DK167236B1 - INSTALLATION SYSTEM FOR BUILT-IN A CHEESE RUBBER SYSTEM IN A CHEMICAL - Google Patents

Abstract

Application system for installing a flue gas pipe system made of glass, ceramic, high-grade steel or plastic in an existing chimney, characterised by - a lifting and lowering device (1), mountable on top of the chimney head (3), for the flue gas pipes (10> - a holding frame (4) for a first pipe section (29), which is connected via fastening means (6) to the lifting and lowering device (1> - and a stand (13) which can be inserted in the bottom (31) of the chimney and on which the holding frame (4) can be mounted. <IMAGE>

Description

DK 167236 B1

The invention relates to a mounting system for incorporating a glass, ceramic, stainless steel or plastic flue gas pipe system into an existing chimney.

In recent years, an intensified effort 5 has been made to partly increase the efficiency of a boiler and partly to reduce air pollution due to the flue gas.

In order to lower energy consumption, the so-called low-temperature and deep-temperature boilers and the so-called burn-value boilers were developed. However, with the use of these new types of 10 boilers, it has been found that the conventional chimneys are unsuitable due to the increased water and vapor deposits and the greater density requirement.

When the temperature of the chimney falls below the dew point temperature of the water vapor, condensate precipitates which can lead to the formation of runoff.

It has therefore been proposed to install a flue gas pipe system consisting of a material resistant to the condensate by lining the chimney with or in the chimney. Most advantageous are glass tubes, but also ceramic, 20 stainless steel or plastic tubes are built in.

However, the assembly of these flue gas pipes has not so far been satisfactorily resolved.

It is known to weld gaskets on stainless steel tubes and to hang ropes in the gaskets. These pipes are fired down by two people as much as 25 at mountaineering.

It is a disadvantage here that pipes with larger diameters due to their weight can only be placed by several people. After laying down and placing on the already installed pipes, there are difficulties in removing the ropes. The final attachment takes place at the foot of the chimney with extra parts supplied from below.

Several systems with gripper claws are known for mounting ceramic tubes. An immersion bar is used which is passed through the tube and clamped in the tube by friction. The tube 35 is then lowered, and below, the locking clips center the tube over the underneath. The immersion bar is pulled up DK 167236 B1 2 and the next row part is immersed and inserted in the same way.

As the pipe section by pipe section must be submerged, installed in the chimney and centered, the installation is very time consuming.

For example, a mounting system of the kind mentioned in the introduction is known from DE-A-2424654. However, in the embodiment described there, the location of the rope drums and guide rollers is such that a tilt or wedge of the flue gas piping system can be easily submerged. If one uses a hoist according to the second embodiment shown there, which attacks at the upper pipe or stone section, then the insertion work by alternately raising or lowering the flue gas system is very time consuming. In both of the embodiments shown there, the insertion process in the chimney 15 requires several vertical thrusters which must be placed over the total pipe length, whereby the insertion process becomes material and time-consuming. Also, the centering of the submerged system of pipes or mold stones is also inadequate.

It is therefore the object of the present invention to provide a mounting system which avoids the aforesaid disadvantages so that the flue gas system can be easily mounted by only one person, while still being able to dismantle the flue gas system in a simple manner.

This is achieved by the mounting system according to claim 1. Advantageous further developments are given in claims 2-10.

The mounting system according to the invention consists essentially of three components, namely a lifting and lowering mechanism by which the flue gas pipes can be immersed, a holder frame in which the first or lower section is suspended, and a post which stands on the chimney floor or chimney foot, and on which the holder frame can be applied and thus centered.

The lifting and lowering mechanism has a base plate which is not much larger than the cross-sectional area of a conventional house chimney. On this base plate is mounted a frame to which at least one drum is attached, as well as two guide rollers.

- \ DK 167236 B1 3

The drum serves for attaching and unwinding ropes or straps with which the flue gas pipe system is lowered into the chimney through the opening in the baseplate. When only one drum is used, it is constructed so that two ropes can be mounted on and 5 run in parallel on a continuous basis. An additional rope guide is used for this. Preferably, the drum or drums can be operated by hand and have a locking latch.

In order for it to be necessary to operate only one of two drums, possibly with a crank, this 10 drum is coupled to the other drum, which e.g. may occur over suitable drive belts.

Due to its low weight (approx. 20 kg) and small dimensions, the lifting and lowering mechanism can be carried by only one person through any skylight.

