CN117461562B - Building pig farm environmental control system - Google Patents
Building pig farm environmental control system Download PDFInfo
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- CN117461562B CN117461562B CN202311799630.5A CN202311799630A CN117461562B CN 117461562 B CN117461562 B CN 117461562B CN 202311799630 A CN202311799630 A CN 202311799630A CN 117461562 B CN117461562 B CN 117461562B
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- 230000007613 environmental effect Effects 0.000 title claims description 38
- 238000009423 ventilation Methods 0.000 claims abstract description 48
- 241000282887 Suidae Species 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims description 31
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 21
- 230000001276 controlling effect Effects 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 14
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 230000000241 respiratory effect Effects 0.000 claims description 2
- 230000002411 adverse Effects 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 113
- 238000001816 cooling Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- 230000033764 rhythmic process Effects 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Classifications
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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
- A01K1/0058—Construction of air inlets or outlets in roofs
-
- 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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ventilation (AREA)
- Housing For Livestock And Birds (AREA)
Abstract
The invention relates to a building pig farm environment control system, belongs to the technical field of pig farm environment regulation and control, and solves the technical problem that a building pig farm in the prior art cannot ventilate and ventilate under the condition of power failure. Comprises an air duct; the negative pressure system is arranged at the air outlet of the air duct; the system also comprises a temperature control system; when the negative pressure system fails, the temperature control system is started to regulate and control the temperature of the set area of the air outlet of the air duct, so that the temperature of the gas passing through the set area is lower than that of the gas in each area below the set area. When the negative pressure system fails due to power failure or other emergency states, the temperature of the part of the air duct can be reduced through the temperature control system, the automatic ventilation function of the air duct is realized on the basis of saving cost, and therefore, the situation that pigs are ill or die due to adverse influence of emergency conditions is avoided because each layer of pigsty still keeps a good air environment in the emergency state is realized.
Description
Technical Field
The invention belongs to the technical field of pig farm environment regulation and control, relates to a technology for guaranteeing ventilation quality of a pig farm under the condition of power failure, and particularly relates to a building pig farm environment control system.
Background
Based on environmental protection consideration and overall planning of land use, governments are out of the way to delimit a forbidden raising area for raising, and land problems become the unattainable demands of large, medium and small enterprises in many areas, wherein the existing raising facilities allow multi-layer buildings to be built, which represents that the 'pig raising in the building' is officially approved, the rhythm of building pig farms is greatly promoted, the pig raising mode of the multi-layer building can fully dig land potential, and the land utilization rate is improved by utilizing high-rise space so as to improve the yield of pigs in unit area. The cultivation mode provides a better solution for relieving contradiction between cultivation amount and land resources.
However, the pig raising in the building has high pig density, and the complexity of realizing functions of ventilation, exhaust, cooling, heat preservation, deodorization and the like is much more than that of the pig raising in the open-air. Especially in summer, if ventilation and cooling are not considered in place, especially when a sudden power failure is encountered and the pig farm is temporarily without standby power supply, the pig farm suffers a significant loss.
Therefore, how to improve the ventilation performance of the pig farm in a building, especially when the fresh air system and the air conditioning system cannot work during sudden power failure, to increase the air flow in the pig farm and to reduce the temperature in the pig farm is a problem to be considered and solved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a building pig farm environment control system.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
provides a pig farm environment control system of a building, which at least comprises:
the air duct is provided with at least a plurality of communication ports so as to be communicated with each layer of pigsty of the building pigsty;
the negative pressure system is arranged at the air outlet of the air duct;
wherein, also include the temperature control system;
and when the negative pressure system fails, the temperature control system is started to regulate and control the temperature of the set area of the air outlet of the air duct, so that the temperature of the gas passing through the set area is lower than that of the gas in each area below the set area.
Preferably, the temperature control system at least comprises:
a storage device for storing at least a cooling medium;
the regulation and control pipeline is communicated with the storage device;
the control valve is arranged on the regulating pipeline;
wherein the regulating pipeline is at least arranged in a set area of the air duct;
when the negative pressure system fails, the control valve is started so that the cooling medium enters the regulating pipeline from the storage device;
and, on the flow path of the gas along the air duct, the setting area is at least at or near the end point of the flow path.
