CN202442730U - Detection device and detection system for air conditioner refrigerant - Google Patents
Detection device and detection system for air conditioner refrigerant Download PDFInfo
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- CN202442730U CN202442730U CN2012200669587U CN201220066958U CN202442730U CN 202442730 U CN202442730 U CN 202442730U CN 2012200669587 U CN2012200669587 U CN 2012200669587U CN 201220066958 U CN201220066958 U CN 201220066958U CN 202442730 U CN202442730 U CN 202442730U
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- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 239000003507 refrigerant Substances 0.000 title claims abstract description 53
- 239000002826 coolant Substances 0.000 claims description 47
- 238000012360 testing method Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000005856 abnormality Effects 0.000 abstract 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 28
- 229910052731 fluorine Inorganic materials 0.000 description 28
- 239000011737 fluorine Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 26
- 238000010586 diagram Methods 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000009530 blood pressure measurement Methods 0.000 description 8
- 238000004781 supercooling Methods 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The utility model discloses a detection apparatus and detecting system of air conditioner refrigerant. Wherein, detection device includes: the first detection unit is used for detecting whether the air conditioner has insufficient refrigerant; the second detection unit is used for detecting whether the air conditioner has the abnormality of the refrigerant pipe of the outdoor unit; the third detection unit is used for detecting whether the air conditioner has the abnormality of the indoor machine refrigerant pipe; the fourth detection unit is used for detecting whether the air conditioner has excessive refrigerants or not; and the first judging unit is used for judging that the refrigerant state of the air conditioner is proper when the detection results of the first detecting unit, the second detecting unit, the third detecting unit and the fourth detecting unit are negative. Through the utility model discloses, it is loaded down with trivial details to have solved the detection mode of air conditioner refrigerant state among the prior art, problem that inefficiency, and then has reached the detection mode of simplifying the air conditioner refrigerant, improves detection efficiency's effect.
Description
Technical field
The utility model relates to the air conditioner field, in particular to a kind of pick-up unit and detection system of air-conditioner coolant.
Background technology
At present, in the product development of air conditioner,, generally all in air conditioner, developed the function of refrigerant automatic filling,, need comprehensively detect automatic filling in order to guarantee the q&r of refrigerant automatic filling for guaranteeing the normal operation of air conditioner.And present test job is mainly accomplished by manual work test in every particular, wastes time and energy, and work efficiency is low, and if automatic filling breaks down, when carrying out operation by manual work, the trouble spot is easy-to-search not, debug difficulties.
Loaded down with trivial details to air-conditioner coolant status detection mode in the correlation technique, the problem of inefficiency does not propose effective solution at present as yet.
The utility model content
The fundamental purpose of the utility model is to provide a kind of pick-up unit and detection system of air-conditioner coolant, and is loaded down with trivial details with air-conditioner coolant status detection mode in the solution prior art, the problem of inefficiency.
To achieve these goals, according to the one side of the utility model, a kind of pick-up unit of air-conditioner coolant is provided, has comprised: first detecting unit is used to detect air conditioner and whether has cold medium shortage; Whether second detecting unit is used to detect air conditioner and exists off-premises station refrigerant pipe unusual; Whether the 3rd detecting unit is used to detect air conditioner and exists the indoor-unit cooling-medium pipe unusual; Whether the 4th detecting unit is used to detect air conditioner and exists refrigerant excessive; And first judging unit; Be connected respectively with first detecting unit, second detecting unit, the 3rd detecting unit and the 4th detecting unit, be used for when the testing result of first detecting unit, second detecting unit, the 3rd detecting unit and the 4th detecting unit is not, judging that the refrigerant state of air conditioner is suitable.
Further, pick-up unit also comprises: the 5th detecting unit is used to detect outdoor environment temperature; Second judging unit is connected with the 5th detecting unit, is used to judge that whether outdoor environment temperature is more than or equal to the 15 preset temperature; First confirms the unit, is connected with second judging unit, is used for when judging outdoor environment temperature more than or equal to the 15 preset temperature, confirming that air conditioner is in the refrigerating operaton state; And second confirm to be connected with second judging unit unit, is used for when judging outdoor environment temperature less than the 15 preset temperature, confirming that air conditioner is in the heating operation state.
Further, pick-up unit also comprises display unit, and display unit is connected respectively with first detecting unit, second detecting unit, the 3rd detecting unit and the 4th detecting unit, is used to show that each detecting unit carries out the result that air conditioner detects gained.
