Water tank for heat treatment with improved power consumption ratio

By combining a flip-top structure with electromagnetic induction heating, the problems of mobility and energy consumption in existing heat treatment water tanks have been solved, achieving rapid heating and good heat preservation, reducing energy consumption and improving heat treatment efficiency.

CN117328001BActive Publication Date: 2026-06-23ZHEJIANG HUAZHU CASTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG HUAZHU CASTING TECH CO LTD
Filing Date
2023-11-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing heat treatment water tanks are immovable, which makes it inconvenient to transport workpieces. In addition, the electric heating mode consumes a lot of electricity, has a slow heating rate, and poor heat preservation effect, resulting in energy waste and high power consumption.

Method used

It adopts a flip-top structure, combined with electromagnetic induction heating and heating rods. The tank body and lid are covered with an insulation layer. It is movable by using rails and pulleys, and the medium inside the water tank is rapidly heated and kept warm by electromagnetic induction coils and heating rods.

Benefits of technology

It achieves rapid heating and good insulation of the water tank, reduces energy consumption, and improves heat treatment efficiency and energy efficiency ratio.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a heat treatment water tank with improved power consumption ratio, which comprises a tank body and a reversible tank cover, and a heat preservation layer is covered on the tank body and the tank cover; an electromagnetic induction coil is arranged on the side wall of the tank body and used for heating the side wall of the tank body; a plurality of heating rods are arranged at the bottom of the tank cover and extend into the medium in the tank body to heat the medium. The heat treatment water tank with improved power consumption ratio has the advantages of fast temperature rising, good heat preservation and low energy consumption.
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Description

Technical Field

[0001] This invention relates to a heat treatment water tank that improves power consumption ratio. Background Technology

[0002] T6 heat treatment is a heat treatment process for wrought aluminum alloys and cast aluminum alloys. It is a process of "solution treatment (for steel, this process is called "quenching") + artificial aging". The main factors are solution temperature, quenching rate (determined by quenching medium), aging temperature, holding time, and aging level (single-stage aging or multi-stage aging).

[0003] A heat treatment furnace refers to an electric or fuel-fired furnace used for heating furnace charge for heat treatment. Commonly used heat treatment furnaces include box-type resistance furnaces, pit-type resistance furnaces, gas carburizing furnaces, and salt bath furnaces. Continuous furnaces are typically used, where workpieces are continuously loaded through the charging door, pass through the furnace chamber, and are continuously discharged through the discharge door. A common method for in-furnace conveying is to place the workpieces on heat-resistant steel guide rails and move them using walking beams or push rods.

[0004] After passing through the heat treatment furnace, the workpieces need to be immersed in a water tank for cooling and heat preservation. The existing water tank is immovable, so the workpieces inside the furnace must be transported to the water tank using a conveyor. Furthermore, the current water tank uses an electric heating system, is located below the furnace and sunk underground (integrated with the foundation), resulting in a slow heating rate and very high power consumption. Poor heat preservation further increases power consumption, leading to significant energy waste. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a heat treatment water tank with improved power consumption ratio, featuring rapid heating, good heat preservation, and low energy consumption.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat treatment water tank with improved power consumption ratio, comprising a tank body and a flip-up lid, wherein the tank body and the lid are covered with a heat insulation layer; an electromagnetic induction heating coil is provided on the side wall of the tank body for heating the side wall of the tank body; and a plurality of heating rods are provided at the bottom of the lid, wherein the heating rods extend into the medium contained in the tank body for heating.

[0007] In the above technical solution, preferably, a track is provided below the box body, and several sets of pulleys are provided at the bottom of the box body, the pulleys slide along the track; a hydraulic cylinder is fixedly provided on the track, the hydraulic cylinder is provided with a push rod, the box body is provided with a connector, the connector is fixedly connected to the push rod, and the hydraulic cylinder drives the push rod to move, thereby causing the box body to slide on the track.

[0008] In the above technical solution, preferably, a hinge is provided on the rear side of the box cover and rotatably connected to the box body, a limiting member is rotatably provided on the side of the rear part of the box cover, a sliding groove is provided on the limiting member, and limiting pins are fixedly provided on the two side walls of the box body, with the limiting pins located in the sliding groove.

[0009] In the above technical solution, preferably, the outer wall of the box is provided with a plurality of heating grids, and the electromagnetic induction coils are provided on the heating grids; the outer wall of the box is provided with baffles to cover the heating grids; and the heat insulation layer is also provided between the electromagnetic induction coils and the outer wall of the box.

[0010] In the above technical solution, preferably, a number of structural beams are spaced apart on the box cover, the gaps between the structural beams form a heat insulation groove, and the heat insulation layer is provided in the heat insulation groove; a baffle is covered on the heat insulation groove.

[0011] In the above technical solution, preferably, a pin is provided at the bottom of the structural beam, a hook is connected to the pin, and the heating rod is provided on the hook.

[0012] In the above technical solution, preferably, the track is provided with a splicing seat, and the splicing seat is connected to the splicing seat of another set of tracks by bolts, thereby realizing the connection between the two sets of tracks.

[0013] In the above technical solution, preferably, a support is provided in the direction of travel of the box, and a heat treatment furnace is provided on the support; a longitudinal rail is provided on the side wall of the support, and an outward folding section is provided at the bottom end of the longitudinal rail facing the box; a roller is provided on the front side of the box cover, and when the box moves toward the bottom of the heat treatment furnace, the roller presses on the outward folding section, and then moves along the longitudinal rail, thereby causing the box cover to be opened.

[0014] In the above technical solution, preferably, the support is further provided with a lifting mechanism, the lifting mechanism is provided with a furnace cover, and the workpiece to be processed is placed on the furnace cover; the lifting mechanism drives the furnace cover to rise and fall.

[0015] This invention provides a heat treatment water tank with improved power consumption ratio. It adopts a flip-top structure and uses electromagnetic induction heating around the tank to raise the temperature of the liquid inside. The entire tank is insulated with insulation cotton, and the lid is also covered with insulation cotton for further heat preservation. This device features rapid heating and excellent heat preservation: utilizing electromagnetic induction heating results in a high heat conversion rate and provides better insulation than open or underground water tanks. The device also has low energy consumption, ensuring a stable temperature of the medium without requiring prolonged high-power heating. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of the present invention. For those skilled in the art, other embodiments and their accompanying drawings can be obtained based on the embodiments shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the track structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the bottom structure of the box body of the present invention.

[0021] Figure 5 This is a schematic diagram of the side structure of the box body of the present invention.

[0022] Figure 6 This is a schematic diagram of the bottom structure of the box cover of the present invention.

[0023] Figure 7 yes Figure 6 Enlarged schematic diagram of the structure at point B.

[0024] Figure 8 This is a schematic diagram of the device in use.

[0025] In the diagram: 1. Box body, 11. Limiting component, 111. Slide rail, 12. Pulley block, 13. Baffle, 14. Heating grid, 15. Connector, 2. Track, 21. Hydraulic cylinder, 22. Push rod, 23. Splicing seat, 3. Box cover, 31. Roller, 32. Insulation groove, 33. Structural beam, 331. Pin, 4. Heating rod, 41. Hook, 5. Bracket, 51. Longitudinal rail, 6. Heat treatment furnace, 61. Furnace cover, 7. Lifting mechanism. Detailed Implementation

[0026] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] As attached Figure 8As shown, this embodiment discloses a heat treatment water tank with improved power consumption ratio, used next to a heat treatment furnace to assist in the T6 heat treatment process. The heat treatment furnace 6 is mounted on a support 5, with a track 2 laid on the ground below. The water tank is installed on the track 2 and moved aside. A lifting mechanism 7 is also provided on the support 5. The lifting mechanism 7 drives the inverted furnace cover 61 to move up and down. When the heat treatment furnace 6 is operating, the furnace cover 61 is raised to cover the furnace opening. The workpiece to be processed is placed on the furnace cover 61.

[0028] When the water tank needs to work, it is first moved along the track to below the heat treatment furnace 6, and then the lifting mechanism 7 lowers the furnace cover 61 until it is submerged by the liquid medium in the tank 1.