Preferably, the method further comprises:
a breathing structure disposed below the set region;
wherein the breathing structure has at least a breathing wall radially circumscribing a flow path of the gas;
and the respiratory wall is elastically deformed under the control of the throughput of the gas.
Preferably, the cross-sectional area of the set area is S1, and the total cross-sectional area of the air duct is S2;
wherein the sectional area of the set region satisfies: 0<S1≦S2；
And the length of the end point of the flow path from the air outlet of the air duct is set to be L.
Preferably, the method further comprises:
the spray pipeline is communicated with the regulation pipeline, and the tail end of the spray pipeline at least covers each pigsty of each layer of pigsty;
wherein, the cooling medium flows through the regulating pipeline and then enters the spraying pipeline.
Preferably, the spray lines have different spray strategies at each level of pigsty;
wherein, the spraying strategy at least comprises: regulating and controlling the size of the spraying area and the flow of the cooling medium;
and the spraying area is in direct proportion to the floor height of the pig farm of the building;
the flow of the cooling medium is in direct proportion to the floor height of the pig farm of the building.
Preferably, the regulating line has a plurality of flow paths in the set region;
wherein the sum of the areas of the pipelines in which the plurality of flow paths 4021 are located is S3, and the area of the setting area 101 is S4;
the value range of S3 is:S4≦S3≦S4。
preferably, the method further comprises:
a control unit and a monitoring unit;
the control unit is electrically connected with the negative pressure system and is at least used for controlling the air quantity of the negative pressure system;
the monitoring units are arranged in each layer of pigsty and are at least used for acquiring environmental information;
wherein the environment information at least includes: pig house temperature, humidity, carbon dioxide concentration and ammonia concentration;
and the control unit adjusts the air quantity of the negative pressure system according to the environmental information.
Preferably, the control unit includes at least:
a main control module and a sub control module;
the main control module is used for regulating and controlling the frequency of each fan of the negative pressure system so as to regulate and control the total ventilation quantity;
and the sub-control module is used for regulating and controlling the ventilation quantity of each layer of pigsty.
Preferably, the method further comprises:
the information input module is electrically connected with the sub-control module and used for inputting information of pigs in each memory fence of each layer of pig house;
the sub-control module regulates and controls the ventilation quantity according to the pig information;
wherein, the pig information at least comprises: pig type, pig number, pig weight.
Preferably, the method further comprises:
the calculation module is used for calculating the set ventilation quantity of each layer of pigsty in different time intervals at least according to the environmental information and the pig information, and feeding back the set ventilation quantity to the main control module and the sub-control module to regulate and control ventilation according to the set ventilation quantity.
The invention provides a building pig farm environment control system, which has the beneficial effects that:
firstly, in a normal mode, air refreshing of each layer of pig house in a building pig farm can be realized through a negative pressure system, so that on one hand, the cleaning of the internal environment of the pig house is ensured, and on the other hand, the cooling of the interior of each layer of pig house is realized;
secondly, when the negative pressure system fails due to power failure or other emergency states, the temperature of the part of the air duct is reduced by the temperature control system, and the automatic ventilation function of the air duct is realized on the basis of saving cost, so that the pig house in each layer still keeps a good air environment in the emergency state, and the situation that pigs are ill or dead due to the adverse influence of the emergency state is avoided.
Drawings
FIG. 1 is a perspective view of a building pig farm environmental control system according to the present invention;
FIG. 2 is a side view of a building pig farm environmental control system according to the present invention;
FIG. 3 is a side cross-sectional view of a building pig farm environmental control system in accordance with the present invention;
FIG. 4 is a side cross-sectional view (labeled gas flow direction) of a pig farm environmental control system of a building in accordance with the present invention;
FIG. 5 is a block diagram of a temperature control system in a pig farm environmental control system of a building according to the present invention;
fig. 6 is a schematic diagram of a building pig farm environmental control system according to the present invention.
