Multi-stage laminar heat exchanger

Abstract

The multistage laminar heat exchanger comprises a heat exchange shell, a first medium feeding pipe is arranged at the lower end of the left side of the heat exchange shell, and a first medium discharging pipe is correspondingly arranged at the upper end of the right side of the heat exchange shell; a first medium is arranged in the heat exchange shell, heat exchange partition plates are further correspondingly installed in the heat exchange shell and are of a staggered installation structure in the heat exchange shell, and overflowing gaps are reserved between the ends of the corresponding partition plates and the heat exchange shell, so that the path of the first medium entering the heat exchange shell is an S-shaped path. According to the device, a second medium correspondingly enters the heat exchange inner cavity in the heat exchange partition plate, so that when the first medium enters the heat exchange shell, the second medium flows in the heat exchange inner cavity at the same time, the first medium exchanges heat with the second medium in the heat exchange inner cavity in the heat exchange partition plate in the process of flowing in an S-shaped path, and the heat exchange efficiency is effectively improved; the heat exchange partition plate not only has the flow blocking function, but also has the function of being compatible with a second medium, and the structural design is quite ingenious and reasonable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heat exchanger in energy heat exchange, specifically to a multistage laminar flow heat exchanger. BACKGROUND

[0002] In the prior art, the heat exchanger has a simple working principle, and temperature exchange is usually realized by utilizing the temperature difference of heat exchange medium, and specifically, two different heat exchange pipes are respectively connected with two different heat exchange media to realize heat exchange.

[0003] For example, the "host cooling water heat exchanger" disclosed in the publication (announcement) number CN216409865U, which includes a shell, a heat exchange pipe assembly arranged in the shell, and a first end cover and a second end cover arranged at both ends of the shell, respectively, the shell is provided with a first inlet, a first outlet and a third outlet, the heat exchange pipe assembly includes a plurality of heat exchange pipes, the first end cover is provided with a second inlet and a second outlet communicated with the heat exchange pipes, respectively, and a partition plate is arranged on the first end cover to separate the second inlet and the second outlet. The utility model can obtain different outlet temperatures of the host cooling water without reducing the flow of seawater, and can reduce the risk of pipe blockage in the heat exchanger while ensuring the operation of the host; the water flow of the two outlets can be controlled, so that the cooling water temperature returned to the host can be controlled, and the different cooling water temperature requirements during the operation of the host can be met; the elastic impact-resistant plate is arranged to protect the heat exchange pipes and prolong the service life of the heat exchange pipes.

[0004] For example, the "tubular heat exchanger" disclosed in the publication (announcement) number CN215177115U, which includes a shell and a baffle, both ends of the shell are provided with tube sheets, and the outer side of the tube sheet is provided with a tube box, the tube sheet is uniformly provided with heat exchange pipes, the uppermost heat exchange pipe is provided with a flow divider with a flow divider, and the flow divider is fixedly connected with the heat exchange pipe, the shell is provided with a flow guide cavity, and the position of the flow guide cavity corresponds to the position of the baffle. The flow divider and the flow guide cavity of the tubular heat exchanger, when high-pressure water flows into the shell, the flow divider divides the water flow into two parts, and the water flow is separated along the arc surfaces on both sides of the flow divider, greatly reducing the impact of high-pressure water flow on the heat exchange pipes, preventing the heat exchange pipes from deforming and breaking after long-term use, the flow guide cavity increases the space between the top of the baffle and the shell, greatly reducing the pressure of the water flow through this place, preventing the deformation of the shell and the baffle, reducing the safety hazard, greatly improving the safety, and also ensuring the working efficiency.

[0005] The above technical solutions are all to realize the heat exchange function through two different media, but in the above technical solutions, the heat exchange structure is relatively common and ordinary, that is, two different media are separated by a pipeline or a partition plate, and then mixed to realize heat exchange, and the heat exchange efficiency of the above technical structure is actually not high, which will cause some heat loss, and the heat exchange efficiency and heat exchange quality cannot be guaranteed.

