Abrasion-proof roof pipe of waste heat boiler

Abstract

The utility model relates to an anti-abrasion roof pipe of a waste heat boiler. The anti-abrasion roof pipe comprises pipelines arranged at intervals. The fins are used for connecting two adjacent pipelines; the anchoring parts are fixedly connected to the fins; the net rack is fixedly arranged on the anchoring part; the anti-abrasion layer is fixedly connected to the net rack and is connected with the fins through anchoring parts; the expansion gaps are formed in the edge of the anti-abrasion layer, the framework is formed by the expansion gaps and the net frame through anchoring parts, then the anti-abrasion layer is poured on the framework, and the pipeline is prevented from being directly scoured by high-temperature flue gas and dust particles, so that it is guaranteed that the pipe wall of the pipeline is not scoured and thinned by external force, and long-period safe operation of the roof pipe is guaranteed; deformation and damage of other parts caused by thermal expansion of the anti-abrasion layer are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceiling pipe anti-abrasion technical field, concretely relates to a waste heat boiler anti-abrasion ceiling pipe. BACKGROUND

[0002] Waste heat boiler refers to the waste heat boiler that uses the waste heat in various industrial processes, waste gas, waste or waste liquid and the flue gas produced after the combustion of combustible substances to heat water to a certain temperature.

[0003] Ceiling pipe as a part of furnace wall directly contacts with high-temperature flue gas, is long-termly washed by the flue gas flow of horizontal flue from three flues during use, and due to the influence of factors such as load fluctuation, boiler ash deposition and thermal deviation, the water-cooled wall at this place has the risks of over-temperature corrosion, abrasion thinning, pipe explosion and the like. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a waste heat boiler anti-abrasion ceiling pipe.

[0005] The utility model discloses a waste heat boiler anti-abrasion ceiling pipe, which comprises spacedly arranged pipelines, fins for connecting two adjacent pipelines, anchor members fixedly connected to the fins, net racks fixedly arranged on the anchor members, anti-abrasion layers fixed on the net racks and connected to the fins through the anchor members, and expansion joints arranged at the edges of the anti-abrasion layers.

[0006] Preferably, the anchor members have a V-shaped structure.

[0007] Preferably, the bottom of the V-shaped structure is provided with a horizontal section, the two sides of the horizontal section are provided with inclined sections, and the middle of each inclined section is provided with a second horizontal section.

[0008] Preferably, the net racks comprise first supports arranged horizontally and second supports arranged longitudinally, the second supports are fixedly connected to the first supports, and the first supports are fixedly connected to the second horizontal sections.

[0009] Preferably, the top of each inclined section is provided with a bent section.

[0010] Preferably, the end of each inclined section is provided with a partition layer.

[0011] Preferably, the anchor members are evenly distributed on the fins.

[0012] Preferably, the anti-abrasion layers are made of corundum mullite plastic castable.

[0013] The utility model discloses a beneficial effect is: the utility model discloses a skeleton is formed by anchor and net frame, and then the anti-abrasion layer is poured on the skeleton, to avoid the direct scouring of high-temperature flue gas and dust particles to the pipeline, so as to ensure that the pipe wall of the pipeline is not thinned by external force, and the long-period safe operation of the ceiling pipe is ensured, and the anti-abrasion layer is reserved with expansion joints at the edge during pouring, to prevent the anti-abrasion layer from being deformed and damaged due to thermal expansion. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model is further explained by the drawings, but the embodiment in the drawing does not constitute any limitation to the utility model, and other drawings can be obtained according to the following drawings without the premise of creative labor for the ordinary skilled in the art.

[0015] Figure 1 It is a structure schematic view of the anti-abrasion ceiling pipe of the waste heat boiler of the utility model.

[0016] Figure 2 It is another structure schematic view of the anti-abrasion ceiling pipe of the waste heat boiler of the utility model.

[0017] Figure 3 It is an anchor structure schematic view of the anti-abrasion ceiling pipe of the waste heat boiler of the utility model.

[0018] Figure 4 It is Figure 2 It is a local view at A.

[0019] The numbers shown in the drawing represent: 1, pipeline; 2, fin; 3, anchor; 301, first horizontal section; 302, inclined section; 303, second horizontal section; 304, bending section; 4, net frame; 401, first support; 402, second support; 5, anti-abrasion layer; 6, partition layer. DETAILED DESCRIPTION

[0020] It should be noted that if the embodiment of the utility model involves directional indication (such as up, down, left, right, front, back, …), then the directional indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture (such as shown in the drawing), if the specific posture changes, then the directional indication also changes accordingly.

[0021] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by ordinary skilled in the art, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0022] The technical solutions of the present application will be described clearly and completely in combination with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the protection scope of the present application.

[0023] Referring to Figures 1 to 4 As shown in the drawings, the structure of the present application is: a kind of waste heat boiler anti-abrasion ceiling pipe, including the pipeline 1 of interval arrangement;Fin 2, for connecting two adjacent pipe 1;Anchor 3, fixedly connected on fin 2;Net rack 4, fixedly set on anchor 3;Abrasion layer 5, consolidation is in net rack 4 and is connected with fin 2 by anchor 3;Expansion joint, set in the edge of abrasion layer 5, specifically, two adjacent pipe 1 is sealed by welding fin 2 between, anchor 3 is welded on fin 2, the overall shape of anchor 3 is V type structure, then net rack 4 is welded on the upper portion of anchor 3, finally, abrasion layer 5 is cast on fin 2, anchor 3, net rack 4, avoid that pipe 1 is directly washed by high temperature flue gas and dust particle, so as to guarantee that the pipe wall of pipe 1 is not thinned by external force washing, guarantee that ceiling pipe long period safe operation, abrasion layer 5 is reserved 5mm or more expansion joint at edge when casting, prevent abrasion layer 5 from being deformed and damaged due to thermal expansion of other components.

