Efficient nitriding furnace with adjustable cooling water amount

Abstract

The utility model relates to an efficient nitriding furnace with adjustable cooling water quantity, which belongs to the technical field of nitriding furnaces and comprises a nitriding furnace, an integrated cooling jacket is fixedly mounted on the surface of the nitriding furnace, and a multi-stage circulating cooling component is arranged on the integrated cooling jacket. The multi-stage circulating cooling assembly comprises a primary water inlet pipe, an intermediate water inlet pipe and a high-stage water inlet pipe which are fixedly installed on the side, close to the bottom, of the integrated cooling sleeve, and cooling water tanks are fixedly installed at the input ends of the primary water inlet pipe, the intermediate water inlet pipe and the high-stage water inlet pipe. According to the efficient nitriding furnace with the adjustable cooling water amount, the integrated cooling sleeve is arranged on the surface of the nitriding furnace, the surface of the nitriding furnace is completely covered with the integrated cooling sleeve, the cooling contact area is increased, the primary water inlet pipe, the intermediate water inlet pipe and the high-grade water inlet pipe are sequentially opened according to needs, cooling water is injected into the integrated cooling sleeve, and the cooling water amount is adjusted; therefore, cooling effects under different conditions can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of nitriding furnace technology, specifically a high-efficiency nitriding furnace with adjustable cooling water volume. Background Technology

[0002] A nitriding furnace is a heat treatment device with a unique working principle and wide applications. Inside, it contains heating elements such as resistance wires or electromagnetic heaters, which convert electrical energy into heat energy to raise the temperature inside the furnace to the required nitriding temperature. During operation, high-purity nitrogen or other nitrogen-containing gases are introduced into the furnace to create a suitable nitriding atmosphere. Simultaneously, the furnace is equipped with insulation materials and sealing devices to reduce heat loss and maintain a uniform and stable temperature inside. The nitriding furnace introduces high-purity nitrogen into the furnace chamber through a gas supply system for nitriding treatment. Some gaseous products generated after the reaction must be discharged from the furnace chamber through an exhaust system to maintain a clean furnace environment.

[0003] Cooling structures are required during the use of nitriding furnaces. Utility model patent CN215517597U discloses a high-efficiency nitriding furnace with adjustable cooling water volume. The furnace includes a furnace body with a spirally arranged cooling pipe on its outer wall. One side of the cooling pipe is open, and the open side is fixed to the outer wall of the furnace body to form a cooling chamber. Several partition plates are fixedly arranged within the cooling chamber, dividing it into several flow channels. Cooling water can be introduced into one or more flow channels according to actual cooling needs, thus ensuring the cooling effect. The cooling water volume can be adjusted according to actual needs, making it highly versatile and facilitating the control of cooling efficiency based on actual cooling requirements.

[0004] However, the cooling pipe of this high-efficiency nitriding furnace is a semi-tube structure, with the semi-tube coiled around the surface of the nitriding furnace and cooling water flowing through it to cool the furnace. Because the semi-tube is coiled around the surface of the nitriding furnace, the contact area between the semi-tube and the furnace is limited, resulting in poor cooling effect and localized excessively low or high temperatures. Therefore, a high-efficiency nitriding furnace with adjustable cooling water flow is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency nitriding furnace with adjustable cooling water volume. It has advantages such as a larger base area between the cooling water and the nitriding furnace, increasing the uniformity of cooling. It solves the problem that the cooling pipes of common high-efficiency nitriding furnaces are semi-tube structures. Because the semi-tubes are coiled on the surface of the nitriding furnace, the contact area between them and the furnace is limited, resulting in poor cooling effect and localized excessively low or high temperatures.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency nitriding furnace with adjustable cooling water volume includes a nitriding furnace, wherein an integrated cooling jacket is fixedly installed on the surface of the nitriding furnace, and the integrated cooling jacket is provided with a multi-stage circulating cooling assembly.

[0008] The multi-stage circulating cooling assembly includes a primary water inlet pipe, a secondary water inlet pipe, and a senior water inlet pipe, which are fixedly installed on the side of the integrated cooling jacket near the bottom. Cooling water tanks are fixedly installed at the input ends of the primary water inlet pipe, the secondary water inlet pipe, and the senior water inlet pipe. A primary water outlet pipe, a secondary water outlet pipe, and a senior water outlet pipe are fixedly installed on the side of the integrated cooling jacket near the top. The output ends of the primary water outlet pipe, the secondary water outlet pipe, and the senior water outlet pipe are fixedly connected to the top of the cooling water tank.

[0009] Furthermore, a primary water inlet valve is fixedly installed on the surface of the primary water inlet pipe, an intermediate water inlet valve is fixedly installed on the surface of the intermediate water inlet pipe, and an advanced water inlet valve is fixedly installed on the surface of the advanced water inlet pipe.

