JPH0635898Y2 - Gas-tight deck penetration structure for pipes - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a gas-tight deck penetrating structure of a pipe installed in a cargo refrigerating barge of a refrigerating ship.

2. Description of the Related Art Conventionally, as shown in FIG. 2, a device of this type has heretofore been shown in FIG. 2 in which a sleeve joint 7 is fixed to the gas-tight deck 2 by welding so as to penetrate the gas-tight deck 2. The end of 7 was welded.

[Problems to be solved by the invention] As described in the related art, although the gas tightness of the penetration portion of the gas tight deck can be reliably ensured and the pipe can be fixed very easily, the cold air in the cargo hold is insulated from heat. There was a problem that it was transmitted from the wood to the pipe through the gas-tight deck, and the water in the pipe was frozen and blocked.

[Means for Solving the Problems] In order to achieve the above object, the present invention is directed to a ring-shaped seat liner having an inclined inner circumference, and a trapezoidal inner surface that is opposed to the seat liner and overlaps with the seat liner. A space ring forming a groove, a pipe and a ring-shaped gasket having a circular cross-section having a heat insulating property and a space ring holding bolt inserted between these sheet liners and the trapezoidal groove formed by the space ring A sheet liner with an inner diameter larger than the diameter is fixed to the opening of the deck by welding, a heat insulating gasket is installed between the outer circumference of the pipe and the trapezoidal groove, and the pace ring is fastened to the seat liner to attach the heat insulating gasket to the pipe. It is pressure-contacted with and secures gas tightness and heat insulation.

[Operation] The heat insulating gasket is installed between the pipe outer circumference of the gastight deck penetrating part and the trapezoidal groove, and when the space ring is tightened with the retainer bolt, the heat insulating gasket having a circular cross section is composed of the sheet liner and the space ring. The trapezoidal groove and the pipe are pressed to secure the gas tightness and prevent the cool air in the cargo hold from directly transferring heat from the gas tight deck to the pipe.

[Example] An example will be described with reference to the drawings. As shown in FIG. 1, a ring-shaped steel sheet liner 1 fitted to the outer diameter of the pipe 4 is provided in the opening of the gas-tight deck 2. The inner peripheral surface of the steel sheet liner 1 is an upward inclined surface, the space ring 5 paired with the steel sheet liner 1 is overlapped, and the inner peripheral surface of the space ring 5 forms a downward inclined surface. There is. A heat insulating gasket 3 is provided on the inner circumferences of the steel sheet liner 1 and the space ring 5, the inner diameter of the heat insulating gasket 3 matches the outer diameter of the pipe 4, and the outer diameter is the steel sheet liner 1. And a little larger than the inner diameter of the space ring 5,
By aligning the steel sheet liner 1 and the space ring 5 and tightening the holding bolts 6, the pipe 4 is pressure-bonded to the pipe 4 at the inclined surface to maintain airtightness. The holding bolt 6 is adapted to tighten the steel sheet liner 1 and the space ring 5 at several places around the space.

As the shape of the heat insulating gasket 3, a ring shape, a string shape and a half ring shape obtained by dividing the ring into two are used according to the outer shape of the pipe 4.

[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.

In this invention, the pipe is not in direct contact with the gas-tight deck, and the heat-insulating gasket is interposed in the gap between the gas-tight deck and the pipe. Increase.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of an essential part of a gas-tight deck penetrating portion of the present invention. FIG. 2 is a schematic cross-sectional view of a main part of a conventional gas-tight deck penetrating portion. Main symbols 1 …… Steel sheet liner 2 …… Gas-tight deck 3 …… Insulating gasket 4 …… Pipe 5 …… Space ring 6 …… Pressing bolt

Claims (1)

[Scope of utility model registration request] 1. A gas-tight deck is provided with a ring-shaped steel sheet liner matching the outer diameter of a pipe, and the inner peripheral surface of the steel sheet liner is an upward inclined surface, and the steel sheet liner A pair of space rings are overlapped with each other, the inner peripheral surface of the space ring forms a downward inclined surface, and a heat insulating gasket is provided on the inner peripheral surfaces of the steel sheet liner and the space ring. A gas-tight deck penetrating structure for a pipe, characterized in that a ring-shaped, a string-shaped and a half ring-shaped heat insulating gasket are crimped to the pipe by aligning a space ring and tightening a holding bolt.