JPS63116074A - Mounting structure of level sensor for absorption refrigerator - Google Patents
Mounting structure of level sensor for absorption refrigeratorInfo
- Publication number
- JPS63116074A JPS63116074A JP26111186A JP26111186A JPS63116074A JP S63116074 A JPS63116074 A JP S63116074A JP 26111186 A JP26111186 A JP 26111186A JP 26111186 A JP26111186 A JP 26111186A JP S63116074 A JPS63116074 A JP S63116074A
- Authority
- JP
- Japan
- Prior art keywords
- level sensor
- absorption refrigerator
- liquid level
- absorption
- electrode
- 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.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 title claims description 35
- 239000007788 liquid Substances 0.000 claims description 23
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000004695 Polyether sulfone Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229920006393 polyether sulfone Polymers 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000604301 Ninia Species 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
ビ）・産業上の利用分野
本発明は吸収冷凍機用液面センサーの取付は構造の改良
に関する。DETAILED DESCRIPTION OF THE INVENTION B) Industrial Application Field The present invention relates to an improvement in the structure of a liquid level sensor for an absorption refrigerating machine.
（ロ）従来の技術
吸収冷凍機用液面センサーの取付は構造の従来の技術と
して、液面センサーの配備されろ吸収冷凍機本体の器壁
と液位検出用金属製電極との接合部に絶縁用碍子を介在
させ、かつ、この碍子にボルトを嵌め込み、このボルト
を冷凍機本体の器壁に螺着することにより、液面センサ
ーを吸収冷凍機に取付けた構造のもの（例えば、特開昭
６０−１２６５５９号公報の第１図参照）がある。(b) Conventional technology The conventional technology for installing a liquid level sensor for an absorption refrigerating machine is that the liquid level sensor is installed at the joint between the wall of the absorption refrigerating machine and the metal electrode for liquid level detection. A structure in which a liquid level sensor is attached to an absorption refrigerator by interposing an insulating insulator, fitting a bolt into the insulator, and screwing the bolt to the wall of the refrigerator main body (for example, (See Figure 1 of Publication No. 60-126559).
（ハ）発明が解決しようとする問題点
上記した従来のような液面センサーの取付は構造のもの
においては、電極と碍子との嵌め込み部および碍子とボ
ルトとの嵌め込み部の気密性を保つのに難点があり、ま
た、吸収冷凍機の運転と休止との繰返しに伴ない、冷凍
機本体の器壁とボルトとの螺着部が熱による膨張収縮を
繰返してゆるんでくるため、吸収冷凍機の気密性を保持
し難く、その正常な運転の阻害要因となる問題点があっ
た。(c) Problems to be Solved by the Invention In the conventional mounting structure of the liquid level sensor described above, it is difficult to maintain the airtightness of the fitting part between the electrode and the insulator and the fitting part between the insulator and the bolt. In addition, as the absorption chiller is repeatedly operated and stopped, the screws between the wall of the chiller body and the bolts repeatedly expand and contract due to heat, causing them to loosen. There was a problem in that it was difficult to maintain airtightness, which hindered normal operation.
なお、上記嵌め込み部には通常セラミック系接着剤を用
いているものの、この接着剤も吸収冷凍機の溶液により
侵蝕されやすい難点がある。Although a ceramic adhesive is normally used for the fitted portion, this adhesive also has the disadvantage of being easily corroded by the solution of the absorption refrigerator.
本発明は、このような問題点に鑑み、吸収冷凍機〔吸収
ヒートポンプ、吸収冷暖房機〕の気密性を長期間にわた
って保持することの可能な液面センサーの取付１ｊ構造
を提案するものである。In view of these problems, the present invention proposes a liquid level sensor mounting structure 1j that can maintain the airtightness of an absorption refrigerator (absorption heat pump, absorption air-conditioner) for a long period of time.
に）問題点を解決するだめの手段
本発明は、上記の問題点を解決する手段として、液位検
出用金属製！極をインサートして成形されたエンジニア
リング樹脂製フランジ型ユニツトをその電極が吸収冷凍
機の内部に挿入されるよ５冷凍機本体の器壁の孔へ嵌め
入れ、かつ、上記ユニットのフランジと器壁との間にバ
ッキングを介在させてこれらをネジで締め付けろことに
より、液面センサーを吸収冷凍機に取付ける構造とした
ものである。B) Means for Solving the Problems The present invention provides a means for solving the above-mentioned problems by using a metal device for liquid level detection. The flange-type unit made of engineering resin molded with the electrode inserted is inserted into the hole in the wall of the refrigerator main body (5) so that the electrode is inserted into the absorption refrigerator, and the flange of the unit and the wall are inserted. The liquid level sensor is attached to the absorption refrigerator by interposing a backing between the two and tightening them with screws.
