CN106403189A - Detection method for refrigerant leakage of air conditioner and air conditioner - Google Patents
Detection method for refrigerant leakage of air conditioner and air conditioner Download PDFInfo
- Publication number
- CN106403189A CN106403189A CN201610867993.1A CN201610867993A CN106403189A CN 106403189 A CN106403189 A CN 106403189A CN 201610867993 A CN201610867993 A CN 201610867993A CN 106403189 A CN106403189 A CN 106403189A
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- air
- air conditioner
- temperature
- conditioning
- detection method
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Classifications
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
- 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
- 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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F2110/12—Temperature of the outside air
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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)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to a detection method for refrigerant leakage of an air conditioner and the air conditioner. The detection method for refrigerant leakage of the air conditioner comprises the following detection steps that the current outdoor environment temperature, the air conditioner return air temperature and the supply air temperature at the set rotating speed are obtained; whether the absolute value of the difference value of the air conditioner return air temperature and the supply air temperature at the set rotating speed meets the set condition or not is judged; and if yes, a control instruction is generated for controlling and sending out a refrigerant leakage signal, so that treatment can be performed in time according to the sent refrigerant leakage signal, the occurrence of safety accidents and the air conditioner failure caused by the refrigerant leakage are prevented, and the function of the domestic air conditioner is optimized. The detection method is low in cost, high in reliability and capable of effectively solving the mutual conflict between the product reliability and cost control.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, to a kind of detection method of air conditioner refrigerant leakage and air-conditioning
Device.
Background technology
Domestic air conditioner often occurs the problem of cold-producing medium leakage during user's use, causes cold-producing medium leakage
Reason has a lot, and cold-producing medium serious leak also brings along a series of rough sledding, such as compressor exhaust temperature rising, cooling system
Or refrigerating capacity deficiency etc..In domestic air-conditioning system, it is often provided with low pressure alarming, alarm for high voltage, anti-frost protection, compressor
Damage, sensor fault, communication failure lamp.But seldom there is special failure code for directly judging that unit cold-producing medium is let out
Leakage, but cold-producing medium leakage is but a failure mode occurred frequently, how effectively monitoring system cold-producing medium has with the presence or absence of leakage
Critically important meaning, this is accomplished by conflicting between our effectively solving product reliability and cost control.
Content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention be solve air conditioning system in prior art cannot effective monitoring system cold-producing medium
The problem of leakage.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of detection method of air conditioner refrigerant leakage, including
The step below detecting：
Obtain current outdoor ambient temperature, air-conditioning return air temperature and wind pushing temperature under setting speed；
Judge whether the absolute difference of air-conditioning return air temperature and wind pushing temperature under setting speed meets condition：|Ti-To|/|
ΔT|<B, if meeting, generating control instruction, sending cold-producing medium leakage signal for controlling；
In formula, TiFor air-conditioning return air temperature, T under setting speedoFor air-conditioning temperature under setting speed, Δ T is at air-conditioning
The difference of the corresponding return air temperature of current outdoor ambient temperature in No leakage situation and under setting speed and wind pushing temperature；B
For the first setting value, and 1>B>0.
Further, the step that the detection method of this air conditioner refrigerant leakage also includes pre-detection, specifically includes：
Obtain current outdoor ambient temperature, operation of air conditioner current value；
Judge whether operation of air conditioner current value meets condition：(IS-I)/IS>A, if meet, perform detection step；
In formula, I is operation of air conditioner current value；ISThe current outdoor ambient temperature being in No leakage situation for air-conditioning is corresponding
Operation of air conditioner current value；A is the second setting value, and 1>A>0.
Further, the span of the second setting value is 20%～30%.
Further, the span of the first setting value is 70%～80%.
Present invention also offers a kind of air-conditioner, for executing the detection method of above-mentioned air conditioner refrigerant leakage.
(3) beneficial effect
The technique scheme of the present invention compared with prior art has the advantage that：Air-conditioning provided in an embodiment of the present invention
The detection method of device cold-producing medium leakage is passed through to obtain the air-conditioning return air temperature under setting speed and wind pushing temperature, then judges that this sets
Whether the absolute difference determining air-conditioning return air temperature and wind pushing temperature under rotating speed meets some requirements, and generates when the conditions are met
Control instruction controls the signal sending cold-producing medium leakage such that it is able to basis sends at the signal of cold-producing medium leakage in time
Reason, prevents from leaking generation and the air-conditioning fault of the security incident causing due to cold-producing medium, optimizes the function of domestic air conditioner, this inspection
Survey method low cost reliability is strong, efficiently solves conflicting between product reliability and cost control.
