CN115868417B - Centralized ventilation device for building cultivation - Google Patents

Centralized ventilation device for building cultivation Download PDF

Info

Publication number
CN115868417B
CN115868417B CN202211526882.6A CN202211526882A CN115868417B CN 115868417 B CN115868417 B CN 115868417B CN 202211526882 A CN202211526882 A CN 202211526882A CN 115868417 B CN115868417 B CN 115868417B
Authority
CN
China
Prior art keywords
building
air
cultivation
air shaft
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202211526882.6A
Other languages
Chinese (zh)
Other versions
CN115868417A (en
Inventor
刘波
韩宇捷
杨攀
黄诗瑜
吴郭仪
龚梓樾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong University
Original Assignee
Nantong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong University filed Critical Nantong University
Priority to CN202211526882.6A priority Critical patent/CN115868417B/en
Publication of CN115868417A publication Critical patent/CN115868417A/en
Application granted granted Critical
Publication of CN115868417B publication Critical patent/CN115868417B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Treating Waste Gases (AREA)

Abstract

The invention discloses a concentrated ventilation device for building cultivation, which comprises a cultivation building, wherein the cultivation building comprises a plurality of layers of cultivation single rooms which are arranged up and down, an exhaust mechanism is arranged on the same side of the cultivation building in each layer of cultivation single room, a wind well with an opening at the top is formed in a space between the cultivation building and a wind well wall, the opening at the top of the wind well is used for being externally connected with a gas dust removal and deodorization device, a total fan is arranged at the top of the wind well and is used for exhausting air in the wind well, a blocking device is arranged at the position, opposite to the exhaust mechanism, of the wind well wall, the blocking device comprises a wall frame and a plurality of shutter plates, the wall frame is fixed on the wind well wall, the shutter plates are fixedly arranged on the wall frame in parallel, each shutter plate is obliquely arranged, a gap for air flow passing is formed between the shutter plates and the wall frame, and porous material clusters are filled between the shutter plates. The pretreatment method can pretreat the odor before the centralized treatment, relieve the burden of the centralized treatment to a certain extent and increase the treatment efficiency.

Description

Centralized ventilation device for building cultivation
Technical Field
The invention relates to the technical field of livestock breeding, in particular to a building breeding centralized ventilation device.
Background
With the expansion of the cultivation scale in China, more and more groups begin to adopt the building livestock cultivation design, and the building livestock cultivation has the following advantages: taking the pig raising as an example, the pig raising method,
1) Saving land resources
In the past, the original purpose of pig raising in the building is to develop the pig house to space, so that a large amount of land resources are saved. If the construction area of the pigsty of the ten thousands pigsty is 6000m < 2 >, if four stories are adopted, each story is 1500m 2, the construction space occupied by 4500m 2 can be saved, and the space occupied by the construction of 10000m 2 is at least saved by adding the pig-house isolation belt. In the past, a ten thousand pig farms need to occupy 50-60 mu of land. The pig raising in the storied building needs 15 mu of land.
2) Is beneficial to environmental protection
The pig raising method has the advantages that the environment is destroyed, pollution is caused, a plurality of large pig farms which are formed into slices are extremely outstanding in environmental protection pressure, the existing manure disposal one-time investment is large, the operation cost is high, and both government and enterprises in conditional areas are invested, so that part of problems are solved, part of problems are solved in small pig raising groups in rural areas and small commodity pig farms in the fermentation bed, but the large pig farms have certain difficulty, and therefore, the pig raising environmental protection problem becomes a bottleneck for restricting the development of pig raising. The pig raising in the building can reduce the area of environmental pollution, can intensively treat the excrement, is also an advantage of pig raising development, and is very important at the present stage.
3) High-rise building has good ventilation and lighting, and can effectively prevent germ transmission
In summer, the door and window is fully opened, the high-rise is ventilated and transparent, and the air is fresh and cool. In the north, the doors and windows are closed in winter, the films are tightly buckled, the manure is timely cleared, the flushing is controlled, the ceiling is cold-proof, the warmth retention is enhanced, and the greenhouse is better than a non-heating flat house.
The building livestock house generally needs to adopt a centralized ventilation system, and the ventilation system discharges the livestock house waste gas of each floor to the roof through a wind well, and the waste gas is discharged after being filtered by a deodorizing curtain deodorizing and dust filtering tank. However, since the air quantity concentrated on the roof is huge, the area of the deodorizing curtain and the dust filtering tank on the roof is limited, the gas residence time is short, and the deodorizing and dust removing efficiency is reduced, so that the problem of deodorizing and dust removing in the poultry and livestock houses of the building is very urgent.
Disclosure of Invention
The invention provides a building cultivation centralized ventilation device for solving the two technical problems of uneven substrate deposition in the background art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
The utility model provides a building breeds and concentrates ventilation unit, including breeds the building, breeds the building and includes the single room of breeding that sets up from top to bottom, the single room of breeding sets up exhaust mechanism in the same side of breeding the building in every layer, it is provided with the wind well wall to breed the building outside, wind well wall vertical arrangement, and with breeds the side clearance fit of building setting exhaust mechanism, wind well wall left and right sides is through the connection wall and breeds the building butt joint, make breeds the space between building and the wind well wall form a top open-ended wind well, wind well top opening is used for external gas dust removal deodorizing device, wind well top is established total fan, total fan is used for discharging the air in the wind well, wind well wall installs the blocking device in the position department of exhaust mechanism that is faced, blocking device includes wall frame and tripe, the wall frame is fixed on wind well wall, the tripe quantity is a plurality of, fixed mounting in parallel on wall frame, every tripe board slope sets up, have the clearance that supplies the air current to pass through between the tripe board, it is filled with porous material ball to be used for blocking the part of exhaust dust in the mechanism gas between the tripe.
In some of these embodiments, the porous material clusters are not filled between the louvers, instead the louvers themselves are made of porous material, and the louvers serve to block some of the dust in the air blown by the air exhaust mechanism.
In some of these embodiments, the air shaft wall is provided with a spray device, the spray device comprises a water tank, a connecting water pipe and a spray header, the water tank is connected with the spray header through the connecting water pipe, the spray header is provided with a plurality of spray headers, the spray header is positioned above the air shaft, the spray header can spray liquid in the water tank downwards, and the space in the air shaft, the shutter plates and the porous material clusters are sprayed.