Description of the reference numerals
1. An air duct; 101. setting a region; 2. pig farm of building; 201. each layer of pigsty; 3. a negative pressure system; 4. a temperature control system; 401. a storage device; 402. regulating and controlling a pipeline; 4021. a flow path; 5. and a spray pipeline.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6, the following embodiments of the present invention are provided:
as shown in fig. 1 to 5, a first embodiment of the present invention provides a building pig farm 2 environmental control system, which at least includes:
the air duct 1 is provided with at least a plurality of communication ports so as to be communicated with each layer of pigsty 201 of the building pigsty 2;
the negative pressure system 3 is arranged at the air outlet of the air duct 1;
wherein, the device also comprises a temperature control system 4;
and, when the negative pressure system 3 fails, the temperature control system 4 is started to regulate and control the temperature of the set area 101 of the air outlet of the air duct 1, so that the temperature of the gas passing through the set area 101 is lower than that of the gas in each area below the set area 101.
In this embodiment, a ventilation mode of a pig farm 2 of a building in a conventional mode is provided.
I.e. to add the air duct 1 and the negative pressure system 3. The air duct 1 is vertically arranged in a pig farm 2 of a building and is provided with a plurality of communication ports for ventilation of each layer of pig farm 201.
The negative pressure system 3 is used for forming the negative pressure of the air duct 1 so as to realize the air exchange between each layer of pig house 201 and the external environment, on one hand, ensure the air freshness of each layer of pig house 201, avoid the breeding of bacteria, improve the sanitary environment inside the pig house 2 of the building, and on the other hand, form the exchange between the internal temperature and the external temperature so as to reduce the internal temperature of each layer of pig house 201 and avoid diseases of pigs caused by overhigh temperature.
On the basis of the above, as further optimization, a ventilation mode of the pig farm 2 of the building in a power failure mode is provided.
I.e. adding a temperature control system 4. The temperature control system 4 is configured to perform a cooling process on a set area 101 of the air duct 1, where the set area 101 is to be an area of the air duct 1 near the air outlet.
We have further found that when the negative pressure system 3 fails due to a power outage or other emergency, the temperature control system 4 is started to cool the aforementioned set area 101, so that the temperature of the air in the area is reduced, and further, because the temperature of the air in the lower portion (lower floor) of the building is relatively high, the temperature of the air flowing into the lower portion of the air duct 1 is relatively high, and when the upper portion (set area 101) and the lower portion of the air duct 1 form a temperature difference, the air with relatively high temperature, i.e. the air in the lower portion of the air duct 1, rises, and is discharged to the air duct 1 along with the rising, so that a negative pressure environment is formed in the air duct 1, thereby driving the air outside to flow into the air duct 1 to form a passive air refreshing process.
It can be seen that when the negative pressure system 3 is in emergency due to power failure or other faults, the automatic ventilation process of each layer of pigsty 201 and the external environment can be realized by starting the temperature control module, so that the effects of air exchange and temperature reduction inside the pigsty are ensured.
Furthermore, we have found that the higher the height of the tunnel 1, the better the automatic ventilation effect it creates. Therefore, the method has better adaptability to the pig farm 2 of the building, and the height of the air duct 1 can be determined according to the height of the building so as to ensure relatively good air current conversion effect.
In summary, the environmental control system for the pig farm 2 of the building provided by the embodiment has the following beneficial effects:
firstly, in a normal mode, the air exchange of each layer of pig house 201 in a building pig farm 2 can be realized through the negative pressure system 3, so that on one hand, the cleaning of the internal environment of the pig house is ensured, and on the other hand, the cooling of the interior of each layer of pig house 201 is realized;
secondly, when the negative pressure system 3 fails due to power failure or other emergency conditions, the temperature of the part of the air duct 1 can be reduced by the temperature control system 4, and the automatic ventilation function of the air duct 1 is realized on the basis of saving cost, so that the pig house 201 in each layer still maintains a good air environment in the emergency condition, and the situation that pigs are ill or dead due to the adverse influence of the emergency condition is avoided.
As shown in fig. 5, a second embodiment of the present invention provides a building pig farm 2 environmental control system, and on the basis of the first embodiment, the temperature control system 4 at least includes:
a storage device 401, wherein the storage device 401 is at least used for storing cooling medium;
a control line 402 in communication with the storage device 401;
a control valve provided in the control line 402;
wherein the regulating pipeline 402 is at least arranged in the setting area 101 of the air duct 1;
wherein, when the negative pressure system 3 fails, the control valve is started so that the cooling medium enters the regulating pipeline 402 from the storage device 401;
further, on the flow path 4021 along the air duct 1, the setting area 101 is located at least at the end point of the flow path 4021 or near the end point of the flow path 4021.
