CN203719246U - Processing system for compressor oil return pipeline fault of air conditioning system - Google Patents
Processing system for compressor oil return pipeline fault of air conditioning system Download PDFInfo
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- CN203719246U CN203719246U CN201320854377.4U CN201320854377U CN203719246U CN 203719246 U CN203719246 U CN 203719246U CN 201320854377 U CN201320854377 U CN 201320854377U CN 203719246 U CN203719246 U CN 203719246U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 70
- 238000012545 processing Methods 0.000 title claims abstract description 27
- 239000010725 compressor oil Substances 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000009897 systematic effect Effects 0.000 claims description 38
- 238000005057 refrigeration Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000008676 import Effects 0.000 claims description 10
- 239000003921 oil Substances 0.000 abstract description 171
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides an air conditioning system's compressor returns processing system of oil pipe way trouble, including compressor and oil and gas separator, still including setting up the oil return temperature sensor who returns on the oil pipe way and be located between capillary and the oil and gas separator to and main control unit, main control unit reads the oil return temperature that oil return temperature sensor detected, and according the fault of oil pipe way is judged to the difference between the oil return temperature that detects and the system parameter. The problem that the compressor fails due to the fact that the fault of the oil return pipeline is unknown and a user cannot be reminded to check and maintain is solved; the oil return temperature sensor is arranged between the capillary tube and the oil-gas separator on the oil return pipeline, on one hand, a distance is arranged between the oil return temperature sensor and the oil-gas separator, so that the phenomenon that the oil return temperature detection value is higher due to heat transfer caused by lubricating oil with higher bottom of the oil-gas separator is avoided, on the other hand, the phenomenon that the detection value of the oil return temperature is influenced by the throttling action of the capillary tube is avoided, and the capillary tubes with different specifications.
Description
Technical field
The utility model relates to air-conditioning system technical field, particularly relates to the treatment system of the compressor return line fault of air-conditioning system.
Background technology
In the air-conditioning unit of prior art, compressor in running constantly lubricating oil wherein along with exhaust is discharged in cooling cycle system, if normally oil return of compressor will soon cause losing efficacy because of oil starvation running.In prior art, conventionally adopt return line that the lubricating oil in gs-oil separator is got back to compressor air suction mouth and carry out repairing, on return line, be conventionally designed with filter, capillary, magnetic valve etc., wherein capillary is the flow velocity (reducing flow) that reduces lubricating oil for reducing pressure by regulating flow, magnetic valve is the break-make in order to control return line, filter is to avoid capillary for impurity screening to stop up, but, in actual use, there will be the phenomenon that return line stops up or magnetic valve leaks, cause effectively realizing the control to compressor oil return.
Utility model content
For in prior art because return line fault is unknowable and cannot reminding user inspection and maintenance, further cause the problem of compressor failure, the utility model provides a kind of easy and accurate judgement to process the treatment system of the compressor return line fault of the air-conditioning system of the compressor return line fault of air-conditioning system.
For reaching technical purpose, the utility model embodiment adopts following technical scheme:
The utility model provides a kind for the treatment of system of compressor return line fault of air-conditioning system, comprises compressor and gs-oil separator, and one end of return line is connected with the oil return opening of gs-oil separator, and the other end is connected with the air entry of compressor;
The exhaust outlet of compressor is connected with the import of gs-oil separator;
Also comprise the returning-oil temperature sensor being arranged on return line and between capillary and gs-oil separator, for detection of returning-oil temperature;
And the master controller being connected with returning-oil temperature sensor electrical;
Described master controller reads and is arranged on the returning-oil temperature that the sensor of the returning-oil temperature on return line and between capillary and gs-oil separator detects, and judges the fault of return line according to the difference between described returning-oil temperature and the systematic parameter detecting.
As a kind of embodiment, described compressor is at least one;
The corresponding return line of each compressor;
Each described return line comprises filter, capillary and the magnetic valve of order series connection;
Between described capillary and described filter, returning-oil temperature sensor is set.
