CN105588285A - Air conditioner based on pipeline blocking self-diagnosis method - Google Patents
Air conditioner based on pipeline blocking self-diagnosis method Download PDFInfo
- Publication number
- CN105588285A CN105588285A CN201610039373.9A CN201610039373A CN105588285A CN 105588285 A CN105588285 A CN 105588285A CN 201610039373 A CN201610039373 A CN 201610039373A CN 105588285 A CN105588285 A CN 105588285A
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- air
- pipeline blockage
- indoor
- conditioner
- air conditioner
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- 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
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner based on a pipeline blocking self-diagnosis method. Existing hardware facilities, such as an indoor environment temperature sensor and an indoor coil pipe temperature sensor, of an air conditioner are mainly utilized for collecting, analyzing and processing data by adding control logic. According to the air conditioner, the aims that in the first-time power-on trial run process after installation of the air conditioner, pipeline blocking faults generated by product manufacturing or pipeline blocking faults generated by installation are automatically eliminated in advance, and damage of long-time run with the faults to a compressor and other core valuable components is avoided are mainly achieved. The method has the beneficial effects of being simple, reliable, low in cost and easy to popularize.
Description
Technical field
The invention belongs to the control technology field in air conditioning and refrigeration engineering, be mainly applicable to equipment cooling class air-conditioning, spyIt not the split-type air conditioner that compressor is arranged on indoor set.
Background technology
Because indoor environment temperature is comparatively stable, in order to improve the reliability of air-conditioning, by compressor design in indoor set,While causing thus this kind of indoor set to be produced, cannot connection standard machine on common production line body, open compressor and carry out test running,So that whether inspection air-conditioning is normal.
Compressor, at indoor air-conditioner, if open compressor test running while production, cannot reclaim cold-producing medium, therefore needsWill again find time and charging refrigerant again, this process wastes time and energy, and most of enterprise is for cost-saving, and such air-conditioning is being given birth toWhen product, only carry out functional inspection, and do not open compressor trial run.
Whether see Fig. 1, when production, maintenance valve 1 inserts in copper pipe road 2 and welds, cannot convenient welding qualified from outward appearance.But after copper pipe is dissected, see Fig. 2, wherein maintenance valve 1 has been inserted into copper pipe 2 bottoms, affects cold-producing medium and normally follows in copper pipeRing. In refrigeration system, other weld as high-voltage switch gear, low tension switch etc. coordinate, and all likely insert and deeply cause pipeline stifledPlug. In addition when mounted, also often there is do not opening in situation as the stop valve 9 of the indoor set in Fig. 3 or off-premises station air-conditioningThe start that powers on moves, and now, due to stop valve 9 closures, cold-producing medium cannot circulate, pipeline blockage. In the time that environment temperature is lower, send outRaw this type of refrigeration working medium pipe-line system is stopped up, according to routine install test running cannot people for distinguishing that whether air-conditioning system normal. CauseThis, need to rely on control system automatic decision, else if pipe-line system stop up, air-conditioner continue occur high-pressure shut down orLow pressure is shut down or overheat of compressor is shut down, and operates with failure for a long time and causes the most at last compressor damage.
Summary of the invention
This patent provides a kind of air-conditioner, and this air-conditioner configuration pipeline blockage self diagnosis protection, when refrigerant circulation line systemNo matter be that product manufacture causes or the obstruction that installation process causes, controller all can be protected in time and avoid in air-conditioning systemHigh frequent start and stop finally cause damaging, pipeline blockage self diagnosis protection can improve the reliability of air-conditioner.
Another object of the present invention is to provide the self-diagnosing method of a kind of air-conditioner and pipeline blockage, stifled when there is pipelineWhen plug, air-conditioner can initiatively be protected shutdown, avoids the core component of air-conditioner as the damage of compressor, improve air-conditioner canLean on property.
Be arranged on the split-type air conditioner of indoor set based on an air-conditioner for self diagnosis pipeline blockage method, particularly compressorDevice, main modular comprises: master controller, major function is that air-conditioner indoor environment temperature and indoor coil pipe are adoptedCollection, processing, relatively also judgement, determine whether to occur pipeline blockage output order; Indoor environment temperature sensor and indoor dishPipe temperature sensor, mainly carries out thermometric and switching signal; Ensure that air-conditioning normally moves.
The self-diagnosing method that described master controller comprises pipeline blockage, realizes diagnosis by master controller, can effectively prevent skyAdjust pipeline weldering stifled.
