CN114847166B - Ventilation system for livestock centralized cultivation - Google Patents
Ventilation system for livestock centralized cultivation Download PDFInfo
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- CN114847166B CN114847166B CN202210413676.8A CN202210413676A CN114847166B CN 114847166 B CN114847166 B CN 114847166B CN 202210413676 A CN202210413676 A CN 202210413676A CN 114847166 B CN114847166 B CN 114847166B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/70—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a ventilation system for livestock centralized cultivation, which comprises an air pipe, wherein one end of the air pipe is provided with an air inlet, one end, close to the air inlet, of the air pipe is provided with a blade, the blade is connected with the inner wall of the air pipe, the center position of one side, far away from the air inlet, of the blade is connected with a rotating shaft, the rotating shaft is connected with a rotating disc, at least one pull rope is arranged on the rotating disc, the other end of the pull rope is connected with a piezoelectric sheet, the piezoelectric sheet is connected with a fixed block, two sides of the fixed block are symmetrically connected with fixed rods, the fixed block is connected with the inner wall of the air pipe through the fixed rods, the center position of the fixed block is provided with a rectifier, and the piezoelectric sheet is connected with the rectifier through a set wire; the automatic adjusting mechanism is symmetrically provided with two shielding plates, a partition seam is arranged in the air pipe, the two shielding plates are clamped in the partition seam, and the ventilation area of the air pipe can be changed.
Description
Technical Field
The invention belongs to the technical field of cultivation ventilation, and particularly relates to a ventilation system for livestock centralized cultivation.
Background
The livestock farm is a place for concentrated cultivation and tissue livestock production, and is one of the external environment conditions of the traditional Chinese medicine for raising livestock products. The good feeding environment must keep good microclimate conditions in the field, keep the microclimate in the field relatively stable, reduce the invasion of winter, spring, wind and snow, ensure good living environment of livestock, be favorable for the regulation and control of the air environment in the livestock house, and facilitate strict management of various sanitary conditions; the utilization rate and the labor productivity of the equipment are improved.
At present, a natural ventilation mode is generally adopted for ventilation equipment of an animal farm, and ventilation balls are used or simple equipment such as exhaust fans are adopted for air replacement in the animal farm, so that on one hand, the efficiency is low, on the other hand, the temperature of the animal farm is regulated by means of an air conditioner for severe cold in winter and dryness heat in summer, external air is directly introduced into the animal farm, the balance of small environments in the animal farm is easily broken, the temperature is suddenly heated or quenched, and adverse effects are caused to the environments of animals.
Chinese patent application No. 202122206221.2 discloses a targeted ventilation device for animal houses. The livestock shed comprises a livestock shed body, wherein air boxes are arranged on two sides of the top of the livestock shed body, a plurality of nozzles are arranged on the air boxes, and each air box is communicated with an air inlet of the livestock shed; the bottom of the livestock shed body is provided with a trench air duct, two sides of the trench air duct are provided with a plurality of ventilation holes, the trench air duct is communicated with an exhaust outlet of the livestock shed, and the exhaust outlet of the livestock shed and an air inlet of the livestock shed are connected with an energy-saving device to form a circulating channel. Above-mentioned prior art, through the mode of natural draft with external air direct introduction in the animal house, the little ambient temperature balance in the animal house is broken easily, leads to the fact the influence to its ambient temperature.
Chinese patent application number 202121926899.1 discloses a multilayer linkage ventilation window system suitable for livestock-raising ventilation, and it relates to animal husbandry environmental control technical field. The multi-layer ventilating window door plates are installed on the ventilating window frame, the ventilating window door plates are connected into a whole through a linkage device, a tensioning device is installed on the ventilating window frame, a steering pulley block is installed at two corners of the upper portion of the ventilating window frame, one end of an auxiliary traction rope is connected with the tensioning device, the other end of the auxiliary traction rope is fixedly connected with a main traction pull rod through a cast iron clamping head and a steering pulley block, the main traction pull rod is connected with one end of the main traction rope through a cast iron rope clamp, the other end of the main traction rope is connected with a driving motor around an arched pulley, and the ventilating window is integrally installed in a house. Above-mentioned prior art can not carry out the how much of effective control its intake to ventilation environment, leads to getting into a large amount of air conditioning fast winter easily, gets into a large amount of steam in the animal house fast summer, leads to animal house environment unbalance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a ventilation system for livestock centralized cultivation, which indirectly drives piezoelectric plates to generate voltage difference through the wind speed sensed by blades, and acts on a piezoelectric stack, when the wind power is larger, the deformation of the piezoelectric stack is larger, the voltage difference is larger, the deformation of the piezoelectric stack is larger, a shielding plate is driven to partially shield an air pipe, so that the situation that external air rapidly enters a livestock shed in winter is effectively prevented, and the temperature balance of the small environment is broken; meanwhile, the automatic adjusting mechanism drives the movable rod to push the piston plate, water in the compression cavity is sent into the hot and cold cavity to react with hot and cold media, generated hot air or cold air is sent into the air pipe, and the influence of external hot and cold air on the temperature in the livestock house is reduced, so that the production efficiency of livestock and the utilization rate of hot and cold equipment are improved.