[0024] As Figure 3 As shown in the drawings, the bottom of V type structure is provided with horizontal section, the two sides of horizontal section are provided with inclined section 302, the middle part of inclined section 302 is provided with second horizontal section 303, specifically, the first horizontal section 301 of bottom can increase the welding area with fin 2, the second horizontal section 303 is used for welding net rack 4, so as to improve the firmness of abrasion layer 5.

[0025] As Figure 2 , Figure 4As shown, the net rack 4 includes a first support 401 arranged transversely and a second support 402 arranged longitudinally, the second support 402 is fixedly connected with the first support 401, the first support 401 is fixedly connected with the second horizontal section 303, and specifically, the first support 401 and the second support 402 are used to increase the overall strength of the wear-resistant layer 5 and improve the anti-seismic and anti-cracking performance.

[0026] As shown in the figure, Figure 3 As shown, the top of the inclined section 302 is provided with a bending section 304, and specifically, the bending sections 304 on both sides can firmly hold the wear-resistant layer 5, so that the wear-resistant layer 5 can remain stable when directly washed by high-temperature flue gas and dust particles, and the wear-resistant layer 5 can be effectively prevented from falling off.

[0027] As shown in the figure, Figure 3 As shown, the end of the inclined section 302 is provided with a partition layer 6, and specifically, the partition layer 6 can be a rubber cap, a wound adhesive tape or asphalt, etc., which can be burned at high temperature to form a gap between the anchoring member 3 and the wear-resistant layer 5, so as to avoid damaging the wear-resistant layer 5 when the anchoring member 3 expands due to heat.

[0028] As shown in the figure, Figure 2 As shown, the anchoring members 3 are uniformly distributed on the fins 2, and specifically, the anchoring members 3 are uniformly welded on the fins 2, which is conducive to absorbing the expansion or contraction force of the wear-resistant layer 5 and avoiding cracks in the wear-resistant layer 5.

[0029] Further, the wear-resistant layer 5 is made of corundum mullite plastic, and specifically, the corundum mullite plastic has high heat resistance and abrasion resistance.

[0030] In specific use, two adjacent pipelines 1 are sealed by welding the fins 2, then the anchoring members 3 are welded on the fins 2, then the partition layer 6 is arranged at one end of the anchoring member 3, then the net rack 4 is welded on the upper part of the anchoring member 3, and finally the corundum mullite plastic is poured on the fins 2, the anchoring members 3 and the net rack 4 to form a firm wear-resistant layer 5, so as to avoid the pipeline 1 being directly washed by high-temperature flue gas and dust particles, thereby ensuring that the pipe wall of the pipeline 1 is not thinned by external washing, ensuring long-period safe operation of the ceiling pipe, and the wear-resistant layer 5 is provided with an expansion joint of more than 5mm at the edge during pouring to prevent the wear-resistant layer 5 from expanding due to heat and causing deformation and damage to other components.

[0031] The above describes the present application by means of specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the essence and scope of the present application, and various modifications made by those skilled in the art after reading the specification belong to the scope of the present application.

Claims

1. A wear-resistant roof pipe for a waste heat boiler, characterized in that: Including the spaced pipes (1); Fins (2) are used to connect two adjacent pipes (1). Anchor (3) is fixedly connected to the fin (2); The space frame (4) is fixedly installed on the anchor (3); The wear-resistant layer (5) is fixed on the grid frame (4) and connected to the fin (2) through the anchor (3); An expansion joint is provided at the edge of the wear-resistant layer (5).

2. The wear-resistant roof pipe for a waste heat boiler according to claim 1, characterized in that: The anchor (3) has a V-shaped structure.

3. The wear-resistant roof pipe for a waste heat boiler according to claim 2, characterized in that: The bottom of the V-shaped structure is provided with a first horizontal section (301), the two sides of the first horizontal section (301) are provided with inclined sections (302), and the middle of the inclined section (302) is provided with a second horizontal section (303).

4. The wear-resistant roof pipe for a waste heat boiler according to claim 3, characterized in that: The grid frame (4) includes a first support (401) arranged horizontally and a second support (402) arranged vertically. The second support (402) is fixedly connected to the first support (401), and the first support (401) is fixedly connected to the second horizontal section (303).

5. The wear-resistant roof pipe for a waste heat boiler according to claim 3, characterized in that: The top of the inclined section (302) is provided with a bent section (304).

6. The wear-resistant roof pipe for a waste heat boiler according to claim 3, characterized in that: The inclined section (302) has a partition (6) at its end.

7. The wear-resistant roof pipe for a waste heat boiler according to claim 1, characterized in that: The anchors (3) are evenly distributed on the fins (2).

8. The wear-resistant roof pipe for a waste heat boiler according to claim 1, characterized in that: The wear-resistant layer (5) is made of corundum mullite plastic casting.

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