CN104566864B - Use the air conditioner and control method of combustible refrigerant - Google Patents
Use the air conditioner and control method of combustible refrigerant Download PDFInfo
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- CN104566864B CN104566864B CN201410857596.7A CN201410857596A CN104566864B CN 104566864 B CN104566864 B CN 104566864B CN 201410857596 A CN201410857596 A CN 201410857596A CN 104566864 B CN104566864 B CN 104566864B
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- air conditioner
- outdoor unit
- indoor set
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a kind of air conditioner and control method using combustible refrigerant, wherein, air conditioner includes：Compressor；Indoor set and outdoor unit, wherein, indoor set and outdoor unit connect into circulation loop by pipeline；First magnetic valve；Second solenoid valve, first magnetic valve and the second solenoid valve are disposed in the interior between machine and outdoor unit；Sensing device, it is connected on the pipeline between the second solenoid valve and the indoor set；First detection means, is disposed in the outdoor near machine；Second detection device, it is disposed in the interior near machine；Control unit, reception come from pressure parameter value, first state information and the second status information.Pass through technical scheme, not only consider that the security protection of coolant leakage occurs for indoor and outside, the security protection that whether there is flame around indoor set and outdoor unit is also contemplated simultaneously, and playing reduces the risk burnt in room, ensures user's personal safety and safety of property.
Description
Technical field
The present invention relates to detection of air-conditioning technical field, in particular to a kind of air conditioner using combustible refrigerant and one
Kind uses the control method of the air conditioner of combustible refrigerant.
Background technology
Combustible refrigerant air conditioner because the refrigerant that it is used is flammable, once therefore refrigerant leak, if in air conditioner
Electric spark etc. is produced in operating process, it will cause refrigerant to burn, cause air conditioner scaling loss, severe patient even triggers fire, made
Into larger economic loss.Existing combustible refrigerant air conditioner biases toward the problems such as strick precaution is directly by the leakage on the inside of air conditioner chamber
Caused safety problem or hidden danger.And during the use of air conditioner, also occur that coolant leakage occurs for outdoor unit, if
Outside is on fire for some reason, and the fire accident of outdoor environment may also be introduced indoor by combustible refrigerant air conditioner, cause indoor
On fire or even blast danger.
Therefore, how to ensure that the security protection of coolant leakage occurs for the outdoor unit of air conditioner, turn into urgently to be resolved hurrily at present
Technical problem.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of air conditioner using combustible refrigerant.
It is another object of the present invention to the control method for proposing the air conditioner using combustible refrigerant.
To achieve the above object, a kind of embodiment according to an aspect of the present invention, it is proposed that sky using combustible refrigerant
Device is adjusted, including：Compressor；Indoor set and outdoor unit, wherein, the indoor set and the outdoor unit connect into circulation by pipeline
Loop；First magnetic valve；Second solenoid valve, first magnetic valve and the second solenoid valve are arranged on the indoor set and institute
Between stating outdoor unit, the break-make of pipeline between the indoor set and the outdoor unit is controlled according to the control signal received；Pass
Induction device, it is connected on the pipeline between the second solenoid valve and the indoor set, for detecting the pressure on the pipeline
Parameter value, and the pressure parameter value is sent to control unit；First detection means, it is arranged on the electric-controlled box of the outdoor unit
Or near air outlet, first state information corresponding to the outdoor unit is detected, and the first state information is sent to described
Control unit；Second detection device, it is arranged near the electric-controlled box or air outlet of the indoor set, it is corresponding detects the indoor set
The second status information, and second status information is sent to the control unit；The control unit, reception come from institute
Pressure parameter value, the first state information and second status information are stated, according to the pressure parameter value, first shape
State information and second status information send the control signal to first magnetic valve and the second solenoid valve, with control
Make the break-make of the pipeline.
Air conditioner using combustible refrigerant according to embodiments of the present invention, is provided with detecting on machine and outdoor unit indoors
The detection means of status information, while there is provided the sensing device of pressure parameter value on signal piping, so, pass through the first detection
Device and second detection device detect the status information of outdoor unit and indoor set respectively, and pressure parameter is detected by sensing device
Value, the operation of air conditioner and the switch of each valve are controlled by status information and pressure parameter value.So, not only consider indoor
The security protection of coolant leakage occurs for side, it is also considered that the security protection of coolant leakage occurs for outdoor unit, while also contemplates room
The security protection of flame around interior machine or outdoor unit be present, by rationally controlling the break-make of each valve, reduce combustible refrigerant and exist
Leakage rate in room, while prevent that air is inhaled into compressor and causes compressor damage or blast during recovery refrigerant, plays
The risk burnt in room is reduced, ensures user's personal safety and safety of property.
Specifically, indoor set includes indoor heat exchanger, and outdoor unit includes outdoor heat exchanger.
According to one embodiment of present invention, the first state information includes：Environment temperature residing for the outdoor unit
Information and/or flow through the outdoor unit refrigerant concentration information, and second status information includes：The indoor set institute
The ambient temperature information at place and/or flow through the outdoor unit refrigerant concentration information.
Air conditioner using combustible refrigerant according to embodiments of the present invention, status information include ambient temperature information and refrigerant
Concentration information, if environment temperature is higher than certain value, illustrate flame around air conditioner be present, if refrigerant concentration be higher than one
Definite value, then coolant leakage occurs for explanation, so as to be controlled in time, ensures personal safety and the property safety of user.
