CN212833600U - Phase-change heat storage concrete structure in severe cold area - Google Patents
Phase-change heat storage concrete structure in severe cold area Download PDFInfo
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- CN212833600U CN212833600U CN201922470201.9U CN201922470201U CN212833600U CN 212833600 U CN212833600 U CN 212833600U CN 201922470201 U CN201922470201 U CN 201922470201U CN 212833600 U CN212833600 U CN 212833600U
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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
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Abstract
The utility model particularly relates to a severe cold district phase transition heat storage concrete structure. The structure comprises a phase-change material wrapper (12), a thermal coil (11), reinforced concrete (13) and a temperature sensor; the phase-change heat storage material is hermetically packaged in the phase-change material packaging device (12), and the phase-change material packaging devices (12) are arrayed in the foundation pit; the heat coil (11) is coiled around the phase change material wrapper (12) in a spiral and/or winding way; one end of the hot coil pipe (11) is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with the water separator; the heat coil pipe (11) is filled with a heat medium; the temperature sensor is arranged between the thermal coil (11) and the phase-change material wrapper (12); and the hot coil pipe (11) and the phase change material packaging device (12) are poured with reinforced concrete (13). The utility model has the advantages that: (1) the structure is stable. (2) The phase-change heat storage material has the functions of slow storage and slow release. (3) The structural strength is controllable. (4) The device is suitable for heat storage and heating of the reactor of the public dry toilet septic tank. (5) The application range is wide.
Description
Technical Field
The utility model relates to a building energy supply, energy-conserving technical field, concretely relates to severe cold district phase transition heat storage concrete structure.
Background
The environmental conditions of the severe cold farming and pasturing areas in the plateau are special, the annual average temperature is close to or lower than 0 ℃, the slow heating period is as long as 6-10 months, and in addition, the population of the severe cold farming and pasturing areas in the plateau is rare, the matching difficulty of water, electric and thermal facilities is high, and the cost is high. Therefore, the phase-change heat storage material has high economic and social values as a building material or an auxiliary material.
The phase change heat storage building structure that prior art provided is complicated, and construction and maintenance are complicated, are difficult to promote in plateau severe cold farming-pasturing area.
In addition, the excrement and urine of the traditional public dry latrine are frozen, the environmental temperature required by the microbial metabolism of the excrement cannot be kept, and the microbial metabolism approaches to the rest. The most significant influence of the harmless weather ecological power factors (mainly air temperature) of the excrement causes that the key and effective anaerobic digestion in the harmless treatment is difficult to realize. After entering a non-heating period, the heating, digestion, decomposition and harmless treatment cannot be carried out in time, and pathogens and infectious diseases carried by people in different regions are easy to spread, so that the hidden health trouble is caused.
The population of the severe cold farming and pasturing areas in the plateau is rare, the matching difficulty of water, electricity and heat facilities is high, the cost is high, and the use of a dry toilet in a certain period is necessary. The temperature maintenance of the excrement in the heating period and the temperature rise, digestion and decomposition of the excrement in the non-heating period are key problems faced by the public dry latrine in the cold region, and if the key problems are properly solved, the application of the public dry latrine in the severe cold region has feasibility. .
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing a phase transition heat storage concrete structure that phase transition temperature is fit for, material phase transition latent heat is higher, slowly store up slow-release function and outstanding stability, accessibility, economic nature, maneuverability.
In order to achieve the above object, the utility model adopts the following technical scheme:
a phase change heat storage concrete structure in a severe cold area comprises a phase change material wrapper 12, a hot coil pipe 11, reinforced concrete 13 and a temperature sensor;
the phase-change heat storage material is hermetically packaged in the phase-change material packaging device 12, and the phase-change material packaging devices 12 are arrayed in a foundation pit;
the heat coil 11 is coiled around the phase change material wrapper 12 in a spiral and/or winding manner; one end of the hot coil pipe 11 is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with a water separator; the heating coil 11 is filled with heating medium;
the temperature sensor is arranged between the thermal coil 11 and the phase-change material wrapper 12;
the thermal coil 11 and the phase change material encapsulator 12 are cast with reinforced concrete 13.
Further, the concrete structure is arranged below the maximum frozen soil depth.
Further, a phase change material is encapsulated in the phase change material encapsulator 12; the phase change energy storage material comprises 47.89 wt% of purified water, 50.11 wt% of anhydrous calcium chloride, 1 wt% of nucleating agent borax and 1 wt% of thickener carboxymethylcellulose sodium.
