Muffle cooling mechanism and muffle

Abstract

The utility model provides a kind of muffle furnace cooling mechanism and muffle furnace, it is related to heating equipment technical field, muffle furnace cooling mechanism includes air blower and pipeline assembly;Pipeline assembly includes first pipeline, second pipeline and third pipeline;First pipeline is used to set in muffle furnace top, and first pipeline is communicated with the top of muffle furnace;Second pipeline is used to set in muffle furnace below, and second pipeline is communicated with the bottom of muffle furnace;The middle part of one end of third pipeline is communicated with first pipeline, and the middle part of another end of third pipeline is communicated with second pipeline.Cooling when using muffle furnace cooling mechanism to muffle furnace, by controlling the opening and closing of first valve, second valve, third valve and fourth valve, muffle furnace from top to bottom cooling and muffle furnace from bottom to top cooling can be alternately carried out, to make muffle furnace internal temperature more uniform, and the uniformity of muffle furnace cooling is improved.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a muffle furnace cooling mechanism and a muffle furnace. Background Technology

[0002] A muffle furnace, also known as a box furnace, is characterized by its simple operation, convenient maintenance, and controllable chimney at the rear. It is suitable for chemical analysis of coal, coking products, and chemical raw materials.

[0003] Muffle furnaces require a cooling device to lower their temperature. In existing technology, the cooling device includes a blower, with air drawn in from below the muffle furnace shell and exiting from above.

[0004] Because the air enters from the bottom of the muffle furnace, the bottom of the muffle furnace cools faster than the top during cooling, resulting in poor temperature uniformity and uneven cooling inside the muffle furnace. Utility Model Content

[0005] The purpose of this invention is to provide a muffle furnace cooling mechanism to solve the technical problem of uneven cooling in existing muffle furnaces.

[0006] The muffle furnace cooling mechanism provided by this utility model includes a blower and a pipe assembly;

[0007] The piping assembly includes a first pipe, a second pipe, and a third pipe;

[0008] The first pipe is used to be installed above the muffle furnace, and the first pipe is connected to the top of the muffle furnace;

[0009] The second pipe is used to be installed below the muffle furnace, and the second pipe is connected to the bottom of the muffle furnace;

[0010] One end of the third pipe is connected to the middle of the first pipe, and the other end of the third pipe is connected to the middle of the second pipe; a first valve is provided at the end of the third pipe near the first pipe, and a second valve is provided at the end of the third pipe near the second pipe; the blower is connected to the third pipe.

[0011] The first pipe is equipped with a third valve at the end furthest from the muffle furnace, and the second pipe is equipped with a fourth valve at the end furthest from the muffle furnace.

[0012] Furthermore, the muffle furnace cooling mechanism also includes a controller, and the first valve, the second valve, the third valve and the fourth valve are respectively connected to the controller, which can control the opening and closing of the first valve, the second valve, the third valve and the fourth valve respectively.

[0013] Furthermore, the muffle furnace cooling mechanism also includes a fourth conduit;

[0014] One end of the fourth pipe is connected to the blower, and the other end of the fourth pipe is connected to the third pipe, with the other end of the fourth pipe located between the first valve and the second valve.

[0015] Furthermore, the muffle furnace cooling mechanism also includes a fifth pipe and a sixth pipe;

[0016] One end of the fifth pipe is connected to the end of the first pipe away from the muffle furnace, and the other end of the fifth pipe is connected to the end of the second pipe away from the muffle furnace;

[0017] One end of the sixth pipe is connected to the fifth pipe.

[0018] Furthermore, the muffle furnace cooling mechanism also includes a heat recovery component; one end of the sixth pipe is connected to the heat recovery component.

[0019] Furthermore, the first pipe is connected to the top of the muffle furnace via a seventh pipe.

[0020] Furthermore, there are multiple seventh pipes, which are spaced apart along the axial direction of the first pipe.

[0021] Furthermore, the second pipe is connected to the bottom of the muffle furnace via an eighth pipe.

[0022] Furthermore, there are multiple eighth pipes, and the multiple eighth pipes are arranged at intervals along the axial direction of the second pipe.

