CN104633988A - Air-cooled cold and hot water air conditioning system and control method thereof - Google Patents
Air-cooled cold and hot water air conditioning system and control method thereof Download PDFInfo
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- CN104633988A CN104633988A CN201510055938.8A CN201510055938A CN104633988A CN 104633988 A CN104633988 A CN 104633988A CN 201510055938 A CN201510055938 A CN 201510055938A CN 104633988 A CN104633988 A CN 104633988A
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- heat exchanger
- conditioning system
- hot water
- wind cooling
- cooling cold
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 238000004378 air conditioning Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 72
- 238000005057 refrigeration Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 4
- 238000013021 overheating Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air-cooled cold and hot water air conditioning system, which comprises a first heat exchanger and a second heat exchanger which are serially arranged in a circulating loop, wherein the first heat exchanger is a shell-and-tube heat exchanger, the second heat exchanger is a fin-type heat exchanger, a water loop of the first heat exchanger is provided with a water inlet and a water outlet, and a water pipe suitable for spraying the second heat exchanger is connected to the water inlet or the water outlet; the first heat exchanger is used as an evaporator, and the second heat exchanger is used as a condenser; or the first heat exchanger is used as a condenser and the second heat exchanger is used as an evaporator. The invention also provides a control method of the air-cooled cold and hot water air conditioning system. According to the air-cooled cold and hot water air conditioning system and the control method thereof, the water pipe is led from the water inlet or the water outlet of the first heat exchanger to spray the second heat exchanger, so that the refrigerating/heating capacity and the energy efficiency of the unit are improved, and the running reliability of the compressor is improved.
Description
Technical field
The present invention relates to air-conditioner technical field, particularly relate to a kind of wind cooling cold and hot water air-conditioning system and control method thereof.
Background technology
In cooling mode, because condenser side is air-cooled heat exchange, the lower heat transfer effect that causes of the coefficient of heat transfer is poor, makes the condensation temperature of condenser higher, and the refrigerating capacity, efficiency etc. of unit are lower for general air-cooled cold (heat) water unit.And in a heating mode, the very low easy frosting of temperature of unit evaporimeter, and the internal circulating load of refrigerant makes the cooling of compressor inadequate less, cause the delivery temperature of compressor higher, and oil overheating degree is on the low side, affects the reliability of compressor.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of wind cooling cold and hot water air-conditioning system and control method thereof, improve refrigerating/heating ability and the efficiency of unit, improve the reliability of compressor operating simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of wind cooling cold and hot water air-conditioning system, comprise the First Heat Exchanger and the second heat exchanger that are arranged in series in closed circuit, described First Heat Exchanger is shell and tube exchanger, described second heat exchanger is finned heat exchanger, the water loop of described First Heat Exchanger has water inlet and delivery port, and described water inlet or described delivery port also draw the water pipe being connected to and being applicable to spray described second heat exchanger;
Described First Heat Exchanger is as evaporimeter, and described second heat exchanger is as condenser; Or described First Heat Exchanger is as condenser, described second heat exchanger is as evaporimeter.
Wherein in an embodiment, described water pipe comprises the first paragraph water pipe and second segment water pipe that are interconnected;
Described first paragraph water pipe draws and connects described water inlet or described delivery port, and described second segment water pipe is placed in the top of described second heat exchanger, the tube wall of described second segment water pipe is provided with multiple apopore for spraying described second heat exchanger.
Wherein in an embodiment, multiple described apopore is evenly distributed on described second segment water pipe.
Wherein in an embodiment, the bottom of described second heat exchanger is provided with drip tray, and described drip tray is provided with drainpipe.
Wherein in an embodiment, described water pipe is also in series with electronic valve.
Present invention also offers a kind of control method of wind cooling cold and hot water air-conditioning system, for the wind cooling cold and hot water air-conditioning system described in above-mentioned, when described wind cooling cold and hot water air-conditioning system is in refrigeration mode, comprise the steps:
The environment temperature that after the compressor start of described wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is more than or equal to the first preset temperature, if so, then control electronic valve and open, second segment water pipe carries out spraying cooling to the second heat exchanger; If not, then described electronic valve is kept to be in closed condition.
Wherein in an embodiment, described electronic valve also comprises the steps: after opening
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is less than or equal to the second preset temperature, if so, then control described electronic valve and close; If not, then described electronic valve is kept to be in opening.
Wherein in an embodiment, also comprise the steps:
The compressor of described wind cooling cold and hot water air-conditioning system shuts down after certain hour, controls described electronic valve and is in closed condition.
The invention still further relates to a kind of control method of wind cooling cold and hot water air-conditioning system, for the wind cooling cold and hot water air-conditioning system described in above-mentioned, when described wind cooling cold and hot water air-conditioning system is in heating mode, comprise the steps:
The environment temperature that after the compressor start of described wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is less than or equal to the 3rd preset temperature, if so, then control electronic valve and open, second segment water pipe sprays the second heat exchanger; If not, then described electronic valve is kept to be in closed condition.
Wherein in an embodiment, described electronic valve also comprises the steps: after opening
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is more than or equal to the 4th preset temperature, if so, then control described electronic valve and close, if not, then keep described electronic valve to be in opening.
Wherein in an embodiment, also comprise the steps:
The compressor of described wind cooling cold and hot water air-conditioning system shuts down after certain hour, controls described electronic valve and is in closed condition.
The invention has the beneficial effects as follows:
Wind cooling cold and hot water air-conditioning system of the present invention and control method thereof, by drawing water receiving pipe from the water inlet of First Heat Exchanger or delivery port, the second heat exchanger is sprayed, when making this wind cooling cold and hot water air-conditioning system be in refrigeration mode, reduce the condensation temperature of the second heat exchanger thus improve refrigerating capacity and the efficiency of unit, when this wind cooling cold and hot water air-conditioning system is in heating mode, improve the evaporating temperature of the second heat exchanger, add the internal circulating load of system refrigerant, thus improve the reliability of compressor operating.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of wind cooling cold and hot water air-conditioning system one embodiment of the present invention;
Fig. 2 is the flow chart of control method one embodiment of wind cooling cold and hot water air-conditioning system of the present invention;
Fig. 3 is the flow chart of another embodiment of control method of wind cooling cold and hot water air-conditioning system of the present invention.
Detailed description of the invention
In order to make technical scheme of the present invention clearly, below in conjunction with accompanying drawing, wind cooling cold and hot water air-conditioning system of the present invention and control method thereof are described in further detail.Should be appreciated that specific embodiment described herein only in order to explain that the present invention is not intended to limit the present invention.
As shown in Figure 1, wind cooling cold and hot water air-conditioning system of the present invention comprises First Heat Exchanger 1, second heat exchanger 2 and water pipe 3.When this wind cooling cold and hot water air-conditioning system is in refrigeration mode, First Heat Exchanger 1 is as evaporimeter, and the second heat exchanger 2 is as condenser.When this wind cooling cold and hot water air-conditioning system is in heating mode, First Heat Exchanger 1 is as condenser, and the second heat exchanger 2 is as evaporimeter.In the present embodiment, First Heat Exchanger 1 is preferably shell and tube exchanger, and the second heat exchanger 2 is preferably finned heat exchanger.
The water loop of First Heat Exchanger 1 has water inlet and delivery port, and water inlet and delivery port also draw the water pipe 3 being connected to and being applicable to spray the second heat exchanger 2.In the present embodiment, water pipe 3 is connected to the water inlet of First Heat Exchanger 1.
Like this, when this wind cooling cold and hot water air-conditioning system is in refrigeration mode, First Heat Exchanger 1 is as evaporimeter, and in First Heat Exchanger 1, the temperature of water is lower, and the second heat exchanger 2 is as condenser, and the condensation temperature of the second heat exchanger 2 is higher.Therefore lower from the temperature of the water of the water inlet inflow water pipe 3 of First Heat Exchanger 1, by water pipe 3, second heat exchanger 2 is sprayed, the condensation temperature of the second heat exchanger 2 can be reduced, and then improve refrigerating capacity and the efficiency of this wind cooling cold and hot water air-conditioning system.
When this wind cooling cold and hot water air-conditioning system is in heating mode, First Heat Exchanger 1 is as condenser, and in First Heat Exchanger 1, the temperature of water is higher, and the second heat exchanger 2 is as evaporimeter, and because environment temperature is lower, therefore the evaporating temperature of the second heat exchanger 2 is lower.Now, the temperature flowing into the water of water pipe 3 from the water inlet of First Heat Exchanger 1 is higher, by water pipe 3, second heat exchanger 2 is sprayed, the second heat exchanger 2 frosting can be avoided, improve the evaporating temperature of the second heat exchanger 2, increase the cold medium flux of system, thus improve the oil overheating degree of unit, reduce power consumption and the pressure ratio of compressor, improve heating capacity and the efficiency of wind cooling cold and hot water air-conditioning system, improve the reliability of compressor operating simultaneously.
More preferably, this water pipe comprises the first paragraph water pipe 31 and second segment water pipe 32 that are interconnected, and in the present embodiment, first paragraph water pipe 31 and second segment water pipe 32 are formed in one, and namely water pipe 3 is one.The water inlet of the connection First Heat Exchanger 1 of first paragraph water pipe 31 or delivery port, namely one end of first paragraph water pipe 31 is communicated with water inlet or the delivery port of First Heat Exchanger 1, and the other end of first paragraph water pipe 31 is communicated with second segment water pipe 32.Second segment water pipe 32 is placed in the top of the second heat exchanger 2, and particularly, second segment water pipe 32 is placed between the air cooling section 5 of wind cooling cold and hot water air-conditioning system and the second heat exchanger 2.And the tube wall of second segment water pipe 32 is provided with multiple apopore being applicable to that the second heat exchanger 2 is sprayed, preferably, multiple apopore is evenly distributed on second segment water pipe 32, and the quantity of apopore, shape and distribution etc. thereof can also according to concrete implementation environment optimum selectings.
As further improvement, water pipe 3 is also serially connected with electronic valve 4, is namely in series with electronic valve 4 between first paragraph water pipe 31 and second segment water pipe 32.In the present embodiment, electronic valve 4 is preferably magnetic valve or electric expansion valve etc., and electronic valve 4 is connected to the master control borad of this wind cooling cold and hot water air-conditioning system, is controlled unlatching or the closedown of electronic valve 4 by master control borad, thus realizes the control to the second heat exchanger 2 spray.When electronic valve 4 is opened, first paragraph water pipe 31 is communicated with second segment water pipe 32, and second segment water pipe 32 sprays the second heat exchanger 2.When electronic valve 4 is closed, first paragraph water pipe 31 is not communicated with second segment water pipe 32, stops the spray to the second heat exchanger 2.
More preferably, the bottom of the second heat exchanger 2 drainpipe that is provided with drip tray and is communicated with drip tray.Second segment water pipe 32 sprays from top to bottom to the second heat exchanger 2, and then water instills in the drip tray below the second heat exchanger 2 under gravity, and drip tray serves the effect of water storage.Then, by the drainpipe be communicated with drip tray, the water in drip tray is drained, recycle again after water cools naturally, economize energy.It should be understood that wind cooling cold and hot water air-conditioning system of the present invention also comprises the necessary parts such as compressor, repeat no more herein.
As shown in Figure 2, present invention also offers a kind of control method of wind cooling cold and hot water air-conditioning system, for above-mentioned wind cooling cold and hot water air-conditioning system, when wind cooling cold and hot water air-conditioning system is in refrigeration mode, comprise the steps:
The environment temperature that after the compressor start of wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that defrost temperature-sensitive bag detects is more than or equal to the first preset temperature, if so, then control electronic valve 4 and open, second segment water pipe 32 carries out spraying cooling to the second heat exchanger 2; If not, then electronic valve 4 is kept to be in closed condition.Like this, when the condensation temperature of the second heat exchanger 2 higher (higher than the first preset temperature), unlocking electronic valve 4, sprays the condensation temperature reducing the second heat exchanger 2 to the second heat exchanger 2 by second segment water pipe 32.When the condensation temperature of the second heat exchanger 2 is lower than the first preset temperature, the closed condition of electronic valve 4 can be kept, spray operation not carried out to the second heat exchanger 2.In the present embodiment, the first preset temperature is preferably 40 DEG C ± 1 DEG C.
More preferably, electronic valve also comprises the steps: after opening
Judge whether the environment temperature that defrost temperature-sensitive bag detects is less than or equal to the second preset temperature, if so, then control electronic valve 4 and close; If not, then electronic valve 4 is kept to be in opening.Namely, when the environment temperature detected when defrost temperature-sensitive bag is less than or equal to the second preset temperature, closes electronic valve 4, stop spraying the second heat exchanger 2, in order to avoid cause the evaporating temperature of the second heat exchanger 2 too low after spray, easily freezing second heat exchanger 2.When the environment temperature that defrost temperature-sensitive bag detects is between the second preset temperature and the first preset temperature, still keeps electronic valve 4 to open, continue to spray the second heat exchanger 2, until the temperature of the second heat exchanger 2 is reduced to the second preset temperature.In the present embodiment, the second preset temperature is preferably 35 DEG C ± 1 DEG C.
When wind cooling cold and hot water air-conditioning system is in refrigeration mode, also comprise the steps: that the compressor of wind cooling cold and hot water air-conditioning system shuts down after certain hour, control electronic valve 4 and be in closed condition.In the present embodiment, this certain hour is preferably 5 seconds.Namely when compressor is after 5 seconds out of service, no matter whether electronic valve 4 is opened, all should ensure the closed condition of electronic valve 4, stop spraying the second heat exchanger 2, when can prevent water pump from shutting down like this, outside air enters water system.
As shown in Figure 3, the invention still further relates to a kind of control method of wind cooling cold and hot water air-conditioning system, for above-mentioned wind cooling cold and hot water air-conditioning system, when wind cooling cold and hot water air-conditioning system is in heating mode, comprise the steps:
The environment temperature that after the compressor start of wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that defrost temperature-sensitive bag detects is less than or equal to the 3rd preset temperature, if so, then control electronic valve 4 and open, second segment water pipe 32 sprays the second heat exchanger 2; If not, then electronic valve 4 is kept to be in closed condition.Namely when the environment temperature that defrost temperature-sensitive bag detects lower (lower than the 3rd preset temperature), the evaporating temperature of the second heat exchanger 2 is also lower, and the temperature of the water of drawing from First Heat Exchanger 1 is higher, now the second heat exchanger 2 is sprayed, the second heat exchanger 2 frosting can be avoided to cause unit delivery temperature higher, thus improve the reliability of compressor.Meanwhile, by spraying the second heat exchanger 2, the evaporating temperature of the second heat exchanger 2 can be improved, the refrigerant circulation of increase system, thus improve unit oil overheating degree, reduce power consumption and the pressure ratio of compressor, improve heating capacity and the efficiency of wind cooling cold and hot water air-conditioning system.In the present embodiment, the 3rd preset temperature is preferably 3 DEG C ± 1 DEG C.
More preferably, electronic valve 4 also comprises the steps: after opening
Judge whether the environment temperature that defrost temperature-sensitive bag detects is more than or equal to the 4th preset temperature, if so, then control electronic valve 4 and close, if not, then keep electronic valve 4 to be in opening.When the environment temperature that defrost temperature-sensitive bag detects is more than or equal to the 4th preset temperature, closes electronic valve 4, stop spraying the second heat exchanger 2.When the environment temperature that defrost temperature-sensitive bag detects is between the 3rd preset temperature and the 4th preset temperature, keep the opening of electronic valve 4, until the temperature of the second heat exchanger 2 reaches the 3rd preset temperature.In the present embodiment, the 4th preset temperature is preferably 5 DEG C ± 1 DEG C.
When wind cooling cold and hot water air-conditioning system is in heating mode, also comprise the steps: that the compressor of wind cooling cold and hot water air-conditioning system shuts down after certain hour, control electronic valve 4 and be in closed condition.In the present embodiment, this certain hour is preferably 5 seconds, namely when compressor is after 5 seconds out of service, no matter whether electronic valve 4 is opened, all should ensure that electronic valve 4 is in closed condition, stop spraying the second heat exchanger 2, when can prevent water pump from shutting down like this, outside air enters water system.
Wind cooling cold and hot water air-conditioning system of the present invention and control method thereof, by drawing water receiving pipe from the water inlet of First Heat Exchanger or delivery port, the second heat exchanger is sprayed, when making this wind cooling cold and hot water air-conditioning system be in refrigeration mode, reduce the condensation temperature of the second heat exchanger thus improve refrigerating capacity and the efficiency of unit, when this wind cooling cold and hot water air-conditioning system is in heating mode, improve the evaporating temperature of the second heat exchanger, add the internal circulating load of system refrigerant, thus improve the reliability of compressor operating.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. a wind cooling cold and hot water air-conditioning system, it is characterized in that, comprise the First Heat Exchanger (1) and the second heat exchanger (2) that are arranged in series in closed circuit, described First Heat Exchanger (1) is shell and tube exchanger, described second heat exchanger (2) is finned heat exchanger, the water loop of described First Heat Exchanger (1) has water inlet and delivery port, and described water inlet or described delivery port also draw the water pipe (3) being connected to and being applicable to spray described second heat exchanger (2);
Described First Heat Exchanger (1) is as evaporimeter, and described second heat exchanger (2) is as condenser; Or described First Heat Exchanger (1) is as condenser, described second heat exchanger (2) is as evaporimeter.
2. wind cooling cold and hot water air-conditioning system according to claim 1, is characterized in that, described water pipe (3) comprises the first paragraph water pipe (31) and second segment water pipe (32) that are interconnected;
Described first paragraph water pipe (31) is drawn and is connect described water inlet or described delivery port, described second segment water pipe (32) is placed in the top of described second heat exchanger (2), the tube wall of described second segment water pipe (32) is provided with multiple apopore for spraying described second heat exchanger (2).
3. wind cooling cold and hot water air-conditioning system according to claim 2, is characterized in that, multiple described apopore is evenly distributed on described second segment water pipe (32).
4. wind cooling cold and hot water air-conditioning system according to claim 1, its feature is being, the bottom of described second heat exchanger (2) is provided with drip tray, and described drip tray is provided with drainpipe.
5. the wind cooling cold and hot water air-conditioning system according to any one of claim 1-4, is characterized in that, described water pipe (3) is also in series with electronic valve (4).
6. a control method for wind cooling cold and hot water air-conditioning system, for wind cooling cold and hot water air-conditioning system according to claim 5, is characterized in that, when described wind cooling cold and hot water air-conditioning system is in refrigeration mode, comprises the steps:
The environment temperature that after the compressor start of described wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is more than or equal to the first preset temperature, if so, then control electronic valve (4) and open, second segment water pipe (32) carries out spraying cooling to the second heat exchanger (2); If not, then described electronic valve (4) is kept to be in closed condition.
7. the control method of wind cooling cold and hot water air-conditioning system according to claim 6, is characterized in that, described electronic valve (4) also comprises the steps: after opening
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is less than or equal to the second preset temperature, if so, then control described electronic valve (4) and close; If not, then described electronic valve (4) is kept to be in opening.
8. the control method of wind cooling cold and hot water air-conditioning system according to claim 6, is characterized in that, also comprise the steps:
The compressor of described wind cooling cold and hot water air-conditioning system shuts down after certain hour, controls described electronic valve (4) and is in closed condition.
9. a control method for wind cooling cold and hot water air-conditioning system, for wind cooling cold and hot water air-conditioning system according to claim 5, is characterized in that, when described wind cooling cold and hot water air-conditioning system is in heating mode, comprises the steps:
The environment temperature that after the compressor start of described wind cooling cold and hot water air-conditioning system, Real-time Obtaining defrost temperature-sensitive bag detects;
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is less than or equal to the 3rd preset temperature, if so, then control electronic valve (4) and open, second segment water pipe (32) sprays the second heat exchanger (2); If not, then described electronic valve (4) is kept to be in closed condition.
10. the control method of wind cooling cold and hot water air-conditioning system according to claim 9, is characterized in that, described electronic valve also comprises the steps: after opening
Judge whether the environment temperature that described defrost temperature-sensitive bag detects is more than or equal to the 4th preset temperature, if so, then control described electronic valve (4) and close, if not, then keep described electronic valve (4) to be in opening.
The control method of 11. wind cooling cold and hot water air-conditioning systems according to claim 9, is characterized in that, also comprise the steps:
The compressor of described wind cooling cold and hot water air-conditioning system shuts down after certain hour, controls described electronic valve (4) and is in closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510055938.8A CN104633988A (en) | 2015-02-03 | 2015-02-03 | Air-cooled cold and hot water air conditioning system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510055938.8A CN104633988A (en) | 2015-02-03 | 2015-02-03 | Air-cooled cold and hot water air conditioning system and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105674644A (en) * | 2016-03-28 | 2016-06-15 | 珠海格力电器股份有限公司 | Air conditioner and defrosting method thereof |
| CN106958968A (en) * | 2017-04-17 | 2017-07-18 | 珠海格力电器股份有限公司 | Oil return control method, device and system for unit |
| CN107388445A (en) * | 2017-07-19 | 2017-11-24 | 广东美的制冷设备有限公司 | Mobile air conditioner and its control method, control device and control system |
| CN110319630A (en) * | 2019-07-01 | 2019-10-11 | 宁波奥克斯电气股份有限公司 | A kind of spraying control method thereof, control system and air conditioner |
| CN110617557A (en) * | 2019-09-20 | 2019-12-27 | 依米康科技集团股份有限公司 | Automatic spraying control system and control method |
| CN113251566A (en) * | 2021-06-08 | 2021-08-13 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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