L-shaped vertical acid gas incinerator with embedded heat exchange equipment

Abstract

The utility model relates to an L-shaped vertical acid gas incinerator with embedded heat exchange equipment, which comprises a vertical section incinerator body, a horizontal section incinerator body and the heat exchange equipment, one end of the horizontal section incinerator body is vertically and fixedly connected and communicated with the side wall of the vertical section incinerator body, the upper surface of the middle part of the horizontal section incinerator body is provided with an embedded port, and the embedded port is communicated with the horizontal section incinerator body. And the heat exchange equipment is mounted in the horizontal section furnace body from the embedding opening. According to the L-shaped vertical type acid gas incinerator with the embedded type heat exchange equipment, the L-shaped vertical type acid gas incinerator with the embedded type heat exchange equipment is adopted for a high-productivity wet-method acid making device, and the occupied area can be saved to a great extent. The total length of the horizontal incinerator and the heat exchange equipment is about 20 meters according to the sulfuric acid capacity of 100 thousand tons per year, and the transverse length of the vertical incinerator adopting the design is far smaller than the total length of the horizontal incinerator. During large overhaul, the heat exchange equipment only needs to be lifted out to wash the outer surface of the pipe set, and the cleaning and maintenance work cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field related to wet acid production, and in particular to an L-shaped vertical acid gas incinerator with an embedded heat exchange device. Background Art

[0002] The incinerator is the core equipment in the wet acid production process. The incinerator burns the acid gas containing hydrogen sulfide at high temperature to generate flue gas containing sulfur dioxide, which is sent to the downstream heat exchange equipment for heat exchange and cooled to the temperature required by the process. At present, the sulfuric acid production capacity of the domestic wet acid production process is mostly below 60,000 tons / year. The incinerator equipment of the device is a horizontal structure, and the outlet of the horizontal incinerator and the inlet of the heat exchange equipment are flanged or welded. Although the horizontal incinerator is simple and easy to hoist, for devices with large sulfuric acid production capacity, the overall size of the horizontal incinerator is relatively large, especially the length is relatively long, which increases the footprint of the device and cannot meet the owner's overall planning requirements for the plant area. When the device is overhauled, the heat exchange tubes of the heat exchange equipment are easily blocked and almost impossible to clean. Especially for high-capacity devices, the cleaning and maintenance costs of the heat exchange equipment are extremely high.

[0003] Due to the increasing demand for high-capacity wet acid production equipment in recent years, it is necessary to re-plan and design the structure of the incinerator equipment to not only meet the process requirements of the device but also save as much floor space as possible. Utility Model Content

[0004] In order to solve one or more technical problems existing in the prior art, the utility model provides an L-shaped vertical acid gas incinerator with an embedded heat exchange device.

[0005] The utility model provides a technical solution to the above technical problems as follows: an L-shaped vertical acid gas incinerator with an embedded heat exchange device, comprising a vertical furnace body, a horizontal furnace body and a heat exchange device, one end of the horizontal furnace body being vertically fixedly connected and communicated with the side wall of the vertical furnace body, an embedding opening being provided on the middle upper surface of the horizontal furnace body, and the heat exchange device being installed in the horizontal furnace body through the embedding opening.

[0006] The beneficial effects of the utility model are as follows: the L-shaped vertical acid gas incinerator with embedded heat exchange equipment of the utility model can save floor space to a great extent for high-capacity wet acid production devices. Calculated based on a sulfuric acid production capacity of 100,000 tons / year, the total length of the horizontal incinerator plus the heat exchange equipment is about 20 meters, and the lateral length of the vertical incinerator using this design is much smaller than the total length of the horizontal incinerator. The heat exchange equipment of the utility model adopts an embedded structure, which can reduce the lateral size of the heat exchange equipment. Moreover, for the embedded heat exchange equipment, the flue gas goes through the shell, and there is no blockage in the pipeline. During major overhauls, it is only necessary to lift the heat exchange equipment out to flush the outer surface of the pipe group, and the cleaning and maintenance work costs are low.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a flange plate is provided on the top of the heat exchange device, and the flange plate is butted against the upper surface around the embedding opening and fixed by bolts.

[0009] The beneficial effect of adopting the above further solution is that the flange plate is arranged to facilitate the connection and fixation of the heat exchange device with the horizontal section furnace body. The heat exchange device is embedded in the horizontal section furnace body from top to bottom for installation. Under the action of gravity of the heat exchange device, it is tightly pressed on the furnace body surface. After the bolts are tightened, even if there is a slight thermal deformation on the furnace body surface, no leakage will occur.

[0010] Furthermore, the flange plate is a rectangular plate.

[0011] Furthermore, the vertical cross-section of the horizontal section furnace body is a rectangular structure, and the upper surface of the horizontal section furnace body is a plane.

[0012] Furthermore, the vertical section furnace body is a cylindrical structure.

[0013] Furthermore, a support is provided on the horizontal section furnace body, and the bottom of the support is flush with the lower end of the vertical section furnace body.

[0014] The beneficial effect of adopting the above further scheme is that the setting of the support can not only support the horizontal section of the furnace body, but also effectively serve as a reinforcing rib to prevent the horizontal section of the incinerator from deforming under the gravity of the heat exchange equipment.

[0015] Furthermore, there are two supports, which are respectively arranged on both sides of the embedding opening.

[0016] Furthermore, the support is a concave structure, the upper end of the support has an embedding groove, and the horizontal section furnace body is fixed in the embedding groove.

[0017] Furthermore, a burner interface is provided on the top of the vertical section furnace body, and the burner interface is a truncated cone structure that is small at the top and large at the bottom.

[0018] Furthermore, a smoke outlet is provided at one end of the horizontal furnace body away from the vertical furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view structural schematic diagram of an L-shaped vertical acid gas incinerator with an embedded heat exchange device of the utility model;

[0020] Figure 2 for Figure 1 The structural diagram of the middle A direction;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure in the middle B direction;

[0022] Figure 4 It is a structural schematic diagram of the heat exchange equipment of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Vertical furnace body; 2. Horizontal furnace body; 3. Heat exchange equipment; 4. Flange plate; 5. Bolts; 6. Burner interface; 7. Smoke exhaust port; 8. Support. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] like Figure 1 to Figure 4 As shown, an L-shaped vertical acid gas incinerator with an embedded heat exchange device in this embodiment includes a vertical furnace body 1, a horizontal furnace body 2 and a heat exchange device 3, one end of the horizontal furnace body 2 is vertically fixedly connected and communicated with the side wall of the vertical furnace body 1, and an embedding opening is provided on the middle upper surface of the horizontal furnace body 2, and the heat exchange device 3 is installed in the horizontal furnace body 2 through the embedding opening.

[0027] The cold medium of the heat exchange device 3 is passed through the tube side, and the flue gas is passed through the shell side. The heat exchange device 3 as a whole can adopt a cubic structure, and is hoisted from top to bottom and embedded in the horizontal section furnace body of the incinerator.

[0028] like Figure 4As shown, the top of the heat exchange device 3 of this embodiment is provided with a flange plate 4, and the flange plate 4 is connected to the upper surface of the embedding port and fixed by bolts 5. The provision of the flange plate facilitates the connection and fixation of the heat exchange device to the horizontal section furnace body. The heat exchange device is embedded in the horizontal section furnace body from top to bottom for installation. Under the action of the gravity of the heat exchange device, it is tightly pressed on the surface of the furnace body. After the bolts are tightened, even if there is a slight thermal deformation on the surface of the furnace body, no leakage will occur. The heat exchange device 3 uses a plurality of heat exchange tubes integrated on one side of the flange plate. Inlet and outlet collecting pipes and inlet and outlet pipe ports are provided on the flange plate for the introduction of cold medium. A plurality of bolts can be provided at the edges around the flange plate for connecting the horizontal section furnace body.

[0029] like Figure 4 As shown, a specific solution of this embodiment is that the flange plate 4 is a rectangular plate.

[0030] Specifically, Figure 1 to Figure 3 As shown, the vertical cross-section of the horizontal section furnace body 2 is a rectangular structure, and the upper surface of the horizontal section furnace body 2 is a plane.

[0031] like Figure 1 and Figure 2 As shown, the vertical section furnace body 1 of this embodiment is a cylindrical structure.

