Heat exchanger pressure shutoff valve
OwnerJulian S. Taylorinventor
Life of this patent
Estimating the term…
Abstract
An excessive fluid pressure safety valve for a fluid processing heat exchanger transferring thermal energy to fluids in the heat exchanger by piping extending through the heat exchanger is formed by a valve, normally maintained open by a pressure responsive collapsible pin, interposed in the thermal energy conductor upstream from the heat exchanger. Fluid pressure above a predetermined value in a tube connecting the heat exchanger with the valve axially moves a piston in the valve toward and collapses the pin to close the valve.
Claims7
A normally open pressure responsive valve for interrupting thermal energy transfer to a fluid in a fluid processing heat exchanger having thermal energy piping means extending through the heat exchanger, comprising:
- an elongated valve body having a lateral bore and counterbore and having inlet and outlet ports forming a fluid passageway normal to the lateral bore and interposed in said piping;
- a valve seat intersecting the fluid passageway;
- valve bonnet means including a centrally bored and counterbored bonnet closing the body counterbore;
- valve means including a valve stem longitudinally slidable through the body and bonnet means bores for opening and closing the fluid passageway;
- a piston on said valve stem in the bonnet means counterbore,
- said bonnet means having a lateral bore communicating with the bonnet means counterbore between said piston and the inward limit of the counterbore;
- a tube connecting the bonnet means lateral bore with the upper limit of the heat exchanger;
- and,
- axially collapsible pin means normally maintaining said valve means in fluid passageway open position and closing said passageway in response to fluid pressure in the heat exchanger above a predetermined value moving said piston in a valve closing direction.
A normally open pressure responsive valve for interrupting thermal energy transfer to a fluid in a fluid processing heat exchanger having thermal energy piping means extending through the heat exchanger, comprising:
- an elongated valve body having inlet and outlet ports forming a fluid passageway interposed in said piping upstream from said heat exchanger,
- said body having a lateral through bore and a counterbore intersecting the fluid passageway;
- a valve seat intersecting the fluid passageway in axial alignment with the through bore;
- a centrally bored bonnet closing the body counterbore and having a counterbore opposite the body;
- valve means including a valve stem longitudinally slidable in the body and bonnet bores for opening and closing the fluid passageway;
- a piston on said valve stem in the bonnet means counterbore, said bonnet having a lateral bore communicating with the bonnet counterbore between said piston and the inward limit of the counterbore;
- a tube connecting the bonnet means lateral bore with the upper limit of the heat exchanger;
- a centrally bored cap closing the bonnet counterbore;
- and,
- axially collapsible pin means normally maintaining said valve means in fluid passageway open position and closing said passageway in response to fluid pressure in the heat exchanger above a predetermined value moving said piston and valve means in a fluid passageway closing direction.
Dependencies are inferred from the claim text.