CN102812886A - Motive-power-free automatic irrigation system - Google Patents
Motive-power-free automatic irrigation system Download PDFInfo
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- CN102812886A CN102812886A CN2012101864172A CN201210186417A CN102812886A CN 102812886 A CN102812886 A CN 102812886A CN 2012101864172 A CN2012101864172 A CN 2012101864172A CN 201210186417 A CN201210186417 A CN 201210186417A CN 102812886 A CN102812886 A CN 102812886A
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Abstract
The invention relates to a motive-power-free automatic irrigation system, which comprises a water source, a water inlet pipe, an irrigation head and a water conveying pipe. The motive-power-free automatic irrigation system is characterized in that the motive-power-free automatic irrigation system is provided with a sealing box utilizing gas thermal motive power for realizing water absorption and water conveying functions, an internal space of the sealing box is divided into a water storage part and an air chamber, a water inlet arranged at the bottom of the sealing box is connected to the water inlet pipe through a one-way valve, and a water outlet is connected to the water conveying pipe through the other one-way valve. The irrigation system provided by the invention uses the gas thermal motive power generated through air temperature change for realizing the water suction and irrigation, the external motive power input is not needed, the energy-saving and environment-protection significance is realized, in addition, the irrigation state can be automatically regulated according to the sunlight and air temperature change in daytime and at night, and the plant growth requirements can be more preferably met.
Description
Technical field the present invention relates to the irrigation system that usefulness is irrigated in a kind of plant husbandry.
It is the groundwork of plant husbandry that background technology is irrigated, and traditional surface water open channel irrigation method is replaced by novel irrigation techniques such as drip surface, root drip irrigations because of the profligacy water resource gradually.But existing manual irrigation technique; No matter be water directly to be pumped into irrigation pipe network irrigate from the pond; Or water delivered to the storage tank of eminence from pond pump, again from storage tank with water through gravity transfer to irrigation pipe network, all be unable to do without power (electric power or fuel engines etc.); This had both increased equipment investment, also wasted energy.
In addition; For most plants; The demand of the different moment of every day to moisture is different: need more moisture carry out photosynthesis when daytime is particularly sunny; And the moisture that night or when cloudy day need is less, even keeps less its root that can also force of soil moisture better to grow to deep subsoil at night.Adopt manual work to control irrigation, make the moisture of irrigation meet the needs of plant, not only bothered cost but also high.
Summary of the invention the object of the invention is open a kind of like this irrigation system, and it neither need import external impetus, the water yield that can adjust irrigation again automatically with meet plant by day with the growth needs at night.
Irrigation system of the present invention comprises the flow pipe of the water inlet pipe that is connected to the water source, drip emitters, connection drip emitters; It is characterized in that: have a seal box that utilizes the gas heat power to realize absorbing water and send water function; The inner space of seal box is divided into two parts, and the bottom is the water storage portion that is used for store water, and water storage portion top is the air chamber that is full of air; The bottom of seal box is provided with water inlet and delivery port; Water inlet is connected to water inlet pipe through a check valve, and delivery port is connected to flow pipe through a check valve.
Obviously, the inner and outer wall of the seal box casing at air chamber place can be directly through heat conduction and thermal radiation; Carry out heat exchange with the air of casing inner face and outside; Make the air themperature of air chamber the inside, along with ambient temperature raises and raises, along with environmental temperature reduces and reduces.And, can be provided with the top layer that helps absorptive thermal radiation at the cabinet exterior of air chamber for the better air temperature rise that improves air chamber, and such as making outer wall have melanic epipedon, better absorb sunlight, make air chamber temperature rise under solar radiation bigger.Perhaps the casing with air chamber is made up of transparent material, and makes inwall have melanic epipedon, makes sunlight can shine inwall and is also absorbed by inwall easily, and play greenhouse effect, temperature rise is bigger.And can be connected with and erect the metal fin that is provided with at the cabinet wall of air chamber.Fin helps cabinet wall and inner air to carry out heat exchange, also helps to make air to conduct heat up and down and keeps the air themperature of air chamber even up and down.
Irrigation system of the present invention is simple and ingenious; The seal box that is made up of air chamber and water storage portion plays the function of a two-way automatic pump: when daytime temperature rises; The air expanded by heating of seal box the inside air chamber; The water of water storage portion is pressed to drip emitters through delivery port and flow pipe, realize the irrigation effect; When night, temperature descended, the air chamber air was caught a cold to shrink and is formed negative pressure, absorbs water into from the water source through water inlet and water inlet pipe and replenishes.Daytime, sunlight was strong more, and then the air chamber temperature rise is high more, irrigated to the water of plant just more to satisfy the vigorous photosynthesis needs of plant; And run into the cloudy day or when rainy, even daytime, but because temperature has temperature rise even temperature to descend, then air chamber also can not expand, and can not irrigate in order to avoid cause the waste of water.