The invention provides the following technical scheme:
the utility model provides a ventilation system that livestock was concentrated and breeds, includes the tuber pipe, the one end of tuber pipe is equipped with the air inlet, and the one end that the air inlet was kept away from to the tuber pipe is equipped with the filter screen, the one end that is close to the air inlet inside the tuber pipe is equipped with the blade, the blade is connected with the inner wall of tuber pipe, one side central point that the air inlet was kept away from to the blade puts and is connected with the pivot, the pivot is connected with the rolling disc, be equipped with at least one stay cord on the rolling disc, the other end of stay cord is connected with the piezoelectricity piece, the piezoelectricity piece is connected with the fixed block, the bilateral symmetry of fixed block is connected with the dead lever, the fixed block is connected with the inner wall of tuber pipe through the dead lever, the central point of fixed block is equipped with the rectifier, the piezoelectricity piece is connected with the rectifier through the wire that sets up; the automatic adjusting mechanism is symmetrically provided with two shielding plates, a partition seam is arranged in the air pipe, the two shielding plates are clamped in the partition seam, and the ventilation area of the air pipe can be changed.
Preferably, a first sliding groove is formed in the rotating disc along the circumferential direction, a first sliding block is arranged in the first sliding groove, the first sliding block is in matched sliding connection with the first sliding groove, at least two reset mechanisms are further arranged on the side wall of the rotating disc, the reset mechanisms are communicated with the first sliding groove, and the first sliding block can freely slide in and slide out from the reset mechanisms; the first slider with the stay cord is connected, and the other end of stay cord is connected and is kept away from the one end of fixed block at the piezoelectric plate, and canceling release mechanical system restriction slider slides, drives stay cord pulling piezoelectric plate, and piezoelectric plate deformation both sides produce voltage difference, rectify through the rectifier that the wire is connected, and when the pulling force of stay cord reaches the limit, first slider slippage from canceling release mechanical system, piezoelectric plate continues to produce the vibration, and produces voltage difference.
Preferably, the reset mechanism comprises an outer groove, the width of the outer groove is larger than that of the first chute, an inner groove is arranged in the outer groove, and the width of the inner groove is equal to that of the first chute; the cross section of the outer groove is of a T-shaped structure, two limiting plates are symmetrically arranged on one side, far away from the inner groove, of the outer groove, springs are connected to the positions, close to the center, of the inner sides of the limiting plates, the other ends of the springs are connected with stop blocks, the stop blocks are of arc-shaped structures, and the stop blocks form a stop for a first sliding groove in the inner groove.
Preferably, two ends of the first sliding block are of wedge-shaped structures, and through the arrangement of the wedge-shaped structures, the first sliding block can slide into the inner groove from the first sliding groove through the outer groove, and small friction is generated between the first sliding block and the stop block of the arc-shaped structure; a gap is reserved between the two limiting plates, the pull rope can freely pass through the gap, and the width of the gap is smaller than that of the first sliding block.
Preferably, the automatic regulating mechanism comprises an outer shell, screw rods are arranged at two ends of the outer shell in a penetrating mode, knobs are connected to the outer ends of the screw rods, moving blocks are arranged on the screw rods, internal threads are arranged at the center positions of the moving blocks, the moving blocks are connected with the screw rods in a matching and rotating mode through the internal threads, first sliding blocks are connected at two ends of the moving blocks, second sliding grooves are symmetrically arranged on the inner walls of the outer shell, and the second sliding grooves are connected with the second sliding blocks in a matching and sliding mode.
Preferably, one side of the movable block far away from the knob is symmetrically connected with two connecting rods, the other ends of the two connecting rods are connected with a piezoelectric stack, the piezoelectric stack is connected with a rectifier through a wire, the other end of the piezoelectric stack is connected with a connecting plate, the two ends of the connecting plate are connected with a third sliding block, a third sliding groove is formed in the inner wall of the outer shell, and the third sliding groove is in matched sliding connection with the third sliding block.
Preferably, a shielding plate is connected to one side of the connecting plate, which is far away from the piezoelectric stack, and can extend into the separation gap to form shielding for the air pipe; a movable rod is arranged on one side of the shielding plate and is connected with the connecting plate; the shell corresponding to the movable rod is provided with a through groove, the movable rod is arranged in the through groove, and the movable rod is in clearance sliding connection with the through groove.
Preferably, a temperature adjusting mechanism is arranged on one side of the outer shell, and the temperature adjusting mechanism comprises a box body; the movable rod is of a Z-shaped structure, the other end of the movable rod extends into the box body, a partition plate is arranged in the box body, one side of the partition plate is a compression cavity, and the other side of the partition plate is a hot and cold cavity.
Preferably, the movable rod extends into the compression cavity, the movable rod and the box body form a sealed sliding connection, the movable rod is connected with a piston plate, the piston plate is connected with the compression cavity in a sealed sliding manner, water is filled in the compression cavity, one side, far away from the movable rod, of the compression cavity is connected with a communicating pipe, and the other end of the communicating pipe is communicated with the hot and cold cavity.
Preferably, a heat dissipation hole is formed in one end, close to the air pipe, of the hot and cold cavity, the hot and cold cavity is communicated with the air pipe through the heat dissipation hole, and hot and cold medium is filled in the hot and cold cavity.
Preferably, the hot and cold medium is quicklime and saltpeter.
Preferably, the piezoelectric sheet is composed of a piezoelectric ceramic layer and a metal substrate, the piezoelectric stack is composed of a multilayer piezoelectric ceramic laminate, the piezoelectric stack is capable of generating a deformation extending in the stacking direction when a voltage applied to both ends of the piezoelectric stack increases, and is capable of contracting when the applied voltage decreases.
