Plate heat exchanger and liquid separator device

Abstract

The invention belongs to the technical field of automobile parts, and discloses a liquid separator device which comprises a plate heat exchanger, a segmentation part is arranged in the plate heat exchanger, a plurality of flow dividing parts are arranged on the segmentation part, a wall plate part is further arranged on the segmentation part, a channel part is formed in the plate heat exchanger, and a plurality of partition parts are arranged in the wall plate part. An inlet cross section is divided into three or more subareas, the subareas correspond to the same number of subsections in an inlet channel, for example, three subareas correspond to three subsections, and flow distribution of different subsections is adjusted by adjusting the proportion of the subareas of the inlet cross section. The first flow dividing holes, the second flow dividing holes and the third flow dividing holes are formed in the inner walls of the different sections, fluid guiding in the sections is completed by adjusting the positions of the holes, so that the influence of gravity is overcome, the total flow area of the holes is adjusted to be matched with the pressure drop passing through all refrigerant channel parts under the specific flow, and therefore the purpose of adjusting flow distribution is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and in particular relates to a plate heat exchanger and a liquid distributor device. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application, long service life, etc. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tube heat exchanger, and the footprint is one-third of that of tube heat exchanger. The heat recovery rate can be as high as more than 90%; However, for the refrigerant side of the plate heat exchanger, when the inlet channel is distributed in two phases, since the liquid has greater inertia than the gas and is more affected by gravity, the liquid refrigerant is more likely to rush into the bottom of the inlet channel and will flow more concentratedly in the direction of gravity. In addition, affected by the length of the flow channel, the pressure drop of the flow channel close to the inlet and outlet is lower, resulting in uneven distribution of the refrigerant and reducing the heat exchange efficiency of the plate heat exchanger. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a plate heat exchanger and a liquid separator device.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid separator device, including a plate heat exchanger, wherein a segmented portion is provided inside the plate heat exchanger, a multi-component flow dividing portion is provided on the segmented portion, a wall plate portion is also provided on the segmented portion, a channel portion is opened inside the plate heat exchanger, a multi-component partitioning portion is provided inside the wall plate portion, a flow hole portion is opened through the wall plate portion, and a panel portion is provided on the wall plate portion.

[0005] Preferably, the segmented portion is composed of segment one, segment two, and segment three, and the segment one, segment two, and segment three are fixedly connected to each other, and the outer walls of segment one, segment two, and segment three are fixedly connected to the inner wall of one side of the plate heat exchanger.

[0006] Preferably, the wall panel portion is composed of a middle wall surface, an inner wall surface, and an outer wall surface fixedly connected to the inner walls of segment one, segment two, and segment three.

[0007] Preferably, the middle wall surface, the inner wall surface and the outer wall surface are partially fixedly connected to each other, and the middle wall surface and the inner wall surface are respectively fixedly connected with a partition plate 1 and a partition plate 2, and the partition plate 1 and the partition plate 2 are partially fixedly connected to each other.

[0008] Preferably, the flow splitter portion is composed of a first flow splitter, a second flow splitter, and a third flow splitter which are opened through the interior of the plate heat exchanger.

[0009] Preferably, the channel portion is composed of a first channel, a second channel, and a third channel which are opened through the inside of the plate heat exchanger, and the first channel, the second channel, the third channel and the first branch flow, the second branch flow, and the third branch flow are connected.

[0010] Preferably, the flow hole portion is composed of a first flow diversion hole, a second flow diversion hole, and a third flow diversion hole which are correspondingly opened through the inner and outer walls of the segment one, the segment two, and the segment three.

[0011] Preferably, the panel portion is composed of a first side surface, a second side surface, a third side surface and a first bottom surface which are respectively fixedly connected to the inner and outer walls of the segment one, the segment two and the segment three.

[0012] Preferably, the inner wall surface and the outer wall surface are also fixedly connected to a fourth bottom surface and a second bottom surface.

