JP2000074577A - Spiral type heat exchanger - Google Patents
Spiral type heat exchangerInfo
- Publication number
- JP2000074577A JP2000074577A JP10250237A JP25023798A JP2000074577A JP 2000074577 A JP2000074577 A JP 2000074577A JP 10250237 A JP10250237 A JP 10250237A JP 25023798 A JP25023798 A JP 25023798A JP 2000074577 A JP2000074577 A JP 2000074577A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- fluid flow
- spiral
- outlet
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000012423 maintenance Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スパイラル式熱交
換器に関し、特に、空気抜き用のノズル及びドレン抜き
用のノズルを設ける必要がなく、構造が簡単なスパイラ
ル式熱交換器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral heat exchanger, and more particularly to a spiral heat exchanger having a simple structure without the necessity of providing an air vent nozzle and a drain vent nozzle.
【０００２】[0002]
【従来の技術】従来、高温流体と低温流体間で熱交換を
行う熱交換器として、熱交換のための温度差を最も効率
よく利用できる完全向流方式のスパイラル式熱交換器が
汎用されている。2. Description of the Related Art Conventionally, as a heat exchanger for performing heat exchange between a high-temperature fluid and a low-temperature fluid, a fully counter-current spiral heat exchanger that can use a temperature difference for heat exchange most efficiently has been widely used. I have.
【０００３】この完全向流方式のスパイラル式熱交換器
の一例を、図４〜図５に示す。この完全向流方式のスパ
イラル式熱交換器は、金属板を所要間隔をおいて鉛直軸
を中心としてスパイラル状に巻いて、２つのスパイラル
状の流体流路Ａ，Ｂを交互に形成するようにし、一方の
流体流路Ａの入口Ａ１を熱交換器本体１の下部平カバー
３の軸心に、出口Ａ２を熱交換器本体１の外周部のチャ
ンネル５の中間に形成するとともに、他方の流体流路Ｂ
の入口Ｂ１を熱交換器本体１の外周部のチャンネル６の
中間に、出口Ｂ２を熱交換器本体１の上部平カバー４の
軸心に形成するようにしている。FIGS. 4 and 5 show an example of this completely counter-current spiral heat exchanger. In this complete counterflow type spiral heat exchanger, two spiral fluid flow paths A and B are alternately formed by winding a metal plate in a spiral around a vertical axis at a required interval. The inlet A1 of one of the fluid flow paths A is formed at the axis of the lower flat cover 3 of the heat exchanger body 1, the outlet A2 is formed in the middle of the channel 5 on the outer peripheral portion of the heat exchanger body 1, and the other fluid is formed. Channel B
The inlet B1 is formed in the middle of the channel 6 on the outer peripheral portion of the heat exchanger body 1, and the outlet B2 is formed in the axis of the upper flat cover 4 of the heat exchanger body 1.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上記従来の
スパイラル式熱交換器において、熱交換器本体１の一方
の流体流路Ａは、熱交換器本体１の下部に形成した入口
Ａ１から導入した流体を、熱交換器本体１の外周部の中
間に形成した出口Ａ２から導出するようにしているた
め、組立時あるいはメンテナンス時に流体流路Ａ内に封
入された空気が、流体流路Ａ内に流体を流通させても、
出口Ａ２より上方の流体流路Ａ０に残留することとな
り、これを放置すると、この流体流路Ａ０の部分に流体
が流通せず、伝熱性能が著しく低下することとなる。こ
れを防止するため、従来のスパイラル式熱交換器におい
ては、熱交換器本体１の外周部の上部に、流体流路Ａ０
に連通する空気抜き用ノズルＮを設け、この空気抜き用
ノズルＮを介して、流体流路Ａ０に残留する空気を抜
き、流体が流体流路Ａ０の部分に流通するようにしてい
た。By the way, in the above-mentioned conventional spiral heat exchanger, one fluid passage A of the heat exchanger main body 1 is introduced from an inlet A1 formed at a lower portion of the heat exchanger main body 1. Since the fluid is drawn out from the outlet A2 formed in the middle of the outer peripheral portion of the heat exchanger body 1, the air sealed in the fluid flow path A at the time of assembly or maintenance is reduced into the fluid flow path A. Even if the fluid circulates,
If the fluid is left in the fluid flow path A0 above the outlet A2, the fluid will not flow through the fluid flow path A0, and the heat transfer performance will be significantly reduced. In order to prevent this, in the conventional spiral heat exchanger, a fluid flow path A0 is provided above the outer peripheral portion of the heat exchanger body 1.
Is provided, and air remaining in the fluid flow path A0 is evacuated through the air release nozzle N so that the fluid flows through the fluid flow path A0.