（ホ）作用
本発明による吸収冷凍機用液面センサーの吹付は構造に
あっては、上記ユニ７）のフランジと器壁との間に介在
させたバッキングがこれらの熱による膨張収縮に対する
緩衝作用を発揮しつつこれらの間のシール機能を保持す
る。また、金属製電極に対するエンジニアリング樹脂の
成形時における濡れは良好〔特に、チタンに白金メッキ
を施した電極に対するポリエーテルサルホン樹脂の成形
時の濡れは特に良好〕であるため、上記ユニットの樹脂
と電極との境界は優れたシール機能を発揮する。(E) Function The spraying structure of the liquid level sensor for an absorption refrigerator according to the present invention is such that the backing interposed between the flange of the unit 7) and the vessel wall acts as a buffer against expansion and contraction caused by heat. while maintaining the sealing function between them. In addition, the wetting of engineering resins to metal electrodes during molding is good (particularly the wetting of polyethersulfone resins to electrodes made of titanium plated with platinum is particularly good); The boundary with the electrode exhibits an excellent sealing function.
（へ）実施例
図面は本発明による吸収冷凍機用液面センサーの取付は
構造の一例を示した要部断面図である。(F) Embodiment The drawing is a sectional view of a main part showing an example of the structure for installing a liquid level sensor for an absorption refrigerator according to the present invention.
図において、ｆｉｌは吸収冷凍機もしくは吸収ヒートポ
ンプあるいは吸収冷温水機なと〔以下、吸収冷凍機とい
う〕の本体の器壁である。そして、（２）は吸収冷凍機
本体の内部で、この内部には冷媒液〔水〕または吸収液
〔臭化リチウム水溶液〕とその蒸気とが流′れている。In the figure, fil is the wall of the main body of an absorption refrigerator, an absorption heat pump, or an absorption chiller/heater (hereinafter referred to as an absorption refrigerator). (2) is the interior of the absorption refrigerator body, in which the refrigerant liquid (water) or absorption liquid (lithium bromide aqueous solution) and its vapor flow.
一方、（３）は吸収冷凍機本体の外部である。また、（
４）は器壁＋ｌ）を穿った孔である。On the other hand, (3) is the outside of the absorption refrigerator main body. Also,(
4) is a hole made in the vessel wall +l).
（５）はその中心に液位検出用金属製電極（６）の挿通
されているエンジニアリング樹脂製フランジ型ユニット
で、その電極（６）が吸収冷凍機本体の内部（２）に挿
入されるようユニット（５）が孔（４）に嵌入され、か
つ、ユニット（５）のフランジ（７］と器壁（１）との
間にバッキング（８）を介在させてネジ（９）、 （９
）・・・でフランジ（７）と器壁（１）とが締め付は固
定されることにより、液面センサーが吸収冷凍機本体に
取付けられている。なお、αＱ、αＣ・・・はユニット
（５）の押え板である。これら押え板を用いずに、フラ
ンジ（７）と器壁（１）とを直接にネジ止めしても良い
ことは熱論である。なおまた、フランジ（力の周縁には
図示のように溝を形成し、この溝にリング状のバッキン
グ（８）を挾持するのが好ましい。(5) is a flange-type unit made of engineering resin with a metal electrode (6) for liquid level detection inserted through its center, and the electrode (6) is inserted into the inside (2) of the absorption chiller body. The unit (5) is fitted into the hole (4), and the backing (8) is interposed between the flange (7) of the unit (5) and the vessel wall (1), and the screws (9), (9
)... By tightening and fixing the flange (7) and the vessel wall (1), the liquid level sensor is attached to the absorption refrigerator body. Note that αQ, αC, . . . are presser plates of the unit (5). It is a hot theory that the flange (7) and the vessel wall (1) may be directly screwed together without using these presser plates. Furthermore, it is preferable that a groove is formed on the periphery of the flange (as shown in the figure), and a ring-shaped backing (8) is held in this groove.
