CN102116515A - Intelligent control method of refrigerating and heating recovery mode of air conditioning unit - Google Patents
Intelligent control method of refrigerating and heating recovery mode of air conditioning unit Download PDFInfo
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- CN102116515A CN102116515A CN 200910214479 CN200910214479A CN102116515A CN 102116515 A CN102116515 A CN 102116515A CN 200910214479 CN200910214479 CN 200910214479 CN 200910214479 A CN200910214479 A CN 200910214479A CN 102116515 A CN102116515 A CN 102116515A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 277
- 238000011084 recovery Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 227
- 239000008236 heating water Substances 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 134
- 239000003507 refrigerant Substances 0.000 claims description 26
- 238000007710 freezing Methods 0.000 claims description 20
- 230000008014 freezing Effects 0.000 claims description 20
- 238000010977 unit operation Methods 0.000 claims description 12
- 230000009466 transformation Effects 0.000 claims description 2
- 239000002826 coolant Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention provides an intelligent control method of a refrigerating and heating recovery mode of an air conditioning unit. By using the method, the hot water can be made and taken flexibly, and the judgment and control are accurate and have no error; the operation state of the module can be automatically controlled by each module of the air conditioning unit according to the actual condition; the air conditioning unit comprises a control system, a heat exchanger, a throttling device, a compressor, a hot water heat exchanger and a coolant pipeline. The intelligent control method comprises a refrigerating and heating recovery mode, when the air conditioning unit is operated in the refrigerating and heating recovery mode, according to the actual operation condition, the control system automatically enters the operation states of standby, or refrigerating, or refrigerating heating recovery, or heating water through judging the comparison of air conditioning water intake temperature T_C, the refrigerating starting-up temperature T_CK preset by the air conditioning unit and the refrigerating machine halting temperature T_CK, and the temperature interval control unit after judging the comparison of the hot water tank temperature T_R, hot water starting-up temperature T_RK preset by the air conditioning unit and hot water machine halting temperature T_RT.
Description
Technical field
The invention belongs to air conditioner cold water unit control field, relate in particular to a kind of air-conditioning unit refrigeration heat recovery mode intelligence control method.
Background technology
The recuperation of heat air-conditioning unit of common most of producers is when the refrigeration heat recovery mode on the market, unit just can be produced hot water when the air-conditioning refrigeration duty was arranged, and do not have refrigeration duty constantly unit can't produce hot water, so just exist the client when needs hot water, can't in time obtain hot water, can not select automatically according to client's operation demand, cause unit can not satisfy requirement of client fully, bring the waste of very big trouble and resource to the client.
For multimode air-conditioning unit, during operation, each unit in the module can only be unified running refrigerating or unified running refrigerating recuperation of heat state, and each module can not independently be controlled the running status of this module according to actual conditions, causes the waste of resource equally.
In addition, the air-conditioning unit of prior art only adopts simple temperature to control and judges that unit is running refrigerating or refrigeration recuperation of heat state, has error in judgement, can't accurately control.
Summary of the invention
The object of the present invention is to provide a kind of air-conditioning unit refrigeration heat recovery mode intelligence control method, can produce hot water neatly, judgement and precise control are error free.
Another object of the present invention is to provide a kind of air-conditioning unit refrigeration heat recovery mode intelligence control method, and each module of unit can independently be controlled the running status of this module, energy savings according to actual conditions.
