Novel furnace cover

Abstract

The utility model provides a novel furnace cover, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The novel furnace cover comprises a disc-shaped body, an annular protruding connecting edge is arranged on the upper edge of the body, a cavity is formed in the body, heat insulation filler is arranged in the cavity, a concave cavity is formed in the inner side of the body, the novel furnace cover further comprises a connecting pipe, the middle of the connecting pipe is fixed to the body in a penetrating mode, and the inner end of the connecting pipe extends out of the inner side of the body. The outer end of the connecting pipe extends out of the body and is provided with a connector for being connected with a pressure gauge. The novel furnace cover is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a novel furnace cover. Background Art

[0002] The furnace cover, also called the furnace top or pot cover, is an important component of the top of various heating furnaces, smelting furnaces, boilers and other equipment. Its main function is to seal the furnace to prevent heat loss and control the atmosphere in the furnace to achieve the purpose of improving thermal efficiency, protecting the furnace environment and promoting the combustion or smelting process.

[0003] The existing furnace cover is usually an integrated metal structure. In order to prevent the furnace cover from being overheated, a cooling water circulation system is usually provided at the furnace cover. Although this solves the problem of the furnace cover being overheated during use, its structure is too complicated, resulting in a relatively high cost.

[0004] At the same time, in order to know the pressure parameters in the furnace body in time, a pressure gauge is arranged on the furnace body.

[0005] Since the pressure gauge runs through the furnace body, this will reduce the strength of the furnace body. The entire heating furnace is damaged at the connection of the pressure gauge. Once damaged, the entire heating furnace will be scrapped and cannot be used. The cost of use is relatively high. Summary of the invention

[0006] The purpose of the utility model is to provide a new furnace cover with high stability and compact structure in view of the above problems existing in the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A new type of furnace cover includes a disc-shaped body, characterized in that the upper edge of the body has an annular protruding connecting edge, the interior of the body is a cavity with a heat-insulating filler therein, the inner side of the body has a recessed cavity, and also includes a connecting pipe, the middle part of the connecting pipe is passed through and fixed on the body, the inner end of the connecting pipe extends out of the inner side of the body, the outer end of the connecting pipe extends out of the outside of the body and an interface for connecting a pressure gauge is provided at the outer end of the connecting pipe.

[0009] The novel furnace cover creatively sets the main body as a cavity structure. After the heat insulating filler is filled in the main body, it can not only reduce the heat conduction speed but also appropriately increase the weight of the furnace cover.

[0010] At the same time, the connection edge is also stably connected to the sealing ring to ensure that when the furnace cover and the furnace body of the heating furnace are buckled and connected, the connection has sufficient sealing. Of course, the sealing ring is a high-temperature resistant sealing ring. Since this patent application is an innovative technical solution for the furnace cover, the material and specific structure of the sealing ring are not the problems that this patent needs to solve. Therefore, the technical features of the sealing ring are no longer described in detail in the specification.

[0011] The pressure gauge can be indirectly and stably connected to the furnace cover by the connecting pipe.

[0012] In the above-mentioned new furnace cover, the main body includes a main body one with a cavity inside and an opening on the top and a disc-shaped main body two. The above-mentioned main body two is fixedly connected to the port of the main body one, and the above-mentioned insulation filler is located in the cavity formed between the main body one and the main body two.

[0013] The main body 1 and the main body 2 are both made of metal materials. After the main body 2 is welded and connected to the end of the main body 1, the heat insulation filler can be stably located in the main body.

[0014] In the above-mentioned novel furnace cover, the thickness dimension of the connecting edge is greater than the thickness dimension of the main body 2, and the outer edges of the main body 2 and the main body 1 are fixedly connected to the inner edge of the connecting edge.

[0015] The edges of the main body 1 and the main body 2 are fixedly connected to the inner edge of the connecting edge by welding, which not only improves the compactness of the structure but also has a relatively high connection stability.