また、電極（６）には溶液に対する耐食性に秀れたもの
、例えばチタンに白金メッキを施したものやクロム基合
金もしくはニッケル基合金などの高耐食性金属が使用さ
れると共に、ユニット（５）には溶液に侵されに（いポ
リエーテルサルホンやポリエーテルエーテルケヒシやポ
リフェニレンサルファイドなどのエンジニアリング樹脂
が使用される。 。In addition, the electrode (6) is made of a highly corrosion-resistant metal such as titanium plated with platinum, chromium-based alloy, or nickel-based alloy, which has excellent corrosion resistance against solutions. Engineering resins such as polyether sulfone, polyether ether sulfide, and polyphenylene sulfide are used because they are resistant to attack by solutions.
そして、二ニア）（５１はエンジニアリング樹脂のペレ
ットに電極（６）をインサートして射出成形機により成
形さ、れろ。なお、ｒエンジニアリング樹脂としてポリ
エーテルサルホンを使用し、２０オンスまでのスクリュ
ータイプ射出成形機を用いてユニット（５）を成形する
場合の条件の一ゲＪを挙げれば下表そして、チタンに白
金メッキを施した電極に対するポリエーテルサルホンの
成形時の濡れは良好であり、かつ、その成形収縮率は０
．６〜０．７％であり、電極（６）Ｋ対するポリエーテ
ルサルホンの成形後の密着性は、下記（ａｌ、（ｂｌの
テストにより、良好であることを確認した。Then, Ninia) (51 is made by inserting the electrode (6) into a pellet of engineering resin and molding it with an injection molding machine.In addition, polyether sulfone is used as the engineering resin, and screw type up to 20 ounces is used. The conditions for molding the unit (5) using an injection molding machine are shown in the table below.The wetting of the polyether sulfone to the platinum-plated titanium electrode during molding is good. And its molding shrinkage rate is 0
．． 6 to 0.7%, and it was confirmed that the adhesion of the polyether sulfone to the electrode (6) K after molding was good by the following tests (al and (bl)).
（ａｌ ′ＩｔＬ極（６）をインサートへして成形し
たユニット（５）を１５０℃の吸収液〔臭化リチウム水
溶液〕の中に１５００時間浸漬した後、電極と樹脂との
境界でのヘリウムリーク検査を試みた結果、漏れは検出
されなかった。(Al 'After immersing the unit (5) formed by inserting the ItL electrode (6) into an absorption liquid [lithium bromide aqueous solution] at 150°C for 1500 hours, helium leakage occurred at the boundary between the electrode and the resin. After testing, no leaks were detected.
（ｂ）０℃〜１５０℃でユニット（５）のヒートサイク
ルテスト〔保持時間１５分、５０サイクル〕を行りた後
、電極と樹脂との境界でのヘリウムＩＪ−り検査を試み
た結果、漏れは検出されなかった。(b) After performing a heat cycle test of unit (5) at 0°C to 150°C [holding time 15 minutes, 50 cycles], we attempted a helium IJ test at the boundary between the electrode and the resin. No leaks were detected.
このテスト結果から明らかなように、ユニット（５）の
樹脂と電極（６）との境界におけるシール性能は秀れて
いることが分かる。そして、このシール機能はユニット
（５）を吸収冷暖房機〔これの冬期の運転とその休止と
の繰返しにより、ユニット（５）は約１５０℃〜０℃の
吸収液にさらされるケースもある。〕に適用しても、長
期にわたって十分に保たれるものであることが分かる。As is clear from this test result, the sealing performance at the boundary between the resin of the unit (5) and the electrode (6) is excellent. This sealing function protects the unit (5) from the absorption air-conditioning machine (by repeatedly operating and stopping the unit in the winter, the unit (5) may be exposed to absorption liquid at a temperature of about 150°C to 0°C. ], it can be seen that it is sufficiently maintained over a long period of time.