According to one embodiment of present invention, in addition to：Exhaust apparatus, it is arranged on the second solenoid valve and the compression
On pipeline between machine, according to the control instruction from the control unit received by the refrigerant in the outdoor unit pipeline
It is emitted into outdoor；And the control unit is additionally operable to：According to the pressure parameter value, the first state information and described
Two-state information sends the control instruction to the exhaust apparatus, to control the opening and closing of the exhaust apparatus.
Air conditioner using combustible refrigerant according to embodiments of the present invention, exhaust apparatus, and root are set in outdoor unit side
According to control instruction by coolant discharging to outdoor environment, so that refrigerant contained in indoor set is filled by the discharge at outdoor unit
Put and emit, reduce the content of combustible refrigerant in indoor set, avoid igniting because refrigerant content is excessive in indoor set, enter one
Step ensures the safety of user.
According to one embodiment of present invention, in addition to：Pipeline reversing service, it is arranged on the compressor and the outdoor
Between machine, for controlling the change of the stream of refrigerant in the pipeline；Throttling arrangement, it is arranged on the outdoor unit and described first
Between magnetic valve.
Air conditioner using combustible refrigerant according to embodiments of the present invention, when air conditioner is in refrigeration mode or heating mode
When, the stream of refrigerant is controlled by pipeline reversing service, carries out the switching of air conditioner refrigeration and heating.
According to one embodiment of present invention, the exhaust apparatus includes air bleeding valve, and the pipeline reversing service includes four
Port valve, can be the dress of the energy detection temperature such as temperature sensor if the first detection means and second detection device detection temperature
Put, can be refrigerant detection sensor for detecting secondary refrigerant leakage etc. if detection refrigerant concentration.
According to one embodiment of present invention, in addition to：Warning device, is connected to the control unit, and reception comes from institute
The alarm signal of control unit transmission is stated, and is alarmed according to the alarm signal.
Air conditioner using combustible refrigerant according to embodiments of the present invention, is additionally provided with warning device, occurs in air conditioner
Flame be present during leakage or around the air conditioner, warning message is sent to warning device, timely to be carried by warning device
User's air-conditioning of waking up breaks down.
According to one embodiment of present invention, in addition to：Display device, is connected to the control unit, and reception comes from institute
The warning message of control unit transmission is stated, and the warning message is shown.
The air conditioner using combustible refrigerant according to embodiments of the present invention, is additionally provided with display device, and control unit is to aobvious
Showing device sends warning message, and display device is shown that so, user can intuitively see the failure of air conditioner.Specifically
Ground, failure code corresponding to the failure cause of air conditioner can be included in warning message.
According to one embodiment of present invention, the sensing device includes pressure sensor.
Air conditioner using combustible refrigerant according to embodiments of the present invention, sensing device can use pressure sensor, lead to
Over-pressed force snesor detects and transmits the pressure value of refrigerant, so that air conditioner can be carried out more by the change of pressure value
For accurately control.
According to one embodiment of present invention, the refrigerant in the pipeline is flammable refrigerant.
According to another aspect of the present invention, it is also proposed that a kind of control method of air conditioner using combustible refrigerant, including：
In the air conditioner normal operation, the air-conditioning is detected by the first detection means and second detection device of the air conditioner
Second status information corresponding to first state information corresponding to the outdoor unit of device and indoor set, and described in being detected by sensing device
Pressure parameter value on indoor set and the outdoor unit pipeline；Sentenced according to the first state information, second status information
Whether the disconnected outdoor unit and the indoor set occur to whether there is flame around coolant leakage or air conditioner；According to judged result
Control the operation of the air conditioner with the pressure parameter value, and the first magnetic valve in the air conditioner, second solenoid valve
With the opening and closing of exhaust apparatus.
The control method of the air conditioner using combustible refrigerant according to embodiments of the present invention, indoors on machine and outdoor unit
There is provided the detection means of detection status information, while there is provided the sensing device of pressure parameter value on signal piping, so, lead to
The status information that the first detection means and second detection device detect outdoor unit and indoor set respectively is crossed, is detected by sensing device
Pressure parameter value, the operation of air conditioner and the switch of each valve are controlled by status information and pressure parameter value.So, not only
Consider that the security protection of coolant leakage occurs for indoor, it is also considered that the security protection of coolant leakage occurs for outdoor unit simultaneously, together
When also contemplate the security protection that flame around indoor set or outdoor unit be present, by rationally controlling the break-make of each valve, subtract
Few leakage rate of the combustible refrigerant in room, while prevent that air is inhaled into compressor and causes compressor damage during recovery refrigerant
Or blast, playing reduces the risk burnt in room, ensures user's personal safety and safety of property.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve, second solenoid valve and exhaust apparatus and in the air conditioner, are specifically included：When
When the air conditioner is currently at refrigeration mode or heating mode operation, if judged result is the outdoor unit, generation refrigerant is let out
Leakage, then the compressor of the air conditioner out of service, closes first magnetic valve and the second solenoid valve, and described in opening
Exhaust apparatus, alarm signal and warning message are sent respectively to warning device and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, when outdoor unit leaks,
Compressor shutdown, four-way valve, the first magnetic valve and second solenoid valve power-off, indoor machine motor are shut down, and exhaust apparatus is opened, so as to
Forbid refrigerant to flow into indoor set, and refrigerant is discharged in outdoor environment in time.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve, second solenoid valve and exhaust apparatus and in the air conditioner, are specifically included：When
When the air conditioner is currently at refrigeration mode, occur to deposit around coolant leakage or air conditioner if judged result is the indoor set
In flame, then first magnetic valve is closed, and control the blower fan of the indoor set to be run with superpower wind shelves；It is described when detecting
When the pressure parameter value that sensing device detects is less than or equal to preset parameter value, the compressor of the air conditioner is controlled to stop
Only run, close the blower fan of the second solenoid valve and the outdoor unit, and send alarm signal and warning message respectively to report
Alarm device and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, when air conditioner is in refrigeration mode
When, refrigerant is the outdoor heat exchanger that four-way valve flows to outdoor unit by pipeline reversing service after compressor discharge, and through throttling
Indoor heat exchanger through the first magnetic valve to indoor set after device, then after indoor and outdoor connecting pipe, flow through second solenoid valve and
Compressor is returned to after four-way valve, after detection means detects that indoor set occurs flame to be present around coolant leakage or air conditioner,
The power-off of first magnetic valve blocks refrigerant circulation, and indoor fan motor is run with superpower wind, and now refrigerant is after compressor discharge, warp
Four-way valve is hoarded to outdoor heat exchanger, in the pipeline and indoor set connected between indoor heat exchanger and outdoor heat exchanger
Refrigerant flows back to compressor after second solenoid valve；After the measured value of sensing device reaches setting value, second solenoid valve, compressor
Powered off with outdoor fan motor, the display device of air conditioner shows failure code and alarmed by warning device, air conditioner
Operation sequence is locked, and air conditioner does not process to the instruction received, and now indoor fan motor continues to run at high speed；Passing through
After the forced-ventilated of a period of time, whole air conditioner power-off；Failure code is still shown after air conditioner re-powers, user can not open
Machine is, it is necessary to can normal operation after being unlocked by maintenance personal to program.Wherein, the setting value is absolute pressure latm, or
Setting value is gauge pressure oatm.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve, second solenoid valve and exhaust apparatus and in the air conditioner, are specifically included：When
When the air conditioner is currently at heating mode, occur to deposit around coolant leakage or air conditioner if judged result is the indoor set
In flame, then the four-way valve of first magnetic valve and the air conditioner is closed, and control the blower fan of the indoor set with superpower
Wind shelves are run；When the pressure parameter value for detecting that the sensing device detects is less than or equal to preset parameter value, control
Make the compressor of the air conditioner is out of service, close the blower fan of the second solenoid valve and the outdoor unit, and send respectively
Alarm signal and warning message are to warning device and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, refrigerant are discharged through four from compressor
Flow into indoor heat exchanger heat exchange after port valve after second solenoid valve again, cross the first magnetic valve and flow out to after capillary-compensated to room
External heat exchanger evaporates, and most returns to compressor through four-way valve afterwards.When detection means detects that coolant leakage or air-conditioning occur for indoor set
After flame being present around device, four-way valve power-off, the first magnetic valve power-off blocks refrigerant circulation, and indoor fan motor is transported with superpower wind
OK, now refrigerant after compressor discharge, is hoarded, positioned at indoor heat exchanger and outdoor heat exchanger through four-way valve to outdoor heat exchanger
Between refrigerant in the pipeline and indoor set that connect compressor is flowed back to after second solenoid valve；When the measured value of sensing device reaches
To after setting value, second solenoid valve, compressor and the power-off of outdoor fan motor, the display device of air conditioner show failure code simultaneously
Alarmed by warning device, the operation sequence of air conditioner is locked, and air conditioner does not process to the instruction received, now indoor fan
Motor continues to run at high speed；After forced-ventilated after a while, whole air conditioner powers off；It is still aobvious after air conditioner re-powers
Show failure code, user cannot be started up, it is necessary to can normal operation after being unlocked by maintenance personal to program.The setting value is exhausted
To pressure latm, or setting value is gauge pressure oatm.
Wherein, capillary adds the first magnetic valve, identical with an electromagnetic expanding valve function, and capillary adjusts the stream of refrigerant
Amount, the break-make of solenoid valve control pipeline, and electromagnetic expanding valve can be by the aperture of regulating valve, so as to adjust flow.Therefore,
It can be substituted with electromagnetic expanding valve.
According to one embodiment of present invention, before the air conditioner normal operation, in addition to：When on the air conditioner
After electricity, directly the is detected corresponding to the outdoor unit of the air conditioner by the first detection means and second detection device detection
Second status information corresponding to one status information and indoor set, and judge whether the outdoor unit and the indoor set occur refrigerant
Flame be present around leakage or air conditioner；It is that coolant leakage or air-conditioning occur for the indoor set or the outdoor unit in judged result
When flame around device be present, the alarm signal and the warning message are directly transmitted to the warning device and the display dress
Put, and be not responding to the remote signal received.
