JPH0467080B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steam extinguisher installed at the outlet of a steam trap to extinguish steam produced by re-evaporation of discharged condensate.

A steam trap is a self-operated automatic valve that is attached to a steam pipe and automatically discharges only condensate without letting steam escape.The condensate discharged is high-temperature, high-pressure water, so when it comes out into the outside air, it becomes hot. re-evaporate to.

Conventional technology and its problems Steam traps include disk type, bimetal type, float type, etc. Disk-type traps operate their valves intermittently and crisply, but for example, float-type traps may discharge condensate from the outlet in a half-open state, so-called drip discharge, and normally only condensate is discharged. Even though steam is being discharged, steam rises due to re-evaporation of condensate, leading to misidentification of steam leaks and unnecessary overhaul and inspection of steam traps, or replacement of products or parts. There were some inconveniences, such as being unsightly and aesthetically undesirable.

Therefore, the technical problem of the present invention is to obtain a steam extinguisher that extinguishes steam during drip discharge.

Means for Solving the Problems The technical means of the present invention taken to solve the above technical problems is to connect a discharge pipe to the outlet of the steam trap, and connect the condensate discharge port at one end of the discharge pipe to the outlet of the steam trap. established,
Continuous water storage chambers are provided at the upper and lower parts of the outlet, and the water level in the upper water storage chamber is lower than the water level in the lower water storage chamber, and excess water is drained into the water storage chamber through a drainage passage with an overflow structure while ensuring a predetermined amount of water in the water storage chamber. The water is discharged from the chamber, and the discharge port communicates with the upper and lower water storage chambers.

Effect The operation of the above technical means is as follows.

The condensate discharged from the outlet accumulates in the lower water storage chamber, and a portion of the condensate re-evaporates to become steam. Since the water level in the upper sump chamber is lower than the water level in the lower sump chamber, the reevaporated steam preferentially passes through the upper sump chamber.
The water chamber has an overflow structure and is filled with water, which cools and condenses the re-evaporated steam that passes through it, extinguishing the fuzzy steam. The heat taken from the steam is transferred to the casing and radiated to the outside. The condensed steam becomes condensate again, and excess water in the water reservoir drips into the lower water reservoir through the drainage passage of the overflow structure. The lower water storage chamber also has an overflow structure, and the stored condensate is cooled and then discharged to the outside of the system through the drainage passage.

Effect of the invention The present invention produces the following unique effects.

The steam extinguisher of the present invention cools only the reevaporated steam and extinguishes the steam, so the upper water storage chamber can be made smaller.
The shape of the steam extinguisher itself can be made smaller.

Embodiment An embodiment illustrating a specific example of the above technical means will be described (see FIG. 1).

FIG. 1 shows a steam extinguisher according to the invention connected to an outlet 10 of a steam trap 1. In FIG.

A screw is provided on the outer periphery of the upper end of the discharge pipe 2 to connect it to the outlet 10 of the steam trap 1. The lower end of the discharge pipe 2 remains open to form a discharge port 15.

At the upper part of the discharge port 15, between the discharge pipe 2 and the casing member 11, long plates 3 and 4 having a U-shaped cross section are vertically combined and arranged in a spiral shape to form the upper water reservoir chamber 16.
form. Furthermore, a second stage upper water reservoir chamber 17 is formed above the upper thrust water reservoir chamber 16 by the long plates 5 and 6 in the same manner. The number of water storage chambers is determined by the amount, pressure, temperature, etc. of condensate discharged from the steam trap 1.

A lower water reservoir chamber 18 is provided in communication with the discharge port 15 and the upper water reservoir chamber 16. The lower water reservoir chamber 18 is provided with a drain passage pipe 7 at the lower end of the casing member 11 projecting a certain length toward the discharge port 15 side, and a cover member having an inverted cup shape on the outer periphery of the protruding portion 14 and having a communication hole 9 at the bottom. 8.

The water level 13 in the upper water reservoir chamber 16 is lower than that in the lower water reservoir chamber 18.
, that is, the height of the protruding portion 14 .

The casing member 11 has a substantially cylindrical shape, and is provided with heat radiation fins 12 on the outside to enhance the cooling effect.

The condensate discharged from the steam trap 1 accumulates in the lower water storage chamber 18, and part of it re-evaporates to become steam, passes through the upper water storage chamber 16, and is cooled and condensed, so that steam does not rise. Both the condensate that has reached the lower water reservoir chamber 18 and the condensate that has condensed and dripped are temporarily stored in the lower water reservoir chamber 18, cooled, and then flowed out through the drainage passage pipe 7.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a water extinguisher according to an embodiment of the present invention. 1: Steam trap, 2: Discharge pipe, 7: Drain passage pipe, 8: Cover member, 11: Casing member, 1
2: Heat dissipation fin, 15: Discharge port, 16: Upper water reservoir chamber, 18: Lower water reservoir chamber.

Claims (1)

[Claims] 1 Connect a discharge pipe to the outlet of the steam trap, provide a condensate discharge port at one end of the discharge pipe, provide continuous water storage chambers above and below the discharge port, and adjust the water level in the upper water storage chamber to the lower water storage chamber. A steam trap water extinguisher that is lower than the water level and discharges excess water from the water storage chamber while securing a predetermined amount of water in the water storage chamber through a drainage passage with an overflow structure, and communicates the discharge port with the upper and lower water storage chambers.