In the present embodiment, the power supply module of the temperature control system 4 may use a backup battery, but this may cause an increase in cost. Therefore, it is necessary to consider that the cost is as low as possible, and avoid adverse effects of emergency situations such as power failure on the temperature control module, so as to ensure that the temperature control module still can operate normally under the foregoing conditions.
Based on this, the specific structure of the temperature control system 4 is optimized.
Wherein, temperature control system 4 is only constituted by storage device 401, temperature control pipeline and control valve.
The storage device 401 may be a water tank, which stores a cooling medium, such as water, therein. And the cooling medium needs to be cooled to ensure that the cooling medium achieves a good cooling effect. The control pipeline 402 is communicated with the storage device 401 and is at least arranged in the setting area 101 of the air duct 1. When the negative pressure system 3 fails, the control valve is opened manually, so that the cooling medium in the storage device 401 flows into the regulating and controlling pipeline 402, and the air is cooled in the setting area 101 of the air duct 1, so that the air temperature in the upper part area (the setting area 101) of the air duct 1 is lower than the air temperature in the lower part area of the air duct 1, and the automatic flow of the air is formed, so that the process of exchanging the air in the pigsty with the air in the external environment is realized.
In addition, in order to improve the exchange efficiency between the air duct 1 and the external ambient air, a certain consideration needs to be given to the selected position of the setting area 101, and if the whole air duct 1 is cooled, on the one hand, the cost will be increased, and on the other hand, the process of automatically exchanging the air duct 1 with the external ambient air cannot be realized. Therefore, we further define the setting area 101 to be at the end of the flow path 4021, i.e. the position of the air outlet of the air duct 1, or sufficiently close to the end of the flow path 4021, i.e. in the upper part area of the air duct 1, to form the aforementioned function. The flow path 4021 of the air refers to a path through which the air flows out of the air outlet of the air duct 1 from the bottom of the air duct 1.
The above process can be seen that, even under emergency conditions such as power failure, the temperature control system 4 can be started normally, so that the set area 101 of the air duct 1 is cooled, and the process of exchanging air between each layer of pigsty 201 and the external environment is realized.
On the basis of the above, a cavity which is not penetrated is formed in the inner wall of the air duct 1 and is positioned below the setting area 101, and a breathing structure is arranged in the cavity along the radial direction of the air duct 1, wherein the breathing wall of the breathing structure is made of flexible materials. When the temperature of the set area 101 is low, it is foreseen that the flow velocity of the gas along the duct 1 is high, and that the change in pressure of the breathing wall will deform away from the inner wall of the duct, i.e. expand radially inwards, whereby the radial dimension of the flow path of the gas at this location is reduced, and that the flow velocity of the gas at this location is further increased, so that the gas can be rapidly discharged out of the duct 1. When the temperature of the setting area 101 is relatively high, the flow speed of the gas will be slow, and the gas will be slowly accumulated in the air duct 1, at this time, the breathing wall will deform towards the inner wall of the air duct 1, i.e. expand radially outwards, so as to increase the storage capacity of the gas, when the temperature of the setting area 101 begins to decrease, the breathing wall will transition from expanding radially outwards to expanding radially inwards due to the increase of the flow speed of the gas, so as to compress the stored gas and discharge the gas outwards, so as to increase the discharge rate.
The third embodiment of the present invention provides a building pig farm 2 environmental control system, and based on the previous embodiment, the cross-sectional area of the set area 101 is S1, and the total cross-sectional area of the air duct 1 is S2;
wherein, the section of the setting area 101The area satisfies: 0<S1≦S2；
The length of the end point of the flow path 4021 from the air outlet of the air duct 1 is set to be L.
In the present embodiment, the cross-sectional area of the set region 101 is defined.
It should be noted that the larger the setting area 101 is, the better the area occupied by the air duct 1 is. The reason is that if the setting area 101 occupies a larger area, especially when occupying the whole air duct 1, the air in the whole air duct 1 is cooled, so that the difference between the air temperature of the upper part area and the air temperature of the lower part area of the air duct 1 is not large, at this time, the air in the lower part area cannot be more efficiently caused to flow to the upper part area, and thus the air in the air duct 1 and the air in the external environment cannot be better exchanged. Therefore, the area occupied by the setting area 101 needs to be optimized and adjusted to ensure a good air exchange efficiency.