Further, a porous supporting material is also arranged in the phase change material wrapper 12; the porous support material is expanded perlite particles.
Further, the phase-change material packaging device 12 is a PVC pipeline and/or a plastic barrel with a cover, and the end part of the PVC pipeline is sealed by the same material and glue.
Further, the thermal coil 11 is a PR-PE pipe.
Furthermore, the phase change temperature of the phase change energy storage material is 20-30 ℃, and the phase change latent heat is more than or equal to 100 kJ/kg.
Furthermore, the concrete structure is used as a building foundation cushion, a building wall or other structures for storing and releasing heat in the weather period and day and night.
Furthermore, the concrete structure is buried in the lower parts of the first septic tank reactor chamber and the second septic tank reactor chamber, so that the microbial activity of excrement can be kept from freezing in winter, and the excrement can be cleaned and used after being heated, decomposed and harmlessly in spring, summer and autumn.
The utility model provides a preparation packaging method of phase change energy storage material in severe cold district phase change heat storage concrete structure includes following step: s1, heating purified water to 40-50 ℃ according to the formula, slowly adding anhydrous calcium chloride, and stirring until the anhydrous calcium chloride is completely dissolved; s2, weighing borax according to a formula, slowly adding the borax into the solution obtained in the step S1, and stirring until the borax is completely dissolved; s3 weighing sodium carboxymethylcellulose according to the formula, slowly scattering into the mixed solution obtained in S2, and stirring until the sodium carboxymethylcellulose is completely dissolved to obtain a pasty glue solution; s4, slowly adding expanded perlite particles into the pasty glue solution at 40-50 ℃, and continuously stirring until the phase-change heat storage material is fully fused into pores of the expanded perlite particles; s5, packaging the mixture prepared in the step S4 into a PVC pipe or a plastic barrel with a sealed bottom, and sealing.
The utility model provides a severe cold district phase transition heat storage concrete structure, phase transition heat storage material belong to inorganic hydrated salt composite, mainly by calcium chloride hexahydrate, nucleating agent, thickening agent etc. constitute, porous support (base member) material is expanded perlite granule, has hole and slow storage slow release function; the phase-change material packaging device is a PVC pipe barrel with good sealing and corrosion-resistant functions, and the hot coil pipe is a PR-PE pipe; the temperature sensor (explosion-proof) and the line pipe can realize the remote display control of the temperature; the reinforced concrete may be designed according to the building structure.
The utility model provides a phase change heat-retaining material is higher than the heat capacity, and the latent heat of phase change can be stabilized more than 100kJ kg, is about more than 25 times of the latent heat of phase change of water, and the dispersion is arranged, is slowly stored up the slowly-releasing, and volume fraction occupies lessly, and structural strength is controllable in concrete structure.
The phase-change heat storage material and the structural performance thereof are stable, the price is low, the on-site preparation is simple and safe, the heat inert and porous material is selected as the support (matrix) material, for example, the expanded perlite particles and the expanded perlite powder are mixed and stirred with the phase-change heat storage material according to a certain proportion to form the slow-storage slow-release phase-change heat storage material, the porosity is high, the inertia is strong, the elastoplasticity is good, and the slow storage and slow release are realized; the PVC pipe barrel is adopted for packaging, so that the packaging is stable and durable, the operation is convenient and fast, and the sealing performance is strong; the PR-PE heat coil pipe low-temperature heat medium is adopted for supplying heat, and the structural durability of the material is guaranteed when the temperature changes.
Under extreme weather of severe cold regions, the phase-change heat storage material and the structure thereof have the phenomenon of short supply and short demand of loads of buildings and structures and heat supply systems, the phase-change heat storage concrete structure is buried below the maximum frozen soil depth of a septic tank reactor, the scale and the load of the extreme weather collection and heat supply systems are obviously reduced by spanning the weather period, the day and night heat storage and peak regulation and slow heat release, and the heat supply safety is improved by utilizing the assistance of renewable energy sources.
The utility model provides a when severe cold district phase transition heat storage concrete structure is applied to public health lavatory, phase transition heat storage concrete structure buries underground in manure pit reactor one room (raw material collecting room), manure pit reactor two room (grog digestion room) lower part, can keep excrement and urine microbial activity not to freeze winter, and it is used to heat up to thoroughly decompose innoxious back clear drawing in spring, summer and autumn. The arrangement of the phase change heat storage concrete structure and the external heat insulation structure at the lower parts of the first septic tank reactor chamber and the second septic tank reactor chamber is determined by calculation according to the heat balance. The utility model provides a phase transition heat-retaining material phase transition temperature is in 20 ~ 30 ℃, is close the required suitable ambient temperature of microorganism anaerobic digestion, is applicable to the heat-retaining and the heat supply of public dry latrine pit reactor and heats.