[0013] A plate heat exchanger, using a liquid separator device as described in any one of rights 1-9.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention divides the inlet cross section into three or more partitions, which correspond to the same number of segments in the inlet channel, for example, three partitions correspond to three segments, and adjusts the flow distribution of different segments by adjusting the ratio of the inlet cross section partitions. The first diversion hole, the second diversion hole, and the third diversion hole are arranged on the inner walls of different segments, and the positions of the holes are adjusted to guide the fluid in the segments, so as to overcome the influence of gravity, adjust the total flow area of ​​the holes, and match the pressure drop through each refrigerant channel under a specific flow rate, thereby achieving the purpose of adjusting the flow distribution. The present invention is suitable for applications in different scenarios through the annular partition divider, and the number of partitions of the divider can be flexibly adjusted. The flow hole parts independently set in each partition can achieve the best match through quantity, size and position. The annular partition divider can adjust the relative position of the annular partition, and an eccentric annular partition is designed, which can overcome the uneven inlet distribution factor caused by gravity and improve the overall flow uniformity of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local distribution structure of the internal flow of the split orifice plate heat exchanger of the present invention; Figure 3 It is a schematic diagram of the overall structure of the three-section liquid distributor with an outer contour central distributed annular partition according to the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of a three-section liquid distributor with an outer contour central distributed annular partition according to the present invention; Figure 5 It is a partial structural schematic diagram of a three-section liquid distributor with an outer contour central distributed annular partition according to the present invention; Figure 6 It is a schematic diagram of the overall structure of the three-section liquid distributor with an eccentric distributed annular partition with an outer contour according to the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the three-section liquid distributor with an eccentric distributed annular partition with an outer contour according to the present invention; Figure 8 It is a partial structural schematic diagram of a three-section liquid distributor with an eccentric distributed annular partition with an outer contour according to the present invention; Fig. 9 This is a schematic diagram of the overall structure of the fan-shaped three-section liquid distributor of the present invention; Fig.10 This is a schematic diagram of the cross-sectional structure of the fan-shaped three-section liquid distributor of the present invention; Fig.11 It is a schematic diagram of the partial structure of the three-section sector-divided liquid distributor of the present invention; Fig.12 It is a schematic diagram of the overall structure of the three-section liquid distributor without an outer contour and a centrally distributed annular partition according to the present invention.

[0016] In the figure: 1. Section 1; 11. Section 1; 12. Section 2; 13. Section 3; 2. Dividing part; 21. First diverting part; 22. Second diverting part; 23. Third diverting part; 3. wall panel; 31. middle wall; 32. inner wall; 33. outer wall; 311. partition 1; 321. partition 2; 4. channel portion; 41. first channel; 42. second channel; 43. third channel; 5. Division 1; 51. Division 1; 52. Division 2; 53. Division 3; 6. flow hole portion; 61. first flow diversion hole; 62. second flow diversion hole; 63. third flow diversion hole; 7. panel portion; 711. first side surface; 712. second side surface; 713. third side surface; 714. first bottom surface; 721. fourth bottom surface; 722. second bottom surface; 8. Plate heat exchanger. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 12 As shown, the present invention provides a liquid separator device, including a plate heat exchanger 8, a segmented portion 1 is provided in the plate heat exchanger 8, a multi-component flow dividing portion 2 is provided on the segmented portion 1, a wall plate portion 3 is also provided on the segmented portion 1, a channel portion 4 is opened in the plate heat exchanger 8, a multi-component partitioning portion 5 is provided in the wall plate portion 3, a flow hole portion 6 is opened through the wall plate portion 3, and a panel portion 7 is provided on the wall plate portion 3.

[0019] Using the above solution: The segmented portion 1 is composed of segment one 11, segment two 12, and segment three 13, which are fixedly connected to each other, and the outer walls of segment one 11, segment two 12, and segment three 13 are through-connected and fixedly connected to the inner wall of one side of the plate heat exchanger 8. The wall plate portion 3 is composed of an intermediate wall surface 31, an inner wall surface 32, and an outer wall surface 33 fixedly connected to the inner walls of segment one 11, segment two 12, and segment three 13, and the intermediate wall surface 31, the inner wall surface 32, and the outer wall surface 33 are partially fixedly connected to each other. The intermediate wall surface 31 and the inner wall surface 32 are respectively fixedly connected with partition one 311, partition two 321, and partition one 311, partition two 321 are partially fixedly connected to each other.

[0020] The above scheme is adopted: by dividing the inlet cross-section into 3 or more partitions, which correspond to the same number of segments in the inlet channel, for example, 3 partitions correspond to 3 segments, and adjusting the flow distribution of different segments by adjusting the ratio of the inlet cross-section partitions.

[0021] The flow divider 2 is composed of a first flow divider 21, a second flow divider 22, and a third flow divider 23 that are opened through the plate heat exchanger 8. The channel portion 4 is composed of a first channel 41, a second channel 42, and a third channel 43 that are opened through the plate heat exchanger 8. The first channel 41, the second channel 42, and the third channel 43 are connected to the first flow divider 21, the second flow divider 22, and the third flow divider 23.

[0022] The above scheme is adopted: by setting the first diversion hole 61, the second diversion hole 62, and the third diversion hole 63 on the inner walls of different segments, the fluid guidance in the segment is completed by adjusting the position of the holes to overcome the influence of gravity, and the total flow area of ​​the holes is adjusted to match the pressure drop through each refrigerant channel part 4 under a specific flow rate, thereby achieving the purpose of adjusting the flow distribution.