Based on this, the cross-sectional area defining the set area 101 is at least as follows: 0<S1≦S2, performing operation. In the numerical interval, the air temperature of the upper part area and the air temperature of the lower part area of the air duct 1 are caused to form a more ideal temperature difference, so that the air of the lower part area rapidly flows out of the air duct 1. In addition, the temperature of the cooling medium can be utilized to a large extent, and the flow rate of the cooling medium does not need to be increased, so that certain resources are saved.
The fourth embodiment of the invention provides a building pig farm 2 environment control system, and based on the previous embodiment, the system further comprises:
a spray line 5 in communication with the control line 402, and the end of the spray line 5 at least covers each pigsty of each layer of pigsty;
wherein the cooling medium flows through the regulating pipeline 402 and then enters the spraying pipeline 5.
In this embodiment, we further found that since the cooling medium only exchanges heat in the set region 101, it has a certain cooling temperature after cooling the gas, and a part of the cooling temperature is wasted if the cooling medium is directly discharged. Further, it has been found that the air flow inside the pig house at the higher level of the pig farm 2 of the building is relatively limited, because the negative pressure effect formed above has a high extraction of air at the lower level, thus making it relatively high, which results in a relatively poor air flow inside the pig house at the higher level, and thus in an influence on the exchange of air and temperature of the pig house at this portion.
Based on this, the shower line 5 is added. The tail end of the spraying pipeline 5 at least covers each pig house of each layer of pig farm, and the cooling medium for cooling and heat exchange enters the spraying pipeline 5 through the regulating pipeline 402 and is sprayed to each pig house through the spraying pipeline 5 to realize spraying cooling.
It can be seen that, by the foregoing manner, the cooling effect of the cooling medium can be utilized to a greater extent, thereby further ensuring the cooling effect of each layer of pigsty 201, especially the environmental cooling effect of the pigsty on the high floors.
The fifth embodiment of the present invention provides a building pig farm 2 environmental control system, and on the basis of the previous embodiment, the spraying pipeline 5 has different spraying strategies in each layer of pig farm;
wherein, the spraying strategy at least comprises: regulating and controlling the size of the spraying area and the flow of the cooling medium;
and the spraying area is in direct proportion to the floor height of the pig farm 2;
the flow of the cooling medium is proportional to the floor height of the pig farm 2.
In this embodiment, as described above, although the foregoing embodiment can cool down the pig house on the high floor to some extent, it is desirable to make the cooling effect on the pig house on the high floor to the greatest extent because the total amount of the cooling medium is constant.
Based on this, a spray strategy of the spray line 5 is provided.
Specifically, as the number of floors increases, the spray area in each layer of pigsty 201 needs to be increased to ensure a greater degree of resource tilting for the high-rise pigsty and an effective reduction in the temperature inside the high-rise pigsty.
Specifically, as the number of floors increases, the flow of the cooling medium in each layer of pigsty 201 increases synchronously, i.e. the higher the number of floors is, the more total amount of cooling medium enters, so as to realize a larger degree of cooling of the high-floor pigsty.
A sixth embodiment of the present invention provides a building pig farm 2 environmental control system, and on the basis of the previous embodiment, the regulating pipeline 402 has a plurality of flow paths 4021 in the setting area 101;
wherein the sum of the areas of the pipelines in which the plurality of flow paths 4021 are located is S3, and the area of the setting area 101 is S4;
the value range of S3 is:S4≦S3≦S4。
in the present embodiment, the area occupied by the control line 402 in the setting area 101 is defined. The larger the area occupied by the control line 402 is, the better the heat exchange is, because the cooling medium needs to be introduced into the shower line 5 to perform shower cooling of the pig house after the heat exchange in the set area 101 is completed. If the residence time of the cooling medium in the setting area 101 is long, the cooling effect of the spraying area is lost, although the cooling of the setting area 101 can be ensured to a large extent.
Based on this, we have optimized and tuned the area occupied by the control line 402. Specifically, the range of values that it is required to satisfy S3 is:s4 +.S3 +.S4. Within this interval, the cooling medium can be cooled down well in the set area 101, and the rest of the cooling can be cooled down by a secondary spray in the spray area.
