爆破片的應(yīng)用（中英文）
使用單個安全裝置時（主力情況）
When using single safety device;(Primary Case)
當使用爆破片作為唯一安全裝置時，ASME 規(guī)范應(yīng)設(shè)定為低于最大允許工作壓力 (MAWP)，且其尺寸應(yīng)能夠防止壓力升高超過 10% 或超過 3psi。
ASME CODE shall be set as lower than MAWP when a Rupture Disc is used as an only safety device, and it should be the size that can prevent increase of pressure over 10% or over 3psi.
使用兩個或兩個以上安全裝置時（二級情況）
When using single more than two safety devices;(Secondary Case)
使用多個安全裝置時，只需將一個安全裝置的壓力設(shè)置為低于最大允許工作壓力 (MAWP)。除火災(zāi)情況外，其余安全裝置的設(shè)定壓力不得超過最大允許工作壓力 (MAWP) 的 105%。
壓力容器的尺寸應(yīng)能夠防止壓力升高超過最大允許工作壓力 (MAWP) 的 16% 或 4psi。
When multiple devices are used, only one safety device needs to be set to have lower pressure than MAWP. The pressure set for the rest of safety devices cannot exceed 105% of MAWP except FIRE CASE.
Pressure container shall have the size that can prevent increase more than 16% of MAWP or 4psi.
與安全閥組合使用時；（組合情況）
In case of the combination with safety valve;(Combination Case)
在保證足夠泄放能力的情況下，可在安全閥與工藝裝置或安全閥出口之間安裝爆破片裝置。該裝置可防止壓力安全閥泄漏，并保護安全閥免受腐蝕。當爆破片裝置安裝在入口側(cè)時，實際泄放能力應(yīng)為安全閥標定泄放能力的90%（在相同條件下進行測試時，實際泄放能力視為合格）。
當爆破片裝置與安全閥組合使用時，爆破片的破裂不應(yīng)影響安全閥的功能，并且安全閥與爆破片之間應(yīng)留有足夠的間隙，或應(yīng)安裝壓力檢測裝置（壓力表、過流V/V或壓力開關(guān)）。
Rupture Disc device can be installed between safety valve and process or exit of safety valve when sufficient discharge capacity is guaranteed. It prevents leakage through pressure safety valve and protects safety valves from corrosions. When it is installed at the entrance side, the actual discharge capacity is considered as 90% of the discharge capacity marked at the safety valve (When it is tested under the same conditions, the actual capacity is acknowledged).
When it is combined with safety valve, the rupture of the Rupture Disc shall not interfere the function of safety valve, and there should be enough space between safety valve and Rupture Disc or a device that can detect pressure (manometer-pressure gauge, Excess Flow V/V, or Pressure Switch).
當其用作防止外部火災(zāi)的安全裝置時（外部火災(zāi)情況）
When it is used as a safety device against external fire;(External Fire Case)
如果存在火災(zāi)或意外的外部熱源等其他危險因素，則應(yīng)配備額外的泄壓裝置以防止壓力過高。在這種情況下，泄壓裝置應(yīng)具有足夠的泄壓能力，以防止壓力升高超過最大允許工作壓力 (MAWP) 的 21%。設(shè)定壓力不得超過最大允許工作壓力 (MAWP) 的 110%。
當未連接永久供氣接口的壓縮液化氣體在室溫下儲存時，泄壓裝置應(yīng)能夠保護壓力容器免受火災(zāi)等外部熱源的影響，并且泄壓裝置應(yīng)能夠防止壓力升高超過最大允許工作壓力 (MAWP) 的 20%。
If there are additional hazardous elements such as fire or unexpected external heat, there should be additional pressure discharge device to protect from the exceeding pressure. In this case, it should have sufficient discharge not to increase pressure over 21% of MAWP. Set pressure shall not exceed 110% of MAWP.
When compressed liquid gas without permanent supply connection is stored in room temperature, it should be able to protect pressure container from external heat sources including fire and the pressure discharge device should be able to prevent pressure increase over 20% of MAWP.
※ MAWP（最大允許工作壓力或設(shè)計壓力）：不影響容器原有性能的最大壓力。常壓下為最大壓力，真空下為最小壓力。
MAWP (Maximum Allowable Working Pressure or Design Pressure): maximum pressure that the original performance of the container is not affected. Under normal pressure, it means maximum pressure, while it means minimum pressure in vacuum.
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