The present invention is achieved through the following technical solutions:
Air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit include control system, heat exchanger, throttling arrangement, compressor, in order to the hot water heat exchanger of producing the domestic hot-water and be connected in many refrigerant pipes between described heat exchanger, throttling arrangement, compressor, the hot water heat exchanger; Refrigerant circulates in described refrigerant pipe; Wherein, described air-conditioning unit refrigeration heat recovery mode intelligence control method includes the refrigeration heat recovery mode; when air-conditioning unit running refrigerating heat recovery mode; control system is automatically according to the ruuning situation of reality; by the refrigeration turn-on temperature T_CK that judges that air-conditioning inflow temperature T_C and air-conditioning unit set in advance; refrigeration shutdown temperature T_CT compares, and judges the hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance; the temperature range controller group selection that obtains after hot water shutdown temperature T_RT compares enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
Air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit includes a plurality of modules, be primary module and more than one submodule, each described primary module and submodule include control system, heat exchanger, throttling arrangement, compressor, in order to the hot water heat exchanger of producing the domestic hot-water and be connected in many refrigerant pipes between described heat exchanger, throttling arrangement, compressor, the hot water heat exchanger; Refrigerant circulates in described refrigerant pipe; When the equal running refrigerating heat recovery mode of each described primary module and submodule; automatic separately ruuning situation according to this module reality; by judging that refrigeration turn-on temperature T_CK, refrigeration shutdown temperature T_CT that air-conditioning inflow temperature T_C and air-conditioning unit set in advance compare, and judge that hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance, the temperature range that hot water shutdown temperature T_RT obtains after comparing control that the selection of this module enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
Beneficial effect of the present invention is as follows:
Air-conditioning unit refrigeration heat recovery mode intelligence control method of the present invention; because when air-conditioning unit running refrigerating heat recovery mode; control system is automatically according to the ruuning situation of reality; by judging that refrigeration turn-on temperature T_CK, refrigeration shutdown temperature T_CT that air-conditioning inflow temperature T_C and air-conditioning unit set in advance compare, and the hot water turn-on temperature T_RK that sets in advance of judgement hot water temperature T _ R and air-conditioning unit, temperature range controller group selection that hot water shutdown temperature T_RT obtains after comparing enter standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
Air-conditioning unit running refrigerating heat recovery mode, can be according to the ruuning situation of reality, select unit should running refrigerating, the recuperation of heat of freezing, heat water, when even the room does not have the air-conditioning refrigeration duty, also can be for the client provide the domestic hot-water, must there be the air-conditioning refrigeration duty just can produce the mode of hot water during the operation of abandoning tradition refrigeration heat recovery mode; During the multimode operation, it is refrigeration, the recuperation of heat of freezing that the interior unit of module machine can move automatically, heat water, rather than unified running refrigerating, refrigeration recuperation of heat or unified operation heat water, when therefore multimode is moved, unit can satisfy air-conditioning refrigeration duty and hot water load simultaneously according to the running status of condition judgment oneself; Adopt interval temperature control method, the state of control unit operation, judgement and precise control are error free.Unit can be according to air conditioner load, and hot water load's situation is moved different running statuses, satisfies the demand of client to air-conditioning and hot water, guarantees that unit capacity can access maximum performance.
Description of drawings
Fig. 1 is the theory diagram of air-conditioning unit refrigeration heat recovery mode intelligence control method of the present invention;
Fig. 2 is the flow chart of air-conditioning unit refrigeration heat recovery mode intelligence control method embodiment of the present invention;
Fig. 3 is the structural representation of air-conditioning unit of the present invention.
Description of reference numerals:
10, compressor, 20, water cooling heat exchanger, 30, hot water heat exchanger, 40, air cooling heat exchanger, 50, fluid reservoir, 60, gas-liquid separator, 70, second electric expansion valve, 801, first check valve, 802, second check valve, 90, first electric expansion valve.
