摘要:
An integral drain assembly for a heat exchanger includes a plurality of passage walls defining a plurality of passages, each of the passage walls having a non-linear portion. Also included is a drain wall integrally formed with at least one of the passage walls to define a drain for each of the plurality of passages, the drain wall located proximate the non-linear portion of each of the plurality of passage walls.
摘要:
Two or more cores (2a, 2b) in each of which two more types of passage layers through which two or more fluids flow are layered alternately are welded together. The entire bottom portions of the cores (2a, 2b) are covered with a lower header tank (3), thereby making the fluids flow into the cores (2a, 2b). A dummy layer (14) through which none of the fluids flow is provided beside a weld side face of each core (2a, 2b). A weld spacer (18) is welded to the entire peripheral edge of a side plate (16) of the dummy layer (14). A through-hole (16a) for draining water in the dummy layer (14) is made near the lower end of the side plate of the dummy layer (14). Further, a liquid drain hole (20) through which water is drained is made at a lower corner of the weld spacer (18).
摘要:
A surface treatment method capable of imparting exceptional corrosion resistance and moisture resistance to an NB heat exchanger. The method includes subjecting an NB heat exchanger to a chemical conversion treatment to form a chemical conversion film on the surface thereof using a chemical conversion treatment agent that contains zirconium and/or titanium in a total amount of 5-5,000 ppm by weight, vanadium in an amount of 10-1,000 ppm by weight, and has a pH of 2-6; bringing the NB heat exchanger on whose surface the chemical conversion film is formed into contact with a hydrophilization agent containing a hydrophilic resin and a guanidine compound and/or a salt thereof; and baking the NB heat exchanger subjected to the contacting process, whereby a hydrophilic film is formed on the surface thereof.
摘要:
A heat exchanger is provided which is capable of rapidly moving condensed water downward. The heat exchanger may include a plurality of flat tubes forming a plurality of flow paths therein; and a fin located between the plurality of flat tubes to conduct heat. The fin may include at least one first fin portion located between the plurality of flat tubes; at least one first bent portion bent at the first fin portion so as to come into contact with a first one of the plurality of flat tubes; at least one second fin portion bent at the first bent portion, the second fin portion being opposite to the first fin portion and being located between the plurality of flat tubes; a flow space defined between the first fin portion and the second fin portion; at least one second bent portion bent at the second fin portion so as to come into contact with a second one of the plurality of flat tubes; at least one condensed water discharge hole formed by cutting at least one of the first bent portion or the second bent portion; and at least one condensed water discharge fin bent at the at least one of the first bent portion or the second bent portion.
摘要:
A gas-cooled heat exchanger, in particular a direct intercooler, for cooling of a fluid which flows through the heat exchanger, with a heat transfer block featuring a plurality of flow channels, with a first collection chamber and a second collection chamber. The collection chambers are fluidically connected with one another via the flow channels and the outside of the heat transfer block can be perfused by gas. In the direction of the perfusion, a screen is arranged in front of the heat transfer block for the prevention of flow in certain areas around the flow channels of the screen. One of the collection chambers features a vent for discharge of condensate of the fluid which can be sealed from or released into the surrounding area of the heat exchanger.
摘要:
A method for dispensing a milk-containing composition consisting of a flavour composition and a milk product by supplying the milk product to a removable heat exchanger provided with a flexible tube, wherein the flavour composition is added to the heated milk product in random order after the heat exchanger, cooling the milk product that remains in the heat exchanger after the latter has been emptied for the larger part by means of the heat exchanger after a specified period of time, calculated from the last time dispensing of the milk-containing composition took place, so that it will keep for a comparatively prolonged period of time, and subsequently heating the milk product for a next dispensing action and replenishing it with a next amount of milk product shortly before mixing it with the flavour composition, whereupon the hot milk-containing composition is discharged. The invention further relates to a heat exchanger obviously intended for use in this method.
摘要:
A heat exchanger for heat exchange between air and a heat exchange medium includes a plurality of heat transfer conduits arranged parallel to each other as flow paths for the heat exchange medium and a plurality of fin members. The fin members are configured to provide: an air inlet end for air inflow, an air outlet end for air outflow, and an air flow path. The air flow path connects the air inlet end with the air outlet end and allows a heat exchange with the plurality of heat transfer conduits. Each fin member includes a plurality of undulation troughs coplanar with each other and connected together so as to define a water condensate flow path. Each water condensate flow path has a flat bottom which extends from the air inlet end to the air outlet end.
摘要:
A drain pipe 54 includes an upper end portion 54a which is connected to a concave 38a of a leading end 38 of an exhaust tube 34, and a lower end portion 54b which is opened to the inside of a warm air furnace below the concave 38a. The lower end portion 54b is formed as a tubular portion where a membrane is formed at a plane orthogonal to an axis line 54d by a surface tension of a drain. A leading end 54e of the tubular portion is formed as an opening 54f with an area large enough such that the membrane is not generated by the surface tension of the drain.
摘要:
A manifold for a heat exchanger and a heat exchanger wherein the manifold includes: a pipe having an end portion; an end cover disposed at the end portion of the pipe and closing the end portion of the pipe to define an inner cavity in the pipe; and a discharge passage including: a first end opening into the inner cavity of the pipe, and a second end located at or adjacent to an end of the manifold and positioned at an outer peripheral surface of the manifold. The first end of the discharge passage is located on a side of the end cover facing the inner cavity of the pipe. According to embodiments of the disclosure, the stacking mounting of the heat exchangers in the axial direction of the manifold and the mounting of the heat exchanger with the end cover of the manifold contacting the ground can be achieved.
摘要:
A header for a heat exchanger and method for cleaning a heat exchanger in a loop without disconnecting loop components is provided. The header is in flow communication with the heat exchanger for distributing fluid through a plurality of adjacent channels. The header is connected between a main heat exchanger inlet nozzle and a channel flow distributor. A filter element is disposed within the header between the nozzle and channel flow distributor. Under normal operation, the filter element removes particulates and fouling material from the main flow stream before it enters the heat exchanger channels. During the cleaning process, fluid is injected on or through the filter element to remove particulates and fouling material through at least one outlet port. The header arrangement allows the filter element to be ‘cleaned in place’ without draining the system and disconnecting the heat exchanger or other components from the flow loop.