In addition, when the system is installed, the air inlet faces the outside of the livestock shed, the other end faces the inside of the livestock shed, when the outside wind of the livestock shed is large, the higher wind speed drives the blades to rotate quickly, the rotating shaft rotates, the rotating shaft drives the rotating disc to rotate during rotation, when the rotating disc rotates, the initial position of the sliding block is positioned in the inner groove of the reset mechanism, the first sliding block is positioned in the inner groove at the initial stage of rotation of the rotating disc and is under the resistance action of the spring and the stop dog, the first sliding block drives the pull rope to rotate, the other end of the pull rope pulls the piezoelectric plate to perform bending motion, when the pull rope continuously rotates in a following way, the pull force of the pull rope is greater than the elastic force of the spring, the spring is compressed to the limit, and because of the wedge-shaped mechanism arranged at the two ends of the first sliding block, the first sliding block slides out of the inner groove and slides into the first sliding groove through the outer groove, the first sliding block slides reversely, the pull force on the pull rope is released, and the piezoelectric plate is subjected to the elastic force of the elastic force at the moment, and repeated vibration occurs in the resetting process; when the rotating disc continues to rotate, the first sliding block slides into the inner groove of the reset mechanism again, the movement mode is repeated, the piezoelectric sheet can be driven to perform uninterrupted vibration, when the piezoelectric sheet continuously vibrates, charge movement is formed on two sides of the piezoelectric ceramic layer, a voltage difference is formed, and the piezoelectric ceramic layer is connected with the rectifier through a lead to rectify, so that stable current is formed; the output of rectifier is connected with piezoelectric stack through the wire, and piezoelectric stack can follow the size that both ends applyed voltage and warp, and the voltage is bigger, and the deformation is bigger. Therefore, when the wind speed is big, blade pivoted frequency is fast, drives the rolling disc and rotates the forehead frequency fast, makes the stay cord pulling piezoelectricity piece vibration's frequency fast, and the voltage difference that produces is big, directly transmits for piezoelectricity stack through the rectifier, and piezoelectricity stack takes place to deform, drives the connecting plate and removes to further drive the third slider and rotate in the third spout, the connecting plate drives the shielding plate simultaneously and removes, through the clamping setting in the branch of two shielding plates, two shielding plates take place relatively to move relatively simultaneously, carries out partial shielding to the tuber pipe, reduces the ventilation area of tuber pipe. On the contrary, when external wind becomes small, two shielding plates simultaneously generate relative far away movement, and the ventilation area of the air pipe is increased, so that the ventilation efficiency of the livestock shed wind is improved. Through the mode, can be in cold winter in the sky, when external temperature is too low, through wind speed auto-induction, control shielding plate reduces the ventilation area of tuber pipe, prevents that cold air from getting into in the animal house fast in a large number, reduces the ambient temperature of livestock in the animal house. Simultaneously, in hot summer, the shielding plate is controlled to reduce the ventilation area of the air pipe through wind speed automatic induction, so that hot air is prevented from entering the livestock shed in a large amount, and the temperature balance of the livestock shed is prevented from being influenced. In order to better control the environmental temperature in the livestock shed and reduce the interference of external air to the internal temperature of the livestock shed, the air pipe enters the heat Q in the livestock shed, the temperature before ventilation is T0, the amount of air after ventilation is T1, and the ventilation area S of the air pipe is satisfied, wherein T1-T0=Q/c (Svt 2) ρ; in the above formula, c is the specific heat of air, unit: the cal/gm; v is the flow rate of air through the duct in units of: m3/s; t is the ventilation time, ρ is the air density, S units: m2; q units are joules.
In addition, in order to further reduce the change of the external air temperature to the internal temperature of the livestock house, the temperature adjustment mechanism is arranged to adjust the internal temperature of the livestock house, so that the unbalance of the internal environment temperature of the livestock house caused by the overlarge difference between the external temperature and the internal temperature of the livestock house in winter and summer is prevented. When the connecting plate drives the shielding plate to move, the connecting plate drives the movable rod to move simultaneously, the movable rod moves through the through groove that sets up in the moving process, when the connecting plate drives the movable rod to move to the one end of keeping away from the connecting plate, the movable rod drives the piston plate and extrudes the water in the compression chamber, when the water in the compression chamber is compressed into the hot and cold intracavity, through water and hot and cold medium reaction, absorb or give off heat, directly let in the tuber pipe through communicating pipe in, heat up or cool down the air through in the tuber pipe, be favorable to the ambient temperature balance in the animal house more. When the external temperature is too low in winter, quicklime is filled in the hot and cold cavities, when water in the compression cavity is extruded to the compression cavity, the water reacts with the quicklime, the quicklime emits a large amount of heat, the heat is released into the air pipe through the communicating pipe heat dissipation holes, the temperature of the entering cold air is raised, and the influence of the cold air on the temperature in the livestock shed is reduced. When the external temperature is too high in summer, the water in the compression cavity is extruded to the compression cavity through the filled saltpeter, the water reacts with the saltpeter, the saltpeter absorbs a large amount of heat in air in the air pipe, the entered hot air is cooled, and the influence of the hot air on the temperature in the livestock shed is reduced. And combine the shielding plate, when external wind speed is too big, automatic regulating mechanism reduces the tuber pipe area of ventilating through control, and when external wind is little, automatic regulating mechanism increases the ventilation area of tuber pipe through control, can be better maintain animal house temperature balance. In order to make the temperature in the livestock house less affected, when the heat and cold medium adjusts the temperature in the air duct, the heat release or heat absorption amount of the heat and cold medium is Q2, the heat release amount is positive, the heat absorption amount is negative, Q2 satisfies q2=c1·m·t3, m is the mass of the heat and cold medium, c1 is the specific heat capacity, and T3 is the temperature change of the heat and cold medium. The total heat exchange quantity q3=q2+q into the animal house.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the ventilation system for livestock centralized cultivation, the blades are arranged to sense the wind speed, the piezoelectric sheets are indirectly driven to generate the voltage difference to act on the piezoelectric stacks, when the wind power is larger, the deformation of the piezoelectric stacks is large, the voltage difference is larger, the deformation of the piezoelectric stacks is large, the shielding plates are driven to partially shield the wind pipes, and therefore the situation that external air rapidly enters a livestock house to break the temperature balance of the small environment in winter and summer is effectively prevented.
