Precise ventilation system of large-span livestock and poultry house
The precision ventilation system for large-span livestock and poultry houses solves the problems of uneven ventilation and low equipment utilization in existing technologies, achieving uniform ventilation and exhaust gas treatment throughout the year, improving air quality and land use efficiency in livestock and poultry houses, and enhancing the health and comfort of livestock and poultry.
Patent Information
- Application Number
- CN202520049120.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The existing ventilation methods in livestock and poultry houses result in uneven wind speed, uneven temperature distribution, poor air quality, and low equipment utilization, making it difficult to meet the land resource utilization efficiency requirements of large-scale livestock and poultry houses.
The large-span livestock and poultry house adopts a precision ventilation system, including the left outer transverse wall, right outer transverse wall, inner transverse wall, ceiling, ventilation pipes, axial flow exhaust fan and exhaust gas treatment room. Through vertical ventilation mode and precise air distribution, combined with wet curtain and three-proof net pre-treatment of fresh air, exhaust gas is treated and discharged outside the house, achieving uniform ventilation and exhaust gas treatment throughout the year.
It achieves precise ventilation and temperature uniformity in livestock and poultry houses, improves the comfort and health of livestock and poultry, reduces the accumulation of harmful gases, increases the number of pens in livestock and poultry houses, saves building area, improves the working environment of farmers, and improves land use efficiency and equipment utilization.
Smart Images
Figure CN223652922U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of breeding equipment, especially a precise ventilation system of large-span livestock and poultry house. BACKGROUND
[0002] With the development of factory and intensive production of farms, the requirement for land resource use efficiency is higher and higher. In the design of livestock and poultry house, a common problem is that the temperature and wind speed are not uniform in front and back, which leads to that the length of livestock and poultry house is usually controlled within 50 meters. Taking sow farrowing house as an example, in order to ensure the ventilation and cooling effect, the farrowing house is usually designed to contain 56 sow beds per unit. However, with the increasing requirement for land resource use efficiency, it is urgent to increase the size of livestock and poultry house to accommodate more stalls.
[0003] In addition, most of the existing livestock and poultry houses adopt longitudinal ventilation mode to meet the internal ventilation demand, but this method has high requirement for wind speed, which often leads to problems such as low wind speed in the active space of sow bed, uneven temperature distribution and poor air quality in practical application. In addition, the livestock and poultry house with longitudinal ventilation mode relies on water curtain system for tunnel ventilation in summer and relies on attic air inlet and ceiling small window air outlet in winter, which leads to low utilization rate of the equipment used seasonally. SUMMARY
[0004] In order to overcome one of the technical defects or defects in the prior art, the utility model discloses a precise ventilation system of large-span livestock and poultry house, and the technical scheme adopted is:
[0005] A precise ventilation system of large-span livestock and poultry house, comprising a livestock and poultry house, wherein the livestock and poultry house comprises a left transverse wall, a right transverse wall, an upper longitudinal wall and a lower longitudinal wall, a plurality of sow beds are arranged in the livestock and poultry house along the longitudinal direction, a plurality of manure trenches separated by manure leakage plates are arranged under each column of sow beds, different from the prior art, a left outer transverse wall and a right outer transverse wall are arranged outside the left transverse wall and the right transverse wall respectively, an inner transverse wall not connected with the roof is arranged in the left transverse wall, a ceiling connected with the top end of the inner transverse wall and the inner side of the right transverse wall is arranged in the livestock and poultry house, and a waste gas treatment room is formed between the right transverse wall and the right outer transverse wall; a three-proofing net is arranged on the left outer transverse wall, a wet curtain is arranged on the left transverse wall, a ventilation pipe facing the livestock and poultry is arranged on the ceiling corresponding to each sow bed, the right ends of all the manure trenches are communicated with the waste gas treatment room, and a plurality of axial flow induced draft fans are arranged on the right outer transverse wall.
[0006] Further, a plurality of manually opened air outlets are formed in the ceiling.
[0007] Further, the three-proofing net is a stainless steel net with a mesh number of 20-32, which is used for preventing birds, mosquitoes and rats from entering.
[0008] Further, the wet curtain is detachable and equipped with an automatic water supply system.
[0009] Further, the ventilation pipe extends vertically downward to be close to the delivery bed, and the opening degree and wind direction are adjustable.
[0010] Further, a temperature sensor is further included for monitoring the temperature in the livestock and poultry house, and the axial flow induced draft fan has a frequency conversion function, and can automatically adjust the rotating speed of the axial flow induced draft fan according to the temperature change, so that the energy saving and the precise control of the ventilation effect are realized.
[0011] Further, a wet scrubber is installed in the exhaust gas treatment room, and the wet scrubber comprises a filter and an acid solution spraying system.
[0012] Compared with the prior art, the beneficial technical effects of the utility model are:
[0013] 1. Precise ventilation and cooling: the fresh air is pretreated through the three-proofing net and the wet curtain, and is directly sent to the pig position through the ventilation pipe in the area of the ceiling, so that the precision and uniformity of ventilation are ensured, and the temperature in the livestock and poultry house is effectively reduced.