In some embodiments, a plurality of hanging points are arranged at the position of the air shaft wall, which is opposite to the air exhaust mechanism, each hanging point can be hung with a blocking device, and the blocking devices form a blocking device group to jointly block part of dust in the air blown by the same air exhaust mechanism.
In some embodiments, the liquid in the water tank is sodium hypochlorite solution with the effective concentration of chlorine of 1% -10%, the porous material is biochemical cotton, the biochemical cotton can absorb ammonia gas and hydrogen sulfide gas in the blown gas besides shielding part of dust in the blown gas of the exhaust mechanism, and when the sodium hypochlorite solution is sprayed on the biochemical cotton, the sodium hypochlorite solution can react with part of ammonia gas and hydrogen sulfide gas on the biochemical cotton to enable the ammonia gas and hydrogen sulfide gas to be dissolved in the sodium hypochlorite solution and drop to the bottom of an air shaft, so that the biochemical cotton can continuously absorb the ammonia gas and the hydrogen sulfide gas.
In some of these embodiments, the bottom of the air shaft is an inclined surface, and a water outlet valve is disposed at the lowest point of the bottom of the air shaft.
In some of these embodiments, alumina particles are immobilized in a mass of porous material.
In some embodiments, a water pump is mounted on the connecting water pipe and is used for pumping sodium hypochlorite solution in the water tank to the spray header so that the sodium hypochlorite solution is sprayed out of the spray header.
In some of these embodiments, the air evacuation mechanism is a blower.
In some of these embodiments, a plurality of U-shaped clips are provided on the wall frame, and protruding rods are provided at both ends of the shutter plate, and the protruding rods can be inserted into the U-shaped clips, so that the shutter plate is fixed on the wall frame.
The invention has the following advantages:
1. The invention is through installing the blocking device in the position that the air shaft wall faces the air exhaust mechanism in the most concentrated position of exhaust gas of the cultivation mono, utilize porous material ball that fills between the tripe board to block some dust in the air exhaust mechanism blowout gas, can shelter from some dust before the dust reaches the total fan in air shaft top, make the speed of dust that is not blocked greatly reduce at the same time, and then make the time that the dust remains in the air shaft increase, cooperate with spray set to blowout liquid to the air shaft, the dust can mix in the water droplet, fall to the air shaft bottom, realize the removal of dust, the invention is through installing the tripe structure in the air shaft before concentrating the ventilation treatment device and cooperating with the spray of the sodium hypochlorite diluent again, carry on the preliminary treatment to the stink before concentrating treatment, the burden of concentrating treatment is relieved to a certain extent, the treatment efficiency has been increased.
2. The spraying device sprays sodium hypochlorite solution, the porous material is biochemical cotton, the biochemical cotton can absorb ammonia gas and hydrogen sulfide gas in the blown gas except part of dust in the blown gas of the exhaust mechanism, so that odor is removed, when the sodium hypochlorite solution is sprayed on the biochemical cotton to react with the biochemical gas, part of the ammonia gas and the hydrogen sulfide gas on the cotton can be dissolved in the sodium hypochlorite solution and drop to the bottom of an air shaft, so that the biochemical cotton can continuously absorb the ammonia gas and the hydrogen sulfide gas, the sodium hypochlorite solution can also react with the ammonia gas and the hydrogen sulfide gas in the air shaft, the odor is effectively removed, and aluminum oxide is added in a louver gap, so that the odor treatment efficiency is improved.
3. The position of the air shaft wall, which is opposite to the exhaust mechanism, is provided with a plurality of hanging points, each hanging point can be hung with one blocking device, and the blocking devices form a blocking device group, so that the blocking device group is formed by a plurality of detachable modules, and the fixed-point replacement of the blocking devices and the density control and installation cost adjustment of the blocking devices can be realized.
Drawings
FIG. 1 is a schematic structural view of a centralized ventilation device for building cultivation of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is a schematic view of a blind mounted to a wall mount;
FIG. 4 is a comparative graph of ammonia removal in a wind well using sodium hypochlorite solution as a spray liquid and water as a spray liquid;
Fig. 5 is a graph comparing the removal of hydrogen sulfide gas in a wind well using sodium hypochlorite solution as a spray liquid and water as a spray liquid.
Name of the label in the figure: the system comprises a cultivation building 1, a cultivation single room 11, an exhaust mechanism 12, a wind shaft wall 2, a main fan 21, a water outlet valve 22, a blocking device 3, a wall frame 31, a shutter plate 32, a porous material block 33, a spraying device 4, a water tank 41, a connecting water pipe 42 and a spraying head 43.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
