CN115250797A - Warmhouse booth with fly ash base heat accumulation building block - Google Patents
Warmhouse booth with fly ash base heat accumulation building block Download PDFInfo
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- CN115250797A CN115250797A CN202210483463.2A CN202210483463A CN115250797A CN 115250797 A CN115250797 A CN 115250797A CN 202210483463 A CN202210483463 A CN 202210483463A CN 115250797 A CN115250797 A CN 115250797A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
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- Ceramic Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The utility model relates to a warmhouse booth with fly ash base heat accumulation building block, the warmhouse booth who discloses includes the wall body, the wall body is established by fly ash base heat accumulation building block step and is formed, fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, the phase transition heat-sink shell orientation warmhouse booth's sunny side, fly ash content is 50% to 90% in the heat accumulation layer, the phase transition heat-sink shell is made by phase change material. Above-mentioned scheme can solve the heat of wall body deposit and scatter and disappear very fast problem to slow down the thermal scattering and disappearing speed that the wall body was deposited, thereby can make the temperature in the warmhouse booth maintain longer time, and then can adjust the temperature in the warmhouse booth effectively.
Description
Technical Field
The application relates to the technical field of greenhouse heat preservation, in particular to a greenhouse with fly ash-based heat storage building blocks.
Background
The traditional greenhouse usually adopts a rammed earth wall as a wall body, so that the heat storage and heat preservation characteristics of soil are utilized, the temperature in the greenhouse can not be reduced too much at night in winter, although the heat storage coefficient of the rammed earth wall is large, the heat stored in the earth wall is quickly dissipated, the temperature in the greenhouse can only be maintained for a period of time, and the effect of adjusting the temperature in the greenhouse is limited. In order to play a role in heat preservation and heat storage, a mode of increasing the thickness of a soil wall is generally adopted, so that a large amount of cultivated land occupied by the thick soil wall cannot be reused, and a large amount of resources such as soil are occupied. In addition, even if the thermal insulation of the solar greenhouse adopting the thick soil wall is still not ideal, especially the temperature in the greenhouse needs to be raised by additional heating at night, a coal stove is usually adopted when the outdoor power and the natural gas are inconvenient, the price of the natural gas and the electric heating is too high, the dissipation of the heat in the greenhouse is supplemented, thus a large amount of fuel and resources are consumed, and the agricultural cost is greatly increased; and the coal stove is adopted for heating, so that the pollution is serious, the national environmental protection industry policy is not met, and a large amount of coal resources are consumed.
In the prior art, a heat storage material is usually added in a wall body of a greenhouse to improve the heat storage capacity of the wall body, so that more heat is stored in the wall body, and the temperature in the greenhouse can be maintained for a longer time. However, in this way, the heat dissipation speed in the wall body with the heat storage material is also high, the problem that the heat stored in the wall body is dissipated quickly is not solved, when the temperature at night is low, the heat in the wall body is dissipated into the greenhouse to adjust the temperature in the greenhouse, and as the heat stored in the wall body is dissipated quickly, the heat stored in the wall body in the daytime is dissipated quickly, so that the temperature in the greenhouse can be maintained for a period of time, and the effect of keeping warm is difficult to play for a long time, and the effect of adjusting the temperature in the greenhouse is limited.
Disclosure of Invention
On the basis, the heat loss speed stored in the wall body of the greenhouse in the prior art is high, so that the temperature in the greenhouse can be maintained for a period of time, and the effect of heat preservation is difficult to play for a long time, and the effect of temperature regulation in the greenhouse is limited. The greenhouse with the fly ash-based heat storage building blocks solves the problem that the heat stored in the wall is fast to dissipate, so that the dissipation speed of the heat stored in the wall is reduced, the temperature in the greenhouse can be maintained for a long time, and the temperature in the greenhouse can be effectively adjusted.
The utility model provides a warmhouse booth with fly ash base heat accumulation building block, includes the wall body, the wall body is established by the building of fly ash base heat accumulation building block and is formed, fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, the phase transition heat-sink shell is located the outside of wall body, and towards warmhouse booth's sunny side, fly ash content is 50% to 90% in the heat accumulation layer, the phase transition heat-sink shell is made by phase change material.
Preferably, in the greenhouse with the fly ash-based heat storage blocks, the size of the fly ash-based heat storage blocks is more than or equal to 100cm × 50cm × 50cm.
Preferably, in the greenhouse with the fly ash-based heat storage block, the fly ash-based heat storage block is prepared by the following steps:
weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement and 20 to 30 parts of aggregate, and mixing and stirring to prepare a premix;
adding water into the premix and uniformly stirring to obtain a mixture A;
pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer;
arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B;
curing the semi-finished product B; the maintenance comprises the following steps:
placing the semi-finished product B under visible light and maintaining at normal temperature for 6 to 7 days, watering and soaking the semi-finished product B for 3 times in the period4 times, the water amount is 8kg/m3To 10kg/m3。
Preferably, in the greenhouse with the fly ash-based heat storage block, the maintaining step further includes:
and after the semi-finished product B is watered and soaked every time, uniformly spraying water on the surface of the semi-finished product B at intervals of 8-10 hours.
