A dual-zone electric resistance heater

Abstract

The utility model provides a kind of double-temperature-zone resistance heater, belong to resistance heater technical field, the device includes shell one, heater, shell two and connecting electrode, the application can be realized double-temperature-zone resistance heating by multiple ways, such as the number of slot one and slot two is equal, the length of slot one is shorter than the length of slot two, so that the volume of the material distribution of the resistor of the upper and lower two sections is different, the resistance value of the upper and lower two sections is different, so as to realize different temperature, such as the length of slot one and slot two is equal, the number of slot one is less than the number of slot two, the volume of the material distribution of the resistor of the lower two sections can also be different, so as to realize different temperature, the application can realize double-temperature-zone control by single resistor, the number of electrode assembly can be reduced, the number of through-penetrating parts is reduced to reduce the risk of leakage, and the number of through-penetrating parts is reduced to reduce the number of openings of the heat preservation assembly, reduce heat loss, reduce energy consumption, better maintain temperature stability.

Description

Technical Field

[0001] This utility model relates to the field of resistance heater technology, and in particular to a dual-temperature zone resistance heater. Background Technology

[0002] A resistance heater is a device that converts electrical energy into heat energy by generating a Joule effect through the flow of electric current through a resistive material. It is widely used in aerospace, metallurgy, chemical, nuclear, and other industries. Various resistance heaters are extensively used in nuclear chemical and nuclear metallurgical equipment, photovoltaic and semiconductor equipment, and heat treatment equipment in the nuclear industry. The materials used in commonly used resistance heaters vary depending on the heating temperature and operating environment; common materials include graphite, molybdenum, tungsten, tantalum, and alloys. Resistance heaters have diverse structures, including rectangular, circular, and honeycomb mesh designs.

[0003] Some parts of high-temperature furnace equipment require different temperature zones. The current common practice is to design two or more heaters in one piece of equipment. This design not only increases the size of the equipment, but also increases the number of accessories, such as power supply, electrodes, and insulation components. This design not only takes up space, but also increases the cost of the equipment. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a dual-temperature zone resistance heater to resolve the issues present in the prior art.

[0005] This utility model provides a dual-temperature zone resistance heater, comprising: A housing 1, a housing 2 is provided at the lower end of the housing 1, a first interlayer is provided inside the housing 1, a second interlayer is provided inside the housing 2, and an installation chamber is provided in the first and second interlayers; The heater includes a heating body. The upper end of the heating body has several slots I, which are evenly distributed in a ring on the heating body. The lower end of the heating body has several slots II, which are evenly distributed in a ring on the heating body. The slots I and II are distributed alternately on the heating body. There are differences in the number or size between the slots I and II.

[0006] As a further embodiment of this utility model: the number of slot one and slot two are equal, and the length of slot one is shorter than the length of slot two.

[0007] As a further embodiment of this utility model: the lengths of slot one and slot two are equal, and the number of slot one is less than the number of slot two.

[0008] As a further embodiment of this utility model, the heating body is a long strip-shaped tubular component.

[0009] As a further embodiment of this utility model: both slot one and slot two are elongated slots.

[0010] As a further embodiment of this utility model: both slot one and slot two extend from one end of the heating body along the length of the heating body toward the other end closer to the heating body.

[0011] As a further embodiment of this utility model: a heater connecting plate is fixedly connected to the bottom surface of the heating body, and a connecting electrode is fixedly connected to the heater connecting plate.

[0012] As a further embodiment of this utility model: the end of the connecting electrode penetrates the interlayer and is disposed on the outside of the housing.

