CN111096250B - Air conditioner and biological environment centralized control method and system thereof - Google Patents
Air conditioner and biological environment centralized control method and system thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004378 air conditioning Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims description 56
- 239000007921 spray Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 3
- 241000287828 Gallus gallus Species 0.000 abstract description 43
- 244000144992 flock Species 0.000 abstract description 22
- 235000013330 chicken meat Nutrition 0.000 description 41
- 238000001514 detection method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000017448 oviposition Effects 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0052—Arrangement of fans or blowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0076—Arrangement of heaters or heat exchangers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0082—Water misting or cooling systems
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Botany (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air conditioner and a method and a system for centralized control of biological environment thereof, wherein the method comprises the steps of detecting indoor and outdoor temperature; and controlling the air conditioning unit and the water spraying chamber to work according to the relation between the indoor temperature and the outdoor temperature and the preset indoor temperature, wherein the preset indoor temperature is changed according to the biological growth cycle. Because the preset indoor temperature changes along with the growth cycle of organisms, the growth cycle of the chicken flocks is matched with the preset indoor temperature, and therefore the normal growth of the chicken flocks is ensured.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a method and a system for centralized control of biological environment of the air conditioner.
Background
In prior art, the chicken coop mainly adopts wet curtain fan cooling system to cool down to it, and wet curtain fan cooling system includes wet curtain and fan, and wet curtain and fan set up respectively in the both sides of chicken coop, and the air in the chicken coop passes through the fan and discharges, and outdoor air passes through in wet curtain evaporation cooling back gets into the chicken coop, therefore the cooling effect is limited. Because the cooling effect of wet curtain fan cooling system is limited, in case indoor temperature surpasses the temperature threshold value, will unable reduce to the chicken coop and predetermine indoor temperature to influence the growth of chicken crowd. Because wet curtain sets up in chicken coop one side, it is obvious to close on the cooling effect of wet curtain one side, and keeps away from the cooling effect of wet curtain one side unobvious, leads to the cooling inhomogeneous.
At present, an air conditioner unit is adopted to cool the henhouse, so that the problems of limited and uneven cooling effect are solved. However, the current air conditioning unit system and the henhouse environmental control system are independent from each other, and the requirement of the chicken flocks on the environmental temperature changes every day, so that the problem of poor matching between the growth of the chicken flocks and the preset indoor temperature exists, and the normal growth of the chicken flocks is influenced.
Disclosure of Invention
The invention mainly aims to provide an air conditioner and a biological environment centralized control method and system thereof, and aims to solve the technical problems that in the prior art, the existing air conditioning unit system and a henhouse environmental control system are independent, the requirement of a chicken flock on the environmental temperature changes every day, and the growth of the chicken flock and the environmental temperature have poor matching performance.
A method for centralized control of biological environment, comprising: detecting indoor and outdoor temperatures; and controlling the air conditioning unit and the water spraying chamber to work according to the relation between the indoor temperature and the outdoor temperature and the preset indoor temperature, wherein the preset indoor temperature is changed according to the biological growth cycle.
Wherein, according to indoor outer temperature and predetermine indoor temperature's relation control air conditioning unit and spray chamber work and include: calculating the difference value between the outdoor temperature and the preset indoor temperature, wherein the formula is as follows:
△T=tw-T
where Δ T is the difference, TwIs the outdoor temperature, T is the preset indoor temperature, TnIs the indoor temperature; when Δ T<0 and tnWhen the temperature is less than or equal to T, heating the indoor space; when Δ T<0 and tn>When T is reached, the indoor temperature is reduced; when the delta T is more than or equal to 0, the indoor temperature is reduced.
Wherein, when Δ T<0 and tnWhen T is less than or equal to T, the indoor temperature rise treatment comprises the following steps: and starting the air conditioning unit to heat and raise the temperature.
Wherein, when Δ T<0 and tn>During T, to indoor cooling treatment including: opening the whole fresh air to cool the fresh air; when the fresh air cooling cannot reach the preset indoor temperature, simultaneously starting a water spraying chamber to carry out spray cooling; when the spray cooling can not reach the preset indoor temperature, the opening degree of the fresh air valve is reduced to the preset opening degree, the opening degree of the return air valve is increased to the preset opening degree, the water spraying chamber is closed, and the air conditioning unit is started to refrigerate and cool.