Preferably, in the greenhouse with the fly ash-based heat storage building block, the step of maintaining the semi-finished product B under visible light at normal temperature for 6 days to 7 days comprises:
and paving a red transparent substrate on the surface of the semi-finished product B, and placing the semi-finished product B under visible light for curing at normal temperature for 6 to 7 days.
Preferably, in the greenhouse with the fly ash-based heat storage building block, the step of weighing 65 parts to 75 parts of fly ash, 10 parts to 20 parts of cement and 20 parts to 30 parts of aggregate, and mixing and stirring to obtain the premix comprises the following steps:
weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement, 20 to 30 parts of aggregate and 1 to 3 parts of cellulose, and mixing and stirring to prepare the premix.
Preferably, in the greenhouse with the fly ash-based heat storage block, the step of providing the phase change heat absorption layer on the upper surface of the heat storage layer includes:
uniformly spreading fiber materials on the upper surface of the heat storage layer;
and manufacturing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer and the fiber material to form the phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 2 cm-8 cm, so as to obtain the semi-finished product B.
Preferably, in the greenhouse having the fly ash-based heat storage block, after the step of laying the phase change material slurry on the upper surface of the heat storage layer and the fiber material, and before the step of curing the semi-finished product B, the method includes:
and pressing the phase change heat absorption layer at a second preset pressure for 5-7 hours.
Preferably, in the greenhouse with the fly ash-based heat storage block, after the step of pressing and molding the mixture a under a first preset pressure, before the step of uniformly spreading a fiber material on the upper surface of the heat storage layer, the method further includes:
and grooves are formed in the upper surface of the heat storage layer, so that the upper surface is uneven.
Preferably, in the greenhouse with the fly ash-based heat storage building block, a heat insulation layer is arranged on one side of the wall body, which is away from the sunny side.
The technical scheme who this application adopted can reach following beneficial effect:
the embodiment of the application discloses a warmhouse booth with fly ash base heat accumulation building block, the wall body is established by the building of fly ash base heat accumulation building block and is formed, fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, the phase transition heat-sink shell is towards the sunny side of warmhouse booth, fly ash content is 50% to 90% in the heat accumulation layer, the phase transition heat-sink shell is made by phase change material, the phase transition heat-sink shell can enough initiatively absorb heat, in order to absorb more heat fast, and save in the heat accumulation layer, when the temperature descends in the warmhouse booth at night, heat in the heat accumulation layer releases in passing through the phase transition heat-sink shell to warmhouse booth, in order to slow down the thermal speed that scatters and disappears in the heat accumulation layer, in order to slow down the thermal scattered and disappear of wall body deposit, thereby can make the temperature maintenance longer time in the warmhouse booth, and then can adjust the temperature in the warmhouse booth effectively.
Drawings
Fig. 1 to fig. 3 are three-month temperature change graphs from 11 months, 18 days to 2 months, 28 days indoor and outdoor of the greenhouse disclosed in the embodiment of the application, wherein in each graph, each broken line sequentially comprises an indoor highest air temperature, an indoor lowest air temperature, an outdoor highest air temperature and an outdoor lowest air temperature from top to bottom on the basis of the starting position of each broken line.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiment of the application discloses warmhouse booth with fly ash base heat accumulation building block, including the wall body, the wall body is built by the building of fly ash base heat accumulation building block (also called heat accumulation building block hereinafter), and fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, and the phase transition heat-sink shell is located the outside of wall body, and towards the sunny side of warmhouse booth, and fly ash content is 50% to 90% in the heat accumulation layer, and the phase transition heat-sink shell is made by phase change material.
In specific working process, the phase change heat-absorbing layer can absorb heat rapidly when the sun shines to transmit the absorbed heat to the heat accumulation layer, with the deposit heat, when the temperature descends in the greenhouse at night, the heat in the heat accumulation layer is released in the greenhouse after passing through the phase change heat-absorbing layer, and the heat loss speed in the heat accumulation layer can be slowed down.
Here, the phase change heat absorption layer actively absorbs heat during solar irradiation in the daytime to rapidly absorb more heat, and the heat is stored in the heat storage layer to achieve the heat absorption effect. When the temperature descends in greenhouse at night, the heat in the heat accumulation layer needs to be released through the phase change heat-absorbing layer, so that the direct release of the heat in the heat accumulation layer is prevented, the heat can slow down the heat dissipation speed through the phase change heat-absorbing layer, the heat preservation effect can be played on the heat accumulation layer through the phase change heat-absorbing layer, and the heat dissipation speed in the heat accumulation layer is slowed down.
The embodiment of the application discloses a warmhouse booth with fly ash base heat accumulation building block, the wall body is established by the building of fly ash base heat accumulation building block and is formed, fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, the phase transition heat-sink shell is towards the sunny side of warmhouse booth, fly ash content is 50% to 90% in the heat accumulation layer, the phase transition heat-sink shell is made by phase change material, the phase transition heat-sink shell can enough initiatively absorb heat, in order to absorb more heat fast, and save in the heat accumulation layer, when the temperature descends in the warmhouse booth at night, heat in the heat accumulation layer releases in passing through the phase transition heat-sink shell to warmhouse booth, in order to slow down the thermal speed that scatters and disappears in the heat accumulation layer, in order to slow down the thermal scattered and disappear of wall body deposit, thereby can make the temperature maintenance longer time in the warmhouse booth, and then can adjust the temperature in the warmhouse booth effectively.
