摘要:
The crosshead has a body formed of solid, metal plate, and of substantially U-shape. It comprises a pair of spaced-apart parallel limbs which are bridged between by an integral transverse member, and the latter is bored through to receive a piston rod therein. Shoe plates are joined to the limbs to guide the body in reciprocation. In the combination with a connecting rod assembly and a piston rod, an end of the piston rod is directly fastened to the connecting rod assembly, and the crosshead is coupled to an intermediate portion of the piston rod.
摘要:
The valve, depicted as of the plate-type, has a ported valve seat, stop plate, and valving element (movable between the plate and seat) biased toward the seat by compression springs. Eight sets of compression springs are employed, in the disclosed embodiment, and each set comprises a pair of helical, counterwound (compression) springs concentrically nested together.
摘要:
A closure device for monitoring leakage of a process fluid through a bore of a compressor casing is provided. The closure device may include a body configured to be detachably coupled with the compressor casing about the bore of the compressor. The body may define a fluid passage and a plurality of grooves. The plurality of grooves may be defined about an outer circumferential surface of the body and may be axially spaced from one another. The closure device may also include a plurality of seals at least partially disposed in respective grooves of the plurality of grooves. The plurality of seals may be configured to engage an inner surface of the compressor casing such that adjacent seals of the plurality of seals at least partially define an annular gap therebetween fluidly coupled with the fluid passage and configured to contain the leakage of the process fluid.
摘要:
A closure device for monitoring leakage of a process fluid through a bore of a compressor casing is provided. The closure device may include a body configured to be detachably coupled with the compressor casing about the bore of the compressor. The body may define a fluid passage and a plurality of grooves. The plurality of grooves may be defined about an outer circumferential surface of the body and may be axially spaced from one another. The closure device may also include a plurality of seals at least partially disposed in respective grooves of the plurality of grooves. The plurality of seals may be configured to engage an inner surface of the compressor casing such that adjacent seals of the plurality of seals at least partially define an annular gap therebetween fluidly coupled with the fluid passage and configured to contain the leakage of the process fluid.
摘要:
An elongated sleeve, externally threaded, is threadedly engaged with threaded bores in transverse walls formed in a straight cylinder of a gas compressor. A nut is secured to an intermediate portion of the sleeve, by means of a setscrew, and an end of the sleeve threadedly mounts a valve. The cylinder wall has an aperture formed therein to provide access for an open-end wrench, so that the wrench can work the nut to cause rotation of the nut and the sleeve, and move the valve outwardly or inwardly of the cylinder, as the valve is wholly confined within the cylinder at the frame-end thereof, and is otherwise inaccessible for movement.
摘要:
A body having a longitudinal axis, and parallel bearing surfaces at opposite axial ends thereof, has grooves formed therein, adjacent both axial ends thereof for receiving sealing rings therein. The body is interposed between fluid-control valves which are centrally supported, in spaced-apart disposition on a reciprocable rod, for abutting engagement thereof with the outermost peripheries of axial ends of the valves to support the valves and prevent bending moments from being exerted on the valves, and the grooves-receivable sealing rings offer enhanced fluid sealing over that carried by the valves themselves.
摘要:
In the depicted embodiment, the novel valve assembly comprises a pair of valving plates in which are formed separate, circular, and walled valving chambers. One plate is in surmounting relationship to the others, so that the valving chambers subsist in a plurality of tiers. All the chambers, however, are in given rows which are common to both tiers, and any one chamber, depending upon which tier it is in, either overlies or underlies a portion of another, adjacent chamber in the other tier. Consequently, a great through-flow volume of fluid is accommodated in a considerably compacted, overall valve assembly area. Notwithstanding such an integration of the valving chambers, no one thereof obstructs the fluid flow through any other thereof. Each of the chambers has its own inlet and outlet ports, valving element moveable therewithin, and spring for biasing the valving element in a given direction.
摘要:
In the embodiment shown, the valve has a seat and a stop plate with valving elements therebetween. The seat has pluralities of openings formed therein, and the stop plate has a central void. The valving elements move, to open or close off communication between the openings and the void, in response to pressured fluid. Each element controls fluid flow through a pair of openings. The valve seat has angularly-formed lands with which the elements, correspondingly angularly formed, nest to close off fluid communication through the valve.