Flat bottom heat exchange pipeline and electromagnetic heating water heater

Abstract

A flat-bottom heat exchange pipeline and an electromagnetic heating water heater have good electromagnetic heating efficiency, and include a bottom plate and a tube shell that are welded and fixed to each other. The tube shell is provided with a welding protrusion that fits the bottom plate, a flow channel groove, and a water inlet and a water outlet that are connected to the flow channel groove. The bottom plate covers the flow channel groove to form a flow channel, and the bottom plate has a flat bottom surface.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to a flat-bottom heat exchange pipeline and an electromagnetic heating water heater. Background Art

[0002] Prior art, such as Chinese patent publication CN204513738U, discloses an electromagnetic induction instantaneous water heater with separated water and electricity. The device comprises an upper and lower housing, which are press-fitted together with an insulating plate positioned at the mating surface. The upper housing houses a heat conducting water pan (corresponding to the flat-bottomed heat exchange piping described herein) and a low-voltage control circuit board. The lower housing houses a high-voltage main circuit board and an electromagnetic coil, which faces the bottom of the heat conducting water pan. The principle is that the magnetic field generated by the alternating current in the electromagnetic coil induces eddy currents in the heat conducting water pan. These eddy currents generate intense friction, converting electromagnetic energy into heat, thereby heating the water.

[0003] In the prior art, the heat conducting water pan is formed by spiraling a round tube. Since the heat conducting water pan is not flat, it cannot fully absorb the energy emitted by the electromagnetic coil. Utility Model Content

[0004] The purpose of the utility model is to provide a flat-bottom heat exchange pipeline and an electromagnetic heating water heater, which have good electromagnetic heating efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a flat-bottom heat exchange pipeline, including a base plate and a tube shell welded and fixed to each other, the tube shell is provided with a welding protrusion fitted with the base plate, a flow channel groove, and a water inlet and a water outlet connected to the flow channel groove, the base plate covers the flow channel groove to form a flow channel, and the base plate has a flat bottom surface.

[0006] In one embodiment of the present invention, a water inlet pipe and a water outlet pipe connected to the water inlet and the water outlet respectively are provided on a side of the tube shell facing away from the bottom plate.

[0007] In one embodiment of the present invention, connecting blocks are respectively provided between the water inlet pipe, the water outlet pipe, the water inlet, and the water outlet, and the connecting blocks are fixed to the tube shell by welding.

[0008] In one embodiment of the present invention, the flow channel is serpentine.

[0009] In one embodiment of the present invention, the flow channel is spiral.

[0010] In one embodiment of the present invention, a plurality of welding protrusions extending toward the bottom plate are provided in the flow channel groove, and the welding protrusions are in an inverted cup shape.

[0011] In one embodiment of the present invention, the water inlet and the water outlet are located at the lower part of the tube shell, the water inlet pipe and the water outlet pipe extend downward from the water inlet and the water outlet respectively, and the water inlet pipe and the water outlet pipe are parallel to each other.

[0012] In one embodiment of the present invention, the bottom plate is circular, and the tube shell has a welded frame of an annular plate structure, the welded frame is attached to the bottom plate, and the welded frame is welded to the bottom plate. In other embodiments, the bottom plate can be square, octagonal, or hexagonal.

[0013] In one embodiment of the present invention, the bottom plate and the tube shell are made of stainless steel that can be attracted by magnets.

[0014] The utility model also provides an electromagnetic heating water heater, comprising any one of the above-mentioned flat-bottom heat exchange pipelines and the electromagnetic coil, wherein the bottom plate is located between the tube shell and the electromagnetic coil.

[0015] In the utility model, the bottom plate has a flat bottom surface and has good electromagnetic heating efficiency when electromagnetic induction is generated with the electromagnetic coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of the flat-bottom heat exchange pipeline of the first embodiment of the present utility model.

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the flat bottom heat exchange pipeline. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See Figure 1-2 The flat-bottom heat exchange pipeline of the first embodiment of the present invention includes a bottom plate 1 and a tube shell 2 welded to each other. The tube shell 2 is provided with a welding protrusion 21 and a flow channel groove 20 that fit with the bottom plate 1, and a water inlet 201 and a water outlet 202 that are connected to the flow channel groove 20. The bottom plate 1 covers the flow channel groove 20 to form a flow channel, and the bottom plate 1 has a flat bottom surface.