Irrigation system of the present invention; The gas heat power of utilizing temperature Change to produce realizes suction and irrigates; Neither need import external impetus, have the meaning of energy-saving and environmental protecting, and can be according to the variation of the sunlight and the temperature of day and night; Automatically adjust the irrigation state, better meet the needs of plant growing.Rainwater is collected as water source of the present invention, just can be become one and exempt from the non-maintaining rainwater utilization irrigation system of power, have extremely remarkable environmental meaning.Be particularly suitable for the greening in garden, gardens and the irrigation of flowers.
The hydraulic pressure that the present invention transfers out is lower, is suitable for common surface irrigation, drip surface and root drip irrigation etc., and is not suitable for sprinkler irrigation, also is not suitable for winter outside temperature and is low to moderate and uses can be freezing the time.
Description of drawings Fig. 1 is a principle schematic of the present invention.Fig. 2 is the structure and the scheme of installation of seal box.
According to accompanying drawing, embodiments of the invention are described below the embodiment.
Among Fig. 1, water source 1 can be an open water supply, or collects rainwater in the pond, or the artificial water source.Drip emitters 4 is a prior art, can be an aperture, or drip surface, or root drip irrigation etc., is used for to the plant irrigation of slowly feeding water.Drip emitters 4 can be one, or a plurality of composition irrigation network.The water inlet pipe 2 that connects water source 1 is common water pipe with the flow pipe that is connected drip emitters 43.These all are prior aries.
Innovative point of the present invention is that it utilizes ambient air temperature to change the gas heat power that is produced and realizes wash water and the seal box 7 that send water function.Seal box 7 can be cylindrical or square or other shapes, adopts gas impermeable material manufacturings such as plastics, and casing is stiff, promptly under illumination and pressure, all keeps solid shape.The inner space of seal box 7 is divided into two parts, and the bottom is the water storage portion 8 that is used for store water, and the top of water storage portion 8 is the air chamber 9 that is full of air.Seal box be installed in outdoor plant of need irrigating near, and can directly be shone by sunshine institute and be mapped to.The inner and outer wall of the casing at air chamber 9 places; Can be directly through heat conduction and thermal radiation, carry out heat exchange with the air of box house and outside, make the air themperature of air chamber 9 the insides; Along with the environmental temperature in the external world raises and raises, along with the environmental temperature in the external world reduces and reduces.
The bottom of seal box is provided with water inlet 10 and delivery port 11; Water inlet 10 is connected to water inlet pipe 2 through a check valve 5, makes water flow to water inlet 10 from water inlet pipe 2, and can't flow to water inlet pipe 2 from water inlet 10.Delivery port 11 is connected to flow pipe 3 through another check valve 6, makes water flow to flow pipe 3 from delivery port 11, and can't flow to delivery port 11 from flow pipe 3.Check valve belongs to prior art.The structure of its valve can only unidirectionally be passed through water, and market has ready-made product can supply to select for use.
The height of seal box and size are according to the water yield of required irrigation with irrigate on-site temperature Change amplitude and decide.Here provide one group of design data, and operation principle of the present invention is described with this.
Setting seal box 7 is cylinder, and interior diameter is 400mm, and promptly 0.4 meter, internal height is 800mm, and promptly 0.8 meter, the inner space that calculates seal box is about 100 liters.When installing and using, earlier toward a certain amount of water of the inner injection of seal box, such as 20 premium on currency.(can earlier seal box be inverted, behind water inlet 10 injection water, again seal box be righted).Then seal box bottom 20 premium on currency posts place part is the water storage portion 8 of seal box, and (the nearly 160mmm of 20 premium on currency posts i.e. 0.16 meter height), above the water storage portion 8, being full of between 80 lift-offs of air promptly is the air chamber 9 of seal box.Because seal box is a seal case, so the water of water storage portion has only minute quantity to flow out from delivery port 11 owing to gravity, therefore air chamber forms negative pressure; This negative pressure forms balance with the hydraulic pressure of water column; Make water can't continue to flow out, (0.16 meter height hydraulic pressure that water column produced is with respect to the standard atmospheric pressure of about 10 meter water column height; Be very weak, so the water of 1.6% the minute quantity of only having an appointment flows out).If there is not variation of temperature afterwards, then seal box can keep this poised state.
But because seal box is installed in outdoor, outdoor temperature except cloudy day and rainy day, every day, there was change procedure in different time.Generally be that ambient air temperature is minimum in the 5:00 AM left and right sides, such as being 15 degree, at this moment the air themperature of the long-time heat radiation of seal box process air chamber the inside equals the ambient air temperature of outside, i.e. kelvin rating T1=273+15=288K (Kelvin) basically; And in the afternoon during 3 left and right sides ambient air temperature the highest; Such as being 25 degree, penetrate because the seal box outside is directly shone by sunlight institute, and the inside air chamber seals; So at this moment the air themperature of air chamber is high more a lot of than outside environment temperature; More than 35 to 40 degree, calculate by 35 degree, i.e. kelvin rating T2=273+35=308K greatly; It also is the variations in temperature of the 20K of air themperature existence from 288K to 308K of air chamber.Theory according to aerothermodynami; Temperature T, pressure P and the volume V of the airtight air in air chamber the inside have following relation: P1V1/T1=P2V2/T2; Wherein P1, the pressure when V1 is T1=288K and volume; P1 approaches atmospheric pressure, and V1 approximates 80 liters of initial volumes, P2, the pressure when V2 is T2=308K and volume.Because the water of water storage portion can flow through water inlet or delivery port, so the variation of P1 and P2 is very little, can think that P1 is approximately equal to P2, so 86 liters of V2=V1T2/T1=80 * 308/288 ≈ are arranged.Also be air chamber temperature from morning minimum 15 degree rise to when spending afternoon the highest 35, the volume of its airtight air can be from 80 liters of expanded by heating to approximating 86 liters.The water that the air that expands can be oppressed water storage portion forces water slowly to flow to drip emitters 4 from delivery port 11, check valve 6, flow pipe 3, and plant is irrigated.The water yield that flows out also is that the irrigation volume theoretical value is the 86-80=6 liter.In actual the use, because air is not a perfect gas, irrigation volume is error to some extent.
And when after afternoon, ambient air temperature begins to descend, and seal box is air heat radiation to the outside conversely; The air themperature of air chamber the inside also can be from 35 the highest degree; Again slowly drop to 15 degree in morning, and form negative pressure owing to temperature descends to shrinking, check valve 5 is opened because check valve 6 is oppositely closed; So the negative pressure of air chamber will be drawn onto the water storage portion from water source 1 with water through water inlet 10, check valve 5, water inlet pipe 2, replenish and irrigate the water that is flowed out daytime.If temperature comes back to 15 degree, the water yield of inspiration just equals the water yield of outflow on daytime so.
So seal box of the present invention plays the function of a two-way automatic pump: when daytime temperature rose, the air expanded by heating of air chamber was pressed to drip emitters with the water of water storage portion through delivery port and flow pipe, realized the irrigation effect; When night, temperature descended, the air chamber air was caught a cold to shrink and is formed negative pressure, absorbs water into from the water source through water inlet and water inlet pipe and replenishes; Daytime, sunlight was strong more, and then the temperature rise of air chamber is high more, irrigated to the water of plant just many more; And run into the cloudy day or when rainy, even daytime, but because temperature has temperature rise even temperature to descend, then air chamber also can not expand, and can not irrigate in order to avoid cause the waste of water.
The Volume Changes Δ V=V1 Δ T/T1 of air chamber air depends primarily on the temperature difference of air, and less with the relation of temperature, as long as temperature can not be low to moderate water-ice is frozen, system all can work.And irrigation volume can be adjusted through the volume of change air chamber and the moisture storage capacity of water storage portion.And make the bore of seal box less more greatly and highly, and more can ignore the influence of water column pressure, make work more approach perfect condition.
Because the variation of temperature is very slowly, seal box casing inside and outside wall through heat conduction and thermal radiation, can satisfy the needs of heat exchange with air basically, does not also influence work even a bit lag behind.If think better to improve the temperature rise of air chamber, can be provided with the top layer that helps absorptive thermal radiation at the cabinet exterior of air chamber.Such as making outer wall have melanic epipedon, better absorb sunlight, make under the solar radiation air chamber temperature rise bigger.Perhaps the casing with air chamber is made up of transparent material, and makes inwall have melanic epipedon, makes sunlight can shine inwall and is also absorbed by inwall easily, and play greenhouse effect, temperature rise is bigger.Also can be connected with and erect the metal fin 12 that is provided with, like Fig. 2 at the cabinet wall of air chamber.Fin helps cabinet wall and air to carry out heat exchange, helps that also air is conducted heat up and down and keeps the air themperature of air chamber the inside even.Can reach more than 30 degree through improving the back air chamber air temperature difference, the irrigation volume of output can be reached about 10 liters.
And for the water temperature of the water that reduces water storage portion 8 the insides changes with temperature, preferably with the casing part of seal box water storage portion 8, the outside light shield layer 13 that adopts carries out shading and heat insulation processing.The setting height(from bottom) of seal box preferably makes the height of water storage portion height a little more than drip emitters.
According to operation principle of the present invention, seal box 7 is the air-locked seal case of box house and outside, but the convenience in order to process and to install also can be designed to dismountable structure with seal box, guarantees sealing as long as the back is installed.As a kind of better scheme, like Fig. 2, can be provided with the breather pipe 14 that is connected with air chamber 8 by seal box, breather pipe 14 has dismountable sealing cap 15.When seal box is installed, can open sealing cap 15, outwards bleed through breather pipe 14, make air chamber form negative pressure and suck the needed water of water storage portion through water inlet.And then build sealing cap 15, make seal box 7 keep sealing.This mode can be convenient to the installation of seal box and start use.
Claims (5)
1. automatic irrigation system of exempting from power comprises the flow pipe of the water inlet pipe that connects the water source, drip emitters, connection drip emitters; It is characterized in that: have a seal box that utilizes the gas heat power to realize absorbing water and send water function; The inner space of seal box is divided into two parts, and the bottom is the water storage portion that is used for store water, and water storage portion top is the air chamber that is full of air; The bottom of seal box is provided with water inlet and delivery port; Water inlet is connected to water inlet pipe through a check valve, and delivery port is connected to flow pipe through another check valve.
2. a kind of automatic irrigation system of exempting from power according to claim 1 is characterized in that: the cabinet exterior of said air chamber is provided with and helps to absorb the thermal-radiating top layer of sunshine.
3. a kind of automatic irrigation system of exempting from power according to claim 1, it is characterized in that: the casing of said air chamber is made up of transparent material, and makes inwall have melanic epipedon.
4. according to claim 1 or claim 2 or the described a kind of automatic irrigation system of exempting from power of claim 3, it is characterized in that: the cabinet wall of said air chamber is connected with and erects the metal fin that is provided with.
5. according to claim 1 or claim 2 or claim 3 or the described a kind of automatic irrigation system of exempting from power of claim 4, it is characterized in that: said seal box is provided with the breather pipe that is connected with air chamber, and breather pipe has dismountable sealing cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101864172A CN102812886A (en) | 2012-06-04 | 2012-06-04 | Motive-power-free automatic irrigation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101864172A CN102812886A (en) | 2012-06-04 | 2012-06-04 | Motive-power-free automatic irrigation system |
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| CN102812886A true CN102812886A (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101864172A Pending CN102812886A (en) | 2012-06-04 | 2012-06-04 | Motive-power-free automatic irrigation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440859A (en) * | 2019-09-10 | 2019-11-12 | 北京奥特美克科技股份有限公司 | A kind of gate system and its survey water tank |
| CN114027159A (en) * | 2021-12-09 | 2022-02-11 | 陈鑫宇 | Automatic watering device of solar pneumatic pump |
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| US4583918A (en) * | 1985-02-12 | 1986-04-22 | Danmine Siftware And Technology, Inc. | Arrangement for elevating liquid by use of solar and/or wind energy |
| RU2021703C1 (en) * | 1991-06-13 | 1994-10-30 | Михаил Федотович Лазарев | Water lift |
| GB2322673A (en) * | 1996-11-29 | 1998-09-02 | Roger Keith Todd | A pump |
| JP2001161194A (en) * | 1999-12-07 | 2001-06-19 | Tomotake Hiraoka | Automatic water supplying tool |
| JP2009112290A (en) * | 2007-11-01 | 2009-05-28 | Shigeki Maryu | Solar heat-using type waterer |
| CN202005161U (en) * | 2010-12-09 | 2011-10-12 | 宁建强 | Unpowered irrigation planting system for urban balconies and roofs |
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2012
- 2012-06-04 CN CN2012101864172A patent/CN102812886A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583918A (en) * | 1985-02-12 | 1986-04-22 | Danmine Siftware And Technology, Inc. | Arrangement for elevating liquid by use of solar and/or wind energy |
| RU2021703C1 (en) * | 1991-06-13 | 1994-10-30 | Михаил Федотович Лазарев | Water lift |
| GB2322673A (en) * | 1996-11-29 | 1998-09-02 | Roger Keith Todd | A pump |
| JP2001161194A (en) * | 1999-12-07 | 2001-06-19 | Tomotake Hiraoka | Automatic water supplying tool |
| JP2009112290A (en) * | 2007-11-01 | 2009-05-28 | Shigeki Maryu | Solar heat-using type waterer |
| CN202005161U (en) * | 2010-12-09 | 2011-10-12 | 宁建强 | Unpowered irrigation planting system for urban balconies and roofs |
Non-Patent Citations (1)
| Title |
|---|
| 顾波飞: "《太阳能自动灌溉系统》", 《杭州电子科技大学》, 1 December 2011 (2011-12-01) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440859A (en) * | 2019-09-10 | 2019-11-12 | 北京奥特美克科技股份有限公司 | A kind of gate system and its survey water tank |
| CN114027159A (en) * | 2021-12-09 | 2022-02-11 | 陈鑫宇 | Automatic watering device of solar pneumatic pump |
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Application publication date: 20121212 |