摘要:
A method for transferring heat between a first fluid and a second fluid includes providing a tubeless heat exchanger having a tubeless heat exchanger core, the tubeless heat exchanger core having an inner casing and an outer casing disposed around the inner casing, the inner and outer casings defining therebetween a flow passage for a thermal transfer fluid to flow, the tubeless heat exchanger core having a core inlet arranged to receive the first fluid and a core outlet arranged to provide the first fluid, the core inlet and core outlet being fluidically connected to the flow passage, and at least one of the core inlet and core outlet being disposed on the inner casing, wherein each of the outer casing and the inner casing has an inner surface and an outer surface, wherein the respective inner surfaces face each other and define therebetween the flow passage for the first fluid to flow from the core inlet to the core outlet and wherein at least a portion of the respective outer surfaces are arranged to be contacted by the second fluid, and providing the first fluid into the core inlet to transfer heat between the first fluid and the second fluid through at least a portion of both the inner and outer casings. In some embodiments, the first fluid may be a thermal transfer fluid, the second fluid may be a production fluid, and the production fluid may be held in a vessel, such as a pressure vessel.
摘要:
A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.
摘要:
According to an aspect of the present invention, a method of tube plug installation in a heat exchanger or pressure vessel is provided. The method includes verifying the suitability of a selected tube plug with a specifically identified type of heat exchanger or pressure vessel before installation of the selected tube plug. The step of verifying being performed with a device having an app, software, or user interface and after having entered or accessed data concerning the selected tube plug and entering or accessing data concerning the specifically identified type of heat exchanger or pressure vessel and operating parameters of the specifically identified type of heat exchanger or pressure vessel.
摘要:
A method for assembling a fuel cell humidifier can include steps of providing a first humidifier plate and a humidifier membrane. The first humidifier plate can have a first top plate surface. The humidifier membrane can have a bottom membrane surface. The bottom membrane surface of the humidifier membrane can be disposed on the first top plate surface of the first humidifier plate. The first humidifier plate can be partially melted. This can permit the first top plate surface of the first humidifier plate to permeate into the bottom membrane surface of the humidifier membrane. The first humidifier plate can be cooled, which can fuse the first top plate surface of the first humidifier plate with the bottom membrane surface of the humidifier membrane.
摘要:
Heat transfer tube support structure manufacturing method of a nuclear power steam generator, a roll form and the first planarization step the base material by unscrewing from the roll flattening by a rolling device, the length is set based on the base material over the first flattening step in a rectangular shape and a cutting step of cutting a longer, a second planarization step is to cross-section flattened by the rough base material cutting step of the arc-shaped in a rolling device, the secure the base to the plate at one side to form a coarse base material and the same surface a second planarization step and a step of fixing, when a plurality of machined holes which are spaced apart from one side of the base material by a distance toward a predetermined side to the other to form the upper surface of a base material machined with a punching tool in a direction and being spaced at set intervals based on the front and rear ends of the base material punched hole and it shifted to each other to form, and the punching step for cutting the both ends of the base material by a predetermined length, burrs an error range based on the end surface of the base material of the base material lower surface rough punching step of removing processed within 0 mm to 0.2 mm and a deburring step, and the third planarization step of planarizing by a tough base material the deburring step the rolling device, the third washing to remove impurities to a rough base leveling step using any one of washing water or air, and washed heat transfer tube support structure of a nuclear steam generator comprising a packing step for packing for shipment to the rough base material a step to the preparation method.
摘要:
A header for a heat exchanger includes a first and a second cylindrical portion. The first cylindrical portion has a first diameter, and extends over a first length portion of the header. The second cylindrical portion has a second diameter that is smaller than the first diameter, and extends over a second length portion of the header. Tube receiving slots are arranged along the first length portion. An end cap is received into an open end of the first cylindrical portion, and is joined thereto to seal a first end of the header. An open end of the second cylindrical portion is arranged at a second end of the header opposite the first end to allow for fluid flow into or out of the header. A circumferential bead is located between the first and second cylindrical portions, and extends radially outward of the first cylindrical portion.
摘要:
An original plate material for a heat-exchanging plate fabricated by press working and a method for fabricating the original plate material are provided. An original plate material for a heat-exchanging plate is a flat plate material made of titanium on the surface of which convex parts and concave parts are formed, and the heat-exchanging plate is fabricated by press working the original plate material. The convex parts and the concave parts are formed in a manner such that the shape parameter defined by (Rz×L/P) is 12 μm or less, where Rz (μm) denotes the height of the convex parts, L (μm) denotes the width of the concave parts, and P (μm) denotes the pitch between neighboring convex parts.
摘要:
An apparatus is disclosed including: a trough shaped reflector extending along a longitudinal axis and including at least one reflective surface having a shape which substantially corresponds to an edge ray involute of the absorber.
摘要:
A method of making a lightweight heat pipe includes steps of: a) preparing a first hollow pipe and a second hollow pipe making of two different materials; b) disposing the first hollow pipe into the second hollow pipe along an axial direction of the second hollow pipe; c) making an inner wall surface of the second hollow pipe attached on an outer wall surface of the first hollow pipe to combine the first and the second hollow pipes as a pipe body of the heat pipe; and d) vacuuming an inner space of the first hollow pipe, and sealing the pipe body after working fluid is filled in the inner space of the first hollow pipe to finish the heat pipe.
摘要:
A method for forming an end plate for a heat exchanger and a heat exchanger formed by this method are provided. The endplate is formed by preparing a concave die including a groove bottom surface and a pair of groove wall surfaces extending from both ends in the width direction of the groove bottom surface; preparing a convex die including a convex top surface facing the groove bottom surface of the concave die, convex wall surfaces facing the groove wall surfaces of the concave die, and protrusions provided along both sides in the width direction of the convex top surface; and inserting a plate member between the concave die and the convex die.