CN103293010B - Method and device and system for detecting air conditioner coolants - Google Patents
Method and device and system for detecting air conditioner coolants Download PDFInfo
- Publication number
- CN103293010B CN103293010B CN201210046402.6A CN201210046402A CN103293010B CN 103293010 B CN103293010 B CN 103293010B CN 201210046402 A CN201210046402 A CN 201210046402A CN 103293010 B CN103293010 B CN 103293010B
- Authority
- CN
- China
- Prior art keywords
- temperature
- judges
- air conditioner
- compressor
- premises station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a method and device and system for detecting air conditioner coolants. The detection method comprises the steps of detection A, detecting if air conditioner coolants are sufficient; detection B, detecting if an outdoor unit coolant pipe of the air conditioner is abnormal; detection C, detecting if a coolant pipe of the air conditioner is abnormal; detection D, detecting if the coolants of the air conditioner are excessive. If the detection results of the diction A, the detection B, the detection C and the detection D are all no, the state of the coolants of the air conditioner is judged to be proper. By means of the method and device and system for detecting the air conditioner coolants, the problems that in the prior art, the detection mode for the state of the coolants of the air conditioner is tedious, and efficiency is low are solved, so that the purposes of simplifying the detection mode of the coolants of the air conditioner and improving the detection effect are achieved.
Description
Technical field
The present invention relates to air conditioner field, in particular to a kind of detection method, Apparatus and system of air-conditioner coolant.
Background technology
At present, in the product development of air conditioner, for ensureing the normal operation of air conditioner, in air conditioner, generally all developing the function of refrigerant automatic filling, in order to ensure the q&r of refrigerant automatic filling, needing comprehensively to detect automatic filling.And current test job completes primarily of artificial test in every particular, waste time and energy, work efficiency is low, and if automatic filling breaks down, by when manually carrying out operation, trouble spot is easy-to-search not, debug difficulties.
Loaded down with trivial details for the detection mode of air-conditioner coolant state in correlation technique, the problem of inefficiency, not yet proposes effective solution at present.
Summary of the invention
Fundamental purpose of the present invention is the detection method, the Apparatus and system that provide a kind of air-conditioner coolant, loaded down with trivial details with the detection mode solving air-conditioner coolant state in prior art, the problem of inefficiency.
To achieve these goals, according to an aspect of the present invention, provide a kind of detection method of air-conditioner coolant, comprising: A detects: detect air conditioner and whether there is cold medium shortage; B detects: detect air conditioner and whether there is off-premises station refrigerant pipe extremely; C detects: detect air conditioner and whether there is indoor-unit cooling-medium pipe extremely; And D detects: it is excessive whether detection air conditioner exists refrigerant, wherein, if the testing result that A detects, B detects, C detects and D detects is no, then judge that the refrigerant state of air conditioner is suitable.
Further, air conditioner comprises multiple stage off-premises station, wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, every platform indoor set is all connected with electric expansion valve, and when air conditioner refrigerating operaton, A detects and comprises: the intake air temperature and the delivery temperature that detect the inlet pipe temperature of each indoor set, the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, indoor environment temperature residing for each indoor set and each compressor; A1 judges: judge whether degree of supercooling is less than the first preset temperature, wherein, degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that the first compressor connects for any off-premises station in multiple stage off-premises station; A2 judges: judge whether the degree of superheat is more than or equal to the second preset temperature, wherein, the degree of superheat is the difference of the intake air temperature of the first compressor and the delivery temperature of the first compressor, second preset temperature is determined by the difference of the inlet pipe temperature averages of indoor set and the intake air temperature of the first compressor, defining the second preset temperature is T2, the inlet pipe temperature averages of indoor set is t1, 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; A3 judges: judge whether the aperture mean value of electronic expansion valve of indoor unit is more than or equal to first and presets aperture; A4 judges: judge whether the delivery temperature of the first compressor and the difference of outdoor environment temperature are less than or equal to the 3rd preset temperature, wherein, the indoor environment temperature mean value of 3rd preset temperature residing for indoor set is determined, defining the 3rd preset temperature is T3, indoor environment temperature mean value residing for indoor set is t3, then T3 can be expressed as: T3=h2+k2 (t3-h3), and h2, h3 and k2 are dimensionless factor; And a5 judges: judge whether the intake air temperature of the first compressor is less than or equal to the 4th preset temperature, wherein, if a1 judges, a2 judges, a3 judges, a4 judges and a5 judge in the judged result of at least two Rule of judgment be yes, then judge that air conditioner exists cold medium shortage, if a1 judges, a2 judges, a3 judges, a4 judges and a5 judge in only have the judged result of a Rule of judgment to be or a1 judges, a2 judges, a3 judges, a4 judges and a5 judges judged result is no, then judge that air-conditioner coolant is sufficient.
Further, air conditioner comprises multiple stage off-premises station, every platform off-premises station is all connected with compressor, when air conditioner refrigerating operaton, B detects and comprises: detect the middle pipe temperature of the first off-premises station, outdoor environment temperature, the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser and intake air temperature, wherein, first off-premises station is any off-premises station in multiple stage off-premises station, and the first condenser is the condenser of the first off-premises station; B1 judges: in the first Preset Time, continuous several times judges whether the difference of pipe temperature and outdoor environment temperature in the first off-premises station is less than or equal to the 5th preset temperature; B2 judges: judge whether the difference of the intake air temperature of the average high pressure of system and the first condenser is more than or equal to the 5th preset temperature, wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor; And b3 judges: judge whether the difference of the delivery temperature of system average low pressures and the first condenser is more than or equal to the 5th preset temperature, wherein, system average low pressures 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 be yes, then judge that air conditioner exists the first off-premises station refrigerant pipe abnormal.
Further, it is characterized in that, air conditioner comprises multiple stage off-premises station, wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, every platform indoor set is all connected with electric expansion valve, and when air conditioner refrigerating operaton, C detects and comprises: the aperture going out pipe temperature and inlet pipe temperature and each electronic expansion valve of indoor unit detecting each indoor set; C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference pipe temperature and inlet pipe temperature of the first indoor set is more than or equal to the 6th preset temperature, and wherein, the first indoor set is any indoor set in multiple stage indoor set; C2 judges: judge whether the aperture of the first electronic expansion valve of indoor unit is more than or equal to second and presets aperture, wherein, if c1 judgement and c2 judge that the judged result of two Rule of judgment is be, then judge that air conditioner exists the first indoor-unit cooling-medium pipe abnormal.
Further, air conditioner comprises multiple stage off-premises station, wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, every platform indoor set is all connected with electric expansion valve, and when air conditioner refrigerating operaton, D detects and comprises: the intake air temperature and the delivery temperature that detect indoor environment temperature residing for the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, each indoor set and each compressor, d1 judges: judge whether degree of supercooling is more than or equal to the 7th preset temperature, wherein, degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that the first compressor connects for any off-premises station in multiple stage off-premises station, d2 judges: judge whether the aperture mean value of the electric expansion valve of multiple stage indoor set is less than or equal to the 3rd and presets aperture, and d3 judges: judge whether the difference of the average high pressure of system and outdoor environment temperature is more than or equal to the 8th preset temperature, wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor, the indoor environment temperature mean value of 8th preset temperature residing for indoor set is determined, defining the 8th preset temperature is T4, indoor environment temperature mean value residing for indoor set is t3, then T4 can be expressed as: T4=h4+k2 (t3-h3), h3, h4 and k2 is dimensionless factor, wherein, if d1 judges, d2 judges and d3 judge in the judged result of at least one Rule of judgment be yes, then judge that air conditioner exists refrigerant excessive.
Further, air conditioner comprises multiple stage off-premises station, and wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, and when air conditioner heat-production runs, A detects and comprises: the intake air temperature detecting outdoor environment temperature and each compressor, a1 judges, comprise a10 to judge and a12 judgement, wherein, a10 is judged as whether the output power judging the first off-premises station is less than the first preset value, a12 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the 9th preset temperature, wherein, first off-premises station is any off-premises station in multiple stage off-premises station, first compressor is the compressor of the first off-premises station, if it is then determine that the judged result that a1 judges is yes that the judged result that a10 judges and a12 judges is, a2 judges, comprise a20 to judge and a22 judgement, wherein, a20 is judged as judging whether the output power of the first off-premises station is more than or equal to the first preset value and is less than the second preset value, a22 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the tenth preset temperature, and wherein, the tenth preset temperature is greater than the 9th preset temperature, if it is then determine that the judged result that a2 judges is yes that the judged result that a20 judges and a22 judges is, a3 judges, comprise a30 to judge and a32 judgement, wherein, a30 is judged as whether the output power judging the first off-premises station is more than or equal to the second preset value, a32 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the 11 preset temperature, wherein, 11 preset temperature is greater than the tenth preset temperature, if the judged result that a30 judges and a32 judges is be, then determine that the judged result that a3 judges is yes, wherein, if a1 judges, a2 judges, the judged result of any one Rule of judgment is had to be yes during a3 judges, then judge that air conditioner exists cold medium shortage.
Further, air conditioner comprises multiple stage off-premises station, every platform off-premises station is all connected with compressor, when air conditioner heat-production runs, B detects and comprises: detect the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser, wherein, first condenser is the condenser of the first off-premises station, and the first off-premises station is any off-premises station in multiple stage off-premises station; B1 judges: judge whether the delivery temperature of the first compressor is greater than the 12 preset temperature, wherein, the first compressor is the compressor of the first off-premises station; B2 judges: judge whether the difference of the delivery temperature of system average low pressures and the first condenser is more than or equal to the 5th preset temperature, wherein, system average low pressures is the mean value of the intake air temperature of each compressor, and the 5th preset temperature is less than the 12 preset temperature; Wherein, if b1 judges, b2 judge in the judged result of at least one Rule of judgment be yes, then judge that air conditioner exists the first off-premises station refrigerant pipe abnormal.
Further, air conditioner comprises multiple stage off-premises station, wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, every platform indoor set is all connected with electric expansion valve, and when air conditioner heat-production runs, C detects and comprises: detect the delivery temperature of each compressor, the inlet pipe temperature of each indoor set and the aperture of each electronic expansion valve of indoor unit; C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference of the inlet pipe temperature of the average high pressure of system and the first indoor set is more than or equal to the 13 preset temperature, wherein, first indoor set is any indoor set in multiple stage indoor set, and the average high pressure of system is the mean value of the delivery temperature of each compressor; C2 judges: judge whether the aperture of the first electronic expansion valve of indoor unit is more than or equal to second and presets aperture, wherein, if c1 judgement and c2 judge that the judged result of two Rule of judgment is be, then judge that air conditioner exists the first indoor-unit cooling-medium pipe abnormal.
Further, air conditioner comprises multiple stage off-premises station, wherein, every platform off-premises station is all connected with compressor and multiple stage indoor set, every platform indoor set is all connected with electric expansion valve, and when air conditioner heat-production runs, D detects and comprises: detect the intake air temperature of each compressor and the aperture of delivery temperature and each electronic expansion valve of indoor unit; D1 judges: judge whether the difference of the actual degree of superheat and target superheat degree is less than or equal to the first default value, wherein, the actual degree of superheat is the difference of the intake air temperature of the first compressor and the delivery temperature of the first compressor, the compressor that first compressor connects for any off-premises station in multiple stage off-premises station, target superheat degree is the second default value; D2 judges: judge whether the aperture mean value of electronic expansion valve of indoor unit is less than or equal to the 4th and presets aperture; And d3 judges: judge whether the actual degree of superheat is less than or equal to the 14 preset temperature, wherein, if it is then judge that air conditioner exists refrigerant excessive that d1 judgement, d2 judgement and d3 judge that the judged result of three Rule of judgment is.
Further, detection method also comprises: detect outdoor environment temperature; Judge whether outdoor environment temperature is more than or equal to the 15 preset temperature; When judging that outdoor environment temperature is more than or equal to 15 preset temperature, determine that air conditioner is in refrigeration operational state; And when judging that outdoor environment temperature is less than 15 preset temperature, determine that air conditioner is in heating operation state.
To achieve these goals, according to a further aspect in the invention, a kind of pick-up unit of air-conditioner coolant is provided, for performing the detection method of the air-conditioner coolant that foregoing of the present invention provides.
To achieve these goals, according to a further aspect in the invention, providing a kind of pick-up unit of air-conditioner coolant, comprising: the first detecting unit, whether there is cold medium shortage for detecting air conditioner; Whether the second detecting unit, exist off-premises station refrigerant pipe extremely for detecting air conditioner; Whether the 3rd detecting unit, exist indoor-unit cooling-medium pipe extremely for detecting air conditioner; 4th detecting unit, for detecting air conditioner, whether to there is refrigerant excessive; And first judging unit, be connected respectively with the 4th detecting unit with the first detecting unit, the second detecting unit, the 3rd detecting unit, for judging that when the testing result of the first detecting unit, the second detecting unit, the 3rd detecting unit and the 4th detecting unit is no the refrigerant state of air conditioner is suitable.
Further, pick-up unit also comprises: the 5th detecting unit, for detecting outdoor environment temperature; Second judging unit, is connected with the 5th detecting unit, for judging whether outdoor environment temperature is more than or equal to the 15 preset temperature; First determining unit, is connected with the second judging unit, for when judging that outdoor environment temperature is more than or equal to 15 preset temperature, determines that air conditioner is in refrigeration operational state; And second determining unit, being connected with the second judging unit, for when judging that outdoor environment temperature is less than 15 preset temperature, determining that air conditioner is in heating operation state.
Further, pick-up unit also comprises display unit, is connected respectively with the 4th detecting unit with the first detecting unit, the second detecting unit, the 3rd detecting unit, carries out for showing each detecting unit the result that air conditioner detects gained.
To achieve these goals, according to a further aspect in the invention, provide a kind of detection system of air-conditioner coolant, comprising: air conditioner; And any one pick-up unit that foregoing of the present invention provides.
By the present invention, A is adopted to detect: to detect air conditioner and whether there is cold medium shortage; B detects: detect air conditioner and whether there is off-premises station refrigerant pipe extremely; C detects: detect air conditioner and whether there is indoor-unit cooling-medium pipe extremely; And D detects: it is excessive whether detection air conditioner exists refrigerant, wherein, if the testing result that A detects, B detects, C detects and D detects is no, then judge that the refrigerant state of air conditioner is suitable.By carrying out classification and Detection to whether suitable air-conditioner coolant state is, avoid 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 rapidly and accurately according to the result of all kinds of detection, the detection mode solving air-conditioner coolant state in prior art is loaded down with trivial details, the problem of inefficiency, and then reach the detection mode simplifying air-conditioner coolant, improve the effect of detection efficiency.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the pick-up unit according to the embodiment of the present invention;
Fig. 2 is the process flow diagram of the detection method according to the embodiment of the present invention;
Fig. 3 is the process flow diagram of the detection method determination conditioners running conditions according to the embodiment of the present invention;
Fig. 4 carries out air conditioner when air conditioner refrigerating operaton according to the detection method of the embodiment of the present invention to owe the process flow diagram that fluorine detects;
Fig. 5 is the process flow diagram carrying out the detection of air-conditioner outdoor unit pipeline according to the detection method of the embodiment of the present invention when air conditioner refrigerating operaton;
Fig. 6 is the process flow diagram carrying out the detection of air conditioner room unit pipeline according to the detection method of the embodiment of the present invention when air conditioner refrigerating operaton;
Fig. 7 carries out air conditioner when air conditioner refrigerating operaton according to the detection method of the embodiment of the present invention to cross the process flow diagram that fluorine detects;
Fig. 8 carries out according to the detection method of the embodiment of the present invention process flow diagram that fluorine detection owed by air conditioner when air conditioner heat-production runs;
Fig. 9 is the process flow diagram carrying out the detection of air-conditioner outdoor unit pipeline according to the detection method of the embodiment of the present invention when air conditioner heat-production runs;
Figure 10 is the process flow diagram carrying out the detection of air conditioner room unit pipeline according to the detection method of the embodiment of the present invention when air conditioner heat-production runs;
Figure 11 carries out according to the detection method of the embodiment of the present invention process flow diagram that fluorine detection crossed by air conditioner when air conditioner heat-production runs; And
Figure 12 is the process flow diagram of detection method according to the preferred embodiment of the invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiments provide a kind of pick-up unit of air-conditioner coolant, Fig. 1 is the schematic diagram of the pick-up unit according to the embodiment of the present invention, as shown in Figure 1, the pick-up unit of this embodiment comprises: the first detecting unit 10, second detecting unit 20, the 3rd detecting unit 30, the 4th detecting unit 40 and the first judging unit 50.
Whether the first detecting unit 10, exist cold medium shortage for detecting air conditioner.Whether the second detecting unit 20, exist off-premises station refrigerant pipe extremely for detecting air conditioner.Whether the 3rd detecting unit 30, exist indoor-unit cooling-medium pipe extremely for detecting air conditioner.4th detecting unit 40, for detecting air conditioner, whether to there is refrigerant excessive.Particularly, when after pick-up unit and air conditioner start, pick-up unit host computer issues debug command, and pick-up unit controller runs automatically, carries out classification and Detection to " automatic filling operation " unit of unit.
When the testing result of the first detecting unit 10, second detecting unit 20, the 3rd detecting unit 30 and the 4th detecting unit 40 is no, the first judging unit 50 judges that the refrigerant state of air conditioner is suitable.
By carrying out classification and Detection to whether suitable air-conditioner coolant state is, avoid 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 rapidly and accurately according to the result of all kinds of detection, the detection mode solving air-conditioner coolant state in prior art is loaded down with trivial details, the problem of inefficiency, and then reach the detection mode simplifying air-conditioner coolant, improve the effect of detection efficiency.
Preferably, the pick-up unit of the embodiment of the present invention also comprises the 5th detecting unit, the second judging unit, the first determining unit and the second determining unit.Before pick-up unit carries out whether suitable the refrigerant state of air conditioner is and detects, first can detect outdoor environment temperature by the 5th detecting unit, then judging whether the outdoor environment temperature detected is more than or equal to 20 DEG C by the second judging unit (can be as required, be set as other temperature value), if outdoor environment temperature is more than or equal to 20 DEG C, then the first determining unit can determine that air conditioner is in refrigeration operational state, if outdoor environment temperature is less than 20 DEG C, then the second determining unit can determine that air conditioner is in heating operation state.Wherein, the detection operation corresponding with running status can be performed when air conditioner is in different running statuses for each detecting unit that whether suitable classification and Detection air-conditioner coolant state is.
By determining the running status of air conditioner, to be used in the detection method that the whether suitable each detecting unit of classification and Detection air-conditioner coolant state determines the air-conditioner coolant performed corresponding to different operational mode, reach the effect improving air-conditioner coolant accuracy of detection.
Further, the pick-up unit of the embodiment of the present invention can also comprise display unit, and display unit is all connected with each detecting unit, to show the testing result obtained when each detecting unit detects whether suitable air-conditioner coolant is.Be convenient to maintenance or installation personnel recognize detection case intuitively in time.
The embodiment of the present invention additionally provides a kind of detection system of air-conditioner coolant, comprises the pick-up unit of any one air-conditioner coolant that air conditioner and embodiment of the present invention foregoing provide.
The embodiment of the present invention additionally provides a kind of detection method of air-conditioner coolant, any one pick-up unit that this detection method can be provided by the above embodiment of the present invention performs, and, this detection method can be applied to the air conditioner comprising following structure: multiple stage off-premises station, every platform off-premises station is all connected with compressor and multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, Fig. 2 is the process flow diagram of the detection method according to the embodiment of the present invention, as shown in Figure 2, the detection method of this embodiment comprises: A detects: detect air conditioner and whether there is cold medium shortage, B detects: detect air conditioner and whether there is off-premises station refrigerant pipe extremely, C detects: detect air conditioner and whether there is indoor-unit cooling-medium pipe extremely, and D detects: it is excessive whether detection air conditioner exists refrigerant, wherein, if the testing result that A detects, B detects, C detects and D detects is no, then judge that the refrigerant state of air conditioner is suitable, detection of end, system starts timing, stops automatic filling refrigerant after 6 minutes, and it is out of service that automatic filling refrigerant terminates unit after 5 minutes.If other situation, then judge that the refrigerant of air conditioner is improper, return beginning detected state, air-conditioner coolant is detected again.
Detected by the A of the embodiment of the present invention, B detects, C detects and D detects the detection carried out respectively for different object to judge air-conditioner coolant state, avoid the repetition of testing process, reach the effect determining that whether suitable refrigerant state is efficiently and accurately.
Fig. 3 is the process flow diagram of the detection method determination conditioners running conditions according to the embodiment of the present invention, as shown in Figure 3, and the running status by following steps determination air conditioner:
Detect outdoor environment temperature, judge whether outdoor environment temperature is more than or equal to 20 DEG C (can be set as other temperature value of satisfying the demand), if outdoor environment temperature is more than or equal to 20 DEG C, then determine that air conditioner is in refrigeration operational state, if outdoor environment temperature is little 20 DEG C, then determine that air conditioner is in heating operation state.
By determining the running status of air conditioner, to be used in the detection method that the whether suitable each detecting unit of classification and Detection air-conditioner coolant state determines the air-conditioner coolant performed corresponding to different operational mode, reach the effect improving air-conditioner coolant accuracy of detection.
Fig. 4 carries out air conditioner when air conditioner refrigerating operaton according to the detection method of the embodiment of the present invention to owe the process flow diagram that fluorine detects, as shown in Figure 4, carry out air conditioner to owe fluorine and detect when air conditioner refrigerating operaton and comprise: detect the inlet pipe temperature of each indoor set and go out intake air temperature and the delivery temperature of pipe temperature, the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, indoor environment temperature residing for each indoor set and each compressor; Carry out corresponding judgement after detection, comprising: a1 judges, a2 judges, a3 judges, a4 judges and a5 judges.
