JPH11148782A - Vapor condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vapor condenser which prevents occurrence of noise or vibration that follows collapse of vapor mass under water. SOLUTION: A vapor discharge pipe 1 is provided with a vapor inlet 4 and a vapor discharge hole 7, while a long spiral plate-like member 2 is fitted at a center part, with its lower end allowed to move vertically freely based on changes in vapor amount and flow speed flowing through the inlet 4, a fitting length of the long spiral plate-like member 2 changes so that discharge position and angle of the vapor discharged into water through the discharge hole 7 changes to diffuse vapor stream, resulting in prevented growth to a large vapor mass under water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam condenser for discharging remaining steam used in various steam-using devices, re-evaporated steam generated from a high-temperature drain, etc., directly into water through a steam discharge pipe and condensing the same. .

[0002]

2. Description of the Related Art A conventional steam condenser of this type is disclosed, for example, in Japanese Utility Model Laid-Open No. 50-76202. This is designed so that the area of steam discharged into the water in the steam discharge pipe increases in the same manner as the depth of water increases, and is proportional to the amount of steam supplied even if the amount of supplied steam changes. And the contact area between steam and water changes,
It is intended to prevent the generation of noise and vibration during vapor condensation.

[0003]

The above-mentioned conventional steam condenser can reduce noise and vibration at the time of condensation of steam to some extent, but cannot prevent noise and vibration more reliably. there were. This is because the steam that is continuously discharged from the steam discharge hole combines in water and grows into a large steam mass, which is condensed and crushed at once, generating noise and vibration. Things.

[0004] Accordingly, an object of the present invention is to provide a steam condenser which can prevent the noise and vibration during the condensation of the steam more reliably by preventing the steam discharged into the water from growing into a large lump. is there.

[0005]

Means taken to solve the above-mentioned problem is that in which a steam discharge pipe is arranged in water and steam is directly discharged from the steam discharge pipe into the water to condense the steam. A long plate-like member is spirally provided along the downward direction of steam in the discharge pipe, and at least one end of the long plate-like spiral member is fixed and attached, and the other end is in a free state or a flow of steam. The helical long plate-like member is provided so as to be slidable in the direction, and is displaceable by a steam flow.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS By providing a spiral long plate-like member so as to be displaceable by a steam flow, when the steam flow changes, the spiral long plate-like member is displaced, and the steam flow further increases. Change. Since the steam flow changes greatly along the helical long plate-like member, the steam is not continuously discharged from the same discharge hole, and the discharge of the steam is dispersed, and a large steam lump is formed in the water. And never. Therefore, it is possible to reduce noise and vibration caused by crushing of the steam mass in water due to rapid condensation.

The helical long plate-shaped member is preferably made of a thin plate made of a metal spring plate material, and the length in the helical direction is sensitively changed by the steam flow. Further, it can be made of a thin plate material exhibiting superelasticity. In any case, a device that constantly changes the position and direction of discharge of steam into water by a steam flow is suitable as a helical long plate-shaped member.

[0008]

1, a steam condenser 3 is constituted by a steam discharge pipe 1 and a helical long plate-like member 2. Steam discharge pipe 1
Of the steam exhaust pipe 1 by connecting the inlet 4 of the
Submerged in water 5 for use.

The steam discharge pipe 1 has a bottom portion closed by a lid 6 and a plurality of steam discharge holes 7 provided on a side surface. A sliding shaft 8 whose upper part is fixed to the steam discharge pipe 1 and whose lower part is fixed by the lid 6 is attached to the center of the steam discharge pipe 1. The spiral long plate-shaped member 2 is disposed on the outer periphery of the sliding shaft 8 so as to be slidable up and down. In the present embodiment, the upper end portion 9 of the spiral plate member 2 is fixed to the steam discharge pipe 1 by welding or the like. The lower end of the helical plate member 2 is in a free state, and the outer periphery of the sliding shaft 8 is slidably attached.

The steam flowing into the steam discharge pipe 1 from the inlet 4 is condensed into the water from the discharge hole 7 while rotating by the spiral long plate-like member 2. In this case, the helical plate-like member 2
Expands and contracts downward, thereby changing the position and the discharge angle of the discharge hole 7 of the discharged steam, and dispersing the flow of the steam into the water, so that the steam grows into a large steam mass in the water. Therefore, noise and vibrations associated with the crushing of sudden condensation of a large vapor mass can be almost eliminated.

[0011]

According to the present invention, by changing the discharge position and discharge angle of the steam discharged into the water by the spiral long plate-like member, the flow of the steam into the water is dispersed, Because it does not grow into a large steam mass at
Noise and vibration caused by the crushing of the steam mass can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a sectional configuration view showing an embodiment of a steam condenser of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steam discharge pipe 2 Spiral long plate-like member 4 Inlet 7 Steam discharge hole 8 Sliding shaft

Claims (1)

[Claims] A steam discharge pipe is disposed in water, and steam is directly discharged from the steam discharge pipe into water to condense the steam. The long plate-shaped member is formed in a spiral shape along the downward flow of steam in the steam discharge pipe. In addition, at least one end of the helical elongated plate-shaped member is fixed and attached, and the other end is slidably attached in a free state or in a steam flow direction, and is helically elongated by the steam flow. A steam condenser characterized in that a plate member is provided so as to be displaceable.