CN115836665A - Zero-energy livestock and poultry breeding method and breeding system thereof - Google Patents
Zero-energy livestock and poultry breeding method and breeding system thereof Download PDFInfo
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- CN115836665A CN115836665A CN202211096397.XA CN202211096397A CN115836665A CN 115836665 A CN115836665 A CN 115836665A CN 202211096397 A CN202211096397 A CN 202211096397A CN 115836665 A CN115836665 A CN 115836665A
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Abstract
The invention provides a zero-energy livestock and poultry breeding method and a breeding system thereof, comprising the following steps: step 1, precooling or preheating and filtering fresh air outside a house by an air inlet precooling and preheating unit, and then feeding the fresh air into an air inlet pressure chamber; step 2, after air flow in the air inlet pressure chamber is uniform and the pressure is stable, the air enters the central air duct through the EC fan; step 3, air in the central air duct enters the livestock and poultry house through the roof air inlet window; and 4, enabling waste gas generated in the livestock and poultry house to enter an exhaust pressure chamber, treating the waste gas by an organic waste gas treatment unit, exhausting clean air into the atmosphere, and recycling heat by a heat recovery unit.
Description
Technical Field
The invention belongs to the technical field of zero-energy livestock breeding, and particularly relates to a zero-energy livestock breeding method and a zero-energy livestock breeding system.
Background
At present, with the development of the livestock industry, the livestock and poultry breeding industry gradually changes from distributed breeding to large-scale breeding. Although the large-scale cultivation has the advantages of high yield, high benefit and the like, the problems of high energy consumption and high pollution are also brought. This is a large cost waste for the breeding enterprises. The development of low-carbon cultivation has important significance for finally realizing the win-win goal of animal husbandry development and ecological environment protection.
The existing livestock and poultry breeding system is single in use of new energy technology or heat recovery technology, does not consider the whole energy consumption of the breeding period, is in a zero star shape, is fragmented, has low efficiency, and wastes a large amount of energy.
Disclosure of Invention
The invention provides a zero-energy livestock and poultry breeding method and a breeding system thereof, which realize the effect of reducing the conventional energy consumption in the breeding process or even not consuming the conventional energy.
The technical scheme of the invention is realized as follows: a zero-energy livestock and poultry breeding method comprises the following steps:
step 1, precooling or preheating and filtering fresh air outside a house by an air inlet precooling and preheating unit, and then feeding the fresh air into an air inlet pressure chamber;
and 4, enabling waste gas generated in the livestock and poultry house to enter an exhaust pressure chamber, treating the waste gas by an organic waste gas treatment unit, and then exhausting clean air into the atmosphere to recycle heat.
A breeding system used in a zero-energy livestock breeding method comprises:
the air inlet pre-cooling preheating unit sequentially comprises a three-proofing net, an air inlet pre-cooling preheating module and a first filter from outside to inside;
the air inlet pressure chamber is arranged at the inner side of the first filter;
the central air duct is arranged at the top of the livestock and poultry house, the central air duct and the livestock and poultry house are communicated through a roof air inlet window, and the air inlet pressure chamber is arranged at the outer side of the livestock and poultry house;
the air exhaust pressure chamber is arranged outside the livestock and poultry house;
and the organic waste gas treatment unit is communicated with the outside of the exhaust pressure chamber and is used for decomposing waste gas into clean air and heat.
As a preferred embodiment, the intake precooling and preheating module comprises a heat exchange pipeline, a water collecting chamber is connected and arranged on two sides of the heat exchange pipeline, a water inlet is arranged at one end of the water collecting chamber, and a water outlet is arranged at the other end of the water collecting chamber.
In a preferred embodiment, the central air duct and the air inlet pressure chamber are communicated through the EC fan, and the livestock and poultry house and the air outlet pressure chamber are communicated through a unit air valve.
In a preferred embodiment, a first pressure sensor is disposed in the central air duct, a second pressure sensor is disposed in the poultry house, and a positive pressure difference is provided between the central air duct and the poultry house.
As a preferred embodiment, the organic waste gas treatment unit comprises an organic waste gas treatment module, a waste gas inlet is arranged at the bottom of the side surface of the organic waste gas treatment module, the waste gas inlet is communicated with the exhaust pressure chamber, a spray pipeline is arranged at the top end of the organic waste gas treatment module, spray headers are uniformly distributed at the bottom end of the spray pipeline, and an air outlet is arranged at the top of the organic waste gas treatment module.