A1 judges: judge whether degree of supercooling is less than the first preset temperature, wherein, degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that the first compressor connects for any off-premises station in multiple stage off-premises station.Particularly, the first preset temperature can be set to 3 DEG C.
A2 judges: judge whether the degree of superheat is more than or equal to the second preset temperature, wherein, the degree of superheat is the difference of the intake air temperature of the first compressor and the delivery temperature of the first compressor, second preset temperature is determined by the difference of the inlet pipe temperature averages of indoor set and the intake air temperature of compressor, defining the second preset temperature is T2, and the inlet pipe temperature averages 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: judge whether the aperture mean value of electronic expansion valve of indoor unit is more than or equal to first and presets aperture.Or judge whether the aperture mean value of electronic expansion valve of indoor unit is greater than 1/3rd of the maximum opening of electronic expansion valve of indoor unit.Particularly, first presets aperture can be set to 480 (120) PLS, and the maximum opening of electronic expansion valve of indoor unit is set to 1200 (300) PLS.
A4 judges: judge whether the delivery temperature of the first compressor and the difference of outdoor environment temperature are less than or equal to the 3rd preset temperature, wherein, the indoor environment temperature mean value of 3rd preset temperature residing for indoor set is determined, defining the 3rd preset temperature is T3, indoor environment temperature mean value residing for indoor set is t3, then T3 can be expressed as: T3=h2+k2 (t3-h3), and h2, h3 and k2 are dimensionless factor.Particularly, T3=17+0.2 (t3-27).
A5 judges: judge whether the intake air temperature of the first compressor is less than or equal to the 4th preset temperature.Particularly, the 4th preset temperature can be set to-5 DEG C.
Wherein, a1 was judged in continuous one minute, a2 judges, a3 judges, a4 judges and 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 be yes, then judge that air conditioner exists cold medium shortage, unit is in deficient fluorine state, now, need to control " refrigerant super-addition/low pressure measurement valve " to open, system can add refrigerant, all detected that system was in deficient fluorine state when continuous 60 minutes, then unit is out of service, software prompt display " whether refrigerant super-addition tank valve opens " and " system may exist leakage ", this unit inspection is re-started after confirmation, if a1 judges, a2 judges, a3 judges, a4 judges and a5 judge in only have the judged result of a Rule of judgment to be or do not have the judged result of Rule of judgment to be yes, then judge that air-conditioner coolant is sufficient.
By the deficient fluorine detection method in the present embodiment, reach and accurately judge whether air conditioner exists the effect of coolant quantity deficiency when refrigerating operaton.
Fig. 5 is the process flow diagram carrying out the detection of air-conditioner outdoor unit pipeline according to the detection method of the embodiment of the present invention when air conditioner refrigerating operaton, carry out the detection of air-conditioner outdoor unit pipeline to comprise when air conditioner refrigerating operaton: detect the middle pipe temperature of the first off-premises station, outdoor environment temperature, the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser and intake air temperature, wherein, first off-premises station is any off-premises station in multiple stage off-premises station, and the first condenser is the condenser of the first off-premises station; Carry out corresponding judgement after detection, comprising: b1 judges, b2 judges and b3 judges.
B1 judges: in the first Preset Time, continuous several times judges whether the difference of pipe temperature and outdoor environment temperature in the first off-premises station is less than or equal to the 5th preset temperature.Particularly, within continuous 3 minutes, 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 DEG C, that is, the 5th preset temperature can be 5 DEG C.
B2 judges: judge whether the difference of the intake air temperature of the average high pressure of system and the first condenser is more than or equal to the 5th preset temperature, wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor.
B3 judges: judge whether the difference of the delivery temperature of system average low pressures and the first condenser is more than or equal to the 5th preset temperature, wherein, system average low pressures 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 be yes, then judge that air conditioner exists the first off-premises station refrigerant pipe abnormal, detection method to other off-premises station is identical with the detection method principle to the first off-premises station, when detecting that air conditioner exists off-premises station refrigerant pipe exception, complete machine is out of service, and " refrigerant super-addition/low pressure measurement valve " closes, and re-starts off-premises station pipeline and detect after confirmation.
Detected by the off-premises station pipeline in the embodiment of the present invention: reach and accurately judge whether the off-premises station refrigerant pipeline of air conditioner air conditioner when refrigerating operaton exists the effect of fault.
Fig. 6 is the process flow diagram carrying out the detection of air conditioner room unit pipeline according to the detection method of the embodiment of the present invention when air conditioner refrigerating operaton, as shown in Figure 6, carry out the detection of air conditioner room unit pipeline to comprise when air conditioner refrigerating operaton: the aperture going out pipe temperature and inlet pipe temperature and each electronic expansion valve of indoor unit detecting each indoor set, carry out corresponding judgement after detection, comprising: c1 judges, c2 judges, c3 judges and c4 judges.
C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference pipe temperature and inlet pipe temperature of the first indoor set is more than or equal to the 6th preset temperature, and wherein, the first indoor set is any indoor set in multiple stage indoor set.Particularly, within continuous 3 minutes, judge whether the difference pipe temperature and inlet pipe temperature of the first indoor set is more than or equal to 10 DEG C.
C2 judges: judge whether the aperture of the first electronic expansion valve of indoor unit is more than or equal to second and presets aperture.Particularly, the second default aperture can be set to 400PLS.
Wherein, if c1 judgement and c2 judge that the judged result of two Rule of judgment is and are, then judge that the automatic filling that air conditioner refrigerating operaton is corresponding exists the first indoor-unit cooling-medium pipe extremely, detection method to other indoor set is identical with the detection method principle to the first indoor set, when detecting that air conditioner exists indoor-unit cooling-medium pipe exception, complete machine is out of service, " refrigerant super-addition/low pressure measurement valve " closes, there is address and the malfunction of the indoor set of pipeline exception in pick-up unit Circulating fibrocytes, re-starts the detection of indoor set after confirmation.
Detected by the indoor set pipeline in the embodiment of the present invention, reach and accurately judge 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 when air conditioner refrigerating operaton according to the detection method of the embodiment of the present invention to cross the process flow diagram that fluorine detects, as shown in Figure 7, carry out air conditioner to cross fluorine and detect when air conditioner refrigerating operaton and comprise: the intake air temperature and the delivery temperature that detect indoor environment temperature residing for the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, each indoor set and each compressor, judge accordingly after detection terminates, comprising: d1 judges, d2 judges and d3 judges.
D1 judges: judge whether degree of supercooling is more than or equal to the 7th preset temperature, wherein, degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that the first compressor connects for any off-premises station in multiple stage off-premises station.Particularly, the 7th preset temperature can be set to 8 DEG C.
D2 judges: judge whether the aperture mean value of electronic expansion valve of indoor unit is less than or equal to the 3rd and presets aperture.Or judge whether the aperture mean value of electronic expansion valve of indoor unit is less than 1/3rd of the maximum opening of electronic expansion valve of indoor unit.Particularly, the 3rd presets aperture can be set to 90PLS, and the maximum opening of electronic expansion valve of indoor unit is set to 480 (120) PLS.
