Multi-channel quenching equipment

Abstract

The present application provides a multi-pipeline quenching equipment, including a quenching tank and a quenching liquid circulation system; the quenching liquid circulation system includes a circulation pump, and a liquid outlet pipe and a liquid return pipe connected to the circulation pump; the liquid outlet pipe is provided with a liquid outlet, and the liquid outlet is arranged at the bottom of the quenching tank; the liquid return pipe is provided with a liquid inlet, and the liquid inlet is arranged at the bottom of the quenching tank and is higher than the height of the liquid outlet; the liquid outlet pipe is provided with at least two parallel arranged liquid spray pipes; each liquid spray pipe is arranged with a liquid outlet with an opening facing upward. This scheme circulates the quenching liquid through a circulation pump, so that the heat of the workpiece diffuses faster in the quenching liquid, and the temperature of each part of the quenching liquid is balanced in a short time, reducing the difference in the temperature of the quenching liquid that each part of the workpiece contacts during quenching, and improving the quenching effect. It solves the problem in the prior art that when a heated workpiece is quenched, the local temperature difference of the quenching liquid is large, which affects the quenching effect of the workpiece.

Description

Technical Field

[0001] The present application relates to the technical field of equipment manufacturing, and in particular to a multi-pipeline quenching equipment. Background Art

[0002] With the improvement of industrial level, the performance requirements for high-end parts are getting higher and higher, and the requirements for heat treatment processes are also rising. Quenching, as a conventional heat treatment process, is also being continuously optimized. Among them, the temperature uniformity of the quenching medium plays an important role in improving the quenching hardness. In the prior art, when the workpiece is placed in the quenching medium for quenching after being heated, the heat of the workpiece diffuses slowly in the quenching medium, resulting in large local temperature differences in the quenching medium, which will affect the effect of the workpiece after quenching. Utility Model Content

[0003] An object of the present application is to provide a multi-pipeline quenching device to solve at least one of the above problems.

[0004] The present application provides a multi-pipeline quenching device, including a quenching tank and a quenching liquid circulation system;

[0005] The quenching liquid circulation system includes a circulation pump, and a liquid outlet pipe and a liquid return pipe connected to the circulation pump;

[0006] The liquid outlet pipeline is provided with a liquid outlet, and the liquid outlet is arranged at the bottom of the quenching tank;

[0007] The liquid return pipe is provided with a liquid inlet, which is arranged at the bottom of the quenching tank and is higher than the height of the liquid outlet;

[0008] The liquid outlet pipeline is provided with at least two liquid spraying pipelines arranged in parallel;

[0009] Each liquid spraying pipe is provided with a liquid outlet opening facing upward, forming a liquid outlet array.

[0010] Preferably, another circulation pump and a regulating valve are provided between the liquid return pipeline and the liquid inlet pipeline.

[0011] Preferably, the ratio of the difference between the quenching tank wall height and the liquid inlet height to the difference between the liquid inlet height and the liquid outlet height is 1:1 to 1:2.

[0012] Preferably, the distance between the liquid outlet pipe and the bottom surface of the quenching tank is greater than 2.5 cm.

[0013] Preferably, the distance between the liquid spray pipes is between 2.5 cm and 6 cm.

[0014] Preferably, the liquid outlet is circular, and the ratio of the diameter of the liquid outlet to the distance between the liquid outlets is 1:5 to 1:7.

[0015] Compared with the prior art, the present application provides a multi-pipeline quenching equipment, including a quenching tank and a quenching liquid circulation system; the quenching liquid circulation system includes a circulation pump, and a liquid outlet pipe and a liquid return pipe connected to the circulation pump; the liquid outlet pipe is provided with a liquid outlet, and the liquid outlet is arranged at the bottom of the quenching tank; the liquid return pipe is provided with a liquid inlet, and the liquid inlet is arranged at the bottom of the quenching tank and is higher than the height of the liquid outlet; the liquid outlet pipe is provided with at least two parallel arranged liquid spray pipes; each liquid spray pipe is arranged with a liquid outlet with an opening facing upward to form a liquid outlet array. This scheme circulates the quenching liquid through a circulation pump, so that the heat of the workpiece diffuses faster in the quenching liquid, and the temperature of each part of the quenching liquid is balanced in a short time, reducing the difference in the temperature of the quenching liquid that each part of the workpiece contacts during quenching, and improving the quenching effect. It solves the problem in the prior art that when a hot workpiece is quenched, the local temperature difference of the quenching liquid is large, which affects the quenching effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 A schematic diagram of one embodiment of the multi-tube quenching equipment described in the present application;

[0018] The same or similar reference numerals in the drawings represent the same or similar components. DETAILED DESCRIPTION

[0019] Combine the following Figure 1 The multi-pipeline quenching equipment of the present application is further explained.

[0020] The present application provides a multi-pipeline quenching device, including a quenching tank 8 and a quenching liquid circulation system; the quenching liquid circulation system includes a circulation pump 2, and 4 liquid outlet pipes and a liquid return pipe connected to the circulation pump 2; the liquid outlet pipe 4 is provided with a liquid outlet 7, and the liquid outlet 7 is arranged at the bottom of the quenching tank 8; the liquid return pipe is provided with a liquid inlet 1, and the liquid inlet 1 is arranged at the bottom of the quenching tank 8 and is higher than the height of the liquid outlet 7; the liquid outlet pipe 4 is provided with at least two parallel arranged liquid spray pipes 6; each liquid spray pipe 6 is arranged with a liquid outlet 7 with an opening facing upward, forming an array of liquid outlets 7.

[0021] The quenching liquid is circulated through the liquid outlet pipe 4 and the liquid return pipe connected to the circulation system, and the quenching liquid is sprayed out through the liquid outlet 7 to achieve the purpose of stirring the quenching liquid in different areas of the quenching tank 8 with large temperature differences, thereby balancing the differences between different parts of the quenching liquid in the quenching tank 8. When the workpiece is quenched by the liquid, the heat emitted by the workpiece can be quickly balanced in the quenching liquid. It not only reduces the temperature difference between the quenching liquid closer to the workpiece and the quenching liquid farther away from the workpiece during quenching, but also reduces the temperature difference between various parts of the workpiece, thereby improving the quenching effect. It solves the problem in the prior art that when the hot workpiece is quenched, the local temperature difference of the quenching liquid is large, which affects the quenching effect of the workpiece.

[0022] In some embodiments of the present application, the liquid outlet pipe 4 is provided with another circulation pump 2 and a regulating valve 3 .

[0023] Another circulating pump 2 can be opened on the original liquid outlet pipe 4, and another liquid outlet pipe 4 can be opened. Another circulating pump 2 is opened on the other liquid outlet pipe 4, which can increase the flow rate of the quenching liquid and accelerate the temperature balance of the quenching liquid in the quenching tank 8. At the same time, a regulating valve 3 can be set to appropriately adjust the flow rate of the quenching liquid, which can not only ensure that the quenching liquid in the quenching tank 8 can be evenly stirred to balance the temperature, but also prevent the quenching liquid from flowing too fast, causing the outlet 7 to spray too violently, causing the quenching liquid to roll in the quenching tank 8, affecting the full contact between the quenching liquid and the workpiece surface, thereby further improving the quenching efficiency and quenching quality.

[0024] In some embodiments of the present application, the ratio of the difference between the height of the quenching tank wall 8 and the height of the liquid inlet 1 to the difference between the height of the liquid inlet 1 and the height of the liquid outlet 7 is 1:1 to 1:2.

[0025] When the workpiece is placed in the quenching tank 8 for quenching, the quenching liquid is sucked from the liquid inlet 1 and then sprayed out from the liquid outlet 7. The wall of the quenching tank 8 can be higher than the liquid inlet 1 to create a condition where the liquid level of the quenching liquid is higher than the liquid inlet 1, so that the quenching medium can smoothly enter the liquid inlet 1. The height of the wall of the quenching tank 8 has a certain height difference with the height of the liquid inlet 1. The ratio of this height difference to the difference between the height of the liquid inlet 1 and the height of the liquid outlet 7 is 1:1 to 1:2. Experiments have shown that when the ratio between the two height differences is 1:1 to 1:2, the liquid pump can make the stirring efficiency of the quenching liquid the highest under a certain power, and will not consume too much energy. At the same time, the stirring will not be too intense, resulting in excessively uneven density inside the quenching liquid, thereby affecting the quenching effect.