The specific embodiment
Ask for an interview Fig. 1 to Fig. 3, the invention discloses air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit includes control system, air cooling heat exchanger 40, water cooling heat exchanger 20, throttling arrangement, compressor 10, in order to the hot water heat exchanger 30 of producing the domestic hot-water and be connected in many refrigerant pipes between described air cooling heat exchanger 40, water cooling heat exchanger 20, throttling arrangement, compressor 10, the hot water heat exchanger 30; Refrigerant circulates in described refrigerant pipe; Wherein, described air-conditioning unit refrigeration heat recovery mode intelligence control method includes the refrigeration heat recovery mode; when air-conditioning unit running refrigerating heat recovery mode; control system is automatically according to the ruuning situation of reality; by the refrigeration turn-on temperature T_CK that judges that air-conditioning inflow temperature T_C and air-conditioning unit set in advance; refrigeration shutdown temperature T_CT compares, and judges the hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance; the temperature range controller group selection that obtains after hot water shutdown temperature T_RT compares enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
Air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit includes a plurality of modules, be primary module and more than one submodule, each described primary module and submodule include control system, air cooling heat exchanger 40, water cooling heat exchanger 20, throttling arrangement, compressor 10, in order to the hot water heat exchanger 30 of producing the domestic hot-water and be connected in many refrigerant pipes between described air cooling heat exchanger 40, water cooling heat exchanger 20, throttling arrangement, compressor 10, the hot water heat exchanger 30; Refrigerant circulates in described refrigerant pipe; Refrigerant circulates in described refrigerant pipe; When the equal running refrigerating heat recovery mode of each described primary module and submodule; automatic separately ruuning situation according to this module reality; by judging that refrigeration turn-on temperature T_CK, refrigeration shutdown temperature T_CT that air-conditioning inflow temperature T_C and air-conditioning unit set in advance compare, and judge that hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance, the temperature range that hot water shutdown temperature T_RT obtains after comparing control that the selection of this module enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
Described hot water heat exchanger 30 is a shell and tube exchanger, and air cooling heat exchanger 40 is a finned heat exchanger, and described water cooling heat exchanger is the air conditioner water case tube heat exchanger.
When described air-conditioning unit or air conditioner pack module enter when heating the water running state, refrigerant circulates by following direction in described refrigerant pipe:
Compressor 10---the first cross valve 4V1---the second cross valve 4V2---hot water heat exchanger 30---check valve 80---fluid reservoir 50---first electric expansion valve 90 (EXV1)---air cooling heat exchanger 40---the second cross valve 4V2---gas-liquid separator 60---compressor 10.
When described air-conditioning unit or air conditioner pack module entered refrigeration recuperation of heat running status, refrigerant circulated by following direction in described refrigerant pipe:
Compressor 10---the first cross valve 4V1---the second cross valve 4V2---hot water heat exchanger 30---first check valve 801---fluid reservoir 50---second electric expansion valve 70 (EXV2)---water cooling heat exchanger 20---the first cross valve 4V1---gas-liquid separator 60---compressor 10.
When described air-conditioning unit or air conditioner pack module entered the refrigerating operaton state, refrigerant circulated by following direction in described refrigerant pipe:
Compressor 10---the first cross valve 4V1---the second cross valve 4V2---air cooling heat exchanger 40---second check valve 802---fluid reservoir 50---second electric expansion valve 70 (EXV2)---air conditioner water case tube heat exchanger 20---the first cross valve 4V1---gas-liquid separator 60---compressor 10.
