JP3844228B2

JP3844228B2 - Hydrolysis exothermic container and method for locking and fitting the same

Info

Publication number: JP3844228B2
Application number: JP2002244622A
Authority: JP
Inventors: 一輝小椋
Original assignee: Dainihon Jochugiku Co Ltd
Current assignee: Dainihon Jochugiku Co Ltd
Priority date: 2002-08-26
Filing date: 2002-08-26
Publication date: 2006-11-08
Anticipated expiration: 2022-08-26
Also published as: JP2004081055A

Description

【０００１】
【産業上の利用分野】
本発明は加水発熱用容器及びその係止嵌着方法に関する。
【０００２】
【従来の技術】
従来、薬剤及び食品などの被加熱物質を収容する容器の加熱方法として、マッチ薬などの点火具を発熱開始手段とし、火薬類または非火薬類に分類されるような加熱物質の燃焼により間接的に被加熱物質を加熱する方法や、また酸化カルシウム等に代表される加水発熱物質に水を供給し得られる水和熱で被加熱物質を加熱するといった方法が利用されてきた。なかでも前記加水発熱物質と水を用いた加熱方法によれば、加熱物質の燃焼による加熱方法と比べ使用時に火花や炎を生じることがなく、また大きな着火音も生じない為に安心して使用することができ、更には被加熱物質の種類に応じて加水量や加水発熱物質の組成を変え発熱量を制御することも容易であることから一般的に広く利用されている。
【０００３】
しかし前記加水発熱物質は、被加熱物質を速やかに加熱できるよう高活性のものが使用される為、水和発熱反応時に高温の水蒸気を噴出し、さらには加水発熱物質が膨潤し体積の増大を招く。そして、場合によっては、前記加水発熱物質を収納する加熱容器が、容器内部の圧力上昇により、変形や亀裂を生じ、更には内容物が漏洩するなどの危険性があった。そのため、従来の加水発熱用容器では、加熱容器の強度を増強し、もしくは、余剰の内圧を緩和する手段を設ける必要があった。これにより、加水発熱用容器の構造や組み立て工程を複雑となし、コストアップにつながるといった問題があった。
【０００４】
前記諸問題を解決する手段としては、これまで幾例かの報告があり、例えば加水発熱物質を収容する空間を仕切る部材が移動可能としたもの（特開2000-308451）や、加水発熱物質を収容した空間と外部とを連通する微孔を設けたもの（特開平4−96754）を例示できる。前者は加熱物質と被加熱物質を収容する空間を内分する仕切り板が内圧を緩和する方向に移動可能としたものであるが、容器構造が複雑となるだけでなく、仕切り板によって被加熱物質に対する伝熱が妨げられることから、十分な加熱を得られない可能性がある。また後者は加熱容器の圧力室と外部とを連通するスリット状の切れ目を設けることを特徴としているが、これは水蒸気の噴圧の上昇を緩和することは可能であっても加水発熱物質の膨潤圧に対処できていない。
【０００５】
また、従来の加熱発熱用容器では、加熱容器が耐熱容器内で充分に固定収納されていないことから、輸送や保管中、あるいは、使用時の衝撃などで加熱容器が変形、もしくは内容物の漏洩、さらに加熱容器が収納容器外に脱着する等の危険性を有している。また、容易に加熱容器を外部に取り出すことが可能であるなど、安全性及び品質に関わる諸問題への対応について充分に検討されていないのが現状である。
【０００６】
【発明が解決しようとする課題】
本発明では、前記発熱手段のうち加水発熱物質の水和発熱反応を用いた加熱システムにおいて、課題であった加水発熱物質の膨潤圧、及び水蒸気の噴圧による内圧の上昇を緩和する手段を具備するのは勿論のこと、更には加熱容器が耐熱容器内に確実に設置できる等、安全性に配慮した加水発熱用容器及び係止嵌着方法を提供することを目的とする。
【０００７】
【課題を解決するための手段、ならびに発明の実施の形態】
本発明者らは鋭意検討の結果、加水発熱物質及び被加熱物質を段状に収容し天面が開口している底容器と、この天面及び該底容器の上方周壁外面に被せられ、その天面を覆う上面には複数の噴孔を有し、しかもその側周面の先端周縁が凸状に成形されている蓋体とからなる加熱容器、この加熱容器を収納する耐熱容器、及びこの耐熱容器の内部に設置され該加熱容器を係止嵌着させる為の係止部材からなる加水発熱用容器であって、該加熱容器は前記蓋体の周縁凸状部が該係止部材の上方に設けた嵌着用突起と係止嵌着された後、更に下方に０．１ないし２cmの距離を押し下げられた状態で該耐熱容器に収納され、かつ前記加水発熱物質と水との反応に伴う該加熱容器内の内圧上昇に対応して、前記蓋体の周縁凸状部が前記嵌着用突起までの上方０．１ないし２cmの距離をスライド可能に構成することにより、前記課題を解決するに至った。