[0010] Furthermore, a primary water outlet valve is fixedly installed on the surface of the primary water outlet pipe, an intermediate water outlet valve is fixedly installed on the surface of the intermediate water outlet pipe, and an advanced water outlet valve is fixedly installed on the surface of the advanced water outlet pipe.

[0011] Furthermore, a primary circulation pump, an intermediate circulation pump, and a high-level circulation pump are fixedly installed inside the cooling water tank, and the output ends of the primary circulation pump, the intermediate circulation pump, and the high-level circulation pump are fixedly connected to the primary water inlet pipe, the intermediate water inlet pipe, and the high-level water inlet pipe, respectively.

[0012] Furthermore, a cooler is fixedly installed on the inner bottom wall of the cooling water tank, a water supply pipe is fixedly installed on the top of the cooling water tank, and a drain pipe is fixedly installed on one side of the cooling water tank.

[0013] Furthermore, an insulating shell is fixedly installed on the surface of the nitriding furnace, an integrated cooling jacket is located between the nitriding furnace and the insulating shell, a connecting top plate is fixedly installed on the top of the nitriding furnace, a sealing top cover is provided on the top of the connecting top plate, and an air inlet pipe and an exhaust pipe are fixedly installed on the top of the sealing top cover.

[0014] Furthermore, an installation side plate is fixedly installed on one side of the heat insulation shell, a hydraulic cylinder is fixedly installed on the top of the installation side plate, a rotating support rod is rotatably installed on the movable end of the hydraulic cylinder, a connecting horizontal plate is fixedly installed on the top of the rotating support rod, a connecting plate is fixedly installed on the bottom of the connecting horizontal plate, and the bottom of the connecting plate is fixedly connected to the sealing top cover.

[0015] Furthermore, a temperature sensor is fixedly installed inside the integrated cooling jacket, and a control panel is fixedly installed on the surface of the cooling water tank.

[0016] Compared with the prior art, this utility model provides a high-efficiency nitriding furnace with adjustable cooling water volume, which has the following beneficial effects:

[0017] This high-efficiency nitriding furnace with adjustable cooling water volume features an integrated cooling jacket that fully covers the furnace surface, increasing the cooling contact area. Cooling water is injected into the integrated cooling jacket by sequentially opening the primary, intermediate, and advanced water inlet pipes as needed, adjusting the cooling water volume to suit different cooling conditions. This solves the problem of common high-efficiency nitriding furnaces having semi-tube cooling pipes. Because the semi-tubes are coiled around the furnace surface, the contact area with the furnace is limited, resulting in poor cooling performance and localized excessively low or high temperatures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a front view of the structure of this utility model;

[0020] Figure 3 This is a side sectional view of the structure of this utility model;

[0021] Figure 4 This is a three-dimensional view of the nitriding furnace of this utility model.

[0022] In the diagram: 1. Nitriding furnace; 2. Integrated cooling jacket; 3. Primary water inlet pipe; 31. Primary water inlet valve; 4. Intermediate water inlet pipe; 41. Intermediate water inlet valve; 5. Advanced water inlet pipe; 51. Advanced water inlet valve; 6. Cooling water tank; 7. Primary water outlet pipe; 71. Primary water outlet valve; 8. Intermediate water outlet pipe; 81. Intermediate water outlet valve; 9. Advanced water outlet pipe; 91. Advanced water outlet valve; 10. Primary circulation pump; 11. Intermediate circulation pump; 12. Advanced circulation pump; 13. Refrigerator; 14. Water supply pipe; 15. Drain pipe; 16. Insulation shell; 17. Connecting top plate; 18. Sealed top cover; 19. Air inlet pipe; 20. Exhaust pipe; 21. Mounting side plate; 22. Hydraulic cylinder; 23. Rotating support rod; 24. Connecting horizontal plate; 25. Connecting plate; 26. Temperature sensor; 27. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4This embodiment describes a high-efficiency nitriding furnace with adjustable cooling water volume, comprising a nitriding furnace 1. An integrated cooling jacket 2 is fixedly mounted on the surface of the nitriding furnace 1, and the integrated cooling jacket 2 is equipped with a multi-stage circulating cooling assembly. By replacing the common cooling half-pipe with the integrated cooling jacket 2, the contact area between the cooling water and the nitriding furnace 1 is increased, avoiding the problem of localized excessively low temperatures.

[0025] The multi-stage circulating cooling assembly includes a primary water inlet pipe 3, a secondary water inlet pipe 4, and a senior water inlet pipe 5, which are fixedly installed on the side of the integrated cooling jacket 2 near the bottom. A cooling water tank 6 is fixedly installed at the input end of the primary water inlet pipe 3, the secondary water inlet pipe 4, and the senior water inlet pipe 5. A primary water outlet pipe 7, a secondary water outlet pipe 8, and a senior water outlet pipe 9 are fixedly installed on the side of the integrated cooling jacket 2 near the top. The output ends of the primary water outlet pipe 7, the secondary water outlet pipe 8, and the senior water outlet pipe 9 are fixedly connected to the top of the cooling water tank 6.

[0026] Specifically, the primary water inlet pipe 3, intermediate water inlet pipe 4, and advanced water inlet pipe 5, and the corresponding primary water outlet pipe 7, intermediate water outlet pipe 8, and advanced water outlet pipe 9 are opened as needed to control the flow rate of cooling water in the integrated cooling jacket 2 and adjust the cooling effect.

[0027] Please see Figure 1 , Figure 2 and Figure 4 In this embodiment, a primary water inlet valve 31 is fixedly installed on the surface of the primary water inlet pipe 3, an intermediate water inlet valve 41 is fixedly installed on the surface of the intermediate water inlet pipe 4, and an advanced water inlet valve 51 is fixedly installed on the surface of the advanced water inlet pipe 5.

[0028] The primary water outlet pipe 7 is fixedly equipped with a primary water outlet valve 71, the intermediate water outlet pipe 8 is fixedly equipped with an intermediate water outlet valve 81, and the advanced water outlet pipe 9 is fixedly equipped with an advanced water outlet valve 91.

[0029] Secondly, a primary circulation pump 10, a secondary circulation pump 11, and a high-level circulation pump 12 are fixedly installed inside the cooling water tank 6. The output ends of the primary circulation pump 10, the secondary circulation pump 11, and the high-level circulation pump 12 are fixedly connected to the primary water inlet pipe 3, the secondary water inlet pipe 4, and the high-level water inlet pipe 5, respectively.

[0030] Please see Figure 1 and Figure 2 In this embodiment, a cooler 13 is fixedly installed on the inner bottom wall of the cooling water tank 6, a water supply pipe 14 is fixedly installed on the top of the cooling water tank 6, and a drain pipe 15 is fixedly installed on one side of the cooling water tank 6. Cooling water is added to the cooling water tank 6 through the water supply pipe 14, and the cooling water in the cooling water tank 6 is drained through the drain pipe 15 when the cooling water is replaced.

[0031] The nitriding furnace 1 is equipped with a heat-insulating outer shell 16. An integrated cooling jacket 2 is located between the nitriding furnace 1 and the heat-insulating outer shell 16. A connecting top plate 17 is fixedly installed on the top of the nitriding furnace 1. A sealing top cover 18 is provided on the top of the connecting top plate 17. An air inlet pipe 19 and an exhaust pipe 20 are fixedly installed on the top of the sealing top cover 18. The heat-insulating outer shell 16 provides heat preservation. Gas is introduced into the nitriding furnace 1 through the air inlet pipe 19 for reaction. After the reaction is completed, the gas in the nitriding furnace 1 is discharged through the exhaust pipe 20.

[0032] Please see Figure 1 and Figure 3 In this embodiment, a mounting side plate 21 is fixedly installed on one side of the heat insulation shell 16. A hydraulic cylinder 22 is fixedly installed on the top of the mounting side plate 21. A rotating support rod 23 is rotatably installed on the movable end of the hydraulic cylinder 22. A connecting horizontal plate 24 is fixedly installed on the top of the rotating support rod 23. A connecting plate 25 is fixedly installed on the bottom of the connecting horizontal plate 24. The bottom of the connecting plate 25 is fixedly connected to the sealing top cover 18. The hydraulic cylinder 22 drives the rotating support rod 23 to rise, which in turn drives the connecting horizontal plate 24 to rise, and then drives the sealing top cover 18 to rise. The rotating support rod 23 drives the sealing top cover 18 to rotate, thus displacing it from the nitriding furnace 1 and opening the nitriding furnace 1.

[0033] A temperature sensor 26 is fixedly installed inside the integrated cooling jacket 2, and a control panel 27 is fixedly installed on the surface of the cooling water tank 6. The temperature sensor 26 detects the temperature of the cooling water in the integrated cooling jacket 2 and transmits the data to the control panel 27 for real-time monitoring.

[0034] The working principle of the above embodiment is as follows: When slow cooling is required, the primary inlet valve 31, the primary outlet valve 71, and the primary circulation pump 10 are opened, and low-speed cooling circulation is carried out through the primary inlet pipe 3 and the primary outlet pipe 7. When medium-speed cooling is required, the intermediate inlet valve 41, the intermediate outlet valve 81, and the intermediate circulation pump 11 are opened, and medium-speed cooling circulation is carried out through the primary inlet pipe 3, the intermediate inlet pipe 4, the primary outlet pipe 7, and the intermediate outlet pipe 8. When high-speed cooling is required, the advanced inlet valve 51, the advanced outlet valve 91, and the advanced circulation pump 12 are opened again, and the primary inlet pipe 3, the intermediate inlet pipe 4, the advanced inlet pipe 5, the primary outlet pipe 7, the intermediate outlet pipe 8, and the advanced outlet pipe 9 are all opened, and high-speed cooling circulation is carried out.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency nitriding furnace with adjustable cooling water flow, comprising a nitriding furnace (1), characterized in that: The surface of the nitriding furnace (1) is fixedly installed with an integrated cooling jacket (2), and a multistage circulating cooling assembly is arranged on the integrated cooling jacket (2); The multistage circulating cooling assembly comprises a primary water inlet pipe (3), a middle water inlet pipe (4) and a high-level water inlet pipe (5) fixedly installed on the integrated cooling jacket (2) near the bottom side, the input ends of the primary water inlet pipe (3), the middle water inlet pipe (4) and the high-level water inlet pipe (5) are fixedly installed with a cooling water tank (6), and the integrated cooling jacket (2) is fixedly installed with a primary water outlet pipe (7), a middle water outlet pipe (8) and a high-level water outlet pipe (9) near the top side, and the output ends of the primary water outlet pipe (7), the middle water outlet pipe (8) and the high-level water outlet pipe (9) are fixedly connected with the top of the cooling water tank (6).

2. The high efficiency nitriding furnace with adjustable cooling water flow according to claim 1, characterized in that: The surface of the primary water inlet pipe (3) is fixedly installed with a primary water inlet valve (31), the surface of the middle water inlet pipe (4) is fixedly installed with a middle water inlet valve (41), and the surface of the high-level water inlet pipe (5) is fixedly installed with a high-level water inlet valve (51).

3. The high efficiency nitriding furnace with adjustable cooling water flow according to claim 1, characterized in that: The surface of the primary water outlet pipe (7) is fixedly installed with a primary water outlet valve (71), the surface of the middle water outlet pipe (8) is fixedly installed with a middle water outlet valve (81), and the surface of the high-level water outlet pipe (9) is fixedly installed with a high-level water outlet valve (91).

4. The high efficiency nitriding furnace with adjustable cooling water quantity according to claim 1, characterized in that: The inside of the cooling water tank (6) is fixedly installed with a primary circulating pump (10), a middle circulating pump (11) and a high-level circulating pump (12), and the output ends of the primary circulating pump (10), the middle circulating pump (11) and the high-level circulating pump (12) are fixedly connected with the primary water inlet pipe (3), the middle water inlet pipe (4) and the high-level water inlet pipe (5) respectively.

5. The high efficiency nitriding furnace with adjustable cooling water quantity according to claim 1, characterized in that: The inside bottom wall of the cooling water tank (6) is fixedly installed with a refrigeration device (13), the top of the cooling water tank (6) is fixedly installed with a water supplement pipe (14), and one side of the cooling water tank (6) is fixedly installed with a drain pipe (15).

6. The high efficiency nitriding furnace with adjustable cooling water quantity according to claim 1, characterized in that: The surface of the nitriding furnace (1) is fixedly installed with a heat preservation shell (16), the integrated cooling jacket (2) is located between the nitriding furnace (1) and the heat preservation shell (16), the top of the nitriding furnace (1) is fixedly installed with a connecting top plate (17), the top of the connecting top plate (17) is provided with a sealing top cover (18), and the top of the sealing top cover (18) is fixedly installed with an air inlet pipe (19) and an air outlet pipe (20).

7. The high efficiency nitriding furnace with adjustable cooling water flow according to claim 6, characterized in that: One side of the heat preservation shell (16) is fixedly installed with a mounting side plate (21), the top of the mounting side plate (21) is fixedly installed with a hydraulic cylinder (22), the movable end of the hydraulic cylinder (22) is rotatably installed with a rotating support rod (23), the top end of the rotating support rod (23) is fixedly installed with a connecting cross plate (24), the bottom of the connecting cross plate (24) is fixedly installed with a connecting plate (25), and the bottom of the connecting plate (25) is fixedly connected with the sealing top cover (18).

8. The high efficiency nitriding furnace with adjustable cooling water flow according to claim 1, characterized in that: The inside of the integrated cooling jacket (2) is fixedly installed with a temperature sensor (26), and the surface of the cooling water tank (6) is fixedly installed with a control panel (27).

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