CN103234258B - Fault judging handling method for central air conditioner water loop system - Google Patents
Fault judging handling method for central air conditioner water loop system Download PDFInfo
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- CN103234258B CN103234258B CN201310152040.3A CN201310152040A CN103234258B CN 103234258 B CN103234258 B CN 103234258B CN 201310152040 A CN201310152040 A CN 201310152040A CN 103234258 B CN103234258 B CN 103234258B
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- target stream
- stream switch
- side target
- closed
- water route
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title abstract description 5
- 238000001704 evaporation Methods 0.000 claims description 40
- 230000008020 evaporation Effects 0.000 claims description 40
- 230000005494 condensation Effects 0.000 claims description 38
- 238000009833 condensation Methods 0.000 claims description 38
- 238000004378 air conditioning Methods 0.000 claims description 26
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 238000003672 processing method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a fault judging handling method for a central air conditioner water loop system. By detecting whether a target flow switch is closed constantly, whether the target flow switch itself fails due to wiring errors, target piece locking and the like is detected. Before a compressor of a central air conditioner is started, a current water loop state can be confirmed through linkage of a water pump and the target flow switch, and corresponding warning can be given once errors are found out. By means of the method, whether the target flow switch fails and whether the current water loop state is in consistency with a set mode can be judged, and corresponding handling can be conducted on the faults.
Description
Technical field
The present invention relates to air-conditioning technical field, is specifically a kind of central air-conditioning waterway system failure determination processing method.
Background technology
The water circuit system of central air-conditioning as shown in Figure 1, when cooling in summer, A2, A4, A5, A7 valve is opened, and A1, A3, A6, A8 valve closes, the water at low temperature now flowed out from evaporimeter is pressurizeed by using side water pump, enter indoor fan and carry out heat exchange, take away the heat in room, finally get back to evaporimeter, heat now in room passes to the water in condenser by cold-producing medium, heat source side water pump, by the water pressurization after intensification, enters underground pipe and carries out heat exchange, send condenser back to again after reducing temperature; When winter heating, A1, A3, A6, A8 valve is opened, and A2, A4, A5, A7 valve closes, and the water at low temperature now flowed out from evaporimeter is pressurizeed by heat source side water pump, enter underground pipe and carry out heat exchange, take away the heat in underground pipe, finally get back to evaporimeter, the heat now in underground pipe passes to the water in condenser by cold-producing medium, use side water pump by the water pressurization after intensification, enter indoor fan and carry out heat exchange, provide heat in room, finally get back to condenser.
The water lines of evaporimeter is provided with evaporation side target stream switch, the water lines of condenser is provided with condensation side target stream switch, evaporation side target stream switch, condensation side target stream switch, use the wiring of side water pump and heat source side water pump as shown in Figure 2, the signal output part of evaporation side target stream switch and condensation side target stream switch is electrically connected with the input of aircondition controller, the output of aircondition controller controls respectively by contactor the start and stop using side water pump and heat source side water pump, whether people use side water pump and evaporation side water pump normally to start when detecting start by evaporation side target stream switch and condensation side target stream switch at present, namely corresponding target stream switch whether normally closed (original state of target stream switch is off) is detected after start, but target stream switch self wiring error, the target mortice lock of target stream switch is waited indefinitely and all can be caused target stream switch failure, people are made cannot accurately to judge to use side water pump and evaporation side water pump whether normally to start, and when changing according to the season, central air-conditioning needs waterway switching state (summer water route/winter water route), if during compressor start water route state and set model (cooling in summer pattern/winter heating's pattern) inconsistent, Central air-conditioning unit will be caused normally to run.
Summary of the invention
Technical problem to be solved by this invention is, provides and can judge whether target stream switch lost efficacy, whether current water route state is consistent with set model, and can carry out the central air-conditioning waterway system failure determination processing method of corresponding process to fault.
For solving the problems of the technologies described above, central air-conditioning waterway system failure determination processing method provided by the invention, it comprises the following steps:
(1), central air-conditioning powers in 5 seconds, detect evaporation side target stream switch and condensation side target stream switch respectively, if wherein any one continues closed, then judge target stream switch failure, send the warning of target stream switch failure, if both remain open state, then perform step (2);
(2) if now set model is winter heating's pattern, then perform step (3), if now set model is cooling in summer pattern, then perform step (4);
(3), heat source side water pump is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in winter, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in summer, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state, then judge that heat source side current are abnormal, start heat source side current cutting protection, close heat source side water pump, and inquiry now uses side whether to judge that current are abnormal, in this way, then terminates, if not, then perform step (4);
(4) use side water pump, is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in summer, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in winter, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state; then judge to use side current abnormal; start and use side current cutting protection; close and use side water pump; and inquire about now heat source side and whether judged that current are abnormal, in this way, then terminate; if not, then perform step (3).
As preferably, continue closed referring in described step (1) and continue closed 1 ~ 3 second.
As preferably, described closed the referring to for 1 ~ 3 second that continue continues closed 3 seconds.
As preferably, continue closed referring in described step (3) and step (4) and continue closed 2 ~ 10 seconds.
As preferably, described closed the referring to for 2 ~ 10 seconds that continue continues closed 3 seconds.
After adopting above method, the present invention compared with prior art, has following advantage:
The present invention is after central air-conditioning powers on, whether continue closed by detecting target stream switch, target stream switch self can be detected whether because wiring error, target mortice lock are waited indefinitely reason and losing efficacy, if it is determined that target stream switch failure, the warning of target stream switch failure can be sent, make people accurately can judge to use side water pump and heat source side water pump whether normally to start by target stream switch; And the present invention is before the compressor start of central air-conditioning, confirm current water route state by the interlock of water pump and target stream switch, if it is determined that water route state and set model inconsistent, then can send water lines false alarm; If it is determined that target stream switch failure, then can send the warning of target stream switch failure; If it is determined that current are abnormal, then also can carry out corresponding current cutting protection, close corresponding water pump; So operating personnel can carry out corresponding troubleshooting according to warning, and controller is once find that current can also perform corresponding safeguard measure extremely, the operation of Central air-conditioning unit during effective guarantee compressor start.
Accompanying drawing explanation
Fig. 1 is the structural representation of central air-conditioning waterway system;
The circuit theory diagrams of Fig. 2 central air-conditioning waterway system;
Fig. 3 is flow chart of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
As shown in Figure 3, central air-conditioning waterway system failure determination processing method of the present invention, it is characterized in that, it comprises the following steps:
(1), central air-conditioning powers in 5 seconds, detect evaporation side target stream switch and condensation side target stream switch respectively, if wherein any one continues closed, then judge target stream switch failure, send the warning of target stream switch failure, if both remain open state, then perform step (2);
(2) if now set model is winter heating's pattern, then perform step (3), if now set model is cooling in summer pattern, then perform step (4), winter heating's pattern is corresponding with water route in winter, summer, heating mode was corresponding with water route in summer, winter water route and summer water route switched by transfer valve;
(3), heat source side water pump (now the compressor of central air-conditioning is not activated) is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in winter, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in summer, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state, then judge that heat source side current are abnormal, start heat source side current cutting protection, close heat source side water pump, and inquiry now uses side whether to judge that current are abnormal, in this way, then terminates, if not, then perform step (4);
(4), use side water pump (now the compressor of central air-conditioning is not activated) is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in summer, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in winter, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state; then judge to use side current abnormal; start and use side current cutting protection; close and use side water pump; and inquire about now heat source side and whether judged that current are abnormal, in this way, then terminate; if not, then perform step (3).
Continue closed referring in described step (1) and continue closed 3 seconds.
Continue closed referring in described step (3) and step (4) and continue closed 3 seconds.
As shown in Figure 2, the signal output part of evaporation side target stream switch and condensation side target stream switch is all electrically connected with the signal input part of the controller of central air-conditioning, controller receives the status information of the first target stream switch and the second target stream switch, the signal output part of controller controls respectively by contactor KM1 and KM2 the start and stop using side water pump and heat source side water pump, the powering on of central air-conditioning, start etc. control by controller, controller is connected with display, and display can step display (1), step (3), step be warned in (4) accordingly.
Claims (5)
1. a central air-conditioning waterway system failure determination processing method, it is characterized in that, it comprises the following steps:
(1), central air-conditioning powers in 5 seconds, detect evaporation side target stream switch and condensation side target stream switch respectively, if wherein any one continues closed, then judge target stream switch failure, send the warning of target stream switch failure, if both remain open state, then perform step (2);
(2) if now set model is winter heating's pattern, then perform step (3), if now set model is cooling in summer pattern, then perform step (4);
(3), heat source side water pump is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in winter, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in summer, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state, then judge that heat source side current are abnormal, start heat source side current cutting protection, close heat source side water pump, and inquiry now uses side whether to judge that current are abnormal, in this way, then terminates, if not, then perform step (4);
(4) use side water pump, is opened, detect evaporation side target stream switch and condensation side target stream switch respectively, if evaporation side target stream switch continues closed, condensation side target stream switch remains open state, then judge that water route state is as water route in summer, water route state is consistent with set model; If evaporation side target stream switch remains open state, condensation side target stream switch continues closed, then judge that water route state is as water route in winter, water route state and set model inconsistent, send water lines false alarm; If evaporation side target stream switch and condensation side target stream switch all continue closed, then judge target stream switch failure, send the warning of target stream switch failure; If evaporation side target stream switch and condensation side target stream switch all remain open state; then judge to use side current abnormal; start and use side current cutting protection; close and use side water pump; and inquire about now heat source side and whether judged that current are abnormal, in this way, then terminate; if not, then perform step (3).
2. central air-conditioning waterway system failure determination processing method according to claim 1, is characterized in that: continue closed referring in described step (1) and continue closed 1 ~ 3 second.
3. central air-conditioning waterway system failure determination processing method according to claim 2, is characterized in that: described closed the referring to for 1 ~ 3 second that continue continues closed 3 seconds.
4. central air-conditioning waterway system failure determination processing method according to claim 1, is characterized in that: continue closed referring in described step (3) and step (4) and continue closed 2 ~ 10 seconds.
5. central air-conditioning waterway system failure determination processing method according to claim 4, is characterized in that: described closed the referring to for 2 ~ 10 seconds that continue continues closed 3 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310152040.3A CN103234258B (en) | 2013-04-27 | 2013-04-27 | Fault judging handling method for central air conditioner water loop system |
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| CN201310152040.3A CN103234258B (en) | 2013-04-27 | 2013-04-27 | Fault judging handling method for central air conditioner water loop system |
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| CN103234258A CN103234258A (en) | 2013-08-07 |
| CN103234258B true CN103234258B (en) | 2015-04-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807980B (en) * | 2014-03-04 | 2016-03-30 | 施晓亚 | A kind of method predicting central air-conditioning exception |
| CN105823120A (en) * | 2016-03-23 | 2016-08-03 | 广东美的暖通设备有限公司 | Fault judging and handling method and system for target current switch of water system |
| CN107062624B (en) * | 2017-05-08 | 2019-08-30 | 珠海格力电器股份有限公司 | Water channel abnormity detection method and detection system of air energy water heater |
| CN107525218B (en) * | 2017-07-27 | 2019-10-18 | 奥克斯空调股份有限公司 | A kind of self-adaptation control method and system of A/C pressure switch wiring |
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| CN2591827Y (en) * | 2002-12-25 | 2003-12-10 | 泰豪科技股份有限公司 | Water flow turning-on &-off motion monitoring & protector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013024458A (en) * | 2011-07-20 | 2013-02-04 | Panasonic Corp | Heat pump type hot water heating device |
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| CN2591827Y (en) * | 2002-12-25 | 2003-12-10 | 泰豪科技股份有限公司 | Water flow turning-on &-off motion monitoring & protector |
| CN2800143Y (en) * | 2005-01-27 | 2006-07-26 | 广东科龙电器股份有限公司 | Water system with flow switch for air conditioner unit |
| EP2105686A2 (en) * | 2008-03-26 | 2009-09-30 | Sanyo Electric Co., Ltd. | Chiller unit, refrigeration system having chiller unit and air conditioner having chiller unit |
| CN102721155A (en) * | 2012-06-28 | 2012-10-10 | 中国扬子集团滁州扬子空调器有限公司 | Control device and control method for rapidly detecting abnormality of commercial air conditioning water system and protecting commercial air conditioning water system |
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