CN107143952B - A kind of passive automatic temperature control system - Google Patents

A kind of passive automatic temperature control system Download PDF

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Publication number
CN107143952B
CN107143952B CN201710354618.1A CN201710354618A CN107143952B CN 107143952 B CN107143952 B CN 107143952B CN 201710354618 A CN201710354618 A CN 201710354618A CN 107143952 B CN107143952 B CN 107143952B
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CN
China
Prior art keywords
air
pressure
gear
plate
poultry house
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CN201710354618.1A
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Chinese (zh)
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CN107143952A (en
Inventor
尹艳玲
王艳
张宇
沈维政
张心翮
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东北农业大学
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Priority to CN201710354618.1A priority Critical patent/CN107143952B/en
Publication of CN107143952A publication Critical patent/CN107143952A/en
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Publication of CN107143952B publication Critical patent/CN107143952B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening

Abstract

The present invention devises a kind of passive automatic temperature control system, which is made of passive automatic temperature-control unit, is arranged on poultry house wall in an array manner;Passive automatic temperature-control unit mainly includes the components such as pressure automatic regulating valve, gear, drive rod, adjusting cavity, front and rear panels.The present invention mainly utilizes natural airflow through bring poultry house inner air and outer air pressure difference when air conditioning chamber, by the speedup antihypertensive effect of convergent nozzle, achievees the purpose that cool down automatically, while improving air velocity, reinforces ventilation effect, the effectively save energy.The feature of system maximum is (1) effective use poultry house inner air and outer air pressure difference, reduces the air themperature flowed into poultry house, achievees the effect that cool down automatically;(2) when poultry house external and internal pressure changes, which can automatically adjust the discharge area of air conditioning chamber, so that the most effective pressure energy using air, utilizes the energy of natural wind to greatest extent, achieve the effect that automatic temperature-control.The efficiency of energy utilization of natural wind can be improved in the system.

Description

A kind of passive automatic temperature control system

(1) technical field

The invention belongs to automation fields, and in particular to a kind of passive automatic temperature control system.

(2) background technique

In order to improve the life comfort level of livestock and poultry, promote its healthy growth, during the broiling summer, it usually needs open cooling System excludes heat extra in poultry house.Common cooling method includes equal temperature technique of circulation, mechanical aeration-cooling, office Aeration-cooling, mist cooling of portion's fan for cooling, air-cooler etc..Gravity-flow ventilation mainly passes through poultry house door and window and takes away high temperature by wind Air.Grain cooling machine low-temperature grain-storage technology will be given up outer air and be forcibly fed into poultry house, thus to realize cooling by poultry house internal fan Effect.Cooling individually is blowed to single livestock and poultry by locally installing fan in poultry house in local fan for cooling.Cold wind Then the aeration-cooling main principle using air-conditioning of machine takes away heat extra in house by air-cooler by air cooling with cold wind Amount is to reach cooling purpose.Mist cooling is that water atomization is ejected into poultry house, by heat extra in vaporization absorption animal house come Reach the mode of cooling, this mode cooling effect is obvious, and equipment is simple, and cost is relatively low, but will cause humidity in house and increase.

Either mechanical aeration-cooling, local fan for cooling, air-cooler be aeration-cooling or mist cooling, requires to lead to Crossing the additional energy (being mostly electric energy) of external application can be only achieved desired effect.And gravity-flow ventilation is smaller when poultry house inside and outside differential pressure When, effect of natural ventilation is limited.In order to energy saving, raising natural wind utilization rate, the invention proposes a kind of passive automatic Thermoregulating system.

The present invention installs automatic temperature-control unit in an array manner on poultry house wall, constitutes automatic temperature control system, should Thermostat units are made of pressure automatic regulating valve, gear, drive rod, adjusting cavity, front and rear panels etc..When poultry house inner air and outer air When pressure imbalance, pressure-air can press screw motion, and screw rod band moving gear rotates at this time, and gear drives drive rod movement, Drive rod pushes adjustable plate movement, changes adjusting cavity discharge area, when the sum of spring force and internal air pressure and outside sky When atmospheric pressure is equal, screw rod stop motion, air flows through convergent nozzle, and speed increases, and pressure reduction flows into poultry house Air themperature decline, it is mixed with indoor high temperature air ginseng, to reduce indoor air temperature, play automatic adjustment room temperature Effect.The present invention can automatically adjust environment temperature and ventilation effect in poultry house according to the variation of poultry house external and internal pressure, So that the potential energy of natural wind is reached maximum, while energy saving, the temperature limited condition of force ventilation can be made up.

(3) summary of the invention

It is a primary object of the present invention to propose a kind of passive automatic temperature control system, by the thermoregulating system, make certainly When right wind flows through air conditioning chamber, it can be reached using poultry house inner air and outer air pressure difference by the speedup antihypertensive effect of convergent nozzle To the purpose to cool down automatically, while air velocity is improved, reinforces ventilation effect, the effectively save energy.

Technical problem of the invention adopts the following technical solutions to realize: according to the equation of gas state, when air pressure When power declines, if density is constant, air themperature can decline;In order to make full use of the pressure difference energy of indoor and outdoor air, work as sky When gas flows through the passive automatic temperature-control unit being mounted on poultry house wall, adjusting cavity is a kind of convergent nozzle, the sky of flowing Gas can achieve the effect that speedup depressurizes, and flow velocity when admitting air into interior improves, pressure declines, so that temperature declines, in this way Just it can make the air in poultry house while gravity-flow ventilation, Temperature fall.The present invention passes through pressure automatic regulating valve, tooth Wheel, drive rod, adjusting cavity, front and rear panels form automatic temperature-control unit, can be according to the size of poultry house wall with the shape of array Formula installs multiple automatic temperature-control units, constitutes automatic temperature control system.

The invention adopts the above technical scheme may be implemented two kinds of effects: (1) when air flow through tapering type air conditioning chamber, Speedup decompression, and then air themperature is reduced, reduce temperature in poultry house;It (2), should when poultry house external and internal pressure changes System can automatically adjust the discharge area of air conditioning chamber by pressure-regulating valve, thus the most effective pressure using air Can, the energy of natural wind is utilized to greatest extent.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, It is described in detail below by way of attached drawing of the invention.

A specific embodiment of the invention is shown in detail by following embodiment and its attached drawing.

(4) Detailed description of the invention

Fig. 1 is passive automatic temperature control system schematic diagram.

Fig. 2 is passive automatic temperature-control unit.

Fig. 3 is passive automatic temperature-control unit internal structure chart.

Fig. 4 is passive automatic temperature-control unit cross-sectional view.

Fig. 5 is adjusting cavity structure chart.

Fig. 6 is pressure automatic regulating valve cross-sectional view.

Wherein, 1- automatic air regulatinig valve;2- poultry house wall;3- pressure automatic regulating valve;4- gear;5- drive rod; 6- adjusting cavity;7- limit plate;8- adjustable plate;9- bracket;10- screw;11- left plate;12- right side plate;13- wainscot;Under 14- Plate;15- foreboard;16- back plate;17- cylinder;18- screw rod;19- gasket;20- spring;21- rotary shaft;22- bearing;23- rotation Shaft;The 24- level-one gear teeth;The 25- second level gear teeth;26- slideway.

(5) specific embodiment

In order to further illustrate that the present invention to reach technological means used by predetermined goal of the invention and method, ties below Attached drawing and preferred embodiments are closed, to passive automatic temperature control system specific structure proposed by the present invention and working method, are described in detail It is as follows.

Fig. 3 is the preferred embodiments structural representation of the passive automatic adjustment unit of the passive automatic temperature control system of the present invention Figure.It mainly includes pressure automatic regulating valve (3), gear (4), drive rod (5), adjusting cavity (6), foreboard (15) and back plate (16) Deng.Fig. 6 is the cross-sectional view of pressure automatic regulating valve (3).