The control method of the air conditioner using combustible refrigerant according to embodiments of the present invention, on air conditioner after electricity, first the
Whether one detection means and second detection device detection air conditioner, which have, has flame around coolant leakage or air conditioner, then will knot
Fruit feeds back to control unit.When the first detection means or second detection device detect that system has around coolant leakage or air conditioner
Flame be present, then remote control signal reception is invalid, and air conditioner shows failure code and warning device sends alarm；It is whole after a period of time
Machine powers off.After the first detection means or second detection device, which do not detect, flame be present around coolant leakage or air conditioner,
The order normal operation arrived according to remote control reception.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the schematic diagram of the air conditioner according to an embodiment of the invention using combustible refrigerant；
Fig. 2 shows the flow chart of the control method of the air conditioner according to an embodiment of the invention using combustible refrigerant；
Fig. 3 shows the idiographic flow of the control method of the air conditioner according to an embodiment of the invention using combustible refrigerant
Figure；
Wherein, the corresponding relation in Fig. 1 between reference and component names is：
1 indoor section, 11 second detection devices, 12 indoor heat exchangers, 13 indoor fans, 2 outdoor sections, 21 compressors,
22 pipeline reversing services, 23 outdoor fans, 24 outdoor heat exchangers, 25 first detection means, 26 throttling arrangements, 27 first electromagnetism
Valve, 28 sensing devices, 29 second solenoid valves, 2A exhaust apparatus.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows the schematic diagram of the air conditioner according to an embodiment of the invention using combustible refrigerant.
As shown in figure 1, according to the air conditioner using combustible refrigerant of the present invention, including：Outdoor section 2 and indoor section 1,
Its outdoor section 2 includes compressor 21, pipeline reversing service 22, outdoor fan 23, outdoor heat exchanger 24, the first detection means
25th, throttling arrangement 26, the first magnetic valve 27, sensing device 28, second solenoid valve 29, exhaust apparatus 2A, indoor section include the
Two detection means 11, indoor heat exchanger 12, indoor fan 13.Wherein, the first magnetic valve 27, second solenoid valve 29 and exhaust apparatus
2A is opened when being powered.
Specifically, indoor set (including indoor heat exchanger 12 and indoor fan 13) and outdoor unit (including outdoor heat exchanger 24
With outdoor fan 23) circulation loop connected into by pipeline；First magnetic valve 27 and the second solenoid valve 29 are arranged on
Between the indoor set and the outdoor unit, controlled according to the control signal received between the indoor set and the outdoor unit
The break-make of pipeline；Sensing device 28, it is connected on the pipeline between the second solenoid valve 29 and the indoor set, for detecting
Pressure parameter value on the pipeline, and the pressure parameter value is sent to control unit (not shown)；First detection
Device 25, it is arranged near the electric-controlled box or air outlet of the outdoor unit, detects first state information corresponding to the outdoor unit,
And the first state information is sent to the control unit；Second detection device 11, it is arranged on the automatically controlled of the indoor set
Near box or air outlet, the second status information corresponding to the indoor set is detected, and second status information is sent to institute
State control unit；The control unit, reception come from the pressure parameter value, the first state information and second state
Information, according to the pressure parameter value, the first state information and second status information to first magnetic valve 27
The control signal is sent with the second solenoid valve 29, to control the break-make of the pipeline.
Air conditioner using combustible refrigerant according to embodiments of the present invention, is provided with detecting on machine and outdoor unit indoors
The detection means of status information, while there is provided the sensing device of pressure parameter value on signal piping, so, pass through the first detection
Device and second detection device detect the status information of outdoor unit and indoor set respectively, and pressure parameter is detected by sensing device
Value, the operation of air conditioner and the switch of each valve are controlled by status information and pressure parameter value.So, not only consider indoor
The security protection that flame around coolant leakage or air conditioner be present occurs for side, it is also considered that coolant leakage or air-conditioning occur for outdoor unit
The security protection of flame around device be present, by rationally controlling the break-make of each valve, reduce leakage of the combustible refrigerant in room
Or flame amount around air conditioner be present, while prevent that air is inhaled into compressor and causes compressor damage or quick-fried during recovery refrigerant
Fried, playing reduces the risk burnt in room, ensures user's personal safety and safety of property.
According to one embodiment of present invention, the first state information includes：Environment temperature residing for the outdoor unit
Information and/or flow through the outdoor unit refrigerant concentration information, and second status information includes：The indoor set institute
The ambient temperature information at place and/or flow through the outdoor unit refrigerant concentration information.
Air conditioner using combustible refrigerant according to embodiments of the present invention, status information include ambient temperature information and refrigerant
Concentration information, if environment temperature be higher than certain value higher than certain value or refrigerant concentration, illustrate generation coolant leakage or
Flame around air conditioner be present, so as to be controlled in time, ensure personal safety and the property safety of user.
According to one embodiment of present invention, in addition to：Exhaust apparatus 2A, it is arranged on the second solenoid valve 29 and described
On pipeline between compressor 21, according to the control instruction from the control unit received by the outdoor unit pipeline
Coolant discharging to outdoor；And the control unit is additionally operable to：According to the pressure parameter value, the first state information and
Second status information sends the control instruction to the exhaust apparatus, to control the exhaust apparatus 2A's to beat on and off
Close.
Air conditioner using combustible refrigerant according to embodiments of the present invention, exhaust apparatus, and root are set in outdoor unit side
According to control instruction by coolant discharging to outdoor environment, so that refrigerant contained in indoor set is filled by the discharge at outdoor unit
Put and emit, reduce the content of combustible refrigerant in indoor set, avoid igniting because refrigerant content is excessive in indoor set, enter one
Step ensures the safety of user.
According to one embodiment of present invention, in addition to：Pipeline reversing service 22, it is arranged on the compressor 21 and described
Between outdoor unit, for controlling the change of the stream of refrigerant in the pipeline；Throttling arrangement 26, it is arranged on the outdoor unit and institute
State between the first magnetic valve 27.
