JPH0443678Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a steam extinguisher that is attached to the outlet of a steam trap to extinguish cloudy steam caused by re-evaporation of discharged condensate.

Steam traps are self-powered valves that are attached to steam piping and automatically discharge only condensate without letting steam escape.The condensate discharged is high-temperature, high-pressure water.
When exposed to the outside air, it reevaporates rapidly.

Conventional technology and its problems Steam traps include disk type, bimetal type, float type, etc. Disk-type traps open and close the valve intermittently and crisply, but float-type traps, for example, continuously change the degree of opening depending on the amount of inflowing condensate, and when the amount of inflowing condensate is small, they open and close in a half-open state. In some cases, condensate is continuously discharged from the outlet, so-called drip discharge. In this case, when the condensate discharge pipe is opened to the atmosphere, only condensate is normally discharged. ,
Due to the re-evaporation of condensate, steam rises up, leading to misidentification as a steam leak, unnecessary overhaul and inspection of the steam trap, replacement of products or parts, and aesthetic problems. I was told that I didn't like it, that it was an inconvenience.

Therefore, the technical problem of the present invention is to provide a steam extinguisher that eliminates the fuzzy steam produced when the steam trap drips and is discharged.

Means for Solving the Problems The technical means of the present invention taken to solve the above technical problems is to form a casing with a connecting member connected to the outlet of the steam trap and a main body having a discharge opening; A condensate reservoir is provided at the top,
A piston is placed below the condensate reservoir to form a through hole, a valve seat is formed at one end of the through hole, a spring-loaded valve body is placed opposite the valve seat, and the valve body is placed below the valve body. A fixing member is provided, a return spring is placed at the bottom of the piston, and a piston stopper made of a steel ball and a coil spring is provided on the side surface of the piston.

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

During drip discharge, condensate is discharged from the steam trap and accumulates in the condensate reservoir. When the accumulation amount is small, the pressure in the condensate accumulation area is low, the piston does not move due to the steel ball pushed by the coil spring, and the valve seat provided on the piston is closed by the spring-loaded valve body. ing. Therefore, no fuzzy steam is generated. As the amount of condensate increases further and the pressure in the condensate reservoir increases, the piston momentarily moves downward, overcoming the stopping force of the steel ball pushed by the coil spring. The valve body, which is biased by a spring in opposition to the valve seat, is restricted from moving downward by the fixing member of the valve body, and is opened away from the valve seat to instantly discharge condensate. When the discharge is completed and the pressure in the reservoir decreases, the return spring causes the piston to return, and the valve body closes the valve seat to close the valve. Therefore, it becomes a crisp opening/closing valve similar to a disk-type trap, and there is no longer any dripping or fuzzy steam.

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

The steam extinguisher of the present invention accumulates the dripping discharge until the pressure rises to a certain level and then discharges it, so it can operate intermittently with crispness, and can expel the fuzzy steam.

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

FIG. 1 shows the steam extinguisher according to the present invention connected to the outlet 12 of the steam trap 10.

The connecting member 1 is connected to the outlet 12 of the steam trap 10 by providing a through hole in the center and a screw on the outer periphery of the upper end. The outer periphery of the lower end is provided with a threaded portion to be connected to the main body 2.

The main body 2 has both ends open, and is connected to the connecting member 1 by providing a screw on the inner periphery of the upper end to form a casing. A condensate reservoir 13 is formed in the upper part of the casing. A piston 4 is disposed below the condensate reservoir 13, a through hole is provided in the piston 4, and a valve seat 11 is formed at one end of the through hole. The spherical valve body 3 is attached to the valve seat 1
1 and is biased by a valve body biasing spring 20. The other end of the valve body biasing spring 20 is fixed with a snap ring 21 provided on the inner circumference of the piston 4. A fixing member 14 of the valve body 3 is integrated with the main body 2 at the lower part of the valve body 3.
is provided as a stopper for the valve body 3.

A coiled return spring 5 is disposed below the piston 4 along the inner circumferential wall of the main body 2 so as to bias the piston 4 loosely.

A resistor 25 is provided on the side surface of the piston 4 so that a part of the steel ball 24 pushed by the coil spring 23 is fitted into it, and the pressing force of the coil spring 23 is adjusted with the adjusting screw 22.
Set the moving pressure.

A plurality of fins (not shown) may be provided around the outer periphery of the condensate reservoir 13 to promote cooling of the condensate in the reservoir, thereby further reducing the steam of the condensate discharged from the steam extinguisher.

During drip discharge, condensate flows from the steam trap 10 into the condensate reservoir 13 and accumulates therein. If the amount of accumulation is small, the pressure is low, and the piston 4 is connected to the coil spring 2.
The valve seat 11 does not move due to the holding force of the steel ball 24 and the valve seat 11.
is closed by the valve body 3 biased by a valve body biasing spring 20. When the pressure further increases, the piston 4 overcomes the stopping force of the steel ball 24 and momentarily moves downward. The valve element 3 is prevented from moving downward by the fixing member 14, and is opened to forcefully discharge condensate from the lower end opening 15 of the main body 2. When the discharge is finished,
The return spring 5 returns the piston 4 to the valve body 3.
closes the valve seat 11 and closes the valve.

By repeatedly operating the above-mentioned on-off valve and discharging condensate, the valve becomes a crisp intermittent on-off valve, eliminating the fuzzy steam caused by drip discharge.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a water extinguisher according to an embodiment of the present invention. 1... Connecting member, 2... Main body, 3... Valve body, 4
... Piston, 5 ... Return spring, 6 ... O ring, 10 ... Steam trap, 11 ... Valve seat, 13
...Condensate reservoir, 24...Steel ball.

Claims (1)

[Scope of utility model registration request] A casing is formed by a connecting member connected to the outlet of the steam trap and a main body having a discharge opening, a condensate reservoir is provided in the upper part of the casing, a piston is arranged below the condensate reservoir, and a through hole is provided. A valve seat is formed at one end, a spring-biased valve body is placed opposite the valve seat, a fixing member for the valve body is provided below the valve body, a return spring is placed at the bottom of the piston, and a spring is placed on the side of the piston. A steam trap steam extinguisher equipped with a piston stopper made of steel balls and coil springs.