[0023] The flow hole portion 6 is composed of a first diversion hole 61, a second diversion hole 62, and a third diversion hole 63 which are correspondingly opened on the inner and outer walls of segment one 11, segment two 12, and segment three 13. The panel portion 7 is composed of a first side surface 711, a second side surface 712, a third side surface 713, and a first bottom surface 714 which are respectively fixedly connected to the inner and outer walls of segment one 11, segment two 12, and segment three 13. A fourth bottom surface 721 and a second bottom surface 722 are also fixedly connected to the inner wall surface 32 and the outer wall surface 33.

[0024] The above scheme is adopted: the annular partition divider is suitable for applications in different scenarios, the number of partitions of the divider can be flexibly adjusted, and the flow hole part 6 independently set in each partition can achieve the best match through quantity, size and position. The annular partition divider can adjust the relative position of the annular partition, and an eccentric annular partition is designed, which can overcome the uneven inlet distribution factor caused by gravity and improve the overall flow uniformity of the heat exchanger.

[0025] A plate heat exchanger, using any one of the liquid separator devices as described in rights 1-9.

[0026] The working principle and use process of the present invention: The inlet cross section is divided into 3 or more partitions, which correspond to the same number of segments in the inlet channel, for example, 3 partitions correspond to 3 segments. The flow distribution of different segments is adjusted by adjusting the ratio of the inlet cross section partitions. The first diversion hole 61, the second diversion hole 62, and the third diversion hole 63 are set on the inner walls of different segments, and the fluid guidance in the segment is completed by adjusting the position of the hole to overcome the influence of gravity. The total flow area of ​​the hole is adjusted to match the pressure drop through each refrigerant channel part 4 at a specific flow rate, so as to achieve the purpose of adjusting the flow distribution. The annular partition divider is suitable for application in different scenarios, and the number of partitions of the divider can be flexibly adjusted. The flow hole part 6 independently set in each partition can achieve the best match through the number, size and position. The annular partition divider can adjust the relative position of the annular partition, wherein an eccentric annular partition is designed, which can overcome the uneven inlet distribution factor caused by gravity and improve the overall flow uniformity of the heat exchanger.

[0027] It should be noted that: the inlet cross section is divided into N partitions, N ≥ 2, and the N partitions can be distributed in an annular shape or in a sector shape. If the inlet cross section of the dispenser is distributed in an annular shape, the annular partitions can be set to be centrally distributed or eccentrically distributed. Embodiment 1

[0028] The inlet cross section is a central distributed annular partition. When N=3, the first branch flow 21 of the first fluid flows through the partition one 51 into the segment one 11, and then enters the first channel 41 of the plate heat exchanger 8 from the first branch hole 61 as a "jet flow". The second branch flow 22 of the first fluid flows through the partition two 52 into the segment two 12, and then enters the second channel 42 of the plate heat exchanger 8 from the second branch hole 62 as a "jet flow". The third branch flow 23 of the first fluid flows through the partition three into the segment three 13, and then enters the third channel 43 of the plate heat exchanger 8 from the third branch hole 63 as a "jet flow"; wherein the first branch hole 61 is arranged on the first side 711, the second side 712 and the third side 713, the number of holes is 9-30, and the hole diameter is 1-2mm, the second branch hole 62 is consistent with the first branch hole 61, and the third branch hole 63 has 3-6 holes with a diameter of 1-2mm in addition to the holes consistent with the first branch hole 61, and the third branch hole 63 has 3-6 holes with a diameter of 1-2mm on the first bottom surface 714. Embodiment 2

[0029] The inlet cross section is an eccentric distributed annular partition. When N=3, the first branch flow 21 of the first fluid flows into the segment one 11 through the partition one 51, and then enters the first channel 41 of the plate heat exchanger 8 from the first branch hole 61 as a "jet flow". The second branch flow 22 of the first fluid flows into the segment two 12 through the partition two 52, and then enters the second channel 42 of the plate heat exchanger 8 from the second branch hole 62 as a "jet flow". The third branch flow 23 of the first fluid flows into the segment three 13 through the partition three, and then enters the third channel 43 of the plate heat exchanger 8 from the third branch hole 63 as a "jet flow"; wherein, the first branch hole 61 is arranged on the first side 711, the second side 712 and the third side 713, the number of holes is 9-30, and the hole diameter is 1-2mm, the second branch hole 62 is consistent with the first branch hole 61, and the third branch hole 63 has 3-6 holes with a diameter of 1-2mm in addition to the holes consistent with the first branch hole 61, and the third branch hole 63 has 3-6 holes with a diameter of 1-2mm on the first bottom surface 714. Embodiment 3