(2) The invention relates to a ventilation system for livestock centralized cultivation, which drives a movable rod to push a piston plate through an automatic adjusting mechanism, sends water in a compression cavity into a hot-cold cavity to react with hot-cold medium, sends generated hot air or cold air into an air pipe, reduces the influence of external hot air and cold air on the temperature in a livestock house, and improves the production efficiency of livestock and the utilization rate of hot-cold equipment.
(3) The ventilation system for the livestock centralized cultivation can control the shielding plate to reduce the ventilation area of the air pipe through wind speed automatic induction when the external temperature is too low in the cold winter, prevent cold air from rapidly entering a livestock house in a large amount and reduce the environmental temperature of livestock in the livestock house. Simultaneously, in hot summer, the shielding plate is controlled to reduce the ventilation area of the air pipe through wind speed automatic induction, so that hot air is prevented from entering the livestock shed in a large amount, and the temperature balance of the livestock shed is prevented from being influenced.
(4) According to the ventilation system for the livestock centralized cultivation, the relationship between the heat of the air pipe entering the livestock house, the temperature before ventilation, the amount of air after ventilation and the ventilation area of the air pipe is limited, so that the environment temperature in the livestock house can be controlled better, and the interference of external air to the internal temperature of the livestock house is reduced.
(5) According to the ventilation system for livestock centralized cultivation, the temperature adjusting mechanism is combined with the automatic adjusting mechanism, when the external wind speed is too high, the automatic adjusting mechanism reduces the ventilation area of the air pipe through control, and when the external wind is small, the automatic adjusting mechanism increases the ventilation area of the air pipe through control, so that the temperature balance of the livestock shed can be better maintained.
(5) According to the ventilation system for livestock centralized cultivation, the heat release or heat absorption of the hot and cold media, the quality of the hot and cold media and the temperature change of the hot and cold media are limited, so that the temperature in the livestock house is further less affected, and the use stability is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a piezoelectric sheet vibration mechanism of the present invention.
Fig. 3 is a front view of the piezoelectric sheet vibrating mechanism of the invention.
Fig. 4 is an enlarged schematic view of the a structure of the present invention.
Fig. 5 is a schematic view of a first slider structure according to the present invention.
Fig. 6 is a schematic view of the automatic adjustment mechanism of the present invention.
Fig. 7 is a schematic cross-sectional view of the outer housing of the present invention.
Fig. 8 is a schematic view of the structure of the shielding plate of the present invention.
Fig. 9 is a schematic view of a temperature adjustment mechanism of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, of the embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1, the ventilation system for concentrated livestock breeding comprises an air pipe 1, wherein one end of the air pipe 1 is provided with an air inlet 2, one end of the air pipe 1, which is far away from the air inlet 2, is provided with a filter screen 17, one end, which is close to the air inlet 2, inside the air pipe 1 is provided with a blade 3, the blade 3 is connected with the inner wall of the air pipe 1, the center position of one side, which is far away from the air inlet 2, of the blade 3 is connected with a rotating shaft 4, the rotating shaft 4 is connected with a rotating disc 5, at least one pull rope 12 is arranged on the rotating disc 5, the other end of the pull rope 12 is connected with a piezoelectric sheet 10, the piezoelectric sheet 10 is connected with a fixed block 9, two sides of the fixed block 9 are symmetrically connected with fixed rods 8, the fixed block 9 is connected with the inner wall of the air pipe 1 through the fixed rods 8, the center position of the fixed block 9 is provided with a rectifier 11, and the piezoelectric sheet is connected with the rectifier 11 through a set wire; the lateral wall of tuber pipe 1 is equipped with automatic adjustment mechanism 13, automatic adjustment mechanism 13 symmetry is equipped with two shielding plates 1312, be equipped with in tuber pipe 1 and separate seam 14, two shielding plates 1312 divide the centre gripping to establish separate seam 14 in, can change the ventilation area of tuber pipe 1.
The piezoelectric sheet 10 is composed of a piezoelectric ceramic layer and a metal substrate, the piezoelectric stack 138 is composed of a multilayer piezoelectric ceramic laminate, when the voltage applied to both ends of the piezoelectric stack 138 increases, the piezoelectric stack 138 can generate a deformation extending in the stacking direction, and when the applied voltage decreases, the piezoelectric stack can contract.
