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An expansion valve bench for teaching and display

An expansion valve and bench technology, applied in the field of teaching display racks, can solve the problems of not being intuitive enough, unable to isolate temperature, and inaccurate demonstration results, etc.

Active Publication Date: 2021-02-19
HAIAN RUIHUA TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings that students are not intuitive enough and difficult to understand when learning, the expansion valve demonstration bench currently used cannot be isolated from the temperature and will be affected by the indoor temperature, resulting in inaccurate demonstration results. Technical problem: provide an intuitive , easy to understand, able to keep warm, and not affected by the external temperature, the expansion valve bench for teaching and display

Method used

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  • An expansion valve bench for teaching and display
  • An expansion valve bench for teaching and display
  • An expansion valve bench for teaching and display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An expansion valve bench for teaching and display, such as Figure 1-2 As shown, it includes a bench 1, a condenser 2, a first connecting pipe 3, a second connecting pipe 4, a compressor 5, an evaporator 6, a third connecting pipe 7, a fourth connecting pipe 8, an expansion valve body 9, First bolt 11, fixed plate 12, first block 13, first connecting rod 14, first guide sleeve 15, first guide rod 16, second block 17, first compression spring 18, contact plate 19, film Sheet 20, transparent plate 201, temperature sensing package 21, curved tube 211, inert liquid 212, heat preservation device 22, second bolt 24 and nut 25, condenser 2 is installed on the left side of the top of platform 1, and platform 1 passes bolt The connection method is connected to the condenser 2, the first connecting pipe 3 is connected to the lower right side of the condenser 2, the compressor 5 is installed on the upper right side of the condenser 2, and the second connecting pipe is connected to...

Embodiment 2

[0017] An expansion valve bench for teaching and display, such as Figure 1-2As shown, it includes a bench 1, a condenser 2, a first connecting pipe 3, a second connecting pipe 4, a compressor 5, an evaporator 6, a third connecting pipe 7, a fourth connecting pipe 8, an expansion valve body 9, First bolt 11, fixed plate 12, first block 13, first connecting rod 14, first guide sleeve 15, first guide rod 16, second block 17, first compression spring 18, contact plate 19, film Sheet 20, transparent plate 201, temperature sensing package 21, curved pipe 211, inert liquid 212, heat preservation device 22, second bolt 24 and nut 25, the top left side of platform 1 is equipped with condenser 2, the right side of condenser 2 The first connecting pipe 3 is connected to the lower part of the side, the compressor 5 is installed on the upper right side of the condenser 2, the second connecting pipe 4 is connected to the right side of the compressor 5, and the expansion valve body 9 is emb...

Embodiment 3

[0020] An expansion valve bench for teaching and display, such as Figure 1-2 As shown, it includes a bench 1, a condenser 2, a first connecting pipe 3, a second connecting pipe 4, a compressor 5, an evaporator 6, a third connecting pipe 7, a fourth connecting pipe 8, an expansion valve body 9, First bolt 11, fixed plate 12, first block 13, first connecting rod 14, first guide sleeve 15, first guide rod 16, second block 17, first compression spring 18, contact plate 19, film Sheet 20, transparent plate 201, temperature sensing package 21, curved pipe 211, inert liquid 212, heat preservation device 22, second bolt 24 and nut 25, the top left side of platform 1 is equipped with condenser 2, the right side of condenser 2 The first connecting pipe 3 is connected to the lower part of the side, the compressor 5 is installed on the upper right side of the condenser 2, the second connecting pipe 4 is connected to the right side of the compressor 5, and the expansion valve body 9 is em...

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Abstract

The invention relates to a teaching display stand, in particular to an expansion valve stand for teaching display. Technical problem: To provide an expansion valve bench for teaching and display that is intuitive, easy to understand, capable of heat preservation, and not affected by external temperature. The technical solution is as follows: an expansion valve bench for teaching and display, including a bench, a condenser, a first connecting pipe, a second connecting pipe, a compressor, an evaporator, a third connecting pipe, a fourth connecting pipe, and an expansion valve body, the first bolt, etc.; a condenser is installed on the left side of the top of the stand, a first connecting pipe is connected to the lower right side of the condenser, and a compressor is installed on the upper right side of the condenser. The present invention connects the external heat source with the evaporator, so that the device can operate, and the temperature sensing package can better receive the temperature of the fourth connecting pipe through the heat preservation device, and can prevent being affected by the external temperature, resulting in inaccurate demonstration results.

Description

technical field [0001] The invention relates to a teaching display stand, in particular to an expansion valve stand for teaching display. Background technique [0002] The expansion valve is an important part in the refrigeration system, generally installed between the liquid storage cylinder and the evaporator. The expansion valve makes the medium-temperature and high-pressure liquid refrigerant become low-temperature and low-pressure wet steam through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect. The expansion valve controls the flow rate of the valve through the change of the superheat at the end of the evaporator to prevent Insufficient utilization of evaporator area and knocking phenomenon. In the teaching process, when the teacher explains the working principle of the expansion valve, he usually explains it through text descriptions or adding some pictures, so that the students are not intuitive enough and diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 不公告发明人
Owner HAIAN RUIHUA TEXTILE TECH CO LTD