CN111084119B - Environment-friendly and efficient temperature and humidity adjusting air conditioning system applied to large-scale cold field room - Google Patents
Environment-friendly and efficient temperature and humidity adjusting air conditioning system applied to large-scale cold field room Download PDFInfo
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- CN111084119B CN111084119B CN201911368232.1A CN201911368232A CN111084119B CN 111084119 B CN111084119 B CN 111084119B CN 201911368232 A CN201911368232 A CN 201911368232A CN 111084119 B CN111084119 B CN 111084119B
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- air
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- wet curtain
- cold field
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
Abstract
The invention discloses an air conditioning system, which comprises a cold field, an exhaust fan arranged at the air outlet end of the cold field, a wet curtain system arranged at the air inlet end of the cold field and a refrigerating system, wherein the wet curtain system comprises a water tank, a water pump; the fresh air is divided into two parts after passing through the wet curtain system, and the exhaust fan sucks the fresh air to enable the first part of air flow to enter the cold field; and the second part of air flow is sucked into the refrigerating system for cooling, then is input into a cold area of the cold field for merging with the first part of air flow, adjusts the temperature and humidity of the air of the cold field, and finally is discharged from the air outlet end. The invention organically combines the wet curtain system and the refrigerating system, and elaborately sets the air duct flow to regulate the temperature and humidity of the air in the large-scale cold field. The invention has low equipment cost, ensures the proper temperature of the cooling field and reduces the humidity. And the method also can effectively reduce indoor dust, reduce the emission of outdoor combustion waste gas and improve the environment, so that the production can be efficiently carried out by using a cold field.
Description
Technical Field
The invention relates to the technical field of air conditioners for regulating and controlling the temperature and humidity of indoor air, in particular to an air conditioning system for regulating and controlling the temperature and humidity of air in a large-scale cold field in four seasons.
Background
With the development of science and technology, people carry out various productions in large-scale rooms, such as planting plants or breeding organisms. Many large production sites require long-term regulation of the humidity and temperature of the air inside to accommodate the growth of plants or animals. For example, the raised broiler chicken is fresh and tender in quality and delicious in meat taste, and is favored by consumers. At present, the temperature control systems used in most intensive chicken farms are wet curtain and biomass fuel boiler systems. The wet curtain system has simple integral structure, low equipment price, easy maintenance and certain cooling function. But also has the problems that the local wind speed is too high, the humidity is too high, the chicken feed and the chicken feather form dust to pollute the environment of the henhouse, the body of a breeder and the chicken is harmed, and the combustion tail gas of the biomass fuel has great pollution to the environment.
In the chicken raising process of an intensive chicken farm, the problem of adjusting the temperature and the humidity of a henhouse also exists. The raising period of the broilers is two months generally, and the constant temperature and the constant humidity are required to be kept in a chicken house. The temperature of the young bird is kept between 30 and 330C, the breeding temperature of the adult chickens is 25-27 DEG0And C, controlling the humidity to be about 65%. 6 batches of chickens can be raised in one year, and the time for naturally meeting the temperature of the henhouse is short according to the temperature control standard of the henhouse, so that the constant temperature adjustment is needed. If a traditional air conditioning system is installed in a henhouse with the length of 90 meters to ensure the constant temperature and humidity of the air, the cost is too high. The cost is reduced, the temperature and humidity can be accurately controlled, the survival rate of the broiler chickens is improved, and the economic benefit can be improved. The key technical problems are troubling the process of raising the broiler chickens.
Therefore, how to overcome the defects that the regulation and control of the temperature and the humidity of the air in the existing large-scale farm are easy to pollute, the regulation of the temperature and the humidity is unqualified and the cost is high is a problem to be considered in the industry.
Disclosure of Invention
The invention provides an air conditioning system which is low in cost, proper in temperature and humidity adjustment and pollution-free, and aims to solve the problems that the regulation and control of the air temperature and humidity in the existing large-scale farm are easy to pollute, the temperature and humidity adjustment is unqualified and the cost is high.
