JP2013155892A5

JP2013155892A5 -

Info

Publication number: JP2013155892A5
Application number: JP2012014875A
Authority: JP
Filing date: 2012-01-27
Publication date: 2014-08-21
Anticipated expiration: 2032-01-27

Description

本発明に係る熱交換器は、アルミニウムまたはアルミニウム合金で形成された伝熱管と、前記伝熱管から流出する冷媒または前記伝熱管へ流入する冷媒が通る接続配管と、を備え、前記接続配管は、ガス冷媒が通るガス配管と、液冷媒または気液二相冷媒が通る液配管と、を有し、前記ガス配管及び前記液配管は、アルミニウムまたはアルミニウム合金で形成された第１の冷媒配管と、銅または銅合金で形成された第２の冷媒配管とをそれぞれ有し、これら第１の冷媒配管と第２の冷媒配管とが接続されて構成され、前記第１の冷媒配管には、前記伝熱管に接続されて、前記伝熱管から下方に延びる延長部が形成されており、前記第１の冷媒配管と前記第２の冷媒配管との接続部は、前記第１の冷媒配管の前記延長部にそれぞれ配置され、前記接続配管は断熱材で覆われており、前記断熱材で覆われた前記第１の冷媒配管には防食処理が施されているものである。 A heat exchanger according to the present invention includes a heat transfer tube formed of aluminum or an aluminum alloy, and a connection pipe through which a refrigerant flowing out of the heat transfer pipe or a refrigerant flowing into the heat transfer pipe passes, A gas pipe through which a gas refrigerant passes, and a liquid pipe through which a liquid refrigerant or a gas-liquid two-phase refrigerant passes, wherein the gas pipe and the liquid pipe are formed of a first refrigerant pipe made of aluminum or an aluminum alloy; A second refrigerant pipe formed of copper or a copper alloy, and the first refrigerant pipe and the second refrigerant pipe are connected to each other. An extension portion connected to the heat pipe and extending downward from the heat transfer pipe is formed, and the connection portion between the first refrigerant pipe and the second refrigerant pipe is the extension portion of the first refrigerant pipe. Each placed in front Connecting pipe is covered with a heat insulating material, wherein the first refrigerant pipe covered with heat insulating material in which anticorrosive treatment is applied.

本発明に係る熱交換器においては、接続配管のガス配管と液配管における第１の冷媒配管（アルミニウムまたはアルミニウム合金で形成された冷媒配管）と第２の冷媒配管（銅または銅合金で形成された冷媒配管）との接続部が、第１の冷媒配管の延長部に配置されている。そして、接続配管は断熱材で覆われ、断熱材で覆われた第１の冷媒配管（アルミニウムまたはアルミニウム合金で形成された冷媒配管）に防食処理を施してある。このため、断熱材に覆われた接続配管に結露が発生し、断熱材と接続配管間の微小な隙間に結露水が滞在した場合でも、第１の冷媒配管（アルミニウムまたはアルミニウム合金で形成された冷媒配管）の腐食の進行を抑制することができ、長寿命の熱交換器を得ることができる。 In the heat exchanger according to the present invention, the first refrigerant pipe (refrigerant pipe formed of aluminum or aluminum alloy) and the second refrigerant pipe (copper or copper alloy) in the gas pipe and liquid pipe of the connection pipe. The connection part with the refrigerant pipe) is arranged in the extension part of the first refrigerant pipe. The connection pipe is covered with a heat insulating material, and the first refrigerant pipe (the refrigerant pipe formed of aluminum or aluminum alloy) covered with the heat insulating material is subjected to anticorrosion treatment. For this reason, even if dew condensation occurs in the connection pipe covered with the heat insulating material and the dew condensation water stays in a minute gap between the heat insulating material and the connection pipe, the first refrigerant pipe (formed of aluminum or aluminum alloy) The progress of the corrosion of the refrigerant pipe) can be suppressed, and a long-life heat exchanger can be obtained.

すなわち、接続部３７，４７は、下部曲線部３６，４６よりも上方の延長部３３，４３の直線部３５，４５に配置されている。
なお、本実施形態では延長部３３，４３を略垂直方向に配置したが、延長部３３，４３は斜めに配置しても勿論よい。 That is, the connecting portions 37 and 47 are disposed on the straight portions 35 and 45 of the extending portions 33 and 43 above the lower curved portions 36 and 46.
In the present embodiment, the extension portions 33 and 43 are arranged in a substantially vertical direction, but the extension portions 33 and 43 may be arranged obliquely.

１筐体、２吸込口、２ａフィルター、３吹出口、４風向調整機構、５送風機、８再熱除湿用減圧装置、１０室内熱交換器、１０ａ，１０ｂ熱交換器、１１フィン、１２伝熱管（円管）、１５フィン、１６伝熱管（扁平管）、２０接続配管、２９，３９，４９，５１フレアナット接続部、３０ガス配管、３１，４１アルミニウム配管（第１の冷媒配管）、３２，４２銅配管（第２の冷媒配管）、３３，４３延長部、３４，４４上部曲線部、３５，４５直線部、３６，４６下部曲線部、３７，４７接続部、４０液配管、５０延長配管、６０断熱材、７０微小な空間、１００室内機、１０１室外機、１１０空調空間、１１１壁、１１２穴部。 DESCRIPTION OF SYMBOLS 1 Housing | casing, 2 suction inlet, 2a filter, 3 blower outlet, 4 wind direction adjustment mechanism, 5 air blower, 8 decompression device for reheat dehumidification, 10 indoor heat exchanger, 10a, 10b heat exchanger, 11 fin, 12 heat exchanger tube (Circular pipe), 15 fins, 16 heat transfer pipes (flat pipes), 20 connection pipes, 29, 39, 49, 51 flare nut connection parts, 30 gas pipes, 31, 41 aluminum pipes (first refrigerant pipes), 32 , 42 Copper piping (second refrigerant piping), 33, 43 extension , 34, 44 Upper curve portion, 35, 45 Straight portion, 36, 46 Lower curve portion, 37, 47 Connection portion, 40 liquid piping, 50 Extension Piping, 60 heat insulating material, 70 minute space, 100 indoor unit, 101 outdoor unit, 110 air-conditioned space, 111 wall, 112 hole.

Claims

A heat transfer tube formed of aluminum or an aluminum alloy;
A connection pipe through which the refrigerant flowing out of the heat transfer pipe or the refrigerant flowing into the heat transfer pipe passes,
The connection pipe has a gas pipe through which a gas refrigerant passes, and a liquid pipe through which a liquid refrigerant or a gas-liquid two-phase refrigerant passes,
The gas pipe and the liquid pipe each include a first refrigerant pipe formed of aluminum or an aluminum alloy and a second refrigerant pipe formed of copper or a copper alloy, and the first refrigerant pipe and The second refrigerant pipe is connected and configured,
The first refrigerant pipe is connected to the heat transfer tube and has an extension extending downward from the heat transfer tube,
Connection portions between the first refrigerant pipe and the second refrigerant pipe are respectively disposed in the extension portions of the first refrigerant pipe, the connection pipe is covered with a heat insulating material, and the heat insulating material An anti-corrosion treatment is applied to the covered first refrigerant pipe.

The gas pipe and the liquid pipe are provided with a curved portion at a lower portion of the extension portion of a first refrigerant pipe, and the connecting portion is disposed above the curved portion. The heat exchanger according to claim 1.

The heat exchanger according to claim 1 or 2, wherein the connection part of the gas pipe and the connection part of the liquid pipe are arranged at the same height.

An air conditioner comprising the heat exchanger according to any one of claims 1 to 3.