JPH0244188Y2 - - Google Patents

Description

[Detailed description of the invention] <Purpose> This invention is installed on the discharge side of a steam trap that operates intermittently, and calculates the number of times a valve, valve seat, etc. operate normally, by integrating the number of times the trap operates, that is, its durability. The purpose is to provide testing equipment to confirm the

<Example> Hereinafter, an example of the present invention will be explained based on the drawings.
, a mounting base 2 to which the counter 1 is attached, and a condensate outlet 3 fixed to the bottom part 2a of the mounting base 2.
a cylinder 4, a dish-shaped piston 6 movably fitted inside the cylinder 4 with a gap 5 therebetween, and a cylindrical body 7 erected above the cylinder 4; , a condensate inlet 8 formed in a part of the cylinder body 7, and a condensate inlet 8 formed in a part of the cylinder body 7;
An introduction passage 9 formed in the cylinder body 7 so as to lead to the top of the
, a shaft rod 10 that is vertically movably fitted into the cylinder body 7 and whose lower end is fixed to the center of the piston 6; and a counter 1 connected to the upper end 10a of the shaft rod 10.
a lifting spring 1 interposed and connected between the arm 1a and the upper part 2b of the mounting base 2;
It consists of 1.

In the figure, 12 is a shock-reducing spring interposed and connected between the arm 1a and the upper end of the shaft 10, 13 is an orifice for releasing residual pressure drilled in the bottom of the piston 6, and 14 is fixed to the bottom of the cylinder 4. This is a stroke adjustment body for the piston 6.

Next, to explain the operation, the condensate discharged from the steam trap has a discharge pressure and a flow velocity, is led directly to the condensate inlet 8 of this device, passes through the introduction path 9, and flows into the chamber 6a of the piston 6. . Usually piston 6
The upper end 6b is pressed against the top surface 4a of the cylinder 4 by the lifting spring 11, and the piston chamber 6a is in a sealed state, so that the flow pressure of the inflow condensate overcomes the lifting force of the lifting spring 11. ,
Push down the piston 6 and shaft 10. However, a gap 5 is formed between the piston 6 and the inner wall of the cylinder 4, which is sufficient to discharge the inflowing condensate, and the condensate that has impulsively flowed into the chamber 6a of the piston 6 is discharged from the gap 5. The condensate exits from the condensate outlet 3. As a result, the piston 6 and the shaft rod 10 are pulled upward again by the force of the lifting spring 11. This one-cycle movement causes counter 1 to count once. This is repeated below.

In addition, in the above, if the residual pressure relief orifice 13 is not provided, the force of the lifting spring 11 will overcome the steam trap discharge pressure just before the steam trap stops blowing.
Although the residual pressure is on the upstream side of the piston 6, the piston 6 is pulled up and the condensate is not discharged, so it accumulates inside the piston 6, such as the interior 6a, and has a negative effect on the operation of the steam trap. In the above embodiment, this phenomenon does not occur because of the residual pressure relief orifice 13.

<Effects> As is clear from the above explanation, with this invention, the number of steam trap operations, which was previously considered extremely difficult to measure, can be easily and accurately measured if the steam trap is of a type that operates intermittently. You can expect excellent results.

[Brief explanation of the drawing]

The drawing is a sectional view of the steam trap test device of the present invention. 1: Counter, 2: Mounting base, 3: Condensate outlet,
4: cylinder, 5: gap, 6: piston, 7: barrel, 8: condensate inlet, 9: introduction path, 10: shaft rod, 1
1: Spring for lifting, 13: Orifice for releasing residual pressure.

Claims (1)

[Scope of utility model registration request] A counter 1, a mounting base 2 to which the counter 1 is attached, a cylinder 4 fixed to the lower part 2a of the mounting base 2 and having a condensate outlet 3 at the bottom, and a gap 5 with respect to the inner peripheral surface of the cylinder 4. a dish-shaped piston 6 movably fitted inside the cylinder 4; a cylinder 7 erected above the cylinder 4; and a condensate inlet 8 formed in a part of the cylinder 7. An introduction path 9 is formed in the cylinder body 7 so as to communicate from the condensate inlet 8 to the top of the cylinder 4, and a shaft is fitted through the cylinder body 7 so as to be movable up and down, and its lower end is fixed to the center of the piston 6. A steam truck consisting of a rod 10, a counter arm 1a connected to the upper end 10a of the shaft rod 10, and a lifting spring 11 interposed and connected between the arm 1a and the upper part 2b of the mounting base 2. test equipment.