Furnace door and reaction furnace

Abstract

The utility model provides a furnace door and a reacting furnace. The furnace door comprises a door body and a heat insulation part. A sealing ring is arranged on one face of the door body which is used for being connected with a furnace tube. The heat insulation part is connected to the door body, located on the outer side of the sealing ring and protrudes out of the face, provided with the sealing ring, of the door body, the heat insulation part is located on the periphery of a pipe opening of the furnace pipe when the door body is connected with the furnace pipe, and the heat insulation part is located between the sealing ring and the pipe opening when the door body is opened relative to the furnace pipe. When the furnace door closes the furnace tube, the furnace door clings to the water-cooling flange to close the tube orifice, and the water-cooling flange can cool the sealing ring on the furnace door. When the furnace door is opened relative to the furnace tube, the tube opening of the furnace tube is exposed, the heat insulation piece protrudes out of the face, provided with the sealing ring, of the door body, and the heat insulation piece is located between the tube opening and the sealing ring to separate the tube opening from the sealing ring, heat transmitted from the tube opening of the furnace tube can be stopped, and the situation that the sealing ring is damaged by high temperature due to the fact that the heat transmitted from the tube opening acts on the sealing ring is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic material processing, in particular to a furnace door and a reaction furnace. BACKGROUND

[0002] High-temperature tubular equipment is generally sealed by a furnace door, and the key component of the sealing is a sealing ring. The service life of the sealing ring is shortened due to long-time heating.

[0003] During the process of the reaction furnace in and out of the boat, the furnace door is opened for a long time to expose the pipe opening of the furnace pipe. The heat in the furnace pipe is transmitted out through the pipe opening and acts on the sealing ring. The service life of the sealing ring is shortened due to long-time heating. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a furnace door capable of preventing the heat in the furnace pipe from acting on the sealing ring.

[0005] An embodiment of the present application provides a furnace door, comprising a door body and a heat insulation piece. One side of the door body is provided with a sealing ring, and the door body is used for connecting a furnace pipe. The heat insulation piece is connected to the door body, and the heat insulation piece is located outside the sealing ring and protrudes from the side of the door body provided with the sealing ring. When the door body is connected to the furnace pipe, the heat insulation piece is located at the outer periphery of the pipe opening of the furnace pipe. When the door body is opened relative to the furnace pipe, the heat insulation piece is located between the sealing ring and the pipe opening, so that the heat insulation piece at least partially shields the sealing ring.

[0006] In some embodiments of the present application, the projection length of the heat insulation piece in the first direction is L, and the diameter of the pipe opening is D, and L is greater than or equal to D. When the door body is opened relative to the furnace pipe, the door body is defined as moving in a second direction relative to the pipe opening, and the second direction is perpendicular to the first direction.

[0007] In some embodiments of the present application, the heat insulation piece is an arc-shaped strip.

[0008] In some embodiments of the present application, the corresponding radian of the heat insulation piece is 0.5π-2π.

[0009] In some embodiments of the present application, the furnace door further comprises a connecting plate connected to the outer peripheral surface of the door body and the heat insulation piece, so that the heat insulation piece is connected to the door body.

[0010] In some embodiments of the present application, one side of the door body is provided with a mounting groove for mounting the sealing ring.

[0011] In some embodiments of the present application, the heat insulation piece comprises a quartz heat insulation piece.

[0012] In some embodiments of the present application, the connecting plate is a stainless steel connecting plate.

[0013] The embodiment of the present application also provides a reaction furnace, which comprises a furnace pipe and the furnace door in the above embodiment, and the furnace door is connected to the furnace pipe to close the pipe opening.

[0014] In some embodiments of the present application, the furnace pipe has a water-cooled flange, which abuts against the sealing ring to cool the sealing ring when the pipe opening is closed.

[0015] In the embodiment of the present application, when the furnace door closes the furnace pipe, the furnace door abuts against the water-cooled flange to close the pipe opening, and the water-cooled flange can cool the sealing ring on the furnace door. When the furnace door is opened relative to the furnace pipe, the pipe opening of the furnace pipe is exposed, the heat insulation member protrudes from the side of the door body provided with the sealing ring, and the heat insulation member is located between the pipe opening and the sealing ring. The heat insulation member at least partially blocks the sealing ring to separate the pipe opening and the sealing ring, so as to stop the heat from the pipe opening of the furnace pipe, and prevent the heat from the pipe opening from acting on the sealing ring to damage the sealing ring. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope.