As a kind of embodiment, on the import of described gs-oil separator or export pipeline, be provided with the pressure sensor for detection of system high pressure;
The outdoor unit heat exchanger side of air-conditioning system is provided with the environment temperature sensor for detection of environment temperature being electrically connected with master controller.
As a kind of embodiment, described master controller comprises that the first judgement processing unit and second judges processing unit, wherein:
Described first judges processing unit, in the time that compressor start moves, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the first preset value; In the time that the difference of described returning-oil temperature and systematic parameter is less than described the first preset value, show that plugging fault appears in compressor return line; Otherwise, control air-conditioning system and continue operation;
Described second judges processing unit, while operation, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the second preset value for not starting when compressor; In the time that the difference of described returning-oil temperature and systematic parameter is greater than described the second preset value, show that oil leakage fault appears in compressor return line; Otherwise, control air-conditioning system and continue operation.
As a kind of embodiment, also comprise stoppage protection module;
Described stoppage protection module, in the time judging that compressor return line breaks down, controls air-conditioning system stoppage protection and/or report fault.
As a kind of embodiment, also comprise that judgement starts processing module;
Described judgement starts processing module, for judging whether described compressor starts operation; If start operation, enter the first judgement processing unit; If do not start operation, enter the second judgement processing unit.
As a kind of embodiment, described compressor operating mode is refrigeration mode or heating mode, wherein:
In the time that compressor is worked under refrigeration mode, described systematic parameter is system high pressure;
In the time that compressor is worked under heating mode, described systematic parameter is environment temperature.
As a kind of embodiment, described master controller also comprises returning-oil temperature sensor fault module;
Described returning-oil temperature sensor fault module; for in the time that air-conditioning system is shut down; obtain the returning-oil temperature of returning-oil temperature sensor detection and the environment temperature at the air-conditioning system place that environment temperature sensor detects; and judge whether returning-oil temperature falls into ambient temperature range; whether fall into the judged result of ambient temperature range according to returning-oil temperature, draw whether fault of returning-oil temperature sensor.
The beneficial effects of the utility model:
The treatment system of the compressor return line fault of air-conditioning system of the present utility model, its can be easy and judge accurately air-conditioning system compressor return line fault and process; Adopt the cooling cycle system of this system, solved because return line fault is unknowable and cannot reminding user inspection and maintenance, further cause the problem of compressor failure; Returning-oil temperature sensor is set on return line, and to return line, whether fault is analyzed and judges, and the timely inspection and maintenance of reminding user, avoids burning problem because of the compressor that return line fault causes; Returning-oil temperature sensor setting at return line between capillary and gs-oil separator, there is a segment distance apart from gs-oil separator on the one hand, the heat transmission of avoiding the higher lubricating oil in gs-oil separator bottom to cause causes returning-oil temperature detected value higher, avoid on the other hand the detected value of returning-oil temperature to be subject to the impact of capillary-compensated effect, and can the compatible capillary that adopts different size.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the treatment system of the compressor return line fault of air-conditioning system of the present utility model;
Fig. 2 is the composition schematic diagram of an embodiment of the treatment system of the compressor return line fault of air-conditioning system of the present utility model;
Fig. 3 is the workflow schematic diagram of an embodiment of the treatment system of the compressor return line fault of air-conditioning system of the present utility model;
Fig. 4 is the workflow schematic diagram of another embodiment of the treatment system of the compressor return line fault of air-conditioning system of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, the treatment system of the compressor return line fault below in conjunction with drawings and Examples to the utility model air-conditioning system is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the utility model provides a kind for the treatment of system of compressor return line fault of air-conditioning system, comprises compressor and gs-oil separator 30,
One end of return line is connected with the oil return opening of gs-oil separator, and the other end is connected with the air entry of compressor;
The exhaust outlet of compressor is connected with the import of gs-oil separator;
Also comprise the returning-oil temperature sensor being arranged on return line and between capillary and gs-oil separator, for detection of returning-oil temperature;
And the master controller 100 being connected with returning-oil temperature sensor electrical;
Master controller 100, read and be arranged on the returning-oil temperature T that the sensor of the returning-oil temperature on return line and between capillary and gs-oil separator detects, and judge the fault of return line according to the difference between described returning-oil temperature T and the systematic parameter detecting.
