Heat exchange device with multi-cavity structure

Abstract

The utility model discloses a heat exchange device with a multi-cavity structure, which comprises a plurality of outer heat exchange bins which are sequentially communicated, inner heat exchange mechanisms are respectively assembled and connected in the outer heat exchange bins, and each inner heat exchange mechanism comprises shunting rings which are arranged at two ends at intervals; a plurality of multi-cavity structure pipes are assembled and communicated between the flow dividing rings, inner pipe cavity frameworks are fixedly connected into the multi-cavity structure pipes, each inner pipe cavity framework comprises a plurality of arc-shaped framework parts, the concave surfaces of the arc-shaped framework parts face pipe cavities of the multi-cavity structure pipes, and the concave surfaces of the arc-shaped framework parts face the pipe cavities of the multi-cavity structure pipes. An independent outer flow channel is formed between the arc-shaped framework part and the inner side wall of the inner pipe cavity framework; a central flow channel is formed in the central part of the inner pipe cavity framework; and the inner heat exchange mechanisms are communicated in series. According to the device, the total heat exchange area of the high-temperature fluid is increased, then the heat exchange efficiency is improved, and meanwhile, the heat exchange volume of a single-strand fluid is small after the fluid is shunted, so that the heat exchange efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchange devices, and in particular relates to a heat exchange device with a multi-cavity structure. Background Art

[0002] A heat exchange device, such as a heat exchanger, is used to exchange heat between high-temperature and low-temperature media. This includes plate-fin heat exchangers and tubular heat exchangers. The heat exchange device cools the working medium by exchanging heat between the high-temperature medium generated by the working equipment and the low-temperature medium. The cooled working medium then circulates back into the working equipment and continues to cool it.

[0003] At the same time, after heat exchange, the low-temperature medium is heated up, realizing the recovery and utilization of heat energy. The heat exchange device realizes the recycling and utilization of heat energy and the cooling of the working equipment.

[0004] The main structure of existing tubular heat exchangers consists of an outer tube and an inner tube installed within the outer tube. Because the inner tube is cylindrical, fluid entering the inner tube during operation, especially high-speed, high-temperature fluid, quickly flows out of the heat exchange device. Consequently, the heat exchange efficiency between the high-temperature fluid and the inner tube is low, and the heat exchange time is short.

[0005] Therefore, in actual working process, the length of the inner core tube is increased, or the number of the inner core tubes is increased. However, if the length is increased, the volume of the entire equipment will be too large, and the increase in the number of core tubes will require a large-diameter pipe for the outer sleeve, which will also cause the volume of the equipment to be too large.

[0006] At the same time, it also leads to excessive use of materials for heat exchange equipment and excessively high overall construction costs. Utility Model Content

[0007] Based on the above background, the purpose of the present invention is to provide a heat exchange device with a multi-cavity structure.

[0008] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0009] A heat exchange device with a multi-chamber structure, comprising a plurality of outer heat exchange chambers connected in sequence, wherein the outer heat exchange chambers are respectively equipped with inner heat exchange mechanisms, and the inner heat exchange mechanisms include diverter rings spaced at both ends;

[0010] A plurality of multi-lumen structure tubes are assembled and connected between the diverter rings. An inner tube cavity skeleton is fixedly connected to the inner of the multi-lumen structure tube. The inner tube cavity skeleton includes a plurality of arc-shaped skeleton parts. The concave surfaces of the arc-shaped skeleton parts face the tube cavity of the multi-lumen structure tube. An independent external flow channel is formed between the arc-shaped skeleton parts and the inner side wall of the inner tube cavity skeleton.

[0011] A central flow channel is provided at the central portion of the inner tubular cavity skeleton;

[0012] The internal heat exchange mechanisms are connected in series.

[0013] Preferably, the external heat exchange chamber includes a cylindrical portion, and tapered portions are integrally formed at both ends of the cylindrical portion.

[0014] Preferably, the external heat exchange chambers are connected through a plurality of U-shaped connecting pipes; the U-shaped connecting pipes are connected between the tapered parts of the external heat exchange chambers;

[0015] The liquid inlet end of the external heat exchange chamber at one end is connected with a cold inlet pipe, and the liquid outlet end of the external heat exchange chamber at the other end is connected with a heat outlet pipe.

[0016] Preferably, the multi-cavity structure tube includes a long cylindrical tube portion, and tapered tube portions are integrally formed at both ends of the long cylindrical tube portion;

[0017] The inner tube cavity skeleton is fixedly connected in the long cylindrical tube part.

[0018] Preferably, the internal heat exchange mechanisms are connected in series via U-shaped cross-connecting pipes;

[0019] One end of the U-shaped cross-connecting pipe is connected to the diverter ring on one side, and the other end of the U-shaped cross-connecting pipe is connected to the diverter ring on the other side.

[0020] Preferably, the U-shaped cross-connecting pipe passes through the outer heat exchange chambers and connects to the adjacent diverter rings;

[0021] The U-shaped cross-connecting pipe is sealed and welded to the penetration position of the external heat exchange chamber.

[0022] Preferably, the diverter ring at the liquid inlet end is connected to a pump heat medium pipeline;

[0023] The diverter ring at the liquid outlet is connected with a pump cooling medium pipeline; the pump heating medium pipeline and the pump cooling medium pipeline respectively pass through the top of the external heat exchange chamber, and the penetration position is sealed and welded.

[0024] Preferably, the multi-cavity structure tube is made of copper;

[0025] The inner tube cavity skeleton is made of stainless steel.

[0026] Preferably, the length of the inner tubular cavity skeleton is set to be equal to the length of the long cylindrical tube part.

[0027] The utility model has the following beneficial effects:

[0028] During the working process, the fluid enters the multi-cavity structure tube, and under the separation of the inner tube cavity skeleton, the fluid enters each outer flow channel respectively. At this time, in addition to the inner side wall of the multi-cavity structure tube, the inner tube cavity skeleton also includes the inner tube cavity skeleton (the inner tube cavity skeleton is welded and fixed in the tube cavity of the multi-cavity structure tube with stainless steel sheets).

[0029] Therefore, the overall heat exchange area of ​​the high-temperature fluid increases (which can be calculated by adding the area of ​​the inner wall of the multi-cavity structure tube to the area of ​​the inner tube cavity skeleton), thereby increasing the heat exchange efficiency. At the same time, since the heat exchange volume of a single fluid is small after the fluid is diverted, the heat exchange efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0032] Figure 2 This is a structural diagram of the internal heat exchange mechanism in an embodiment of the present utility model;

[0033] Figure 3 This is a schematic diagram of the dispersed structure of the multi-lumen structure tube and the inner lumen skeleton in the embodiment of the utility model;

[0034] Figure 4 This is a schematic structural diagram of the inner tubular cavity skeleton in an embodiment of the present utility model;

[0035] Figure 5 This is a schematic structural diagram of the positional relationship between the inner tube cavity skeleton and the multi-lumen structure tube in an embodiment of the present utility model;

[0036] Figure 6 It is a structural schematic diagram of the internal heat exchange mechanism in an embodiment of the present utility model.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0041] Example 1

[0042] like Figure 1-6 As shown, a heat exchange device with a multi-chamber structure includes several external heat exchange chambers 1 connected in sequence. The shape of the external heat exchange chamber 1 is: the external heat exchange chamber 1 includes a cylindrical portion, and tapered portions are integrally formed at both ends of the cylindrical portion. The external heat exchange chamber 1 adopts a series connection method, specifically: the external heat exchange chambers 1 are connected by several U-shaped connecting pipes 13; the U-shaped connecting pipes 13 are connected between the tapered portions of the external heat exchange chambers 1.

[0043] At the same time, the rear end of the external heat exchange chamber 1 at the left end is connected to the cold inlet pipe 11, and the front end of the external heat exchange chamber 1 at the right end is connected to the heat outlet pipe 12.

[0044] During operation, the low-temperature medium is pumped in from the cooling inlet pipe and then pumped in and out from each external heat exchange chamber 1 in sequence, and the low-temperature medium is filled in each heat exchange chamber.

[0045] The external heat exchange chambers 1 are each equipped with an internal heat exchange mechanism, comprising diverter rings 21 spaced at either end (diverter rings 21 are stainless steel rings with an annular cavity). Multiple multi-lumen tubes 24 are connected between the diverter rings 21 (the multi-lumen tubes 24 are made of copper, and the length of the internal tube cavities is equal to the length of the long cylindrical tube).

[0046] The shape of the multi-lumen structure tube 24 is as follows: the multi-lumen structure tube 24 includes a long cylindrical tube portion (the inner tube cavity skeleton is fixedly connected inside the long cylindrical tube portion), and tapered tube portions 241 are integrally formed at both ends of the long cylindrical tube portion.

[0047] The multi-cavity structure tubes 24 allow the high-temperature medium to continue to flow through each of the multi-cavity structure tubes 24 when it is split. This increases the heat exchange efficiency between the high-temperature medium and the multi-cavity structure tubes 24 within a specific length of the multi-cavity structure tubes 24. Specifically, because the high-temperature medium continues to flow through the multi-cavity structure tubes 24 to form multiple streams, once the multiple streams are split, the heat energy of the fluid can be more fully exchanged with the multi-cavity structure tubes 24.

[0048] Specifically, an inner tubular skeleton 4 is fixedly connected to the multi-lumen structure tube 24, and the inner tubular skeleton 4 includes several arc-shaped skeleton parts 41, the concave surface of the arc-shaped skeleton part 41 faces the tubular cavity of the multi-lumen structure tube 24, and an independent outer flow channel A is formed between the arc-shaped skeleton part 41 and the inner side wall of the inner tubular skeleton 4; a central flow channel B is opened in the central part of the inner tubular skeleton 4.

[0049] During operation, the high-temperature working fluid medium enters the multi-cavity structure tube 24. Under the separation of the inner tube cavity skeleton 4, the fluid enters each outer flow channel A respectively. At this time, in addition to the inner side wall of the multi-cavity structure tube 24, the inner tube cavity skeleton 4 also includes the inner tube cavity skeleton 4 (the inner tube cavity skeleton 4 is welded and fixed in the tube cavity of the multi-cavity structure tube 24 with stainless steel sheets) for heat exchange with the fluid.

[0050] Therefore, the overall heat exchange area of ​​the high-temperature fluid increases (which can be calculated by adding the inner wall area of ​​the multi-cavity structure tube 24 to the area of ​​the inner tube cavity skeleton 4), thereby increasing the heat exchange efficiency. At the same time, since the heat exchange volume of a single fluid is small after the fluid is diverted, the heat exchange efficiency is higher.

[0051] Example 2

[0052] like Figure 1-5 As shown, this embodiment, based on the structure of Example 1, has the internal heat exchange mechanisms connected in series. The internal heat exchange mechanisms are connected in series via a U-shaped cross-connecting pipe 25; one end of the U-shaped cross-connecting pipe 25 is connected to the diverter ring 21 on one side, and the other end of the U-shaped cross-connecting pipe 25 is connected to the diverter ring 21 on the other side.

[0053] At the same time, the U-shaped cross-connecting pipe 25 passes through the outer heat exchange chambers 1 and is connected to the adjacent diverter rings 21 ; the U-shaped cross-connecting pipe 25 and the outer heat exchange chambers 1 are sealed and welded at the penetration position.

[0054] The diverter ring 21 at the liquid inlet end (the leftmost position) is connected to a heat pump pipe 22; the diverter ring 21 at the liquid outlet end (the rightmost position) is connected to a cool pump pipe 23; the heat pump pipe 22 and the cool pump pipe 23 respectively pass through the top of the external heat exchange chamber 1, and the penetration position is sealed and welded.

[0055] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A heat exchange device with a multi-cavity structure, characterized in that: It comprises a plurality of external heat exchange chambers connected in sequence, wherein each of the external heat exchange chambers is equipped with an internal heat exchange mechanism, and the internal heat exchange mechanism comprises a diverter ring spaced at both ends; A plurality of multi-lumen structure tubes are assembled and connected between the diverter rings. An inner tube cavity skeleton is fixedly connected to the inner of the multi-lumen structure tube. The inner tube cavity skeleton includes a plurality of arc-shaped skeleton parts. The concave surfaces of the arc-shaped skeleton parts face the tube cavity of the multi-lumen structure tube. An independent external flow channel is formed between the arc-shaped skeleton parts and the inner side wall of the inner tube cavity skeleton. A central flow channel is provided at the central portion of the inner tubular cavity skeleton; The internal heat exchange mechanisms are connected in series.

2. The heat exchange device with a multi-chamber structure according to claim 1, characterized in that: The external heat exchange chamber includes a cylindrical portion, and tapered portions are integrally formed at both ends of the cylindrical portion.

3. The heat exchange device with a multi-chamber structure according to claim 2, characterized in that: The external heat exchange chambers are connected through a plurality of U-shaped connecting pipes; the U-shaped connecting pipes are connected between the tapered parts of the external heat exchange chambers; The liquid inlet end of the external heat exchange chamber at one end is connected with a cold inlet pipe, and the liquid outlet end of the external heat exchange chamber at the other end is connected with a heat outlet pipe.

4. The heat exchange device with a multi-chamber structure according to claim 1, characterized in that: The multi-cavity structure tube includes a long cylindrical tube portion, and tapered tube portions are integrally formed at both ends of the long cylindrical tube portion; The inner tube cavity skeleton is fixedly connected in the long cylindrical tube part.

5. The heat exchange device with a multi-chamber structure according to claim 1, characterized in that: The internal heat exchange mechanisms are connected in series via U-shaped cross-connecting pipes; One end of the U-shaped cross-connecting pipe is connected to the diverter ring on one side, and the other end of the U-shaped cross-connecting pipe is connected to the diverter ring on the other side.

6. The heat exchange device with a multi-chamber structure according to claim 5, characterized in that: The U-shaped cross-connecting pipe passes through the outer heat exchange chambers and connects to the adjacent diverter rings; The U-shaped cross-connecting pipe is sealed and welded to the penetration position of the external heat exchange chamber.

7. The heat exchange device with a multi-chamber structure according to claim 1, characterized in that: The diverter ring at the liquid inlet end is connected to a pump heat medium pipeline; The diverter ring at the liquid outlet is connected with a pump cooling medium pipeline; the pump heating medium pipeline and the pump cooling medium pipeline respectively pass through the top of the external heat exchange chamber, and the penetration position is sealed and welded.

8. The heat exchange device with a multi-chamber structure according to claim 4, characterized in that: The multi-cavity structure tube is made of copper; The inner tube cavity skeleton is made of stainless steel.

9. The heat exchange device with a multi-chamber structure according to claim 8, characterized in that: The length of the inner tubular cavity skeleton is set to be equal to the length of the long cylindrical tube part.

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