CN101813358B - Air conditioning unit and method for detecting operation state thereof - Google Patents
Air conditioning unit and method for detecting operation state thereof Download PDFInfo
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- CN101813358B CN101813358B CN 200910067900 CN200910067900A CN101813358B CN 101813358 B CN101813358 B CN 101813358B CN 200910067900 CN200910067900 CN 200910067900 CN 200910067900 A CN200910067900 A CN 200910067900A CN 101813358 B CN101813358 B CN 101813358B
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- condenser
- temperature
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- compressor
- conditioner
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Abstract
The invention relates to an air conditioning unit and a method for detecting the operation state thereof. A refrigerant outlet of a compressor and a condenser are respectively provided with a temperature sensor; the measured refrigerant discharge temperature, the condenser temperature and the compressor input power are respectively connected with a difference comparator; and each measured numerical value is compared with the standard value by the difference comparator so as to judge the working conditions of parts such as the condenser, the compressor and the like of the air conditioning unit, and then the working conditions are displayed to users directly by a display to enable the users to learn about the problems in the air conditioning unit intuitively and perform maintenance and partreplacement on the air conditioning unit timely according to the prompt of the display, thus ensuring the air conditioning unit to be a good working state, maintaining the working efficiency of the air conditioning unit in refrigeration and playing a role in saving energy source.
Description
Technical field
The present invention relates to the technical field of air-conditioner, be that a kind of refrigerant exit place at condenser and compressor arranges temperature inductor specifically, by the relation between difference comparator comparison condenser temperature and compressor discharge temperature and input power, thereby judge air-conditioner problem air-conditioner and the method for detecting operation state thereof that produces in service.
Background technology
Usually, air-conditioner is to freeze or make warmly for indoor environment, and the machine of the indoor environment of Creating Comfort is divided into window air conditioner and detachable air conditioner haply thus.
Though integral air conditioner is identical on function with detachable air conditioner, but integral air conditioner is provided with the parts of refrigeration, heat radiation in same casing, through wallsly be arranged on metope or be arranged on the window, window air conditioner is modal integral air conditioner, and detachable air conditioner is provided with refrigerating plant at indoor set, be provided with heat radiation and compression set at off-premises station, indoor set utilizes the refrigerant conduit to be connected with off-premises station.
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the window air conditioner of prior art.
As shown in Figure 1, existing window air conditioner is by the cabinet 2 that forms appearance; The chassis 3 of parts is installed; Be arranged at the indoor panel 4 of indoor, chassis; Indoor panel 4 downsides are formed with the air inlet 4a that air is drawn into the air-conditioner inner space; Its upside forms the air after the air-conditioner internal regulation is discharged into indoor exhaust outlet 4b; The control part (not shown) of control and regulation air-conditioner operating condition is arranged on the rear side of indoor panel, and the control panel 20 of control part front end combines with indoor panel and exposes from the opening that indoor panel is reserved; The inboard of indoor panel 4 sets gradually evaporimeter 6; Indoor fan 7 and air guiding device 8 (8a, 8b, 8c); Air guiding device 8 comprises the air guide plate 8a of installation room internal fan; Be mounted with baffle plate 8b in air guide plate 8a front; Have on the baffle plate 8b and will be directed to the through hole of indoor fan 7 by evaporimeter 6 flow air, be installed in the place ahead, baffle plate 8b upside and air guide plate 8a upper end, the wind scooper 8c of the exhaust outlet 4b on the guiding air flow indoor panel.Air guide plate 8a is divided into indoor part and outside part with window air conditioner, has cut off the circulation between room air and the outdoor air.The outdoor section of air guide plate 8a back is provided with fan electromotor 14; Guide bracket 10; Outdoor fan 11, condenser 12, compressor 16 and have into, the outdoor panel (not shown) of exhaust outlet; It is outer and extend certain distance, junction chamber internal fan 7 and outdoor fan 11 respectively that design has gathering on the chassis 3, the axial rotary rightabout of discharging the drip tray motor 14 of the condensed water that evaporimeter flows down stretches out casing.Compressor 16 and motor 14 runnings when inserting power supply, the compressed machine of refrigerant 16 compression backs are by condenser 12, expansion valve (not shown), evaporimeter 6, and then get back to compressor and circulate, running along with fan electromotor 14, indoor fan 7 and outdoor fan 11 begin to rotate, and room air enters air conditioner by the air inlet 4a of indoor panel 4, carries out heat exchange with evaporimeter 6, after becoming cold air, flow back to indoor by the exhaust outlet 4b of indoor panel 4; Outdoor air enters the outdoor section of air-conditioner by the air-inlet grille of outdoor panel, becomes hot-air and be discharged in the outside atmosphere environment outside the air-conditioner by outdoor panel exhaust outlet after outdoor fan 11, condenser 12 carry out heat exchange.
But, there is following not enough point in the aforesaid prior art:
The air-conditioner inside of prior art does not possess carries out device and the parts that conditioners running conditions detects, therefore the running status of inner each parts of air-conditioner can't be learnt intuitively from the outside, the user can't accomplish to understand at any time to the real ruuning situation of air-conditioner, after air-conditioner uses a period of time unavoidably coolant leakage can appear, the wearing and tearing of compressor internal works, pile up problems such as too many dust on the condenser, if above-mentioned situation takes place then can cause the performance of air-conditioner to reduce, energy consumption increases, but the external manifestation of the problems referred to above is very not obvious, for the user and be not easy to discover, therefore caused a large amount of energy wastes.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of refrigerant exit place at condenser and compressor temperature inductor is set, by the relation between difference comparator comparison condenser temperature and compressor discharge temperature and input power, thereby judge air-conditioner problem air-conditioner and the method for detecting operation state thereof that produces in service.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Air-conditioner of the present invention comprises: compressor, refrigerant is compressed, and make refrigerant become the liquid of HTHP, promote refrigerant and in the refrigerant pipe, flow; Condenser under the effect of outdoor fan, carries out exchange heat with outdoor air, and heat is dispersed to outdoor, reduces the refrigerant temperature in the condenser refrigerant pipe; Expansion valve, the liquid refrigerants of the high pressure expansion valve of flowing through is converted into gaseous coolant; Evaporimeter, under the effect of indoor fan, carry out heat exchange with room air, absorb heat by refrigerant evaporation, the temperature of room air is reduced, refrigerant exit at compressor arranges the refrigerant discharge temperature that the discharge temperature sensor is used for measuring compressor, at condenser the temperature that the condensation temperature sensor is used for measuring condenser is set simultaneously, and the discharge temperature sensor is connected with the first difference comparator with the condensation temperature sensor; At compressor the input power sensor is set, the condensation temperature sensor is connected with the second difference comparator with the input power sensor simultaneously; Also comprise in the above-mentioned air-conditioner for the display that shows the air-conditioner duty.
In the detection method of the running status based on above-mentioned air-conditioner of the present invention, the temperature of condensation temperature sensor measurement condenser, the discharge temperature sensor measurement goes out the refrigerant discharge temperature at compressor outlet place, the temperature of condenser and discharge temperature are sent to the first difference comparator simultaneously, in the first difference comparator, calculate the difference of discharge temperature and condenser temperature, it is the exhaust degree of superheat, the standard exhaust degree of superheat during with this difference and air-conditioner operate as normal compares, if the result who calculates is greater than the standard exhaust degree of superheat of air-conditioner, then can judge the coolant quantity deficiency in the refrigerant pipe, and then remind user's air-conditioner to be in the duty of cold medium shortage by display.
In the detection method of the running status based on above-mentioned air-conditioner of the present invention, the condensation temperature sensor measurement goes out the temperature of condenser, the input power sensor measurement goes out the input power of compressor, the temperature of condenser and the input power value of compressor are imported the second difference comparator simultaneously, store the condenser temperature of air-conditioner when normally moving and the standard value of the input power of compressor in the second difference comparator, the temperature of the condenser measured and the value of compressor power input are compared with standard value respectively: when the input power overgauge input power of the compressor that measures, and the temperature of condenser is during less than the standard condenser temperature, then the seal of compressor internal part goes wrong, and exists between compressor inner high voltage side and the low-pressure side and leaks; When condenser temperature overgauge temperature and the compressor power input overgauge input power measured, then the dust of condenser surface existence too much causes the exchange capability of heat of condenser to reduce, when the deviation of measured value and standard value during greater than deviation range, remind user's air-conditioner to be in compressor inter deterioration or the too much situation of condenser surface dust by display.
Advantage and good effect that the present invention has are:
In the air-conditioner of the present invention, on the refrigerant exit of compressor and condenser, temperature sensor is set respectively, and with the refrigerant discharge temperature of measuring, the temperature of condenser, compressor power input is connected with the difference comparator respectively, do contrast with standard value respectively by each numerical value that the difference comparator will be measured, thereby judge the working condition that draws parts such as air-conditioner condenser and compressor, directly give the user by display exhibits with working condition then, make the user can recognize the inner problem that exists of air-conditioner intuitively, and in time air-conditioner is safeguarded and part replacement according to the prompting on the display, thereby can guarantee that air-conditioner is in good working order all the time, keep the operating efficiency of air-conditioner when refrigeration, play the effect of saving the energy.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the window air conditioner of prior art;
Fig. 2 is the principle sketch of air-conditioner of the present invention;
Fig. 3 is the testing process figure of detection method of the running status of air-conditioner of the present invention.
Critical piece symbol description in the accompanying drawing:
2: cabinet 3: chassis
4: indoor panel 4a: air inlet
4b: exhaust outlet 6: evaporimeter
7: indoor fan 8: air guiding device
8a: air guide plate
8b: baffle plate 8c: wind scooper
10: guide bracket
11: outdoor fan 12: condenser
14: fan electromotor 16: compressor
The specific embodiment
It is following that the present invention will be described in detail with reference to drawings and Examples.
Fig. 2 is the principle sketch of air-conditioner of the present invention; Fig. 3 is the testing process figure of detection method of the running status of air-conditioner of the present invention.
As Fig. 2, shown in Figure 3, in the air-conditioner of the present invention, 16 pairs of refrigerants of compressor compress, and make refrigerant become the liquid of HTHP, promote refrigerant and flow in the refrigerant pipe; Condenser 12 carries out exchange heat with outdoor air under the effect of outdoor fan, heat is dispersed to outdoor, reduces the refrigerant temperature in the condenser refrigerant pipe; Expansion valve 20 is converted into gaseous coolant with the liquid refrigerants of the high pressure expansion valve of flowing through; Evaporimeter 6 is under the effect of indoor fan, carry out heat exchange with room air, absorb heat by refrigerant evaporation, the temperature of room air is reduced, refrigerant exit at compressor arranges the refrigerant discharge temperature that the discharge temperature sensor is used for measuring compressor, at condenser the temperature that the condensation temperature sensor is used for measuring condenser is set simultaneously, the discharge temperature sensor is connected with the first difference comparator with the condensation temperature sensor; At compressor the input power sensor is set, the condensation temperature sensor is connected with the second difference comparator with the input power sensor simultaneously; Also comprise in the above-mentioned air-conditioner for the display that shows the air-conditioner duty.
In the detection method of the running status based on above-mentioned air-conditioner of the present invention, the temperature of condensation temperature sensor measurement condenser, the discharge temperature sensor measurement goes out the refrigerant discharge temperature at compressor outlet place, the temperature of condenser and discharge temperature are sent to the first difference comparator simultaneously, in the first difference comparator, calculate the difference of discharge temperature and condenser temperature, it is the exhaust degree of superheat, the standard exhaust degree of superheat during with this difference and air-conditioner operate as normal compares, if the result who calculates is greater than the standard exhaust degree of superheat of air-conditioner, then can judge the coolant quantity deficiency in the refrigerant pipe, and then remind user's air-conditioner to be in the duty of cold medium shortage by display.This is because under the situation of cold medium shortage, the coolant quantity of air-conditioner condenser inside also reduces accordingly, cause the condensation temperature of condenser to decrease, and the discharge temperature variable quantity of compressor refrigerant exit is little at this moment, thereby make the difference between discharge temperature and the condensation temperature become big, i.e. the exhaust degree of superheat is greater than the standard value of air-conditioner when normally moving.