Wherein, pressure automatic regulating valve (3) is made of cylinder (17), screw rod (18), gasket (19) and spring (20).Spiral shell Bar (18) left end be with cylinder (17) leakproof fit cylindrical surface, centre is the cylindrical surface that cooperate with spring (20), right end for The worm mechanism of certain length and screw pitch.Gear (4) is total to the two-stage gear teeth containing I, II, and the I grade gear teeth are engaged with screw rod (18), the The II grades of gear teeth are engaged with drive rod (5), according to local environment Design of State gear ratio n.Contain ellipse in drive rod (5) lower end Shape slideway (see the label 26 in Fig. 4).Adjustable plate (8) left end can be fixed on left side plate by bearing (22), make adjustable plate It can be rotated clockwise or counterclockwise around bearing;The oval slideway of adjustable plate right end design rotary shaft, the axis and drive rod cooperates, It can move and be slided with drive rod.Gear is fixed by the bracket on wainscot.Adjustable plate and lower plate and left side plate are common Surround air conditioning chamber.Under normal circumstances, air conditioning chamber discharge area is less than inlet area, forms convergent nozzle effect, So that air flows through speedup decompression, so that air themperature be effectively reduced, while also can be improved into the air velocity in poultry house, Improve the drafting efficiency of natural wind.

When defining original state, poultry house external air pressure is P1, air conditioning chamber inlet area is A0, discharge area For A1.When poultry house external air pressure becomes P2When (it is assumed that P2>P1), air conditioning chamber discharge area is made in pressure-regulating valve Become A under2, then A2<A1;When poultry house external air pressure is P2<P1When, air conditioning chamber discharge area is in pressure-regulating valve Become A under effect2, then A2>A1

When external air pressure be higher than spring (20) elastic force and room air pressure and when, pressure-air can press screw rod (18) it moves right, screw rod (18) will drive gear (4) and rotate clockwise at this time, and gear (4) drives drive rod (5) to transport downwards Dynamic, drive rod (5) pushes adjustable plate (8) to rotate clockwise, and reduces adjusting cavity (6) discharge area, forms decrement jet pipe;Work as bullet When spring (20) elastic force and the sum of internal air pressure equal with external air pressure, screw rod (18) stop motion;Air flows through gradually Contracting jet pipe, speed increase, pressure reduction, flow into the air themperature decline in poultry house, mixed with indoor high temperature air ginseng, from And indoor air temperature is reduced, play the role of reducing room temperature automatically.

When external air pressure be less than spring (20) elastic force and room air pressure and when, spring (20) presses screw rod (18) it moves downward, screw rod band moving gear (4) rotates counterclockwise, and gear (4) drives drive rod (5) to move upwards, drive rod (5) Adjustable plate (8) are driven to rotate counterclockwise, so that adjusting cavity (6) discharge area increases, stopping is acted when pressure balance, is passed through The variation of air conditioning chamber (6) discharge area automatically adjusts the air themperature in poultry house.

The above is only preferred embodiments of the invention, is not intended to limit the present invention in any form, although The present invention is disclosed above with preferred embodiments, and however, it is not intended to limit the invention, any person skilled in the art, In the range of not departing from technical solution of the present invention, all it is modified or is modified to using the technology contents of the disclosure above With the equivalent example of variation, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to above Any simple modification, equivalent change and modification made by example, all of which are still within the scope of the technical scheme of the invention.

Claims (2)

