Heat exchanger with heating function

Abstract

The utility model relates to a heat exchanger with heating function, including the middle sheet assembly, the sheet assembly is by multiple sets of sheet combination, the sheet assembly is spliced by multiple sets of same structure assembly, every structure assembly includes two adjacent flat plates and a flow channel plate, wherein the edge of two adjacent flat plates is fixed through the connecting piece, the flow channel plate is located below two flat plates, the next structure assembly is arranged in the directly below of the last structure assembly, the adjacent two flat plates between are equipped with resistance wire, and the resistance wire passes through between two flat plates of all sheet assemblies and meanders and spirals, and the flow channel plate forms two medium flow channels with two flat plates above and below. The utility model can heat hot medium and cold medium simultaneously after resistance wire heating, and not purely through hot medium to heat the cold medium needing heat exchange, so that two channels heat the cold medium needing heat exchange, improve the heat exchange effect of heat exchanger, and shorten the heat exchange time.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a heat exchanger with heating function. Background Technology

[0002] A heat exchanger is a highly efficient and energy-saving heat exchange device with many advantages such as high heat transfer efficiency, light weight, small footprint, and easy maintenance. It is mainly used in petroleum, chemical, beverage, pharmaceutical, urban central heating, light industry, textile, papermaking, oil and grease, shipbuilding, metallurgy, power (including nuclear power plants) and offshore engineering fields.

[0003] Traditional heat exchangers exchange heat using only two media. One medium transfers its temperature to a plate and then to another medium. This requires the liquid to flow sufficiently across the plates for heat exchange to occur. However, this method is inefficient and takes a long time. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a heat exchanger with heating function to improve heat exchange efficiency.

[0005] The purpose of this utility model is achieved as follows: A heat exchanger with heating function includes a central plate assembly, which is composed of multiple sets of plates. A front plate and a rear plate are fixed to the front and rear ends of the plate assembly. Medium passage holes are provided on the front and rear plates. The plate assembly is assembled from multiple identical structural components. Each structural component includes two adjacent flat plates and a flow channel plate. The edges of the two adjacent flat plates are fixed by connectors. The flow channel plate is located below the two flat plates. The next structural component is located directly below the previous structural component. A resistance wire is installed between two adjacent flat plates. The resistance wire passes between the two flat plates of all plate assemblies and meanders. Two medium flow channels are formed between the flow channel plate and the upper and lower flat plates, respectively used to introduce two different heat exchange media.

[0006] The two ends of the resistor wire are connected to the connector, and the connector is connected to an external power source to conduct electricity, causing the resistor wire to heat up.

[0007] The resistance wire is used as a heating element and is made of Ni80Cr20 sheet material.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This invention adds a heatable plate assembly to the plate assembly and uses the resistance wire in the plate assembly as a heating wire. After the resistance wire is heated, it can heat both the hot and cold media simultaneously, instead of heating the cold media that needs heat exchange only through the hot media. This two-way heat exchange improves the heat exchanger's heat exchange efficiency and shortens the heat exchange time. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a heat exchanger with heating function according to this utility model.

[0010] Figure 2 for Figure 1 A schematic diagram of the middle plate assembly.

[0011] Figure 3 for Figure 2 Diagram showing the arrangement of the resistance wires.

[0012] The components include: 1. Plate assembly; 2. Front end plate; 3. Rear end plate; 4. Medium through hole; 5. Flat plate; 6. Flow channel plate; 7. Resistance wire; 8. Connector; 9. Medium flow channel. Detailed Implementation

[0013] See Figure 1 This utility model relates to a heat exchanger with heating function, including a middle plate assembly 1, which is composed of multiple sets of plates. The front end plate 2 and the rear end plate 3 are fixed at the front and rear ends of the plate assembly 1. The front end plate 2 and the rear end plate 3 can be fixed by welding to form a brazed heat exchanger or connected by bolts to form a plate heat exchanger. The front end plate 2 and the rear end plate 3 are provided with medium through holes 4, which are used to pass through two media.

[0014] See Figure 2 The plate assembly 1 is composed of multiple identical structural components. Each structural component includes two adjacent flat plates 5 and a flow channel plate 6. The edges of the two adjacent flat plates 5 are fixed by connectors, and the flow channel plate 6 is located below the two flat plates 5. The next structural component is placed directly below the previous structural component. In this way, multiple structural components are stacked on top of each other, and finally the plate assembly 1 is fixed by the front end plate 2 and the rear end plate 3.

[0015] See Figure 3 A resistance wire 7 is installed between two adjacent plates 5. The resistance wire 7 is used as a heating wire and is made of Ni80Cr20 plate. The resistance wire 7 passes between the two plates 5 of all plate assemblies 1 and meanders and coils. Both ends are connected to the connector 8. The connector 8 is connected to an external power source to conduct electricity, thereby making the resistance wire 7 heat up. Two medium flow channels 9 are formed between the flow channel plate 6 and the upper and lower plates 5, which are used to introduce two different heat exchange media respectively.

[0016] After the resistance wire heats up, it can heat both the hot and cold media simultaneously, instead of heating the cold media that needs heat exchange solely through the hot media. This dual approach to heat exchange improves the heat exchanger's efficiency and shortens the heat exchange time.

[0017] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A heat exchanger with heating function, characterized in that: The system includes a central plate assembly, which is composed of multiple plates. A front plate and a rear plate are fixed to the front and rear ends of the plate assembly, and medium through holes are provided on the front and rear plates. The plate assembly is composed of multiple identical structural components. Each structural component includes two adjacent flat plates and a flow channel plate. The edges of the two adjacent flat plates are fixed by connectors. The flow channel plate is located below the two flat plates. The next structural component is located directly below the previous structural component. A resistance wire is installed between the two adjacent flat plates. The resistance wire passes through the two flat plates of all plate assemblies and meanders. Two medium flow channels are formed between the flow channel plate and the upper and lower flat plates, respectively used to introduce two different heat exchange media.

2. A heat exchanger with heating function according to claim 1, characterized in that: The two ends of the resistor wire are connected to the connector, and the connector is connected to an external power source to conduct electricity, causing the resistor wire to heat up.

3. A heat exchanger with heating function according to claim 1, characterized in that: The resistance wire is used as a heating element and is made of Ni80Cr20 material.

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