JPH0338480B2 - - 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 becomes rippled due to 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 taken to solve the above-mentioned technical problems is to provide a liquid reservoir chamber in a casing, an inlet for introducing fluid into the upper part of the liquid reservoir chamber, and an inlet for introducing fluid into the liquid reservoir chamber. An outlet is formed to lead out the liquid, and a partition is provided in the liquid storage chamber.
The partition is divided into an inlet chamber communicating with the inlet and an outlet chamber communicating with the outlet. An opening communicating the inlet chamber and the outlet chamber is formed below the opening position of the inlet and outlet of the partition wall, and an inlet chamber is connected to the inlet chamber. A partition wall extending below the opening position is provided to divide the inlet chamber into an inlet side space and a measurement chamber, and a gas passage passage is formed in a portion of the partition wall above the water level at the maximum liquid flow rate. A means for measuring the water level in the measurement chamber is provided, and a means for calculating and displaying the amount of steam leakage from the correlation between the water level value detected by the water level measuring means and the amount of gas passing through the opening formed in the partition wall.

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 operating normally, the water levels in the inlet space, outlet chamber, and measurement chamber are the same. When the steam trap causes steam leakage, the amount of steam leaked passes through the opening formed in the partition wall and flows to the 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 openings formed in the partition wall, the amount of steam leakage can be calculated and displayed from the water level value detected by the water level detection means.

Steam passing through the partition wall is replenished into the measurement chamber through the gas passage when the amount of steam leakage is small, and through the gas passage and the lower end of the partition wall when the amount of steam leakage is large. be done.

When the amount of condensate flowing in from the inlet changes, the water level in the inlet and outlet chambers will change accordingly, but the water level in the measurement chamber will always be lowered by the amount of steam leaking from the steam trap. The amount of steam leakage can be accurately measured without being affected by changes in the amount of inflow condensate. In addition, the condensate flowing in from the inlet causes the water surface in the inlet side space to ripple, but if the amount of steam leakage is small, the steam flows into the measurement chamber only through the gas passage and passes through the lower end of the partition wall. Therefore, the measurement chamber is separated from the entrance side space by a partition wall, and the water surface in the measurement chamber does not ripple. When the amount of steam leakage increases, steam also flows into the measurement chamber from the lower end of the partition wall, but in this case, since the amount of steam leakage is large, there is little effect on accuracy.

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 is less likely to 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 FIGS. 1 and 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 partition wall 22 and a partition wall 24 are provided from the top of the liquid reservoir chamber. A liquid storage chamber is formed by the partition wall 22 and the partition wall 24.
Entrance side space 12 and measurement chamber 1 communicating with inlet 18
4. Divided into outlet chamber 16 communicating with outlet 20.
The inlet side space 12 and the measurement chamber 14 communicate with each other through a gas passage passage 37 opened below and in the partition wall 24, and the measurement chamber 14 and the outlet chamber 16 communicate with each other through a gap 26 formed at the lower part of the partition wall 22.

The lower end of the partition wall 24 and the upper end of the opening 26 formed on the partition wall 22 are located below the opening positions of the inlet 18 and the outlet 20. The gas passage passage 37 opened in the partition wall 24 is located above the water level at the time of maximum liquid flow.

A plurality of electrodes 36a, 36b, . The mounting member 28 is made of an insulating material and is attached to the casing 10 with a fixing member 30. Therefore, the electrodes 36a, 36b...36
n allows the water level in the measurement chamber 16 to be measured. A calculation display device (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 pipe 26 is provided on the electrodes 36a, 36b...36n.
Connect.

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 leaked will pass through the passageway 26,
At the outlet 20, 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 cross-sectional view of a steam trap steam leak amount measuring device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line -- in FIG. . 10: Casing, 12: Inlet side space, 14:
Measurement chamber, 16: Exit chamber, 18: Inlet, 20: Exit, 22: Partition wall, 24: Partition wall, 26: Seki, 2
8: Mounting member, 36a, 36b...36n: Electrode,
37: Passage for gas passage.

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 fluid 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 the outlet. The partition wall is divided into two exit chambers, an opening is formed below the entrance and exit opening positions of the partition wall to communicate the entrance chamber and the exit chamber, and a partition wall is provided in the entrance chamber that extends below the entrance opening position. and dividing the inlet chamber into an inlet side space and a measurement chamber, forming a passage for gas passage in a portion of the partition wall above the water level at the time of maximum liquid flow, and providing means for measuring the water level in the measurement chamber; A steam leakage measuring device for a steam trap equipped with a means for calculating and displaying a steam leakage amount from a correlation between a water level value detected by a water level measuring means and an amount of gas passing through an opening formed in a partition wall.