The utility model provides a severe cold district phase transition heat storage concrete structure selects the phase transition heat-retaining material of 20 ~ 30 ℃ temperature range comfortable relatively such as human body, plant, microorganism, loads and pours wherein, and certain phase transition latent heat is stored to collection heat supply load when low, releases the phase transition latent heat under the extreme weather that surpasss the calculation temperature, and the optimal configuration collection heating system load, supplementary system collection heat supply defect not enough improves heat supply guarantee rate, stability.
On rigorous calculation, design experiment, preparation construction basis, the utility model provides a severe cold district phase transition heat storage concrete structure can stride the weather cycle and store up heat and release heat round the clock as building foundation bed course, building wall or other structures. Such as: the bottom of the septic tank reactor and the lower cushion layer store heat and supply heat to realize harmless excrement; the civil and public building floor heating system with heat supply condition in severe cold area; the greenhouse floor heating and wall heating in the severe cold area are realized; and so on.
Compared with the prior art, the utility model provides a severe cold district phase transition heat storage concrete structure's advantage:
(1) the structure is stable.
(2) The phase-change heat storage material has the functions of slow storage and slow release.
(3) The volume fraction of the phase-change heat storage material in a concrete structure occupies a small amount, and the structural strength is controllable.
(4) The device is suitable for heat storage and heating of the reactor of the public dry toilet septic tank.
(5) The application range is wide.
Drawings
Fig. 1 is an I-I sectional view of the phase change heat storage concrete structure in a severe cold area provided by the present invention.
Fig. 2 is a plan layout view of the thermal coil and the packaging device of the phase change heat storage concrete structure in the severe cold area.
FIG. 3 is a plan view of a septic tank reactor with a phase-change heat-storage concrete structure in a severe cold area when applied to a public toilet
In the figure, 1 is a wall body, 2 is a septic tank reactor first chamber, 3 is a septic tank reactor second chamber, 4 is a check well first, 5 is a check well second, 6 is a check well third, 7 is a feces passing opening, 8 is an inter-chamber flashboard, 9 is a water collector, 10 is a water separator, 11 is a thermal coil, 12 is a phase-change material packer, and 13 is reinforced concrete.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following embodiments are further described in detail, and the following embodiments are only used for illustrating the present invention, but not for limiting the scope of the present invention.
A phase change heat storage concrete structure in a severe cold area comprises a phase change material wrapper 12, a hot coil pipe 11, reinforced concrete 13 and a temperature sensor;
the phase-change heat storage material is hermetically packaged in the phase-change material packaging device 12, and the phase-change material packaging devices 12 are arrayed in a foundation pit;
the heat coil 11 is coiled around the phase change material wrapper 12 in a spiral and/or winding manner; one end of the hot coil pipe 11 is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with a water separator; the heating coil 11 is filled with heating medium;
the temperature sensor is arranged between the thermal coil 11 and the phase-change material wrapper 12;
the thermal coil 11 and the phase change material encapsulator 12 are cast with reinforced concrete 13.
Further, the concrete structure is arranged below the maximum frozen soil depth.
Further, a phase change material is encapsulated in the phase change material encapsulator 12; the phase change energy storage material comprises 47.89 wt% of purified water, 50.11 wt% of anhydrous calcium chloride, 1 wt% of nucleating agent borax and 1 wt% of thickener carboxymethylcellulose sodium.
Further, a porous supporting material is also arranged in the phase change material wrapper 12; the porous support material is expanded perlite particles.
Further, the phase-change material packaging device 12 is a PVC pipeline and/or a plastic barrel with a cover, and the end part of the PVC pipeline is sealed by the same material and glue.
Further, the thermal coil 11 is a PR-PE pipe.
Furthermore, the phase change temperature of the phase change energy storage material is 20-30 ℃, and the phase change latent heat is more than or equal to 100 kJ/kg.
Furthermore, the concrete structure is used as a building foundation cushion, a building wall or other structures for storing and releasing heat in the weather period and day and night.
Furthermore, the concrete structure is buried in the lower parts of the first septic tank reactor chamber and the second septic tank reactor chamber, so that the microbial activity of excrement can be kept from freezing in winter, and the excrement can be cleaned and used after being heated, decomposed and harmlessly in spring, summer and autumn.