Described master controller 100 comprises reading unit 110 and detecting unit 130, wherein reading unit 110 is arranged on for reading the returning-oil temperature T that the sensor of the returning-oil temperature on return line and between capillary and gs-oil separator detects, described detecting unit 130 judges the fault of return line for the difference between the returning-oil temperature T and the systematic parameter that detect described in basis; This system can solve because return line fault is unknowable and cannot reminding user inspection and maintenance, further causes the problem of compressor failure; Returning-oil temperature sensor is located on return line between capillary and gs-oil separator, there is a segment distance apart from gs-oil separator 30 on the one hand, the heat transmission of avoiding the higher lubricating oil in gs-oil separator bottom to cause causes returning-oil temperature detected value higher, avoid on the other hand the detected value of returning-oil temperature to be subject to the impact of capillary-compensated effect, and treatment system that can the compatible compressor return line fault that adopts different size air-conditioning system capillaceous.
As a kind of embodiment, as shown in Figure 2, described compressor is at least one;
The corresponding return line of each compressor;
Each described return line comprises filter, capillary and the magnetic valve of order series connection;
Between described capillary and described filter, returning-oil temperature sensor is set.
As a kind of embodiment, on the import of described gs-oil separator or export pipeline, be provided with the pressure sensor 60 for detection of system high pressure TH;
The outdoor unit heat exchanger side of air-conditioning system is provided with the environment temperature sensor for detection of environment temperature TO being electrically connected with master controller.
As a kind of embodiment, described master controller 100 comprises that the first judgement processing unit 131 and second judges processing unit 132, wherein:
Described first judges processing unit 131, in the time that compressor start moves, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the first preset value; In the time that the difference of described returning-oil temperature and systematic parameter is less than described the first preset value, show that (jam) fault appears stopping up in compressor return line; Otherwise, control air-conditioning system and continue operation;
Described second judges processing unit 132, while operation, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the second preset value for not starting when compressor; In the time that the difference of described returning-oil temperature and systematic parameter is greater than described the second preset value, show that leakage of oil (leakage) fault appears in compressor return line; Otherwise, control air-conditioning system and continue operation.
As a kind of embodiment, master controller 100 also comprises stoppage protection module 140;
Described stoppage protection module 140, in the time judging that compressor return line breaks down, controls air-conditioning system stoppage protection and/or report fault.
As a kind of embodiment, master controller 100 also comprises that judgement starts processing module 120;
Described judgement starts operation module 120, for judging whether compressor starts operation;
If start operation, enter the first judgement processing unit;
If do not start operation, enter the second judgement processing unit.
As a kind of embodiment, described compressor operating mode is refrigeration mode or heating mode, wherein:
In the time that compressor is worked under refrigeration mode, described systematic parameter is system high pressure TH;
In the time that compressor is worked under heating mode, described systematic parameter is environment temperature TO.
Shown in Figure 2, be the schematic diagram of an embodiment of compressor oil-return pipeline system of the present utility model, the technical program is applicable to be provided with the compressor oil-return pipeline system of multiple compressors parallel connection.Compressor oil-return pipeline system in the present embodiment is provided with two compressors in parallel, for further detailed explanation the technical program, does not limit the utility model.Compressor oil-return pipeline system of the present utility model can comprise the compressor of three compressors in parallel, four compressors in parallel, multiple parallel connections, only explains with two compressors in parallel herein, is not described one by one.
The double-compressor parallel oil-return pipeline system of the present embodiment, is carrying out refrigerating operaton, comprising: the first compressor 10, has air entry and exhaust outlet; The second compressor 20, has air entry and exhaust outlet; Gs-oil separator 30, has import, outlet and oil return opening; The first return line 40, has the first filter 41, the first capillary 43, the first magnetic valve 44; The second return line 50, has the second filter 51, the second capillary 53, the second magnetic valve 54; After the exhaust outlet parallel connection of the exhaust outlet of the first compressor 10 and the second compressor 20, be connected with the import of gs-oil separator 30; After the first end parallel connection of the first end of the first return line 40 and the second return line 50, be connected with the oil return opening of gs-oil separator; The second end of the first return line 40 is connected with the air entry of the first compressor 10; The second end of the second return line 50 is connected with the air entry of the second compressor 20.
On the first return line 40, between the first capillary 43 and the first filter 41, be provided with the first returning-oil temperature sensor 42, for detection of the first returning-oil temperature T1; On the second return line 50, between the second capillary 53 and the second filter 51, be provided with the second returning-oil temperature sensor 52, for detection of the second returning-oil temperature T2; On the import or export pipeline of gs-oil separator, be provided with pressure sensor 60, for detection of system high pressure TH.
Suppose that the first compressor 10 in the present embodiment starts operation, the second compressor 20 does not start operation.Master controller 100 judges that the first compressor 10 starts operation, whether the first return line 40 is stopped up and judged, master controller 100 reads the first returning-oil temperature T1 that the first returning-oil temperature sensor 42 detects, difference and the first preset value THj comparison of the system high pressure TH that it and pressure sensor 60 are detected, if the difference of the first returning-oil temperature T1 and system high pressure TH is less than the first pre-preset value THj, be judged as the first return line 40 and occur plugging fault, system report fault or stoppage protection, and then reminding user carries out inspection and maintenance to the first return line 40 of air-conditioner, otherwise system is normally carried out, master controller 100 judges when the second compressor 20 does not start operation, to the second return line 50, whether leakage of oil judges, master controller 100 reads the second returning-oil temperature T2 that the second returning-oil temperature sensor 52 detects, difference and the second preset value THl comparison of the system high pressure TH that it and pressure sensor 60 are detected, if the difference of the second returning-oil temperature T2 and system high pressure TH is greater than the second pre-preset value THl, be judged as the second return line 50 and occur oil leakage fault, system report fault or stoppage protection, and then reminding user carries out inspection and maintenance to the second return line 50 of air-conditioner, otherwise system is normally carried out.
As a kind of embodiment, shown in Figure 1, master controller 100 also comprises returning-oil temperature sensor fault module 150;
Described returning-oil temperature sensor fault module 150, for obtaining the returning-oil temperature T of returning-oil temperature sensor detection and the environment temperature TO at the air-conditioning system place that environment temperature sensor detects, and judges whether returning-oil temperature T falls into environment temperature TO scope,
Whether fall into the judged result of environment temperature TO scope according to returning-oil temperature T, draw whether fault of returning-oil temperature sensor.
Shown in Fig. 3, Fig. 4, the utility model also provides a kind for the treatment of system course of work of compressor return line fault of air-conditioning system, when air-conditioning system is during in running status, comprises the following steps:
Returning-oil temperature sensor is set between capillary and gs-oil separator, for detection of returning-oil temperature at compressor return line;
Judge the fault of return line according to the difference between described returning-oil temperature and the systematic parameter detecting.
This system easy and judge accurately air-conditioning system compressor return line fault and process, solved because return line fault is unknowable and cannot reminding user inspection and maintenance, further cause the problem of compressor failure; Returning-oil temperature sensor is set on return line, and to return line, whether fault is analyzed and judges, and the timely inspection and maintenance of reminding user, avoids burning problem because of the compressor that return line fault causes; Returning-oil temperature sensor setting at return line between capillary and gs-oil separator, there is a segment distance apart from gs-oil separator 30 on the one hand, the heat transmission of avoiding the higher lubricating oil in gs-oil separator bottom to cause causes returning-oil temperature detected value higher, avoid on the other hand the detected value of returning-oil temperature to be subject to the impact of capillary-compensated effect, and treatment system that can the compatible compressor return line fault that adopts different size air-conditioning system capillaceous.