D3 judges: judge whether the difference of the average high pressure of system and outdoor environment temperature is more than or equal to the 8th preset temperature, wherein, the average high pressure of system is the mean value of the delivery temperature of each compressor, wherein, the indoor environment temperature mean value of 8th preset temperature residing for indoor set is determined, defining the 8th preset temperature is T4, indoor environment temperature mean value residing for indoor set is t3, then T4 can be expressed as: T4=h4+k2 (t3-h3), h3, h4 and k2 are dimensionless factor, particularly, T4=22+0.2 (t3-27).
Wherein, d1 was judged in continuous one minute, d2 judges and d3 Rule of judgment detects, if d1 judges, d2 judges and d3 judge in the judged result of at least one Rule of judgment be yes, then judge that air conditioner exists refrigerant excessive, be in fluorine state, " refrigerant super-addition/low pressure measurement valve " closes, from liquid tube valve place, discharge refrigerant, if continuous 10 minutes detect that system was in fluorine state, unit is out of service, showed fluorine, and re-started air conditioner after confirmation and cross fluorine detection.
Cross fluorine by the air conditioner in the embodiment of the present invention to detect, reach and accurately judge whether air conditioner exists the excessive effect of coolant quantity when refrigerating operaton.
Fig. 8 carries out according to the detection method of the embodiment of the present invention process flow diagram that fluorine detection owed by air conditioner when air conditioner heat-production runs, as shown in Figure 8, carry out air conditioner to owe fluorine and detect when air conditioner heat-production runs and comprise: the intake air temperature detecting outdoor environment temperature and each compressor, judge accordingly after detection, comprise a1 judgement, a2 judges and a3 judges.
A1 judges, comprise a10 to judge and a12 judgement, wherein, a10 is judged as whether the output power judging the first off-premises station is less than the first preset value, a12 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the 9th preset temperature, wherein, first off-premises station is any off-premises station in multiple stage off-premises station, first compressor is the compressor of the first off-premises station, if it is then determine that the judged result that a1 judges is yes that the judged result that a10 judges and a12 judges is.Particularly, the 40%, nine preset temperature that the first preset value can be set to the first off-premises station output rating can be set to 9 DEG C.
A2 judges, comprise a20 to judge and a22 judgement, wherein, a20 is judged as judging whether the output power of the first off-premises station is more than or equal to the first preset value and is less than the second preset value, a22 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the tenth preset temperature, and wherein, the tenth preset temperature is greater than the 9th preset temperature, if it is then determine that the judged result that a2 judges is yes that the judged result that a20 judges and a22 judges is.Particularly, the 70%, ten preset temperature that the second preset value can be set to the first off-premises station output rating can be set to 11 DEG C.
A3 judges, comprise a30 to judge and a32 judgement, wherein, a30 is judged as whether the output power judging the first off-premises station is more than or equal to the second preset value, a32 is judged as whether the difference of the intake air temperature judging outdoor environment temperature and the first compressor is more than or equal to the 11 preset temperature, and wherein, the 11 preset temperature is greater than the tenth preset temperature, if it is then determine that the judged result that a3 judges is yes that the judged result that a30 judges and a32 judges is.Particularly, the 11 preset temperature can be set to 14 DEG C.
Wherein, if a1 judges, a2 judges, a3 has the judged result of any one Rule of judgment to be yes in judging, then judge that air conditioner exists cold medium shortage, unit is in deficient fluorine state, now, need to control " refrigerant super-addition/low pressure measurement valve " to open, system can add refrigerant, and all detected that system was in deficient fluorine state when continuous 60 minutes, then unit is out of service, software prompt display " whether refrigerant super-addition tank valve opens " and " system may exist leakage ", re-starts this unit inspection after confirmation.
By the deficient fluorine detection method in the present embodiment, reach and accurately judge whether air conditioner exists the effect of coolant quantity deficiency when heating operation.
Fig. 9 is the process flow diagram carrying out the detection of air-conditioner outdoor unit pipeline according to the detection method of the embodiment of the present invention when air conditioner heat-production runs, as shown in Figure 9, carry out the detection of air-conditioner outdoor unit pipeline to comprise when air conditioner heat-production runs: detect the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser, wherein, first condenser is the condenser of the first off-premises station, and the first off-premises station is any off-premises station in multiple stage off-premises station; Carry out corresponding judgement after detection, comprising: b1 judges and b2 judges.
B1 judges: judge whether the delivery temperature of the first compressor is greater than the 12 preset temperature, wherein, the first compressor is the compressor of the first off-premises station.Particularly, the 12 preset temperature can be set to 643 DEG C.
B2 judges: judge whether the difference of the delivery temperature of system average low pressures and the first condenser is more than or equal to the 5th preset temperature, wherein, system average low pressures 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 identical with the 5th preset temperature carried out when air-conditioner outdoor unit pipeline detects when air conditioner refrigerating operaton in the embodiment of the present invention, that is, be all 5 DEG C.
Wherein, if b1 judges, b2 judge in the judged result of at least one Rule of judgment be yes, then judge that air conditioner exists the first off-premises station refrigerant pipe abnormal, detection method to other off-premises station is identical with the detection method principle to the first off-premises station, when detecting that air conditioner exists off-premises station refrigerant pipe exception, complete machine is out of service, and " refrigerant super-addition/low pressure measurement valve " closes, and re-starts off-premises station pipeline and detect after confirmation.
Detected by the off-premises station pipeline in the embodiment of the present invention: reach and accurately judge whether the off-premises station refrigerant pipeline of air conditioner air conditioner when heating operation exists the effect of fault.
Figure 10 is the process flow diagram carrying out the detection of air conditioner room unit pipeline according to the detection method of the embodiment of the present invention when air conditioner heat-production runs, as shown in Figure 10, carry out the detection of air conditioner room unit pipeline to comprise when air conditioner heat-production runs: detect the delivery temperature of each compressor, the inlet pipe temperature of each indoor set and the aperture of each electronic expansion valve of indoor unit; Carry out corresponding judgement after detection, comprising: c1 judges and c2 judges.
C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference of the inlet pipe temperature of the average high pressure of system and the first indoor set is more than or equal to the 13 preset temperature, wherein, first indoor set is any indoor set in multiple stage indoor set, and the average high pressure of system is the mean value of the delivery temperature of each compressor.Particularly, within continuous 3 minutes, judge whether the difference of the inlet pipe temperature of the average high pressure of system and the first indoor set is more than or equal to 15 DEG C.
C2 judges: judge whether the aperture of the first electronic expansion valve of indoor unit is more than or equal to second and presets aperture.Particularly, the second default aperture can be set to 400PLS.
Wherein, if c1 judgement and c2 judge that the judged result of two Rule of judgment is and are, then judge that air conditioner exists the first indoor-unit cooling-medium pipe abnormal, detection method to other indoor set is identical with the detection method principle to the first indoor set, when detecting that air conditioner exists indoor-unit cooling-medium pipe exception, then complete machine is out of service, " refrigerant super-addition/low pressure measurement valve " closes, there is address and the malfunction of the indoor set of pipeline exception in pick-up unit Circulating fibrocytes, re-starts the detection of indoor set after confirmation.
Detected by the indoor set pipeline in the embodiment of the present invention, reach and accurately judge whether air conditioner indoor-unit cooling-medium pipeline of air conditioner when heating operation exists the effect of fault.