[0029] As attached Figure 1 To be continued Figure 7 As shown, the water tank of this device includes a tank body 1, a flip-up lid 3, and a track mounted on the ground. An electromagnetic induction coil is installed on the side wall of the tank body 1 to heat the side wall. Several heating rods are installed at the bottom of the lid 3, extending into the medium contained within the tank body 1 for heating. These two structures are the source of the water tank's heat energy. An insulation layer is then applied to the tank body 1 and the lid 3 to reduce heat loss.

[0030] Several sets of pulleys 12 are provided at the bottom of the housing 1. The pulleys 12 slide along the track 2. In order to ensure smooth operation, at least three sets of pulleys 12 need to be pressed on the track 2 at the same time.

[0031] A hydraulic cylinder 21 is fixedly installed on the track 2. The hydraulic cylinder 21 is equipped with a push rod 22, and the housing 1 is equipped with a connector 15, which is fixedly connected to the push rod 22. The hydraulic cylinder 21 drives the push rod 22 to move, thereby causing the housing 1 to slide on the track 2. The hydraulic cylinder 21 can also be directly installed on the ground where the track 2 is located.

[0032] As attached Figure 2 As shown, a hinge is provided on the rear side of the lid 3, which is rotatably connected to the box body 1. A limiting member 11 is rotatably provided on the rear side of the lid 3, and the limiting member 11 is provided with a sliding groove 111. Limiting pins are fixedly provided on both side walls of the box body 1, and the limiting pins are located in the sliding groove 111. This arrangement allows the lid 3 to be restricted in its flipping angle by the limiting member 11 after it is flipped, thus preventing it from hitting the side wall of the box body 1.

[0033] In addition, a longitudinal rail 51 is provided on the side wall of the support 5, and the bottom end of the longitudinal rail 51 is provided with an outward fold section facing the box body 1; a roller 31 is provided on the front side of the box cover 3. When the box body 1 moves toward the bottom of the heat treatment furnace 6, the roller 31 presses against the outward fold section and then moves along the longitudinal rail 51, thereby causing the box cover 3 to be opened.

[0034] Furthermore, the length of the slide 111 needs to be limited: if it is too short, the cover 3 cannot open to a sufficient angle, affecting the entry of the furnace cover 3; if it is too long, the cover 3 will flip at too large an angle, potentially causing the heating rod to hit the inner wall of the cover 3 and be damaged. Also, after the water tank retracts, the cover 3 cannot automatically flip and close.

[0035] This device has several heating grids 14 on the outer wall of the tank 1, and each heating grid 14 is equipped with the aforementioned electromagnetic induction coil; a baffle 13 is provided on the outer wall of the tank 1 to cover the heating grids 14. This device mainly uses electromagnetic induction coils to drive the inner wall of the water tank to heat up, thereby heating the medium contained inside. In order to reduce heat loss, a heat insulation layer is also provided between the electromagnetic induction coils and the outer wall of the tank 1.

[0036] In addition, a heat insulation layer is also provided on the box cover 3. The specific structure is as follows: a number of structural beams 33 are arranged at intervals on the box cover 3, and the gaps between the structural beams 33 form a heat insulation groove 32. The heat insulation layer is provided in the heat insulation groove 32. A baffle 13 is covered on the heat insulation groove 32.

[0037] In addition to electromagnetic induction heating, this device also uses a heating rod 4 for auxiliary heating: a pin 331 is provided at the bottom of the structural beam 33, a hook 41 is connected to the pin 331, and the heating rod 4 is provided on the hook 41.

[0038] The electromagnetic induction coil and heating rod 4 can operate independently or simultaneously. Specifically, when the water tank moves below the heat treatment furnace, the tank cover 3 is opened, causing the heating rod 4 to stop working, and the temperature of the medium is utilized by the electromagnetic induction coil.

