Integrated box-type furnace capable of independently controlling multiple atmospheres

Abstract

The utility model provides a multi-atmosphere independent control integrated box-type furnace, which comprises a vertical frame, a plurality of mutually independent firing box-type furnaces are arranged on the vertical frame, and a heating unit is arranged in a cavity of each box-type furnace; a smoke exhaust pipe is independently led out of a cavity of each box-type furnace; a gas inlet unit with a gas cavity is arranged at the bottom of the chamber of each box-type furnace, and is provided with a plurality of gas outlets and gas inlets which are led out from the gas cavity and are respectively communicated with the chamber of the box-type furnace and at least one group of preset atmosphere main pipes; any box-type furnace correspondingly controls synchronous opening and closing of the heating unit, the smoke exhaust pipe and the air inlet according to the firing requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace structure, and more specifically to an integrated box-type furnace with multiple atmospheres independently controlled. Background Art

[0002] Most of the current box-type furnaces are single-cavity, multi-layered monomer structures, such as the furnace structure disclosed in the patent "CN103299148B, multi-layer box-type furnace", which has only a single-cavity structure inside, and the layers are interconnected, so that the entire cavity can only be a firing environment with a single temperature and a single atmosphere. For firing comparison experiments that require different reaction adjustments, multiple box-type furnaces and multiple matching lines and pipelines are required to serve as fuel or gas input and flue gas output channels, and more production space is occupied. When small-volume / batch products of the same or different types need to be tested or fired at the same time, multiple split box-type furnaces are required for firing, which causes inconvenience to production or testing. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is to provide an integrated box-type furnace with independently controlled multi-atmospheres, which has a compact multi-chamber structure that does not affect each other.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an integrated box-type furnace with independent control of multiple atmospheres, comprising a vertical frame, on which are arranged a plurality of box-type furnaces for independent firing, wherein a heating unit is arranged in the chamber of each of the box-type furnaces; a smoke exhaust pipe is independently led out of the chamber of each of the box-type furnaces; an air intake unit with an air cavity is arranged at the bottom of the chamber of each of the box-type furnaces, and the air intake unit is provided with a plurality of air outlets and air inlets led out of the air cavity and respectively connected with the chamber of the box-type furnace and at least one set of preset atmosphere main pipes, and any one of the box-type furnaces controls the synchronous opening and closing of the heating unit, the smoke exhaust pipe and the air inlet according to the firing requirements.

[0005] Furthermore, the smoke exhaust pipes of each box-type furnace on the top layer of the vertical frame are led out from the top surface of the chamber to be discharged straight upwards.

[0006] Furthermore, the smoke exhaust pipes of the remaining box-type furnaces of the vertical frame are led out from the back of the chamber to be discharged backward and then upward.

[0007] Furthermore, each of the box-type furnaces is divided into at least two layers and each layer has at least two box-type furnaces.

[0008] Furthermore, it includes two groups of atmosphere main pipes with different atmosphere gas sources, and the air inlet of each of the air inlet units is respectively bypass-connected to the two groups of atmosphere main pipes through two air inlet branches, and the opening of the two air inlet branches corresponding to the same air inlet is independently controlled to correspondingly adjust the atmosphere state in the chamber of the box-type furnace.

[0009] Furthermore, the air intake unit is composed of two parallel first square tubes and a second square tube vertically connected between the two first square tubes, wherein the inner cavities of the first square tube and the second square tube are connected to form an air cavity of the air intake unit.

[0010] Furthermore, the heating unit is a plurality of heating rods arranged transversely in the chamber.

[0011] Furthermore, each of the smoke exhaust pipes is provided with a smoke exhaust regulating valve.

[0012] Furthermore, each box-type furnace includes a furnace body with an opening on one side and a furnace door that can be opened and closed independently by flipping, wherein the inner side wall of the furnace door is convexly molded with a sealing edge that is embedded in the furnace body.

[0013] Furthermore, the furnace doors of each of the box-type furnaces are located on the same side of the vertical frame.

[0014] The utility model adopts the above solution, and its beneficial effects are:

[0015] 1. High safety: Since each chamber of the box-type furnace has an independent exhaust pipe and the exhaust pipe is wrapped in a vertical frame, the high-temperature exhaust pipe is avoided from being exposed to the outside, reducing the risk of accidental burns.

[0016] 2. Independent control: The atmosphere state of each box furnace is independently controlled. The opening of the air inlet branch pipe can be adjusted according to actual needs to deliver gases from different atmosphere sources into the chamber to meet the firing requirements of different test products in different atmospheres or temperature fields.

[0017] 3. High efficiency and energy saving: By independently controlling the synchronous opening and closing of the heating unit, exhaust pipe and air inlet, each box furnace can apply different temperatures and atmosphere states according to the firing requirements, thereby improving the test efficiency and reducing energy consumption.

[0018] 4. Compact structure: compact structure, small footprint, easy to install and maintain.

[0019] 5. Strong versatility: It can be adjusted and configured according to different test requirements and is suitable for a variety of industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of an integrated box furnace.

[0021] Figure 2It is a structural schematic diagram of a box-type furnace and an exhaust pipe.

[0022] Figure 3 This is a schematic diagram of the back of a box furnace.

[0023] Figure 4 This is a schematic diagram of the back of a box furnace.

[0024] Figure 5 It is a schematic diagram of the structure of the air intake unit.

[0025] Among them, 1-vertical frame, 2-box furnace, 3-smoke exhaust pipe, 31-smoke exhaust regulating valve, 4-air intake unit, 41-first square pipe, 42-second square pipe, 43-air inlet, 44-air outlet, 45-air inlet branch pipe, 5-heating unit, 6-atmosphere main pipe. DETAILED DESCRIPTION

[0026] The following is a more detailed description of the specific implementation of the present application in conjunction with the accompanying drawings and examples, so that the scheme of the present application and its advantages in various aspects can be better understood. However, the specific implementation and examples described below are only for the purpose of illustration, and are not intended to limit the present application.

[0027] See attached Figure 1-5 As shown, in this embodiment, an integrated box-type furnace with multiple atmospheres independently controlled comprises a vertical frame 1, and a plurality of box-type furnaces 2 arranged on the vertical frame 1 for independent firing, wherein each of the box-type furnaces 2 is divided into at least two layers and each layer has at least two box-type furnaces 2, and the attached Figure 2-4 Taking the four box-type furnaces 2 shown as an example, there are two layers, upper and lower, with two box-type furnaces 2 on each layer, and each box-type furnace 2 is used to fire test products separately without affecting each other's use.

[0028] In this embodiment, each box-type furnace 2 includes a furnace body with a single-sided opening and a furnace door that can be independently turned over and opened and closed, wherein the inner side wall of the furnace door is convexly formed with a sealing edge embedded in the furnace body, and the outer periphery of the sealing edge can be wrapped with sealing cotton for heat preservation and heat insulation. The furnace doors of each box-type furnace 2 are all located on the same side of the vertical frame 1, which is more convenient for operators to open and close the furnace doors to take and place test products. The other five end faces of the furnace body of the box-type furnace 2 except the side where the furnace door is located are all closed faces. Secondly, a heating unit 5 is provided in the chamber of each box-type furnace 2 for heating the test products in the chamber. The chamber of each box-type furnace 2 is independently led out with a smoke exhaust pipe 3 for exhausting the exhaust gas in the chamber. Specifically, the smoke exhaust pipes 3 of each box-type furnace 2 on the top layer of the vertical frame 1 are led out from the top surface of the chamber and discharged straight upward, and the smoke exhaust pipes 3 of the remaining box-type furnaces 2 on the vertical frame 1 are led out from the back of the chamber and discharged backward and then upward, wherein the smoke exhaust pipe 3 led out of the box-type furnace 2 located on the lower layer first extends horizontally backward and then extends vertically upward, so that the smoke exhaust pipes 3 led out of the box-type furnace 2 on the upper layer and the box-type furnace 2 on the lower layer both vertically pass through the top of the vertical frame 1. Therefore, the smoke exhaust pipes 3 are all wrapped in the vertical frame 1, which is not only beautiful but also avoids the risk of accidental burns caused by the high-temperature exhaust pipes exposed to the outside.