Air conditioner using combustible refrigerant according to embodiments of the present invention, when air conditioner is in refrigeration mode or heating mode
When, the stream of refrigerant is controlled by pipeline reversing service, carries out the switching of air conditioner refrigeration and heating.
According to one embodiment of present invention, the exhaust apparatus includes air bleeding valve, and the pipeline reversing service includes four
Port valve, the throttling arrangement include capillary, can be temperature if the first detection means and second detection device detection temperature
The device of the energy detection temperature such as sensor, can be the refrigerant detection sensor for detecting secondary refrigerant leakage if detection refrigerant concentration
Deng.
Wherein, capillary adds the first magnetic valve, identical with an electromagnetic expanding valve function, and capillary adjusts the stream of refrigerant
Amount, the break-make of solenoid valve control pipeline, and electromagnetic expanding valve can be by the aperture of regulating valve, so as to adjust flow.Therefore,
It can be substituted with electromagnetic expanding valve.
Air bleeding valve is placed on outside, and exhaust outlet is located at the region for being not likely to produce spark, such as：Bottom plate of outdoor unit.Air bleeding valve leads to
Turn on when electric, close during power-off.
According to one embodiment of present invention, in addition to：Warning device (being to show in figure), is connected to the control unit
Part, the alarm signal sent from the control unit is received, and alarmed according to the alarm signal.
Air conditioner using combustible refrigerant according to embodiments of the present invention, is additionally provided with warning device, occurs in air conditioner
When flame be present around leakage or air conditioner, warning message is sent to warning device, timely to remind use by warning device
Family air-conditioning breaks down.Warning device can be voice-control alarm device or light control alarm device, can also be and have sound concurrently
Control and the device of light control alarm.
According to one embodiment of present invention, in addition to：Display device (not shown), it is connected to the control unit
Part, the warning message sent from the control unit is received, and the warning message is shown.
The air conditioner using combustible refrigerant according to embodiments of the present invention, is additionally provided with display device, and control unit is to aobvious
Showing device sends warning message, and display device is shown that so, user can intuitively see the failure of air conditioner.Specifically
Ground, failure code corresponding to the failure cause of air conditioner can be included in warning message.
According to one embodiment of present invention, the sensing device 28 includes pressure sensor.
Air conditioner using combustible refrigerant according to embodiments of the present invention, sensing device can use pressure sensor, lead to
Over-pressed force snesor detects and transmits the pressure value of refrigerant, so that air conditioner can be carried out more by the change of pressure value
For accurately control.
According to one embodiment of present invention, the refrigerant in the pipeline is flammable refrigerant.
Fig. 2 shows the flow chart of the control method of the air conditioner according to an embodiment of the invention using combustible refrigerant.
As shown in Fig. 2 the control method of the air conditioner according to an embodiment of the invention using combustible refrigerant, including：Step
Rapid 202, in the air conditioner normal operation, examined by the first detection means 25 and second detection device 11 of the air conditioner
The second status information corresponding to first state information corresponding to the outdoor unit of the air conditioner and indoor set is surveyed, and is filled by sensing
Put the pressure parameter value detected on the indoor set and the outdoor unit pipeline；Step 204, according to the first state information,
Second status information judges the outdoor unit and the indoor set whether occur be around coolant leakage or the air conditioner
It is no flame to be present；Step 206, the operation of the air conditioner is controlled according to judged result and the pressure parameter value, and it is described
The opening and closing of the first magnetic valve 27, second solenoid valve 29 and exhaust apparatus 2A in air conditioner.
The control method of the air conditioner using combustible refrigerant according to embodiments of the present invention, indoors on machine and outdoor unit
There is provided the detection means of detection status information, while there is provided the sensing device of pressure parameter value on signal piping, so, lead to
The status information that the first detection means 25 and second detection device 11 detect outdoor unit and indoor set respectively is crossed, passes through sensing device
Pressure parameter value is detected, the operation of air conditioner and the switch of each valve are controlled by status information and pressure parameter value.So,
Not only consider that the security protection that flame around coolant leakage or air conditioner be present occurs for indoor, it is also considered that outdoor unit occurs cold
The security protection of flame around matchmaker's leakage or air conditioner be present, by rationally controlling the break-make of each valve, reduce combustible refrigerant and exist
Leakage rate in room, while prevent that air is inhaled into compressor and causes compressor damage or blast during recovery refrigerant, plays
The risk burnt in room is reduced, ensures user's personal safety and safety of property.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve 27, second solenoid valve 29 and exhaust apparatus 2A and in the air conditioner, specific bag
Include：When the air conditioner is currently at refrigeration mode or heating mode is run, if judged result is the outdoor unit, generation is cold
Flame be present around matchmaker's leakage or air conditioner, then the compressor 21 of the air conditioner out of service, close first magnetic valve
27 and the second solenoid valve 29, and the exhaust apparatus 2A is opened, alarm signal and warning message are sent respectively to dress of alarming
Put and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, when leakage or empty occurs for outdoor unit
When flame be present around tune device, compressor shutdown, four-way valve (i.e. pipeline reversing service 22), the first magnetic valve and second solenoid valve
Power-off, indoor machine motor are shut down, and exhaust apparatus is opened, and so as to forbid refrigerant to flow into indoor set, and refrigerant are discharged into outdoor in time
