CN218097326U

CN218097326U - High-efficiency heat exchanger based on foam metal enhanced heat exchange

Info

Publication number: CN218097326U
Application number: CN202221637794.9U
Authority: CN
Inventors: 李乐; 杨杰; 杨俊�; 赵李超
Original assignee: Zhejiang Qianjin Heating Ventilation Technology Co ltd
Current assignee: Zhejiang Qianjin Heating Ventilation Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-12-20
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a high-efficiency heat exchanger based on foam metal enhanced heat exchange aiming at the defect that the heat exchange tube with foam metal is easy to be damaged due to vibration in the prior art, belonging to the technical field of heat exchangers, comprising a shell and a plurality of heat exchange tubes arranged in the shell, wherein, the two ends of the shell are hermetically connected with tube plates, and the heat exchange tubes are arranged between the two tube plates; the heat exchange tube comprises an inner tube and a foam metal layer, a buffer mechanism is installed between the heat exchange tubes and comprises connecting rings sleeved outside the heat exchange tube, the inner wall of each connecting ring is fixedly provided with a fixing protrusion extending into the foam metal layer, and an elastic buffer piece is arranged between every two adjacent connecting rings. This heat exchanger sets up buffer gear between hot exchange pipe, can carry out flexonics between the hot exchange pipe, not only can promote overall structure stability, still has the shock-absorbing capacity, can reduce the impaired degree of foam metal on the hot exchange pipe to the life of extension heat exchanger.

Description

High-efficiency heat exchanger based on foam metal enhanced heat exchange

Technical Field

The utility model belongs to the technical field of heat exchanger, concretely relates to high-efficient heat exchanger based on heat transfer is reinforceed to foam metal.

Background

The heat exchanger is a device for realizing heat transfer between cold and hot fluids, and plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production. Foam metal has great heat transfer area, the heat exchange performance of promotion heat exchanger that the adoption has foam metal's hot exchange pipe can be very big, inside hot exchange pipe can produce certain vibration after the heat exchanger steady operation, but the foam metal material is softer, foam metal leads to impaired because of vibrations easily, to this problem, can set up the supporting mechanism who is used for supporting fixed heat exchange tube in the shell, thereby reduce the vibrations that can take place of hot foot ring canal, but supporting mechanism generally is rigid connection, make foam metal very easily impaired with supporting mechanism's junction, thereby can reduce hot exchange tube's heat dispersion, lead to hot exchange tube's life to descend.

Disclosure of Invention

The utility model discloses hot exchange pipe to having foam metal among the prior art provides a high-efficient heat exchanger based on heat transfer is reinforceed to foam metal easily because of the impaired drawback of vibrations, and this heat exchanger sets up buffer gear between hot exchange pipe, can carry out flexonics between the hot exchange pipe, not only can promote overall structure stability, still has the shock-absorbing capacity, can reduce the impaired degree of foam metal on the hot exchange pipe to the life of extension heat exchanger.

The invention aims to be realized by the following technical scheme: a high-efficiency heat exchanger based on foam metal enhanced heat exchange comprises a shell and a plurality of heat exchange tubes arranged in the shell, wherein tube plates are hermetically connected to two ends of the shell, end covers are hermetically connected to the outer sides of the tube plates, and the heat exchange tubes are arranged between the two tube plates; the heat exchange pipe comprises an inner pipe and a foam metal layer sleeved on the inner pipe, a buffer mechanism is installed between the heat exchange pipes and comprises a connecting ring sleeved on the outer side of the heat exchange pipe, the inner wall of the connecting ring is fixedly provided with a fixing protrusion extending into the foam metal layer, the fixing protrusion and the foam metal layer are in interference fit, and an elastic buffer part is arranged between the adjacent connecting rings. In this high-efficient heat exchanger based on heat transfer is reinforceed to foamed metal, through the buffer gear who sets up, can carry out flexonics between the hot exchange pipe, make it form a whole to hot exchange pipe, promote holistic structural strength, still have better shock-absorbing capacity, can reduce the impaired degree of foamed metal on the hot exchange pipe to the life of extension heat exchanger. Meanwhile, the foam metal layer can be well fixed by inserting the arranged fixing bulges into the foam metal layer, and meanwhile, the damage to the foam metal layer is reduced.

Preferably, all the heat exchange tubes are circumferentially distributed around the center line of the shell, and two annular grooves which are arranged in parallel are distributed on the outer side surface of the connecting ring; elastic buffer spare includes the buckling parts of two circular arc structures that central angle is greater than 180, and the buckling parts can imbed in the ring groove, fixedly connected with spring leaf between two buckling parts. The elastic buffer piece is connected with the connecting ring on the heat exchange tube through the buckling part, the detachable connection can be realized, the installation is convenient, the central angle of the buckling part is larger than 180 degrees, and the buckling part is not easy to separate from the connecting ring. The annular grooves arranged in parallel enable adjacent heat exchange tubes to be connected through the elastic buffer piece, and therefore structural stability between the heat exchange tubes is improved.

Preferably, the connecting ring comprises at least two arc plates with arc structures, the fixing protrusions are fixedly arranged on the inner side surfaces of the arc plates, arc grooves distributed in a circumferential array around the central line of the arc plates are formed in the outer side surfaces of the arc plates, and the arc grooves in the arc plates in the same connecting ring are spliced to form the annular grooves.

Preferably, the fixing protrusion is needle-shaped or cone-shaped.

Preferably, a space is left between the fixing protrusion and the outer wall of the inner pipe. Thus, the fixing bulge can be prevented from jacking up to the outer wall of the inner pipe, the fixing bulge is only connected by interference fit with the foam metal layer,

preferably, the bottom of the circular ring groove is provided with anti-slip lines.

Preferably, the inner wall of the shell is fixedly provided with a baffle plate.

Preferably, the shell is provided with a shell pass inlet and a shell pass outlet, one of the end covers is provided with a tube pass inlet and a tube pass outlet, and two ends of the heat exchange tube are respectively communicated with the inner cavities of the two end covers.

Preferably, a support frame is fixedly arranged on the shell.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a set up buffer gear, can connect between the hot exchange pipe, make and have the buffering effect between the hot exchange pipe to can promote the structural strength between the hot exchange pipe, thereby can effectively reduce the vibration range that hot exchange pipe can take place, cooperation go-between and fixed protruding fix foam metal, can effectively alleviate the impaired degree of foam metal layer on the hot exchange pipe, prolong the utility model discloses a life.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a connection structure between heat exchange tubes and a buffer mechanism;

FIG. 4 is a perspective view of a cushioning mechanism;

FIG. 5 is a perspective view of a circular arc plate;

FIG. 6 is a perspective view of the elastomeric cushion;

the labels in the figure are: 1. the shell, 2, heat exchange tube, 3, tube sheet, 4, end cover, 5, inner tube, 6, foam metal layer, 7, buffer gear, 8, connecting ring, 9, circular groove, 10, fixed protrusion, 11, elastic buffer piece, 12, buckling part, 13, spring piece, 14, circular arc board, 15, circular arc groove, 16, baffling board, 17, shell pass entry, 18, shell pass exit, 19, tube pass entry, 20, tube pass exit, 21, support frame.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1-6, a high-efficiency heat exchanger based on foam metal enhanced heat exchange comprises a shell 1 and four heat exchange tubes 2 arranged in the shell 1 and distributed circumferentially around the center line of the shell 1, wherein tube plates 3 are hermetically connected to two ends of the shell 1, end covers 4 are hermetically connected to the outer sides of the tube plates 3, and the heat exchange tubes 2 are fixedly arranged between the two tube plates 3; the heat exchange tube 2 comprises an inner tube 5 and a foam metal layer 6 fixedly sleeved outside the inner tube 5, two sets of buffer mechanisms 7 are installed between the heat exchange tubes 2, each buffer mechanism 7 comprises a connecting ring 8 sleeved outside the heat exchange tube 2, two annular grooves 9 arranged in parallel are distributed on the outer side surface of each connecting ring 8, and anti-skid lines are arranged at the bottoms of the annular grooves 9. The inner wall of the connecting ring 8 is fixedly provided with a fixing protrusion 10 extending into the foam metal layer 6, the fixing protrusion 10 is of a conical structure, the fixing protrusion 10 and the foam metal layer 6 are in interference fit, namely, the fixing protrusion 10 is tightly inserted into a gap of the foam metal layer 6, and a gap is reserved between the fixing protrusion 10 and the outer wall of the inner tube 5.

Be equipped with elastic buffer 11 between the adjacent go-between 8, elastic buffer 11 includes that two central angles are greater than the buckling parts 12 of 180 convex structure, and buckling parts 12 can imbed in the circular groove 9 and the laminating of circular groove 9 inner wall and buckling parts 12, fixedly connected with spring leaf 13 between two buckling parts 12. The connecting ring 8 comprises two arc plates 14 with arc structures, the fixing protrusions 10 are fixedly arranged on the inner side faces of the arc plates 14, arc grooves 15 distributed in a circumferential array mode around the central line of the arc plates 14 are formed in the outer side faces of the arc plates 14, and the arc grooves 15 in the arc plates 14 in the same connecting ring 8 are spliced to form the annular grooves 9. The connecting ring 8 is formed by splicing the two arc plates 14, so that the installation is convenient.