Described air-conditioning unit refrigeration heat recovery mode intelligence control method, machine group selection enter standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state is:
T_C air-conditioning inflow temperature T_CK refrigeration turn-on temperature T_CT refrigeration shutdown temperature
T_R hot water temperature T _ RK hot water turn-on temperature T_RT hot water shutdown temperature
Switching condition such as following table:
| The unit operation pattern | T_R≥T_RT | T_RK＜T_R＜T_RT | T_R≤T_RK |
| ?T_C≤T_CT | Standby (interval 1) | Standby/heat water; (interval 2) | Heat water (interval 3) |
| ?T_CT＜T_C＜T_CK | Standby/refrigeration; (interval 4) | Standby/refrigerating/heating water/refrigeration recuperation of heat; (interval 5) | Heat water/refrigeration recuperation of heat; (interval 6) |
| ?T_C≥T_CK | Refrigeration (interval 7) | Refrigeration/refrigeration recuperation of heat (interval 8) | Refrigeration recuperation of heat (interval 9) |
Illustrate:
Described air-conditioning unit refrigeration heat recovery mode intelligence control method, machine group selection enter standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
1. interval 1: promptly: T_R 〉=T_RT, T_C≤T_CT;
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: the condition of T_R 〉=T_RT, T_C≤T_CT, control system is judged the standby under refrigeration recuperation of heat state of air-conditioning unit or its primary module and submodule so;
When the air-conditioning unit in running:
When air-conditioning unit or its primary module and submodule from the refrigerating operaton state, promptly interval 4:T_R 〉=T_RT, T_CT＜T_C＜T_CK reduce to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and the standby of submodule refrigeration;
When air-conditioning unit or its primary module and submodule from refrigeration recuperation of heat running status, be that interval 5:T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK rises to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat standby;
When air-conditioning unit or its primary module and submodule from heating the water running state, be that interval 2:T_RK＜T_R＜T_RT, T_C≤T_CT rise to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and the standby of submodule refrigerating state.
2. interval 2: i.e. T_RK＜T_R＜T_RT, T_C≤T_CT:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, control system judge that air-conditioning unit or its primary module and submodule running heat the water running state;
When the air-conditioning unit in running:
Judge water tank temperature when the control system of air-conditioning unit or its primary module and submodule and reduce to the interval from hot water shutdown temperature T_RT: T_RK＜T_R＜T_RT, T_C≤T_CT, control system judges that air-conditioning unit or its primary module and submodule keep former holding state;
When the control system of air-conditioning unit or its primary module and submodule judges that water tank temperature rises to the interval from hot water turn-on temperature T_RK: T_RK＜T_R＜T_RT, T_C≤T_CT, control system judges that air-conditioning unit or its primary module and submodule heat water running.
3. interval 3, i.e. T_R≤T_RK, T_C≤T_CT:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_R≤T_RK, T_C≤T_CT, the condition of hot water temperature T _ R≤T_RK, air-conditioning inflow temperature T_C≤T_CT when promptly starting shooting, control system judge that air-conditioning unit or its primary module and submodule operation heat water state;
When the air-conditioning unit in running:
Judge air-conditioning inflow temperature T_C and hot water temperature T _ R when the control system of air-conditioning unit or its primary module and submodule and be changed to the interval from other intervals: when T_R≤T_RK, T_C≤T_CT, control system is judged that air-conditioning unit or its primary module and submodule running status transfer to and is heated water running.
4. interval 4, i.e. T_R 〉=T_RT, T_CT＜T_C＜T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_R 〉=T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton;
When the air-conditioning unit in running:
Judge air-conditioning water inlet water temperature when the control system of air-conditioning unit or its primary module and submodule and reduce to the interval from T_CK: when T_R 〉=T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating.
5. interval 5, i.e. T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
Judge from refrigeration recuperation of heat holding state interval 1:T_R 〉=T_RT, T_C≤T_CT when the control system of air-conditioning unit or its primary module and submodule and to reduce to the interval: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule refrigeration recuperation of heat state continue standby;
Judge air-conditioning unit or its primary module and submodule when control system and reduce to the interval from heating water holding state interval 1:T_R 〉=T_RT, T_C≤T_CT: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule heat water state and continue standby;
Judge air-conditioning unit or its primary module and submodule when control system and reduce to the interval from refrigeration holding state interval 1:T_R 〉=T_RT, T_C≤T_CT: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule refrigerating state continue standby;
Judge air-conditioning unit or its primary module and submodule air-conditioning water inlet water temperature when control system and reduce to the interval from T_RT from T_CK, water tank temperature: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating state;
Judge air-conditioning unit or its primary module and submodule water tank temperature when control system and rise to this interval: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK from T_CT that control system judges that air-conditioning unit or its primary module and submodule operation heat water state from T_RK, air-conditioning water inlet water temperature;
When control system judges that air-conditioning unit or its primary module and submodule water tank temperature are when T_RK rises to interval T_RK＜T_R＜T_RT, and when air-conditioning water inlet water temperature when T_CK reduces to interval T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and the recuperation of heat of submodule running refrigerating.