By combining the climate characteristic that the temperature is lower than the temperature in the same period of the year in Yinchuan region from 11 months to 2021 months in 2020, and simultaneously being the hardest period of the overwintering facility for cultivating melons and vegetables, in order to deeply research the temperature, lighting and other properties of the greenhouse with the fly ash-based heat storage building blocks, two sets of greenhouse environment detectors are installed in No. 9 greenhouse of Ningxia brocade silk road agricultural science and technology park by the agricultural technology popularization center of the Ministry of agriculture and Water administration in the joint Chongqing district from 11 months to 11 months in 2020, and the performance characteristics of the fly ash-based heat storage building blocks in heat preservation and the like are proved by measuring indexes such as the temperature of the greenhouse. The specific indexes are as follows:
1. the average wall heat conductivity coefficient is 0.05 w/(m)2K) heat storage coefficient of 4.75 w/(m) on average2K), not only has strong heat-insulating property, but also has good storage capacityThermal performance. The heat conductivity coefficient is small, so that the heat dissipation speed in the wall body can be reduced, the heat dissipation speed in the heat storage layer is reduced, and the problem that the heat stored in the wall body is fast in dissipation is solved.
2. Air temperature: data were collected over a 3 month period from 11 months 18 days to 2 months 28 days. The indoor average temperature of the greenhouse with the fly ash-based heat storage building blocks is 12.6 ℃, the highest temperature average value is 34.3 ℃, the lowest temperature average value is 8 ℃, the extreme low temperature value is maintained at 6 ℃, the average temperature is-3.3 ℃, the highest temperature average value is 4.5 ℃, the lowest temperature average value is-10.2 ℃, the extreme low temperature value is maintained at-25.2 ℃, the temperature is commonly below-15 ℃ from 12 months and 11 days to 1 month and 11 days in the coming year, the temperature is below-10 ℃ in 1 week from 1 month and 28 days to 2 months and 3 days, and the time when the external temperature reaches the lowest temperature below-20 is accumulated for about 1 week. Detailed data see fig. 1-3.
According to the monitoring data, the coal ash micro-foaming concrete technology, the outer wall heat insulation technology and the phase change energy storage technology are applied to the greenhouse with the coal ash based heat storage building blocks, the heat insulation effect of the greenhouse is improved, heat absorption and heat release at low temperature in the greenhouse are realized, the monitoring data shows that the minimum temperature in the greenhouse is stable, when the outdoor temperature is low, the indoor temperature is maintained through the release of heat in the wall and can be maintained for a long time, so that the minimum temperature in the greenhouse is stable, therefore, the release of heat in the wall is maintained stably, the heat in the wall is not released quickly, the heat in the wall is released slowly and is maintained for a long time, the slow release of heat in the wall is obtained, the problem that the heat stored in the wall is dissipated quickly is solved, the dissipation speed of the heat stored in the wall is slowed down, the temperature in the greenhouse is maintained for a long time, namely, the minimum temperature in the greenhouse is stable, the temperature in the greenhouse can be effectively adjusted, the temperature in the greenhouse can be maintained stably, and the temperature in the greenhouse can be maintained stably. In winter, the outdoor temperature is-25.2 ℃, the indoor extreme temperature can reach more than 7 ℃ and the temperature difference between the inside and the outside of the wall body reaches more than 18 ℃ in continuous cloudy days. Is suitable for annual fruit and vegetable production in northern areas.
In order to avoid heat loss from the side of the heat storage layer facing away from the sunny side, the wall body may optionally be provided with a heat insulation layer on the side facing away from the sunny side. The insulating layer can completely cut off the heat exchange between one side that the heat accumulation layer deviates from the sunny side and the external environment to can avoid the heat in the heat accumulation layer to scatter and disappear from the one side that deviates from the sunny side, so that the heat of storage in the heat accumulation layer can be through in releasing to required environment to the sunny side, further improve the thermal insulation performance of heat accumulation building block.
As described above, in order to increase the construction speed of the wall, the size of the fly ash-based heat storage block is optionally greater than or equal to 100cm × 50cm × 50cm, so as to increase the size of the fly ash-based heat storage block, quickly complete the construction of the wall, and increase the construction speed of the wall.
When the size of the fly ash-based heat storage building block is larger and the content of the fly ash exceeds 50%, the strength of the fly ash-based heat storage building block is reduced, and in the process of building and stacking walls, the building block at the bottom layer has poor bearing capacity and is easy to damage, so that the stability of the wall body is influenced. Based on this, in an alternative embodiment, the fly ash-based heat storage block may be made by the steps of:
weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement and 20 to 30 parts of aggregate, and mixing and stirring to prepare a premix;
adding water into the premix, and uniformly stirring to obtain a mixture A;
firstly, uniformly mixing raw materials such as fly ash, cement, aggregate and the like, then adding water and stirring to obtain a mixture A, adding a small amount of water continuously, continuously stirring the premix, stopping adding water when the mixture is flocculent, and continuously stirring for 10 to 15 minutes to obtain the mixture A, wherein the mixture A is flocculent.
Pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer;
arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B;
curing the semi-finished product B; the curing comprises the following steps:
curing the semi-finished product B under visible light at normal temperature for 6-7 days, watering and soaking the semi-finished product B for 3-4 times, wherein the water amount for each time is 8kg/m3To 10kg/m3And obtaining the high-strength fly ash-based heat storage building block. Each watering soaking can last 30 minutes to 50 minutes, and the watering amount and the soaking time of the first watering soaking can be smaller. Specifically, the semi-finished product B can be placed under outdoor sunlight in the daytime and under light at night.
This embodiment is mainly improved the limit to mixture A's composition and semi-manufactured goods B's maintenance method, can be when improving fly ash content in the heat storage building block, increase heat storage building block's intensity, and heat storage building block's size is great, piling up the in-process at the wall, the heat storage building block bearing capacity of bottom is better, prevents that it is easy damaged, stability to improve the wall body, and the heat storage building block that the size is great can accomplish the task of building the wall fast, be favorable to improving the speed of building the wall.
Preferably, the curing step may further include: after the semi-finished product B is watered and soaked every time, water is uniformly sprayed on the surface of the semi-finished product B every 8 to 10 hours. After maintenance that water is uniformly sprayed on the surface of the semi-finished product B, the surface of the heat storage building block can be smooth, cracks can be prevented from appearing on the surface of the heat storage building block, and the surface is rough, so that the appearance of the heat storage building block is high.
As mentioned above, the step of subjecting the semi-finished product B to the visible light for 6 days to 7 days, and in a preferred embodiment, the step of subjecting the semi-finished product B to the visible light for 6 days to 7 days may include: and (5) placing the semi-finished product B under visible red light and curing at normal temperature for 6 to 7 days. Compared with normal-temperature curing under visible light, the normal-temperature curing of the semi-finished product B under red light can obviously improve the strength of the heat storage building block, further improve the strength of the heat storage building block and prevent damage in the wall building accumulation process.
Specifically, the step of curing the semi-finished product B under visible red light at normal temperature for 6 days to 7 days may include: and paving a red transparent substrate on the surface of the semi-finished product B, and curing for 6-7 days at normal temperature under visible light. Under the filtering action of the red transparent substrate, when visible light irradiates the red transparent substrate, the red light in the visible light penetrates through the red transparent substrate and irradiates the surface of the semi-finished product B, and the step of normal-temperature maintenance of the semi-finished product B under the visible red light is completed.
Preferably, the water content in the mixture A can be 20% to 30%, so that the flocculent mixture A can be obtained conveniently, the problem that the flocculent mixture A cannot be obtained due to too high or too low water content is avoided, and the forming and the quality of the heat storage layer are not influenced.
Preferably, the aggregate can comprise construction waste, the particle size of the construction waste is less than or equal to 2mm, the construction waste is used as the aggregate in the heat storage building block, and the solid waste is fully utilized, so that the content of the solid waste in the heat storage building block is higher, the utilization rate of the solid waste is improved, the heat storage building block is environment-friendly and economical, and the economic benefit is higher.
As described above, the mixture a is press-molded at the first predetermined pressure to obtain the heat storage layer, and specifically, the first predetermined pressure may be 10MPa to 15MPa. Under the predetermined pressure, the mixture A can be compacted and formed into the heat storage layer without affecting the heat storage performance of the heat storage layer.
In order to further improve the strength of the heat storage building block, optionally, the step of weighing 65 parts to 75 parts of fly ash, 10 parts to 20 parts of cement and 20 parts to 30 parts of aggregate, and mixing and stirring to prepare the premix may include: weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement, 20 to 30 parts of aggregate and 1 to 3 parts of cellulose, and mixing and stirring to prepare the premix. In this embodiment, the addition of cellulose enables the cellulose to serve as an adhesive bond in the mixture a, thereby further improving the strength of the thermal storage block. Specifically, the cellulose may have a length of 10 to 20 cm.
Preferably, the cellulose can be at least one of crushed wheat straw, crushed rice straw, crushed corn straw, crushed sorghum straw and glass fiber, the cost of the crushed wheat straw, crushed rice straw, crushed corn straw, crushed sorghum straw and glass fiber is low, the cost of the heat storage building block can be effectively reduced, and the crushed wheat straw, crushed rice straw, crushed corn straw, crushed sorghum straw and glass fiber have a strong bonding and connecting effect in the mixture A.
In the using process, the phase change heat absorption layer of the fly ash-based heat storage building block is easy to fall off from the heat storage layer, and the binding property between the heat absorption layer and the heat storage building block is poor. In an alternative embodiment, the step of disposing a phase-change heat absorption layer on the upper surface of the heat storage layer may include: evenly spread the fiber material at the upper surface on heat accumulation layer, spread the fiber material who spills need not too much, can play the adhesion can, avoid isolated heat accumulation layer of fiber material and phase change material thick liquids. Preferably, the spread fiber material may be formed in a mesh shape. The fiber material may be resin fiber, glass fiber, or the like.