[0006] Therefore, in order to solve the above problems, it is necessary to develop an inner cavity type heat exchanger which can improve the heat exchange efficiency and heat exchange quality. Practical new type content

[0007] The utility model aims at the deficiency of prior art, provides a multistage laminar flow heat exchanger, and the technical scheme is as follows:

[0008] A multistage laminar flow heat exchanger, comprising a heat exchange shell, a first medium feeding pipe is arranged at the lower end of the left side of the heat exchange shell, and a first medium discharging pipe is correspondingly arranged at the upper end of the right side of the heat exchange shell; and a heat exchange partition plate is correspondingly installed in the heat exchange shell, and the heat exchange partition plate is installed in a staggered manner in the heat exchange shell, and a flow gap is left between the end of the corresponding partition plate and the heat exchange shell, so that the path of the first medium entering the heat exchange shell is an S-shaped path.

[0009] Each heat exchange partition plate is further provided with a heat exchange inner cavity, and the lower end of the leftmost heat exchange partition plate is correspondingly provided with a second medium feeding pipe communicated with the heat exchange inner cavity; and the rightmost heat exchange partition plate is provided with a second medium discharging pipe communicated with the heat exchange inner cavity.

[0010] Corresponding communication pipes are further installed between the adjacent heat exchange partition plates in the heat exchange shell, the communication pipes correspondingly communicate the heat exchange inner cavities in the heat exchange shells on both sides, so that the second medium entering from the second medium feeding pipe is finally discharged from the second medium discharging pipe after passing through the communication pipes.

[0011] Further, the communication pipes are uniformly arranged on the heat exchange partition plates, and the installation area of the communication pipes is set as a half size area of the heat exchange partition plate.

[0012] Further, the communication pipes between the adjacent heat exchange partition plates are provided with three layers, and each layer is correspondingly provided with three communication pipes.

[0013] Further, a laminar flow partition plate is further installed in each heat exchange inner cavity of each heat exchange partition plate, and the laminar flow partition plate is arranged in a staggered manner in the heat exchange inner cavity, so that the path of the second medium entering the heat exchange inner cavity is an S-shaped path.

[0014] Further, the heat exchange partition plate, the communication pipe and the laminar flow partition plate are all made of copper material with good heat conductivity.

[0015] Further, the heat exchange shell is provided with at least six heat exchange partitions, and the intervals between adjacent heat exchange partitions are the same; the heat exchange inner cavity is provided with at least six laminar flow partitions, and the intervals between adjacent laminar flow partitions are the same.

[0016] Further, the first medium is a liquid medium, and the second medium is a gas medium.

[0017] Further, temperature measuring devices are installed on the first medium feeding pipe, the first medium discharging pipe, the second medium feeding pipe and the second medium discharging pipe.

[0018] 1) The heat exchange partitions in the device not only have the flow blocking effect, but also are used as carriers for carrying the second medium, and the heat exchange inner cavities in the heat exchange partitions correspond to the second medium, so that when the first medium enters the heat exchange shell, the second medium flows in the heat exchange inner cavities at the same time, the first medium exchanges heat with the second medium in the heat exchange inner cavities in the process of flowing in the S-shaped path, the heat exchange efficiency is effectively improved, the heat exchange partitions not only have the flow blocking effect, but also have the compatibility of the second medium, and the structure design is very ingenious and reasonable.

[0019] 2) The adjacent heat exchange partitions in the device are correspondingly provided with the communication pipes, the communication pipes are used for connecting the heat exchange inner cavities in the heat exchange partitions, and the positions of the communication pipes are correspondingly arranged, so that the second medium in the heat exchange inner cavities flows for a certain distance and then is transferred through the communication pipes, and after the first medium is blocked by the heat exchange partitions, the flowing route passes through the communication pipes and directly exchanges heat with the second medium in the communication pipes, and the heat exchange efficiency is improved.

[0020] 3) The path of the first medium is arranged in an S shape through the heat exchange partitions, and the laminar flow partitions are arranged in the heat exchange inner cavities of each heat exchange partition, so that the path of the second medium in each heat exchange inner cavity is arranged in an S shape, the path of the second medium in the heat exchange inner cavities is increased, and the heat exchange efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural drawing of the utility model;

[0022] Figure 2 It is a first medium flow direction schematic view in the utility model;

[0023] Figure 3 It is Figure 1 A view in the utility model;

[0024] Figure 4 It is Figure 1 B-B sectional view in the utility model;

[0025] The heat exchange shell 1 is provided with a first medium feeding pipe 101 at the lower left end and a first medium discharging pipe 102 at the upper right end. DETAILED DESCRIPTION

[0026] The utility model will be further illustrated below in combination with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the utility model and should be understood as being used for illustrating the utility model only and not for limiting the scope of the utility model.

[0027] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , a multi-stage laminar flow heat exchanger comprises a heat exchange shell 1, which is provided with a first medium feeding pipe 101 at the lower left end and a first medium discharging pipe 102 at the upper right end. The heat exchange shell 1 is also provided with a heat exchange partition plate 2. The heat exchange partition plates 2 are installed in a staggered manner in the heat exchange shell 1. The end of each heat exchange partition plate 2 is spaced apart from the heat exchange shell 1 by a flow gap 3, so that the path of the first medium entering the heat exchange shell 1 is S-shaped.

[0028] Each heat exchange partition plate 2 is also provided with a heat exchange cavity 203. The lower end of the leftmost heat exchange partition plate 2 is provided with a second medium feeding pipe 201, which communicates with the heat exchange cavity 203. The rightmost heat exchange partition plate 2 is provided with a second medium discharging pipe 202, which also communicates with the heat exchange cavity 203.

[0029] The heat exchange shell 1 is also provided with a communication pipe 4 between adjacent heat exchange partition plates 2. The communication pipe 4 communicates the heat exchange cavities 203 on both sides of the heat exchange shell 1, so that the second medium entering the second medium feeding pipe 201 is finally discharged from the second medium discharging pipe 202 after passing through the communication pipe 4.

[0030] The communication pipes 4 are evenly spaced on the heat exchange partition plates 2. The installation area of the communication pipes 4 is half the size of the heat exchange partition plates 2.

[0031] The communication pipes 4 between adjacent heat exchange partition plates 2 are divided into three layers, each of which is provided with three communication pipes.

[0032] The heat exchange cavities 203 in each heat exchange partition plate 2 are also provided with a laminar flow partition plate 5. The laminar flow partition plates 5 are staggered in the heat exchange cavities 203, so that the path of the second medium entering the heat exchange cavities 203 is S-shaped.

[0033] The heat exchange partition plates 2, the communication pipes 4 and the laminar flow partition plates 5 are made of copper, which is easy to conduct heat.

[0034] The heat exchange partition 2 in the heat exchange shell 1 is provided with at least six, and the interval between adjacent heat exchange partitions 2 is the same; the laminar flow partition 5 in the heat exchange cavity 203 is provided with at least six, and the interval between adjacent laminar flow partitions 5 is the same.

[0035] The first medium is provided as a liquid medium, and the second medium is provided as a gas medium; the temperature measuring device 6 is correspondingly installed on the first medium feeding pipe 101, the first medium discharging pipe 102, the second medium feeding pipe 201 and the second medium discharging pipe 202.

[0036] The technical scheme of the device is provided with a heat exchange partition first, and the path of the first medium entering the heat exchange shell is an S-shaped path through the arrangement of the heat exchange partition, which can effectively increase the path of the first medium and increase the heat exchange efficiency.

