JPH0337679B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for measuring the amount of steam leakage from a steam trap, which measures the operating state of a steam trap, that is, whether or not steam is leaking, and the amount of leakage.

Steam traps are installed on steam lines and steam-using equipment to automatically drain only condensate without leaking steam. As fuel costs soar, steam leakage has become more and more of a concern. The prerequisite for the adoption of steam traps is that they do not leak steam. Even after installation, the pipes are closely monitored, and steam traps leaking steam are being repaired or actively replaced.

Various steam trap leak detectors have been developed and put into practical use.

For example, a see-through window is installed on the outlet side piping of a steam trap to visually observe the state of the fluid inside, and a thermometer or vibration meter is used to measure the surface temperature of the steam trap and the sound of fluid flow. It is.
In either case, it was only possible to qualitatively observe the leakage state of the steam trap, and it was not possible to quantitatively measure the amount of leakage. Therefore, the degree of leakage had to be determined by relying on human intuition.

BACKGROUND ART Therefore, the applicant of the present application developed a simple steam trap steam leakage measuring device, and proposed one of the devices in Japanese Patent Application Laid-Open No. 62-212525. This is placed between the steam supply side and the steam trap, and measures the amount of steam leakage from the correlation between the amount of steam passing through the orifice and the water level on the primary side.

Problems to be Solved by the Invention In the above system, the water level before and after the orifice changes depending on the amount of condensate flowing into the measuring device, and the water surface on the primary side of the orifice is rippled by the inflowing condensate. However, there was a problem in which it was not possible to accurately measure the amount of steam leakage.

The technical problem of the present invention is therefore to make it possible to accurately measure the amount of steam leakage without being affected by changes in inflow condensate and its amount.

Means for Solving the Problems The technical means of the present invention, which is designed to solve the above-mentioned technical problems, includes a liquid storage chamber in a casing, an inlet for introducing fluid into the upper part of the liquid storage chamber, and an inlet for introducing fluid into the liquid storage chamber. An outlet is formed to lead out the liquid, and a partition is provided in the liquid storage chamber.
It is divided into an inlet chamber that communicates with the inlet, an outlet chamber that communicates with the outlet, and a measurement chamber between them, and a space for liquid passage that communicates the inlet and outlet chambers is formed below the partition wall, and the space and the measurement chamber are separated. An opening is made in the partition wall to communicate the gas, an opening is made in the partition wall for gas passage to communicate the inlet and outlet through the measurement chamber, and a partition wall is also provided in the measurement chamber. ,
The area above the lower limit opening of the inlet and outlet is partitioned into the inlet side and the outlet side, a means for measuring the water level in the measurement chamber is provided, and a means is provided for calculating and displaying the amount of steam leakage from the water level value detected by the water level measuring means. , is a thing.

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

The inlet and outlet are connected between the steam supply and the steam trap. When the steam trap is working normally, the water levels in the inlet, outlet and measurement chambers are the same. When the steam trap causes steam leakage, the amount of steam leaked passes through the gas passage opening and flows to the inlet and outlet, lowering the water level in the measurement chamber. This drop in water level is detected by water level detection means such as electrodes and floats. Since the flow rate calculation display stores in advance the relationship between the water level and the gas flow rate through the gas passage opening, the amount of steam leakage can be calculated and displayed from the water level value detected by the water level detection means.

When the amount of condensate flowing in from the inlet changes, the water levels in the inlet and outlet chambers change accordingly, but the water level in the measurement chamber does not change because only the amount of leakage from the steam trap always passes through. Furthermore, although condensate flowing in from the inlet causes the water surface in the inlet chamber to ripple, the water surface in the measurement chamber does not ripple because it flows into the measurement chamber through the opening that communicates the liquid passage space with the measurement chamber.

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

Even if the amount of inflow condensate changes, the water level in the measurement chamber does not change, and the water surface in the measurement chamber does not ripple due to inflow condensate, so it is possible to accurately measure the amount of steam leakage.

Embodiment An embodiment illustrating a specific example of the above technical means will be described (see FIG. 1 and FIG. 2).

Liquid reservoir chambers 12, 14, 16 in the casing 10
and an inlet 18 and an outlet 2 opening at the top of the liquid reservoir chamber.
form 0. The casing 10 must have strength to withstand internal fluid pressure.

A concave partition wall 22 is provided from the top of the liquid reservoir chamber. A partition wall 22 divides the liquid reservoir into an inlet chamber 12 that communicates with the inlet 18 and an outlet chamber 1 that communicates with the outlet 20.
4 and a measurement chamber 16 between them. Entrance room 1
2 and the outlet chamber 14 are communicated through a space 24 for liquid passage below the partition wall 22.

An opening 26 is opened at the lower end of the partition wall 22 to communicate the space 24 and the measurement chamber 16. Openings 28 and 30 for gas passage are opened in the partition wall 22, and the inlet 18 and outlet 20 are communicated through the measurement chamber 16. The openings 28, 30 are opened at a position above the water level at the time of maximum liquid flow.

A partition wall 32 is provided passing through the top wall of the measurement chamber 16 and fixed with a mounting member 34. Partition wall 32 is entrance 1
8 and the outlet 20 above the opening lower limit positions 18a, 20a are partitioned into an inlet side and an outlet side. The partition wall 32 therefore allows the inlet 18 to pass through the opening 28 and the measuring chamber 16 below the partition wall 32 and through the opening 30 to the outlet 2.
Connects to 0.

A plurality of electrodes 36a, 36b, . . . , 36n having different heights are passed through and attached to the partition wall 32.
The partition wall 32 is made of an insulator. Therefore, the water level in the measurement chamber 16 can be measured by the electrodes 36a, 36b...36n. Electrode 36a, 3
A calculation display (not shown) that calculates and displays the amount of steam leakage from the correlation between the water level and the gas flow rate passing through the opening 30 is connected to 6b...36n.

Inlet 18 and outlet 20 connect between the steam supply and the steam trap. When the steam trap is working properly, the inlet chamber 12 and outlet chamber 14
and the water level in the measuring chamber 16 are the same as shown in FIG. If the steam trap causes steam leakage, the amount of steam leakage is
8, 30 from the inlet 18 to the outlet 20 and the water level in the measuring chamber 16 decreases. This drop in water level is detected by electrodes 36a, 36b...36n. The amount of steam leakage is calculated and displayed on the calculation display from the water level values detected at the electrodes 36a, 36b...36n.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a steam leak amount measuring device for a steam trap according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 1. 10: Casing, 12: Inlet chamber, 14: Outlet chamber, 16: Measurement chamber, 18: Inlet, 20: Outlet, 2
2: partition wall, 24: liquid passage space, 26: opening,
28, 30: gas passage opening, 32: partition wall, 3
6a, 36b...36n: Electrodes.

Claims (1)

[Claims] 1 A liquid reservoir chamber is formed in the casing, and an inlet for introducing fluid and an outlet for leading out the liquid are formed in the upper part of the liquid reservoir chamber, and a partition is provided in the liquid reservoir chamber so that the inlet chamber communicates with the inlet and the outlet communicates with each other. A liquid passage space that communicates the inlet chamber and the outlet chamber is formed below the partition wall, and an opening is made in the partition wall that communicates the space and the measurement chamber. An opening for gas passage communicating between the inlet and the outlet is provided in the partition wall at a position above the water level at the maximum flow rate of the liquid. divided into entrance and exit sides,
A steam trap measuring device for steam leakage amount, which is provided with means for measuring the water level in a measurement chamber, and means for calculating and displaying the amount of steam leakage from the water level value detected by the water level measuring means.