To achieve these goals, according to the utility model on the other hand, a kind of detection system of air-conditioner coolant is provided, has comprised: air conditioner; And any pick-up unit of being provided of the utility model foregoing.
Through the utility model, adopt the pick-up unit that comprises following structure: first detecting unit is used to detect air conditioner and whether has cold medium shortage; Whether second detecting unit is used to detect air conditioner and exists off-premises station refrigerant pipe unusual; Whether the 3rd detecting unit is used to detect air conditioner and exists the indoor-unit cooling-medium pipe unusual; Whether the 4th detecting unit is used to detect air conditioner and exists refrigerant excessive; And first judging unit that is connected with each detecting unit, be used for when the testing result of first detecting unit, second detecting unit, the 3rd detecting unit and the 4th detecting unit is not, judging that the refrigerant state of air conditioner is suitable.Through to the whether suitable classification and Detection of carrying out of air-conditioner coolant state, avoided the repetition of testing process, and; If air conditioner breaks down when automatic filling; Then can orient the trouble spot of air conditioner when automatic filling according to the result of all kinds of detections rapidly and accurately, it is loaded down with trivial details to have solved in the prior art air-conditioner coolant status detection mode, the problem of inefficiency; And then reached the detection mode of simplifying air-conditioner coolant, improve the effect of detection efficiency.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the synoptic diagram according to the pick-up unit of the utility model embodiment;
Fig. 2 is the process flow diagram according to the detection method of the utility model embodiment;
Fig. 3 is a process flow diagram of confirming conditioners running conditions according to the detection method of the utility model embodiment;
Fig. 4 carries out air conditioner according to the detection method of the utility model embodiment when the air conditioner refrigerating operaton to owe the process flow diagram that fluorine detects;
Fig. 5 carries out the process flow diagram that the air-conditioner outdoor unit pipeline detects when the air conditioner refrigerating operaton according to the detection method of the utility model embodiment;
Fig. 6 carries out the process flow diagram that the air conditioner room unit pipeline detects when the air conditioner refrigerating operaton according to the detection method of the utility model embodiment;
Fig. 7 carries out air conditioner according to the detection method of the utility model embodiment when the air conditioner refrigerating operaton to cross the process flow diagram that fluorine detects;
Fig. 8 carries out air conditioner according to the detection method of the utility model embodiment to owe the process flow diagram that fluorine detects when air conditioner heat-production moves;
Fig. 9 carries out the process flow diagram that the air-conditioner outdoor unit pipeline detects according to the detection method of the utility model embodiment when air conditioner heat-production moves;
Figure 10 carries out the process flow diagram that the air conditioner room unit pipeline detects according to the detection method of the utility model embodiment when air conditioner heat-production moves;
Figure 11 carries out air conditioner according to the detection method of the utility model embodiment to cross the process flow diagram that fluorine detects when air conditioner heat-production moves; And
Figure 12 is the process flow diagram according to the detection method of the utility model preferred embodiment.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
The utility model embodiment provides a kind of pick-up unit of air-conditioner coolant; Fig. 1 is the synoptic diagram according to the pick-up unit of the utility model embodiment; As shown in Figure 1, the pick-up unit of this embodiment comprises: first detecting unit 10, second detecting unit 20, the 3rd detecting unit 30, the 4th detecting unit 40 and first judging unit 50.
First detecting unit 10 is used to detect air conditioner and whether has cold medium shortage.Whether second detecting unit 20 is used to detect air conditioner and exists off-premises station refrigerant pipe unusual.Whether the 3rd detecting unit 30 is used to detect air conditioner and exists the indoor-unit cooling-medium pipe unusual.Whether the 4th detecting unit 40 is used to detect air conditioner and exists refrigerant excessive.Particularly, after pick-up unit and air conditioner start, the pick-up unit host computer issues debug command, and the pick-up unit controller moves automatically, and " automatic filling operation " module of unit is carried out classification and Detection.
When the testing result of first detecting unit 10, second detecting unit 20, the 3rd detecting unit 30 and the 4th detecting unit 40 was not, first judging unit 50 judged that the refrigerant state of air conditioners is suitable.