The invention provides an air conditioning system, which comprises a cold field, an exhaust fan arranged at the air outlet end of the cold field, a wet curtain system arranged at the air inlet end of the cold field and a refrigerating system, wherein the wet curtain system comprises a cold air inlet pipe, a cold air outlet pipe, a cold air inlet pipe and a cold air outlet pipe; the fresh air is divided into two parts after passing through the wet curtain system, and the exhaust fan sucks the fresh air to enable the first part of air flow to enter the cooling field; and the second part of air flow enters the refrigerating system for cooling, then is input into a cold area of a cold field to be converged with the first part of air flow, and is subjected to air conditioning and humidity conditioning and finally is discharged from the air outlet end.
Further, the wet curtain system comprises: the wet curtains are arranged on the two sides of the air inlet end of the cold field, and the spraying device sprays water to the wet curtains.
Further, the spraying device comprises: the first water storage tank is higher than the wet curtain, communicated with the first water storage tank through an electromagnetic valve and arranged on the spray pipe above the wet curtain, the return water tank below the wet curtain, the second water storage tank communicated with the return water tank and the water pump communicated with the first water storage tank and the second water storage tank.
Furthermore, the second part of the air flow entering the refrigerating system passes through the coarse effect filtering section and then enters the surface cooling section to exchange heat to form cold air, and the cold air is sent to the cold using area by an air pipe.
Furthermore, the cold area comprises at least one cage frame device which is connected with the air inlet end of the cold field and extends towards the air outlet end of the cold field, an air pipe of the refrigerating system is arranged above the cage frame device along the length direction of the cage frame device, and the air pipe conveys cold air downwards into the cage frame device through uniformly distributed air regulating valves.
Furthermore, the cage frame device is divided into a plurality of layers from top to bottom, the orifice plate pipe is vertically arranged in the middle of the cage frame device, vertical plates on two sides of the orifice plate pipe are orifice plates with different opening rates, and the air pipe conveys cold air to the orifice plate pipe through the air volume adjusting valve.
Furthermore, the exhaust air volume of the exhaust fan is 50-80% greater than the air supply volume of the refrigeration system, so that the interior of the cooling field is negative pressure.
Furthermore, the flow velocity of the air flow from the air inlet end to the air outlet end in the cold field is 0.5-1 m/s.
Further, the air exhaust fan is a variable frequency fan.
The invention organically combines the wet curtain system and the refrigerating system, and carries out temperature and humidity adjustment on air in the large-scale cold field by elaborately setting the air duct flow. Compared with the traditional air conditioning system, the air conditioning system reduces the equipment cost, ensures the proper temperature of the cold field and reduces the humidity. And the dust in the room is effectively reduced, the emission of outdoor combustion waste gas is reduced, and the environment is improved. So that the production can be carried out with high efficiency by using the cooling field.
Drawings
FIG. 1 is a schematic top view of an embodiment of the present invention;
FIG. 2 is a schematic view of a projection structure of the air outlet end of FIG. 1;
FIG. 3 is a sectional view taken along the line A-A in FIG. 2;
FIG. 4 is a schematic view of the operation of the wet curtain system of the present invention;
FIG. 5 is a schematic workflow diagram of an embodiment of the present invention;
FIG. 6 is a schematic diagram of the distribution of the thermal imaging temperature of the cross section of the coop according to the embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples and figures.
Fig. 1 and fig. 2 show an embodiment of an air conditioning system according to the present invention. The air conditioning system is applied to temperature and humidity control of a three-dimensional chicken farm, and can also be applied to other large indoor spaces for planting plants or breeding organisms according to requirements. The cold area used in the embodiment is a large relatively closed three-dimensional chicken farm 1, the indoor cold area used in the cold area is four cage frame devices 2 which are arranged horizontally in parallel, and three layers of chicken cages 21 are arranged above and below each cage frame device. The cage device 2 extends from the air inlet end of the three-dimensional chicken farm 1 to the air outlet end of the three-dimensional chicken farm 1. According to the needs, more cage frame devices 2 can be arranged in the three-dimensional chicken farm 1, and each cage frame device 2 can also be provided with more layers of chicken cages 21.
As shown in fig. 1, 2 and 5, the right end of the three-dimensional chicken farm 1 of the present embodiment is an air outlet, and is provided with a variable-frequency exhaust fan 3. The left end of the three-dimensional chicken farm 1 is an air inlet end and is provided with a wet curtain system 4 and a refrigerating system 5. A wet curtain space 7 is arranged between the inner side of the wet curtain system 4 and the transverse side wall of the three-dimensional chicken farm 1-the shutter 6, the wet curtain space 7 is communicated with the three-dimensional chicken farm 1, and an air inlet pipeline 8 of the refrigerating system 5 is also communicated with the wet curtain space 7. Fresh air enters a wet curtain space 7 through a wet curtain system 4 and then is divided into two parts, a first part of air flow enters the three-dimensional chicken farm 1 under the suction of a variable-frequency exhaust fan 3, a second part of air flow enters a refrigerating system 5 through an air inlet pipeline 8 for cooling, then is input into each cage device 2 in the three-dimensional chicken farm 1 and is converged with the first part of air flow, the air of each cage device 2 is comprehensively subjected to temperature and humidity adjustment, and finally is discharged from an air outlet end at the right end of the three-dimensional chicken farm 1.
As shown in fig. 1, the wet curtain system 4 includes: wet curtains 41 respectively arranged on the two transverse side surfaces of the left air inlet end of the three-dimensional chicken farm 1, and a spraying device for spraying water to the wet curtains 41. As shown in fig. 4, the shower apparatus includes: a first water storage tank 43 arranged higher than the wet curtain 41, a spray pipe 45 communicated with the first water storage tank 43 through an electromagnetic valve 44 and arranged above the wet curtain 41, a water return groove 46 arranged below the wet curtain 41, a second water storage tank 47 communicated with the water return groove 46, and a water pump 42 for communicating the first water storage tank 43 and the second water storage tank 47. When the wet curtain system works, water in the second water storage tank is pumped to the first water storage tank through the water pump, then the water in the first water storage tank is uniformly distributed in the spray water pipe on the upper side of the wet curtain, and the size of the water outlet flow can be adjusted through the electromagnetic valve. The lower side of the spray header is provided with a water distribution disc with an equal-pressure outlet, water flows downwards through gravity and is fully distributed on the whole wet curtain filler, so that the filler area of the wet curtain is efficiently utilized, and heat exchange, humidification and the like of fresh air, water and a water film are realized. The hot water after heat exchange flows into a water return tank at the lower part and then returns to the second water storage tank.
As shown in fig. 1 to 3, the second part of the air flow sucked into the refrigeration system 5 by the unit fan passes through the coarse filtering section and then enters the surface cooling section to be heat-exchanged into cold air, and the cold air is sent to each cage device 2 by the air pipe 51. An air pipe 51 of the refrigerating system is arranged above the cage device 2 along the length direction of the cage device, and conveys cold air into the cage device 2 through uniformly distributed air volume adjusting valves 52. The cage frame device 2 is divided into three layers up and down, the pore plate pipe 53 is corresponding to the length of the air pipe 51 and is vertically and downwards arranged in the middle of the cage frame device 2, namely, the coop 21 is positioned at two sides of the pore plate pipe 53. The vertical plates at two sides of the pore plate pipe 53 are pore plates 54 with different opening rates, and the air pipe 51 conveys cold air into the pore plate pipe 53 through the air volume adjusting valve 52. Airflow from the refrigerating system passes through an air pipe which is positioned at the upper part of the orifice plate pipe and is equivalent to the static pressure box, and the air quantity regulating valve is regulated to uniformly supply air into the orifice plate pipe, so that the pressure balance in the horizontal direction is ensured; the two sides of the hole plate pipe in the vertical direction are provided with hole plates with different opening rates, so that the airflow balance in the vertical direction is adjusted, and finally the purpose of uniformly supplying air is achieved. The scheme solves the problem of uniform air distribution of the air conditioner, and simultaneously, the pore plate of the pore plate pipe of the air conditioning system is not easy to block by dirt such as chicken feather, feed, excrement and the like due to the negative pressure outside the pore plate.