In environment.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve 27, second solenoid valve 29 and exhaust apparatus 2A and in the air conditioner, specific bag
Include：When the air conditioner is currently at refrigeration mode, if judged result, which is the indoor set, occurs coolant leakage or air conditioner
There is flame in surrounding, then close first magnetic valve 27, and control the blower fan of the indoor set to be run with superpower wind shelves；Work as inspection
When measuring the pressure parameter value that the sensing device 28 detects and being less than or equal to preset parameter value, the air conditioner is controlled
Compressor 21 it is out of service, close the blower fan of the second solenoid valve 29 and the outdoor unit, and send alarm signal respectively
With warning message to warning device and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, when air conditioner is in refrigeration mode
When, refrigerant is the outdoor heat exchanger 24 that four-way valve flows to outdoor unit by pipeline reversing service 22 after the discharge of compressor 21, and
The indoor heat exchanger 12 through the first magnetic valve to indoor set after throttling arrangement 26, then after indoor and outdoor connecting pipe, flow through
Compressor is returned to after two magnetic valves 29 and four-way valve 22, when detection means 11 detects that coolant leakage or air conditioner occur for indoor set
After surrounding has flame, the power-off of the first magnetic valve 27 blocks refrigerant circulation, and indoor fan motor is run with superpower wind, now refrigerant
After the discharge of compressor 21, hoarded through four-way valve 22 to outdoor heat exchanger 24, positioned at indoor heat exchanger 12 and outdoor heat exchanger 24
Between refrigerant in the pipeline and indoor set that connect compressor 21 is flowed back to after second solenoid valve 29；When the survey of sensing device 28
After value reaches setting value, second solenoid valve 29, compressor 21 and the power-off of outdoor fan motor, the display device of air conditioner are shown
Failure code is simultaneously alarmed by warning device, and the operation sequence of air conditioner is locked, and air conditioner is not done to the instruction received to be located
Reason, now indoor fan motor continues to run at high speed；After forced-ventilated after a while, whole air conditioner powers off；Work as air-conditioning
Device still shows failure code after re-powering, user cannot be started up normally transporting after, it is necessary to unlock program by maintenance personal
OK.Wherein, the setting value is absolute pressure latm, or setting value is gauge pressure oatm.
According to one embodiment of present invention, the fortune of the air conditioner is controlled according to judged result and the pressure parameter value
OK, the opening and closing of the first magnetic valve 27, second solenoid valve 29 and exhaust apparatus 2A and in the air conditioner, specific bag
Include：When the air conditioner is currently at heating mode, if judged result, which is the indoor set, occurs coolant leakage or air conditioner
There is flame in surrounding, then close the four-way valve 22 of first magnetic valve 27 and the air conditioner, and control the indoor set
Blower fan is run with superpower wind shelves；When detecting that it is default that the pressure parameter value that the sensing device 28 detects is less than or equal to
During parameter value, control the compressor 21 of the air conditioner out of service, close the second solenoid valve 29 and the outdoor unit
Blower fan, and alarm signal and warning message are sent respectively to warning device and display device.
The control method of air conditioner using combustible refrigerant according to embodiments of the present invention, refrigerant are discharged from compressor 21 and passed through
Indoor heat exchanger 12 is flowed into after four-way valve 22 after second solenoid valve 29 again to exchange heat, and is crossed the first magnetic valve 27 and is flowed out to capillary
Evaporated after throttling to outdoor heat exchanger 24, most return to compressor through four-way valve 22 afterwards.When detection means 11 detects that indoor set is sent out
After flame being present around raw coolant leakage or air conditioner, four-way valve 22 powers off, and the power-off of the first magnetic valve 27 blocks refrigerant circulation, room
Inner blower motor is run with superpower wind, and now refrigerant is hoarded, position after compressor discharge through four-way valve 22 to outdoor heat exchanger 24
The refrigerant in pipeline and indoor set connected between indoor heat exchanger 12 and outdoor heat exchanger 24 is after second solenoid valve 29
Flow back to compressor 21；After the measured value of sensing device 28 reaches setting value, second solenoid valve 29, compressor 21 and outdoor fan
Motor powers off, and the display device of air conditioner shows failure code and alarmed by warning device that the operation sequence of air conditioner is locked, empty
Device is adjusted not process the instruction received, now indoor fan motor continues to run at high speed；Through forced-ventilated after a while
Afterwards, whole air conditioner power-off；Failure code is still shown after air conditioner re-powers, user cannot be started up, it is necessary to by repairing people
Member can normal operation after being unlocked to program.The setting value is absolute pressure latm, or setting value is gauge pressure oatm.
Wherein, capillary adds the first magnetic valve, identical with an electromagnetic expanding valve function, and capillary adjusts the stream of refrigerant
Amount, the break-make of solenoid valve control pipeline, and electromagnetic expanding valve can be by the aperture of regulating valve, so as to adjust flow.Therefore,
It can be substituted with electromagnetic expanding valve.
According to one embodiment of present invention, before the air conditioner normal operation, in addition to：When on the air conditioner
After electricity, the outdoor unit that the air conditioner is directly detected by the first detection means 25 and the detection of the second detection device 11 is corresponding
First state information and indoor set corresponding to the second status information, and judge whether the outdoor unit and the indoor set occur
Flame be present around coolant leakage or air conditioner；Judged result be the indoor set or the outdoor unit occur coolant leakage or
When flame around air conditioner be present, the alarm signal and the warning message are directly transmitted to the warning device and described aobvious
Showing device, and it is not responding to the remote signal received.
The control method of the air conditioner using combustible refrigerant according to embodiments of the present invention, on air conditioner after electricity, first the
Whether one detection means and second detection device detection air conditioner have coolant leakage or environment temperature exceeded, then feed back result
To control unit.When the first detection means or second detection device detect that system has coolant leakage or exceeded environment temperature,
Then remote control signal reception is invalid, and air conditioner shows failure code and warning device sends alarm；Complete machine powers off after a period of time.When
After first detection means or second detection device do not detect coolant leakage, the order normal operation that is arrived according to remote control reception.
Fig. 3 shows the idiographic flow of the control method of the air conditioner according to an embodiment of the invention with combustible refrigerant
Figure.
As shown in figure 3, the idiographic flow of the control method of the air conditioner according to an embodiment of the invention with combustible refrigerant,
Including：
Step 302, it is powered to air-conditioning.
Step 304, the first detection means and second detection device judge that outdoor and interior whether there is coolant leakage or ring
Border temperature exceeding standard, if the determination result is YES, into step 306, if judged result is no, into step 308.
Step 306, remote-control air conditioner is started shooting.
Step 308, program is locked, display board failure code, buzzer warning, and air-conditioning continues to run with the t times and enters step
332。
Step 332, air conditioner powers off.
Step 310, during air conditioner refrigerating operaton, the first and second solenoid valves.
Step 312, the first detection means judges that outdoor unit is exceeded with the presence or absence of coolant leakage or environment temperature, if judging knot
Fruit is no, into step 314, if the determination result is YES, air conditioner normal operation.
Step 314, compressor, four-way valve, the first magnetic valve, second solenoid valve, the power-off of indoor and outdoor machine motor, air bleeding valve are beaten
Open, warning device sends alarm, and the superpower wind of indoor motor, air-conditioning continues to run with the t3 times, into step 332.
Step 316, second detection device judges that indoor set is exceeded with the presence or absence of coolant leakage or environment temperature, if judging knot
Fruit is no, into step 318, if the determination result is YES, air conditioner normal operation.
Step 318, the power-off of the first magnetic valve, the superpower wind operation of indoor motor.
Step 320, indoor motor continues to run with the t1 times, i.e., when pressure value reaches preset value, second solenoid valve, compression
Machine, outdoor motor power-off, program is locked, and display board shows failure code, buzzer alarm, and air-conditioning continues to run with the t2 times, entered
Enter step 332.
Step 322, when air conditioner heat-production is run, the first and second solenoid valves.
Step 324, second detection device judges that indoor set is exceeded with the presence or absence of coolant leakage or environment temperature, if judging knot
Fruit is no, into step 326, if the determination result is YES, air conditioner normal operation.
Step 326, four-way valve and the power-off of the first magnetic valve, indoor motor are run with superpower wind, and enter step 320.
Step 328, the first detection means judges that outdoor unit is exceeded with the presence or absence of coolant leakage or environment temperature, if judging knot
Fruit is no, into step 330, if the determination result is YES, air conditioner normal operation.
Step 330, compressor, four-way valve, the first magnetic valve, second solenoid valve, indoor and outdoor machine power-off, safety exhaust are beaten
Open, alarm device sends alarm, and air-conditioning continues to run with the t3 times, into step 332.
Technical scheme is described in detail above in association with accompanying drawing, it is contemplated that in the prior art, existing flammable
Refrigerant air conditioner biases toward the problems such as strick precaution is directly by the leakage on the inside of air conditioner chamber caused safety problem or hidden danger.Cause
This, the present invention proposes a kind of air conditioner using combustible refrigerant, not only considers that coolant leakage occurs for indoor and outside
Security protection, while the security protection that whether there is flame around indoor set and outdoor unit is also contemplated, playing reduces in room
The risk of burning, ensure user's personal safety and safety of property.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
- A kind of 1. air conditioner using combustible refrigerant, it is characterised in that including：Compressor；Indoor set and outdoor unit, wherein, the indoor set and the outdoor unit connect into circulation loop by pipeline；First magnetic valve；Second solenoid valve, first magnetic valve and the second solenoid valve be arranged on the indoor set and the outdoor unit it Between, according to the break-make of pipeline between the control signal control indoor set received and the outdoor unit；Sensing device, it is connected on the pipeline between the second solenoid valve and the indoor set, for detecting the pipeline Pressure parameter value, and the pressure parameter value is sent to control unit；First detection means, it is arranged near the outdoor unit, detects first state information corresponding to the outdoor unit, and by institute First state information is stated to send to the control unit；Second detection device, it is arranged near the indoor set, detects the second status information corresponding to the indoor set, and by institute The second status information is stated to send to the control unit；The control unit, reception come from the pressure parameter value, the first state information and second status information, root According to the pressure parameter value, the first state information and second status information to first magnetic valve and described second Magnetic valve sends the control signal, to control the break-make of the pipeline；The first state information includes：Ambient temperature information residing for the outdoor unit and/or flow through the cold of the outdoor unit The concentration information of matchmaker, andSecond status information includes：Ambient temperature information residing for the indoor set and/or flow through the cold of the indoor set The concentration information of matchmaker；Exhaust apparatus, it is arranged on the pipeline between the second solenoid valve and the compressor, institute is come from according to what is received The control instruction of control unit is stated by the coolant discharging in the outdoor unit pipeline to outdoor；AndThe control unit is additionally operable to：Institute is sent to the exhaust apparatus according to the pressure parameter value, the first state information and second status information Control instruction is stated, to control the opening and closing of the exhaust apparatus.