Figure 11 carries out according to the detection method of the embodiment of the present invention process flow diagram that fluorine detection crossed by air conditioner when air conditioner heat-production runs, as shown in figure 11, carry out when air conditioner heat-production runs air conditioner cross fluorine detect comprise: detect the intake air temperature of each compressor and the aperture of delivery temperature and each electronic expansion valve of indoor unit; Judge accordingly after detection terminates, comprising: d1 judges, d2 judges and d3 judges.
D1 judges: judge whether the difference of the actual degree of superheat and target superheat degree is less than or equal to the first default value, wherein, the actual degree of superheat is the difference of the intake air temperature of the first compressor and the delivery temperature of the first compressor, the compressor that first compressor connects for any off-premises station in multiple stage off-premises station, target superheat degree is the second default value; Particularly, the first default value can be set to 0, and the second default value can specifically be arranged as required.
D2 judges: judge whether the aperture mean value of electronic expansion valve of indoor unit is less than or equal to the 4th and presets aperture.Particularly, the 4th default 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 DEG C.
Wherein, if d1 judgement, d2 judgement and d3 judge that the judged result of three Rule of judgment is and are, then judge that air conditioner exists refrigerant excessive, be in fluorine state, " refrigerant super-addition/low pressure measurement valve " closes, from liquid tube valve place, discharge refrigerant, if continuous 10 minutes detect that system was in fluorine state, unit is out of service, shows fluorine, re-starts air conditioner and cross fluorine detection after confirmation.
Cross fluorine by the air conditioner in the embodiment of the present invention to detect, reach and accurately judge whether air conditioner exists the excessive effect of coolant quantity when heating operation.
Detection method when detection method when above-mentioned in the embodiment of the present invention runs about air conditioner heat-production and refrigerating operaton is combined, and constitute the whole detection method detected air-conditioner coolant, its testing process as shown in figure 12.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each unit or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit unit respectively, or the multiple unit in them or step are made into single integrated circuit unit to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a detection method for air-conditioner coolant, is characterized in that, comprising:
A detects: detect air conditioner and whether there is cold medium shortage;
B detects: detect described air conditioner and whether there is off-premises station refrigerant pipe extremely, described air conditioner comprises multiple stage off-premises station, every platform off-premises station is all connected with compressor, when described air conditioner refrigerating operaton, described B detects and comprises: detect the middle pipe temperature of the first off-premises station, outdoor environment temperature, the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser and intake air temperature, wherein, described first off-premises station is any off-premises station in described multiple stage off-premises station, and described first condenser is the condenser of described first off-premises station; B1 judges: in the first Preset Time, continuous several times judges whether the difference of pipe temperature and described outdoor environment temperature in described first off-premises station is less than or equal to the 5th preset temperature; B2 judges: judge whether the difference of the intake air temperature of the average high pressure of system and described first condenser is more than or equal to described 5th preset temperature, wherein, the average high pressure of described system is the mean value of the delivery temperature of each compressor; And b3 judges: judge whether the difference of the delivery temperature of system average low pressures and described first condenser is more than or equal to described 5th preset temperature, wherein, described system average low pressures is the mean value of the intake air temperature of each compressor, wherein, if described b1 judges, described b2 judges and described b3 judge in the judged result of at least one Rule of judgment be yes, then judge that described air conditioner exists described first off-premises station refrigerant pipe abnormal;
C detects: detect described air conditioner and whether there is indoor-unit cooling-medium pipe extremely; And
D detects: detecting described air conditioner, whether to there is refrigerant excessive,
Wherein, if the testing result that described A detects, described B detects, described C detects and described D detects is no, then judge that the refrigerant state of described air conditioner is suitable.
2. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, and when described air conditioner refrigerating operaton, described A detects and comprises:
Detect intake air temperature and the delivery temperature of the inlet pipe temperature of each indoor set, the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, indoor environment temperature residing for each indoor set and each compressor;
A1 judges: judge whether degree of supercooling is less than the first preset temperature, wherein, described degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that described first compressor connects for any off-premises station in described multiple stage off-premises station;
A2 judges: judge whether the degree of superheat is more than or equal to the second preset temperature, wherein, the described degree of superheat is the difference of the intake air temperature of described first compressor and the delivery temperature of described first compressor, and described second preset temperature is determined by the difference of the inlet pipe temperature averages of described indoor set and the intake air temperature of described first compressor;
A3 judges: judge whether the aperture mean value of described electronic expansion valve of indoor unit is more than or equal to first and presets aperture;
A4 judges: judge whether the delivery temperature of described first compressor and the difference of described outdoor environment temperature are less than or equal to the 3rd preset temperature, wherein, the indoor environment temperature mean value of described 3rd preset temperature residing for described indoor set is determined; And
A5 judges: judge whether the intake air temperature of described first compressor is less than or equal to the 4th preset temperature,
Wherein, if described a1 judges, described a2 judges, described a3 judges, described a4 judges and described a5 judge in the judged result of at least two Rule of judgment be yes, then judge that described air conditioner exists cold medium shortage, if described a1 judges, described a2 judges, described a3 judges, described a4 judges and described a5 judge in only have the judged result of a Rule of judgment to be or described a1 judges, described a2 judges, described a3 judges, described a4 judges and described a5 judges judged result is no, then judge that described air-conditioner coolant is sufficient.
3. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, and when described air conditioner refrigerating operaton, described C detects and comprises:
Detect the aperture pipe temperature and inlet pipe temperature and each electronic expansion valve of indoor unit of each indoor set;
C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference pipe temperature and inlet pipe temperature of the first indoor set is more than or equal to the 6th preset temperature, and wherein, described first indoor set is any indoor set in described multiple stage indoor set;
C2 judges: judge whether the aperture of described first electronic expansion valve of indoor unit is more than or equal to second and presets aperture,
Wherein, be then judge that described air conditioner exists described first indoor-unit cooling-medium pipe abnormal if described c1 judgement and described c2 judge that the judged result of two Rule of judgment is.
4. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, and when described air conditioner refrigerating operaton, described D detects and comprises:
Detect intake air temperature and the delivery temperature of the aperture of each electronic expansion valve of indoor unit, outdoor environment temperature, indoor environment temperature residing for each indoor set and each compressor;
D1 judges: judge whether degree of supercooling is more than or equal to the 7th preset temperature, wherein, described degree of supercooling is the difference of the mean value of the delivery temperature of each compressor and the delivery temperature of the first compressor, the compressor that described first compressor connects for any off-premises station in described multiple stage off-premises station;
D2 judges: judge whether the aperture mean value of the electric expansion valve of described multiple stage indoor set is less than or equal to the 3rd and presets aperture; And
D3 judges: judge whether the difference of the average high pressure of system and described outdoor environment temperature is more than or equal to the 8th preset temperature, wherein, the average high pressure of described system is the mean value of the delivery temperature of each compressor, the indoor environment temperature mean value of described 8th preset temperature residing for described indoor set is determined
Wherein, if described d1 judges, described d2 judges and described d3 judge in the judged result of at least one Rule of judgment be yes, then judge that described air conditioner exists refrigerant excessive.
5. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and when described air conditioner heat-production runs, described A detects and comprises:
Detect the intake air temperature of outdoor environment temperature and each compressor;
A1 judges, comprise a10 to judge and a12 judgement, wherein, a10 is judged as whether the output power judging the first off-premises station is less than the first preset value, a12 is judged as whether the difference of the intake air temperature judging described outdoor environment temperature and the first compressor is more than or equal to the 9th preset temperature, wherein, described first off-premises station is any off-premises station in described multiple stage off-premises station, described first compressor is the compressor of described first off-premises station, if it is then determine that the judged result that described a1 judges is yes that the judged result that described a10 judges and described a12 judges is;
A2 judges, comprise a20 to judge and a22 judgement, wherein, a20 is judged as judging whether the output power of described first off-premises station is more than or equal to described first preset value and is less than the second preset value, a22 is judged as whether the difference of the intake air temperature judging described outdoor environment temperature and described first compressor is more than or equal to the tenth preset temperature, wherein, described tenth preset temperature is greater than described 9th preset temperature, if it is then determine that the judged result that described a2 judges is yes that the judged result that described a20 judges and described a22 judges is;
A3 judges, comprise a30 to judge and a32 judgement, wherein, a30 is judged as judging whether the output power of described first off-premises station is more than or equal to described second preset value, a32 is judged as whether the difference of the intake air temperature judging described outdoor environment temperature and described first compressor is more than or equal to the 11 preset temperature, wherein, described 11 preset temperature is greater than described tenth preset temperature, if the judged result that described a30 judges and described a32 judges is be, then determine that the judged result that described a3 judges is yes
Wherein, if described a1 judges, described a2 judges, described a3 has the judged result of any one Rule of judgment to be yes in judging, then judge that described air conditioner exists cold medium shortage.
6. detection method according to claim 1, is characterized in that, when described air conditioner heat-production runs, described B detects and comprises:
Detect the intake air temperature of each compressor and the delivery temperature of delivery temperature and the first condenser, wherein, described first condenser is the condenser of the first off-premises station, and described first off-premises station is any off-premises station in described multiple stage off-premises station;
B1 judges: judge whether the delivery temperature of the first compressor is greater than the 12 preset temperature, wherein, described first compressor is the compressor of described first off-premises station;
B2 judges: judge whether the difference of the delivery temperature of system average low pressures and described first condenser is more than or equal to the 5th preset temperature, wherein, described system average low pressures is the mean value of the intake air temperature of each compressor, and described 5th preset temperature is less than described 12 preset temperature;
Wherein, if described b1 judges, described b2 judge in the judged result of at least one Rule of judgment be yes, then judge that described air conditioner exists described first off-premises station refrigerant pipe abnormal.
7. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, and when described air conditioner heat-production runs, described C detects and comprises:
Detect the delivery temperature of each compressor, the inlet pipe temperature of each indoor set and the aperture of each electronic expansion valve of indoor unit;
C1 judges: in the first Preset Time, liaison repeatedly judges whether the difference of the inlet pipe temperature of the average high pressure of system and the first indoor set is more than or equal to the 13 preset temperature, wherein, described first indoor set is any indoor set in described multiple stage indoor set, and the average high pressure of described system is the mean value of the delivery temperature of each compressor;
C2 judges: judge whether the aperture of described first electronic expansion valve of indoor unit is more than or equal to second and presets aperture,
Wherein, be then judge that described air conditioner exists described first indoor-unit cooling-medium pipe abnormal if described c1 judgement and described c2 judge that the judged result of two Rule of judgment is.
8. detection method according to claim 1, is characterized in that, every platform off-premises station is all connected with multiple stage indoor set, and every platform indoor set is all connected with electric expansion valve, and when described air conditioner heat-production runs, described D detects and comprises:
Detect the intake air temperature of each compressor and the aperture of delivery temperature and each electronic expansion valve of indoor unit;
D1 judges: judge whether the difference of the actual degree of superheat and target superheat degree is less than or equal to the first default value, wherein, the described actual degree of superheat is the difference of the intake air temperature of the first compressor and the delivery temperature of the first compressor, the compressor that described first compressor connects for any off-premises station in described multiple stage off-premises station, described target superheat degree is the second default value;
D2 judges: judge whether the aperture mean value of described electronic expansion valve of indoor unit is less than or equal to the 4th and presets aperture; And
D3 judges: judge whether the described actual degree of superheat is less than or equal to the 14 preset temperature,
Wherein, if it is then judge that described air conditioner exists refrigerant excessive that described d1 judgement, described d2 judgement and described d3 judge that the judged result of three Rule of judgment is.
9. detection method according to claim 1, is characterized in that, also comprises:
Detect outdoor environment temperature;
Judge whether described outdoor environment temperature is more than or equal to the 15 preset temperature;
When judging that described outdoor environment temperature is more than or equal to described 15 preset temperature, determine that described air conditioner is in refrigeration operational state; And
When judging that described outdoor environment temperature is less than described 15 preset temperature, determine that described air conditioner is in heating operation state.
10. a pick-up unit for air-conditioner coolant, is characterized in that, comprising:
Whether first detection module, exist cold medium shortage for detecting air conditioner;
Second detection module, off-premises station refrigerant pipe whether is there is extremely for detecting described air conditioner, described air conditioner comprises multiple stage off-premises station, every platform off-premises station is all connected with compressor, detect described air conditioner when described air conditioner refrigerating operaton and whether have that off-premises station refrigerant pipe is abnormal to be comprised: the middle pipe temperature detecting the first off-premises station, outdoor environment temperature, the delivery temperature of the intake air temperature of each compressor and delivery temperature and the first condenser and intake air temperature, wherein, described first off-premises station is any off-premises station in described multiple stage off-premises station, described first condenser is the condenser of described first off-premises station, b1 judges: in the first Preset Time, continuous several times judges whether the difference of pipe temperature and described outdoor environment temperature in described first off-premises station is less than or equal to the 5th preset temperature, b2 judges: judge whether the difference of the intake air temperature of the average high pressure of system and described first condenser is more than or equal to described 5th preset temperature, wherein, the average high pressure of described system is the mean value of the delivery temperature of each compressor, and b3 judges: judge whether the difference of the delivery temperature of system average low pressures and described first condenser is more than or equal to described 5th preset temperature, wherein, described system average low pressures is the mean value of the intake air temperature of each compressor, wherein, if described b1 judges, described b2 judges and described b3 judge in the judged result of at least one Rule of judgment be yes, then judge that described air conditioner exists described first off-premises station refrigerant pipe abnormal,
Whether the 3rd detection module, exist indoor-unit cooling-medium pipe extremely for detecting described air conditioner;
4th detection module, for detecting described air conditioner, whether to there is refrigerant excessive; And
When the testing result of described first detection module, described second detection module, described 3rd detection module and described 4th detection module is no, first judge module, for judging that the refrigerant state of described air conditioner is suitable.
11. pick-up units according to claim 10, is characterized in that, also comprise:
5th detection module, for detecting outdoor environment temperature;
Second judge module, is connected with described 5th detection module, for judging whether described outdoor environment temperature is more than or equal to the 15 preset temperature;
First determination module, for when judging that described outdoor environment temperature is more than or equal to described 15 preset temperature, determines that described air conditioner is in refrigeration operational state; And
Second determination module, for when judging that described outdoor environment temperature is less than described 15 preset temperature, determines that described air conditioner is in heating operation state.
12. pick-up units according to claim 10, it is characterized in that, described pick-up unit also comprises display module, being connected respectively with described 4th detection module with described first detection module, described second detection module, described 3rd detection module, carrying out for showing each detection module the result that described air conditioner detects gained.