[0023] The purpose of this utility model is also to provide a muffle furnace, including the muffle furnace cooling mechanism provided by this utility model.

[0024] The muffle furnace cooling mechanism provided by this utility model includes a blower and a pipe assembly. The pipe assembly includes a first pipe, a second pipe, and a third pipe. The first pipe is positioned above the muffle furnace and is connected to the top of the muffle furnace. The second pipe is positioned below the muffle furnace and is connected to the bottom of the muffle furnace. One end of the third pipe is connected to the middle of the first pipe, and the other end of the third pipe is connected to the middle of the second pipe. A first valve is provided at the end of the third pipe near the first pipe, and a second valve is provided at the end of the third pipe near the second pipe. The blower is connected to the third pipe. A third valve is provided at the end of the first pipe away from the muffle furnace, and a fourth valve is provided at the end of the second pipe away from the muffle furnace. In use, the muffle furnace cooling mechanism opens the first and fourth valves, closes the third and second valves, and the air from the blower enters the third pipe, passes through the first valve, enters the first pipe, then enters the top of the muffle furnace, then enters the second pipe from the bottom of the muffle furnace, and exits through the fourth valve, thus achieving top-to-bottom cooling of the muffle furnace. By opening the second and third valves and closing the first and fourth valves, the blower's air enters the third pipe, then passes through the second valve into the second pipe, and from there enters the bottom of the muffle furnace. It then flows from the top of the muffle furnace into the first pipe and exits through the third valve, thus achieving bottom-to-top cooling of the muffle furnace. When using the muffle furnace cooling mechanism, by controlling the opening and closing of the first, second, third, and fourth valves, top-to-bottom cooling and bottom-to-top cooling can be alternated, resulting in a more uniform internal temperature and improved cooling uniformity. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the muffle furnace cooling mechanism provided in this embodiment of the utility model.

[0027] Icons: 1 - First pipe; 2 - Second pipe; 3 - Third pipe; 4 - Fourth pipe; 5 - Fifth pipe; 6 - Sixth pipe; 7 - Seventh pipe; 8 - Eighth pipe; 9 - Blower; 10 - Muffle furnace; 11 - First valve; 12 - Second valve; 13 - Third valve; 14 - Fourth valve; 15 - Heat recovery component; 16 - Outer casing. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] This utility model provides a muffle furnace cooling mechanism and a muffle furnace. Several embodiments are given below to describe the muffle furnace cooling mechanism and muffle furnace provided by this utility model in detail.

[0030] Example 1

[0031] The muffle furnace cooling mechanism provided in this embodiment, such as Figure 1 As shown, the system includes a blower 9 and a piping assembly. The piping assembly includes a first pipe 1, a second pipe 2, and a third pipe 3. The first pipe 1 is positioned above the muffle furnace 10 and is connected to the top of the muffle furnace 10. The second pipe 2 is positioned below the muffle furnace 10 and is connected to the bottom of the muffle furnace 10. One end of the third pipe 3 is connected to the middle of the first pipe 1, and the other end of the third pipe 3 is connected to the middle of the second pipe 2. A first valve 11 is provided at the end of the third pipe 3 near the first pipe 1, and a second valve 12 is provided at the end of the third pipe 3 near the second pipe 2. The blower 9 is connected to the third pipe 3. A third valve 13 is provided at the end of the first pipe 1 away from the muffle furnace 10, and a fourth valve 14 is provided at the end of the second pipe 2 away from the muffle furnace 10.

[0032] The first pipe 1 is located above the muffle furnace 10, and the axial direction of the first pipe 1 is horizontal. The first pipe 1 is connected to the top of the outer shell 16 of the muffle furnace 10.

[0033] The second pipe 2 is located below the muffle furnace 10. The axial direction of the second pipe 2 is horizontal. The second pipe 2 is connected to the bottom of the outer shell 16 of the muffle furnace 10.

[0034] Along the axial direction of the first pipe 1, the end of the first pipe 1 away from the muffle furnace 10, the third valve 13, the connection position between the first pipe 1 and the third pipe 3, and the connection position between the first pipe 1 and the muffle furnace 10 are set in sequence.

