MVME177-011工控自動(dòng)化卡件
如果儲罐系統或其任何部分、操作或實(shí)踐不存在導致泄漏的緊迫危險，但檢查表明存在故障或年久失修，并且除非采取措施，否則很可能發(fā)生泄漏或泄漏，則必須修改或停止操作或實(shí)踐，或在90天內維修或更換設備，停止使用或暫時(shí)關(guān)閉。此類(lèi)設備失修的例子包括但不限于具有侵蝕或鼠害的二級防護堤、具有裂縫的轉運站襯墊、用于防止暴露在環(huán)境中引起的腐蝕的涂層缺陷、故障泄漏監測設備、，以及陰極保護系統，其不能提供防止腐蝕所需的電流。油箱襯里。 儲罐襯里必須與儲存的物質(zhì)兼容。 儲罐可按照見(jiàn)本部分第598.1[j]節）或國家認可協(xié)會(huì )或獨立測試實(shí)驗室制定的同等共識規范、標準或慣例進(jìn)行內襯。6 NYCRR第598部分–碳鋼儲罐的內襯必須在噴砂和內表面清潔后不遲于8小時(shí)內使用，或根據國家認可協(xié)會(huì )或獨立測試實(shí)驗室制定的一致規范、實(shí)踐或標準使用。不得存在可見(jiàn)的鐵銹、水分或異物。 所有襯里必須具有足夠的厚度、密度和強度，以形成不會(huì )開(kāi)裂、軟化、剝落或與內表面分離的不透水外殼。涂層必須與設備保持永久粘結。 襯里的熱膨脹系數必須與所應用的設備兼容，以使溫度變化引起的應力不會(huì )對襯里的穩定性造成損害。襯里材料必須嚴格按照制造商的規范進(jìn)行涂覆和固化。 必須檢查襯里是否有氣泡和氣穴，并對針孔進(jìn)行電氣測試。必須使用Elcometer測厚儀或等效方法檢查襯里的厚度，并使用Barcol硬度計或等效方法進(jìn)行硬度檢查，以確保符合制造商的規范。任何缺陷都必須修復。內襯安裝日期、儲罐狀況、安裝方法和其他相關(guān)信息必須在儲罐系統壽命期內保存在防泄漏報告中。 儲罐系統的防腐。到1999年12月22日，所有地面系統的外露外表面必須進(jìn)行防腐處理。必須采用以下一種或多種方法進(jìn)行保護：不銹鋼或蒙乃爾合金等耐腐蝕設備材料；非金屬覆層、煤焦油基環(huán)氧涂層或最小完成厚度為10密耳（0.01英寸）的類(lèi)似涂層； 油漆，包括一層防銹底漆、中間防銹漆和兩層或兩層以上最終涂層，涂敷在適當處理的表面或本篇第599.8（節和第599.13節進(jìn)一步規定的同等或更好的表面涂層上；或（4）根據國家認可協(xié)會(huì )或獨立測試實(shí)驗室的一致規范、標準或實(shí)踐設計和安裝的同等或更好的表面涂層或防腐系統。
If the tank system or any part of it, operation or practice does not have an imminent danger of causing leakage, but inspection shows that there is a fault or long disrepair, and unless measures are taken, leakage or leakage is likely to occur, the operation or practice must be modified or stopped, or the equipment must be repaired or replaced, stopped or temporarily closed within 90 days. Examples of such equipment in disrepair include, but are not limited to, secondary protective dikes with erosion or rodent damage, transfer station liners with cracks, coating defects used to prevent corrosion caused by exposure to the environment, fault leakage monitoring equipment, and cathodic protection systems that cannot provide the current required to prevent corrosion. Tank lining. The tank lining must be compatible with the stored material. Tanks may be lined in accordance with 598.1 [j] of this part) or equivalent consensus codes, standards or practices established by the National Accreditation Society or independent testing laboratories. 6 NYCRR Part 598 - The lining of carbon steel tanks must be used not later than 8 hours after blasting and cleaning of the internal surfaces, or in accordance with consistent codes, practices or standards established by the National Accreditation Society or independent testing laboratories. There shall be no visible rust, moisture or foreign matter. All linings must be of sufficient thickness, density and strength to form an impermeable enclosure that will not crack, soften, flake or separate from the inner surface. The coating must remain permanently bonded to the equipment. The thermal expansion coefficient of the lining must be compatible with the applied equipment, so that the stress caused by temperature change will not damage the stability of the lining. The lining material must be applied and cured in strict accordance with the manufacturer's specifications. The lining must be checked for bubbles and cavitation, and the pinholes must be electrically tested. The thickness of the lining must be checked with an Elcometer thickness gauge or equivalent method, and the hardness must be checked with a Barcol hardness tester or equivalent method to ensure compliance with the manufacturer's specifications. Any defects must be repaired. Lining installation date, tank condition, installation method and other relevant information must be kept in the leakage prevention report during the life of the tank system. Corrosion protection of storage tank system. By December 22, 1999, the exposed external surfaces of all ground systems must be subject to anti-corrosion treatment. One or more of the following methods must be used for protection: stainless steel or monel alloy and other corrosion-resistant equipment materials; Non metallic coating, coal tar based epoxy coating or similar coating with a minimum finished thickness of 10 mils (0.01 inch); Paint, consisting of one coat of antirust primer, intermediate antirust paint, and two or more final coats, applied to properly prepared surfaces or to equivalent or better surface coatings as further specified in 599.8 (and 599.13) of this title; or (4) equivalent or better surface coatings or corrosion protection systems designed and installed in accordance with consistent codes, standards, or practices of nationally recognized societies or independent testing laboratories.