Through to the whether suitable classification and Detection of carrying out of air-conditioner coolant state, avoided the repetition of observation process, and; If air conditioner breaks down when automatic filling; Then can orient the trouble spot of air conditioner when automatic filling according to the result of all kinds of detections rapidly and accurately, it is loaded down with trivial details to have solved in the prior art air-conditioner coolant status detection mode, the problem of inefficiency; And then reached the detection mode of simplifying air-conditioner coolant, improve the effect of detection efficiency.
Preferably, the pick-up unit of the utility model embodiment also comprises the 5th detecting unit, second judging unit, first definite unit and second definite unit.Carry out at pick-up unit before whether suitable detection of refrigerant state of air conditioner; Can pass through the 5th detection outdoor environment temperature earlier; Then whether (can be as required more than or equal to 20 ℃ by the detected outdoor environment temperature of second judgment unit judges; Be set at other temperature value), if outdoor environment temperature more than or equal to 20 ℃, then first confirms that the unit can confirm that air conditioner is in the refrigerating operaton state; If outdoor environment temperature is less than 20 ℃, then second definite unit can confirm that air conditioner is in the heating operation state.Wherein, being used for each whether suitable detecting unit of classification and Detection air-conditioner coolant state can carry out when air conditioner is in different operation states and the corresponding detecting operation of running status.
Running status through to air conditioner is confirmed; Confirm to carry out the detection method of the pairing air-conditioner coolant of different operational modes to be used in each whether suitable detecting unit of classification and Detection air-conditioner coolant state, reached the effect that improves the air-conditioner coolant accuracy of detection.
Further, the pick-up unit of the utility model embodiment can also comprise display unit, and display unit all is connected with each detecting unit, with the testing result that shows that each detecting unit obtains when detecting whether suitable air-conditioner coolant is.Be convenient to maintenance or installation personnel and in time recognize detection case intuitively.
The utility model embodiment also provides a kind of detection system of air-conditioner coolant, comprises the pick-up unit of any air-conditioner coolant that air conditioner and the utility model embodiment foregoing are provided.
The utility model embodiment also provides a kind of detection method of air-conditioner coolant; This detection method can be carried out through any pick-up unit that the utility model the foregoing description is provided; And this detection method can be applied to comprise the air conditioner of following structure: many off-premises stations, and every off-premises station all is connected with compressor and Duo Tai indoor set; And every indoor set all is connected with electric expansion valve; Fig. 2 is the process flow diagram according to the detection method of the utility model embodiment, and is as shown in Figure 2, and the detection method of this embodiment comprises: A detects: detect air conditioner and whether have cold medium shortage; Whether B detects: detect air conditioner and exist off-premises station refrigerant pipe unusual; Whether C detects: detect air conditioner and exist the indoor-unit cooling-medium pipe unusual; Whether and D detects: detect air conditioner and exist refrigerant excessive; Wherein, if the testing result that A detects, B detects, C detects and D detects is not, judge that then the refrigerant state of air conditioner is suitable; Detection of end; System picks up counting, and stops the automatic filling refrigerant after 6 minutes, and it is out of service that the automatic filling refrigerant finishes after 5 minutes unit.If other situation judges that then the refrigerant of air conditioner is improper, return the beginning detected state, air-conditioner coolant is detected again.
A through the utility model embodiment detects, B detects, C detects and D detect be directed against different objects respectively detection with judgement air-conditioner coolant state; Avoided the repetition of testing process, reached and confirmed the whether suitable effect of refrigerant state efficiently and accurately.
The pick-up unit of the air-conditioner coolant that comes below in conjunction with detection method of the present invention the embodiment of the invention is provided is introduced.
Fig. 3 is the process flow diagram of confirming conditioners running conditions according to the detection method of the utility model embodiment, and is as shown in Figure 3, confirms the running status of air conditioner through following steps:
Detect outdoor environment temperature; Judge that whether outdoor environment temperature is more than or equal to 20 ℃ (can be set at the temperature value that other is satisfied the demand); If outdoor environment temperature is more than or equal to 20 ℃; Confirm that then air conditioner is in the refrigerating operaton state,, confirm that then air conditioner is in the heating operation state if outdoor environment temperature is little 20 ℃.
Running status through to air conditioner is confirmed; Confirm to carry out the detection method of the pairing air-conditioner coolant of different operational modes to be used in each whether suitable detecting unit of classification and Detection air-conditioner coolant state, reached the effect that improves the air-conditioner coolant accuracy of detection.