When the delta T is more than or equal to 0, the indoor cooling treatment comprises the following steps: starting a water spraying chamber for spraying and cooling; when the spray cooling can not reach the preset indoor temperature, the opening degree of the fresh air valve is reduced to the preset opening degree, the opening degree of the return air valve is increased to the preset opening degree, the water spraying chamber is closed, and the air conditioning unit is started to refrigerate and cool.
And the working load of the air conditioning unit is adjusted according to the prejudgment result.
Wherein the method further comprises: and controlling the running frequency of the exhaust fan according to the pressure difference.
Wherein the method further comprises: according to CO2The concentration difference value controls the opening of the fresh air valve.
A biological environment centralized control system comprises a water spraying chamber, an air conditioning unit and a controller, wherein the controller controls the air conditioning unit and the water spraying chamber to work by adopting the method.
An air conditioner adopts the method.
According to the air conditioner and the biological environment centralized control method and system thereof, the air conditioning unit and the water spraying chamber are controlled to work by detecting the indoor and outdoor temperatures and according to the relation between the indoor and outdoor temperatures and the preset indoor temperature. Because the preset indoor temperature changes along with the growth cycle of organisms, the growth cycle of the chicken flocks is matched with the preset indoor temperature, and therefore the normal growth of the chicken flocks is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a biological environment centralized control system of the present invention.
FIG. 2 is a flow chart of the centralized control method of biological environment of the present invention.
Fig. 3 is a flow chart of the steps of controlling the indoor temperature according to the present invention.
FIG. 4 is a flow chart of the differential pressure control steps of the present invention.
FIG. 5 is a CO of the present invention2Control of concentration differenceA flow chart of the steps.
FIG. 6 is another flow chart of the centralized control method for biological environment of the present invention.
10. A biological environment centralized control system; 1. a water spraying chamber; 21. a fresh air valve; 22. a return air valve; 23. an air supply valve; 24. a fan; 3. a temperature sensor; 4. CO 22A concentration sensor; 5. a pressure sensor; 6. an exhaust fan.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It can be understood that the temperature has a large influence on the growth of the chickens, the resistance of the chickens is poor in the brooding period, the requirement on the temperature is high, and the proper temperature can ensure the normal growth of the chickens in the brooding period and the egg laying period. If the temperature is higher, the feed intake of the chickens is reduced, the feed conversion rate is reduced, the weight gain of the chickens is reduced, the egg weight of the layers is reduced, the eggshell quality is reduced, the laying rate is reduced, and the death and culling rate is increased until a large number of chickens die due to heat. If the temperature is lower, the growth of the chickens is slow, the feed egg ratio and the feed meat ratio are increased, and the low temperature and the temperature fluctuation in the chicken house are too large in winter, so that the resistance of the chickens is reduced, the egg laying is reduced, and respiratory tract diseases of chicken groups are induced until moulting and stopping the laying.
As shown in fig. 1, a centralized biological environment control system 10 is provided, which includes a spray chamber 1, an air conditioning unit, and a controller (not shown) that controls the air conditioning unit and the spray chamber 1 to operate by using a centralized biological environment control method.
In this embodiment, the air conditioning unit includes a fresh air valve 21, a return air valve 22, a supply air valve 23, a blower 24, and a pipeline communicating the fresh air valve 21, the return air valve 22, the supply air valve 23, and the blower 24.
In this embodiment, the controller is a DDC processor. It will be appreciated that in alternative embodiments, the controller may be a PLC or other processor.
In this embodiment, four temperature sensors 3, one CO, are provided indoors2A concentration sensor 4, a pressure sensor 5. The four temperature sensors 3 are respectively arranged on the fresh air side, the front side, the middle side and the rear side of the room, and the four temperature sensors 3 detect the indoor temperature from all angles, so that the detection accuracy is improved.
In this embodiment, the system further includes an exhaust fan 6 for detecting the indoor pressure by the pressure sensor 5, and the controller controls the operation frequency of the exhaust fan 6 according to the detected indoor pressure.
In this example, CO is passed2Concentration sensor 4 detects indoor CO2Concentration, controller based on detected CO2The opening of the fresh air damper 21 is controlled by the concentration.
