CN109539456A - A kind of guard method of air conditioner room unit and device - Google Patents
A kind of guard method of air conditioner room unit and device Download PDFInfo
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- CN109539456A CN109539456A CN201710862030.7A CN201710862030A CN109539456A CN 109539456 A CN109539456 A CN 109539456A CN 201710862030 A CN201710862030 A CN 201710862030A CN 109539456 A CN109539456 A CN 109539456A
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- air conditioner
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- conditioner room
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Abstract
The present invention relates to a kind of guard method of air conditioner room unit and devices.The guard method of the air conditioner room unit are as follows: indoor machine evaporation initial temperature T when testing air conditioner device brings into operation respectivelyZ0, air conditioner continuous operating time reach testing time tCIndoor machine evaporation real time temperature T afterwardsZ1With indoor environment real time temperature TN1, according to TZ0、TZ1And TN1Numerical value difference, determine that air conditioner with the presence or absence of abnormal, when determining that result is exception, then stops the operation of air conditioner.The present invention can be for installing fault bring air conditioner damage risk by air conditioner valve; it is effectively detected and is protected; avoid and run in the state that valve is unopened due to air conditioner, and caused by refrigerant can not normal circulation and cooler compressor burn damage.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to a kind of guard method of air conditioner room unit and device.
Background technique
With the development of science and technology with the increasingly raising of people's living standard, the sky with temperature adjusting and ventilatory of blowing
Device is adjusted to obtain being widely used further in many occasions.
Air conditioner at work, to be discharged when being liquefied (becoming liquid from gas) using substance heat and vaporized species (by
Liquid becomes gas) when to absorb the basic principle of heat.
When starting refrigerating function, the gas for the high temperature and pressure being discharged from compressor enters condenser, in outdoor condenser
In absorb heat and become the liquid of high normal pressure and temperature, subsequently into throttle valve by being depressured, become the liquid of low-pressure low-temperature, then into
The heat for entering the evaporator absorption room in room becomes the gas of low pressure room temperature, is then sucked by compressor, and in cycles
Circulation.
When starting heat-production functions, the gas for the high pressure-temperature being discharged from compressor is directly entered the condenser in room,
Heat release absorbs cooling capacity in room, becomes the liquid of high normal pressure and temperature, becomes the liquid of low-pressure low-temperature through being depressured into throttle valve, then
It is sucked by the gas that the heat outside the evaporator absorption chamber of outdoor unit becomes low pressure room temperature by compressor, and following in cycles
Ring.
The installation personnel of air conditioner needs to be respectively completed the installation of indoor unit and outdoor unit when carrying out air conditioner installation,
And complete the installation and connection of all kinds of pipelines, valve and cable circuit.In above-mentioned installation process, it is related to many process and step
Suddenly, inevitably there is operation error or omission in installation personnel.For example, installation personnel is forgotten to open the valve of valve in opertions engineering
Door.There are two valves for the compressor of air-conditioning: drain tap (low pressure valve) and admission air valve (high pressure valve).If air-conditioning valve not by
It is run in the state of opening, is not only unable to complete the normal circulation of refrigerant, and be easy to lead to the burning of cooler compressor
It damages bad.
However, lacking the method and system that a kind of pair of above problem is detected and protected in the prior art.Thus, going out
When existing above-mentioned installation fault, air conditioner can not be detected effectively, and enter corresponding protection mechanism.
Summary of the invention
To overcome defect and deficiency existing in the prior art, the invention discloses a kind of protection sides of air conditioner room unit
Method and device.
The invention is realized by the following technical scheme:
A kind of guard method of air conditioner room unit, which comprises the following steps:
One of selection heating or refrigerating function bring into operation after the starting of S1 air conditioner；
Indoor machine evaporation initial temperature T when S2 record air conditioner brings into operationZ0；
S3 air conditioner continuous operating time reaches testing time tCAfterwards, indoor machine evaporation real time temperature T is measuredZ1The interior and
Environment real time temperature TN1；
S4 is according to TZ1With TN1Numerical value difference and TZ0With TZ1Numerical value difference, determine air conditioner with the presence or absence of abnormal；
Wherein, work as TZ1With TN1Absolute value of the difference | TZ1-TN1| it is less than or equal to first threshold X1, and TZ1With TZ0Difference
Absolute value | TZ1-TZ0| it is less than or equal to second threshold X2, then determining air conditioner, there are exceptions described in step S4.
