JPH0443748Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to the improvement of an open rack type vaporizer for vaporizing liquefied natural gas. This invention relates to an open rack type vaporizer that prevents tie bars or heat exchange panels from being deformed or damaged, improves stability during operation, and extends the life of the heat exchange panels.

BACKGROUND TECHNOLOGY An open rack type vaporizer is a single panel made by arranging finch tubes of a desired shape in parallel, a header tank is provided at the upper and lower ends of the panel to form a heat exchange panel, and a plurality of such panels are arranged in parallel to form a single panel. The structure is such that sea water, which is a heat medium, flows down onto the heat exchange panel surface from a water sprinkler placed above each panel.

This open rack type vaporizer is constructed by combining a plurality of heat exchange panels 1 into one set, as shown in Fig. 5, in order to prevent vibrations caused by fluid flowing inside and outside, and to cope with vibrations of heat exchange panels during earthquakes. , the end plate 3 of the lower header tank 2 of each heat exchange panel 1 is connected and fixed with bolts to the horizontally arranged tie bar 5 through the insulation material 4, and the center part of this tie bar 5 is attached to the base 6. By connecting to the bracket 8 sandwiched between the fixed guide plates 7, the tie bar 5 is held movable up and down, restraining the movement in the horizontal orthogonal direction to the lower header tank 2 axes, and preventing the heat exchange panel 1 from shaking. are doing.

Conventionally, in an open rack type carburetor with such a configuration, during operation, seawater etc. sprayed may cause a drift on the panel surface, or may scatter on the upper outer periphery of the horizontally arranged lower header tank, causing the lower outer periphery Due to differences in the amount of contraction in the axial direction of each lower header tank, such as a decrease in the amount of heat transfer medium flowing down, the tie bar may be permanently deformed due to the difference in the amount of contraction of multiple lower header tanks connected to one tie bar. There were problems such as damage to the bolts, damage to the bolts, and even deformation and damage to the heat exchange panels.

Purpose of the invention This invention prevents vibration-proofing and anti-vibration tie bars from being deformed or damaged due to thermal contraction of the lower header tank.
Another objective is an open rack type vaporizer that prevents heat exchange panels from being deformed or damaged, improves safety during operation, and extends the life of the heat exchange panels.

Structure and Effects of the Idea This idea consists of a set of heat exchange panels with header tanks installed on the top and bottom, arranged in parallel in an upright position, and a liquefied gas supply manifold connected to one end of the parallel lower header tanks. The open rack type carburetor is characterized in that the other end of each lower header tank is supported independently of each other on a fixed base or a tie bar installed horizontally on the base so that the header can freely move in the axial direction and vertically. It is an open rack type vaporizer.

This idea allows the other ends of each lower header tank to be held independently of each other on a base or a tie bar installed horizontally on the base, and to clamp or hold the header through a heat insulating member so as to be able to move freely in the axial direction and vertically. It releases the restraint of the lower header tank end by the conventional anti-vibration and anti-vibration tie bars, allowing the lower header tank to expand and contract in the axial direction, and also functions as a steady rest for the heat exchange panel, which is essential during operation or during earthquakes. This is what we have ensured. With this configuration, one end of the lower header tank is a free end that is not constrained in the axial and vertical directions, so the heat exchange panel or vibration isolation/anti-vibration tie bars will not be deformed or damaged, and stability during operation will be improved.
Safety is ensured and the life of the heat exchange panel can be extended.

In this invention, the heat exchange panel may be of any known configuration, and the configuration of the liquefied gas supply manifold may be a common manifold configuration as in the embodiment or an individual supply configuration. Any configuration of the vibration-proofing, anti-vibration, or supporting guide provided on the liquid supply side of the header tank can be applied.

In addition, in this invention, as a means for supporting the other end of each lower header tank independently of each other on a base or a tie bar installed horizontally on the base so as to be movable in the axial direction and vertically, for example, as shown in the embodiment. As shown in FIG. Any supporting means such as clamping, gripping, and grasping may be used as long as the lower header tank is movable up and down.Furthermore, the lower header tank may be configured to directly clamp or grip the end portion of the lower header tank without an end plate.

DISCLOSURE BASED ON DRAWINGS OF THE INVENTION FIGS. 1 to 3 are detailed explanatory views of a guide portion supporting a lower header tank of an open rack type carburetor according to this invention. FIG. 4 is a top view and a front view of the open rack type carburetor according to this invention. FIG. 5 is an explanatory top view of a conventional open rack type carburetor.

As shown in FIG. 4, the open rack type vaporizer has fin fins arranged in parallel in the fin direction to form a single panel, and header tanks are provided at the upper and lower ends of the heat exchange panel 10. A plurality of panels, in this case six panels, are arranged vertically in parallel, and the six parallel lower header tanks 16 are connected to one manifold 11 arranged orthogonally to one end of the lower header tanks 16, and the liquefaction A configuration in which the gas is supplied, and further, seawater or the like flows down onto the heat exchange panel 10 surface from a water sprinkler (not shown) disposed above each panel 10, and heat is exchanged with the liquefied gas rising from the lower header tank 16 inside the finch tube. Consisting of

The manifold 11 has a vertical member 12 attached to its center lower part, and a bracket 13 at the tip thereof can be moved up and down by a support member 15 on the base 14 side.

The examples shown in FIGS. 1 to 3 are cases where the tie bars are not used, and in each case, the closed end side of each lower header tank 16 is connected to a pair of individual clamping members 3
1 through a heat insulating material 32.

In the case of FIG. 1, a clamping member 31 is fixed to a base 30 at a required interval on both main surfaces of an end plate 17 protruding from the closed end surface of the lower header tank 16.
The lower header tank 16 has a structure in which a heat insulating material 32 such as Bakelite is interposed between the opposing surfaces of the lower header tank 16 to ensure axial expansion and contraction and vertical movement of the lower header tank 16 and to prevent it from rolling.

In the case of FIG. 2, a heat insulating material 32 such as Bakelite is used between the opposite end surfaces of the end plate 18 whose main surface is fixed to the closed end surface of the lower header tank 16 and the opposing surfaces of the clamping member 31 which is fixed to the base 30 at a required interval.
It has a structure in which the lower header tank 16 is held in place by interposing it, and has the function of ensuring the axial expansion and contraction and vertical movement of the lower header tank 16 and preventing it from rolling.

In the case of FIG. 3, the closed end of the lower header tank 16 is sandwiched between opposing surfaces of a clamping member 31 fixed to a base 30 at a required interval, with a heat insulating material 32 such as Bakelite interposed, It has a function of ensuring axial expansion and contraction and vertical movement of the lower header tank 16, and also preventing horizontal shaking.

With this configuration, each lower header tank 16 of the open rack type carburetor is supported at its end side by mutually independent clamping members 31 as a free end in which expansion and contraction in the axial direction and movement in the vertical direction are not restricted, and the lower header tank 16 is Even if heat shrinkage occurs due to the introduction of liquefied gas into the heat exchanger panel 16, the clamping member 31 and the heat exchange panel 10, which function as anti-vibration and anti-vibration components, will not be deformed or damaged, ensuring stability and safety during operation. This also makes it possible to extend the life of the heat exchange panel.

Further, FIG. 4 shows a case where tie bars 20 are used, and an end plate 17 is provided at the other closed end of the lower header tank 16 of each heat exchange panel 10.
The tie bar 20 protrudes in the axial direction, is arranged horizontally in the orthogonal axial direction of the lower header tank 16, and is fixed to the locking member 24 of the base 14 via the bracket 23 in the center. A pair of clamping members 21 are installed at positions facing the plate 17, and hold the end plate 1 through a heat insulating material 22.
7 and restrain the movement in the horizontal direction perpendicular to the axis of each lower header tank 16.
This prevents horizontal shaking of the vehicle and ensures axial expansion and contraction and vertical movement of each lower header tank 16.

Note that the tie bar 20 has a bracket 23 in the center.
Although an example is shown in which it is fixed via a plurality of locations, it may be fixed at multiple locations.

With this configuration, the end sides of each lower header tank 16 are supported by mutually independent clamping members 21 as free ends that are not restrained from expanding and contracting in the axial direction and in the vertical direction, and the tie bars 20 function as vibration isolation and vibration resistance. In addition, the heat exchange panel 10 is not deformed or damaged, stability and safety during operation are ensured, and the life of the heat exchange panel can be extended.

[Brief explanation of the drawing]

1 to 3 are detailed explanatory views of the guide portion supporting the lower header tank of the open rack type carburetor according to this invention. FIG. 4 is a top view and a front view of the open rack type carburetor according to this invention. FIG. 5 is an explanatory top view of a conventional open rack type carburetor. 10... Heat exchange panel, 11... Manifold, 12... Vertical member, 13, 23... Bracket, 14, 30... Base, 15... Support member, 1
6... Lower header tank, 17, 18... End plate, 20... Tie bar, 21, 31...
Clamping member, 22, 32...insulating material, 24...locking member.

Claims (1)

[Scope of utility model registration request] In an open rack type vaporizer, a plurality of heat exchange panels with header tanks installed on the upper and lower sides are arranged vertically in parallel as a set, and a manifold for supplying liquefied gas is connected to one end of the parallel lower header tanks. An open rack type carburetor characterized in that the other end of each lower header tank is supported independently of each other on a base or a tie bar installed horizontally on the base so that the header can freely move in the axial direction and vertically.