JPS585308B2 - High pressure steamer sealing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealing device for pressure-sealing a fiber outlet and an inlet of a high-pressure steamer used for high-pressure moist heat treatment of textiles.

High-pressure steamers for treating textile products at high temperature and high pressure by applying high-temperature, high-pressure saturated steam to the textile products are already known. The present inventor has been conducting research over a long period of time regarding a sealing device for introducing or leading out of the steamer, and has filed numerous applications regarding the sealing device.

The latest sealing device of this type that has already been developed is
In a sealing device having a pair of seal rubber rolls that are pressed against each other, the inside and outside of the steamer are connected to the pressure-receiving surfaces of both seal rubber rolls inside the can, and at a position as close as possible to the pressure-welded portion of the pair of seal rubber rolls. There is a sealing device for a high-pressure steamer in which a sealing plate is pressed against the sealing device, and the present invention develops a more effective sealing device for a high-pressure steamer based on this sealing device.

That is, the present invention provides a pair of seal rubber rolls that are installed at one side opening of a through hole provided at the fabric introduction and outlet of a high-pressure steamer, close the opening, and are pressed against each other, and a steamer of the seal rubber roll. a sealing plate that is pressed against the internal pressure receiving surface and close to the pair of sealing rubber roll press-contact parts, and that connects the inside and outside of the steamer; A cylindrical duct with an opening at the other end that approaches the pressure contact portion of the pair of seal rubber rolls, and a high pressure air supply port for blowing pressurized air between the cylindrical duct and the through hole. A steamer sealing device is provided.

Therefore, according to the present invention, since the air introduced from the pressure air supply port is jetted from the outside of the cylindrical duct toward the pressure contact portion of the seal rubber roll, the seal plate is pressed against the seal rubber roll by the pressure of the air. Furthermore, since the pressurized air flows into the cylindrical duct against the pressure within the steamer, the pressure within the steamer is effectively maintained (sealed).

The present invention will be explained in detail below based on embodiments shown in the drawings.

Embodiment 1 In FIG. 1, 1 is a high-pressure steamer can, and a seal block 4 is supported at the fabric inlet 2 of the high-pressure steamer can 1 via a seal backing 3. A through hole 5 is formed.

Reference numerals 6 and 6' denote a pair of seal rubber rolls that are rotatably supported above the seal block 4 and are pressed against each other.
6' closes the upper opening of the through hole 5.

Further, the lower side parts of a pair of curved elastic seal plates 7, 7' are fixed to the upper opening edge of the through hole 5 of the seal block 4 via a stopper 10, and the upper side of the seal plates 7 and 7' The parts are elastically pressed against the sealing rubber rolls 6 and 6'.

Although the material of the seal plates 7, 7' is not particularly limited, in this embodiment they are made of stainless steel plates.

8 is a cylindrical duct located inside the through hole 5, and a fabric is inserted into the inside of this cylindrical duct 8 so as to hang therein.
Further, a gas passage 9 is formed between the outer peripheral surface of the cylindrical duct 8 and the inner surface of the through hole 5 for passing pressurized gas.

Furthermore, the upper end opening of this cylindrical duct 8 is extended to the vicinity of the pressure contact part of the pair of seal rubber rolls, and the cylindrical duct 8
The lower end opening is fixed to the inner side of the fabric inlet 2 via the collar 11.

12 is an air supply port for supplying pressurized air into the gas passage 9; 13 is a vacuum exhaust port provided at the lower end of the cylindrical duct 8; 14 is a seal rubber roll 6, 6' and seal plates 7, 7'. An end seal plate 15 is a drain prevention plate that is pressed against the end face of the drain plate.

The present embodiment has the above configuration, and its operation will be described next.

The fabric 16 is introduced into the steamer can 1 through the pressure contact part of the seal rubber roll and the inside of the cylindrical duct 8. At that time, pressurized air with a pressure higher than the pressure inside the steamer can is introduced into the gas passage 9 from the air supply port 12. When supplied, the pressure of this pressure air acts on the inner surface of the seal plates 7.7', bringing the seal plates 7 and 7' into pressure contact with the sealing rubber roll, and furthermore, the air acting on the seal plates 7.7' As the steamer flows downward from the upper opening of the cylindrical duct 8 as shown by the arrow against the pressure inside the steamer can, the pressure inside the steamer can rises through the cylindrical duct and leaks from the gap between the seal rubber rolls. A perfect sealing effect can be obtained.

Also, part of the pressure gas that presses the seal plates 7, 7' against the seal rubber roll 6.6' is applied to the gaps a', b formed between the seal plates 7, 7' and the seal rubber roll 6.6'.
Since the pressure gas acts in the gap, the pressure contact force between the seal plate and the seal rubber roll is slightly relaxed and the rotation of the seal rubber roll is smoothed.

The above embodiment is the gist of the present invention.Next, an embodiment using the apparatus according to the first embodiment will be described. ) will be described as A.

Embodiment 2 In FIG. 2, in this embodiment, a cylindrical fabric passage 16 located in the steamer can body 1 and formed in a 5-shape side passage is extended below the sealing device A. A liquid storage tank 17 is formed in the lower part of the cylindrical fabric passage 16, and furthermore, at the outlet side opening of the cylindrical fabric passage 16, there are 0 and 2 liquids through which only the fabric passes.
A pair of gap rolls 18 maintaining a gap of ~2 mm,
and a seal plate 20 interposed between the gap roll and the frame 19 and pressed against both gap rolls, and the seal plate 20 and an end face seal plate 21 pressed against the end face of the gap roll 18. We are prepared.

Therefore, according to this embodiment, the gap roll, the seal plate,
Due to the action of the end face seal plate, the internal pressure inside the steamer can 1 is not easily applied to the cylindrical fabric passage, and the pressure inside the cylindrical fabric passage is lower than the pressure inside the steamer can, so that the sealing by the sealing device A is done more effectively.

Embodiment 3 In FIG. 3, in this embodiment, the 5-shaped cylindrical fabric passage according to the second embodiment is replaced with a rectangular box 22, and inside the box 22 there are a gap roll 18 and a seal similar to those in the second embodiment. A sealing mechanism combining a plate 20 and an end sealing plate 21 is installed, and a water tank frame 23 is sewn close to the seal rubber roll 6, 6', and the seal rubber roll is constantly cleaned with a brush roll 24. This is an embodiment in which cooling is performed.

[Brief explanation of the drawing]

The drawings all show the actual flow side of the sealing device according to the present invention, FIG. 1 is a sectional view showing the basic structure of the present invention, FIG. 2 is a sectional view of the second embodiment, and FIG. 3 is a sectional view of the third embodiment. FIG. 3 is an example cross-sectional view. 1...Steamer can body, 2...Fabric inlet, 3...Seal banking, 4...Seal block, 5...Through hole, 6,
6'... Seal rubber roll, 7,7'... Elastic seal plate, 8... Cylindrical duct, 9... Gas passage, 10... Stopper, 11... Tsuba, 12... Tool supply port, 13 ...Decompression exhaust port, 14...End seal plate, 15...Drain prevention plate,
16...Fabric passage, 17, 11'...Liquid reservoir, 18...
Gap roll, 19...Frame, 20...Seal plate, 2
1... End seal plate, 22... Box, 23... Aquarium frame, 24... Brush roll, 25... Squeezing roll, 26
……weight.

Claims (1)

[Claims] 1 A pair of seal rubber rolls are installed at one side opening of a through hole provided at the fabric introduction and outlet of the high pressure steamer, close the opening, and are pressed against each other, and a pressure receiving surface of the steamer internal pressure of the seal rubber roll. , the seal plate is pressed at a position close to the seal rubber roll pressure contact portion of the pair and connects the inside and outside of the steamer, and the seal plate is located within the through hole,
The opening at one end communicates with the inside of the steamer, and the opening at the other end is for blowing pressurized air between a cylindrical duct that approaches the pressure contact portion of the pair of sealing rubber rolls, and the cylindrical duct and the through hole. A sealing device for a high-pressure steamer characterized by having a pressure air supply port.