As a preferred embodiment, a waste gas cleaning liquid storage tank is arranged on one side of the organic waste gas treatment module, and a liquid outlet of the waste gas cleaning liquid storage tank is communicated with the spray pipeline.
As a preferred embodiment, a heat recovery unit is disposed on one side of the organic waste gas treatment unit, a clear water storage tank is disposed on one side of the heat recovery unit, a water inlet of the clear water storage tank is communicated with a water outlet of the water collection chamber, the heat recovery unit includes a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the water outlet of the clear water storage tank, the second inlet is communicated with a liquid outlet of the organic waste gas treatment module, and the second outlet is communicated with a liquid inlet of the waste gas cleaning storage tank.
As a preferred embodiment, a heat pump unit is disposed on one side of the heat recovery unit, a water inlet of the heat pump unit is communicated with the first outlet of the heat recovery unit, and a water outlet of the heat pump unit is communicated with a water inlet of the water collecting chamber.
As a preferred embodiment, the roof of the livestock and poultry house is provided with a solar photovoltaic power generation unit, and the solar photovoltaic power generation unit comprises a plurality of solar photovoltaic power generation boards.
After the technical scheme is adopted, the invention has the beneficial effects that:
the invention reduces the electric energy consumption of the whole culture system as much as possible by recycling the waste gas heat of the livestock and poultry house, a heat pump technology and a high-efficiency energy-saving EC fan, and finally achieves the aim of zero-energy culture by adopting solar photovoltaic power generation as a system supplementary electric energy source.
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, and 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 these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a control schematic diagram of an EC blower;
FIG. 3 is a schematic view of an installation structure of an EC fan;
FIG. 4 is a schematic diagram of a thermal cycle;
FIG. 5 is a schematic view of the organic waste gas treatment module;
FIG. 6 is a schematic diagram of the effect of zero energy farming.
In the figure, 1-air inlet precooling and preheating module; 2-an air inlet pressure chamber; 3-EC fan; 4-a central air duct; 5-roof air inlet windows; 6-livestock and poultry house; 7-unit air valve; 8-an exhaust pressure chamber; 9-an organic wastewater treatment unit; 10-a heat recovery unit; 11-a heat pump unit; 12-a solar photovoltaic power generation unit; 14-a waste gas cleaning liquid storage tank; 15-clear water storage tank; 16-a first pressure sensor; 17-a second pressure sensor; a-waste gas; 18-a three-proofing mesh; 19-a first filter; 22-a shower head; 24-a recovery tank; 26-a second filter; 27-droplet separator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
As shown in fig. 1 to 6, a zero energy livestock and poultry farming system includes:
the air inlet pre-cooling preheating unit comprises an air inlet pre-cooling preheating module 1, a three-proofing net 18 and a first filter 19, wherein the air inlet pre-cooling preheating module is arranged on the outer side of the three-proofing net, and the first filter is arranged on the inner side of the air inlet hot-cold preheating module 1;
after the external air passes through the three-proofing net, the air is pre-cooled or pre-heated through the air inlet pre-cooling and pre-heating module, the pre-cooling or pre-heating is determined according to the current weather temperature, and cold water or hot water is filled into the air inlet pre-cooling and pre-heating module to achieve the pre-cooling or pre-heating effect.
The air inlet pressure chamber 2 is arranged at the inner side of the first filter;
the air after precooling or preheating treatment passes through the first filter and then enters the air inlet pressure chamber, and the first filter is used for removing impurities such as dust in the air.
In addition, the air inlet pressure chamber adopts a height drop type design, namely, the installation position of the EC fan and the position of the filter have a certain height difference, the size of the pressure chamber is designed through calculation and software simulation according to the culture quantity and the minimum respiratory quantity parameters, so that the air is mixed in enough space in the pressure chamber, and the air flow is uniform and stable.
