JPH0721395B2 - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH0721395B2 JPH0721395B2 JP62199191A JP19919187A JPH0721395B2 JP H0721395 B2 JPH0721395 B2 JP H0721395B2 JP 62199191 A JP62199191 A JP 62199191A JP 19919187 A JP19919187 A JP 19919187A JP H0721395 B2 JPH0721395 B2 JP H0721395B2
- Authority
- JP
- Japan
- Prior art keywords
- dust
- heat transfer
- transfer tube
- heat
- plate
- 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.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 239000003518 caustics Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
-
- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
- F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は廃ガス又は空気の冷却器、特に、冷凍機や空気
調和機の蒸発器に好適な熱交換器に関する。Description: TECHNICAL FIELD The present invention relates to a waste gas or air cooler, and more particularly to a heat exchanger suitable for an evaporator of a refrigerator or an air conditioner.
（従来の技術） 従来の冷凍機用蒸発器においては伝熱管内を流過する冷
媒が蒸発気化することによりその蒸発潜熱を上記伝熱管
の外部及び又はこの伝熱管に熱伝導可能に連結されてい
るプレート状、針状のフィンの間隙を流過する空気から
奪うことによってこの空気を冷却している。(Prior art) In a conventional evaporator for a refrigerator, the latent heat of vaporization is coupled to the outside of the heat transfer tube and / or the heat transfer tube by heat conduction as the refrigerant flowing through the heat transfer tube evaporates and vaporizes. This air is cooled by removing it from the air flowing through the gap between the plate-shaped and needle-shaped fins.
（発明が解決しようとする問題点） 上記従来の蒸発器においては、蒸発器によって空気がそ
の露点温度以下に冷却されると、空気中の水分が凝縮液
化して伝熱管及びフィンの伝熱面に露となって付着す
る。そして、空気中に含まれている塵埃がこの露に吸着
されて伝熱面上に付着する。(Problems to be Solved by the Invention) In the above-described conventional evaporator, when air is cooled to a temperature below its dew point by the evaporator, moisture in the air is condensed and liquefied to form heat transfer surfaces of the heat transfer tubes and the fins. Dew adheres to the surface. Then, the dust contained in the air is adsorbed by the dew and adheres to the heat transfer surface.
冷凍機の運転を継続すると、塵埃が伝熱面上に堆積し、
伝熱面の熱伝達効率が低下すると同時にこの熱交換器を
流過する空気の圧力損失が大きくなって通風量が減少す
る。この結果、蒸発器の熱交換性能が急速に悪化するの
みならず塵埃に含まれる腐食性物質によって伝熱面が腐
食されるので蒸発器の寿命が著しく短くなる。Continuing to operate the refrigerator causes dust to accumulate on the heat transfer surface,
At the same time that the heat transfer efficiency of the heat transfer surface is reduced, the pressure loss of the air flowing through the heat exchanger is increased and the air flow rate is reduced. As a result, not only the heat exchange performance of the evaporator is rapidly deteriorated, but also the heat transfer surface is corroded by the corrosive substance contained in the dust, so that the life of the evaporator is significantly shortened.
これに対処するため、蒸発器に流入する空気の流入路に
繊維等からなるフィルタを配設して、このフィルタによ
って空気中に含まれる塵埃を捕捉するようにしている
が、塵埃の捕捉効率を上げるとフィルタの空気抵抗が増
大するので、実際は捕捉効率の低いフィルタを用いざる
を得ず、従って、フィルタに捕捉されなかった塵埃が伝
熱面上に堆積して上述の不具合を惹起しているのが実情
である。In order to deal with this, a filter made of fiber or the like is arranged in the inflow path of the air flowing into the evaporator, and the dust contained in the air is captured by this filter. Since the air resistance of the filter increases when raised, the filter that has a low trapping efficiency is inevitably used. Therefore, the dust that is not trapped by the filter accumulates on the heat transfer surface, causing the above-mentioned problems. Is the reality.
（問題点を解決するための手段） 本発明者は塵埃が堆積した蒸発器を注意深く観察した結
果、塵埃の堆積は蒸発器の空気流入口付近の限られた範
囲の伝熱面上に発生していることを見出した。(Means for Solving the Problems) As a result of careful observation of the evaporator on which dust has accumulated, the present inventor has found that dust accumulation occurs on the heat transfer surface in a limited range near the air inlet of the evaporator. I found that.