- 2. the air conditioner according to claim 1 using combustible refrigerant, it is characterised in that also include：Pipeline reversing service, it is arranged between the compressor and the outdoor unit, for controlling the stream of refrigerant in the pipeline The change on road；Throttling arrangement, it is arranged between the outdoor unit and first magnetic valve.
- 3. the air conditioner according to claim 2 using combustible refrigerant, it is characterised in thatThe exhaust apparatus includes air bleeding valve, and the pipeline reversing service includes four-way valve.
- 4. the air conditioner according to claim 2 using combustible refrigerant, it is characterised in that also include：Warning device, the control unit is connected to, receives the alarm signal sent from the control unit, and according to described Alarm signal is alarmed.
- 5. the air conditioner according to claim 2 using combustible refrigerant, it is characterised in that also include：Display device, the control unit is connected to, receives the warning message sent from the control unit, and to the report Alert information is shown.
- 6. the air conditioner according to any one of claim 1 to 5 using combustible refrigerant, it is characterised in thatThe sensing device includes pressure sensor, and first detection means is arranged on electric-controlled box or the air-out of the outdoor unit Near mouthful, the second detection device is arranged near the electric-controlled box or air outlet of the indoor set.
- 7. the air conditioner according to any one of claim 1 to 5 using combustible refrigerant, it is characterised in thatThe refrigerant in the pipeline is flammable refrigerant.
- 8. a kind of control method of the air conditioner according to any one of claim 1 to 7 using combustible refrigerant, its feature It is, including：In the air conditioner normal operation, by described in the first detection means and the second detection device detection of the air conditioner Second status information corresponding to first state information corresponding to the outdoor unit of air conditioner and indoor set, and detected by sensing device Pressure parameter value on the indoor set and the outdoor unit pipeline；The outdoor unit is judged according to the first state information, second status information and the indoor set whether occur it is cold It whether there is flame around matchmaker's leakage or the air conditioner；The operation of the air conditioner, and the first electricity in the air conditioner are controlled according to judged result and the pressure parameter value The opening and closing of magnet valve, second solenoid valve and exhaust apparatus.
- 9. the control method of the air conditioner according to claim 8 using combustible refrigerant, it is characterised in that tied according to judgement Fruit and the pressure parameter value control the operation of the air conditioner, and the first magnetic valve, the second electromagnetism in the air conditioner The opening and closing of valve and exhaust apparatus, are specifically included：When the air conditioner is currently at refrigeration mode or heating mode is run, if judged result is the outdoor unit, generation is cold Flame be present around matchmaker's leakage or the air conditioner, then the compressor of the air conditioner out of service, close first electromagnetism Valve and the second solenoid valve, and open the exhaust apparatus, send respectively alarm signal and warning message to warning device and Display device.
- 10. the control method of the air conditioner according to claim 8 using combustible refrigerant, it is characterised in that according to judgement As a result the operation of the air conditioner, and the first magnetic valve, the second electricity in the air conditioner are controlled with the pressure parameter value The opening and closing of magnet valve and exhaust apparatus, are specifically included：When the air conditioner is currently at refrigeration mode, if judged result, which is the indoor set, occurs coolant leakage or the sky Adjust around device and flame be present, then close first magnetic valve, and control the blower fan of the indoor set to be run with superpower wind shelves；When the pressure parameter value for detecting that the sensing device detects is less than or equal to preset parameter value, described in control The compressor of air conditioner is out of service, closes the blower fan of the second solenoid valve and the outdoor unit, and sends alarm signal respectively Number and warning message to warning device and display device.
- 11. the control method of the air conditioner according to claim 8 using combustible refrigerant, it is characterised in that according to judgement As a result the operation of the air conditioner, and the first magnetic valve, the second electricity in the air conditioner are controlled with the pressure parameter value The opening and closing of magnet valve and exhaust apparatus, are specifically included：When the air conditioner is currently at heating mode, if judged result, which is the indoor set, occurs coolant leakage or the sky Adjust around device and flame be present, then close the four-way valve of first magnetic valve and the air conditioner, and control the indoor set Blower fan is run with superpower wind shelves；When the pressure parameter value for detecting that the sensing device detects is less than or equal to preset parameter value, described in control The compressor of air conditioner is out of service, closes the blower fan of the second solenoid valve and the outdoor unit, and sends alarm signal respectively Number and warning message to warning device and display device.
- 12. the control method of the air conditioner using combustible refrigerant according to any one of claim 9 to 11, its feature exist In, before the air conditioner normal operation, in addition to：After electricity on the air conditioner, the air conditioner is directly detected by the first detection means and the second detection device Second status information corresponding to first state information corresponding to outdoor unit and indoor set, and judge the outdoor unit and the interior Whether machine occurs flame be present around coolant leakage or the air conditioner；When judged result is the indoor set or the outdoor unit occurs flame to be present around coolant leakage or the air conditioner, The alarm signal and the warning message are directly transmitted to the warning device and the display device, and is not responding to receive Remote signal.
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| CN110173813A (en) * | 2019-05-30 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
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