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Building energy saving and heat preserving method and hollow block

A building energy-saving and thermal insulation technology, applied in building materials and other directions, can solve problems such as poor weather resistance and poor safety, and achieve the effects of improving thermal comfort, low cost, and obvious energy-saving and thermal insulation effects.

Inactive Publication Date: 2014-07-23
NANJING UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to invent a building energy saving and heat preservation method that can reduce building energy consumption and improve indoor thermal comfort in order to solve the problems of poor weather resistance and poor safety during use of the external heat preservation structure used in the current wall energy saving. A matching hollow block

Method used

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  • Building energy saving and heat preserving method and hollow block
  • Building energy saving and heat preserving method and hollow block
  • Building energy saving and heat preserving method and hollow block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like Figure 2-3 shown.

[0028] A building energy-saving heat preservation method, it comprises the following steps:

[0029] First, mix capric acid and gypsum powder in a mass ratio of capric acid: gypsum powder = 1:1-2;

[0030] Secondly, at normal temperature (not exceeding 30°C), put the mixed capric acid and gypsum powder into the mold to make a phase-change gypsum board 3 with a size of 20×140×190 (unit mm), and the specific size can be customized according to the needs Self-designed;

[0031] Third, use conventional methods to produce a top view such as figure 2 hollow concrete blocks as shown;

[0032] Fourth, put the phase change gypsum board 3 into figure 2 In the weight-reducing and heat-insulating hole 2 of the hollow concrete block shown on the outside of the wall, the two surfaces of the phase-change gypsum board are in close contact with the surface of the concrete hole wall to improve the heat conduction efficiency, as shown in figure 2 As show...

Embodiment 2

[0035] like image 3 shown.

[0036] An energy-saving hollow concrete block. The center of the concrete block 1 is provided with a number of weight-reducing and heat-insulating holes 2 along the height direction, and phase-change gypsum boards 3 are installed in at least a row of holes near the outside. The board 3 is made by mixing capric acid and gypsum, and the mass ratio of the two is capric acid: gypsum powder=1:1~2. The lower end of the life-reducing and heat-insulating hole 2 where the gypsum board 3 is installed is sealed with concrete to form a blind hole to prevent the phase-changed energy storage material from flowing out of the life-reducing and heat-insulating hole 2 . like figure 2 As shown, the size of the phase-change gypsum board can be length × width × height = 20 × 140 × 190, the unit is mm.

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Abstract

The invention discloses a building energy saving and heat preserving method and a hollow block. The method is characterized in that a phase-change gypsum board is additionally arranged in the surface of a building outer wall hollow concrete block toward the outside; in the daytime, the phase-change gypsum board is subjected to phase-change melting by absorbing the solar radiation energy and then adsorbs the latent heat to improve the thermal inertia of the wall, so that the traditional constant-property thermal insulation materials are replaced or partially replaced when the peak time of the indoor temperature wave is postponed, the heat insulating property of the wall is improved, the action of the external disturbance on the indoor thermal and humid environment is effectively retarded, the running time and the load of air conditioning equipment are decreased, the energy sources are effectively saved and the indoor thermal comfort of the buildings is improved; at night, the phase-change gypsum board releases heat outwards and the heat is changed from liquid to solid so as to realize regeneration. According to the building energy saving and heat preserving method and the hollow block, the structure is simple, the manufacturing is convenient and the energy-saving effect is good.

Description

technical field [0001] The invention relates to a building energy-saving technology, especially a technology that uses phase-change materials to absorb heat to realize building exterior wall heat insulation so as to reduce the radiation of external heat to the room to slow down the indoor temperature rise. Specifically, it is a building energy-saving heat preservation technology. Method and hollow block. Background technique [0002] At present, the energy-saving measures of building walls in my country are mainly external insulation. The insulation materials used have two shortcomings. First, their service life is not synchronized with that of buildings. The service life of buildings is required to be 70 years, while the service life of insulation materials is generally 5-10 years. Cause just need to replace insulation material regularly during the service life of building, will bring a lot of inconveniences thus. Second, some insulation materials used in the project cann...

Claims

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Application Information

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IPC IPC(8): E04C1/41
Inventor 张维维程建杰朱琴何嘉鹏
Owner NANJING UNIV OF TECH
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