[0030] The inlet cross section is a fan-shaped partition. When N=3, the first branch flow 21 of the first fluid flows into the segment one 11 through the partition one 51, and then enters the first channel 41 of the plate heat exchanger 8 from the first branch hole 61 as a "jet flow". The second branch flow 22 of the first fluid flows into the segment two 12 through the partition two 52, and then enters the second channel 42 of the plate heat exchanger 8 from the second branch hole 62 as a "jet flow". The third branch flow 23 of the first fluid flows into the segment three 13 through the partition three, and then enters the third channel 43 of the plate heat exchanger 8 from the third branch hole 63 as a "jet flow". Among them, the first branch hole 61 is a single row of small holes, the number of holes is 10-15, and the hole diameter is 1-2mm. The second branch hole 62 is consistent with the first branch hole 61. In addition to the holes consistent with the first branch hole 61, the third branch hole 63 has 3-6 holes with a diameter of 1-2mm at the bottom. Embodiment 4

[0031] The inlet cross section is a central distributed annular partition. When N=3, the first branch flow 21 of the first fluid passes through partition one 51 and flows into segment one 11, and then enters the first channel 41 of the plate heat exchanger 8 as an "annular flow". The second branch flow 22 of the first fluid passes through partition two 52 and flows into segment two 12, and then enters the second channel 42 of the plate heat exchanger 8 as an "annular flow". The third branch flow 23 of the first fluid passes through partition three 53 and flows into segment three 13, and then enters the third channel 43 of the plate heat exchanger 8 as an "annular flow". Embodiment 5

[0032] The inlet cross section is an eccentric distributed annular partition. When N=3, the first branch flow 21 of the first fluid flows through partition one 51 into segment one 11, and then enters the first channel 41 of the plate heat exchanger 8 as an "annular flow". The second branch flow 22 of the first fluid flows through partition two 52 into segment two 12, and then enters the second channel 42 of the plate heat exchanger 8 as an "annular flow". The third branch flow 23 of the first fluid flows through partition three 53 into segment three 13, and then enters the third channel 43 of the plate heat exchanger 8 as an "annular flow".

[0033] 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.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid separator device, comprising a plate heat exchanger (8), characterized in that: The plate heat exchanger (8) is provided with a segmented portion (1), a multi-component flow dividing portion (2) is provided on the segmented portion (1), a wall plate portion (3) is also provided on the segmented portion (1), a channel portion (4) is provided in the plate heat exchanger (8), a multi-component dividing portion (5) is provided in the wall plate portion (3), a flow hole portion (6) is provided through the wall plate portion (3), and a panel portion (7) is provided on the wall plate portion (3).

2. The liquid dispenser device according to claim 1, characterized in that: The segmented portion (1) is composed of segment one (11), segment two (12), and segment three (13); the segment one (11), segment two (12), and segment three (13) are fixedly connected to each other, and the outer walls of segment one (11), segment two (12), and segment three (13) are connected to the inner wall of one side of the plate heat exchanger (8) in a through-and-through fixed manner.

3. The liquid dispenser device according to claim 2, characterized in that: The wall panel portion (3) is composed of an intermediate wall surface (31), an inner wall surface (32), and an outer wall surface (33) which are fixedly connected to the inner walls of the first segment (11), the second segment (12), and the third segment (13).

4. The liquid dispenser device according to claim 3, characterized in that: The middle wall surface (31), the inner wall surface (32), and the outer wall surface (33) are partially fixedly connected to each other. The middle wall surface (31) and the inner wall surface (32) are respectively fixedly connected to a partition plate 1 (311) and a partition plate 2 (321). The partition plate 1 (311) and the partition plate 2 (321) are partially fixedly connected to each other.

5. The liquid dispenser device according to claim 4, characterized in that: The flow splitter (2) is composed of a first flow splitter (21), a second flow splitter (22), and a third flow splitter (23) which are opened through the interior of the plate heat exchanger (8).

6. The liquid dispenser device according to claim 5, characterized in that: The channel portion (4) is composed of a first channel (41), a second channel (42), and a third channel (43) which are opened through the interior of the plate heat exchanger (8); the first channel (41), the second channel (42), the third channel (43) and the first branch flow (21), the second branch flow (22), and the third branch flow (23) are connected.

7. The liquid dispenser device according to claim 6, characterized in that: The flow hole portion (6) is composed of a first flow diversion hole (61), a second flow diversion hole (62), and a third flow diversion hole (63) which are respectively opened through the inner and outer walls of the first segment (11), the second segment (12), and the third segment (13).

8. The liquid dispenser device according to claim 7, characterized in that: The panel portion (7) is composed of a first side surface (711), a second side surface (712), a third side surface (713), and a first bottom surface (714) which are respectively fixedly connected to the inner and outer walls of the segment one (11), the segment two (12), and the segment three (13).

9. The liquid dispenser device according to claim 8, characterized in that: The inner wall surface (32) and the outer wall surface (33) are also fixedly connected to a fourth bottom surface (721) and a second bottom surface (722).

10. A plate heat exchanger, characterized in that: The application is a liquid dispenser device as described in any one of rights 1-9.

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