JPH0487927A - Snowdry supplier and gas-liquid separator - Google Patents

Abstract

PURPOSE:To prevent gasified carbon oxide from flowing into a nozzle by a method wherein when snowdry is filled in a container which is transferred by a belt conveyor, liquefied carbonic acid housed in a tank is made to pass through a supply passage, a gas-liquid separator and an exhaust passage and then exhausted through the nozzle as snowdry. CONSTITUTION:A gas-liquid separator 5 is arranged above, for example, a home deliveried container 4 which is transferred by a belt conveyor 3. A nozzle 8 is mounted on a tip end of an exhaust passage 6 which projects downward from the separator 5 and interposed with a check valve 7, and snowdry is filled in the container 4. It is preferable that a supply passage 9 for supplying liquefied carbonic acid from a liquefied carbonic acid housing tank 1 to the separator 5 is so arranged that its separator side is positioned higher so as to make the gasified carbonic acid in the passage 9 flow by itself into the separator 5. A solenoid valve 18 is mounted in a gas exhaust passage 15 which is mounted on the separator 5, and it is preferable to provide a float switch 19 which turns ON-OFF corresponding to an amount of the liquefied carbonic acid within the separator 5 and a sensor which operates the solenoid valve 18 by the operation of the float switch 19.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a snow-dry supply device a3 and a gas-liquid separator that continuously supply snow-dry to containers that are filled with snow-dry and delivered to a home at a co-op or the like.

``Conventional technology'' Traditionally, delivery containers filled with Snow Dry at co-ops, etc. were packed with products for each delivery area, and while being transported on a belt conveyor, liquefied carbon dioxide gas was discharged from a nozzle to create Snow Dry, which was then placed inside the delivery container. A filling snow-dry feeding device is used.

“Problems to be Solved by the Present Invention” Conventional snow dry supply devices have a liquefied carbon dioxide gas supply path that runs between a liquefied carbon dioxide gas storage tank filled with liquefied carbon dioxide gas and a nozzle from which the snow dry gas is discharged. It is supplied using

However, since the installation location of the liquefied carbon dioxide storage tank and the nozzle installation location are approximately 100 to 200 meters apart, the liquefied carbon dioxide supply path becomes long, and the liquefied carbon dioxide gas evaporates along the way, producing vaporized carbon dioxide gas. The drawback was that it was easy.

In addition, when the nozzle is opened from a stopped state, a large amount of vaporized carbon dioxide gas is generated in the liquefied carbon dioxide supply passage, so the nozzle does not generate enough snow dry, and the delivery container is filled with sufficient snow dry. This had the disadvantage of creating delivery containers that could not be used.

In view of the above-mentioned conventional drawbacks, the present invention has been developed because the liquefied carbon dioxide gas supply passage from the liquefied carbon dioxide gas storage tank to the nozzle is long, and even if vaporized carbon dioxide is generated in the liquefied carbon dioxide gas supply passage, it cannot be supplied to the nozzle. It is an object of the present invention to provide a snow dry supply device and a gas-liquid separator that can reliably prevent this and can constantly fill containers such as home delivery containers with snow dry from a nozzle.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides a belt conveyor for continuously transporting containers filled with snow dry installed indoors, and containers transported by this belt conveyor. A gas-liquid separator disposed at the top of the container capable of discharging vaporized carbon dioxide, and an on-off valve having a nozzle at the tip protruding downward from the gas-liquid separator for filling snow dry into the container. A publication passageway for discharging liquefied carbon dioxide gas in the gas-liquid separator, a liquefied carbon dioxide storage tank filled with liquefied carbon dioxide installed outdoors, etc., and a liquefied carbon dioxide gas storage tank filled with liquefied carbon dioxide gas installed outdoors The liquefied carbon dioxide gas storage tank J for supplying into the gas-liquid separator and the liquefied carbon dioxide supply passage arranged so that the gas-liquid separator side is successively higher constitute a snow dry supply device.

