JP2012087825A - Float type steam trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a float type steam trap in which a foreign substance adhering to a valve hole can be easily and certainly removed.SOLUTION: An entrance 5, a valve chamber 4 and an exit 7 of a steam trap are formed by a body 1 and a cap 2. A globe valve seat member 3 having a T-shape valve hole 10 is disposed for connecting a lower part of the valve chamber 4 to the exit 7. A float 13 for opening and closing the valve hole 10 is disposed in the valve chamber 4. The globe valve seat member 3 is rotatably disposed to be supported by the body 1 and a valve seat holding member 12. A cleaning through-hole 11 is disposed in the body 1 opposing to the valve hole 10. When the valve hole 10 is clogged with a foreign substance such as dust, the globe valve seat member 3 is positioned at a rotation position, and the foreign substance in the valve hole 10 can be reliably removed by directly cleaning the valve hole 10 through the cleaning hole 11.

Description

The present invention relates to a float type steam trap that automatically discharges condensate as condensate of steam generated in a steam piping system to the outside of the system by floating up and down of the float, and is particularly attached to a valve hole that is opened and closed by the float. It is related with what can wash the foreign material.

A conventional float trap is disclosed in, for example, Patent Document 1. This is because a casing is formed with an inlet, a valve chamber, and an outlet, a valve seat member having a valve hole communicating with the valve chamber on the outlet side is provided at the lower portion of the valve chamber, and a float that opens and closes the valve hole is disposed in the valve chamber. An operation member that can be manually operated to advance and retract from the outside is disposed in the valve hole, and foreign matter adhering to the inner surface of the valve hole due to advancement and retraction of the operation member is cleaned.

Japanese Utility Model Publication No. 49-36747

The conventional float trap has a problem that a manual gap is required to clean the foreign matter adhering to the inner surface of the valve hole because the operating member is manually advanced and retracted.

Therefore, the problem to be solved by the present invention is to provide a float type steam trap that can easily and reliably remove foreign substances adhering to a valve hole.

In order to solve the above problems, the present invention provides a valve seat member having a valve hole that forms an inlet, a valve chamber, and an outlet in a casing, and communicates the valve chamber with the outlet side at a lower portion of the valve chamber. A valve seat member having a spherical valve seat member formed in a spherical shape and a valve hole formed in a T-shape so as to be rotatable in a casing. A spherical valve seat member cleaning port is provided through a casing facing the hole.

According to the present invention, the spherical valve seat member is disposed in the casing so as to be rotatable, and the casing facing the valve hole of the spherical valve seat member is provided through the cleaning port of the spherical valve seat member. The valve hole can be cleaned directly through the cleaning port, and foreign matter adhering to the valve hole can be easily and reliably removed.

It is sectional drawing of the float type steam trap concerning embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. A lid 2 is fastened to the main body 1 with a bolt (not shown) to form a casing having a valve chamber 4 therein. The main body 1 has an inlet 5 and an outlet 7. The inlet 5 communicates with the upper portion of the valve chamber 4, and the inlet 5 and the outlet 7 are formed on the same axis. A spherical valve seat member 3 having a T-shaped valve hole 10 is disposed below the valve chamber 4. The spherical valve seat member 3 is attached to be rotatable from the outside. The T-shaped valve hole 10 is a rotational position when the valve hole 10 is cleaned from the outside in the state shown in FIG. 1, and when used as a normal steam trap, it is counterclockwise by 90 degrees from the state shown in FIG. Rotate to use.

A hollow spherical float 13 that opens and closes one end of the valve hole 10 by being seated on and off the spherical valve seat member 3 in the valve chamber 4 is disposed in a free state. A float seat 14 with which the float 13 abuts at a position where one end of the valve hole 10 is closed is provided below the float 13.

The main body 1 facing one end of the T-shaped valve hole 10 of the spherical valve seat member 3 is provided with a cleaning port 11 through which the valve hole 10 can be cleaned directly from the outside. The spherical valve seat member 3 is held by a valve seat holding member 12 attached to the main body 1. A passage 6 is provided above the spherical valve seat member 3 to communicate with the outlet 7.

The operation of the float type steam trap is as follows. Normally, the spherical valve seat member 3 is rotated 90 degrees counterclockwise from the state shown in FIG. Condensate flowing in from the inlet 5 flows down into the valve chamber 4. The float 13 rises and falls according to the liquid level of the condensate accumulated in the valve chamber 4 and is seated on and off the spherical valve seat member 3 to open and close one end of the valve hole 10. When one end of the valve hole 10 is opened, condensate in the valve chamber 4 is discharged from the valve hole 10 through the passage 6 to the outlet 7, and when one end of the valve hole 10 is closed, leakage of steam in the valve chamber 4 is prevented. The

When foreign matter such as dust, iron rust or scale adheres to the valve hole 10, the valve hole 10 is directly cleaned from the cleaning port 11 by setting the T-shaped valve hole 10 to the state shown in FIG. Can do.

  The present invention can be used not only for the above-mentioned free float type steam trap but also for a lever float type steam trap.

DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Spherical valve seat member 4 Valve chamber 5 Inlet 7 Outlet 10 T-shaped valve hole 11 Cleaning port 12 Valve seat holding member 13 Float

Claims (1)

In the casing, an inlet, a valve chamber, and an outlet are formed, and a valve seat member having a valve hole that communicates the valve chamber with the outlet side is provided at a lower portion of the valve chamber, and a float that opens and closes the valve hole is disposed in the valve chamber. A spherical valve seat member in which the valve seat member is formed in a spherical shape and a valve hole is formed in a T-shape is rotatably disposed on the casing, and the spherical valve seat member is cleaned in the casing facing the valve hole of the spherical valve seat member. Float type steam trap characterized by being provided through the mouth.