CN103353150B - Air-cooled heat-pump air-conditioner group with cryogenic refrigeration - Google Patents
Air-cooled heat-pump air-conditioner group with cryogenic refrigeration Download PDFInfo
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- CN103353150B CN103353150B CN201310288483.5A CN201310288483A CN103353150B CN 103353150 B CN103353150 B CN 103353150B CN 201310288483 A CN201310288483 A CN 201310288483A CN 103353150 B CN103353150 B CN 103353150B
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Abstract
The invention is specifically related to the indoor set control to the fan speed regulation device in off-premises station.Air-cooled heat-pump air-conditioner group with cryogenic refrigeration, the control module of indoor set passes through air-blower control point control condensation fan, by the cold and hot conversion electromagnetic valve of conversion and control point control, it is connected to fan speed regulation device between air-blower control point and condensation fan, it is provided with relay, conversion and control point received by its coil, fan speed regulation device is received in its controlled contact, make fan speed regulation device and cold and hot conversion electromagnetic valve synchronization action as follows: the conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device connect to the controlled contact of refrigeration mode then relay, the conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device be bypassed to the controlled contact of heating mode then relay.Fan speed regulation device is by conversion and control point control and cold and hot conversion electromagnetic valve synchronization action, and the control module of such indoor set is no need for off-premises station is increased controlling output point, thus the wiring cost saved between indoor set and off-premises station.
Description
Technical field
The invention relates to air-cooled heat-pump air-conditioner group, is specifically related to the indoor set Bypass Control to the fan speed regulation device in off-premises station.
Background technology
With the air conditioning unit occasion being typically employed in transition season and also having refrigeration demand winter of cryogenic refrigeration function, such as data center module, communication base station, equipment room etc..
Cryogenic refrigeration function can change air quantity and realize by regulating off-premises station condensation fan rotating speed according to system condensing pressure and outdoor temperature, but the existing Wind-cooling type with cryogenic refrigeration is air conditioning unit that be usually single cold type, does not possess heat pump functional.
Fan speed regulation device not speed governing when air-cooled heat-pump air-conditioner group to realize heating, during refrigeration, fan speed regulation device is to condensation fan speed governing, then the control module of indoor set needs off-premises station is increased to control output point, so can increase the wiring cost between indoor set and off-premises station.
Summary of the invention
Fan speed regulation device not speed governing when the purpose of the invention is both to have realized heating, during refrigeration, fan speed regulation device is to condensation fan speed governing, and the control module of indoor set controls output point without off-premises station is increased again, thus the wiring cost saved between indoor set and off-premises station.
The air-cooled heat-pump air-conditioner group with cryogenic refrigeration is provided for this, including indoor set and off-premises station,
Indoor set has control module, and off-premises station has condensation fan, cold and hot conversion electromagnetic valve, controls module by air-blower control point control condensation fan, controls module by the cold and hot conversion electromagnetic valve of conversion and control point control,
It is characterized in that,
It is connected to fan speed regulation device between air-blower control point and condensation fan,
Being provided with relay, conversion and control point received by its coil, and fan speed regulation device is received in its controlled contact, makes fan speed regulation device and cold and hot conversion electromagnetic valve synchronization action as follows:
The conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device connect to the controlled contact of refrigeration mode then relay,
The conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device be bypassed to the controlled contact of heating mode then relay.
Beneficial effect: when not increasing control output point, fan speed regulation device not speed governing when realization heats, during refrigeration, fan speed regulation device is to condensation fan speed governing, it is crucial that utilize relay that blower fan speed regulator and conversion and control point are connected, conversion and control point causes the action of controlled contact by the coil of relay, so that fan speed regulation device is by conversion and control point control and cold and hot conversion electromagnetic valve synchronization action, the control module of such indoor set is no need for off-premises station is increased controlling output point, thus the wiring cost saved between indoor set and off-premises station.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the air-cooled heat-pump air-conditioner group with cryogenic refrigeration.
Detailed description of the invention
With air-cooled heat-pump air-conditioner group such as Fig. 1 of cryogenic refrigeration, including indoor set 1 and off-premises station 2.The control module 3 of indoor set 1 controls each equipment in off-premises station 2 by each control point being located in off-premises station 2, wherein:
Control module 3 and control condensation fan 8 by air-blower control point 4, fan speed regulation device 6 parallel with one another and speed governing bypass it is provided with between air-blower control point 4 and condensation fan 8, the normally-closed contact J1 of relay is serially connected on fan speed regulation device 6, and the normally opened contact J2 of relay is serially connected in speed governing bypass；
Control module 3 controls cold and hot conversion electromagnetic valve 7, the coil of cold and hot conversion electromagnetic valve 7 and the coil J of relay by conversion and control point 5 and is connected between conversion and control point 5 and ground.
Fan speed regulation device 6 is as follows with cold and hot conversion electromagnetic valve 7 synchronization action:
When needs freeze, control module 3 to conversion and control point 5 output low level, cold and hot conversion electromagnetic valve 7 is made to be in the normal state, corresponding refrigeration mode, make the coil J no power of relay simultaneously, then controlled contact J1, J2 of relay is also at normality, is serially connected in the Guan Bi of the normally-closed contact J1 on fan speed regulation device 6 and makes fan speed regulation device 6 connect, and fan speed regulation device 6 is just to condensation fan 8 speed governing；
When needs heat, control module 3 and export high level to conversion and control point 5, make the coil electricity of cold and hot conversion electromagnetic valve 7 thus switching to heating mode, the coil J simultaneously making relay is also energized, then the normally-closed contact J1 of relay disconnects, the normally opened contact J2 Guan Bi of relay, has connected speed governing bypass, has made fan speed regulation device 6 be bypassed.
Fan speed regulation device 6 is step-less adjustment, and cold and hot conversion electromagnetic valve 7 is cross valve.
The present embodiment air-cooled heat-pump air-conditioner group with cryogenic refrigeration is possible not only to produce in air conditioning system maker realize, can also realize in mounting site repacking, during repacking, only blower fan speed regulator 6 need to be connected between air-blower control point 4 and condensation fan 8, the coil J of relay is connected between conversion and control point 5 and ground, the normally-closed contact J1 of relay is serially connected on fan speed regulation device 6, and the normally opened contact J2 of relay is connected across between air-blower control point 4 and condensation fan 8, reequip very convenient.
Claims (5)
1. the air-cooled heat-pump air-conditioner group with cryogenic refrigeration, including indoor set and off-premises station,
Indoor set has control module, and off-premises station has condensation fan, cold and hot conversion electromagnetic valve, controls module by air-blower control point control condensation fan, controls module by the cold and hot conversion electromagnetic valve of conversion and control point control,
It is characterized in that,
It is connected to fan speed regulation device between air-blower control point and condensation fan,
Being provided with relay, conversion and control point received by its coil, and fan speed regulation device is received in its controlled contact, makes fan speed regulation device and cold and hot conversion electromagnetic valve synchronization action as follows:
The conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device connect to the controlled contact of refrigeration mode then relay,
The conversion and control point cold and hot conversion electromagnetic valve of switching makes fan speed regulation device be bypassed to the controlled contact of heating mode then relay.
2. air-cooled heat-pump air-conditioner group according to claim 1, it is characterized in that, the coil of cold and hot conversion electromagnetic valve and the coil of relay are connected between conversion and control point and ground, cold and hot conversion electromagnetic valve normality correspondence refrigeration mode, the speed governing bypass in parallel with fan speed regulation device it is provided with between air-blower control point and condensation fan, the normally-closed contact of relay is serially connected on fan speed regulation device, and the normally opened contact of relay is serially connected in speed governing bypass.
3. air-cooled heat-pump air-conditioner group according to claim 1, is characterized in that, air-blower control point and conversion and control point are located in off-premises station.
4. air-cooled heat-pump air-conditioner group according to claim 1, is characterized in that, described fan speed regulation device is step-less adjustment.
5. air-cooled heat-pump air-conditioner group according to claim 1, is characterized in that, described cold and hot conversion electromagnetic valve is cross valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288483.5A CN103353150B (en) | 2013-07-10 | 2013-07-10 | Air-cooled heat-pump air-conditioner group with cryogenic refrigeration |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310288483.5A CN103353150B (en) | 2013-07-10 | 2013-07-10 | Air-cooled heat-pump air-conditioner group with cryogenic refrigeration |
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| CN103353150A CN103353150A (en) | 2013-10-16 |
| CN103353150B true CN103353150B (en) | 2016-07-20 |
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| CN201310288483.5A Active CN103353150B (en) | 2013-07-10 | 2013-07-10 | Air-cooled heat-pump air-conditioner group with cryogenic refrigeration |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404882U (en) * | 2013-07-10 | 2014-01-22 | 广东欧科空调制冷有限公司 | Air conditioning unit with subzero refrigeration air cooled heat pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06201235A (en) * | 1992-12-28 | 1994-07-19 | Apisute:Kk | Cooling device for closed control panel |
| JPH09203551A (en) * | 1996-01-25 | 1997-08-05 | Yamatake Honeywell Co Ltd | Fan coil unit control apparatus |
| US7100382B2 (en) * | 2003-07-25 | 2006-09-05 | Emerson Electric Co. | Unitary control for air conditioner and/or heat pump |
| CN101666535B (en) * | 2009-09-09 | 2011-06-15 | 广东欧科空调制冷有限公司 | Low-temperature refrigeration control device of single-phase motor in air conditioning unit |
| CN202304165U (en) * | 2011-09-30 | 2012-07-04 | 李声铨 | Control circuit of cold and warm air conditioning water heater |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404882U (en) * | 2013-07-10 | 2014-01-22 | 广东欧科空调制冷有限公司 | Air conditioning unit with subzero refrigeration air cooled heat pump |
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| CN103353150A (en) | 2013-10-16 |
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