JPS5873171A - Cryogenic vessel - Google Patents

Abstract

PURPOSE:To prevent flowing of gas into a normal temperature part due to the vibration and inclination, etc., and to stabilize the operation of a cryogenic vessel by a method wherein a route to make recovery gas to flow, being bent upward in the vertical direction once from the horizontal part toward the tip, and then bent downward, is provided at the neighborhood of a tip part for recovery of gas, etc. CONSTITUTION:A gas recovery tube 12 is inserted horizontally in an inside equipment 2 of a cryogenic vessel 13, and the neighborhood of tip of the recovery tube 12 thereof is formed in a reverse U-type in relation to a liquid face 9. When a coolant 4 in the vessel 13 jumped in an inlet 12a of the recovery tube 12, flowing into a normal temperature part 10 is prevented by a curve part 14 curved in the reverse U-type. Accordingly, by preventing flowing of the coolant 4 into the normal temperature part 10 like this way, generation of abnormal pressure in the inside tank 2 is prevented, and regulation of operation of a cooler is stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cryogenic container for cooling super 4 conductor +15,
In particular, the present invention relates to a cryogenic container 4 that is often viewed at a place where a magnetic levitation train or the like is installed, and which is used in a closed area and swings.

The cryogenic container (1) used in the magnetic levitation train is equipped with an inner tank (2) and an outer tank (3) as shown in FIG.
2) stores liquid helium (4), houses the superconducting coil (5) and cools it, and a #-heat exchanger connected to the cooling machine (6) in 1 (2) of the cryogenic container (1). (The structure is sealed so that the liquid helium, that is, the refrigerant (4), can be cooled or re-liquefied. It is necessary to inject the gas into the inner tank (2) to recover the evaporated gas (if t87) to recover the evaporated gas generated at the time of 7. It is necessary to install this gas recovery pipe (8) in the horizontal direction as shown in the figure.
This is because the vehicle body is provided above the cryogenic container (1) used solely for the magnetic levitation train. However, in the 1st healing state after the refrigerant injection is finished, the gas recovery tt8) is not used and 1% is sealed off by IP in the room temperature part αQ.
It is closed with aυ.

However, if you use the cryogenic container (1) as described above mounted on a magnetic levitation train, the refrigerant (4) in the inner tank (2) will be recovered as a gas by filming the train and tilting the tank! (8) It jumps into the temperature zone G and I side and vaporizes, reducing the internal pressure of the inner tank (2)! This causes the heat load on the refrigerator (6) to fluctuate, making operation more expensive. On the other hand, the refrigerant (not shown) that injects the refrigerant is inserted vertically to the bottom of the inner tank, and the pole of the refrigerant injection tube is much thinner than the gas recovery pipe, so the refrigerant is not injected into the gas recovery pipe (8). (4) jumped in and inside 411
There is no possibility of a sudden increase in the internal pressure of f2).

The purpose of the present invention is to eliminate the above-mentioned drawbacks and swing.

To provide a cryogenic container ft that can prevent refrigerant from jumping into the normal part of a gas recovery pipe due to inclination or the like.

The present invention provides a horizontal part in the inner tank, and a cryogenic container equipped with a gas recovery pipe, which is placed near the tip of the gas recovery pipe, upward in a straight direction from the horizontal part toward the tip. It is constructed by forming a curved portion that is bent upward and then bent downward so that the collected gas flows through the bent portion.

Hereinafter, a typical embodiment of the present invention will be explained using FIG. iJ2. Components that are the same as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

The part near the tip of the gas recovery tube 4 inserted horizontally into the cryogenic container α (2) according to the present invention is placed in an inverted Y shape with respect to the liquid iii (9). From the horizontal part I of u4 toward the tip, - is bent upward in the vertical direction, and then bent downward VC to form a bent part al19 so that the tip entrance a$ is directed downward.

With this configuration, vibrations, tilting, etc. can cause extremely low
Even if the refrigerant (4) in 603 jumps into the gas recovery pipe u4 population α9, the refrigerant (4) reaches room temperature &li4 due to the bend uE9.
) does not flow and returns to the refrigerant (4) in the inner layer (2), so abnormal pressure will not occur, so fluctuations in the thermal load will not cause the refrigerant to shift. It disappears. Father, <1 t of gas recovery pipe 04 from part a 01
2) Since the distance C can be made longer, the difference between the temperature of the refrigerant (4) and the temperature of the population u9 of the gas recovery Mu can be reduced. Furthermore, since the separation between the population Q4 of the gas recovery pipe 04 and the ridge surface (9) of the refrigerant (4) can be maintained sufficiently to prevent the refrigerant from jumping in, it has excellent effects such as improving thermal efficiency. .

In the same NC implementation, the curved part of the gas recovery pipe was provided at the tip, but it may be provided in the middle of the gas recovery pipe as long as it is inside the inner tank.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a conventional cryogenic @ finger, and FIG. 2 is a sectional view showing a cryogenic temperature device according to the present invention. (2)...Inner tank, (4)...Refrigerant. (9)...liquid level, OG...im part. a4...Gas recovery pipe, 01...Extremely low volume container. Q4...Horizontal area, residence $...Population. α groan... song section. Agent Masu Rishi Nori Ko @ City (1 other person)

Claims (1)

[Claims] In a cryogenic container equipped with a gas recovery pipe that stores refrigerant in an inner tank and inserts a water part from the normal temperature part into the inner tank, the horizontal part of the Ail mark is placed near the light leakage of the gas recovery pipe. A cryogenic container characterized by forming a curved part that is first bent vertically upward and then bent downward so that recovered gas flows.