[0014] 2. Year-round vertical ventilation mode: the filtered fresh air is uniformly distributed to the livestock and poultry living area in the year-round vertical ventilation mode, so that the temperature difference and the ventilation dead angle are avoided, and the comfort and health level of the livestock and poultry are improved.
[0015] 3. Improve the working environment of the feeders: the ceiling air outlet window is manually opened, and in summer, low-temperature wind speed can be provided for the feeders in the house, so that the working environment of the feeders is improved.
[0016] 4. Adjust the direction of the ventilation port: the direction of the ventilation port in the livestock and poultry house can be adjusted, so that the suitable wind speed and temperature are provided for the sows in the delivery bed, and the environment is more comfortable and uniform.
[0017] 5. Reduce the accumulation of harmful gases: under the year-round vertical ventilation mode, the exhaust gas is discharged into the manure ditch through the manure leakage plate and is discharged outside the house by the fan, so that the accumulation of harmful gases such as ammonia in the end of the livestock and poultry house is effectively avoided, and the air quality in the livestock and poultry house is improved.
[0018] 6. Improve the land resource utilization efficiency: through the optimization of the ventilation mode, the number of stalls can be doubled, for example, the size of the large-span pig house can be 50m*15m, the number of delivery beds in the unit can be increased to 104, the building area is saved, the equipment investment is reduced, and the ventilation effect is improved.
[0019] 7. Reduce the spread of diseases: due to the single flow direction of the air flow, each sow can breathe enough fresh air at the same time, and the probability of cross-infection of diseases through the air flow is reduced.
[0020] In summary, the utility model not only improves the ventilation efficiency in the livestock and poultry house and the health level of livestock and poultry, but also optimizes the land use efficiency and breeding cost, and provides an effective solution for modern breeding industry. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a structural schematic view of the utility model.
[0022] Figure 2 Is Figure 1 Sectional view along the ceiling. DETAILED DESCRIPTION
[0023] In the description of the utility model, it needs to be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0024] In the description of the utility model, it needs to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "communication" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0025] The embodiments of the utility model will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled persons in the art without creative labor belong to the scope of protection of the utility model.
[0026] As shown in the accompanying Figures 1-2The precision ventilation system of a large-span livestock and poultry house shown comprises a livestock and poultry house 100, the livestock and poultry house 100 comprising a left transverse wall 101, a right transverse wall 102, an upper longitudinal wall 103 and a lower longitudinal wall 104, 4 rows of 26 farrowing pens 105 being arranged longitudinally in the livestock and poultry house 100, 4 manure trenches 106 being separated by manure troughs under the farrowing pens 105 in each row, a left outer transverse wall 107 and a right outer transverse wall 108 being arranged outside the left transverse wall 101 and the right transverse wall 102 respectively, an inner transverse wall 109 being arranged in the left transverse wall 101 without connecting to the roof, a suspended ceiling 110 being arranged in the livestock and poultry house 100 and connecting to the top of the inner transverse wall 109 and the inner side of the right transverse wall 102, a waste gas treatment room 114 being formed between the right transverse wall 102 and the right outer transverse wall 108, a three-proofing net 111 being arranged on the left outer transverse wall 107, a wet curtain 112 being arranged on the left transverse wall 101, one ventilation pipe 113 facing the livestock and poultry being arranged on the suspended ceiling 110 corresponding to each farrowing pen 105, the right ends of all the manure trenches 106 being communicated with the waste gas treatment room 114, and 6 axial flow induced draft fans 115 being arranged on the right outer transverse wall 108. In architecture, a transverse wall is a wall arranged along the width direction of a building, and a longitudinal wall is a wall arranged along the length direction of a building.
[0027] The working process of the precision ventilation system of a farrowing livestock and poultry house is as follows:
[0028] 1. Fresh air introduction and pretreatment:
[0029] The external air first passes through the three-proofing net 111 on the left outer transverse wall 107 to prevent birds, mosquitoes, flies and mice from entering the livestock and poultry house 100.
[0030] The air filtered by the three-proofing net continues to pass through the wet curtain 112 on the left transverse wall 101 for pre-cooling and humidification treatment.
[0031] 2. Fresh air distribution:
[0032] The pretreated fresh air passes through the area above the suspended ceiling 110 and is evenly distributed to the upper side of each farrowing pen 105 through the 104 ventilation pipes 113 arranged on the suspended ceiling, to provide fresh air for the sows and piglets.
[0033] 3. Waste gas collection and discharge:
[0034] The waste gas in the livestock and poultry house is collected by the manure trenches 106 separated by the manure troughs under the farrowing pens 105.
[0035] The right ends of all the manure trenches 106 are communicated to the waste gas treatment room 114, and the waste gas is treated in the waste gas treatment room.
[0036] 4. Waste gas treatment:
[0037] The exhaust gas treatment room 114 is equipped with an axial flow fan 115 to extract exhaust gas from the livestock and poultry house, and after treatment, it is discharged outside the house to reduce the accumulation of harmful gases such as ammonia.
