Die steel forging waste heat recovery device

By using a gas collection hood device during the die steel forging process, hot gas is blown in using an air extraction device for preheating and cooling, thus solving the problem of heat waste after die steel forging and improving the efficiency of heat energy utilization.

CN224181978UActive Publication Date: 2026-05-01RUGAO HONGMAO HEAVY FORGING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUGAO HONGMAO HEAVY FORGING
Filing Date
2025-05-24
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

During the forging process of mold steel, the heat dissipated after forging is wasted, leading to the problem of heat energy waste on conventional production lines.

Method used

A gas collection hood is used to cover the output line of the target production line. Hot air is blown in by an external air extraction device to preheat the mold steel and accelerate its cooling. At the same time, the gas collection hood can flexibly cover the waste heat recovery range.

Benefits of technology

This technology enables the preheating and rapid cooling of mold steel, reducing heat waste and improving heat utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a die steel forging waste heat recovery device which comprises a gas-collecting hood, one end of the gas-collecting hood is matched with the other end of the gas-collecting hood in a buckling mode, a sealing cover is plugged at one end of the upper portion of the gas-collecting hood, a butt joint nozzle is installed at the other end of the gas-collecting hood in a threaded mode, and the gas-collecting hood is communicated with the inner space of the butt joint nozzle. The gas collecting hood comprises a hood body, the upper portion of the hood body is fixedly connected with an inserting nozzle, the inner space of the inserting nozzle is communicated with the inner space of the hood body, the inserting nozzle is matched with the upper portion of the other end of the hood body in an inserting mode, one end of the lower portion of the hood body is symmetrically and fixedly connected with elastic buckles, and the elastic buckles are matched with the lower portion of the other end of the hood body in a buckling mode. The output line of a target production line is covered with the gas collecting hood, the butt joint nozzle is sleeved with the pipeline, hot air is blown to the input line of the production line by additionally arranging air exhaust equipment, die steel is preheated, meanwhile, cooling of die steel on the output line can be accelerated, and the waste heat recovery coverage range is conveniently and flexibly combined by assembling the gas collecting hood.
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Description

A waste heat recovery device for die steel forging Technical Field

[0001] This utility model belongs to the field of mold steel forging technology, and in particular relates to a waste heat recovery device for mold steel forging. Background Technology

[0002] Forging of die steel is a key process that optimizes the properties of steel and forms die blanks through high-temperature plastic deformation. Its core lies in improving the uniformity of the structure, refining the grains and avoiding defects by controlling heating, deformation and cooling.

[0003] When forging die steel, it is necessary to heat the forging process. After forging, it is also necessary to dissipate heat to return it to room temperature. Therefore, the heat dissipated after forging is wasted, resulting in the problem of heat energy waste on the output line of conventional production lines.

[0004] To address this issue, we propose a waste heat recovery device for die steel forging. Summary of the Invention

[0005] The purpose of this invention is to solve the problem of heat energy waste in the output line of conventional production lines, and to propose a waste heat recovery device for die steel forging.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste heat recovery device for die steel forging includes a gas collecting hood, one end of which is fastened to the other end. A sealing cap is plugged into the upper end of the hood, and a threaded connector is installed at the other end. The internal spaces of the hood and the connector are interconnected. The hood is placed over the output line of the target production line, and a pipe is fitted onto the connector. Hot air is blown onto the input line of the production line using an external extraction device to preheat the die steel. Simultaneously, it accelerates the cooling of the die steel on the output line. The hood allows for convenient and flexible configuration of the waste heat recovery coverage area.

[0008] Preferably, the gas collection hood includes a hood body, with a connector fixedly connected to the upper part of the hood body. The internal space of the connector communicates with the internal space of the hood body, and the connector is inserted into and matched with the upper part of the other end of the hood body. A spring-loaded buckle is symmetrically fixedly connected to one end of the lower part of the hood body, and the spring-loaded buckle is fastened to the lower part of the other end of the hood body. Multiple gas collection hoods can be assembled by inserting the connector of one gas collection hood into the upper part of the hood body of another gas collection hood, while simultaneously using the spring-loaded buckle of one gas collection hood to fasten it into the hood body of another gas collection hood, facilitating the assembly of the gas collection hoods.

[0009] Preferably, the head of the spring clip has a guide surface. The guide surface facilitates the guidance of the spring clip into the housing of another gas collection hood.

[0010] Preferably, the sealing cover includes a baffle, one side of which is fixedly connected to a retaining ring. The retaining ring is inserted into the upper part of the gas collection hood on one side to reduce leakage.

[0011] Preferably, the connector includes a threaded nozzle, one end of which is fixedly connected to a connecting nozzle, and a retaining ring is fixedly connected to the outside of the connecting nozzle. After screwing the retaining ring into the connector, the exhaust pipe of the external gas supply equipment is fitted onto the connecting nozzle, allowing the gas collection hood to be easily connected to the exhaust equipment pipeline.

[0012] Preferably, the connector further includes an anti-slip ring, which is fixedly connected to the outside of the connector. The anti-slip ring increases the friction between the pipe and the connector, improving the firmness of the connection between the pipe and the connector.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] 1. Place the gas collection hood over the output line of the target production line, and fit the pipe onto the docking nozzle. Use an external air extraction device to blow hot air onto the input line of the production line to preheat the mold steel. At the same time, it can also accelerate the cooling of the mold steel on the output line. By assembling the gas collection hood, the waste heat recovery coverage area can be easily and flexibly combined.

[0015] 2. Assemble multiple gas collection hoods together. Use the connector of one gas collection hood to insert into the upper part of the body of another gas collection hood, and use the snap fastener of one gas collection hood to fasten into the body of another gas collection hood, which makes it easy to assemble the gas collection hoods.

[0016] 3. After screwing the retaining ring into the connector, put the exhaust pipe of the external gas supply equipment onto the connector. The gas collection hood can then be easily connected to the exhaust equipment pipeline through the connector. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a schematic diagram of the gas collection hood structure of this utility model;

[0019] Figure 3 is a schematic diagram of the sealing cap structure of this utility model;

[0020] Figure 4 is a schematic diagram of the docking nozzle structure of this utility model.

[0021] In the diagram: 2. Gas collection hood; 3. Sealing cap; 4. Connecting nozzle; 21. Cover body; 22. Insert nozzle; 23. Spring snap; 24. Guide surface; 31. Baffle plate; 32. Insert ring; 41. Threaded nozzle; 42. Retaining ring; 43. Connecting nozzle; 44. Anti-slip ring. Detailed Implementation

[0022] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0023] As shown in Figure 1, a waste heat recovery device for die steel forging includes a gas collecting hood 2, one end of which is fastened to the other end. A sealing cap 3 is plugged into the upper end of the gas collecting hood 2, and a connecting nozzle 4 is threaded onto the other end of the gas collecting hood 2. The internal spaces of the gas collecting hood 2 and the connecting nozzle 4 are connected.

[0024] As shown in Figures 1 and 2, the gas collection hood 2 includes a hood body 21. A connector 22 is fixedly connected to the upper part of the hood body 21, and the internal space of the connector 22 communicates with the internal space of the hood body 21. The connector 22 is inserted into and matched with the upper part of the other end of the hood body 21. A spring clip 23 is symmetrically fixedly connected to one end of the lower part of the hood body 21, and the spring clip 23 is fastened to the lower part of the other end of the hood body 21. Multiple gas collection hoods 2 are assembled by inserting the connector 22 of one gas collection hood 2 into the upper part of the hood body 21 of another gas collection hood 2, while simultaneously fastening the spring clip 23 of one gas collection hood 2 inside the hood body 21 of another gas collection hood 2, thus assembling the gas collection hood 2.

[0025] As shown in Figure 2, the head of the spring clip 23 is provided with a guide surface 24. The guide surface 24 guides the spring clip 23 into the cover 21 of another gas collecting hood 2.

[0026] As shown in Figures 1 and 3, the sealing cover 3 includes a baffle 31, and a retaining ring 32 is fixedly connected to one side of the baffle 31. The retaining ring 32 is inserted into the cover 21. The retaining ring 32 is inserted into the upper part of the cover 21 of the gas collecting cover 2 on one side to reduce the leakage rate.

[0027] As shown in Figures 1 and 4, the connecting nozzle 4 includes a threaded nozzle 41, one end of which is fixedly connected to a connecting nozzle 43. A retaining ring 42 is fixedly connected to the outside of the connecting nozzle 43. The threaded nozzle 41 is threaded into the plug nozzle 22, and the connecting nozzle 43 is connected to an external pipeline. After screwing the retaining ring 42 into the plug nozzle 22, the suction pipe of the external gas transmission equipment is fitted onto the connecting nozzle 43.

[0028] As shown in Figures 1 and 4, the connecting nozzle 4 also includes an anti-slip ring 44, which is fixedly connected to the outside of the connecting nozzle 43. The anti-slip ring 44 increases the friction between the pipe and the connecting nozzle 43.

[0029] Working principle: The gas collection hood 2 is placed over the output line of the target production line, and the pipe is fitted onto the docking nozzle 4. Hot air is blown onto the input line of the production line by an external air extraction device to preheat the mold steel. At the same time, it can also accelerate the cooling of the mold steel on the output line. By assembling the gas collection hood 2, the waste heat recovery coverage area can be flexibly combined.

[0030] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0031] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A waste heat recovery device for die steel forging, characterized in that: Includes a gas collection hood (2), one end of which is fastened to the other end, a sealing cap (3) is plugged into the upper part of the gas collection hood (2), and a connecting nozzle (4) is threaded onto the other end of the gas collection hood (2). The internal spaces of the gas collection hood (2) and the connecting nozzle (4) are connected.

2. The waste heat recovery device for die steel forging according to claim 1, characterized in that: The gas collection hood (2) includes a hood body (21), and a connector (22) is fixedly connected to the upper part of the hood body (21). The internal space of the connector (22) is connected to the internal space of the hood body (21). The connector (22) is plugged into the upper part of the other end of the hood body (21). A snap fastener (23) is symmetrically fixedly connected to one end of the lower part of the hood body (21). The snap fastener (23) is fastened to the lower part of the other end of the hood body (21).

3. The waste heat recovery device for die steel forging according to claim 2, characterized in that: The head of the snap fastener (23) is provided with a guide surface (24).

4. The waste heat recovery device for die steel forging according to claim 1, characterized in that: The sealing cover (3) includes a baffle (31), and a ring (32) is fixedly connected to one side of the baffle (31).

5. The waste heat recovery device for die steel forging according to claim 1, characterized in that: The connecting nozzle (4) includes a threaded nozzle (41), one end of which is fixedly connected to a connecting nozzle (43), and a retaining ring (42) is fixedly connected to the outside of the connecting nozzle (43).

6. The waste heat recovery device for die steel forging according to claim 5, characterized in that: The connecting nozzle (4) also includes an anti-slip ring (44), which is fixedly connected to the outside of the connecting nozzle (43).