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Enthalpy difference method test system containing nozzle sealing mechanism

A technology of a test system and a sealing mechanism, which is applied to the field of the comprehensive test device of the air conditioner enthalpy difference method, can solve the problems affecting the accuracy of the air conditioner enthalpy difference test result, the sealing is not strict, etc., and achieves the effects of simple structure, easy adjustment and simplified structure.

Inactive Publication Date: 2016-07-27
HEFEI GENERAL MACHINERY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The nozzle sealing structure has been tested and found that although it can automatically block the nozzle, it often fails to seal tightly after a period of use, which directly affects the accuracy of the air conditioner enthalpy difference test results

Method used

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  • Enthalpy difference method test system containing nozzle sealing mechanism
  • Enthalpy difference method test system containing nozzle sealing mechanism
  • Enthalpy difference method test system containing nozzle sealing mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 2 , 3 As shown, the nozzle sealing mechanism of the present invention includes a plug 4 for blocking the nozzle 1 in the wind tunnel. The diameter of the spherical sealing structure 3 is larger than the diameter of the nozzle 1 , the radial dimension of the top of the cone of the conical sealing structure 3 is smaller than the diameter of the nozzle 1 , and the radial dimension of the bottom of the cone is larger than the diameter of the nozzle 1 . That is, when the present invention is used to block the nozzle 1 in the wind tunnel mechanism, the spherical sealing structure 3 extends into the interior of the nozzle 1, or the cone tip of the conical sealing structure 3 extends into the interior of the nozzle 1. Due to the diameter of the spherical sealing structure 3 Larger than the diameter of the nozzle 1, the radial dimension of the top of the cone of the conical sealing structure 3 is smaller than the diameter of the nozzle 1, and the radial dimension of ...

Embodiment 2

[0045] like Figure 4 As shown, the enthalpy difference method test system including the nozzle sealing mechanism of the present invention includes an indoor simulation room 10a, an outdoor simulation room 10b and a control mechanism; the indoor simulation room 10a is provided with an air conditioner indoor unit 20a, a first temperature and humidity sampling device 30a, and a wind tunnel mechanism 40 for measuring the circulating air volume of the air conditioner internal unit 20a, the nozzle 1 in the wind tunnel mechanism 40 is provided with a corresponding nozzle sealing mechanism; the outdoor simulation room 10b is provided with an air conditioner external unit 20b, Two temperature and humidity sampling devices 30b; the air conditioner inner unit 20a and the air conditioner outer unit 20b constitute the air conditioner mechanism to be detected;

[0046] The enthalpy difference method test system includes an indoor pressure cooling unit 50a for adjusting the temperature in t...

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Abstract

The invention relates to an enthalpy difference method test system containing a nozzle sealing mechanism.The nozzle sealing mechanism comprises a plug for blocking a nozzle in a wind tunnel, the plug is provided with a spherical or conical sealing structure which blocks the nozzle and is provided with elasticity, the diameter of the spherical sealing structure is larger than that of the nozzle, the radial size of the conical top of the conical sealing structure is smaller than the diameter of the nozzle, and the radial size of the conical bottom is larger than the diameter of the nozzle.When the nozzle sealing mechanism is used for blocking the nozzle in a wind tunnel mechanism, the spherical sealing structure stretches into the nozzle, or the conical tip of the conical sealing structure stretches into the nozzle, the spherical or conical sealing structure and the nozzle are in squeezing contact, the sealing area is increased, the spherical or conical structure can be well clamped into the nozzle to achieve a tight sealing effect, and loosing and falling do not happen easily.The enthalpy difference method test system is simple and practical in structure, and reliability of the enthalpy difference test result of an air conditioner is effectively guaranteed.

Description

technical field [0001] The invention belongs to the field of air-conditioning enthalpy difference method comprehensive test devices, in particular to an enthalpy difference method test system used in a wind tunnel containing a nozzle sealing mechanism. Background technique [0002] The wind tunnel mechanism is the core component of the enthalpy difference method test device, which is used to accurately measure the parameters such as the circulating air volume of the tested air conditioner, and the dry and wet bulb temperature of the outlet air. The wind tunnel mechanism includes a closed box. One end of the box is provided with an interface connected to the air supply port of the tested air conditioner, and the other side is provided with an air outlet. The box is provided with a mixer, a temperature and humidity sampling device, and a nozzle. Mechanisms and auxiliary fans and other components. During the test, connect the air supply port of the tested air conditioner to th...

Claims

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Application Information

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IPC IPC(8): G01M9/04G01M99/00
CPCG01M9/04G01M99/005
Inventor 孙云张伟夏玲戴琳黄磊李斯文何亚峰
Owner HEFEI GENERAL MACHINERY RES INST
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