JPH079327B2 - Hydrogen gas discharge device for absorption refrigerator - Google Patents
Hydrogen gas discharge device for absorption refrigeratorInfo
- Publication number
- JPH079327B2 JPH079327B2 JP2910787A JP2910787A JPH079327B2 JP H079327 B2 JPH079327 B2 JP H079327B2 JP 2910787 A JP2910787 A JP 2910787A JP 2910787 A JP2910787 A JP 2910787A JP H079327 B2 JPH079327 B2 JP H079327B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- hydrogen gas
- palladium
- discharge device
- gas discharge
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 44
- 238000010521 absorption reaction Methods 0.000 title claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 43
- 229910052739 hydrogen Inorganic materials 0.000 claims description 43
- 150000002431 hydrogen Chemical class 0.000 claims description 17
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 9
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 22
- 238000007599 discharging Methods 0.000 description 9
- 229910052763 palladium Inorganic materials 0.000 description 7
- 229910001252 Pd alloy Inorganic materials 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Landscapes
- Sorption Type Refrigeration Machines (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【発明の詳細な説明】 （イ） 産業上の利用分野 本発明は、吸収冷凍機や吸収ヒートポンプ等の機械内に
発生する水素ガスを機械外へ排出するために用いられる
水素ガス排出装置に関する。TECHNICAL FIELD The present invention relates to a hydrogen gas discharge device used for discharging hydrogen gas generated in a machine such as an absorption refrigerator and an absorption heat pump to the outside of the machine.
（ロ） 従来の技術 従来此種の吸収冷凍機の水素ガス排出装置は実公昭47-1
9970号公報に開示されているように、パラジウムで作製
された水素ガス放出管を水素ガスの流入する容器に配設
し、水素ガスのみを機械外へ排出する吸収冷凍機の水素
ガス排出装置が公知となっている。(B) Conventional technology A conventional hydrogen gas discharge device for an absorption refrigerating machine of this type is Jpn.
As disclosed in Japanese Patent Publication No. 9970, a hydrogen gas discharge device of an absorption refrigerating machine, in which a hydrogen gas discharge pipe made of palladium is arranged in a container into which hydrogen gas flows, and only hydrogen gas is discharged to the outside of the machine, It is known.
（ハ） 発明が解決しようとする問題点 ところが、此種従来の水素ガス排出装置では、水素の排
出能力を向上させるため300度程度にまで加熱して運転
している。また、水素放出管はパラジウムで作製されて
おり、該パラジウムは295℃付近で相変態が起こり、そ
の際に水素を多く吸蔵していると水素放出管が著しく脆
化するものであった。従って水素放出管の寿命が短くな
っていた。(C) Problems to be solved by the invention However, in the conventional hydrogen gas discharging device of this kind, in order to improve the hydrogen discharging capacity, it is operated by heating up to about 300 degrees. Further, the hydrogen releasing tube is made of palladium, and the palladium undergoes a phase transformation at around 295 ° C., and if a large amount of hydrogen is stored at that time, the hydrogen releasing tube becomes significantly brittle. Therefore, the life of the hydrogen discharge tube was shortened.
本発明は上述した従来技術の問題点に鑑みてなされたも
のであり、従来装置より長寿命であり、更に水素の排出
能力が向上している吸収冷凍機の水素ガス排出装置の提
供を技術的課題とする。The present invention has been made in view of the above-mentioned problems of the prior art, and technically provides a hydrogen gas discharge device for an absorption refrigerator having a longer life than the conventional device and further improved hydrogen discharge capacity. It is an issue.
（ニ） 問題点を解決するための手段 水素ガスの流入する容器に配設されてある水素放出管を
パラジウム・銀合金で作製したものである。(D) Means for Solving the Problems A hydrogen-releasing pipe arranged in a container into which hydrogen gas flows is made of a palladium / silver alloy.
（ホ） 作用 パラジウム・銀合金で作製された水素放出管を備えてい
る本発明水素放出装置は、従来装置よりも長期間の使用
に耐え、更に従来装置よりも多くの水素を排出する。(E) Action The hydrogen releasing device of the present invention equipped with a hydrogen releasing tube made of a palladium-silver alloy withstands a longer period of use than the conventional device and further discharges more hydrogen than the conventional device.
（ヘ） 実施例 以下本発明の実施例を図面と共に説明する。第１図は吸
収冷凍機に使用されている水素ガス排出装置の図であ
る。（１）は水素排出装置の雰囲気温度を300℃程度ま
で加熱するヒータで、ヒータボックス（２）内に配設さ
れている。（３）は水素放出管である。該水素放出管
（３）は、銀の割合を約20〜25重量％としているパラジ
ウム・銀合金で作製されている。（４）は図示しない吸
収器や不凝縮ガスタンクと導入管（５）を介して接続さ
れている容器である。前記水素放出管（３）は前記容器
（４）を貫通し、水素放出管（３）と容器（４）との接
合部分（６）はフラックスを用いて銀ろうによりろう付
けされている。(F) Example An example of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram of a hydrogen gas discharge device used in an absorption refrigerator. (1) is a heater for heating the atmosphere temperature of the hydrogen discharging device to about 300 ° C., which is disposed in the heater box (2). (3) is a hydrogen discharge tube. The hydrogen releasing tube (3) is made of a palladium-silver alloy having a silver ratio of about 20 to 25% by weight. (4) is a container connected to an absorber or a non-condensing gas tank (not shown) via an introduction pipe (5). The hydrogen releasing pipe (3) penetrates the container (4), and the joint portion (6) between the hydrogen releasing pipe (3) and the container (4) is brazed with silver brazing using flux.
第２図は第１図と別の型式の水素排出装置の図である。
尚、第１図と同一の番号のものは同一の機能を果すもの
として説明する。（１）は、水素放出管（３）に対して
所定間隔を保ちながら回りを取り囲むように配設されて
いるヒータ、（２）はヒータボックスである。（７）は
前記容器（４）と導入管（５）との２つの機能を合わせ
持つ取付管である。（８）は、前記ヒータボックス
（２）と取付管（７）を固定する固定台である。FIG. 2 is a diagram of a hydrogen discharge device of a different type from FIG.
The same numbers as in FIG. 1 will be described as having the same functions. (1) is a heater which is arranged so as to surround the hydrogen releasing pipe (3) while keeping a predetermined space, and (2) is a heater box. Reference numeral (7) is an attachment pipe having two functions of the container (4) and the introduction pipe (5). (8) is a fixed base for fixing the heater box (2) and the mounting pipe (7).
第３図は、パラジウムに各種金属を混ぜ合わせた各種パ
ラジウム合金での時間と水素の透過速度との関係を表す
グラフである。第４図はそれぞれの圧力の場合での銀含
有量と水素の透過速度との関係を表すグラフである。FIG. 3 is a graph showing the relationship between time and hydrogen permeation rate in various palladium alloys obtained by mixing various metals with palladium. FIG. 4 is a graph showing the relationship between the silver content and the hydrogen permeation rate at each pressure.
次に使用時について説明する。図示しない吸収冷凍機は
機内に不凝縮ガスが存在する。この不凝縮ガス中の水素
ガスは機内の金属部分の腐食により発生するので、常時
このガスを機外に排出することが必要となる。常温では
この水素排出能力が小さいので、水素排出装置の雰囲気
温度を300℃程度までヒータ（１）で加熱し前記水素排
出能力を向上させて水素排出装置を使用していた。又、
従来水素放出管がパラジウムで作製されていたので、水
素放出管では、約295℃で相変態が起こっていた。つま
り、相変態が起こるとき水素の吸蔵量が大きいので、こ
れにより水素放出管の脆化が著しく促進していた。これ
に対し、本発明の水素排出装置では水素放出管（３）を
パラジウム・銀合金で作製してあるので、相変態は常温
で起こる。つまり、水素の吸蔵量の小さいとき相変態が
起こるので、これによって従来のものより水素放出管
（３）の脆化が起こりにくくなった。従って、水素放出
管（３）の寿命を従来のものより延ばすことができる。Next, the time of use will be described. A non-condensable gas exists in the absorption refrigerating machine (not shown). The hydrogen gas in the non-condensable gas is generated by corrosion of the metal part inside the machine, so it is necessary to constantly discharge this gas out of the machine. Since the hydrogen discharging capacity is small at room temperature, the hydrogen discharging apparatus has been used by heating the atmosphere temperature of the hydrogen discharging apparatus up to about 300 ° C. with the heater (1) to improve the hydrogen discharging capacity. or,
Since the hydrogen release tube was conventionally made of palladium, the hydrogen release tube had a phase transformation at about 295 ° C. That is, since the amount of stored hydrogen is large when the phase transformation occurs, the embrittlement of the hydrogen releasing pipe is significantly promoted by this. On the other hand, in the hydrogen discharging apparatus of the present invention, since the hydrogen releasing pipe (3) is made of palladium / silver alloy, the phase transformation occurs at room temperature. In other words, phase transformation occurs when the amount of stored hydrogen is small, so that the hydrogen release pipe (3) is less likely to be embrittled than the conventional one. Therefore, the life of the hydrogen discharge tube (3) can be extended as compared with the conventional one.
また、第３図及び第４図から以下のことが読みとれる。
パラジウム・銀合金では、パラジウムよりも水素の透過
速度が大きい。更に銀の割合が20〜25％であるパラジウ
ム・銀合金は、特に水素の透過速度が大きくなってい
る。つまり、パラジウム・銀合金で作製された水素放出
管（３）では、従来のものより水素排出能力が向上す
る。Further, the following can be read from FIGS. 3 and 4.
The palladium-silver alloy has a higher hydrogen permeation rate than palladium. Further, the palladium-silver alloy having a silver content of 20 to 25% has a particularly high hydrogen permeation rate. In other words, the hydrogen discharge tube (3) made of a palladium / silver alloy has an improved hydrogen discharge capacity as compared with the conventional one.
（ト） 発明の効果 水素放出管がパラジウム・銀合金で作製されているの
で、パラジウムで作製されていた従来のものよりも長寿
命であり、更に水素の排出能力が大きい吸収冷凍機の水
素ガス排出装置が提供できる。(G) Effect of the invention Since the hydrogen release tube is made of palladium / silver alloy, it has a longer life than the conventional one made of palladium, and the hydrogen gas of the absorption refrigerator has a large hydrogen discharge capacity. A discharge device can be provided.
第１図は本発明の一実施例を示した水素ガス排出装置の
断面図、第２図は本発明の他の実施例を示した同装置の
断面図、第３図は時間と水素の透過速度との関係図、第
４図は銀含有量と水素の透過速度との関係図である。 （１）……ヒータ、（３）……水素放出管、（４）……
容器。FIG. 1 is a sectional view of a hydrogen gas discharge device showing an embodiment of the present invention, FIG. 2 is a sectional view of the same device showing another embodiment of the present invention, and FIG. 3 is a time and hydrogen permeation. FIG. 4 is a relationship diagram with the speed, and FIG. 4 is a relationship diagram with the silver content and the hydrogen permeation rate. (1) …… Heater, (3) …… Hydrogen release tube, (4) ……
container.
Claims (1)
されてある水素放出管とを備えている水素ガス排出装置
に於いて、前記水素放出管はパラジウム・銀合金で作製
されてあることを特徴とする吸収冷凍機の水素ガス排出
装置。1. A hydrogen gas discharger comprising a container into which hydrogen gas flows and a hydrogen discharge pipe arranged in the container, wherein the hydrogen discharge pipe is made of a palladium-silver alloy. A hydrogen gas discharge device for an absorption refrigerator, which is characterized by being present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2910787A JPH079327B2 (en) | 1987-02-10 | 1987-02-10 | Hydrogen gas discharge device for absorption refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2910787A JPH079327B2 (en) | 1987-02-10 | 1987-02-10 | Hydrogen gas discharge device for absorption refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63197857A JPS63197857A (en) | 1988-08-16 |
| JPH079327B2 true JPH079327B2 (en) | 1995-02-01 |
Family
ID=12267110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2910787A Expired - Fee Related JPH079327B2 (en) | 1987-02-10 | 1987-02-10 | Hydrogen gas discharge device for absorption refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH079327B2 (en) |
-
1987
- 1987-02-10 JP JP2910787A patent/JPH079327B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63197857A (en) | 1988-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |