CN101017019A - Water-break protection device of air-conditioning unit using water as heat transfer medium - Google Patents
Water-break protection device of air-conditioning unit using water as heat transfer medium Download PDFInfo
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- CN101017019A CN101017019A CN 200610042337 CN200610042337A CN101017019A CN 101017019 A CN101017019 A CN 101017019A CN 200610042337 CN200610042337 CN 200610042337 CN 200610042337 A CN200610042337 A CN 200610042337A CN 101017019 A CN101017019 A CN 101017019A
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- water
- auxiliary reclay
- normally opened
- opened contact
- flow switch
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Abstract
The invention relates to a water breaking protector which uses water as heat exchange medium, used in air conditioner, while present technique uses a controller to check water switch and control compressor, with inaccurate water station detection. And in invention, two middle relays via a wire terminal form a control circuit, to connect an external controller and a water switch, and link with an open contactor of an alternative-current contactor of a water pump, therefore, the invention checks the water states before starts water pump and after powers the machine and the water states after starts the water pump to convert the water state into inactive signal to be transmitted to the controller of the air conditioner, to control the air conditioner. The invention can avoid running air conditioner when water is not fed.
Description
Affiliated technical field
The present invention relates to a kind of no water protector of using as the air-conditioning unit of heat transferring medium with water.
Background technology
At present, mostly adopt generator set controller to detect the state of water flow switch with water as the air-conditioning unit of heat transferring medium.When the output point of water flow switch was off-state, controller thought that water system cuts off the water supply, and just stops the operation of machine set compressor; When the output point of water flow switch was closure state, controller thought that water system discharge is normal, just controls machine set compressor and normally moves.The shortcoming of this generator set controller is: the current operation conditions that can not accurately judge the unit water system.When reasons such as the mechanical breakdown of, water flow switch artificial as the user or installation caused the output point of water flow switch closed mistakenly, generator set controller can think mechanically that current are normal.If this moment, compressor still moved, the unit high pressure can surpass normal value when heating; Can cause water freezing, bursting by freezing evaporimeter, cold-producing medium leakage, condenser in the evaporimeter to intake, reach the generation that compressor suffers a series of accidents such as liquid hammer during refrigeration.
Summary of the invention
In order to overcome the drawback that traditional generator set controller can not effectively be protected unit; the invention provides a kind of air-conditioning unit no water protector; this no water protector can accurately judge the current operation conditions of air-conditioning unit water system, can effectively avoid because of the water system series infringement that compressor causes unit when still continuing to move of cutting off the water supply.
The technical solution adopted for the present invention to solve the technical problems is:
This no water protector is mainly two and merely hits a relay by the molecular control circuit of terminals, the water flow switch on external generator set controller and the water system pipeline, and with the A.C. contactor normally opened contact interlocking of water pump.By back water flow switch status detection that water flow switch status detection and water pump before the water pump start of unit energising back are started shooting, the situation whether current that record are moved is converted into passive signal and sends the controller of air-conditioning unit to, thereby the air-conditioning unit is carried out start and stop control.
In the unit control system energising is L, after the N end adds rated voltage, because this moment, water pump did not also bring into operation, under the water flow switch normal condition, 1,2 should disconnect, at this moment the coil KA1 of 1# auxiliary reclay can not get electric adhesive, and the normally-closed contact KA11 of 1# auxiliary reclay is conducting between 1,4 promptly so.After unit start, because water pump operation earlier, the normally opened contact KM of water pump A.C. contactor promptly becomes conducting between 4,5 so, the 2# auxiliary reclay coil KA2 adhesive of switching on, and by the KA21 self-locking, KA2 keeps attracting state, conducting between 7,8.After water pump operation and discharge reach requirement; water flow switch SL i.e. conducting between 1,2; the coil KA1 of 1# auxiliary reclay gets electric adhesive; 6, conducting between 7; then conducting between 6,8 so; this no water protector is to normal passive signal of water system current situation of generator set controller KC output, by the normal operation of generator set controller KC control machine set compressor.The situation that water system is cut off the water supply takes place if be in operation; water flow switch SL disconnects so; promptly disconnect between 1,2; 1# auxiliary reclay coil losing electricity; 6, disconnect between 7; then disconnect between 6,8 so, this no water protector stops the operation of machine set compressor to passive signal that water system is cut off the water supply of generator set controller KC output by generator set controller KC.
If the user artificial with water flow switch 1,2 short circuits; or owing to the fault of mechanical aspects or install improper causing under the situation that the anhydrous stream of water system passes through; 1, conducting between 2; this no water protector can effectively be discerned; in the case, before unit energising and water pump are not started shooting, be conducting between 1,2; then 1# auxiliary reclay KA1 energising adhesive disconnects between 1,4.After water pump brings into operation; though 4, between 5 be conducting; but because not conducting between 1,4; 2# auxiliary reclay KA2 can not get electric adhesive; disconnect between 7,8 so; 6, then disconnect between 8, this no water protector stops the operation of machine set compressor to passive signal that water system is cut off the water supply of generator set controller KC output by generator set controller KC.
If water pump does not move, not conducting between 4,5, auxiliary reclay KA2 can not get electric adhesive; 7, not conducting between 8; 6,8 not conductings, this no water protector stops the operation of machine set compressor to passive signal that water system is cut off the water supply of generator set controller KC output by generator set controller KC.
The invention has the beneficial effects as follows: 1. can accurately judge the current operation conditions of air-conditioning unit water system.2. effectively avoid because of the water system series infringement that the air-conditioning unit causes unit when still continuing to move of cutting off the water supply.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a line map of the present invention.In the frame of broken lines is the wiring diagram of electric wiring of the present invention.
KC. generator set controller; SL. water flow switch output point; KM. the normally opened contact of water pump contactor; 6,8. no water protector current status signals output; the coil of KA1.1# auxiliary reclay; the coil of KA2.2# auxiliary reclay; 1, the 2. output point of water flow switch; the normally-closed contact of KA11.1# auxiliary reclay, the normally opened contact of KA12.1# auxiliary reclay, 4, the 5. normally opened contact of the A.C. contactor of water pump; the normally opened contact of KA21.2# auxiliary reclay; the normally opened contact of KA22.2# auxiliary reclay, XT. binding post, L, N. power supply.
The specific embodiment
Be connected with the normally opened contact (KM) of generator set controller (KC), water flow switch output point (SL) and water pump contactor by corresponding lead according to the electric wiring in the frame of broken lines shown in Figure 1.
(SL) is connected to no water protector by binding post (XT) according to the output point with water flow switch shown in Figure 1; one end of water flow switch is connected to power supply phase line L by Line 1; the Line 1 of while with the normally-closed contact (KA11) of 1# auxiliary reclay joins; join with the Line 1 of the normally opened contact (KA21) of 2# auxiliary reclay, any of the coil (KA1) of the other end of water flow switch by No. 2 lines and 1# auxiliary reclay is connected.Another o'clock of the coil (KA1) of 1# auxiliary reclay zero line N by No. 3 lines and power supply joined and join with an end of the coil (KA2) of 2# auxiliary reclay simultaneously.With the normally opened contact (KA21) of another point of the normally-closed contact (KA11) of 1# auxiliary reclay and 2# auxiliary reclay a bit and the click-through of the normally opened contact (KM) of water pump interchange electric shock device cross No. 4 lines and be connected.One end of the A.C. contactor (KM) of water pump is connected by No. 5 lines with an end of the coil (KA2) of 2# auxiliary reclay.One end of the normally opened contact (KA12) of 1# auxiliary reclay is joined by No. 6 lines and binding post (XT), by a bit being connected of No. 6 lines and generator set controller (KC).The other end of the normally opened contact (KA22) of 2# auxiliary reclay is connected with binding post (XT) by No. 8 lines, and puts with another of generator set controller (KC) and to be connected.The other end of 1# auxiliary reclay (KA12) is connected with an end of 2# auxiliary reclay (KA22) by No. 7 lines.
Claims (3)
1. no water protector of using as the air-conditioning unit of heat transferring medium with water; by detecting the state of water flow switch; control the operation of machine set compressor, it is characterized in that: the water flow switch on external generator set controller and the water system pipeline, and with the A.C. contactor normally opened contact of water pump interlocking.
2. no water protector according to claim 1 is characterized in that: be two to merely hit a relay by the molecular control circuit of terminals.
3. no water protector according to claim 1; it is characterized in that: the coil of the input point serial connection 1# auxiliary reclay of water flow switch; the normally-closed contact of 1# auxiliary reclay and the coil that is connected in series the 2# auxiliary reclay after the normally opened contact of water pump A.C. contactor is connected in series again; the 2# auxiliary reclay is by the normally opened contact self-locking, and 1# auxiliary reclay normally opened contact is connected in series the passive signal whether back is moved to generator set controller output current with 2# auxiliary reclay normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610042337A CN100587349C (en) | 2006-02-11 | 2006-02-11 | Water-break protection device of air-conditioning unit using water as heat transfer medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610042337A CN100587349C (en) | 2006-02-11 | 2006-02-11 | Water-break protection device of air-conditioning unit using water as heat transfer medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101017019A true CN101017019A (en) | 2007-08-15 |
| CN100587349C CN100587349C (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610042337A Expired - Fee Related CN100587349C (en) | 2006-02-11 | 2006-02-11 | Water-break protection device of air-conditioning unit using water as heat transfer medium |
Country Status (1)
| Country | Link |
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| CN (1) | CN100587349C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104713112A (en) * | 2013-12-13 | 2015-06-17 | 贵州中烟工业有限责任公司 | Boiler dust removal circular processing system |
| 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 |
| CN109296526A (en) * | 2018-10-30 | 2019-02-01 | 苏州奥天诚机械有限公司 | Refrigeration unit current cutting protection structure |
| CN111406186A (en) * | 2017-10-03 | 2020-07-10 | 阿斯彭水泵有限公司 | Connection box for condensate pump in air conditioning unit |
-
2006
- 2006-02-11 CN CN200610042337A patent/CN100587349C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104713112A (en) * | 2013-12-13 | 2015-06-17 | 贵州中烟工业有限责任公司 | Boiler dust removal circular processing system |
| CN104713112B (en) * | 2013-12-13 | 2017-01-18 | 贵州中烟工业有限责任公司 | Boiler dust removal circular processing system |
| 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 |
| CN111406186A (en) * | 2017-10-03 | 2020-07-10 | 阿斯彭水泵有限公司 | Connection box for condensate pump in air conditioning unit |
| CN109296526A (en) * | 2018-10-30 | 2019-02-01 | 苏州奥天诚机械有限公司 | Refrigeration unit current cutting protection structure |
| CN109296526B (en) * | 2018-10-30 | 2024-04-05 | 苏州奥德高端装备股份有限公司 | Flow-break protection structure of refrigerating unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100587349C (en) | 2010-02-03 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20130211 |