In the detection method of the running status based on above-mentioned air-conditioner of the present invention, the condensation temperature sensor measurement goes out the temperature of condenser, the input power sensor measurement goes out the input power of compressor, the temperature of condenser and the input power value of compressor are imported the second difference comparator simultaneously, store the condenser temperature of air-conditioner when normally moving and the standard value of the input power of compressor in the second difference comparator, the temperature of the condenser measured and the value of compressor power input are compared with standard value respectively: when the input power overgauge input power of the compressor that measures, and the temperature of condenser is during less than the standard condenser temperature, then the seal of compressor internal part goes wrong, and exists between compressor inner high voltage side and the low-pressure side and leaks; When condenser temperature overgauge temperature and the compressor power input overgauge input power measured, then the dust of condenser surface existence too much causes the exchange capability of heat of condenser to reduce, when the deviation of measured value and standard value during greater than deviation range, remind user's air-conditioner to be in compressor inter deterioration or the too much situation of condenser surface dust by display.
In the air-conditioner of the present invention, on the refrigerant exit of compressor and condenser, temperature sensor is set respectively, and with the refrigerant discharge temperature of measuring, the temperature of condenser, compressor power input is connected with the difference comparator respectively, do contrast with standard value respectively by each numerical value that the difference comparator will be measured, thereby judge the working condition that draws parts such as air-conditioner condenser and compressor, directly give the user by display exhibits with working condition then, make the user can recognize the inner problem that exists of air-conditioner intuitively, and in time air-conditioner is safeguarded and part replacement according to the prompting on the display, thereby can guarantee that air-conditioner is in good working order all the time, keep the operating efficiency of air-conditioner when refrigeration, play the effect of saving the energy.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (3)
1. air-conditioner comprises: compressor, refrigerant is compressed, and make refrigerant become the liquid of HTHP, promote refrigerant and in the refrigerant pipe, flow; Condenser under the effect of outdoor fan, carries out exchange heat with outdoor air, and heat is dispersed to outdoor, reduces the refrigerant temperature in the condenser refrigerant pipe; Expansion valve, the liquid refrigerants of the high pressure expansion valve of flowing through is converted into gaseous coolant; Evaporimeter, under the effect of indoor fan, carry out heat exchange with room air, absorb heat by refrigerant evaporation, the temperature of room air is reduced, it is characterized in that: the refrigerant exit at compressor arranges the refrigerant discharge temperature that the discharge temperature sensor is used for measuring compressor, at condenser the temperature that the condensation temperature sensor is used for measuring condenser is set simultaneously, the discharge temperature sensor is connected with the first difference comparator with the condensation temperature sensor, and the standard exhaust degree of superheat during with the difference of refrigerant discharge temperature and condenser temperature and air-conditioner operate as normal compares; At compressor the input power sensor is set, condensation temperature sensor and input power sensor are connected with the second difference comparator simultaneously, and the standard value of the condenser temperature the when value of the temperature of condenser and compressor power input is normally moved with air-conditioner respectively and the input power of compressor compares; Also comprise in the above-mentioned air-conditioner for the display that shows the air-conditioner duty.
