CN105028032A

CN105028032A - Greenhouse insulation structure and construction method

Info

Publication number: CN105028032A
Application number: CN201510406944.3A
Authority: CN
Inventors: 苗家轩; 王站成; 罗浩; 吴凤英; 刘方杰; 王小萍
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2015-07-13
Filing date: 2015-07-13
Publication date: 2015-11-11
Anticipated expiration: 2035-07-13
Also published as: CN105028032B

Abstract

The invention discloses a greenhouse insulation structure and a construction method. A deep trench is dug underground the edges of the east, the south and the west in a greenhouse, the surface of the deep trench is covered with soil after being covered with a cement cover plate, and the deep trench is internally filled with agriculture and forestry combustible padding locally burned. One side of the deep trench is provided with a ventilation main pipe communicated with the ground. Branched pipes extending into the deep trench are arranged on the ventilation main pipe at intervals so that a little of air can be supplied to the agriculture and forestry combustible padding. According to the greenhouse insulation structure and the construction method, due to the fact that the deep trench is filled with the agriculture and forestry combustible padding and the agriculture and forestry combustible padding is burned in a smoldering mode, heat can be continuously provided for the greenhouse, and the cold-proof heat preservation effect of the insulation structure is greatly improved. The ventilation main pipe supplies air into the deep trench, when the temperature is reduced on a gale day, the larger the wind speed is, the more the air supplied into the deep trench is, smoldering is accelerated, dispersing of heat is increased, and the effect of automatically adjusting the heating amount according to the outdoor environment is achieved.

Description

A kind of greenhouse heat-insulating structure and construction method

Technical field

The present invention relates to the greenhouse that proportion of crop planting field is used, specifically a kind of greenhouse heat-insulating structure and construction method.

Background technology

Winter, the temperature in the north was general lower, and the greenhouse of Planting Crops generally will lean on the artificial bavin that burns to warm oneself, and needs greenhouse straw screen or mat bedding to be incubated at night.But because the ground in greenhouse also can outside radiations heat energy, therefore, inside greenhouse or on the ground of the adjacent body of wall in outside, excavate Cold-proof Ditch often, in Cold-proof Ditch, then fill the agro-product processing such as straw, straw residue.This Cold-proof Ditch can only be accomplished, simply every cold, can not be initiatively greenhouse additional heat, and when cool winds, do not have suitable heat supplement, cold-proof poor effect.

Summary of the invention

Simply but can not the problem of effectively additional heat, cold-proof weak effect every cold effect for solving that the Cold-proof Ditch of prior art can only play, the invention provides a kind of greenhouse heat-insulating structure and construction method.

The present invention is the technical scheme solving the problems of the technologies described above employing: a kind of greenhouse heat-insulating structure, in greenhouse in the east, a underground excavation zanjon at the south and edge, west, soil layer is covered with again after the surface cement cover board capping of zanjon, the agricultural combustible filler being provided with local and lighting is filled out in zanjon, the bottom of zanjon and sidewall are built into by brick layer respectively, and it is floating at the surface cement sand bed of brick layer, the air trunk communicated with ground is offered in the side of zanjon, air trunk is provided with the arm extending into zanjon inside every a segment distance, to provide a small amount of air to agricultural combustible filler.

Described deep trench excavation is on the ground of the reinforced concrete beam of adjacent greenhouse inwall, and the below of reinforced concrete beam is followed successively by brick mixes grade beam layer and telford base layer.

The construction method of greenhouse heat-insulating structure of the present invention is as follows:

1) the underground excavation zanjon of the adjacent body of wall in the east in greenhouse, the south and west, when excavating zanjon every the pre-buried arm of a segment distance;

2) air trunk of the embedded underground outside greenhouse, the two ends of this air trunk extend to northeast corner and the northwest corner in greenhouse respectively;

3) by all arms pre-buried in step 1) and step 2) air trunk be communicated with, can be in communication with the outside by arm, air trunk after top seal to make zanjon;

4) prepare agricultural combustible filler and be filled into compacting in zanjon

