JPH0239720B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a cleaning body counting device for cleaning pipes such as a tubular heat exchanger, and particularly to a cleaning body counting device for cleaning pipes such as a tubular heat exchanger, and in particular, the device as a whole can be made smaller, flattened, vibration resistant, and highly airtight. The present invention relates to a cleaning body counting device for pipe cleaning, which is suitable for high-speed cleaning and high accuracy.

[Background of the invention]

FIG. 1 shows a conventional cleaning body counting device.

The conventional cleaning body counting device shown in this figure includes funnel-shaped head plates 2, 2' connected to the ends of pipes 1, 1' to be cleaned, and a tube plate 3 connected to each head plate 2, 2'. .
A tube 5 for counting cleaning bodies attached to the body 3', a set of a transmitter 6 and a receiver 7 fastened to the outer periphery of the tube 5 by a band 8, and a set of a transmitter 6 and a receiver 7 attached to the body 4 and connected to the transmitter 6. A terminal 9 is connected to a receiver 7. The transmitter 6 uses a wave transmitter, a light transmitter, etc., and correspondingly, the receiver 7 uses a wave receiver, a light receiver, etc.
A sponge ball or the like is used as the cleaning body 10 for cleaning the pipes 1, 1'.

In this cleaning body counting device, the cleaning body 10 that has exited the pipe 1 flows together with the fluid from the inside of the head plate 2 → the pipe 5 for counting cleaning bodies → the inside of the head plate 2′ → the pipe 1′. The cleaning body 10 passing through the tube 5 is detected and counted by a transmitter 6 and a receiver 7.

However, in the conventional cleaning body counting device, the transmitter 6 and the receiver 7 are attached to the outer periphery of the cleaning body counting tube 5 by tightening a band, so when the tube 5 vibrates, the transmitter 6 and There is a drawback that the receiver 7 may be misaligned, resulting in erroneous measurements. Furthermore, if the tube 5 is of a type that requires a plurality of tubes, as shown in FIG. Furthermore, there is an inconvenience in that the mounting position of the cleaning body counting device is restricted. Furthermore, when the airtightness between the tube plates 3, 3' and the tubes 5 deteriorates, fluid enters the body 4, corroding the transmitter 6 and receiver 7, and causing electrical leakage. Further, during long-term use, foreign matter such as dust may enter the body 4, contaminating the transmitter 6 and receiver 7, resulting in a decrease in accuracy.

[Purpose of the invention]

An object of the present invention is to eliminate the drawbacks of the prior art described above, and to provide a cleaning body counting device for pipe cleaning that is small, flat, has high vibration resistance and airtightness, and is capable of counting with high accuracy.

[Summary of the invention]

The present invention is characterized in that a cleaning body counting hole is formed in a flat cleaning body counting body, and that a cleaning body detection sensor is embedded in the cleaning body counting body with one end facing the counting hole. With this configuration, all of the above objectives can be achieved.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a plan view of the first embodiment of the present invention, and FIG.
The figure is a sectional view taken along the line -- in FIG. 2.

In the first embodiment shown in these figures, a counting hole 12 for the cleaning body 10 is formed in a cleaning body counting body 11.

The cleaning body counting body 11 is made of a material such as synthetic resin or metal and has a shape that is a combination of a square part and a semicircular part when viewed from above, and has a step for assembling a terminal at one end of the square part. A portion 11' is formed.

The counting hole 12 of the cleaning body 10 is formed to have a diameter slightly larger than the diameter of the cleaning body 10, as can be seen from FIG.

In this embodiment, a pair of cleaning body detection sensors having a transmitter 13 and a receiver 14 are embedded in the cleaning body counting main body 11 together with their lead wires 15 . The transmitter 13 uses a wave transmitter or a light transmitter, and the receiver 14 uses the transmitter 13.
A wave receiver or optical receiver is used depending on the situation. Further, the transmitter 13 and the receiver 14 are arranged to face each other on an extension line of the diameter of the counting hole 12 of the cleaning body 10, and are provided facing the counting hole 12. Furthermore, the transmitter 13, the receiver 14, and their lead wires 15 are manufactured integrally with the cleaning body counting body 11 in this embodiment. Further, the transmitter 13 and the receiver 14 are connected to the stepped portion 1 of the cleaning body counting body 11 via the lead wire 15.
1'.

The cleaning body counting body 11 has a mounting hole 17.
is provided.

The cleaning body counting device of the first embodiment is used and operates as follows.

That is, the cleaning body counting body 11 is interposed between flanges 19 and 19' provided at the ends of the pipes 18 and 18' to be cleaned, and is attached by bolts 20 through attachment holes 17.

The cleaning body 10 flows together with the fluid from the pipe 18 to the counting hole 12 to the pipe 18' as shown in FIG.
It is counted by a cleaning body detection sensor having a receiver 14 and a receiver 14.

During this use, even if vibrations are transmitted to the transmitter 13, receiver 14, and lead wire 15 through the pipes 18, 18' and the cleaning body counting body 11, the transmitter 13, receiver 14, and lead wire 15 may Since it is manufactured integrally with the cleaning body counting body 11, the relative positions of the transmitter 13 and the receiver 14 do not deviate, so that accurate counting is possible at all times, and there is no trouble caused by cutting the lead wire 15. can also be prevented.

Further, since the transmitter 13 and the receiver 14 are completely airtight, it is possible to prevent performance deterioration or failure due to intrusion of fluid or adhesion of foreign matter such as dust.

Furthermore, since the entire device is small and flat, there are almost no restrictions on installation.

Next, FIG. 4 is a plan view of a second embodiment of the present invention.

In this second embodiment, six counting holes 12 are formed at appropriate intervals, and each counting hole 12
A set of a transmitter 13 and a receiver 14 and a terminal 16 are provided in correspondence with each other, and each set of transmitter 13 and receiver 14 is connected to the terminal 16 via a lead wire 15.

The second embodiment is similar to the first embodiment except that the cleaning body (not shown in FIG. 4) can be constantly counted through the plurality of counting holes 12.

In addition, in both the first and second embodiments, the cleaning object detection sensor is not limited to one consisting of a transmitter 13 and a receiver 14 shown in the drawings, but may also be one that can be counted by itself, such as an ultrasonic contactor. Of course it can be used.

〔Effect of the invention〕

According to the present invention described above, a cleaning body counting hole is formed in a flat cleaning body counting body, and a cleaning body detection sensor is mounted on the cleaning body counting body with one end facing the counting hole. Since it is buried, the entire device can be made small and flat, which has the effect of eliminating restrictions on installation.

Further, according to the present invention, since the cleaning object detection sensor is embedded in the cleaning object counting body, it has high vibration resistance, and can be used even in applications where vibrations are transmitted to the cleaning object detection sensor. In addition to being effective in preventing troubles such as misalignment, it is also highly airtight, and therefore has the effect of preventing functional deterioration of the cleaning object detection sensor due to intrusion of fluids and adhesion of dust, etc. Together, these functions have the effect of improving counting accuracy.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing a conventional cleaning body counting device, and FIGS. 2 and 3 show a first embodiment of the present invention, of which FIG. 2 is a plan view and FIG. FIG. 2 is a cross-sectional view taken along the - line in FIG. 2, and FIG. 4 is a plan view showing a second embodiment of the present invention. 10...Cleaning body, 11...Cleaning body counting body, 1
2... Counting hole of the cleaning body, 13... Transmitter constituting the cleaning body detection sensor, 14... Receiver of the same, 1
5... Lead wire, 16... Terminal, 18, 18'...
…Pipes that need to be cleaned.

Claims (1)

[Claims] 1. A cleaning body counting hole is formed in a flat cleaning body counting body, and a cleaning body detection sensor is embedded in the cleaning body counting body with one end facing the counting hole. A cleaning body counting device for cleaning pipes, which is characterized by: 2. A pipe cleaning device according to claim 1, characterized in that a plurality of cleaning body counting holes are formed in the cleaning body counting body, and a cleaning body detection sensor is provided corresponding to each counting hole. Cleaning body counting device. 3. A cleaning body counting device for pipe cleaning according to claim 1 or 2, characterized in that the cleaning body counting body and the cleaning body detection sensor are integrally molded.