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Expansion valve platform for teaching demonstration

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

Active Publication Date: 2019-07-19
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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  • Expansion valve platform for teaching demonstration
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  • Expansion valve platform for teaching demonstration

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 demonstration frame, in particular to an expansion valve platform for teaching demonstration. The expansion valve platform for teaching demonstration enables visualand understandable teaching demonstration, has a heat preservation effect and is insusceptible to external temperatures. The technical scheme includes that the expansion valve platform for teaching demonstration comprises a platform body, a condenser, a first connection pipe, a second connection pipe, a condenser, an evaporator, a third connection pipe, a fourth connection pipe, an expansion valve, a first bolt and the like. The condenser is mounted on the left side of the top of the platform body, the first connection pipe is connected to the right lower portion of the condenser, and the compressor is mounted on the right upper portion of the condenser. An external heat source is connected with the evaporator to enable operation, a thermal bulb well receives the temperature of the fourthconnection pipe through a heat preservation device, and demonstration result inaccuracy caused by influences of the external temperatures can be prevented.

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 Applications(China)
IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 不公告发明人
Owner HAIAN RUIHUA TEXTILE TECH CO LTD