Fig. 4 carries out air conditioner according to the detection method of the utility model embodiment when the air conditioner refrigerating operaton to owe the process flow diagram that fluorine detects; As shown in Figure 4, when the air conditioner refrigerating operaton, carry out air conditioner and owe fluorine and detect and to comprise: the inlet pipe temperature and the intake air temperature and the delivery temperature that go out to manage aperture, outdoor environment temperature, the residing indoor environment temperature of each indoor set and each compressor of temperature, each indoor set electric expansion valve that detect each indoor set; Carry out corresponding judgement after detecting, comprising: a1 judges, a2 judges, a3 judges, a4 judges and a5 judges.
A1 judges: judge that whether degree of supercooling is less than first preset temperature; Wherein, Degree of supercooling is delivery temperature poor of mean value and first compressor of the delivery temperature of each compressor, and first compressor is any compressor that off-premises station connected in many off-premises stations.Particularly, first preset temperature can be set to 3 ℃.
A2 judges: whether judge the degree of superheat more than or equal to second preset temperature, wherein, the degree of superheat is delivery temperature poor of intake air temperature and first compressor of first compressor; Second preset temperature is confirmed by the difference of the intake air temperature of the inlet pipe temperature-averaging value of indoor set and compressor; Defining second preset temperature is T2, and the inlet pipe temperature-averaging value of indoor set is t1, and the intake air temperature of compressor is t2; Then T2 can be expressed as: T2=h1+k1 (t1-t2), h1 and k1 are dimensionless factor.Particularly, T2=40+2 (t1-t2).
A3 judges: whether the aperture mean value of judging the indoor set electric expansion valve is more than or equal to the first preset aperture.Whether the aperture mean value of perhaps judging the indoor set electric expansion valve is greater than 1/3rd of the maximum opening of indoor set electric expansion valve.Particularly, the first preset aperture can be set to 480 (120) PLS, and the maximum opening of indoor set electric expansion valve is set to 1200 (300) PLS.
A4 judges: judge whether the delivery temperature of first compressor and the difference of outdoor environment temperature are less than or equal to the 3rd preset temperature; Wherein, The 3rd preset temperature confirms that by the residing indoor environment temperature mean value of indoor set defining the 3rd preset temperature is T3, and the residing indoor environment temperature mean value of indoor set is t3; Then T3 can be expressed as: T3=h2+k2 (t3-h3), h2, h3 and k2 are dimensionless factor.Particularly, T3=17+0.2 (t3-27).
A5 judges: whether the intake air temperature of judging first compressor is less than or equal to the 4th preset temperature.Particularly, the 4th preset temperature can be set to-5 ℃.
Wherein, continuous one minute to a1 judge, a2 judges, a3 judges, a4 judges and the a5 Rule of judgment detects, if a1 judges, a2 judges, a3 judges, a4 judges and a5 judge in the judged result of at least two Rule of judgment for being; Judge that then there is cold medium shortage in air conditioner, unit is in the fluorine state of owing, at this moment; Need control " refrigerant super-addition/low pressure measurement valve " to open; Refrigerant can append in system, and the system that all detected when continuous 60 minutes is in and owes the fluorine state, and then unit is out of service; Software prompt shows " whether the refrigerant super-addition tank valve opens " and " possibly there is leakage in system ", carries out this unit after the affirmation again and detects; If a1 judges, a2 judges, a3 judges, a4 judges and a5 have only in judging the judged result of a Rule of judgment be or the judged result that do not have a Rule of judgment for being then to judge the air-conditioner coolant abundance.
Through owing the fluorine detection method in the present embodiment, reached accurate and judged whether air conditioner exists the not enough effect of coolant quantity when refrigerating operaton.
Fig. 5 carries out the process flow diagram that the air-conditioner outdoor unit pipeline detects when the air conditioner refrigerating operaton according to the detection method of the utility model embodiment; When the air conditioner refrigerating operaton, carrying out the detection of air-conditioner outdoor unit pipeline comprises: the middle pipe temperature, outdoor environment temperature, the intake air temperature of each compressor and the delivery temperature and the intake air temperature of the delivery temperature and first condenser that detect first off-premises station; Wherein, First off-premises station is any off-premises station in many off-premises stations, and first condenser is the condenser of first off-premises station; Carry out corresponding judgement after detecting, comprising: b1 judges, b2 judges and b3 judges.