Utilize the existing hardware facility of air-conditioner as indoor environment temperature sensor, indoor coil pipe sensor, pass throughIncrease control logic, carry out data acquisition, analysis processing, after air-conditioning is installed, power on first in trial run process, in advance certainlyThe pipeline blockage fault that the manufacture of moving investigation product produces or the pipeline blockage fault that generation is installed.
If controller judges pipeline blockage, close compressor, avoid destruction compressor apparatus, master controller will be exportedOff signal, and alarm indication defective pipe obstruction code, and investigate one by one.
This pipeline blockage is protected collection to air-conditioner indoor environment temperature, indoor coil pipe by master controller, is locatedReason and relatively judgement, determine whether to occur pipeline blockage output order. If be temporarily judged as pipeline blockage, close compressor,(t is required to meet compressor minimum down time, at least 3 minutes, generally gets 3 minutes to shut down the t time. ) after restart,And repeat the protection of above pipeline blockage protection self diagnosis, if occur continuously n pipeline blockage (number of repetition n judges by accident for avoiding,Be generally 1 time to 3 times, get 3 times at this place), judge this air-conditioning generation pipeline blockage, master controller will be exported off signal, andAlarm indication defective pipe stops up code, and this fault occurs that air-conditioning cannot automatically reset, and needs artificially again to power on after power-off skyAdjust and just can restart, the appearance prompting installation and maintenance personnel of this fault need to check in installation process or air-conditioning internal duct systemWhat in system, may occur to stop up may and investigate one by one.
The advantage of this patent is: utilize the existing hardware facility of air-conditioner as indoor environment temperature sensor, indoor dishPipe temperature sensor, by increasing control logic, carries out data acquisition, analysis processing, and examination powers on first after air-conditioning is installedIn running, the pipeline blockage fault that the pipeline blockage fault that the manufacture of investigation product produces automatically in advance or installation produce,The core components such as causing compressor of avoiding operating with failure for a long time damages, and the method is simple and reliable, with low cost.
Brief description of the drawings
The existing air-conditioning duct schematic diagram of Fig. 1
The existing air-conditioning duct welding of Fig. 2 cutaway view
Fig. 3 air-conditioning flow chart of the present invention
Fig. 4 air-conditioning control block diagram of the present invention
The self diagnosis logic chart of Fig. 5 pipeline blockage of the present invention
Fig. 6 workflow frame diagram of the present invention.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but not office of the present inventionBe limited to listed embodiment.
1. see air-conditioning flow chart 3, Fig. 6, air-conditioner is mainly by indoor set 3, off-premises station 4 and on-the-spot installation by online pipe groupBecome. Indoor set 3 mainly by maintenance valve 4, pipeline 5, compressor 6, indoor environment temperature sensor 7, evaporimeter 8, indoor fan 9,Indoor coil sensor 10, master controller 11, throttle part 12 and stop valve 13 form. Off-premises station is by outdoor fan 15, condensationDevice 16 and stop valve 13 form.
Air-conditioner when work, internal refrigeration storage agent from compressor 6 out after, by pipeline 5 and stop valve 13, enter condensationDevice 16, then pass through stop valve 13 and throttle part 12, enter in evaporimeter 8, out get back to afterwards compressor 6, complete kind of refrigeration cycle.
2. control block diagram is shown in Fig. 4, and master controller gathers indoor environment temperature, indoor coil pipe, indoor design temperature, entersRow comparative analysis, the operation of compressor, indoor fan and outdoor fan is controlled in output, realizes the automatic operation control of air-conditioner.Wherein indoor environment temperature gathers by indoor temperature temperature sensor 7, and indoor coil pipe is by indoor coil pipe sensingDevice 10 gathers, and indoor design temperature is the demand of the manual input of user.
3. utilize each device in existing air-conditioner, increase the control logic of pipeline blockage protection, improve the reliable of air-conditionerProperty.
4. after air-conditioner installs, when operation of powering on first, carry out the self-diagnosing method of pipeline blockage, non-ly power on firstThis function is not carried out in operation.
5. the self diagnosis logic of pipeline blockage is shown in Fig. 5,
5.1 starts that power on first, now indoor fan starts operation at once, master controller collection indoor environment temperature T1 nowRoom temperature, air-conditioning coil pipe temperature T 1 coil pipe, compressor and outdoor fan operation after 3 minutes, after certain hour t, (this time is unsuitable excessivelyLong, generally in 3 minutes), master controller gathers indoor environment temperature T2 room temperature, air-conditioning coil pipe temperature T 2 coil pipes again.
