Metal fitting heat treatment waste heat recovery device

Abstract

The utility model provides a metal fitting heat treatment waste heat recovery device, which relates to the technical field of heat recovery and comprises a heat collection box, an adjustable ventilation component is arranged on the heat collection box, a spiral elbow is mounted between the inner walls of the heat collection box, two ends of the spiral elbow penetrate through the heat collection box, an air outlet is arranged on the surface of one side of the heat collection box, and the air outlet is communicated with the air outlet. The surface of one end of the heat collection box is provided with a cover plate, the front surface of the cover plate is provided with an installation frame, the installation frame is arranged in the heat collection box, and a filter screen is installed between the inner walls of the installation frame. And the arc-shaped plate blocks the air outlet nozzle. The hot air flow speed adjusting device can adjust the flow speed of the hot air according to specific conditions so as to adjust the flow speed of heat transfer.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery technology, and more specifically, to a waste heat recovery device for heat treatment of metal parts. Background Technology

[0002] Heat treatment of metal parts is a processing method in which metal or alloy workpieces are heated to a suitable temperature in a certain medium and then cooled to increase the performance of the metal. During the heat treatment of metal parts, a lot of hot air is generated. In order to save resources, the hot air is recycled and reused. For example, patent application number CN202320048956.3 describes a high-temperature hot air recovery and utilization device, which includes a heat exchange tank with an air outlet at the top. A heat exchange plate is installed in the heat exchange tank above the vent. The lower surface of the heat exchange plate has multiple annular grooves, all of which are coaxial with the heat exchange tank. The diameter of the multiple annular grooves gradually increases along the direction away from the vertical center line of the heat exchange tank. A heat exchange cavity is also opened at the center of the bottom of the heat exchange plate. A motor electrically connected to the control system is installed at the top of the heat exchange tank. The output shaft of the motor extends into the heat exchange tank and is coaxially connected to a rotating shaft. The rotating shaft coaxially passes through the gas collection hood. Multiple stirring arms are arranged circumferentially on the outer wall of the rotating shaft. This application has the advantage of improving the heat exchange effect of water to hot air. In the above technical solution, increasing the flow speed of hot air can accelerate the heat transfer, thereby improving the heating efficiency. However, the speed at which hot air enters the heat exchange tank is not easy to adjust, which affects the processing efficiency. Utility Model Content

[0003] The main objective of this invention is to provide a waste heat recovery device for the heat treatment of metal parts, which can effectively solve the problem in the prior art where increasing the flow rate of hot air can accelerate heat transfer and thus improve heating efficiency, but the speed at which hot air enters the heat exchange tank is inconvenient to adjust, thus affecting processing efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a waste heat recovery device for heat treatment of metal parts, including a heat collection box, an adjustable ventilation component on the heat collection box, a spiral bend pipe installed between the inner walls of the heat collection box, both ends of the spiral bend pipe passing through the heat collection box, an air outlet provided on one side surface of the heat collection box, a cover plate installed on one end surface of the heat collection box, an installation frame installed on the front surface of the cover plate, the installation frame being disposed inside the heat collection box, and a filter screen installed between the inner walls of the installation frame.

[0005] Preferably, the upper surface of the solar collector box is provided with a box cover.

[0006] Preferably, the cover plate is connected to one side surface of the heat collection box by a first bolt.

[0007] Preferably, one end surface of the mounting frame is provided with a screw hole, and a second bolt is installed on the cover plate, with the top end of the second bolt located inside the screw hole.

[0008] Preferably, the adjustable ventilation component includes a ventilation pipe, which is fixedly installed between the inner walls of both sides of the solar collector box.

[0009] Preferably, a number of air outlet nozzles are fixedly installed at equal intervals around the circumference of the ventilation duct.

[0010] Preferably, a servo motor is fixedly installed on one end of the ventilation duct, a rotating shaft is installed at the output end of the servo motor, a plurality of connecting rods are fixedly installed at equal intervals on one side surface of the rotating shaft, an arc-shaped plate is fixedly installed at the top of the connecting rod, and the arc-shaped plate is attached to the inner wall of the ventilation duct.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) A cover plate is installed on one end of the heat collection box, and an installation frame is installed on the front surface of the cover plate. The installation frame is set inside the heat collection box, and a filter screen is installed between the inner walls of the installation frame. The filter screen can filter out impurities in the air, preventing dust from entering the heat collection box and adhering to the circumference of the spiral bend tube, which would affect the heating efficiency. When it is necessary to adjust the flow speed of hot air, the servo motor output end drives the rotating shaft to rotate, which in turn drives the arc plate to rotate, so that the arc plate blocks the air outlet nozzle. This adjusts the flow speed of hot air. This device can adjust the flow speed of hot air according to specific conditions to adjust the flow speed of heat transfer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a waste heat recovery device for heat treatment of metal parts according to the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the heat collection box of a waste heat recovery device for heat treatment of metal parts according to this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the ventilation pipe of a waste heat recovery device for heat treatment of metal fittings according to this utility model.

[0016] Figure 4 This is a schematic diagram of the installation frame structure of a waste heat recovery device for heat treatment of metal parts according to this utility model.

[0017] In the diagram: 1. Heat collection box; 2. Coiled bend pipe; 3. First bolt; 4. Second bolt; 5. Adjustable ventilation assembly; 501. Ventilation pipe; 502. Air outlet nozzle; 503. Servo motor; 504. Rotating shaft; 505. Connecting rod; 506. Arc plate; 6. Box cover; 7. Air outlet; 8. Mounting frame; 9. Filter screen; 10. Screw hole; 11. Cover plate. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 , 2 As shown, a waste heat recovery device for heat treatment of metal parts includes a heat collection box 1, an adjustable ventilation component 5, a spiral bend 2 installed between the inner walls of the heat collection box 1, both ends of the spiral bend 2 passing through the heat collection box 1, an air outlet 7 provided on one side surface of the heat collection box 1, a cover plate 11 installed on one end surface of the heat collection box 1, an installation frame 8 installed on the front surface of the cover plate 11, the installation frame 8 being disposed inside the heat collection box 1, and a filter screen 4 installed between the inner walls of the installation frame 8.

[0020] like Figure 1 As shown, a cover 6 is provided on the upper surface of the solar collector box 1 to facilitate the inspection and maintenance of the components inside the solar collector box 1.

[0021] like Figure 1 , 2 As shown, the cover plate 11 is connected to one side surface of the heat collection box 1 by the first bolt 3, which facilitates the disassembly and installation of the cover plate 11.

[0022] like Figure 1 , 2 As shown, a screw hole 10 is provided on one end surface of the mounting frame 8, and a second bolt 4 is installed on the cover plate 11. The top end of the second bolt 4 is located inside the screw hole 10, which facilitates the disassembly and installation of the mounting frame 8 and the replacement of the dustproof net 9.

[0023] like Figure 2 , 3As shown in Figure 4, the adjustable ventilation assembly 5 includes a ventilation pipe 501, which is fixedly installed between the inner walls of both sides of the heat collection box 1. A plurality of air outlet nozzles 502 are fixedly installed at equal intervals on the circumference of the ventilation pipe 501. A servo motor 503 is fixedly installed on one end of the ventilation pipe 501. A rotating shaft 504 is installed at the output end of the servo motor 503. A plurality of connecting rods 505 are fixedly installed at equal intervals on one side of the rotating shaft 504. An arc-shaped plate 506 is fixedly installed at the top of each connecting rod 505, and the arc-shaped plate 506 is attached to the inner wall of the ventilation pipe 501. The device is configured such that a cover plate 11 is installed on one end of the heat collector box 1, and an installation frame 8 is installed on the front surface of the cover plate 11. The installation frame 8 is located inside the heat collector box 1, and a filter screen 4 is installed between the inner walls of the installation frame 8. The filter screen 4 can filter impurities in the air, preventing dust from entering the heat collector box 1 and adhering to the circumference of the spiral bend tube 2, which would affect the heating efficiency. When it is necessary to adjust the flow speed of hot air, the output end of the servo motor 503 drives the rotating shaft 504 to rotate, which in turn drives the arc plate 506 to rotate, causing the arc plate 506 to block the air outlet nozzle 502. This adjusts the flow speed of hot air according to specific conditions, thereby adjusting the flow speed of heat transfer.

