CN101695263B - Warm-in-winter energy-saving solar greenhouse - Google Patents
Warm-in-winter energy-saving solar greenhouse Download PDFInfo
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- CN101695263B CN101695263B CN2009100758386A CN200910075838A CN101695263B CN 101695263 B CN101695263 B CN 101695263B CN 2009100758386 A CN2009100758386 A CN 2009100758386A CN 200910075838 A CN200910075838 A CN 200910075838A CN 101695263 B CN101695263 B CN 101695263B
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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
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention discloses a warm-in-winter energy-saving solar greenhouse, which consists of a left wall body, a right wall body, a rear wall body, and a transparent daylighting greenhouse surface consisting of a steel frame girder structure and a greenhouse membrane. The azimuth angle of the greenhouse is 5 degrees deflected towards the west from the south of the true meridian; the greenhouse is 55 to 60 meters long; the inner horizontal width of the greenhouse is 7.0 to 7.2 meters, wherein the horizontal width of a front sloping surface is 5.5 to 6.0 meters, and the horizontal width of a rearsloping surface is 1.2 to 1.7 meters; a greenhouse ridge is 3.2 to 3.4 meters high; the greenhouse is integrally dug downwards by 0.5 to 0.6 meters; the left and right wall bodies of the greenhouse are 2 meters thick; lateral lines of the left and right wall bodies are perpendicular; the inner side of the rear wall is 2.1 to 2.3 meters high; the upper part of the rear wall body is narrowest and the narrowest part is 2 meters wide; the inner wall line of the rear wall body is basically perpendicular, while the outer wall line is naturally formed into a slope by earth mass; the front base angleof the daylighting greenhouse surface is 63 degrees, and the angle of the rear sloping surface is 35 to 40 degrees; the inclination angles of the positions of the daylighting greenhouse surface whichare vertically 0.75, 1.75, 2.75 and 3.75 meters away from the front base angle are 39 degrees, 25 degrees, 18 degrees and 12 degrees respectively; and the rear sloping surface is 0.6 to 0.65 meters thick. The warm-in-winter energy-saving solar greenhouse of the invention is suitable to be built in cold areas of a north latitude 39 to 41 degrees and can utilize solar radiation to maintain the normal growth of warm season vegetables to perform out-of-season culture on the warm season vegetables. The invention also comprises a method for building the greenhouse.
Description
Technical field
The invention belongs to the installment agriculture growth technical field, relate to a kind of greenhouse by solar heat, particularly relate to a kind of suiting and the invention still further relates to the method for construction of this energy saving greenhouse at the warm-in-winter energy-saving solar greenhouse of 39～41 ° of cold area construction of north latitude.
Background technology
The research of China's protection ground vegetables facility starts from five sixties of twentieth century, obtains flourish in the nearly more than ten years.At present, greenhouse by solar heat has obtained general application in the vast rural area of China.By greenhouse by solar heat, make fresh vegetables, melon and fruit realize off-season cultivation, satisfied consumer demand.
Although the design of greenhouse by solar heat is constantly improving raising, existing greenhouse by solar heat still exists daylighting and the unfavorable problem of heat insulation effect.Chinese patent CN1954660A " a kind of novel solar greenhouse " discloses a kind of greenhouse by solar heat building technology that improves daylighting area in the V-type groove that is pressed in by nylon rope; CN1554222A " income stable type greenhouse by solar heat " discloses a kind of greenhouse by solar heat, south by west 4-6 ° at its azimuth, the wall base is thick to cover the thermal screen that one deck is made with plastic film with locality 0.2 meter of frozen soil depth minus over the years on the canopy film, improve the daylighting and the heat insulation effect in greenhouse with this; CN101116408A " a kind of greenhouse by solar heat of variable incidence daylighting face " then can make lighting roof follow extraneous illumination condition change self inclination angle, thereby reaches the purpose that improves the daylighting rate.
