Cleaning apparatus and cleaning method for cleaning split-type butterfly valves

Abstract

The present invention provides a cleaning device that can efficiently clean the sealing member provided on the valve body of a split-type butterfly valve. [Solution] The split-type butterfly valve 10 comprises a disc-shaped first valve body 11 that is rotatably mounted on the openings 1a and 1b of the container 1 and opens and closes the openings 1a and 1b of the container 1; a disc-shaped second valve body 12 that is movable toward and toward the first valve body 11 and can rotate integrally with the first valve body 11 when in contact with the first valve body 11; and an annular sealing member 13 that seals the space between the first valve body 11 and the second valve body 12 when the first valve body 11 and the second valve body 12 are in contact. The cleaning device 100 for cleaning the split-type butterfly valve 10 comprises a first nozzle 21 that sprays cleaning fluid from the outside of the container 1 toward the sealing member 13 when the first valve body 11 is rotated by a predetermined amount from the closed position in the opposite direction to the rotation direction that normally opens the first valve body 11.

Claims

1. A disc-shaped first valve body is rotatably mounted in the opening of the container and opens and closes the opening of the container, A disc-shaped second valve body that is movable toward and away from the first valve body and can rotate integrally with the first valve body when in contact with it, A cleaning device for cleaning a split-type butterfly valve, comprising: an annular sealing member provided along the outer edge of the first valve body, which seals the space between the first valve body and the second valve body when the first valve body and the second valve body come into contact; The container is equipped with a first nozzle capable of spraying cleaning fluid from the outside toward the sealing member, A cleaning device characterized in that the first nozzle is configured to eject the cleaning fluid toward the sealing member when the first valve body is rotated by a predetermined amount in the opposite direction to the normal rotation direction when the first valve body is opened from the closed position.

2. A cleaning apparatus according to claim 1, A cleaning device further comprising a second nozzle that ejects cleaning fluid from the outside of the container toward the sealing member when the first valve body is in the open position.

3. A cleaning apparatus according to claim 1, A cleaning device further comprising a third nozzle that is inserted into the container when the first valve body is in the open position, and which cleans the inside of the container and the surface of the first valve body.

4. A cleaning device for cleaning a split-type butterfly valve comprising: a disc-shaped first valve body rotatably mounted in the opening of a container and opening and closing the opening of the container; a disc-shaped second valve body that is movable toward and away from the first valve body and rotatable integrally with the first valve body when in contact with the first valve body; and an annular sealing member provided along the outer edge of the first valve body and sealing the space between the first valve body and the second valve body when the first valve body and the second valve body are in contact, wherein the cleaning device comprises a first nozzle that ejects cleaning fluid from the outside of the container toward the sealing member when the first valve body is rotated by a predetermined amount from the closed position in the opposite direction to the normal rotation direction for opening the first valve body, the cleaning device comprising: With the first valve body and the second valve body in contact, the first valve body is rotated by a predetermined amount in the opposite direction to the normal rotation direction for opening the valve from the closed position. The process involves rotating the first valve body by a predetermined amount in the direction opposite to the rotational direction that opens the valve, and then separating the second valve body from the first valve body. A cleaning method comprising the step of spraying a cleaning fluid from the first nozzle toward the sealing member.

5. A cleaning method according to claim 4, A cleaning method comprising the step of spraying a cleaning fluid from the first nozzle, wherein the first nozzle is reciprocated in the axial direction of the opening while the cleaning fluid is sprayed.

6. A cleaning method according to claim 4, The process of rotating the first valve body and the second valve body to the open valve position while they are in contact, A cleaning method further comprising the steps of rotating the first valve body to the open valve position, and then spraying a cleaning fluid from a second nozzle toward the sealing member.

7. A cleaning method according to claim 4, A cleaning method further comprising the step of rotating the butterfly valve to the open position while the first valve body and the second valve body are in contact, and then returning it to the closed position, before starting the cleaning of the butterfly valve.

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