[0024] Working principle of a waste heat recovery device for heat treatment of metal parts:

[0025] In use, when this device is needed to treat the hot exhaust gas generated during the heat treatment of metal parts, the hot exhaust gas flows into the ventilation pipe 501, and the hot air flows from the exhaust nozzle 502 into the heat collection box 1, raising the temperature inside the heat collection box 1. At this time, the water source to be heated is discharged into the spiral bend 2. When the spiral bend 2 comes into contact with the hot air, it heats the water source inside the spiral bend 2. Because multiple exhaust nozzles 502 are provided, the hot air can flow fully into the heat collection box 1, improving the heating efficiency. The device is configured such that a cover plate 11 is installed on one end of the heat collector box 1, and a mounting frame 8 is installed on the front surface of the cover plate 11. The mounting frame 8 is located inside the heat collector box 1, and a filter screen 4 is installed between the inner walls of the mounting frame 8. The filter screen 4 can filter impurities in the air to prevent dust from entering the heat collector box 1 and adhering to the circumference of the spiral bend tube 2, which would affect the heating efficiency. When it is necessary to adjust the flow speed of hot air, the output end of the servo motor 503 drives the rotating shaft 504 to rotate, which in turn drives the arc plate 506 to rotate, causing the arc plate 506 to block the air outlet nozzle 502. This adjusts the flow speed of hot air according to specific conditions, thereby adjusting the flow speed of heat transfer.

[0026] The above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A waste heat recovery device for heat treatment of metal fittings, comprising a heat collection box (1), characterized in that: An adjustable ventilation assembly (5) is provided on the heat collection box (1). A spiral bend pipe (2) is installed between the inner walls of the heat collection box (1). Both ends of the spiral bend pipe (2) pass through the heat collection box (1). An air outlet (7) is provided on one side surface of the heat collection box (1). A cover plate (11) is installed on one end surface of the heat collection box (1). An installation frame (8) is installed on the front surface of the cover plate (11). The installation frame (8) is located inside the heat collection box (1). A filter screen (9) is installed between the inner walls of the installation frame (8).

2. The waste heat recovery device for heat treatment of metal parts according to claim 1, characterized in that; The upper surface of the solar collector (1) is provided with a cover (6).

3. The waste heat recovery device for heat treatment of metal parts according to claim 1, characterized in that: The cover plate (11) is connected to one side surface of the heat collection box (1) by the first bolt (3).

4. The waste heat recovery device for heat treatment of metal parts according to claim 1, characterized in that: The mounting frame (8) has a screw hole (10) on one end surface, and a second bolt (4) is installed on the cover plate (11), with the top of the second bolt (4) located inside the screw hole (10).

5. The waste heat recovery device for heat treatment of metal parts according to claim 1, characterized in that: The adjustable ventilation assembly (5) includes a ventilation pipe (501), which is fixedly installed between the inner walls on both sides of the heat collection box (1).

6. The waste heat recovery device for heat treatment of metal parts according to claim 5, characterized in that: The ventilation duct (501) is fixedly installed with several air outlet nozzles (502) at equal intervals around its perimeter.

7. The waste heat recovery device for heat treatment of metal parts according to claim 6, characterized in that: A servo motor (503) is fixedly installed on one end of the ventilation pipe (501). A rotating shaft (504) is installed at the output end of the servo motor (503). Several connecting rods (505) are fixedly installed at equal intervals on one side surface of the rotating shaft (504). An arc plate (506) is fixedly installed at the top of the connecting rod (505). The arc plate (506) is attached to the inner wall of the ventilation pipe (501).

Images