【摘要】：爆破片裝置是一種常用在壓力容器、管道及各種承壓類設(shè)備上的安全附件。它能在系統(tǒng)介質(zhì)超壓時(shí)破裂并釋放壓力,保護(hù)系統(tǒng)設(shè)備及操作人員的生命安全。爆破片是爆破片裝置中的重要元件,在設(shè)定壓力和溫度下準(zhǔn)確爆破,是其能否起到保護(hù)作用的關(guān)鍵,也是人們一直以來關(guān)注的焦點(diǎn)。 全文主要圍繞爆破片的爆破壓力及其性能展開,采用了解析法、有限元模擬計(jì)算法和實(shí)驗(yàn)對(duì)比法進(jìn)行研究。有限元法采用了ANSYS Workbench和Dynaform軟件。 論文初始介紹了常用爆破片的基本類型和結(jié)構(gòu)特點(diǎn),以及市場(chǎng)上新出現(xiàn)的爆破片。在此基礎(chǔ)上,根據(jù)前人的研究成果和常用的正拱形爆破片爆破壓力計(jì)算公式,采用已有的理論推導(dǎo)出了一種新的爆破壓力計(jì)算公式,并對(duì)其應(yīng)用誤差進(jìn)行了分析；研究了影響爆破片爆破壓力的各種因素,如材料、幾何尺寸、加工工藝、安裝操作及其它因素等,并使用有限元軟件Dynaform模擬了加工成形速度對(duì)爆破壓力的影響,為實(shí)際生產(chǎn)提供了可靠的依據(jù)；針對(duì)實(shí)際應(yīng)用中,爆破片在放置過程中出現(xiàn)的應(yīng)變時(shí)效問題,采用了人工時(shí)效的方法,加速爆破片時(shí)效作用的過程,穩(wěn)定爆破片的爆破壓力,并給出了合適的溫度和時(shí)間；利用有限元分析軟件ANSYS Workbench,模擬分析了正拱帶環(huán)槽型爆破片的性能,指出了影響其性能的關(guān)鍵因素。
[Abstract]:Explosive disc device is a kind of safety accessories commonly used in pressure vessels, pipes and all kinds of pressure-bearing equipment. It can break and release pressure when the system medium is overpressure, and protect the life and safety of system equipment and operators. Blasting disc is an important component in explosive disc device. Accurate blasting at setting pressure and temperature is the key to whether it can play a protective role, and it has always been the focus of attention. In this paper, the blasting pressure and its performance of the blasting disc are mainly carried out, and the analytical method, the finite element simulation method and the experimental comparison method are used to study the blasting pressure and its performance. ANSYS Workbench and Dynaform software are used in the finite element method. In this paper, the basic types and structural characteristics of commonly used blaster are introduced, as well as the new blaster in the market. On this basis, according to the previous research results and the commonly used formula for calculating the blasting pressure of positive arch blasting disc, a new formula for calculating blasting pressure is derived by using the existing theory, and its application error is analyzed. Various factors affecting blasting pressure of blasting sheet, such as material, geometric size, processing technology, installation operation and other factors, are studied, and the influence of machining forming speed on blasting pressure is simulated by finite element software Dynaform. It provides a reliable basis for actual production. In order to solve the problem of strain aging in the process of placing blasting pieces in practical application, the method of artificial aging is adopted to accelerate the aging process of blasting pieces, stabilize the blasting pressure of blasting pieces, and give the appropriate temperature and time. The performance of circular slot blasting disc with positive arch belt is simulated and analyzed by using finite element analysis software ANSYS Workbench, and the key factors affecting its performance are pointed out.
【學(xué)位授予單位】：西北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH49

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