High precision air-conditioning capability test apparatus

A test device and high-precision technology, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve problems such as poor consistency, large changes in air conditioning capacity, long measurement cycles, etc., and achieve accurate and consistent capacity values High, short operating cycle effect

Pending Publication Date: 2017-04-26
中标能效科技(北京)有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the current control theory, the deviation is zero and the environment that does not change with time is the goal, so it is easy to think that there is a limit to the contro...

Method used

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  • High precision air-conditioning capability test apparatus
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  • High precision air-conditioning capability test apparatus

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Embodiment approach

[0058] By adopting the second implementation mode, 1) the ambient temperature and humidity are controlled within the range of ±0.01K, and the periodic fluctuation is centered on the target value; 2) the tested air conditioner capacity value is accurate and consistent; 3) The operation period is short, which reduces the laboratory operation cost. Regardless of whether the first implementation or the second implementation is adopted, after entering the micro-amplitude control, that is, when the change curves of the measured values ​​of the dry bulb temperature and wet bulb temperature fluctuate periodically around the set value, it is necessary to collect Proficiency testing uses data to complete proficiency testing.

[0059] The specific working process of the high-precision air-conditioning capability test device is illustrated below in conjunction with the first embodiment:

[0060] see Figure 5 , the test starts, and the high-precision air-conditioning capability test dev...

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Abstract

The invention provides a high precision air-conditioning capability test apparatus comprising an air reconditioning machine unit and a central calculation device, wherein the air reconditioning machine unit comprises a heating and cooling heat exchanger, a heating electric heater, a tiny temperature amplitude change adjusting heater, a humidifying electric heater and a tiny humidity amplitude change adjusting heater; the central calculation device comprises high precision type dry bulb temperature and wet bulb temperature detecting devices, an interference removing unit, a stable control unit, a tiny amplitude control unit, a changing quadrant determining unit and a period average calculation unit; the stable control unit is used for changing an unstable state of working conditions in environmental space to a stable state, and the tiny amplitude control unit is used for enabling periodic fluctuation of measured temperature value of the environmental space in a set temperature value range. Via the above technical solution, the high precision air-conditioning capability test apparatus can help control environment temperature and humidity to be in a range from -0.01K to +0.01K, goal value-centered periodic fluctuation can be realized, measured air conditioner capability values are accurate and high in consistency, the high precision air-conditioning capability test apparatus is short in operation period, and laboratory operation cost is reduced.

Description

technical field [0001] The invention belongs to the field of air conditioner capability test, in particular to a high-precision air conditioner capability test device. Background technique [0002] There are two main types of air-conditioning capacity test devices: one is the air enthalpy method test device, and the other is the balance environment type calorimeter test device. [0003] The air enthalpy method test device adopts the air enthalpy difference method for testing, and its structure is as follows: figure 1 shown. During the test, adjust the air reprocessing units on the indoor and outdoor sides of the test device first, so that the respective dry bulb temperature and wet bulb temperature on the indoor and outdoor sides reach the specified environmental conditions. After the environmental conditions are stable, the air conditioner passes the test. The air-inlet dry-bulb temperature and the air-inlet wet-bulb temperature and the air-conditioner's air-out dry-bulb ...

Claims

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Application Information

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IPC IPC(8): G01M99/00
CPCG01M99/002G01M99/005Y02B30/70
Inventor 菅原作雄
Owner 中标能效科技(北京)有限公司
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