[0039] This device has multiple temperature probes installed inside the housing 1, and heating grids 14 divide the walls of housing 1 into multiple zones. The temperature probes detect the temperature of each zone, and if the temperature does not meet the requirements, the power of the coil in the corresponding heating grid 14 can be adjusted. This ensures a uniform temperature of the medium inside housing 1, thereby improving the consistency of products from the same batch.

[0040] Furthermore, the track 2 of this device is equipped with a splicing seat 23, which is bolted to the splicing seat 23 of another set of track 2, thereby connecting the two sets of track 2. This structure allows for the splicing of track of sufficient length to accommodate water tanks and heat treatment furnaces of different sizes.

[0041] This device adopts a flip-top box structure, and uses electromagnetic induction heating around the box to heat the liquid inside. The entire box is insulated with thermal insulation cotton, and the lid is also covered with thermal insulation cotton for insulation.

[0042] This device features rapid heating and excellent heat preservation: it utilizes electromagnetic induction heating, which has a high heat conversion rate and provides better heat preservation than open or underground water tanks.

[0043] This device has low energy consumption and can ensure the temperature stability of its medium without long-term high-power heating.

[0044] It will be apparent 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 invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects. The scope of the invention is defined by the appended claims, not by the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat treatment water tank with improved power consumption ratio, characterized in that: The enclosure includes a box body (1) and a flip-top lid (3), both covered with an insulation layer. An electromagnetic induction coil is installed on the side wall of the box body (1) to heat the side wall. Several heating rods are installed at the bottom of the lid (3), extending into the medium contained within the box body (1) for heating. A track (2) is installed below the box body (1), and several sets of pulleys (12) are installed at the bottom of the box body (1), sliding along the track (2). A hydraulic cylinder (21) is fixedly installed on the track (2), with a push rod (22) on the cylinder (21). A connector (15) is installed on the box body (1), and the connector (15) is fixedly connected to the push rod (22). The hydraulic cylinder (21) drives the push rod (22) to move, thereby moving the box body (1) on the track (21). 2) Sliding upwards; The rear side of the box cover (3) is provided with a hinge and is rotatably connected to the box body (1). The side of the rear part of the box cover (3) is provided with a limiting member (11). The limiting member (11) is provided with a sliding groove (111). The two side walls of the box body (1) are fixedly provided with limiting pins. The limiting pins are located in the sliding groove (111). The box body (1) is provided with a bracket (5) in the direction of travel. The heat treatment furnace (6) is provided on the bracket (5). The side wall of the bracket (5) is provided with a longitudinal rail (51). The bottom end of the longitudinal rail (51) is provided with an outward folding section facing the box body (1). The front side of the box cover (3) is provided with a roller (31). When the box body (1) moves towards the bottom of the heat treatment furnace (6), the roller (31) presses on the outward folding section and then moves along the longitudinal rail (51), thereby causing the box cover (3) to be opened.

2. The water tank according to claim 1, characterized in that: The outer wall of the box (1) is provided with a plurality of heating grids (14), and the electromagnetic induction coil is provided on the heating grids (14); the outer wall of the box (1) is provided with a baffle (13) to cover the heating grids (14); the heat insulation layer is also provided between the electromagnetic induction coil and the outer wall of the box (1).

3. The water tank according to claim 1, characterized in that: The box cover (3) is provided with several structural beams (33) spaced apart, and the gaps between the structural beams (33) form a heat insulation groove (32). The heat insulation layer is provided in the heat insulation groove (32). The heat insulation groove (32) is covered with a baffle (13).

4. The water tank according to claim 3, characterized in that: The bottom of the structural beam (33) is provided with a pin (331), and a hook (41) is connected to the pin (331). The hook (41) is provided with the heating rod (4).

5. The water tank according to claim 1, characterized in that: The track (2) is provided with a splicing seat (23), which is connected to the splicing seat (23) of another set of tracks (2) by bolts, thereby realizing the connection between the two sets of tracks (2).

6. The water tank according to claim 1, characterized in that: The support (5) is also provided with a lifting mechanism (7), and a furnace cover (61) is provided on the lifting mechanism (7). The workpiece to be processed is placed on the furnace cover (61). The lifting mechanism (7) drives the furnace cover (61) to rise and fall.