When the system is installed, the air inlet 2 faces to the outside of the livestock shed, the other end faces to the inside of the livestock shed, when the outside wind of the livestock shed is large, the blade 3 is driven to rotate rapidly by higher wind speed, the rotating shaft 4 rotates, the rotating disc 5 is driven to rotate when the rotating shaft 4 rotates, when the rotating disc 5 rotates, the initial position of the sliding block is positioned in the inner groove 72 of the reset mechanism 7, when the rotating disc 5 rotates in the initial stage, the first sliding block (73) is positioned in the inner groove 72 and is under the resistance action of the spring 75 and the stop block 76, the first sliding block (73) can drive the pull rope 12 to rotate, the other end of the pull rope 12 pulls the piezoelectric plate 10 to perform bending motion, when the pull rope 12 continuously rotates in a following way, the pull force of the pull rope 12 is larger than the elastic action of the spring 75, the spring 75 is compressed to the limit, and the first sliding block (73) slides out of the inner groove 72 and slides into the first sliding groove 6 through the outer groove 71 at the moment, the first sliding block (73) reversely slides, the pull rope 12 is released, and the pull rope 10 is subjected to the action of rebound in the reset process; when the rotating disc 5 continues to rotate, the first sliding block (73) slides into the inner groove 72 of the reset mechanism 7 again, the movement mode is repeated, the piezoelectric sheet 10 can be driven to perform uninterrupted vibration, when the piezoelectric sheet 10 continuously vibrates, charge movement is formed on two sides of the piezoelectric ceramic layer, a voltage difference is formed, and the voltage difference is connected with the rectifier 11 through a lead to rectify, so that stable current is formed; the output end of the rectifier 11 is connected with a piezoelectric stack 138 through a lead, and the piezoelectric stack 138 can deform along with the voltage applied to the two ends, and the larger the voltage is, the larger the deformation is. Therefore, when the wind speed is high, the rotation frequency of the blades 3 is high, the rotation frequency of the rotating disc 5 is driven to rotate, the vibration frequency of the piezoelectric sheet 10 pulled by the pull rope 12 is high, the generated voltage difference is directly transmitted to the piezoelectric stack 138 through the rectifier 11, the piezoelectric stack 138 deforms, the connecting plate 139 is driven to move, the third sliding block 1310 is further driven to rotate in the third sliding groove 1311, meanwhile, the connecting plate 139 drives the shielding plates 1312 to move, the two shielding plates 1312 are clamped in the two shielding plates 1312, the two shielding plates 1312 are simultaneously relatively close to each other to move, the air pipe 1 is partially shielded, and the ventilation area of the air pipe 1 is reduced. On the contrary, when the external wind becomes smaller, the two shielding plates 1312 simultaneously move relatively far away, the ventilation area of the air pipe 1 is increased, and ventilation efficiency of the livestock shed wind is facilitated. Through the above mode, can be in cold winter in the sky, when external temperature is too low, through wind speed auto-induction, control shielding plate 1312 reduces the ventilation area of tuber pipe 1, prevents that cold air from getting into in the animal house fast a large amount of, reduces the ambient temperature of livestock in the animal house. Meanwhile, in hot summer, the shielding plate 1312 is controlled to reduce the ventilation area of the air pipe 1 through wind speed automatic induction, so that hot air is prevented from entering the livestock houses in a large amount, and the temperature balance of the livestock houses is prevented from being influenced. In order to better control the environmental temperature in the livestock shed and reduce the interference of external air to the internal temperature of the livestock shed, the heat Q of the air pipe 1 entering the livestock shed is T0 before ventilation, the amount of air after ventilation is T1, and the ventilation area S of the air pipe 1 is satisfied, wherein T1-T0=Q/c (Svt 2) ·ρ; in the above formula, c is the specific heat of air, unit: the cal/gm; v is the flow rate of air through the duct 1 in units of: m3/s; t is the ventilation time, ρ is the air density, S units: m2; q units are joules.
Embodiment two:
as shown in fig. 2-5, on the basis of the first embodiment, a first chute 6 is formed in the rotating disc along the circumferential direction, a first sliding block (73) is arranged in the first chute 6, the first sliding block (73) is in matched sliding connection with the first chute 6, at least two reset mechanisms 7 are further arranged on the side wall of the rotating disc, the reset mechanisms 7 are communicated with the first chute 6, and the first sliding block (73) can freely slide in and slide out from the reset mechanisms 7; the first sliding block (73) is connected with the pull rope 12, the other end of the pull rope 12 is connected with one end of the piezoelectric sheet 10 far away from the fixed block 9, the reset mechanism 7 limits the sliding of the sliding block, the pull rope 12 is driven to pull the piezoelectric sheet 10, voltage differences are generated on two sides of deformation of the piezoelectric sheet 10, rectification is performed through the rectifier 11 connected with the lead, when the pulling force of the pull rope 12 reaches the limit, the first sliding block (73) slides off the reset mechanism 7, the piezoelectric sheet 10 continues to vibrate, and the voltage differences are generated.
The reset mechanism 7 comprises an outer groove 71, the width of the outer groove 71 is larger than that of the first sliding groove 6, an inner groove 72 is arranged in the outer groove 71, and the width of the inner groove 72 is equal to that of the first sliding groove 6; the cross section of the outer groove 71 is of a T-shaped structure, two limiting plates 74 are symmetrically arranged on one side, far away from the inner groove 72, of the outer groove 71, springs 75 are connected to the positions, close to the center, of the inner sides of the limiting plates 74, the other ends of the springs 75 are connected with stop blocks 76, the stop blocks 76 are of arc-shaped structures, and the stop blocks 76 block the first sliding grooves 6 in the inner groove 72.
The two ends of the first sliding block (73) are of wedge-shaped structures, and the first sliding block (73) can slide into the inner groove 72 from the first sliding groove 6 through the outer groove 71 by virtue of the arrangement of the wedge-shaped structures, and generates smaller friction with the stop block 76 of the arc-shaped structure; a gap is reserved between the two limiting plates 74, the pull rope 12 can freely pass through the gap, and the width of the gap is smaller than that of the first sliding block (73).
Example III
As shown in fig. 6-8, on the basis of the first embodiment, the automatic adjusting mechanism 13 includes an outer housing 131, two ends of the outer housing 131 are all provided with screw rods 132 in a penetrating manner, the outer ends of the screw rods 132 are connected with knobs 134, the screw rods 132 are provided with moving blocks 133, the center positions of the moving blocks 133 are provided with internal threads, the moving blocks 133 are connected with the screw rods 132 in a matching and rotating manner by providing the internal threads, two ends of the moving blocks 133 are connected with second sliding blocks 135, second sliding grooves 136 are symmetrically provided on the inner wall of the outer housing 131, and the second sliding grooves 136 are connected with the second sliding blocks 135 in a matching and sliding manner.
The movable block 133 is symmetrically connected with two connecting rods 137 on one side far away from the knob 134, two other ends of the connecting rods 137 are connected with a piezoelectric stack 138, the piezoelectric stack 138 is connected with the rectifier 11 through a wire, the other end of the piezoelectric stack 138 is connected with a connecting plate 139, two ends of the connecting plate 139 are connected with a third sliding block 1310, a third sliding groove 1311 is formed in the inner wall of the outer shell 131, and the third sliding groove 1311 is in matched sliding connection with the third sliding block 1310.
A shielding plate 1312 is connected to one side of the connecting plate 139 far away from the piezoelectric stack 138, and the shielding plate 1312 can extend into the separation gap 14 to form shielding for the air pipe 1; a moving rod 15 is arranged on one side of the shielding plate 1312, and the moving rod 15 is connected with a connecting plate 139; the outer shell 131 corresponding to the moving rod 15 is provided with a through groove, the moving rod 15 is arranged in the through groove, and the moving rod 15 is in clearance sliding connection with the through groove.
Example IV
As shown in fig. 9, on the basis of the first embodiment, a temperature adjusting mechanism 16 is disposed on one side of the outer case 131, and the temperature adjusting mechanism 16 includes a case 161; the movable rod 15 is in a Z-shaped structure, the other end of the movable rod 15 extends into the box body 161, a partition plate 162 is arranged in the box body 161, one side of the partition plate 162 is a compression cavity 163, and the other side of the partition plate 162 is a hot and cold cavity 164.
The moving rod 15 extends into the compression cavity 163, the moving rod 15 and the box body 161 form a sealed sliding connection, the moving rod 15 is connected with a piston plate 165, the piston plate 165 is connected with the compression cavity 163 in a sealed sliding manner, water is filled in the compression cavity 163, one side of the compression cavity 163 far away from the moving rod 15 is connected with a communicating pipe 166, and the other end of the communicating pipe 166 is communicated with the hot and cold cavity 164.
The end of the hot and cold cavity 164 near the air pipe 1 is provided with a heat dissipation hole 167, the hot and cold cavity 164 is communicated with the air pipe 1 through the heat dissipation hole 167, and a hot and cold medium 168 is filled in the hot and cold cavity 164. The hot and cold medium 168 is lime and niter.
In order to further reduce the change of the external air temperature to the internal temperature of the livestock house, the temperature of the internal part of the livestock house is regulated by the temperature regulating mechanism 16, so that the unbalance of the internal environment temperature of the livestock house caused by the overlarge difference between the external temperature and the internal temperature of the livestock house in winter and summer is prevented. When connecting plate 139 drives shielding plate 1312 and removes, simultaneously connecting plate 139 drives movable rod 15 and removes, movable rod 15 removes through the logical groove that sets up in the removal in-process, when connecting plate 139 drives movable rod 15 to the one end of keeping away from connecting plate 139 and removes, movable rod 15 drives piston plate 165 and extrudes the water in the compression chamber 163, water in the compression chamber 163 is compressed into hot and cold intracavity 164, through water and hot and cold medium 168 reaction, absorb or give off heat, directly let in tuber pipe 1 through communicating pipe 166, heat up or the cooling treatment to the air through in the tuber pipe 1, environmental temperature balance in the livestock house is more favorable to. When the external temperature is too low in winter, the quicklime is filled in the hot and cold cavity 164, when the water in the compression cavity 163 is extruded to the compression cavity 163, the water reacts with the quicklime, the quicklime emits a large amount of heat, the heat is released into the air pipe 1 through the heat dissipation holes 167 of the communicating pipe 166, the temperature of the entering cold air is raised, and the influence of the cold air on the temperature in the livestock houses is reduced. When the external temperature is too high in summer, the nitrate is filled in the hot and cold cavity 164, and when water in the compression cavity 163 is extruded to the compression cavity 163, the water reacts with the nitrate, the nitrate absorbs a large amount of heat in the air of the air pipe 1, the entered hot air is cooled, and the influence of the hot air on the temperature in the livestock shed is reduced. And combine shielding plate 1312, when external wind speed is too big, automatically regulated mechanism 13 reduces tuber pipe 1 ventilation area through the control, and when external wind is little, automatically regulated mechanism 13 through the control increase tuber pipe 1 ventilation area, can be better maintain animal house temperature balance. In order to reduce the influence of the temperature in the animal house, when the heat/cold medium 168 adjusts the temperature in the air duct 1, the heat release amount or the heat absorption amount of the heat/cold medium 168 is Q2, the heat release amount is a positive number, the heat absorption amount is a negative number, Q2 satisfies q2=c1·m· t3, m is the mass of the heat/cold medium 168, c1 is the specific heat capacity, and T3 is the temperature change of the heat/cold medium 168. The total heat exchange quantity q3=q2+q into the animal house.