The central air duct 4 is arranged at the top of the livestock and poultry house 6, the central air duct 4 and the livestock and poultry house 6 are communicated through a roof air inlet window 5, and the air inlet pressure chamber 2 is arranged at the outer side of the livestock and poultry house 6;
an exhaust pressure chamber 8 provided outside the livestock house 6;
when waste gas enters the exhaust pressure chamber, dynamic pressure is converted into static pressure, the static pressure is fully mixed in the pressure chamber designed through calculation and software simulation, and the purposes of achieving uniform and stable air flow, wherein the mode is consistent with that in the air inlet pressure chamber and is a common technical means in the prior art, so that redundant description is not repeated here, and the purpose is that the treatment effect of the waste gas through the organic waste gas treatment module is optimal.
And the organic waste gas treatment unit 9 is communicated with the outer side of the exhaust pressure chamber 8 and is used for decomposing waste gas into clean air and heat.
The air inlet precooling preheating module comprises a heat exchange pipeline, a water collecting chamber is connected and arranged on two sides of the heat exchange pipeline, a water inlet is formed in one end of the water collecting chamber, and a water outlet is formed in the other end of the water collecting chamber.
The central air duct 4 is communicated with the air inlet pressure chamber 2 through an EC fan 3, and the livestock and poultry house 6 is communicated with the air outlet pressure chamber 8 through a unit air valve 7.
A first pressure sensor is arranged in the central air duct 4, a second pressure sensor is arranged in the livestock and poultry house 6, and positive pressure difference is formed between the central air duct 4 and the livestock and poultry house 6.
The organic waste gas treatment unit 9 comprises an organic waste gas treatment module, a waste gas inlet is formed in the bottom end of the side face of the organic waste gas treatment module, the waste gas inlet is communicated with the exhaust pressure chamber 8, a spray pipeline is arranged on the top end of the organic waste gas treatment module, spray heads are uniformly distributed at the bottom end of the spray pipeline, and an air outlet is formed in the top of the organic waste gas treatment module.
One side of the organic waste gas treatment module is provided with a waste gas cleaning liquid storage tank 14, a water solution containing sulfuric acid or citric acid is stored in the waste gas cleaning liquid storage tank 14, a liquid outlet of the waste gas cleaning liquid storage tank 14 is communicated with the spraying pipeline, the water solution containing sulfuric acid or citric acid sprays waste gas through the spraying head, the sprayed gas is subjected to gas-liquid separation through the liquid drop separator, the liquid falls into the bottom, and the treated clean air is discharged through an air outlet. The organic waste gas treatment module is also internally provided with a second filter, and the use of the second filter and the use of the liquid drop separator are common technical means in the prior art, so that redundant description is not repeated here.
One side of the organic waste gas treatment unit 9 is provided with a heat recovery unit 10, one side of the heat recovery unit 10 is provided with a clear water liquid storage tank 15, a water inlet of the clear water liquid storage tank 15 is communicated with a water outlet of the water collecting chamber, the heat recovery unit 10 comprises a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the water outlet of the clear water liquid storage tank 15, the second inlet is communicated with a liquid outlet of the organic waste gas treatment module, and the second outlet is communicated with a liquid inlet of the waste gas cleaning liquid storage tank 14.
One side of the heat recovery unit 10 is provided with a heat pump unit 11, a water inlet of the heat pump unit 11 is communicated with a first outlet of the heat recovery unit 10, and a water outlet of the heat pump unit 11 is communicated with a water inlet of the water collecting chamber.
The top of the central air duct 4 is provided with a solar photovoltaic power generation unit 12, and the solar photovoltaic power generation unit 12 comprises a plurality of solar photovoltaic power generation boards.
Fresh air outside the livestock and poultry house 6 is precooled or preheated and filtered by an air inlet precooling and preheating unit 1, enters an air inlet pressure chamber 2 to enable air flow to be uniform and pressure to be stable, and is sent into a central air duct 4 on the roof of the livestock and poultry house 6 through a high-efficiency high-pressure EC fan 3, and then enters the livestock and poultry house 6 through a roof air inlet window 5, waste gas generated by livestock and poultry cultivation is discharged to an air exhaust pressure chamber 8 at the other end of the livestock and poultry house 6 through a unit air valve 7 in the house, and finally is discharged into the atmosphere after being treated by an organic waste gas treatment unit 9 to reach the standard.