[0017] Figure 1 The schematic view of the furnace door when the furnace door is opened relative to the furnace pipe in an embodiment of the present application.

[0018] Figure 2 The structure of the furnace door in an embodiment of the present application. Figure 1 The structure of the furnace door in an embodiment of the present application.

[0019] Figure 3 The structure of the furnace door in an embodiment of the present application. Figure 1 The structure of the furnace door in an embodiment of the present application.

[0020] Explanation of main element symbols:

[0021] 100, furnace door; 10, door body; 101, mounting groove; 20, heat insulation member; 30, connecting plate; 200, furnace pipe; 2001, pipe opening; 210, water-cooled flange; 300, reaction furnace; Y, first direction; X, second direction; Z, third direction. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0024] The term "vertical" is used to describe an ideal state. In actual production or use state, there can be a state similar to vertical.

[0025] It is to be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. When an element is referred to as being "positioned on" another element, it can be directly positioned on the other element or intervening elements can also be present.

[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Various features that are described in the specification can be combined with each other without limitation unless otherwise indicated.

[0027] High-temperature tubular equipment is usually sealed by a furnace door, and the key part of the sealing is a sealing ring. The service life of the sealing ring is shortened due to long-time heating. During the process of the reaction furnace in and out of the boat, the furnace door is opened for a long time to expose the pipe opening of the furnace tube. The heat in the furnace tube is transmitted out through the pipe opening and acts on the sealing ring. The service life of the sealing ring is shortened due to long-time heating.

[0028] Embodiments of the application provide a furnace door capable of preventing the heat in the furnace tube from acting on the sealing ring. The furnace door comprises a door body and a heat insulation member. One side of the door body is provided with a sealing ring, and the door body is used for connecting the furnace tube. The heat insulation member is connected to the door body, and the heat insulation member is located outside the sealing ring and protrudes from the side of the door body provided with the sealing ring. The heat insulation member is located at the outer periphery of the pipe opening of the furnace tube when the door body is connected to the furnace tube, and the heat insulation member is located between the sealing ring and the pipe opening when the door body is opened relative to the furnace tube, so that the heat insulation member at least partially shields the sealing ring.

[0029] In the embodiments of this application, when the furnace door closes the furnace tube, the furnace door is pressed tightly against the water-cooled flange to close the pipe opening, and the water-cooled flange can cool the sealing ring on the furnace door. When the furnace door is opened relative to the furnace tube, the pipe opening of the furnace tube is exposed, and the heat insulation component protrudes from the side of the door body where the sealing ring is provided, and the heat insulation component is located between the pipe opening and the sealing ring. The heat insulation component at least partially covers the sealing ring to separate the pipe opening and the sealing ring, which can block the heat transmitted from the pipe opening of the furnace tube and prevent the heat of the furnace tube from being transmitted from the pipe opening and acting on the sealing ring, causing the sealing ring to be damaged by high temperature.

[0030] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Please see Figure 1 One embodiment of this application provides a reactor 300, including a furnace tube 200 and a furnace door 100. The furnace tube 200 has a port 2001. The furnace door 100 is connected to the furnace tube 200 to close the port 2001.

[0032] Please combine Figure 2 The furnace door 100 includes a door body 10 and a heat insulation component 20. The door body 10 is used to connect to the furnace tube 200 to close the tube opening 2001. A sealing ring (not shown) is provided on one side of the door body 10. The furnace tube 200 has a water-cooled flange 210, which is located at the tube opening 2001. When the door body 10 is connected to the furnace tube 200, the tube opening 2001 is closed, the door body 10 is in close contact with the tube opening 2001 of the furnace tube 200, and the water-cooled flange 210 abuts against the door body 10 and the sealing ring, thereby cooling the sealing ring.

[0033] The heat insulation element 20 is connected to the door body 10. The heat insulation element 20 is located outside the sealing ring and protrudes from the side of the door body 10 where the sealing ring is located. When the door body 10 is connected to the furnace tube 200, the heat insulation element 20 is located on the outer periphery of the tube opening 2001 of the furnace tube 200. When the door body 10 is opened relative to the furnace tube 200, the tube opening 2001 is exposed. At this time, heat inside the furnace tube 200 can be transferred out through the tube opening 2001. The heat insulation element 20 is located between the sealing ring and the tube opening 2001, and protrudes from the side of the door body 10 towards the tube opening 2001. The heat insulation element 20 can at least partially cover the sealing ring to separate the tube opening 2001 and the sealing ring, thus acting as a barrier to prevent heat from the tube opening 2001 from acting on the sealing ring and preventing the sealing ring from being damaged by heat over a long period.

[0034] Please see Figure 1 In some embodiments, when the door body 10 is opened relative to the furnace tube 200, the door body 10 is located on one side of the tube opening 2001, that is, the sealing ring is not directly opposite the tube opening 2001 (see [reference]). Figure 1), the sealing ring and the heat insulation piece 20 are arranged on the side of the door body 10 facing the furnace tube 200, and the heat insulation piece 20 is closer to the furnace tube 200 than the sealing ring, so that the heat insulation piece 20 can form a barrier between the sealing ring and the pipe opening 2001, block the heat transmitted from the pipe opening 2001, and limit the heat from acting on the sealing ring. Further, the heat insulation piece 20 contacts the furnace tube 200, so that the heat insulation piece 20 has no gap with the furnace tube 200, and compared with the case that the heat insulation piece 20 has a gap with the furnace tube 200, the heat transmitted from the pipe opening 2001 cannot act on the sealing ring after passing through the gap, and the sealing ring is less likely to have a shortened service life due to heat, and has a better heat insulation effect.

[0035] Please refer to Figure 2 and Figure 3 In some embodiments, one side of the door body 10 is provided with a mounting groove 101 for mounting the sealing ring. The sealing ring is embedded in the mounting groove 101, so that the sealing ring is tightly attached to the water-cooled flange 210 when the door body 10 is connected to the furnace tube 200, improving the sealing performance of the furnace door 100 on the furnace tube 200, and also making the sealing ring farther away from the furnace tube 200 than the heat insulation piece 20 when the door body 10 is opened relative to the furnace tube 200, thereby increasing the service life of the sealing ring.

[0036] In some embodiments, the pipe opening 2001 of the furnace tube 200 is a circular pipe opening 2001. The outer peripheral surface of the door body 10 is a cylindrical surface, i.e., the door body 10 is cylindrical, to adapt to the furnace tube 200. The diameter of the door body 10 is greater than the diameter D of the pipe opening 2001. The mounting groove 101 and the sealing ring are both circular rings to adapt to the pipe opening 2001.

[0037] Please refer to Figure 1 In some embodiments, when the door body 10 is opened relative to the furnace tube 200, the door body 10 is defined as moving in a second direction X relative to the pipe opening 2001, i.e., the sealing ring is located on the right side of the pipe opening 2001. The diameter of the pipe opening 2001 is D. The projection length of the heat insulation piece 20 in the first direction Y is L. The first direction Y is perpendicular to the second direction X. L≥D, so that the heat insulation piece 20 can block the heat transmitted from the pipe opening 2001 and diffused to the right side, thereby protecting the sealing ring.

[0038] In some embodiments, the heat insulation piece 20 is an arc-shaped strip, which can adapt to the shapes of the cylindrical door body 10 and the circular ring-shaped sealing ring. The center of the heat insulation piece 20 coincides with the center of the sealing ring, and the diameter of the heat insulation piece 20 is greater than the diameter D of the pipe opening 2001, so as to prevent the heat insulation piece 20 from affecting the closing of the pipe opening 2001 when the door body 10 is connected to the furnace tube 200. The shape of the heat insulation piece 20 can adapt to the shape of the sealing ring, and can better block the heat transmitted from the pipe opening 2001.

[0039] In some embodiments, the corresponding arc of the heat insulation piece 20 is 0.5π~2π. A large amount of heat emitted from the pipe opening 2001 spreads in the third direction Z, and a small amount of heat spreads in the first direction Y and the second direction X (see Figure 1 ), wherein the heat spreading in the second direction X is easy to act on the sealing ring and affect the service life of the sealing ring. The heat insulation piece 20 mainly blocks the heat spreading in the second direction X, so when the corresponding arc of the heat insulation piece 20 is larger, the heat insulation piece 20 can better protect the sealing ring, not only blocking the heat spreading in the second direction X, but also preventing the heat spreading in the first direction Y from acting on the sealing ring. When the corresponding arc of the heat insulation piece 20 is smaller, the material of the heat insulation piece 20 can be saved, and the connection between the door body 10 and the furnace pipe 200 can be observed more conveniently. The third direction Z is perpendicular to the first direction Y and the second direction X, and the third direction Z is the protruding direction of the heat insulation piece 20 relative to the door body 10.