In this example, the organism is a chicken. It will be appreciated that in alternative embodiments, the organism is not limited to chickens, but may be other animals or plants.
As shown in fig. 2, a centralized control method for biological environment is provided, which specifically comprises the following steps:
and S100, detecting indoor and outdoor temperatures.
Specifically, the indoor and outdoor temperatures are detected through the temperature sensor, and the continuous detection time is not less than 60 seconds, so that the detection accuracy is improved.
And S200, controlling the air conditioning unit and the water spraying chamber to work according to the relation between the indoor and outdoor temperatures and a preset indoor temperature, wherein the preset indoor temperature is changed according to the biological growth cycle.
Specifically, the preset indoor temperature is stored in the database in advance, the controller calls the corresponding preset indoor temperature in the database according to the current period, and the air conditioning unit and the water spraying chamber are controlled to work according to the relation between the indoor temperature and the outdoor temperature and the preset indoor temperature.
For example, if the growth cycle of the current chicken flock is 8 weeks, the indoor temperature for the normal growth of the chicken flock at week 1 is 28 degrees, so the preset indoor temperature at week 1 is set to 28 degrees. The indoor temperature of the chicken flocks growing normally in week 2 is 26 degrees, so the preset indoor temperature in week 2 is set to be 26 degrees … … degrees, the indoor temperature of the chicken flocks growing normally in week 8 is 22 degrees, the preset indoor temperature in week 8 is set to be 22 degrees, the preset indoor temperatures in all periods are stored in the database in advance, and the controller only needs to call the corresponding preset indoor temperatures from the database according to the current period.
In the embodiment, the indoor and outdoor temperatures are detected, and the air conditioning unit and the water spraying chamber are controlled to work according to the relation between the indoor and outdoor temperatures and the preset indoor temperature. Because the preset indoor temperature changes along with the growth cycle of organisms, the growth cycle of the chicken flocks is matched with the preset indoor temperature, and therefore the normal growth of the chicken flocks is ensured.
As shown in fig. 3, S200 specifically includes the following:
calculating the difference value between the outdoor temperature and the preset indoor temperature, wherein the formula is as follows:
△T=tw-T
where Δ T is the difference, TwIs the outdoor temperature, T is the preset indoor temperature, TnIs the room temperature.
S202, when Δ T<0 and tnWhen the temperature is less than or equal to T, heating the room, wherein T isnIs the room temperature.
Specifically, the controller starts the air conditioning unit to heat and raise the temperature until the preset indoor temperature is reached.
To illustrate, suppose now twIs 10 degrees, tnAt 22 degrees and T at 26 degrees. At this time, the outdoor temperature is less than the indoor temperature, and the indoor temperature is less than the preset indoor temperature, so that the indoor temperature needs to be raised to reach the preset indoor temperature, and the normal growth of the chicken flocks is ensured.
S204, when Δ T<0 and tn>And T, cooling the indoor space.
In this embodiment, the amount of supply air provided by the controller to the room is fixed, the amount of supply air includes fresh air and return air, and the fresh air and the return air are in an inverse relationship. When the fresh air volume increases, the return air volume correspondingly decreases, and when the return air volume increases, the fresh air volume correspondingly decreases.
In this embodiment, open full new trend and carry out the new trend cooling.
Specifically, when Δ T<0 and tn>And T is the time, the outdoor temperature is lower than the indoor temperature, and the indoor temperature is higher than the preset indoor temperature. At the moment, the opening degree of the fresh air valve is completely opened, the opening degree of the return air valve is completely closed, and the indoor temperature is reduced through outdoor fresh air.
By way of example, suppose now that the outdoor temperature t is nowwAt 22 deg.C, room temperature tnAt 28 degrees, the preset indoor temperature T is 26 degrees. Because outdoor temperature is less than indoor temperature, consequently open new trend blast gate and carry out the new trend cooling, if the indoor temperature after the new trend cooling is 26 degrees, at this moment, indoor temperature is the same with preset indoor temperature, consequently need not to open spray chamber and air conditioning unit. The cost of fresh air cooling is far lower than the cost required by spray cooling and refrigeration cooling, so that the purpose of saving the cost is achieved.
In this embodiment, when the new trend cooling can't reach preset indoor temperature, open the spray chamber simultaneously and carry out the mist cooling.
Specifically, the fresh air is cooled through water mist sprayed out of the water spraying chamber, so that the indoor temperature is further reduced.
By way of example, suppose now that the outdoor temperature t is nowwAt 24 degrees, room temperature tnAt 30 degrees, the preset indoor temperature T is 26 degrees. Open the new trend blast gate and carry out the new trend cooling, if the indoor temperature after the new trend cooling is 28 degrees, at this moment, indoor temperature still is greater than preset indoor temperature, consequently opens the spray chamber simultaneously and carries out spray cooling. If the indoor temperature after the mist cooling is 26 degrees, the indoor temperature is the same as the preset indoor temperature, and therefore the air conditioning unit does not need to be started. The cost required by fresh air cooling and spray cooling is far lower than the cost of refrigeration cooling, so that the aim of saving the cost is fulfilled.
In this embodiment, when spray cooling can't reach and predetermine indoor temperature, reduce the aperture of new trend blast gate to predetermineeing the aperture, increase the aperture of return air blast gate to predetermineeing the aperture, close the spray chamber and open air conditioning unit and refrigerate the cooling.
Specifically, the fresh air volume and the exhaust air volume correspond to each other, so that the air is sucked and exhausted. When the air conditioning unit is opened, if the opening of the fresh air valve is still completely opened, the cold air blown out by the air conditioning unit is rapidly exhausted outdoors by the exhaust fan, so that the load of the air conditioning unit is large and the preset indoor temperature is difficult to reach. Therefore, the opening degree of the fresh air valve is required to be reduced to a preset opening degree, the air conditioning unit is prevented from being heavy, and sufficient fresh air is ensured in the henhouse; and the opening degree of the return air valve needs to be increased to a preset opening degree, so that the air supply quantity meets the indoor requirement.
By way of example, suppose now that the outdoor temperature t is nowwAt 24 degrees, room temperature tnAt 32 degrees, the preset indoor temperature T is 25 degrees. Open the new trend blast gate and carry out the new trend cooling, if the indoor temperature after the new trend cooling is 30 degrees, at this moment, indoor temperature still is greater than preset indoor temperature, consequently opens the spray booth and carries out spray cooling. If the indoor temperature after the mist cooling is 28 ℃, the indoor temperature is still greater than the preset indoor temperature, and therefore the air conditioning unit is started to cool. The indoor temperature can rapidly reach the preset indoor temperature through refrigeration and temperature reduction, so that the normal growth of the chicken flocks is ensured.
And S206, when the delta T is more than or equal to 0, cooling the indoor space.
Specifically, when Δ T ≧ 0, it means that the outdoor temperature is greater than the indoor temperature, and therefore the temperature cannot be lowered by fresh air. Directly starting a water spraying chamber to carry out spray cooling; when the spray cooling can not reach the preset indoor temperature, the opening degree of the fresh air valve is reduced to the preset opening degree, the water spraying chamber is closed, and the air conditioning unit is started to perform refrigeration cooling.
In this embodiment, the specific case of S206 may refer to S204, which is not described herein again.
In this embodiment, the method specifically further includes the following steps:
in the embodiment, the load change trend and the peak value in the same period are predicted according to the load condition of the past year and the recent weather forecast, and the working load of the air conditioning unit is adjusted according to the prediction result.
The inventors have found that the air conditioning unit cannot quickly reach the preset indoor temperature because the regulation of the indoor temperature is thermally inert. The load of the existing henhouse mainly comprises three large blocks, namely heat dissipation of a chicken flock, fresh air and heat dissipation of a maintenance structure, the heat dissipation of the chicken flock is stable and mainly related to the weight and the growth cycle of the chickens, and the heat dissipation of the fresh air and the maintenance structure is mainly influenced by outdoor temperature and periodically changes along with seasons. In the embodiment, outdoor temperature of the year and growth change of chicken flocks are input into DEST simulation software, load change trend of the year is simulated through the DEST simulation software, and then the load change trend and recent weather forecast are combined and corrected mutually, so that relatively accurate load peak value and trend are obtained finally, and the controller adjusts the working load of the air conditioning unit in advance according to the prejudgment result. The air conditioning unit can adjust the working load in advance by pre-judging the load condition in advance, so that the aim of quick response is fulfilled.
For example, the following steps are carried out: if the outdoor temperature (ambient temperature) of No. 12 and 25 in 2016 is 21 ℃, the heat load is 100KW, the outdoor temperature of No. 12 and 25 in 2017 is 20 ℃, the heat load is 90KW, the outdoor temperature of No. 12 and 25 in 2018 is 21 ℃, and the heat load is 101KW, the pre-judgment result of the DEST simulation software is that the load of No. 25 in 12 and 25 in 2019 is about 100KW, and then the load of No. 25 is about 100KW according to the mutual adjustment of the two in combination with the latest weather forecast, such as forecast of No. 25 being 21 ℃, so that the controller adjusts the air conditioning unit to the corresponding working load in advance when No. 12 and 25 in 2019, thereby enabling the indoor temperature to quickly reach the preset indoor temperature.
As shown in fig. 4, the method specifically further includes a step of differential pressure control, which specifically includes the following steps:
s302, detecting indoor and outdoor pressure difference;
specifically, the pressure sensor detects the pressure inside and outside the room, and the pressure difference inside and outside the room is calculated according to the detected pressure inside and outside the room. Wherein, the continuous detection time is not less than 60 seconds, thereby improving the detection accuracy.
S304, calculating the difference between the indoor and outdoor pressure difference and the preset negative pressure.
And S306, controlling the running frequency of the exhaust fan according to the differential pressure difference.
Specifically, if the detected indoor and outdoor pressure difference is P1Allowable deviation is DeltaP, and preset negative pressure is P2When P is1＞P2When the sum is plus delta P, the running frequency of the exhaust fan is increased according to the result calculated by the PID algorithm; when P is present1＜P2And when the sum is plus delta P, the running frequency of the exhaust fan is reduced according to the result calculated by the PID algorithm.
The inventors found that, when the indoor pressure of the chicken house is greater than the outdoor pressure, the bad smell or germs generated from the chicken flocks are discharged from the indoor to the outdoor (uncontrolled) through the gaps, thereby polluting the environment. In this embodiment, the operation frequency of the exhaust fan is controlled according to the differential pressure difference, so that the room is always under a constant negative pressure. Because the indoor is under negative pressure, indoor gas can not be discharged to the outdoor from the indoor through the gap, therefore, the indoor gas can only be discharged to the outdoor through the exhaust fan, thereby carrying out centralized treatment on peculiar smell or germs.
As shown in FIG. 5, the method specifically further comprises CO2A step of controlling the concentration difference, which specifically comprises the following steps:
s402, detecting indoor CO2And (4) concentration.
In particular, by CO2Concentration sensor for detecting indoor CO2And (4) concentration. Wherein, the continuous detection time is not less than 60 seconds, thereby improving the detection accuracy.
S404, calculating indoor CO2Concentration and Preset indoor CO2CO concentration2The difference in concentration.
S406, according to CO2The concentration difference value controls the opening of the fresh air valve.
In particular, if detected indoor CO is present2At a concentration of C1Allowable deviation is Δ C, and indoor CO is preset2At a concentration of C2When C is present1＞C2When the wind speed is plus delta C, the opening of the fresh air valve is increased according to the result calculated by the PID algorithm; when C is present1＜C2Calculated according to PID algorithm at +. DELTA.CThe opening of the fresh air valve is reduced as a result.
In this example, CO is passed2The opening degree of the fresh air valve is adjusted by the concentration difference value, so that indoor CO is generated2CO at a constant concentration at all times2The concentration is lower, thereby ensuring the fresh air required by the normal growth of the chicken flocks。
As shown in fig. 6, a centralized control method for biological environment is provided, which specifically comprises the following steps:
the first step is as follows: and detecting indoor and outdoor temperatures.
The second step is that: calculating the difference value between the outdoor temperature and the preset temperature: Δ T = Tw-T。
The third step: when Δ T<0 and tnAnd when the T is less than or equal to T, entering the fourth step.
The fourth step: and starting the air conditioning unit to heat and raise the temperature.
The fifth step: when Δ T<0 and tn>And T, entering the sixth step.
And a sixth step: and opening a fresh air to cool the fresh air, and entering the seventh step when the fresh air cannot reach the preset indoor temperature.