B1 judges: continuous several times judges whether the middle pipe temperature of first off-premises station and the difference of outdoor environment temperature are less than or equal to the 5th preset temperature in first Preset Time.Particularly, can judge whether the middle pipe temperature of off-premises station and the difference of outdoor environment temperature are less than or equal to 5 ℃, that is, the 5th preset temperature can be 5 ℃ in continuous 3 minutes.
B2 judges: whether the difference of intake air temperature of judging the average high pressure of system and first condenser is more than or equal to the 5th preset temperature, and wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor.
B3 judges: whether the difference of delivery temperature of judging the average low pressure of system and first condenser is more than or equal to the 5th preset temperature, and wherein, the average low pressure of system is the mean value of the intake air temperature of each compressor.
Wherein, If b1 judges, b2 judges and b3 judge in the judged result of at least one Rule of judgment for being, judge that then air conditioner exists the first off-premises station refrigerant pipe unusual, identical to the detection method of other off-premises station with detection method principle to first off-premises station; When detecting air conditioner when existing off-premises station refrigerant pipe unusual; Complete machine is out of service, and " refrigerant super-addition/low pressure measurement valve " closes, and carries out the off-premises station pipeline after the affirmation again and detects.
Detect through the off-premises station pipeline among the utility model embodiment: reached the effect whether accurate off-premises station refrigerant pipeline of judging air conditioner air conditioner when refrigerating operaton exists fault.
Fig. 6 carries out the process flow diagram that the air conditioner room unit pipeline detects when the air conditioner refrigerating operaton according to the detection method of the utility model embodiment; As shown in Figure 6; When the air conditioner refrigerating operaton, carrying out the detection of air conditioner room unit pipeline comprises: the aperture that goes out to manage temperature and inlet pipe temperature and each indoor set electric expansion valve that detects each indoor set; Carry out corresponding judgement after detecting, comprising: c1 judges, c2 judges, c3 judges and c4 judges.
C1 judges: whether in first Preset Time, connect the difference that goes out to manage temperature and inlet pipe temperature reading repeatedly to judge first indoor set more than or equal to the 6th preset temperature, wherein, first indoor set is any indoor set in many indoor sets.Whether the difference that goes out to manage temperature and inlet pipe temperature of particularly, judging first indoor set in continuous 3 minutes is more than or equal to 10 ℃.
C2 judges: whether the aperture of judging the first indoor set electric expansion valve is more than or equal to the second preset aperture.Particularly, the second preset aperture can be set to 400PLS.
Wherein, If the judged result of c1 judgement and two Rule of judgment of c2 judgement is be; Judge that then the corresponding automatic filling of air conditioner refrigerating operaton exists the first indoor-unit cooling-medium pipe unusual, identical to the detection method of other indoor set with detection method principle to first indoor set, when detecting air conditioner when existing the indoor-unit cooling-medium pipe unusual; Complete machine is out of service; " refrigerant super-addition/low pressure measurement valve " closes, and the pick-up unit circulation shows address and the malfunction that has the unusual indoor set of pipeline, carries out the detection of indoor set after the affirmation again.
Detect through the indoor set pipeline among the utility model embodiment, reached accurate and judged whether air conditioner indoor-unit cooling-medium pipeline of air conditioner when refrigerating operaton exists the effect of fault.
Fig. 7 carries out air conditioner according to the detection method of the utility model embodiment when the air conditioner refrigerating operaton to cross the process flow diagram that fluorine detects; As shown in Figure 7; When the air conditioner refrigerating operaton, carrying out air conditioner crosses fluorine and detects and to comprise: the intake air temperature and the delivery temperature that detect aperture, outdoor environment temperature, the residing indoor environment temperature of each indoor set and each compressor of each indoor set electric expansion valve; Detect and finish to carry out corresponding judgment afterwards, comprising: d1 judges, d2 judges and d3 judges.
D1 judges: judge that whether degree of supercooling is more than or equal to the 7th preset temperature; Wherein, Degree of supercooling is delivery temperature poor of mean value and first compressor of the delivery temperature of each compressor, and first compressor is any compressor that off-premises station connected in many off-premises stations.Particularly, the 7th preset temperature can be set to 8 ℃.
D2 judges: whether the aperture mean value of judging the indoor set electric expansion valve is less than or equal to the 3rd preset aperture.Whether the aperture mean value of perhaps judging the indoor set electric expansion valve is less than 1/3rd of the maximum opening of indoor set electric expansion valve.Particularly, the 3rd preset aperture can be set to 90PLS, and the maximum opening of indoor set electric expansion valve is set to 480 (120) PLS.