Brief description
Fig. 1 is the air-conditioner refrigeration of the embodiment of the present invention one offer and the schematic flow sheet of the detection method leaking；
Fig. 2 is the air-conditioner refrigeration of the embodiment of the present invention two offer and the schematic flow sheet of the detection method leaking.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
A kind of detection method of air conditioner refrigerant leakage provided in an embodiment of the present invention, as shown in figure 1, include following inspection
The step surveyed：
S1, obtains current outdoor ambient temperature under setting speed, air-conditioning return air temperature and wind pushing temperature；
S2, judges whether the absolute difference of air-conditioning return air temperature and wind pushing temperature under setting speed meets condition：|Ti-To
|/|ΔT|<B, if meeting, generating control instruction, sending cold-producing medium leakage signal for controlling；Specifically, the cold-producing medium sending
Leakage signal both can be to send the various ways such as alarm sound or bright display lamp to realize cold-producing medium leakage failure report
Alert.
In formula, TiFor air-conditioning return air temperature, T under setting speedoFor air-conditioning temperature under setting speed, Δ T is at air-conditioning
The difference of the corresponding return air temperature of current outdoor ambient temperature in No leakage situation and under setting speed and wind pushing temperature；B
For the first setting value, and 1>B>0.Preferably, the span of the first setting value in the present embodiment be 70%～80%, that is, when
The absolute difference of front air-conditioning return air temperature and wind pushing temperature be reduced to No leakage in the case of return air temperature and wind pushing temperature
Absolute difference 70%～80% when, regard as existing substantial amounts of leakage needs and processed in time.
It should be noted that the present embodiment hollow is mediated in No leakage situation and the current outdoor environment under setting speed
The corresponding return air temperature of temperature is to carry out experimental test according to different air conditioner type to obtain from the difference of wind pushing temperature, leads to
Overtesting test determine the air-conditioning of No leakage situation obtain the difference of return air temperature and wind pushing temperature and outdoor environment temperature and
The corresponding relation of setting speed.
It should be noted that obtain in the present embodiment is air-conditioning return air temperature and wind pushing temperature namely sky under setting speed
Tune is maintained under an operational mode, carries out air-conditioning return air temperature and the acquisition of wind pushing temperature during locking indoor set rotating speed.
It should be noted that obtaining air-conditioning return air temperature and the mode of wind pushing temperature both can be to be passed by the temperature of setting
Sensor is detected or is transferred real-time air-conditioning return air temperature and wind pushing temperature from other programs.
The detection method of air conditioner refrigerant leakage provided in an embodiment of the present invention is passed through to obtain the air-conditioning under setting speed
Whether return air temperature and wind pushing temperature, then judge the absolute difference of air-conditioning return air temperature and wind pushing temperature under this setting speed
Meet some requirements, generate control instruction when the conditions are met and control the signal sending cold-producing medium leakage such that it is able in time
Ground is processed according to the signal sending cold-producing medium leakage, prevents from leaking generation and the sky of the security incident causing due to cold-producing medium
Adjust fault, optimize the function of domestic air conditioner, this detection method low cost reliability is strong, efficiently solve product reliability with
Conflicting between cost control.
Embodiment two
The embodiment of the present invention two provides a kind of detection method of air conditioner refrigerant leakage, in including embodiment one
While detecting step, the step that also includes pre-detection, as shown in Fig. 2 the concrete steps of detection method that embodiment two provides
As follows：
S01, obtains current outdoor ambient temperature and operation of air conditioner current value；
S02, judges whether operation of air conditioner current value meets condition：(IS-I)/IS>A, if meet, perform detection step；Formula
In, I is operation of air conditioner current value；ISIt is in the current outdoor ambient temperature corresponding operation of air conditioner electricity of No leakage situation for air-conditioning
Flow valuve；A is the second setting value, and 1>A>0；Preferably, in the present embodiment, the span of the second setting value is 20%～30%.
I.e. in the case of the corresponding No leakage of same outdoor environment temperature, operation of air conditioner current value obtains difference with current operation of air conditioner current value
Reach operation of air conditioner current value in the case of No leakage 20%～30% when, regard as existing cold-producing medium leakage risk need into
Enter detecting step.
S1, obtains current outdoor ambient temperature, air-conditioning return air temperature and wind pushing temperature under setting speed；
S2, judges whether the absolute difference of air-conditioning return air temperature and wind pushing temperature under setting speed meets condition：|Ti-To
|/|ΔT|<B, if meeting, generating control instruction, sending cold-producing medium leakage signal for controlling；In formula, TiFor under setting speed
Air-conditioning return air temperature, ToFor air-conditioning temperature under setting speed, Δ T is in No leakage situation and under setting speed for air-conditioning
The corresponding return air temperature of current outdoor ambient temperature and wind pushing temperature difference；B is the first setting value, and 1>B>0.
