CN105065249A - Compressor performance detection device, air conditioning system with same and control method - Google Patents
Compressor performance detection device, air conditioning system with same and control method Download PDFInfo
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- CN105065249A CN105065249A CN201510550873.4A CN201510550873A CN105065249A CN 105065249 A CN105065249 A CN 105065249A CN 201510550873 A CN201510550873 A CN 201510550873A CN 105065249 A CN105065249 A CN 105065249A
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000004378 air conditioning Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 239000006200 vaporizer Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The invention relates to a compressor performance detection device, which comprises a compressor (1), an outdoor heat exchanger (2), an indoor heat exchanger (3), an exhaust pipe temperature sensing bulb (4) arranged at the outlet of the compressor, an outdoor environment temperature sensing bulb (5) used for detecting the outdoor environment temperature, an indoor environment temperature sensing bulb (6) used for detecting the indoor environment temperature, a first detection device used for detecting the low-pressure saturation temperature Te of an air conditioning system and a second detection device used for detecting the high-pressure saturation temperature Td of the air conditioning system And (4) effective judgment conditions. The invention also relates to an air conditioning system with the device and a control method.
Description
Technical field
The invention belongs to air-conditioning technical field, be specifically related to a kind of compressor performance detection device, the air-conditioning system with this device and controlling method.
Background technique
Existing multi-online air-conditioning system, compressor air suction mouth dirty stifled time, seldom can judge in time concrete fault and in time pre-alarm and/or remind client, general is all just find after waiting compressor to damage, or just simply detect compressor exhaust temperature, judge that whether system is abnormal.But such detection means cannot judge that system refrigerant reduces or dirty stifled etc. the situation of compressor air suction mouth.
The whether dirty stifled situation of compressor air suction mouth accurately cannot be detected because above-mentioned existing air-conditioning system exists, thus accurately cannot detect the defect of compressor performance, research and design of the present invention goes out a kind of new compressor performance detection device and has air-conditioning system and the controlling method of this device.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome in prior art and accurately cannot detects the whether dirty stifled situation of compressor air suction mouth, thus accurately cannot detect the defect of compressor performance, thus a kind of new compressor performance detection device, the air-conditioning system with this device and controlling method are provided.
A kind of compressor performance detection device provided by the invention, comprise compressor, outdoor heat exchanger, indoor heat exchanger, its also comprise be arranged at compressor outlet outlet pipe temperature-sensitive bag, for detect outdoor environment temperature outdoor environment temperature-sensitive bag, for detecting the indoor environment temperature-sensitive bag of indoor environment temperature, and for detecting first detection device of air-conditioning system low pressure saturation temperature Te and the second detection device for detecting air-conditioning system high pressure saturation temperature Td.
Preferably, described first detection device comprises the low pressure sensor be arranged on described compressor air suction lateral line, and described second detection device comprises the high pressure sensor be arranged on described compressor air-discharging lateral line.
Preferably, described indoor heat exchanger is at least 1.
The present invention also provides a kind of air-conditioning system, and it comprises aforesaid compressor performance detection device, and it also includes electric expansion valve, and described electric expansion valve is arranged on the connecting pipeline between described indoor heat exchanger and described outdoor heat exchanger.
Preferably, described air-conditioning system comprises outdoor unit and indoor set.
Preferably, described outdoor unit comprises described compressor, described outdoor heat exchanger and four-way valve.
Preferably, described indoor set comprises described indoor heat exchanger and electronic expansion valve of indoor unit.
Preferably, described air-conditioner set is heat pump unit or cooling machine set.
The present invention also provides a kind of compressor control method, and it uses aforesaid compressor performance detection device to control compressor.
Preferably, when compressor operating, according to outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, judge that whether dirty compressor is stifled.
Preferably, the result judged if above-mentioned is yes, starts warning immediately, and points out client to keep in repair.
Preferably, comprise step: when system heats, detect above temperature parameter and compare, as " T1-Te≤x DEG C " and " Td-T2≤y DEG C " and " T3 >=z DEG C " three conditions meet simultaneously time; Now judge " compressor is serious dirty stifled ", now close down compressor, and the signal showing trouble signal on the display apparatus and need process, x, y, z is here setting reduced temperature.
