本文關(guān)鍵詞： 膜片式安全閥 膜片 大變形 油罐 刺破裝置　出處：《中國礦業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：固定頂油罐膜片式安全閥是一種能夠適應油罐內(nèi)壓力變化的油罐內(nèi)外氣壓平衡安全裝置。本文綜合考慮固定頂儲油罐使用過程中可能導致油罐油氣空間壓力變化的各種因素,結(jié)合國內(nèi)外呼吸閥、爆破片產(chǎn)品的設(shè)計方法和研究思路,運用性能需求分析、可行性探討、理論分析、實驗分析、虛擬樣機仿真和物理樣機試驗的方法,設(shè)計和優(yōu)化了膜片式安全閥的結(jié)構(gòu),分析了其核心部件—膜片的性能,并進行樣機的試制和改進。工作主要從以下幾個方面展開:(1)研究了儲油罐在實際使用中影響油罐安全的因素,明確了膜片式安全閥的性能需求和設(shè)計目標;綜合比較目前的超壓泄放裝置,選擇了鋁薄片和橡膠薄片作為備選膜片,通過改進和創(chuàng)新,確定了的裝置結(jié)構(gòu)方案。(2)基于大變形理論和疲勞壽命理論,采用有限元軟件ANSYS,通過對比分析建立合理的膜片數(shù)值模擬模型,分析了膜片式安全閥的核心元件—膜片的力學性能,獲得鋁膜片和橡膠膜片的壓力—中心點位移曲線和疲勞壽命理論數(shù)據(jù),得出了橡膠膜片較鋁膜片具有受壓變形量大、耐疲勞性好的結(jié)論。(3)搭建膜片受壓變形測試試驗臺,分別測量不同厚度的鋁膜片、普通橡膠膜片、經(jīng)模擬使用環(huán)境處理后的橡膠膜片等三種類型膜片受壓后的中心點位移。通過分析膜片的受壓變形情況及環(huán)境適應能力,選擇了0.4mm厚度橡膠膜片作為膜片式安全閥的膜片。(4)為提高膜片式安全閥工作可靠性,改進了膜片式安全閥的刺破裝置�；赑ro/E建立其三維模型,通過干涉檢查,驗證結(jié)構(gòu)設(shè)計。最后試制膜片式安全閥物理樣機,并進行實驗室階段的調(diào)試。
[Abstract]:The diaphragm safety valve of fixed top oil tank is a kind of pressure balance safety device inside and outside oil tank, which can adapt to the change of pressure inside and outside of oil tank. This paper synthetically considers that the change of oil and gas space pressure of oil tank may be caused by the use of fixed top oil storage tank. Of all sorts of factors. Combined with the domestic and foreign breathing valve, blasting disc product design methods and research ideas, the use of performance requirements analysis, feasibility discussion, theoretical analysis, experimental analysis, virtual prototype simulation and physical prototype test methods. The structure of diaphragm safety valve is designed and optimized, and the performance of diaphragm is analyzed. The main work of this paper is to study the factors that affect the safety of the oil tank in practical use from the following aspects: 1. The performance requirements and design objectives of diaphragm safety valve are clarified. Compared with the current overpressure release device, aluminum sheet and rubber sheet are selected as alternative diaphragm. Through improvement and innovation, the structure scheme of the device is determined based on large deformation theory and fatigue life theory. The finite element software ANSYSis is used to establish a reasonable numerical simulation model of diaphragm, and the mechanical properties of diaphragm, the core component of diaphragm safety valve, are analyzed. The stress-center point displacement curve and fatigue life theory data of aluminum film and rubber diaphragm are obtained. It is concluded that rubber membrane has more compression deformation than aluminum film. Conclusion of good fatigue resistance. (3) set up the diaphragm compression deformation test bench, measure the different thickness of aluminum film, ordinary rubber diaphragm. The center displacement of three types of diaphragm, such as rubber diaphragm, was simulated after environmental treatment. The compression deformation of the diaphragm and its adaptability to the environment were analyzed. In order to improve the working reliability of diaphragm safety valve, 0.4 mm thick rubber diaphragm was selected as diaphragm of diaphragm safety valve. The piercing device of diaphragm safety valve is improved. The three-dimensional model is established based on Pro/E, and the structure design is verified by interference inspection. Finally, the physical prototype of diaphragm safety valve is produced. And carry on the debugging of the laboratory stage.
【學位授予單位】：中國礦業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE972

【參考文獻】

相關(guān)期刊論文 前6條

1 龍志勤;王志剛;;基于ANSYS的壓力容器應力分析[J];裝備制造技術(shù);2010年12期

2 喬楨遴;機械呼吸閥使用與保養(yǎng)[J];閥門;1996年04期

3 白新理,楊開云,王文媛,趙新銘;不可壓縮超彈性材料大變形接觸分析[J];四川大學學報(工程科學版);2001年01期

4 姚正順;薄膜式呼吸閥的研制[J];石油商技;1996年06期

5 孫偉,王文權(quán);拱頂油罐抽癟原因及預防措施[J];油氣儲運;2002年10期

6 高松竹;唐俊鋒;趙書忠;許萍;;全天候磁力呼吸閥[J];石油庫與加油站;2012年01期

相關(guān)碩士學位論文 前1條

1 閆照鋒;金屬爆破片爆破性能及影響因素數(shù)值研究[D];大連理工大學;2012年

，

本文編號：1459833