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圍繞低溫恒溫試驗(yàn)箱系統(tǒng)共同分析節(jié)能問(wèn)題

    論文圍繞低溫恒溫試驗(yàn)箱系統(tǒng)節(jié)能問(wèn)題，通過(guò)紅外無(wú)損檢測(cè)技術(shù)對(duì)恒溫恒濕試驗(yàn)箱維護(hù)結(jié)構(gòu)保溫性能進(jìn)行了實(shí)驗(yàn)研究，分析了低溫恒溫試驗(yàn)箱門流場(chǎng)和能耗利用情況、計(jì)算了制冷系統(tǒng)能耗匹配問(wèn)題等，其主要工作內(nèi)容和結(jié)論如下：Paper around the low temperature test chamber system energy saving problem, through infrared nondestructive testing technology to maintain constant temperature and humidity test chamber structure heat preservation performance has carried on the experimental study, the door is low temperature constant temperature test flow field are analyzed and the using situation of energy consumption, calculate the energy consumption of refrigeration system matching problem, etc., its main contents and conclusions are as follows:            

    1、分析了熱流法、熱箱法及紅外無(wú)損檢測(cè)的檢測(cè)原理，利用紅外熱像儀對(duì)某恒溫恒濕試驗(yàn)箱維護(hù)結(jié)構(gòu)保溫缺陷進(jìn)行了紅外檢測(cè)，利用 MATAB 軟件對(duì)紅外圖片進(jìn)行了直方圖均衡化、自適應(yīng)濾波和中值濾波等處理，即將紅外圖片轉(zhuǎn)化為灰度圖片并對(duì)灰度進(jìn)行了拉伸，并和數(shù)值分析對(duì)比，結(jié)果表明處理過(guò)的圖片可以直觀、清晰的反映出低溫恒溫試驗(yàn)箱保溫缺陷。1, analyzed the heat flux method, hot box method and testing principle of infrared nondestructive testing, using the infrared thermal imager to maintain a constant temperature and humidity test chamber structure insulation defects for the infrared detection, using MATAB software of infrared image histogram equalization, adaptive filtering and median filtering and other processing, the infrared images into grayscale image and the gray level stretch, and numerical analysis, the results show that the processed images can be intuitive, clear reflect the low temperature constant temperature test chamber insulation defects.

    2、利用紅外熱像儀對(duì)一低溫恒溫試驗(yàn)箱維護(hù)結(jié)構(gòu)的內(nèi)外表面溫度場(chǎng)進(jìn)行了逐時(shí)測(cè)量，采用面積加權(quán)平均法求取了低溫恒溫試驗(yàn)箱內(nèi)外墻表面溫度，計(jì)算了逐時(shí)傳熱系數(shù)和熱流密度，并和恒溫恒濕試驗(yàn)箱設(shè)計(jì)值進(jìn)行了對(duì)比，實(shí)驗(yàn)誤差在 10％以內(nèi)，也就說(shuō)利用此方法可以達(dá)到工程實(shí)用的要求，為低溫恒溫試驗(yàn)箱建庫(kù)及后期保溫性能檢測(cè)提供了理論依據(jù)和一種檢測(cè)手段。2, the use of infrared thermal imager to maintain a low temperature constant temperature test chamber structure of inside and outside surface temperature field was carried out by measuring, the area of the weighted average method is adopted to calculate the temperature constant temperature test the outer wall surface temperature in the cabinet, were calculated by heat transfer coefficient and heat flux, and constant temperature and humidity test chamber design value were compared, the experiment error within 10%, with this method is said to be able to achieve the requirement of the engineering practical, built libraries for low temperature constant temperature test chamber and the late insulation detection provides the theoretical basis and a detection means.

    3、恒溫恒濕試驗(yàn)箱維護(hù)結(jié)構(gòu)的傳熱負(fù)荷占到低溫恒溫試驗(yàn)箱熱負(fù)荷的 20％-35％，減少維護(hù)結(jié)構(gòu)傳熱可以達(dá)到節(jié)能的目的，本文分析了目前運(yùn)行恒溫恒濕試驗(yàn)箱的庫(kù)型特點(diǎn)，按優(yōu)化化理論，對(duì)比了正方形、長(zhǎng)方形及圓柱形庫(kù)體，并按照節(jié)能原則認(rèn)為圓柱體恒溫恒濕試驗(yàn)箱可以減少恒溫恒濕試驗(yàn)箱維護(hù)結(jié)構(gòu)得熱。3, constant temperature and humidity test chamber maintenance of the structure of the heat load of the low temperature test chamber heat load of 20% 35%, reduce heat transfer can achieve the goal of energy saving maintenance structure, this paper analyzes the current operation type library characteristic of constant temperature and humidity test chamber, according to optimization theory, and compared the square, rectangular and cylindrical body, in accordance with the principle of energy conservation and thought the cylinder constant temperature and humidity test chamber can reduce the maintenance structure constant temperature and humidity test chamber heat gain.

    4、恒溫恒濕試驗(yàn)箱由于空氣幕設(shè)置不當(dāng)或不合理極易導(dǎo)致恒溫恒濕試驗(yàn)箱庫(kù)房吊頂結(jié)霜及積霜融化侵蝕導(dǎo)致墻體的損壞，本文分析了影響低溫恒溫試驗(yàn)箱庫(kù)門流場(chǎng)的因素，建立了空氣幕存在情況下的空氣滲透量方程，計(jì)算了某運(yùn)行恒溫恒濕試驗(yàn)箱空氣幕的空氣滲透量，并對(duì)運(yùn)行空氣幕進(jìn)行了結(jié)構(gòu)參數(shù)及運(yùn)行條件優(yōu)化，得出優(yōu)化后的空氣幕較優(yōu)化前可節(jié)能 40％左右。4, constant temperature and humidity test chamber due to improper air curtain set or unreasonable easily lead to constant temperature and humidity test chamber warehouse condole carries on the frosting and frost melt erosion cause the damage of the wall, this paper analyzes the influence of low temperature constant temperature test chamber door factors of flow field, established the air ShenTouLiang equation, under the circumstance of air curtain is calculated by running a constant temperature and humidity test chamber air ShenTouLiang air curtain, and the operation of air curtain has carried on the optimization of structural parameters and operating conditions, it is concluded that the optimized air curtain before optimization can energy saving 40% or so.

    5、恒溫恒濕試驗(yàn)箱能耗管理在很多低溫恒溫試驗(yàn)箱運(yùn)行管理中沒(méi)有得到足夠的重視，利用 VB 作為軟件開(kāi)發(fā)平臺(tái)的優(yōu)勢(shì)，開(kāi)發(fā)了基于 VB 的恒溫恒濕試驗(yàn)箱能耗管理軟件，軟件包括數(shù)據(jù)采集模塊、數(shù)據(jù)存儲(chǔ)模塊、報(bào)表打印模塊、用戶管理模塊等，該程序目前已在恒溫恒濕試驗(yàn)箱能耗管理中開(kāi)始試用。5, constant temperature and humidity test chamber management of energy consumption in a lot of low temperature test box didn't get enough attention in operation and management, using VB as the advantage of software development platform, developed based on VB constant temperature and humidity test chamber energy management software, software includes data acquisition module, data storage module, report forms printing module, user management module, the program is now being tried in the constant temperature and humidity test chamber energy consumption management.

    6、恒溫恒濕試驗(yàn)箱設(shè)計(jì)負(fù)荷和運(yùn)行負(fù)荷往往會(huì)存在很大的差別，很多恒溫恒濕試驗(yàn)箱由于設(shè)備老化、后期改造、，跑冷等原因，使得系統(tǒng)冷量不相匹配，造成大馬拉小車現(xiàn)象，導(dǎo)致能耗的浪費(fèi)，本文通過(guò)對(duì)低溫恒溫試驗(yàn)箱實(shí)際熱負(fù)荷及壓縮機(jī)所供冷量的對(duì)比分析，指出了恒溫恒濕試驗(yàn)箱運(yùn)行中存在的問(wèn)題，并從技術(shù)水平和管理手段兩方面對(duì)恒溫恒濕試驗(yàn)箱的節(jié)能運(yùn)行提出了改進(jìn)措施。6, constant temperature and humidity test chamber design load and running load tend to existence very big difference, a lot of constant temperature and humidity test chamber due to the equipment aging, later reconstruction, and run cold, does not match the flow system of cold, big mara car phenomenon, cause the waste of energy consumption, this article through to the low temperature test chamber is actually an analysis of the comparison of the heat load and cooling compressor, points out the problems in the operation of the constant temperature and humidity test chamber, and from two aspects of technology and management methods of constant temperature and humidity test chamber for energy saving operation improvement measures are put forward.

    低溫恒溫試驗(yàn)箱發(fā)展變化受到經(jīng)濟(jì)發(fā)展變化因素的影響，鴻達(dá)天矩根據(jù)其中的變化規(guī)律，用心血融鑄經(jīng)營(yíng)理念，讓企業(yè)文化生生不息！專業(yè)生產(chǎn)環(huán)境生產(chǎn)設(shè)備二十余年，咨詢！Low temperature test chamber are under the influence of the change of economic development, the development and change of hong da day moment according to the changing law of them with painstaking care strring management concept, make the enterprise culture circle of life! Production equipment more than 20 years specializing in the production environment, welcome call consulting