It should be noted that the terms like "upper", "lower", "left", "right", "front", "rear", and the like are also used for descriptive purposes only and are not intended to limit the scope of the invention in which the invention may be practiced, but rather the relative relationship of the terms may be altered or modified without materially altering the teachings of the invention.
As shown in fig. 1-3, the building cultivation centralized ventilation device comprises a wind well wall 2, a blocking device 3, a spraying device 4 and other main structures, wherein the wind well wall 2 is a wall body of an air exhaust mechanism 12 which is arranged on the front surface of a cultivation building 1, the two sides of the wall body are made of concrete walls or brick walls or other materials with good sealing property to form a wind well between the wind well wall 2 and the cultivation building 1, the top of the wind well wall 2 is provided with a total fan 21, the bottom of the wind well wall is provided with a slope, and the bottom of the slope is provided with a water outlet valve 22.
The shielding device 3 comprises a wall frame 31 and shutter plates 32, wherein the shielding device 3 is one of key structures of the invention, the wall frame 31 is fixed on the wind shaft wall 2, the shutter plates 32 are arranged according to specific conditions, porous material clusters 33 are filled between the shutter plates 32, or the shutter plates 32 are made of porous materials. The blocking device 3 is used as a module for forming a blocking device group, so that the fixed-point replacement of the device and the density control and installation cost of the adjusting device can be realized.
The porous material biochemical cotton is arranged on the inner wall of the air shaft, so that when the sodium hypochlorite sprays the shutter plate 32, a part of gas (ammonia gas and hydrogen sulfide) adsorbed on the biochemical cotton is reacted, a part of space is reserved for continuously adsorbing the gas, and the adsorption effect of the biochemical cotton is improved.
Since the odor released by the livestock is different for different seasons, the blocking device 3 can cope with the odor with different concentrations according to the different installation quantity, such as: the concentration of ammonia gas (2.2 ppm, 4.8 ppm, 9.3 ppm) and the concentration of hydrogen sulfide (0.95 ppm, 1.87 ppm, 2.53 ppm) can be used to effectively treat high concentration gas by increasing the number of louvers 32 on the wall to realize the diversification of deodorizing combinations and the like.
According to the invention, alumina particles are fixed in the porous material block 33, so that the adsorption effect on odor is improved, and the deodorizing effect is improved after the porous material block is treated by the sodium hypochlorite solution serving as a deodorizing agent. In the experiment, 6 designed biochemical cotton shutter plates are arranged on the inner wall of the air shaft opposite to the air exhaust mechanism 12, and 6.26g of alumina is added into each porous material block 33, wherein the inlet air speed of the air shaft is designed to be 0.71 m/s. Setting initial concentration of ammonia gas and hydrogen sulfide as low, medium and high concentration gradients: 2.2ppm, 4.8ppm, 9.3ppm, 0.95ppm, 1.87ppm, 2.53ppm. Spraying sodium hypochlorite solution, and measuring the ammonia concentration to be reduced to 0.38ppm, 0.52ppm and 0.97ppm after passing through a water curtain at the outlet of the air shaft, wherein the ammonia concentration is respectively reduced to 82.73%, 89.17% and 89.57%; the hydrogen sulfide concentration was reduced to 0.38ppm, 0.86ppm, 1.10ppm, and the hydrogen sulfide concentration was reduced by 60.00%, 54.01%, 56.52%, respectively.
The spraying period formulated by the present invention is based on a sodium hypochlorite dilution with an effective concentration of chlorine of 1.7% which is theoretically effective for treating 26.7mg of hydrogen sulfide gas per 100 ml. The ammonia in the waste gas is mainly removed through hydrolysis, oxidation and other reactions, and the hydrogen sulfide is removed through oxidation reaction with sodium hypochlorite. The dissolution and reaction of ammonia gas can occur while the sodium hypochlorite diluent is used for treating the hydrogen sulfide, and the results before and after the diluent is sprayed are compared to obtain the treatment result of the ammonia gas, so that the treatment result of the hydrogen sulfide is greatly improved. The pairs of ammonia gas and hydrogen sulfide gas in the wind shaft are removed by using sodium hypochlorite solution as the spray liquid and water as the spray liquid, such as shown in fig. 4 and 5.
According to the invention, the result is verified through a model, the total amount of the single sodium hypochlorite diluent is set to be 32.4ml, the spraying rate is set to be 32.4ml per minute, when mixed gas with the concentration of hydrogen sulfide of 3.5mg/m and the concentration of ammonia of 9.3 mg/m is introduced, the theoretical treatment time can reach 13 minutes, after the continuous treatment for 7 minutes, the effective concentration of the sodium hypochlorite diluent is reduced to 0.4%, and the sodium hypochlorite diluent in the batch is declared to be abandoned.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.