本発明は上記知見に基づいて鋭意検討、調査を重ねた結
果、得られたものであって、その要旨とするところは、
伝熱管及びこれに接合された多数のプレート状フィンか
らなり、上記伝熱管内を流過する流体と該伝熱管外を上
記プレート状フィンに沿って流過する含塵気流とを熱交
換させる熱交換器において、上記含塵気流に沿って上記
伝熱管の上流側に配設され上記含塵気流及び上記伝熱管
と平行する支持部材とこの支持部材に接合されて上記含
塵気流に沿って上記プレート状フィンの上流側に配設さ
れ上記含塵気流及び上記プレート状フィンと平行する多
数のフィンとからなる邪魔板を上記含塵気流の流入路に
設置するとともにこの邪魔板の表面に水又はその他の液
体を付着させることによってこれを湿潤させる湿潤手段
を設けたことを特徴とする熱交換器にある。The present invention was obtained as a result of extensive studies and investigations based on the above findings, and the gist thereof is
A heat transfer tube and a large number of plate-shaped fins joined to the heat transfer tube, and heat for exchanging heat between the fluid flowing inside the heat transfer tube and the dust-containing air current flowing outside the heat transfer tube along the plate fin. In the exchanger, a support member disposed upstream of the heat transfer tube along the dust-containing air stream and parallel to the dust-containing air stream and the heat-transfer tube and joined to the support member are connected along the dust-containing air stream to A baffle plate, which is arranged on the upstream side of the plate-shaped fins and is composed of the dust-containing airflow and a large number of fins parallel to the plate-shaped fins, is installed in the inflow path of the dust-containing airflow, and water or water flows on the surface of the baffle plate. A heat exchanger characterized in that it is provided with a wetting means for wetting another liquid by depositing it.
（作用） 本発明においては上記構成を具えているため、含塵気流
は熱交換器に流入する以前に邪魔板を流過し、この邪魔
板は水又はその他の液体によって湿潤されているので、
含塵気流がこの邪魔板を流過する際、含塵気流に含まれ
る塵埃はこの液体に吸着されて邪魔板の表面に付着して
除去される。(Operation) Since the present invention has the above-mentioned configuration, the dust-containing airflow passes through the baffle plate before flowing into the heat exchanger, and since the baffle plate is wet with water or another liquid,
When the dust-containing airflow passes through the baffle plate, the dust contained in the dust-containing airflow is adsorbed by the liquid and adheres to the surface of the baffle plate to be removed.
（実施例） 本発明の１実施例が第１図に示されている。(Embodiment) One embodiment of the present invention is shown in FIG.
１は蒸発器で、蛇行するように屈曲された伝熱管1aと、
これら伝熱管1aの対向面内に挿入して接合されたコルゲ
ート状のフィン1bと、伝熱管1aの入口端及び出口端に取
り付けられた入口ヘッダー1c及び出口ヘッダー1dからな
る。２は蒸発器１に流入する気流Ａの流入路に設置され
た邪魔板で、伝熱管1aと同じ形状に蛇行せしめられた支
持部材2aとこの支持部材2aの対向面間に挿入して接合さ
れたコルゲート状のフィン2bからなり、これら支持部材
2a及びフィン2bは気流Ａの流れ方向に平行に伸びてい
る。３は蒸発器１から滴下した凝縮水を貯溜するドレン
パン、４は邪魔板２を湿潤するための回転円盤で、その
外周縁はドレンパン３内に貯溜された凝縮水中に浸漬さ
れ、図示しないモータ等によって回転駆動される。1 is an evaporator, and a heat transfer tube 1a bent in a meandering manner,
The heat transfer tube 1a includes a corrugated fin 1b which is inserted into and joined to the facing surface of the heat transfer tube 1a, and an inlet header 1c and an outlet header 1d attached to the inlet end and the outlet end of the heat transfer tube 1a. Reference numeral 2 denotes a baffle plate installed in the inflow path of the air flow A flowing into the evaporator 1, and is inserted and joined between the support member 2a meandering in the same shape as the heat transfer tube 1a and the facing surface of this support member 2a. Corrugated fins 2b, these support members
The fins 2a and the fins 2b extend parallel to the flow direction of the air flow A. 3 is a drain pan for storing the condensed water dropped from the evaporator 1, 4 is a rotating disk for wetting the baffle plate 2, the outer peripheral edge of which is immersed in the condensed water stored in the drain pan 3, and a motor (not shown) or the like It is driven to rotate by.
しかして、冷凍機の運転中、気流Ａは邪魔板２を流過し
て蒸発器１に入り、ここで、伝熱管1a内を流れる冷媒と
伝熱管1a及びフィン1bを介して熱交換して冷却される。
すると、その空気中の水分は伝熱管1a及びフィン1bの表
面に結露して凝縮水となって滴下しドレンパン３内に溜
る。そして、この凝縮水は回転円板４の回転により跳ね
上げられて邪魔板２に散布され邪魔板２の支持部材2a及
びフィン2bを湿潤する。Then, during the operation of the refrigerator, the air flow A passes through the baffle plate 2 and enters the evaporator 1, where heat is exchanged with the refrigerant flowing in the heat transfer tube 1a through the heat transfer tube 1a and the fins 1b. To be cooled.
Then, the water in the air is condensed on the surfaces of the heat transfer tubes 1a and the fins 1b to form condensed water, which drops and accumulates in the drain pan 3. Then, the condensed water is splashed up by the rotation of the rotary disc 4 and scattered on the baffle plate 2 to wet the support members 2a and the fins 2b of the baffle plate 2.
かくして、空気中に含まれる塵埃は邪魔板２を流過する
際、支持部材2a及び2bの表面に付着している凝縮水に吸
着されて邪魔板２に堆積する。Thus, when the dust contained in the air flows through the baffle plate 2, it is adsorbed by the condensed water adhering to the surfaces of the support members 2a and 2b and accumulated on the baffle plate 2.
邪魔板を設置した場合と設置しない場合の比較試験結果
が次の表に示されている。The following table shows the comparative test results with and without the baffle.
この表から明らかなように、邪魔板を設置した場合は回
転円盤の作動、非作動に拘らず邪魔板を設置しない場合
に比し熱交換器の塵埃量は著しく減少する。そして、回
転円盤を作動させると、熱交換器への塵埃の付着を殆ど
完全に防止できる。なお、この比較試験に用いられた邪
魔板２の気流方向の厚さは約20mmであったが、10mm程度
あれば、これに凝縮水を散布することによりほぼ満足で
きる結果が得られることができる。 As is clear from this table, when the baffle plate is installed, the amount of dust in the heat exchanger is significantly reduced as compared with the case where the baffle plate is not installed regardless of whether the rotating disk is operating or not. Then, when the rotary disk is operated, it is possible to almost completely prevent dust from adhering to the heat exchanger. The thickness of the baffle plate 2 used in this comparative test in the air flow direction was about 20 mm, but if it is about 10 mm, almost satisfactory results can be obtained by spraying condensed water on it. .
以上本発明を冷凍機用蒸発器に適用した実施例について
説明したが、本発明は廃ガスその他の塵埃を含むガスを
冷却するための熱交換器に適用しうることは勿論であ
り、邪魔板を湿潤する液体は凝縮水に限らず、水道水、
油等任意の液体を用いることができ、また、これら液体
は滴下、噴霧等適宜の手段で邪魔板の表面に付着させる
ことができる。Although the embodiment in which the present invention is applied to the evaporator for a refrigerator has been described above, the present invention can be applied to a heat exchanger for cooling a gas containing waste gas or other dust, and the baffle plate is of course applicable. The liquid that wets is not limited to condensed water, but tap water,
Any liquid such as oil can be used, and these liquids can be attached to the surface of the baffle plate by an appropriate means such as dropping or spraying.
（考案の効果） 本発明においては、邪魔板の支持部材及びフィンは含塵
気流に沿って熱交換器の伝熱管及びプレート状フィンの
上流側に位置しており、しかも、これらの表面は水又は
その他の液体を付着させることによって潤滑されている
ので、含塵気流が邪魔板を流過する際この含塵気流中の
塵埃は邪魔板の表面に付着している液体によって効果的
に捕捉吸着される。(Advantages of the Invention) In the present invention, the baffle plate support member and the fins are located upstream of the heat transfer tubes and the plate-like fins of the heat exchanger along the dust-containing air flow, and their surfaces are not covered with water. Or, because it is lubricated by adhering other liquid, when the dust-containing airflow passes through the baffle, the dust in the dust-containing airflow is effectively captured and adsorbed by the liquid adhering to the surface of the baffle. To be done.