D3 judges: whether the difference of judging average high pressure of system and outdoor environment temperature is more than or equal to the 8th preset temperature, and wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor; Wherein, The 8th preset temperature confirms that by the residing indoor environment temperature mean value of indoor set defining the 8th preset temperature is T4, and the residing indoor environment temperature mean value of indoor set is t3; Then T4 can be expressed as: T4=h4+k2 (t3-h3); H3, h4 and k2 are dimensionless factor, particularly, and T4=22+0.2 (t3-27).
Wherein, continuous one minute to d1 judge, d2 judges and the d3 Rule of judgment detects, if d1 judges, d2 judges and d3 judge in the judged result of at least one Rule of judgment for being; Judge that then air conditioner exists refrigerant excessive, be in the fluorine state, " refrigerant super-addition/low pressure measurement valve " closes; Begin to discharge refrigerant from the liquid tube valve, if detected system and be in the fluorine state in continuous 10 minutes, unit is out of service; Showed fluorine, and carried out air conditioner after the affirmation again and cross the fluorine detection.
Cross fluorine through the air conditioner among the utility model embodiment and detect, reached accurate and judged whether air conditioner exists the excessive effect of coolant quantity when refrigerating operaton.
Fig. 8 carries out air conditioner according to the detection method of the utility model embodiment to owe the process flow diagram that fluorine detects when air conditioner heat-production moves; As shown in Figure 8; When air conditioner heat-production moves, carrying out air conditioner owes fluorine and detects and to comprise: the intake air temperature that detects outdoor environment temperature and each compressor; Carry out corresponding judgment after detecting, comprise that a1 judges, a2 judges and a3 judges.
A1 judges; Comprise that a10 judges the judgement with a12, wherein, a10 be judged as judge first off-premises station output power whether less than first preset value; Whether a12 is judged as the difference of the intake air temperature of judging the outdoor environment temperature and first compressor more than or equal to the 9th preset temperature; Wherein, first off-premises station is any off-premises station in many off-premises stations, and first compressor is the compressor of first off-premises station; Be that the judged result of then confirming the a1 judgement is for being if the judged result that a10 judges and a12 judges is.Particularly, first preset value, 40%, the nine preset temperature that can be set to the first off-premises station output rating can be set to 9 ℃.
A2 judges, comprises that a20 judges and a22 judges, wherein; A20 be judged as judge first off-premises station output power whether more than or equal to first preset value and less than second preset value; Whether a22 is judged as the difference of the intake air temperature of judging the outdoor environment temperature and first compressor more than or equal to the tenth preset temperature, and wherein, the tenth preset temperature is greater than the 9th preset temperature; Be that the judged result of then confirming the a2 judgement is for being if the judged result that a20 judges and a22 judges is.Particularly, second preset value, 70%, the ten preset temperature that can be set to the first off-premises station output rating can be set to 11 ℃.
A3 judges, comprises that a30 judges and a32 judges, wherein; A30 be judged as judge first off-premises station output power whether more than or equal to second preset value; Whether a32 is judged as the difference of the intake air temperature of judging the outdoor environment temperature and first compressor more than or equal to the 11 preset temperature, and wherein, the 11 preset temperature is greater than the tenth preset temperature; Be that the judged result of then confirming the a3 judgement is for being if the judged result that a30 judges and a32 judges is.Particularly, the 11 preset temperature can be set to 14 ℃.
Wherein, if the judged result that a1 judges, a2 judges, a3 has any Rule of judgment in judging is for being to judge that then there is cold medium shortage in air conditioner; Unit is in the fluorine state of owing, and at this moment, needs control " refrigerant super-addition/low pressure measurement valve " to open; Refrigerant can append in system, and the system that all detected when continuous 60 minutes is in and owes the fluorine state, and then unit is out of service; Software prompt shows " whether the refrigerant super-addition tank valve opens " and " possibly there is leakage in system ", carries out this unit after the affirmation again and detects.
Through owing the fluorine detection method in the present embodiment, reached accurate and judged whether air conditioner exists the not enough effect of coolant quantity when heating operation.
