本文選題：取暖器　切入點(diǎn)：熱場(chǎng)　出處：《廣東工業(yè)大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：取暖器的設(shè)計(jì)涉及結(jié)構(gòu)、空氣動(dòng)力學(xué)、傳熱學(xué)的理論,因企業(yè)設(shè)計(jì)技術(shù)水平和成本的限制,很少有企業(yè)會(huì)詳細(xì)的計(jì)算各種參數(shù)對(duì)取暖器性能的影響,大多是依靠經(jīng)驗(yàn)進(jìn)行設(shè)計(jì)。在完成設(shè)計(jì)工作后,需要生產(chǎn)物理樣機(jī)來(lái)測(cè)試產(chǎn)品的性能,然后根據(jù)試驗(yàn)數(shù)據(jù)去指導(dǎo)設(shè)計(jì)更改。由于對(duì)取暖器內(nèi)部熱場(chǎng)分布及其原因不清楚,這種對(duì)產(chǎn)品進(jìn)行的改進(jìn)具有一定的主觀性和盲目性。因此,實(shí)驗(yàn)的過(guò)程需要反復(fù)幾遍,才能得到合格的產(chǎn)品,增加了產(chǎn)品研發(fā)周期和成本。 利用計(jì)算流體動(dòng)力學(xué)理論,結(jié)合傳熱學(xué)基本原理,可以準(zhǔn)確地模擬產(chǎn)品的熱場(chǎng)分布情況,但由于這種分析對(duì)理論要求較高,一般工程師很難完成,這就出現(xiàn)了先進(jìn)技術(shù)無(wú)法在實(shí)際生產(chǎn)中發(fā)揮作用的現(xiàn)象。針對(duì)這種情況,本文以取暖器為研究對(duì)象,以Solidworks Flow Simulation為分析工具,研究取暖器的熱場(chǎng)分析技術(shù),尋找影響取暖器溫度分布的因素,并提出產(chǎn)品改進(jìn)方案。本文主要研究?jī)?nèi)容如下： (1)建立取暖器熱場(chǎng)分析的數(shù)學(xué)模型。根據(jù)產(chǎn)品的特點(diǎn),分析取暖器內(nèi)部熱量傳遞的方式,構(gòu)建每種傳熱模式的解析計(jì)算方法。針對(duì)解析算法的難點(diǎn),研究數(shù)值計(jì)算方法在取暖器傳熱過(guò)程的應(yīng)用。 (2)研究對(duì)流式取暖器的熱場(chǎng)分析方法。分析在熱場(chǎng)分析中需要考慮的關(guān)鍵的參數(shù),找出當(dāng)前產(chǎn)品存在的問(wèn)題,發(fā)掘問(wèn)題產(chǎn)生的原因。 (3)研究輻射式取暖器的熱場(chǎng)分析方法。以市面上常見(jiàn)的反射式取暖器為例,研究反射罩參數(shù)的變化對(duì)取暖器熱場(chǎng)的影響。 (4)研究油汀取暖器熱場(chǎng)分析技術(shù)。油汀取暖器工作時(shí)同時(shí)發(fā)生空氣和導(dǎo)熱油兩種流體的自然對(duì)流運(yùn)動(dòng),研究?jī)煞N流動(dòng)的形式及其影響因素,為油汀取暖器產(chǎn)品優(yōu)化提供參考。 (5)為了降低取暖器熱場(chǎng)分析的難度,提高分析效率,研究了Flow Simulation二次開(kāi)發(fā)技術(shù),在三種取暖器熱場(chǎng)分析技術(shù)的基礎(chǔ)上,建立專門應(yīng)用于取暖器的熱場(chǎng)分析平臺(tái)。 (6)根據(jù)對(duì)流式取暖器熱場(chǎng)分析結(jié)果,針對(duì)其存在的問(wèn)題,利用取暖器熱場(chǎng)分析平臺(tái),對(duì)取暖器進(jìn)行改進(jìn)分析,驗(yàn)證分析平臺(tái)的可靠性,同時(shí)提高取暖器的安全性能和取暖效率。 本文對(duì)三種主要類型的取暖器進(jìn)行研究,為產(chǎn)品熱場(chǎng)分析提供一種可靠的方法,有利于取暖器行業(yè)研發(fā)水平的提高。在總結(jié)取暖器熱場(chǎng)分析方法的基礎(chǔ)上,研究了基于Flow Simulation的取暖器熱場(chǎng)分析平臺(tái)的開(kāi)發(fā)方法,從而使熱場(chǎng)分析的流程簡(jiǎn)化,以降低分析難度,減少出錯(cuò),提高分析效率,也為企業(yè)定制自己產(chǎn)品的研發(fā)模式提供一種思路。本文提出的取暖器改進(jìn)方法,對(duì)取暖器的設(shè)計(jì)開(kāi)發(fā)具有普遍的指導(dǎo)意義,有助于企業(yè)研發(fā)從經(jīng)驗(yàn)設(shè)計(jì)向數(shù)字化設(shè)計(jì)的轉(zhuǎn)變。
[Abstract]:The design of the heater involves the theory of structure, aerodynamics, heat transfer. Because of the limitation of the technical level and cost of the enterprise design, few enterprises will calculate the influence of various parameters on the performance of the heater in detail. Most of the design is based on experience. After the design is completed, a physical prototype is produced to test the performance of the product, and then to guide the design changes according to the test data. Because the distribution of heat field inside the heater and its reasons are not clear, The improvement of the product is subjective and blind. Therefore, the process of the experiment needs to be repeated several times in order to get the qualified product and increase the cycle and cost of product research and development. By using the theory of computational fluid dynamics and the basic principles of heat transfer, the thermal field distribution of the product can be accurately simulated. However, due to the high theoretical requirements for this analysis, it is difficult for the general engineer to complete the analysis. As a result, the advanced technology can not play a role in the actual production. In this paper, the thermofield analysis technology of the heater is studied with Solidworks Flow Simulation as the research object and Solidworks Flow Simulation as the research object. The main contents of this paper are as follows: (1) to find out the factors that affect the temperature distribution of the heater, and to put forward the product improvement scheme. 