[0026] In some embodiments of the present application, the distance between the liquid outlet pipe 4 and the bottom surface of the quenching tank 8 is greater than 2.5 centimeters.

[0027] After experiments with multiple types of quenching liquids, it was found that when the distance between the 4 outlet pipes and the bottom of the quenching tank 8 is greater than 2.5 cm, it can prevent some overly viscous quenching media from having insufficient fluidity during agitation due to a small space, and the temperature of each part of the quenching liquid cannot be uniform. A distance greater than 2.5 cm can better ensure that the quenching liquid has sufficient fluidity during agitation, further accelerate the circulation efficiency, and improve the quenching effect.

[0028] In some embodiments of the present application, the distance between the liquid spray pipes 6 is between 2.5 cm and 6 cm.

[0029] Under a certain pressure of the circulating pump 2, after experiments with quenching liquids of various materials, the distance between the spray pipes 6 is between 2.5 cm and 6 cm. This can prevent some overly viscous quenching liquids from having insufficient fluidity when stirred due to a small space, resulting in the temperature of each part of the quenching liquid being unable to be quickly uniform and the effect of quickly stirring the quenching liquid being unable to be achieved, thereby ensuring that the quenching liquid has sufficient fluidity when stirred, further accelerating the circulation efficiency and improving the quenching effect.

[0030] In some embodiments of the present application, the liquid outlet 7 is circular, and the ratio of the diameter of the liquid outlet 7 to the distance between the liquid outlets 7 is 1:5 to 1:7.

[0031] Under a certain hydraulic pressure of the circulation pump 2, after experiments with quenching liquids of various materials, the ratio of the diameter of the liquid outlet 7 to the distance between the liquid outlets 7 is 1:5 to 1:7, so that when the quenching liquid is sprayed out of the liquid outlet 7, the quenching liquid around the liquid outlet 7 is stirred. At the same time, the quenching liquids around each liquid outlet 7 will not interfere with each other when being stirred, and maintain a certain fluidity. The sprayed quenching liquid will not be unable to stir the quenching liquid around the liquid outlet 7, resulting in insufficient fluidity, and the temperature of each part of the quenching liquid cannot be uniform, and the effect of quickly stirring the temperature of the quenching liquid cannot be achieved. It is ensured that the quenching liquid has sufficient fluidity when being stirred, further accelerating the circulation efficiency and improving the quenching effect.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim can also be implemented by one unit or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

Claims

1. A multi-pipe quenching device, including a quenching tank, characterized in that: Also includes a quenching liquid circulation system; The quenching liquid circulation system includes a circulation pump, and a liquid outlet pipe and a liquid return pipe connected to the circulation pump; The liquid outlet pipeline is provided with a liquid outlet, and the liquid outlet is arranged at the bottom of the quenching tank; The liquid return pipe is provided with a liquid inlet, which is arranged at the bottom of the quenching tank and is higher than the height of the liquid outlet; The liquid outlet pipeline is provided with at least two liquid spraying pipelines arranged in parallel; Each liquid spraying pipe is provided with a liquid outlet opening facing upward, forming a liquid outlet array.

2. The multi-pipeline quenching equipment according to claim 1, characterized in that: Another circulation pump and a regulating valve are arranged between the liquid return pipeline and the liquid outlet pipeline.

3. The multi-pipeline quenching equipment according to claim 1, characterized in that: The ratio of the difference between the height of the quenching tank wall and the height of the liquid inlet to the difference between the height of the liquid inlet and the height of the liquid outlet is 1:1 to 1:

2.

4. The multi-pipeline quenching equipment according to claim 1, characterized in that: The distance between the liquid outlet pipe and the bottom surface of the quenching tank is greater than 2.5 cm.

5. The multi-pipeline quenching equipment according to claim 1, characterized in that: The distance between the liquid spraying pipes is between 2.5 cm and 6 cm.

6. The multi-pipeline quenching equipment according to claim 1, characterized in that: The liquid outlet is circular, and the ratio of the diameter of the liquid outlet to the distance between the liquid outlets is 1:5 to 1:7.

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