CN215491244U

CN215491244U - Spiral corrugated heat exchange tube for high-speed rail heat exchanger

Info

Publication number: CN215491244U
Application number: CN202023190748.2U
Authority: CN
Inventors: 蔡国丁
Original assignee: Changzhou Hengding Track Technology Co ltd
Current assignee: Changzhou Hengding Track Technology Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2022-01-11
Anticipated expiration: 2030-12-26

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to a spiral corrugated heat exchange tube for a high-speed rail heat exchanger, which comprises: the heat exchange tube comprises a heat exchange tube body, wherein the inner wall of the heat exchange tube body is fixedly connected with the inner wall of the tube body, the inner side of the heat exchange tube body is fixedly connected with a heat exchange tube liner, the heat exchange tube liner comprises outer spiral grains, rectangular through holes and inner wall corrugations, the outer spiral grains are arranged outside the heat exchange tube liner, and the rectangular through holes are arranged outside the heat exchange tube liner.

Description

Spiral corrugated heat exchange tube for high-speed rail heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a spiral corrugated heat exchange tube for a high-speed rail heat exchanger.

Background

Nowadays, heat exchangers are widely applied to the industries of central heating, air conditioning, electronics and the like. The heat exchanger is also made of various materials, such as copper, titanium, stainless steel, copper-nickel alloy and the like. Most of heat exchangers adopt a common copper pipe as a heat exchange device, the structure is simple, the processing is convenient, but the heat exchange efficiency of unit area is small, the metal consumption is large, the manufacturing cost is high, and most of heat exchange elements used by the known heat exchangers and air coolers are light pipes or light pipes which are processed into threaded pipes.

The existing spiral corrugated heat exchanger has some problems more or less when in use, for example, when the inner side of the heat exchanger is condensed or boiled, the inner side is not enough for strengthening heat transfer, so the length and the heat exchange area of a heat exchange pipe need to be increased, the volume of the equipment needs to be increased, the volume of the equipment is increased, and the manufacturing cost required by the equipment can be increased.

Therefore, the spiral corrugated heat exchange tube for the high-speed rail heat exchanger is provided.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the technical problems in the background art, the utility model provides a spiral corrugated heat exchange tube for a high-speed rail heat exchanger, which has the characteristic of reducing the manufacturing cost.

(II) technical scheme

In order to solve the technical problem, the utility model provides a spiral corrugated heat exchange tube for a high-speed rail heat exchanger, which comprises: the heat exchange tube comprises a heat exchange tube body, wherein the inner wall of the heat exchange tube body is fixedly connected with the inner wall of the tube body, the inner side of the heat exchange tube body is fixedly connected with a heat exchange tube liner, the heat exchange tube liner comprises outer spiral grains, rectangular through holes and inner wall corrugations, the outer part of the heat exchange tube liner is provided with the outer spiral grains, the outer part of the heat exchange tube liner is provided with the rectangular through holes, the inner part of the heat exchange tube liner is provided with the inner wall corrugations, the inner wall of the heat exchange tube liner is fixedly provided with annular fins, the upper end and the lower end of the heat exchange tube body are respectively in threaded connection with a tube body connecting port, the outer part of the tube body connecting port is respectively and fixedly connected with arc covers, the number of the arc covers is two, the inner part of the arc cover positioned above the utility model is fixedly connected with a first conical cylinder, the inner part of the arc cover positioned below the utility model is fixedly connected with a second conical cylinder, and the inner parts of the first conical cylinder and the second conical cylinder are fixedly connected with a trapezoidal cavity,

preferably, the inner side of the inner wall of the tube body is provided with spiral grains, the spiral grains arranged on the inner side of the inner wall of the tube body are in contact with the outer wall of the inner container of the heat exchange tube, and an interlayer is formed between the inner wall of the tube body and the inner container of the heat exchange tube.

Preferably, the outer wall of the heat exchange tube inner container is rolled with outer spiral threads, the spiral threads formed on the inner side of the inner wall of the tube body limit the outer spiral threads, the inner wall of the heat exchange tube inner container is rolled with inner wall corrugations, and the intervals between the inner wall corrugations are 10 mm.

Preferably, a plurality of rectangular through holes are formed in the outer portion of the heat exchange tube inner container, annular fins are rolled in the inner portion of the heat exchange tube inner container, and the annular fins are arranged in intervals of the rectangular through holes.

Preferably, the first conical cylinder is hollow, a circular through hole is formed in the middle of the pipe body connecting port, and the first conical cylinder is communicated with the inner container of the heat exchange pipe.

Preferably, the second tapered cylinder is hollow, a trapezoidal cavity is arranged at the end with the smaller caliber of the second tapered cylinder, and the caliber of the trapezoidal cavity located outside the second tapered cylinder is larger than the caliber located inside the second tapered cylinder.

The technical scheme of the utility model has the following beneficial technical effects:

1. according to the utility model, the heat exchange tube body and the heat exchange tube inner container are arranged, when a process medium flows in the heat exchange tube, the heat exchange tube inner container is communicated with the heat exchange tube body by arranging the through holes on the inner wall of the heat exchange tube, the inner wall of the heat exchange tube body is provided with the spiral grains, the inner wall of the heat exchange inner container is provided with the annular ripples, the outer wall of the heat exchange inner container is provided with the spiral outer grains, and the gap is reserved between the heat exchange inner container and the heat exchange tube body, so that the heat exchange area is increased without increasing the volume of equipment.

2. According to the utility model, the first conical cylinder and the second conical cylinder are respectively arranged in the upper arc cover and the lower arc cover, and the speed of the fluid entering the pipe body is increased by utilizing the principle of hole arrival of the trapezoidal cavity in the arc cylinder, namely after the fluid enters from one end of the conical cylinder, the fluid speed is higher along with the smaller caliber.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the inner container of the heat exchange tube of the present invention;

FIG. 3 is a schematic view of the inner wall structure of the tube body according to the present invention;

FIG. 4 is a schematic view of a second conical drum structure according to the present invention.

Reference numerals:

1. a heat exchange tube body; 2. the inner wall of the pipe body; 3. the heat exchange tube liner; 31. external spiral threads; 32. a rectangular through hole; 33. the inner wall is corrugated; 4. an annular fin; 5. a pipe body connecting port; 6. an arc-shaped cover; 7. a first conical cylinder; 8. a second tapered barrel; 9. a trapezoidal cavity.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 4, the present invention provides a spiral corrugated heat exchange tube for a high-speed rail heat exchanger, comprising: the heat exchange tube comprises a heat exchange tube body 1, wherein the inner wall of the heat exchange tube body 1 is fixedly connected with a tube body inner wall 2, the tube body inner wall 2 enables fluid to be contained and exchange heat, spiral grains are arranged on the inner side of the tube body inner wall 2, the spiral grains increase the heat exchange area, the spiral grains arranged on the inner side of the tube body inner wall 2 are in contact with the outer wall of a heat exchange tube inner container 3, friction is generated after the contact, the heat exchange tube inner container 3 is not easy to shift, an interlayer is formed between the tube body inner wall 2 and the heat exchange tube inner container 3, the heat exchange area is increased by the interlayer, the inner side of the heat exchange tube body 1 is fixedly connected with the heat exchange tube inner container 3, the heat exchange tube inner container 3 is convenient to exchange heat with the fluid, the heat exchange tube inner container 3 comprises outer spiral grains 31, rectangular through holes 32 and inner wall corrugations 33, the outer spiral grains 31 are arranged on the outer portion of the heat exchange tube inner container 3, the rectangular through holes 32 are arranged on the outer portion of the heat exchange tube inner container 3, the rolling of the outer wall of heat exchange tube inner bag 3 has outer spiral line 31, the spiral line that 2 inboards of body inner wall were seted up carries on spacingly to outer spiral line 31, outer spiral line 31 has increased heat transfer area, the inside rolling system of heat exchange tube inner bag 3 has inner wall ripple 33, inner wall ripple 33 has increased fluidic area of contact, the interval between inner wall ripple 33 is 10mm, the fixed annular fin 4 that is provided with of inner wall of heat exchange tube inner bag 3, there is body connector 5 at the upper and lower both ends of heat exchange tube 1 respectively threaded connection, body connector 5 outside is fixedly connected with arc lid 6 respectively, the quantity of arc lid 6 is two, be located the utility model discloses the inside fixedly connected with first cone 7 of arc lid 6 of top, be located the utility model discloses the inside fixedly connected with second cone 8 of arc lid 6 of below, the inside fixedly connected with trapezoidal cavity 9 of first cone 7 and second cone 8.

Specifically, a plurality of rectangular through holes 32 have been seted up to the outside of heat exchange tube inner bag 3, and inside rectangular through hole 32 made things convenient for the fluid to get into the intermediate layer, annular fin 4 had been rolled to the inside of heat exchange tube inner bag 3, and annular fin 4 has increased the area of contact with the fluid, and annular fin 4 installs in rectangular through hole 32's interval.

Specifically, the inside of a first toper section of thick bamboo 7 is cavity, makes things convenient for the fluid to get into the inside of heat exchange tube inner bag 3, and circular through-hole has been seted up at the middle part of body connector 5, and circular through-hole makes things convenient for the fluid to get into, a first toper section of thick bamboo 7 and heat exchange tube inner bag 3 intercommunication.