The utility model also provides a preparation packaging method of the phase change energy storage material in the severe cold district phase change heat storage concrete structure.
The preparation and packaging method of the phase change energy storage material comprises the following steps:
s1, heating purified water to 40-50 ℃ according to the formula, slowly adding anhydrous calcium chloride, and stirring until the anhydrous calcium chloride is completely dissolved;
s2, weighing borax according to a formula, slowly adding the borax into the solution obtained in the step S1, and stirring until the borax is completely dissolved;
s3 weighing sodium carboxymethylcellulose according to the formula, slowly scattering into the mixed solution obtained in S2, and stirring until the sodium carboxymethylcellulose is completely dissolved to obtain a pasty glue solution;
s4, slowly adding expanded perlite particles into the pasty glue solution at 40-50 ℃, and continuously stirring until the phase-change heat storage material is fully fused into pores of the expanded perlite particles;
s5, packaging the mixture prepared in the step S4 into a PVC pipe or a plastic barrel with a sealed bottom, and sealing.
Example 1
Referring to fig. 1-2, a phase change heat storage concrete structure in a severe cold area comprises a phase change material packer 12, a thermal coil 11, reinforced concrete 13 and a temperature sensor; the phase-change heat storage material is hermetically packaged in the phase-change material packaging device 12, and the phase-change material packaging devices 12 are arrayed in a foundation pit; the heat coil 11 is coiled around the phase change material wrapper 12 in a spiral and/or winding manner; one end of the hot coil pipe 11 is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with a water separator; the heating coil 11 is filled with heating medium; the temperature sensor is arranged between the thermal coil 11 and the phase-change material wrapper 12; the thermal coil 11 and the phase change material encapsulator 12 are cast with reinforced concrete 13.
The concrete structure is arranged below the maximum frozen soil depth.
The phase change material packaging device 12 is internally packaged with a phase change energy storage material; the phase change energy storage material comprises 47.89 wt% of purified water, 50.11 wt% of anhydrous calcium chloride, 1 wt% of nucleating agent borax and 1 wt% of thickener carboxymethylcellulose sodium.
A porous supporting material is also arranged in the phase-change material wrapper 12; the porous support material is expanded perlite particles.
The phase-change material packaging device 12 is a PVC pipeline, and the end part of the PVC pipeline is plugged by the same material and glue.
The hot coil 11 is a PR-PE pipe.
The phase change temperature of the phase change energy storage material is 20-30 ℃, and the latent heat of phase change is 100 kJ/kg.
The concrete structure is used as a foundation cushion of a building.
Example 2
Referring to fig. 1 to 3, a phase change heat storage concrete structure in a severe cold area comprises a phase change material packer 12, a thermal coil 11, reinforced concrete 13 and a temperature sensor; the phase-change heat storage material is hermetically packaged in the phase-change material packaging device 12, and the phase-change material packaging devices 12 are arrayed in a foundation pit; the heat coil 11 is coiled around the phase change material wrapper 12 in a spiral and/or winding manner; one end of the hot coil pipe 11 is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with a water separator; the heating coil 11 is filled with heating medium; the temperature sensor is arranged between the thermal coil 11 and the phase-change material wrapper 12; the thermal coil 11 and the phase change material encapsulator 12 are cast with reinforced concrete 13.
The concrete structure is arranged below the maximum frozen soil depth.
The phase change material packaging device 12 is internally packaged with a phase change energy storage material; the phase change energy storage material comprises 47.89 wt% of purified water, 50.11 wt% of anhydrous calcium chloride, 1 wt% of nucleating agent borax and 1 wt% of thickener carboxymethylcellulose sodium.
A porous supporting material is also arranged in the phase-change material wrapper 12; the porous support material is expanded perlite particles.
The phase change material packaging device 12 is a plastic barrel with a cover.
The hot coil 11 is a PR-PE pipe.
The phase change temperature of the phase change energy storage material is 20-30 ℃, and the latent heat of phase change is 100 kJ/kg.
The concrete structure is buried at the lower parts of the first septic tank reactor chamber and the second septic tank reactor chamber, so that the microbial activity of excrement can be kept from freezing in winter, and the excrement can be cleaned and used after being heated, decomposed and harmlessly in spring, summer and autumn.