More than these prior aries light transmissivity of Sunlight Greenhouse and heat insulation effect are all increased.But, because China is geographical vast, the regional climate luffing is big, especially in north latitude 39-41 ° zone, winter severe cold, day and night temperature are big, if indiscriminately imitate the greenhouse by solar heat canopy type of these moulding, vegetables, the melon and fruit of happiness temperature are not heated and still can not be survived the winter, and can not realize anti-season production and listing around the Spring Festival, high investment appears, production status that can not high production, the enthusiasm for production of having dampened to big rise and big fall a part of vegetable grower has hindered the development of greenhouse by solar heat.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of and suit at the warm-in-winter energy-saving solar greenhouse of north latitude 39-41 ° of degree cold area construction, this greenhouse can utilize solar radiation to keep the normal growth of warm season vegetable, carries out the off-season cultivation of warm season vegetable.
A kind of method of construction of this warm-in-winter energy-saving solar greenhouse is provided, and is another goal of the invention of the present invention.
The object of the present invention is achieved like this:
A kind of warm-in-winter energy-saving solar greenhouse, by left and right sides body of wall, back wall and constitute by the steelframe transparent shelf daylighting face that body structure and greenhouse canopy film form that spreads out, the azimuth in greenhouse is 5 ° of true meridian souths by west, the long 55-60 rice in greenhouse, horizontal width 7.0-7.2 rice in the greenhouse canopy, domatic horizontal width 5.5-6.0 rice wherein, the domatic horizontal width 1.2-1.7 rice in back, canopy ridge height 3.2-3.4 rice, dig 0.5-0.6 rice under the greenhouse integral body, 2 meters of the left and right sides, greenhouse thickness of wall body, two side lines are vertical, after side height 2.1-2.3 rice within the walls, back wall thickness with top for the narrowest, 2 meters at the narrowest place, the interior wall line is vertical substantially, exterior wall line nature soil body completion slope, the preceding base angle of shelf daylighting face is 63 °, the domatic angle in back is 35-40 °, the preceding base angle of shelf daylighting identity distance vertical range 0.75,1.75,2.75,3.75 the canopy face tilt angle at rice is respectively 39 °, 25 °, 18 °, 12 °, adverse grade face thickness 0.6-0.65 rice.
Greenhouse canopy film adopts the three-layer co-extruded plastics composite canopy film of 7-10 silk, and the back wall in the greenhouse hangs the Reflecting curtain of aluminizing.
The present invention digs the winter protection ditch of a dark 0.5-0.8 rice, wide 0.5-0.7 rice at 0.25-0.3 rice, the preceding payment to a porter outside in greenhouse, the length of this winter protection ditch or the length of slightly being longer than greenhouse identical with the length in greenhouse.
The method of construction of warm-in-winter energy-saving solar greenhouse of the present invention may further comprise the steps:
(1) select the place to select the place that physical features is smooth, high and dry, leeward, face south.In the mountain area, can use terraced fields Kan Bi, the Tu Ya of nature hidding and sunny side after wall build, can save the building materials expense, strengthen heat accumulation, the heat-insulating property of keeping out the wind, keep out the cold, possess water conservancy, power conditions, have a good transport service, do not have " three wastes " and pollute.
(2) determine to build the greenhouse time for the ease of using and reducing the soil thermal loss, the greenhouse should complete before local daily mean temperature 14-16 ℃, and the time is before September 20 substantially.
(3) place location and the level land unwrapping wire Due South that is defined as the greenhouse with 5 ° of true meridian souths by west to;
(4) determine greenhouse group's row and row apart between greenhouse row and the row apart from being 5 meters, between row and row apart from 5.8-6.7 rice;
(5) dig greenhouse and walling under
1. build adobe wall and earlier the mellow soil layer of 0.25-0.3 rice is shoveled the accumulation of front, greenhouse, the immature soil that digs 0.5-0.6 rice down is used for walling, with earth scraper with wall and side wall line position, the left and right sides shovel soil backward of the immature soil in the greenhouse line, suppress into adobe wall, per 30 centimetres of suppressions once, suppression successively raises, up to requiring height;
2. soil is neatly vertically shoveled to the bottom with the inboard body of wall of canopy in the canopy inboard, and soil is thrown outside the wall, and arrangement back canopy is the about 3.5 meters width in seat basis medially, receive 2 meters on top;
3. build back wall reinforcing bar scaffolding basis on back wall every 1 meter ditch that vertically digs 25 * 25 centimetres, build 5 layers of brick as reinforcing bar scaffolding basis with cement mortar, build layer 2-3 earlier, build layer 2-3 again after placing frame;
4. payment to a porter reinforcing bar shed footing foundation is made with fragment of brick or stone and cement mortar before building;
5. after the body of wall completion, canopy is gone in the mellow soil layer backfill of greenhouse foreset heap.
(6) unification of reinforcing bar shed frame is installed and produces 63 ° at preceding base angle, domatic angle 35-40 ° of back, the canopy face tilt angle at distance 0.75,1.75,2.75,3.75 meters of vertical range, preceding base angle is respectively 39 °, 25 °, 18 °, 12 ° reinforcing bar shed frame, the front and back pin of shed frame is separately fixed on preceding payment to a porter reinforcing bar shed footing foundation and the back wall reinforcing bar scaffolding basis, reinforcing bar shed frame is fixed with conventional method.
(7) forward position, greenhouse digs that a dark 0.5-0.8 rice, wide 0.5-0.7 rice are dug in 0.25-0.3 rice, the payment to a porter outside before the winter protection ditch greenhouse, length is identical with greenhouse length or slightly be longer than the winter protection ditch of greenhouse length, be encased inside layer of plastic film behind the leveling bottom of trench, prevent to return on the underground moisture, insert insulation materials such as corn stalk or sunflower pole again, the upper cover layer of plastic film, live with earth mulch, prevent to rain and soak into.
(8) cover straw screen or mat straw screen or mat width 1.2-1.5 rice, length with the front with the winter protection ditch and on the south 1 meter face cover, cross canopy ridge adverse grade lid backward and be degree for 1.5 meters.At north latitude 39-41 ° high and cold area, generally cover the anti-aging film that two layers of straw screen or mat and outside cover 5 of epistasis, the effect of, snow defence rainproof, insulation and protection straw screen or mat to play at severe winter.
(9) cover the canopy film and cover the canopy film with the three-layer co-extruded plastics composite canopy film of hanging up Reflecting curtain employing 7-10 silk on the greenhouse frame of building up, Reflecting curtain is connected into 2 meters wide, with the Reflecting curtain of greenhouse equal in length, East and West direction is suspended on the wall of back.
Warm-in-winter energy-saving solar greenhouse of the present invention has the following advantages and good effect:
(1) the present invention by in lighting roof angle, booth orientation, dig formula greenhouse, thickness of wall body down, the many-sides such as reasonable length of digging winter protection ditch, the domatic ratio in front and back, energy-saving solar greenhouse have carried out technological improvement to the greenhouse, make in the greenhouse that north latitude 39-41 ° of cold area built to reach 10 ℃, realized the effect of not heating severe winter and producing in halcyon days canopy in morning temperature.(2) by above-mentioned technological improvement, days back before midday about 2 hours severe winter " three nine-day periods after the winter solstice ", temperature of shed can reach about 35 ℃, to the gas exchange in energy-saving solar greenhouse with reduce that humidity provides technical guarantee in the canopy, make the canopy chamber can absorb heat, store heat to greatest extent, for basic condition has been created in the heat release in evening.During high temperature about 35 ℃, can utilize and open the skylight noon and carry out gas exchange and hydrofuge, and the decline of humidity helps the normal growth of vegetables and alleviate vegetables suffer various diseases infringements because of hot and humid, low temperature and high relative humidity drawback.(3) the invention belongs to vegetables in improper season energy-saving solar greenhouse, 1 year can two batches or many batches of productions, can accomplish the autumn and winter stubble, the stubble of surviving the winter, Winter-Spring stubble, early spring stubble, summer stubble cultivation, the realization anniversary produces, and arranges planting plan according to the ripe property size that market surplus and deficiency is regulated each batch.(4) energy-saving solar of the present invention greenhouse adopts the steelframe body structure that spreads out to build, sturdy and durable, safe and reliable, good stability, and wind resistance snow ability is stronger, and the life-span is long, once builds canopy and can use 20-30.
Warm-in-winter energy-saving solar greenhouse of the present invention can utilize solar radiation to keep the warm season vegetable ordinary production, can carry out the warm season vegetable off-season cultivation, the production of not heating severe winter, halcyon days canopy in morning temperature can reach 10 ℃, 8 ℃ of cloudy snow day short time, reach the plant physiology temperature requirement substantially.Therefore, energy-saving solar of the present invention greenhouse remarkable in economical benefits is easy to apply.
Embodiment
Build warm-in-winter energy-saving solar greenhouse north latitude 39-41 ° of cold area.
At first select physical features smooth, high and dry, leeward, on the sunny side, the place of traffic convenience.Generally at the beginning of 9 months, start building, finished before September 20.This is because the vegetables in improper season greenhouse by solar heat generally uses in March in September to next year, for the ease of using and reducing the soil thermal loss, the greenhouse should complete before local daily mean temperature 14-16 ℃, temperature decline afterwards is very fast, if the booth completion is later, needs approximately could recover the booth normal temperature about January, just can not guarantee to like temperature, like of the requirement of light vegetables temperature, can only plant leaf vegetables, yield of vegetables and economic benefit are had a greatly reduced quality, and have prolonged the investment repayment phase.
In order to maximally utilise sunlight, the orientation that the many employings in greenhouse are sat in the north facing the south, thing prolongs.Theoretically, the photosynthesis in the morning be one day 70%, if heat booth with by east for well, and warm-in-winter energy-saving solar greenhouse is the greenhouse by solar heat that designs for winter does not heat, can not open straw mat prematurely winter in severe cold, again with orientation to the west for well, can prolong the afternoon sunshine time like this, help night insulation.Build the energy-saving solar greenhouse at north latitude 39-41 ° of high and cold area, winter, outside air temperature was very low, and the result of theory and practice is comprehensive daylighting, utilizes true meridian to be advisable for 5 ° to the west.
General people determine that the due south all is as the criterion with compass, and just there are birth defects in the booth of Jian Zaoing like this, because the south poles axle center is the foundation in definite due south, and true meridian just, sun lights is that the zero degree warp is the due south on warp; And there are certain magnetic biasing angle in the south of magnetic south pin and true meridian south, about 4 ° take over (with booth seat south orientation west, the magnetic declination of 2007 years national up-to-date mensuration is to be all example greatly).If the Due South in greenhouse is to being that true meridian is to the west 5 °, actual is exactly the to the west 9 ° of magnetic south pin, so just causes the congenital deficiency of booth.Take Due South to the west 5 ° for true meridian during construction, or the magnetic south pin is to the west 1 °, so just is unlikely to cause the congenital deficiency of booth.
Determine that the distance between greenhouse series and the row is 5 meters, with the transportation of convenient vegetable, melon and fruit, greenhouse distance between row and row is 6.5 meters, has not only improved land utilization rate but also the front-seat sunlight that does not hide back row.
When building the greenhouse, dig greenhouse and walling under at first being.Dig the advantage in greenhouse down, the one, the little and insulation of canopy temperature amplitude of diurnal variation luffing in the winter time.The 2nd, 2 meters of booth back walls, actual external height has only 1.6-1.8 rice, has both alleviated construction volume, has reduced again to stop cold temperature encroachment area, has played the construction effect that gets twice the result with half the effort.1. build and earlier 30 centimetres of mellow soil layers shoveled the front with earth scraper before the adobe wall walling and pile up, after the greenhouse walling is finished again with the mellow soil backfill.With earth scraper suppression adobe wall basis, then with wall and side wall line position, the left and right sides shovel soil backward of the soil in the greenhouse line, general per 30 centimetres of suppressions once, suppression successively raises, up to requiring height, also realized the purpose of digging 0.4-0.6 rice under the greenhouse integral body behind the native vallum in the greenhouse.2. the soil body is neatly shoveled to the bottom so that the East and West direction line is vertical substantially in the canopy inboard, and soil is thrown outside the wall, the inboard about 3.5 meters width in back of putting in order of ground seat basis canopy, 2 meters on receipts top.3. back wall reinforcing bar scaffolding basis is laid bricks 5 layers 25 * 25 centimetres of the vertical ditchings in per 1 meter with cement mortar, builds layer 2-3 earlier, builds layer 2-3 again after putting frame.4. preceding payment to a porter reinforcing bar shed footing foundation is made with fragment of brick or stone cement mortar; 5. after the body of wall completion, canopy is gone in the mellow soil layer backfill of long-pending heap.