And manufacturing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer and the fiber material to form a phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 2 cm-8 cm, so as to obtain a semi-finished product B. It should be noted that: the heat accumulation layer is placed on the ground, and the surface of one side of the heat accumulation layer, which deviates from the ground, is the upper surface of the heat accumulation layer. After the phase-change material slurry is laid on the upper surface of the heat storage layer and the fiber material, the phase-change material slurry is in fusion connection with the upper surface of the heat storage layer and the fiber material through self weight, and the fiber material, the phase-change material slurry, the heat storage layer and the fiber material are in fusion connection, so that the bonding strength is improved. The thickness of the phase change heat absorption layer is specifically determined according to the volume of the heat storage building block, when the volume of the heat storage building block is large, the thickness of the phase change heat absorption layer can be set to be large, and when the volume of the heat storage building block is small, the thickness of the phase change heat absorption layer can be set to be small.
The fiber material is evenly spread to the upper surface on heat accumulation layer in this embodiment, then lays the phase change material thick liquids on the upper surface and the fiber material on heat accumulation layer, and the phase change material thick liquids fuse through the upper surface and the fiber material fusion connection on dead weight and heat accumulation layer, and fiber material, three realize fusing the connection. Phase change material thick liquids can form the phase transition heat-sink shell, can set up the phase transition heat-sink shell by the phase change material preparation on the heat accumulation building block, so that the heat accumulation building block can enough realize the heat accumulation function, also can initiatively absorb heat, improve the heat absorbing capacity of heat accumulation building block, and simultaneously, fiber material can connect heat accumulation layer and phase transition heat-sink shell by the ten thousand threads of ten thousand ways, thereby improve the bonding strength on phase transition heat-sink shell and heat accumulation layer, avoid the phase transition heat-sink shell to drop from the heat accumulation layer, thereby improve the associativity on phase transition heat-sink shell and heat accumulation layer.
In order to further improve the bonding strength between the phase-change heat absorption layer and the heat storage layer, in an alternative embodiment, after the step of spreading the phase-change material slurry on the upper surface of the heat storage layer and the fiber material, before the step of curing the semi-finished product B, the method may include: and pressing the phase change heat absorption layer at a second preset pressure for 5-7 hours. Through extrusion phase change material thick liquids and heat accumulation layer to make both can the interpenetration, thereby can combine better, further improve the bonding strength on phase change heat-absorbing layer and heat accumulation layer. The first predetermined pressure may be 10MPa to 15MPa.
Alternatively, after the step of pressing the mixture a at the first preset pressure to form the fiber material, before the step of uniformly spreading the fiber material on the upper surface of the heat storage layer, the method may further include: the grooves are formed in the upper surface of the heat storage layer, so that the upper surface is uneven, the bonding surface of the phase-change material slurry and the heat storage layer can be increased by the uneven upper surface, the bonding surface of the phase-change material slurry and the heat storage layer is large, and the bonding strength of the phase-change heat absorption layer and the heat storage layer can be further improved.
As described above, the fiber material may be resin fiber or glass fiber, and optionally, the fiber material may also be at least one of crushed wheat straw, crushed rice straw, crushed corn straw and crushed sorghum straw. The cost of the crushed wheat straw, crushed rice straw, crushed corn straw, crushed sorghum straw and glass fiber is low, and the manufacturing cost of the heat storage building block can be effectively reduced.
Preferably, the step of making the phase change material slurry may include: and (3) taking the phase-change material powder, adding water, and stirring to be pasty to obtain phase-change material slurry, wherein the water content in the phase-change material slurry is 8-18%. Through the water content in the restriction phase change material thick liquids, prevent that the water content in the phase change material thick liquids is too high, lead to the phase change material thick liquids to be rare form, prevent that the water content in the phase change material thick liquids from crossing low excessively, lead to the phase change material thick liquids to be flocculent to be convenient for lay the phase change material thick liquids on the upper surface and the fiber material of heat accumulation layer, in order to conveniently set up the phase change heat-sink shell. The phase-change material powder can be FTC self-control phase-change energy-saving material, and the application does not limit the material.
The technical solutions and technical effects of the present application are further described below by specific comparative experimental examples, which are only for further explaining the present application and do not limit the technical solutions of the present application.
The following comparative experiments were set up:
comparative example 1: weighing 70 parts of fly ash and 30 parts of cement, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; and then placing the semi-finished product B in a normal-temperature and normal-humidity environment under visible light for curing for 6 days to obtain the heat storage building block.
Comparative example 2: weighing 70 parts of fly ash, 20 parts of cement and 10 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; and then placing the semi-finished product B in a normal-temperature and normal-humidity environment under visible light for curing for 6 days to obtain the heat storage building block.
Comparative example 3: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; and then placing the semi-finished product B in a normal-temperature and normal-humidity environment under visible light for curing for 6 days to obtain the heat storage building block.
And detecting the strength of the heat storage block, namely detecting the strength of the heat storage layer.
The results of the comparative experiments are given in the following table:
| strength/MPa | |
| Comparative example 1 | 3.4 |
| Comparative example 2 | 4.1 |
| Comparative example 3 | 4.5 |
As can be seen from the data in the above table, the strength of the heat storage block in comparative example 3 is significantly higher than the strength of the heat storage blocks in comparative examples 1 and 2, which indicates that, in the improvement of the components of the heat storage block, the components and the proportional relationship in comparative example 3 can effectively improve the strength of the heat storage block by increasing the aggregate and adjusting the proportions of the fly ash, the cement and the aggregate.
