CN215177073U - Heat exchanger - Google Patents

Abstract

The utility model discloses a heat exchanger, the heat exchanger includes the first pipe, the second pipe, heat exchange tube and baffle, first pipe of heat exchange tube intercommunication and second pipe, first pipe includes first chamber, the baffle is located first intracavity, the baffle includes first baffle and second baffle, first baffle includes first hole, first hole is along running through first baffle, the second baffle includes the second hole, the second hole runs through the second baffle, the first end of first baffle and the first end of second baffle lie in the same one side of first pipe axis on the radial direction of first pipe, the second end of first baffle and the second end of second baffle lie in the opposite side of first pipe axis on the radial direction of first pipe, the first end of first baffle is higher than the second end of first baffle in the direction of gravity, and/or the first end of second baffle is less than the second end of second baffle in the direction of gravity. The utility model discloses a heat exchanger makes the double-phase refrigerant mixture of gas-liquid more even, has improved the heat transfer performance of heat exchanger.

Description

Heat exchanger

Technical Field

The utility model relates to a heat transfer technical field specifically, relates to a heat exchanger.

Background

In the related technology, the heat exchanger exchanges heat with the external environment through the refrigerant, the heat exchange efficiency is further improved by arranging the partition plates in the collecting pipes to increase loops of the refrigerant, when the collecting pipes are vertically placed, after the gas-liquid two-phase refrigerant flows into the collecting pipes, the liquid refrigerant is easy to accumulate on the surfaces of the partition plates due to the action of gravity, so that the gas-liquid two-phase refrigerant in the collecting pipes cannot be fully mixed, and the heat exchange performance of the heat exchanger is reduced.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a heat exchanger is provided, this heat exchanger makes the refrigerant mixture more even, is favorable to improving the heat transfer performance of heat exchanger.

According to the utility model discloses heat exchanger includes: a first tube and a second tube; the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities; a partition plate located in the first chamber, the partition plate including a first partition plate and a second partition plate adjacently disposed in a length direction of the first tube, the first partition plate including a first hole penetrating the first partition plate in the length direction of the first tube, the second partition plate including a second hole penetrating the second partition plate in the length direction of the first tube, a longitudinal section of the first tube passing through the first tube axis being defined as a first plane, a cross section of the first partition plate in the first plane including a first end and a second end connected to the first tube, a cross section of the second partition plate in the first plane including a first end and a second end connected to the first tube, the heat exchanger operating as an evaporator in a state in which the first end of the first partition plate and the first end of the second partition plate are located in a radial direction of the first tube on a same level as the first tube axis A first end of the first baffle plate and a second end of the second baffle plate are located on the other side of the first tube axis in the radial direction of the first tube, the first end of the first baffle plate is gravitationally higher than the second end of the first baffle plate, and/or the first end of the second baffle plate is gravitationally lower than the second end of the second baffle plate.

According to the utility model discloses heat exchanger, this heat exchanger makes the refrigerant can be by even reposition of redundant personnel to each flat intraductal, has improved heat exchange efficiency.

In some embodiments, a projection of the first aperture of the first baffle and the second aperture of the second baffle onto a cross-section of the first tube is non-coincident.

In some embodiments, the separator has a thickness, the separator includes a first side surface and a second side surface arranged in a thickness direction of the separator, an included angle between at least a portion of the first side surface of the first separator and/or at least a portion of the second side surface of the first separator and a cross section of the first tube is α, an included angle between at least a portion of the first side surface of the second separator and/or at least a portion of the second side surface of the second separator and a cross section of the first tube is β, and the included angle α and/or the included angle β is less than 60 degrees.

In some embodiments, a projected width dimension W1 of the partition plate on the first tube cross section in a radial direction of the first tube is not less than an inner diameter D of the first tube.

In some embodiments, the first partition plate is further provided with a third hole, the first hole and the third hole are both provided at the first end of the first partition plate, and the third hole is lower than the first hole in the gravity direction, and/or the second partition plate is further provided with a fourth hole, the second hole and the fourth hole are both provided at the second end of the second partition plate, and the fourth hole is lower than the second hole in the gravity direction.

According to the utility model discloses heat exchanger includes: a first tube and a second tube; the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities; a first member located inside the first tube, the first member dividing the first chamber into a first channel and a second channel extending in a length direction of the first tube, the first member having a plurality of fifth holes formed therein, the fifth holes penetrating the first member in a thickness direction of the first member, the fifth holes communicating the first channel and the second channel, the first channel communicating with the inner channel of the heat exchange tube, a partition located inside the second channel, the partition including a first partition and a second partition adjacently disposed in the length direction of the first tube, the first partition including a first hole penetrating the first partition in the length direction of the first tube, the second partition including a second hole penetrating the second partition in the length direction of the first tube, a longitudinal section of the first tubes through the first tube axis is defined as a first plane, a cross section of the first partition plate in the first plane includes a first end and a second end, the first end of the first partition plate is connected to the first member, the second end of the first partition plate is connected to the first tubes, a cross section of the second partition plate in the first plane includes a first end and a second end, the first end of the second partition plate is connected to the first member, the second end of the second partition plate is connected to the first tubes, and the heat exchanger operates as an evaporator in which the first end of the first partition plate and the first end of the second partition plate are located on the other side of the second passage axis in the radial direction of the first tubes, the second end of the first partition plate and the second end of the second partition plate are located on the other side of the second passage axis in the radial direction of the first tubes, the first end of the first baffle is gravitationally higher than the second end of the first baffle, and/or the first end of the second baffle is gravitationally lower than the second end of the second baffle.

