Apparatus for controlling the flow of a process fluid into a process vessel
First Claim
1. Apparatus for controlling the flow of a process fluid into a process vessel, comprising:
- a) a process vessel having an inlet for receiving a process fluid and an outlet for exhausting process fluid into the atmosphere should the pressure within said process vessel exceed a preset limit,b) a pneumatic safety device positioned within said inlet for shutting down the flow of process fluid into said process vessel when actuated pneumatically,c) a pressure-relieving device positioned within said outlet for exhausting process fluid from said process vessel into the atmosphere when the pressure within said process vessel exceeds said preset limit as established by a burst pressure level of said pressure-relieving device, andd) a pneumatic control link connecting said pressure-relieving device to said pneumatic safety device, said pneumatic control link actuating said pneumatic safety device to shut-down the flow of process fluid into said process vessel in response to the exhausting of said process fluid through said outlet into the atmosphere.
1 Assignment
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Accused Products
Abstract
A process vessel has an inlet for receiving a process fluid and an outlet for exhausting process fluid into the atmosphere should the pressure within the vessel exceed a preset limit. A pneumatic safety device positioned within such inlet shuts down the flow of process fluid into the process vessel when actuated pneumatically. A pressure-relieving device positioned within such outlet exhausts process gas into the atmosphere when the pressure within the process vessel exceeds the preset limit as established by the burst pressure level of the pressure relieving device. A pneumatic control link connects the pressure-relieving device to the pneumatic safety device. Such control link actuates the pneumatic safety device to shut-down the flow of process fluid into the process vessel in response to the exhausting of process fluid from the process vessel into the atmosphere.
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Citations
12 Claims
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1. Apparatus for controlling the flow of a process fluid into a process vessel, comprising:
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a) a process vessel having an inlet for receiving a process fluid and an outlet for exhausting process fluid into the atmosphere should the pressure within said process vessel exceed a preset limit, b) a pneumatic safety device positioned within said inlet for shutting down the flow of process fluid into said process vessel when actuated pneumatically, c) a pressure-relieving device positioned within said outlet for exhausting process fluid from said process vessel into the atmosphere when the pressure within said process vessel exceeds said preset limit as established by a burst pressure level of said pressure-relieving device, and d) a pneumatic control link connecting said pressure-relieving device to said pneumatic safety device, said pneumatic control link actuating said pneumatic safety device to shut-down the flow of process fluid into said process vessel in response to the exhausting of said process fluid through said outlet into the atmosphere. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification