JPH11201397A - Steam leakage quantity and discharged condensate quantity measuring device for disc type steam trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of accurately measuring a steam leakage quantity and a discharged condensate quantity of a disc type steam trap. SOLUTION: A steam leakage quantity and discharaged condensate quantity measuring device for a steam trap is provided with a probe 1 with a built-in vibration detecting means and a device main body 2 processing a detected vibration signal from the probe 1. The device main body 2 is provided with a CPU 6 and a storage unit 7. The storage unit 7 stores relation between an operation cycle of the disc type steam trap and a steam leakage quantity and relation between an operation cycle and a discharged condensate quantity. As to the relation between an operation cycle and a steam leakage quantity, the steam leakage quantity is reduced lower as an operation time becomes longer, and the steam leakage quantity is increased higher as an operation frequency is increased higher. As to the relation between an operation cycle and a discharged condensate quantity, the discharged condensate quantity is increased higher as an operation time becomes longer, and the discharged condensate quantity is reduced lower as an operation frequency is increased higher. The CPU 6 detects an operation cycle of the disc type steam trap from the fed vibration signal so as to compute a steam leakage quantity and a discharged condensate quantity from the detected operation cycle and the relations between an operate cycle and a steam leakage quantity and between an operation cycle and a discharged condensate quantity previously stored in the storage unit 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the amount of steam leakage and the amount of discharged condensate of a disk type steam trap which is attached to a steam transport pipe or a steam-using device and automatically discharges condensate without leaking steam. In particular, disc type
The present invention relates to a device for measuring the amount of steam leakage and the amount of discharged condensate from the operation cycle of a gas trap.

[0002]

2. Description of the Related Art If the valve closing function of a steam trap is reduced and steam is leaked, expensive energy is wasted, and the operation state of the steam trap has conventionally been confirmed. Therefore, various devices for that purpose have been developed. One of them is disclosed in Japanese Utility Model Publication No. 7-012800. The device for measuring the amount of steam leakage of the disk type steam trap shown here detects the vibration intensity and the number of times of operation of the on / off valve of the disk type steam trap and operates when the number of times of operation is more than a predetermined number. The amount of steam leakage is calculated from the intensity of vibration.

[0003]

SUMMARY OF THE INVENTION In the above prior art,
There was a problem that the amount of steam leakage of the disk type steam trap could not be measured accurately. That is, the disk type
This is because the steam trap closes when the steam flows at a high speed on the lower surface of the valve disk, so that the steam leaks even when the on-off valve is normally operated.

In addition, if the amount of condensate discharged from the disk type steam trap can be measured, the amount of steam consumed by the steam-using device can be determined, and data for improving the heating efficiency of the steam-using device can be obtained. Accurately measuring this is extremely important for thermal management. However,
In the above-mentioned conventional one, the amount of discharged condensate could not be measured.

Accordingly, an object of the present invention is to provide an apparatus capable of accurately measuring the amount of steam leakage and the amount of condensate discharged from a disk type steam trap.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned technical problems, the apparatus for measuring the amount of steam leakage and the amount of condensate discharged from a disk type steam trap according to the present invention is provided by a disk type steam trap.
Operating cycle detecting means for detecting the operating cycle of the steam trap, storage means for storing in advance the relationship between the operating cycle of the disk type steam trap and the amount of steam leakage and the relationship between the operating cycle and the amount of discharged condensate, and the detected operating cycle Calculating means for calculating the amount of steam leakage from the relationship between the stored operation cycle and the amount of steam leakage, and calculating the amount of discharged condensate from the relationship between the detected operation cycle and the stored operation cycle and the amount of discharged condensate And characterized in that:

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The operating cycle of a disk-type steam trap, that is, the operating time of an opening, closing, or opening / closing valve, or the number of times of opening, closing, or opening / closing a valve in a predetermined time, and steam leakage The amount has a correlation, and the longer the operation time, the smaller the steam leakage amount, and the larger the number of times of operation, the larger the steam leakage amount.

There is a correlation between the operation cycle of the disk type steam trap and the amount of condensed water discharged. The longer the operation time, the larger the amount of condensed water discharged, and the more the number of operations, the smaller the amount of condensed water discharged.

Therefore, by storing in advance the relationship between the operation cycle of the disk type steam trap and the amount of steam leakage and the relationship between the operation cycle and the amount of discharged condensate, the accurate amount of steam leakage and discharge can be calculated from the detected operation cycle. The amount of condensate can be calculated.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 to 3). FIG. 1 is a block diagram showing a schematic configuration of a device for measuring the amount of steam leakage and the amount of condensate discharged from a disk-type steam trap according to the present invention. The vibration detection means detects the vibration of a disk-type steam trap (not shown). And a device main body 2 for processing a vibration signal detected by the probe 1.

The apparatus main body 2 amplifies the detected vibration signal supplied from the probe 1 via the dedicated cable 3 by the signal amplifier 4 and digitizes the amplified signal by the A / D converter 5. Is input to the CPU 6.

The CPU 6 processes the vibration signal input from the A / D converter 5 in accordance with the processing program stored in the storage unit 7, thereby determining the amount of steam leakage and the amount of condensate discharged from the disk type steam trap. calculate. Then, the calculation result is displayed on the display unit 8.

The storage unit 7 stores a processing program, the relationship between the operation cycle of the on-off valve of the disk type steam trap as shown in FIG. 2 and the amount of steam leakage, for example, as shown in FIG. The relationship between the operation cycle of the on-off valve of the disk type steam trap and the amount of discharged condensate is stored. In FIG. 2, the vertical axis represents the amount of steam leakage, and the horizontal axis represents the operation cycle of the on-off valve, that is, the operation time or the number of operations. In FIG. 3, the vertical axis represents the operation cycle of the on-off valve, that is, the operation time or the number of operations.
The horizontal axis is the amount of discharged condensate.

As shown in FIG. 2, the operating cycle and the amount of steam leakage of the on-off valve of the disk type steam trap are such that the longer the operating time, the smaller the amount of steam leakage, and the greater the number of operations, the greater the amount of steam leakage. Have a relationship. Similarly, the operation cycle of valve opening or valve closing and the amount of steam leakage are related such that the longer the operation time, the smaller the amount of steam leakage, and the more the number of operations, the larger the amount of steam leakage.

[0015] As shown in FIG.
The operation cycle of the open / close valve of the trap and the discharge condensate amount are such that the longer the operation time is, the larger the discharge condensate amount is, and the more the number of times of operation is, the smaller the discharge condensate amount is. Similarly, the operating cycle of valve opening or closing and the condensate discharge
There is a relationship in which the longer the operation time is, the larger the discharged condensate amount is, and the larger the number of operations is, the smaller the discharged condensate amount is.

Next, the operation of the CPU 6 will be described. The probe 1 is pressed against the disk-type steam trap or a pipe near the disk-type trap, and the vibration accompanying the opening / closing operation of the disk-type steam trap is detected. The detected vibration signal is transmitted through the signal amplifier 4 and the A / D converter 5 to C
It is supplied to PU6.

The CPU 6 detects the operating cycle of the on / off valve of the disk type steam trap and the number of times of on / off operation of the on / off valve in a predetermined time from the supplied vibration signal.
The amount of steam leakage is calculated from the detected operation cycle and the relationship between the operation cycle of the disk-type steam trap and the amount of steam leakage stored in the storage unit 7 in advance, and the discharge recovery is determined from the relationship between the operation cycle and the amount of discharged condensate. Calculate the amount of water,
The calculated steam leakage amount and discharged condensate amount are displayed on the display unit 8.

Probe 1 and CPU in the above embodiment
Reference numeral 6 corresponds to the operation cycle detecting means described in the claims. The storage unit 7 corresponds to a storage unit described in the claims. Further, the CPU 6 corresponds to the calculating means described in the claims.

In the above embodiment, a probe having a built-in vibration detecting means has been exemplified as the operating cycle detecting means. However, instead of the vibration detecting means, for example, means for detecting sound or ultrasonic waves may be used, or pressure may be used. Detecting means or flow rate detecting means may be used. Further, these detecting means may be incorporated in a disk type steam trap or a pipe in the vicinity thereof.

[0020]

As described above, the apparatus for measuring the amount of steam leakage and the amount of condensate discharged from a disk-type steam trap according to the present invention is as follows.
Detects the operation cycle of the disk type steam trap,
By calculating the amount of steam leakage and discharge condensate from the relationship between the detected operation cycle and the previously stored operation cycle of the disk-type steam trap and the amount of steam leakage, and the relationship between the operation cycle and the amount of discharge condensate, accurate calculation is possible. An excellent effect of being able to calculate a large amount of steam leakage and a discharged condensate is produced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a device for measuring a steam leakage amount and a discharge condensate amount of a disk type steam trap according to the present invention.

FIG. 2 is a diagram showing a relationship between an operation cycle and a steam leak amount stored in advance in the steam leak amount and discharge condensate amount measuring device of the disk type steam trap according to the present invention.

FIG. 3 is a diagram showing the relationship between the operation cycle and the discharge condensate amount stored in advance in the steam leak amount and discharge condensate amount measurement device of the disk type steam trap according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Probe (vibration detection means) 2 Device main body 4 Signal amplifier 5 A / D converter 6 CPU 7 Storage unit 8 Display unit

Claims (1)

[Claims] An operation cycle detecting means for detecting an operation cycle of a disk type steam trap, and a relation between an operation cycle of the disk type steam trap and a steam leakage amount and a relation between an operation cycle and a discharge condensate amount are stored in advance. A storage means for storing, and calculating the amount of steam leakage from the relationship between the detected operation cycle and the stored operation cycle and the amount of steam leakage, and the relationship between the detected operation cycle and the stored operation cycle and the amount of discharged condensate. Calculating means for calculating the amount of discharged condensate from the steam trap and the amount of discharged condensate of the disk type steam trap.