[0032] like Figure 1 to Figure 3 As shown, a support is provided on the horizontal furnace body 2, and the bottom of the support 8 is flush with the lower end of the vertical furnace body 1. The setting of the support can not only support the horizontal furnace body, but also effectively serve as a reinforcing rib to prevent the horizontal furnace body of the incinerator from being deformed under the gravity of the heat exchange equipment.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, there are two supports 8, and the two supports 8 are respectively arranged on both sides of the embedding opening.

[0034] like Figure 1 and Figure 2 As shown, the support 8 of this embodiment is a concave structure, and the upper end of the support 8 has an embedding groove, and the horizontal section furnace body 2 is fixed in the embedding groove. The support adopts a concave structure, and the supporting surface covers three surfaces of the horizontal section furnace body, namely the bottom surface and two side surfaces, and the structure is more stable and reliable.

[0035] like Figure 1 and Figure 2 As shown, a burner interface 6 is provided on the top of the vertical section furnace body 1 of this embodiment, and the burner interface 6 is a truncated cone structure that is small at the top and large at the bottom.

[0036] like Figure 1 and Figure 2As shown, in this embodiment, a smoke outlet 7 is provided at one end of the horizontal furnace body 2 away from the vertical furnace body 1 , and the smoke containing sulfur dioxide in the incinerator is discharged from the smoke outlet 7 of the horizontal furnace body 2 .

[0037] The total length of the L-shaped vertical acid gas incinerator with embedded heat exchange equipment of the utility model does not exceed 10 meters.

[0038] The L-shaped vertical acid gas incinerator with embedded heat exchange equipment in this embodiment can save floor space to a great extent for high-capacity wet acid production equipment. Calculated based on the sulfuric acid production capacity of 100,000 tons / year, the total length of the horizontal incinerator plus the heat exchange equipment is about 20 meters. The lateral length of the vertical incinerator using this design is much smaller than the total length of the horizontal incinerator. The heat exchange equipment in this embodiment adopts an embedded structure, which can reduce the lateral size of the heat exchange equipment. In addition, for the embedded heat exchange equipment, the flue gas goes through the shell, and there is no blockage in the pipeline. During major overhaul, it is only necessary to lift the heat exchange equipment out and flush the outer surface of the pipe group, and the cleaning and maintenance work cost is low.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An L-shaped vertical acid gas incinerator with an embedded heat exchange device, characterized in that: It includes a vertical furnace body, a horizontal furnace body and a heat exchange device. One end of the horizontal furnace body is vertically fixedly connected and communicated with the side wall of the vertical furnace body. An embedding opening is provided on the middle upper surface of the horizontal furnace body. The heat exchange device is installed in the horizontal furnace body through the embedding opening.

2. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 1, characterized in that: A flange plate is provided on the top of the heat exchange device, and the flange plate is butted against the upper surface around the embedding opening and fixed by bolts.

3. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 2, characterized in that: The flange plate is a rectangular plate.

4. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 1, characterized in that: The vertical cross-section of the horizontal section furnace body is a rectangular structure, and the upper surface of the horizontal section furnace body is a plane.

5. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 1, characterized in that: The vertical furnace body is a cylindrical structure.

6. The L-shaped vertical acid gas incinerator with embedded heat exchange equipment according to claim 1, characterized in that: A support is provided on the horizontal section furnace body, and the bottom of the support is flush with the lower end of the vertical section furnace body.

7. The L-shaped vertical acid gas incinerator with embedded heat exchange equipment according to claim 6, characterized in that: There are two supports, which are respectively arranged on both sides of the embedding opening.

8. The L-shaped vertical acid gas incinerator with embedded heat exchange equipment according to claim 6, characterized in that: The support is a concave structure, and the upper end of the support is provided with an embedding groove, and the horizontal section furnace body is fixed in the embedding groove.

9. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 1, characterized in that: A burner interface is arranged on the top of the vertical furnace body, and the burner interface is a truncated cone structure that is small at the top and large at the bottom.

10. The L-shaped vertical acid gas incinerator with an embedded heat exchange device according to claim 1, characterized in that: A smoke outlet is arranged at one end of the horizontal furnace body away from the vertical furnace body.

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