かくして、含塵気流に含まれる微細な塵埃や腐食性物資
を含塵気流が熱交換器に流入する以前に除去できるの
で、熱交換器の熱交換性能の低下を防ぎ、かつ、その寿
命を延長できる。Thus, the fine dust and corrosive substances contained in the dust-containing airflow can be removed before the dust-containing airflow flows into the heat exchanger, preventing the heat exchange performance of the heat exchanger from deteriorating and extending its life. it can.
また、邪魔板の支持部材は含塵気流に沿って伝熱管の上
流側に位置して含塵気流及び伝熱管と平行しており、ま
た、この支持部材に接合された多数のフィンも含塵気流
に沿ってプレート状フィンの上流側に位置して含塵気流
及びプレート状フィンと平行しているので、邪魔板及び
熱交換器を流過する気流の流過抵抗は殆ど増大すること
はない。Further, the support member of the baffle plate is located upstream of the heat transfer tube along the dust-containing air stream and parallel to the dust-containing air stream and the heat transfer tube. Further, many fins joined to this support member also contain dust. Since it is located on the upstream side of the plate-shaped fins along the airflow and is parallel to the dust-containing airflow and the plate-shaped fins, the flow resistance of the airflow passing through the baffle plate and the heat exchanger hardly increases. .
そして、本発明はその構造及びその取扱が極めて簡単で
あり、しかも既存のものにも容易に適用することをでき
る。The present invention is extremely simple in its structure and handling, and can be easily applied to existing ones.
第１図は本発明の１実施例を示す斜視図である。 伝熱管…1a、フィン…1b、邪魔板…２、気流…Ａ FIG. 1 is a perspective view showing one embodiment of the present invention. Heat transfer tube: 1a, fins: 1b, baffle plate: 2, air flow: A
Claims (1)
ト状フィンからなり、上記伝熱管内を流過する流体と該
伝熱管外を上記プレート状フィンに沿って流過する含塵
気流とを熱交換させる熱交換器において、上記含塵気流
に沿って上記伝熱管の上流側に配設され上記含塵気流及
び上記伝熱管と平行する支持部材とこの支持部材に接合
されて上記含塵気流に沿って上記プレート状フィンの上
流側に配設され上記含塵気流及び上記プレート状フィン
と平行する多数のフィンとからなる邪魔板を上記含塵気
流の流入路に設置するとともにこの邪魔板の表面に水又
はその他の液体を付着させることによってこれを湿潤さ
せる湿潤手段を設けたことを特徴とする熱交換器。1. A fluid comprising a heat transfer tube and a large number of plate-shaped fins joined to the heat transfer tube, and a fluid flowing inside the heat transfer tube and a dust-containing air stream flowing outside the heat transfer tube along the plate-shaped fin. In a heat exchanger for exchanging heat, a supporting member disposed upstream of the heat transfer tube along the dust-containing airflow and parallel to the dust-containing airflow and the heat-transfer tube and the dust-containing member joined to the support member. A baffle plate, which is arranged on the upstream side of the plate-shaped fins along the air flow and is composed of the dust-containing air flow and a large number of fins parallel to the plate-shaped fins, is installed in the inflow path of the dust-containing air flow and the baffle plate is provided. A heat exchanger provided with a wetting means for wetting water by adhering water or other liquid to the surface of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62199191A JPH0721395B2 (en) | 1987-08-11 | 1987-08-11 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62199191A JPH0721395B2 (en) | 1987-08-11 | 1987-08-11 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6446591A JPS6446591A (en) | 1989-02-21 |
| JPH0721395B2 true JPH0721395B2 (en) | 1995-03-08 |
Family
ID=16403655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62199191A Expired - Fee Related JPH0721395B2 (en) | 1987-08-11 | 1987-08-11 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0721395B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410291U (en) * | 1990-05-11 | 1992-01-29 | ||
| CN106793691B (en) * | 2016-12-19 | 2023-04-28 | 长安大学 | System and method for cooling water and recovering waste heat by utilizing tap water in data center |
| CN119687697B (en) * | 2025-01-17 | 2025-07-18 | 徐州盈量智能科技有限公司 | Air cooler tube bundle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6263591U (en) * | 1985-06-29 | 1987-04-20 |
-
1987
- 1987-08-11 JP JP62199191A patent/JPH0721395B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6446591A (en) | 1989-02-21 |
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