Composite furnace wall structure of petrochemical waste heat boiler

Abstract

The utility model relates to the technical field of furnace walls, in particular to a composite furnace wall structure of a petrochemical waste heat boiler, which comprises a furnace wall and a heat insulation filling layer, the furnace wall comprises a plurality of furnace wall parts, the furnace wall parts are connected end to end, connecting pieces are connected among the furnace wall parts, gaps exist among the furnace wall parts, and the heat insulation filling layer is arranged between the furnace wall parts. The furnace wall is provided with a gap, the gap is filled with a heat insulation filling layer, the connecting piece penetrates from the hollow position of one furnace wall part to the hollow position of the adjacent furnace wall part and is used for connecting the adjacent furnace wall parts, the interior of the furnace wall is hollow and is used for being filled with a pouring layer, a heat preservation layer is arranged on the inner wall of the furnace wall, and a connecting nail is arranged between the heat preservation layer and the furnace wall and penetrates to the hollow position; the furnace wall is formed by the furnace wall parts, when the furnace wall is installed, the polyurethane foam plate is additionally arranged between the furnace wall parts, and when the gap between the furnace wall parts is reduced, the gap between the furnace wall parts is reduced and the polyurethane foam plate is extruded, so that the gap between the furnace wall parts disappears.

Description

TECHNICAL FIELD

[0001] The utility model relates to a furnace wall technical field, concretely relates to a compound furnace wall structure of petrochemical waste heat boiler. BACKGROUND

[0002] The waste heat boiler is composed of a drum, a movable smoke hood, a furnace mouth section flue, an inclined 1 section flue, an inclined 2 section flue, a last 1 section flue, a last 2 section flue, a feeding pipe (a discharging chute), an oxygen lance, a nitrogen seal device and a nitrogen seal plug, a manhole, a differential pressure taking device, a flue support and a hanger, etc., and the waste heat boiler is divided into six circulation loops, each circulation loop is composed of a downcomer and an upcomer, and each section flue feeds water from the drum to the lower header of each flue and then to each heating surface, steam is generated after water passes through the heating surface and enters the inlet header, and then the upcomer is introduced into the drum, and each flue is connected by a flange.

[0003] The utility model discloses a compound furnace wall structure of petrochemical waste heat boiler module, including fender, fixedly arranged in fender one side face a plurality of grab nail components, thermal insulation cotton layer, thermal insulation pouring material layer, grab nail component penetrates thermal insulation cotton layer and is embedded in thermal insulation pouring material layer, grab nail component includes straight pole section, the first pressure material section of rotation setting in straight pole section one end department and second pressure material section, first pressure material section and second pressure material section with the connecting place of straight pole section is fixedly set up with the shaft sleeve respectively, the shaft sleeve is connected with straight pole section respectively through the pivot, the shaft sleeve still sets up fixedly set up with the knob of stirring, the knob of stirring is located with first pressure material section, second pressure material section respectively on the both sides of the center of corresponding shaft sleeve, the straight pole section on slidingly set up has the knob of stirring of taper, the knob of stirring is fixedly set up with the protection sleeve, and the connecting place of protection sleeve and the knob of stirring is provided with the break mark.

[0004] In the above patent document, the thermal insulation cotton layer and the thermal insulation pouring material layer are connected together through the grab nail assembly, but in actual use, the thermal insulation cotton layer and the thermal insulation pouring material layer are generally modularized assembled, and there is a certain gap between adjacent modules. UTILITY MODEL CONTENTS

[0005] The utility model provides a compound furnace wall structure of petrochemical waste heat boiler, aims at solving the problem that there is a certain gap between the thermal insulation modules in the related technology.

[0006] The utility model discloses a compound furnace wall structure of petrochemical waste heat boiler, including furnace wall and heat insulation filling layer, the furnace wall includes a plurality of furnace wall components, and the head of each furnace wall component is connected with the tail, and the connecting piece is connected between each furnace wall component, and the gap exists between the furnace wall component, and the heat insulation filling layer is filled in the gap, and the connecting piece is from the hollow of one furnace wall component and passes to the hollow of adjacent furnace wall component and is used for connecting adjacent furnace wall component, and the hollow in the furnace wall is used for filling the pouring layer, and the inner wall of furnace wall is equipped with the heat preservation layer, and the connecting nail is arranged between the heat preservation layer and the furnace wall, and the connecting nail penetrates to the hollow.

[0007] The utility model discloses beneficial effect has: after connecting between the furnace wall component, eliminate the gap between the furnace wall component, and through filling the heat insulation cement in the hollow of furnace wall component, fix the connecting nail and the connecting piece, avoid the looseness in the subsequent use process.

[0008] Preferably, the connecting piece is a bolt, the bolt penetrates from the hollow of one furnace wall component to the hollow of another furnace wall component, and when the bolt is tightened, the gap between the furnace wall components is reduced; the furnace wall is connected by the bolt.

[0009] Preferably, the heat insulation filling layer is a polyurethane foam board; the gap between the furnace walls is filled by the polyurethane foam board.

[0010] Preferably, the filling pouring layer is heat insulation cement; the heat insulation cement plays a certain heat insulation role and can fix the connecting piece.

[0011] Preferably, the connecting nail is a high-temperature-resistant steel nail, and the high-temperature-resistant steel nail penetrates from the inner wall of the furnace wall to the hollow; the steel nail fixes the heat preservation layer on the furnace wall.

[0012] Preferably, the heat preservation layer is a ceramic fiber layer; the ceramic fiber layer has stable performance, and the service life of the furnace wall is improved.

[0013] The above technical scheme has the beneficial effects of the utility model:

[0014] 1. The furnace wall is composed of furnace wall components, and the polyurethane foam board is installed between the furnace wall components when the furnace wall is installed. When the gap between the furnace wall components is reduced, the gap between the furnace walls is reduced and the polyurethane foam board is squeezed, so that the gap between the furnace wall components disappears.

[0015] 2. After the ceramic fiber layer is fixed on the furnace wall by the steel nail, the heat insulation cement is filled in the hollow of the furnace wall component. When the cement solidifies, the screw and the steel nail are fixed on the furnace wall. The screw and the steel nail do not shake after being fixed, which further avoids the gap on the furnace wall. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structure schematic view of the utility model.

[0017] Fig. 2 It is a structure schematic view of the utility model.

[0018] Fig. 3 It is a structure schematic view of the utility model.

[0019] Reference Signs: 1, furnace wall;2, connecting piece;3, heat insulation filling layer;4, filling pouring layer;5, heat preservation layer;6, connecting nail. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0021] As Figs. 1-3 shown, a kind of composite furnace wall structure of petrochemical waste heat boiler, including furnace wall 1 and heat insulation filling layer 3, furnace wall 1 includes multiple furnace wall components, and each furnace wall component is connected with connecting piece 2 between each furnace wall component 1, there is gap between furnace wall component, and heat insulation filling layer 3 is filled in gap, connecting piece 2 is from the hollow of one furnace wall component to the hollow of adjacent furnace wall component, for connecting adjacent furnace wall component, hollow in furnace wall is used to fill pouring layer 4, and inner wall of furnace wall 1 is equipped with heat preservation layer 5, and connecting nail 6 is arranged between heat preservation layer and furnace wall, and connecting nail 6 is penetrated to hollow.

[0022] When manufacturing furnace wall 1, multiple furnace wall components are assembled into furnace wall, heat insulation filling layer 3 is filled in gap between multiple furnace wall components, then furnace wall component is connected by connecting piece 2, gap between furnace wall component that is connected disappears, then heat preservation layer 5 is fixed on furnace wall 1 by connecting nail 6, and finally heat insulation filling layer 3 is filled between furnace wall component 1, and connecting piece 2 and connecting nail 6 are fixed on furnace wall when heat insulation filling layer 3 solidifies, to avoid connecting piece 2 and connecting nail 6 from falling off, and after the installation of furnace wall is completed, no gap will appear between furnace wall component.

[0023] Connecting piece 2 is bolt, and bolt is penetrated to the hollow of another furnace wall component from the hollow of one furnace wall component, and when bolt is tightened, the gap between furnace wall component is reduced;When installing furnace wall, screw is penetrated furnace wall component, and correspondingly, through hole for bolt penetration is set on furnace wall component, and the gap between furnace wall component is reduced by transmission screw.

[0024] The heat insulation filling layer 3 is a polyurethane foam board; when the furnace wall components are assembled, the polyurethane foam board is arranged between the gaps, the furnace wall components are close to each other when the adjacent furnace wall components are connected by screws, and the furnace wall is connected, and the gaps between the furnace wall components are extruded and disappear after the connection is completed.

[0025] The filling pouring layer 4 is heat insulation cement; the heat insulation cement is filled in the hollow of the furnace wall, the heat insulation effect is achieved, and the screws are fixed.

[0026] The connecting nails 6 are high-temperature-resistant steel nails, which penetrate from the inner wall of the furnace wall 1 to the hollow; the heat insulation layer 5 is connected to the furnace wall through the steel nails.

[0027] The heat insulation layer 5 is a ceramic fiber layer; the ceramic fiber layer is arranged to have the effects of heat insulation, high-temperature resistance, chemical corrosion resistance and heat shock resistance, and the quality of the furnace wall is not affected when the furnace wall is contacted with waste gas.

[0028] Working principle of the utility model:

[0029] The furnace wall is composed of furnace wall components, the polyurethane foam board is arranged between the furnace wall components when the furnace wall is installed, the gaps between the furnace wall components are reduced, the gaps between the furnace wall components are reduced and the polyurethane foam board is extruded, and the gaps between the furnace wall components disappear; after the ceramic fiber layer is fixed on the furnace wall by the steel nails, the heat insulation cement is filled in the hollow of the furnace wall components, the screws and the steel nails are fixed on the furnace wall after the cement is solidified, the screws and the steel nails are not shaken after being fixed, and the gaps on the furnace wall are further avoided.

[0030] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as the limitation of the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A composite wall structure of a petrochemical waste heat boiler, comprising a wall (1) and a heat insulation filling layer (3), characterized in that: the wall (1) comprises a plurality of wall components, each of which is connected with a connecting piece (2) and has a gap between each other, the gap is filled with a heat insulation filling layer (3), the connecting piece (2) passes through the hollow of one wall component to the hollow of the adjacent wall component for connecting the adjacent wall components, the wall is internally hollow for filling a pouring layer (4), the inner wall of the wall (1) is provided with a heat preservation layer (5), and the connecting nail (6) is provided between the heat preservation layer and the wall and penetrates into the hollow.

2. A composite wall structure for a petrochemical waste heat boiler according to claim 1, characterized in that, The connecting piece (2) is a bolt, which penetrates from the hollow of one wall component to the hollow of another wall component, and the bolt is tightened to reduce the gap between the wall components.

3. A composite wall structure for a petrochemical waste heat boiler according to claim 1, wherein The heat insulation filling layer (3) is a polyurethane foam board.

4. A composite wall structure for a petrochemical waste heat boiler according to claim 1, wherein The filling pouring layer (4) is heat insulation cement.

5. A composite wall structure for a petrochemical waste heat boiler according to claim 1, wherein The connecting nail (6) is a high-temperature-resistant steel nail, which penetrates from the inner wall of the wall (1) to the hollow.

6. A composite wall structure for a petrochemical waste heat boiler according to any one of claims 1 to 5, characterized in that, The heat preservation layer (5) is a ceramic fiber layer.

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