The present invention also provides a gas-liquid separation container in which liquefied carbon dioxide gas and vaporized carbon dioxide gas are stored, and a gas-liquid separation container that is attached to an upper portion of the gas-liquid separation container, in which liquefied carbon dioxide gas is collected from a liquefied carbon dioxide storage tank. a supply pipe that supplies liquefied carbon dioxide;
A discharge pipe for discharging the liquefied carbon dioxide in the gas-liquid separation container is attached to a portion near the lower end of the gas-liquid separation container, and the gas-liquid separation container is attached to a portion near the upper end of the gas-liquid separation container. The liquefied carbon dioxide in the gas-liquid separation container is controlled by a gas discharge pipe equipped with a solenoid valve for discharging the vaporized carbon dioxide in the separation container, and a float switch installed in the gas-liquid separation container. A gas-liquid separator is constituted by a sensor that opens the electromagnetic valve to discharge the vaporized carbon dioxide in the gas-liquid separation container when the amount exceeds a fixed amount.

"Function" The Snow Dry supply device configured as described above transfers the liquefied carbon dioxide in the liquefied carbon dioxide gas storage tank to the liquefied carbon dioxide gas supply path, the gas-liquid separator, and
It passes through the discharge passage and is discharged from the nozzle as a dry snow.

The vaporized carbon dioxide generated in the liquefied carbon dioxide supply passage is removed by the gas-liquid separator and is prevented from flowing into the discharge passage.

"Embodiment of the present invention" The present invention will be described in detail below with reference to an embodiment shown in the drawings.

In the embodiment shown in FIGS. 1 to 3, reference numeral 1 denotes a liquefied carbon dioxide storage tank in which liquefied carbon dioxide 2 is stored, which is installed outdoors or the like.

Reference numeral 3 denotes bells 1 to 1 through which delivery containers 4 containing products placed indoors can be transported to each delivery area.

Reference numeral 5 denotes a gas-liquid separator disposed at the second position of the delivery container 4 that is transported by the bell 1 to the conveyor 3.

Reference numeral 6 denotes a discharge passage in which an on-off valve 7 protruding downward from the gas-liquid separator 5 is interposed, and the distal end of this discharge passage 6 is provided with the bell 1 to conveyor 3 for converting liquefied carbon dioxide into snow drying. A nozzle 8 for filling snow dry into the delivered delivery container 4 is attached.

Reference numeral 9 denotes a liquefied carbon dioxide gas supply passage that supplies liquefied carbon dioxide gas 2 from the liquefied carbon dioxide gas storage tank 1 into the gas-liquid separator 5, and this liquefied carbon dioxide gas supply passage 9 is provided with a heat insulating material around its outer periphery to keep it cool. The gas-liquid separator 5 side is placed higher so that the vaporized carbon dioxide gas 24 automatically flows into the gas-liquid separator 5 into the liquefied carbon dioxide gas supply passage 9. An on-off valve 10 is interposed therein.

The gas-liquid separator 5, as shown in FIGS. 2 and 3,
Liquefied carbon dioxide gas 2 and vaporized carbon dioxide gas 2A are stored.”
- A downwardly long gas-liquid separation container 11, a heat insulating material 12 that covers the outer periphery of the gas-liquid separation container 11 to keep it cold, and a part of the gas-liquid separation container 11 near the -L section II 4-J A supply vibrator 13 for supplying liquefied carbon dioxide 2 into the gas-liquid separation container 11 that has been a discharge pipe 14 that discharges carbon dioxide gas 2 to a discharge passage 6;
A gas top 1 outlet passage 15 for discharging the vaporized carbon dioxide 2Δ in the gas-liquid separation vessel 11, which is attached to a portion near the upper part of the gas-liquid separation vessel 11, and a pressure gauge interposed in the gas discharge passage 15. 16, a safety valve 17, a solenoid valve 18a5, and a flow rate adjustment opening/closing valve 24 for adjusting the gas discharged are installed in the gas-liquid separation container 11 so that the liquefied carbon dioxide gas 2 in the gas-liquid separation container 11 is When the amount exceeds the predetermined amount, it becomes ON, and when the amount exceeds the predetermined amount, the state goes off.
It is composed of a sensor 21 consisting of a controller 1 to a roll box 20 which turns the electromagnetic valve 18 on and off by turning it off.