Only pass through air-conditioning return air temperature in the embodiment of the present invention one and whether wind pushing temperature meet certain condition and judged,
It is possible to occur the situation of erroneous judgement, namely when the condition is satisfied it may be possible to cold-producing medium leakage is it could also be possible that other faults
Cause, in the embodiment of the present invention two, include pre-detection step S01 and S02, the electric current of air-conditioning when cold-producing medium has leakage
Can reduce, by pre-detection can first to the need of carry out cold-producing medium leakage carry out detection carry out one pre- judge, a side
Face avoids the step carrying out cold-producing medium Leak Detection always, increases airconditioning control burden, another aspect pre-detection and detection two
Secondary judgement ensure that during the control instruction sending cold-producing medium leakage, rather than the return air temperature that causes of other fault and wind pushing temperature
Absolute difference reduce, decrease the probability of erroneous judgement.
It should be noted that the present embodiment hollow is mediated in No leakage situation and the corresponding air-conditioning of current outdoor ambient temperature
Running current value is to carry out experimental test according to different air conditioner type to obtain, and determines No leakage situation by experimental test
Air-conditioning obtain the corresponding relation of operation of air conditioner current value and outdoor environment temperature and setting speed, such as T1～T2 DEG C of room
In external environment temperature range, with △, t1 DEG C is interval, each interval corresponding difference current value；In refrigeration mode, in T3～T4
In the range of DEG C outdoor environment temperature, with △, t2 DEG C is interval, each interval corresponding difference current values.
It should be noted that obtaining air-conditioning return air temperature and the mode of wind pushing temperature both can be to be passed by the temperature of setting
Sensor is detected or is transferred real-time air-conditioning return air temperature and wind pushing temperature from other programs.
Embodiment three
The embodiment of the present invention additionally provides a kind of air-conditioner, and the air-conditioner for executing embodiment one or embodiment two freezes
The detection method of agent leakage.
For this air-conditioner, for executing detection method mentioned above, thus identical technology can be solved and ask
Topic, reaches identical technique effect, detailed content refers to embodiment one～embodiment two, will not be described here.
Finally it should be noted that：Above example only in order to technical scheme to be described, is not intended to limit；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (5)
1. a kind of detection method of air conditioner refrigerant leakage is it is characterised in that include the following step detecting：
Obtain current outdoor ambient temperature, air-conditioning return air temperature and wind pushing temperature under setting speed；
Judge whether the absolute difference of air-conditioning return air temperature and wind pushing temperature under setting speed meets condition：|Ti-To|/|ΔT|
<B, if meeting, generating control instruction, sending cold-producing medium leakage signal for controlling；
In formula, TiFor air-conditioning return air temperature, T under setting speedoFor air-conditioning temperature under setting speed, Δ T is in no for air-conditioning
Leakage situation and the difference of the corresponding return air temperature of current outdoor ambient temperature under setting speed and wind pushing temperature；B is the
One setting value, and 1>B>0.
2. the detection method of air conditioner refrigerant leakage according to claim 1 is it is characterised in that also include pre-detection
Step, specifically includes：
Obtain current outdoor ambient temperature and operation of air conditioner current value；
Judge whether operation of air conditioner current value meets condition：(IS-I)/IS>A, if meet, perform detection step；
In formula, I is operation of air conditioner current value；ISIt is in the corresponding air-conditioning of current outdoor ambient temperature of No leakage situation for air-conditioning
Running current value；A is the second setting value, and 1>A>0.
3. air conditioner refrigerant according to claim 2 leakage detection method it is characterised in that：The taking of second setting value
Value scope is 20%～30%.
4. air conditioner refrigerant according to claim 1 leakage detection method it is characterised in that：The taking of first setting value
Value scope is 70%～80%.
5. a kind of air-conditioner it is characterised in that：Require the air conditioner refrigerant leakage described in 1～4 any one for perform claim
Detection method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867993.1A CN106403189A (en) | 2016-09-29 | 2016-09-29 | Detection method for refrigerant leakage of air conditioner and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867993.1A CN106403189A (en) | 2016-09-29 | 2016-09-29 | Detection method for refrigerant leakage of air conditioner and air conditioner |
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| Publication Number | Publication Date |
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| CN106403189A true CN106403189A (en) | 2017-02-15 |
Family
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| CN201610867993.1A Pending CN106403189A (en) | 2016-09-29 | 2016-09-29 | Detection method for refrigerant leakage of air conditioner and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895561A (en) * | 2017-02-28 | 2017-06-27 | 广东美的制冷设备有限公司 | A kind of method, control device and air-conditioner of air-conditioner for detecting air-conditioner coolant leakage |
| CN110715397A (en) * | 2019-10-18 | 2020-01-21 | 广东美的制冷设备有限公司 | Refrigerant leakage detection method and system of air conditioner and air conditioner |
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Application publication date: 20170215 |
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