[0035] Along the axial direction of the second pipe 2, the end of the second pipe 2 away from the muffle furnace 10, the fourth valve 14, the connection position between the second pipe 2 and the third pipe 3, and the connection position between the second pipe 2 and the muffle furnace 10 are set in sequence.

[0036] The blower 9 is connected to the middle of the third pipe 3. Along the axial direction of the third pipe 3, the connection point between the blower 9 and the third pipe 3 is located between the first valve 11 and the second valve 12.

[0037] When the muffle furnace cooling mechanism is in use, the first valve 11 and the fourth valve 14 are opened, and the third valve 13 and the second valve 12 are closed. The air blown by the blower 9 into the third pipe 3 enters the first pipe 1 through the first valve 11, enters the top of the muffle furnace 10 through the first pipe 1, then enters the second pipe 2 from the bottom of the muffle furnace 10, and exits through the fourth valve 14, thus achieving cooling of the muffle furnace 10 from top to bottom. When the second valve 12 and the third valve 13 are opened, and the first valve 11 and the fourth valve 14 are closed, the air blown by the blower 9 into the third pipe 3 enters the second pipe 2 through the second valve 12, enters the bottom of the muffle furnace 10 through the second pipe 2, then enters the first pipe 1 from the top of the muffle furnace 10, and exits through the third valve 13, thus achieving cooling of the muffle furnace 10 from bottom to top.

[0038] When the muffle furnace 10 is cooled by the muffle furnace cooling mechanism, by controlling the opening and closing of the first valve 11, the second valve 12, the third valve 13 and the fourth valve 14, the muffle furnace 10 can be cooled from top to bottom and from bottom to top alternately, so that the internal temperature of the muffle furnace 10 is more uniform and the uniformity of cooling of the muffle furnace 10 is improved.

[0039] The opening and closing of the first valve 11, the second valve 12, the third valve 13, and the fourth valve 14 can be controlled manually or by a controller.

[0040] Furthermore, the muffle furnace cooling mechanism also includes a controller. The first valve 11, the second valve 12, the third valve 13 and the fourth valve 14 are respectively connected to the controller, and the controller can control the opening and closing of the first valve 11, the second valve 12, the third valve 13 and the fourth valve 14 respectively.

[0041] The controller can be programmed to set the cooling time of the muffle furnace 10 from top to bottom and from bottom to top, and to control the opening and closing of the first valve 11, the second valve 12, the third valve 13 and the fourth valve 14 at the set time to achieve the switching of cooling direction.

[0042] By controlling the opening and closing of the first valve 11, the second valve 12, the third valve 13, and the fourth valve 14 through the controller, the amount of manual labor can be reduced, and the accuracy is high.

[0043] Furthermore, the muffle furnace cooling mechanism also includes a fourth pipe 4; one end of the fourth pipe 4 is connected to the blower 9, the other end of the fourth pipe 4 is connected to the third pipe 3, and the other end of the fourth pipe 4 is located between the first valve 11 and the second valve 12.

[0044] Blower 9 is connected to third pipe 3 through fourth pipe 4. The air blown out by blower 9 is blown into third pipe 3 through fourth pipe 4. When first valve 11 is open and second valve 12 is closed, air enters first pipe 1 through first valve 11. When first valve 11 is closed and second valve 12 is open, air enters second pipe 2 through second valve 12.

[0045] The axis of the third pipe 3 is set vertically, and the axis of the fourth pipe 4 is set horizontally.

[0046] Furthermore, the muffle furnace cooling mechanism also includes a fifth pipe 5 and a sixth pipe 6; one end of the fifth pipe 5 is connected to the end of the first pipe 1 away from the muffle furnace 10, and the other end of the fifth pipe 5 is connected to the end of the second pipe 2 away from the muffle furnace 10; one end of the sixth pipe 6 is connected to the fifth pipe 5.

[0047] The air flowing out of the first pipe 1 through the third valve 13 can enter the fifth pipe 5 from the end of the first pipe 1 away from the muffle furnace 10, and then enter the sixth pipe 6 and flow out through the sixth pipe 6.

[0048] The air flowing out of the second pipe 2 through the fourth valve 14 can enter the fifth pipe 5 from the end of the second pipe 2 away from the muffle furnace 10, and then enter the sixth pipe 6 and flow out through the sixth pipe 6.

[0049] The axis of the fifth pipe 5 is set vertically, and the axis of the sixth pipe 6 is set horizontally.

[0050] Furthermore, the muffle furnace cooling mechanism also includes a heat recovery assembly 15; one end of the sixth pipe 6 is connected to the heat recovery assembly 15.

[0051] One end of the sixth pipe 6 is connected to the middle of the fifth pipe 5, and the other end of the sixth pipe 6 is connected to the heat recovery component 15. The air flowing out of the sixth pipe 6 enters the heat recovery component 15, which can recover the heat in the air, so that the energy can be reused, saving energy and protecting the environment.

[0052] Furthermore, the first pipe 1 is connected to the top of the muffle furnace 10 via the seventh pipe 7.

[0053] The first pipe 1 is connected to the top of the outer shell 16 of the muffle furnace 10 through the seventh pipe 7. The axis of the seventh pipe 7 is set in the vertical direction. Along the axis of the first pipe 1, the seventh pipe 7 is located at the end of the first pipe 1 near the muffle furnace 10. The third valve 13 and the seventh pipe 7 are located on both sides of the first valve 11, respectively.

[0054] Furthermore, there are multiple seventh pipes 7, which are spaced apart along the axial direction of the first pipe 1.

[0055] By introducing or expelling air into the muffle furnace 10 through multiple seventh pipes 7, the temperature uniformity inside the muffle furnace 10 can be improved.

[0056] Furthermore, the second pipe 2 is connected to the bottom of the muffle furnace 10 via the eighth pipe 8.

[0057] The second pipe 2 is connected to the bottom of the outer shell 16 of the muffle furnace 10 through the eighth pipe 8. The axis of the eighth pipe 8 is set in the vertical direction. Along the axis of the second pipe 2, the eighth pipe 8 is located at the end of the second pipe 2 near the muffle furnace 10. The fourth valve 14 and the eighth pipe 8 are located on both sides of the second valve 12, respectively.

[0058] Furthermore, there are multiple eighth pipes 8, which are spaced apart along the axial direction of the second pipe 2.

[0059] By introducing or expelling air into the muffle furnace 10 through multiple eighth pipes 8, the temperature uniformity inside the muffle furnace 10 can be improved.

[0060] In this embodiment, the connection between pipes can be a fixed connection, such as welding, or a detachable connection, such as a threaded connection. For example, the first pipe 1 is fixedly connected to the third pipe 3, the second pipe 2 is fixedly connected to the third pipe 3, the fourth pipe 4 is fixedly connected to the third pipe 3, the fourth pipe 4 is fixedly connected to the blower 6, the first pipe 1 and the second pipe 2 are respectively fixedly connected to the fifth pipe 5, the fifth pipe 5 is fixedly connected to the sixth pipe 6, the first pipe 1 is fixedly connected to the seventh pipe 7, the second pipe 2 is fixedly connected to the eighth pipe 8, the seventh pipe 7 is fixedly connected to the top of the outer shell 16 of the muffle furnace 10, the eighth pipe 8 is fixedly connected to the bottom of the outer shell 16 of the muffle furnace 10, and the other end of the sixth pipe 6 is fixedly connected to the inlet of the heat recovery assembly 15.