In some embodiments, the separator plate has a projection, the projection of the first separator plate is located at the first end of the first separator plate, the projection of the second separator plate is located at the first end of the second separator plate, the first piece has a plurality of sixth holes therein, the sixth holes extend through the first piece in a thickness direction of the first piece, and the projection extends through the sixth holes and into the first channel.

According to the utility model discloses heat exchanger includes: a first tube and a second tube; the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities; the partition plates are positioned in the first cavity, the partition plates are arranged along the length direction of the first pipe at intervals, each partition plate comprises a seventh hole, the seventh holes penetrate through the partition plates along the length direction of the first pipe, at least part of the upper surface or the lower surface of each partition plate comprises a first surface, a second surface and a third surface, one side of each first surface is connected with the corresponding second surface, the other side of each first surface is connected with the corresponding third surface, the second surface and the axis direction of the first pipe are obliquely arranged, the third surface and the axis direction of the first pipe are obliquely arranged, and the seventh holes penetrate through the first surface.

In some embodiments, at least a portion of the upper or lower surface of the separator plate further comprises a fourth surface and/or a fifth surface, the second surface being connected between the first surface and the fourth surface, the third surface being connected between the first surface and the fifth surface, the second surface and the fourth surface forming an included angle, and the third surface and the fifth surface forming an included angle.

In some embodiments, in a width direction of the separator, a width dimension L1 of a projection of the fourth face at the first tube cross section is not greater than a tube wall thickness of the first tube, and a width dimension L2 of a projection of the fifth face at the first tube cross section is not greater than a tube wall thickness of the first tube.

Drawings

Fig. 1 is a schematic partial cross-sectional view of a heat exchanger according to an embodiment of the present invention.

Fig. 2 is a schematic view of the heat exchanger in fig. 1 in use.

Fig. 3 is a schematic drawing of dimensional indicia at the first tube in fig. 1.

Fig. 4 is a perspective view of the first separator in fig. 1.

Fig. 5 is a schematic cross-sectional view of the first tube of fig. 1.

Fig. 6 is a schematic partial cross-sectional view of a heat exchanger according to yet another embodiment of the present invention.

Fig. 7 is a schematic view of the first separator in fig. 6.

Fig. 8 is a partial perspective view of a heat exchanger according to another embodiment of the present invention.

Fig. 9 is a schematic view of the internal structure of the first tube of the heat exchanger of fig. 8.

Fig. 10 is a schematic view of the first tube of fig. 8.

Fig. 11 is a schematic view of a first piece inside the primary tube of fig. 8.

Fig. 12 is a perspective view of the second separator in fig. 8.

Fig. 13 is a partial perspective view of a heat exchanger according to yet another embodiment of the present invention.

Fig. 14 is a schematic view of the separator of fig. 13.

Fig. 15 is a graphic size scale schematic illustration of the septum of fig. 14.

Fig. 16 is a schematic view of the first tube of fig. 13.

Fig. 17 is a partial perspective view of a heat exchanger according to yet another embodiment of the present invention.

Fig. 18 is a partial perspective view of a heat exchanger according to another embodiment of the present invention.

Fig. 19 is a schematic view of the separator plate of fig. 18.

FIG. 20 is a schematic front view of the baffle of FIG. 19.

Fig. 21 is a schematic view of the first tube of fig. 20.

Fig. 22 is a schematic view of the first member in the first tube of fig. 18.

Fig. 23 is a schematic top cross-sectional view of the heat exchanger of fig. 18.

Reference numerals:

a first tube 1; a first chamber 11; a sub-cavity 111; a first channel 112; a second channel 113; a slot 114;

a heat exchange pipe 2;

a fin 3;

a partition plate 4; a first partition plate 41; a first hole 411; a first side 412; a third aperture 413; a second partition plate 42; a second hole 421; a second side 422; a fourth hole 423; a first face 431; a second face 432; a third face 433; a fourth face 434; a fifth side 435; a seventh aperture 436; an eighth aperture 437; the projection 44;

a communicating pipe 5;

a first member 6; a fifth hole 61; and a sixth aperture 62.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 5, a heat exchanger according to an embodiment of the present invention includes a first tube 1, a second tube (not shown), a heat exchange tube 2, and a partition plate 4.

The heat exchange tube 2 communicates a first tube 1 and a second tube, a plurality of heat exchange tubes 2 are arranged at intervals in a length direction of the first tube 1, and the first tube 1 includes a first cavity 11. As shown in fig. 1, the first pipe 1 and the second pipe are arranged at an interval in the left-right direction, the first pipe 1 and the second pipe are substantially parallel, and both the first pipe 1 and the second pipe extend in the up-down direction. A plurality of heat exchange tubes 2 are provided between the first tube 1 and the second tube, the plurality of heat exchange tubes 2 each extend in the left-right direction, and the plurality of heat exchange tubes 2 are arranged at intervals in the up-down direction (the length direction of the first tube 1).

The heat exchanger also comprises a plurality of fins 3, as shown in fig. 1, one fin 3 is arranged on each of the upper side and the lower side of each heat exchange tube 2, wherein the top end of the fin 3 positioned between two adjacent heat exchange tubes 2 is connected with one of the two heat exchange tubes 2, and the bottom end of the fin 3 is connected with the other of the two heat exchange tubes 2. The fins may be other fins known to those skilled in the art, such as tube-through fins, cross-fin fins, and the like.

As shown in fig. 1, the inner cavity of the first tube 1 forms a first chamber 11, the first chamber 11 extends in the up-down direction, and the right end of each heat exchange tube 2 extends into the first chamber 11.

The partition plate 4 is located in the first cavity 11, the partition plate 4 includes a first partition plate 41 and a second partition plate 42 which are adjacently arranged in the length direction of the first pipe 1, the first partition plate 41 includes a first hole 411, the first hole 411 penetrates through the first partition plate 41 in the length direction of the first pipe 1, the second partition plate 42 includes a second hole 421, the second hole 421 penetrates through the second partition plate 42 in the length direction of the first pipe 1, a longitudinal section of the first pipe 1 passing through the axis of the first pipe 1 is defined as a first plane, a section of the first partition plate 41 on the first plane includes a first end and a second end connected with the first pipe 1, and a section of the second partition plate 42 on the first plane includes a first end and a second end connected with the first pipe 1.

Specifically, as shown in fig. 1, the partition plates 4 are plural, the plural partition plates 4 are each provided in the first chamber 11 of the first pipe 1, and the plural partition plates 4 are arranged at intervals in the up-down direction (the longitudinal direction of the first pipe 1). The partition plates 4 may be divided into first partition plates 41 and second partition plates 42, and the first partition plates 41 and the second partition plates 42 are alternately arranged in the up-down direction, that is, one second partition plate 42 is disposed between two adjacent first partition plates 41, or one first partition plate 41 is disposed between two adjacent second partition plates 42.

The first partition plate 41 is inclined downward in a direction from right to left, the second partition plate 42 is inclined downward in a direction from left to right, the first partition plate 41 is connected to the inner peripheral wall of the first pipe 1, and the second partition plate 42 is connected to the inner peripheral wall of the first pipe 1, whereby the first partition plate 41 and the second partition plate 42 divide the first chamber 11 into a plurality of sub-chambers 111, and the plurality of sub-chambers 111 are sequentially arranged in the up-down direction. The first partition plate 41 is provided with a first hole 411, the first hole 411 penetrates through the upper surface and the lower surface of the first partition plate 41, the second partition plate 42 is provided with a second hole 421, the second hole 421 penetrates through the upper surface and the lower surface of the second partition plate 42, and two adjacent sub-chambers 111 are communicated through the first hole 411 or the second hole 421, so that the refrigerant flowing into the first pipe 1 can sequentially flow into each sub-chamber 111 through the first hole 411 and the second hole 421.

In the case where the heat exchanger operates as an evaporator, in the first plane, the first end of the first partition plate 41 and the first end of the second partition plate 42 are located on the same side of the axis of the first tube 1 in the radial direction of the first tube 1, the second end of the first partition plate 41 and the second end of the second partition plate 42 are located on the other side of the axis of the first tube 1 in the radial direction of the first tube 1, the first end of the first partition plate 41 is higher than the second end of the first partition plate 41 in the direction of gravity, and/or the first end of the second partition plate 42 is lower than the second end of the second partition plate 42 in the direction of gravity.

As shown in fig. 1 and 2, the first end of the first partition plate 41 is the left end of the first partition plate 41, the second end of the first partition plate 41 is the right end of the second partition plate 42, the first end of the second partition plate 42 is the left end of the second partition plate 42, and the second end of the second partition plate 42 is the right end of the second partition plate 42. The heat exchange tube 2 is disposed at the left side of the first tube 1, the first partition plate 41 and the second partition plate 42 are both located substantially at the right side of the heat exchange tube 2, the left end of the first partition plate 41 and the left end of the second partition plate 42 are both connected to the left inner peripheral wall of the first tube 1, and the right end of the first partition plate 41 and the right end of the second partition plate 42 are both connected to the right inner peripheral wall of the first tube 1.