1) establish the mathematical model of heat field analysis of heater. According to the characteristics of the product, analyze the way of heat transfer inside the heater, and construct the analytical calculation method of each heat transfer mode. The application of numerical calculation method in heat transfer process of heater is studied. 2) the thermal field analysis method of flow heater is studied, the key parameters in thermal field analysis are analyzed, the problems existing in current products are found out, and the causes of the problems are found out. (3) the thermal field analysis method of radiative heater is studied. The influence of the parameters of the reflector on the thermal field of the radiator is studied by taking the reflex heater as an example. The natural convection movement of both air and heat conduction oil is observed simultaneously, and the two kinds of flow forms and their influencing factors are studied, which provides a reference for the optimization of the product of the oil heater. 5) in order to reduce the difficulty of heat field analysis of heater and improve the efficiency of analysis, the secondary development technology of Flow Simulation is studied. Based on three kinds of thermal field analysis technology of heater, a special analysis platform for heat field is established. 6) according to the results of thermal field analysis of flow heater, according to its existing problems, the heater is improved and analyzed by using the platform of heat field analysis of heater, the reliability of the analysis platform is verified, and the safety performance and heating efficiency of the heater are improved at the same time. In this paper, three main types of heaters are studied to provide a reliable method for product thermal field analysis, which is beneficial to the improvement of the research and development level of the heater industry. The development method of heating field analysis platform based on Flow Simulation is studied, which simplifies the process of thermal field analysis, reduces the difficulty of analysis, reduces errors and improves the efficiency of analysis. It also provides a train of thought for enterprises to customize their own product R & D mode. The improved method of heater proposed in this paper has universal guiding significance for the design and development of heater, and is helpful to the transformation of enterprise R & D from empirical design to digital design.
【學(xué)位授予單位】：廣東工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH122

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 劉濤濤;基于TRIZ的空氣動(dòng)力汽車關(guān)鍵零部件研究[D];山東大學(xué);2013年

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本文編號(hào)：1609509