[0061] Example 2

[0062] The muffle furnace 10 provided in this embodiment includes the muffle furnace cooling mechanism provided in Embodiment 1. When in use, the muffle furnace cooling mechanism opens the first valve 11 and the fourth valve 14, closes the third valve 13 and the second valve 12, and the air from the blower 9 is blown into the third pipe 3, then through the first valve 11 into the first pipe 1, then into the top of the muffle furnace 10, and subsequently into the second pipe 2 from the bottom of the muffle furnace 10, and then out through the fourth valve 14, thus achieving cooling of the muffle furnace 10 from top to bottom. Alternatively, opening the second valve 12 and the third valve 13, closing the first valve 11 and the fourth valve 14, allows the air from the blower 9 to be blown into the third pipe 3, then through the second valve 12 into the second pipe 2, then into the bottom of the muffle furnace 10, and subsequently into the first pipe 1 from the top of the muffle furnace 10, and then out through the third valve 13, thus achieving cooling of the muffle furnace 10 from bottom to top. When the muffle furnace 10 is cooled by the muffle furnace cooling mechanism, by controlling the opening and closing of the first valve 11, the second valve 12, the third valve 13 and the fourth valve 14, the muffle furnace 10 can be cooled from top to bottom and from bottom to top alternately, so that the internal temperature of the muffle furnace 10 is more uniform and the uniformity of cooling of the muffle furnace 10 is improved.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling mechanism for a muffle furnace, characterized in that, Includes blower (9) and piping assembly; The pipe assembly includes a first pipe (1), a second pipe (2), and a third pipe (3); The first pipe (1) is used to be disposed above the muffle furnace (10), and the first pipe (1) is connected to the top of the muffle furnace (10); The second pipe (2) is used to be installed below the muffle furnace (10), and the second pipe (2) is connected to the bottom of the muffle furnace (10); One end of the third pipe (3) is connected to the middle of the first pipe (1), and the other end of the third pipe (3) is connected to the middle of the second pipe (2); a first valve (11) is provided at the end of the third pipe (3) near the first pipe (1), and a second valve (12) is provided at the end of the third pipe (3) near the second pipe (2); the blower (9) is connected to the third pipe (3); The first pipe (1) is provided with a third valve (13) at the end away from the muffle furnace (10), and the second pipe (2) is provided with a fourth valve (14) at the end away from the muffle furnace (10).

2. The muffle furnace cooling mechanism according to claim 1, characterized in that, The muffle furnace cooling mechanism also includes a controller. The first valve (11), the second valve (12), the third valve (13), and the fourth valve (14) are respectively connected to the controller. The controller can control the opening and closing of the first valve (11), the second valve (12), the third valve (13), and the fourth valve (14) respectively.

3. The muffle furnace cooling mechanism according to claim 1, characterized in that, The muffle furnace cooling mechanism also includes a fourth pipe (4); One end of the fourth pipe (4) is connected to the blower (9), and the other end of the fourth pipe (4) is connected to the third pipe (3). The other end of the fourth pipe (4) is located between the first valve (11) and the second valve (12).

4. The muffle furnace cooling mechanism according to claim 1, characterized in that, The muffle furnace cooling mechanism also includes a fifth pipe (5) and a sixth pipe (6); One end of the fifth pipe (5) is connected to the end of the first pipe (1) away from the muffle furnace (10), and the other end of the fifth pipe (5) is connected to the end of the second pipe (2) away from the muffle furnace (10); One end of the sixth pipe (6) is connected to the fifth pipe (5).

5. The muffle furnace cooling mechanism according to claim 4, characterized in that, The muffle furnace cooling mechanism also includes a heat recovery component (15); one end of the sixth pipe (6) is connected to the heat recovery component (15).

6. The muffle furnace cooling mechanism according to claim 1, characterized in that, The first pipe (1) is connected to the top of the muffle furnace (10) via a seventh pipe (7).

7. The muffle furnace cooling mechanism according to claim 6, characterized in that, There are multiple seventh pipes (7), and the multiple seventh pipes (7) are arranged at intervals along the axial direction of the first pipe (1).

8. The muffle furnace cooling mechanism according to claim 1, characterized in that, The second pipe (2) is connected to the bottom of the muffle furnace (10) via the eighth pipe (8).

9. The muffle furnace cooling mechanism according to claim 8, characterized in that, There are multiple eighth pipes (8), and the multiple eighth pipes (8) are arranged at intervals along the axial direction of the second pipe (2).

10. A muffle furnace, characterized in that, The muffle furnace cooling mechanism includes any one of claims 1-9.

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