The device that obtains through above-mentioned technical scheme is a ventilation system that livestock was concentrated and breeds, and the size through the blade perception wind speed that sets up indirectly drives the piezoelectric patch and produces the voltage difference, acts on the piezoelectric stack, and when wind-force is bigger, the deformation of depression piece is big, and the voltage difference grow, and the deformation of piezoelectric stack is big, drives the shielding plate and carries out the part to the tuber pipe and shelter from, effectively prevents winter and summer, and external air gets into the beasts house fast and breaks little environmental temperature balance. The automatic adjusting mechanism drives the movable rod to push the piston plate, water in the compression cavity is sent into the hot and cold cavity to react with hot and cold media, generated hot air or cold air is sent into the air pipe, and the influence of external hot air and cold air on the temperature in the livestock house is reduced, so that the production efficiency of livestock and the utilization rate of hot and cold equipment are improved. Can be in cold winter of sky, when external temperature is too low, through wind speed auto-induction, control shielding plate reduces the ventilation area of tuber pipe, prevent that cold air from getting into in the animal house fast a large amount, reduce the ambient temperature of domestic animal in the animal house. Simultaneously, in hot summer, the shielding plate is controlled to reduce the ventilation area of the air pipe through wind speed automatic induction, so that hot air is prevented from entering the livestock shed in a large amount, and the temperature balance of the livestock shed is prevented from being influenced. Through limiting the heat that the tuber pipe got into in the animal house, the temperature before not ventilating, the limit after ventilating, with the ventilation area of tuber pipe between the ambient temperature in the animal house of being convenient for better control, reduce the interference of external air to the inside temperature of animal house. The temperature regulating mechanism combines with the automatic regulating mechanism, when the external wind speed is overlarge, the automatic regulating mechanism reduces the ventilation area of the air pipe through control, and when the external wind is small, the automatic regulating mechanism increases the ventilation area of the air pipe through control, so that the temperature balance of the livestock shed can be better maintained. The heat release or heat absorption quantity of the hot and cold medium, the quality of the hot and cold medium and the temperature change of the hot and cold medium are limited, so that the temperature in the livestock house is further less affected, and the use stability is improved.
Other technical solutions not described in detail in the present invention are all prior art in the field, and are not described in detail herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art; any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A ventilation system for livestock centralized cultivation, which is characterized in that: the novel air conditioner comprises an air pipe (1), wherein an air inlet (2) is formed in one end of the air pipe (1), a filter screen (17) is arranged at one end, far away from the air inlet (2), of the air pipe (1), a blade (3) is arranged at one end, close to the air inlet (2), of the air pipe (1), the blade (3) is connected with the inner wall of the air pipe (1), a rotating shaft (4) is connected to the central position, far away from the air inlet (2), of the blade (3), the rotating shaft (4) is connected with a rotating disc (5), at least one pull rope (12) is arranged on the rotating disc (5), a piezoelectric sheet (10) is connected to the other end of the pull rope (12), fixing blocks (9) are symmetrically connected to two sides of the piezoelectric sheet (10), the fixing blocks (9) are connected with fixing rods (8) through the fixing rods (8), the central position of the fixing blocks (9) is provided with a rectifier (11) through wires, and the piezoelectric sheet is connected with the rectifier (11) through wires. The outer side wall of the air pipe (1) is provided with an automatic adjusting mechanism (13), the automatic adjusting mechanism (13) is symmetrically provided with two shielding plates (1312), a separation gap (14) is arranged in the air pipe (1), and the two shielding plates (1312) are respectively clamped and arranged in the separation gap (14), so that the ventilation area of the air pipe (1) can be changed;
the rotating disc (5) is provided with a first sliding groove (6) along the circumferential direction, a first sliding block (73) is arranged in the first sliding groove (6), the first sliding block (73) is in matched sliding connection with the first sliding groove (6), the side wall of the rotating disc (5) is also provided with at least two reset mechanisms (7), the reset mechanisms (7) are communicated with the first sliding groove (6), and the first sliding block (73) can freely slide in and slide out from the reset mechanisms (7); the first sliding block (73) is connected with the pull rope (12), the other end of the pull rope (12) is connected with one end of the piezoelectric sheet (10) far away from the fixed block (9), the reset mechanism (7) limits the sliding of the sliding block, the pull rope (12) is driven to pull the piezoelectric sheet (10), voltage differences are generated on two deformed sides of the piezoelectric sheet (10), the rectifier (11) connected through a wire is used for rectifying, when the pulling force of the pull rope (12) reaches the limit, the first sliding block (73) slides off the reset mechanism (7), the piezoelectric sheet (10) continuously generates vibration, and the voltage differences are generated;