The holding frame of the mounting system according to the invention has a base plate and one from this raised holding connected to the frame through two rods. The support frame is designed so that it is possible to clean the narrowest chimney cross sections with the largest possible pipe cross section. Accordingly, the base plate extends so far beyond the pipe cross section that the rods and fasteners of the ropes or straps can be externally passed by the pipe.

The inner diameter of the holder corresponds approximately to the outside diameter of the tube. The first pipe section 25, on its outer side, at a distance from the pipe end, preferably has a circumferential bead or mortar, which can be made by knitting, rolling, casting, embossing, etc.

This first pipe section lies with this bead or mortar on the retaining ring. Preferably, for glass tubes, an O-ring is arranged between the recess or bead and the retaining ring, e.g. of silicone rubber or polytetrafluoroethylene for elastic padding.

Instead of a rebar, a suitable steel pipe holder may also be laid around and attached to the pipe section 35 and abut against the holder ring.

The retaining frame is connected to the ropes or straps DK 167236 B1 4 over tensioning screws which are fixed in the base plate.

On the base plate is a downwardly projecting bolt that can be inserted into the chimney floor. This . post consists of a foot and a pipe piece in the middle, 5 into which the bolt can enter.

The distance between the rods and their placement as well as their length is chosen so that, after the holding frame is mounted on the post, a pipe bend or a tee can be applied through the chimney base to the first 10 pipe section, so that the pipe system connection with the heating chain - can be provided.

The bracket frame is at the same time a mounting bracket and final support for the pipe system in the chimney foot and stays in it. In addition, however, it also allows for later dismantling of the pipe system.

The installation of the flue gas pipe system by means of the mounting system according to the invention is described below.

First, the lifting and lowering mechanism is placed on the chimney head. Then, the holding frame is connected to the two ropes 20 or straps by means of two tensioning screws, which are fixed in the base frame of the holding frame by means of wing nuts. The retaining frame is lowered somewhat into the chimney by operating the drum's crank. By means of the locking latch on the drum, the holding frame is fixed in this position. Then, the first 25 tubing or bead tube section is inserted into the support frame so that the bead rests on the support frame. Optionally place an O-ring between the bead and the holding frame.

Then the retaining frame is lowered further down and fixed again in its new position. A second pipe section is attached to the first, by glass tubing, optionally during the insertion of an elastic gasket, and this second pipe piece is secured by the appropriate pipe holder to the first pipe piece.

The holding frame with the two pipe sections is lowered again somewhat and the next pipe piece is fitted. This is continued, 35 until the support frame reaches the chimney floor, where the post is already inserted through the mounting opening. The retainer frame engages the post, the wing nuts are removed and the tensioning screws are pulled up by winding the ropes or straps on the drum.

Then, a tee or pipe bend 5 is inserted through the mounting opening in the chimney foot. On the apron head the lifting and lowering mechanism is removed, and for fixing the pipe system a cover and fixing element adapted to the diameter of the pipe is fitted. This cover member may be made of plastic, copper, steel plate or aluminum. By means of a suitable spacer between the chimney head and the cover element, a venting of the remaining shaft is achieved rearward. Secure the cover element with chimneys and screws to the chimney head.

If the entire pipe system is to be removed again, the cover element is removed again and the lifting and lowering mechanism is installed on the chimney head. At the chimney foot, the pipe bend or T-piece is removed and the ropes or straps with the tensioning screws are lowered to the holding frame. Here, the retaining screws are fastened again with the nuts to the base frame of the holder frame and the whole system is pulled up where the individual pipe sections can be removed.

The advantage of this mounting system is that the installation and removal of the pipe system can be carried out by a single person.

In the following, some examples of embodiments of the mounting system according to the invention are described in connection with the drawing, in which fig. 1 shows a longitudinal section through a chimney with the mounting system according to the invention.

FIG. 2 is a side view of the holding frame with the first pipe section, FIG. 3 is a cross-section through the holding frame with the first pipe section; FIG. 4 is a longitudinal section through the support frame and the first pipe section with pipe bending applied, as seen along line A-B in FIG. 3, and - FIG. 5 a chimney with a built-in pipe system.

FIG. 1 shows a chimney 15 on which head 3 is mounted with a lifting and lowering mechanism 1. This mechanism 1 consists of. a base plate 27 having in the middle an opening 28 through which a flue gas pipe 10 can be inserted into the chimney 15. On the base plate 27 are attached two guide blades 25 and a frame 26. On this frame 26 are mounted two rope drums 2, which over a drive belt 24 is interconnected such that it is only necessary to rotate one rope drum 2 with a crank 30. In order for the pipes 10 to be able to be held in the chimney 15 in height, there is a blocking latch 11.

