded, reach the object of fire extinguishing.After fire extinguishing, the gas continuing to leak can trigger R490 special gas detector 24, and action after this explains in epimere, does not repeat them here.
Below by way of testing the security checking air-conditioning system of the present invention.
One. experiment purpose:
When 1, testing R490 appearance leakage, whether the security of operation of air conditioner, can detect in time, report to the police and start strong-force exhaust system.
2, test R490 to occur leaking and creating naked light, the security of operation of air conditioner, the feasibility of alarm and fire extinguisher.
Imitate experimental subjects:
Beautiful precision air conditioner MAD060T2R1S1, R490 groundwater increment is approximately 10kg, and volume is 0.91m
3.
This experiment makes cabinet according to IDC air conditioner in machine room compressor operating cabinet with the ratio of 1:1 and tests.Cabinet side adopts transparent visual material to make, and intuitively can see experiment effect.Scene respectively simulated leakage strong-force exhaust, system automatic alarm, catch fire automatically to put out and test.
Two. field experiment:
1, strong-force exhaust is leaked
First there is loosening the slow situation of leaking then simulation and occurring leaking in a large number of then appearance in simulation system pipe joint.Experiment is carried out to leak the mode increased progressively several times.Test R490 special gas detector is from the leakage rate leaked into needed for warning, startup exhaust blower and required reaction time.When leakage rate reaches maximum, exhaust blower needs how long just to drain headroom and adjusts the gas of cabinet until reach safe range.
Experimental technique:
In ready experiment cabinet, be pre-installed R490 special gas detector and connect alarm and exhaust blower by wire.Then R490 gas is injected by connecting hose toward air-conditioning cabinet quantifi-cation.The various leakage situation likely occurred in simulation compressor of air conditioner working region.Can alarm signal be sent when R490 special gas detector detects the gas of leakage and start exhaust blower the gas outlet duct outdoor of leaking.
| Refrigrant leakage amount (g) | Warning required time (s) | Emptying required time (s) |
| 5 | 20 | Blower fan does not start |
| 11 | 19.27 | 4 |
| 20 | 7.47 | 13.68 |
| Refrigrant leakage amount (g) | Warning required time (s) | Emptying required time (s) |
| 36 | 5.42 | 29.82 |
| 73 | 5.1 | 31.3 |
Experimental result:
Through many experiments analysis, R490 special gas detector can detect R490 Leakage Gas the very first time, and sends alarm signal in time and start exhaust blower outdoor for the gas outlet duct leaked simultaneously.
Experimental analysis:
Experiment test system occur slow leak and leakage rate at 5g/m
3time, in safe range, detector only sends alarm signal, but can not start exhaust blower.When leakage rate reaches 11g/m
3in time, sends alarm signal simultaneously and starts exhaust blower and starts forced-ventilated.Can recognize that R490 special gas detector detects that the time of R490 gas leakage reduces with the increase of leakage rate by many experiments.
2, leaking and creating naked light appears in simulation system.Fire extinguisher can be stamped out the flames in time, and subsequent detection instrument can normally work.
Experimental technique:
Automatic suspension fire extinguisher, R490 special gas detector, exhaust blower, alarm has been pre-installed in air-conditioning cabinet.Experiment is guided in air-conditioning cabinet by connecting pipe, and pipe end has diameter to be the leak of 2mm.And at the spark that the short circuit of leak place installation ignition simulation air-condition circuits causes.
Open valve and inject R490 gas in air-conditioning cabinet, connect ignition power supply simultaneously.Meet electric arc after R490 ejection to take fire immediately, the moment explosion when automatic suspension fire extinguisher has detected that naked light produces, the full whole air-conditioning cabinet of dry powder meeting Fast Filling of the inside, the mode finally by starvation reaches the object of fire extinguishing.
Experimental result:
By twice experimental analysis, as system there is naked light time, fire extinguisher can put out burning things which may cause a fire disaster fast.
Experimental analysis:
When leak pressure increases gradually, burning Shaoxing opera is strong, and put out a fire required time can be shorter simultaneously.After fire is put out, R490 special gas detector still normally can detect the gas of leakage, the R490 leaked out can be discharged to outdoor completely.
More than experiment proves that the security alerting system of air-conditioning system of the present invention is feasible.
The air-conditioning system with leakage of refrigerant safety alarm device of the present invention can be widely used in new Air-conditioner design manufacture and old Renovation of air-conditioning system.
In sum, the utility model provides a kind of air-conditioning system with leakage of refrigerant safety alarm device.This air-conditioning system comprises the safety alarm device mainly for indoor apparatus of air conditioner leakage of refrigerant, described safety alarm device comprises strong-force exhaust system and automatic fire extinguishing system, strong-force exhaust system carries out Real-Time Monitoring by arranging special gas detector in air-conditioning cabinet, if Leakage Gas detected, and when reaching setting concentration value, strong-force exhaust system starts, and utilizes exhaust blower that gas leakage is drained into outdoor; If there is the condition of a fire in air-conditioning cabinet, the automatic suspension fire extinguisher of fire extinguishing system can extinguish the blaze voluntarily.
Concept described by the utility model may be embodied to other form when not departing from its spirit and characteristic.Disclosed specific embodiment should be regarded as exemplary instead of restrictive.Therefore, scope of the present utility model is by appended claim, instead of determines according to these descriptions before.Any change in the letter and equivalency range of claim all should belong to the scope of these claims.
Claims (8)
1. one kind has the air-conditioning system of refrigrant leakage safety alarm device, comprise air-conditioning equipment, described air-conditioning equipment comprises indoor set, described indoor set comprises air inlet, air outlet, evaporimeter, air-conditioning draught fan and air-conditioning cabinet, at least one compressor is provided with in described air-conditioning cabinet, at least one compressor described is connected with control power supply, it is characterized in that, described air-conditioning system also comprises leakage of refrigerant safety alarm device, the alarm that described leakage of refrigerant safety alarm device comprises warning Centralized Controller and is connected with described warning Centralized Controller, strong-force exhaust system, refrigerant concentration detector, and automatic fire extinguishing system, described refrigerant concentration detector is arranged in described air-conditioning cabinet, described strong-force exhaust system comprises exhaust duct, exhaust blower controller and exhaust blower, described exhaust duct one end is communicated with described air-conditioning cabinet, the other end is communicated to outdoor, described exhaust blower is electrically connected with described exhaust blower controller and is arranged in described exhaust duct, described automatic fire extinguishing system comprises the automatic suspension fire extinguisher be arranged in air-conditioning cabinet, the quantity of described automatic suspension fire extinguisher is identical with the quantity of described compressor.
2. have the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 1, it is characterized in that, the air-conditioning cabinet of described air-conditioning equipment is closed cabinet body, and sealing strip is posted at its crack between a door and its frame place.
3. have the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 1, it is characterized in that, described refrigerant concentration detector is R490 special gas detector.
4. have the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 3, it is characterized in that, described R490 special gas detector is arranged at the bottom of described air-conditioning cabinet.
5. have the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 1, it is characterized in that, described alarm is audible-visual annunciator.
6. there is the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 1, it is characterized in that, contactor is provided with in the supply line of described compressor, described safety alarm device comprises the coil be connected with described warning Centralized Controller, and described coil acts on described contactor to disconnect or to connect described supply line.
7. there is the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 1, it is characterized in that, described air outlet is communicated with below movable floor, and Indoor Thermal air enters below described movable floor by described air-conditioning draught fan after described air inlet introduces described air-conditioning system heat exchange.
8. have the air-conditioning system of refrigrant leakage safety alarm device as claimed in claim 7, it is characterized in that, described exhaust duct is arranged on below described air-conditioning cabinet.
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| CN201520856226.1U CN205090563U (en) | 2015-10-29 | 2015-10-29 | Air conditioning system with refrigerant leaks security alarm device |
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|---|---|---|---|
| CN201520856226.1U CN205090563U (en) | 2015-10-29 | 2015-10-29 | Air conditioning system with refrigerant leaks security alarm device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052038A (en) * | 2016-07-04 | 2016-10-26 | 珠海格力电器股份有限公司 | Air conditioning system as well as air conditioning control method and device |
| CN109844426A (en) * | 2016-10-17 | 2019-06-04 | 大金工业株式会社 | Refrigerating plant |
| CN111457631A (en) * | 2020-04-30 | 2020-07-28 | 广州东弛自动化设备有限公司 | Explosion-proof system and safety design method for refrigeration equipment adopting combustible refrigerant |
| CN111854009A (en) * | 2020-07-03 | 2020-10-30 | 南方风机股份有限公司 | Nuclear-grade anti-seismic direct-expansion air conditioning unit for third-generation nuclear power station diesel engine plant |
| CN113757794A (en) * | 2020-06-05 | 2021-12-07 | 宁波奥克斯电气股份有限公司 | Combustible refrigerant air conditioner and control method thereof |
-
2015
- 2015-10-29 CN CN201520856226.1U patent/CN205090563U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052038A (en) * | 2016-07-04 | 2016-10-26 | 珠海格力电器股份有限公司 | Air conditioning system as well as air conditioning control method and device |
| CN109844426A (en) * | 2016-10-17 | 2019-06-04 | 大金工业株式会社 | Refrigerating plant |
| CN109844426B (en) * | 2016-10-17 | 2021-04-06 | 大金工业株式会社 | Refrigerating device |
| CN111457631A (en) * | 2020-04-30 | 2020-07-28 | 广州东弛自动化设备有限公司 | Explosion-proof system and safety design method for refrigeration equipment adopting combustible refrigerant |
| CN113757794A (en) * | 2020-06-05 | 2021-12-07 | 宁波奥克斯电气股份有限公司 | Combustible refrigerant air conditioner and control method thereof |
| CN111854009A (en) * | 2020-07-03 | 2020-10-30 | 南方风机股份有限公司 | Nuclear-grade anti-seismic direct-expansion air conditioning unit for third-generation nuclear power station diesel engine plant |
| CN111854009B (en) * | 2020-07-03 | 2024-03-19 | 南方风机股份有限公司 | Anti-seismic direct expansion air conditioning unit for plant building level of diesel engine of third-generation nuclear power station |
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