DE2143679C3 - Device for inserting tubes into tube sheets or tube supporting walls, in particular heat exchangers - Google Patents

Description

the cone base diameter (d _a ) . 15 that the sliders get caught on the support wall

2. Apparatus according to claim 1, characterized and falling out, it is further advantageous if the indicates that the cone base diameter (d _a ) cone base diameter is slightly smaller than the slightly smaller than the outer diameter of the outer diameter of the pipe.

Pipe (6) is. Furthermore, the conical head can at least

3. Device according to claim 1 or 2, so that a hole for inserting the drawing tool through marked that the lie in the tube (6).

end (S) of the slider (1) conically based on a schematic drawing are beveled is. construction and mode of operation of an exemplary embodiment

4. Device according to one of claims 1 explained in more detail according to the invention.

to 3, characterized in that the conical 25 The made of elastic plastic and

Mige head (3) on the outside at least one hollow sliding piece 1 consists of a zy-

Bore (7) for inserting a drawing tool, cylindrical neck 2, the outer diameter of which d _t dem

having. Corresponds to the inner diameter of the tube 6, in the

this slider is to be used. At the front

30 end of the neck 2 of the slider 1 is an attached

approaches a conical head 3, the conical base diameter d _{a of} which corresponds to the outer diameter of the tube 6.

When assembling condensers and other condensers, the sliding piece 1 can normally be pushed so far into the heat exchangers of a pipe 6 until the collar 4 has a large number - up to several 10,000 - of the crude protruding base of the cone 3 the leading edge ren through the corresponding tube sheet and that of the tube 6 rests firmly. But it is also possible to introduce condenser retaining walls. In particular, the base cone diameter d "is slightly smaller than in the case of very long apparatuses, in particular, so that the pipe diameter can be made with a considerable amount of work, since the pipes need to be withdrawn with one hand and individual partition walls or pipe sheets Avoid falling out of the sliding pieces to ver-assembly personnel in each case by the corre- sponding. For easier insertion of the slider 1 corresponding openings must be made. In the tube 6 it is useful if the lower end 5 of the neck piece 2 is known to insert slightly conically beveled sliding pieces, which are usually conically tapering 45, into the tube ends.

are trained. This facilitates the introduction of the sliding piece made of elastic

Pnhre much easier. The previously known shem plastic and its hollow design can

Sliders are made of metal or wood and the neck is easily collapsed when inserted into the tube.

- Because of their only slight deformation - are pressed relatively amount, so that the slider then firmly

difficult to insert into the tubes because it rests there for 50 in the tube and during the threading of the

the insertion process must be tight. Also that pipes cannot fall out.

It is generally only possible to remove the pipe with a larger length. With shorter pipes of just a few meters Exertion of force and using a special length, the sliding pieces can after threading the tools possible. For this purpose, for example, the pipes have to be shot out by compressed air alone known sliding pieces made of metal at two points, for example in a close-meshed net and pulled out with special pliers. With longer pipes, the construction takes time will. the required compressed air pressure in the pipes depending on the invention is therefore based on the object, but relatively long, so that it is useful here A device for inserting pipes into pipe can be the sliding pieces with a simple work floor or to remove pipe support walls, especially from warts. This is done on the outside of the Metauschern, to create, which minende from a conical head 3 in the tube near the tip at least one bore 7, which can be used and taper in an approximately conical manner, is provided into which one Slider exist. These sliding pieces should each hook can be used so that the but shaped in this way and thus easily withdrawn from such a Ma slide piece 1 again in terms of value be made so that they can be used easily on the one hand. Thus, the sliders can then are bar and removable, and on the other hand one can be reused several times.

1 sheet of drawings

Claims (1)

Safe and easy introduction of the pipes enabled patent claims: borrowed. This task is performed with a device of the 1. Device for inserting pipes in the type treated initially solved in that the from Tube sheet or tube support walls, in particular made of elastic plastic and hollow out Heat exchangers, consisting of a sliding piece led into the, from a cylindrical, into the Tube end insertable and approximately conical Tube end insertable neck with an attached, tapered slider, characterized by an approximately conical head with a dem shows that the outer diameter of the pipe is made of elastic plastic and hollow sliding piece (1) io gel base diameter. It is purposeful a cylindrical one, uniformly into the pipe end (6), if the end of the slide-settable end located in the pipe Neck (2) is tapered conically with an attached piece. approximates the conical head (3) with an order of magnitude in the event of incorrect threading and thus Outer diameter of the pipe (6) to prevent necessary retraction of the pipes,