JPH0641996B2 - Floor cleaning / wiping decontamination equipment in nuclear facilities - Google Patents

Description

TECHNICAL FIELD The present invention relates to a floor cleaning / wiping decontamination machine in a nuclear facility.

(Prior Art) In a nuclear power plant or the like, in order to perform a sound and stable operation of the power plant or the like, regular inspection of equipment is carried out. At this time, the floor surface may be contaminated. Decontamination of such contaminated floor surfaces has conventionally relied on manual work.

(Problems to be Solved by the Invention) In view of the above prior art, it is an object of the present invention to provide a cleaning / wiping decontamination machine capable of labor saving and mechanization.

(Solution by the Invention) At the lower part of the machine frame 1, a cleaning roll brush 2 with a water supply nozzle is provided.
And a water absorption part 3 by vacuum suction in the rear part, and a wiping part 4 in the rear part, and a water supply nozzle 10 is provided on the upper part of the machine frame 1.
To the water tank 8 and the storage tank for the contaminated water absorbed by the water absorbing section 3 and the paper feed roll 29 for the wiping paper 27 to the wiping section 4.
Also, in the floor cleaning / wiping decontamination machine in a nuclear facility in which the take-up roll 30 is mounted and can be driven by the drive wheels 5, the water absorbing part 3 is connected to the water absorbing duct 20 by the frame 13
A pair of short rollers 18 provided at the lower portions on both sides of the front part in the traveling direction of the sheet, a sponge 14 configured to limit the amount of compression by the short rollers 18, a non-water-absorbing porous rubber 15 and a squeegee rubber. 16, the wiping unit 4 has a plurality of chambers 26b having curved surface portions 26a for accommodating a plurality of free rollers 24, and a roller box 26 mounted on the machine body via a spring 31. The free roller 24 is pressed and supported from above by the spring 25 in each chamber 26b, and the wiped paper 27 is fed from the upper paper feed roll 29, and the guide rollers 28 provided before and after the roller box 26 The guide rollers 28 are guided by the free rollers 24 between the rollers 28, and are wound by the winding roller 30 provided on the upper portion of the machine frame 1.

(Example) Fig. 1 is a symbol A for cleaning in a nuclear facility according to the present invention.
It is a wipe decontamination machine (hereinafter simply referred to as a decontamination machine). As shown in the figure, the decontamination machine uses a cleaning roll brush 2 at the bottom of a rectangular machine frame 1, a water absorption section 3 for absorbing water on the floor surface after cleaning, and a water absorption section 3. It further includes a wiping unit 4 for wiping off the rear part, and a traveling unit composed of traveling drive wheels 5 and 6 and a handle 7.

The cleaning roll brush 2 is a water tank 8 mounted on the machine frame 1.
From a water supply hose 9 for supplying water from a water supply nozzle 10
Is provided at the front of the brush 2, and the belt 1 is driven by the motor 11.
Driven through 2.

Next, as shown in FIG. 5, the water absorption part 3 is attached to the lower part of the frame body 13.
A sheet of sponge 14, a porous rubber 15, and a squeegee rubber 16 are attached with bolts and nuts 17.
A short roller 18 is rotatably fitted to the lower surface of the frame body 13.

A water absorption duct 20 is attached to the upper part of the frame body 13 at the center through a hood 19, and the water absorption duct is connected to a suction device (not shown) provided on the machine frame 1. The frame 13 is elastically supported by the machine frame via brackets 21 on both sides of the hood 19. That is, the frame 13 is elastically mounted in the vertical direction by the pair of rods 22 and the coil springs 23.

FIG. 6 shows a state at the time of water absorption work, in which the sponge 14 and the porous rubber 15 are pressed by the weight of the machine body and have the same thickness as the diameter of the roller 18.

Next, the wiping unit 4 will be described. The wiping unit 4 has a plurality of chambers 26b having curved surface portions 26a for accommodating the free rollers 24.
And a roller box 26 mounted on the machine body via a spring 31. The free roller 24 is housed in the roller box via an upper spring 25 in each chamber. 27 is a wipe paper (or cloth) fed from an upper paper feed roll 29, guided by guide rollers 28 at the front and rear of the roller box 26, and taken up by a take-up roll 30 provided at the top of the machine frame 1. . The roller box 26 is elastically mounted on the machine frame 1 by a spring like the frame body 13 of the water absorbing portion. The wiping paper 27 can also be driven in the opposite direction.

The wiping paper 27 is fed out from the paper feed roll 29 and wound around the guide roller 28 → the free roller 24 ... → The outer peripheral surface of the guide roller 28 to the take-up roll 30. The paper can be used effectively. Further, the upper portion of each free roller 24 is housed in a roller box 26 via a spring 25, and the wiper paper 27 is constantly wiped.
Since it is pressed downward against the floor by its own weight, even if the floor is uneven, the roller 24 moves up and down and the wiping paper 27
Is designed to follow irregularities and be wiped.

The drive wheel 5 for traveling is located inside the lateral width of the water absorption part 3 so as not to roll in the non-decontamination part.

(Operation) The drive wheel is driven, and the handle 7 moves the required decontamination section. At this time, water is supplied to the cleaning brush 2 at the same time by the water supply nozzle 10. Then, the floor surface is first cleaned by the cleaning brush 2.

The contaminated water is vacuumed by the water absorbing part 3. The sponge 14 and the porous rubber 15 of the water absorbing portion 3 are pressed by the weight of the machine body, but are not pressed further by the rollers 18 and 18, so that the sponge 14 and the porous rubber 15 appropriately absorb the contaminated water and suck it up.

Thus, although the contaminated water is absorbed to a considerable extent by the water absorbing part 3, the floor surface is completely wiped off by the wiping paper 27 in the wiping part 4 and dried. At this time, the free roll easily fits into the unevenness of the floor surface and can completely wipe the floor surface.

(Effect) The cleaning unit, the water absorption unit for contaminated water, and the floor wiping unit were compactly mounted on a single machine frame, and allowed to move freely by power, so extremely efficient and safe removal is possible. It enables dyeing work.

In particular, the wiping part is designed so that the wiping paper is pressed against the lower side of the free roll that can be moved up and down so that it can be rolled up, so that it is possible to easily follow the irregularities on the floor surface and complete decontamination work.

[Brief description of drawings]

 FIG. 1 is a perspective view of a wiping type floor decontamination machine. FIG. 2 is a perspective view of the water absorbing portion. FIG. 3 is a plan view of the water absorbing portion. Fig. 4 is a bottom view of the same. FIG. 5 is a sectional view of the same. FIG. 6 is a cross-sectional view showing the state of the water absorbing portion during water absorption. FIG. 7 is a sectional view of an essential part of the wiping part. FIG. 8 is a bottom view of the roller box. FIG. 9 is a view on arrow IX in FIG. In the figure; 1 ... Machine frame 2 ... Washing roll brush 3 ... Water absorbing part, 4 ... Wiping part 5, 6 ... (for running) drive wheel, 7 ... Handle, 8 ... Water tank, 9 ...... Hose (for water supply) 10 …… Water supply nozzle, 11 …… Motor 12 …… Belt, 13 …… Frame body 14 …… Sponge, 15 …… Porous rubber 16 …… Squeegee rubber, 17 …… Bolt nut 18 ...... (Short) roller, 19 hood 20, water absorption duct, 21 bracket, 22 rod, 23 spring, 24 free roller, 25 spring 26, roller box, 27 Wiping paper 28 …… Guide roller, 29 …… Paper feed roll 30 …… Winding roll

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuo Hara 5-5-12 Ginza, Chuo-ku, Tokyo Incorporated nuclear power agency (72) Inventor Akira Aoyama 5561 Sakura, Hamaoka-cho, Ogasa-gun, Shizuoka Stock company Atomic Power Agency Hamaoka Plant (56) Reference JP 60-63499 (JP, A) Actual development 58-63599 (JP, U) Actual 61-79300 (JP, U)

Claims (1)

[Claims] 1. A cleaning roll brush (2) with a water supply nozzle and a water absorption part (3) by vacuum suction in the rear part of the machine frame (1)
In addition, a wiping part (4) at the rear part is provided, and a water tank (8) to the water supply nozzle (10) and a storage tank for the contaminated water absorbed by the water absorbing part and the wiping part (4) are provided on the upper part of the machine frame (1). Wiping paper for part (4)
In a floor cleaning / wiping decontamination machine in a nuclear facility equipped with a paper feed roll (29) and a take-up roll (30) of (27), which can be driven by a drive wheel (5), the water absorption part (3 ) Is a pair of short rollers (18) provided at the lower portions on both front and front sides in the traveling direction of the frame (13) leading to the water absorption duct (20), and the short rollers (1
8) comprises a sponge (14) configured to limit the amount to be compressed, a non-water-absorbing porous rubber (15) and a squeegee rubber (16), and the wiping part (4) comprises a plurality of free rollers.
A plurality of chambers (26) each having a curved surface portion (26a) for accommodating (24)
b) having a roller box (26) mounted on the machine body via a spring (31), and in the roller box (26), the free roller (24) is elastic through a spring (25). The wiped paper (27) is supported and fed from the paper feed roll (29), and the free rollers (24) between the guide rollers (28) before and after the roller box (26) and these guide rollers (28, 28) are supported. ), The floor cleaning / wiping decontamination machine in a nuclear facility, characterized in that it is wound around a winding roll (30) provided on the upper part of the machine frame (1).