The organic waste gas treatment unit 9 is used for treating waste gas by spraying cleaning liquid towards the waste gas, the treated clean air is discharged from an air outlet, the temperature of the waste gas generated by livestock and poultry breeding can reach 38 ℃, the heat in the waste gas is transferred into the cleaning liquid after being treated by the organic waste gas treatment unit 9, and the cleaning liquid with heat transfers the heat into the clean water through the heat recovery unit 10 and then returns to the waste gas cleaning liquid storage tank 14. The clean water with heat is used as a water inlet heat source of the heat pump unit 11, so that the working efficiency of the heat pump unit 11 is improved, and the energy consumption is reduced.
The high-efficiency high-pressure EC fan 3 is directly connected with a fan opening on a wall body, the installation is convenient and rapid, the high-efficiency high-pressure EC fan 3 adopts a dynamic multi-step control technology, the fan can run in a low-speed area for as long as possible in a culture period, the air quantity is gradually increased step by step according to the actual ventilation requirement, the linear accurate ventilation is realized, the energy consumption is reduced to the maximum extent, and compared with the conventional fan product and the ventilation mode, the energy consumption can be saved by about 70-80%.
According to the roof air inlet window 5, the opening degree of the air inlet window is adjusted according to the air quantity requirement, and the ventilation requirement is guaranteed. Positive pressure difference control is adopted between the central air duct 4 and the livestock and poultry house 6, and outside air which is not pretreated can not enter the house, so that the biological safety of livestock and poultry is ensured. A first pressure sensor arranged in the central air duct 4 is used for detecting the pressure in the central air duct 4, a second pressure sensor arranged in the livestock and poultry house 6 is used for detecting the pressure in the livestock and poultry house 6, so that positive pressure difference is kept, the pressure P1 in the central air duct 4 is kept by the high-efficiency high-pressure EC fan 3, the pressure P2 in the livestock and poultry house 6 is kept by the unit air valve 7 at a certain opening degree, and the temperature T in the livestock and poultry house is kept by the opening degree of the roof air inlet window 5.
The unit air valve 7 is provided with an air volume detection module, the air volume detection module transmits a pulse signal to the controller, the controller is an environment-friendly livestock and poultry house controller, the environment-friendly controller sends a signal to the unit air valve 7 and the roof air inlet window 5 according to the actual ventilation requirement, and the opening of the valve is controlled.
The operation of high-efficient high-pressure EC fan 3 is controlled by central ring accuse ware, and central ring accuse ware and animal house ring accuse ware electricity are connected and are set up, realize the accurate ventilation of every animal house 6. The air exhaust pressure chamber 8 of the invention has the functions of stabilizing air flow and reducing air speed, and improves the treatment effect of the organic waste gas treatment unit 9, and because the air valve 7, the roof air inlet window 5, the EC fan 3 and the environmental controller are common technical means in the prior art, the redundant description is not repeated here.
The organic waste gas treatment unit 9 adopted by the invention is composed of modules such as a filter, a spraying system, a liquid drop separator, a controller and the like, adopts a chemical, biological or combined treatment process to treat dust, ammonia gas, odor, aerosol and other harmful substances in the waste gas, and ensures that the emission reaches the standard.
The cold water or hot water generated by the heat pump unit 11 is used for inlet air precooling or preheating of the livestock and poultry house 6, the temperature and humidity in the house are controlled, the ventilation requirement in the house is reduced as much as possible, the energy is saved to the maximum extent, and the climate environment of the livestock and poultry house 6 is improved. In the ventilation link of the livestock and poultry house 6, fresh air is sent into the central air duct 4 by using IE4 and the high-efficiency high-pressure EC blower 3 with the energy efficiency requirement adjustable in speed, so that the electric energy consumption is reduced to the maximum extent, and as the heat pump unit 11 is a common technical means in the prior art, the redundant description is not repeated here.
The invention also lays a solar photovoltaic power generation board on the roof of the livestock and poultry house 6, and utilizes clean and renewable solar energy as the supplementary energy of the whole breeding system. The whole culture system does not consume conventional energy, the energy demand in the culture process is supplemented by solar energy, the aim of 'zero-energy culture' is achieved, and because the energy supplement by the solar energy is a common technical means in the prior art, the method is not described in detail herein.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A zero-energy livestock and poultry breeding method is characterized by comprising the following steps:
step 1, precooling or preheating and filtering fresh air outside a house by an air inlet precooling and preheating unit, and then feeding the fresh air into an air inlet pressure chamber;
step 2, after air flow in the air inlet pressure chamber is uniform and the pressure is stable, air enters the central air duct through the EC fan;
step 3, air in the central air duct enters the livestock and poultry house through the roof air inlet window;
and 4, enabling waste gas generated in the livestock and poultry house to enter an exhaust pressure chamber, treating the waste gas by an organic waste gas treatment unit, and then exhausting clean air into the atmosphere to recycle heat.
