JPS6153599B2 - - Google Patents
Info
- Publication number
- JPS6153599B2 JPS6153599B2 JP21468182A JP21468182A JPS6153599B2 JP S6153599 B2 JPS6153599 B2 JP S6153599B2 JP 21468182 A JP21468182 A JP 21468182A JP 21468182 A JP21468182 A JP 21468182A JP S6153599 B2 JPS6153599 B2 JP S6153599B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- dripping
- pressure
- liquefied gas
- storage tank
- 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
- 239000007788 liquid Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims 1
- 238000009834 vaporization Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 37
- 238000004826 seaming Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000013324 preserved food Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0626—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/06—Controlling or regulating of parameters as output values
- F17C2250/0605—Parameters
- F17C2250/0636—Flow or movement of content
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Vacuum Packaging (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【発明の詳細な説明】
本発明は缶詰缶に内圧を与えるための液化ガス
の滴下装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquefied gas dripping device for applying internal pressure to a can.
缶詰缶の巻締直前に缶内に液化窒素等の液化不
活性ガスを滴下することは、巻締後の缶内の圧力
を高め、缶胴厚の薄い缶を使用出来ることによ
り、省資源とコストダウンを計れると共に、缶中
の封入空気を不活性ガスで置換して缶詰食品の品
質の向上に役立つという効果を生じる。 Dripping liquefied inert gas such as liquefied nitrogen into the can just before sealing the can increases the pressure inside the can after sealing, allowing the use of thinner cans, which saves resources. In addition to being able to reduce costs, the air sealed in the can is replaced with an inert gas, which helps improve the quality of canned food.
この液化ガスの滴下は、出来るだけ巻締部近傍
で行う事が望ましい。巻締部直前の滴下により、
液化ガスの節約、缶内に滴下直後のフラツシ
ユガスが巻締部雰囲気に充満する為、ガス置換効
果を期待出来る、滴下部位から巻締部までのガ
ス化量の変動の影響を少なくし、缶内圧の変動幅
を抑えることが出来る等の効果が期待出来る。 It is desirable to drip this liquefied gas as close to the seaming part as possible. Due to dripping just before the seaming part,
Savings on liquefied gas, as the flash gas immediately after dripping into the can fills the atmosphere at the seaming part, a gas replacement effect can be expected.It reduces the influence of fluctuations in the amount of gasification from the dropping part to the seaming part, and reduces the internal pressure of the can. Effects such as being able to suppress the range of fluctuations can be expected.
そして、このような液化ガス滴下装置を従来の
巻締装置に設置し、滴下部位を巻締部位に出来る
だけ近づけるためには、滴下装置の小型化特に、
滴下ノズルに直結する液化ガス貯溜タンクの小型
化が必要となる。 In order to install such a liquefied gas dripping device in a conventional seaming device and bring the dripping site as close as possible to the seaming site, it is necessary to downsize the dripping device, especially,
It is necessary to downsize the liquefied gas storage tank that is directly connected to the dripping nozzle.
一方、液化ガスの滴下封入量の精度を高めるた
めには或る程度のタンク容量が必要である。すな
わち、滴下バルブにかかる圧力を安定化するた
め、液化ガス貯溜量とタンク表面積の割合及びタ
ンクの上部空間の圧力変動吸収効果によりタンク
内圧及び液面レベルを安定的に保持する効果を得
るためにはタンク容量が大きい方が有利である。 On the other hand, a certain amount of tank capacity is required to improve the accuracy of the amount of liquefied gas dripped and sealed. In other words, in order to stabilize the pressure applied to the dripping valve, to obtain the effect of stably maintaining the tank internal pressure and liquid level by the ratio of the liquefied gas storage amount to the tank surface area and the effect of absorbing pressure fluctuations in the upper space of the tank. It is advantageous to have a large tank capacity.
