CN210373528U

CN210373528U - Sealing structure of boiler membrane type wall

Info

Publication number: CN210373528U
Application number: CN201921193310.4U
Authority: CN
Inventors: 刘亮; 马险峰; 庄宇刚
Original assignee: GUANGZHOU GUANGZHONG ENTERPRISE GROUP CORP
Current assignee: GUANGZHOU GUANGZHONG ENTERPRISE GROUP CORP
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-21
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a seal structure of boiler diaphragm type wall, relate to the mechanical engineering field, the outer wall to closing plate and diaphragm type wall is difficult to sealed smooth problem, the following technical scheme is provided, a seal structure of boiler diaphragm type wall, including first diaphragm type wall and second diaphragm type wall, the outer wall of first diaphragm type wall is equipped with the closing plate, the outer wall of second diaphragm type wall is equipped with the connecting plate, closing plate and connecting plate fixed connection, the outer wall fixedly connected with comb plate of first diaphragm type wall, open on the surface of comb plate has the arc wall, the outer wall shape phase-match of arc wall and first diaphragm type wall, the connecting plate is connected with the comb plate, the comb plate is fixed in the surface of first diaphragm type wall, reach the purpose that improves the sealed effect of boiler.

Description

Sealing structure of boiler membrane type wall

Technical Field

The utility model relates to the field of mechanical engineering, more specifically say, it relates to a seal structure of boiler diaphragm type wall.

Background

The membrane type water-cooled wall is a water-cooled wall formed by welding flat steel and tubes in a splicing manner and an airtight tube panel, most of the existing boilers adopt a membrane type water-cooled wall structure, and the membrane type water-cooled wall structure has the advantages of saving steel and furnace wall materials (the thickness of a heat insulation material is thin, a fireproof material is not needed), reducing the weight of the boiler, being good in sealing performance, not easy to slag and the like, and is widely applied. In actual design and application, due to the existence of the positions such as a flame folding angle and a water-cooling furnace arch, the connection between the water-cooling walls at the positions and other water-cooling walls has an angle, the sealing difficulty is high, and once the sealing is not good, the air leakage of the boiler is increased, and the operation and the efficiency of the boiler are influenced.

Chinese patent with application number CN201220381056.2 discloses a membrane wall sealing chock, which comprises an inverted L-shaped steel plate, wherein a connecting steel plate is arranged on the right side of the inverted L-shaped steel plate, and the inverted L-shaped steel plate, the connecting steel plate and the membrane wall are welded on the same plane, so that the membrane wall of the boiler is sealed, and the air leakage rate of a boiler furnace and related parts is reduced.

Although the membrane wall sealing plug block can play a role in sealing the boiler membrane wall to a certain extent, due to the structural limitation, the inverted-L-shaped steel plate and the outer wall of the membrane wall are difficult to seal flatly, and the situation that the boiler is not tightly sealed easily occurs.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a seal structure of boiler diaphragm type wall has the advantage that improves sealing performance.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a seal structure of boiler diaphragm wall, includes first diaphragm wall and second diaphragm wall, the outer wall of first diaphragm wall is equipped with the closing plate, the outer wall of second diaphragm wall is equipped with the connecting plate, the closing plate with connecting plate fixed connection, the outer wall fixedly connected with comb plate of first diaphragm wall, open on the surface of comb plate has the arc wall, the arc wall with the outer wall shape phase-match of first diaphragm wall, the connecting plate with the comb plate is connected, the comb plate is fixed in the surface of first diaphragm wall.

By adopting the technical scheme, the second membrane wall is fixedly connected with the surface of the outer wall of the first membrane wall through the sealing plate and the connecting plate, the direct contact area of the first membrane wall and the outer wall of the second membrane wall is small in the connection process, if the conditions such as dislocation and the like occur in an installation site, the length of the sealing plate in the horizontal direction is insufficient, the length of the sealing plate in the horizontal direction can be directly prolonged on the sealing plate through welding or other fixed connection modes, the construction operation on the outer wall of the first membrane wall is reduced, and therefore the damage to the outer wall of the first membrane wall is reduced; because the bottom of the connecting plate is connected with the comb-shaped plate, compared with the common strip plate, the arc-shaped groove of the comb-shaped plate is matched with the shape of the outer wall of the first membrane wall, so that the comb-shaped plate and the outer wall of the first membrane wall are sealed and smooth, and the boiler is sealed more tightly.

Preferably, the surface of the comb-shaped plate is provided with a connecting hole, the connecting plate is integrally connected with a clamping plate above the connecting plate in the vertical direction, the clamping plate penetrates through the surface of the comb-shaped plate through the connecting hole, the surface of the clamping plate is provided with a through hole, and a limiting rod for limiting the clamping plate to be separated from the connecting hole is arranged in the through hole in a penetrating manner.

By adopting the technical scheme, the connecting holes play a role in positioning the connection between the comb-shaped plate and the sealing plate, so that the situation of installation dislocation during field installation is reduced; when the clamping plate generates a relative movement trend in the connecting hole, the inner wall of the connecting hole in the horizontal direction limits the horizontal movement of the clamping plate, and the friction force between the inner wall of the connecting hole and the clamping plate in the vertical direction limits the vertical movement of the clamping plate, so that the clamping plate is prevented from being separated from the connecting hole, and the connection stability of the comb plate and the sealing plate is improved; the limiting rod penetrates through the through hole in the side wall of the clamping plate to limit the clamping plate to fall off from the connecting hole, and connection between the comb-shaped plate and the connecting plate is enhanced.

Preferably, the comb-shaped plate is provided with a reinforcing plate on the upper surface in the vertical direction, and the reinforcing plate is arranged between the through hole and the comb-shaped plate.

Adopt above-mentioned technical scheme, when the cardboard takes place the removal trend of horizontal direction in the connecting hole, reinforcing plate and connecting plate all with the outer surface contact of cardboard, the reinforcing plate has increased the area of contact of cardboard side surface periphery, reduces the local atress of cardboard side surface, plays the guard action to the cardboard.

Preferably, the through hole is in threaded connection with the limiting rod.

By adopting the technical scheme, the limiting rod is connected with the inner wall of the through hole in a threaded manner, and the limiting rod and the through hole can be installed and detached by rotating the limiting rod, so that the detachable connection of the comb-shaped plate and the sealing plate is realized, and the operation is simple.

Preferably, the connecting hole is formed between two adjacent arc-shaped grooves.

By adopting the technical scheme, the operable area between two adjacent arc-shaped grooves is larger, and the influence of the through holes arranged on the surface of the comb-shaped plate on the overall stability of the comb-shaped plate is reduced.

To sum up, the utility model discloses following beneficial effect has:

1. through the matching connection of the comb-shaped plate and the outer wall of the first membrane wall, the structural limitation of the surface of the first membrane wall is reduced, and the sealing stability is improved;

2. the reinforcing plate and the connecting hole jointly reinforce the connection between the clamping plate and the comb-shaped plate, so that the connection between the sealing plate and the comb-shaped plate is more stable;

3. the gag lever post restriction gusset plate on the one hand drops from the cardboard surface, on the one hand can realize dismantling the installation fast through the threaded connection with the through-hole, easy operation.

Drawings

Fig. 1 is a schematic structural view of a sealing structure of a membrane wall of a boiler according to the present invention.

Fig. 2 is a schematic cross-sectional view of a membrane wall of a boiler according to the present invention.

Fig. 3 is a schematic view of the structure of the comb plate.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the film type heat exchanger comprises a first film type wall 1, a second film type wall 2, a sealing plate 3, a connecting plate 4, a comb-shaped plate 5, an arc-shaped groove 6, a connecting hole 7, a clamping plate 8, a reinforcing plate 9 and a through hole 10.

A sealing structure of a boiler membrane wall comprises a first membrane wall 1 and a second membrane wall 2, wherein the first membrane wall 1 is arranged along the vertical direction, a sealing plate 3 is connected to the surface of the first membrane wall 1, and the sealing plate 3 is tightly attached to the surface of the first membrane wall 1 and is arranged in parallel with the first membrane wall 1, as shown in figures 1 and 2.

As shown in fig. 3, a comb plate 5 is arranged on the surface of the first diaphragm wall 1, the first diaphragm wall 1 is perpendicular to the comb plate 5, and an arc-shaped groove 6 matched with the surface of the first diaphragm wall 1 is formed on the surface of the comb plate 5. The surface of the second membrane wall 2 is connected with a connecting plate 4, the connecting plate 4 is perpendicular to the second membrane wall 2, and the connecting plate 4 is fixedly connected with the sealing plate 3.

As shown in fig. 4, be equipped with connecting hole 7 between two adjacent arc walls 6 in surface of comb plate 5, closing plate 3 has cardboard 8 at the top an organic whole of vertical direction, cardboard 8 runs through in the upper surface of 5 vertical directions of comb plate through connecting hole 7, the side surface of cardboard 8 is opened along the horizontal direction has through-hole 10, set up the thread groove along its length direction in the through-hole 10, be equipped with the gag lever post in the through-hole 10, the gag lever post surface is equipped with the thread protrusion that matches with the thread groove, the warp of gag lever post runs through and outstanding in the surface of cardboard 8 with the threaded connection of through-hole 10. The cardboard 8 runs through the lateral wall of comb plate 5 and is equipped with reinforcing plate 9 along its periphery cover, and reinforcing plate 9 sets up between comb plate 5 and gag lever post.

When the installation, after 6 and the 1 outer wall matching of first diaphragm type wall of arc wall with comb plate 5, weld comb plate 5 in the outer wall surface of diaphragm type wall, cardboard 8 aligns and runs through in connecting hole 7 with connecting hole 7, locate 8 outer walls of cardboard with reinforcing plate 9 covers, it makes gag lever post and through-hole 10 threaded connection to rotate the gag lever post, it is more firm to weld closing plate 3 and first diaphragm type wall 1 with closing plate 3 and the welding of first diaphragm type wall 1, will weld in closing plate 3's surface with connecting plate 4 that second diaphragm type wall 2 is connected, thereby realize that second diaphragm type wall 2 installs in 1 surface of first diaphragm type wall.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a seal structure of boiler membrane wall, includes first membrane wall and second membrane wall, the outer wall of first membrane wall is equipped with the closing plate, the outer wall of second membrane wall is equipped with the connecting plate, the closing plate with connecting plate fixed connection, its characterized in that: the outer wall of the first membrane wall is fixedly connected with a comb plate, an arc-shaped groove is formed in the surface of the comb plate, the arc-shaped groove is matched with the outer wall of the first membrane wall in shape, the connecting plate is connected with the comb plate, and the comb plate is fixed on the surface of the first membrane wall.

2. A sealing arrangement for a membrane wall of a boiler as claimed in claim 1, wherein: the comb-shaped plate is characterized in that a connecting hole is formed in the surface of the comb-shaped plate, a clamping plate is integrally connected to the upper portion of the connecting plate in the vertical direction, the clamping plate penetrates through the surface of the comb-shaped plate through the connecting hole, a through hole is formed in the surface of the clamping plate, and a limiting rod for limiting the clamping plate to be separated from the connecting hole penetrates through the through hole.

3. A sealing arrangement for a membrane wall of a boiler as claimed in claim 2, wherein: the upper surface of the comb-shaped plate in the vertical direction is provided with a reinforcing plate, and the reinforcing plate is arranged between the through hole and the comb-shaped plate.

4. A sealing arrangement for a membrane wall of a boiler as claimed in claim 2, wherein: the through hole is in threaded connection with the limiting rod.

5. A sealing arrangement for a membrane wall of a boiler as claimed in claim 2, wherein: the connecting hole is arranged between two adjacent arc-shaped grooves.