2. A breeding system for a zero energy livestock breeding method according to claim 1, characterized by comprising:
the air inlet pre-cooling preheating unit sequentially comprises a three-proofing net, an air inlet pre-cooling preheating module and a first filter from outside to inside;
the air inlet pressure chamber is arranged at the inner side of the first filter;
the central air duct is arranged at the top of the livestock and poultry house, the central air duct and the livestock and poultry house are communicated through a roof air inlet window, and the air inlet pressure chamber is arranged at the outer side of the livestock and poultry house;
the air exhaust pressure chamber is arranged outside the livestock and poultry house;
and the organic waste gas treatment unit is communicated with the outside of the exhaust pressure chamber and is used for decomposing waste gas into clean air and heat.
3. The zero-energy livestock and poultry breeding system according to claim 2, wherein the intake precooling and preheating module comprises a heat exchange pipeline, water collecting chambers are connected to two sides of the heat exchange pipeline, a water inlet is arranged at one end of each water collecting chamber, and a water outlet is arranged at the other end of each water collecting chamber.
4. The zero-energy livestock and poultry breeding system according to claim 2, wherein the central air duct and the air inlet pressure chamber are communicated through the EC fan, and the livestock and poultry house and the air outlet pressure chamber are communicated through a unit air valve.
5. The zero-energy livestock and poultry breeding system according to claim 2, wherein a first pressure sensor is arranged in the central air duct, a second pressure sensor is arranged in the livestock and poultry house, and a positive pressure difference is formed between the central air duct and the livestock and poultry house.
6. The zero-energy livestock and poultry breeding system according to claim 3, wherein the organic waste gas treatment unit comprises an organic waste gas treatment module, a waste gas inlet is formed in the bottom of the side face of the organic waste gas treatment module and communicated with the exhaust pressure chamber, a spraying pipeline is arranged at the top end of the organic waste gas treatment module, spraying heads are uniformly distributed at the bottom end of the spraying pipeline, and an air outlet is formed in the top of the organic waste gas treatment module.
7. The zero-energy livestock and poultry breeding system according to claim 6, wherein a waste gas cleaning liquid storage tank is arranged on one side of the organic waste gas treatment module, and a liquid outlet of the waste gas cleaning liquid storage tank is communicated with the spraying pipeline.
8. The zero-energy livestock and poultry breeding system according to claim 7, wherein a heat recovery unit is arranged on one side of the organic waste gas treatment unit, a clear water storage tank is arranged on one side of the heat recovery unit, a water inlet of the clear water storage tank is communicated with a water outlet of the water collecting chamber, the heat recovery unit comprises a first inlet, a second inlet, a first outlet and a second outlet, the first inlet is communicated with the water outlet of the clear water storage tank, the second inlet is communicated with a liquid outlet of the organic waste gas treatment module, and the second outlet is communicated with a liquid inlet of the waste gas cleaning storage tank.
9. The zero-energy livestock and poultry breeding system according to claim 8, wherein a heat pump unit is arranged on one side of the heat recovery unit, a water inlet of the heat pump unit is communicated with a first outlet of the heat recovery unit, and a water outlet of the heat pump unit is communicated with a water inlet of the water collecting chamber.
10. The zero-energy livestock and poultry breeding system according to claim 2, wherein a solar photovoltaic power generation unit is arranged on the roof of the livestock and poultry house, and comprises a plurality of solar photovoltaic power generation boards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211096397.XA CN115836665A (en) | 2022-09-08 | 2022-09-08 | Zero-energy livestock and poultry breeding method and breeding system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211096397.XA CN115836665A (en) | 2022-09-08 | 2022-09-08 | Zero-energy livestock and poultry breeding method and breeding system thereof |
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| Application Number | Title | Priority Date | Filing Date |
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