Automatic cooling device of box-type furnace

Abstract

The utility model provides an automatic cooling device of a box-type furnace, which comprises a box-type furnace body and a cooling device, the cooling device is connected with the box-type furnace body, a thermal insulation partition plate is arranged on the connecting surface of the box-type furnace body and the cooling device, the thermal insulation partition plate is divided into a first partition plate and a second partition plate, the first partition plate and the second partition plate relatively move under the action of the driving part so as to be switched between a first relative position and a second relative position; when the first partition plate and the second partition plate are located at the first relative position, the through holes of the first partition plate and the second partition plate coincide, and the box-type furnace body communicates with the cooling device through the through holes. When the first partition plate and the second partition plate are located at the second relative position, the through holes of the first partition plate and the second partition plate are staggered; the signal input end of the driving part is connected with the signal output end of the controller; and a cooling module is arranged in the cooling device.

Description

Technical Field

[0001] The utility model relates to the field of box-type sintering furnaces, in particular to an automatic cooling device for box-type furnaces. Background Art

[0002] Box furnaces are mainly used for mass production in scientific research institutes and small and medium-sized factories. They heat and insulate the atmosphere in the box through electric heating. They are used in high-temperature calcination of metal materials and ceramic materials, and drying pretreatment of small steels. Most of the current box furnaces use passive cooling, which is achieved by continuously introducing gas to bring out the hot air. This cooling method is very slow, time-consuming, and has high gas costs. In order to improve production efficiency and reduce the cost of use, it is necessary to speed up the cooling of the box furnace. Utility Model Content

[0003] The utility model provides an automatic cooling device for a box-type furnace, which can automatically dissipate heat when the equipment needs to dissipate heat, accelerate the cooling speed, improve the cooling efficiency, is easy to operate, and provides a hardware basis for automatically controlling heat dissipation without manual operation.

[0004] In order to solve the above technical problems, the utility model provides an automatic cooling device for a box-type furnace, comprising a box-type furnace body and a cooling device, wherein the cooling device is connected to the box-type furnace body, and a heat-insulating partition is arranged on the connection surface between the box-type furnace body and the cooling device, wherein the heat-insulating partition is divided into a first partition and a second partition, and the first partition and the second partition are relatively moved by a driving member to switch between a first relative position and a second relative position;

[0005] When the first partition plate and the second partition plate are located at a first relative position, the through holes of the first partition plate and the second partition plate overlap, and the box-type furnace body and the cooling device are connected through the through holes; when the first partition plate and the second partition plate are located at a second relative position, the through holes of the first partition plate and the second partition plate are staggered; the signal input end of the driving member is connected to the signal output end of the controller; a cooling module is arranged in the cooling device.

[0006] In some embodiments, the cooling device includes a heat pipe as a cooling module, and the heat pipe is filled with a heat dissipation medium.

[0007] In some of the embodiments, a plurality of the heat pipes are included, and the plurality of the heat pipes are arranged perpendicular to the box-type furnace body to form an array arrangement.

[0008] In some embodiments, the heat pipe is divided into a first part and a second part, the second part connects two ends of the first part and is perpendicular to the first part; the first part is embedded in the heat conductive plate on the top of the box-type furnace body, and the end of the second part not connected to the first part is connected to the top plate.

[0009] In some of the embodiments, heat dissipation fins are disposed outside the second portion of the plurality of heat pipes.

[0010] In some of the embodiments, a cooling fan is installed outside the cooling fins.

[0011] In some embodiments, the sides of the first partition and the second partition are connected by a connecting member, the connecting member is rotatably connected to the first partition and the second partition, the second partition is fixed to the box-type furnace body, and the first partition rotates relative to the connecting member under the action of the driving member so that the first partition and the second partition switch between the first relative position and the second relative position.

[0012] In some of the embodiments, a temperature measuring probe is disposed inside the box-type furnace body, and the probe is connected to a signal input terminal of a controller.

[0013] In some embodiments, the first partition and the second partition are made of heat insulating materials.

[0014] In some embodiments, the heat dissipation medium is liquid metal or liquid alloy.

[0015] Compared with the prior art, the utility model has the beneficial effect that a first partition and a second partition with through holes are arranged on the connecting surface of the box-type furnace body and the cooling device. The first partition and the second partition can automatically move relative to each other under the action of the controller and the driving member so as to align the through holes for heat dissipation or stagger the through holes for heat preservation of the box-type furnace. Compared with the traditional manual cooling method of ventilation and heat dissipation in the box-type furnace, the cooling speed and cooling efficiency are improved, and the hardware foundation is provided for automatic control of heat dissipation without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the thermal insulation partition of the utility model in a closed state.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the thermal insulation partition of the utility model in the open state.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the cooling module of the utility model.