[0016] In the above-mentioned novel furnace cover, the upper portion of the second body is flush with the upper portion of the connecting edge.

[0017] This can appropriately improve the compactness of the structure.

[0018] In the above-mentioned new furnace cover, the connecting edge is fixedly connected with an inner edge and an outer edge which are annular and concentrically arranged. The outer edge is located outside the inner edge, and an annular groove opening downward is formed between the connecting edge, the inner edge and the outer edge.

[0019] The sealing ring can be positioned at the annular groove to ensure that the sealing ring is stably connected to the furnace cover.

[0020] In the above-mentioned novel furnace cover, the two lower edges of the main body are provided with a smoothly transitioning portion.

[0021] In the above-mentioned novel furnace cover, the transition portion is a rounded corner at the two lower edges of the body.

[0022] In the above-mentioned novel furnace cover, the transition portion is a chamfer at the two lower edges of the body.

[0023] The setting of the transition part can avoid the furnace cover and the furnace body from being stuck and touching each other during the process of opening the door and furnace cover.

[0024] In the above-mentioned novel furnace cover, the inner end surface of the connecting pipe is arranged to be inclined with respect to the axial center line of the connecting pipe.

[0025] In the above-mentioned novel furnace cover, the inclination angle of the port surface at the inner end of the connecting pipe is 30-40 degrees.

[0026] The port at the inner end of the connecting pipe is tilted to appropriately increase the port area, thereby enabling more accurate pressure detection.

[0027] Compared with the prior art, the new furnace cover is installed in the body with insulating fillers, which reduces the cost of the body and ensures its strength and thermal insulation performance. In addition, the connecting pipe used to connect to the pressure gauge is fixed on the furnace cover. The furnace cover can be replaced separately after being damaged. Compared with replacing the furnace body, the cost of using the heating furnace is relatively low.

[0028] At the same time, the main body is flush with the connecting edge, which also improves the structural compactness of the entire furnace cover and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a top view structural schematic diagram of the novel furnace cover.

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the novel furnace cover.

[0031] In the figure, 1, main body one; 2, main body two; 2a, transition part; 3, connecting edge; 4, thermal insulation filler; 5, connecting pipe; 6, inner edge; 7, outer edge. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0035] like Figure 1and Figure 2 As shown, the new furnace cover includes a disc-shaped body, the upper edge of the body has a ring-shaped protruding connecting edge 3, the interior of the body is a cavity and has a heat-insulating filler therein, the inner side of the body has a recessed cavity, and also includes a connecting pipe 5, the middle part of the connecting pipe 5 is passed through and fixed on the body, the inner end of the connecting pipe 5 extends out of the inner side of the body, the outer end of the connecting pipe 5 extends out of the outside of the body and an interface for connecting a pressure gauge is provided at the outer end of the connecting pipe 5.

[0036] The main body comprises a main body 1 which is hollow inside and opened at the top and a main body 2 which is in the shape of a disc. The main body 2 is fixedly connected to the port of the main body 1, and the thermal insulation filler 4 is located in the cavity formed between the main body 1 and the main body 2.

[0037] In this embodiment, the heat insulating filler 4 is expanded perlite or aerated concrete.

[0038] The thickness dimension of the connecting edge 3 is greater than the thickness dimension of the main body 2 , and the outer edges of the main body 2 2 and the main body 1 1 are fixedly connected to the inner edge of the connecting edge 3 .

[0039] The upper portion of the main body 2 is flush with the upper portion of the connecting edge 3 .

[0040] The connecting edge 3 is fixedly connected with an inner edge 6 and an outer edge 7 which are annular and cocentrically arranged. The outer edge 7 is located outside the inner edge 6. An annular groove opening downward is formed among the connecting edge 3, the inner edge 6 and the outer edge 7.

[0041] The lower edge of the main body 2 has a smoothly transitioning portion 2a.

