A new double-tube-plate heat exchanger

Abstract

The utility model discloses a novel double -tube plate heat exchanger relates to heat exchanger technical field. The utility model discloses a shell, and the side of shell has set up the guide component, and the guide component includes the storage cylinder of installing at the one side of shell, and the closed side of storage cylinder has the top plate, upper plate, baffle, lower plate and bottom plate from top to bottom in proper order, and the upper surface of baffle is set up and is close to the side of one side of storage cylinder the through groove, and the lower surface of top plate and the upper surface of bottom plate all have the fixed connection of support block, and two support blocks are connected on the upper and lower two surfaces of baffle, and the side of support block is far away from storage cylinder, and the other side of shell has set up the support component. The utility model sets up the guide component, and increases the time of heat flow body and stay inside the shell, makes heat flow body and cold flow body fully heat exchange, and promotes the heat exchange effect, and sets up the support component, and the side of outer tube and inner tube is far away from the storage cylinder and supports, avoids the outer tube and inner tube and is damaged to bend, and increases the service life of outer tube and inner tube.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to a novel double tube sheet heat exchanger. Background Technology

[0002] In industrial production processes, waste heat generated through cooling and combustion systems is released into the environment, causing pollution. This heat emission primarily originates from the cooling and combustion systems of large facilities such as thermal power plants, nuclear power plants, and steel mills. Failure to recover and utilize this heat results in energy waste and increases in atmospheric and water temperatures, impacting ecological balance. Therefore, heat recovery and utilization are necessary. Using a double-tube sheet heat exchanger to achieve heat exchange between cold and hot fluids allows for heat recovery. A double-tube sheet heat exchanger is a special type of shell-and-tube heat exchanger. Its core feature is the presence of two tube sheets at both ends, with a gap between them completely isolating the tube-side fluid from the shell-side fluid. However, double-tube sheet heat exchangers still have the following shortcomings in practical applications:

[0003] First, there are two U-shaped tubes inside the shell. The cold flow body flows inside the two U-shaped tubes, and the hot flow body flows inside the shell, realizing heat exchange between the cold flow body and the hot flow body. However, the hot flow body has a short travel distance inside the shell, which reduces the residence time of the hot flow body inside the shell. This is not conducive to sufficient heat exchange between the cold flow body and the hot flow body, and will reduce the heat exchange effect.

[0004] 2. Secondly, the two U-shaped tubes inside the outer casing only have a support structure on one side, and no support structure on the other side. Since the cold air body enters the inside of both U-shaped tubes, the lack of support will cause the two U-shaped tubes to bend and be damaged, reducing the service life of the U-shaped tubes and increasing the replacement frequency of the U-shaped tubes.

[0005] To address these issues, we provide a novel dual-tube sheet heat exchanger. Utility Model Content

[0006] The purpose of this utility model is to provide a novel double tube sheet heat exchanger. By setting a guiding component, the travel of the hot flow body inside the shell is extended, allowing the hot flow body and the cold flow body to exchange heat more fully. Furthermore, by setting a support component, the outer tube and the inner tube are supported on the side away from the storage cylinder, preventing the outer tube and the inner tube from bending and being damaged due to lack of support. Thus, the technical problems mentioned in the background art are solved.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a novel double-tube sheet heat exchanger, comprising a shell, a guide assembly on one side of the shell, the guide assembly including a storage cylinder mounted on one side of the shell, a top plate, an upper plate, a partition plate, a lower plate, and a bottom plate connected sequentially from top to bottom on the closed side of the storage cylinder, a through groove on the upper surface of the partition plate near the storage cylinder, a support block fixed to the lower surface of the top plate and the upper surface of the bottom plate, two of the support blocks being connected to the upper and lower surfaces of the partition plate, the support blocks being on the side away from the storage cylinder, the upper plate and the lower plate not contacting the support blocks, and an outer tube and an inner tube communicating on the closed side of the storage cylinder; a support assembly is provided on the other side of the shell, the support assembly including a shell cover mounted on the other side of the shell, a bracket connected to the inner wall of the shell cover, and sleeved collars on the periphery of the outer tube and the inner tube, the collars abutting against the brackets, the collars being on the side away from the storage cylinder.

[0009] The present invention is further configured such that the mounting frame symmetrically fixed to the lower part of the outer shell has an L-shaped structure, and the mounting frame has bolts connected in a rectangular array of threads.

[0010] The present invention is further configured such that the upper part of the outer shell has a communicating hot fluid outlet pipe, the through hole opened on the upper surface of the top plate is aligned with the lower end of the hot fluid outlet pipe, the lower part of the outer shell has a communicating hot fluid inlet pipe, and the through hole opened on the lower surface of the bottom plate is aligned with the upper end of the hot fluid inlet pipe.

[0011] The present invention is further configured such that a disk is installed on the open side of the storage cylinder, and a partition block fixed to the side wall of the disk contacts the inner side wall of the storage cylinder.

[0012] The present invention is further configured such that the upper part of the storage cylinder has a connected cold fluid inlet pipe, and the lower part of the storage cylinder has a connected cold fluid outlet pipe.

[0013] The present invention is further configured such that both the outer tube and the inner tube are U-shaped structures, and both the outer tube and the inner tube penetrate the support block.

[0014] The present invention is further configured such that the bracket is a U-shaped structure, and the lower surface of the bracket has symmetrically fixed reinforcing blocks, which are connected to the inner wall of the shell cover.

[0015] This utility model has the following beneficial effects:

[0016] This invention, by setting a guiding component, allows the hot fluid entering the shell to flow between the bottom plate and the lower plate, then upward to between the lower plate and the partition plate, then flow between the lower plate and the partition plate to below the through groove, then pass through the through groove upward to between the partition plate and the upper plate, then flow between the partition plate and the upper plate to between the upper plate and the top plate, and finally flow to the hot fluid outlet pipe for discharge. This effectively extends the travel distance of the hot fluid inside the shell, increases the time the hot fluid is inside the shell, and allows the hot and cold fluid to exchange heat more fully, thus improving the heat exchange effect.

[0017] This utility model provides a support component, with the bracket supporting the collar and the outer and inner tubes on the side away from the storage cylinder. This prevents the outer and inner tubes from moving downwards due to lack of support on the side away from the storage cylinder, avoids bending and damage to the outer and inner tubes, increases their service life, and reduces their replacement frequency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic cross-sectional view of a novel double tube sheet heat exchanger.

[0020] Figure 2 A three-dimensional schematic diagram of a novel double tube sheet heat exchanger;

[0021] Figure 3 This is a schematic diagram of the guide component.

[0022] Figure 4 This is a schematic diagram showing the connection between the outer tube, inner tube, and support components.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Outer shell, 101-Hot fluid outlet pipe, 101a-Hot fluid inlet pipe, 102-Hosting frame, 102a-Bolt, 2-Guide assembly, 201-Storage cylinder, 202-Disc, 202a-Divider block, 203-Cold fluid inlet pipe, 203a-Cold fluid outlet pipe, 204-Baffle plate, 204a-Through groove, 205-Outer pipe, 205a-Inner pipe, 206-Bottom plate, 206a-Lower plate, 207-Top plate, 207a-Upper plate, 208-Support block, 3-Support assembly, 301-Shell cover, 302-Bracket, 302a-, 303-Ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0026] Please see Figure 1 and Figure 2 This utility model is a novel double tube sheet heat exchanger, including a shell 1, a hot fluid outlet pipe 101, a hot fluid inlet pipe 101a, a mounting bracket 102, and bolts 102a. The hot fluid outlet pipe 101 is used to discharge the heat flow body after heat exchange inside the shell 1, the hot fluid inlet pipe 101a is used for the heat flow body to enter the interior of the shell 1, and the bolts 102a are used to fix the position of the mounting bracket 102 to improve the stability of the shell 1 after installation.

[0027] Specifically, the upper part of the outer casing 1 has a connected hot fluid outlet pipe 101, the lower part of the outer casing 1 has a connected hot fluid inlet pipe 101a, and the lower part of the outer casing 1 has a symmetrically fixed mounting frame 102, with threaded bolts 102a on the mounting frame 102.

[0028] Furthermore, the mounting frame 102 has an L-shaped structure;

[0029] The operation process of this embodiment is as follows: rotate the bolt 102a counterclockwise to fix the position of the mounting frame 102 and complete the installation of the outer shell 1; rotate the bolt 102a clockwise to release the fixation of the position of the mounting frame 102 and disassemble the outer shell 1; the heat flow body enters the interior of the outer shell 1 from the heat flow inlet pipe 101a for heat exchange, and the heat flow body after heat exchange inside the outer shell 1 is discharged through the heat flow outlet pipe 101. Example 2

[0030] Please see Figure 1 , Figure 2 and Figure 3 Based on the first specific embodiment, a guide component 2 is provided. The guide component 2 includes a storage cylinder 201, a partition 204, a through groove 204a, a bottom plate 206, a lower plate 206a, a top plate 207, an upper plate 207a, and a support block 208. This allows the heat flow body entering the shell 1 to move back and forth multiple times, increasing the travel distance of the heat flow body inside the shell 1, increasing the heat exchange time between the heat flow body and the cold flow body, and enabling the heat flow body and the cold flow body to exchange heat more fully, thereby improving the heat exchange effect.

[0031] Specifically, a storage cylinder 201 is installed on one side of the outer casing 1. A disc 202 is installed on the open side of the storage cylinder 201. A partition block 202a is fixed to the side wall of the disc 202, and the partition block 202a contacts the inner side wall of the storage cylinder 201. A cold fluid inlet pipe 203 is connected to the upper part of the storage cylinder 201, and a cold fluid outlet pipe 203a is connected to the lower part of the storage cylinder 201. A top plate 207 and an upper plate 208 are connected sequentially from top to bottom on the closed side of the storage cylinder 201. 07a, partition 204, lower plate 206a and bottom plate 206, the upper surface of partition 204 has a through groove 204a, the through groove 204a is close to the storage cylinder 201, the lower surface of top plate 207 and the upper surface of bottom plate 206 both have fixed support blocks 208, the support blocks 208 are away from the storage cylinder 201, the closed side of storage cylinder 201 also has an outer tube 205 and an inner tube 205a, the outer tube 205 and the inner tube 205a both pass through the support block 208;

[0032] Furthermore, the lower plate 206a does not contact the support block 208, the upper plate 207a does not contact the support block 208, the outer tube 205 has a U-shaped structure, and the inner tube 205a has a U-shaped structure.

[0033] The operation process of this embodiment is as follows: the cold fluid body enters the interior of the storage cylinder 201 through the cold fluid inlet pipe 203, and the cold fluid body inside the storage cylinder 201 enters the interior of the outer pipe 205 and the inner pipe 205a, absorbing the heat of the hot fluid body inside the outer shell 1. After absorbing the heat, the cold fluid body enters the storage cylinder 201 and is discharged through the cold fluid outlet pipe 203a. The hot fluid body that enters the interior of the outer shell 1 through the hot fluid inlet pipe 101a flows between the bottom plate 206 and the lower plate 206a, flows to the side of the lower plate 206a and then flows upward. Subsequently, it flows between the lower plate 206a and the partition plate 204, flows to the bottom of the through groove 204a and then flows upward. Subsequently, it flows between the partition plate 204 and the upper plate 207a, and then flows upward to the area between the upper plate 207a and the top plate 207. After aligning with the hot fluid outlet pipe 101, it is discharged through the hot fluid outlet pipe 101. Example

[0034] Please see Figure 1 , Figure 2 and Figure 4 Based on specific embodiments one and two, a support component 3 is provided. The support component 3 includes a shell cover 301, a bracket 302, 302a and a collar 303. The bracket 302 supports the collar 303 and supports the side of the outer tube 205 and the inner tube 205a away from the storage cylinder 201. This effectively prevents the side of the outer tube 205 and the inner tube 205a away from the storage cylinder 201 from moving downward, avoids bending and damage to the outer tube 205 and the inner tube 205a, and increases the service life of the outer tube 205 and the inner tube 205a.

[0035] Specifically, the cover 301 is installed on the other side of the outer shell 1. The inner wall of the cover 301 has a connecting bracket 302. The lower surface of the bracket 302 has symmetrically fixed 302a. The 302a is connected to the inner wall of the cover 301. The outer tube 205 and the inner tube 205a both have sleeved collars 303 on their periphery. The collars 303 abut against the bracket 302.

[0036] Furthermore, the support 302 has a U-shaped structure, and the collar 303 is located away from the storage cylinder 201.

[0037] The operation process of this embodiment is as follows: two collars 303 are sleeved on one side of the outer tube 205 and the inner tube 205a, and the shell cover 301 is installed on the other side wall of the outer shell 1. At the same time, the bracket 302 moves to the bottom of the collars 303 to support the collars 303.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A novel double tube sheet heat exchanger, comprising a shell (1), characterized in that: A guide assembly (2) is provided on one side of the outer casing (1). The guide assembly (2) includes a storage cylinder (201) installed on one side of the outer casing (1). The closed side of the storage cylinder (201) has a top plate (207), an upper plate (207a), a partition plate (204), a lower plate (206a), and a bottom plate (206) connected from top to bottom. A through groove (204a) is opened on the upper surface of the partition plate (204) near the storage cylinder (201). The lower surface of the top plate (207) and the upper surface of the bottom plate (206) are both fixed with support blocks (208). Two support blocks (208) are connected to the upper and lower surfaces of the partition plate (204). The support blocks (208) are on the side away from the storage cylinder (201). The upper plate (207a) and the lower plate (206a) do not contact the support blocks (208). The closed side of the storage cylinder (201) also has an outer tube (205) and an inner tube (205a) that are connected. On the other side of the outer shell (1), there is a support assembly (3). The support assembly (3) includes a shell cover (301) installed on the other side of the outer shell (1). There is a bracket (302) connected to the inner wall of the shell cover (301). There are sleeved collars (303) on the periphery of the outer tube (205) and the inner tube (205a). The collars (303) abut against the bracket (302). The collars (303) are on the side away from the storage cylinder (201).

2. The novel double tube sheet heat exchanger according to claim 1, characterized in that: The mounting frame (102) symmetrically fixed to the lower part of the outer shell (1) has an L-shaped structure, and the mounting frame (102) has bolts (102a) connected in a rectangular array of threads.

3. A novel double tube sheet heat exchanger according to claim 1, characterized in that: The upper part of the outer shell (1) has a connected hot fluid outlet pipe (101), and the through hole opened on the upper surface of the top plate (207) is aligned with the lower end of the hot fluid outlet pipe (101). The lower part of the outer shell (1) has a connected hot fluid inlet pipe (101a), and the through hole opened on the lower surface of the bottom plate (206) is aligned with the upper end of the hot fluid inlet pipe (101a).

4. A novel double tube sheet heat exchanger according to claim 1, characterized in that: The storage cylinder (201) has a disk (202) installed on its open side, and a partition block (202a) fixed to the side wall of the disk (202) is in contact with the inner side wall of the storage cylinder (201).

5. A novel double tube sheet heat exchanger according to claim 4, characterized in that: The upper part of the storage cylinder (201) has a connected cold fluid inlet pipe (203), and the lower part of the storage cylinder (201) has a connected cold fluid outlet pipe (203a).

6. A novel double tube sheet heat exchanger according to claim 1, characterized in that: Both the outer tube (205) and the inner tube (205a) are U-shaped structures, and both the outer tube (205) and the inner tube (205a) pass through the support block (208).

7. A novel double tube sheet heat exchanger according to claim 1, characterized in that: The bracket (302) has a U-shaped structure, and the lower surface of the bracket (302) has symmetrically fixed reinforcing blocks (302a), which are connected to the inner wall of the shell cover (301).

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