A star-shaped high-efficiency resistance heating tube structure

Abstract

The utility model discloses a star-shaped high-efficiency resistance heating tube structure, including a resistance heating outer tube, wherein a star-shaped heating shunt assembly is arranged inside the resistance heating outer tube, and a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube through the star-shaped heating shunt assembly. The utility model has a star-shaped heating shunt assembly arranged inside the resistance heating outer tube, and a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube through the star-shaped heating shunt assembly, which can greatly increase the heat exchange area, improve the heat transfer efficiency, and thus improve the heating performance, reduce the power loss, save energy and reduce emissions, and the internal star-shaped heating shunt assembly plays a supporting role, thereby enhancing the rigidity of the resistance heating tube and effectively preventing the deformation of the resistance heating tube.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric heating elements, and in particular relates to a star-shaped high-efficiency resistance heating tube structure. Background Art

[0002] The heating tube of the ordinary resistance tube heater is arranged with many hollow single-layer resistance tubes, which are then fixed in the support plate. One end or both ends of the hollow heating tube are energized, and the current passes through the resistance tube, which generates heat by using the resistance of the tube. The medium to be heated enters from one end of the heating tube, and flows out from the other end of the heating tube after heat transfer in the heating tube, thereby achieving the purpose of heating the medium. This heating method is a heating form in which the medium to be heated is in direct contact with the heating element. This heating form has high heat exchange efficiency, but this heating tube structure still has the following disadvantages:

[0003] 1. The resistance tube is only single-layered, and the heating surface only heats one surface of the inner wall of the tube. The heating area is small, resulting in low heating efficiency;

[0004] 2. The heating area of ​​the resistance tube is small. When the size is fixed, the heat load on the surface of the heating tube is large due to the limitation of the number of heating tubes, which is easy to overheat. When the size is not limited, in order to achieve the specified heating power, the number of tubes needs to be increased, resulting in an increase in the size of the equipment.

[0005] 3. The rigidity of the single-layer resistance heating tube is poor, and it is easy to deform under the influence of thermal stress at high temperature;

[0006] 4. After the single-layer resistance heating tube is connected in series, the resistance value is large. When you want to achieve the specified power, you need to use a larger voltage, which is more dangerous. If you want to reduce the resistance, you need to increase the wall thickness or increase the grouping, which increases the equipment manufacturing cost and the subsequent power distribution cost;

[0007] 5. Existing resistance heating tubes generally adopt bright tubes, the medium flow is relatively smooth, the fluid disturbance intensity is low, the heat transfer effect is poor, and the heating efficiency is reduced;

[0008] For this purpose, we propose a star-shaped high-efficiency resistance heating tube structure. Utility Model Content

[0009] The utility model aims to provide a star-shaped high-efficiency resistance heating tube structure to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a star-shaped high-efficiency resistance heating tube structure, comprising a resistance heating outer tube, wherein a star-shaped heating shunt component is arranged inside the resistance heating outer tube, and a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube through the star-shaped heating shunt component.

[0011] Preferably, the resistance heating outer tube and the star-shaped heating diverter assembly are of equal length.

[0012] Preferably, both ends of the outer circumference of the resistance heating outer tube are provided with bayonet holes engaged with the star-shaped heating shunt assembly, and the bayonet holes on the star-shaped heating shunt assembly and the resistance heating outer tube are aligned and distributed.

[0013] Preferably, the two ends of the star-shaped heating shunt assembly are respectively welded and fixed to the bayonet parts at both ends of the resistance heating outer tube, so that the two ends of the star-shaped heating shunt assembly are respectively fixed at the bayonet positions at both ends of the resistance heating outer tube.

[0014] Preferably, the star-shaped heating diversion assembly includes a plurality of resistance heating ribs, and the plurality of resistance heating ribs are distributed in a ring shape to form a star-shaped structure.

[0015] Preferably, the star-shaped heating and diverter assembly comprises a resistance heating rib plate and a resistance heating central tube;

[0016] A plurality of the resistance heating ribs are provided, and the plurality of the resistance heating ribs are arranged in a ring array on the outer peripheral side of the resistance heating center tube. The plurality of the resistance heating ribs and the resistance heating center tube form a star structure, and the resistance heating ribs and the resistance heating center tube are connected by welding.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model is provided with a star-shaped heating shunt assembly inside the resistance heating outer tube, and a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube through the star-shaped heating shunt assembly, which can greatly increase the heat exchange area, improve the heat transfer efficiency, and thus improve the heating performance, reduce the power loss, and save energy and reduce emissions;

[0019] 2. The resistance heating tube in the utility model adopts a star-shaped structure, which can effectively control the surface load of the resistance heating tube while increasing the heat exchange area, avoid the risk of overheating, and increase the service life of the heater; at the same time, it can effectively reduce the size of the heater equipment and reduce the production cost;

[0020] 3. In the utility model, a star-shaped heating shunt assembly is arranged inside the outer tube of the resistance heating, and the internal star-shaped heating shunt assembly plays a supporting role, thereby enhancing the rigidity of the resistance heating tube and effectively preventing the deformation of the resistance heating tube;

[0021] 4. The utility model adopts a resistance heating outer tube and a star-shaped heating shunt assembly to form an integral resistance heating tube, which increases the cross-sectional area of ​​the resistance heating tube, reduces the resistance of the resistance heating tube, and thus reduces the difficulty of power distribution and saves electricity costs;

[0022] 5. In the utility model, a star-shaped heating shunt assembly is arranged inside the resistance heating outer tube, and the star-shaped heating shunt assembly can increase the disturbance intensity of the medium to be heated inside the resistance heating outer tube, enhance the heat transfer effect, and improve the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0025] In the figure: 1. resistance heating outer tube; 2. star-shaped heating shunt assembly; 201. resistance heating rib plate; 202. resistance heating center tube; 3. bayonet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 2 The utility model provides a star-shaped high-efficiency resistance heating tube structure, comprising a resistance heating outer tube 1, a star-shaped heating shunt assembly 2 is arranged inside the resistance heating outer tube 1, a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube 1 through the star-shaped heating shunt assembly 2, the lengths of the resistance heating outer tube 1 and the star-shaped heating shunt assembly 2 are equal, and the outer peripheral sides of both ends of the resistance heating outer tube 1 are provided with bayonet 3 which is engaged with the star-shaped heating shunt assembly 2, the bayonet 3 on the star-shaped heating shunt assembly 2 and the resistance heating outer tube 1 are aligned and distributed, and the two ends of the star-shaped heating shunt assembly 2 are respectively engaged with the resistance heating The bayonet 3 at both ends of the heat outer tube 1 is welded and fixed, so that the two ends of the star-shaped heating shunt assembly 2 are respectively fixed at the bayonet 3 positions at both ends of the resistance heating outer tube 1, and the star-shaped heating shunt assembly 2 includes a resistance heating rib 201 and a resistance heating center tube 202; a plurality of resistance heating ribs 201 are provided, and the plurality of resistance heating ribs 201 are arranged in a ring array on the outer peripheral side of the resistance heating center tube 202, and the plurality of resistance heating ribs 201 and the resistance heating center tube 202 form a star-shaped structure, and the resistance heating ribs 201 and the resistance heating center tube 202 are connected by welding.

[0029] Embodiment 2, the star-shaped high-efficiency resistance heating tube structure provided by the utility model comprises a resistance heating outer tube 1, a star-shaped heating shunt assembly 2 is arranged inside the resistance heating outer tube 1, a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube 1 through the star-shaped heating shunt assembly 2, the lengths of the resistance heating outer tube 1 and the star-shaped heating shunt assembly 2 are equal, the outer peripheral sides of both ends of the resistance heating outer tube 1 are provided with bayonet 3 which are engaged with the star-shaped heating shunt assembly 2, the star-shaped heating shunt assembly 2 and the bayonet 3 on the resistance heating outer tube 1 are aligned and distributed, the two ends of the star-shaped heating shunt assembly 2 are respectively welded and fixed to the bayonet 3 at the two ends of the resistance heating outer tube 1, so that the two ends of the star-shaped heating shunt assembly 2 are respectively fixed at the bayonet 3 positions at the two ends of the resistance heating outer tube 1, and the star-shaped heating shunt assembly 2 comprises a plurality of resistance heating ribs 201, and the plurality of resistance heating ribs 201 are distributed in a ring to form a star-shaped structure.

[0030] Compared with Example 1, Example 2 reduces the structure of the resistance heating center tube 202 on the star-shaped heating diversion component 2, and forms a star-shaped structure with a plurality of resistance heating ribs 201 distributed in a ring shape. The resistance heating center tube 202 can be removed according to actual heating requirements, which can reduce production costs and simplify the structure.

[0031] In the utility model, a star-shaped heating shunt component 2 is arranged inside the resistance heating outer tube 1, and a plurality of shunt heating channels for the medium to be heated are formed inside the resistance heating outer tube 1 through the star-shaped heating shunt component 2. When in use, the two ends of the resistance heating outer tube 1 and the star-shaped heating shunt component 2 can be energized to generate heat as a heat source, and the medium to be heated enters from one end of the resistance heating outer tube 1, and enters into a plurality of shunt heating channels for the medium to be heated under the shunt action of the star-shaped heating shunt component 2 for shunt heating, and the disturbance intensity is enhanced, and the medium to be heated exchanges heat with the surfaces of the resistance heating outer tube 1 and the star-shaped heating shunt component 2, and then is discharged from the other end of the resistance heating outer tube 1.

[0032] Beneficial effects of the utility model:

[0033] 1. The utility model is provided with a star-shaped heating shunt assembly 2 in the resistance heating outer tube 1. The star-shaped heating shunt assembly 2 forms a plurality of shunt heating channels for the medium to be heated inside the resistance heating outer tube 1, which can greatly increase the heat exchange area, improve the heat transfer efficiency, and thus improve the heating performance, reduce the power loss, and save energy and reduce emissions;

[0034] 2. The resistance heating tube in the utility model adopts a star-shaped structure, which can effectively control the surface load of the resistance heating tube while increasing the heat exchange area, avoid the risk of overheating, and increase the service life of the heater; at the same time, it can effectively reduce the size of the heater equipment and reduce the production cost;

[0035] 3. In the utility model, a star-shaped heating shunt assembly 2 is arranged inside the resistance heating outer tube 1. The internal star-shaped heating shunt assembly 2 plays a supporting role, thereby enhancing the rigidity of the resistance heating tube and effectively preventing the deformation of the resistance heating tube;

[0036] 4. The utility model adopts a resistance heating outer tube 1 and a star-shaped heating shunt component 2 to form an integral resistance heating tube, which increases the cross-sectional area of ​​the resistance heating tube, reduces the resistance of the resistance heating tube, and thus reduces the difficulty of power distribution and saves electricity costs;

[0037] 5. In the utility model, a star-shaped heating shunt assembly 2 is arranged inside the resistance heating outer tube 1. The star-shaped heating shunt assembly 2 can increase the disturbance intensity of the medium to be heated inside the resistance heating outer tube 1, enhance the heat transfer effect, and improve the heating efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A star-shaped high-efficiency resistance heating tube structure, characterized in that: It comprises a resistance heating outer tube (1), wherein a star-shaped heating shunt assembly (2) is arranged inside the resistance heating outer tube (1), and a plurality of shunt heating channels for a medium to be heated are formed inside the resistance heating outer tube (1) through the star-shaped heating shunt assembly (2).

2. A star-shaped high-efficiency resistance heating tube structure according to claim 1, characterized in that: The resistance heating outer tube (1) and the star-shaped heating flow diversion component (2) are of equal length.

3. A star-shaped high-efficiency resistance heating tube structure according to claim 2, characterized in that: Both ends of the outer circumference of the resistance heating outer tube (1) are provided with bayonet holes (3) that engage with the star-shaped heating shunt assembly (2), and the bayonet holes (3) on the star-shaped heating shunt assembly (2) and the resistance heating outer tube (1) are aligned.

4. A star-shaped high-efficiency resistance heating tube structure according to claim 3, characterized in that: The two ends of the star-shaped heating shunt assembly (2) are respectively welded and fixed to the bayonet (3) positions at the two ends of the resistance heating outer tube (1), so that the two ends of the star-shaped heating shunt assembly (2) are respectively fixed at the bayonet (3) positions at the two ends of the resistance heating outer tube (1).

5. The star-shaped high-efficiency resistance heating tube structure according to claim 4 is characterized in that: The star-shaped heating and diversion assembly (2) comprises a plurality of resistance heating ribs (201), and the plurality of resistance heating ribs (201) are distributed in a ring shape to form a star-shaped structure.

6. A star-shaped high-efficiency resistance heating tube structure according to claim 4, characterized in that: The star-shaped heating flow diversion component (2) comprises a resistance heating rib plate (201) and a resistance heating central tube (202); A plurality of the resistance heating ribs (201) are provided, and the plurality of the resistance heating ribs (201) are arranged in a ring array on the outer peripheral side of the resistance heating central tube (202); the plurality of the resistance heating ribs (201) and the resistance heating central tube (202) form a star-shaped structure, and the resistance heating ribs (201) and the resistance heating central tube (202) are connected by welding.

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