The experiment was carried out using the components and their proportional relationship in comparative example 3, and the following experiment was set up:
experimental example 1: weighing 70 parts of fly ash, 10 parts of cement, 20 parts of aggregate and 3 parts of cellulose, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; and then placing the semi-finished product B in a normal-temperature and normal-humidity environment under visible light for curing for 6 days to obtain the heat storage building block.
Experimental example 2: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount for each time is 9kg/m3And obtaining the heat storage building block.
Experimental example 3: weighing 70 parts of fly ash, 10 parts of cement, 20 parts of aggregate and 3 parts of cellulose, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount is 9kg/m3And obtaining the heat storage building block.
The experimental results are given in the following table:
| strength/MPa | |
| Comparative example 3 | 4.5 |
| Experimental example 1 | 6.4 |
| Experimental example 2 | 8.3 |
| Experimental example 3 | 11.9 |
As can be seen from the above data, the strength of the thermal storage block in experimental example 1 is significantly higher than that of the thermal storage block in comparative example 3, thus indicating that the improvement of the composition of the thermal storage block can improve the strength of the thermal storage block by adding cellulose to the thermal storage block. The strength of the heat storage block in experimental example 2 was significantly higher than that of the heat storage block in comparative example 3, thus indicating that the strength of the heat storage block can be improved by adopting the above curing process in improvement of the curing process of the heat storage block. And compared with experimental example 1, the strength is improved better by improving the curing process alone than by adding cellulose in the heat storage building block alone.
Further, by combining experimental example 1 and experimental example 2 with example 3, it can be found that the strength of the heat storage block of example 3 is significantly higher than that of the heat storage blocks of experimental examples 1 and 2, and the strength is greatly improved, and it can be seen that the strength of the heat storage block can be greatly improved by adding cellulose to the heat storage block and adopting the above-mentioned curing process.
In the course of conducting experimental example 2, it was occasionally found that a part of the area of the heat storage block was covered with red plastic, and the strength of the area was found to be higher than that of the other areas when the heat storage block was examined, based on which the following experimental examples were set for verification.
Experimental example 4: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible red light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount is 9kg/m3And obtaining the heat storage building block.
Experimental example 5: weighing 70 parts of fly ash, 10 parts of cement, 20 parts of aggregate and 3 parts of cellulose, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible red light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount is 9kg/m3And obtaining the heat storage building block.
The experimental results are given in the following table:
| strength/MPa | |
| Experimental example 2 | 8.3 |
| Experimental example 4 | 10.4 |
| Experimental example 3 | 11.9 |
| Experimental example 5 | 13.1 |
As can be seen from the data in the above table, the strength of the heat storage block in experimental example 4 is significantly higher than that of the heat storage block in experimental example 2, and the strength of the heat storage block in experimental example 5 is significantly higher than that of the heat storage block in experimental example 3, which indicates that the strength of the heat storage block can be improved even when the heat storage block is cured at room temperature under visible red light.
Experimental example 6: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible red light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount is 9kg/m3And after the semi-finished product B is watered and soaked every time, uniformly spraying water on the surface of the semi-finished product B every 9 hours to obtain the heat storage building block.
Experimental example 7: weighing 70 parts of fly ash, 10 parts of cement, 20 parts of aggregate and 3 parts of cellulose, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B, wherein the size of the semi-finished product B is 100cm multiplied by 50cm; curing the semi-finished product B under visible red light at normal temperature for 6 days, watering and soaking the semi-finished product B for 3 times, wherein the water amount is 9kg/m3And after the semi-finished product B is watered and soaked every time, uniformly spraying water on the surface of the semi-finished product B every 9 hours to obtain the heat storage building block.
The results of the experiment are as follows:
as can be seen from the above-mentioned experimental results, the strength of the heat storage block in experimental example 6 was higher than that of the heat storage block in experimental example 4, and the strength of the heat storage block in experimental example 7 was higher than that of the heat storage block in experimental example 5, thereby showing that the strength of the heat storage block can be improved to some extent even if water is uniformly sprayed on the surface of the semi-finished product B during the curing process.
Simultaneously, at the in-process that the staff detected heat accumulation building block intensity, direct visual inspection is touched mode discovery such as with the hand: the smoothness of the surface of the heat storage block in experimental example 6 was higher than that of the heat storage block in experimental example 4, and the smoothness of the surface of the heat storage block in experimental example 7 was higher than that of the surface of the heat storage block in experimental example 5, which indicated that the surface of the heat storage block was smooth by uniformly spraying water to the surface of the semi-finished product B at intervals during the curing process, and the surface of the heat storage block was prevented from cracking and was rough, so that the appearance of the heat storage block was high.
Experimental example 8: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; manufacturing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer to form a phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; and curing the semi-finished product B to obtain the heat storage building block.
Experimental example 9: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; manufacturing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer to form a phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; pressing the phase change heat absorption layer at the pressure of 10MPa, and maintaining for 5 hours; and curing the semi-finished product B to obtain the heat storage building block.