In the snow dry supply device 22 having the configuration described in (d), when the on-off valve 10 of the liquefied carbon dioxide gas supply passage 9 is opened and the on-off valve 7 of the υ1 outlet passage G is opened, the snow dry 23 is discharged from the nozzle 8. be done.

At this time, the vaporized carbon dioxide gas 28 generated in the liquefied carbon dioxide supply passage 9 accumulates in the gas-liquid separator 5, and if a predetermined amount or more of vaporized carbon dioxide gas 2Δ accumulates in the gas-liquid separator 5, the When the amount of liquefied carbon dioxide 2 in the gas-liquid separator 5 exceeds a predetermined amount, the float switch 19 of the sensor 21 turns ON, opens the solenoid valve 18 in the gas discharge passage 15, and vaporizes the gas-liquid separator 5. Carbon dioxide gas 2△ is discharged to the outside.

For this reason, the liquefied carbon dioxide 2 flows into the gas-liquid separator 5 from the liquefied carbon dioxide supply passage 9, and the liquefied carbon dioxide in the gas-liquid separator 5 increases.

When a predetermined amount or more of liquefied carbon dioxide gas 2 enters the gas-liquid separator 5, the float switch 19 of the lenser 21 is turned off, and the solenoid valve 18 of the gas discharge passage 15 is closed.

Therefore, by opening the on-off valve 7 of the discharge passage 6, only the liquefied carbon dioxide gas 2 flows through the discharge passage 6.
The snow dry 23 is reliably discharged from the nozzle 8.

In addition, in the embodiment of the present invention, the liquefied carbon dioxide gas supply passage 9
In the above description, the gas-liquid separator 5 side is installed in such a way that the height of the gas-liquid separator 5 becomes higher. However, the present invention is not limited to this. Even if the liquefied carbon dioxide supply passages 9 are arranged almost horizontally, even if a relatively large amount of vaporized carbon dioxide flows into the gas-liquid separation container, the vaporized carbon dioxide gas is efficiently prevented from flowing into the discharge passage 6. can do.

"Effects of the Present Invention" As is clear from the above description, the present invention provides the following effects.

(1) A belt conveyor installed indoors that continuously transports containers filled with snow dry, and a gas liquid that can discharge vaporized carbon dioxide placed above the containers transferred by this belt conveyor. A separator, and an opening/closing valve for controlling a nozzle that can fill snow dry into the container at the tip protruding downward from the gas-liquid separator.
A discharge passage for discharging liquefied carbon dioxide in the CC gas-gas-liquid separator, a liquefied carbon dioxide storage tank filled with liquefied carbon dioxide installed outdoors, etc., and a liquefied carbon dioxide gas in the liquefied carbon dioxide storage tank. The liquefied carbon dioxide supply passage is arranged so that the side of the gas-liquid separator is higher than the liquefied carbon dioxide storage tank that supplies the gas into the gas-liquid separator. The gas-liquid separator can reliably prevent vaporized carbon dioxide from being included in the gas. Therefore, it is possible to reliably generate and discharge dry snow from the nozzle. Therefore, it is possible to always fill a constant amount of snow dry into a container such as a delivery container transported by a belt conveyor.

(2) According to (1) above, replenishment of snow dry is made before the belt conveyor moves as in the past, or containers with less snow dry are refilled and the delivery order is disrupted. can be reliably prevented.

(3) According to (1) above, the vaporized carbon dioxide generated in the liquefied carbon dioxide supply passage automatically flows into the gas-liquid separator,
It can be discharged from the gas-liquid separator. Therefore, liquefied carbon dioxide gas always flows into the liquefied carbon dioxide gas supply passage, and snow drying can always be generated and discharged in an optimal state from the opening of the on-off valve.

(4) Due to the above (1), the structure is simple, so it can be easily implemented.

(5) Claim 2.3.4 also provides the same effects as the above (1) to (4).

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a single gas-liquid separator, and FIG. 3 is an explanatory diagram of the main parts of the gas-liquid separator. 1: Liquefied carbon dioxide storage tank, liquefied carbon dioxide, 2A: Vaporized carbon dioxide, belt conveyor, 4: Delivery container, gas-liquid separator, 6: Discharge passage, opening/closing valve, 8: Nozzle, liquefied carbon dioxide supply passage, opening/closing Valve, 11 Insulating material, 13 Discharge pipe, 15 Pressure gauge, 17 Solenoid valve, 19 Control box, Sensor Snow Dry supply device, Snow Dry, 24: Flow rate adjustment on-off valve. Gas-liquid separation container, supply pipe, gas discharge passage, safety valve, float switch, patent application Hito Showa Tanso Co., Ltd.

Claims (1)

[Claims] 1) A belt conveyor installed indoors that continuously transports containers filled with snow dry, and a belt conveyor that can discharge vaporized carbon dioxide placed above the containers transported by the belt conveyor. Discharging the liquefied carbon dioxide in the gas-liquid separator, which is equipped with a gas-liquid separator and an on-off valve having a nozzle at the tip protruding downward from the gas-liquid separator that can fill the container with snow drying. a discharge passage, a liquefied carbon dioxide storage tank filled with liquefied carbon dioxide installed outdoors or the like, and a liquefied carbon dioxide gas storage that supplies the liquefied carbon dioxide in the liquefied carbon dioxide storage tank to the gas-liquid separator. A snow dry supply device comprising a liquefied carbon dioxide supply passage arranged so that the side of the gas-liquid separator is successively higher than the tank. 2) A belt conveyor installed indoors that continuously transfers containers filled with Snow Dry, a gas-liquid separator placed above the containers transferred by this belt conveyor, and a gas-liquid separator that A discharge passage for discharging the liquefied carbon dioxide in the gas-liquid separator, which is equipped with an on-off valve having a nozzle at a downwardly protruding tip that can fill the container with snow drying, and a liquefied carbon dioxide installed outdoors, etc. A supply of snow drying characterized by comprising a liquefied carbon dioxide gas storage tank filled with gas and a liquefied carbon dioxide gas supply passage that supplies the liquefied carbon dioxide gas in the liquefied carbon dioxide gas storage tank to the gas-liquid separator. Device. 3) A gas-liquid separation container in which liquefied carbon dioxide gas and vaporized carbon dioxide gas are stored, and liquefied carbon dioxide gas from the liquefied carbon dioxide gas storage tank is stored in the gas-liquid separation container attached to the upper part of the gas-liquid separation container. a discharge pipe for discharging liquefied carbon dioxide from the gas-liquid separation container, which is attached to a portion near the bottom end of the gas-liquid separation container; and a portion near the top end of the gas-liquid separation container. A gas discharge pipe equipped with an electromagnetic valve for discharging the vaporized carbon dioxide in the gas-liquid separation container, and a float switch installed in the gas-liquid separation container are used to control the liquefaction of the gas-liquid separation container. A gas-liquid separator comprising a sensor that opens the electromagnetic valve to discharge vaporized carbon dioxide from the gas-liquid separation container when carbon dioxide falls below a predetermined amount. 4) A gas separation container that is vertically long and whose outer periphery is covered with a cold insulating material, in which liquefied carbon dioxide gas and vaporized carbon dioxide gas are stored, and a gas-liquid separation container that is attached to an upper part of the gas-liquid separation container. A supply pipe for supplying liquefied carbon dioxide gas from a liquefied carbon dioxide gas storage tank into the separation container, and a discharge pipe for discharging liquefied carbon dioxide gas in the gas-liquid separation container, which is attached to a portion near the lower end of the gas-liquid separation container. a pipe, a gas discharge pipe equipped with a solenoid valve installed near the upper end of the gas-liquid separation container and discharging vaporized carbon dioxide in the gas-liquid separation container; It is characterized by comprising a sensor that opens the electromagnetic valve and discharges the vaporized carbon dioxide in the gas-liquid separation container when the liquefied carbon dioxide in the gas-liquid separation container falls below a predetermined amount using an attached float switch. Gas-liquid separator.