Specifically, the inside of the second conical cylinder 8 is hollow, a trapezoidal cavity 9 is arranged at one end of the second conical cylinder 8 with a smaller caliber, external air and the like enter the conical cylinder through the trapezoidal cavity 9 to bring pressure to fluid, so that the movement of the fluid is accelerated, and the caliber of the trapezoidal cavity 9, which is located outside the second conical cylinder 8, is larger than the caliber of the trapezoidal cavity 9, which is located inside the second conical cylinder 8.

The working principle and the using process of the utility model are as follows: at first fluid gets into with higher speed from first toper section of thick bamboo 7, along with first toper section of thick bamboo 7 inner wall bore is more and more littleer, the inside that the arc lid 6 was got into with higher speed to the fluid, get into the inner wall of heat exchange tube inner bag 3 afterwards, the rectangle through-hole 32 that the fluid was seted up through heat exchange tube inner bag 3 outer wall enters into in the crack between heat exchange tube inner bag 3 and the body inner wall 2, the inboard of body inner wall 2 is provided with the spiral line, the outside of heat exchange tube inner bag 3 is provided with outer spiral line, thereby the heat transfer area has been increased, the fluid is through the inside annular fin 4 that sets up of heat exchange tube inner bag 3, the heat transfer area has also been increased, the fluid flows from second toper section of thick bamboo 8 that the bottom set up afterwards.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A spiral corrugated heat exchange tube for a high-speed rail heat exchanger comprises: the heat exchange tube body (1) is characterized in that the inner wall of the heat exchange tube body (1) is fixedly connected with a tube body inner wall (2), the inner side of the heat exchange tube body (1) is fixedly connected with a heat exchange tube liner (3), the heat exchange tube liner (3) comprises outer spiral grains (31), rectangular through holes (32) and inner wall corrugations (33), the outer spiral grains (31) are arranged outside the heat exchange tube liner (3), the rectangular through holes (32) are arranged outside the heat exchange tube liner (3), the inner wall corrugations (33) are arranged inside the heat exchange tube liner (3), annular fins (4) are fixedly arranged on the inner wall of the heat exchange tube liner (3), the upper end and the lower end of the heat exchange tube body (1) are respectively in threaded connection with a tube body (5), the outer portions of the tube body connecting ports (5) are respectively and fixedly connected with arc-shaped covers (6), and the number of the arc-shaped covers (6) is two, the inner part of the arc-shaped cover (6) above the inner part of the arc-shaped cover is fixedly connected with a first conical cylinder (7), the inner part of the arc-shaped cover (6) below the inner part of the arc-shaped cover is fixedly connected with a second conical cylinder (8), and the inner parts of the first conical cylinder (7) and the second conical cylinder (8) are fixedly connected with a trapezoidal cavity (9).

2. The spiral corrugated heat exchange tube for the high-speed rail heat exchanger according to claim 1, wherein the inner side of the tube body inner wall (2) is provided with spiral grains, the spiral grains formed on the inner side of the tube body inner wall (2) are in contact with the outer wall of the heat exchange tube liner (3), and an interlayer is formed between the tube body inner wall (2) and the heat exchange tube liner (3).

3. The spiral corrugated heat exchange tube for the high-speed rail heat exchanger according to claim 1, wherein the outer wall of the heat exchange tube liner (3) is rolled with outer spiral threads (31), the spiral threads formed on the inner side of the tube body inner wall (2) limit the outer spiral threads (31), the inside of the heat exchange tube liner (3) is rolled with inner wall corrugations (33), and the interval between the inner wall corrugations (33) is 10 mm.

4. The spiral corrugated heat exchange tube for the high-speed rail heat exchanger according to claim 1, wherein a plurality of rectangular through holes (32) are formed in the outer portion of the heat exchange tube liner (3), annular fins (4) are rolled in the inner portion of the heat exchange tube liner (3), and the annular fins (4) are installed in intervals of the rectangular through holes (32).

5. The spiral corrugated heat exchange tube for the high-speed rail heat exchanger according to claim 1, wherein the first conical tube (7) is hollow, a circular through hole is formed in the middle of the tube body connecting port (5), and the first conical tube (7) is communicated with the heat exchange tube liner (3).

6. The spiral corrugated heat exchange tube for the high-speed rail heat exchanger according to claim 1, wherein the second tapered tube (8) is hollow, a trapezoidal cavity (9) is arranged at the end with the smaller caliber of the second tapered tube (8), and the caliber of the trapezoidal cavity (9) located outside the second tapered tube (8) is larger than the caliber located inside the second tapered tube (8).