Flow increasing structure of heat exchanger

Abstract

The utility model discloses a flow increasing structure of a heat exchanger. The flow increasing structure comprises a shell, baffle plates and a distance fixing mechanism. The baffle plates comprise an upper baffle plate and a lower baffle plate, an upper baffle plate is formed at the upper end of the upper baffle plate, the upper baffle plate and the upper baffle plate are arranged in the shell, a first passage is formed between the lower end of the upper baffle plate and the inner side wall of the shell, a lower baffle plate is formed at the lower end of the lower baffle plate, the lower baffle plate and the lower baffle plate are arranged in the shell, and a second passage is formed between the lower baffle plate and the inner side wall of the shell. A second passageway is formed between the upper end of the lower baffle plate and the inner side wall of the shell, the distance fixing mechanism is arranged in the shell, and every two adjacent baffle plates are evenly spaced through the distance fixing mechanism. The baffle plates are arranged in the shell, so that the flow path of fluid is increased, and the heat exchange effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to an enlarged flow structure of a heat exchanger. Background Art

[0002] Heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid, and can also be called heat exchangers. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] The heat exchanger in the prior art usually includes a shell and a heat exchange tube. The heat exchange tube is arranged in the shell. When in use, a first fluid flows in the shell and a second fluid flows in the heat exchange tube. The heat of the second fluid is different from that of the first fluid, thereby achieving heat exchange. However, when the first fluid in the prior art flows in the shell, the flow rate of the first fluid is small, thereby affecting the heat exchange effect. In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus the present case was produced. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the utility model is to propose a heat exchanger flow enlargement structure, which increases the flow of the fluid and improves the heat exchange effect by arranging baffles in the shell, and evenly spaces two adjacent baffles by arranging a spacing mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a heat exchanger flow enlargement structure, including a shell, a baffle and a spacing mechanism;

[0006] The baffle plate includes an upper baffle plate and a lower baffle plate, the upper end of the upper baffle plate forms an upper baffle plate, the upper baffle plate and the upper baffle plate are arranged in a shell, a first passage is formed between the lower end of the upper baffle plate and the inner wall of the shell, the lower end of the lower baffle plate forms a lower baffle plate, the lower baffle plate and the lower baffle plate are arranged in the shell, a second passage is formed between the upper end of the lower baffle plate and the inner wall of the shell, and the spacing mechanism is arranged in the shell, and the spacing mechanism evenly spaces two adjacent baffle plates apart.

[0007] Furthermore, the upper baffles are provided in plurality, the lower baffles are provided in plurality, and the upper baffles and the lower baffles are provided alternately.

[0008] Furthermore, a first through hole for the heat exchange tube to pass through is provided on the baffle.

[0009] Furthermore, the first perforations are arranged in plurality, and three adjacent first perforations are arranged in an equilateral triangle.

[0010] Furthermore, a support plate is arranged between adjacent upper baffles and lower baffles, a third passage is formed between the upper end of the support plate and the inner wall of the shell, and a fourth passage is formed between the lower end of the support plate and the inner wall of the shell.

[0011] Furthermore, the support plate is provided with a second through hole for the heat exchange tube to pass through.

[0012] Furthermore, the second perforations are arranged in plurality, and three adjacent second perforations are arranged in an equilateral triangle.

[0013] Furthermore, the spacing mechanism includes a spacing tube and a pull rod; the spacing tube is arranged in plurality, one end of the spacing tube abuts against the baffle plate, and the other end of the spacing tube abuts against the support plate; or one end of the spacing tube abuts against one support plate, and the other end of the spacing tube abuts against another support plate; the pull rod passes through the spacing tube, the baffle plate and the support plate and is fixed to the end of the shell.

[0014] Furthermore, the baffle plate and the support plate are provided with through holes for the pull rod to pass through.

[0015] Furthermore, two support plates are arranged between adjacent upper baffles and lower baffles.

[0016] Furthermore, a tube sheet is arranged in the shell, and the end of the pull rod is locked on the tube sheet by a fastener.

[0017] After adopting the above structure, the utility model relates to a heat exchanger with an enlarged flow structure, which has at least the following beneficial effects:

[0018] First, when in use, the fluid is passed into the shell. When the fluid flows in the shell, after the fluid moves to the upper baffle, the upper baffle blocks the fluid, and the upper baffle drives the fluid to flow downward, so that the fluid passes through the first passage. After the fluid continues to flow to the lower baffle, the lower baffle blocks the fluid, and the lower baffle drives the fluid to flow upward. Therefore, the present application increases the flow of the fluid by setting the upper baffle and the lower baffle, so that the fluid flows in the shell for a longer time, thereby improving the heat exchange effect. By setting a spacing mechanism, the two adjacent baffles are evenly spaced apart to prevent the two adjacent baffles from being close together and affecting the heat exchange effect.

[0019] Second, by setting a plurality of upper baffles and lower baffles, and setting the upper baffles and the lower baffles alternately, when the fluid flows in the shell, the fluid passes through the first aisle, the second aisle, the next first aisle, and the next second aisle in sequence, thereby further increasing the flow rate of the fluid.

[0020] Third, by providing the first perforation, it is convenient to install the heat exchange tube. When installing the heat exchange tube, the heat exchange tube is passed through the first perforation, and another fluid flows in the heat exchange tube, thereby achieving heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an enlarged flow structure of a heat exchanger according to an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of an upper baffle according to an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a lower baffle according to an embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a support plate according to an embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the connection between the spacing mechanism, the baffle plate and the support plate according to an embodiment of the utility model.

[0026] Description of symbols

[0027] Shell 1, baffle 2, upper baffle 21, upper baffle 211, first passage 212, lower baffle 22, lower baffle 221, second passage 222, first through hole 23, support plate 3, second through hole 31, distance mechanism 4, distance tube 41, pull rod 42. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] like Figures 1 to 5 As shown, a heat exchanger enlarged flow structure of the utility model includes a shell 1 and a baffle 2; the baffle 2 includes an upper baffle 21 and a lower baffle 22, an upper baffle 21 is formed at the upper end of the upper baffle 21, the upper baffle 211 and the upper baffle 21 are arranged in the shell 1, a first passage 212 is formed between the lower end of the upper baffle 21 and the inner wall of the shell 1, a lower baffle 221 is formed at the lower end of the lower baffle 22, the lower baffle 221 and the lower baffle 22 are arranged in the shell 1, a second passage 222 is formed between the upper end of the lower baffle 22 and the inner wall of the shell 1.

[0030] In this way, the utility model relates to a heat exchanger with an increased flow structure. When in use, the fluid is introduced into the shell 1. When the fluid flows in the shell 1, after the fluid moves to the upper baffle 211, the upper baffle 211 blocks the fluid, and the upper baffle 211 drives the fluid to flow downward, so that the fluid passes through the first passage 212. After the fluid continues to flow to the lower baffle 221, the lower baffle 221 blocks the fluid, and the lower baffle 221 drives the fluid to flow upward. Therefore, the present application increases the flow of the fluid by setting the upper baffle 211 and the lower baffle 221, so that the fluid flows in the shell 1 for a longer time, thereby improving the heat exchange effect.

[0031] Optionally, a plurality of upper baffles 21 and a plurality of lower baffles 22 are provided, and the upper baffles 21 and the lower baffles 22 are provided alternately. By providing a plurality of upper baffles 21 and lower baffles 22, and the upper baffles 21 and the lower baffles 22 are provided alternately, when the fluid flows in the housing 1, the fluid passes through the first passage 212, the second passage 222, the next first passage 212, and the next second passage 222 in sequence, thereby further increasing the flow of the fluid.

[0032] In this example, the baffle 2 is provided with a first through hole 23 for the heat exchange tube to pass through. The first through hole 23 is provided to facilitate the installation of the heat exchange tube. When the heat exchange tube is installed, the heat exchange tube is passed through the first through hole 23, and another fluid flows in the heat exchange tube, thereby achieving heat exchange.

[0033] Specifically, the first perforations 23 are provided in a plurality, such as Figure 2 and Figure 3 As shown, three adjacent first perforations 23 are arranged in an equilateral triangle (for the sake of overall simplicity of the figure, multiple first perforations 23 in a local area are drawn in the figure). After multiple heat exchange tubes are passed through different first perforations 23, since the three adjacent first perforations 23 are arranged in an equilateral triangle, there is a certain gap between adjacent heat exchange tubes, so that the heat exchange tubes are distributed in an orderly and uniform manner. In this way, when the fluid flows in the shell 1, it fully contacts the outer surfaces of different heat exchange tubes, so that the heat exchange is more uniform and the heat exchange effect is better.

[0034] In some examples, a support plate 3 is disposed between adjacent upper baffles 21 and lower baffles 22, a third passage is formed between the upper end of the support plate 3 and the inner wall of the shell 1, and a fourth passage is formed between the lower end of the support plate 3 and the inner wall of the shell 1. By providing the third passage and the fourth passage, the fluid can easily pass through the third passage and the fourth passage when flowing.

[0035] In this example, the support plate 3 is provided with a second through hole 31 for the heat exchange tube to pass through. The second through hole 31 is provided to facilitate the installation of the heat exchange tube. When the heat exchange tube is installed, the heat exchange tube is passed through the first through hole 23 and the second through hole 31, and another fluid flows in the heat exchange tube, thereby achieving heat exchange. Specifically, the second through hole 31 is provided in a plurality of ways, such as Figure 4 As shown, three adjacent second perforations 31 are arranged in an equilateral triangle. (For the sake of overall simplicity of the figure, multiple second perforations 31 in a local area are drawn in the figure.) After multiple heat exchange tubes are passed through different second perforations 31, since the three adjacent second perforations 31 are arranged in an equilateral triangle, there is a certain gap between adjacent heat exchange tubes, so that the heat exchange tubes are orderly and evenly distributed. In this way, when the fluid flows in the shell 1, it fully contacts the outer surfaces of different heat exchange tubes, so that the heat exchange is more uniform and the heat exchange effect is better.

[0036] Furthermore, the baffle plate 2 and the support plate 3 are arranged in the housing 1 through the distance mechanism 4, as shown in FIG. Figure 5 As shown, the spacing mechanism 4 includes a spacing tube 41 and a pull rod 42; the spacing tube 41 is arranged in plurality, one end of the spacing tube 41 abuts against the baffle 2, and the other end of the spacing tube 41 abuts against the support plate 3; or one end of the spacing tube 41 abuts against one support plate 3, and the other end of the spacing tube 41 abuts against another support plate 3; the pull rod 42 passes through the spacing tube 41, the baffle 2 and the support plate 3 and is fixed to the end of the shell 1.

[0037] During installation, the pull rod 42 is passed through the spacing tube 41, the baffle 2 and the support plate 3 and then fixed at the end of the shell 1, so that there is a spacing tube 41 between adjacent baffles 2 and support plates 3, and there is a spacing tube 41 between two adjacent support plates 3, thereby spacing the support plate 3 and the baffle 2 apart.

[0038] In order to facilitate the tie rod 42 to pass through the baffle plate 2 and the support plate 3, in this example, a through hole for the tie rod 42 to pass through is provided on the baffle plate 2 and the support plate 3, a tube sheet is provided in the shell 1, and the end of the tie rod 42 is locked on the tube sheet by a fastener. By providing the through hole, during installation, after the tie rod 42 passes through the distance tube 41 and the through hole, the end of the tie rod 42 is locked on the tube sheet by a fastener, thereby completing the installation of the distance mechanism 4.

[0039] In this example, two support plates 3 are arranged between the adjacent upper baffles 21 and the lower baffles 22, so as to support the heat exchange tubes and prevent the heat exchange tubes from being close together under the action of gravity. Of course, other numbers of support plates 3, such as one support plate 3 or three support plates 3, may also be arranged between the adjacent upper baffles 21 and the lower baffles 22.

[0040] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A heat exchanger enlarged flow structure, characterized in that: It includes a shell, a baffle and a distance mechanism; The baffle plate includes an upper baffle plate and a lower baffle plate, the upper end of the upper baffle plate forms an upper baffle plate, the upper baffle plate and the upper baffle plate are arranged in a shell, a first passage is formed between the lower end of the upper baffle plate and the inner wall of the shell, the lower end of the lower baffle plate forms a lower baffle plate, the lower baffle plate and the lower baffle plate are arranged in the shell, a second passage is formed between the upper end of the lower baffle plate and the inner wall of the shell, and the spacing mechanism is arranged in the shell, and the spacing mechanism evenly spaces two adjacent baffle plates apart.

2. The heat exchanger enlarged flow structure according to claim 1, characterized in that: The upper baffles are provided in plurality, the lower baffles are provided in plurality, and the upper baffles and the lower baffles are arranged alternately.

3. The heat exchanger enlarged flow structure according to claim 1, characterized in that: The baffle is provided with a first through hole for the heat exchange tube to pass through.

4. The heat exchanger enlarged flow structure according to claim 3, characterized in that: The first perforations are arranged in a plurality, and three adjacent first perforations are arranged in an equilateral triangle.

5. The heat exchanger enlarged flow structure according to claim 1, characterized in that: A support plate is arranged between adjacent upper baffle plates and lower baffle plates, a third passage is formed between the upper end of the support plate and the inner wall of the shell, and a fourth passage is formed between the lower end of the support plate and the inner wall of the shell.

6. The heat exchanger enlarged flow structure according to claim 5, characterized in that: The support plate is provided with a second through hole for the heat exchange tube to pass through.

7. The heat exchanger enlarged flow structure according to claim 6, characterized in that: The second perforations are arranged in plurality, and three adjacent second perforations are arranged in an equilateral triangle.

8. The heat exchanger enlarged flow structure according to claim 1, characterized in that: The distance mechanism includes a distance tube and a pull rod; the distance tube is arranged in plurality, one end of the distance tube abuts against the baffle plate, and the other end of the distance tube abuts against the support plate; or one end of the distance tube abuts against one support plate, and the other end of the distance tube abuts against another support plate; the pull rod passes through the distance tube, the baffle plate and the support plate and is fixed to the end of the shell.

9. The heat exchanger enlarged flow structure according to claim 1, characterized in that: Two support plates are arranged between adjacent upper baffle plates and lower baffle plates.

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