the reset mechanism (7) comprises an outer groove (71), the width of the outer groove (71) is larger than that of the first sliding groove (6), an inner groove (72) is arranged in the outer groove (71), and the width of the inner groove (72) is equal to that of the first sliding groove (6); the cross section of the outer groove (71) is of a T-shaped structure, two limiting plates (74) are symmetrically arranged on one side, far away from the inner groove (72), of the outer groove (71), springs (75) are connected to the inner sides of the two limiting plates (74) close to the center, a stop block (76) is connected to the other end of each spring (75), the stop block (76) is of an arc-shaped structure, and the stop block (76) blocks a first sliding groove (6) in the inner groove (72);
the automatic adjusting mechanism (13) comprises an outer shell (131), screw rods (132) are respectively arranged at two ends of the outer shell (131) in a penetrating mode, knobs (134) are connected to the outer ends of the screw rods (132), moving blocks (133) are arranged on the screw rods (132), internal threads are formed in the center positions of the moving blocks (133), the moving blocks (133) are connected with the screw rods (132) in a matching rotation mode through the internal threads, second sliding blocks (135) are respectively connected to two ends of the moving blocks (133), second sliding grooves (136) are symmetrically formed in the inner walls of the outer shell (131), and the second sliding grooves (136) are connected with the second sliding blocks (135) in a matching sliding mode;
one side of the moving block (133), which is far away from the knob (134), is symmetrically connected with two connecting rods (137), the other ends of the two connecting rods (137) are connected with a piezoelectric stack (138), the piezoelectric stack (138) is connected with the rectifier (11) through a wire, the other end of the piezoelectric stack (138) is connected with a connecting plate (139), the two ends of the connecting plate (139) are connected with a third sliding block (1310), the inner wall of the outer shell (131) is provided with a third sliding groove (1311), and the third sliding groove (1311) is in matched sliding connection with the third sliding block (1310);
one side of connecting plate (139) keeping away from piezoelectricity stack (138) is connected with shielding plate (1312), shielding plate (1312) can extend to in separating seam (14), forms the shielding to tuber pipe (1).
2. The ventilation system for concentrated livestock breeding according to claim 1, wherein the two ends of the first sliding block (73) are wedge-shaped structures, and the first sliding block (73) can slide into the inner groove (72) from the first sliding groove (6) through the outer groove (71) through the arrangement of the wedge-shaped structures, and generates less friction with the stop block (76) of the arc-shaped structures; a gap is reserved between the two limiting plates (74), the pull rope (12) can freely pass through the gap, and the width of the gap is smaller than that of the first sliding block (73).
3. A ventilation system for concentrated livestock breeding according to claim 1, wherein a movable rod (15) is arranged on one side of the shielding plate (1312), and the movable rod (15) is connected with a connecting plate (139); a through groove is formed in the outer shell (131) corresponding to the moving rod (15), the moving rod (15) is arranged in the through groove, and the moving rod (15) is in clearance sliding connection with the through groove;
one side of the outer shell (131) is provided with a temperature regulating mechanism (16), and the temperature regulating mechanism (16) comprises a box body (161); the movable rod (15) is of a Z-shaped structure, the other end of the movable rod (15) extends into the box body (161), a partition plate (162) is arranged in the box body (161), one side of the partition plate (162) is a compression cavity (163), and the other side of the partition plate (162) is a hot and cold cavity (164);
the movable rod (15) extends into the compression cavity (163), the movable rod (15) and the box body (161) form sealed sliding connection, the movable rod (15) is connected with the piston plate (165), the piston plate (165) is connected with the compression cavity (163) in a sealed sliding manner, water is filled in the compression cavity (163), one side, far away from the movable rod (15), of the compression cavity (163) is connected with the communicating pipe (166), and the other end of the communicating pipe (166) is communicated with the hot and cold cavity (164);
one end of the hot and cold cavity (164) close to the air pipe (1) is provided with a heat dissipation hole (167), the hot and cold cavity (164) is communicated with the air pipe (1) through the heat dissipation hole (167), and a hot and cold medium (168) is arranged in the hot and cold cavity (164).
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| CN202210413676.8A CN114847166B (en) | 2022-04-20 | 2022-04-20 | Ventilation system for livestock centralized cultivation |
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|---|---|---|---|---|
| US5775988A (en) * | 1995-06-05 | 1998-07-07 | Osborne Industries, Inc. | Method and means for improved sidewall ventilation |
| CN206909379U (en) * | 2017-07-20 | 2018-01-23 | 威海市动物疫病预防控制中心 | A kind of simple compound ventilation air-changing device of poultry house |
| CN110905369A (en) * | 2019-12-20 | 2020-03-24 | 张辉 | Automatic ventilation window for noise prevention of high-rise building |
| CN111699974A (en) * | 2020-06-09 | 2020-09-25 | 湖北省科技信息研究院 | Intelligent livestock and poultry breeding system |
| CN213961219U (en) * | 2020-12-09 | 2021-08-17 | 项黎丽 | Livestock-raising is with diversified poultry house that ventilates |
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2022
- 2022-04-20 CN CN202210413676.8A patent/CN114847166B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5775988A (en) * | 1995-06-05 | 1998-07-07 | Osborne Industries, Inc. | Method and means for improved sidewall ventilation |
| CN206909379U (en) * | 2017-07-20 | 2018-01-23 | 威海市动物疫病预防控制中心 | A kind of simple compound ventilation air-changing device of poultry house |
| CN110905369A (en) * | 2019-12-20 | 2020-03-24 | 张辉 | Automatic ventilation window for noise prevention of high-rise building |
| CN111699974A (en) * | 2020-06-09 | 2020-09-25 | 湖北省科技信息研究院 | Intelligent livestock and poultry breeding system |
| CN213961219U (en) * | 2020-12-09 | 2021-08-17 | 项黎丽 | Livestock-raising is with diversified poultry house that ventilates |
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