CN210425516U

CN210425516U - High-efficiency resistance heating pipe

Info

Publication number: CN210425516U
Application number: CN201921337732.4U
Authority: CN
Inventors: 赵钧; 王春花; 赵成旺
Original assignee: Wuxi Hengye Electric Heater Equipment Co ltd
Current assignee: Wuxi Hengye Electric Heater Equipment Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-28
Anticipated expiration: 2029-08-16

Abstract

The utility model relates to a high-efficiency resistance heating pipe, which comprises a metal pipe, wherein ribs are arranged in the metal pipe, extend along the axial direction of the metal pipe and divide the inside of the metal pipe into two independent chambers; a plurality of flow equalizing holes are formed in the ribs at intervals and are communicated with the two cavities; the ribs are integrally in a spiral structure along the axial direction of the metal pipe; the utility model discloses the existence greatly increased of rib resistance tube the area that generates heat in finite space to the rib is helical structure, greatly increased the holistic heat exchange efficiency of resistance tube, and flow equalize the hole and make the medium flow even in each cavity, thereby make the medium heating even.

Description

High-efficiency resistance heating pipe

Technical Field

The utility model belongs to the technical field of the heating pipe technique and specifically relates to a high-efficient resistance heating pipe.

Background

An electric heater is an international popular electric heating device, which is used for heating, keeping warm or heating flowing liquid and gaseous media. When the medium to be heated enters the electric heater under the action of pressure and flows along the internal channel of the electric heater, high-temperature heat energy generated in the working process of the electric heating element is taken away according to the fluid thermodynamic principle, so that the temperature of the medium is increased, and the temperature of the medium meets the process requirements of users.

The electric heater is used as heating equipment, and can uniformly heat a medium, so that the heat exchange efficiency is ensured, and the heat energy utilization rate is also ensured.

The heating pipe made of the high-resistance electric heating alloy pipe is one of electric heaters, the electric heating pipe generates heat in an electric heating mode, and a medium penetrates through the heating alloy pipe to complete heat exchange. In the prior art, the effective heat exchange area of the high-resistance alloy pipe is only the inner surface of the cylindrical structure of the alloy pipe, so that the whole heat exchange effect is poor, and the energy efficiency is low.

SUMMERY OF THE UTILITY MODEL

The applicant provides a high-efficient resistance heating pipe with a reasonable structure aiming at the defects in the prior art, thereby effectively increasing the heating and heat exchange area, increasing the medium circulation path, and greatly improving the heat exchange efficiency of the medium while uniformly heating the medium.

The utility model discloses the technical scheme who adopts as follows:

a high-efficiency resistance heating pipe comprises a metal pipe, wherein ribs are arranged in the metal pipe, extend along the axial direction of the metal pipe and divide the inside of the metal pipe into two independent chambers; a plurality of flow equalizing holes are formed in the ribs at intervals and are communicated with the two cavities.

As a further improvement of the above technical solution:

the ribs are of a spiral structure integrally along the axial direction of the metal pipe.

And the rib is provided with a uniform flow hole in the length of a single thread pitch.

The cross section of rib is "a" style of calligraphy structure.

The cross section of each rib is of an S-shaped structure, two ends of each S-shaped structure extend outwards to form arc structures, and the ends of the two ends of each arc structure are fixedly mounted on the inner wall of the metal pipe.

Two axial side edges of the rib are attached to the inner wall surface of the metal pipe to form a whole.

The utility model has the advantages as follows:

the utility model has the advantages of compact and reasonable structure, convenient operation through the rib that increases spiral or S type cross-section in the tubular metal resonator, effectively increases medium circulation route in limited space, increases resistance tube heating area to the medium presents anomalous flow path such as rotation because of rib structure itself at the heat transfer in-process, makes medium heat exchange efficiency higher.

The utility model discloses still include following advantage:

due to the existence of the uniform flow holes in the ribs, the medium in the two cavities can uniformly flow, so that the medium can uniformly exchange heat, the local overhigh temperature of the pipe wall of the metal pipe caused by the nonuniform flow of the medium in the cavities can be avoided, the overall heat exchange efficiency can be further improved, and the overall service life of the device can be prolonged;

the two ends of the rib with the S-shaped section extend to form arc structures, the arc structures are fixedly mounted on the inner wall of the metal pipe, the rib and the inner wall of the metal pipe are convenient to mount and reliable in connection due to the arc structures, the included angle formed between the edge of the rib and the inner wall of the metal pipe is consistent, and the uniformity of heating during medium circulation is further promoted.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention (metal pipe is omitted).

Fig. 3 is a cross-sectional view of the present invention (embodiment one).

Fig. 4 is a cross-sectional view of the present invention (example two).

Wherein: 1. a metal tube; 2. ribs; 21. an arc-shaped structure; 3. and (6) flow equalizing holes.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and 2, the high-efficiency resistance heating tube of the present embodiment includes a metal tube 1, a rib 2 is assembled inside the metal tube 1, the rib 2 extends along an axial direction of the metal tube 1, and the rib 2 divides the inside of the metal tube 1 into two independent chambers; a plurality of flow equalizing holes 3 are formed in the ribs 2 at intervals, and the flow equalizing holes 3 are communicated with the two chambers; the existence of the holes 3 that flow equalize on the rib 2 for the medium flow in two cavities is even, thereby evenly flows, and then the medium heat transfer is even, has avoided the local high temperature of 1 pipe wall of tubular metal resonator that leads to because of the medium flow is uneven in the cavity, further improves heat transfer overall efficiency, improves the whole life-span of device.

The ribs 2 are of a spiral structure along the axial direction of the metal pipe 1.

The rib 2 is provided with a uniform flow hole 3 on a single pitch length.

Two axial side edges of the rib 2 are jointed with the inner wall surface of the metal tube 1 into a whole.

The first embodiment is as follows:

as shown in fig. 3, the cross section of the rib 2 is a line-shaped structure, and the rib 2 is a spiral structure along the axial direction of the metal pipe 1.

Example two:

as shown in fig. 4, the cross section of the rib 2 is of an "S" shaped structure, two ends of the "S" shaped structure respectively extend outward to form an arc-shaped structure 21, and two end heads of the arc-shaped structure 21 are fixedly mounted on the inner wall of the metal pipe 1; the existence of arc structure 21 makes rib 2 and metal pipe 1 inner wall between simple to operate and connect reliably, also makes the contained angle size that becomes between rib 2 edge and metal pipe 1 inner wall unanimous, has further promoted the homogeneity that is heated when the medium circulates.

The utility model discloses a theory of operation does:

connecting two ends of the resistance heating pipe with a power supply, and heating the metal pipe 1 and the ribs 2 to generate heat under the action of current; the low temperature medium gets into from the one end of tubular metal resonator 1, flows along the length direction of tubular metal resonator 1, and the medium carries out the curve flow under the spiral appearance of rib 2 or the effect of S type cross-section structure, and the heat on tubular metal resonator 1 and the rib 2 is taken away in the medium when flowing, realizes the heat transfer, and the medium after the final heating flows out from the other end of tubular metal resonator 1.

When the medium gets into tubular metal resonator 1, when the medium flow that gets into two cavities was inconsistent, the medium in two cavities realized the circulation through the equal discharge orifice 3 on the rib 2 to make the medium flow in two cavities unanimous, make the medium be heated evenly.

The utility model discloses simple structure has effectively improved resistance heating pipe's the area that generates heat to improved medium heat exchange efficiency, and made the medium flow even, and then improved device whole life-span.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. A high-efficient resistance heating pipe which characterized in that: the device comprises a metal pipe (1), wherein ribs (2) are assembled in the metal pipe (1), the ribs (2) extend along the axial direction of the metal pipe (1), and the ribs (2) divide the interior of the metal pipe (1) into two independent chambers; the rib (2) are provided with a plurality of flow equalizing holes (3) at intervals, and the flow equalizing holes (3) are communicated with two chambers.

2. The high efficiency resistance heating tube of claim 1, wherein: the ribs (2) are of a spiral structure integrally along the axial direction of the metal pipe (1).

3. The high efficiency resistance heating tube of claim 2, wherein: and a uniform flow hole (3) is formed in the length of a single thread pitch on the rib (2).

4. The high efficiency resistance heating tube of claim 1, wherein: the cross section of the rib (2) is of a straight-line-shaped structure.

5. The high efficiency resistance heating tube of claim 1, wherein: the cross section of each rib (2) is of an S-shaped structure, the two ends of each S-shaped structure extend outwards to form arc-shaped structures (21), and the ends of the two ends of each arc-shaped structure (21) are fixedly mounted on the inner wall of the metal pipe (1).

6. The high efficiency resistance heating tube of claim 1, wherein: two axial side edges of the rib (2) are attached to the inner wall surface of the metal pipe (1) to form a whole.