5.2. master controller compares analysis according to the data that collect,
(this setting value is generally 1 degree to 5 degree to the setting of condition 1:T1 coil pipe-T2 coil pipe≤coil pipe difference, gets 3 degree. )
(this setting value is generally 1 degree to 5 degree to condition 2:T2 room temperature-T2 coil pipe≤difference setting value, gets 3 degree. )
T coil pipe and T room temperature >=-40 of condition 3:50 >=detect, (this place's temperature is considered to amplify on actual environment temperature basisBoundary condition, is defined as 50 degree and-40 degree. )
Above 3 conditions meet simultaneously, fix tentatively the pipeline blockage into refrigerant circulation, and now pipeline temporarily stops up instruction n meterNumber is 1.
5.3 master controllers are according to the obstruction instruction n that receives, if judges n time continuously (number of repetition n judges by accident as avoiding,Be generally 1 time to 3 times, get 3 times at this place) occur that pipeline blockage, master controller send final pipeline blockage fault, close skyAdjust and output alarm information, wait for after maintenance personal overhauls and re-powering, air-conditioning could start again.
Do not meet number of times requirement if stop up instruction n, close air-conditioning, after the t time, (it is the shortest that t is required to meet compressorDowntime, at least 3 minutes, generally get 3 minutes. ) restart air-conditioning, again detect and judge.
The above is only the preferred embodiment of the present invention, it should be pointed out that the ordinary skill people for the artMember, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications also shouldBe considered as protection scope of the present invention.
Claims (4)
1. the air-conditioner based on self diagnosis pipeline blockage method, is characterized in that, particularly compressor is arranged on indoor setSplit type air conditioner, comprising: control system, major function is that air-conditioner indoor environment temperature and indoor coil pipe are adoptedCollection, processing, relatively also judgement, determine whether to occur pipeline blockage output order; Indoor environment temperature sensor and indoor dishPipe temperature sensor, mainly carries out thermometric and switching signal; Ensure that air-conditioning normally moves.
2. the air-conditioner based on self diagnosis pipeline blockage method according to claim 1, is characterized in that described control systemWhether the self-diagnosing method that comprises pipeline blockage, realize diagnosis air-conditioning duct by a master controller and weld stifled.
3. the air-conditioner based on self diagnosis pipeline blockage method according to claim 2, the self diagnosis scheme of pipeline blockage, itsBe characterised in that, utilize the existing hardware facility of air-conditioner as indoor environment temperature sensor, indoor coil pipe sensor, pass throughIncrease control logic, carry out data acquisition, analysis processing, after air-conditioning is installed, power on first in trial run process, in advance certainlyThe pipeline blockage fault that the manufacture of moving investigation product produces or the pipeline blockage fault that generation is installed.
4. the air-conditioner based on self diagnosis pipeline blockage method according to claim 3, is characterized in that, if controller is sentencedDisconnected pipeline blockage is closed compressor, has avoided destruction compressor apparatus, and master controller will be exported off signal, and alarm indication eventBarrier pipeline blockage code, and investigate one by one.
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| CN201610039373.9A CN105588285A (en) | 2016-01-21 | 2016-01-21 | Air conditioner based on pipeline blocking self-diagnosis method |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839282A (en) * | 2017-01-05 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its control method for over-heating protection and system |
| CN107576024A (en) * | 2017-09-27 | 2018-01-12 | 广东美的暖通设备有限公司 | Fault detection method, the apparatus and system of multi-online air-conditioning system |
| CN108317662A (en) * | 2018-02-05 | 2018-07-24 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN108361915A (en) * | 2018-02-05 | 2018-08-03 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN108388227A (en) * | 2018-01-30 | 2018-08-10 | 杭州深渡科技有限公司 | Air-conditioning remote fault diagnosis method and system |
| CN109114732A (en) * | 2018-08-13 | 2019-01-01 | 广东美的制冷设备有限公司 | Control method, device and the air conditioner of air conditioner |
| CN109297136A (en) * | 2018-11-14 | 2019-02-01 | 宁波奥克斯电气股份有限公司 | A kind of expansion valve blocking determination method and air conditioner |
| CN110173810A (en) * | 2019-05-27 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN110967207A (en) * | 2019-12-04 | 2020-04-07 | 常州大学 | Welding and plugging performance detection method for integral heat pump water heater system |
| CN111895613A (en) * | 2020-07-24 | 2020-11-06 | 海信（山东）空调有限公司 | Control method based on temperature detection and air conditioner |
| CN112082250A (en) * | 2020-08-12 | 2020-12-15 | 珠海格力电器股份有限公司 | Air conditioner installation state detection method and device, storage medium and air conditioner |
| CN112113310A (en) * | 2020-08-12 | 2020-12-22 | 珠海格力电器股份有限公司 | Method and device for confirming running state of air conditioner and storage medium |
| CN112567181A (en) * | 2018-08-24 | 2021-03-26 | 夏普株式会社 | Air conditioner system, control method for air conditioner system, and air conditioner system control program |
| CN113531773A (en) * | 2021-06-18 | 2021-10-22 | 宁波奥克斯电气股份有限公司 | Multi-connected air conditioner fault detection method and device and multi-connected air conditioner |
| CN113847705A (en) * | 2021-09-30 | 2021-12-28 | 广东美的制冷设备有限公司 | Air conditioner, quick detection method and device thereof and storage medium |
| CN114608141A (en) * | 2022-03-07 | 2022-06-10 | 浙江中烟工业有限责任公司 | Valve leakage diagnosis method and device for process air conditioning unit |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839282B (en) * | 2017-01-05 | 2019-10-01 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method for over-heating protection and system |
| CN106839282A (en) * | 2017-01-05 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its control method for over-heating protection and system |
| CN107576024A (en) * | 2017-09-27 | 2018-01-12 | 广东美的暖通设备有限公司 | Fault detection method, the apparatus and system of multi-online air-conditioning system |
| CN108388227A (en) * | 2018-01-30 | 2018-08-10 | 杭州深渡科技有限公司 | Air-conditioning remote fault diagnosis method and system |
| CN108317662A (en) * | 2018-02-05 | 2018-07-24 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN108361915A (en) * | 2018-02-05 | 2018-08-03 | 广东美的制冷设备有限公司 | Fault detection method, device, air conditioner and computer readable storage medium |
| CN109114732A (en) * | 2018-08-13 | 2019-01-01 | 广东美的制冷设备有限公司 | Control method, device and the air conditioner of air conditioner |
| CN112567181A (en) * | 2018-08-24 | 2021-03-26 | 夏普株式会社 | Air conditioner system, control method for air conditioner system, and air conditioner system control program |
| CN109297136A (en) * | 2018-11-14 | 2019-02-01 | 宁波奥克斯电气股份有限公司 | A kind of expansion valve blocking determination method and air conditioner |
| CN110173810A (en) * | 2019-05-27 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN110967207A (en) * | 2019-12-04 | 2020-04-07 | 常州大学 | Welding and plugging performance detection method for integral heat pump water heater system |
| CN111895613A (en) * | 2020-07-24 | 2020-11-06 | 海信（山东）空调有限公司 | Control method based on temperature detection and air conditioner |
| CN112113310A (en) * | 2020-08-12 | 2020-12-22 | 珠海格力电器股份有限公司 | Method and device for confirming running state of air conditioner and storage medium |
| CN112082250A (en) * | 2020-08-12 | 2020-12-15 | 珠海格力电器股份有限公司 | Air conditioner installation state detection method and device, storage medium and air conditioner |
| CN112113310B (en) * | 2020-08-12 | 2021-10-22 | 珠海格力电器股份有限公司 | Method and device for confirming running state of air conditioner and storage medium |
| CN112082250B (en) * | 2020-08-12 | 2022-01-14 | 珠海格力电器股份有限公司 | Air conditioner installation state detection method and device, storage medium and air conditioner |
| CN113531773A (en) * | 2021-06-18 | 2021-10-22 | 宁波奥克斯电气股份有限公司 | Multi-connected air conditioner fault detection method and device and multi-connected air conditioner |
| CN113847705A (en) * | 2021-09-30 | 2021-12-28 | 广东美的制冷设备有限公司 | Air conditioner, quick detection method and device thereof and storage medium |
| CN114608141A (en) * | 2022-03-07 | 2022-06-10 | 浙江中烟工业有限责任公司 | Valve leakage diagnosis method and device for process air conditioning unit |
| CN114608141B (en) * | 2022-03-07 | 2023-12-01 | 浙江中烟工业有限责任公司 | Valve leakage diagnosis method and device for process air conditioning unit |
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