[0040] In some embodiments, the heat insulation piece 20 is a quartz heat insulation piece 20. The heat resistance of quartz is significantly better than that of natural stone such as marble and granite, and can withstand high temperature under normal use conditions, and can be used as a heat insulation piece 20 to block the heat emitted from the pipe opening 2001 and spreading in the second direction X. In addition, the heat insulation piece 20 can also be other materials that can block heat such as aerogel and rock wool, which are not limited here.

[0041] In some embodiments, the heat insulation piece 20 can be directly fixedly connected to the door body 10. By providing a clamping groove on the door body 10, the heat insulation piece 20 is embedded in the clamping groove, so that the heat insulation piece 20 is connected to the door body 10. The heat insulation piece 20 can also be connected to the door body 10 by an adhesive, which is not limited by the present application, and can be selected by those skilled in the art according to the actual situation.

[0042] Please refer to Figure 3 In some embodiments, the heat insulation piece 20 can also be connected to the door body 10 through the connecting plate 30, and the connecting plate 30 is connected to the outer circumferential surface of the door body 10 and the heat insulation piece 20, so that the heat insulation piece 20 is connected to the door body 10. The outer circumferential surface of the door body 10 and the heat insulation piece 20 is fixed by the connecting plate 30, so as to install and fix the heat insulation piece 20, and the installation position of the heat insulation piece 20 can be observed from the outer circumferential surface of the door body 10 or the side of the door body 10 away from the sealing ring.

[0043] In some embodiments, the connecting plate 30 is a stainless steel connecting plate 30. The heat insulation piece 20 and the door body 10 can be welded on the connecting plate 30. The stainless steel connecting plate 30 has high strength and can withstand large load, ensuring the stability and reliability of the connection. In addition, the connecting plate 30 can also be other materials that can connect the door body 10 and the heat insulation piece 20, which are not limited here.

[0044] In some embodiments, the door body 10 is made of metal, and the connecting plate 30 can be welded to the door body 10, or can be riveted to the door body 10 by screws. The application does not limit this, and those skilled in the art can select a specific connection method according to the actual situation.

[0045] The connecting plate 30 can be clamped with the thermal insulation piece 20, or can be wrapped or embedded in at least part of the thermal insulation piece 20, so that the thermal insulation piece 20 is connected to the connecting plate 30. The thermal insulation piece 20 can also be connected to the connecting plate 30 by an adhesive. The application does not limit this, and those skilled in the art can select a specific connection method according to the actual situation.

[0046] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the application, and are not used as a limitation on the application. Any appropriate changes and variations to the above embodiments, as long as they are within the spirit and scope of the application, fall within the disclosure range of the application.

Claims

1. A furnace door, characterized in that, include: The door body has a sealing ring on one side and is used to connect the furnace tube. A heat insulation component is connected to the door body. The heat insulation component is located outside the sealing ring and protrudes from the side of the door body where the sealing ring is located. When the door body is connected to the furnace tube, the heat insulation component is located on the outer periphery of the furnace tube opening. When the door body is opened relative to the furnace tube, the heat insulation component is located between the sealing ring and the opening, so that the heat insulation component at least partially covers the sealing ring.

2. The furnace door according to claim 1, characterized in that: The projected length of the heat insulation component in the first direction is L, and the diameter of the pipe opening is D, where L≥D; When the door body is opened relative to the furnace tube, the door body is defined to move in a second direction relative to the tube opening, the second direction being perpendicular to the first direction.

3. The furnace door according to claim 1, characterized in that: The heat insulation component is an arc-shaped strip.

4. The furnace door according to claim 3, characterized in that: The radius of curvature corresponding to the heat insulation component is 0.5π to 2π.

5. The furnace door according to any one of claims 1 to 4, characterized in that: The furnace door also includes a connecting plate, which is connected to the outer peripheral surface of the door body and the heat insulation component, so that the heat insulation component is connected to the door body.

6. The furnace door according to any one of claims 1 to 4, characterized in that, One side of the door body is provided with a mounting groove for installing the sealing ring.

7. The furnace door according to claim 1, characterized in that: The thermal insulation component includes a quartz thermal insulation component.

8. The furnace door according to claim 5, characterized in that: The connecting plate is a stainless steel connecting plate.

9. A reactor, characterized in that, It includes a furnace tube and a furnace door as described in any one of claims 1 to 8, the furnace door being connected to the furnace tube to close the tube opening.

10. The reactor according to claim 9, characterized in that: The furnace tube has a water-cooled flange, which abuts against the sealing ring when the tube is closed, thereby cooling the sealing ring.

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