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Low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials

A technology for solar water heaters and foaming raw materials, which is applied in the field of solar foaming, can solve the problems of poor thermal insulation effect, long foaming time, large foam density gradient, etc., and achieves simple and reasonable process design, improved thermal insulation effect, and fine and uniform cells. Effect

Active Publication Date: 2015-03-25
山东联创聚合物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vertical foaming foam has a large climbing height, resulting in a large foam density gradient, mostly fatigue foam at the top, and poor insulation effect; the increase in the amount of polyurethane increases the cost of the water tank insulation layer; It is beneficial to improve production efficiency; the foam has weak climbing ability in the vertical direction and high lateral pressure, which is easy to cause quality problems such as frying barrels and eccentric deformation, and the product qualification rate is reduced, which increases the cost of the enterprise; the foam quality at the nozzle is poor, which affects product insulation Effects and Appearances

Method used

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  • Low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials
  • Low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials
  • Low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The foaming raw materials used in the low-density solar water heater water tank polyurethane horizontal foaming process are composed of the following raw materials in parts by weight:

[0026]

[0027] According to the above ratio, each raw material is mixed for production, among which the polyether polyol is composed of 50 parts of YD-6205 polyether, 30 parts of 450M, 10 parts of polyether 635 of Hengfeng Polyurethane Industry Co., Ltd. and 10 parts of Changshu Yitong Polyurethane Products Co., Ltd. The company's YT-635S is composed of 6810c from Nanjing Kaisheng Polyurethane Auxiliary Co., Ltd. The composite catalyst uses 0.6 parts of dimethylcyclohexylamine and 0.6 parts of dimethylbenzylamine, and the foaming agent uses HCFC-141B.

Embodiment 2

[0029] The foaming raw materials used in the low-density solar water heater water tank polyurethane horizontal foaming process are composed of the following raw materials in parts by weight:

[0030]

[0031] According to the above ratio, each raw material is mixed for production, among which polyether polyol is 55 parts of KS-8326, 20 parts of polyether 4110, 10 parts of polyether 330B, 15 parts of YT-635S, and the foam stabilizer is CGY- 5. The composite catalyst uses 0.6 parts of pentamethyldiethylenetriamine and 0.8 parts of dimethylbenzylamine, and the blowing agent is 141b.

Embodiment 3

[0033] The foaming raw materials used in the low-density solar water heater water tank polyurethane horizontal foaming process are composed of the following raw materials in parts by weight:

[0034]

[0035] According to the above ratio, each raw material is mixed for production, including 60 parts of polyether polyol KS-8326, 25 parts of polyether 330B and 15 parts of polyether 635, the foam stabilizer is 6810c, and the composite catalyst uses 0.3 parts of triphenol , 0.6 parts of dimethylbenzylamine, and 0.4 parts of pentamethyldiethylenetriamine, and the blowing agent is 141b.

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Abstract

Belonging to the technical field of solar foaming, the invention relates to low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials. The equipment is characterized in that a water tank and an outer container are horizontally fixed on a mold platform, two ends of which are equipped with dismountable fixation molds. The mold platform is provided with multiple uniformly distributed columnar positioning plugs. An injection port is disposed at the top of the mold platform, and during foaming, the foaming raw materials are mixed and then injected through the injection port. With the horizontal foaming process and the raw materials, the process has the characteristics of simple and reasonable design, easy processing and easy operation. A water tank thermal insulation layer has uniformly distributed density, and the thermal insulation effect is improved. The water tank and the outer container are maintained concentric very well, and the water tank outer container is free of cracking, barrel burst and other problems. Special polyether has the advantages of good lateral fluidity, low foam density, fine and uniform foams, and less fatigue foams. The reduction of a foam filling content can make the material cost reduced by 15%-20%, and the production efficiency is improved by 20%-30%.

Description

technical field [0001] The invention relates to a low-density solar water heater water tank polyurethane horizontal foaming equipment and raw materials, belonging to the technical field of solar foaming. Background technique [0002] Solar water heater is a product that makes full use of solar energy to provide hot water. It is more and more favored by people because of its advantages of cleanness, safety, convenience, and no energy consumption. Especially in recent years, solar water heaters have been developing rapidly, and have become a rising star that has attracted the attention of the industry with a high growth rate of 20% to 30% per year. The main material of the thermal insulation layer of the solar water heater tank is polyaminase foam. In the production of polyaminase foam, vertical foaming is mainly used in the traditional process. The vertical foaming foam has a large climbing height, resulting in a large foam density gradient, mostly fatigue foam at the top, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/02B29C44/58C08G18/48C08J9/14C08L75/08
Inventor 李洪国邵秀英
Owner 山东联创聚合物有限公司