JPS6152356B2 - - Google Patents
Info
- Publication number
- JPS6152356B2 JPS6152356B2 JP8469682A JP8469682A JPS6152356B2 JP S6152356 B2 JPS6152356 B2 JP S6152356B2 JP 8469682 A JP8469682 A JP 8469682A JP 8469682 A JP8469682 A JP 8469682A JP S6152356 B2 JPS6152356 B2 JP S6152356B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- gas
- storage tank
- liquefied
- dripping
- 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
Links
- 239000007789 gas Substances 0.000 claims description 47
- 239000011261 inert gas Substances 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000008016 vaporization Effects 0.000 claims description 4
- 238000009834 vaporization Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 235000013361 beverage Nutrition 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009924 canning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/006—Adding fluids for preventing deformation of filled and closed containers or wrappers
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vacuum Packaging (AREA)
Description
【発明の詳細な説明】
この発明は、缶詰缶の巻締直前に液化不活性ガ
スを滴下封入して、密閉後の缶詰缶に所定の内圧
を生じさせるようにした液化不活性ガスの滴下充
填装置に関する。DETAILED DESCRIPTION OF THE INVENTION This invention provides a method for drip-filling liquefied inert gas in which a liquefied inert gas is dripped into a can immediately before sealing to create a predetermined internal pressure in the sealed can. Regarding equipment.
近時、ジユース等の炭酸ガスを含まない飲料等
の缶詰にあつても、炭酸ガスを含む飲料と同様の
板厚の薄い材料で製作された缶を用いることが望
まれている。しかし、炭酸ガスを含まない飲料等
は減菌のため加熱されており、缶の巻締後常温に
戻ることによつて缶内に負圧が生じることもあつ
て、薄い材料で製作された缶では強度不足となる
のが普通である。 BACKGROUND ART In recent years, even when canning beverages that do not contain carbon dioxide gas such as youth, it has been desired to use cans made of a thin material similar to that used for beverages containing carbon dioxide gas. However, beverages that do not contain carbon dioxide gas are heated to sterilize them, and when the can returns to room temperature after being sealed, negative pressure may be created inside the can. It is normal for the strength to be insufficient.
このため、缶の巻締直前に液化不活性ガスを滴
下封入して密封後の缶の内圧を高め、これによつ
て缶の強度不足を補うことが試みられている。こ
のとき滴下封入すべき液化不活性ガスの量は、缶
充填物の温度、巻締装置の運転速度、缶内上部空
間の大きさ等によつて変化する。しかも、封入量
が不足すれば強度不足のためつぶれる等の不良缶
の発生が増加し、多すぎればふくれ現象が生じ、
腐敗による不良缶と間違われる等の問題が生ず
る。このため、缶への封入量を自由に変更しうる
と共に、一度設定した封入量は常に一定に保たれ
る必要がある。 For this reason, attempts have been made to increase the internal pressure of the sealed can by dripping liquefied inert gas just before the can is sealed, thereby compensating for the lack of strength of the can. The amount of liquefied inert gas to be dropped and sealed at this time varies depending on the temperature of the can filling, the operating speed of the seaming device, the size of the upper space inside the can, and the like. Moreover, if the amount is insufficient, the occurrence of defective cans such as crushing due to lack of strength will increase, and if it is too much, the phenomenon of blistering will occur.
Problems arise, such as being mistaken for defective cans due to spoilage. For this reason, it is necessary to be able to freely change the amount enclosed in the can, and to always maintain a constant amount once set.
この封入量、すなわち滴下量は、滴下ノズルの
径、ノズルの開放時間と共に液化不活性ガスにか
かる圧力の影響を強く受ける。このため、この種
の滴下装置では、元タンクの液化不活性ガスを滴
下装置の貯溜槽に移送し、常に一定のレベルに保
つて滴下ノズルにかかるヘツドを一定にすると共
に貯溜槽内の気化ガスの圧力を適宜に設定して滴
下量の調節に用いることが試みられている。 The amount of the sealed gas, that is, the amount of the dripped gas, is strongly influenced by the diameter of the dripping nozzle, the opening time of the nozzle, and the pressure applied to the liquefied inert gas. For this reason, in this type of dripping device, the liquefied inert gas in the source tank is transferred to the storage tank of the dripping device, and it is always kept at a constant level so that the head applied to the dripping nozzle is constant, and the vaporized gas in the storage tank is kept at a constant level. Attempts have been made to appropriately set the pressure and use it to adjust the amount of dripping.
従来、この圧力調節は、圧力を下げる場合は貯
溜槽内の気化ガスをレギユレータを通じて放出す
るだけでよいが、圧力を上げる場合は貯溜槽内に
ヒーターを設け、気化ガスを加熱することによつ
て行なわれていた。しかし、加熱による圧力調節
は液化不活性ガスの貯溜槽の構造を複雑にし、ヒ
ーターが相当の電力を消費すること、ヒーターの
熱容量のため圧力調節の応答速度には限界がある
こと等の問題を含んでいた。 Conventionally, to lower the pressure, it is sufficient to release the vaporized gas in the storage tank through a regulator, but to increase the pressure, a heater is installed in the storage tank to heat the vaporized gas. It was being done. However, adjusting the pressure by heating complicates the structure of the liquefied inert gas storage tank, causes problems such as the heater consuming a considerable amount of power, and the response speed of pressure adjustment being limited due to the heat capacity of the heater. It contained.
この発明は、液化ガス貯溜槽の圧力増昇の制御
は、元タンク等、貯溜槽内より高い圧力に設定さ
れている部分の圧力を導入することによつて行
い、上記の欠点を除く他、装置の実用化のための
改良を加えたものである。 In this invention, the pressure increase in the liquefied gas storage tank is controlled by introducing the pressure of a part such as the source tank that is set to a higher pressure than the inside of the storage tank, and in addition to eliminating the above-mentioned drawbacks, Improvements have been made to put the device into practical use.
以下図面を参照して詳細に説明する。 A detailed explanation will be given below with reference to the drawings.
第１図はこの発明の液化不活性ガス滴下装置の
模式図であり、１は断熱材等によつて断熱される
液化ガス貯溜槽であり、電磁的駆動装置２によつ
て開閉される滴下バルブ３およびノズルプレート
４を備えている。凍結し難い材料、例えば或る種
の合成樹脂で作られるのが望ましいノズルプレー
ト４の中央には液化ガスを滴下するための滴下ノ
ズル６が設けられる。 FIG. 1 is a schematic diagram of a liquefied inert gas dripping device of the present invention, in which 1 is a liquefied gas storage tank insulated with a heat insulating material, etc., and a dripping valve that is opened and closed by an electromagnetic drive device 2. 3 and a nozzle plate 4. A drip nozzle 6 for dripping liquefied gas is provided in the center of the nozzle plate 4, which is preferably made of a material that is difficult to freeze, such as some kind of synthetic resin.
液化不活性ガスは元タンク５から配管１１を通
じて供給され、バケツト式又はボール式フロート
バルブ１５を通じて供給され、液面レベルは常に
一定に保たれる。貯溜槽１の上部空間７は配管８
を通じ圧力調整バルブ１３を経て放出されるが、
この放出ガスはノズルプレート４の外周部に導か
れ、ガスノズル９から放出されて滴下する液化ガ
スを低温不活性ガスでシールドすることによつて
滴下ガスの気化およびノズルプレート４の凍結を
防止する。 The liquefied inert gas is supplied from the source tank 5 through the pipe 11 and through the bucket type or ball type float valve 15, so that the liquid level is always kept constant. The upper space 7 of the storage tank 1 is connected to piping 8
is released through the pressure regulating valve 13,
This discharged gas is guided to the outer periphery of the nozzle plate 4, and the liquefied gas discharged from the gas nozzle 9 and dripping is shielded with a low-temperature inert gas, thereby preventing vaporization of the dripped gas and freezing of the nozzle plate 4.
この発明の液化ガス滴下装置においては、貯溜
槽１への給液配管１１を分岐し、クイツクチヤー
ジ用給液管１０が設けられる。 In the liquefied gas dripping device of the present invention, the liquid supply pipe 11 to the storage tank 1 is branched, and a quick charge liquid supply pipe 10 is provided.
また、前記放出管路８に、貯溜槽１の上部空間
７の内圧よりも高い内圧を有する元タンク５の上
部を貯溜槽内圧設定用レギユレータ１６を介して
連結してある。レギユレータ１６は、貯溜槽の空
間７が所定圧力よりも低下した場合、高圧源であ
る元タンク５の気化ガスを貯溜槽に供給して、貯
溜タンクの内圧を所定圧力まで高めるために元タ
ンクの気化ガスの供給を制御するためのものであ
つて、その設定圧力は貯溜槽の所望圧力に設定さ
れている。 Further, the upper part of the source tank 5 having an internal pressure higher than the internal pressure of the upper space 7 of the storage tank 1 is connected to the discharge pipe 8 via a regulator 16 for setting the internal pressure of the storage tank. The regulator 16 supplies vaporized gas from the source tank 5, which is a high pressure source, to the storage tank when the pressure in the space 7 of the storage tank is lower than a predetermined pressure. It is for controlling the supply of vaporized gas, and its set pressure is set to the desired pressure of the storage tank.
１９は前記元タンク５の気化ガス圧を利用し
て、圧力調整弁１３をコントロールするための圧
力調整弁制御用レギユレータである。該レギユレ
ータ１９は、貯溜槽１の内圧が所定圧力よりも高
くなつた場合、圧力調整弁１３が開路して貯溜槽
１内の気化ガスを放出して貯溜槽の内圧を所定圧
力まで低下させるように、圧力調整弁１３を制御
するための所定のパイロツト圧を圧力調整弁１３
に付加している。１８はレギユレータの凍結防止
のためのヒーターであり、制御盤１７によつて必
要の場合気化ガスを加熱する。１４は安全弁、１
２は液化バスを滴下すべき缶詰缶の近接を検出す
るセンサーである。 Reference numeral 19 denotes a pressure regulating valve control regulator for controlling the pressure regulating valve 13 using the vaporized gas pressure in the source tank 5. The regulator 19 is configured such that when the internal pressure of the storage tank 1 becomes higher than a predetermined pressure, the pressure regulating valve 13 opens and releases the vaporized gas in the storage tank 1, thereby reducing the internal pressure of the storage tank to a predetermined pressure. Then, a predetermined pilot pressure for controlling the pressure regulating valve 13 is set to the pressure regulating valve 13.
is added to. A heater 18 is used to prevent the regulator from freezing, and the control panel 17 heats the vaporized gas when necessary. 14 is a safety valve, 1
2 is a sensor that detects the proximity of a can to which the liquefaction bath is to be dripped.
この装置は、元タンク５からの給液に当り、初
期給液の場合、元タンク５の内圧が低い場合はフ
ロートバルブ１５を通じての給液には長時間を要
するので、バルブ２０を開き給液管１０より急速
に貯溜槽１内に給液する。その後バルブ２０は閉
められる。 This device supplies liquid from the source tank 5. In the case of initial liquid supply, if the internal pressure of the source tank 5 is low, it takes a long time to supply liquid through the float valve 15, so the valve 20 is opened to supply liquid. The liquid is rapidly supplied into the storage tank 1 through the pipe 10. Valve 20 is then closed.
缶の接近を検出するセンサー１２からの信号に
より、制御盤１７は、予め設定された時間だけ電
磁的駆動装置２によつて滴下バルブ３を開け、所
定量の液化ガスを缶中に滴下する。滴下によつて
貯溜槽１中の液面が低下すれば、フロートバルブ
１５は開となり、元タンク５の内圧によつて液化
ガスは貯溜槽中に流入し、液面は一定に保たれ
る。 A signal from the sensor 12 detecting the approach of the can causes the control panel 17 to open the drip valve 3 by means of the electromagnetic drive device 2 for a preset time to drip a predetermined amount of liquefied gas into the can. When the liquid level in the storage tank 1 decreases due to dripping, the float valve 15 is opened and the liquefied gas flows into the storage tank due to the internal pressure of the source tank 5, and the liquid level is kept constant.
一方、貯溜槽１中の内圧は、上部空間７の気化
ガスが圧力調整弁１３を通じて放出されることに
よつて一定に保たれる。同時に、空間７の圧力よ
りも高く設定されている元タンク５からの気化ガ
ス放出管路がレギユレータ１６を通じて放出管路
８に接続されているので、何らかの原因で貯溜槽
１内の圧力が設定値より低下した場合は、気化ガ
スは逆に貯溜槽１の上部空間に流入し、設定値ま
での内圧を高めることとなる。このようにして滴
下液化ガスにかかる圧力は一定に保たれる。 On the other hand, the internal pressure in the storage tank 1 is kept constant by releasing the vaporized gas in the upper space 7 through the pressure regulating valve 13. At the same time, since the vaporized gas release line from the source tank 5, which is set higher than the pressure in the space 7, is connected to the release line 8 through the regulator 16, the pressure in the storage tank 1 may rise to the set value for some reason. If the pressure drops further, the vaporized gas will instead flow into the upper space of the storage tank 1, increasing the internal pressure to the set value. In this way, the pressure on the dripping liquefied gas is kept constant.
第２図は給液配管１１が２重管とされた別の実
施例を示す。貯溜槽１内の液面が低下し、フロー
トバルブ１５が開となつたとき、もし給液管１１
中で液化ガスが気化していれば、貯溜槽１内には
この気化ガスが放出され、給液が順調に行なわれ
ない許りでなく、高い気化ガス圧によつて貯溜槽
１内の圧力を一時的に変動させ、ノズル６からの
液化ガス滴下量に変動を生ずる恐れも生ずる。 FIG. 2 shows another embodiment in which the liquid supply pipe 11 is a double pipe. When the liquid level in the storage tank 1 drops and the float valve 15 opens, if the liquid supply pipe 11
If the liquefied gas is vaporized inside, this vaporized gas will be released into the storage tank 1, and the liquid supply will not be carried out smoothly, but the pressure inside the storage tank 1 will increase due to the high vaporized gas pressure. There is also a possibility that the amount of liquefied gas dripping from the nozzle 6 may change.
このため配管を２重管とし、内側の管２１を貯
溜槽への給液管とし、外側の管２２中の液化ガス
によつて給液管２１中の液化ガス中の気化を防止
する。外管２２中の圧力を調節することによつて
温度の調節が可能であり、この圧力調節は気化ガ
スを適当な圧力調節弁１３′を通じて放出するこ
とによつて可能である。場合によつては、この放
出ガスは上記の放出管路８にレギユレータを通じ
て接続し、この放出ガス圧によつて貯溜槽内の圧
力調整を行うことも可能である。 For this purpose, the piping is a double pipe, the inner pipe 21 is used as the liquid supply pipe to the storage tank, and the liquefied gas in the outer pipe 22 prevents the liquefied gas in the liquid supply pipe 21 from vaporizing. The temperature can be adjusted by adjusting the pressure in the outer tube 22, which pressure can be adjusted by releasing the vaporized gas through a suitable pressure regulating valve 13'. In some cases, this discharged gas may be connected to the above-mentioned discharge pipe 8 through a regulator, and the pressure within the reservoir may be adjusted by the pressure of this discharged gas.
第３図は滴下バルブ３部分の拡大図である。ノ
ズルプレート４と協働する針弁２３は、バネ２４
によつて常に上方に附勢され、駆動装置２によつ
て上下方向に駆動される弁杆２５に衝合し、その
動きに従動する。液化ガスは貯溜槽からノズルプ
レート４中の通路２６を通じて供給される。 FIG. 3 is an enlarged view of the drip valve 3 portion. The needle valve 23 cooperating with the nozzle plate 4 is supported by a spring 24
The valve rod 25 is always urged upward by the drive device 2, and collides with the valve rod 25, which is driven vertically by the drive device 2, and follows the movement of the valve rod 25. Liquefied gas is supplied from the reservoir through passages 26 in the nozzle plate 4.
このように弁杆２５と針弁２３を別体に構成す
ると、針弁２３と弁座との中心合せが容易になる
という利点を生ずる。 Configuring the valve rod 25 and the needle valve 23 separately in this way has the advantage that centering of the needle valve 23 and the valve seat becomes easier.
上記のようにこの発明は、貯溜槽内の圧力より
高い元タンクの内圧を利用して貯溜槽内の圧力を
一定に保つようにしたので、圧力保持用のヒータ
ーを不用にし、かつ昇圧の応答が早く、常に安定
した滴下液量を得ることが出来る。 As mentioned above, this invention uses the internal pressure of the source tank, which is higher than the pressure inside the storage tank, to keep the pressure inside the storage tank constant, thereby eliminating the need for a pressure-maintaining heater and responding to pressure increases. It is possible to obtain a stable amount of liquid dropped at all times.
その上、自冷給液管により、給液管中の気化を
防止し、フロートバルブ開放による圧力変動を防
止し、滴下バルブの中心合せを容易にして液化ガ
スの滴下量の変動要因を除くことが出来たもので
ある。 In addition, the self-cooled liquid supply pipe prevents vaporization in the liquid supply pipe, prevents pressure fluctuations due to opening of the float valve, and facilitates centering of the dripping valve to eliminate factors that cause fluctuations in the amount of liquefied gas dripped. This is what was created.
第１図はこの発明の液化ガス滴下装置の摸式
図、第２図は給液管の摸式図、第３図は滴下ノズ
ル部分の断面図
１……液化ガス貯溜槽、３……滴下バルブ、５
……液化ガスタンク、６……滴下ノズル、９……
シールドガスノズル、１０……クイツクチヤージ
給液管、１２……缶検出センサー、１３……圧力
調整弁、１４……安全弁、１５……フロートバル
ブ、１６，１９……レギユレータ、１７……制御
盤、１８……ヒーター、２１……内管、２２……
外管、２３……針弁、２４……バネ、２５……弁
杆。
Fig. 1 is a schematic diagram of the liquefied gas dripping device of the present invention, Fig. 2 is a schematic diagram of the liquid supply pipe, and Fig. 3 is a sectional view of the dripping nozzle portion. 1...Liquified gas storage tank, 3...Dripping valve, 5
...Liquefied gas tank, 6...Dripping nozzle, 9...
Shield gas nozzle, 10... Quick charge liquid supply pipe, 12... Can detection sensor, 13... Pressure adjustment valve, 14... Safety valve, 15... Float valve, 16, 19... Regulator, 17... Control panel, 18 ... Heater, 21 ... Inner tube, 22 ...
Outer tube, 23...needle valve, 24...spring, 25...valve rod.
Claims (1)
を滴下するための液化不活性ガス滴下装置におい
て、液化ガスの滴下バルブを有する液化ガス貯溜
槽の上部空間が、該貯溜槽上部の気化ガス圧を一
定に保つための圧力調整弁を有するガス放出管路
に連結されると共に、前記貯溜槽内圧より高いガ
ス圧を有する液化不活性ガス元タンクの不活性ガ
ス気化部分と貯溜槽内圧設定用レギユレータを介
して連結されていることを特徴とする液化不活性
ガス滴下装置。1. In a liquefied inert gas dripping device for dripping liquefied inert gas into a can immediately before sealing the can, the upper space of a liquefied gas storage tank having a liquefied gas dripping valve is located at the top of the storage tank. An inert gas vaporization portion of a liquefied inert gas source tank and a storage tank internal pressure that are connected to a gas discharge pipe having a pressure regulating valve for keeping the vaporized gas pressure constant and have a gas pressure higher than the storage tank internal pressure. A liquefied inert gas dripping device characterized by being connected via a setting regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8469682A JPS58203296A (en) | 1982-05-20 | 1982-05-20 | Dropping device for liquefied inactive gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8469682A JPS58203296A (en) | 1982-05-20 | 1982-05-20 | Dropping device for liquefied inactive gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58203296A JPS58203296A (en) | 1983-11-26 |
| JPS6152356B2 true JPS6152356B2 (en) | 1986-11-12 |
Family
ID=13837823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8469682A Granted JPS58203296A (en) | 1982-05-20 | 1982-05-20 | Dropping device for liquefied inactive gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58203296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102410835B1 (en) * | 2021-09-06 | 2022-06-22 | 주식회사 씨브이에스 | Mini liquid nitrogen doser |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5293750A (en) * | 1991-11-27 | 1994-03-15 | Osaka Gas Company Limited | Control system for liquefied gas container |
| FR2696152B1 (en) * | 1992-09-29 | 1994-10-28 | Air Liquide | Method and device for dispensing doses of liquid, in particular liquefied gas. |
-
1982
- 1982-05-20 JP JP8469682A patent/JPS58203296A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102410835B1 (en) * | 2021-09-06 | 2022-06-22 | 주식회사 씨브이에스 | Mini liquid nitrogen doser |
| WO2023033426A1 (en) * | 2021-09-06 | 2023-03-09 | 주식회사 씨브이에스 | Mini liquid-nitrogen injector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58203296A (en) | 1983-11-26 |
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