かつまた、ユニット（５）はそのフランジ（７）と吸収
冷凍機本体の器壁（１）との間にバッキング（８）を介
在させて吸収冷凍機に締付は固定されているので、その
運転と休止の繰返しによるヒートサイクルでこれら部材
の膨張収縮が繰返されても、これをノ（ッキング（８）
が緩衝する。そのため、器壁（１）とユニット（５）の
フランジ（７）との間の気密性は保たれる。Moreover, since the unit (5) is fastened to the absorption refrigerator with a backing (8) interposed between its flange (7) and the wall (1) of the absorption refrigerator main body, the Even if these parts expand and contract repeatedly due to heat cycles caused by repeated operation and rest, this can be prevented by knocking (8).
buffers. Therefore, airtightness between the vessel wall (1) and the flange (7) of the unit (5) is maintained.
（ト） 発明の効果
以上のとおり、本発明は、液面センサーの吸収冷凍機へ
の取付は部の長期にわたる気密性の保持効果をもたらし
、吸収冷凍機の正常な運転を長期にわたって継続できる
液面センサーの取付は構造を提案するものとして実用的
価値の高いものである。(G) Effects of the Invention As described above, the present invention provides a liquid level sensor that can maintain the airtightness of the absorption refrigerator for a long period of time by attaching a liquid level sensor to the absorption refrigerator. The installation of surface sensors has high practical value as a structural proposal.
図面は本発明による吸収冷凍機用液面センサーの取付は
構造の一実施例を示した要部断面図である。
１１１・・・器壁、 （２）・・・吸収冷凍機本体の内
部、（４）・・・孔、１５１・・・ユニツ）、（６Ｊ・
・・電極、（７〕・・・フランジ、 （８）・・・バッ
キング、 （９）・・・ネジ。The drawing is a sectional view of a main part showing an embodiment of the mounting structure of a liquid level sensor for an absorption refrigerator according to the present invention. 111... Container wall, (2)... Inside of absorption chiller main body, (4)... Hole, 151... Units), (6J.
...Electrode, (7)...Flange, (8)...Backing, (9)...Screw.
Claims (2)
たエンジニアリング樹脂製フランジ型ユニットをその電
極が吸収冷凍機本体の内部に挿入されるよう冷凍機本体
の器壁の孔へ嵌め入れ、かつ、上記ユニットのフランジ
と冷凍機本体の器壁との間にバッキングを介在させてこ
れらをネジで締め付けたことを特徴とする吸収冷凍機用
液面センサーの取付け構造。(1) Insert a molded engineering resin flange type unit into which a metal electrode for liquid level detection is inserted into a hole in the wall of the refrigerator body so that the electrode is inserted inside the absorption refrigerator body, A mounting structure for a liquid level sensor for an absorption refrigerator, characterized in that a backing is interposed between the flange of the unit and the wall of the refrigerator main body, and these are tightened with screws.
ると共にエンジニアリング樹脂がポリエーテルサルホン
である特許請求の範囲第１項に記載の吸収冷凍機用液面
センサーの取付け構造。(2) The mounting structure for a liquid level sensor for an absorption refrigerator according to claim 1, wherein the electrode is made of titanium plated with platinum, and the engineering resin is polyether sulfone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26111186A JPS63116074A (en) | 1986-10-31 | 1986-10-31 | Mounting structure of level sensor for absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26111186A JPS63116074A (en) | 1986-10-31 | 1986-10-31 | Mounting structure of level sensor for absorption refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63116074A true JPS63116074A (en) | 1988-05-20 |
Family
ID=17357239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26111186A Pending JPS63116074A (en) | 1986-10-31 | 1986-10-31 | Mounting structure of level sensor for absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63116074A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536386B2 (en) * | 1978-01-28 | 1980-09-20 | ||
| JPS5623674B2 (en) * | 1976-07-29 | 1981-06-01 | ||
| JPS6023425B2 (en) * | 1981-12-14 | 1985-06-07 | 松下電器産業株式会社 | cassette adapter |
| JPS60126559A (en) * | 1983-12-12 | 1985-07-06 | 三洋電機株式会社 | Controller for absorption refrigerator |
-
1986
- 1986-10-31 JP JP26111186A patent/JPS63116074A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623674B2 (en) * | 1976-07-29 | 1981-06-01 | ||
| JPS5536386B2 (en) * | 1978-01-28 | 1980-09-20 | ||
| JPS6023425B2 (en) * | 1981-12-14 | 1985-06-07 | 松下電器産業株式会社 | cassette adapter |
| JPS60126559A (en) * | 1983-12-12 | 1985-07-06 | 三洋電機株式会社 | Controller for absorption refrigerator |
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