Plate-type split-flow heat exchanger

Abstract

The plate-type shunting heat exchanger comprises a plurality of heat exchange pipes, a plurality of heat dissipation fins are fixed on all the heat exchange pipes, all the heat exchange pipes are arranged in at least two rows, and the feeding ends of all the heat exchange pipes in the same row are communicated with discharging ports of plate-type shunts on the corresponding sides of the heat exchange pipes. The discharging ends of all the heat exchange pipes in the other row are communicated with a material returning opening of the plate type flow divider, the discharging ends of all the heat exchange pipes in the same row are communicated with a feeding opening of the plate type liquid returning device on the corresponding side, and the feeding ends of all the heat exchange pipes in the other row are communicated with a discharging opening of the plate type liquid returning device on the corresponding side. Materials entering the main feeding channel can be evenly discharged from the corresponding liquid outlet ends in a step-by-step mode, it is guaranteed that the discharging amount of the materials finally discharged from all the liquid outlet ends is basically consistent, and the flow dividing effect is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchanger related equipment, and more specifically to a plate type shunt heat exchanger. Background Art

[0002] In the heat exchangers of existing equipment such as refrigeration equipment, in various evaporators for example, a porous distributor is generally arranged on one side of the main body. It has one inlet and multiple outlets. All the outlets are connected to the corresponding inlets of the heat exchange tubes of the evaporator through connecting pipes. The distributor is conical. Then, one end of multiple copper tubes is connected to the outlet, and the other end is connected to the corresponding inlet of the heat exchange tube. It has a large volume and is arranged on one side of the main body, greatly occupying external space, and the use effect is not ideal. Especially in some indoor air conditioning equipment, installing this structure makes the space occupied too large, increases the volume of the indoor unit, occupies too much indoor space, and the implementation effect is not ideal. Moreover, due to reasons such as the placement position of the distributor, it cannot ensure that the materials (refrigerant) coming out of each outlet are the same, and the effect is not ideal. For example, when placed horizontally, the upper part definitely does not discharge materials as fast as the lower part and does not have as much discharge amount as the lower part. And when the material is a gas-liquid mixture, the gas amount in the upper part discharge is more and the liquid amount is less, while the liquid amount in the lower part is more and the gas amount is less, and the uniformity is insufficient; Therefore, existing ones adopt a cylindrical type distributor structure to reduce its space and improve its equalization effect. For example, Figure 1 As shown, it reduces the liquid inlet and gas inlet at the lower part, and can convey the gas-liquid mixed refrigerant as much as possible along the vertical channel in the middle, so as to ensure that the gas-liquid mixture coming out of the through holes formed on the side wall of the vertical channel can be discharged evenly, improving the uniformity. However, its uniformity still has certain limitations. Under the influence of gravity in the vertical state, the uniform discharge is still limited.

[0003] Moreover, such a structure is suitable for flat tube type microchannel heat exchangers and is not suitable for tube type heat exchangers. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a plate type shunt heat exchanger, which can evenly divide the materials entering from the total feed channel level by level and discharge evenly from the corresponding liquid outlet ends, ensuring that the discharge amounts of the materials finally discharged from all the liquid outlet ends are basically the same, and greatly improving the shunt effect.

[0005] The solution of the present invention to solve the above technical problems is: A plate-type shunt heat exchanger includes multiple heat exchange tubes, and a plurality of heat dissipation fins are fixed on all the heat exchange tubes. All the heat exchange tubes are arranged in at least two columns. The feed ends of all the heat exchange tubes in the same column are connected to the discharge ports of the plate-type shunt on the corresponding side, and the discharge ends of all the heat exchange tubes in the other column are connected to the return ports of the plate-type shunt. The discharge ends of all the heat exchange tubes in the same column are connected to the feed ports of the plate-type liquid returner on the corresponding side, and the feed ends of all the heat exchange tubes in the other column are connected to the discharge ports of the plate-type liquid returner on the corresponding side.

[0006] The plate-type liquid returner includes a front fixing plate of the liquid returner, a rear fixing plate of the liquid returner, and a central fixing plate of the liquid returner. The front fixing plate of the liquid returner is fixed on the front wall surface of the central fixing plate of the liquid returner and covers the front wall surface of the central fixing plate of the liquid returner. The rear fixing plate of the liquid returner is fixed on the rear wall surface of the central fixing plate of the liquid returner, and the rear fixing plate of the liquid returner covers the rear wall surface of the central fixing plate of the liquid returner. A plurality of waist-shaped through grooves are formed on the central fixing plate of the liquid returner. A plurality of liquid inlet connection through holes and a plurality of liquid outlet connection through holes are formed on the front fixing plate of the liquid returner. Each waist-shaped through groove communicates with the corresponding liquid inlet connection through hole and liquid outlet connection through hole. The discharge end of the rear part of the corresponding heat exchange tube is connected to the corresponding liquid inlet connection through hole, and the feed end of the rear part of the corresponding heat exchange tube is connected to the corresponding liquid outlet connection through hole.

[0007] The plate-type shunt includes a main vertical channel plate. A front fixing plate of the shunt is fixed on the front end surface of the main vertical channel plate, and the front fixing plate of the shunt covers the front end surface of the main vertical channel plate. A rear connection fixing plate of the shunt is installed on the rear wall surface of the main vertical channel plate. A total feed through hole is formed in the middle of the front fixing plate of the shunt. The total feed through hole communicates with and corresponds to the feed port of the total feed channel of the main vertical channel plate. The discharge end of the main vertical channel plate communicates with and corresponds to the corresponding front discharge connection through hole formed on the rear connection fixing plate of the shunt. The feed end of the front part of the corresponding heat exchange tube communicates with the corresponding front discharge connection through hole. The discharge end of the front part of the corresponding heat exchange tube communicates with the total discharge through groove formed on the corresponding main vertical channel plate. The total discharge through groove communicates with and corresponds to the total discharge through hole formed on the front fixing plate of the shunt.