When the temperature and humidity adjusting device works for temperature and humidity adjustment, the refrigerating system and the wet curtain system are controlled independently. And the suction air volume of the variable-frequency exhaust fan 3 is 50-80% larger than the air volume of the refrigerating system, and the negative pressure is ensured in the chicken farm, so that an airflow field with the airflow velocity of about 0.5-1 m/s is formed from the air inlet end to the air outlet end of the chicken house. A first part of the airflow entering the three-dimensional chicken farm 1 through the wet curtain space 7 bears most of the heat load and humidification of the environments such as chicken flocks, workers, mechanical equipment and the like in the three-dimensional chicken farm 1; because the wet curtain system also has a certain cooling function to the air, the second part of air flow output by the refrigerating system only bears the heat load and partial residual humidity of partial cooling of the coop, and the unnecessary energy consumption of the air conditioner is greatly reduced.
As shown in fig. 6, which is a schematic diagram of the cross-sectional temperature distribution of the coop, in this embodiment, the temperature and humidity of the coop are controlled, and the perforated plate air supply method using perforated plate pipes does not generate a too large blowing feeling (the air speed is controlled to be about 1 m/s) for the chicken. Compared with the method that the air in the mixing chamber is sent to the coop, the energy consumption is reduced, the uniformity of the air flow is ensured, and the temperature of the air around the chickens in the coop is 23-25 DEG C0And C, effectively and reliably reducing the ambient temperature. The embodiment combines evaporative refrigeration and compressed steam refrigeration cycle, can be widely applied to the regulation of the temperature and the humidity of air in large-scale cold farms such as intensive chicken farms and the like, and can meet the growth requirements of organisms well.
In different seasons and summer, the mode of the wet curtain system and the refrigeration system is adopted for working, namely, the exhaust fan is firstly started, the wet curtain water pump is then started, and the refrigeration and air conditioning system is then started. In transition seasons, only the air exhaust fan needs to be started, and the air conditioning system starts a ventilation mode. When the noon temperature rises, the wet curtain water pump is opened discontinuously. In winter, the air exhaust fan is locally started, and the air conditioner starts a heating mode.
The above-mentioned embodiments are mainly intended to illustrate the inventive concept, and it should be noted that those skilled in the art may make various changes and modifications without departing from the inventive concept, and all such changes and modifications are within the scope of the present invention.
Claims (8)
1. An air conditioning system comprises a cold field, and is characterized in that an exhaust fan arranged at an air outlet end of the cold field, a wet curtain system arranged at an air inlet end of the cold field and a refrigerating system are arranged; the fresh air is divided into two parts after passing through the wet curtain system, and the exhaust fan sucks the fresh air to enable the first part of air flow to enter the cooling field; after the second part of air flow is sucked into the refrigerating system for cooling, the second part of air flow is input into a cold area of a cold field for merging with the first part of air flow, the temperature and humidity of the air of the cold field are adjusted, and finally the air is discharged from the air outlet end; the exhaust volume of the exhaust fan is 50-80% greater than the air supply volume of the refrigeration system, so that the interior of the cooling field is negative pressure.
2. The air conditioning system of claim 1, wherein the wet curtain system comprises: the wet curtains are arranged on the two sides of the air inlet end of the cold field, and the spraying device sprays water to the wet curtains.
3. The air conditioning system as claimed in claim 2, wherein said spray means comprises: the first water storage tank is higher than the wet curtain, communicated with the first water storage tank through an electromagnetic valve and arranged on the spray pipe above the wet curtain, the return water tank below the wet curtain, the second water storage tank communicated with the return water tank and the water pump communicated with the first water storage tank and the second water storage tank.
4. The air conditioning system of claim 1 wherein a second portion of the air stream entering the refrigeration system passes through the coarse filtration stage and then enters the surface cooling stage to be heat exchanged into a cold air stream, which is ducted to the cold use area.