[0038] The entire system ensures the optimization of air quality in the farrowing house through precise ventilation design, while improving land use efficiency and the comfort of the breeding environment, providing a healthier and more comfortable living environment for sows and piglets.
[0039] In another preferred embodiment, the ceiling 110 is provided with a plurality of manually opened air outlets 116. The air outlet 116 allows the adjustment of ventilation according to the actual needs in different seasons or different climate conditions, provides low temperature wind speed for the personnel in the house, and improves the working environment of the personnel.
[0040] In another preferred embodiment, the three-proof net 111 is a stainless steel mesh with a mesh number of 20-32, which effectively prevents birds, mosquitoes, flies and mice from entering the livestock and poultry house, reduces the risk of disease transmission, and the stainless steel material is durable, reducing maintenance costs.
[0041] In another preferred embodiment, the wet curtain 112 is detachable and equipped with an automatic water supply system. It is convenient to clean and maintain, ensuring the continuous and efficient operation of the wet curtain, while reducing the tediousness of manual operation.
[0042] In another preferred embodiment, the ventilation pipe 113 extends vertically downward to the vicinity of the delivery bed 105, and the opening degree and wind direction are adjustable. The ventilation pipe 113 extends vertically downward to the vicinity of the delivery bed 105, and the adjustable opening degree and wind direction make the ventilation more precise, which can adjust the wind speed and direction according to the specific needs of sows and piglets, and improve the comfort.
[0043] In another preferred embodiment, a temperature sensor is also included for monitoring the temperature in the livestock and poultry house, and the axial flow fan 115 has a frequency conversion function, which can automatically adjust the speed of the axial flow fan 115 according to the temperature change, to realize energy saving and precise control of the ventilation effect. The speed can be automatically adjusted to realize energy saving and precise control of the ventilation effect, and the temperature in the livestock and poultry house is stable.
[0044] In another preferred embodiment, a wet scrubber is installed in the exhaust gas treatment room 114, which includes a filter and an acid solution spraying system. It can effectively remove ammonia and other harmful gases in the exhaust gas, reduce environmental pollution, and improve the air quality around the farm.
[0045] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.
[0046] The utility model does not describe the existing technology or common knowledge in the field.
Claims
1. A precision ventilation system for a large-span livestock and poultry house, comprising a livestock and poultry house (100), the livestock and poultry house (100) comprising a left transverse wall (101), a right transverse wall (102), an upper longitudinal wall (103) and a lower longitudinal wall (104), a plurality of rows of a plurality of farrowing pens (105) are arranged longitudinally in the livestock and poultry house (100), and a plurality of manure trenches (106) separated by manure leakage plates are arranged under the farrowing pens (105) corresponding to each row, characterized in that, The left outer transverse wall (107) and the right outer transverse wall (108) are arranged outside the left transverse wall (101) and the right transverse wall (102) respectively, the inner transverse wall (109) not connected with the roof is arranged in the left transverse wall (101), the livestock and poultry house (100) is arranged with the ceiling (110) connected with the top end of the inner transverse wall (109) and the inner side of the right transverse wall (102), the waste gas treatment room (114) is formed between the right transverse wall (102) and the right outer transverse wall (108); the three-proof net (111) is arranged on the left outer transverse wall (107), the wet curtain (112) is arranged on the left transverse wall (101), the ventilation pipe (113) facing the piglets is arranged on the ceiling (110) corresponding to each farrowing crate (105), the right ends of all the manure ditches (106) are communicated with the waste gas treatment room (114), and the plurality of axial flow air fans (115) are arranged on the right outer transverse wall (108).
2. A precision ventilation system for a large span livestock or poultry house according to claim 1, wherein, A plurality of manually opened air outlets (116) are arranged on the ceiling (110).
3. The precision ventilation system for large span livestock and poultry house according to claim 1, characterized in that, The three-proof net (111) is a stainless steel net with a mesh number of 20-32, which is used to prevent birds, mosquitoes, flies and mice from entering.
4. The precision ventilation system for large span livestock and poultry house according to claim 1, characterized in that, The wet curtain (112) is detachable and is provided with an automatic water supply system.
5. The precision ventilation system for large span livestock and poultry house according to claim 1, characterized in that, The ventilation pipe (113) extends vertically downward to be close to the farrowing crate (105), and the opening degree and the wind direction are adjustable.
6. The precision ventilation system for large span livestock and poultry house according to claim 1, characterized in that, A temperature sensor is further included for monitoring the temperature in the livestock and poultry house, the axial flow air fan (115) has a frequency conversion function, and the rotating speed of the axial flow air fan (115) can be automatically adjusted according to the temperature change, so that the energy saving and the precise control of the ventilation effect are realized.
7. The precision ventilation system for large span livestock and poultry house according to claim 1, characterized in that, The wet scrubber is installed in the waste gas treatment room (114), and the wet scrubber includes a filter and an acid solution spraying system.