[0008] The discharge port of the total feed channel is connected to the middle of the first vertical channel formed on the main vertical channel plate. One end of the first vertical channel is connected to one end of the first horizontal channel formed on the main vertical channel plate, and the other end of the first vertical channel is connected to one end of the second horizontal channel formed on the main vertical channel plate; The other end of the first horizontal channel is connected to the first channel group formed on the main vertical channel plate. The other end of the second horizontal channel is connected to the second channel group formed on the main vertical channel plate. The final discharge ends of the first channel group are even numbers. The first horizontal channel is a horizontal straight channel. The final discharge ends of the second channel group are odd numbers other than 1. The second horizontal channel is an inclined channel. The total feed channel is an inclined channel; Or the final discharge end of the first channel group is an odd number other than 1, the first horizontal channel is an inclined channel, the final discharge end of the second channel group is an odd number other than 1, the second horizontal channel is an inclined channel, the number of the final discharge ends of the second channel group is the same as that of the final discharge ends of the first channel group, and the total feed channel is a horizontal straight channel; Or the other end of the first horizontal channel is connected to the first channel group, the final discharge ends of the first channel group are two, the other end of the second horizontal channel is the discharge end, and the first horizontal channel is a horizontal straight channel; Or the final discharge ends of the first channel group are even numbers, the first horizontal channel is a horizontal straight channel, the final discharge ends of the second channel group are even numbers, the second horizontal channel is a horizontal straight channel, the number of the final discharge ends of the second channel group is the same as that of the final discharge ends of the first channel group, and the total feed channel is a horizontal straight channel.

[0009] When the final discharge ends of the first channel group are two, it includes a second vertical channel, the two ends of the second vertical channel are discharge ends, and one end of the first horizontal channel is connected to the middle of the second vertical channel; When the final discharge ends of the second channel group are two, it includes a second vertical channel, the two ends of the second vertical channel are discharge ends, and one end of the second horizontal channel is connected to the middle of the second vertical channel; When the final discharge ends of the first channel group are even numbers other than 2, it includes a second vertical channel, one end of the first horizontal channel is connected to the middle of the second vertical channel, the two ends of the second vertical channel are respectively connected to one end of two third horizontal channels, and the other ends of the two third horizontal channels are connected to the middle of the corresponding two third vertical channels. The two ends of the third vertical channel are discharge ends or the two ends of the third vertical channel are further connected to the corresponding fourth horizontal channels, and in this way, the number of discharge ends of 2 to the Nth power is formed in turn. All its horizontal channels are horizontal straight channels and are perpendicular to all vertical channels; When the final discharge ends of the second channel group are even numbers other than 2, its structure is the same as that when the final discharge ends of the first channel group are even numbers, and one end of its second horizontal channel is connected to the middle of the corresponding second vertical channel.

[0010] The final discharge ends of the first channel group and the second channel group are odd numbers other than 1, and at the same time, the quantities are the same and the distributions are the same. They both include a second vertical channel. One end of the second vertical channel is connected to one end of a third horizontal channel, the other end of the third horizontal channel is connected to the middle of a third vertical channel, the two ends of the third vertical channel are discharge ends, and the other end of the second vertical channel is a discharge end. At this time, one ends of the first horizontal channel and the second horizontal channel are respectively connected to the middle of the corresponding second vertical channel. The first horizontal channel and the second horizontal channel are inclined channels, and the remaining horizontal channels are perpendicular to the vertical channels.

[0011] On the inner side walls of the liquid inlet connection through-hole and the liquid outlet connection through-hole on the front fixing plate of the liquid returner, a sleeve part extending backward is formed. The sleeve part is located in the corresponding waist-shaped through-slot, and the rear end of the corresponding heat exchange tube is clamped on the inner side wall of the corresponding sleeve part and fixed by welding.

[0012] On the front wall surface of the front fixing plate of the diverter, a feed pipe connection head and a discharge pipe connection head are fixed by welding. The feed pipe connection head communicates with and corresponds to the total feed through-hole, and the discharge pipe connection head communicates with and corresponds to the total discharge through-hole; On the rear wall surface of the main vertical channel plate, a first rear connection end plate is fixed. The front wall surface of the first rear connection end plate covers the rear wall surface of the main vertical channel plate. A plurality of vertically arranged connection through-holes are formed on the first rear connection end plate. The connection through-holes communicate with and correspond to the corresponding discharge ends of the main vertical channel plate. A first vertical through-slot is formed on the first rear connection end plate. The first vertical through-slot corresponds to and communicates with the total discharge through-slot formed on the main vertical channel plate; On the rear end surface of the first rear connection end plate, a second connection plate is fixed. The front end surface of the second connection plate covers the rear end surface of the first rear connection end plate. A plurality of vertically arranged second connection through-holes are formed on the second connection plate. The second connection through-holes communicate with and correspond to the corresponding connection through-holes. A second vertical through-slot is formed on the second connection plate. The second vertical through-slot corresponds to and communicates with the second vertical through-slot; On the rear end surface of the second connection plate, a diverter rear connection fixing plate is fixed. The front end surface of the diverter rear connection fixing plate covers the rear end surface of the second connection plate. A plurality of front discharge connection through-holes and a plurality of front return connection through-holes are formed on the diverter rear connection fixing plate. Sleeve parts extending forward are formed on the inner side walls of the front discharge connection through-holes and the front return connection through-holes. The sleeve part of the front discharge connection through-hole is inserted into and communicates with the corresponding second connection through-hole formed on the second connection plate. The sleeve part of the front return connection through-hole is inserted into and communicates with the second vertical through-slot formed on the second connection plate.

[0013] The prominent effect of the present invention is: Compared with the prior art, it can evenly divide the materials entering from the total feed channel level by level and discharge them evenly from the corresponding liquid discharge ends, ensuring that the discharge amounts of the materials finally discharged from all liquid discharge ends are basically the same, greatly improving the diversion effect.

[0014] At the same time, the U-shaped connection heads between the heat exchange tubes are cancelled and a plate structure is adopted for connection. Its processing difficulty is greatly reduced, and its volume is greatly reduced, making the overall space occupation smaller and the effect better. Description of the Drawings

[0015] Figure 1 It is a partial structural schematic diagram of the existing diverter; Figure 2 is a partial sectional view of the present invention; Figure 3 is a schematic diagram of the partial structure of the present invention with the heat dissipation fins removed; Figure 4 is a partial exploded view of the one - to - eight plate type diverter of the present invention; Figure 5 is Figure 4 a schematic diagram of the partial structure of the main vertical channel plate of; Figure 6 is a schematic diagram of the simple principle of the one - to - three equal - division structure of the present invention; Figure 7 is a schematic diagram of the simple principle of the one - to - five equal - division structure of the present invention; Figure 8 is a schematic diagram of the simple principle of the one - to - six equal - division structure of the present invention; Figure 9 is a schematic diagram of the simple principle of the one - to - seven equal - division structure of the present invention; Figure 10 is a schematic diagram of the simple principle of the one - to - four equal - division structure of the present invention; Figure 11 is a schematic diagram of the simple principle of the one - to - eight equal - division structure of the present invention; Figure 12 is a partial exploded view of the plate - type liquid returner; Figure 13 is a schematic diagram of the partial structure at the annular part of the present invention; Figure 14 is a schematic diagram of the equal - division principle of the present invention; Figure 15 is Figure 3 a partial structure diagram of with an angle change. Detailed implementation manners

[0016] Example, as shown in Figures 2 to 15 A plate - type diverter heat exchanger includes multiple heat exchange tubes 300, and multiple heat dissipation fins 301 are fixed on all the heat exchange tubes 300. All the heat exchange tubes 300 are arranged in at least two columns (in this embodiment, there are two columns of heat exchange tubes 300). The feed ends of all the heat exchange tubes 300 in the same column are connected to the discharge port of the plate - type diverter 20 on their corresponding sides, the discharge ends of all the heat exchange tubes 300 in the other column are connected to the return port of the plate - type diverter 20, the discharge ends of all the heat exchange tubes 300 in the same column are connected to the feed port of the plate - type liquid returner 30 on their corresponding sides, and the feed ends of all the heat exchange tubes 300 in the other column are connected to the discharge port of the plate - type liquid returner 30 on the corresponding side.

[0017] The plate-type liquid returner 30 includes a front fixing plate 31 of the liquid returner, a rear fixing plate 32 of the liquid returner, and a central fixing plate 33 of the liquid returner. The front fixing plate 31 of the liquid returner is welded and fixed on the front wall surface of the central fixing plate 33 of the liquid returner and covers the front wall surface of the central fixing plate 33 of the liquid returner. The rear fixing plate 32 of the liquid returner is welded and fixed on the rear wall surface of the central fixing plate 33 of the liquid returner, and the rear fixing plate 32 of the liquid returner covers the rear wall surface of the central fixing plate 33 of the liquid returner. A plurality of waist-shaped through grooves 331 are formed on the central fixing plate 33 of the liquid returner. A plurality of liquid inlet connection through holes 311 and a plurality of liquid outlet connection through holes 312 are formed on the front fixing plate 31 of the liquid returner. Each waist-shaped through groove 331 communicates with a corresponding liquid inlet connection through hole 311 and a corresponding liquid outlet connection through hole 312. A sleeve portion extending backward is formed at the inner side wall of the liquid inlet connection through hole 311 and the liquid outlet connection through hole 312 on the front fixing plate 31 of the liquid returner. The sleeve portion is located in the corresponding waist-shaped through groove 331. The rear end of the corresponding heat exchange tube 300 is clamped on the inner side wall of the corresponding sleeve portion and welded and fixed.

[0018] With this structure, the corresponding two heat exchange tubes 300 are connected through the waist-shaped through grooves 331, and the U-shaped bend pipe structure is omitted, greatly improving the installation and manufacturing efficiency. It is convenient to process. Moreover, the plate-type liquid returner 30 is composed of the front fixing plate 31 of the liquid returner, the rear fixing plate 32 of the liquid returner, and the central fixing plate 33 of the liquid returner by welding. Its plate-type structure has a small thickness and small space occupation.

[0019] Furthermore, the plate-type diverter 20 includes a main vertical channel plate 10. A diverter front fixing plate 21 is fixed on the front end surface of the main vertical channel plate 10, and the diverter front fixing plate 21 covers the front end surface of the main vertical channel plate 10. A diverter rear connection fixing plate 22 is installed on the rear wall surface of the main vertical channel plate 10. A total feed through hole 211 is formed in the middle of the diverter front fixing plate 21. The total feed through hole 211 communicates with and corresponds to the feed port of the total feed channel 1 of the main vertical channel plate 10. The discharge end of the main vertical channel plate 10 communicates with and corresponds to the corresponding front discharge connection through hole 23 formed on the diverter rear connection fixing plate 22. The feed end of the front portion of the corresponding heat exchange tube 300 communicates with the corresponding front discharge connection through hole 23. The discharge end of the front portion of the corresponding heat exchange tube 300 communicates with the total discharge through groove 11 formed on the corresponding main vertical channel plate 10. The total discharge through groove 11 communicates with and corresponds to the total discharge through hole 24 formed on the diverter front fixing plate 21.

[0020] Furthermore, a feed pipe connection head 28 and a discharge pipe connection head 29 are welded and fixed on the front wall surface of the diverter front fixing plate 21. The feed pipe connection head 28 communicates with and corresponds to the total feed through hole 211. The discharge pipe connection head 29 communicates with and corresponds to the total discharge through hole 24. A first rear connection end plate 40 is fixedly welded to the rear wall surface of the main vertical channel plate 10. The front wall surface of the first rear connection end plate 40 covers the rear wall surface of the main vertical channel plate 10. A plurality of vertically arranged connection through holes are formed in the first rear connection end plate 40. The connection through holes communicate with and correspond to the corresponding discharge ends of the main vertical channel plate 10. A first vertical through groove 41 is formed in the first rear connection end plate 40. The first vertical through groove 41 corresponds to and communicates with the total discharge through groove 11 formed in the main vertical channel plate 10. A second connection plate 50 is fixedly welded to the rear end surface of the first rear connection end plate 40. The front end surface of the second connection plate 50 covers the rear end surface of the first rear connection end plate 40. A plurality of vertically arranged second connection through holes are formed in the second connection plate 50. The second connection through holes communicate with and correspond to the corresponding connection through holes. A second vertical through groove 51 is formed in the second connection plate 50. The second vertical through groove 51 corresponds to and communicates with the first vertical through groove 41. A diverter rear connection fixing plate 22 is fixedly welded to the rear end surface of the second connection plate 50. The front end surface of the diverter rear connection fixing plate 22 covers the rear end surface of the second connection plate 50. A plurality of front discharge connection through holes 23 and a plurality of front return connection through holes 26 are formed in the diverter rear connection fixing plate 22. Sleeve portions extending forward are formed on the inner side walls of the front discharge connection through holes 23 and the front return connection through holes 26. The sleeve portion of the front discharge connection through hole 23 is inserted into the corresponding second connection through hole formed in the second connection plate 50 and communicates therewith. The sleeve portion of the front return connection through hole 26 is inserted into the second vertical through groove 51 formed in the second connection plate 50 and communicates therewith.

[0021] In the above structure, the plate type diverter 20 is composed of a plurality of block plates fixedly welded together to achieve the diversion effect. Similarly, it has a small volume, occupies little space, has a compact structure and a high integration degree, greatly improving the diversion effect and uniformity.

[0022] Furthermore, annular grooves are formed on the inner sides of the rear ends of the sleeve portions of the front discharge connection through holes 23 and the plurality of front return connection through holes 26 of the diverter rear connection fixing plate 22. The front ends of the corresponding heat exchange tubes 300 are inserted into the sleeve portions of the front discharge connection through holes 23 or the front return connection through holes 26. The outer side wall of the front end of the heat exchange tube 300 is pressed against the inner side wall of the corresponding sleeve portion and fixedly welded. A radially extending annular portion 301 is formed on the outer side wall of the front portion of the heat exchange tube 300. The annular portion 301 is inserted into the corresponding annular groove. The end surface of the annular portion 301 is closely attached to the inner end surface of the corresponding annular groove. The outer side wall of the annular portion 301 is closely attached to the inner side wall of the annular groove. The outer side wall of the annular portion 301 is fixedly welded to the inner side wall of the annular groove.

[0023] In the above structure, through the connection and cooperation between the annular portion 301 of the heat exchange tube 300 and the corresponding annular groove, it not only has a limiting effect on the connection of the heat exchange tube 300, but also improves the connection firmness and support effect between the heat exchange tube 300 and the connection fixing plate 22 when the heat exchange tube 300 extends into the flow divider, thus improving the connection effect.

[0024] Regarding the specific structure of the flow diversion in the main vertical channel plate 10, it includes the total feed channel 1 of the main vertical channel plate 10; The outlet of the total feed channel 1 is connected to the middle (the exact center in this embodiment) of the first vertical channel 2 formed on the main vertical channel plate 10. One end of the first vertical channel 2 is connected to one end of the first horizontal channel 3 formed on the main vertical channel plate 10, and the other end of the first vertical channel 2 is connected to one end of the second horizontal channel 4 formed on the main vertical channel plate 10; The other end of the first horizontal channel 3 is connected to the first channel group 100 formed on the main vertical channel plate 10, and the other end of the second horizontal channel 4 is connected to the second channel group 200 formed on the main vertical channel plate 10. The final discharge ends of the first channel group 100 are even in number, the first horizontal channel 3 is a horizontal straight channel, the final discharge ends of the second channel group 200 are odd numbers other than 1, the second horizontal channel 4 is an inclined channel, and the total feed channel 1 is an inclined channel; Or the final discharge ends of the first channel group 100 are odd numbers other than 1, the first horizontal channel 4 is an inclined channel, the final discharge ends of the second channel group 200 are odd numbers other than 1, the second horizontal channel 4 is an inclined channel, the number of the final discharge ends of the second channel group 200 is the same as that of the first channel group 100, and the total feed channel 1 is a horizontal straight channel; Or the other end of the first horizontal channel 3 is connected to the first channel group 100, the final discharge ends of the first channel group 100 are two, the other end of the second horizontal channel 4 is the discharge end, the first horizontal channel 3 is a horizontal straight channel, and the total feed channel 1 is an inclined channel; Or the final discharge ends of the first channel group 100 are even in number, the first horizontal channel 3 is a horizontal straight channel, the final discharge ends of the second channel group 200 are even in number, the second horizontal channel 4 is a horizontal straight channel, the number of the final discharge ends of the second channel group 200 is the same as that of the first channel group 100, and the total feed channel 1 is a horizontal straight channel.

[0025] Among the number of discharge ends of the first channel group 100 and the number of discharge ends of the second channel group 200, the smaller one is q1 and the larger one is q2; the included angle formula between the total feed channel 1 and the first vertical channel 2 is: .

[0026] The specific principle is asFigure 14 As shown: A flow rate of q 0， The fluid with a velocity of u0 is incident on the plane at an angle of θ. The mass flow rates q1 and q2 of the two fluids should satisfy the following relationship with θ: Excluding the influence of some other minor factors, it can basically be set as three-stream fluid , ignoring gravity, the Bernoulli equation gives: , it can be deduced that ; Conservation of horizontal momentum: The simultaneous equations yield: The above formula is an ideal formula. In a specific embodiment, it still has certain deviations due to the influence of channel length, diameter and connection position.

[0027] like Figure 6 As shown, the first channel group 100 has two final discharge ends, the other end of the second transverse channel 4 is the discharge end, and the first transverse channel 3 is a horizontal straight channel. When the first channel group 100 has two final discharge ends, it includes a second vertical channel 101, the upper end and the lower end of the second vertical channel 101 are the discharge ends, and one end of the first transverse channel 3 is connected to the middle (center) of the second vertical channel 101.

[0028] At this time, q 1： q2 is 1:2, that is, the angle between the total feed channel 1 and the first vertical channel 2 is 70°, a=70° in the figure, and during manufacturing, according to the actual interface size of the channel, and the position where the total feed channel 1 is connected to the first vertical channel 2 is biased, such as when the position where the total feed channel 1 is connected to the first vertical channel 2 makes the first vertical channel 2 divided into two channels of different lengths, the angle will also be different. It can be changed according to the actual manufacturing, so it can take a numerical value 40° to 100° (that is, any value within 40° to 100° can basically achieve the required equal distribution effect. Of course, the connection positions in this embodiment are all centered connections, and 70° is adopted here, which is the most ideal situation), that is, in the figure, a = 40° to 100°. At this time, the second vertical channel 101 is perpendicular to the first horizontal channel 3, that is, c = 90°. Actually, according to the connection position and the diameter length of the channel, etc., there can be a range of ±30°, that is, 60° to 120°. Similarly, the second horizontal channel 4 is perpendicular to the first vertical channel 2, that is, b = 60° to 120°. Its ±30° deviation is affected by other factors such as the actual connection position and the diameter length of the channel. The principle is the same as that of the above-mentioned angle a and will not be elaborated here. Here, actually a = 70°, b = 90°, c = 90°. When the value is not 90°, the channels are not in a perpendicular state.

[0029] As Figure 10 shown, the final discharge ends of the first channel group 100 are two. The other end of the second horizontal channel 4 is the discharge end, and the first horizontal channel 3 is a horizontal straight channel. When the final discharge ends of the first channel group 100 are two, it includes the second vertical channel 101. The upper and lower ends of the second vertical channel 101 are the discharge ends, and one end of the first horizontal channel 3 is connected to the middle of the second vertical channel 101. When the final discharge ends of the second channel group 200 are two, it includes the second vertical channel 101. The two ends of the second vertical channel 101 are the discharge ends, and one end of the second horizontal channel 4 is connected to the middle of the second vertical channel 101; At this time, q 1： q2 is 1:1, that is, the included angle between the total feed channel 1 and the first vertical channel 2 is 90°. During manufacturing, take 60° to 120°, that is, a = 60° to 120° in the figure. At this time, the second vertical channel 101 is perpendicular to the first horizontal channel 3, and the included angle is 90°. Take c = 60° to 120°. Similarly, the second horizontal channel 4 is perpendicular to the corresponding second vertical channel 101, and the included angle is 90°. Take b = 60° to 120°. The second vertical channel 101 is parallel to the first vertical channel 2.

[0030] Its ±30° deviation is affected by other factors such as the actual connection position and the diameter length of the channel, which will not be elaborated here. Here, actually a = 90°, b = 90°, c = 90°. When the value is not 90°, the channels are not in a perpendicular state.

[0031] As Figure 7 shown, the final discharge ends of its first channel group 100 are 2, and the final discharge ends of the second channel group 200 are 3.

[0032] At this time, the final discharge ends of the second channel group 200 are odd numbers other than 1. It includes a second vertical channel 101. One end of the second vertical channel 101 is connected to one end of a third horizontal channel 102. The other end of the third horizontal channel 102 is connected to the middle of a third vertical channel 103. Both ends of the third vertical channel 103 are discharge ends, and the other end of the second vertical channel 101 is a discharge end. At this time, one end of the second horizontal channel 4 is connected to the middle of the corresponding second vertical channel 101. The second horizontal channel 4 is an inclined channel, and the remaining horizontal channels and vertical channels are perpendicular to each other; The first channel group 100 has two discharge ends with the same structure as the foregoing, which will not be elaborated here.

[0033] Its q 1： When q2 is 2:3, 78° can be obtained. During manufacturing, the value is taken as 48° to 108°, that is, in the figure, a = 48° to 108° (78° is adopted in this embodiment), indicating that the included angle between the total feed channel 1 of the inclined channel and the first vertical channel 2 is 48° to 108°; the final discharge ends of the first channel group 100 are 2. Therefore, the q at the first channel group 100 is such that q2 is 1:1. The included angle c between the corresponding first horizontal channel 3 and the corresponding second vertical channel 101 is 90°. The value of c is taken as 60° to 120°. The final discharge ends of the second channel group 200 are 3. Therefore, the q 1： at the second channel group 200 is such that q2 is 1:2, and 70° can be obtained. During manufacturing, the value 1： is taken as 40° to 100°, that is, in the figure, b = 40° to 100°, that is, the included angle between the corresponding second vertical channel 101 and the second horizontal channel 4 as the inclined channel is 40° to 100°. is taken as 40° to 100°, that is, in the figure, b = 40° to 100°, that is, the included angle between the corresponding second vertical channel 101 and the second horizontal channel 4 as the inclined channel is 40° to 100°. The deviation of ±30° is affected by other factors such as the actual connection position and the diameter length of the channel, which will not be elaborated here. The actual values here are a = 78°, b = 70°, and c = 90°. When the value is not 90°, the channels are not in a perpendicular state.

[0034] The deviation of ±30° is affected by other factors such as the actual connection position and the diameter length of the channel, which will not be elaborated here. The actual values here are a = 78°, b = 70°, and c = 90°. When the value is not 90°, the channels are not in a perpendicular state.

[0035] Such as Figure 8As shown, the final discharge ends of the first channel group 100 and the second channel group 200 are odd numbers other than 1, and the quantities are the same, and their distributions are the same. They all include a second vertical channel 101. One end of the second vertical channel 101 is connected to one end of a third horizontal channel 102, and the other end of the third horizontal channel 102 is connected to the middle of a third vertical channel 103. The two ends of the third vertical channel 103 are discharge ends, and the other end of the second vertical channel 101 is a discharge end (the other end of the second vertical channel 101 needs to have an extension channel, and the end of the extension channel is the discharge end). At this time, one end of the first horizontal channel 3 and the second horizontal channel 4 are respectively connected to the middle of the corresponding second vertical channel 101. The first horizontal channel 3 and the second horizontal channel 4 are inclined channels, and the remaining horizontal channels and vertical channels are perpendicular to each other; The final discharge ends of its first channel group 100 are 3, and the final discharge ends of the second channel group 200 are 3, and its q 1： q2 is 1:1, and it can be obtained that 90°, indicating that the angle between the total feed channel 1 and the first vertical channel 2 is 90° and is perpendicular, that is, in the figure, a = 90°, and actually a = 60° to 120°; and the final discharge ends of the first channel group 100 and the second channel group 200 are 3. Therefore, the q 1： q2 at the first channel group 100 and the second channel group 200 is 1:2, and the angle between the corresponding first horizontal channel 3 and the corresponding second vertical channel 101 is 70°, that is, c = 70° in the figure. When manufacturing, the value is taken as 40° to 100°, that is, c = 40° to 100° in the figure. Similarly, b = 40° to 100° at the second channel group 200.

[0036] Subsequently, it can be continuously expanded in the same way as the above structure according to needs, which will not be elaborated here.

[0037] Its deviation of ±30° is affected by other factors such as the actual connection position and the diameter length of the channel, which will not be elaborated here. And the actual values taken here are a = 90°, b = 70°, c = 70°. When the value is not 90°, the channels are not in a perpendicular state.

[0038] Such as Figure 9 shown, the final discharge ends of its first channel group 100 are 4, and the final discharge ends of the second channel group 200 are 3. The difference from Figure 3 is that the final discharge ends of the first channel group 100 are 4. Therefore, its q 1： q2 is 3:4, and it can be obtained that 82°, and when manufacturing, the value is taken as 52° to 112°, that is, a = 52° to 112° in the figure, and the final discharge ends of the first channel group 100 are 4, which conform to the number of discharge ends of 2 to the power of n. The q at the first channel group 100 1： The ratio of q2 is 1:1. The included angle c between the corresponding first horizontal channel 3 and the corresponding second vertical channel 101 is 60° to 120°. The final discharge ends of the second channel group 200 are 3, which are the same as the above 5 discharge ends, and b = 40° to 100°.

[0039] Its deviation of ±30° is affected by other factors such as the actual connection position and the diameter length of the channel, which will not be elaborated here. The actual values here are a = 82°, b = 70°, and c = 90°. When the value is not 90°, the channels are not in a vertical state.

[0040] Such as Figure 4 and Figure 11 shown, the final discharge ends of the first channel group 100 are 4, and the final discharge ends of the second channel group 200 are 4.

[0041] When the final discharge ends of the first channel group 100 are an even number other than 2, it includes the second vertical channel 101. One end of the first horizontal channel 3 is connected to the middle of the second vertical channel 101. The two ends of the second vertical channel 101 are respectively connected to one end of the corresponding two third horizontal channels 102. The other ends of the two third horizontal channels 102 are connected to the middle of the corresponding two third vertical channels 103. The two ends of the third vertical channel 103 are the discharge ends or the two ends of the third vertical channel 103 are further connected to the corresponding fourth horizontal channels, and the discharge ends of 2 to the power of N are formed in this way in turn. All the horizontal channels are horizontal straight channels and are perpendicular to all the vertical channels; When the final discharge ends of the second channel group 200 are an even number other than 2, its structure is the same as that when the final discharge ends of the first channel group 100 are an even number. One end of the second horizontal channel 4 is connected to the middle of the corresponding second vertical channel 101.

[0042] At this time, all the vertical channels and horizontal channels are perpendicular, that is, a = b = c = 90°. Affected by other factors such as the actual connection position and the diameter length of the channel, it can take a = 60° to 120°, b = 60° to 120°, and c = 60° to 120°.

[0043] The above settings can ensure that the materials entering from the total feed channel 1 can flow out evenly from all the discharge ends, that is, ensure the uniformity of the flowing materials.

[0044] And it can continue to expand the diversion according to the above method, such as the diversion methods of one into nine, one into ten, etc., which will not be elaborated here.

[0045] In this embodiment, due to the use of step-by-step equal division, the total feed channel 1 is divided step by step, resulting in a good equal division effect and ensuring that the flow rates of the materials coming out from the liquid outlet end are basically equal.

[0046] The central axes of all the discharge ends in this embodiment are on the same vertical line.

[0047] Moreover, according to this embodiment shown in the drawings, it is a plate connection method with a very small thickness, so that its space occupation is very small, greatly reducing the volume of the heat exchanger in which it is installed and reducing the space occupation.

[0048] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A plate-type split flow heat exchanger, comprising a plurality of heat exchange tubes (300), a plurality of heat dissipation fins (301) fixed on all the heat exchange tubes (300), characterized in that: All heat exchange tubes (300) are arranged in at least two rows, the feed ends of all heat exchange tubes (300) in the same row are connected to the discharge port of the plate-type flow divider (20) on the corresponding side, the discharge ends of all heat exchange tubes (300) in another row are connected to the return port of the plate-type flow divider (20), the discharge ends of all heat exchange tubes (300) in the same row are connected to the feed port of the plate-type liquid return device (30) on the corresponding side, and the feed ends of all heat exchange tubes (300) in another row are connected to the discharge port of the plate-type liquid return device (30) on the corresponding side.

2. A plate-type split flow heat exchanger according to claim 1, characterized in that: The plate-type liquid return device (30) comprises a front fixing plate (31) of the liquid return device, a rear fixing plate (32) of the liquid return device and a central fixing plate (33) of the liquid return device. The front fixing plate (31) of the liquid return device is fixed to the front wall surface of the central fixing plate (33) of the liquid return device and covers the front wall surface of the central fixing plate (33) of the liquid return device. The rear fixing plate (32) of the liquid return device is fixed to the rear wall surface of the central fixing plate (33) of the liquid return device. The rear fixing plate (32) of the liquid return device covers the rear wall surface of the central fixing plate (33) of the liquid return device. A plurality of waist-shaped through grooves (331) are formed on the heat exchange tube (300), a plurality of liquid inlet connection through holes (311) and a plurality of liquid outlet connection through holes (312) are formed on the front fixing plate (31) of the liquid return device, each waist-shaped through groove (331) is in communication with a corresponding liquid inlet connection through hole (311) and a corresponding liquid outlet connection through hole (312), a discharge end at the rear of a corresponding heat exchange tube (300) is in communication with a corresponding liquid inlet connection through hole (311), and a feed end at the rear of a corresponding heat exchange tube (300) is in communication with a corresponding liquid outlet connection through hole (312).

3. A plate-type split flow heat exchanger according to claim 1, characterized in that: The plate-type flow splitter (20) comprises a main vertical channel plate (10), a flow splitter front fixing plate (21) is fixed on the front end surface of the main vertical channel plate (10), the flow splitter front fixing plate (21) covers the front end surface of the main vertical channel plate (10), a flow splitter rear connecting fixing plate (22) is installed on the rear wall surface of the main vertical channel plate (10), a total feed through hole (211) is formed in the middle of the flow splitter front fixing plate (21), and the total feed through hole (211) is communicated with the feed port of the total feed channel (1) of the main vertical channel plate (10) and Correspondingly, the discharge end of the main vertical channel plate (10) is in communication with and corresponds to the corresponding front discharge connection through hole (23) formed on the rear connection fixing plate (22) of the diverter, the front feed end of the corresponding heat exchange tube (300) is in communication with the corresponding front discharge connection through hole (23), the front discharge end of the corresponding heat exchange tube (300) is in communication with the main discharge through groove (11) formed on the corresponding main vertical channel plate (10), and the main discharge through groove (11) is in communication with and corresponds to the main discharge through hole (24) formed on the front fixing plate (21) of the diverter.

4. A plate-type split flow heat exchanger according to claim 3, characterized in that: The discharge port of the main feed channel (1) is connected to the middle of a first vertical channel (2) formed on the main vertical channel plate (10), one end of the first vertical channel (2) is connected to one end of a first transverse channel (3) formed on the main vertical channel plate (10), and the other end of the first vertical channel (2) is connected to one end of a second transverse channel (4) formed on the main vertical channel plate (10); The other end of the first transverse channel (3) is connected to a first channel group (100) formed on the main vertical channel plate (10), the other end of the second transverse channel (4) is connected to a second channel group (200) formed on the main vertical channel plate (10), the final discharge end of the first channel group (100) is an even number, the first transverse channel (3) is a horizontal straight channel, the final discharge end of the second channel group (200) is an odd number other than 1, the second transverse channel (4) is an oblique channel, and the total feed channel (1) is an oblique channel; Or the final discharge end of the first channel group (100) is an odd number other than 1, the first transverse channel (4) is an oblique channel, the final discharge end of the second channel group (200) is an odd number other than 1, the second transverse channel (4) is an oblique channel, the number of the final discharge ends of the second channel group (200) is the same as the number of the final discharge ends of the first channel group (100), and the total feed channel (1) is a horizontal straight channel; Alternatively, the other end of the first transverse channel (3) is connected to the first channel group (100), the first channel group (100) has two final discharge ends, the other end of the second transverse channel (4) is the discharge end, the first transverse channel (3) is a horizontal straight channel, and the main feed channel (1) is an oblique channel; Alternatively, the final discharge ends of the first channel group (100) are an even number, the first transverse channel (3) is a horizontal straight channel, the final discharge ends of the second channel group (200) are an even number, the second transverse channel (4) is a horizontal straight channel, the number of final discharge ends of the second channel group (200) is the same as the number of final discharge ends of the first channel group (100), and the total feed channel (1) is a horizontal straight channel.

5. A plate-type split flow heat exchanger according to claim 4, characterized in that: The number of discharge ends of the first channel group (100) and the number of discharge ends of the second channel group (200) is smaller, q1, and the number of discharge ends of the second channel group (200) is larger, q2; the angle between the total feed channel (1) and the first vertical channel (2) is: .

6. A plate-type split flow heat exchanger according to claim 4, characterized in that: When the first channel group (100) has two final discharge ends, it comprises a second vertical channel (101), both ends of the second vertical channel (101) are discharge ends, and one end of the first transverse channel (3) is connected to the middle of the second vertical channel (101); When the second channel group (200) has two final discharge ends, it comprises a second vertical channel (101), both ends of the second vertical channel (101) are discharge ends, and one end of the second transverse channel (4) is connected to the middle of the second vertical channel (101); When the final discharge end of the first channel group (100) is an even number other than 2, it comprises a second vertical channel (101), one end of the first transverse channel (3) is connected to the middle of the second vertical channel (101), both ends of the second vertical channel (101) are respectively connected to one end of the third transverse channel (102), the other ends of the two third transverse channels (102) are connected to the middle of the corresponding two third vertical channels (103), both ends of the third vertical channels (103) are discharge ends or both ends of the third vertical channels (103) are connected to the corresponding fourth transverse channels, and discharge ends of 2 to the power of N are formed in this manner, and all the transverse channels are horizontal straight channels and are arranged perpendicular to all the vertical channels; When the final discharge end of the second channel group (200) is an even number other than 2, its structure is the same as when the final discharge end of the first channel group (100) is an even number, and one end of its second transverse channel (4) is connected to the middle of the corresponding second vertical channel (101).

7. A plate-type split flow heat exchanger according to claim 4, characterized in that: The final discharge ends of the first channel group (100) and the second channel group (200) are an odd number other than 1, and the number is the same and the distribution is the same. They both include a second vertical channel (101), one end of the second vertical channel (101) is connected to one end of the third transverse channel (102), the other end of the third transverse channel (102) is connected to the middle of the third vertical channel (103), both ends of the third vertical channel (103) are discharge ends, and the other end of the second vertical channel (101) is the discharge end. At this time, one end of the first transverse channel (3) and the second transverse channel (4) are respectively connected to the middle of the corresponding second vertical channel (101), the first transverse channel (3) and the second transverse channel (4) are oblique channels, and the remaining transverse channels and vertical channels are arranged vertically; One end of the discharge end is connected to a subsequent connecting pipeline, and in this way, more odd-numbered discharge ends other than 1 can be formed.

8. A plate-type split flow heat exchanger according to claim 2, characterized in that: A sleeve portion extending backwards is formed on the inner side walls of the liquid inlet connecting through hole (311) and the liquid outlet connecting through hole (312) on the front fixing plate (31) of the liquid return device. The sleeve portion is located in the corresponding waist-shaped through groove (331). The rear end of the corresponding heat exchange tube (300) is clamped on the inner side wall of the corresponding sleeve portion and fixed by welding.

9. A plate-type split flow heat exchanger according to claim 3, characterized in that: A feed pipe connector (28) and a discharge pipe connector (29) are welded and fixed on the front wall surface of the splitter front fixing plate (21); the feed pipe connector (28) is in communication with and corresponds to the main feed through hole (211), and the discharge pipe connector (29) is in communication with and corresponds to the main discharge through hole (24); A first rear connection end plate (40) is fixed on the rear wall surface of the main vertical channel plate (10), the front wall surface of the first rear connection end plate (40) covers the rear wall surface of the main vertical channel plate (10), a plurality of vertically arranged connection through holes are formed on the first rear connection end plate (40), the connection through holes are communicated with and correspond to the corresponding discharge ends of the main vertical channel plate (10), and a first vertical through groove (41) is formed on the first rear connection end plate (40), the first vertical through groove (41) corresponds to and communicates with the total discharge through groove (11) formed on the main vertical channel plate (10); A second connecting plate (50) is fixed to the rear end surface of the first rear connecting end plate (40), the front end surface of the second connecting plate (50) covers the rear end surface of the first rear connecting end plate (40), a plurality of second connecting through holes arranged vertically are formed on the second connecting plate (50), the second connecting through holes are in communication with and correspond to the corresponding connecting through holes, and a second vertical through groove (51) is formed on the second connecting plate (50), the second vertical through groove (51) corresponds to and is in communication with the first vertical through groove (41); A diverter rear connection fixing plate (22) is fixed on the rear end surface of the second connection plate (50), and the front end surface of the diverter rear connection fixing plate (22) covers the rear end surface of the second connection plate (50). A plurality of front discharge connection through holes (23) and a plurality of front return connection through holes (26) are formed on the diverter rear connection fixing plate (22), and a sleeve portion extending forward is formed on the inner side walls of the front discharge connection through holes (23) and the front return connection through holes (26). The sleeve portion of the front discharge connection through holes (23) is inserted into and communicated with the corresponding second connection through holes formed on the second connection plate (50), and the sleeve portion of the front return connection through holes (26) is inserted into and communicated with the second vertical through groove (51) formed on the second connection plate (50).

10. The plate-type split-flow heat exchanger according to claim 5, characterized in that: Get q 1： q2 is 1:1, 60° to 120°; take q 1： q2 is 1:2, 40° to 100°; take q 1： q2 is 2:3, 48° to 108°; q 1： q2 is 3:4, 52° to 112°.

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