1. passive automatic temperature control system is mainly made of passive automatic temperature-control unit (1), which need to be mounted on poultry house On wall (2), array arrangement is carried out with any amount according to the size of wall, it is characterised in that: passive automatic adjustment unit It (1) mainly include pressure automatic regulating valve (3), gear (4), drive rod (5), adjusting cavity (6), foreboard (15) and back plate (16); Pressure automatic regulating valve (3) is made of cylinder (17), screw rod (18), gasket (19) and spring (20);Adjusting cavity (6) is by adjusting Plate (8), lower plate (14), left plate (11) and right side plate (12) composition, are rectangle, adjustable plate (8) can by bearing (22) into Row rotation;Drive rod (5) lower end is oval slideway (26), to guarantee that the rotary shaft (23) of adjustable plate (8) can be in slideway (26) interior free movement;Pressure automatic regulating valve (3) is engaged with gear (4) by the I grade gear teeth (24), gear (4) and transmission Bar (5) is engaged by the Section II grade gear teeth (25), and drive rod (5) is limited by limit plate (7), and drive rod (5) lower end is ellipse Round slide (26), oval slideway (26) are linked with adjustable plate (8) by rotary shaft (23), and adjustable plate (8) passes through bearing (22) it is mounted on left plate (11) and right side plate (12), gear (4) is linked with bracket (9) by rotary shaft (21), bracket (9) It is fixed on wainscot (13), limit plate (7) is fixed on left plate (11) and right side plate (12) by screw (10).
2. passive automatic temperature control system according to claim 1, it is characterised in that: adjusting cavity (6) inlet -duct area is always Greater than discharge area, convergent nozzle is formed;When external air pressure lower than spring (20) elastic force and room air pressure and when, Spring (20) presses screw rod (18) and moves downward, and screw rod (18) band moving gear (4) rotates counterclockwise, and gear (4) drives drive rod (5) it moves upwards, drive rod (5) drives adjustable plate (8) to rotate counterclockwise, so that adjusting cavity (6) discharge area increases, until pressure Stopping acts when dynamic balance;When external air pressure be higher than spring (20) elastic force and room air pressure and when, pressure-air Screw rod (18) can be pressed to move right, screw rod (18) will drive gear (4) and rotate clockwise at this time, and gear (4) drives drive rod (5) it moves downward, drive rod (5) pushes adjustable plate (8) to rotate clockwise, and reduces adjusting cavity (6) discharge area;Work as spring (20) elastic force and when the sum of internal air pressure equal with external air pressure, screw rod (18) stop motion;Due to convergent nozzle With speedup antihypertensive effect, when so that air flowing through adjusting cavity (6), speed increases, and pressure reduction flows into poultry house Air themperature decline, it is mixed with indoor high temperature air ginseng, to reduce indoor air temperature, play the automatic work for reducing room temperature With.
CN201710354618.1A 2017-05-19 2017-05-19 A kind of passive automatic temperature control system CN107143952B (en)

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CN107143952B true CN107143952B (en) 2019-05-21

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2518015Y (en) * 2002-01-04 2002-10-23 王鹏 Jet conduction ventilator
CN1648533A (en) * 2004-01-30 2005-08-03 刘希芳 Energy saving induced-air temperature lowering machine
CN2718439Y (en) * 2002-03-28 2005-08-17 妥思空调设备(苏州)有限公司 Tube type air port
CN101303157A (en) * 2007-03-23 2008-11-12 大荷兰人国际有限公司 Ventilation valve for barns
CN204540334U (en) * 2015-03-26 2015-08-12 中国农业大学 The closed poultry house ventilating system of anti-cross infection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9043989B2 (en) * 2008-06-04 2015-06-02 Camfil Usa, Inc. Method and apparatus for providing clean air to animal enclosures
US20110214615A1 (en) * 2010-03-05 2011-09-08 Martin Shan Animal confinement housing configured for improved forced air ventilation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2518015Y (en) * 2002-01-04 2002-10-23 王鹏 Jet conduction ventilator
CN2718439Y (en) * 2002-03-28 2005-08-17 妥思空调设备(苏州)有限公司 Tube type air port
CN1648533A (en) * 2004-01-30 2005-08-03 刘希芳 Energy saving induced-air temperature lowering machine
CN101303157A (en) * 2007-03-23 2008-11-12 大荷兰人国际有限公司 Ventilation valve for barns
CN204540334U (en) * 2015-03-26 2015-08-12 中国农业大学 The closed poultry house ventilating system of anti-cross infection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
这款空调不用电,却拯救了成千上万的人;xueguoqin12345;《www.360doc.cn/article/2016071228711976_575080288.html》;20160712;全文

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