Example 3
The phase-change heat storage material comprises 47.89% of pure water, 50.11% of anhydrous calcium chloride and borax (Na) serving as a nucleating (inhibiting) agent2B4O7·10H2O)1 percent and thickener sodium carboxymethyl cellulose (CMC)1 percent. The porous support (matrix) material is expanded perlite particles. The packaging container is a PVC pipeline DN200, the end part of the packaging container is plugged by the same material, or a covered plastic barrel with a proper size. The heat transfer and temperature increasing medium comprises a PR-PE heat coil DN20, a filling heat medium, a water collecting and distributing device, a heat medium circulating pump and the like. The structural material is (reinforced) concrete, and the structural strength, the performance, the dimension and the like are determined according to the related design requirements.
Preparing a phase-change heat storage material: take 100 kg as an example. A200L blending barrel is taken, purified water 47.89kg is poured, and the mixture is heated to 45 ℃ in a water bath and kept. 50.11kg of anhydrous calcium chloride is slowly added and stirred until the calcium chloride is completely dissolved. Adding 1kg of borax powder slowly, and stirring uniformly until the borax powder is completely dissolved. Taking 1kg of sodium carboxymethylcellulose (CMC), continuously stirring, slowly and uniformly scattering into a mixing barrel, and preparing into pasty glue solution, namely the calcium chloride hexahydrate phase-change heat storage material after the CMC and the mixed solution are fully dissolved and fused.
Packaging and masonry pouring: slowly adding expanded perlite particles into the pasty glue solution, keeping the water bath temperature at 45 ℃, uniformly stirring until the phase-change heat storage material is fully fused into pores, taking a bottom-sealed PVC pipeline or a plastic barrel, filling, sealing, building and pouring according to a pre-designed array, laying a PR-PE hot coil pipe, burying a temperature sensor and a line pipe, and maintaining to form the slow-storage slow-release phase-change heat storage concrete structure.
The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to perform various changes to the technical solution of the present invention, and these simple changes all belong to the protection scope of the present invention.
It should be noted that the various technical features and steps described in the above embodiments can be combined in any suitable manner without contradiction, and the present invention does not need to describe any combination of the features and steps in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (9)
1. The utility model provides a severe cold district phase transition heat storage concrete structure which characterized in that: the structure comprises a phase-change material wrapper (12), a thermal coil (11), reinforced concrete (13) and a temperature sensor;
the phase-change heat storage material is hermetically packaged in the phase-change material packaging device (12), and the phase-change material packaging devices (12) are arrayed in the foundation pit;
the heat coil (11) is coiled around the phase change material wrapper (12) in a spiral and/or winding way; one end of the hot coil pipe (11) is connected with a water collector, the water collector is connected with a heat medium circulating pump, and the other end of the hot coil pipe is communicated with the water separator; the heat coil pipe (11) is filled with a heat medium;
the temperature sensor is arranged between the thermal coil (11) and the phase-change material wrapper (12);
and the hot coil pipe (11) and the phase change material packaging device (12) are poured with reinforced concrete (13).
2. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: the concrete structure is arranged below the maximum frozen soil depth.
3. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: the phase change material packaging device (12) is internally packaged with a phase change energy storage material.
4. The phase-change heat storage concrete structure for severe cold regions according to claim 3, wherein: the phase change temperature of the phase change energy storage material is 20-30 ℃, and the phase change latent heat is more than or equal to 100 kJ/kg.
5. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: a porous supporting material is also arranged in the phase-change material packaging device (12); the porous support material is expanded perlite particles.
6. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: the phase-change material packaging device (12) is a PVC pipeline and/or a plastic barrel with a cover, and the end part of the PVC pipeline is sealed by the same material and glue.
7. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: the hot coil (11) is a PR-PE pipe.
8. The phase-change heat storage concrete structure for severe cold regions according to claim 1, wherein: the concrete structure is used as a building foundation cushion or a building wall for storing and releasing heat in a weather cycle and day and night.
9. The phase-change heat storage concrete structure for severe cold regions according to any one of claims 1 to 8, wherein: the concrete structure is buried at the lower parts of the first septic tank reactor chamber and the second septic tank reactor chamber, so that the microbial activity of excrement can be kept from freezing in winter, and the excrement can be cleaned and used after being heated, decomposed and harmlessly in spring, summer and autumn.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111500263A (en) * | 2019-12-31 | 2020-08-07 | 天津市城市规划设计研究院 | Phase-change heat storage concrete structure in severe cold area |
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Address after: No. 4 and 8, Chengde Road, Heping District, Tianjin Patentee after: Tianjin urban planning and Design Institute Co.,Ltd. Address before: No.81, Huangpu South Road, Hexi District, Tianjin 300201 Patentee before: Tianjin urban planning and Design Institute Co.,Ltd. |