As a kind of embodiment, the difference between returning-oil temperature and the systematic parameter detecting described in described basis judges the fault of return line, comprises the steps:
In the time that compressor start moves, judge whether the difference of returning-oil temperature and systematic parameter falls into the scope of the first preset value;
In the time that the difference of described returning-oil temperature and systematic parameter is less than described the first preset value, show that plugging fault appears in compressor return line;
Otherwise air-conditioning system continues operation.
As a kind of embodiment, the difference between returning-oil temperature and the systematic parameter detecting described in described basis judges the fault of return line, also comprises the steps:
In the time that compressor does not start operation, judge whether the difference of returning-oil temperature and systematic parameter falls into the scope of the second preset value.
In the time that the difference of described returning-oil temperature and systematic parameter is greater than described the second preset value, show that oil leakage fault appears in compressor return line
Otherwise air-conditioning system continues operation.
The return line fault of this system comprises return line plugging fault and return line oil leakage fault, in the time judging that the difference of returning-oil temperature and systematic parameter is less than the first preset value, show that plugging fault appears in compressor return line; In the time judging that the difference of returning-oil temperature and systematic parameter is greater than described the second preset value, show that oil leakage fault appears in compressor return line.Wherein the criterion of return line plugging fault is the size between difference and first preset value of returning-oil temperature and systematic parameter; The criterion of return line oil leakage fault is the size between difference and second preset value of returning-oil temperature and systematic parameter.
As a kind of embodiment, also comprise the steps:
In the time judging that compressor return line breaks down, stoppage protection and/or report fault.
In the time occurring shutting down and/or reporting fault; what user drew according to judgement is plugging fault or is oil leakage fault; if plugging fault; the magnetic valve of compressor return line is carried out to maintenance and inspection; if oil leakage fault; the capillary of compressor return line is carried out to maintenance and inspection, until again start shooting after determining no problem.
As a kind of embodiment, the difference between returning-oil temperature and the systematic parameter detecting described in described basis also comprises the steps: before judging the fault of return line
Judge whether compressor starts operation;
If start operation, judge whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the first preset value;
If do not start operation, judge whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the second preset value.
Master controller judges the running status of each compressor, when judging that compressor is in the time starting running status, carries out the whether judgement processing of plugging fault of compressor return line of air-conditioning system; When judging that compressor is not in starting when running status, carry out the whether judgement processing of oil leakage fault of compressor return line of air-conditioning system.
As a kind of embodiment, described compressor operating mode comprises refrigeration mode, heating mode;
In the time that compressor is worked under refrigeration mode, described systematic parameter is system high pressure;
In the time that compressor is worked under heating mode, described systematic parameter is environment temperature.
The treatment system of the compressor return line fault of air-conditioning system of the present utility model is divided into the working method of refrigeration mode and heating mode, the course of work of the treatment system of the compressor return line fault of the air-conditioning system under treatment system and the heating mode of the compressor return line fault below in conjunction with Fig. 3, Fig. 4 to the air-conditioning system under refrigeration mode of the present utility model is described in detail, it should be noted that, Fig. 3, Fig. 4 are only a kind of embodiments of the utility model refrigeration mode and heating mode, do not limit the utility model.