Since the first partition plate 41 and the second partition plate 42 are both obliquely arranged, the left end of the first partition plate 41 is lower than the right end of the first partition plate 41, and the left end of the second partition plate 42 is higher than the right end of the second partition plate 42. It is understood that in other embodiments, the left end of the first partition plate 41 may be higher than the right end of the first partition plate 41, and the left end of the second partition plate 42 may be lower than the right end of the second partition plate 42.

As shown in fig. 1 and 2, the bottom of the first pipe 1 may be further provided with a communication pipe 5, the communication pipe 5 is disposed at the right side of the first pipe 1, the communication pipe 5 communicates with the first pipe 1, and the refrigerant may be supplied into the first pipe 1 via the communication pipe 5.

According to the utility model discloses heat exchanger, because the pressure manifold is vertical to be placed, first baffle 41 and second baffle 42 slope are arranged, under the action of gravity, liquid refrigerant can collect and flow to first hole 411 or second hole 421 along the incline direction of first baffle 41 and second baffle 42, in the heat exchanger use, because the effect of system pressure, liquid refrigerant can be by the propelling movement upwards and mix with the gaseous state refrigerant at top, thereby make the double-phase refrigerant of gas-liquid in each subchamber 111 can the intensive mixing, and then make the refrigerant can be by even reposition of redundant personnel to each heat exchange tube 2 in, the heat exchange efficiency of heat exchanger has been improved.

In some embodiments, the first aperture 411 of the first baffle 41 does not coincide with the projection of the second aperture 421 of the second baffle 42 onto the cross section of the first tube 1.

Specifically, as shown in fig. 1 to 3, the first partition plate 41 is inclined to the left, the left end of the first partition plate 41 is lower than the right end of the first partition plate 41, and the first hole 411 is provided at the left end position of the first partition plate 41. The second partition plate 42 is inclined to the right side, the left end of the second partition plate 42 is higher than the right end of the second partition plate 42, and the second hole 421 is provided at the right end position of the second partition plate 42. Thus, in the cross section (which can be regarded as a horizontal plane) of the first pipe 1, the first hole 411 and the second hole 421 are arranged at an interval in the left-right direction, and the projection of the first hole 411 on the cross section of the first pipe 1 and the projection of the second hole 421 on the cross section of the first pipe 1 are arranged at an interval in the width direction along the partition plate 4.

On one hand, the refrigerant can flow along the S-shaped curve in fig. 1 in the first pipe 1, so that the refrigerant turbulence effect is achieved, and the sufficient mixing of the gas-liquid two-phase refrigerant is facilitated, and on the other hand, in two adjacent sub-cavities 111, as shown in fig. 2, the flow directions of the flow cycles of the liquid refrigerant in one sub-cavity 111 and the liquid refrigerant in the other sub-cavity 111 of the two sub-cavities 111 are opposite, so that the refrigerant turbulence is further enhanced, and the sufficient mixing of the refrigerant is further ensured.

In some embodiments, the separator 4 has a thickness, the separator 4 comprises a first side 412 and a second side 422 arranged in the thickness direction of the separator 4, at least part of the first side 412 of the first separator 41 and/or at least part of the second side 422 of the first separator 41 forms an angle α with the cross-section of the first tube 1, at least part of the first side 412 of the second separator 42 and/or at least part of the second side 422 of the second separator 42 forms an angle β with the cross-section of the first tube 1, and the angle α and/or the angle β is smaller than 60 degrees.

As shown in fig. 3, the first side 412 of the separator 4 may be regarded as the upper surface of the separator 4, and the second side 422 of the separator 4 may be regarded as the lower surface of the separator 4, and the first side 412 and the second side 422 of the separator 4 are parallel in the up-down direction due to the uniform thickness of the separator 4 at all locations. Due to the oblique arrangement of the first and second baffles 41 and 42, the first side 412 (the second side 422) of the first baffle 41 and the cross section of the first tube 1 form an included angle α, which may have any value less than 60 degrees, for example, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 28 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, etc. The first side 412 (second side 422) of the second partition 42 and the cross-section of the first tube 1 form an angle β, which may have any value less than 60 degrees, for example, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 28 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, etc.

The angles of the included angle α and the included angle β may be the same or different. For example, in some embodiments, angles of included angle α and included angle β may each be 20 degrees, 30 degrees, 40 degrees, 50 degrees, and so forth. In other embodiments, angle α may be 10 degrees, angle β may be 20 degrees, angle α may be 30 degrees, angle β may be 15 degrees, etc.

The included angle alpha and the included angle beta are designed in a reasonable numerical range, on one hand, the situation that the size of the partition plate 4 is large in the up-down direction can be avoided, the arrangement of the partition plate 4 and the first pipe 1 is facilitated, on the other hand, the partition plate 4 is made to have a certain inclination angle, and therefore the liquid refrigerant keeps a reasonable sliding speed.