Experimental example 10: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; uniformly spreading fiber materials on the upper surface of the heat storage layer; manufacturing phase change material slurry, and paving the phase change material slurry on the upper surface of the heat storage layer and the fiber material to form a phase change heat absorption layer, wherein the thickness of the phase change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; and curing the semi-finished product B to obtain the heat storage building block.
Experimental example 11: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; uniformly spreading fiber materials on the upper surface of the heat storage layer; manufacturing phase change material slurry, and paving the phase change material slurry on the upper surface of the heat storage layer and the fiber material to form a phase change heat absorption layer, wherein the thickness of the phase change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; pressing the phase change heat absorption layer at the pressure of 10MPa, and maintaining for 5 hours; and curing the semi-finished product B to obtain the heat storage building block.
Test mode 1: the heat storage building blocks obtained in experimental examples 8 to 11 are subjected to drop test, and whether the phase change heat absorption layer is separated from the heat storage layer or not and whether the phase change heat absorption layer is layered or not are observed;
test mode 2: firstly, fixing the heat storage building blocks obtained in experimental examples 8 to 11 on the ground through a heat storage layer, then clamping and hoisting the phase change heat absorption layer to pull upwards, recording the magnitude of the upward pulling force, stopping pulling upwards when the pulling force is greater than 6000N, maintaining, recording the maintaining time, and finishing the test when the maintaining time is greater than 10 minutes.
The experimental results are given in the following table:
as can be seen from the above experimental results, experimental examples 9 and 10 respectively compare with experimental example 8, it is found that the bonding strength between the phase change heat absorbing layer and the heat storage layer can be improved by pressing the phase change heat absorbing layer and increasing the fiber material, and compared between experimental example 9 and experimental example 10, it is found that the effect of increasing the bonding strength by the fiber material is significantly higher than the effect of pressing the phase change heat absorbing layer to improve the bonding strength, and particularly, the scheme as in experimental example 11 can be adopted to improve the bonding strength between the phase change heat absorbing layer and the heat storage layer more optimally.
Experimental example 12: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix and stirring uniformly to obtain a mixture A; pressing and molding the mixture A under a first preset pressure to obtain a heat storage layer; uniformly spreading crushed wheat straw on the upper surface of the heat storage layer; preparing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer and the crushed wheat straw to form a phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; and curing the semi-finished product B to obtain the heat storage building block.
Experimental example 13: weighing 70 parts of fly ash, 10 parts of cement and 20 parts of aggregate, and mixing and stirring to prepare a premix; adding water into the premix, and uniformly stirring to obtain a mixture A; pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer; glass fibers are uniformly spread on the upper surface of the heat storage layer; manufacturing phase change material slurry, and paving the phase change material slurry on the upper surface of the heat storage layer and the glass fiber to form a phase change heat absorption layer, wherein the thickness of the phase change heat absorption layer is 5cm, so as to obtain a semi-finished product B, and the size of the semi-finished product B is 100cm multiplied by 50cm; and curing the semi-finished product B to obtain the heat storage building block.
The experimental results are given in the following table:
as can be seen from the above experimental results, the effect of spreading the glass fiber on the bonding strength is slightly higher than the effect of spreading the pulverized wheat straw on the bonding strength.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. The utility model provides a warmhouse booth with fly ash base heat accumulation building block, its characterized in that includes the wall body, the wall body is established by the building of fly ash base heat accumulation building block and is formed, fly ash base heat accumulation building block includes phase transition heat-sink shell and heat accumulation layer, the phase transition heat-sink shell is located the outside of wall body, and the orientation warmhouse booth's sunny side, fly ash content is 50% to 90% in the heat accumulation layer, the phase transition heat-sink shell is made by phase change material.
2. The greenhouse with the fly ash-based heat storage blocks as claimed in claim 1, wherein the size of the fly ash-based heat storage blocks is more than or equal to 100cm x 50cm.
3. The greenhouse with the fly ash-based heat storage blocks as claimed in claim 2, wherein the fly ash-based heat storage blocks are made by the following steps:
weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement and 20 to 30 parts of aggregate, and mixing and stirring to prepare a premix;
adding water into the premix, and uniformly stirring to obtain a mixture A;
pressing and forming the mixture A under a first preset pressure to obtain a heat storage layer;
arranging a phase change heat absorption layer on the upper surface of the heat storage layer to obtain a semi-finished product B;
curing the semi-finished product B; the maintenance comprises the following steps:
placing the semi-finished product B under visible light and maintaining at normal temperature for 6 to 7 daysWatering and soaking the semi-finished product B for 3 to 4 times, wherein the watering amount is 8kg/m3To 10kg/m3。
4. The greenhouse with the fly ash-based heat storage building block as claimed in claim 3, wherein the curing step further comprises:
and after the semi-finished product B is watered and soaked every time, uniformly spraying water on the surface of the semi-finished product B at intervals of 8-10 hours.
5. The greenhouse with the fly ash-based heat storage building block as claimed in claim 3, wherein the step of curing the semi-finished product B under visible light at normal temperature for 6 days to 7 days comprises:
and paving a red transparent substrate on the surface of the semi-finished product B, and placing the semi-finished product B under visible light for curing at normal temperature for 6 to 7 days.