[0021] 1. Box-type furnace body; 2. Gas flow meter; 3. Temperature probe; 4. Heat dissipation fins; 5. Heat dissipation fan; 6. Heat pipe; 7. Second partition; 8. First partition; 9. Connector; 10. Through hole; 11. Metal heat conduction plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0025] Reference Figure 1-Figure 5 The utility model provides an automatic cooling device for a box-type furnace, comprising a box-type furnace body 1 and a cooling device. Two temperature measuring probes 3 are arranged on the inner wall of the box-type furnace body 1. The temperature measuring probes 3 are used to monitor the temperature inside the box-type furnace body 1 in real time and are connected to the signal of the controller input end. A gas flow meter 2 is arranged at the bottom of the box-type furnace body 1.

[0026] A cooling device is connected to the top of the box-type furnace body 1, and an insulating partition is arranged between the cooling device and the box-type furnace body 1. The insulating partition is double-layered and includes a first partition 8 and a second partition 7. The first partition 8 and the second partition 7 are both made of heat-insulating materials such as glass wool; the first partition 8 and the second partition 7 are both provided with array-arranged through holes 10, and the first partition 8 and the second partition 7 are acted upon by a driving member to move relative to each other so as to switch between a first relative position and a second relative position.

[0027] Specifically, the sides of the first partition 8 and the second partition 7 are connected by a connecting member 9, the connecting member 9 is rotatably connected to the first partition 8 and the second partition 7, the second partition 7 is fixed to the box-type furnace body, and the first partition 8 rotates relative to the connecting member 9 under the action of the driving member so that the first partition 8 and the second partition 7 switch between the first relative position and the second relative position.

[0028] When the first partition 8 and the second partition 7 are in the first relative position, the through holes 10 of the first partition 8 and the second partition 7 overlap, and the box-type furnace body 1 and the cooling device are connected through the through hole 10. At this time, the heat preservation partition is in an open state, and the hot air inside the box-type furnace will enter the cooling device through the through hole 10 for cooling. The cooled gas re-enters the furnace cavity of the box-type furnace through the through hole 10 due to thermal expansion and contraction, thereby cooling the furnace cavity of the box-type furnace. When the first partition 8 and the second partition 7 are in the second relative position, the through holes 10 of the first partition 8 and the second partition 7 are staggered, so that the heat preservation partition is in a closed state. At this time, the gas in the box-type furnace cannot escape into the cooling device, which can reduce heat loss and play a role in heat preservation.

[0029] In order to realize automatic cooling of the box furnace, in this embodiment, the relative movement between the first partition 8 and the second partition 7 does not require manual operation, but is driven by a driver, and the driver is started by a controller, the signal input end of the driver is connected to the signal output end of the controller, the controller outputs a start signal to the driver, and the driver drives the relative movement between the first partition 8 and the second partition 7. And the controller controls the start of the driver according to the furnace temperature monitored by the temperature measuring probe 3.

[0030] The user sets the temperature when cooling is required. When the temperature rise curve in the furnace detected by the temperature measuring probe 3 reaches the cooling step, the controller automatically controls the driving member to start. The driving member drives the connecting member 9 to drive the first partition 8 to move upward relative to the second partition 7 to a first relative position where the through hole 10 coincides. At this time, the hot air in the furnace will escape from the box-type furnace into the cooling device through the through hole 10. After being cooled by the cooling device, the gas re-enters the furnace cavity through the through hole 10 due to thermal expansion and contraction. After a period of hot air and cold air exchange, the temperature in the furnace is reduced, and the cooling effect is achieved.

[0031] When cooling is completed and the box furnace needs to be used again, the controller controls the driving member to drive the connecting member to drive the first partition 8 to shift downward relative to the second partition 7 to a closed state in which the through holes 10 are staggered. At this time, the gas in the furnace cannot escape from the through holes 10, which keeps the box furnace warm and allows sintering.

[0032] In this embodiment, the cooling device is provided with a plurality of heat pipes 6 as cooling modules, and the heat pipes 6 are filled with heat dissipation medium. The plurality of heat pipes 6 are arranged perpendicular to the box-type furnace body 1 to form an array arrangement. Specifically, the heat pipe 6 is divided into a first part and a second part, and the second part connects the two ends of the first part and is perpendicular to the first part; the first part is embedded in the metal heat conducting plate 11 on the top of the box-type furnace body 1, and the metal heat conducting plate 11 can increase the contact area with the hot air in the furnace. The end of the second part that is not connected to the first part is connected to the top plate of the cooling module, and the second part is used to provide space for the heat dissipation medium to vaporize. When the hot air in the furnace enters the cooling device through the through hole 10, the heat is transferred to the first part of the heat pipe 6 through the metal heat conducting plate, and the heat dissipation medium in the first part vaporizes and reaches the second part. The gasification absorbs heat, causing the temperature in the furnace to drop, thereby achieving rapid cooling.

[0033] When the common sintering temperature reaches above 600 degrees Celsius, the heat dissipation medium in the heat pipe 6 uses liquid sodium-potassium alloy. When the common sintering temperature does not reach 600 degrees Celsius, the heat dissipation medium uses liquid metal mercury.

[0034] In order to avoid the deterioration of the heat dissipation effect due to the excessive heat dissipation time, the reflux of the heat dissipation medium in the heat pipe 6 is accelerated to improve the heat dissipation efficiency. In this embodiment, a heat dissipation fin 4 is arranged outside the second part of the plurality of heat pipes 6, and a heat dissipation fan 5 is installed outside the heat dissipation fin 4. When the heat is transferred to the heat dissipation medium in the heat pipe 6 through the metal heat conduction plate to gasify it, the heat dissipation medium transfers the heat to the air through the heat dissipation fin 4, and re-liquefies and flows back to the first part of the heat pipe 6 embedded in the metal heat conduction plate 11. At the same time, the heat dissipation fan 5 takes away the hot air in the air and brings in the unheated air, further accelerating the liquefaction and reflux of the heat dissipation medium. After the heat dissipation and reflux, the heat dissipation medium can participate in the heat dissipation process again, thereby maintaining a good heat dissipation effect.

[0035] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. An automatic cooling device for a box-type furnace, comprising a box-type furnace body and a cooling device, wherein the cooling device is connected to the box-type furnace body, and is characterized in that: A heat-insulating partition is arranged on the connection surface between the box-type furnace body and the cooling device, and the heat-insulating partition is divided into a first partition and a second partition. The first partition and the second partition move relative to each other under the action of the driving member to switch between a first relative position and a second relative position; When the first partition plate and the second partition plate are located at a first relative position, the through holes of the first partition plate and the second partition plate overlap, and the box-type furnace body and the cooling device are connected through the through holes; when the first partition plate and the second partition plate are located at a second relative position, the through holes of the first partition plate and the second partition plate are staggered; the signal input end of the driving member is connected to the signal output end of the controller; a cooling module is arranged in the cooling device.

2. The automatic cooling device for a box-type furnace according to claim 1, characterized in that: The cooling device comprises a heat pipe as a cooling module, and the heat pipe is filled with a heat dissipation medium.

3. The automatic cooling device for a box-type furnace according to claim 2, characterized in that: It comprises a plurality of heat pipes, and the plurality of heat pipes are arranged perpendicularly to the box-type furnace body to form an array arrangement.

4. The automatic cooling device for a box-type furnace according to claim 3, characterized in that: The heat pipe is divided into a first part and a second part, the second part connects two ends of the first part and is perpendicular to the first part; the first part is embedded in the heat conduction plate on the top of the box-type furnace body, and the end of the second part not connected to the first part is connected to the top plate.

5. The automatic cooling device for a box-type furnace according to claim 4, characterized in that: Heat dissipation fins are arranged outside the second parts of the plurality of heat pipes.

6. The automatic cooling device for a box-type furnace according to claim 5, characterized in that: A heat dissipation fan is installed outside the heat dissipation fins.

7. The automatic cooling device for a box-type furnace according to claim 1, characterized in that: The sides of the first partition and the second partition are connected by a connecting piece, the connecting piece is rotatably connected to the first partition and the second partition, the second partition is fixed to the box-type furnace body, and the first partition rotates relative to the connecting piece under the action of the driving member so that the first partition and the second partition switch between the first relative position and the second relative position.

8. The automatic cooling device for a box-type furnace according to claim 1, characterized in that: A temperature measuring probe is arranged inside the box-type furnace body, and the probe is connected to a signal input terminal of a controller.

9. The automatic cooling device for a box-type furnace according to claim 1, characterized in that: The first partition plate and the second partition plate are made of heat insulation material.

10. The automatic cooling device for a box-type furnace according to claim 2, characterized in that: The heat dissipation medium is liquid metal or liquid alloy.

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