5. The air conditioning system of claim 4, wherein said cold-using area includes at least one cage device connected to said cold-using site air inlet end and extending toward said cold-using site air outlet end, and said cooling system air duct is located above said cage device and arranged along the length direction of said cage device and delivers said cool air into said cage device through uniformly distributed air volume adjusting valves.
6. The air conditioning system as claimed in claim 5, wherein said cage means is divided into a plurality of layers, an orifice pipe is vertically disposed in the center of said cage means, the risers on both sides of said orifice pipe are orifices having different opening ratios, and said air duct supplies said cool air to said orifice pipe through said air volume adjusting valve.
7. The air conditioning system as claimed in claim 1, wherein the flow velocity of the air flow from the air inlet end to the air outlet end in the cooling field is 0.5-1 m/s.
8. The air conditioning system of claim 1, wherein the exhaust fan is a variable frequency fan.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368232.1A CN111084119B (en) | 2019-12-26 | 2019-12-26 | Environment-friendly and efficient temperature and humidity adjusting air conditioning system applied to large-scale cold field room |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911368232.1A CN111084119B (en) | 2019-12-26 | 2019-12-26 | Environment-friendly and efficient temperature and humidity adjusting air conditioning system applied to large-scale cold field room |
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| CN111084119A CN111084119A (en) | 2020-05-01 |
| CN111084119B true CN111084119B (en) | 2020-11-24 |
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| CN201911368232.1A Active CN111084119B (en) | 2019-12-26 | 2019-12-26 | Environment-friendly and efficient temperature and humidity adjusting air conditioning system applied to large-scale cold field room |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1470793A (en) * | 1974-01-15 | 1977-04-21 | Stat Pentru Cresterea Ind A Po | Ventialtion of lifestock houses |
| DE3209569A1 (en) * | 1982-03-16 | 1983-09-29 | Fidel 7988 Wangen Netzer jun. | Arrangement for air-conditioning buildings, in particular stalls |
| CN204757183U (en) * | 2015-06-05 | 2015-11-11 | 广东海悟科技有限公司 | New trend air conditioner |
| CN110268997A (en) * | 2019-08-10 | 2019-09-24 | 河南万华畜牧设备有限公司 | 4 layers of thermostatic type intelligence henhouse |
| CN110313413A (en) * | 2019-08-10 | 2019-10-11 | 河南万华畜牧设备有限公司 | 8 layers of thermostatic type intelligence henhouse |
| CN209518098U (en) * | 2018-12-05 | 2019-10-22 | 广州广兴牧业设备集团有限公司 | A kind of pouity dwelling place aeration cooling system |
| CN110367127A (en) * | 2019-08-26 | 2019-10-25 | 程远虎 | A kind of livestock and poultry central air-conditioning and livestock and poultry house |
-
2019
- 2019-12-26 CN CN201911368232.1A patent/CN111084119B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1470793A (en) * | 1974-01-15 | 1977-04-21 | Stat Pentru Cresterea Ind A Po | Ventialtion of lifestock houses |
| DE3209569A1 (en) * | 1982-03-16 | 1983-09-29 | Fidel 7988 Wangen Netzer jun. | Arrangement for air-conditioning buildings, in particular stalls |
| CN204757183U (en) * | 2015-06-05 | 2015-11-11 | 广东海悟科技有限公司 | New trend air conditioner |
| CN209518098U (en) * | 2018-12-05 | 2019-10-22 | 广州广兴牧业设备集团有限公司 | A kind of pouity dwelling place aeration cooling system |
| CN110268997A (en) * | 2019-08-10 | 2019-09-24 | 河南万华畜牧设备有限公司 | 4 layers of thermostatic type intelligence henhouse |
| CN110313413A (en) * | 2019-08-10 | 2019-10-11 | 河南万华畜牧设备有限公司 | 8 layers of thermostatic type intelligence henhouse |
| CN110367127A (en) * | 2019-08-26 | 2019-10-25 | 程远虎 | A kind of livestock and poultry central air-conditioning and livestock and poultry house |
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| CN111084119A (en) | 2020-05-01 |
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