[0037] The heat exchange partition in the device not only has a flow blocking effect, but also is used as a carrier for carrying the second medium, and the heat exchange cavity in the heat exchange partition corresponds to the second medium, so that when the first medium enters the heat exchange shell, the second medium flows in the heat exchange cavity, and the first medium exchanges heat with the second medium in the heat exchange cavity during the S-shaped path flow, effectively improving the heat exchange efficiency. The heat exchange partition not only has a flow blocking effect, but also has a compatible second medium effect, and the structure design is very ingenious and reasonable.

[0038] The heat exchange partitions are correspondingly provided with a communication pipe, the communication pipe is connected with the heat exchange cavity in the heat exchange partition, and the position of the communication pipe is correspondingly arranged, so that the second medium in the heat exchange cavity has a certain flow before being transferred through the communication pipe, and the first medium is blocked by the heat exchange partition after flowing, and the flow route passes through the communication pipe to directly exchange heat with the second medium in the communication pipe, thereby increasing the heat exchange efficiency.

[0039] The heat exchange partition is used to set the path of the first medium into an S shape, and the laminar flow partition is arranged in the heat exchange cavity in each heat exchange partition, and the path of the second medium in each heat exchange cavity is set into an S shape, thereby increasing the path of the second fluid in the heat exchange cavity and effectively increasing the heat exchange efficiency.

[0040] The above specific embodiment is only a preferred embodiment of the present application, and is not used to limit the implementation and the scope of claims of the present application. Any equivalent changes and modifications made according to the content of the patent protection scope of the present application should be included in the patent application scope of the present application.

Claims

1. A multi-stage laminar flow heat exchanger, characterized by: The application relates to a heat exchange device, which comprises a heat exchange shell (1), a first medium feeding pipe (101) arranged at the lower left end of the heat exchange shell (1), a first medium discharging pipe (102) arranged at the upper right end of the heat exchange shell (1), a heat exchange partition plate (2) arranged in the heat exchange shell (1), and a flow gap (3) arranged between the end of the heat exchange partition plate (2) and the heat exchange shell (1). The heat exchange inner cavity (203) is arranged in each heat exchange partition plate (2), the second medium feeding pipe (201) is arranged at the lower end of the leftmost heat exchange partition plate (2), the second medium discharging pipe (202) is arranged at the rightmost heat exchange partition plate (2), and the communication pipe (4) is arranged between the adjacent heat exchange partition plates (2) in the heat exchange shell (1). The communication pipe (4) is arranged in the heat exchange partition plate (2) at intervals, and the installation area of the communication pipe (4) is half the size of the heat exchange partition plate (2).

2. A multi-stage laminar flow heat exchanger according to claim 1, characterized in that: The communication pipe (4) is arranged in three layers between the adjacent heat exchange partition plates (2), and each layer is provided with three communication pipes.

3. A multi-stage laminar flow heat exchanger according to claim 2, characterized in that: The laminar flow partition plate (5) is arranged in the heat exchange inner cavity (203) of each heat exchange partition plate (2), and the laminar flow partition plate (5) is arranged in the heat exchange inner cavity (203) at intervals.

4. A multi-stage laminar flow heat exchanger according to claim 1, characterized in that: The heat exchange partition plate (2), the communication pipe (4) and the laminar flow partition plate (5) are made of copper material.

5. A multi-stage laminar flow heat exchanger according to claim 4, characterized in that: The heat exchange partition plate (2) is arranged in the heat exchange shell (1) at least six times, and the interval between the adjacent heat exchange partition plates (2) is the same.

6. A multi-stage laminar flow heat exchanger according to claim 4, characterized in that: The first medium is a liquid medium, and the second medium is a gas medium.

7. A multi-stage laminar flow heat exchanger according to claim 1, characterized in that: The temperature measuring device (6) is arranged on the first medium feeding pipe (101), the first medium discharging pipe (102), the second medium feeding pipe (201) and the second medium discharging pipe (202).

8. A multi-stage laminar flow heat exchanger according to claim 1, characterized in that: ​

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