Next is the welding and the installation of reinforcing bar shed frame.1. greenhouse frame fixed angle method marks straight line on construction ground, determine the O point, every level vertically measures the designs fix angle points by drawing, promptly 0.75 meter vertically measures 1.19 meters, 1.91 meters at 1.75 meters, 2.38 meters at 2.75 meters, 3.75 2.73 meters at rice, 4.75 2.93 meters at of rice, 3.1 meters at 5.5 meters, 3.0 meters at 6 meters (during construction arbitrarily definite 2 get final product).Fix two steel struts at every, and stay folder reinforcing bar space, be 63 °, 39 °, 25 °, 18 °, 12 ° of design elevation angle angles, 35-40 ° at the adverse grade angle of depression.2. reinforcing bar outside under the reinforcing bar fixed mount in the fixing and welding fabrication greenhouse frame of greenhouse frame, can take front-end and back-end each every 10 centimetres, mid portion 25-35 centimetre of fixing reinforcing bar column, brace is 50 centimetres.Two reinforcing bars are pressed in the crack, are welded into triangle with the billet reinforcing bar, fix two long reinforcing bars after, promptly make a moulding frame.Because the frame model is the same, the frame shape of producing, size have guaranteed the uniformity of construction size too.The welding method of the basic pin connecting reinforcement in front and back is: with the parallel welding of benchmark parallel lines, during construction base angle before and after the accurate frame of day-mark parallel with construction ground horizontal line identical after, just reached the angle requirement of design canopy face, whenever the rest may be inferred continuously to put up the type frame, the welding seven connecting reinforcements a canopy greenhouse.3. pin has 15-20 centimetre built-in fitting part before and after the shed, fixes with cement mortar up and down.
Then be that the fixing of reinforcing bar shed frame fixed with Φ 10 spirals, sloping electric welding is fixed 6 before and after reinforcing bar inboard in frame, and the outside electric welding of ridge eminence reinforcing bar outside bow member is one of reinforcement Φ 16 steel fixedly.Welding 7 road lacing wires in the booth total span, every drawing rib length are greater than long 4 meters of canopy, and 2 meters on every limit is welded claw and fixed outside brick wall.Every frame junction one face down bonding connects 20 centimetres of reinforcements.
Be to dig the winter protection ditch subsequently in the forward position, greenhouse.The winter protection ditch can stop effectively soil heat unofficial biography and the outer soil low temperature of canopy in the canopy in invade, prevent that the crop root in canopy forward position is subjected to injury from low temperature.Therefore, the winter protection ditch is the important structure part of warm type greenhouse by solar heat of winter.Specific practice is that 0.25 meter, the payment to a porter outside is dug one dark 0.6 meter, wide 0.5 meter before the greenhouse, slightly be longer than the winter protection ditch of booth length, be encased inside the old plastic film of one deck behind the leveling bottom of trench, prevent to return on the underground moisture, insert insulation materials such as corn stalk or sunflower pole then, the watertight old plastic film of upper cover one deck is lived with earth mulch, or with old plastic film parcel phenylpropyl alcohol plate also can, soak into to prevent to rain.
One in the greenhouse also is provided with between operation, to prevent that cold season, cold wind directly was blown into the greenhouse, plays cushioning effect.Require the buffering room to be located at the booth east side and be advisable, specification is 4 * 3 meters of length and width or 3 * 2.5 meters, and door and window, also can be lived for the personnel of management booth except that playing the insulation effect of keeping out the wind all towards south.
Be to cover straw screen or mat at last.With 1.5 meters of width, length with cover forward the winter protection ditch and on the south 1 meter face, covered 1.5 meters degree of being of canopy ridge adverse grade lower cover backward, cover two layers of straw screen or mat at severe winter, cover the anti-aging epistasis in the straw screen or mat outside.
On the greenhouse frame of building up, cover high-quality canopy film, and be connected into 2 meters wide, with the Reflecting curtain of greenhouse equal in length, be suspended on the transmeridional iron wire of back wall after, promptly build up energy-saving solar of the present invention greenhouse.The energy-saving solar greenhouse is hanged up the metallized film Reflecting curtain and is one and effectively heats the light filling measure, and the effective range of adding lustre to of Reflecting curtain is generally apart from the Reflecting curtain southern side in 3 meters, and December in winter, rate was added lustre at 44.5-9.1% in ground, 0.6 meter eminence rate 43-7.8% that adds lustre to.Because Reflecting curtain has improved illumination condition, makes ground absorb more solar radiation, temperature, ground temperature also increase thereupon, and general ground temperature can increase 0.5-3.0 ℃.And ground temperature heat effect, 5 centimetres are higher than 10 centimetres, fine day is higher than the cloudy day, and is near more apart from Reflecting curtain, it is obvious more to heat effect.
Claims (4)
1. warm-in-winter energy-saving solar greenhouse, by left and right sides body of wall, back wall and constitute by the steelframe transparent shelf daylighting face that body structure and greenhouse canopy film form that spreads out, the azimuth in greenhouse is 5 ° of true meridian souths by west, the interior wall line is vertical substantially, exterior wall line nature soil body completion slope, the preceding base angle of shelf daylighting face is 63 °, the domatic angle in back is 35-40 °, the preceding base angle of shelf daylighting identity distance vertical range 0.75,1.75,2.75,3.75 the canopy face tilt angle at rice is respectively 39 °, 25 °, 18 °, 12 °, the winter protection ditch has been dug in the preceding payment to a porter outside in the greenhouse, it is characterized in that: horizontal width 7.0-7.2 rice in the greenhouse canopy, wherein preceding domatic horizontal width 5.5-6.0 rice, the domatic horizontal width 1.2-1.7 rice in back, canopy ridge height 3.2-3.4 rice, dig 0.5-0.6 rice under the greenhouse integral body, 2 meters of the left and right sides, greenhouse thickness of wall body, two side lines are vertical, after side height 2.1-2.3 rice within the walls, 2 meters at the narrowest place of back wall thickness, described winter protection ditch is positioned at 0.25-0.3 rice, the payment to a porter outside before the greenhouse, dark 0.5-0.8 rice, wide 0.5-0.7 rice.
2. warm-in-winter energy-saving solar greenhouse according to claim 1, it is characterized in that described back wall thickness with top for the narrowest.
3. warm-in-winter energy-saving solar greenhouse according to claim 1 is characterized in that the domatic thickness in described back is 0.6-0.65 rice.
4. warm-in-winter energy-saving solar greenhouse according to claim 1 is characterized in that described greenhouse canopy film adopts the three-layer co-extruded plastics composite canopy film of 7-10 silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100758386A CN101695263B (en) | 2009-10-26 | 2009-10-26 | Warm-in-winter energy-saving solar greenhouse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100758386A CN101695263B (en) | 2009-10-26 | 2009-10-26 | Warm-in-winter energy-saving solar greenhouse |
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| Publication Number | Publication Date |
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| CN101695263A CN101695263A (en) | 2010-04-21 |
| CN101695263B true CN101695263B (en) | 2011-08-17 |
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| CN2009100758386A Expired - Fee Related CN101695263B (en) | 2009-10-26 | 2009-10-26 | Warm-in-winter energy-saving solar greenhouse |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696430B (en) * | 2012-05-31 | 2014-07-30 | 北京农业智能装备技术研究中心 | Groove-type solar greenhouse and method for constructing same |
| CN104396626B (en) * | 2014-11-14 | 2017-01-11 | 内蒙古风水梁菌业有限公司 | Plant cultivation room |
| CN111837741A (en) * | 2020-08-24 | 2020-10-30 | 北京金晟达生物电子科技有限公司 | Dig formula greenhouse down suitable for severe cold district |
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