摘要:
A heat exchanger includes a plate fin, a first flat tube intersecting with the plate fin, and a second flat tube opposed to a flat tube lower surface of the first flat tube, the second flat tube being spaced from the first flat tube and arranged so as to intersect with the plate fin. A flat tube windward lateral surface of the first and second flat tubes is located on an inner side of a peripheral edge of the plate fin, which includes an elevated portion formed between the first and second flat tubes and is located between a first imaginary plane, connecting the flat tube windward lateral surface of the first and second flat tubes, and a second imaginary plane, connecting a center of the flat tube lower surface of the first flat tube and a center of the flat tube upper surface of the second flat tube.
摘要:
A plate fin includes a slit structure formed by cutting and raising a portion of the plate fin to form an opening facing a flow direction of a fluid and a waffle structure formed by bending a portion of the plate fin to form a protrusion having an angle-shaped cross section which protrudes in a stack direction and having a ridge substantially perpendicular to the air flow direction, and the waffle structure is disposed on the upstream side on the plate fins with respect to the slit structure and a slant length L1 on the upstream side of the waffle structure is smaller than a slant length L2 on the downstream side of the waffle structure.
摘要:
Heat exchanger, for example for a motor vehicle air-conditioning circuit, comprising a plurality of tubes (12) for circulating a heat-transfer fluid, the ends of said tubes (12) opening into manifolds and reservoirs (11) of thermal storage material in contact with the tubes (12) so that the storage material and the heat-transfer fluid exchange heat with one another. The exchanger comprises a plurality of heat-exchange elements (4) each housing at least one reservoir (11) and at least one tube (12) which are nested.
摘要:
A chiller assembly shaped for use in a standard electronics rack. The chiller has a low profile, and is capable of being made to occupy less than 5 rack units. The chiller is modular, with subassemblies positioned to allow easy removal for maintenance. The fan and power supply are made as replaceable subassemblies that can be inserted or removed from the front of the unit without any special tools. The pump is made with a magnetically coupled motor, allowing the motor to be easily removed for service or replacement. The motor is also accessible from the front panel of the assembly.
摘要:
The invention relates to a heat exchanger (1), in particular for an over critical cooling circuit. Said heat exchanger comprises a block consisting of tubes (R) and ribs. A gaseous medium, in particular air, can flow over said ribs. A second medium, in particular a coolant, can flow through the tubes (R), which are arranged in at least four rows (1.1, 1.2, 1.3, 1.4, in particular in a cross-counter flow in relation to the gaseous medium.
摘要:
In a heat exchanger, a core portion includes a plurality of plate fins each shaped like a flat plate and a plurality of tubes in which a fluid flows and each of which is inserted into each of the plate fins to be mechanically bonded thereto. Further, an end portion in a longitudinal direction of each of the tubes is bonded to a header plate which constructs a part of a header tank. In this heat exchanger, the tube is bonded to the header plate in a solid phase. Therefore, the plate fins are mechanically bonded to the tube and the end portion of the tube in the longitudinal direction of the tube can be bonded to the header plate without a furnace of a high temperature.
摘要:
In a heat exchanger for cooling air, tubes are disposed vertically and header tanks are connected to the ends of the tubes. The lower side header tank is formed with drains, which are depressions, at positions between the tubes so that condensed water, which accumulates on the lower side header tank, drains away through the drains. Each of the drains has substantially a V-shaped cross-section to facilitate drainage of the water.
摘要:
The present invention provides a method of at least one of increasing airflow around a plurality of tubes in a heat exchanger, and increasing the web in a header around such plurality of tubes, wherein the method includes the steps of providing a predetermined plurality of tubes having a predetermined end configuration, and a header having a predetermined number of openings. The predetermined number of openings are configured in a predetermined staggered array corresponding to the predetermined plurality of tubes, disposed in a heat exchanger. Finally, the method secures an end of each predetermined plurality of tubes into the predetermined number of openings in said header.
摘要:
A heat exchanger including a core with tubes and ribs between tube plates, two collecting tanks on the tube plates, and closure caps, all produced from solder-coated aluminum. The core includes a plurality of alternating flat tubes and ribs between spaced tube plates. Each collecting tank has two longitudinal walls joined to the longitudinal connection edges of one of the tube plates. The closure caps close ends of the collecting tanks, and have an edge aligned substantially parallel to the collecting tank walls. The edges of the longitudinal walls of the collecting tanks are arranged between the longitudinal connection edges of the tube plates, with protrusions on the edges of the longitudinal walls inserted in openings in the tube plates. The transverse connection edges of the tube plates have a contour cut-out matching the closure cap profile to form a tight and strong solder bond with the closure caps.
摘要:
A heat exchanger includes a header (2) and a plurality of tubes (1) connected thereto. The header (2) includes an inner peripheral wall portion (10) having a generally flattened arc-shaped cross-sectional shape to which the tubes (1) are connected, an outer peripheral wall portion (1) having a generally semi-circular cross-sectional shape which faces to the inner peripheral wall portion (10) and connecting curved peripheral wall portions (12) connecting the inner peripheral wall portion (10) and the outer peripheral wall portion (11). The parameters of the hollow header (2), such as a radius of external curvature Ra of the inner peripheral wall portion (10), a radius of external curvature Rb of the connecting curved peripheral wall portion (12), and a radius of external curvature of the outer peripheral wall portion (11), fall within a specified range, thereby reducing the header capacity and weight while securing sufficient pressure resistance.