As shown in fig. 6, a seventh embodiment of the present invention provides a building pig farm 2 environmental control system, and further includes, based on the previous embodiment:
a control unit and a monitoring unit;
the control unit is electrically connected with the negative pressure system 3 and is at least used for controlling the air quantity of the negative pressure system 3;
the monitoring units are arranged in each layer of pigsty 201 and are at least used for acquiring environmental information;
wherein the environment information at least includes: pig house temperature, humidity, carbon dioxide concentration and ammonia concentration;
and, the control unit adjusts the air volume of the negative pressure system 3 according to the environmental information.
In this embodiment we further optimize and adjust the negative pressure system 3.
In the foregoing embodiment, the negative pressure system 3 may be formed by a plurality of sets of fans, such as EC variable frequency negative pressure fans, disposed at the air outlet of the air duct 1. However, due to the different construction of the building pig farm 2 from the normal pig farm, it can accommodate a greater number of pigs, which results in the need to optimise the negative pressure system 3 so that it can better serve the building pig farm 2 where the situation is relatively complex.
Based on this, a control unit and a monitoring unit are added.
The control unit can control the frequencies of the plurality of groups of fans so as to regulate and control the total ventilation quantity. The monitoring unit is installed in each layer of pig house 201 to be used for obtaining pig house temperature, humidity, carbon dioxide concentration and ammonia concentration (corresponding to the sensor), and it will obtain parameter information feedback to the control unit, and the control unit adjusts and controls total ventilation volume according to parameter information, in order to ensure that the environment of each layer of pig house 201 reaches the requirement of expected environment.
As shown in fig. 6, an eighth embodiment of the present invention provides a building pig farm 2 environmental control system, and on the basis of the previous embodiment, the control unit at least includes:
a main control module and a sub control module;
the main control module is used for regulating and controlling the frequency of each fan of the negative pressure system 3 so as to regulate and control the total ventilation quantity;
and the sub-control module is used for regulating and controlling the ventilation quantity of each layer of pigsty 201.
In this embodiment, the control unit is further refined.
The main control module is used for adjusting the frequency of each fan of the negative pressure system 3 so as to regulate and control the total ventilation quantity. The sub-control module is used for regulating and controlling the ventilation volume of each layer of pigsty 201, namely distributing the total air volume to each layer of pigsty according to different volume quantities according to different environmental parameters of each layer of pigsty 201, so as to realize reasonable control of the air volume and achieve a better ventilation effect. Wherein, set up multiunit ventilation valve at the air pipe of every layer of pig house 201, divide accuse module and the automatically controlled connection of ventilation valve to realize the individual regulation and control of every layer of pig house 201 ventilation volume.
As shown in fig. 6, a ninth embodiment of the present invention provides a building pig farm 2 environmental control system, and further includes, based on the previous embodiment:
the information input module is electrically connected with the sub-control module and is used for inputting information of pigs in each memory column of each layer of pigsty 201;
the sub-control module regulates and controls the ventilation quantity according to the pig information;
wherein, the pig information at least comprises: pig type, pig number, pig weight.
In this embodiment, the system further includes an information input module.
The reason is that if the ventilation volume is regulated and controlled only by the environmental parameter information acquired by the monitoring unit, the ventilation volume is continuously regulated and controlled in a certain period of time only by the environmental parameter because the number of pigs in the pig farm 2 of the building is large and the change rate of the environmental parameter is relatively large, so that larger resources are consumed.
Based on this, increase the information input module, can calculate the required ventilation volume of this layer pig house through the pig quantity, pig type and pig weight of each layer pig house 201 of input at the information input module, and then regulate and control according to required ventilation volume through the separation control module, and the aforesaid environmental parameter can be as another important regulation and control information to assist the regulation and control of ventilation volume.
As shown in fig. 6, a tenth embodiment of the present invention provides a building pig farm 2 environmental control system, and further includes, based on the previous embodiment:
the calculation module calculates set ventilation amounts of different time periods of each layer of pigsty 201 at least according to the environmental information and the pig information, and feeds back the set ventilation amounts to the main control module and the sub control module to regulate and control ventilation according to the set ventilation amounts.
In this embodiment, a calculation module is further added. The calculation module is configured to calculate the set ventilation amounts of each layer of pigsty 201 in different time periods according to the foregoing parameter information, and the main control module and the sub control module regulate and control according to the set ventilation amounts.
In describing embodiments of the present invention, it is to be understood that terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "inner", "outer", and the like indicate an azimuth or positional relationship.
In describing embodiments of the present invention, it should be noted that the terms "mounted," "connected," and "assembled" are to be construed broadly, as well as being either fixedly connected, detachably connected, or integrally connected, unless otherwise specifically indicated and defined; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of embodiments of the invention, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
In describing embodiments of the present invention, it will be understood that the terms "-" and "-" are intended to be inclusive of the two numerical ranges, and that the ranges include the endpoints. For example: "A-B" means a range greater than or equal to A and less than or equal to B. "A-B" means a range of greater than or equal to A and less than or equal to B.
In the description of embodiments of the present invention, the term "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A pig farm environmental control system for a building, comprising at least:
the air duct is provided with at least a plurality of communication ports so as to be communicated with each layer of pigsty of the building pigsty;
the negative pressure system is arranged at the air outlet of the air duct;
wherein, also include the temperature control system;
when the negative pressure system fails, the temperature control system is started to regulate and control the temperature of a set area of the air outlet of the air duct, so that the temperature of gas passing through the set area is lower than that of gas in each area below the set area;
the temperature control system at least comprises:
a storage device for storing at least a cooling medium;
the regulation and control pipeline is communicated with the storage device;
the control valve is arranged on the regulating pipeline;
wherein the regulating pipeline is at least arranged in a set area of the air duct;
when the negative pressure system fails, the control valve is started so that the cooling medium enters the regulating pipeline from the storage device;
and, on the flow path of the gas along the air duct, the setting area is at least at the end point of the flow path or near the end point of the flow path;
further comprises:
a breathing structure disposed below the set region;
wherein the breathing structure has at least a breathing wall radially circumscribing a flow path of the gas;
and, the respiratory wall is elastically deformed by the throughput of the gas;
the sectional area of the set area is S1, and the total sectional area of the air duct is S2;
wherein the sectional area of the set region satisfies:；
the length of the end point of the flow path from the air outlet of the air duct is set to be L;
further comprises:
the spray pipeline is communicated with the regulation pipeline, and the tail end of the spray pipeline at least covers each pigsty of each layer of pigsty;
wherein the cooling medium flows through the regulating pipeline and then enters the spraying pipeline;
the spraying pipeline has different spraying strategies in each layer of pigsty;
wherein, the spraying strategy at least comprises: regulating and controlling the size of the spraying area and the flow of the cooling medium;
and the spraying area is in direct proportion to the floor height of the pig farm of the building;
the flow of the cooling medium is in direct proportion to the floor height of the pig farm;
the regulating pipeline is provided with a plurality of flow paths in the set area;
the sum of the areas of the pipelines where the flow paths are located is S3, and the area of the set area is S4;
the value range of S3 is:。
2. the building pig farm environmental control system of claim 1, further comprising:
a control unit and a monitoring unit;
the control unit is electrically connected with the negative pressure system and is at least used for controlling the air quantity of the negative pressure system;
the monitoring units are arranged in each layer of pigsty and are at least used for acquiring environmental information;
wherein the environment information at least includes: pig house temperature, humidity, carbon dioxide concentration and ammonia concentration;
and the control unit adjusts the air quantity of the negative pressure system according to the environmental information.
3. A pig farm environmental control system according to claim 2, wherein the control unit comprises at least:
a main control module and a sub control module;
the main control module is used for regulating and controlling the frequency of each fan of the negative pressure system so as to regulate and control the total ventilation quantity;
and the sub-control module is used for regulating and controlling the ventilation quantity of each layer of pigsty.
4. A pig farm environmental control system according to claim 3, further comprising:
the information input module is electrically connected with the sub-control module and used for inputting information of pigs in each memory fence of each layer of pig house;
the sub-control module regulates and controls the ventilation quantity according to the pig information;
wherein, the pig information at least comprises: pig type, pig number, pig weight.
5. The system for controlling the environment of a pig farm in a building according to claim 4, further comprising:
the calculation module is used for calculating the set ventilation quantity of each layer of pigsty in different time intervals at least according to the environmental information and the pig information, and feeding back the set ventilation quantity to the main control module and the sub-control module to regulate and control ventilation according to the set ventilation quantity.
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