Fig. 9 carries out the process flow diagram that the air-conditioner outdoor unit pipeline detects according to the detection method of the utility model embodiment when air conditioner heat-production moves; As shown in Figure 9; When air conditioner heat-production moves, carrying out the detection of air-conditioner outdoor unit pipeline comprises: detect the intake air temperature of each compressor and the delivery temperature of the delivery temperature and first condenser; Wherein, first condenser is the condenser of first off-premises station, and first off-premises station is any off-premises station in many off-premises stations; Carry out corresponding judgement after detecting, comprising: b1 judges and b2 judges.
B1 judges: whether the delivery temperature of judging first compressor is greater than the 12 preset temperature, and wherein, first compressor is the compressor of first off-premises station.Particularly, the 12 preset temperature can be set to 643 ℃.
B2 judges: whether the difference of delivery temperature of judging the average low pressure of system and first condenser is more than or equal to the 5th preset temperature, and wherein, the average low pressure of system is the mean value of the intake air temperature of each compressor, and the 5th preset temperature is less than the 12 preset temperature.Particularly, the 5th preset temperature can be set to the utility model embodiment in to carry out five preset temperature of air-conditioner outdoor unit pipeline when detecting when the air conditioner refrigerating operaton identical, that is, be all 5 ℃.
Wherein, If b1 judges, the judged result of at least one Rule of judgment of b2 in judging is for being, judge that then air conditioner exists the first off-premises station refrigerant pipe unusual, identical to the detection method of other off-premises station with detection method principle to first off-premises station; When detecting air conditioner when existing off-premises station refrigerant pipe unusual; Complete machine is out of service, and " refrigerant super-addition/low pressure measurement valve " closes, and carries out the off-premises station pipeline after the affirmation again and detects.
Detect through the off-premises station pipeline among the utility model embodiment: reached the effect whether accurate off-premises station refrigerant pipeline of judging air conditioner air conditioner when heating operation exists fault.
Figure 10 carries out the process flow diagram that the air conditioner room unit pipeline detects according to the detection method of the utility model embodiment when air conditioner heat-production moves; Shown in figure 10, when air conditioner heat-production moves, carry out the detection of air conditioner room unit pipeline and comprise: detect the delivery temperature of each compressor, the inlet pipe temperature of each indoor set and the aperture of each indoor set electric expansion valve; Carry out corresponding judgement after detecting, comprising: c1 judges and c2 judges.
C1 judges: whether the difference that in first Preset Time, connects the inlet pipe temperature of reading repeatedly to judge the average high pressure of system and first indoor set is more than or equal to the 13 preset temperature; Wherein, First indoor set is any indoor set in many indoor sets, and the average high pressure of system is the mean value of the delivery temperature of each compressor.Whether the difference of inlet pipe temperature of particularly, judging the average high pressure of system and first indoor set in continuous 3 minutes is more than or equal to 15 ℃.
C2 judges: whether the aperture of judging the first indoor set electric expansion valve is more than or equal to the second preset aperture.Particularly, the second preset aperture can be set to 400PLS.
Wherein, If the judged result of c1 judgement and two Rule of judgment of c2 judgement is be; Judge that then air conditioner exists the first indoor-unit cooling-medium pipe unusual, identical to the detection method of other indoor set with detection method principle to first indoor set, when detecting air conditioner when existing the indoor-unit cooling-medium pipe unusual; Then complete machine is out of service; " refrigerant super-addition/low pressure measurement valve " closes, and the pick-up unit circulation shows address and the malfunction that has the unusual indoor set of pipeline, carries out the detection of indoor set after the affirmation again.
Detect through the indoor set pipeline among the utility model embodiment, reached accurate and judged whether air conditioner indoor-unit cooling-medium pipeline of air conditioner when heating operation exists the effect of fault.
Figure 11 carries out air conditioner according to the detection method of the utility model embodiment to cross the process flow diagram that fluorine detects when air conditioner heat-production moves; Shown in figure 11, when air conditioner heat-production moves, carry out air conditioner and cross fluorine and detect and to comprise: detect the intake air temperature of each compressor and the aperture of delivery temperature and each indoor set electric expansion valve; Detect and finish to carry out corresponding judgment afterwards, comprising: d1 judges, d2 judges and d3 judges.
D1 judges: whether the difference of judging the actual degree of superheat and the target degree of superheat is less than or equal to first default value; Wherein, The actual degree of superheat is delivery temperature poor of intake air temperature and first compressor of first compressor; First compressor is any compressor that off-premises station connected in many off-premises stations, and the target degree of superheat is second default value; Particularly, first default value can be set to 0, the second default value and can specifically be provided with as required.
