Isothermal chamber structure of isothermal normalizing furnace

Abstract

The utility model provides an isothermal chamber structure of an isothermal normalizing furnace, which comprises the isothermal normalizing furnace, an upper air knife and a lower air knife are respectively arranged at the inner top end and the inner bottom end of the isothermal normalizing furnace, an upper air chamber is arranged between the upper air knife and the isothermal normalizing furnace, and a lower air chamber is arranged between the lower air knife and the isothermal normalizing furnace. The upper side of the upper air knife is respectively connected with an upper air cooler I and an upper air cooler II through pipelines, the lower side of the lower air knife is connected with a lower air cooler through a pipeline, and the isothermal normalizing furnace is also fixedly connected with an upper induced draft fan. According to the isothermal normalizing furnace, the upper air knife and the lower air knife are arranged in the isothermal normalizing furnace, the upper air cooler and the lower air cooler are used for supplying air, and the induced draft fan is used for exhausting air, so that quick air cooling of workpieces is realized, air flows in a one-way manner, the air cooling effect of the workpieces is ensured, the air cooling speed of the workpieces is controllable, and the metallographic structure of products is better.

Description

Technical Field

[0001] The utility model relates to the technical field of isothermal normalizing furnaces, in particular to an isothermal chamber structure of an isothermal normalizing furnace. Background Art

[0002] An isothermal normalizing furnace is an industrial furnace specifically designed to perform the isothermal normalizing process. This furnace is able to provide precise temperature control in order to achieve the desired microstructural transformation during the heat treatment of metals. Isothermal normalizing is a heat treatment method in which a material is heated to a certain temperature, held at a specific lower temperature for a period of time, and then cooled. This process is intended to improve the mechanical properties and processing properties of the material.

[0003] In the prior art, when air-cooling a workpiece, a natural cooling method is usually adopted, which has a long cooling time and low efficiency. Utility Model Content

[0004] The utility model aims to provide an isothermal chamber structure of an isothermal normalizing furnace to overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is specifically implemented as follows:

[0006] The utility model provides an isothermal chamber structure of an isothermal normalizing furnace, comprising an isothermal normalizing furnace, wherein an upper air knife and a lower air knife are respectively arranged at the inner top and the inner bottom of the isothermal normalizing furnace, and an upper air chamber is arranged between the upper air knife and the isothermal normalizing furnace, and a lower air chamber is arranged between the lower air knife and the isothermal normalizing furnace, the upper side of the upper air knife is respectively connected to an upper cooling air fan 1 and an upper cooling air fan 2 through a pipeline, the lower side of the lower air knife is connected to the lower cooling air fan through a pipeline, and an upper induced draft fan is also fixedly connected to the isothermal normalizing furnace.

[0007] A wind shield curtain is fixedly connected to the outer edge of the lower side of the upper wind knife, and the wind shield curtain is arranged on one side of the upper wind chamber.

[0008] As a further solution of the present invention, the upper cooling air fan 1, the upper cooling air fan 2 and the lower cooling air fan are all electrically connected to the inverter through wires.

[0009] As a further solution of the utility model, an upper airflow cavity is arranged between the upper side of the upper air knife and the isothermal normalizing furnace.

[0010] As a further solution of the utility model, a lower airflow cavity is arranged between the lower side of the lower air knife and the isothermal normalizing furnace.

[0011] As a further solution of the utility model, an induced draft hood is fixedly connected to the upper side of the isothermal normalizing furnace, and the upper side of the induced draft hood is fixedly connected to the upper induced draft fan, and the lower side of the induced draft hood is connected to the upper air chamber and the lower air chamber.

[0012] The utility model provides an isothermal chamber structure of an isothermal normalizing furnace, and its beneficial effects are: by arranging upper and lower air knives inside the isothermal normalizing furnace, and supplying air by upper and lower cooling fans, and exhausting air by induced draft fans, it is ensured that the workpiece is in an isothermal environment, and rapid air cooling of the workpiece is achieved, and the air flow is unidirectional, so the air cooling effect of the workpiece is ensured, the air cooling speed of the workpiece is controllable, the metallographic structure of the product is better, the cooling time of the workpiece is shortened, and the efficiency is improved. The overall sealed structure is adopted, which effectively prevents the workshop from being too hot. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure: 1. Upper cooling fan 1; 2. Upper induced draft fan; 3. Upper cooling fan 2; 4. Upper air chamber; 5. Lower cooling fan; 6. Lower air chamber; 7. Lower air knife; 8. Wind curtain; 9. Upper air knife; 10. Isothermal normalizing furnace. DETAILED DESCRIPTION

[0016] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0017] See also Figure 1 An isothermal chamber structure of an isothermal normalizing furnace provided in an embodiment of the utility model includes an isothermal normalizing furnace 10, an upper air knife 9 and a lower air knife 7 are respectively arranged at the inner top and the inner bottom of the isothermal normalizing furnace 10, and an upper air chamber 4 is arranged between the upper air knife 9 and the isothermal normalizing furnace 10, and a lower air chamber 6 is arranged between the lower air knife 7 and the isothermal normalizing furnace 10, the upper side of the upper air knife 9 is connected to the upper cooling air fan 1 and the upper cooling air fan 2 3 through pipelines, the lower side of the lower air knife 7 is connected to the lower cooling air fan 5 through a pipeline, and an upper induced draft fan 2 is also fixedly connected to the isothermal normalizing furnace 10.

[0018] A windshield curtain 8 is also fixedly connected to the outer edge of the lower side of the upper wind knife 9, and the windshield curtain 8 is arranged on one side of the upper wind chamber 4. The design of the windshield curtain 8 is convenient for shielding one side of the upper wind chamber 4 from wind, so that the air in the upper wind chamber 4 can flow to the right.

[0019] The upper cooling fan 1, the upper cooling fan 2, the upper cooling fan 3 and the lower cooling fan 5 are all electrically connected to the frequency converter through wires. The frequency converter can control the operation of the upper cooling fan 1, the upper cooling fan 2, the upper cooling fan 3 and the lower cooling fan 5, thereby controlling the air volume.

[0020] An upper airflow cavity is arranged between the upper side of the upper air knife 9 and the isothermal normalizing furnace 10. The design of the upper airflow cavity facilitates the cold air delivered by the upper cooling air fan 1 and the upper cooling air fan 2 3 to enter the upper airflow cavity and enter the upper air chamber 4 through the upper air knife 9.

[0021] A lower airflow cavity is provided between the lower side of the lower air knife 7 and the isothermal normalizing furnace 10 . The design of the lower airflow cavity facilitates the cold air delivered by the lower cooling fan 5 to enter the lower airflow cavity and enter the lower air chamber 6 through the lower air knife 7 .

[0022] The upper side of the isothermal normalizing furnace 10 is fixedly connected with an induced draft hood, and the upper side of the induced draft hood is fixedly connected to the upper induced draft fan 2, and the lower side of the induced draft hood is connected to the upper air chamber 4 and the lower air chamber 6, so that the air can be discharged from the isothermal normalizing furnace 10 through the induced draft hood and the air can flow in one direction.

[0023] During use of the utility model, the isothermal normalizing furnace 10 heats the workpiece to 900 degrees through the heating furnace, and then the workpiece needs to be rapidly cooled; at this time, the cold air is sent into the upper air flow cavity through the operation of the upper cooling fan 1 and the upper cooling fan 2 3, and then enters the upper air chamber 4 through the upper air knife 9. At the same time, the operation of the lower cooling fan 5 sends the cold air into the lower air flow cavity, and enters the lower air chamber 6 through the lower air knife 7, so as to blow the upper and lower surfaces of the workpiece, thereby realizing rapid air cooling of the workpiece. At the same time, the upper cooling fan 1, the upper cooling fan 2 3 and the lower cooling fan 5 adjust the speed of the air flow through the frequency converter to control the size of the air volume, and then the upper induced draft fan 2 draws the air blown by the upper and lower cooling fans 5 from the upper air chamber 4 and the lower air chamber 6 to the outside. By designing the upper air knife 9 and the lower air knife 7 in the isothermal normalizing furnace 10, the overall sealed structure is realized, which can effectively prevent the workshop from being too hot, the air cooling speed of the workpiece is controllable, and the metallographic structure of the product is better.

[0024] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An isothermal chamber structure of an isothermal normalizing furnace, comprising an isothermal normalizing furnace (10), characterized in that: The upper top and lower bottom of the isothermal normalizing furnace (10) are respectively provided with an upper air knife (9) and a lower air knife (7), and an upper air chamber (4) is provided between the upper air knife (9) and the isothermal normalizing furnace (10), and a lower air chamber (6) is provided between the lower air knife (7) and the isothermal normalizing furnace (10). The upper side of the upper air knife (9) is connected to the upper cooling fan 1 (1) and the upper cooling fan 2 (3) through pipelines, and the lower side of the lower air knife (7) is connected to the lower cooling fan (5) through pipelines. The isothermal normalizing furnace (10) is also fixedly connected to an upper induced draft fan (2); The outer edge of the lower side of the upper wind knife (9) is also fixedly connected to a wind screen (8), and the wind screen (8) is arranged on one side of the upper wind chamber (4).

2. The isothermal chamber structure of an isothermal normalizing furnace according to claim 1, characterized in that: The upper cooling fan 1 (1), the upper cooling fan 2 (3) and the lower cooling fan (5) are all electrically connected to the frequency converter via wires.

3. The isothermal chamber structure of an isothermal normalizing furnace according to claim 1, characterized in that: An upper airflow cavity is arranged between the upper side of the upper air knife (9) and the isothermal normalizing furnace (10).

4. The isothermal chamber structure of an isothermal normalizing furnace according to claim 1, characterized in that: A lower airflow cavity is provided between the lower side of the lower air knife (7) and the isothermal normalizing furnace (10).

5. The isothermal chamber structure of an isothermal normalizing furnace according to claim 1, characterized in that: The upper side of the isothermal normalizing furnace (10) is fixedly connected to an induced draft hood, and the upper side of the induced draft hood is fixedly connected to an upper induced draft fan (2), and the lower side of the induced draft hood is in communication with an upper air chamber (4) and a lower air chamber (6).

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