Preferably, when cooling system, detect above temperature parameter and compare, as " T2-Te≤x DEG C " and " Td-T1≤y DEG C " and " T3 >=z DEG C " three conditions meet simultaneously time; Judge " compressor is serious dirty stifled ", and close down compressor, and the signal showing trouble signal on the display apparatus and need process, x, y, z is here setting reduced temperature.
A kind of compressor performance detection device provided by the invention has following beneficial effect:
1. according to compressor performance detection device of the present invention, can judge whether compressor exists the dirty stifled situation of intakeport in time, exactly, thus judge that whether compressor operating is abnormal in time, exactly, be the exception because which kind of reason causes, reach the effect accurately detecting compressor performance.
2. according to compressor performance detection device of the present invention, can operate accordingly according to testing result for after-stage (comprise carry out shutdown operation and show fault and need the signal of maintenance process) accurate and effective Rule of judgment is provided.
Accompanying drawing explanation
Fig. 1 is the structural representation with the air-conditioning system of compressor performance detection device of the present invention.
In figure, reference character is expressed as:
1-compressor, 2-outdoor heat exchanger, 3-indoor heat exchanger, 4-outlet pipe temperature-sensitive bag, 5-outdoor environment temperature-sensitive bag, 6-indoor environment temperature-sensitive bag, 7-electric expansion valve, 8-indoor set, 9-four-way valve, 10-electronic expansion valve of indoor unit, 11-gas-liquid separation device, the 12-the first stop valve, 13-the second stop valve, 14-low pressure sensor, 15-high pressure sensor, 16-shell top temperature-sensitive bag.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the invention provides a kind of compressor performance detection device, comprise compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3, its also comprise be arranged at compressor outlet outlet pipe temperature-sensitive bag 4, for detect outdoor environment temperature outdoor environment temperature-sensitive bag 5, for detecting the indoor environment temperature-sensitive bag 6 of indoor environment temperature, and for the first temperature-detecting device (not shown) of detecting air-conditioning system low pressure saturation temperature Te and the second temperature-detecting device (not shown) for detecting air-conditioning system high pressure saturation temperature Td.
According to compressor performance detection device of the present invention, by arranging temperature-sensitive bag and the temperature-detecting device of above-mentioned many places, can accurately and timely detect outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, and the single temperature value among above-mentioned multiple temperature value is compared with between target setting temperature value, and/or the difference between appointment two temperature values is compared mutually with between target setting difference, can be timely, judge whether compressor exists the situation of intakeport dirty stifled (such as due to blocking etc. that foul causes) exactly, thus in time, judge that whether compressor operating is abnormal exactly, it is the exception because which kind of reason causes, thus reach the effect accurately detecting compressor performance, can also operate accordingly according to testing result for after-stage (comprise carry out shutdown operation and show fault and need the signal of maintenance process) accurate and effective Rule of judgment is provided.
Preferably, described first detection device comprises the low pressure sensor 14 be arranged on described compressor 1 suction side pipeline, and the force value detected by the low pressure sensor 14 being arranged on compressor 1 suction side calculates corresponding system low-voltage saturation temperature Te; Described second detection device comprises the high pressure sensor 15 be arranged on described compressor 1 exhaust side pipeline, and the force value detected by the high pressure sensor 15 being arranged on compressor 1 exhaust side calculates corresponding system high pressure saturation temperature Td.
Preferably, described indoor heat exchanger 3 is at least 1 (i.e. one or more).The place of carrying out heat exchange can be needed to carry out heat exchange (or heat exchange) for indoor many places by arranging multiple indoor heat exchanger 3, arranging 1 heat exchanger can be effectively cost-saving, and above-mentioned different schemes can be selected according to different actual demand.
Preferably, when described indoor heat exchanger 3 is multiple, temperature-detecting device is arranged at least 1 of described indoor heat exchanger 3.Can as required to the indoor heat exchanger set temperature detection device of required detection (or conventional) by this kind of scheme.Temperature-detecting device is preferably temperature-sensitive bag or temperature measuring set or thermometer etc.