[0020] The side of the tube shell 2 facing away from the base plate 1 is equipped with a water inlet pipe 3 and a water outlet pipe 4, connected to the water inlet 201 and the water outlet 202, respectively. Connecting blocks 5 are installed between the water inlet pipe 3 and the water outlet pipe 4 and the water inlet 201 and the water outlet 202, respectively. The connecting blocks 5 are welded to the tube shell 2. The tube shell 2 is formed by stamping and brazed to the base plate 1. To minimize deformation, brazing paste is applied to the welding protrusions 21 and the welding bumps, and then the base plate is placed and heated in a vacuum environment to complete the welding. This prevents deformation caused by the rising temperature of the gas in the flow channel.

[0021] The welding protrusion 21 includes a welding frame 211 , a welding protrusion 212 and a protruding strip 213 for separating and forming the flow channel groove 20 .

[0022] The flow channel is serpentine-shaped. A plurality of welding protrusions 212 extending toward the bottom plate 1 are provided in the flow channel groove 20, and the welding protrusions 212 are in an inverted cup shape.

[0023] The water inlet 201 and the water outlet 202 are located at the lower part of the tube shell 2. The water inlet pipe 3 and the water outlet pipe 4 extend downward from the water inlet 201 and the water outlet 202 respectively. The water inlet pipe 3 and the water outlet pipe 4 are parallel to each other, which facilitates the connection of external pipelines.

[0024] The base plate 1 is circular, and the tube shell 2 has a welded frame 211 with an annular plate structure. The welded frame 211 is attached to the base plate 1 and welded to the base plate 1. In other embodiments, the base plate 1 can be square, octagonal, or hexagonal. In other embodiments, the flow channel is spiral.

[0025] The bottom plate 1 and the tube shell 2 are made of stainless steel that can be attracted by magnets.

[0026] The utility model also provides an electromagnetic heating water heater, comprising the above-mentioned flat-bottom heat exchange pipeline and electromagnetic coil, wherein the bottom plate 1 is located between the tube shell 2 and the electromagnetic coil.

[0027] In the present invention, the bottom plate 1 has a flat bottom surface and has good electromagnetic heating efficiency when electromagnetically inducing with the electromagnetic coil.

[0028] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat bottom heat exchange pipeline, characterized in that: It includes a bottom plate and a tube shell which are welded and sealed to each other. The tube shell is provided with a welding protrusion which fits the bottom plate, a flow channel groove, a water inlet and a water outlet which are connected to the flow channel groove. The bottom plate covers the flow channel groove to form a flow channel. The bottom plate has a flat bottom surface.

2. The flat bottom heat exchange pipeline according to claim 1, characterized in that: A water inlet pipe and a water outlet pipe connected to the water inlet and the water outlet respectively are arranged on a side of the tube shell facing away from the bottom plate.

3. The flat bottom heat exchange pipeline according to claim 2, characterized in that: Connecting blocks are respectively arranged between the water inlet pipe, the water outlet pipe and the water inlet and the water outlet, and the connecting blocks are fixed to the tube shell by welding.

4. The flat bottom heat exchange pipeline according to claim 3, characterized in that: The flow channel is serpentine.

5. The flat bottom heat exchange pipeline according to claim 1, characterized in that: The flow channel is spiral-shaped.

6. The flat bottom heat exchange pipeline according to claim 4, characterized in that: A plurality of welding protrusions extending toward the bottom plate are arranged in the flow channel groove, and the welding protrusions are in an inverted cup shape.

7. The flat bottom heat exchange pipeline according to claim 6, characterized in that: The water inlet and the water outlet are located at the lower part of the tube shell, the water inlet pipe and the water outlet pipe extend downward from the water inlet and the water outlet respectively, and the water inlet pipe and the water outlet pipe are parallel to each other.

8. The flat bottom heat exchange pipeline according to claim 7, characterized in that: The bottom plate is circular, and the tube shell has a welding frame with an annular plate structure. The welding frame is fitted with the bottom plate, and the welding frame is welded and fixed to the bottom plate.

9. The flat bottom heat exchange pipeline according to claim 8, characterized in that: The bottom plate and the tube shell are made of stainless steel that can be attracted by magnets.

10. An electromagnetic heating water heater, characterized in that: It comprises the flat-bottom heat exchange pipeline and electromagnetic coil as described in any one of claims 1 to 9, wherein the bottom plate is located between the tube shell and the electromagnetic coil.

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