Combustible in selecting agriculture and forestry to produce mixes with corn stalk powder particle, and the water mix then adding its weight 5% is wherein even, i.e. obtained agricultural combustible filler, is then inserted also compacting in zanjon;

Combustible in described agriculture and forestry production is leaf, sawdust, pine needle or agricultural crop straw;

5) predetermined registration operation mouth

On the basis of step 4), delimit a gathering hole in advance every a segment distance, then use cement cover board to be closed by the zanjon of not operation mouth position, and lay argillic horizon on cement cover board;

6) when entering the winter, in each gathering hole, all placing yin fire kind, then using cement cover board to be closed by gathering hole, and covering the construction that argillic horizon can complete greenhouse heat-insulating structure.

Yin fire kind in described step 6) refers to and is converted into after three sections by 3-5 root corn dry straw, and one end is lighted and made the state of its ignition one half.

The bottom of zanjon and sidewall is excavated first with brick one deck inwall in described step 1), and then floating by cement mortar.

In the present invention, air trunk has two outlets, is located at the northeast corner outside greenhouse and northwest corner respectively, is surrounded by heat-preservation cotton or alumina silicate fibre outside air trunk.

In the present invention, described agricultural combustible filler refers to forest and agricultural biomass and a small amount of water mixs such as pine needle, Poplar leaves, sawdust, agricultural crop straw, agricultural combustible filler is inserted after in zanjon, zanjon places a yin fire kind every about 10 meters, and (yin fire kind is that 3-5 root corn dry straw is converted into three sections, light the general left and right of postignition burning), then cement cover board and overburden layer in its surface cover, now yin fire kind will be extinguished, but under the effect of waste heat, agricultural combustible filler can start a kind of without fire burning, be commonly called as and glow, what continue provides heat.

Beneficial effect: the present invention by filling agricultural combustible filler and make it glow in zanjon, thus continue provide heat for greenhouse, increased substantially the cold-proof heat insulation effect of insulation construction; And air trunk supplements air in zanjon, when cool winds, wind is larger, and the air supplemented wherein is more, thus accelerates to glow, increasing the distributing of heat, thus achieves the effect according to outdoor environment regulation heating amount voluntarily.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Reference numeral: 1, soil, 2, telford base layer, 3, brick mixes grade beam layer, 4, arm, 5, reinforced concrete beam, 6, agricultural combustible filler, 7, soil layer, 8, cement cover board, 9, cement sand bed, 10, brick layer, 11, air trunk.

Embodiment

Below in conjunction with specific embodiment, the present invention is further elaborated.

As shown in the figure, a kind of greenhouse heat-insulating structure, in greenhouse in the east, a underground excavation zanjon at the south and edge, west, soil layer 7 is covered with again after surface cement cover board 8 capping of zanjon, the agricultural combustible filler 6 being provided with local and lighting is filled out in zanjon, the bottom of zanjon and sidewall are built into by brick layer 10 respectively, and it is floating at the surface cement sand bed 9 of brick layer 10, the air trunk 11 communicated with ground is offered in the side of zanjon, air trunk 11 is provided with the arm 4 extending into zanjon inside every a segment distance, to provide a small amount of air to agricultural combustible filler 6.

Described deep trench excavation is on the ground of the reinforced concrete beam 5 of adjacent greenhouse inwall, and the below of reinforced concrete beam 5 is followed successively by brick mixes grade beam layer 3 and telford base layer 2; Air trunk 11 has two outlets, is located at the northeast corner outside greenhouse and northwest corner respectively, is surrounded by heat-preservation cotton or alumina silicate fibre outside air trunk 11.

When greenhouse construction, east, south, Xi Qiang each 3-5 rice when laying foundation stays a ventilating opening, the arm 4 of the pre-buried diameter 6-8cm of ventilating opening, height distance basis bottommost is about about 15cm, outside, basis arm 4 and to be connected to a diameter be the air trunk 11(material of 20cm be plastics, iron) on, air trunk 11 is opened on northeast corner outside greenhouse and northwest corner.In the east in greenhouse, south, west basic internal excavate the zanjon of wide 1-1.5m, dark 2-2.5m, bottom surface and the sidewall individual layer common brick of ditch assemble, and utilize the cement mortar of 2cm floating; The cement cover board 8 of prefabricated some thick 80cm is with closed zanjon.When coming into operation before greenhouse prepares the winter, together with maize straw fragment mix long with 10cm for the forest and agricultural biomass such as pine needle, Poplar leaves, sawdust, drench little water, every 100kg compound is watered 5kg and fully stirs, the material be fully stirred is filled out in zanjon, manually treads.Cover cement cover board 8, when lid cement cover board 8, notice that every about 10 meters put a yin fire kind (yin fire kind is that 3-5 root corn dry straw is converted into three sections, lights the general left and right of postignition burning), above material in zanjon, cover cement cover board 8 at once immediately; In order to construction safety, first can cover most cement cover board 8, only leave that to need to drop into that of yin fire kind several, cover after waiting to drop into yin fire kind, flue gas seals by the soil layer 7 prefabricated board burying again lid 10cm.At this moment the yin fire kind of the inside will be extinguished, but under the effect of waste heat, material starts a kind of without fire burning, is commonly called as and glows.At this moment other coverings in greenhouse are built, prepare normal operation, when day temperature is at ordinary times not too cold, with plank, air trunk 11 can be blocked, zanjon heat release is slow, about opening half when can be the temperature requirement in outdoor temperature situation or greenhouse when evening, can open completely in the coldest field, zanjon fully generates heat, north temperature when blowing north wind is minimum, one when blowing north wind, a little oxygen is blown in zanjon, accelerate and glow, north wind is larger, heat release is higher, most high energy reaches more than 30 DEG C, the material inserted can maintain one half to two months, substantially the stage needing most and keep out the cold has been spent, if think that the duration falls short of, can continue and fill out raw material, or strengthen the internal diameter of zanjon the coming year.When Second Year needs filler, the residue ashes of last year are taken out.

Claims

1. a greenhouse heat-insulating structure, in greenhouse in the east, a underground excavation zanjon at the south and edge, west, soil layer (7) is covered with again after surface cement cover board (8) capping of zanjon, it is characterized in that: in zanjon, fill out the agricultural combustible filler (6) being provided with local and lighting, the bottom of zanjon and sidewall use brick layer (10) to be built into respectively, and it is floating at the surface cement sand bed (9) of brick layer (10), the air trunk (11) communicated with ground is offered in the side of zanjon, air trunk (11) is provided with the arm (4) extending into zanjon inside every a segment distance, to provide a small amount of air to agricultural combustible filler (6).

2. a kind of greenhouse heat-insulating structure according to claim 1, it is characterized in that: described deep trench excavation is on the ground of the reinforced concrete beam (5) of adjacent greenhouse inwall, and the below of reinforced concrete beam (5) is followed successively by brick mixes grade beam layer (3) and telford base layer (2).

3. a kind of greenhouse heat-insulating structure according to claim 1, is characterized in that: the construction method of described greenhouse heat-insulating structure is as follows:

1) the underground excavation zanjon of the adjacent body of wall in the east in greenhouse, the south and west, when excavating zanjon every the pre-buried arm (4) of a segment distance;

2) air trunk (11) of the embedded underground outside greenhouse, the two ends of this air trunk (11) extend to northeast corner and the northwest corner in greenhouse respectively;

3) by all arms (4) pre-buried in step 1) and step 2) air trunk (11) be communicated with, can be in communication with the outside by arm (4), air trunk (11) after top seal to make zanjon;

4) prepare agricultural combustible filler (6) and be filled into compacting in zanjon

Combustible in selecting agriculture and forestry to produce mixes with corn stalk powder particle, and the water mix then adding its weight 5% is wherein even, i.e. obtained agricultural combustible filler (6), is then inserted also compacting in zanjon;

5) predetermined registration operation mouth

4. a kind of greenhouse heat-insulating structure according to claim 3, is characterized in that: the yin fire kind in described step 6) refers to and is converted into after three sections by 3-5 root corn dry straw, and one end is lighted and made the state of its ignition one half.