Present invention also offers a kind of air-conditioning system, it comprises aforesaid compressor performance detection device, and it also includes electric expansion valve 7, and described electric expansion valve 7 is arranged on the connecting pipeline between described indoor heat exchanger 3 and described outdoor heat exchanger 2.According to the air-conditioning system with aforementioned compressor device for detecting performance of the present invention, by arranging temperature-sensitive bag and the temperature-detecting device of above-mentioned many places, can accurately and timely detect outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, and the result of above-mentioned multiple temperature value separately or between two difference is compared mutually with between target temperature value, can be timely, judge whether compressor exists the situation of intakeport dirty stifled (such as due to blocking etc. that foul causes) exactly, thus in time, judge that whether compressor operating is abnormal exactly, it is the exception because which kind of reason causes, thus reach the effect accurately detecting compressor performance, can also operate accordingly according to testing result for after-stage (comprise carry out shutdown operation and show fault and need the signal of maintenance process) accurate and effective Rule of judgment is provided.Arranging electric expansion valve 7 can make this air-conditioning system can form a complete refrigeration cycle at above-mentioned pipeline.
Preferably, described air-conditioning system comprises outdoor unit and indoor set 10.Can effectively by air-conditioning system from structure separately by being set to air-conditioning system to comprise outdoor unit and indoor set 10, realize evaporation endothermic, the effect of condensation heat release and object.
Preferably, described outdoor unit comprises described compressor 1, described outdoor heat exchanger 2 and four-way valve 9.Compressor 1 is in order to compress refrigeration agent, outdoor heat exchanger 2 is in order to carry out heat exchange between outdoor environment, in the gas exhaust piping that four-way valve 9 is arranged on compressor and suction line, in order to by compression after refrigeration agent import condenser (can be outdoor heat exchanger, also can be indoor heat exchanger), be connected with vaporizer by compressor air suction pipeline (can be outdoor heat exchanger, also can be indoor heat exchanger), the switching between two kinds of difference in functionalitys that can realize freezing to indoor and heating is regulated by the conversion of four-way valve 9, reach the object of multi-function air conditioner.
Preferably, described indoor set 10 comprises described indoor heat exchanger 3 and electronic expansion valve of indoor unit 10.Indoor heat exchanger 3 is in order to carry out heat exchange between indoor environment, and electronic expansion valve of indoor unit 10, in order to carry out certain throttling expansion to refrigeration agent, reduces the burden of electric expansion valve 7 when high refrigeration flow.
Preferably, described air-conditioner set is heat pump unit.The refrigeration agent now compressor being discharged by effective adjustment of four-way valve 9, through indoor heat exchanger heat release, through outdoor heat exchanger heat absorption after throttling expansion, is finally got back in compressor, for indoor provide heat effectively.
Preferably, described air-conditioner set is cooling machine set.The refrigeration agent now compressor 1 being discharged by effective adjustment of four-way valve 9, through outdoor heat exchanger 2 heat release, absorbs heat through indoor heat exchanger 3, finally gets back in compressor, for indoor provide cold effectively after throttling expansion.
Preferably, described compressor air suction pipeline is provided with gas-liquid separation device 11, effectively to realize the effect of gas-liquid separation, ensures the effective mass dryness fraction entering the gas of compressor inlet.
Preferably, pipeline between described indoor set 8 and described four-way valve 9 is also provided with the first stop valve 12, pipeline between described indoor set 8 and described electric expansion valve 7 is also provided with the second stop valve 13, in order to control the fluid in above-mentioned pipeline.
Preferably, the inlet ductwork of described gas-liquid separation device 11 is also provided with low pressure sensor 14, in order to detect the pressure (low voltage side) via the refrigeration agent after vaporizer heat absorption evaporation.Described exhaust outlet of compressor pipeline is also provided with high pressure sensor 15, in order to detect via the refrigerant pressure (high pressure side) after compressor compresses.The shell top of described compressor case is also provided with shell top temperature-sensitive bag 16, in order to detect the temperature on described compressor case shell top.