【０００８】
加水発熱物質および被加熱物質を段状に収容する底容器は、有底筒体で天面が開口している。給水は、底容器の周壁面および底面の一方または両方に複数個の給水孔を設けることにより行うのが一般的であるが、底容器の天面開口部から加水発熱物質に対し給水することもできる。また、給水孔から粉状または粒状の加水発熱物質の漏洩を防止するために吸水性のフィルム及び不織布のシートで給水孔の内側を覆うのがより望ましい。
【０００９】
蓋体は、底容器の開口面及び上部側壁外面を覆うように成形され、その上面に複数の噴孔を有するとともに上面の側周面先端周縁が外側に凸状を成す逆碗形を呈している。更に前記蓋体の凸状は、耐熱容器内部に設けられた係止部材の嵌着用突起と強固に係止嵌着することを特徴としている。蓋体側周面は、底容器周壁外面に沿って下方にテーパー状に拡がる形状で構成されるのが好ましく、前記底容器の周壁外面と成す角度は、前記凸状部が嵌着用突起を越えて嵌入可能で、かつ嵌入後は元のテーパー状に復元するのに適当な２〜１０°が好ましい。
【００１０】
加熱容器の材質は、被加熱物質に対する伝熱効率の点から、アルミニウムや鋼板など、熱伝導性に優れたものがよく、更に係止部材の嵌着用突起との嵌着が容易でかつ、強固であることが望ましいことから、充分な弾性を有する薄高張力鋼板で構成されるのが好ましい。また、加熱容器に収容する内容物、及びその反応生成物、また保存環境の条件によって容器が腐食する等の恐れがある場合、容器の内外面に樹脂コーティングを施すこともできる。
【００１１】
係止部材の材質は、加水発熱物質の水和反応熱が高温となるために、樹脂材質として例えばポリエチレンテレフタレートやポリカーボネート及びポリプロピレンなど比較的溶融温度が高い樹脂から選択するのが好ましい。さらにその形態は、係止部材上方に設置される嵌着用突起が加熱容器蓋体の凸状部に対し押圧を加えつつ、蓋体凸状部がさらに下方に０．１ないし２cm押し下げた状態で嵌入可能であって、しかも係止嵌着後は、この凸状部が嵌着用突起から脱着ができないものであれば限定しない。また前記係止部材を耐熱容器と一体化することも可能であり、かかる一体化によって部材コストが削減できる他、組み立て工程の簡略化も期待できる。
【００１２】
加熱容器が０．１ないし２cm押し下げた状態で嵌入可能であるとは、加熱容器の内圧が上昇した場合の緩和作用において蓋体のスライド可能な距離に対応しており、これは耐熱容器に収納される加熱容器の蓋体の周縁凸状部が上方に摺動し嵌着用突起により係止されるまでの距離である。その距離は加熱容器の内圧の緩和を可能とするに必要な距離があれば良いが、限られた加水発熱用容器のスペースを有効に利用するために０．１ないし２cmの距離が適当である。
【００１３】
加水発熱物質の水和発熱反応により、表面温度が約100〜300℃の高温となる耐熱容器は、容器設置床面に対し熱的影響を及ぼす可能性がある。さらには使用者が誤って容器に触れ、火傷を負うなどが考えられる為、熱伝導性の低い材料、例えば、厚紙や耐熱性樹脂等を素材とするのが好ましい。なお、これらの材質で耐熱容器表面をコーティング、又は前記素材を用いた成形品を用いて耐熱容器底面を底上げする等の対策を講じることもできる。また、加熱容器及びその内容物を湿度や衝撃などの外的影響力から防護する為、その開口面は樹脂製キャップやフィルム、またアルミ製のイージーオープンエンド蓋等により密封されるのが望ましい。
【００１４】
本発明において加水発熱物質とは、水との接触のみで水和熱を発生する固体の物質であって、酸化カルシウム、塩化カルシウム、塩化マグネシウム、塩化アルミニウム、塩化鉄などを例示できるが、その中でも酸化カルシウムが加熱性能や利便性及びコスト的に優れ好適である。また発生熱量をコントロールするために、前記加水発熱物質の内の１種のみに限らず２種以上を混合し用いても良い。また好ましくは粒径が1.5〜4.0mmの大きさの粒状または圧力成形される何れかの加水発熱物質を使用用途にあわせて底容器又は通水性の袋に充填するのが良い。
【００１５】
本発明の加熱容器は、食品や飲料の加熱および保温のほか、殺虫、防虫、殺菌、消臭、芳香など多岐にわたり利用できる。それらに用いられる製剤としては、例えば殺虫剤、防黴剤、殺菌剤、消臭剤、香料などの単剤またはそれらの複合剤があり、これらに有機発泡剤、さらに必要に応じて発泡補助剤などを加えて燻煙組成物が調製される。なかでも燻煙殺虫剤が最も一般的で本発明を実施するのに好適である。
【００１６】
前記殺虫剤として、ピレスロイド系殺虫成分、カーバメート系殺虫成分、有機リン系殺虫成分、あるいは、フルフェノクスロン、エトキサゾールやピリプロキシフェンで代表される昆虫成長阻害剤等があげられるが、好ましくはピレスロイド系殺虫成分及びカーバメート系殺虫成分から選ばれた１種又は２種が用いられる。ピレスロイド系殺虫成分としては、フェノトリン、ペルメトリン、シフェノトリン、シペルメトリン、アレスリン、プラレトリン、フラメトリン、レスメトリン、エトフェンプロックス等があげられ、害虫に対して速効性でかつ人畜に対して安全性が高いので、屋内外に生息するゴキブリ、ナンキンムシ、シラミ、イエダニ、屋内塵性ダニ類の駆除又は防除に好適である。なお、化学構造中に不斉炭素あるいは二重結合等を含みこれに基づく光学異性体や幾何異性体等が存在する場合は、これらの各々または任意の混合物も含まれる。特に好ましい化合物は、より残効性が期待されるフェノトリン、ペルメトリン、シフェノトリン、シペルメトリンである。またカーバメート系殺虫剤としては、メトキサジアゾン等があげられ、例えばピレスロイド抵抗性ゴキブリの駆除を目的とする場合は、この化合物を配合するのが好ましい。
【００１７】
前記防黴剤、殺菌剤として、２−メルカプトベンゾチアゾール、２−（４−チアゾリル）ベンツイミダゾール、トリホリン、３−メチル−４−イソプロピルフェノール、Ｏ−フェニルフェノールなどを例示できる。また前記消臭剤としては、ラウリル酸メタクリレート、ミリスチン酸アセクリレート、ジフェニルオキサイドなどが挙げられ、さらに香料として、ラベンダー、ジャスミン、ゲラニオール、シトロネロールなどの天然及び合成香料を例示できるが、被加熱物質としての対象は上記成分のみに限定されるものではなく、使用目的と条件に応じて化合物を適宜選択することが出来る。
【００１８】
前記燻煙組成物の有機発泡剤として、熱分解時に主に窒素ガスを発生するアゾジカルボンアミド、ベンゼンスルホニルヒドラジッド、ｐ−トルエンスルホニルヒドラジッド、４，４−オキシビス（ベンゼンスルホニルヒドラジッド）等の各種発泡剤のいずれも使用できる。また発泡補助剤として、酸化亜鉛、炭酸亜鉛、ステアリン酸亜鉛、オクチン酸亜鉛、ステアリン酸カルシウム、尿素、メラミン、グアニジン等を、更に、共力剤、安定剤、香料、賦形剤等を必要ならば、前記有機発泡剤の発泡性能に支障をきたさない限り適宜添加してもよい。
【００１９】
【実施例】
次に、図１〜図６に基づき本発明の実施の形態を説明するが、本実施の形態は以下の具体例のみに限定されるものではない。
【００２０】
図１は加水発熱用容器の断面を示す。本発明の加水発熱用容器〔１〕は、加水発熱物質〔２〕及び被加熱物質〔３〕を段状に収容した、有底筒状の底容器〔４〕と、複数の噴孔〔６〕を有する上面及びさらにその側周面の先端周縁部が外側に凸状を成す逆碗形の蓋体〔５〕からなる加熱容器〔７〕、さらに上部に嵌着用突起〔１１〕を設置した係止部材〔９〕並びに耐熱容器〔８〕から構成されている。
【００２１】
また、図２では、加水発熱用容器の係止部材を耐熱容器と一体化した場合の具体例を示す。該加熱容器を、係止部材一体型耐熱容器〔１０〕の上方開口面から挿入することにより、該加熱容器の蓋体凸状部は、上部に嵌着用突起を設置した係止部材一体型耐熱容器〔１０〕と強固に係止嵌着される。このように一体成形することで、目的とする機能を損なうことなく、さらには一体化により部材コストが削減できる他、組み立て工程の簡略化も期待されることから好適である。
【００２２】
図３〜図５に係止部材〔９〕と加熱容器〔７〕の係止嵌着方法の作用を示す。図３のように、加熱容器〔７〕は、耐熱容器内に設置される係止部材〔９〕の上方に設けた嵌着用突起〔１１〕に対し開口上面から下方に挿入される。このとき蓋体側周面の凸状部〔１２〕は、嵌着用突起〔１１〕からの押圧を受けつつ、嵌着用突起を通過して係止嵌着され（図４）、本発明ではさらに下方に０．１ないし２cmの距離を押し下げられる（図５）。また蓋体側周面を下方に向かってテーパー状に拡げ、底容器側壁面外面となす角度を２〜10°に形成すれば、係止嵌着後、前記側周面は弾性的に元のテーパー状に復元されるので、凸状部〔１２〕の嵌着用突起〔１１〕に対する係止嵌着はさらに強固になる。
【００２３】
加熱容器は、蓋体の凸状部と係止部材上方に設置される嵌着用突起〔１１〕によって強固に係止嵌着されることから、加熱容器が耐熱容器〔８〕外へ脱着することがなく、輸送及び保管時の衝撃などで加熱容器が変形、または亀裂を生じるなどの危険を防止できる。また、複雑な部材を新たに設けることなく、前記作用を簡易に奏しえることから、経済性のみならず、高い安全性と品質を有している。
【００２４】
図６は、加水発熱用容器の加水発熱開始時において内圧が急激に上昇した場合の内圧緩和の作用について示す。加水発熱物質〔２〕と水との水和発熱反応により発生する加水発熱物質〔２〕の膨潤圧及び水蒸気の噴圧が加熱容器の内圧を過度に上昇させた場合においても、蓋体側周面〔１４〕は、底容器の上方周壁外面〔１５〕に沿って、嵌着用突起〔１１〕までの０．１ないし２cmの距離を上方にスライドし、内容積を拡張させるので内圧が緩和される。
【００２５】
【試験例】
次の表１及び２に示す試験例によりさらに具体的に説明するが、本発明の範囲は下記に限定されるものではない。
【００２６】
試験例１．フェノトリン1.0ｇ、メトキサジアゾン0.8ｇ、アゾジカルボンアミド9.84ｇ、及び酸化亜鉛0.36ｇを混合してなる、粉状の燻煙殺虫組成物12ｇをポリエチレンセロハンフィルム袋に封入して本試験で用いる燻煙殺虫剤袋、さらに、香料（ラベンダーオイル）をセルロースシートに含浸して本試験で用いる香料蒸散剤の夫々を調製した。
底面に複数個の給水孔を設け、酸化カルシウム40ｇと前記薬剤の夫々を段状に設置した底容器と、噴孔を複数個（φ7ｍｍ×7個）設けた蓋体とから構成され、前記底容器の開口面を前記蓋体で覆った加熱容器（φ50ｍｍ×ｈ50ｍｍ）を用いた。また耐熱容器内には、係止部材を設置し、その上方に嵌着用突起を設けた。前記加熱容器を、耐熱容器の上部開口面から挿入し、加熱容器の周縁凸状部を嵌着用突起と係止嵌着してなお２cm押し下げて本発明の加水発熱用容器〔本発明の加水発熱用容器１〕とした。
対照例として、蓋体と底容器が固定され、内圧緩和作用を有さない前記加熱容器を用いた。すなわち、上部に嵌着用突起を有する係止部材を設けた耐熱容器の上部開口面から前記加熱容器を挿入し、加熱容器の周縁凸状部を嵌着用突起と係止嵌着してなお２cm押し下げて収納した加水発熱用容器を〔対照例１〕とした。
上記それぞれの供試試料につき、加熱容器の酸化カルシウムに水２０ｍｌを供給して加水発熱反応を開始させた。なお、酸化カルシウムは、選択した被加熱物質の蒸散に適当な活性のものを用いた。加水発熱用容器の外観及び性状の変化を観察した結果を表１に示す。
【００２７】
【表１】

【００２８】
試験例１の結果から、本発明の加水発熱用容器は、加熱容器の内圧の上昇と共に、蓋体の側周面が底容器の側壁外面に沿って上方にスライドし、容積を拡張させ内圧を緩和できることが確認された。また、加水発熱後の容器外観及び性能に著変は認められなかった。
加水発熱物質の活性に応じ、内圧の上昇に差異がある為、蓋体のスライド距離は、０．１ないし２cmの幅で変動した。一方、対照例１では蓋体と底容器を固定した加熱容器を用いた為に、内圧の上昇を緩和できず加熱容器に変形が生じた。さらにそれが過度であった場合、加熱容器に亀裂を生じ内容物が漏洩した。以上のことから、本発明は、加水発熱物質の膨潤圧及び水蒸気の噴圧による内圧の上昇を緩和せしめ、安全性に優れた加水発熱用容器ならびにその係止嵌着方法を提供する。
【００２９】
試験例２．フェノトリン1.0ｇ、メトキサジアゾン0.8ｇ、アゾジカルボンアミド9.84ｇ、及び酸化亜鉛0.36ｇを混合してなる、粉状の燻煙殺虫組成物12ｇをポリエチレンセロハンフィルム袋に封入して本試験で用いる燻煙殺虫剤袋を調製した。
底面に複数個の給水孔を設けた底容器に、酸化カルシウム40ｇと前記薬剤の夫々を段状に設置し、さらに噴孔を複数個（φ7ｍｍ×7個）設けた蓋体で、前記底容器の開口面を覆った加熱容器（φ50ｍｍ×ｈ50ｍｍ）を用いた。上部に嵌着用突起を有する係止部材を設けた耐熱容器の上部開口面から前記加熱容器を挿入し、加熱容器の周縁凸状部は嵌着用突起と係止嵌着してなお２cm押し下げて本発明の加水発熱用容器〔本発明の加水発熱用容器〕とした。
また、前記加水発熱用容器の蓋体側周面と底容器側壁外面とがなす角度を０°、２°、１０°または１５°とした。それぞれの加水発熱用容器は、振盪機を用いて十分に振動を与えた後、水20ｍLを加熱容器の酸化カルシウムに供給して加水発熱反応を開始させた。加水発熱用容器の外観及び性状の変化を観察した結果を表２に示す。
【００３０】
【表２】

【００３１】
試験例２の結果より、蓋体側周面と底容器側壁外面がなす角度が２°以上である場合、係止嵌着に緩みは生じなかった。また、蓋体側周面と底容器側壁外面とがなす角度が１５°以上の場合、加熱容器凸状部の嵌着用突起への係止嵌着が困難となるため、２°ないし１０°の範囲がより好ましかった。以上より本発明による加水発熱用容器及び係止嵌着方法は、振動及び衝撃等の外的影響から加熱容器を防護するとともに、耐熱容器外への脱着を防止するのに好適であるといえる。
【００３２】
【発明の効果】
本発明による加水発熱用容器及び係止嵌着方法によれば、水和発熱反応時の内圧の急激な上昇時において、水蒸気や内容物の噴出、及び容器の亀裂など、加熱容器の内圧の上昇に伴う危険を未然に防止することが可能である。また、輸送や保管時及び使用時において、加水発熱用容器を外的圧力から防護し、更には加熱容器の耐熱容器外への脱着が制限されることから、安全性および品質の向上を安価に提供できる。
【図面の簡単な説明】
【図１】加水発熱用容器の断面図を示す。
【図２】耐熱容器と係止部材の一体化例を示す。
【図３】係止部材と加熱容器の係止嵌着方法の作用の係止嵌着前の状態を示す。
【図４】係止部材と加熱容器の係止嵌着方法の作用の係止嵌着の状態を示す。
【図５】係止部材と加熱容器の係止嵌着方法の作用の係止嵌着後の状態を示す。
【図６】内圧緩和の作用を示す。 [0001]
[Industrial application fields]
The present invention relates to a hydrothermal container and a method for engaging and fitting the same.
[0002]
[Prior art]
Conventionally, as a method of heating a container for containing a substance to be heated such as a medicine and food, an ignition device such as a match medicine is used as a heat generation start means, and indirectly by the combustion of a heating substance classified as explosives or non-explosives. In addition, a method of heating a material to be heated and a method of heating a material to be heated with heat of hydration obtained by supplying water to a hydrothermal exothermic material typified by calcium oxide have been used. Above all, according to the heating method using the hydrothermal substance and water, compared to the heating method by burning the heating substance, there is no spark or flame at the time of use, and since there is no loud ignition sound, it is used with peace of mind. In addition, it is generally widely used because it is easy to control the amount of heat generated by changing the amount of water added or the composition of the heat generating material depending on the type of the material to be heated.
[0003]
However, since the hydrothermal exothermic substance is highly active so that the heated material can be heated quickly, high-temperature water vapor is ejected during the hydration exothermic reaction, and the hydrothermal exothermic substance swells and increases its volume. Invite. In some cases, there is a risk that the heating container that stores the hydrothermal exothermic material may be deformed or cracked due to an increase in pressure inside the container, and the contents may leak. Therefore, it is necessary to provide means for increasing the strength of the heating container or alleviating the excess internal pressure in the conventional hydration exothermic container. As a result, there is a problem that the structure and assembly process of the water heating exothermic container are complicated and the cost is increased.
[0004]
As means for solving the above-mentioned problems, there have been several reports so far, for example, a member that partitions a space for containing a hydropyrogen can be moved (Japanese Patent Laid-Open No. 2000-308451), Examples thereof include those provided with micropores that allow communication between the accommodated space and the outside (JP-A-4-96754). In the former, the partition plate that internally divides the space for containing the heated material and the heated material is movable in a direction that relieves the internal pressure, but not only the container structure becomes complicated, but the heated material is separated by the partition plate. Since heat transfer to is hindered, there is a possibility that sufficient heating cannot be obtained. The latter is characterized by providing slit-shaped cuts that communicate the pressure chamber of the heating vessel with the outside. Can't cope with pressure.
[0005]
In addition, in the conventional heating and heating container, the heating container is not sufficiently fixed and stored in the heat-resistant container, so that the heating container is deformed or the contents leak due to impact during transportation or storage or use. Furthermore, there is a risk that the heating container is detached from the storage container. Moreover, the present condition is that it has not fully examined about the response | compatibility to safety and quality related problems, such as being able to take out a heating container easily outside.
[0006]
[Problems to be solved by the invention]
In the present invention, in the heating system using the hydration exothermic reaction of the hydrothermal exothermic substance among the exothermic means, there are provided means for alleviating the increase in the swelling pressure of the hydrothermal exothermic substance and the internal pressure due to the water vapor jet pressure. Of course, it is an object of the present invention to provide a container for water heating and an engagement fitting method in consideration of safety such that the heating container can be surely installed in the heat-resistant container.
[0007]
Means for Solving the Problem, and Embodiment of the Invention
As a result of intensive studies, the inventors of the present invention have covered a bottom container in which a hydrothermal exothermic substance and a substance to be heated are stepped and the top surface is open, and the top surface and the outer surface of the upper peripheral wall of the bottom container. A heating container having a plurality of nozzle holes on the upper surface covering the top surface, and a lid body whose tip peripheral edge is formed in a convex shape, a heat-resistant container for storing the heating container, and this A hydrothermal heating container comprising a locking member installed inside a heat-resistant container for locking and fitting the heating container, wherein the heating container has a peripheral convex portion of the lid above the locking member. After being fitted to the fitting protrusion provided on the inner surface, and further stored in the heat-resistant container in a state where the distance of 0.1 to 2 cm is pushed downward, and accompanying the reaction between the hydrothermal exothermic substance and water Corresponding to the increase in the internal pressure in the heating container, the peripheral convex portion of the lid body extends to the fitting projection. It How 0.1 By configuring the distance 2cm slidably, leading to solving the problems.
[0008]
The bottom container that accommodates the hydrolyzing exothermic substance and the heated substance in a step shape is a bottomed cylindrical body having an open top surface. Water supply is generally performed by providing a plurality of water supply holes on one or both of the peripheral wall surface and the bottom surface of the bottom container. However, water can be supplied to the hydropyrogenic substance from the top surface opening of the bottom container. it can. It is more desirable to cover the inside of the water supply hole with a water-absorbing film and a non-woven sheet in order to prevent leakage of powdery or granular hydrothermal exothermic substances from the water supply hole.
[0009]
The lid body is shaped so as to cover the opening surface of the bottom container and the outer surface of the upper side wall, has a plurality of nozzle holes on the upper surface, and exhibits an inverted saddle shape in which the peripheral edge of the top surface of the side surface is convex outward. Yes. Further, the convex shape of the lid body is characterized in that it is firmly engaged with a fitting projection of an engaging member provided inside the heat-resistant container. It is preferable that the lid-side peripheral surface is configured to have a shape that tapers downward along the outer surface of the peripheral wall of the bottom container, and the angle formed with the outer surface of the peripheral wall of the bottom container is such that the convex portion exceeds the fitting protrusion. It is preferably 2 to 10 ° which can be inserted and is suitable for restoring the original taper shape after the insertion.
[0010]
The material of the heating container should be excellent in thermal conductivity, such as aluminum and steel plate, in terms of heat transfer efficiency with respect to the material to be heated, and can be easily and firmly fitted with the fitting protrusion of the locking member. Since it is desirable, it is preferable to be composed of a thin high tensile steel plate having sufficient elasticity. Moreover, when there is a possibility that the container is corroded depending on the contents accommodated in the heating container, the reaction product thereof, and the conditions of the storage environment, a resin coating can be applied to the inner and outer surfaces of the container.
[0011]
The material of the locking member is preferably selected from resins having a relatively high melting temperature such as polyethylene terephthalate, polycarbonate, and polypropylene because the hydration reaction heat of the hydrothermal exothermic substance becomes high. Furthermore, the form is such that the fitting protrusions installed above the locking member press the convex part of the heating container lid, while the convex part of the lid is further pushed down by 0.1 to 2 cm. There is no limitation as long as it can be inserted and the convex portion cannot be detached from the fitting projection after the locking fitting. In addition, the locking member can be integrated with the heat-resistant container. By such integration, the member cost can be reduced and the assembly process can be simplified.
[0012]
The fact that the heating container can be inserted in a state of being pushed down by 0.1 to 2 cm corresponds to the slidable distance of the lid in the relaxation action when the internal pressure of the heating container increases, and this is stored in the heat-resistant container. It is a distance until the peripheral convex part of the lid body of the heating container to be slid upward and locked by the fitting protrusion. The distance may be as long as necessary to allow the internal pressure of the heating container to be relaxed, but a distance of 0.1 to 2 cm is appropriate in order to effectively use the limited space for heating the water. .
[0013]
A heat-resistant container having a surface temperature of about 100 to 300 ° C. due to a hydration exothermic reaction of a hydrothermal substance may have a thermal effect on the floor of the container. Furthermore, since the user may accidentally touch the container and get burned, it is preferable to use a material with low thermal conductivity, such as cardboard or heat resistant resin. It is also possible to take measures such as coating the surface of the heat-resistant container with these materials, or raising the bottom surface of the heat-resistant container using a molded product using the material. Also, in order to protect the heating container and its contents from external influences such as humidity and impact, it is desirable that the opening surface be sealed with a resin cap or film, an aluminum easy open end lid, or the like.
[0014]
In the present invention, the hydrothermal exothermic substance is a solid substance that generates heat of hydration only by contact with water, and examples thereof include calcium oxide, calcium chloride, magnesium chloride, aluminum chloride, and iron chloride. Calcium oxide is preferred because of its excellent heating performance, convenience, and cost. In order to control the amount of generated heat, not only one kind of the hydrothermal exothermic substance but also two or more kinds may be mixed and used. Moreover, it is preferable to fill the bottom container or the water-permeable bag with any hydropyrogenic material that is granular or pressure-molded with a particle size of 1.5 to 4.0 mm according to the intended use.
[0015]
The heating container of the present invention can be used in a wide variety of applications such as heating and heat retention of foods and beverages, as well as insecticidal, insecticidal, sterilizing, deodorizing, and aroma. Examples of the preparations used for these include single agents such as insecticides, fungicides, bactericides, deodorants, and fragrances, or composite agents thereof. These include organic foaming agents, and if necessary, foaming aids. Etc. are added to prepare a smoke composition. Among these, smoke insecticides are the most common and suitable for practicing the present invention.
[0016]
Examples of the insecticide include pyrethroid insecticides, carbamate insecticides, organophosphorus insecticides, or insect growth inhibitors represented by flufenoxuron, etoxazole and pyriproxyfen, preferably pyrethroids One or two selected from insecticidal components and carbamate insecticidal components are used. Pyrethroid insecticides include phenothrin, permethrin, ciphenothrin, cypermethrin, allethrin, praretrin, framethrin, resmethrin, etofenprox, etc. It is suitable for controlling or controlling cockroaches, bedbugs, lice, house dust mites, and indoor dust mites that live indoors and outdoors. In addition, when an asymmetric carbon or a double bond is included in the chemical structure and an optical isomer, a geometric isomer, or the like based on the asymmetric carbon or a double bond is present, each or any mixture thereof is also included. Particularly preferred compounds are phenothrin, permethrin, ciphenothrin, and cypermethrin, which are expected to have a long lasting effect. Further, examples of the carbamate insecticide include methoxadiazone and the like. For example, when the purpose is to control pyrethroid-resistant cockroaches, it is preferable to add this compound.
[0017]
Examples of the antifungal agent and fungicide include 2-mercaptobenzothiazole, 2- (4-thiazolyl) benzimidazole, triphorin, 3-methyl-4-isopropylphenol, O-phenylphenol and the like. Examples of the deodorant include lauric acid methacrylate, myristic acid acrylate, diphenyl oxide, and the like, and examples of the fragrance include natural and synthetic fragrances such as lavender, jasmine, geraniol, citronellol, etc. The target is not limited to the above components, and a compound can be appropriately selected according to the purpose and conditions of use.
[0018]
Examples of the organic foaming agent for the soot composition include azodicarbonamide, benzenesulfonyl hydrazide, p-toluenesulfonyl hydrazide, 4,4-oxybis (benzenesulfonyl hydrazide) that mainly generate nitrogen gas during thermal decomposition. Any of various foaming agents can be used. As foaming aids, zinc oxide, zinc carbonate, zinc stearate, zinc octoate, calcium stearate, urea, melamine, guanidine, etc., and synergists, stabilizers, fragrances, excipients, etc. are necessary. As long as the foaming performance of the organic foaming agent is not hindered, it may be added as appropriate.
[0019]
【Example】
Next, embodiments of the present invention will be described with reference to FIGS . 1 to 6 , but the present embodiments are not limited to the following specific examples.
[0020]
FIG. 1 shows a cross section of a container for water heating. The hydrothermal exothermic container [1] of the present invention includes a bottomed cylindrical bottom container [4] containing a hydrothermal exothermic substance [2] and a heated substance [3] in a step shape, and a plurality of nozzle holes [6]. ] And a heating container [7] composed of an inverted saddle-shaped lid [5] whose outer peripheral edge is convex outwardly, and a fitting projection [11] on the upper part. It consists of a locking member [9] and a heat-resistant container [8].
[0021]
Moreover, in FIG. 2, the specific example at the time of integrating the latching member of the container for hydrolysis heat_generation | fever with a heat-resistant container is shown. By inserting the heating container from the upper opening surface of the locking member-integrated heat resistant container [10], the lid convex portion of the heating container has a locking member-integrated heat resistance in which a fitting protrusion is installed on the upper part. The container [10] is firmly locked and fitted. By integrally molding in this way, it is preferable since the member cost can be reduced by the integration without impairing the intended function and the assembly process can be simplified.
[0022]
3 to 5 show the operation of the locking fitting method of the locking member [9] and the heating container [7]. As shown in FIG. 3, the heating container [7] is inserted downward from the upper surface of the opening into the fitting projection [11] provided above the locking member [9] installed in the heat-resistant container. At this time, the convex part [12] on the peripheral surface of the lid body is locked and fitted through the fitting protrusion while being pressed by the fitting protrusion [11] (FIG. 4). To a distance of 0.1 to 2 cm (FIG. 5) . Moreover, if the lid side peripheral surface is expanded downward in a taper shape and the angle formed with the outer surface of the bottom container side wall is 2 to 10 °, the side peripheral surface is elastically restored to the original taper after engaging and fitting. Since the shape is restored, the engagement of the convex portion [12] with the fitting protrusion [11] is further strengthened.
[0023]
The heating container is firmly locked and fitted by the fitting projection [11] installed above the convex portion of the lid and the locking member, so that the heating container is detached from the heat-resistant container [8]. Therefore, it is possible to prevent a risk that the heating container is deformed or cracked due to an impact during transportation and storage. Moreover, since the said effect | action can be show | played easily, without providing a complicated member newly, it has not only economical efficiency but high safety | security and quality.
[0024]
FIG. 6 shows the action of internal pressure relaxation when the internal pressure suddenly rises at the start of hydrothermal exotherm of the hydrothermal exothermic container. Even if the swelling pressure of the hydrothermal exothermic substance [2] generated by the hydration exothermic reaction between the hydrothermal exothermic substance [2] and water and the water vapor jet pressure excessively increase the internal pressure of the heating container, the lid side peripheral surface [14] slides the distance of 0.1 to 2 cm up to the fitting projection [11] along the upper peripheral wall outer surface [15] of the bottom container and expands the internal volume, thereby reducing the internal pressure. .
[0025]
[Test example]
Although it demonstrates further more concretely by the test example shown to the following Table 1 and 2, the scope of the present invention is not limited to the following.
[0026]
Test Example 1 Smoke insecticide used in this test by encapsulating 12 g of a powdery smoke insecticidal composition in which 1.0 g of phenothrin, 0.8 g of methoxadiazone, 9.84 g of azodicarbonamide, and 0.36 g of zinc oxide are enclosed in a polyethylene cellophane film bag. Each of the fragrance transpiration agents used in this test was prepared by impregnating a cellulose bag with a sachet and a fragrance (lavender oil).
The bottom is provided with a plurality of water supply holes, a bottom container in which 40 g of calcium oxide and each of the chemicals are provided in a step shape, and a lid body having a plurality of injection holes (φ7 mm × 7 pieces). A heated container (φ50 mm × h50 mm) in which the opening surface of the container was covered with the lid was used. Further, a locking member was installed in the heat resistant container, and a fitting protrusion was provided above the locking member. The heating container is inserted from the upper opening surface of the heat-resistant container, and the peripheral convex portion of the heating container is engaged with the fitting protrusion, and is further pushed down by 2 cm, and the container for hydrothermal heating of the present invention [hydrothermal heating of the present invention] Container 1].
As a control example, the heating container in which the lid and the bottom container are fixed and does not have an internal pressure relaxation action was used. That is, the heating container is inserted from the upper opening surface of the heat-resistant container provided with a locking member having a fitting projection on the top, and the peripheral convex portion of the heating container is fitted and fitted to the fitting projection, and is further pushed down by 2 cm. The container for hydrothermal exotherm stored as [Control Example 1].
About each said test sample, 20 ml of water was supplied to the calcium oxide of a heating container, and the hydrolysis exothermic reaction was started. Note that calcium oxide having an activity suitable for transpiration of the selected material to be heated was used. Table 1 shows the results of observing changes in the appearance and properties of the hydrothermal exothermic container.
[0027]
[Table 1]

[0028]
From the results of Test Example 1, the container for hydrothermal heat generation according to the present invention slides the side peripheral surface of the lid upward along the outer surface of the side wall of the bottom container as the internal pressure of the heating container increases, thereby expanding the volume and reducing the internal pressure. It was confirmed that it could be relaxed. In addition, no remarkable change was observed in the appearance and performance of the container after the exothermic heat.
Depending on the activity of the hydropyrogen, there was a difference in the increase in internal pressure, so the sliding distance of the lid varied between 0.1 and 2 cm. On the other hand, in the control example 1, since the heating container in which the lid and the bottom container were fixed was used, the increase in the internal pressure could not be alleviated, and the heating container was deformed. Furthermore, when it was excessive, the heating container cracked and the contents leaked. In view of the above, the present invention provides a hydrating exothermic container excellent in safety and a method for engaging and fitting the hydrating exothermic substance to alleviate the increase in the internal pressure due to the swelling pressure of the hydrothermal exothermic substance and the water vapor jet pressure.
[0029]
Test Example 2 Smoke insecticide used in this test by encapsulating 12 g of a powdery smoke insecticidal composition in which 1.0 g of phenothrin, 0.8 g of methoxadiazone, 9.84 g of azodicarbonamide, and 0.36 g of zinc oxide are enclosed in a polyethylene cellophane film bag. A drug bag was prepared.
In the bottom container provided with a plurality of water supply holes on the bottom surface, 40 g of calcium oxide and each of the chemicals are installed in a step shape, and a lid body provided with a plurality of nozzle holes (φ7 mm × 7 pieces), the bottom container A heating vessel (φ50 mm × h50 mm) covering the opening surface of was used. The heating container is inserted from the upper opening surface of the heat-resistant container provided with a locking member having a fitting projection on the top, and the peripheral convex portion of the heating container is fitted and fitted with the fitting projection, and is further pushed down by 2 cm. The container for hydrothermal exotherm of the invention [the container for hydrothermal exotherm of the present invention] was obtained.
In addition, the angle formed by the lid side peripheral surface of the hydration exothermic container and the outer surface of the bottom container side wall was 0 °, 2 °, 10 °, or 15 °. Each hydrothermal exothermic container was sufficiently vibrated using a shaker, and then 20 mL of water was supplied to calcium oxide in the heating container to start the hydrothermal exothermic reaction. Table 2 shows the results of observing changes in the appearance and properties of the hydrothermal exothermic container.
[0030]
[Table 2]

[0031]
From the results of Test Example 2, when the angle formed by the lid side peripheral surface and the outer surface of the bottom container side wall was 2 ° or more, the locking fit did not loosen. Further, when the angle formed by the lid-side peripheral surface and the outer surface of the bottom container side wall is 15 ° or more, it becomes difficult to engage the fitting projection of the heating container convex portion with the fitting projection, and therefore the range of 2 ° to 10 °. Was more preferred. From the above, it can be said that the hydration exothermic container and the locking fitting method according to the present invention are suitable for protecting the heating container from external influences such as vibration and impact and for preventing the desorption from the heat-resistant container.
[0032]
【The invention's effect】
According to the hydration exothermic container and the locking fitting method according to the present invention, when the internal pressure during the hydration exothermic reaction suddenly rises, the internal pressure of the heating container rises, such as ejection of water vapor and contents, and cracking of the container. It is possible to prevent the danger associated with. In addition, it protects the water heating exothermic vessel from external pressure during transportation, storage and use, and further restricts the attachment and removal of the heated container from the heat-resistant container. Can be provided.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a water heating exothermic container.
FIG. 2 shows an integrated example of a heat-resistant container and a locking member.
FIG. 3 shows a state before locking and fitting of the operation of the locking and fitting method of the locking member and the heating container.
FIG. 4 shows a state of locking fitting of the operation of the locking fitting method of the locking member and the heating container.
FIG. 5 shows a state after locking and fitting of the operation of the locking and fitting method of the locking member and the heating container.
FIG. 6 shows the action of internal pressure relaxation.

Claims

A bottom container that contains a hydrothermal exothermic substance and a material to be heated and has a top surface that is open, and a top surface that covers the top surface and the top surface of the bottom container. A heating container comprising a lid having a hole and having a convex peripheral edge on the side circumferential surface thereof, a heat-resistant container for storing the heating container, and the heating container installed inside the heat-resistant container The heating container includes a locking member for locking and fitting the cover, and the heating container is engaged with a fitting protrusion provided on a peripheral projection of the lid above the locking member. It is accommodated in the heat-resistant container in a state where the distance of 0.1 to 2 cm is further pushed down after being fixedly fitted, and corresponds to the increase in internal pressure in the heating container due to the reaction between the hydrothermal substance and water Then, the peripheral convex portion of the lid body is 0.1 to 2c above the fitting projection. Hydrolytic heating container, characterized in that to constitute a distance slidably.

The container for water heating according to claim 1, wherein the locking member is a resin molded body.

The side surface of the lid made of a thin and high-strength steel plate having sufficient elasticity is expanded downward in a tapered shape so that the angle formed with the outer surface of the peripheral wall of the bottom container is 2 to 10 °. The container for hydrothermal heat generation according to claim 1 or 2, characterized in that the fastening is firmly fixed.

The container for heating and heating according to any one of claims 1 to 3, wherein the heating substance for heating is calcium oxide and the substance to be heated is a smoke insecticide.