JPH06135488A - Container made of foamed material with internal bag - Google Patents
Container made of foamed material with internal bagInfo
- Publication number
- JPH06135488A JPH06135488A JP4289084A JP28908492A JPH06135488A JP H06135488 A JPH06135488 A JP H06135488A JP 4289084 A JP4289084 A JP 4289084A JP 28908492 A JP28908492 A JP 28908492A JP H06135488 A JPH06135488 A JP H06135488A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- temperature
- liquid
- plate
- heat
- 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- Withdrawn
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Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、内袋を有する発泡体製
コンテナ、特に内袋内に一定温度範囲に保持することを
要する液状化学品等の特殊な充填液を収納するに適した
輸送及び貯蔵用発泡体製コンテナに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam container having an inner bag, and particularly to a container suitable for containing a special filling liquid such as a liquid chemical which needs to be kept in a certain temperature range in the inner bag. And a foam container for storage.
【0002】[0002]
【従来の技術】一般に、特殊な液体、例えばトリメチロ
ールプロパン(凝固点59℃)を輸送或いは貯蔵する手
段としては、2〜3トンのタンクローリ車で該タンクに
ヒータを設置すると共に周囲に断熱被覆を施し、輸送或
いは貯蔵時にヒータで常に凝固点以上に加熱することが
できる専用車両が用いられている。この専用車両を使用
する場合には、納入先にも更に加熱手段と保温機能を有
するタンクが必要とされる。また、本発明と同様に内袋
を使用して上記のような充填液を輸送或いは貯蔵する場
合に、内袋口栓部より電熱式のパイプヒータを投入して
充填液を加熱保温する方法も知られている。2. Description of the Related Art Generally, as a means for transporting or storing a special liquid such as trimethylolpropane (freezing point 59 ° C.), a heater is installed in a tank truck of 2 to 3 tons and a heat insulating coating is provided around the tank. A dedicated vehicle is used which can be constantly heated to a temperature above the freezing point with a heater during application, transportation or storage. When this dedicated vehicle is used, the delivery destination also needs a tank having a heating means and a heat retaining function. Further, when transporting or storing the above-mentioned filling liquid using the inner bag as in the present invention, there is also a method in which an electric heating type pipe heater is put in from the inner bag mouth plug portion to heat and keep the filling liquid warm. Are known.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記し
た専用車両は非常に高価で設備費がかさみ、かつ取扱い
量の減少時には、稼働率が低下して固定費負担が大幅増
となる。しかも、納入先にも特別なタンクが必要とされ
るため、一層設備負担が大きくなる、等の問題点があ
る。However, the above-mentioned dedicated vehicle is very expensive, the equipment cost is high, and when the handling amount decreases, the operating rate decreases and the fixed cost burden increases significantly. In addition, since a special tank is required at the delivery destination, there is a problem that the facility load is further increased.
【0004】一方、内袋に電熱式ヒータを投入する方法
では、パイプヒータを挿入するための大径の口栓部が
内袋に必要とされる、充填液を汚染しやすく、これを
防止するためにはヒータの清浄度維持のための手段や操
作が要求され面倒である、液の充填、排出のたびにヒ
ータを挿入、取出し等を行なわなければならない、液
の残量が少なくなった場合ヒータが露出し温度が安定し
ない、等の問題点がある。On the other hand, in the method of inserting the electrothermal heater into the inner bag, a large-diameter plug portion for inserting the pipe heater is required in the inner bag, which easily contaminates the filling liquid and prevents it. In order to maintain the cleanliness of the heater, it is troublesome, the heater must be inserted and taken out each time the liquid is filled and discharged, and when the remaining amount of the liquid is low There is a problem that the heater is exposed and the temperature is not stable.
【0005】本発明はこのような専用車両或いはパイプ
ヒータの持つ問題点を解消し、非常にコストの安価であ
るにもかかわらず断熱・保温機能に優れ、また充填液を
汚染せず液量が減っても温度調節に問題なく、全体の作
業が簡単であり、しかも納入先においてもそのまま貯蔵
用として用いることができるコンテナを提供することを
目的とする。The present invention solves the problems of such a dedicated vehicle or pipe heater, and is excellent in heat insulation and heat retention functions despite the fact that the cost is very low, and the amount of liquid does not contaminate the filling liquid. It is an object of the present invention to provide a container that does not have a problem in temperature control even if it is reduced, the whole work is simple, and can be used as it is for storage at the delivery destination.
【0006】[0006]
【課題を解決するための手段】このような目的を達成す
るための本発明の要旨は次の通りである。 (1)発泡体にて形成した本体内部に充填液を収納する
ための内袋を有するコンテナであって、本体底部発泡体
の内面と内袋との間に、板状のヒータを配置したことを
特徴とする内袋を有する発泡体製コンテナ。 (2)板状ヒータと本体間に、該ヒータの面積の少なく
とも1.5倍の面積を有する放熱板を設置したことを特
徴とする上記(1)記載のコンテナ。 (3)ヒータと本体間に温度センサを設けると共に、該
センサに温度調節器を接続して充填液温を一定範囲にコ
ントロールすることを特徴とする上記(1)または
(2)記載のコンテナ。The gist of the present invention for achieving such an object is as follows. (1) A container having an inner bag for accommodating a filling liquid inside a body formed of foam, in which a plate-shaped heater is arranged between the inner surface of the body bottom foam and the inner bag. A foam container having an inner bag characterized by: (2) The container according to (1) above, wherein a heat dissipation plate having an area of at least 1.5 times the area of the heater is installed between the plate heater and the main body. (3) The container according to (1) or (2), wherein a temperature sensor is provided between the heater and the main body, and a temperature controller is connected to the sensor to control the temperature of the filling liquid within a certain range.
【0007】[0007]
【作用】コンテナ本体が発泡体製であるため断熱性があ
り、また内袋下部にはヒータが設けられているためコン
テナの輸送中或いは納入先での貯蔵中であっても、所望
の温度に充填液を加熱・保温でき、必要に応じて温度セ
ンサにより液温を測定し温度調節器のON−OFF制御
により充填液温度を常に一定範囲に保つことも可能であ
る。また、放熱板を介在させることにより、ヒータから
の熱を迅速に周囲に逃がし、余分な熱が蓄積されないよ
うにしている。[Function] Since the container body is made of foam, it has heat insulation properties, and since the heater is provided at the bottom of the inner bag, the desired temperature can be maintained even during transportation of the container or storage at the destination. The filling liquid can be heated and kept warm, and if necessary, the temperature of the filling liquid can be always kept within a certain range by measuring the liquid temperature with a temperature sensor and controlling ON / OFF of the temperature controller. Further, by interposing the heat dissipation plate, the heat from the heater is quickly released to the surroundings so that excess heat is not accumulated.
【0008】以下図面に基づき本発明の詳細を説明す
る。図1及び図2に示すように、コンテナ本体1は発泡
スチロールの如き厚みのある発泡体からつくられ、四周
の胴板2と、脚5をもつ底板3と、天板4とから組立て
構成される。該コンテナ本体1内には、充填液を入れる
プラスチックシート製の内袋6が収容されている。ま
た、コンテナ本体1の底板3には、内袋内の充填液を加
熱・保温するための加熱装置7が設置されている。The present invention will be described in detail below with reference to the drawings. As shown in FIGS. 1 and 2, the container body 1 is made of a thick foam material such as styrofoam, and is composed of a body plate 2 having four circumferences, a bottom plate 3 having legs 5, and a top plate 4. . An inner bag 6 made of a plastic sheet for containing a filling liquid is housed in the container body 1. Further, on the bottom plate 3 of the container body 1, there is installed a heating device 7 for heating and keeping the filling liquid in the inner bag warm.
【0009】加熱装置7の具体例としては図3(a)
(b)に示すが、底板3の面に張設した矩形の放熱板9
の中央に同じく矩形の板状ヒータ8を載置し、該ヒータ
8上にもヒータを覆うように別の放熱板13を設けて形
成している。11はヒータ8のリード線である。A concrete example of the heating device 7 is shown in FIG.
As shown in (b), a rectangular heat dissipation plate 9 stretched over the surface of the bottom plate 3
Similarly, a rectangular plate-shaped heater 8 is placed at the center, and another radiator plate 13 is formed on the heater 8 so as to cover the heater. Reference numeral 11 is a lead wire of the heater 8.
【0010】ヒータ8の例としては、ニクロムエレメン
トをシリコンラバーで被覆したもので、一例を挙げれば
厚みが約3mm、幅250mm、長さ300mmで、容量が6
00W程度のものが望ましい。本発明では、図示した例
において板状ヒータ8のみ、つまり放熱板9,13を設
置しない態様もその対象とするが、この場合には、ヒー
タの厚み効果による断熱性でその表裏で温度差が生じ
る。As an example of the heater 8, a nichrome element is coated with silicon rubber. As an example, the thickness is about 3 mm, the width is 250 mm, the length is 300 mm, and the capacity is 6 mm.
It is preferably about 00W. In the present invention, the plate heater 8 alone, that is, the mode in which the heat dissipation plates 9 and 13 are not provided in the illustrated example, is also targeted, but in this case, the temperature difference between the front and back sides is caused by the heat insulating property due to the thickness effect of the heater. Occurs.
【0011】すなわち、ヒータ8の内面側(表側)は内
袋に接し、液へ連続的に熱が伝わり、平衡温度は低く保
たれるが、ヒータ外側(裏側)は断熱性に優れた発泡体
製本体に接しているため熱がこもり、温度が上昇する。
その結果ヒータの厚み方向の表裏における温度差は約5
0℃にも達する。他方、発泡体は110℃以上に加熱さ
れると、軟化しシュリンク現象を起こすため、少なくと
も100℃以下に保持することが望まれる。このことか
ら充填液の温度はせいぜい約50℃に保持することが必
要とされ、ヒータのみの態様では液温を50℃以下で保
持して輸送・貯蔵する場合に限られる。That is, the inner surface side (front side) of the heater 8 is in contact with the inner bag, heat is continuously transferred to the liquid, and the equilibrium temperature is kept low, but the outer side (back side) of the heater is a foam having excellent heat insulating properties. Since it is in contact with the body of the product, heat builds up and the temperature rises.
As a result, the temperature difference between the front and back of the heater in the thickness direction is about 5
It reaches 0 ° C. On the other hand, when the foam is heated to 110 ° C. or higher, it softens and causes a shrink phenomenon, so it is desirable to maintain the temperature at 100 ° C. or lower. For this reason, it is necessary to keep the temperature of the filling liquid at about 50 ° C. at most, and in the case of only the heater, it is limited to the case where the liquid temperature is kept below 50 ° C. for transportation / storage.
【0012】放熱板をヒータと共に配置する態様は、こ
のような液温を大幅に上げても支障のないようにするた
めである。特に、ヒータ8と発泡体製本体の底板3との
間に設ける放熱板9は、ヒータ裏面に発生した熱を四周
に伝達し、更に内袋から充填液へと伝えることにより、
熱の蓄積を低く抑える役目を果たす。これにより例え
ば、液温を90℃程度に維持するべくヒータで加熱して
も、コンテナ本体には熱による悪影響は出ない。The arrangement of the heat dissipation plate together with the heater is to prevent such trouble even if the liquid temperature is raised significantly. In particular, the heat radiating plate 9 provided between the heater 8 and the bottom plate 3 of the foam body transfers the heat generated on the back surface of the heater to the four circumferences and further transfers the heat from the inner bag to the filling liquid.
It serves to keep heat accumulation low. Thereby, for example, even if the heater is heated to maintain the liquid temperature at about 90 ° C., the container body is not adversely affected by the heat.
【0013】このような放熱板の機能を有効に果たすた
めには、少なくとも十分な広さを有することが必要であ
る。これはヒータの周囲に放熱するに必要な広さを確保
するためで、具体的にはヒータの面積の少なくとも1.
5倍の面積を放熱板に持たせることが必要とされる。こ
れ以下の面積では裏面の温度が放散不十分のため高くな
り、本体への熱影響が現れる。なお、上限の面積は5倍
程度とすることが好ましい。これ以上の面積では効果が
飽和するためである。In order to effectively perform the function of such a heat dissipation plate, it is necessary to have at least a sufficient width. This is to secure the area necessary for radiating heat to the periphery of the heater. Specifically, at least 1.
It is necessary to give the heat sink 5 times the area. If the area is smaller than this, the temperature of the back surface will be high due to insufficient radiation, and the heat effect will appear on the main body. The upper limit area is preferably about 5 times. This is because the effect is saturated when the area is larger than this.
【0014】また、放熱板の好ましい他の条件として
は、熱伝導性が良好なこと、及び一定以上の厚みを有す
ることである。即ち、材質としてアルミニウム、銅、真
ちゅう板の如き熱伝導性の良好な材料を選ぶとともに、
熱伝導量は板の断面積に比例するため、例えば1〜3mm
程度の厚みの板を選択することが望ましい。1mm以下で
は狙いとする効果が得られず、3mm以上では重量が増し
かさばる割に効果が増えないとの理由による。Further, other preferable conditions of the heat dissipation plate are that the heat conductivity is good and that the heat dissipation plate has a certain thickness or more. That is, as the material, select a material having good thermal conductivity such as aluminum, copper, or a brass plate,
Since the amount of heat conduction is proportional to the cross-sectional area of the plate, for example, 1 to 3 mm
It is desirable to select a plate with a moderate thickness. The reason is that if the thickness is 1 mm or less, the desired effect cannot be obtained, and if the thickness is 3 mm or more, the weight does not increase but the effect does not increase.
【0015】次に、本発明では充填液の温度を一定範囲
内に維持し得る手段として、図4(a)(b)に示すよ
うに、熱電対式温度計の如き温度センサ10をヒータ8
の下部に配置し、常にヒータ温度を測定可能にしてお
き、この測定値を温度調節器へ送って設定温度との比較
によりヒータをON−OFF制御する方式を採用してい
る。温度センサ10は、放熱板9の下面に接するように
発泡体底板3に凹部を形成し、そこに挿設するようにす
れば、ほぼ正確にヒータの温度を検知し得る。ヒータが
ONになると発生熱は充填液に伝達される一方、裏面の
熱は放熱板9を介して若干の遅れはあるもののセンサ1
0に短時間で伝達される。従って、本体発泡体の許容温
度を上限としてヒータをON−OFF制御することで、
安全かつ効率よく液の温度を所定範囲内にコントロール
することができる。Next, in the present invention, as means for maintaining the temperature of the filling liquid within a certain range, as shown in FIGS. 4 (a) and 4 (b), a temperature sensor 10 such as a thermocouple type thermometer is provided with a heater 8.
It is placed in the lower part of the heater so that the heater temperature can be measured at all times, and the measured value is sent to the temperature controller to control the heater ON / OFF by comparing with the set temperature. The temperature sensor 10 can detect the temperature of the heater substantially accurately by forming a recess in the foam bottom plate 3 so as to contact the lower surface of the heat dissipation plate 9 and inserting the recess in the recess. When the heater is turned on, the generated heat is transferred to the filling liquid, while the heat on the back surface is slightly delayed through the heat radiating plate 9, but the sensor 1
It is transmitted to 0 in a short time. Therefore, by controlling the heater ON-OFF with the allowable temperature of the main body foam as the upper limit,
The temperature of the liquid can be controlled within a predetermined range safely and efficiently.
【0016】図5に本発明のコンテナの実施態様を示
す。コンテナ本体1側面に温度調節器14を取り付け、
該温度調節器14と温度センサ10を接続すると共に電
源コード16を該調節器14を介してヒータ8に接続し
ている。このコンテナ本体1内に所定の充填液を収容す
る内袋が収められる。なお、調節器14にはデジタルス
イッチ15が設けられ、これにより充填液に対応した適
正な温度範囲が設定され、この設定温度範囲を外れるこ
とによりヒータ8がON−OFFするようになってい
る。FIG. 5 shows an embodiment of the container of the present invention. Attach the temperature controller 14 to the side of the container body 1,
The temperature controller 14 and the temperature sensor 10 are connected, and the power cord 16 is connected to the heater 8 via the controller 14. An inner bag containing a predetermined filling liquid is housed in the container body 1. The controller 14 is provided with a digital switch 15 to set an appropriate temperature range corresponding to the filling liquid, and the heater 8 is turned on and off when the temperature goes out of the set temperature range.
【0017】[0017]
【実施例】 試験条件 充填液:トリメチロールプロパン (凝固点59℃) 貯蔵温度:80℃(70℃以上) 充填温度:85℃(輸送後80℃) 充填量:1000l コンテナ本体材質:発泡スチロール ヒータ:シートヒータ(ニクロム線エレメント、シリコ
ンラバー被覆、厚み3mm、幅250mm、長さ300mm、
容量600W) 放熱板:アルミニウム板(厚み1.5mm、幅500mm、
長さ500mm) 温度コントロール:センサ…熱電対式温度計、調節器…
デジタルスイッチ式温度設定器 温度設定値:90℃(実際の温度は93〜88℃)[Examples] Test conditions Filling liquid: trimethylolpropane (freezing point 59 ° C) Storage temperature: 80 ° C (70 ° C or more) Filling temperature: 85 ° C (80 ° C after transportation) Filling amount: 1000l Container body material: Styrofoam heater: Sheet Heater (Nichrome wire element, silicon rubber coating, thickness 3mm, width 250mm, length 300mm,
Capacity 600W) Heat sink: Aluminum plate (thickness 1.5mm, width 500mm,
Length: 500 mm) Temperature control: Sensor ... Thermocouple type thermometer, controller ...
Digital switch type temperature setter Temperature setting value: 90 ° C (actual temperature is 93 to 88 ° C)
【0018】結果 上記の条件でかつ外気温度30℃の夏季において使用し
た場合、ヒータのON時間21秒、OFF時間46秒
で、負荷率(ON時間率)は約32%であり、充填液温
度は80〜81℃に維持できた。また、同一のものを温
度10℃の建屋内で保管した場合、ヒータのON時間2
8秒、OFF時間39秒で、負荷率(ON時間率)は約
42%であり、充填液温度は75〜77℃に維持でき、
いずれも問題なかった。また、輸送に際しては一般の平
ボデーのトラックにコンテナを積載し、輸送所要時間が
24時間程度経っても充填液の温度は5℃以上は下がら
ず、問題はなかった。Results When used in the summer under the above conditions and an outside air temperature of 30 ° C., the heater ON time is 21 seconds, OFF time is 46 seconds, and the load factor (ON time percentage) is about 32%. Could be maintained at 80-81 ° C. When the same thing is stored in a building with a temperature of 10 ° C, the heater ON time is 2
The load rate (ON time rate) is about 42% at 8 seconds and OFF time 39 seconds, and the filling liquid temperature can be maintained at 75 to 77 ° C.
There was no problem in either case. Also, during transportation, the container was loaded on a general flat-body truck, and the temperature of the filling liquid did not drop below 5 ° C. even after the required transportation time of about 24 hours, and there was no problem.
【0019】[0019]
【発明の効果】以上述べた本発明のコンテナによれば、
ヒータをコンテナ底部に配置しているので、液に適度の
循環が起こりほぼ均一な温度に維持できると共に、コン
テナ本体が発泡体製であるため断熱性に優れ、ヒータ消
費電力も少なくて済む。また、輸送時であっても貯蔵中
であっても所定の温度に充填液を保持でき、更に液を汚
染せず、かつヒータは固定であるため液の充填、排出、
内袋の取替え等に何等の支障を来さない。According to the container of the present invention described above,
Since the heater is arranged at the bottom of the container, the liquid is appropriately circulated and can be maintained at a substantially uniform temperature, and since the container body is made of foam, the heat insulation is excellent and the power consumption of the heater is low. In addition, the filling liquid can be held at a predetermined temperature during transportation and storage, does not contaminate the liquid, and since the heater is fixed, filling and discharging of the liquid,
It does not hinder the replacement of inner bags.
【0020】また、本発明の請求項2によれば、放熱板
によりヒータの熱は内袋側へ向かうため発泡体製のコン
テナ本体が変形したりせず、しかもコンテナ本体の許容
温度に近い温度まで充填液の温度を加熱し得ることにな
り、コンテナの適用範囲が広くなる。更に、本発明の請
求項3によれば、充填液の温度を常時一定範囲内に効率
よく保持コントロールすることができる。According to the second aspect of the present invention, the heat of the heater is directed to the inner bag side by the heat radiating plate, so that the container body made of foam is not deformed and the temperature is close to the allowable temperature of the container body. Since the temperature of the filling liquid can be heated up to this, the range of application of the container is widened. Further, according to the third aspect of the present invention, the temperature of the filling liquid can always be efficiently controlled to be kept within a certain range.
【図1】本発明のコンテナの1実施例を示す本体平面
図。FIG. 1 is a plan view of a main body showing an embodiment of a container of the present invention.
【図2】図1の正面図。FIG. 2 is a front view of FIG.
【図3】図1における加熱装置の詳細平面図とその断面
図。3A and 3B are a detailed plan view and a sectional view of the heating device in FIG.
【図4】図1における温度センサ布設状態の平面図とそ
の断面図。4A and 4B are a plan view and a cross-sectional view of the temperature sensor installation state in FIG.
【図5】本発明の実施態様を示す斜視図。FIG. 5 is a perspective view showing an embodiment of the present invention.
1 コンテナ本体 2 本体胴板 3 本体底板 4 本体天板 5 底板脚部 6 内袋 7 加熱装置 8 ヒータ 9,13 放熱板 10 温度センサ 11,12 リード線 14 温度調節器 15 デジタルスイッチ 16 電源コード 17 充填液 1 Container Main Body 2 Main Body Bottom Plate 3 Main Body Bottom Plate 4 Main Body Top Plate 5 Bottom Plate Leg 6 Inner Bag 7 Heating Device 8 Heater 9,13 Radiator 10 Temperature Sensor 11, 12 Lead Wire 14 Temperature Controller 15 Digital Switch 16 Power Cord 17 Filling liquid
Claims (3)
収容するための内袋を有するコンテナであって、本体底
部発泡体の内面と内袋との間に、板状のヒータを配置し
たことを特徴とする内袋を有する発泡体製コンテナ。1. A container having an inner bag for accommodating a filling liquid inside a main body made of foam, wherein a plate-shaped heater is arranged between the inner surface of the bottom foam of the main body and the inner bag. A foam container having an inner bag characterized by the above.
の少なくとも1.5倍の面積を有する放熱板を設置した
ことを特徴とする請求項1記載のコンテナ。2. The container according to claim 1, wherein a heat radiating plate having an area of at least 1.5 times the area of the heater is installed between the plate heater and the main body.
共に該センサに温度調節器を接続して充填液温を一定範
囲にコントロールすることを特徴とする請求項1または
2記載のコンテナ。3. The container according to claim 1, wherein a temperature sensor is provided between the heater and the main body, and a temperature controller is connected to the sensor to control the temperature of the filling liquid within a certain range.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4289084A JPH06135488A (en) | 1992-10-27 | 1992-10-27 | Container made of foamed material with internal bag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4289084A JPH06135488A (en) | 1992-10-27 | 1992-10-27 | Container made of foamed material with internal bag |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06135488A true JPH06135488A (en) | 1994-05-17 |
Family
ID=17738619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4289084A Withdrawn JPH06135488A (en) | 1992-10-27 | 1992-10-27 | Container made of foamed material with internal bag |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06135488A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009010545A1 (en) * | 2007-07-19 | 2009-01-22 | Josef Mikl | Container for receiving a fluid and method for the transport of fluid media |
-
1992
- 1992-10-27 JP JP4289084A patent/JPH06135488A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009010545A1 (en) * | 2007-07-19 | 2009-01-22 | Josef Mikl | Container for receiving a fluid and method for the transport of fluid media |
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