6. interval 6, i.e. T_R≤T_RK, T_CT＜T_C＜T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_R≤T_RK, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
The air-conditioning water inlet water temperature of judging air-conditioning unit or its primary module and submodule when control system rises to the interval from T_CT: T_R≤T_RK, and T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule operation heat water state;
When the air-conditioning water inlet water temperature of control system judgement air-conditioning unit or its primary module and submodule is reduced to the interval from T_CK: T_R≤T_RK, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating recuperation of heat state.
7. interval 7, that is: T_R 〉=T_RT, T_C 〉=T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_R 〉=T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton;
When the air-conditioning unit in running:
Judge air-conditioning unit or its primary module and submodule when control system and be changed to the interval from other intervals: when T_R 〉=T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton.
8. interval 8, that is: T_RK＜T_R＜T_RT, T_C 〉=T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
Judge air-conditioning unit or its primary module and submodule water tank temperature when control system and reduce to the interval from hot water shutdown temperature T_RT: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating state;
When air-conditioning unit or its primary module and submodule control system judge that water tank temperature rises to the interval from hot water turn-on temperature T_RK: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation.
9. interval 9, i.e. T_R≤T_RK, T_C 〉=T_CK:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies interval: T_R≤T_RK, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
In the running, when control system judges that air-conditioning unit or its primary module and submodule are when other intervals are changed to the interval: T_R≤T_RK, T_C 〉=T_CK, control system is judged the cold and hot recovery operation of air-conditioning unit or its primary module and the submodule transformation of ownership.
Embodiment:
As Fig. 2, in the present embodiment, air-conditioning unit refrigeration heat recovery mode intelligence control method comprises following concrete steps:
Step 1: when the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies the condition of this interval: T_R 〉=T_RT, T_C≤T_CT, enter step 2;
Step 2: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and the hot water temperature reduces, and satisfies the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, enters step 3;
Step 3: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and air-conditioning water inlet water temperature improves, and satisfies the condition of T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, enters step 4;
Step 4: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and the hot water temperature continues to reduce, and satisfies T_R≤T_RK, and the condition of T_CT＜T_C＜T_CK enters step 5;
Step 5: control system judges that the air-conditioning unit operation heats water state, and air-conditioning water inlet water temperature continues to improve, and satisfies the condition of T_R≤T_RK, T_C 〉=T_CK, enters step 6;
Step 6: control system is judged air-conditioning unit running refrigerating recuperation of heat state, and air-conditioning water inlet water temperature reduces, and satisfies T_R≤T_RK, and the condition of T_CT＜T_C＜T_CK enters step 7;
Step 7: control system is judged air-conditioning unit running refrigerating recuperation of heat state, and air-conditioning water inlet water temperature continues to reduce, and satisfies the condition of T_R≤T_RK, T_C≤T_CT, enters step 8;
Step 8: control system judges that the air-conditioning unit operation heats water state, and the hot water temperature raises, and satisfies the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, enters step 9;
Step 9: control system judges that the air-conditioning unit operation heats water state, and the hot water temperature continues to raise, and satisfies the condition of T_R 〉=T_RT, T_C≤T_CT, enters step 10;
Step 10: control system judges that the air-conditioning unit operation heats the water holding state, and air-conditioning water inlet coolant-temperature gage raises, and satisfies the condition of T_R 〉=T_RT, T_CT＜T_C＜T_CK, enters step 11;
Step 11: control system judges that the air-conditioning unit operation heats the water holding state, and air-conditioning water inlet coolant-temperature gage continues to raise, and satisfies the condition of T_R 〉=T_RT, T_C 〉=T_CK, enters step 12;
Step 12: control system is judged air-conditioning unit running refrigerating state, and the hot water temperature reduces, and satisfies the condition of T_RK＜T_R＜T_RT, T_C 〉=T_CK, enters step 13;
Step 13: control system is judged air-conditioning unit running refrigerating state, and the hot water temperature continues to reduce, and satisfies the condition of T_R≤T_RK, T_C 〉=T_CK, enters step 14;
Step 14: control system is judged air-conditioning unit running refrigerating recuperation of heat state, enters the step 7 circulation.
Above-mentioned listed specific implementation is nonrestrictive, to one skilled in the art, is not departing from the scope of the invention, and various improvement and the variation carried out all belong to protection scope of the present invention.
Claims (12)
1. air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit include control system, heat exchanger, throttling arrangement, compressor, in order to the hot water heat exchanger of producing the domestic hot-water and be connected in many refrigerant pipes between described heat exchanger, throttling arrangement, compressor, the hot water heat exchanger; Refrigerant circulates in described refrigerant pipe; It is characterized in that: described air-conditioning unit refrigeration heat recovery mode intelligence control method includes the refrigeration heat recovery mode; when air-conditioning unit running refrigerating heat recovery mode; control system is automatically according to the ruuning situation of reality; by the refrigeration turn-on temperature T_CK that judges that air-conditioning inflow temperature T_C and air-conditioning unit set in advance; refrigeration shutdown temperature T_CT compares, and judges the hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance; the temperature range controller group selection that obtains after hot water shutdown temperature T_RT compares enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
2. air-conditioning unit refrigeration heat recovery mode intelligence control method, described air-conditioning unit includes a plurality of modules, be primary module and more than one submodule, each described primary module and submodule include control system, heat exchanger, throttling arrangement, compressor, in order to the hot water heat exchanger of producing the domestic hot-water and be connected in many refrigerant pipes between described heat exchanger, throttling arrangement, compressor, the hot water heat exchanger; Refrigerant circulates in described refrigerant pipe; It is characterized in that: when the equal running refrigerating heat recovery mode of each described primary module and submodule; automatic separately ruuning situation according to this module reality; by judging that refrigeration turn-on temperature T_CK, refrigeration shutdown temperature T_CT that air-conditioning inflow temperature T_C and air-conditioning unit set in advance compare, and judge that hot water turn-on temperature T_RK that hot water temperature T _ R and air-conditioning unit set in advance, the temperature range that hot water shutdown temperature T_RT obtains after comparing control that the selection of this module enters standby or refrigeration or the recuperation of heat or heat the water running state of freezing.
3. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: the condition of T_R 〉=T_RT, T_C≤T_CT, control system is judged the standby under refrigeration recuperation of heat state of air-conditioning unit or its primary module and submodule so;
When the air-conditioning unit in running:
When air-conditioning unit or its primary module and submodule from the refrigerating operaton state, promptly interval: T_R 〉=T_RT, T_CT＜T_C＜T_CK reduces to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and the standby of submodule refrigeration;
When air-conditioning unit or its primary module and submodule from refrigeration recuperation of heat running status, be that interval T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK rises to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat standby;
When air-conditioning unit or its primary module and submodule from heating the water running state, promptly interval: T_RK＜T_R＜T_RT, T_C≤T_CT rise to the interval: when T_R 〉=T_RT, T_C≤T_CT, control system is judged air-conditioning unit or its primary module and the standby of submodule refrigerating state.
4. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, control system judge that air-conditioning unit or its primary module and submodule running heat the water running state;
When the air-conditioning unit in running:
Judge water tank temperature when the control system of air-conditioning unit or its primary module and submodule and reduce to the interval from hot water shutdown temperature T_RT: T_RK＜T_R＜T_RT, T_C≤T_CT, control system judges that air-conditioning unit or its primary module and submodule keep former holding state;
When the control system of air-conditioning unit or its primary module and submodule judges that water tank temperature rises to the interval from hot water turn-on temperature T_RK: T_RK＜T_R＜T_RT, T_C≤T_CT, control system judges that air-conditioning unit or its primary module and submodule heat water running.
5. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, if the start condition satisfies interval: T_R≤T_RK, T_C≤T_CT, the condition of hot water temperature T _ R≤T_RK, air-conditioning inflow temperature T_C≤T_CT when promptly starting shooting, control system judge that air-conditioning unit or its primary module and submodule operation heat water state;
When the air-conditioning unit in running:
Judge air-conditioning inflow temperature T_C and hot water temperature T _ R when the control system of air-conditioning unit or its primary module and submodule and be changed to the interval from other intervals: when T_R≤T_RK, T_C≤T_CT, control system is judged that air-conditioning unit or its primary module and submodule running status transfer to and is heated water running.
6. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_R 〉=T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton;
When the air-conditioning unit in running:
Judge air-conditioning water inlet water temperature when the control system of air-conditioning unit or its primary module and submodule and reduce to the interval from T_CK: when T_R 〉=T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating.
7. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
When the control system of air-conditioning unit or its primary module and submodule is judged from refrigeration recuperation of heat holding state interval: T_R 〉=T_RT, T_C≤T_CT reduce to the interval: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule refrigeration recuperation of heat state continue standby;
When control system judges that air-conditioning unit or its primary module and submodule are from heating water holding state interval: T_R 〉=T_RT, T_C≤T_CT reduce to the interval: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule heat water state and continue standby;
When control system judges that air-conditioning unit or its primary module and submodule are from refrigeration holding state interval: T_R 〉=T_RT, T_C≤T_CT reduce to the interval: when T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule refrigerating state continue standby;
Judge air-conditioning unit or its primary module and submodule air-conditioning water inlet water temperature when control system and reduce to the interval from T_RT from T_CK, water tank temperature: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating state;
Judge air-conditioning unit or its primary module and submodule water tank temperature when control system and rise to this interval: T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK from T_CT that control system judges that air-conditioning unit or its primary module and submodule operation heat water state from T_RK, air-conditioning water inlet water temperature;
When control system judges that air-conditioning unit or its primary module and submodule water tank temperature are when T_RK rises to interval T_RK＜T_R＜T_RT, and when air-conditioning water inlet water temperature when T_CK reduces to interval T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and the recuperation of heat of submodule running refrigerating.
8. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_R≤T_RK, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
The air-conditioning water inlet water temperature of judging air-conditioning unit or its primary module and submodule when control system rises to the interval from T_CT: T_R≤T_RK, and T_CT＜T_C＜T_CK, control system judges that air-conditioning unit or its primary module and submodule operation heat water state;
When the air-conditioning water inlet water temperature of control system judgement air-conditioning unit or its primary module and submodule is reduced to the interval from T_CK: T_R≤T_RK, T_CT＜T_C＜T_CK, control system is judged air-conditioning unit or its primary module and submodule running refrigerating recuperation of heat state.
9. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_R 〉=T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton;
When the air-conditioning unit in running:
Judge air-conditioning unit or its primary module and submodule when control system and be changed to the interval from other intervals: when T_R 〉=T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating operaton.
10. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
When the air-conditioning unit in running:
Judge air-conditioning unit or its primary module and submodule water tank temperature when control system and reduce to the interval from hot water shutdown temperature T_RT: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigerating state;
When air-conditioning unit or its primary module and submodule control system judge that water tank temperature rises to the interval from hot water turn-on temperature T_RK: T_RK＜T_R＜T_RT, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation.