6. The greenhouse with the fly ash-based heat storage building block as claimed in claim 3, wherein the step of weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement and 20 to 30 parts of aggregate, and mixing and stirring to prepare the premix comprises:
weighing 65 to 75 parts of fly ash, 10 to 20 parts of cement, 20 to 30 parts of aggregate and 1 to 3 parts of cellulose, and mixing and stirring to prepare the premix.
7. The greenhouse with the fly ash-based heat storage building block as claimed in claim 3, wherein the step of providing the phase-change heat absorption layer on the upper surface of the heat storage layer comprises:
uniformly spreading fiber materials on the upper surface of the heat storage layer;
and manufacturing phase-change material slurry, and paving the phase-change material slurry on the upper surface of the heat storage layer and the fiber material to form the phase-change heat absorption layer, wherein the thickness of the phase-change heat absorption layer is 2 cm-8 cm, so as to obtain the semi-finished product B.
8. The greenhouse with the fly ash-based heat storage blocks as claimed in claim 7, wherein after the step of laying the phase change material slurry on the upper surface of the heat storage layer and the fiber material, and before the step of curing the semi-finished product B, the method comprises:
and pressing the phase change heat absorption layer at a second preset pressure for 5-7 hours.
9. The greenhouse with fly ash-based heat storage blocks as claimed in claim 7, further comprising, after the step of pressing and molding the mixture A under a first predetermined pressure, before the step of uniformly spreading the fiber material on the upper surface of the heat storage layer:
and grooves are formed in the upper surface of the heat storage layer, so that the upper surface is uneven.
10. The greenhouse with the fly ash-based heat storage blocks as claimed in claim 1, wherein a side of the wall body facing away from the sunny side is provided with a heat insulation layer.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342053A (en) * | 2000-05-31 | 2001-12-11 | Mitsubishi Heavy Ind Ltd | Fly ash-containing autoclave cured molding and method for manufacture thereof |
| CN104909700A (en) * | 2015-06-03 | 2015-09-16 | 亿利资源集团有限公司 | Heat storage wall material |
| CN204753954U (en) * | 2015-06-10 | 2015-11-11 | 山东农业大学 | Phase -change thermal type straw concrete block |
| CN106702842A (en) * | 2017-01-03 | 2017-05-24 | 鹰牌陶瓷实业（河源）有限公司 | Non-delamination and non-burning water permeable brick and preparation method thereof |
| CN109220395A (en) * | 2018-10-10 | 2019-01-18 | 中国农业科学院农业环境与可持续发展研究所 | A kind of agricultural greenhouse for releasing energy material containing phase-change accumulation energy |
| CN109296105A (en) * | 2018-09-14 | 2019-02-01 | 南昌大学 | A kind of lattice heat-preserving wall and production method based on phase-change material |
| DE202022100809U1 (en) * | 2022-02-11 | 2022-03-03 | Chung How Paint Factory Co., Ltd. | Heat insulating structure of a wall |
| CN115010411A (en) * | 2022-05-05 | 2022-09-06 | 宁夏洁境科技有限公司 | Heat storage building block and preparation method and application thereof |
| CN115028392A (en) * | 2022-05-05 | 2022-09-09 | 宁夏洁境科技有限公司 | High-strength fly ash-based heat storage building block and preparation method thereof |
| CN217850426U (en) * | 2022-04-18 | 2022-11-22 | 宁夏洁境科技有限公司 | Greenhouse assembled by heat storage building blocks |
-
2022
- 2022-05-05 CN CN202210483463.2A patent/CN115250797A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342053A (en) * | 2000-05-31 | 2001-12-11 | Mitsubishi Heavy Ind Ltd | Fly ash-containing autoclave cured molding and method for manufacture thereof |
| CN104909700A (en) * | 2015-06-03 | 2015-09-16 | 亿利资源集团有限公司 | Heat storage wall material |
| CN204753954U (en) * | 2015-06-10 | 2015-11-11 | 山东农业大学 | Phase -change thermal type straw concrete block |
| CN106702842A (en) * | 2017-01-03 | 2017-05-24 | 鹰牌陶瓷实业（河源）有限公司 | Non-delamination and non-burning water permeable brick and preparation method thereof |
| CN109296105A (en) * | 2018-09-14 | 2019-02-01 | 南昌大学 | A kind of lattice heat-preserving wall and production method based on phase-change material |
| CN109220395A (en) * | 2018-10-10 | 2019-01-18 | 中国农业科学院农业环境与可持续发展研究所 | A kind of agricultural greenhouse for releasing energy material containing phase-change accumulation energy |
| DE202022100809U1 (en) * | 2022-02-11 | 2022-03-03 | Chung How Paint Factory Co., Ltd. | Heat insulating structure of a wall |
| CN217850426U (en) * | 2022-04-18 | 2022-11-22 | 宁夏洁境科技有限公司 | Greenhouse assembled by heat storage building blocks |
| CN115010411A (en) * | 2022-05-05 | 2022-09-06 | 宁夏洁境科技有限公司 | Heat storage building block and preparation method and application thereof |
| CN115028392A (en) * | 2022-05-05 | 2022-09-09 | 宁夏洁境科技有限公司 | High-strength fly ash-based heat storage building block and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘崇杰: "混凝土制品工艺学", 31 January 1985, 山东科学技术出版社, pages: 190 - 142 * |
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