The present invention also provides a kind of compressor control method, and it uses aforesaid compressor performance detection device to control compressor.According to the compressor control method with aforementioned compressor device for detecting performance of the present invention, by arranging temperature-sensitive bag and the temperature-detecting device of above-mentioned many places, can accurately and timely detect outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, and the result of above-mentioned multiple temperature value separately or between two difference is compared mutually with between target temperature value, can be timely, judge whether compressor exists the situation of intakeport dirty stifled (such as due to blocking etc. that foul causes) exactly, thus in time, judge that whether compressor operating is abnormal exactly, it is the exception because which kind of reason causes, thus reach the effect accurately controlling compressor, can also operate accordingly according to testing result for after-stage (comprise carry out shutdown operation and show fault and need the signal of maintenance process) accurate and effective Rule of judgment is provided.
Preferably, when compressor operating, according to outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, judge whether compressor exists dirty stifled (such as due to blocking etc. that foul causes).Can judge whether compressor exists the situation of intakeport dirty stifled (such as due to blocking etc. that foul causes) in time, exactly, thus judge that whether compressor operating is abnormal in time, exactly, thus reach the effect accurately controlling compressor.
Preferably, before compressor damage, the result judged if above-mentioned is yes, starts warning immediately, and points out client to keep in repair; If the result of above-mentioned judgement is no, normally run according to the running of compressor.Carry out executable operations step accurately according to judged result, ensure the safe operation of compressor.
Preferably, when system heats, (now outdoor heat exchanger makees vaporizer, indoor heat exchanger makees condenser), detect above temperature parameter and compare, as a. that satisfies condition " T1-Te≤x DEG C ", now illustrative system low pressure saturation temperature Te and outdoor environment temperature T1 ten points is close, the evaporation endothermic DeGrain of vaporizer; And when satisfying condition b. " Td-T2≤y DEG C ", now illustrative system high pressure saturation temperature Td and indoor environment temperature T2 ten points is close, and the condensation exothermal effect of condenser is also not obvious; And when satisfying condition c. " T3 >=z DEG C ", illustrate compressor exhaust temperature T3 too high (intakeport stifled after, there is no refrigerant or only have a small amount of refrigerant to enter compressor to dispel the heat to compressor electric motor, can cause shell top (exhaust) temperature of compressor very high); When above-mentioned 3 conditions meet simultaneously, now judge " compressor is serious dirty stifled ", x, y, z is here setting reduced temperature, and its value condition is: the span of x is between 0 ~ 5; The span of preferred x=3, y is between 0 ~ 5, is preferably y=3; The span of z is between 108 ~ 118, is preferably z=113.When if now only have ready conditions, b and/or c meets, be probably because the lack of refrigerant in air-conditioning system causes causing, can not its fault of accurate response occur concrete reason.After judging concrete fault occurrence reason, need to carry out corresponding control operation: namely close down compressor, and show trouble signal on the display apparatus and the signal that need process, i.e. preferably automatic-prompting " compressor air suction mouth is dirty stifled, please process " on interior machine manual operating device or remote computer.
Preferably, when cooling system, (now indoor heat exchanger makees vaporizer, outdoor heat exchanger makees condenser), detect above temperature parameter and compare, as a. that satisfies condition " T2-Te≤x DEG C ", now illustrative system low pressure saturation temperature Te and indoor environment temperature T2 ten points is close, the evaporation endothermic DeGrain of its vaporizer; And when satisfying condition b. " Td-T1≤y DEG C ", now illustrative system high pressure saturation temperature Td and outdoor environment temperature T1 ten points is close, and the condensation exothermal effect of condenser is also not obvious; And when satisfying condition c. " T3 >=z DEG C ", illustrate compressor exhaust temperature T3 too high (intakeport stifled after, there is no refrigerant or only have a small amount of refrigerant to enter compressor to dispel the heat to compressor electric motor, can cause shell top (exhaust) temperature of compressor very high); When above-mentioned 3 conditions meet simultaneously, now judge " compressor is serious dirty stifled ", x, y, z is here setting reduced temperature, and its value condition is: the span of x is between 0 ~ 5; The span of preferred x=3, y is between 0 ~ 5, is preferably y=3; The span of z is between 108 ~ 118, is preferably z=113.When if now only have ready conditions, b and/or c meets, be probably because the lack of refrigerant in air-conditioning system causes causing, can not its fault of accurate response occur concrete reason.After judging concrete fault occurrence reason, need to carry out corresponding control operation, namely close down compressor, and the signal showing trouble signal on the display apparatus and need process, automatic-prompting " compressor air suction mouth is dirty stifled, please process " on interior machine manual operating device or remote computer.
Those skilled in the art will readily understand, under the prerequisite of not conflicting, above-mentioned each advantageous manner freely can combine, superpose.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (13)
1. a compressor performance detection device, comprise compressor (1), outdoor heat exchanger (2), indoor heat exchanger (3), it is characterized in that: also comprise be arranged at compressor outlet outlet pipe temperature-sensitive bag (4), for detect outdoor environment temperature outdoor environment temperature-sensitive bag (5), for detecting the indoor environment temperature-sensitive bag (6) of indoor environment temperature, and for detecting first detection device of air-conditioning system low pressure saturation temperature Te and the second detection device for detecting air-conditioning system high pressure saturation temperature Td.
2. a kind of compressor performance detection device according to claim 1, it is characterized in that: described first detection device comprises the low pressure sensor (14) be arranged on described compressor (1) suction side pipeline, described second detection device comprises the high pressure sensor (15) be arranged on described compressor (1) exhaust side pipeline.
3. according to a kind of compressor performance detection device one of claim 1-2 Suo Shu, it is characterized in that: described indoor heat exchanger (3) is at least 1.
4. an air-conditioning system, it is characterized in that: comprise the compressor performance detection device any one of claim 1-3, it also comprises the electric expansion valve (7) be arranged between described indoor heat exchanger (3) and described outdoor heat exchanger (2) on connecting pipeline.
5. a kind of air-conditioning system according to claim 4, is characterized in that: described air-conditioning system comprises outdoor unit and indoor set (8).
6. a kind of air-conditioning system according to claim 5, is characterized in that: described outdoor unit comprises described compressor (1), described outdoor heat exchanger (2) and four-way valve (9).
7. a kind of air-conditioning system according to claim 5 or 6, is characterized in that: described indoor set (8) comprises described indoor heat exchanger (3) and electronic expansion valve of indoor unit (10).
8. according to a kind of air-conditioning system one of claim 4-7 Suo Shu, it is characterized in that: described air-conditioning system is heat pump unit or cooling machine set.
9. a compressor control method, is characterized in that: use the described compressor performance detection device of one of claim 1-3 to control compressor.
10. a kind of compressor control method according to claim 9, it is characterized in that: when compressor operating, according to outdoor environment temperature T1, indoor environment temperature T2 and system low-voltage saturation temperature Te, system high pressure saturation temperature Td, delivery temperature T3, judge whether compressor exists dirty stifled situation.
11. a kind of compressor control methods according to claim 10, is characterized in that: the result judged if above-mentioned is yes, starts warning immediately, and point out client to keep in repair.
12. a kind of compressor control methods according to claim 10 or 11, is characterized in that comprising step:
When system heats, detect above temperature parameter and compare: as " T1-Te≤x DEG C " and " Td-T2≤y DEG C " and " T3 >=z DEG C " three conditions meet simultaneously time, judge " compressor is serious dirty stifled ", now close down compressor, and the signal showing trouble signal on the display apparatus and need process, x, y, z is here setting reduced temperature.
13. a kind of compressor control methods according to claim 10 or 11, it is characterized in that: when cooling system, detect above temperature parameter and compare: as " T2-Te≤x DEG C " and " Td-T1≤y DEG C " and " T3 >=z DEG C " three conditions meet simultaneously time, judge " compressor is serious dirty stifled ", now close down compressor, and the signal showing trouble signal on the display apparatus and need process, x, y, z is here setting reduced temperature.
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