Multi-power on-line heater

Abstract

The utility model relates to a multi-power on-line heater which comprises a heating element, a heat conductor and a fluid coil pipe, the heat conductor completely wraps the heating element and the fluid coil pipe, the fluid coil pipe is provided with a medium flow inlet and a medium flow outlet, and the heating element comprises a mounting disc and a plurality of heating pieces arranged on the mounting disc. The top end of the heating piece extends out of the mounting disc to form a wiring end, the wiring end is used for being connected with a power source, and the heating piece heats fluid substances entering the fluid coil pipe through the heat conductor after being powered on for heating.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, and in particular to a multi-power on-line heater. Background Art

[0002] The on-line electric heater is suitable for heating various gas and liquid media, and belongs to an indirect type heater, that is, the heating medium does not directly contact the heating element. The medium flows through the heat exchange tube and indirectly performs high-performance heat exchange with the electric heating element. At the same time, combined with the temperature control of the heater body and the outlet temperature, the temperature requirement of the process is finally met.

[0003] Under the existing technology, for a general on-line heater, if it is necessary to adjust the heating power, the heater needs to be removed from the entire pipeline system, replaced and then reinstalled, which is time-consuming and laborious and also affects the sealing of the pipeline. Content of the Utility Model

[0004] In view of this, the utility model provides a multi-power on-line heater, which realizes the characteristics that the heater can meet different powers and voltages by increasing the number of heating elements and changing the wiring mode of the heating elements.

[0005] The multi-power on-line heater provided by the utility model adopts the following technical scheme:

[0006] A multi-power on-line heater includes a heating element, a heat conductor and a fluid coil. The heat conductor completely wraps the heating element and the fluid coil. The fluid coil has a medium flow inlet and a medium flow outlet. The heating element includes a mounting plate and a plurality of heating parts arranged on the mounting plate. The top ends of the heating parts extend out of the mounting plate to form wiring ends, and the wiring ends are used for connecting to a power supply. After the heating parts are energized and heated, the fluid substance entering the fluid coil is heated through the heat conductor.

[0007] Optionally, the heating part is a heating resistance wire, and the heating resistance wire is bent into a U shape.

[0008] Optionally, there are three groups of the heating resistance wires, and the three groups of the heating resistance wires are distributed in a triangle at the center of the fluid coil.

[0009] Optionally, the three groups of the heating resistances are distributed in a triangle, the wiring ends of the heating resistances are connected to the wiring ends of the adjacent heating resistances, and the wiring ends of the heating resistances are connected to a power supply.

[0010] Optionally, the three groups of the heating resistances are distributed in a trident shape, the wiring ends of the heating resistances located inside are connected to each other, and the wiring ends of the heating resistances located outside are connected to a power supply.

[0011] Optionally, the three groups of the heating resistances are connected in parallel with the power supply.

[0012] Optionally, two sets of the heating resistance wires are provided, and the two sets of heating resistances are connected in parallel with the power supply.

[0013] Optionally, one set of the heating resistance wires is provided, and the heating resistance is connected in series with the power supply.

[0014] Optionally, the fluid coil is spirally arranged along the length direction of the heating part of the heating element.

[0015] Optionally, the heat conductor is aluminum metal.

[0016] In summary, the present utility model includes at least one of the following beneficial technical effects: the heat-conducting substance completely wraps the heating element and the fluid coil to realize the heat transfer between the heating element and the fluid in the coil; the heating element has a wiring terminal, and through different wiring methods, it can realize the switching of different heating powers under the same voltage and also meet the universality of 220V and 380V power supplies under the same power. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the heating element of an embodiment of the present utility model;

[0019] Figure 3 is the schematic diagram of the three-prong distribution structure of an embodiment of the present utility model;

[0020] Figure 4 is the schematic diagram of the triangular distribution structure of an embodiment of the present utility model;

[0021] Figure 5 is the schematic diagram of the parallel connection structure of three sets of heating resistances and the power supply in an embodiment of the present utility model;

[0022] Figure 6 is the schematic diagram of the parallel connection structure of two sets of heating resistances and the power supply in an embodiment of the present utility model;

[0023] Figure 7 is the schematic diagram of the distribution structure of the heating resistance and the power supply in an embodiment of the present utility model.

[0024] Description of the reference numerals: 1. Heating element; 2. Mounting plate; 3. Heat conductor; 4. Fluid coil. Detailed Embodiments

[0025] The following is a further detailed description of the present utility model with reference to the Figures 1-7 drawings.

[0026] An embodiment of the present utility model discloses a multi-power on-line heater.

[0027] Reference Figures 1-7 Figures 1-7 , a multi-power on-line heater includes a heating element, a heat conductor 3 and a fluid coil 4. The heat conductor 3 completely wraps the heating element and the fluid coil 4. The fluid coil 4 has a medium flow inlet and a medium flow outlet. The heating element includes a mounting plate 2 and a plurality of heating elements 1 arranged on the mounting plate 2. The top end of the heating element 1 extends out of the mounting plate 2 to form a terminal for connecting to a power supply. After the heating element 1 is energized and heated, it heats the fluid substance entering the fluid coil 4 through the heat conductor 3.

[0028] The fluid coil 4 is spirally arranged along the length direction of the heating part of the heating element, increasing the contact area with the heat conductor 3 and improving the heating effect. The fluid coil 4 is made of a pipe made of a heat-conducting material.

[0029] In this embodiment, the heat conductor 3 is aluminum. Aluminum has a high thermal conductivity: the thermal conductivity of aluminum is higher than that of other common metals such as iron and steel, so it can transfer heat faster and has a high heat dissipation efficiency; uniform heat dissipation: the thermal conductivity of aluminum is uniform, and it can transfer heat evenly to the entire heat dissipation surface, avoiding local overheating or overcooling, and improving the heat dissipation effect. Good workability: Aluminum is an easy-to-process material and can be made into radiators of various shapes and structures to meet different heat dissipation requirements.

[0030] In this embodiment, the mounting plate 2 is arranged on the heat conductor 3, and the heating element 1 is a heating resistance wire. The heating resistance wire is bent into a U shape, and the bent section of the heating resistance wire faces downward. The terminal of the heating resistance wire passes through the mounting plate 2 and is exposed for connecting to a power supply. After being energized, the heating resistance wire generates heat and heats the fluid coil 4 through the heat conductor 3.

[0031] According to requirements, one or more groups of heating resistance wires can be provided.

[0032] When three groups of heating resistance wires are provided, the three groups of heating resistance wires are arranged in a triangle on the mounting plate 2 and are distributed at the center of the fluid coil 4.

[0033] Among them, the three groups of heating resistances are distributed in a triangle or in a three-pronged distribution or in parallel.

[0034] When the three groups of heating resistances are distributed in a triangle, the terminals of the heating resistances are connected to the terminals of the adjacent heating resistances, and the terminals of the heating resistances are connected to the power supply.

[0035] When the three groups of heating resistances are distributed in a three-pronged manner, the terminals of the heating resistances located inside are connected to each other, and the terminals of the heating resistances located outside are connected to the power supply.

[0036] The three groups of heating resistances are in parallel with the power supply.

[0037] When there are two sets of heating resistance wires, the two sets of heating resistances are connected in parallel with the power supply.

[0038] When there is one set of heating resistance wires, the heating resistance is connected in series with the power supply.

[0039] Through the above technical solution, this heater can achieve the switching of different heating powers under the same voltage and meet the universality of 220V and 380V power supplies under the same power through different wiring methods of the heating element.

[0040] This heater is used for the on-line heating of fluid substances (such as water, paint, air, etc.). The main principle of this heater is that the heating element indirectly heats the fluid substance in the fluid coil 4 through the heat conductor 3.

[0041] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A multi-power on-line heater, characterized in that: It includes a heating element, a heat conductor, and a fluid coil. The heat conductor completely wraps the heating element and the fluid coil. The fluid coil has a medium flow inlet and a medium flow outlet. The heating element includes a mounting plate and a plurality of heating elements disposed on the mounting plate. The top ends of the heating elements extend from the mounting plate to form connection terminals, and the connection terminals are used to connect to a power source. After the heating elements are energized and heated, the heat conductor heats the fluid substance entering the fluid coil. The heating elements are heating resistance wires, and there are two sets of the heating resistance wires, and the two sets of the heating resistance wires are connected in parallel to the power source; or, there are three sets of the heating resistance wires, and the three sets of the heating resistance wires are distributed in a triangular shape or a three-pronged shape.

2. The multi-power on-line heater according to claim 1, wherein: The heating resistance wires are bent into a U shape.

3. The multi-power on-line heater according to claim 2, characterized in that: The three sets of the heating resistance wires are distributed in a triangular shape at the center of the fluid coil.

4. The multi-power on-line heater according to claim 3, characterized in that: The three sets of the heating resistances are distributed in a triangular shape, and the connection terminals of the heating resistance wires are connected to the connection terminals of the adjacent heating resistance wires, and the connection terminals of the heating resistance wires are connected to the power source.

5. The multi-power on-line heater according to claim 3, characterized in that: The three sets of the heating resistances are distributed in a three-pronged shape, and the connection terminals of the heating resistance wires located inside are connected to each other, and the connection terminals of the heating resistance wires located outside are connected to the power source.

6. The multi-power online heater according to claim 3, characterized in that: The three sets of the heating resistances are connected in parallel to the power source.

7. The multi-power online heater according to claim 1, characterized in that: The fluid coil is spirally arranged along the length direction of the heating part of the heating element.

8. The multi-power online heater according to claim 1, characterized in that: The heat conductor is aluminum metal.

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