Shown in Figure 3, the workflow schematic diagram of the treatment system of the compressor return line fault of the air-conditioning system of working under refrigeration mode for compressor of the present utility model, S100, the workflow of the treatment system of the compressor return line fault of the air-conditioning system that compressor is worked under refrigeration mode, comprises the following steps:
S110, judges whether compressor starts operation;
If start operation, enter step S121;
If do not start operation, enter step S122;
S121, judges whether the difference of described returning-oil temperature T and system high pressure TH falls into the scope of the first preset value THj;
S122, judges whether the difference of described returning-oil temperature T and system high pressure TH falls into the scope of the second preset value THl;
S131, when the difference that judges described returning-oil temperature T and system high pressure TH is less than the first preset value THj, show that plugging fault appears in compressor return line;
Otherwise air-conditioning system continues operation;
S132, when the difference that judges described returning-oil temperature T and system high pressure TH is greater than described the second preset value THl, show that oil leakage fault appears in compressor return line;
Otherwise air-conditioning system continues operation;
S140, in the time judging that oil leakage fault appears in compressor return line that the compressor return line of air-conditioning system occurs plugging fault or judges air-conditioning system, stoppage protection and/or report fault.
Shown in Figure 4, the workflow schematic diagram of the treatment system of the compressor return line fault of the air-conditioning system of working under heating mode for compressor of the present utility model, S200, the workflow of the treatment system of the compressor return line fault of the air-conditioning system that compressor is worked under heating mode, comprises the following steps:
S210, judges whether compressor starts operation;
If start operation, enter step S221;
If do not start operation, enter step S222;
S221, judges whether the difference of described returning-oil temperature T and environment temperature TO falls into the scope of the first preset value TOj;
S222, judges whether the difference of described returning-oil temperature T and environment temperature TO falls into the scope of the second preset value TOl;
S231, when the difference that judges described returning-oil temperature T and environment temperature TO is less than the first preset value TOj, show that plugging fault appears in compressor return line;
Otherwise air-conditioning system continues operation;
S232, when the difference that judges described returning-oil temperature T and environment temperature TO is greater than described the second preset value TOl, show that oil leakage fault appears in compressor return line;
Otherwise air-conditioning system continues operation;
S240, in the time judging that oil leakage fault appears in compressor return line that the compressor return line of air-conditioning system occurs plugging fault or judges air-conditioning system, stoppage protection and/or report fault.
In existing technology, compare by the first temperature and the ambient temperature range that are arranged on the temperature sensor detection of return line between capillary and compressor, judge whether return line stops up, because the first temperature is subject to the impact of capillary specification larger, especially, under cryogenic refrigeration pattern, simply, with the first temperature and ambient temperature range contrast, especially easily there is false judgment.The utility model by returning-oil temperature sensor setting between capillary and gs-oil separator, before capillary-compensated.Under refrigeration (heating) pattern, with system high pressure (environment temperature) contrast, judge whether capillary stops up, or whether magnetic valve damages and cannot closure cause leakage, is not subject to the impact of refrigerant factor, it is more accurate to judge.
System is in running, lubricating oil in compressor is constantly taken away by the exhaust of compressor, in gs-oil separator, be filtered out, accumulate in the bottom of gs-oil separator, then sucked by the air entry of compressor by return line, this is the mode of a simple lubrication oil circulation in air-conditioner, is also the object that gs-oil separator and return line are set in system.
In there is plugging fault in return line, report return line plugging fault or stoppage protection, reminding user carries out inspection and maintenance to air-conditioner, avoids compressor to lose efficacy because oil starvation turns round; When return line has Lou fault, report return line oil leakage fault or stoppage protection, reminding user carries out inspection and maintenance to air-conditioner, avoids compressor to lose efficacy because of oil starvation running.In order to judge more accurately the state of return line, the technical solution of the utility model is divided into refrigeration mode and heating mode, and the compressor return line that can overcome like this air-conditioning system is subject to the impact of refrigerant factor.Wherein, the first preset value THj, the second preset value THl under refrigeration mode are the correlations of system high pressure TH, and scope is [TH, TH+20]; The first preset value TOj, the second preset value TOl under heating mode are the correlations of environment temperature TO, and scope is [TO+10, TO+40].
As a kind of embodiment, on the import of gs-oil separator 30 or export pipeline, be provided with pressure sensor 60, for detection of system high pressure.