Claims (6)

1. The utility model provides a building is bred and is concentrated ventilation unit, includes breeds building (1), breeds building (1) including a plurality of layers set up from top to bottom breeds single room (11), every layer breed single room (11) and set up exhaust mechanism (12), characterized by in the same side of breeds building (1): the air shaft wall (2) is arranged outside the cultivation building (1), the air shaft wall (2) is vertically arranged and is in clearance fit with one side surface of the cultivation building (1) provided with the air exhaust mechanism (12), the left end and the right end of the air shaft wall (2) are in butt joint with the cultivation building (1) through connecting walls, a top opening air shaft is formed in a space between the cultivation building (1) and the air shaft wall (2), the top opening of the air shaft is used for being externally connected with a gas dedusting and deodorizing device, the top of the air shaft is provided with the total fan (21), the total fan (21) is used for exhausting air in the air shaft, the air shaft wall (2) is provided with a blocking device (3) at the position opposite to the air exhaust mechanism (12), the blocking device (3) comprises a wall frame (31) and a plurality of shutter plates (32), the wall frame (31) is fixed on the air shaft wall (2), the shutter plates (32) are fixedly arranged on the wall frame (31) in parallel, each shutter plate (32) is obliquely arranged, a gap for air flow to pass through is reserved between each shutter plate (32) and the wall frame (31), porous material balls (33) are filled between the shutter plates (32), and the porous material balls (33) are used for blocking part of dust in the air blown by the air exhaust mechanism (12); the air shaft wall (2) is provided with a spraying device (4), the spraying device (4) comprises a water tank (41), a connecting water pipe (42) and a spraying head (43), the water tank (41) is connected with the spraying head (43) through the connecting water pipe (42), the spraying heads (43) are arranged above the air shaft, the spraying head (43) can spray liquid in the water tank (41) downwards, and spray the space in the air shaft, the louver plates (32) and the porous material groups (33); the position of the air shaft wall (2) facing the air exhaust mechanism (12) is provided with a plurality of hanging points, each hanging point can be hung with a blocking device (3), the blocking devices (3) form a blocking device group, and part of dust in the air blown by the same air exhaust mechanism (12) is jointly blocked; the liquid in the water tank (41) is sodium hypochlorite solution with the effective concentration of chlorine of 1% -10%, the porous material (33) is biochemical cotton, the biochemical cotton can absorb ammonia and hydrogen sulfide in the blown gas besides shielding part of dust in the blown gas of the exhaust mechanism (12), and when the sodium hypochlorite solution is sprayed on the biochemical cotton, the sodium hypochlorite solution can react with part of ammonia and hydrogen sulfide on the biochemical cotton to enable the ammonia and hydrogen sulfide to be dissolved in the sodium hypochlorite solution and drop to the bottom of an air shaft, so that the biochemical cotton can continuously absorb the ammonia and the hydrogen sulfide.
2. The building cultivation centralized ventilation device according to claim 1, wherein: the bottom of the air shaft is an inclined plane, and a water outlet valve (22) is arranged at the lowest point of the bottom of the air shaft.
3. The building cultivation centralized ventilation device according to claim 2, wherein: alumina particles are fixed in the porous material block (33).
4. A building culture centralized ventilation device according to claim 3, characterized in that: the water pump is arranged on the connecting water pipe (42) and is used for pumping sodium hypochlorite solution in the water tank (41) to the spray header (43) so that the sodium hypochlorite solution is sprayed out of the spray header (43).
5. The building cultivation centralized ventilation device according to claim 4, wherein: the exhaust mechanism (12) is a blower.
6. The building cultivation centralized ventilation device according to claim 5, wherein: the wall frame (31) is provided with a plurality of U-shaped cards, two ends of the shutter plate (32) are provided with protruding rods, and the protruding rods can be inserted into the U-shaped cards, so that the shutter plate (32) is fixed on the wall frame (31).
CN202211526882.6A 2022-12-01 2022-12-01 Centralized ventilation device for building cultivation Active CN115868417B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211526882.6A CN115868417B (en) 2022-12-01 2022-12-01 Centralized ventilation device for building cultivation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211526882.6A CN115868417B (en) 2022-12-01 2022-12-01 Centralized ventilation device for building cultivation