The detection system of 13. 1 kinds of air-conditioner coolants, is characterized in that, comprising:
Air conditioner; And
Pick-up unit according to any one of claim 10 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046402.6A CN103293010B (en) | 2012-02-27 | 2012-02-27 | Method and device and system for detecting air conditioner coolants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210046402.6A CN103293010B (en) | 2012-02-27 | 2012-02-27 | Method and device and system for detecting air conditioner coolants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103293010A CN103293010A (en) | 2013-09-11 |
| CN103293010B true CN103293010B (en) | 2015-07-15 |
Family
ID=49094253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210046402.6A Active CN103293010B (en) | 2012-02-27 | 2012-02-27 | Method and device and system for detecting air conditioner coolants |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103293010B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006934B (en) * | 2014-06-05 | 2017-02-15 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| CN104154630B (en) * | 2014-07-22 | 2017-05-24 | 美的集团武汉制冷设备有限公司 | Air conditioning system control method and control device |
| CN104534752B (en) * | 2015-01-26 | 2016-08-24 | 珠海格力电器股份有限公司 | Cooling medium charging system, method and air conditioning unit |
| CN104807146A (en) * | 2015-05-15 | 2015-07-29 | 珠海格力电器股份有限公司 | Anti-freezing protection detection method and device |
| CN105509242B (en) * | 2015-12-23 | 2018-09-25 | 宁波奥克斯电气股份有限公司 | A kind of refrigerant super-addition control method for air conditioner |
| CN106196778B (en) * | 2016-08-30 | 2019-04-12 | 海信科龙电器股份有限公司 | A kind of coolant circulating system and its control method |
| CN106322680B (en) * | 2016-09-07 | 2018-08-07 | 珠海格力电器股份有限公司 | A kind of air-conditioning warning device and method |
| CN106545973B (en) * | 2016-11-29 | 2019-07-26 | 广东美的暖通设备有限公司 | Multi-line system and its coolant quantity determination method |
| CN107101323A (en) * | 2017-04-13 | 2017-08-29 | 青岛海尔空调电子有限公司 | The coolant quantity detection method and device of air conditioner |
| CN107477925B (en) * | 2017-08-10 | 2020-01-31 | 四川长虹电器股份有限公司 | Device and method for detecting failure of pipeline insulating layers of indoor unit and outdoor unit of air conditioner |
| CN107906671B (en) * | 2017-10-31 | 2020-08-07 | 广东美的暖通设备有限公司 | Refrigerant quantity judging method and system |
| CN108131795B (en) * | 2017-12-19 | 2020-04-17 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner and computer readable storage medium |
| CN108548273A (en) * | 2018-04-23 | 2018-09-18 | 珠海晖达科技有限公司 | A kind of air-conditioning fault detection method and device |
| CN110878979B (en) * | 2018-09-06 | 2021-05-21 | 宁波奥克斯电气股份有限公司 | Detection method and detection device for air conditioner refrigerant filling types |
| CN110940042B (en) * | 2018-09-21 | 2021-05-18 | 奥克斯空调股份有限公司 | Refrigerant leakage detection method and air conditioning device |
| CN109764490A (en) * | 2019-01-21 | 2019-05-17 | 宁波奥克斯电气股份有限公司 | Air conditioner coolant supply state detection method, device and air-conditioning and storage medium |
| CN109631228B (en) * | 2019-01-31 | 2020-07-28 | 四川长虹空调有限公司 | Method and system for judging rapid leakage of refrigerant of refrigeration system |
| CN110068103B (en) * | 2019-04-29 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Refrigerant quantity judging method and control method |
| CN110762770A (en) * | 2019-11-11 | 2020-02-07 | 宁波奥克斯电气股份有限公司 | Control method and control device for fluorine deficiency protection of air conditioner and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763793Y (en) * | 2004-12-08 | 2006-03-08 | 海信集团有限公司 | Sampling detector for domestic air conditioner |
| CN202133556U (en) * | 2011-06-23 | 2012-02-01 | 广州万宝集团有限公司 | Simulation system for cycle of refrigerant |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247754B1 (en) * | 1997-08-27 | 2000-04-01 | 윤종용 | Apparatus for testing an outdoor unit for an air-conditioner |
| KR100854132B1 (en) * | 2007-11-28 | 2008-08-26 | 주식회사 케이티이엔지 | Testing apparatus of automobile air conditioner |
-
2012
- 2012-02-27 CN CN201210046402.6A patent/CN103293010B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2763793Y (en) * | 2004-12-08 | 2006-03-08 | 海信集团有限公司 | Sampling detector for domestic air conditioner |
| CN202133556U (en) * | 2011-06-23 | 2012-02-01 | 广州万宝集团有限公司 | Simulation system for cycle of refrigerant |
Non-Patent Citations (1)
| Title |
|---|
| 冯玉琪等.家用空调器的选择、使用、保养与维修.《实用空调制冷设备安装维修技术666问》.中国计量出版社,2000,第230-237页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103293010A (en) | 2013-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103293010B (en) | Method and device and system for detecting air conditioner coolants | |
| KR102333207B1 (en) | Diagnosis method of air conditioner | |
| CN105091215B (en) | Multi-gang air-conditioner lacks the start-up detection method and device of fluorine | |
| CN106247530B (en) | More air-conditioning self checking methods are dragged in multitube frequency conversion one | |
| EP2204621A2 (en) | Air conditioner and method for detecting malfunction thereof | |
| CN104819547A (en) | Method and system for fluorine lacking detection and protection during startup of variable frequency air-conditioning system | |
| CN105065249B (en) | Compressor performance detection means, air-conditioning system and control method with the device | |
| JP5787604B2 (en) | Vehicle air conditioner failure diagnosis system and failure diagnosis device | |
| CN102645327B (en) | Method for detecting welding blockage of electronic outdoor unit expansion valves of multi-coupled air-conditioning unit | |
| CN107504732A (en) | A kind of refrigeration system refrigerant how many decision method and decision maker | |
| CN105627612B (en) | The refrigeration control method of outdoor unit refrigerant pipe-line system, air conditioner and air conditioner | |
| CN112944586B (en) | Control method of multi-split air conditioning system | |
| KR102560986B1 (en) | Diagnosis method of air conditioner | |
| CN105588223B (en) | A kind of outdoor unit, defrosting control system and method | |
| CN104535884B (en) | Judge domestic multi-connection machine indoor set data wire whether the method for wrong | |
| CN110285541B (en) | Multi-split air conditioner leakage position automatic positioning method, device and equipment | |
| CN111486612A (en) | Multi-split air conditioning system, heating valve leakage detection method and device thereof, and storage medium | |
| CN105526676B (en) | Judge heating when multi-connected machine indoor heat exchanger whether the method for hydrops | |
| CN108917091A (en) | A kind of air conditioner intelligent test method and its air conditioner | |
| CN102967450B (en) | Method for detecting whether outdoor unit check valve of split type air conditioning unit is installed reversely | |
| US7854134B2 (en) | Air conditioner | |
| CN202442730U (en) | Detection device and detection system of air conditioner refrigerant | |
| CN105546736A (en) | Method for solving accumulated liquid of indoor heat exchanger of multi-split air conditioner during heating | |
| CN110926544B (en) | Detection equipment for heat exchanger unit and online automatic detection method thereof | |
| KR100869959B1 (en) | Test control method for airconditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |