JPS5969018A - Apparatus for cleaning pipeline - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pipe cleaning device for cleaning dirt and the like adhering to the pipe.

For example, when an endoscope is used, not only its outer surface but also the suction, air and water supply, forceps channels, etc. become contaminated, so when cleaning the endoscope after use, K is the outer surface. In addition, the pipes mentioned above must also be cleaned.

Conventionally, in an endoscope cleaning device, a cleaning liquid is sprayed onto the outer surface of the endoscope using two liquid pumps, and is also supplied into a conduit, thereby cleaning both at the same time. However, simply flowing the cleaning liquid into the pipes using a liquid feed pump cannot reliably wash away dirt and other substances that are strongly adhered to the inner surface of the pipes, and not only does it not provide a sufficient cleaning effect. Since the cleaning must be carried out over a long period of time, there is a problem that the workability is poor and the cleaning liquid is consumed between the rows.

Therefore, in order to make it possible to clean the inside of the above-mentioned pipes in a short period of time, a patent application filed in 1983-38, although unpublished, was made.
As shown in No. 292, it has been considered to flow a gas-liquid two-phase fluid, which is a mixture of cleaning liquid and compressed air, through the pipe. When a gas-liquid two-phase fluid is allowed to flow through the pipe, the boundary between the liquid phase and the gas phase exerts a large crushing force on the inner surface of the pipe, thereby increasing the cleaning effect.

In order to flow a gas-liquid two-phase fluid into the pipe line of the endoscope, an air supply pump 0 and a liquid supply pump are connected to a mixing section, and the compressed air and cleaning liquid are mixed in this mixing section. A gas-liquid two-phase fluid is used, and a plurality of connection ports provided in this mixing section are connected to respective pipe lines. However, if the compressed air and cleaning liquid are simply mixed in a mixing section and flowed out from multiple connection ports, the gas and liquid flowing out from each connection port (
The mixing ratio of the liquid phase and gas phase of the eye fluid is not equal. Therefore, a problem arises in that the cleaning effects of the respective pipes connected to each connection port differ, leading to a decrease in cleaning efficiency.

This invention was made based on the above-mentioned custom (C), and its purpose is to supply a gas-liquid two-phase fluid with an equal mixing ratio of liquid phase and gas phase from a plurality of connection ports provided in a mixing section. It is an object of the present invention to provide a conduit cleaning device capable of uniformly cleaning a plurality of conduits by allowing water to flow out.

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

In the figure, 1 is the main body of the cleaning device. Inside this main body 1, there is a liquid pump f2 and an air supply pump, J? 7'37 is provided.

The suction side of the liquid pump 2 is connected to a tank (not shown) containing cleaning liquid, and the discharge side is branched into two, one of which is connected to a nozzle 4 provided in the main body 1, and the other is connected to a first nozzle 4. It is connected via a check valve 5 to a first inlet body 7 provided in a mixing header 6, which is a mixing section configured to be described later.

Also, the month of sending air? The suction side of the pump 03 is connected to the atmosphere, and the discharge side is connected to a second inlet body 9 provided in the mixing header 6 via a second check valve 8.

The mixing ladder 6 is constructed as shown in FIGS. 2 and 3. That is, the header main body 10 has a cylindrical shape with both end faces closed, and a first mounting hole 11a and a second mounting hole 11b forming an inlet are formed at the center of both end faces, and the center of the header main body 10 is closed. 10 axis. That is, the first mounting hole 11a and the second mounting hole 1
It is opposite to 1b. The 21N■ replacement tag 11g is provided with the first inlet body 7, and the second attachment hole 11b is provided with the second inlet body 9. These inlet bodies 7.9 include a fitting 14 consisting of a large-diameter portion 12 with one end open and a small-diameter portion 13 with a mid-view shape;
and a first connection cap 15 screwed onto the large diameter portion 12 of the inlet body 7"16 to close the opening. Each inlet body 7, 9 has a fitting 1.t. , 14
The small diameter portions 1.9 and 13 of the header body 10 are fitted into the respective mounting holes 11a and Ilb so as to protrude by the same size Δ. Above 2! A first connecting pipe 17 that communicates with the discharge (11!l) of the liquid feeding pump 'Nia' 2 is connected to the connecting cap 15 of the inlet body 7 of the pipe 1, and the second inlet body 9
A second connecting pipe 18 communicating with the discharge side of the air pump 3 is connected to the connecting cap 15 of the air pump 3 .

In addition, four third mounting holes 19 serving as connection ports are bored in the peripheral wall of the header body 10 at equal intervals of 90 degrees in the circumferential direction and at the center position in the axial direction of the header body 10. has been done. Each @3 replacement tag 19... has a second connection cap 20... whose end surface is connected to the inner surface of the header body 10.
It has been worn for 1■χ. Therefore, the tip surface of the second connection cap 20... is the same as the first one. Sugar 2 inlet body 7
, 9 are located at equal distances from the tip surfaces of the small diameter portions Z3.13.

In addition, the above 1. The second check valves 5 and 8 are provided in the large diameter portions 12 of the fittings 140 of the first and second inlet bodies 7 and 9, respectively.

A second connection cap 20 provided on the header main body 10.
... has an air supply tube 23 which is the conduit 22 of the endoscope 21.
．． Liquid feeding tube 24. Suction tube 25? and the forceps channel 26 are connected by connecting tubes 27, respectively.

That is, among the conduit 22 of the endoscope 2, the air supply tube 23. The liquid feeding tube 24 and the suction tube 25 are connected to a switching operation valve 30 which is removed by housing a valve body (not shown) in a syringe 29 in the operating section 28 of the endoscope 21, so that the valve body can be removed from the syringe 29. Remove the cylinder 2
A connection tube 27 is connected to 9.

In addition, a third connection socket 31 is provided on the peripheral wall of the header body 1o of the mixing header 6 in addition to the second connection socket 20. This third connection cap JJi, inhalation (1
j11 is connected to the discharge side of a liquid feeding pump (both not shown) which communicates with the chemical liquid tank. 1. Therefore, a medicinal solution can also flow through the conduit 22 of the endoscope 21.

In this configuration, when cleaning the pipe line 22 of the endoscope 2I with gas/liquid 2A [1 fluid], the liquid supply pump 02 and the air supply pump 3 are operated to mix the cleaning liquid and compressed air into the header. Send it to 6. Then, the cleaning liquid and compressed air mix in the header body 10 to become a gas-liquid two-phase fluid, and a plurality of second
The water flows from the connection caps 20 .

Incidentally, the tip surfaces of the plurality of second connection caps 20 that open into the header body 10 are the same as the tips of the first inflow eyes 7 that feed the cleaning liquid into the header body 10. They are located at equal distances from the front end surface of the second inflow eye body 9 that sends compressed air, which opens into the header body IO. Therefore, a gas-liquid two-phase fluid having the same mixing ratio of cleaning liquid and compressed air flows from the connection caps 20 of the container box 2, so that the second connection caps 20... The conduits 22 of the connected endoscopes 21 are cleaned in the same state at the same time.

As described above, the present invention provides a cleaning device equipped with a mixing section that creates a gas-liquid two-phase fluid and causes the gas-liquid two-phase fluid to flow through a plurality of conduit ports, respectively. An inlet for cleaning liquid and an inlet for compressed air were provided to face each other, and the plurality of connection ports were provided at equal distances from these inlets. Therefore, from each connection port, the mixing ratio of liquid phase and gas phase is equal to 1. Since the gas-liquid two-phase fluid flows out, the pipes connected to each connection port can be cleaned in the same state in the same amount of time. That is,
It is possible to equalize the cleaning effect and improve cleaning efficiency.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a schematic diagram of the overall configuration, Fig. 2 is a sectional view of the mixing section, and Fig. 3 is Fig. 2 I.
It is a sectional view taken along the line II-III. 2...Liquid pump, 3...Air pump 0.6...
Mixing header (mixing section), II a + 1 l b-
・・il 2nd mounting hole (inflow port), 19... 3rd
Mounting hole (connection port), 22...pipe line. 0 Representatives Patent Attorney Suzue Takehiko 91 Figure 1 Figure 2

Claims (1)

[Claims] The cleaning liquid from the liquid pump and the compressed air from the air pump are mixed in a mixing section to form a gas-liquid two-phase fluid, and this gas-liquid two-phase fluid is connected to the plurality of connection ports provided in the mixing section. In the cleaning device for cleaning pipes, the mixing section is provided with an inlet for cleaning liquid and an inlet for compressed air facing each other, and the plurality of connection ports are connected to each of the inlets. A pipe cleaning device, characterized in that the pipe cleaning device is provided at equal distances from each other.