Turbulent flow type heat exchanger arranged in staggered mode

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to a staggered turbulence type heat exchanger which comprises a heat exchanger body and sealing rings fixedly installed on the side faces of the two ends of the heat exchanger body. A low-temperature fluid inner layer circulation channel, a high-temperature fluid inner layer circulation channel, a low-temperature fluid outer layer circulation channel and a high-temperature fluid outer layer circulation channel are sequentially arranged on the end face of the heat exchanger body from inside to outside. According to the turbulent flow type heat exchanger arranged in the staggered mode, the nail type heat exchange columns are arranged on the heat exchange faces of the heat exchanger, and the nails between every two adjacent circles are arranged in the staggered mode, so that the heat exchange area is increased, turbulent flow of heat exchange media is enhanced, an original laminar flow state is converted into a turbulent flow state, and therefore the heat exchange efficiency of the heat exchanger body is improved; the high-temperature fluid communicating pipeline is arranged to penetrate through the low-temperature fluid outer-layer circulating channel to be connected with the high-temperature fluid outer-layer circulating channel, so that high-temperature fluid cannot flow into the low-temperature fluid circulating pipeline, heat exchange is carried out in the circulating process, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a turbulent flow heat exchanger with a staggered arrangement. Background Art

[0002] A heat exchanger is an energy-saving device that realizes heat exchange between two or more fluids of different temperatures. It transfers heat from a fluid with a higher temperature to a fluid with a lower temperature, so that the fluid temperature reaches the temperature with the highest working efficiency. It is also one of the main devices to improve energy utilization. However, sometimes the heat transfer effect of the heat exchanger is not good, which may lead to energy waste and reduced production efficiency. The reason for the poor heat transfer effect of the heat exchanger is firstly the insufficient surface area of ​​the heat exchanger: the heat transfer effect of the heat exchanger is proportional to its surface area, but due to various factors, the surface area of ​​the heat exchanger is insufficient, and the heat transfer effect of the heat exchanger will be greatly reduced. Secondly, the flow rate of the heat exchange medium is too low. When the flow rate of the heat exchange medium is too low due to reasons such as pipeline blockage and excessively long pipelines, the heat exchange effect will be affected. Thirdly, scaling inside the heat exchange gas will also affect the heat exchange effect.

[0003] At present, there are two types of fluid flow states: laminar flow and turbulent flow. The flow velocity of laminar flow is relatively low, and each part of the fluid flows parallel to the wall of the flow channel. The fluids in each layer do not mix with each other, and the heat transfer mainly depends on the heat conduction at the bottom of the laminar boundary. The speed of turbulent flow is relatively high, and the movement of each part of the fluid presents an irregular and chaotic state. In turbulent flow, due to the mutual mixing of fluid micro-groups, the convective heat transfer is enhanced. Under the same conditions, the convective heat transfer in the turbulent state is stronger than the convective heat transfer in the laminar state.

[0004] The high-efficiency operation of the heat exchanger is crucial to the sustainable development of industrial production. To this end, we proposed a staggered turbulent heat exchanger to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a turbulent heat exchanger with a staggered arrangement to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turbulent heat exchanger with staggered arrangement, comprising a heat exchanger body and a sealing ring, wherein the sealing ring is fixedly mounted on the side surfaces at both ends of the heat exchanger body, and the end surface of the heat exchanger body is provided with a low-temperature fluid inner layer flow channel, a high-temperature fluid inner layer flow channel, a low-temperature fluid outer layer flow channel and a high-temperature fluid outer layer flow channel from the inside to the outside;

[0007] The low-temperature fluid inner layer circulation channel is arranged in the middle position inside the heat exchanger body, the high-temperature fluid inner layer circulation channel is installed on the outer surface of the low-temperature fluid inner layer circulation channel, the low-temperature fluid outer layer circulation channel is installed on the outer surface of the high-temperature fluid inner layer circulation channel, and the high-temperature fluid outer layer circulation channel is installed on the outer surface of the low-temperature fluid outer layer circulation channel.

[0008] Preferably, the heat exchange surfaces of the inner layer circulation channel of the low-temperature fluid and the outer layer circulation channel of the low-temperature fluid are arranged with nail-type heat exchange columns at a certain interval from the beginning to the end in the length direction, and the nail-type heat exchange columns between two adjacent circles are staggered. This can enhance the energy exchange between the two heat exchange media, maximize the heat exchange efficiency, increase the heat exchange area, strengthen the turbulence of the heat exchange medium, and transform the laminar state of the low-temperature fluid into a turbulent state.

[0009] Preferably, circular holes are penetrated through the outer surfaces of the high-temperature fluid inner layer circulation channel and the low-temperature fluid outer layer circulation channel, and high-temperature fluid connecting pipes are fixedly installed on the inner walls of the circular holes penetrated through the outer surfaces of the high-temperature fluid inner layer circulation channel and the low-temperature fluid outer layer circulation channel, and the high-temperature fluid connecting pipes are symmetrically distributed on the upper and lower sides of the outer surface of the high-temperature fluid inner layer circulation channel.

[0010] Preferably, a hole is penetrated through the lower part of one side of the outer surface of the heat exchanger body and a high-temperature fluid inlet pipe is fixedly installed on the inner wall of the hole, and the upper end of the high-temperature fluid inlet pipe is fixedly connected to the inner wall of the high-temperature fluid outer layer flow channel.

[0011] Preferably, a hole is penetrated through the lower part of one side of the outer surface of the heat exchanger body, and a drain outlet pipe is fixedly installed on the inner wall of the hole, and the upper end of the drain outlet pipe is fixedly connected to the outer surface of the inner layer flow channel of the high-temperature fluid.

[0012] Preferably, a low-temperature fluid inlet pipe is fixedly installed on the side of one end of the heat exchanger body, and a low-temperature fluid outlet pipe is fixedly installed on the side of the other end of the heat exchanger body. One side of the outer surface of the low-temperature fluid inlet pipe and the low-temperature fluid outlet pipe is fixedly connected to the inner wall of the sealing ring distributed on the sides of both ends of the heat exchanger body.

[0013] Preferably, the nail-type heat exchange column is provided with a first circle of nail-type heat exchange columns and a second circle of nail-type heat exchange columns, the first circle of nail-type heat exchange columns are fixedly installed on the inner wall of the outer circulation channel of the low-temperature fluid at equal intervals, and the second circle of nail-type heat exchange columns are fixedly installed on the inner wall of the inner circulation channel of the low-temperature fluid at equal intervals.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The staggered turbulent heat exchanger increases the heat exchange area and strengthens the turbulence of the heat exchange medium by arranging nail-type heat exchange columns on each heat exchange surface of the heat exchanger. The nails between two adjacent circles are staggered, thereby converting the original laminar flow state into a turbulent flow state, thereby improving the heat exchange efficiency of the heat exchanger body.

[0016] 2. The staggered turbulent heat exchanger sets a high-temperature fluid connecting pipe through the low-temperature fluid outer circulation channel to connect the high-temperature fluid outer circulation channel so that the high-temperature fluid will not flow into the low-temperature fluid circulation pipe, and heat exchange is performed during the circulation process to improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the heat exchanger of the utility model;

[0019] Figure 3 This is a schematic diagram of the heat exchanger structure end face from the right side of the present utility model;

[0020] Figure 4 It is a schematic structural diagram of the inner heat exchange surface of the outer flow channel of the low-temperature fluid of the utility model.

[0021] In the figure: 1. high-temperature fluid inlet pipe; 2. high-temperature fluid outer circulation channel; 3. high-temperature fluid connecting pipe; 4. high-temperature fluid inner circulation channel; 5. hydrophobic outlet pipe; 6. low-temperature fluid inlet pipe; 7. low-temperature fluid outer circulation channel; 8. low-temperature fluid inner circulation channel; 9. low-temperature fluid outlet pipe; 10. nail-type heat exchange column; 101. first circle of nail-type heat exchange column; 102. second circle of nail-type heat exchange column; 11. heat exchanger body; 111. sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] A turbulent heat exchanger with an offset arrangement includes a heat exchanger body 11 and a sealing ring 111, wherein the sealing ring 111 is fixedly installed on the side surfaces of both ends of the heat exchanger body 11, a low-temperature fluid inlet pipe 6 is fixedly installed on the side surface of one end of the heat exchanger body 11, and a low-temperature fluid outlet pipe 9 is fixedly installed on the side surface of the other end of the heat exchanger body 11, one side of the outer surface of the low-temperature fluid inlet pipe 6 and the low-temperature fluid outlet pipe 9 is fixedly connected to the inner wall of the sealing ring 111 distributed on the side surfaces of both ends of the heat exchanger body 11, and the end surface of the heat exchanger body 11 is provided with a low-temperature fluid inner layer circulation channel 8, a high-temperature fluid inner layer circulation channel 4, a low-temperature fluid outer layer circulation channel 7 and a high-temperature fluid outer layer circulation channel 2 from the inside to the outside;

[0025] The low-temperature fluid inner layer circulation channel 8 is arranged in the middle position inside the heat exchanger body 11, the high-temperature fluid inner layer circulation channel 4 is installed on the outer surface of the low-temperature fluid inner layer circulation channel 8, the low-temperature fluid outer layer circulation channel 7 is installed on the outer surface of the high-temperature fluid inner layer circulation channel 4, and the high-temperature fluid outer layer circulation channel 2 is installed on the outer surface of the low-temperature fluid outer layer circulation channel 7.

[0026] The heat exchange surfaces of the inner layer circulation channel 8 of the low-temperature fluid and the outer layer circulation channel 7 of the low-temperature fluid are arranged with nail-type heat exchange columns 10 at a certain interval from the beginning to the end in the length direction, and the nail-type heat exchange columns 10 between two adjacent circles are staggered. The nail-type heat exchange columns 10 are provided with a first circle 101 of nail-type heat exchange columns and a second circle 102 of nail-type heat exchange columns. The first circle 101 of nail-type heat exchange columns are fixedly installed on the inner wall of the outer layer circulation channel 7 of the low-temperature fluid at equal intervals, and the second circle 102 of nail-type heat exchange columns are fixedly installed on the inner wall of the inner layer circulation channel 8 of the low-temperature fluid at equal intervals. By arranging nail-type heat exchange columns 10 on each heat exchange surface of the heat exchanger and staggering the nails between two adjacent circles, the heat exchange area is increased, the turbulence of the heat exchange medium is strengthened, and the original laminar state is transformed into a turbulent state, thereby improving the heat exchange efficiency of the heat exchanger body 11.

[0027] Circular holes are penetrated on the outer surfaces of the high-temperature fluid inner layer circulation channel 4 and the low-temperature fluid outer layer circulation channel 7. A high-temperature fluid communication pipe 3 is fixedly installed on the inner walls of the circular holes penetrated on the outer surfaces of the high-temperature fluid inner layer circulation channel 4 and the low-temperature fluid outer layer circulation channel 7. The high-temperature fluid communication pipes 3 are symmetrically distributed on the upper and lower sides of the outer surface of the high-temperature fluid inner layer circulation channel 4. The high-temperature fluid communication pipe 3 is arranged to pass through the low-temperature fluid outer layer circulation channel 7 to connect the high-temperature fluid outer layer circulation channel 2 so that the high-temperature fluid will not flow into the low-temperature fluid circulation pipe, and heat exchange is performed during the circulation process to improve the heat exchange efficiency. A hole is penetrated on the lower part of one side of the outer surface of the heat exchanger body 11, and a high-temperature fluid inlet pipe 1 is fixedly installed on the inner wall of the hole. The upper end of the high-temperature fluid inlet pipe 1 is fixedly connected to the inner wall of the high-temperature fluid outer layer circulation channel 2. A hole is penetrated on the lower part of one side of the outer surface of the heat exchanger body 11, and a drain outlet pipe 5 is fixedly installed on the inner wall of the hole. The upper end of the drain outlet pipe 5 is fixedly connected to the outer surface of the high-temperature fluid inner layer circulation channel 4.

[0028] The low-temperature fluid medium enters the low-temperature fluid outer layer circulation channel 7 and the low-temperature fluid inner layer circulation channel 8 from the low-temperature fluid inlet pipe 6. The medium in the low-temperature fluid outer layer circulation channel 7 and the low-temperature fluid inner layer circulation channel 8 flows simultaneously, and finally flows out from the low-temperature fluid outlet pipe 9. The high-temperature fluid medium enters the high-temperature fluid outer layer circulation channel 2 from the high-temperature fluid inlet pipe 1, and the flow direction is opposite to the flow direction of the low-temperature fluid medium, and countercurrent heat exchange occurs. When the high-temperature fluid medium flows to the tail of the outer layer channel, it enters the high-temperature fluid inner layer circulation channel 4 through the high-temperature fluid connecting pipe 3 and continues to flow and exchange heat. At this time, the flow direction is the same as the flow direction of the low-temperature fluid medium, and downstream heat exchange occurs. When the high-temperature fluid medium flows to the tail of the inner layer channel, it is discharged through the drain outlet pipe 5 and enters other collection containers for other uses.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A turbulent heat exchanger with an offset arrangement, comprising a heat exchanger body (11) and a sealing ring (111), wherein the sealing ring (111) is fixedly mounted on the side surfaces of both ends of the heat exchanger body (11), characterized in that: The end surface of the heat exchanger body (11) is provided with a low-temperature fluid inner layer circulation channel (8), a high-temperature fluid inner layer circulation channel (4), a low-temperature fluid outer layer circulation channel (7) and a high-temperature fluid outer layer circulation channel (2) from the inside to the outside; The low-temperature fluid inner layer circulation channel (8) is arranged in the middle position inside the heat exchanger body (11), the high-temperature fluid inner layer circulation channel (4) is installed on the outer surface of the low-temperature fluid inner layer circulation channel (8), the low-temperature fluid outer layer circulation channel (7) is installed on the outer surface of the high-temperature fluid inner layer circulation channel (4), and the high-temperature fluid outer layer circulation channel (2) is installed on the outer surface of the low-temperature fluid outer layer circulation channel (7).

2. The staggered turbulent heat exchanger according to claim 1, characterized in that: The heat exchange surfaces of the low-temperature fluid inner layer circulation channel (8) and the low-temperature fluid outer layer circulation channel (7) are provided with nail-type heat exchange columns (10) arranged at a certain interval from beginning to end in the length direction, and the nail-type heat exchange columns (10) between two adjacent circles are staggered.

3. The staggered turbulent heat exchanger according to claim 1, characterized in that: The outer surface of the high-temperature fluid inner layer circulation channel (4) and the outer surface of the low-temperature fluid outer layer circulation channel (7) are penetrated with circular holes, and the inner walls of the circular holes penetrated with the outer surface of the high-temperature fluid inner layer circulation channel (4) and the outer surface of the low-temperature fluid outer layer circulation channel (7) are fixedly installed with high-temperature fluid communication pipes (3), and the high-temperature fluid communication pipes (3) are symmetrically distributed on the upper and lower sides of the outer surface of the high-temperature fluid inner layer circulation channel (4).

4. The staggered turbulent heat exchanger according to claim 1, characterized in that: A hole is penetrated through the lower part of one side of the outer surface of the heat exchanger body (11), and a high-temperature fluid inlet pipe (1) is fixedly installed on the inner wall of the hole. The upper end of the high-temperature fluid inlet pipe (1) is fixedly connected to the inner wall of the high-temperature fluid outer layer circulation channel (2).

5. The staggered turbulent heat exchanger according to claim 1, characterized in that: A hole is penetrated through the lower part of one side of the outer surface of the heat exchanger body (11), and a drain outlet pipe (5) is fixedly installed on the inner wall of the hole. The upper end of the drain outlet pipe (5) is fixedly connected to the outer surface of the inner layer flow channel (4) of the high-temperature fluid.

6. The staggered turbulent heat exchanger according to claim 1, characterized in that: A low-temperature fluid inlet pipe (6) is fixedly mounted on the side surface of one end of the heat exchanger body (11), and a low-temperature fluid outlet pipe (9) is fixedly mounted on the side surface of the other end of the heat exchanger body (11); one side of the outer surface of the low-temperature fluid inlet pipe (6) and the low-temperature fluid outlet pipe (9) is fixedly connected to the inner wall of a sealing ring (111) distributed on the side surfaces of both ends of the heat exchanger body (11).

7. The staggered turbulent heat exchanger according to claim 2, characterized in that: The nail-type heat exchange column (10) is provided with a first circle (101) of the nail-type heat exchange column and a second circle (102) of the nail-type heat exchange column. The first circle (101) of the nail-type heat exchange column is fixedly installed on the inner wall of the outer layer circulation channel (7) of the low-temperature fluid at equal intervals, and the second circle (102) of the nail-type heat exchange column is fixedly installed on the inner wall of the inner layer circulation channel (8) of the low-temperature fluid at equal intervals.

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