[0013] The beneficial effects of this utility model are: This invention can achieve dual-temperature zone resistance heating in various ways. For example, the number of slots one and two can be equal, but the length of slot one is shorter than the length of slot two. This results in different material distribution volumes in the upper and lower sections of the resistor, leading to different resistance values ​​and thus different temperatures. Alternatively, the lengths of slots one and two can be equal, but the number of slots one can be less than the number of slots two. This also results in different material distribution volumes in the lower two sections of the resistor, leading to different temperatures. This application can achieve dual-temperature zone control with a single resistor, reducing the number of electrode assemblies and through-holes, thereby reducing the risk of leakage. Furthermore, reducing the number of through-holes also reduces the number of openings in the insulation assembly, reducing heat loss, lowering energy consumption, and better maintaining temperature stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dual-temperature zone resistance heater installed in a heating furnace according to the present invention; Figure 2 This is a schematic diagram of the structure of a dual-temperature zone resistance heater according to the present invention; Figure 3 This is a schematic diagram of the structure of a resistance heater installed in a heating furnace according to the prior art provided by this utility model; Figure 4 This is a three-dimensional structural diagram of a resistance heater in the prior art according to the present invention.

[0015] List of reference numerals in the attached diagram: 1. Shell 1; 2. Interlayer 1; 3. Mounting chamber; 4. Heater; 41. Heating body; 42. Slot 1; 43. Slot 2; 44. Heater connecting plate; 5. Shell 2; 6. Interlayer 2; 7. Connecting electrode; 8. Shell 3; 9. Shell 4; 10. Interlayer 3; 11. Electrode 1; 12. Existing resistor 1; 13. Existing resistor 2; 131. Existing resistor body; 132. Slot 3; 133. Slot 4; 134. Connecting plate; 14. Interlayer 4; 15. Electrode 2. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 3 and Figure 4 As shown, the existing resistor structure includes: a housing 3 8, a housing 4 9 at the lower end of the housing 3 8, a sandwich 3 10 inside the housing 3 8, a sandwich 4 14 inside the housing 4 9, and mounting spaces within the sandwich 3 10 and sandwich 4 14. An existing resistor 1 12 is mounted at the upper end of the mounting space, and an existing resistor 2 13 is mounted at the lower end of the mounting space. Taking the existing resistor 2 13 as an example, the existing resistor 2 13 includes an existing resistor body 131. A slot 3 132 is formed at the upper end of the existing resistor body 131. The lower end has a slot 133. The number and size of slots 132 and 133 are the same. A connecting plate 134 is fixedly connected to the resistor body 131. Electrode 15 is fixedly connected to the connecting plate 134. Electrode 15 is set through the interlayer 14. Electrode 11 is fixedly connected to the existing resistor 12 through the interlayer 10. Since two resistors, existing resistor 12 and existing resistor 23, are set to achieve the dual temperature zone effect, electrodes are set through the shell 8 and shell 9 of the furnace body. This design not only occupies space, but also increases the equipment cost.

[0020] To solve the above problems, refer to Figures 1 to 2The present invention provides a dual-temperature zone resistance heater, including a housing 1, a housing 2 5 at the lower end of the housing 1, a sandwich layer 2 inside the housing 1, a sandwich layer 6 inside the housing 2 5, and an installation chamber 3 inside the sandwich layer 2 and the sandwich layer 6.

[0021] It also includes a heater 4, which includes a heating body 41. The upper end of the heating body 41 has several slots 42, which are evenly distributed in a ring on the heating body 41. The lower end of the heating body 41 has several slots 43, which are evenly distributed in a ring on the heating body 41. The slots 42 and 43 are distributed alternately on the heating body 41. There are differences in the number or size between the slots 42 and 43.

[0022] In this application, dual-temperature zone resistance heating can be achieved in various ways. For example, the number of slots 42 and 43 can be equal, and the length of slot 42 can be shorter than that of slot 43. This results in different material distribution volumes in the upper and lower sections of the resistor, and thus different resistance values, thereby achieving different temperatures. Alternatively, the lengths of slots 42 and 43 can be equal, but the number of slots 42 can be less than that of slot 43. This also results in different material distribution volumes in the lower two sections of the resistor, thereby achieving different temperatures. This application can achieve dual-temperature zone control with a single resistor, which can reduce the number of electrode assemblies, reduce the number of through-holes, thereby reducing the risk of leakage. Moreover, the reduction in the number of through-holes can also reduce the number of openings in the insulation assembly, reduce heat loss, reduce energy consumption, and better maintain temperature stability.