Further, the first threshold X1With second threshold X2It is equal.
Further, the judgement result described in the step S4 is to exist abnormal, successively executes step S5 and S6:
S5 carries out stoppage protection to air conditioner room unit；
S6 is again started up air conditioner, and by successively executing step S1 to S4 again, determines air conditioner with the presence or absence of abnormal；
Wherein, when the judgement result of step S4 and S6 are all then to determine that there are failures for air conditioner in the presence of exception.
Further, the guard method of the also described air conditioner room unit further includes step S7:
For S7 when determining air conditioner there are failure, the air conditioner room unit issues fault cues.
The execution time t of the further stoppage protectionbFor 3min.
A kind of protective device of air conditioner room unit, characterized by comprising:
First temperature sensor, for detecting indoor environment real time temperature TN1；
Second temperature sensor, for detecting indoor machine evaporation initial temperature TZ0With indoor machine evaporation real time temperature
TZ1；
Judgment module, for according to TZ0、TZ1And TN1Numerical value difference, judge whether there is exception.
Further, first temperature sensor measurement is set to the air inlet of air conditioner room unit, second temperature
Degree sensor measurement is set on the middle part coil pipe of air conditioner room unit evaporator.
Further, the protective device of the air conditioner room unit, further includes: output module, the output module are used
In output fault cues.
Further, the output module is air conditioner display panel.
Compared with prior art, the present invention the advantage is that: can be for by installation personnel faulty operation bring air conditioner
Valve installation fault, is effectively detected and early warning, avoids and run in the state that valve is unopened due to air conditioner, and
Caused by refrigerant can not normal circulation and cooler compressor burn damage.
Detailed description of the invention
Fig. 1: the guard method flow chart of air conditioner room unit of the present invention；
Fig. 2: the flow chart of fault verification is carried out using the guard method of air conditioner room unit of the present invention；
Fig. 3: the flow chart of Example 1 and Example 2 of the present invention；
Fig. 4: the composition schematic diagram of the protective device of air conditioner room unit of the present invention.
Specific embodiment
The present invention provides a kind of guard methods of air conditioner room unit, it is characterised in that: testing air conditioner device starts respectively
Indoor machine evaporation initial temperature T when operationZ0, air conditioner continuous operating time reach testing time tCIndoor unit evaporation afterwards
Device real time temperature TZ1With indoor environment real time temperature TN1, according to TZ0、TZ1And TN1Numerical value difference, determine air conditioner whether there is
It is abnormal, when determining that result is exception, then stop the operation of air conditioner.
Be using the principle that the above method is protected: in cooling mode, when valve is opened, refrigerant follows air conditioner
When ring is normal, refrigerant evaporates in heat exchanger indoors, exchanges heat with environment, completes cooling capacity output.Air conditioner room unit changes at this time
The temperature of hot device coil pipe will be far smaller than environment temperature；When valve is unopened, and refrigerant is unable to complete circulation, refrigerant without
Method completes evaporation, no cooling capacity output in heat exchanger indoors.The temperature of air conditioner room unit heat exchanger coils and environment temperature at this time
It spends substantially suitable；Air conditioner in a heating mode, when valve open refrigerant circulation it is normal when, refrigerant is cold in heat exchanger indoors
It is solidifying, it exchanges heat with environment, completes heat output.The temperature of air conditioner room unit heat exchanger coils will be far longer than environment temperature at this time
Degree；When valve is unopened, and refrigerant is unable to complete circulation, refrigerant can not complete condensation, no heat in heat exchanger indoors
Amount output.Air conditioner room unit heat exchanger coils temperature is substantially suitable with environment temperature at this time.Therefore, difference testing air conditioner device
Indoor machine evaporation initial temperature T when bringing into operationZ0, air conditioner continuous operating time reach testing time tCIndoor unit afterwards
Evaporator real time temperature TZ1With indoor environment real time temperature TN1, can be according to TZ0、TZ1And TN1The numerical value difference of three, is sentenced
It is fixed.Specifically, when boot running time reaches testing time tCIndoor machine evaporation real time temperature T afterwardsZ1With indoor environment reality
Shi Wendu TN1Difference is not up to certain numerical value, and indoor machine evaporation real time temperature TZ1With indoor machine evaporation initial temperature
TZ0Difference be also not up to certain numerical value, then illustrate that air conditioner fails normally to exercise its refrigeration or heat-production functions.
As described in Fig. 1, the guard method of air conditioner room unit provided by the invention, comprising the following steps:
One of selection heating or refrigerating function bring into operation after the starting of S1 air conditioner；
Indoor machine evaporation initial temperature T when S2 record air conditioner brings into operationZ0；
S3 air conditioner continuous operating time reaches testing time tCAfterwards, indoor machine evaporation real time temperature T is measuredZ1The interior and
Environment real time temperature TN1；
S4 is according to TZ1With TN1Numerical value difference and TZ0With TZ1Numerical value difference, determine air conditioner with the presence or absence of abnormal；
Wherein, work as TZ1With TN1Absolute value of the difference | TZ1-TN1| it is less than or equal to first threshold X1, and TZ1With TZ0Difference
Absolute value | TZ1-TZ0| it is less than or equal to second threshold X2, then determining air conditioner, there are exceptions described in step S4.
The testing time tCIt can be designed and adjust according to the actual situation.Preferably, the testing time tCFor
2min。
The first threshold X1With second threshold X2It can be designed and adjust according to the actual situation.Preferably, described first
Threshold X1With second threshold X2It is equal.The present invention in one embodiment, the first threshold X1With second threshold X2For
2°。
As described in attached drawing 2, the present invention in one embodiment, the judgement result described in the step S4 is there are different
Often, step S5 and S6 are successively executed:
S5 carries out stoppage protection to air conditioner room unit；
S6 is again started up air conditioner, and by successively executing step S1 to S4 again, determines air conditioner with the presence or absence of abnormal；
Wherein, when the judgement result of step S4 and S6 are all then to determine that there are failures for air conditioner in the presence of exception.
The present invention in one embodiment, the guard method of the air conditioner room unit can also include step S7:
For S6 when determining air conditioner there are failure, the air conditioner room unit issues fault cues.Specifically, the failure mentions
Showing can be shown by air conditioner display panel, or be reminded in the form of sound by devices such as buzzers, or pass through LED
The devices such as lamp are reminded with light emitting species.
The present invention in one embodiment, the execution time t of the stoppage protectionbIt may be set to 3min.
Below in conjunction with attached drawing 3 and embodiment 1,2, invention is further explained.
Embodiment 1
As shown in Fig. 3, after air conditioner starts heating mode, indoor unit when record air conditioner brings into operation first steams
Send out device initial temperature TZ0, when air conditioner continuous operating time reaches testing time tCAfterwards, indoor machine evaporation real time temperature is measured
TZ1With indoor environment real time temperature TN1.Judge TZ1-TN1Numerical value whether be less than or equal to 2, work as TZ1-TN1Numerical value be less than or wait
In 2, T is judged againZ1-TZ0Numerical value whether be less than or equal to 2.If judging result is "Yes" twice, shutdown guarantor is carried out
Shield.If any one in judging result is "No" twice, air conditioner is operated normally.
Embodiment 2
As shown in Fig. 3, after air conditioner starts refrigeration mode, indoor unit when record air conditioner brings into operation first steams
Send out device initial temperature TZ0, when air conditioner continuous operating time reaches testing time tCAfterwards, indoor machine evaporation real time temperature is measured
TZ1With indoor environment real time temperature TN1.Judge TN1-TZ1Numerical value whether be less than or equal to 2, work as TN1-TZ1Numerical value be less than or wait
In 2, T is judged againZ0-TZ1Numerical value whether be less than or equal to 2.If judging result is "Yes" twice, shutdown guarantor is carried out
Shield.If any one in judging result is "No" twice, air conditioner is operated normally.
As shown in Fig. 4, the invention also includes a kind of protective devices of air conditioner room unit, characterized by comprising:
First temperature sensor, for detecting indoor environment real time temperature TN1；
Second temperature sensor, for detecting indoor machine evaporation initial temperature TZ0With indoor machine evaporation real time temperature
TZ1；
Judgment module, for according to TZ0、TZ1And TN1Numerical value difference, judge whether there is exception.
Preferably, first temperature sensor measurement is set to the air inlet of air conditioner room unit, the second temperature
Sensor measurement is set on the middle part coil pipe of air conditioner room unit evaporator.
The protective device of air conditioner room unit of the present invention, can also include: output module, and the output module is used for
Export fault cues.The output module is any one in air conditioner display panel, buzzer or LED light.