As a kind of embodiment, comprise the following steps:
Be provided for the environment temperature sensor of testing environment temperature in the outdoor unit heat exchanger side of air-conditioning system;
In the time that air-conditioning system is shut down; obtain the returning-oil temperature of returning-oil temperature sensor detection and the environment temperature at the air-conditioning system place that environment temperature sensor detects; and judge whether returning-oil temperature falls into ambient temperature range; whether fall into the judged result of ambient temperature range according to returning-oil temperature, draw whether fault of returning-oil temperature sensor.
In system-down; returning-oil temperature sensor continuous detecting returning-oil temperature; master controller 100 obtains the environment temperature TO of returning-oil temperature T and environment temperature sensor detection; returning-oil temperature T and environment temperature TO are compared, judge whether returning-oil temperature T falls within the scope of environment temperature TO, if not within the scope of environment temperature TO; be judged as returning-oil temperature sensor fault; report returning-oil temperature sensor fault, reminding user carries out maintenance and inspection to returning-oil temperature sensor, otherwise does not report fault.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. a treatment system for the compressor return line fault of air-conditioning system, is characterized in that, comprises compressor and gs-oil separator, and one end of return line is connected with the oil return opening of gs-oil separator, and the other end is connected with the air entry of compressor;
The exhaust outlet of compressor is connected with the import of gs-oil separator;
Also comprise the returning-oil temperature sensor being arranged on return line and between capillary and gs-oil separator, for detection of returning-oil temperature;
And the master controller being connected with returning-oil temperature sensor electrical;
Described master controller reads and is arranged on the returning-oil temperature that the sensor of the returning-oil temperature on return line and between capillary and gs-oil separator detects, and judges the fault of return line according to the difference between described returning-oil temperature and the systematic parameter detecting.
2. the treatment system of the compressor return line fault of air-conditioning system according to claim 1, is characterized in that, described compressor is at least one;
The corresponding return line of each compressor;
Each described return line comprises filter, capillary and the magnetic valve of order series connection;
Between described capillary and described filter, returning-oil temperature sensor is set.
3. the treatment system of the compressor return line fault of air-conditioning system according to claim 1 and 2, is characterized in that, is provided with the pressure sensor for detection of system high pressure on the import of described gs-oil separator or export pipeline;
The outdoor unit heat exchanger side of air-conditioning system is provided with the environment temperature sensor for detection of environment temperature being electrically connected with master controller.
4. the treatment system of the compressor return line fault of air-conditioning system according to claim 3, is characterized in that, described master controller comprises that the first judgement processing unit and second judges processing unit, wherein:
Described first judges processing unit, in the time that compressor start moves, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the first preset value; In the time that the difference of described returning-oil temperature and systematic parameter is less than described the first preset value, show that plugging fault appears in compressor return line; Otherwise, control air-conditioning system and continue operation;
Described second judges processing unit, while operation, judges whether the difference of described returning-oil temperature and systematic parameter falls into the scope of the second preset value for not starting when compressor; In the time that the difference of described returning-oil temperature and systematic parameter is greater than described the second preset value, show that oil leakage fault appears in compressor return line; Otherwise, control air-conditioning system and continue operation.
5. the treatment system of the compressor return line fault of air-conditioning system according to claim 4, is characterized in that, also comprises stoppage protection module;
Described stoppage protection module, in the time judging that compressor return line breaks down, controls air-conditioning system stoppage protection and/or report fault.
6. the treatment system of the compressor return line fault of air-conditioning system according to claim 4, is characterized in that, also comprises that judgement starts processing module;
Described judgement starts processing module, for judging whether described compressor starts operation; If start operation, enter the first judgement processing unit; If do not start operation, enter the second judgement processing unit.
7. the treatment system of the compressor return line fault of air-conditioning system according to claim 3, is characterized in that, described compressor operating mode is refrigeration mode or heating mode, wherein:
In the time that compressor is worked under refrigeration mode, described systematic parameter is system high pressure;
In the time that compressor is worked under heating mode, described systematic parameter is environment temperature.
8. the treatment system of the compressor return line fault of air-conditioning system according to claim 7, is characterized in that, described master controller also comprises returning-oil temperature sensor fault module;
Described returning-oil temperature sensor fault module; for in the time that air-conditioning system is shut down; obtain the returning-oil temperature of returning-oil temperature sensor detection and the environment temperature at the air-conditioning system place that environment temperature sensor detects; and judge whether returning-oil temperature falls into ambient temperature range; whether fall into the judged result of ambient temperature range according to returning-oil temperature, draw whether fault of returning-oil temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320854377.4U CN203719246U (en) | 2013-12-23 | 2013-12-23 | Processing system for compressor oil return pipeline fault of air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN105954052A (en) * | 2016-05-27 | 2016-09-21 | 珠海格力电器股份有限公司 | Capillary tube blockage detection system and method |
| CN106642846A (en) * | 2017-01-10 | 2017-05-10 | 广东美的制冷设备有限公司 | Filter assembly, control method, control device and air-conditioner |
| CN108443158A (en) * | 2018-04-26 | 2018-08-24 | 贺吉军 | Air-conditioning system and helical-lobe compressor and its lubricating oil detection device |
| CN108870644A (en) * | 2018-05-21 | 2018-11-23 | 广东美的暖通设备有限公司 | A kind of air-conditioning system plugged filter detection method and detection device |
| CN111623473A (en) * | 2020-06-08 | 2020-09-04 | 珠海格力电器股份有限公司 | Adaptive debugging method of air conditioner |
| CN113899093A (en) * | 2021-10-20 | 2022-01-07 | 中国船舶重工集团公司第七0四研究所 | Identification and prejudgment method for oil return fault of screw type refrigeration compressor |
| CN114923273A (en) * | 2022-05-06 | 2022-08-19 | 青岛海信日立空调系统有限公司 | Air conditioning system and control method thereof |
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| CN105954052A (en) * | 2016-05-27 | 2016-09-21 | 珠海格力电器股份有限公司 | Capillary tube blockage detection system and method |
| CN105954052B (en) * | 2016-05-27 | 2018-04-20 | 珠海格力电器股份有限公司 | Capillary tube blockage detection system and method |
| CN106642846A (en) * | 2017-01-10 | 2017-05-10 | 广东美的制冷设备有限公司 | Filter assembly, control method, control device and air-conditioner |
| CN106642846B (en) * | 2017-01-10 | 2019-03-29 | 广东美的制冷设备有限公司 | Filter assemblies, control method, control device and air conditioner |
| CN108443158A (en) * | 2018-04-26 | 2018-08-24 | 贺吉军 | Air-conditioning system and helical-lobe compressor and its lubricating oil detection device |
| CN108870644A (en) * | 2018-05-21 | 2018-11-23 | 广东美的暖通设备有限公司 | A kind of air-conditioning system plugged filter detection method and detection device |
| CN108870644B (en) * | 2018-05-21 | 2020-10-13 | 广东美的暖通设备有限公司 | Air conditioning system filter blockage detection method and detection device |
| CN111623473A (en) * | 2020-06-08 | 2020-09-04 | 珠海格力电器股份有限公司 | Adaptive debugging method of air conditioner |
| CN113899093A (en) * | 2021-10-20 | 2022-01-07 | 中国船舶重工集团公司第七0四研究所 | Identification and prejudgment method for oil return fault of screw type refrigeration compressor |
| CN114923273A (en) * | 2022-05-06 | 2022-08-19 | 青岛海信日立空调系统有限公司 | Air conditioning system and control method thereof |
| CN114923273B (en) * | 2022-05-06 | 2023-11-07 | 青岛海信日立空调系统有限公司 | Air conditioning system and control method thereof |
| CN118423908A (en) * | 2024-07-02 | 2024-08-02 | 三峡电能有限公司 | Wide-temperature-range air source heat pump compressor oil return abnormality judgment control system and method |
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