CN102927717A - Year-round air conditioning ventilation coupling system and method - Google Patents
Year-round air conditioning ventilation coupling system and method Download PDFInfo
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- CN102927717A CN102927717A CN2012103398384A CN201210339838A CN102927717A CN 102927717 A CN102927717 A CN 102927717A CN 2012103398384 A CN2012103398384 A CN 2012103398384A CN 201210339838 A CN201210339838 A CN 201210339838A CN 102927717 A CN102927717 A CN 102927717A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a year-round air conditioning ventilation coupling system and method. The year-round air conditioning ventilation coupling system comprises a cooling module, a heating module and a mechanical ventilation module. According to the coupling system, an upper limit switching temperature and a lower limit switching temperature are seat. When the external temperature is higher than the upper limit switching temperature, the cooling module is executed. When the external temperature is lower than the lower limit switching temperature, the heating module is executed. When the external temperature lies between the upper limit switching temperature and the lower limit switching temperature, the mechanical ventilation module is executed. For a designed object, the year-round air conditioning ventilation coupling system and method can use natural energy sources to supply cold to a room in the transition season or even in winter so as to realize switching between the transition season and the winter-summer air-conditioning season, and therefore, the operation cost of a cold water unit and the like can be saved, and the air quality can be improved greatly by using a summer air duct system to filter fresh air by a filter in an air conditioning box, thereby fully reducing the year-around air conditioning energy consumption.
Description
Technical field
The present invention relates to a kind of air-conditioning heat-exchange system, particularly a kind of annual air conditioner ventilation coupled system and method.
Background technology
Along with the progress of human technology, increasing building, the employing large-scale centralized air-conditioning systems such as factory building are carried out indoor heat exchange.Some zones in the large building of internal calorific power are such as the place such as between communication apparatus room, stand-by power supply, even still need in the winter time cooling.In the prior art, handpiece Water Chilling Units general or that employing is conventional adds cooling water system.This just brings following problem:
1. winter, the refrigerator load was less, and 30% of not enough separate unit refrigerator refrigeration content wastes energy;
2. low load running easily causes the refrigerator fault.Can only artificially strengthen refrigeration duty by operating personnel's conditioning equipment, guarantee that refrigerator normally moves.
Those skilled in the art develops urgently a kind of system that comparatively saves the energy and solves the problems referred to above.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome in the prior art, and equipment loss was large when heavy construction was carried out heat exchange with summer in the winter time, and the deficiency that energy waste is many provides a kind of annual air conditioner ventilation coupled system and method.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of annual air conditioner ventilation coupled system, comprise a refrigeration module, a heating module and a force ventilation module, its characteristics are, described coupled system is set a upper limit switching temperature and a lower limit switching temperature, when ambient temperature is higher than upper limit switching temperature, carry out described refrigeration module; When ambient temperature is lower than the lower limit switching temperature, carry out described heating module; When ambient temperature is between upper limit switching temperature and lower limit switching temperature, carry out described force ventilation module.
Preferably, described upper limit switching temperature and lower limit switching temperature are refrigeration load and heat load and outdoor temperature and load by the BIN method and calculate in the system.Wherein, the BIN method is the state of the art, does not repeat them here.
Preferably, described coupled system in the winter time the time by described force ventilation module to a specific region cooling.
Preferably, described coupled system when summer by described force ventilation module to a specific region heat supply.
Preferably, described heating module and refrigeration module are same Climate Control Module.
Preferably, described force ventilation module arranges an air-conditioning box filter.
A kind of annual air conditioner ventilation coupling process, its characteristics are, set a upper limit switching temperature and a lower limit switching temperature, in the time of in the winter time, when outdoor temperature is lower than the lower limit switching temperature, use heating system to carry out indoor heat exchange; When summer, when outdoor temperature is higher than upper limit switching temperature, use refrigeration system to carry out indoor heat exchange; When spring and autumn, when outdoor temperature between upper limit switching temperature and lower limit switching temperature, use mechanical ventilation system to carry out heat exchange.
Preferably, described upper limit switching temperature and lower limit switching temperature are refrigeration load and heat load and outdoor temperature and load by the BIN method and calculate in the system.
On the basis that meets this area general knowledge, above-mentioned each optimum condition, but any combination namely get the preferred embodiments of the invention.
Positive progressive effect of the present invention is: annual air conditioner ventilation coupled system and method to design object at transition season and even all adopt natural energy resources (outdoor air) cooling in the above-mentioned room winter, thereby realize conditioning in Transition Season and the switching in air-conditioning season summer in winter, not only can save the equipment such as handpiece Water Chilling Units owing to stopping the operating cost of saving, and owing to utilizing the ducting system in summer, new wind is through the filtration of air-conditioning box filter, so that air quality improves greatly, fully save the purpose of annual air conditioning energy consumption.
Description of drawings
Fig. 1 is the designing and calculating flow chart of the air conditioner ventilation coupled system under specific embodiment of the present invention.
Fig. 2 is the temperature switch logic flow chart of the air conditioner ventilation coupled system under specific embodiment of the present invention.
Fig. 3 is that the annual temperature of the air conditioner ventilation coupled system under specific embodiment of the present invention is switched schematic diagram.
The specific embodiment
Embodiments of the invention describe with reference to the accompanying drawings.In Figure of description, the element with similar structures or function will represent with identical component symbol.Accompanying drawing is each embodiment of the present invention for convenience of explanation just, is not to carry out to the present invention the explanation of exhaustive, neither limit scope of the present invention.
In general, by summer to transition season this period, when outdoor temperature reduces gradually, indoor refrigeration duty reduces gradually, if ventilate to indoor enforcement this moment, its ventilation heat will increase gradually, when refrigeration duty equates with heat exhaust, indoorly just can maintain on certain temperature levels.When heat exhaust during greater than indoor load, room temperature descends, otherwise room temperature rises.
If allow room temperature to change (such as 19～26 ℃) in a certain temperature section, and to define indoor outdoor temperature when being in lower limit room temperature (such as 19 ℃) be the switching temperature t of the hot air-conditioning of start and stop
Wh, also can claim the lower limit switching temperature; Defining simultaneously the indoor outdoor temperature that is in when allowing upper limit room temperature (such as 26 ℃) is the switching temperature t of the cold air-conditioning of start and stop
Wc, also can deserve to be called the limit switching temperature.According to definition, when outdoor temperature is in t
Wh～t
WcThe time, room temperature just can be utilized to ventilate and maintain in the allowed band, and can utilize outdoor natural cold quantity decontamination chamber internal loading this moment fully, and its energy saving is apparent.When outdoor temperature is lower than t
WhOr be higher than t
WcThe time, then can open respectively hot air-conditioning and cold air-conditioning to keep required room temperature.
The ventilation heat except with out door climatic parameter, indoor design condition relating to parameters, also closely related with ventilation, ventilation is larger, heat exhaust is also just larger, thereby it is also just longer to keep the transition season of room temperature by ventilation.For the building that adopts central air-conditioning system, air conditioning duct system by summer design conditions determine, transition season can utilize the summer air-conditioning ducting system, adopts the mode of force ventilation, sends into outdoor new wind to indoor.Compare with gravity-flow ventilation, adopt the force ventilation mode large to the indoor resh air requirement that provides, can greatly improve heat exhaust, fully prolong the transition season period, further shorten the air-conditioning available machine time, easily transfer because ventilation is stable, so that the ventilation air quantity can be regulated as required, simultaneously, also can utilize air channel filtration system raising to the new wind air quality of indoor conveying.
Fig. 1 shows the room load of the air conditioner ventilation coupled system under specific embodiment of the present invention and the relation between the outdoor temperature.Wherein,
CLQ＝a
tw＋b （2-1）
In the formula,
CLQ---space cooling load (kW);
A, b---coefficient calculates gained by BIN method load, and is relevant with room temperature;
t
w---outside air temperature (℃).
The ventilation heat can be expressed as form:
Q
p＝G
s×(i
n－i
w) （2-2）
In the formula,
Q
p---heat exhaust (kW);
G
s---ventilation, i.e. summer air-conditioning design air flow (kg/s);
i
w, i
n---be respectively outdoor, room air enthalpy (kJ/kg);
Wherein indoor enthalpy can require according to the indoor temperature and humidity in corresponding room to determine; Outdoor enthalpy can calculate acquisition according to the outdoor enthalpy in local area and outdoor dry-bulb temperature monodrome change calculations formula.Take District of Shanghai as example:
Shanghai i
w=-0.0012t
w 3+ 0.0715t
w 2+ 1.3382t
w+ 5.77 (2-3)
Following formula is to carry out curve fitting according to the outdoor enthalpy under annual each the dry-bulb temperature correspondence of District of Shanghai to obtain.
Can get according to above-mentioned establishing equation: t when load equates with heat extraction
nWith t
wOne-to-one relationship.
With indoor design temperature t
N1The substitution equation can get t
WhWith Summer Indoor design temperature t
N2The substitution equation can get t
Wc
In one embodiment, define indoor design temperature t in winter
N1(19 ℃) are lower limit temperature, Summer Indoor design temperature t
N2(26 ℃) are ceiling temperature.Allow indoor temperature 19 ℃ of-26 ℃ of fluctuations.Those skilled in the art will appreciate that t
N1And t
N2Can set up on their own according to concrete operating mode, concrete numerical value can be adjusted according to the different of local humidity, habits and customs and day and night temperature.
t
N1---winter the indoor design temperature
t
N2---the Summer Indoor design temperature
t
Wh---the outdoor temperature (calculating) when indoor temperature is in 19 ℃ of lower limit temperatures
t
Wc---the outdoor temperature (calculating) when indoor temperature is in 26 ℃ of ceiling temperatures
t
W1---winter outdoor temperature
t
W2---summer outdoor temperature
Fig. 2 shows the temperature switch logic flow chart of the air conditioner ventilation coupled system under specific embodiment of the present invention.By flow process among the figure as can be known, in the time of in the winter time, with t
W1With t
WhCompare, work as t
W1〉=t
WhThe time, by the force ventilation module system is carried out heat exchange; Work as t
W1＜t
WhThe time, use for thermal modules building is carried out heat supply, in heat supplying process, some specific region in the building may still need cooling, only needs to use the force ventilation module that heat exchange is carried out in this specific region this moment and gets final product.
Equally, when summer, with t
W2With t
WcCompare, work as t
W2﹥ t
WcThe time, by refrigeration module building is carried out heat exchange; Work as t
W2≤ t
WcThe time, use the force ventilation module that building is carried out heat exchange, in the cooling process, some specific region in the building may still need higher temperature, only needs to use the force ventilation module that heat exchange is carried out in this specific region this moment and gets final product.
It will be appreciated by those skilled in the art that, indoor and outdoors respectively the set temperature sensor carry out temperature relatively, judge and trigger the operation of air conditioner switch of correspondence by the signal of temperature sensor transmission, this is the technology that industry is known, and no longer too much gives unnecessary details here.
Fig. 3 is that the annual temperature of air conditioner ventilation coupled system is switched schematic diagram.By can clearly be seen that among the figure, air-conditioning system is in the force ventilation state in the time of spring and autumn major part, and this just greatly reduces air conditioner energy consumption, has avoided equipment loss.
In one embodiment, utilize design air flow in summer new wind outside indoor conveying chamber indoor required new wind requirement, therefore definite lower limit switching temperature t of exceeding general far away
WhThe time, can by reducing ventilation to reduce the heat to outdoor eliminating, reach reduction lower limit switching temperature t
WhPurpose, elongate the transition season period, further reduce annual energy consumption.The air-conditioning box filter is set in the force ventilation module, and outdoor like this natural wind so that air quality improves greatly, is fully saved the purpose of annual air conditioning energy consumption through the filtration of air-conditioning box filter.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art can make various changes or modifications to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (8)
1. annual air conditioner ventilation coupled system, comprise a refrigeration module, a heating module and a force ventilation module, it is characterized in that, described coupled system is set a upper limit switching temperature and a lower limit switching temperature, when ambient temperature is higher than upper limit switching temperature, carry out described refrigeration module; When ambient temperature is lower than the lower limit switching temperature, carry out described heating module; When ambient temperature is between upper limit switching temperature and lower limit switching temperature, carry out described force ventilation module.
2. annual air conditioner ventilation coupled system as claimed in claim 1 is characterized in that, described upper limit switching temperature and lower limit switching temperature are refrigeration load and heat load and outdoor temperature and load by the BIN method and calculate in the system.
3. annual air conditioner ventilation coupled system as claimed in claim 1 is characterized in that, described coupled system in the winter time the time by described force ventilation module to a specific region cooling.
4. annual air conditioner ventilation coupled system as claimed in claim 1 is characterized in that, described coupled system when summer by described force ventilation module to a specific region heat supply.
5. such as each described annual air conditioner ventilation coupled system of claim 1 to 4, it is characterized in that, described heating module and refrigeration module are same Climate Control Module.
6. such as each described annual air conditioner ventilation coupled system of claim 1 to 4, it is characterized in that, described force ventilation module arranges an air-conditioning box filter.
7. an annual air conditioner ventilation coupling process is characterized in that, sets a upper limit switching temperature and a lower limit switching temperature, in the time of in the winter time, when outdoor temperature is lower than the lower limit switching temperature, uses heating system to carry out indoor heat exchange; When summer, when outdoor temperature is higher than upper limit switching temperature, use refrigeration system to carry out indoor heat exchange; When spring and autumn, when outdoor temperature between upper limit switching temperature and lower limit switching temperature, use mechanical ventilation system to carry out heat exchange.
8. annual air conditioner ventilation coupling process as claimed in claim 7 is characterized in that, described upper limit switching temperature and lower limit switching temperature are refrigeration load and heat load and outdoor temperature and load by the BIN method and calculate in the system.
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Cited By (9)
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| CN107421054A (en) * | 2017-04-10 | 2017-12-01 | 广东申菱环境系统股份有限公司 | A kind of control method of modularization aircraft floor air conditioner group |
| CN107461821A (en) * | 2017-09-30 | 2017-12-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN107477815A (en) * | 2017-09-30 | 2017-12-15 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN107490208A (en) * | 2017-09-04 | 2017-12-19 | 广东芬尼克兹节能设备有限公司 | The refrigerant recovering control system and its control method of a kind of source pump |
| CN107543279A (en) * | 2016-06-27 | 2018-01-05 | 其峰科技有限公司 | Air-conditioning equipment control method and device |
| CN107642878A (en) * | 2017-09-30 | 2018-01-30 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN109827303A (en) * | 2019-03-01 | 2019-05-31 | 奥克斯空调股份有限公司 | A kind of temperature control method, device and server |
| CN111788435A (en) * | 2018-02-28 | 2020-10-16 | 三星电子株式会社 | Composite control device and method in air conditioning system |
| CN112797571A (en) * | 2021-01-26 | 2021-05-14 | 吴祥初 | Intelligent fresh air system and control method thereof |
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| CN107543279A (en) * | 2016-06-27 | 2018-01-05 | 其峰科技有限公司 | Air-conditioning equipment control method and device |
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| CN107421054A (en) * | 2017-04-10 | 2017-12-01 | 广东申菱环境系统股份有限公司 | A kind of control method of modularization aircraft floor air conditioner group |
| CN107490208A (en) * | 2017-09-04 | 2017-12-19 | 广东芬尼克兹节能设备有限公司 | The refrigerant recovering control system and its control method of a kind of source pump |
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| CN107461821A (en) * | 2017-09-30 | 2017-12-12 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN107477815A (en) * | 2017-09-30 | 2017-12-15 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN107642878A (en) * | 2017-09-30 | 2018-01-30 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN111788435A (en) * | 2018-02-28 | 2020-10-16 | 三星电子株式会社 | Composite control device and method in air conditioning system |
| CN111788435B (en) * | 2018-02-28 | 2022-07-19 | 三星电子株式会社 | Composite control device and method in air conditioning system |
| CN109827303A (en) * | 2019-03-01 | 2019-05-31 | 奥克斯空调股份有限公司 | A kind of temperature control method, device and server |
| CN112797571A (en) * | 2021-01-26 | 2021-05-14 | 吴祥初 | Intelligent fresh air system and control method thereof |
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Application publication date: 20130213 |