【０００５】また、他方の流体流路Ｂは、熱交換器本体
１の外周部の中間に形成した入口Ｂ１から導入した流体
を、熱交換器本体１の上部に形成した出口Ｂ２から導出
するようにしているため、メンテナンス時に流体流路Ｂ
内の流体を排出しようとしても、流体が入口ノズルＢ１
より下方の流体流路Ｂ０に残留することとなり、メンテ
ナンスを行う際の支障となる。これを防止するため、従
来のスパイラル式熱交換器においては、熱交換器本体１
の外周部の下部に、流体流路Ｂ０に連通するドレン抜き
用ノズルＤを設け、このドレン抜き用ノズルＤを介し
て、流路伝熱部Ｂ０に残留する流体を排出し、流体が流
体流路Ｂ０の部分に残留しないようにしていた。[0005] The other fluid flow path B allows the fluid introduced from an inlet B1 formed in the middle of the outer peripheral portion of the heat exchanger body 1 to be led out from an outlet B2 formed in the upper part of the heat exchanger body 1. Fluid channel B during maintenance.
When the fluid inside the nozzle B1 is exhausted,
This will remain in the lower fluid flow path B0, which will hinder maintenance. In order to prevent this, in the conventional spiral heat exchanger, the heat exchanger body 1
A draining nozzle D communicating with the fluid passage B0 is provided at a lower portion of the outer peripheral portion of the fluid passage B0. Fluid remaining in the passage heat transfer portion B0 is discharged through the draining nozzle D, and the fluid flows through the fluid flow passage B0. It did not remain on the road B0.
【０００６】このように、従来のスパイラル式熱交換器
においては、空気抜き用ノズルＮ及びドレン抜き用ノズ
ルＤを設ける必要があるため、全体構造が複雑になり、
加工が困難になるとともに、加工工程数の増加や部品点
数の増加により、スパイラル式熱交換器の製造コストが
嵩むという問題があった。また、各々のノズルＮ，Ｄに
弁を取り付ける等の工事も必要であった。As described above, in the conventional spiral heat exchanger, it is necessary to provide the air bleeding nozzle N and the drain bleeding nozzle D, so that the overall structure becomes complicated.
There is a problem that the processing becomes difficult, and the manufacturing cost of the spiral heat exchanger increases due to the increase in the number of processing steps and the number of parts. In addition, construction such as mounting a valve on each of the nozzles N and D was also required.
【０００７】本発明は、上記従来の完全向流方式のスパ
イラル式熱交換器の有する問題点に鑑み、空気抜き用の
ノズル及びドレン抜き用のノズルを設ける必要がなく、
構造が簡単なスパイラル式熱交換器を提供することを目
的とする。In view of the above-mentioned problems of the conventional fully countercurrent spiral heat exchanger, the present invention eliminates the need for providing an air vent nozzle and a drain vent nozzle.
It is an object of the present invention to provide a spiral heat exchanger having a simple structure.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明のスパイラル式熱交換器は、金属板を所要間
隔をおいて鉛直軸を中心としてスパイラル状に巻いて、
２つのスパイラル状の流体流路を交互に形成するように
した完全向流方式のスパイラル式熱交換器において、一
方の流体流路の入口を熱交換器本体の軸心下部に、出口
を熱交換器本体の外周部の上部に形成するとともに、他
方の流体流路の入口を熱交換器本体の外周部の下部に、
出口を熱交換器本体の軸心上部に形成したことを特徴と
する。In order to achieve the above object, a spiral heat exchanger of the present invention is provided by winding a metal plate in a spiral shape around a vertical axis at a required interval.
In a complete counter-flow spiral heat exchanger in which two spiral fluid flow paths are formed alternately, the inlet of one of the fluid flow paths is located below the axis of the heat exchanger body and the outlet is heat-exchanged. Formed at the upper part of the outer periphery of the heat exchanger body, and the inlet of the other fluid flow path is formed at the lower part of the outer periphery of the heat exchanger body,
The outlet is formed above the axis of the heat exchanger body.
【０００９】このスパイラル式熱交換器は、一方の流体
流路の入口を熱交換器本体の軸心下部に、出口を熱交換
器本体の外周部の上部に形成するようにしているため、
組立時あるいはメンテナンス時に熱交換器本体内に封入
された空気は、流体流路内に流体を流通させることによ
り、流体の勢いにより出口より送り出され、流体流路に
残留することがない。また、他方の流体流路の入口を熱
交換器本体の外周部の下部に、出口を熱交換器本体の軸
心上部に形成するようにしているため、メンテナンス時
に熱交換器本体内の流体は、出口より送り出され、流体
流路にほとんど残留することがない。In this spiral heat exchanger, the inlet of one of the fluid passages is formed below the axis of the heat exchanger body, and the outlet is formed above the outer peripheral portion of the heat exchanger body.
The air sealed in the heat exchanger body at the time of assembly or maintenance is sent out from the outlet by the force of the fluid by flowing the fluid through the fluid flow path, and does not remain in the fluid flow path. In addition, since the inlet of the other fluid flow path is formed at the lower part of the outer peripheral part of the heat exchanger main body and the outlet is formed at the upper part of the axis of the heat exchanger main body, the fluid in the heat exchanger main body during maintenance is Are discharged from the outlet and hardly remain in the fluid flow path.
【００１０】[0010]
【発明の実施の形態】以下、本発明のスパイラル式熱交
換器の実施の形態を図面に基づいて説明する。図１〜図
３に、本発明のスパイラル式熱交換器の一実施例を示
す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the spiral heat exchanger of the present invention will be described below with reference to the drawings. 1 to 3 show one embodiment of the spiral heat exchanger of the present invention.
【００１１】このスパイラル式熱交換器は、金属板２を
所要間隔をおいて鉛直軸を中心としてスパイラル状に巻
いて、２つのスパイラル状の流体流路Ａ，Ｂを交互に形
成するようにした完全向流方式のスパイラル式熱交換器
であって、一方の流体流路Ａの入口Ａ１を熱交換器本体
１の軸心下部、具体的には、熱交換器本体１の下部平カ
バー３の軸心に、出口Ａ２を熱交換器本体１の外周部の
上部、具体的には、交換器本体１の外周部のチャンネル
５の上部に形成するとともに、他方の流体流路Ｂの入口
Ｂ１を熱交換器本体１の外周部の下部、具体的には、交
換器本体１の外周部のチャンネル６の下部に、出口Ｂ２
を熱交換器本体１の軸心上部、具体的には、熱交換器本
体１の上部平カバー４の軸心に形成するようにしてい
る。In this spiral heat exchanger, two spiral fluid flow paths A and B are alternately formed by winding a metal plate 2 in a spiral around a vertical axis at a required interval. A spiral type heat exchanger of a complete counterflow type, in which an inlet A1 of one fluid flow path A is provided below a shaft center of the heat exchanger main body 1, specifically, a lower flat cover 3 of the heat exchanger main body 1. At the axis, an outlet A2 is formed above the outer peripheral portion of the heat exchanger body 1, specifically, above the channel 5 on the outer peripheral portion of the exchanger body 1, and the inlet B1 of the other fluid flow path B is formed. An outlet B2 is provided at a lower portion of the outer peripheral portion of the heat exchanger body 1, specifically, a lower portion of the channel 6 at the outer peripheral portion of the exchanger body 1.
Is formed above the axis of the heat exchanger body 1, specifically, on the axis of the upper flat cover 4 of the heat exchanger body 1.
【００１２】そして、２つのスパイラル状の流体流路
Ａ，Ｂの上下端は、金属板２の上下端縁を隣接する金属
板２と溶接して閉塞したり、公知の材質のガスケット
７，８を介して下部平カバー３及び上部平カバー４に挟
持することにより、シールするようにする。The upper and lower ends of the two spiral fluid flow paths A and B are closed by welding the upper and lower edges of the metal plate 2 to the adjacent metal plate 2 or gaskets 7 and 8 of a known material. By being sandwiched between the lower flat cover 3 and the upper flat cover 4 through the seal, the sealing is performed.
【００１３】この場合において、スパイラル状の流体流
路Ａ，Ｂを形成する金属板２の材質は、スパイラル式熱
交換器の用途、特に、流体の性状等により、ステンレス
鋼、チタニウム、ハステロイ、ニッケル、モネル、軟鋼
等の金属から適宜選択することができる。In this case, the material of the metal plate 2 forming the spiral fluid flow paths A and B may be stainless steel, titanium, hastelloy, nickel, or the like, depending on the use of the spiral heat exchanger, particularly, the properties of the fluid. , Monel, mild steel and the like.
【００１４】また、この金属板２間には、必要に応じ
て、ディスタンスピース（図示省略）を配設することに
より、隣接する金属板２同士の間隔を所定の値に保持す
るようにすることができる。A distance piece (not shown) is provided between the metal plates 2 as necessary so that the distance between the adjacent metal plates 2 is maintained at a predetermined value. Can be.
【００１５】次に、このスパイラル式熱交換器の作用に
ついて説明する。このスパイラル式熱交換器は、一方の
流体流路Ａの入口Ａ１を熱交換器本体１の軸心下部、具
体的には、熱交換器本体１の下部平カバー３の軸心に、
出口Ａ２を熱交換器本体１の外周部の上部、具体的に
は、交換器本体１の外周部のチャンネル５の上部に形成
するようにしているため、組立時あるいはメンテナンス
時に流体流路Ａ内に封入された空気は、流体流路Ａ内に
流体を流通させることにより、流体の勢いにより出口Ａ
２より円滑に送り出され、流体流路Ａに残留することが
なく、流体流路Ａの全体に流体が流通して、効率的に熱
交換を行うことができ、このため、従来のスパイラル式
熱交換器において必要であった、流体流路Ａに連通する
空気抜き用ノズルを設ける必要がなくなる。Next, the operation of the spiral heat exchanger will be described. In this spiral heat exchanger, the inlet A1 of one of the fluid flow paths A is located below the axis of the heat exchanger body 1, specifically, the axis of the lower flat cover 3 of the heat exchanger body 1.
Since the outlet A2 is formed above the outer peripheral portion of the heat exchanger main body 1, specifically, above the channel 5 on the outer peripheral portion of the exchanger main body 1, the outlet A2 is formed in the fluid flow passage A during assembly or maintenance. The air sealed in the outlet A is caused by the flow of the fluid in the fluid flow path A, so that the outlet A
2, the fluid flows smoothly through the fluid flow path A without remaining in the fluid flow path A, and heat can be efficiently exchanged. It is not necessary to provide an air vent nozzle communicating with the fluid flow path A, which is required in the exchanger.
【００１６】また、他方の流体流路Ｂの入口Ｂ１を熱交
換器本体１の外周部の下部、具体的には、交換器本体１
の外周部のチャンネル６の下部に、出口Ｂ２を熱交換器
本体１の軸心上部、具体的には、熱交換器本体１の上部
平カバー４の軸心に形成するようにしているため、メン
テナンス時に流体流路Ｂ内の流体は、出口Ｂ２より円滑
に送り出され、流体流路Ｂにほとんど残留することがな
く、流体流路Ｂの流体を完全に排出して、効率的にメン
テナンスを行うことができ、このため、従来のスパイラ
ル式熱交換器において必要であった、流体流路Ｂに連通
するドレン抜き用のノズルを設ける必要がなくなる。Further, the inlet B1 of the other fluid passage B is connected to a lower portion of the outer peripheral portion of the heat exchanger body 1, specifically, the heat exchanger body 1
The outlet B2 is formed at the upper part of the axis of the heat exchanger body 1, specifically, at the axis of the upper flat cover 4 of the heat exchanger body 1, at the lower part of the channel 6 on the outer peripheral portion of At the time of maintenance, the fluid in the fluid flow path B is smoothly sent out from the outlet B2, hardly remains in the fluid flow path B, and the fluid in the fluid flow path B is completely discharged to perform maintenance efficiently. Therefore, it is not necessary to provide a drain nozzle communicating with the fluid flow path B, which is required in the conventional spiral heat exchanger.
【００１７】[0017]
【発明の効果】本発明のスパイラル式熱交換器によれ
ば、一方の流体流路の入口を熱交換器本体の軸心下部
に、出口を熱交換器本体の外周部の上部に形成するよう
にしているため、組立時あるいはメンテナンス時に熱交
換器本体内に封入された空気は、流体流路内に流体を流
通させることにより、流体の勢いにより出口より送り出
され、流体流路に残留することがない。また、他方の流
体流路の入口を熱交換器本体の外周部の下部に、出口を
熱交換器本体の軸心上部に形成するようにしているた
め、メンテナンス時に熱交換器本体内の流体は、出口よ
り送り出され、流体流路にほとんど残留することがな
い。このため、従来のスパイラル式熱交換器において必
要であった、流体流路に連通する空気抜き用ノズル及び
ドレン抜き用のノズルを設ける必要がなく、このため、
各々のノズルに対して弁を取り付ける等の工事も不要と
なって、スパイラル式熱交換器の構造が簡単となり、加
工費や部品費がかからず、スパイラル式熱交換器の製造
コストを低廉にできる。According to the spiral heat exchanger of the present invention, the inlet of one of the fluid passages is formed at the lower portion of the axial center of the heat exchanger body, and the outlet is formed at the upper portion of the outer peripheral portion of the heat exchanger body. Therefore, the air sealed in the heat exchanger body during assembly or maintenance is sent out from the outlet by the force of the fluid by flowing the fluid through the fluid flow path, and remains in the fluid flow path. There is no. In addition, since the inlet of the other fluid flow path is formed at the lower part of the outer peripheral part of the heat exchanger main body and the outlet is formed at the upper part of the axis of the heat exchanger main body, the fluid in the heat exchanger main body during maintenance is Are discharged from the outlet and hardly remain in the fluid flow path. For this reason, there is no need to provide an air vent nozzle and a drain vent nozzle communicating with the fluid flow path, which were necessary in the conventional spiral heat exchanger.
There is no need to install a valve for each nozzle, so the structure of the spiral heat exchanger is simplified, processing and parts costs are reduced, and the manufacturing cost of the spiral heat exchanger is reduced. it can.
【図１】本発明のスパイラル式熱交換器の一実施例を示
す正面図である。FIG. 1 is a front view showing one embodiment of a spiral heat exchanger of the present invention.
【図２】同平面断面図である。FIG. 2 is a plan sectional view of the same.
【図３】同正面断面図である。FIG. 3 is a front sectional view of the same.
【図４】従来のスパイラル式熱交換器を示す正面図であ
る。FIG. 4 is a front view showing a conventional spiral heat exchanger.
【図５】同正面断面図である。FIG. 5 is a front sectional view of the same.
１ 熱交換器本体 ２ 金属板 ３ 下部平カバー ４ 上部平カバー ５ チャンネル ６ チャンネル ７ ガスケット ８ ガスケット Ａ 流体流路 Ａ１ 入口 Ａ２ 出口 Ｂ 流体流路 Ｂ１ 入口 Ｂ２ 出口 DESCRIPTION OF SYMBOLS 1 Heat exchanger main body 2 Metal plate 3 Lower flat cover 4 Upper flat cover 5 Channel 6 Channel 7 Gasket 8 Gasket A Fluid flow path A1 Inlet A2 Outlet B Fluid flow path B1 Inlet B2 Outlet
Claims (1)
としてスパイラル状に巻いて、２つのスパイラル状の流
体流路を交互に形成するようにした完全向流方式のスパ
イラル式熱交換器において、一方の流体流路の入口を熱
交換器本体の軸心下部に、出口を熱交換器本体の外周部
の上部に形成するとともに、他方の流体流路の入口を熱
交換器本体の外周部の下部に、出口を熱交換器本体の軸
心上部に形成したことを特徴とするスパイラル式熱交換
器。1. A completely counter-current spiral heat exchanger in which metal plates are spirally wound around a vertical axis at required intervals to form two spiral fluid flow paths alternately. In one embodiment, the inlet of one of the fluid flow paths is formed at the lower part of the axial center of the heat exchanger main body, and the outlet is formed at the upper part of the outer peripheral part of the heat exchanger main body, and the inlet of the other fluid flow path is formed at the outer circumference of the heat exchanger main body. A spiral heat exchanger characterized in that an outlet is formed at a lower part of the part, at an upper part of an axis of the heat exchanger body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10250237A JP2000074577A (en) | 1998-09-04 | 1998-09-04 | Spiral type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10250237A JP2000074577A (en) | 1998-09-04 | 1998-09-04 | Spiral type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000074577A true JP2000074577A (en) | 2000-03-14 |
Family
ID=17204883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10250237A Withdrawn JP2000074577A (en) | 1998-09-04 | 1998-09-04 | Spiral type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000074577A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004063655A1 (en) * | 2003-01-09 | 2004-07-29 | Moon-Hwa Jung | A multi-spiral heat exchanger |
| WO2014085874A3 (en) * | 2012-12-05 | 2014-09-12 | Polyvision, Naamloze Vennootschap | Spiral or helical counterflow heat exchanger |
| US10697708B2 (en) * | 2016-04-18 | 2020-06-30 | Hamilton Sunstrand Corporation | Heat exchangers |
-
1998
- 1998-09-04 JP JP10250237A patent/JP2000074577A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004063655A1 (en) * | 2003-01-09 | 2004-07-29 | Moon-Hwa Jung | A multi-spiral heat exchanger |
| WO2014085874A3 (en) * | 2012-12-05 | 2014-09-12 | Polyvision, Naamloze Vennootschap | Spiral or helical counterflow heat exchanger |
| BE1021647B1 (en) * | 2012-12-05 | 2015-12-22 | Polyvision, Naamloze Vennootschap | HEAT EXCHANGERS |
| US10094621B2 (en) | 2012-12-05 | 2018-10-09 | Polyvision, Naamloze Vennootschap | Spiral or helical counterflow heat exchanger |
| US10697708B2 (en) * | 2016-04-18 | 2020-06-30 | Hamilton Sunstrand Corporation | Heat exchangers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20060110 |