11. air-conditioning unit as claimed in claim 1 or 2 refrigeration heat recovery mode intelligence control method is characterized in that: the air conditioner group selection enters standby or refrigeration or the automatic switchover condition of freezing recuperation of heat or heating the water running state includes:
When the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, interval if the start condition satisfies: T_R≤T_RK, T_C 〉=T_CK, control system is judged air-conditioning unit or its primary module and submodule refrigeration recuperation of heat operation;
In the running, when control system judges that air-conditioning unit or its primary module and submodule are when other intervals are changed to the interval: T_R≤T_RK, T_C 〉=T_CK, control system is judged the cold and hot recovery operation of air-conditioning unit or its primary module and the submodule transformation of ownership.
12. air-conditioning unit refrigeration heat recovery mode intelligence control method as claimed in claim 1 or 2 is characterized in that: comprise following concrete steps:
Step 1: when the air-conditioning unit powers on for the first time, under the refrigeration heat recovery mode, after start-up command is sent, air-conditioning water pump and hot water pump operation; If the start condition satisfies the condition of this interval: T_R 〉=T_RT, T_C≤T_CT, enter step 2;
Step 2: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and the hot water temperature reduces, and satisfies the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, enters step 3;
Step 3: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and air-conditioning water inlet water temperature improves, and satisfies the condition of T_RK＜T_R＜T_RT, T_CT＜T_C＜T_CK, enters step 4;
Step 4: control system is judged the standby of air-conditioning unit refrigeration recuperation of heat state, and the hot water temperature continues to reduce, and satisfies T_R≤T_RK, and the condition of T_CT＜T_C＜T_CK enters step 5;
Step 5: control system judges that the air-conditioning unit operation heats water state, and air-conditioning water inlet water temperature continues to improve, and satisfies the condition of T_R≤T_RK, T_C 〉=T_CK, enters step 6;
Step 6: control system is judged air-conditioning unit running refrigerating recuperation of heat state, and air-conditioning water inlet water temperature reduces, and satisfies T_R≤T_RK, and the condition of T_CT＜T_C＜T_CK enters step 7;
Step 7: control system is judged air-conditioning unit running refrigerating recuperation of heat state, and air-conditioning water inlet water temperature continues to reduce, and satisfies the condition of T_R≤T_RK, T_C≤T_CT, enters step 8;
Step 8: control system judges that the air-conditioning unit operation heats water state, and the hot water temperature raises, and satisfies the condition of T_RK＜T_R＜T_RT, T_C≤T_CT, enters step 9;
Step 9: control system judges that the air-conditioning unit operation heats water state, and the hot water temperature continues to raise, and satisfies the condition of T_R 〉=T_RT, T_C≤T_CT, enters step 10;
Step 10: control system judges that the air-conditioning unit operation heats the water holding state, and air-conditioning water inlet coolant-temperature gage raises, and satisfies the condition of T_R 〉=T_RT, T_CT＜T_C＜T_CK, enters step 11;
Step 11: control system judges that the air-conditioning unit operation heats the water holding state, and air-conditioning water inlet coolant-temperature gage continues to raise, and satisfies the condition of T_R 〉=T_RT, T_C 〉=T_CK, enters step 12;
Step 12: control system is judged air-conditioning unit running refrigerating state, and the hot water temperature reduces, and satisfies the condition of T_RK＜T_R＜T_RT, T_C 〉=T_CK, enters step 13;
Step 13: control system is judged air-conditioning unit running refrigerating state, and the hot water temperature continues to reduce, and satisfies the condition of T_R≤T_RK, T_C 〉=T_CK, enters step 14;
Step 14: control system is judged air-conditioning unit running refrigerating recuperation of heat state, enters the step 7 circulation.
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| CN 200910214479 CN102116515B (en) | 2009-12-31 | 2009-12-31 | Intelligent control method of refrigerating and heating recovery mode of air conditioning unit |
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| CN 200910214479 CN102116515B (en) | 2009-12-31 | 2009-12-31 | Intelligent control method of refrigerating and heating recovery mode of air conditioning unit |
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