The rope 5 is connected to the holding frame 4 by means of tensioning screws 6 which - as shown in FIG. 1 - carries the first pipe section 29 and another pipe section 10. Both pipe sections 15 are connected to a pipe holder 9.

On the chimney floor 31 is a post 13 which has been inserted through the mounting opening 17. On this post, the support frame is mounted with a bolt 12.

The FIG. 1 in dotted lines, which essentially constitutes the holding frame 4, is shown in detail in FIG. 2nd

The support frame 4 consists of a base plate 22, on the underside of which the bolt 12 is placed in the middle. This base plate 22 is connected to the ropes 5 over tensioning screws 6, which are secured with wing nuts 14.

In addition, the base plate 22 carries two rods 23, at the upper end of which is secured a holding 21, on which the upper pipe section 29 lies with its inverted edge 7, which is tensioned. If glass tubes are used, a 30-O-ring 8 is placed between the recess and the retaining ring.

To the first pipe section 29, another pipe section 10 is secured by means of a gasket 9 and a pipe holder 16.

In FIG. 3, the chimney 15 and the holding frame 4 with the pipe pieces 29 and 18 are shown in section. It will be seen that the base plate 22 35 is a metal strip which is only so much longer than the diameter of the pipe that the rods 23 and the tensioning screws 26 can be applied to its ends.

The bracket 4 is positioned relative to the chimney cross-section so that the pull screws 6 and rods 23 are in diagonally opposite corners. With this space-saving arrangement, it is also possible to incorporate pipes with the largest possible diameter in small chimney cross sections. The shown location of the rods 23 also makes it possible to connect a pipe bend 18 to the first pipe section 29.

This pipe arrangement is again shown in section in FIG. 4. Furthermore, it is seen how the bolt 12 engages the post 13.

FIG. 5 shows the entire pipe system built into the chimney 15 with the chimney frame 4 remaining in the chimney and the post 13. At the chimney head 3, the whole pipe system 15 is fixed by means of a cover element 19 and spacers 20, which are attached to the chimney head 3 with dowels.

On the pipe bend 18 is added another pipe piece 10 which leads to the boiler not shown.

20 s

Claims (10)

1. A mounting system for mounting and separating a glass, ceramic, stainless steel or plastic flue gas pipe system into an existing chimney with a chimney head (1) for lifting and lowering mechanism (1) for the flue gas pipes (10) and a support frame (10). 4) connected to the lifting and lowering mechanism (1) via fastening means (6), the lifting and lowering mechanism (1) having a base plate (27) provided with a central opening (28), characterized in that: the base plate (27) is secured by means of a frame (26) to at least one drum (2) for attaching and unwinding ropes or straps (5) and two opposite guide blades (25) so that the retaining frame (4) remaining in the chimney ) is intended to hold a first, lower pipe section (29) and comprises a post (13) insertable into the chimney bottom (31) to which the retaining frame (4) can be releasably mounted. Assembly system according to claim 1, characterized in that the rope drums (2) can be operated by hand. Mounting system according to claim 1, characterized in that the rope drums (2) are connected for rotation in the same direction. Mounting system according to one of Claims 1 to 3, characterized in that the holding frame (4) has a base plate 25 (22), to which are attached two parallel, upwardly extending rods (23) which carry a retaining ring (21) on which the first pipe section (29) lies. Mounting system according to claim 4, characterized in that the first pipe section (29) has a bead or recess (7) which extends on the outside 30, with which the first pipe section (29) rests on the retaining ring (21). Mounting system according to claim 5, characterized in that an O-ring (8) is arranged between the bead (7) and the retaining ring (21). Mounting system according to claim 4, characterized in that a pipe holder is fixed to the first pipe section (29) with which the first pipe section rests on the holding ring (21). Mounting system according to one of claims 4 to 7, characterized in that both the rods (23) and the base plate 5 (27) and the retaining ring (21) are arranged at such distances that a pipe bend (18) or a T-pipe piece can put on the lower end of the first pipe section (29). Mounting system according to one of claims 4-8, characterized in that a bolt (12) is provided on the base plate (22) which engages the post (13). Mounting system according to one of claims 4 to 9, characterized in that the fastening means between the holding frame (4) and the lifting and lowering mechanism (1) are tensioning screws (6) connected to the ropes or straps (5). - \