Magnetofluid external wall structure

A magnetic fluid, exterior wall technology, applied in the direction of walls, building components, building structures, etc., can solve the problems of not being able to form a systematic energy-saving design, not paying attention to energy reuse, and not achieving low consumption.

Pending Publication Date: 2020-06-05
SUZHOU UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) The accumulation of green and energy-saving building techniques after the architectural design is completed cannot form a systematic energy-saving design;
[0006] 3) Do not pay attention to the reuse of energy "waste heat", resulting in energy loss
The original intention of low energy consumption in "passive" buildings has not been achieved

Method used

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  • Magnetofluid external wall structure
  • Magnetofluid external wall structure
  • Magnetofluid external wall structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Preparation of magnetic fluid containing nanomaterials

[0028] 1) Weigh ferric oxide (Shanghai Chaowei Nano Technology Co., Ltd., 100 to 400nm), porous alumina powder (Shanghai Chaowei Nano Technology Co., Ltd., 500nm), floating beads (Shanghai Chaowei Nano Technology Co., Ltd., 500nm ) and added to deionized water to obtain a mixed solution. The mixed solution was magnetically stirred at a constant temperature of 50°C, and the constant temperature magnetic stirring speed was 1200r / min to form a reddish-brown solution. During the continuous constant temperature stirring process, acetic acid aqueous solution (mass fraction 10.4%) was added, and after mixing Adjust the pH value to 10-11, adjust the speed to 1200r / min and continue stirring for 30 minutes, then cool to room temperature naturally, remove the supernatant, and wash the precipitate with deionized water by centrifugation at a speed of 8000r / min, and wash by centrifugation for 10 minutes , then ultraso...

Embodiment 2

[0031] Embodiment 2 Magnetic Fluid Exterior Wall Structure

[0032] As shown in the figure, the magnetic fluid exterior wall structure is composed of several wall modules 1 that can be spliced. The wall module 1 is a cubic structure, the top of which is connected to the upper diversion pipe 4 through the upper fluid inlet and outlet 6, and the bottom is connected to the lower fluid inlet and outlet. 7 is connected to the lower diversion pipe 5, the rotatable rod 2 is vertically connected to the top and bottom of the wall module 1, and the magnet assembly 3 is arranged on the rotatable rod. Such as figure 2 and 3As shown, the magnet assembly 3 includes a first permanent magnet 31, a second permanent magnet 32 ​​and a magnetic fluid 33. There are several grooves 9 on the rotatable rod 2, and the grooves are spaced at 15-25 cm apart. The central axis is perpendicular to the rotatable rod, a first permanent magnet 31 is arranged in the groove, a second permanent magnet 32 ​​is ...

Embodiment 3

[0034] Example 3 Principles of use in summer working conditions;

[0035] In summer, the distance between the first permanent magnet 31 and the second permanent magnet 32 ​​is controlled at 1 cm so that the magnetic field generated by the permanent magnet is close to the magnetic fluid. At this time, the magnetic field force is relatively large, and the magnetic field intensity is relatively high. Ferrofluid surrounds magnetic materials. The magnetic lines of force are relatively dense, forming dense sharp hills, which make them not match the wavelength of sunlight and improve the reflectivity of light and heat. At the same time, medium water 8 is inserted into the wall module 1 . When direct sunlight in summer, the sunlight passes through the medium water 8 to form a "primary reflection" to reflect most of the light. The remaining solar rays refracted by the medium water 8 are "secondarily reflected" by the magnetic fluid. The heat generated during the reflection process,...

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Abstract

The invention discloses a magnetofluid external wall structure composed of a plurality of wall modules which can be spliced. The wall modules are of a cube structure, and the top of each wall module is connected with an upper conduction pipeline through an upper fluid inlet and outlet; the bottom of each wall module is connected with a lower conduction pipeline through a lower fluid inlet and outlet, and rotatable rods are vertically connected with the top and bottom of each wall mould; and magnet assemblies are arranged on the rotatable rods. According to the magnetofluid external wall structure, the wall structure can reflect solar rays in summer greatly, and the wall is prevented from absorbing excessive heat; meanwhile, solar afterheat absorbed by the magnetofluid external wall structure can be converted into required energy for the interior of a building; and in summer, through replacement of functional materials dispersed in magnetofluid in the energy-saving wall, the solar heatis absorbed efficiently, and supplemented for the wall. Indoor heat loss is avoided, so that the purpose of keeping the interior of a room warm in summer is achieved.

Description

technical field [0001] The invention belongs to the technical field of green energy-saving building design and application of new materials, and in particular relates to a magnetic fluid exterior wall structure. Background technique [0002] With the continuous development of society, the problem of energy shortage is becoming more and more obvious. In recent years, "energy conservation and emission reduction" has been valued by all walks of life, and the government has also issued a number of legal documents, which regard energy conservation and emission reduction as a mandatory standard. In the field of architectural design, the first to propose the "energy saving and emission reduction" standard was the "green energy saving standard" in the United States - LEED (Leadership in Energy and Environmental Design), which is a tool for evaluating green buildings. The purpose is to effectively reduce the negative impact on the environment and residents in the design. The purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/74E04B2/00F24S20/66F24D15/00C09C1/24C09C3/06C09C3/04C09C3/08H01F41/02
CPCC09C1/24C09C3/006C09C3/041C09C3/043C09C3/06C09C3/063C09C3/08E04B1/74E04B2/00F24D15/00F24D2200/14F24S20/66H01F41/0253Y02B10/20Y02E10/40
Inventor 张雨清周晓锋
Owner SUZHOU UNIV OF SCI & TECH
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