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Method for preparing high-strength prefabricated cabin through integrated foaming

A prefabricated cabin, high-strength technology, applied in the field of substations, can solve the problems of difficult anti-corrosion treatment, poor fire resistance and thermal insulation performance, and poor environmental adaptability, and achieve the effects of superior stability, strong corrosion resistance, and strong surface adsorption.

Active Publication Date: 2017-11-07
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prefabricated cabin of the steel structure has the following defects: the size is large, the anti-corrosion treatment of the cabin is difficult and costly, which will affect its service life and poor environmental adaptability, and the fire resistance and heat preservation performance of this cabin is poor , easy to produce condensation, this kind of cabin will not be suitable for coastal, humid, extremely cold, extremely hot and other areas

Method used

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  • Method for preparing high-strength prefabricated cabin through integrated foaming

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A method for preparing a high-strength prefabricated cabin by integral foaming, comprising the steps of:

[0016] Step 1) Preparation of flame retardant resin: Weigh 90wt% phenol, 35wt% formaldehyde and 20wt% sodium hydroxide solution, the molar ratio of the three is 1:2:1, mix the sodium hydroxide solution and phenol Keep the temperature at 40°C for 20 minutes, then add formaldehyde, heat up to 80°C and keep it for 30 minutes; then add bisphenol A epoxy resin equivalent to 1% by weight of phenol, 0.2% polydimethylsiloxane alkanes, reflux at 90°C for 60 minutes, then mix evenly with red phosphorus in a weight ratio of 10:1, and cool down to room temperature to obtain;

[0017] Step 2) Preparation of blowing agent: CO 2 , N 2 And ethanol is added in the high-pressure mixer according to the mass ratio of 1:1:2, and the pressure is 20MPa, fully mixes, obtains;

[0018] Step 3) Weighing raw materials: Weighing each raw material according to parts by weight for later use:...

Embodiment 2

[0021] A method for preparing a high-strength prefabricated cabin by integral foaming, comprising the steps of:

[0022] Step 1) Preparation of flame retardant resin: Weigh 90wt% phenol, 35wt% formaldehyde and 20wt% sodium hydroxide solution, the molar ratio of the three is 1:2:1, mix the sodium hydroxide solution and phenol Keep the temperature at 40°C for 20 minutes, then add formaldehyde, heat up to 80°C and keep it for 30 minutes; then add bisphenol A epoxy resin equivalent to 1% by weight of phenol, 0.2% polydimethylsiloxane alkanes, reflux at 90°C for 60 minutes, then mix evenly with red phosphorus in a weight ratio of 10:1, and cool down to room temperature to obtain;

[0023] Step 2) Preparation of blowing agent: CO 2 , N 2 And ethanol is added in the high-pressure mixer according to the mass ratio of 1:1:2, and the pressure is 20MPa, fully mixes, obtains;

[0024] Step 3) Weighing raw materials: Weighing each raw material according to parts by weight for later use:...

Embodiment 3

[0027] The main technical indicators of the prefabricated cabin prepared by Example 1-2 of the present invention: see Table 1 for details:

[0028] Table 1

[0029]

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Abstract

The invention belongs to the technical field of transformer substations and discloses a method for preparing a high-strength prefabricated cabin through integrated foaming. The method comprises the following steps: (1) preparing flame-retardant resin; (2) preparing a forming agent; (3) weighing raw materials; and (4) carrying out foaming formation. By utilizing a foaming technique, the prepared prefabricated cabin is corrosion resistant and has good thermal insulation and fireproof effects.

Description

technical field [0001] The invention belongs to the technical field of substations, and in particular relates to a method for preparing a high-strength prefabricated cabin by integral foaming. Background technique [0002] The prefabricated cabin is the core product of the modular construction of the outdoor intelligent substation. The cabin is composed of secondary intelligent devices, HVAC, lighting, fire protection, security, image monitoring, internal environment control systems and other equipment. The factory completes production, installation and overall transportation, realizes factory processing and factory debugging. [0003] At present, the prefabricated cabins used in domestic substation pilot projects are mainly prefabricated cabins in the form of light steel structures. The steel structure prefabricated cabin is integrally welded with hot-rolled steel to form the cabin skeleton. Under the same stress conditions, the steel structure has a small cross-section an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08L23/12C08L79/08C08L91/06C08K13/04C08K7/26C08K3/22C08K3/02C08K7/14C08G8/28C08J9/12C08J9/14
CPCC08G8/28C08J9/122C08J9/127C08J9/142C08J2203/06C08J2203/12C08J2203/202C08J2205/052C08J2361/14C08J2423/12C08J2479/08C08J2491/06C08K2003/026C08K2003/222C08K2201/011C08L61/14C08L2201/02C08L2203/14C08L2205/035C08L23/12C08L79/08C08L91/06C08K13/04C08K7/26C08K3/22C08K3/02C08K7/14
Inventor 张记飞王奎鑫李增贺周仲强姜子健
Owner STATE GRID SHANDONG ELECTRIC POWER
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