[0042] The transition portion 2a is a rounded corner at the lower edge of the main body 2. According to actual conditions, it is also feasible that the transition portion 2a is a chamfer at the lower edge of the main body 2.

[0043] The inner end surface of the connecting pipe 5 is inclined with respect to the axial center line of the connecting pipe 5 .

[0044] The inclination angle of the port surface at the inner end of the connecting pipe 5 is 30 degrees. According to the actual situation, the inclination angle can be 33 or 40 degrees.

[0045] The novel furnace cover creatively sets the main body as a cavity structure. After the heat insulating filler is filled in the main body, it can not only reduce the heat conduction speed but also appropriately increase the weight and strength of the furnace cover.

[0046] At the same time, the connection edge is also stably connected to the sealing ring to ensure that when the furnace cover and the furnace body of the heating furnace are buckled and connected, the connection has sufficient sealing. Of course, the sealing ring is a high temperature resistant sealing ring. Since this patent application is an innovative technical solution for the furnace cover, the material and specific structure of the sealing ring are not the problems that this patent needs to solve. Therefore, the technical features of the sealing ring are not repeated in the embodiment.

[0047] The pressure gauge can be indirectly and stably connected to the furnace cover by the connecting pipe. Of course, the connecting pipe connected through the furnace cover reduces the strength of the furnace cover, but the furnace cover can be replaced separately after being damaged, and its use cost is relatively low compared to replacing the furnace body.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A novel furnace cover, comprising a disc-shaped body, characterized in that: The upper edge of the main body is provided with an annular protruding connecting edge (3), the interior of the main body is a cavity and a heat insulating filler (4) is provided therein, the inner side of the main body is provided with a recessed cavity, and further comprises a connecting pipe (5), the middle part of the connecting pipe (5) is passed through and fixed on the main body, the inner end of the connecting pipe (5) extends out of the inner side of the main body, the outer end of the connecting pipe (5) extends out of the outer side of the main body, and an interface for connecting a pressure gauge is provided at the outer end of the connecting pipe (5).

2. The novel furnace cover according to claim 1 is characterized in that: The main body comprises a main body (1) with a hollow interior and an opening at the top and a main body (2) in the shape of a disc, wherein the main body (2) is fixedly connected to the port of the main body (1), and the heat insulating filler (4) is located in the cavity formed between the main body (1) and the main body (2).

3. The novel furnace cover according to claim 2 is characterized in that: The thickness dimension of the connecting edge (3) is greater than the thickness dimension of the main body 2 (2), and the outer edges of the main body 2 (2) and the main body 1 (1) are fixedly connected to the inner edge of the connecting edge (3).

4. The novel furnace cover according to claim 3 is characterized in that: The upper portion of the second body (2) is flush with the upper portion of the connecting edge (3).

5. The novel furnace cover according to claim 4 is characterized in that: The connecting edge (3) is fixedly connected with an inner edge (6) and an outer edge (7) which are annular and cocentrically arranged. The outer edge (7) is located outside the inner edge (6). An annular groove opening downward is formed between the connecting edge (3), the inner edge (6) and the outer edge (7).

6. The novel furnace cover according to claim 5 is characterized in that: The lower edge of the main body 2 (2) is provided with a smoothly transitioning portion (2a).

7. The novel furnace cover according to claim 6 is characterized in that: The transition portion (2a) is a rounded corner at the lower edge of the body 2 (2).

8. The novel furnace cover according to claim 6 is characterized in that: The transition portion (2a) is a chamfer at the lower edge of the body 2 (2).

9. The novel furnace cover according to claim 7 is characterized in that: The inner end surface of the connecting pipe (5) is arranged obliquely with respect to the axis center line of the connecting pipe (5).

10. The novel furnace cover according to claim 9 is characterized in that: The inclination angle of the port surface at the inner end of the connecting pipe (5) is 30-40 degrees.

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