The seventh step: and simultaneously, starting a water spraying chamber to perform spray cooling, and entering an eighth step when the spray cooling cannot reach the preset indoor temperature.
Eighth step: the opening degree of the fresh air valve is reduced to the preset opening degree, the opening degree of the return air valve is increased to the preset opening degree, the water spraying chamber is closed, and the air conditioning unit is started to refrigerate and cool.
The ninth step: and when the delta T is larger than or equal to 0, starting a water spraying chamber for spray cooling, and when the spray cooling cannot reach the preset indoor temperature, entering the eighth step.
It should be understood that the steps in the flowcharts are shown in order as indicated by the arrows, but the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in each flowchart may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In one embodiment, an air conditioner is provided, and the air conditioner adopts the biological environment centralized control method of any one of the above embodiments.
In one embodiment, a computer-readable storage medium is provided, storing a computer program that, when executed by a processor, causes the processor to perform the steps of the above-described centralized control of biological environments. Here, the steps of the centralized control method of biological environment may be the steps of the centralized control method of biological environment of the above embodiments.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the above-described biological environment centralized control method. Here, the steps of the centralized control method of biological environment may be the steps of the centralized control method of biological environment of the above embodiments.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above description of the air conditioner and the method and system for centralized control of biological environment provided by the present invention, those skilled in the art will appreciate that the concepts of the embodiments of the present invention may be modified in the specific embodiments and applications, and in summary, the present disclosure should not be construed as limiting the scope of the present invention.
Claims (6)
1. A biological environment centralized control method is characterized by comprising the following steps:
detecting indoor and outdoor temperatures;
according to indoor outer temperature and the relation control air conditioning unit who predetermines indoor temperature and spray chamber work, include:
calculating the difference value between the outdoor temperature and the preset indoor temperature, wherein the formula is as follows:
△T=tw-T
wherein, Δ T is a difference value, tw is an outdoor temperature, T is a preset indoor temperature, and tn is an indoor temperature;
when delta T is less than 0 and tn is less than or equal to T, carrying out indoor heating treatment;
when delta T <0 and tn > T, cooling the indoor space, comprising the following steps:
opening the whole fresh air to cool the fresh air;
when the fresh air cooling cannot reach the preset indoor temperature, simultaneously starting a water spraying chamber to carry out spray cooling;
when the spray cooling cannot reach the preset indoor temperature, reducing the opening degree of the fresh air valve to the preset opening degree, increasing the opening degree of the return air valve to the preset opening degree, closing the water spray chamber and starting the air conditioning unit for cooling;
when the delta T is more than or equal to 0, the indoor cooling treatment is carried out, and the method comprises the following steps:
starting a water spraying chamber for spraying and cooling;
when the spray cooling cannot reach the preset indoor temperature, reducing the opening degree of the fresh air valve to the preset opening degree, increasing the opening degree of the return air valve to the preset opening degree, closing the water spray chamber and starting the air conditioning unit for cooling;
wherein the preset indoor temperature is changed according to a biological growth cycle.
2. The method of claim 1, wherein when Δ T <0 and tn ≦ T, performing the temperature ramp-up process for the chamber comprises:
and starting the air conditioning unit to heat and raise the temperature.
3. The method of claim 1, further comprising: and pre-judging the load change trend and peak value in the same period according to the load condition of the past year and the recent weather forecast, and adjusting the working load of the air conditioning unit according to the pre-judging result.
4. The method of claim 1, further comprising:
and controlling the running frequency of the exhaust fan according to the pressure difference.
5. The method of claim 1, further comprising:
according to CO2The concentration difference value controls the opening of the fresh air valve.
6. A centralized biological environment control system, which is characterized by comprising a water spraying chamber, an air conditioning unit and a controller, wherein the controller controls the air conditioning unit and the water spraying chamber to work by adopting the method of any one of claims 1 to 5.
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| JP7060262B2 (en) * | 2020-05-12 | 2022-04-26 | 株式会社楽々 | Indoor environment adjustment method and indoor environment adjustment system |
| CN111955382A (en) * | 2020-09-16 | 2020-11-20 | 珠海格力电器股份有限公司 | Air conditioning system, control method, controller and air conditioning unit |
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