A baffle plate 16 is fixedly arranged on the inner wall of the shell 1. The shell 1 is provided with a shell side inlet 17 and a shell side outlet 18, one of the end covers 4 is provided with a tube side inlet 19 and a tube side outlet 20, and two ends of the heat exchange tube 2 are respectively communicated with the inner cavities of the two end covers 4. A support frame 21 for supporting the housing 1 is also fixedly arranged on the housing 1.

The utility model discloses in, hot exchange pipe 2 both ends are fixed respectively and are set up between two block tube sheet 3, when the inside fluid through different temperatures respectively of casing 1 and hot exchange pipe 2, hot exchange pipe 2 can be because of producing certain vibrations sometimes, and connect through buffer gear 7 between the hot exchange pipe 2, go-between 8 that has fixed arch 10 among the buffer gear 7 is used for cup jointing fixed hot exchange pipe 2, wherein in fixed arch 10 inserts the foam metal layer 6 on hot exchange pipe 2, can carry out better fixed to hot exchange pipe 2, and can alleviate because of the damage degree of fixed connection to foam metal layer 6. After the heat exchange tube 2 vibrates, the elastic buffer part 11 connects the connecting rings 8 on the adjacent heat exchange tubes 2, so that the structural stability between the heat exchange tubes 2 can be improved, an excellent buffer effect can be achieved, the vibration amplitude of the heat exchange tubes 2 can be further reduced, the damage degree of the foam metal layer 6 on the heat exchange tubes 2 can be reduced, and the service life of the heat exchange tubes 2 can be prolonged.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be understood in an open meaning, i.e., in a meaning equivalent to "including at least … …", and not in a closed meaning, i.e., in a meaning not to be understood as "including only … …".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A high-efficiency heat exchanger based on foam metal enhanced heat exchange comprises a shell and a plurality of heat exchange tubes arranged in the shell, wherein tube plates are hermetically connected to two ends of the shell, end covers are hermetically connected to the outer sides of the tube plates, and the heat exchange tubes are arranged between the two tube plates; the heat exchange tube is characterized by comprising an inner tube and a foam metal layer fixedly sleeved on the inner tube, a buffer mechanism is arranged between the heat exchange tubes and comprises a connecting ring sleeved on the outer side of the heat exchange tube, the inner wall of the connecting ring is fixedly provided with a fixing protrusion extending into the foam metal layer, and an elastic buffer part is arranged between the adjacent connecting rings.

2. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 1, wherein all the heat exchange tubes are circumferentially distributed around a center line of the shell, and two annular grooves arranged in parallel are distributed on the outer side surface of the connecting ring; elastic buffer spare includes the buckling parts of two circular arc structures that central angle is greater than 180, and the buckling parts can imbed in the ring groove, fixedly connected with spring leaf between two buckling parts.

3. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 2, wherein the connecting ring comprises at least two circular arc plates with circular arc structures, the fixing protrusions are fixedly arranged on the inner side surfaces of the circular arc plates, circular arc grooves distributed in a circumferential array around the center line of the circular arc plates are arranged on the outer side surfaces of the circular arc plates, and the circular arc grooves in the circular arc plates in the same connecting ring are spliced to form the circular ring grooves.

4. The high-efficiency heat exchanger based on the foam metal enhanced heat exchange of claim 1, 2 or 3, wherein the fixing protrusions are needle-shaped or cone-shaped.

5. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 1, wherein a space is left between the fixing protrusion and the outer wall of the inner pipe.

6. The efficient heat exchanger based on the enhanced heat exchange of the foamed metal as claimed in claim 2, wherein the bottom of the circular groove is provided with anti-slip threads.

7. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 1, wherein a baffle plate is fixedly arranged on the inner wall of the shell.

8. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 1, wherein a shell pass inlet and a shell pass outlet are formed in the shell, a tube pass inlet and a tube pass outlet are formed in one of the end covers, and two ends of the heat exchange tube are respectively communicated with inner cavities of the two end covers.

9. The efficient heat exchanger based on the foam metal enhanced heat exchange of claim 1, wherein a support frame is fixedly arranged on the shell.