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A kind of processing method of shrinkage of heat preservation water tank

A technology for a thermal insulation water tank and a treatment method, which is applied to household refrigeration devices, lighting and heating equipment, household appliances, etc. problems such as tightness and the influence of the heat preservation effect of the water tank to achieve the effect of improving the efficiency of shrinkage foam treatment, easy access, and small gap

Active Publication Date: 2018-11-16
MAANSHAN NBWAVE HEAT ENERGY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing problems are: 1. The foam insulation layer of this patent is located between the insulation cotton layer and the outer shell of the water tank, that is to say, the insulation cotton layer is closer to the inner tank of the water tank than the foam insulation layer. In fact, what this patent really wants to solve is When the ambient temperature of the water tank is low, due to the difference in heat capacity ratio between the foam insulation layer and the water tank liner, the combination between the foam insulation layer and the water tank liner is not tight, or the insulation quality is poor due to the formation of cavities. In response to this problem, manufacturers are now adopting the method of raising the temperature of the inner tank, so that the heat capacity ratio of the inner tank during foaming is close to the foam insulation layer, so that the foamed insulation layer of the water tank after foaming is the same as the tank inner tank. The combination is tight and there is no cavity phenomenon, which means that the improvement of industry technology has made this patent useless in advance
2. This patent is used to solve the problem of poor thermal insulation quality caused by the poor combination of the foam insulation layer and the water tank inner tank caused by the difference in heat capacity ratio between the foam insulation layer and the water tank inner tank, or the formation of cavities , can not solve the quality defect between the water tank shell and the internal insulation layer
3. At present, the defects of foaming quality in the industry are concentrated on the shrinkage between the water tank shell and the foam insulation layer
4. This patent utilizes the thermal insulation capacity of the thermal insulation cotton layer itself to ensure the thermal insulation performance of the water tank. However, due to the phenomenon of shrinkage, it still affects the thermal insulation effect of the water tank, and does not fundamentally solve the thermal insulation problem. Water tank shrinkage problem

Method used

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  • A kind of processing method of shrinkage of heat preservation water tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for treating foam shrinkage in an insulated water tank, the steps of which are:

[0047] A. Open the upper end cover 2 of the thermal water tank; press or knock with your fist, and judge the position of the shrinking cavity from the feel and sound. The shrinkage depends on the shell plate 3, which is generally a 0.5mm color steel plate. When you press or knock the force into it, you can feel the space inside, and you can judge the position of the shrinkage cavity.

[0048] B. Open the material guide hole 53 from the upper port of the heat preservation water tank to the top of the shrinkage chamber; use a manual drill to open the material guide hole 53 from the upper port of the heat preservation water tank to the top of the shrinkage chamber. Returning to the factory for maintenance saves time and improves efficiency.

[0049] If the shrinkage cavity is too far away from the upper port of the heat preservation water tank, manual drilling can lengthen it. It i...

Embodiment 2

[0062] This embodiment is the same as embodiment 1. After the thermal insulation water tank shrinks, use the method of the present invention to drill holes on the thermal insulation layer using a manual drill to form a material guide hole 53, and then fill the new thermal insulation material 54 into the shrinkage cavity I51 and In the shrinking chamber II52, 20-30 units can be processed a day, and the material cost is below 50 yuan. Compared with the processing method of the prior art in the comparative example, the cost is saved and the working efficiency is improved.

Embodiment 3

[0064] This embodiment is similar to Embodiment 1, and the steps are as follows:

[0065] Step 1: To judge whether an insulated water tank is shrinking or not, press it with your hand or fist, and judge the position of the shrinking cavity from the feel and sound. The shrinkage cavity is all based on the outer shell plate 3, which is generally a 0.5mm color steel plate. When the force is passed in by pressing or knocking, the inner space can be felt, and the position of the shrinkage cavity can be judged;

[0066] Step 2: use a manual drill to open the guide hole 53 from the upper port of the heat preservation water tank to the top of the shrinking cavity. When opening the guide hole 53, avoid touching the outer shell plate 3 and the inner tank body 4 to protect the heat preservation The structure of the water tank is easy to operate, and the technician can directly operate it on site without returning to the factory for maintenance, which saves time and improves efficiency; ...

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Abstract

The invention discloses a foam shrinkage treatment method of an insulation water tank, and belongs to the technical field of insulation water tanks. The method comprises the following steps: (A) an upper end cover of the insulation water tank is opened; (B) a guide hole is formed in an upper port of the insulation water tank to the top end of a foam shrinkage cavity; (C) insulation material particles are leaded in the foam shrinkage cavity along the guide hole; (D) after the insulation material is fully filled in the whole guide hole, the injected insulation material is tamped by a round rod; and (E) the upper end cover is mounted on the upper port of the insulation water tank. In the process of injecting the insulation material, the insulation water tank is slightly shaken to guarantee that the insulation material is fully filled in the whole foam shrinkage cavity. For the insulation water tank incapable of disassembling the end cover, the upper end cover only needs to be replaced. The guide hole is formed in the upper port of the insulation water tank to the top end of the foam shrinkage cavity by using a manual drill, so that the operation is convenient, artisans directly operate in field without needing factory repair, the time is saved, and the efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation water tanks, in particular to a treatment method for foam shrinkage of thermal insulation water tanks. Background technique [0002] Existing thermal insulation water tanks include an inner tank, an outer shell, and an insulating layer filled in the cavity between the inner tank and the outer shell. The insulating layer is usually made of polyurethane foam, which is widely used in industrial and civil industries, especially in cold storage Or water heater insulation water tank, this kind of foam has a high closed cell rate, good thermal insulation performance, light weight and easy operation. However, when the foaming material of the insulation layer is foamed to synthesize rigid foam, it will produce severe volume expansion and severe volume shrinkage within a certain period of time, so that the internal structure of the insulation layer or the insulation layer and the outer shell will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/00F25D23/00
CPCF24H9/0005F25D23/00F25D2201/10
Inventor 汪仁航吴剑峰
Owner MAANSHAN NBWAVE HEAT ENERGY SCI