[0029] Furthermore, each smoke exhaust pipe 3 of the present embodiment is provided with a smoke exhaust regulating valve 31 so as to control the opening of the smoke exhaust regulating valve 31 according to the furnace pressure of the box-type furnace 2 (the furnace pressure here can be monitored and obtained by means of a pressure sensor preset in the chamber, which is a conventional monitoring element and its principle will not be further explained here), thereby achieving the purpose of accurately controlling the furnace pressure.

[0030] In the present embodiment, an air intake unit 4 having an air cavity is provided at the bottom of the chamber of each box-type furnace 2, and the air intake unit 4 is provided with an air outlet 44 and an air intake 43 which are led out from the air cavity and are respectively connected to the chamber of the box-type furnace 2 and at least one set of preset atmosphere main pipes 6, wherein the structure of the air intake unit 4 is composed of two parallel first square tubes 41 and a second square tube 42 vertically connected between the two first square tubes 41, and the inner cavities of the first square tubes 41 and the second square tubes 42 are connected to form the air cavity of the air intake unit 4; the air intake unit 4 preferably has a plurality of air outlets 44, each of which is led out from the air cavity of the air intake unit 4 and passes through the top surfaces of the first square tubes 41 and the second square tubes 42 and extends into the chamber of the box-type furnace 2. Since the gas will rise at high temperature, when the chamber of the box-type furnace 2 is heated and fired, the gas atmosphere ejected from the bottom of the chamber by each air outlet 44 will rise to the surroundings of the test product.

[0031] Furthermore, the number of atmosphere main pipes 6 can be set according to the gas atmosphere actually required. For ease of understanding, further explanation is given below in conjunction with specific embodiments. Specifically, it includes two groups of atmosphere main pipes 6 with different atmosphere sources (such as pure oxygen or pure air), and the air inlet 43 of each air inlet unit 4 is respectively connected to the two groups of atmosphere main pipes 6 through two air inlet branches 45, that is, one end of the two air inlet branches 45 converges and is connected to the air inlet 43, and the other end of the two air inlet branches 45 is respectively connected to the two atmosphere main pipes 6 through bypass, and the two air inlet branches 45 can be additionally provided with filters, pressure regulating valves, rotary switches and other components to realize independent control of the opening and on-off, thereby, the opening of the two air inlet branches 45 corresponding to the same air inlet 43 is independently controlled to correspond to the atmosphere state in the chamber of the box-type furnace 2, that is: according to actual needs, the on-off and opening of the air inlet branch 45 are opened to realize that the gas from different atmosphere sources is sent from the atmosphere main pipe 6 in the air inlet branch 45 into the chamber at different flow rates in turn through the air inlet 43, the air cavity, and the air outlet 44, thereby realizing independent control of the atmosphere state of each box-type furnace 2.

[0032] Therefore, the heating unit 5 of any box-type furnace 2 controls the synchronous opening and closing of the heating unit 5, the smoke exhaust pipe 3 and the air inlet 43 according to the firing requirements, that is, any box-type furnace 2 can obtain different production test environments by applying different temperatures and different atmosphere states. The box-type furnaces 2 do not affect each other, and in particular, can meet the firing effects of the same test product in different atmospheres or different temperature fields, which can be used for timely comparison and analysis, effectively improving work efficiency.

[0033] Each box-type furnace 2 of the present embodiment can be a pre-prepared integrated structure, and then each air intake unit 4, furnace door, heating unit 5 and other components are pre-assembled on each box-type furnace 2, and then each box-type furnace 2 of the integrated structure is integrally embedded in the vertical frame 1, and finally each smoke exhaust pipe 3 is respectively connected and installed to each box-type furnace 2 and linked to the air intake unit 4 and the atmosphere main pipe 6 through the air intake branch pipe 45. This method optimizes and improves the difficulty of assembly, and adopts an integrated overall structure, which is conducive to improving the stability of the equipment.

[0034] In practical applications, the integrated box furnace 2 of this embodiment can be further improved and optimized according to specific needs. For example, more types of atmosphere main pipes 6 can be added to meet more test needs; automatic control elements can be added to the air intake unit 4 to achieve more accurate atmosphere control; in addition, the heating unit 5 can be optimized to improve heating efficiency and reduce energy consumption.

[0035] In summary, the integrated box-type furnace with independent multi-atmosphere control in this embodiment has high safety, independent controllability, high energy efficiency and versatility, provides a good test environment for various tests, improves test efficiency and reduces test costs.

[0036] It is to be understood that the present application is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope protected by the present application.

Claims

1. An integrated box-type furnace with independent control of multiple atmospheres, comprising a vertical frame (1), characterized in that: The vertical frame (1) is provided with a plurality of box-type furnaces (2) for independent firing, wherein a heating unit (5) is provided in the chamber of each box-type furnace (2); a smoke exhaust pipe (3) is independently led out of the chamber of each box-type furnace (2); an air intake unit (4) having an air cavity is provided at the bottom of the chamber of each box-type furnace (2), and the air intake unit (4) is provided with a plurality of air outlets (44) and air intakes (43) led out of the air cavity and respectively connected to the chamber of the box-type furnace (2) and at least one set of preset atmosphere main pipes (6); any one of the box-type furnaces (2) controls the synchronous opening and closing of the heating unit (5), the smoke exhaust pipe (3) and the air intake (43) according to firing requirements.

2. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 1, characterized in that: The smoke exhaust pipes (3) of each box-type furnace (2) on the top layer of the vertical frame (1) are led out from the top surface of the chamber to be discharged straight upwards.

3. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 2, characterized in that: The smoke exhaust pipes (3) of the remaining box-type furnaces (2) of the vertical frame (1) are led out from the back of the chamber to the rear and then to the upper side.

4. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 1, characterized in that: Each of the box-type furnaces (2) is divided into at least two layers, and each layer has at least two box-type furnaces (2).

5. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 1, characterized in that: It comprises two groups of atmosphere main pipes (6) with different atmosphere gas sources, the air inlet (43) of each of the air inlet units (4) is respectively connected to the two groups of atmosphere main pipes (6) through two air inlet branch pipes (45), and the atmosphere state in the chamber of the box-type furnace (2) is correspondingly regulated by independently controlling the opening of the two air inlet branch pipes (45) corresponding to the same air inlet (43).

6. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 1, characterized in that: The air intake unit (4) is composed of two parallel first square tubes (41) and a second square tube (42) vertically connected between the two first square tubes (41), wherein the inner cavities of the first square tube (41) and the second square tube (42) are connected to form an air cavity of the air intake unit (4).

7. The integrated box-type furnace with independent multi-atmosphere control according to claim 1, characterized in that: The heating unit (5) is a plurality of heating rods arranged transversely in the chamber.

8. The integrated box-type furnace with independent multi-atmosphere control according to claim 1, characterized in that: Each of the smoke exhaust pipes (3) is provided with a smoke exhaust regulating valve (31).

9. The integrated box-type furnace with multiple atmospheres independently controlled according to claim 1, characterized in that: Each box-type furnace (2) comprises a furnace body with an opening on one side and a furnace door that can be independently flipped open and closed, wherein the inner side wall of the furnace door is convexly molded with a sealing edge that is embedded in the furnace body.

10. The integrated box-type furnace with multiple independently controlled atmospheres according to claim 9, characterized in that: The furnace doors of each of the box-type furnaces (2) are located on the same side of the vertical frame (1).

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