[0023] The heating body 41 is a long, tubular component. Both slot 1 42 and slot 2 43 are long, narrow slots. Both slot 1 42 and slot 2 43 extend from one end of the heating body 41 along its length toward the other end. A heater connecting plate 44 is fixedly connected to the bottom surface of the heating body 41. A connecting electrode 7 is fixedly connected to the heater connecting plate 44. The end of the connecting electrode 7 passes through the interlayer 2 6 and is located on the outside of the housing 2 5. The connecting electrode 7 can be connected to an external power source to provide power to the heater 4. In actual use, when current flows into the heating body 41 through the connecting electrode 7, due to the difference in the number or size of slot 1 42 and slot 2 43, the upper and lower sections of the heating body 41 exhibit different resistance values. According to Joule's law, under the same current, different resistances generate different amounts of heat, thus achieving a dual-temperature zone effect.

[0024] Workflow: This application can achieve dual-temperature zone resistance heating in various ways. For example, the number of slots 42 and 43 is equal, and the length of slot 42 is shorter than the length of slot 43, so that the material distribution volume of the resistors in the upper and lower sections is different, and the resistance values ​​of the upper and lower sections are different, thereby achieving different temperatures. Alternatively, the lengths of slots 42 and 43 are equal, and the number of slots 42 is less than the number of slots 43, which can also result in different material distribution volumes of the resistors in the lower two sections, thereby achieving different temperatures. This application can achieve dual-temperature zone control with a single resistor, which can reduce the number of electrode components, reduce the number of through-holes and thus reduce the risk of leakage. Moreover, the reduction in the number of through-holes can also reduce the number of openings in the insulation component, reduce heat loss, reduce energy consumption, and better maintain temperature stability.

[0025] It should be noted that not all steps and modules in the above processes and system structure diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments can be a physical structure or a logical structure. That is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0026] In the above embodiments, the hardware modules can be implemented mechanically or electrically. The present invention has been described and illustrated in detail above with reference to the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art will understand that more embodiments of the present invention can be obtained by combining the code review methods in the different embodiments described above, and these embodiments are also within the protection scope of the present invention.

Claims

1. A dual-temperature zone resistance heater, comprising: The shell is a first shell (1), and a second shell (5) is provided at the lower end of the first shell (1). A first interlayer (2) is provided inside the first shell (1), and a second interlayer (6) is provided inside the second shell (5). An installation chamber (3) is provided inside the first interlayer (2) and the second interlayer (6); characterized in that it further includes: Heater (4), heater (4) includes heating body (41), heating body (41) has several slots (42) at the upper end, several slots (42) are evenly distributed in a ring on heating body (41), heating body (41) has several slots (43) at the lower end, several slots (43) are evenly distributed in a ring on heating body (41), slots (42) and slots (43) are distributed alternately on heating body (41), there is a difference in quantity or size between slots (42) and slots (43).

2. The dual-temperature zone resistance heater according to claim 1, characterized in that, The number of slots 1 (42) and slot 2 (43) are equal, and the length of slot 1 (42) is shorter than the length of slot 2 (43).

3. A dual-temperature zone resistance heater according to claim 1, characterized in that, The lengths of slot 1 (42) and slot 2 (43) are equal, but the number of slot 1 (42) is less than the number of slot 2 (43).

4. A dual-temperature zone resistance heater according to claim 1, characterized in that, The heating body (41) is a long strip-shaped tubular component.

5. A dual-temperature zone resistance heater according to claim 1, characterized in that, Both slot one (42) and slot two (43) are long strip slots.

6. A dual-temperature zone resistance heater according to claim 4, characterized in that, Both slot one (42) and slot two (43) extend from one end of the heating body (41) along the length of the heating body (41) toward the other end of the heating body (41).

7. A dual-temperature zone resistance heater according to claim 1, characterized in that, A heater connecting plate (44) is fixedly connected to the bottom surface of the heating body (41), and a connecting electrode (7) is fixedly connected to the heater connecting plate (44).

8. A dual-temperature zone resistance heater according to claim 7, characterized in that, The end of the connecting electrode (7) passes through the second interlayer (6) and is located on the outside of the second housing (5).

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