Publications (2)

Publication Number Publication Date
CN115868417A CN115868417A (en) 2023-03-31
CN115868417B true CN115868417B (en) 2024-05-24

Family

ID=85765169

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211526882.6A Active CN115868417B (en) 2022-12-01 2022-12-01 Centralized ventilation device for building cultivation

Country Status (1)

Country Link
CN (1) CN115868417B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101019088B1 (en) * 2010-08-26 2011-03-07 양용만 Environment-friendly pigpen using deodorization system and complex
KR20180047979A (en) * 2016-11-02 2018-05-10 주식회사 유로하우징 A ventilative device of a pig farm
CN214758467U (en) * 2021-03-31 2021-11-19 青岛大牧人机械股份有限公司 Novel ventilation system for livestock and poultry multi-storey building
CN217887420U (en) * 2022-05-13 2022-11-25 常州本合智能科技有限公司 Be used for floor type to breed house ventilation deodorizing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101019088B1 (en) * 2010-08-26 2011-03-07 양용만 Environment-friendly pigpen using deodorization system and complex
KR20180047979A (en) * 2016-11-02 2018-05-10 주식회사 유로하우징 A ventilative device of a pig farm
CN214758467U (en) * 2021-03-31 2021-11-19 青岛大牧人机械股份有限公司 Novel ventilation system for livestock and poultry multi-storey building
CN217887420U (en) * 2022-05-13 2022-11-25 常州本合智能科技有限公司 Be used for floor type to breed house ventilation deodorizing device

Also Published As

Publication number Publication date
CN115868417A (en) 2023-03-31

Similar Documents

Publication Publication Date Title
CN110038397B (en) Ammonia emission reduction device for livestock and poultry raising house
CN104823862A (en) Air purifying system for breeding house
KR20230000535A (en) System for reducing offensive odor of livestock farm
CN105013274A (en) Haze-resisting oxygenation filtering window
KR101978427B1 (en) Control facilities of odor and particulate matter emissions from livestock facilities
CN115868417B (en) Centralized ventilation device for building cultivation
CN213187577U (en) Building pig raising pigsty with roof for deodorization
CN111837966B (en) Ventilation system for livestock and poultry breeding
CN116379539B (en) Soft ventilation fresh air system for intelligent building
KR100349461B1 (en) Container incubator for domestic animal
CN214902908U (en) Multilayer building room formula pig house odor purification system
CN216062610U (en) Pig house air filtration system
CN114031174B (en) Solar energy circulation aeration suspension type biological filter
KR102526882B1 (en) Odor removal adsorption tower collection box
CN211129311U (en) Pig raising house
JP3706544B2 (en) Box-frame unit assembly type biological deodorization device
CN210114960U (en) Device for absorbing ammonia gas in livestock and poultry breeding house
CN113100077A (en) Pigsty ventilation system with exhaust treatment function and ventilation method
CN109792957B (en) Breeding system
CN208724621U (en) One breeding house exhaust structure
CN112675651A (en) Farm ventilation method and polluted gas purification device
CN214120272U (en) Air purification deodorization ventilation blower for livestock and poultry house
CN205196586U (en) Air auto purification cowshed
JP2001008567A (en) Raising arrangement
CN217844807U (en) Anti-blocking air treatment absorption device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant