CN2303261Y

CN2303261Y - Tower like device for cleaning and removing scale from tube

Info

Publication number: CN2303261Y
Application number: CN 97219868
Authority: CN
Inventors: 蔡国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-07-15
Filing date: 1997-07-15
Publication date: 1999-01-06
Anticipated expiration: 2007-07-15

Abstract

The utility model relates to a tower type cleaner for descaling in a pipe, particularly an apparatus for cleaning dirt which is arranged in a pipe of a condenser of a large firepower motor. The utility model is formed by the process that scraping pieces are connected in series with a piston type cleaner through stud bolts and nuts. The utility model is characterized in that the scraping pieces form a hexagonal column, the upper end of the scraping pieces is big, the lower end of the scraping pieces is small, both sides of the scraping pieces are provided with scraping sheets, and the middle part of the scraping pieces is provided with a middle bore. The utility model can realize one-time accomplishment of pushing and scraping the dirt and cleaning the pipe. The utility model overcomes the defects of complicated structure or inconvenient dirt cleaning, etc. of the prior art, and the utility model has the advantages of simple structure, convenient operation, high safety, economy, good effect on descaling, etc.

Description

The tower cleaner of scale removal in the novel pipe

The utility model relates to the disposal facility of dirt in the generator condenser tube.

Condenser is one of main heat exchanger in thermal power plant, and the height of condenser rate of heat exchange directly influence the efficient of generating electricity, and the height of condenser rate of heat exchange depends primarily on the cleaning height of condenser tube inwall.

The method of cleaning dirt in the condenser tube at present has:

1. high-pressure spray water washer ablution, this method is pulverized with 20～30MPa high pressure water impact, takes out stains, descale effect is general, but because hydraulic pressure is too high, operating personnel are careless slightly in operations such as flexible pipe insertion, centering, switch high-pressure water, very easily have an accident.

2. chemical pickling method: this method is more thorough to dirt removal, but tube wall is easily produced corrosion.

3. tower cleaner method, this method can be removed the dirt of inside pipe wall preferably, and it is without pickling, and with finishing dirt than low water pressure once, this cleaner is scraped part, joint pin and sweeper serial connection by three～five joints and is formed.And each joint is scraped the complex structure of part, and scraping blade, hole clipping, ear, Spring Card, projection etc. are arranged, and causes making difficulty, the cost height, (seeing China Patent No. 94221830.2), and to scrape part be that metal material is made, and copper pipe had the scratch of certain trace.

The purpose of this utility model can once be finished dirt and cleans up providing a kind of, to tube wall not easy damaged and can satisfy the condenser tube inwall scale removal of different size and novel pipe simple in structure in the tower cleaner of scale removal.

The technical solution of the utility model is as follows: the utility model comprises scrapes part 3, piston type sweeper 6, it is characterized in that scraping the part exterior cross-section and be the regular hexagon cylinder, respectively there is a scraping blade 4 centre of scraping part two sides, this scraping blade with scrape the part body and fuse, scrape the part body and be provided with mesopore 9, bolt 1 inserts from the piston type sweeper back side, passes and uses nut 2 fastening after several scrape the part mesopore.The rear end elastic sheet of piston type sweeper coincide with the inside pipe wall that is cleaned, and a small amount of residue dirt that scraping blade removes behind the dirt is cooperated with water by it, can once clean dirt in the pipe totally.

Advantage:

1. can reduce hydraulic pressure and just cleaner can be promoted to advance with the speed of one meter of per second to 1.2MPa, have the fast characteristics of cleaning speed.

2. strike off dirt and totally once finish, can obviously improve cleaning speed with cleaning.

3. scraping blade is to strengthen nylon to make and have elasticity, tube wall is difficult for producing damaging action, even pipe under the situation of little distortion, also can clean scrubbing.

4. can adopt the scraping blade of different size and scrape part to cooperate, can satisfy the different user needs with the condenser tube of different size.

5. the more important thing is that the structure of scraping part simplifies in a large number, it only is the simple part that is installed with a hole in a positive hexagonal cylinder that has two scraping blades.Method of attachment is also simple in addition, only is connected in series with conventional bolts and nuts and tightens, so cost can reduce greatly.

Accompanying drawing indicates:

Fig. 1 is the overall structure schematic diagram of the utility model novel tower-type cleaner.

Fig. 2 is the front view that a joint of tower cleaner is scraped part.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is the left view of Fig. 2.

Be described further with reference to the accompanying drawings below:

Fig. 1 shows that the utility model comprises that three save the tower cleaner of scale removal in the novel pipe of scraping part, it is identical that every joint is scraped part 3 structures, scrapes the part profile and be honest dihedral cylinder, and upper end diameter is big, lower end diameter is little by 5, a rubber-like scraping blade 4 is respectively established in the centre of corresponding two sides, this scraping blade with scrape the part body and fuse, scraping blade has inclination slightly to the sweeper direction, scrape part body central longitudinal to establishing hole 9, can be for the usefulness of bolt series connection, each upper end of scraping part is dug and is established hex nut hole 8, nut placement during for serial connection.Each little hexagon 5 in lower end of scraping part inserts next scraping in the six-sided nut hole, upper end 8 of part, penetrates from the sweeper back side with bolt 1 then, scrapes the part mesopore through each, tightens with nut 2 to going up most a upper end of scraping part.

One scrapes between the scraping blade of part and the scraping blade that another part is scraped part and establishes angle, and all angle sums should satisfy greater than 360 ° of angle requirements, and its effect is that the whole circumference of condenser tube inwall all can be scraped by scraping blade.

A tower cleaner can comprise that 2-5 saves (individual) and scrapes part.

Fig. 2～4 show that further one saves the structural representation of scraping part.

The end face of piston type sweeper 6 is circular flats, in establish the hole, can penetrate for bolt, the outward-dipping elastic sheet in circumference bottom smoothly coincide with the inside pipe wall that is cleaned, and thin slice has elastic reaction, is provided with breach 7 on the thin slice again, cannelure is established along one week of thin slice in the back side, the effect of piston type sweeper has three: accepts waterpower for one cleaner pushed forward, and the 2nd, reduce friction and lubricate, the 3rd, all cleaning is clean with scraping surplus dirt.

Using method: tower cleaner is filled in the condenser tube, under hydraulic pressure 1.2MPa effect, promoted cleaner, reach the purpose of scraping dirt approximately with 1 meter per second speed straight ahead at the uniform velocity.

Tower cleaner is except being used for common generator, the special condenser tube cleaning that adapts to large power plant, the dirt that also is fit to water dirt in the Pipe Cutting simultaneously and forms, this utility model is on probation through 300MW and other specification unit, and scrubbing is effective, after unit puts into operation, delivery temperature descends, vacuum rises, can be multiple electric, and energy-saving effect is fairly obvious.

Claims

1. the tower cleaner of scale removal in the novel pipe, comprise and scrape part (3), piston type sweeper (6), it is characterized in that the exterior cross-section of scraping part (3) is the regular hexagon cylinder, scrape the centre of part two sides and respectively establish a scraping blade (4), this scraping blade is to be connected one with scraping the body body, scrape the part body and establish mesopore (9), bolt (1) inserts from the piston type sweeper back side, passes and uses nut (2) fastening after several scrape the part mesopore.

2. by the tower cleaner of scale removal in the described novel pipe of claim 1, the regular hexagon cylinder upper end diameter that it is characterized in that scraping part is big, lower end diameter is little (5), this small end can insert next joint and scrape in the upper end nut bore (8) of part, and a cleaner can be established 2～5 joints and scrape part.

3. by the tower cleaner of scale removal in the claim 1,2 described novel pipes, it is characterized in that scraping between the scraping blade (4) of part and the scraping blade (4) that another scrapes part for one and establish angle, and all angle sums should satisfy greater than 360 ° of angle requirements.