D2 judges: whether the aperture mean value of judging the indoor set electric expansion valve is less than or equal to the 4th preset aperture.Particularly, the 4th preset aperture can be set to 600PLS.
D3 judges: judge whether the actual degree of superheat is less than or equal to the 14 preset temperature.Particularly, the 14 preset temperature can be set to 2 ℃.
Wherein, if d1 judges, d2 judges and d3 judges that it is to judge that then air conditioner exists refrigerant excessive that the judged result of three Rule of judgment is; Be in the fluorine state, " refrigerant super-addition/low pressure measurement valve " closes, and begins to discharge refrigerant from the liquid tube valve; If detected system and be in the fluorine state in continuous 10 minutes; Unit is out of service, shows fluorine, carries out air conditioner after the affirmation again and crosses the fluorine detection.
Cross fluorine through the air conditioner among the utility model embodiment and detect, reached accurate and judged whether air conditioner exists the excessive effect of coolant quantity when heating operation.
Detection method when detection method when above-mentioned among the utility model embodiment moves about air conditioner heat-production and refrigerating operaton is combined, and has constituted the whole detection method that air-conditioner coolant is detected, and its testing process is shown in figure 12.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (4)
1. the pick-up unit of an air-conditioner coolant is characterized in that, comprising:
First detecting unit is used to detect air conditioner and whether has cold medium shortage;
Whether second detecting unit is used to detect said air conditioner and exists off-premises station refrigerant pipe unusual;
Whether the 3rd detecting unit is used to detect said air conditioner and exists the indoor-unit cooling-medium pipe unusual;
Whether the 4th detecting unit is used to detect said air conditioner and exists refrigerant excessive; And
First judging unit; Be connected respectively with said first detecting unit, said second detecting unit, said the 3rd detecting unit and said the 4th detecting unit, be used for when the testing result of said first detecting unit, said second detecting unit, said the 3rd detecting unit and said the 4th detecting unit is not, judging that the refrigerant state of said air conditioner is suitable.
2. pick-up unit according to claim 1 is characterized in that, also comprises:
The 5th detecting unit is used to detect outdoor environment temperature;
Second judging unit is connected with said the 5th detecting unit, is used to judge that whether said outdoor environment temperature is more than or equal to the 15 preset temperature;
First confirms to be connected with said second judging unit unit, is used for when judging said outdoor environment temperature more than or equal to said the 15 preset temperature, confirming that said air conditioner is in the refrigerating operaton state; And second confirm to be connected with said second judging unit unit, is used for when judging said outdoor environment temperature less than said the 15 preset temperature, confirming that said air conditioner is in the heating operation state.
3. pick-up unit according to claim 1; It is characterized in that; Said pick-up unit also comprises display unit; Said display unit is connected respectively with said first detecting unit, said second detecting unit, said the 3rd detecting unit and said the 4th detecting unit, is used to show that each detecting unit carries out the result that said air conditioner detects gained.
4. the detection system of an air-conditioner coolant is characterized in that, comprising:
Air conditioner; And
Each described pick-up unit in the claim 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200669587U CN202442730U (en) | 2012-02-27 | 2012-02-27 | Detection device and detection system for air conditioner refrigerant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200669587U CN202442730U (en) | 2012-02-27 | 2012-02-27 | Detection device and detection system for air conditioner refrigerant |
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| CN202442730U true CN202442730U (en) | 2012-09-19 |
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| CN2012200669587U Expired - Fee Related CN202442730U (en) | 2012-02-27 | 2012-02-27 | Detection device and detection system for air conditioner refrigerant |
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| CN (1) | CN202442730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665236A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigerant filling control method, device, equipment and system and air conditioning system |
| CN114370689A (en) * | 2022-01-27 | 2022-04-19 | 宁波奥克斯电气股份有限公司 | Refrigerant charge amount determination method, control method, air conditioner, and storage medium |
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2012
- 2012-02-27 CN CN2012200669587U patent/CN202442730U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665236A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Refrigerant filling control method, device, equipment and system and air conditioning system |
| CN112665236B (en) * | 2020-12-16 | 2023-03-14 | 珠海格力电器股份有限公司 | Refrigerant filling control method, device, equipment and system and air conditioning system |
| CN114370689A (en) * | 2022-01-27 | 2022-04-19 | 宁波奥克斯电气股份有限公司 | Refrigerant charge amount determination method, control method, air conditioner, and storage medium |
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