Obviously, above-described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, those of ordinary skill in the art without creative efforts to these embodiments carry out it is various
Variation, modification, replacement and improvement, should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of guard method of air conditioner room unit, which comprises the following steps:
One of selection heating or refrigerating function bring into operation after the starting of S1 air conditioner；
Indoor machine evaporation initial temperature T when S2 record air conditioner brings into operationZ0；
S3 air conditioner continuous operating time reaches testing time tCAfterwards, indoor machine evaporation real time temperature T is measuredZ1And indoor environment
Real time temperature TN1；
S4 is according to TZ1With TN1Numerical value difference and TZ0With TZ1Numerical value difference, determine air conditioner with the presence or absence of abnormal；
Wherein, work as TZ1With TN1Absolute value of the difference | TZ1-TN1| it is less than or equal to first threshold X1, and TZ1With TZ0Difference it is exhausted
To value | TZ1-TZ0| it is less than or equal to second threshold X2, then determining air conditioner, there are exceptions described in step S4.
2. the guard method of air conditioner room unit according to claim 1, which is characterized in that the first threshold X1With
Two threshold Xs2It is equal.
3. the guard method of air conditioner room unit according to claim 1, which is characterized in that the judgement described in the step S4
As a result abnormal to exist, successively execute step S5 and S6:
S5 carries out stoppage protection to air conditioner room unit；
S6 is again started up air conditioner, and by successively executing step S1 to S4 again, determines air conditioner with the presence or absence of abnormal；
Wherein, when the judgement result of step S4 and S6 are all then to determine that there are failures for air conditioner in the presence of exception.
4. the guard method of air conditioner room unit according to claim 3, which is characterized in that further include step S7:
For S7 when determining air conditioner there are failure, the air conditioner room unit issues fault cues.
5. the guard method of air conditioner room unit according to claim 3, which is characterized in that the execution of the stoppage protection
Time tbFor 3min.
6. a kind of protective device of air conditioner room unit, characterized by comprising:
First temperature sensor, for detecting indoor environment real time temperature TN1；
Second temperature sensor, for detecting indoor machine evaporation initial temperature TZ0With indoor machine evaporation real time temperature TZ1；
Judgment module, for according to TZ0、TZ1And TN1Numerical value difference, judge whether there is exception.
7. the protective device of air conditioner room unit according to claim 6, it is characterised in that: first temperature sensor
Measure setup is in the air inlet of air conditioner room unit, and the second temperature sensor measure setup is in air conditioner room unit evaporator
Middle part coil pipe on.
8. the protective device of air conditioner room unit according to claim 6, which is characterized in that further include: output module, institute
Output module is stated for exporting fault cues.
9. the protective device of air conditioner room unit according to claim 8, which is characterized in that the output module is air-conditioning
Device display panel.
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| CN201710862030.7A CN109539456A (en) | 2017-09-21 | 2017-09-21 | A kind of guard method of air conditioner room unit and device |
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| CN201710862030.7A CN109539456A (en) | 2017-09-21 | 2017-09-21 | A kind of guard method of air conditioner room unit and device |
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ID=65823452
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470038A (en) * | 2019-08-21 | 2019-11-19 | 南京天加环境科技有限公司 | A kind of judgement and guard method that unit air-conditioner booting is abnormal |
| CN110469953A (en) * | 2019-08-26 | 2019-11-19 | 广东美的制冷设备有限公司 | Detection method, air conditioner and the medium of the exhaust gas temperature sensor of air conditioner |
| CN110645673A (en) * | 2019-10-16 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for fixed-frequency air conditioner |
| CN111623483A (en) * | 2020-04-28 | 2020-09-04 | 海信（山东）空调有限公司 | Air conditioner and protection method thereof |
| CN113124539A (en) * | 2021-05-14 | 2021-07-16 | 宁波奥克斯电气股份有限公司 | Automatic protection control method and device for unopened air conditioner valve and air conditioner |
| CN114110921A (en) * | 2020-08-28 | 2022-03-01 | 广东美的制冷设备有限公司 | Method and device for detecting installation state of temperature sensing bulb, ducted air conditioner and medium |
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| CN114110921A (en) * | 2020-08-28 | 2022-03-01 | 广东美的制冷设备有限公司 | Method and device for detecting installation state of temperature sensing bulb, ducted air conditioner and medium |
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| CN113124539A (en) * | 2021-05-14 | 2021-07-16 | 宁波奥克斯电气股份有限公司 | Automatic protection control method and device for unopened air conditioner valve and air conditioner |
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