2. method for detecting operation state based on the described air-conditioner of claim 1, it is characterized in that: the temperature of condensation temperature sensor measurement condenser, the discharge temperature sensor measurement goes out the refrigerant discharge temperature at compressor outlet place, the temperature of condenser and discharge temperature are sent to the first difference comparator simultaneously, in the first difference comparator, calculate the difference of discharge temperature and condenser temperature, it is the exhaust degree of superheat, the standard exhaust degree of superheat during with this difference and air-conditioner operate as normal compares, if the result who calculates is greater than the standard exhaust degree of superheat of air-conditioner, then can judge the coolant quantity deficiency in the refrigerant pipe, and then remind user's air-conditioner to be in the duty of cold medium shortage by display.
3. method for detecting operation state based on the described air-conditioner of claim 1, it is characterized in that: the condensation temperature sensor measurement goes out the temperature of condenser, the input power sensor measurement goes out the input power of compressor, the temperature of condenser and the input power value of compressor are imported the second difference comparator simultaneously, store the condenser temperature of air-conditioner when normally moving and the standard value of the input power of compressor in the second difference comparator, the temperature of the condenser measured and the value of compressor power input are compared with standard value respectively: when the input power overgauge input power of the compressor that measures, and the temperature of condenser is during less than the standard condenser temperature, then the seal of compressor internal part goes wrong, and exists between compressor inner high voltage side and the low-pressure side and leaks; When condenser temperature overgauge temperature and the compressor power input overgauge input power measured, then the dust of condenser surface existence too much causes the exchange capability of heat of condenser to reduce, when the deviation of measured value and standard value during greater than deviation range, remind user's air-conditioner to be in compressor inter deterioration or the too much situation of condenser surface dust by display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910067900 CN101813358B (en) | 2009-02-20 | 2009-02-20 | Air conditioning unit and method for detecting operation state thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910067900 CN101813358B (en) | 2009-02-20 | 2009-02-20 | Air conditioning unit and method for detecting operation state thereof |
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| CN101813358A CN101813358A (en) | 2010-08-25 |
| CN101813358B true CN101813358B (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910067900 Expired - Fee Related CN101813358B (en) | 2009-02-20 | 2009-02-20 | Air conditioning unit and method for detecting operation state thereof |
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| CN103940052B (en) * | 2013-01-21 | 2017-06-06 | 珠海格力电器股份有限公司 | Air-conditioner and its fault detection method |
| CN103884480B (en) * | 2014-03-14 | 2016-07-06 | 广东美的制冷设备有限公司 | Coolant leakage detection method, refrigerant leakage detecting system and air-conditioner |
| CN104764243B (en) * | 2015-03-31 | 2017-03-08 | 广东美的暖通设备有限公司 | multiple on-line system |
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| CN105115099B (en) * | 2015-07-21 | 2017-09-19 | 广东美的制冷设备有限公司 | The dirty stifled detection method and device of air conditioner |
| CN106014946B (en) * | 2016-06-16 | 2018-09-18 | 珠海格力电器股份有限公司 | A kind of control method, device and the refrigeration system in compressor service life |
| CN107842975A (en) * | 2016-09-20 | 2018-03-27 | 中国电信股份有限公司 | Special air conditioning for device room running status determines method, apparatus, system and user terminal |
| CN106642555A (en) * | 2016-12-01 | 2017-05-10 | 海信（广东）空调有限公司 | Judgment method and device for air-conditioner refrigerant leakage |
| CN107606741A (en) * | 2017-09-28 | 2018-01-19 | 青岛海尔空调电子有限公司 | The dirty stifled detection control method of air-conditioner outdoor unit |
| CN109028459A (en) * | 2018-09-11 | 2018-12-18 | 海信（山东）空调有限公司 | Air-conditioner control method and air conditioner |
| CN110895025B (en) * | 2018-09-12 | 2021-03-12 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner using same |
| CN109144033B (en) * | 2018-09-19 | 2020-06-16 | 珠海格力电器股份有限公司 | Method for collecting replacement records of parts of equipment and air conditioning system |
| CN111023464B (en) * | 2019-12-16 | 2021-05-14 | 宁波奥克斯电气股份有限公司 | Heat exchanger heat exchange efficiency attenuation detection method and device of air conditioner and air conditioner |
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| CN101813358A (en) | 2010-08-25 |
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