本発明は、或る程度の容量を持つ液化ガス貯溜
槽の外部に、その上部空間及び底部に連通し、滴
下バルブを有する小型の滴下槽を設け、滴下槽内
の圧力を貯溜槽内の圧力によつて制御すると共
に、小型の滴下槽を巻締部位の近くに配置するこ
とにより、上記の矛盾する要求に応えようとする
ものである。 The present invention provides a small dripping tank that communicates with the upper space and bottom of a liquefied gas storage tank with a certain capacity and has a dripping valve, so that the pressure inside the dripping tank can be adjusted to the pressure inside the storage tank. The present invention attempts to meet the above-mentioned contradictory demands by controlling the amount of water and placing a small dripping tank near the seaming site.
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.
図に示す実施例においては、液化ガス貯溜槽１
は液面制御手段であるフロートバルブ２をそな
え、槽内の液面底下により液化ガスの元タンク３
から補給を受け、槽内の液面の高さを常に一定に
保持する。 In the embodiment shown in the figure, the liquefied gas storage tank 1
is equipped with a float valve 2 which is a liquid level control means, and the source tank 3 of the liquefied gas is controlled below the liquid level in the tank.
The liquid level in the tank is always maintained at a constant level.
気化ガスで満される槽１の上部空間はガス放出
管路４、圧力調整弁５を経て放出され、槽１内の
ガス圧を一定に保持する。この実施例において
は、放出管路４は、流量調節弁６、電磁弁７、減
圧弁８を経て、槽１の内圧より高い内圧を有する
元タンク３の上部空間に接続され、槽１内の圧力
が設定値より低下した場合、元タンク３のガス圧
を利用し、槽１の上部空間へ気化ガスを供給する
ことによつて直ちに設定値に復帰させるものであ
る。すなわち、槽１の内圧は、圧力設定器９によ
り設定入力し、電空変換器１０により圧力調整弁
５の開度を調整する。一方、槽１の内圧は圧力検
出器１１により検出し、設定圧力と比較され、も
し内圧が設定値より低ければ差圧発信器１２は電
磁弁７を開き、上記の設定圧より高い圧力を持つ
元タンク３からのガスを放出管路４中に送入する
ことにより槽１内の圧力を高める。 The upper space of the tank 1 filled with vaporized gas is discharged through a gas discharge pipe 4 and a pressure regulating valve 5 to maintain the gas pressure in the tank 1 constant. In this embodiment, the discharge pipe 4 is connected to the upper space of the original tank 3, which has an internal pressure higher than the internal pressure of the tank 1, through a flow rate control valve 6, a solenoid valve 7, and a pressure reducing valve 8. When the pressure drops below the set value, the gas pressure in the original tank 3 is used to supply vaporized gas to the upper space of the tank 1, thereby immediately returning it to the set value. That is, the internal pressure of the tank 1 is set and input using the pressure setting device 9, and the opening degree of the pressure regulating valve 5 is adjusted using the electro-pneumatic converter 10. On the other hand, the internal pressure of the tank 1 is detected by a pressure detector 11 and compared with the set pressure. If the internal pressure is lower than the set value, the differential pressure transmitter 12 opens the solenoid valve 7, and the pressure is higher than the set pressure. Gas from the source tank 3 is introduced into the discharge line 4 to increase the pressure in the tank 1.
本発明においては、貯溜槽１の底部より低い位
置に滴下制御バルブを内蔵する小型の液化ガス滴
下槽１３を設け、貯溜槽１の底部と液化ガス連通
管１４によつて連通すると共に、その上部空間は
気化ガス連通管１５によつて槽１の上部空間へ連
通される。 In the present invention, a small liquefied gas dripping tank 13 having a built-in dripping control valve is provided at a position lower than the bottom of the storage tank 1, and communicates with the bottom of the storage tank 1 through a liquefied gas communication pipe 14, and an upper part thereof. The space is communicated with the upper space of the tank 1 by a vaporized gas communication pipe 15.
１６は滴下バルブで、ニードル１７はソレノイ
ド１８の作動により一定時間バルブ１６を開放
し、液化ガスを缶詰缶１９中に滴下する。２０は
ステツプモータで、ニードル１７の行程を制限す
ることによりバルブ１６の開度を調整し、適下量
を制御する。 Reference numeral 16 designates a dripping valve, and the needle 17 opens the valve 16 for a certain period of time by operating a solenoid 18 to drip the liquefied gas into the can 19 . Reference numeral 20 denotes a step motor which adjusts the opening degree of the valve 16 by limiting the stroke of the needle 17, thereby controlling the amount of dispensing.
２１は支杆でベヤリング２２，２３によつて滴
下槽１３の位置を回動調節することが出来る。２
４は断熱真空室であり、液化ガス連通管１４を断
熱被覆している。 Reference numeral 21 denotes a support rod, and the position of the dripping tank 13 can be rotated and adjusted by means of bearings 22 and 23. 2
4 is a heat insulating vacuum chamber, which covers the liquefied gas communication pipe 14 with heat insulation.
本発明の滴下装置は、上記のような構成であ
り、比較的大きな容量を持つ液化ガス貯溜槽１内
の液面と上部空間の内圧はフロートバルブ２と圧
力制御装置によつて安定に保持され、この圧力
（タンク内圧と液面高さによる圧力の合計）が連
通管１４，１５を通じて滴下バルブ１６にかかる
ので、滴下槽１３は小型であるにもかかわらず、
滴下圧力は安定に保持される。そして、滴下槽１
３自体は極めて小型にすることができ、巻締部の
ごく近くにこれを配置することが出来る。 The dripping device of the present invention has the above-described configuration, and the liquid level in the liquefied gas storage tank 1 having a relatively large capacity and the internal pressure in the upper space are stably maintained by the float valve 2 and the pressure control device. This pressure (the sum of the tank internal pressure and the pressure due to the liquid level height) is applied to the dripping valve 16 through the communication pipes 14 and 15, so even though the dripping tank 13 is small,
The drip pressure is kept stable. And dripping tank 1
3 itself can be made extremely small and can be placed very close to the seaming section.
上記の実施例では、液化ガスは連通管１５中に
貯溜槽１中の液面と同レベル迄上昇しており、構
造にもよるが、ソレノイド１８やニードル１７の
行程制限機構等が液化ガス中に没することとな
る。これによつて何かの障害が生ずる恐れのある
場合には、滴下槽１３内の液面制御を行ない、液
化ガス液面の上昇を抑えればよい。 In the above embodiment, the liquefied gas has risen in the communication pipe 15 to the same level as the liquid level in the storage tank 1, and although it depends on the structure, the stroke limiting mechanism of the solenoid 18 and needle 17, etc. He will die in . If there is a possibility that some kind of trouble may occur due to this, the liquid level in the dripping tank 13 may be controlled to suppress the rise in the liquid level of the liquefied gas.
最も簡単には、連通管１５に電磁弁２５を設
け、滴下槽１３内に配設した液面計によつてその
開閉を制御する。すなわち、電磁弁２５を閉じれ
ば、滴下槽１３の上部空間は気化ガスで充され、
その圧力によつて貯溜槽１からの液化ガスの流入
は停止し、弁２５を開とすれば滴下槽１３上部の
気化ガスが貯溜槽中に流出し、液面レベルの差に
よつて液化ガスは滴下槽に流入する。これによつ
て滴下槽１３内の液面制御が可能となるが、貯溜
槽１内の内圧と液面レベルが一定な限り、滴下槽
１３内の液面の変動によつても滴下バルブ１６に
かかる圧力は変らない。 Most simply, a solenoid valve 25 is provided in the communication pipe 15, and its opening/closing is controlled by a liquid level gauge disposed in the dripping tank 13. That is, when the solenoid valve 25 is closed, the upper space of the drip tank 13 is filled with vaporized gas,
The pressure stops the inflow of liquefied gas from the storage tank 1, and when the valve 25 is opened, the vaporized gas in the upper part of the dripping tank 13 flows into the storage tank, and the difference in the liquid level causes the liquefied gas to flows into the drip tank. This makes it possible to control the liquid level in the dripping tank 13, but as long as the internal pressure and liquid level in the storage tank 1 are constant, the dripping valve 16 can be controlled even if the liquid level in the dripping tank 13 fluctuates. The pressure applied remains unchanged.
また、上記実施例では、液化ガス貯溜タンクの
気化ガス放出管路に圧力調節弁を設けて貯溜タン
クの内圧を設定圧に制御するようにしたが、内圧
制御手段は本実施例に限るものでなく、例えば、
気化ガス放出管路を直接大気に開放して、貯溜タ
ンクのガス内圧を大気圧に維持するようにしても
良い。 Furthermore, in the above embodiment, a pressure control valve is provided in the vaporized gas release line of the liquefied gas storage tank to control the internal pressure of the storage tank to the set pressure, but the internal pressure control means is not limited to this embodiment. For example,
The vaporized gas discharge pipe may be opened directly to the atmosphere to maintain the gas internal pressure in the storage tank at atmospheric pressure.
図は本発明の液化ガス滴下装置の１実施例の構
成概念図である。
１：液化ガス貯溜槽、２：フロートバルブ、
３：元タンク、４：気化ガス放出管路、５：圧力
調整弁、９：圧力設定器、１１：圧力検出器、１
２：差圧発信器、１３：滴下槽、１４，１５：連
通管、１６：滴下バルブ、２５：電磁弁。
The figure is a conceptual diagram of the configuration of one embodiment of the liquefied gas dripping device of the present invention. 1: Liquefied gas storage tank, 2: Float valve,
3: Source tank, 4: Vaporized gas release pipe, 5: Pressure adjustment valve, 9: Pressure setting device, 11: Pressure detector, 1
2: Differential pressure transmitter, 13: Dripping tank, 14, 15: Communication pipe, 16: Dripping valve, 25: Solenoid valve.
Claims (1)
段と気化ガス放出管路とを有する液化ガス貯溜槽
と、該貯溜槽内の液面より下方に設置され液化ガ
ス滴下バブルを有する前記貯溜槽より小型の液化
ガス滴下槽とからなり、該滴下槽は、前記貯溜槽
の底部と断熱被覆された液化ガス連通管により連
通されていると共に、その上部が前記貯溜槽の上
部と気化ガス連通管により連通されていることを
特徴とする液化ガス滴下装置。1. A liquefied gas storage tank having a liquid level control means for keeping the liquid level in the tank constant and a vaporized gas discharge pipe, and a liquefied gas dripping bubble installed below the liquid level in the storage tank. It consists of a liquefied gas dripping tank smaller than the storage tank, and the dripping tank is connected to the bottom of the storage tank by a liquefied gas communication pipe coated with heat insulation, and its upper part is connected to the top of the storage tank for vaporization. A liquefied gas dripping device characterized by being communicated by a gas communication pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214681A JPS59106798A (en) | 1982-12-09 | 1982-12-09 | Liquefied gas dropping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57214681A JPS59106798A (en) | 1982-12-09 | 1982-12-09 | Liquefied gas dropping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59106798A JPS59106798A (en) | 1984-06-20 |
| JPS6153599B2 true JPS6153599B2 (en) | 1986-11-18 |
Family
ID=16659814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57214681A Granted JPS59106798A (en) | 1982-12-09 | 1982-12-09 | Liquefied gas dropping device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59106798A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6160416A (en) * | 1984-08-22 | 1986-03-28 | 東洋製罐株式会社 | Liquefied inert gas dropping device |
| JPS62147195A (en) * | 1985-12-18 | 1987-07-01 | Toyo Seikan Kaisha Ltd | Liquefied gas adder |
| US5263329A (en) * | 1991-12-19 | 1993-11-23 | Lockheed Missiles & Space Company, Inc. | Flow management apparatus for cryogenic liquid |
| FR2696152B1 (en) * | 1992-09-29 | 1994-10-28 | Air Liquide | Method and device for dispensing doses of liquid, in particular liquefied gas. |
-
1982
- 1982-12-09 JP JP57214681A patent/JPS59106798A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59106798A (en) | 1984-06-20 |
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