In some embodiments, the projected width dimension W1 of the partition 4 on the cross section of the first tube 1 in the radial direction of the first tube 1 is not smaller than the inner diameter D of the first tube 1.

As shown in fig. 4, the partition plate 4 has a width dimension W in the left-right direction, and since the partition plate 4 is obliquely arranged in the first tube 1, a projection of the partition plate 4 on the cross section of the first tube 1 has a width dimension W1, which is a width dimension W1, that is, a projection dimension of the width dimension W on the cross section of the first tube 1, as shown in fig. 3 in particular.

As shown in fig. 5, the first pipe 1 is a circular pipe, the first pipe 1 has an inner diameter D, and the projected width dimension W1 of the partition plate 4 is larger than the inner diameter D of the first pipe 1. Thus, when the partition plate 4 is installed in the first pipe 1, good sealing performance can be ensured between the partition plate 4 and the inner peripheral wall of the first pipe 1.

In some embodiments, the first partition plate 41 is further provided with a third hole 413, the first hole 411 and the third hole 413 are both provided at the first end of the first partition plate 41, and the third hole 413 is lower than the first hole 411 in the gravity direction, and/or the second partition plate 42 is further provided with a fourth hole 423, the second hole 421 and the fourth hole 423 are both provided at the second end of the second partition plate 42, and the fourth hole 423 is lower than the second hole 421 in the gravity direction.

As shown in fig. 6 and 7, the first partition plate 41 and the second partition plate 42 are disposed in the first chamber 11 of the first pipe 1, the first partition plate 41 is inclined downward in a right-to-left direction, the first hole 411 is disposed at a left end of the first partition plate 41, a third hole 413 is further disposed on the first partition plate 41, the third hole 413 is also disposed at a left end of the first partition plate 41, and the third hole 413 is located at a position slightly lower than the first hole 411 in an up-and-down direction.

The second partition plate 42 is inclined downward from left to right, the second hole 421 is provided at the right end of the second partition plate 42, the second partition plate 42 is further provided with a fourth hole 423, the fourth hole 423 is also provided at the right end of the second partition plate 42, and the fourth hole 423 is located slightly lower than the second hole 421 in the vertical direction.

Since the third hole 413 is lower than the first hole 411, the liquid refrigerant that does not pass through the first hole 411 on the first partition plate 41 falls from the third hole 413 onto the second partition plate 42 below and participates in the circulation of the liquid refrigerant in the sub-chamber 111 below, and similarly, since the fourth hole 423 is lower than the second hole 421, the liquid refrigerant that does not pass through the second hole 421 on the second partition plate 42 falls from the fourth hole 423 onto the first partition plate 41 below and participates in the circulation of the liquid refrigerant in the sub-chamber 111 below, thereby enabling the gas-liquid two-phase refrigerant to be more sufficiently mixed.

A heat exchanger according to another embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 8 to 12, a heat exchanger according to an embodiment of the present invention includes a first tube 1, a second tube, a heat exchange tube 2, a first piece 6, and a partition plate 4.

The heat exchange tube 2 communicates a first tube 1 and a second tube, a plurality of heat exchange tubes 2 are arranged at intervals in a length direction of the first tube 1, and the first tube 1 includes a first cavity 11. As shown in fig. 8, a first tube 1 and a second tube (not shown) are arranged substantially in parallel, and a plurality of heat exchange tubes 2 are provided between the first tube 1 and the second tube. The specific arrangement of the first tube 1, the second tube and the heat exchange tube 2 may be the same as that in the above embodiments, and will not be described herein again.

The first member 6 is positioned in the first tube 1, the first member 6 divides the first chamber 11 into a first channel 112 and a second channel 113, the first channel 112 and the second channel 113 extend along the length direction of the first tube 1, the first member 6 has a plurality of third holes, the third holes penetrate the first member 6 in the thickness direction of the first member 6, the third holes communicate with the first channel 112 and the second channel 113, and the first channel 112 communicates with the inner channel of the heat exchange tube 2. The partition plate 4 is located in the second passage 113, the partition plate 4 includes a first partition plate 41 and a second partition plate 42 which are adjacently disposed in a length direction of the first tube 1, the first partition plate 41 includes a first hole which penetrates the first partition plate 41 in the length direction of the first tube 1, the second partition plate 42 includes a second hole which penetrates the second partition plate 42 in the length direction of the first tube 1, a longitudinal section of the first tube 1 passing through an axis of the first tube 1 is defined as a first plane, a cross section of the first partition plate 41 on the first plane includes a first end and a second end, the first end of the first partition plate 41 is connected to the first member 6, the second end of the first partition plate 41 is connected to the first tube 1, a cross section of the second partition plate 42 on the first plane 431 includes a first end and a second end, the first end of the second partition plate 42 is connected to the first member 6, and the second end of the second partition plate 42 is connected to the first tube 1.

Specifically, as shown in fig. 8 to 12, the first member 6 is a distribution plate, the first member 6 is disposed in the first pipe 1, the first member 6 extends in the up-down direction, the periphery of the first member 6 is hermetically connected to the inner peripheral wall of the first pipe 1, and in the left-right direction, the first member 6 divides the first cavity 11 of the first pipe 1 into a first passage 112 and a second passage 113, as shown in fig. 9, the first passage 112 and the second passage 113 both extend in the up-down direction, and the first passage 112 is located on the left side of the first member 6, and the second passage 113 is located on the right side of the first member 6.

As shown in fig. 11, the first member 6 is provided with a plurality of fifth holes 61, the plurality of fifth holes 61 are arranged at intervals along the length direction of the first member 6, and the fifth holes 61 are used for communicating the first passage 112 and the second passage 113.

As shown in fig. 9, the heat exchange tube 2 is disposed at the left side of the first tube 1, the right end of the heat exchange tube 2 is inserted into the first channel 112, and the inner channel of the heat exchange tube 2 is communicated with the first channel 112. The partition plates 4 are provided in the second channel 113 (which may be regarded as a part of the first chamber 11), the plurality of partition plates 4 are arranged at intervals in the up-down direction, the interval between two adjacent partition plates 4 forms sub-chambers 111, and each sub-chamber 111 corresponds to at least one fifth hole 61, whereby the refrigerant in each sub-chamber 111 can flow into the first flow channel via the corresponding fifth hole 61. It should be noted that the partition plates 4 in the second channel 113 also include first partition plates 41 and second partition plates 42, the first partition plates 41 and the second partition plates 42 are alternately arranged at intervals in the up-down direction, the first partition plates 41 are arranged obliquely downward in the right-to-left direction, and the second partition plates 42 are arranged obliquely downward in the left-to-right direction.

As shown in fig. 12, since the partition plate 4 is provided only in the second passage 113, the width W of the partition plate 4 in the left-right direction is small, and the width W of the partition plate 4 may be larger than the radial dimension of the second passage 113 in the left-right direction.

As shown in fig. 9, the communication pipe 5 communicates with the lowermost sub-chamber 111, the refrigerant flowing in from the communication pipe 5 flows into each sub-chamber 111 in sequence along the direction from bottom to top, and the refrigerant in each sub-chamber 111 flows into the first channel 112 via the corresponding fifth hole 61 and then flows into each heat exchange tube 2.

In the using process of the heat exchanger, when the space of the first cavity 11 is large, the arrangement of the partition plate 4 in the first cavity 11 can cause large system pressure drop and reduce the conveying efficiency of refrigerant, the first part 6 is arranged in the first pipe 1, the first cavity 11 is divided into the first channel 112 and the second channel 113 by the first part 6, and the space of the second channel 113 is small relative to the space of the first cavity 11, so that the pressure maintaining effect is achieved, and the pressure loss of the system is reduced.

Preferably, the fifth hole 61 is not provided on the chamber wall of the sub-chamber 111 connected to the communication pipe 5. As shown in fig. 9, the communication pipe 5 is communicated with the lowermost sub-chamber 111, and the fifth hole 61 is not provided at the part of the first member 6 corresponding to the sub-chamber 111, so that the refrigerant flowing into the sub-chamber 111 can only flow upwards into the adjacent sub-chamber 111, thereby avoiding the situation that the communication pipe 5 is directly communicated with the heat exchange pipe 2 through the fifth hole 61, and enabling the refrigerant to fully flow into the upper sub-chamber 111.

In the case where the heat exchanger operates as an evaporator, in the first plane, the first end of the first partition plate 41 and the first end of the second partition plate 42 are located on the same side of the second passage axis in the radial direction of the first tubes 1, the second end of the first partition plate 41 and the second end of the second partition plate 42 are located on the other side of the second passage axis in the radial direction of the first tubes 1, the first end of the first partition plate 41 is higher than the second end of the first partition plate 41 in the direction of gravity, and/or the first end of the second partition plate 42 is lower than the second end of the second partition plate 42 in the direction of gravity.

Specifically, as shown in fig. 9, the orientation arrangement of the first partition plate 41 and the second partition plate 42 may be the same as in the above-described embodiment. In the present embodiment, both the first partition plate 41 and the second partition plate 42 are provided in the second passage, wherein the first partition plate 41 is arranged obliquely downward in the right-to-left direction, and the second partition plate 42 is arranged obliquely downward in the left-to-right direction. The first partition plate 41 and the second partition plate 42 divide the second passage into a plurality of sub-chambers in the up-down direction, each sub-chamber being located between the adjacent first partition plate 41 and second partition plate 42.

In some embodiments, the separator 4 has the projection 44, the projection 44 of the first separator 41 is located at the first end of the first separator 41, the projection 44 of the second separator 42 is located at the first end of the second separator 42, the first member 6 has a plurality of sixth holes 62 therein, the sixth holes 62 penetrate the first member 6 in the thickness direction of the first member 6, and the projection 44 penetrates the sixth holes 62 and extends into the first passage 112.

As shown in fig. 18 to 23, a first member 6 is provided in the first tube 1, the first member 6 divides the first chamber 11 of the first tube 1 into a first channel 112 and a second channel 113, the heat exchange tube 2 is provided on the left side of the first tube 1, the inner channel of the heat exchange tube 2 is communicated with the first channel 112, the communication tube 5 is provided on the right side of the first tube 1, and the inner cavity of the communication tube 5 is communicated with the second channel 113.

The partition plate 4 is disposed in the second channel 113, as shown in fig. 19, the left end of the partition plate 4 is provided with the protruding portion 44, as shown in fig. 22, the partition plate 4 is provided with a plurality of sixth holes 62, and after the partition plate 4 is disposed in the second channel 113, the protruding portions 44 on the partition plate 4 are inserted into the plurality of sixth holes 62 in a one-to-one correspondence manner, penetrate through the sixth holes 62, and extend into the first channel 112, as shown in fig. 23.

The protrusion 44 is arranged to enhance the fixing effect of the partition board 4, and the partition board 4 is restrained and positioned by the protrusion 44 and the wall of the sixth hole 62, and the protrusion 44 has a turbulent flow effect because the protrusion 44 extends into the first channel 112, so that the refrigerant flowing into the heat exchange tube 2 is more uniform.

A heat exchanger according to still another embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 13 to 16, the heat exchanger according to the embodiment of the present invention includes a first tube 1, a second tube, a heat exchange tube 2, and a plurality of separators 4.

The heat exchange tube 2 communicates a first tube 1 and a second tube, a plurality of heat exchange tubes 2 are arranged at intervals in a length direction of the first tube 1, and the first tube 1 includes a first cavity 11. The arrangement of the first tubes 1, the second tubes and the heat exchange tubes 2 may be the same as in the above-described embodiment, and will not be described herein again.

The partition plate 4 is located in the first chamber 11, the partition plates 4 are arranged at intervals along the length direction of the first pipe 1, the partition plate 4 includes a seventh hole 436, the seventh hole 436 penetrates the partition plate 4 along the length direction of the first pipe 1, at least part of the upper surface or the lower surface of the partition plate 4 includes a first face 431, a second face 432, and a third face 433, one side of the first face 431 is connected to the second face 432, the other side of the first face 431 is connected to the third face 433, the projection of the second face 432 on the cross section of the first pipe 1, the projection of the first face 431 on the cross section of the first pipe 1, and the projection of the third face 433 on the cross section of the first pipe 1 are sequentially arranged along the radial direction of the first pipe 1, and the second face 432 and the third face 433 are located above the first face 431 in the gravity direction, and the seventh hole 436 penetrates the first face 431.

As shown in fig. 14, the partition plate 4 is V-shaped as a whole, the partition plate 4 is provided in plurality, the plurality of partition plates 4 are arranged at intervals in the up-down direction, and the plurality of partition plates 4 divide the first chamber 11 of the first pipe 1 into a plurality of sub-chambers 111. The upper surface of the partition board 4 includes a first surface 431, a second surface 432 and a third surface 433, the second surface 432, the first surface 431 and the third surface 433 are sequentially arranged along the width direction of the partition board 4, the first surface 431 is a horizontal surface, the second surface 432 is connected to one side of the first surface 431 and forms an included angle with the first surface 431, and the third surface 433 is connected to the other side of the first surface 431 and forms an included angle with the first surface 431. Since the thickness of the separator 4 is uniform throughout, the lower surface of the separator 4 can also be regarded as being composed of the second face 432, the third face 433, and the first face 431.

As shown in fig. 15, the smaller included angle formed by the second surface 432 and the first surface 431 is θ, the smaller included angle formed by the third surface 433 and the first surface 431 is γ, and the included angles θ and γ are not greater than 60 degrees. For example, the included angle θ may be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 40 degrees, 50 degrees, etc. The included angle γ may be 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 40 degrees, 50 degrees, etc.

The partition plate 4 is provided with a seventh hole 436, and the seventh hole 436 penetrates the upper surface and the lower surface of the partition plate 4, as shown in fig. 14, the seventh hole 436 is provided at a position of the partition plate 4 corresponding to the first face 431, and the plurality of seventh holes 436 are arranged at intervals along the length direction of the first face 431. The sub-chambers 111 at the upper and lower sides of the partition plate 4 can be communicated through the seventh hole 436.

When the partition plate 4 is installed, the first face 431 may be disposed in an orientation perpendicular to the length direction (up-down direction in fig. 13) of the first pipe 1, thereby facilitating determination of the position of the partition plate 4 and further facilitating assembly of the partition plate 4 and the first pipe 1.

In some embodiments, at least a portion of the upper or lower surface of the baffle 4 further includes a fourth face 434 and/or a fifth face 435, the second face 432 being connected between the first face 431 and the fourth face 434, the third face 433 being connected between the first face 431 and the fifth face 435, the fourth face 434 and the second face 432 being angled, and the fifth face 435 and the third face 433 being angled.

As shown in fig. 14, two sides of the partition board 4 in the width direction may be further provided with flanges, a top surface or a bottom surface of each flange forms a fourth surface 434 or a fifth surface 435, the second surface 432 is located between the fourth surface 434 and the first surface 431, the fourth surface 434 and the second surface 432 form an included angle, the third surface 433 is located between the fifth surface 435 and the first surface 431, and the fifth surface 435 and the third surface 433 form an included angle. In some embodiments, the fourth face 434, the fifth face 435 may both be parallel to the first face 431. Thereby, the positioning and installation of the partition 4 are further facilitated.

It should be noted that the included angle between the fourth surface 434 and the second surface 432 can be selected according to the actual situation, for example, in fig. 15, the fourth surface 434 can be inclined in the direction from the top left to the bottom right, and the fourth surface 434 can also be inclined in the direction from the bottom left to the top right. Similarly, the angle between the fifth surface 435 and the third surface 433 can be selected according to the actual situation, for example, in fig. 15, the fifth surface 435 can be inclined in the direction from top left to bottom right, and the fifth surface 435 can also be inclined in the direction from bottom left to top right.

In some embodiments, in the width direction of the partition 4, the width dimension L1 of the projection of the fourth face 434 on the cross section of the first tube 1 is not greater than the wall thickness of the first tube 1, and the width dimension L2 of the projection of the fifth face 435 on the cross section of the first tube 1 is not greater than the wall thickness of the first tube 1.

As shown in fig. 15, the fourth surface 434 and the fifth surface 435 are both arranged in parallel with the first surface 431, the width dimension of the fourth surface 434 is the same as the width dimension L1 of the fourth surface 434 on the cross section of the first pipe 1, the width dimension of the fifth surface 435 is the same as the width dimension L2 of the fifth surface 435 on the cross section of the first pipe 1, and both the width dimension L1 and the width dimension L2 are smaller than the pipe wall thickness of the first pipe 1, so that the flange on the partition board 4 can be embedded in the pipe wall of the first pipe 1, and the installation tightness of the partition board 4 and the first pipe 1 is ensured.

In some embodiments, a plurality of eighth holes 437 may be further provided in the partition plate 4, as shown in fig. 19, the eighth holes 437 are provided at positions of the partition plate 4 corresponding to the second and third faces 432, 433, the eighth holes 437 penetrate the upper and lower surfaces of the partition plate 4, and the liquid refrigerant flowing along the second and third faces 432, 433 may be pushed up again at the eighth holes 437, thereby achieving mixing with the gas-phase refrigerant at the top of the sub-chamber 111.

In some embodiments, the width direction of the partition 4 may be parallel to the length direction of the heat exchange tube 2, and the width direction of the heat exchange tube 2 may also be perpendicular to the length direction of the heat exchange tube 2. As shown in fig. 17, the width direction of the partition plate 4 is the front-rear direction, and the length direction of the heat exchange tube 2 is the left-right direction, in which case the width direction of the partition plate 4 is perpendicular to the length direction of the heat exchange tube 2. As shown in fig. 13, the width direction of the partition plate 4 and the length direction of the heat exchange tube 2 are both left and right directions, and the width direction of the partition plate 4 and the length direction of the heat exchange tube 2 are parallel.

In some embodiments, the wall of the first tube 1 is provided with a groove 114, the groove 114 penetrates through the first tube 1 along the radial direction of the first tube 1, as shown in fig. 16, the partition plate 4 is fixed in the first tube 1 by inserting and sealing, and the shape of the groove 114 is matched with the shape of the partition plate 4.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless expressly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. A heat exchanger, comprising:

a first tube and a second tube;

the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities;

a partition plate located in the first chamber, the partition plate including a first partition plate and a second partition plate adjacently disposed in a length direction of the first tube, the first partition plate including a first hole penetrating the first partition plate in the length direction of the first tube, the second partition plate including a second hole penetrating the second partition plate in the length direction of the first tube,

defining a longitudinal cross-section of the first tube through the first tube axis as a first plane, a cross-section of the first baffle in the first plane including a first end and a second end connected to the first tube, a cross-section of the second baffle in the first plane including a first end and a second end connected to the first tube,

in the case where the heat exchanger operates as an evaporator, in the first plane, a first end of a first partition plate and a first end of a second partition plate are located on the same side of the first tube axis in the radial direction of the first tubes, a second end of the first partition plate and a second end of the second partition plate are located on the other side of the first tube axis in the radial direction of the first tubes, the first end of the first partition plate is gravitationally higher than the second end of the first partition plate, and/or the first end of the second partition plate is gravitationally lower than the second end of the second partition plate.

2. The heat exchanger of claim 1, wherein a projection of the first aperture of the first separator plate and the second aperture of the second separator plate onto a cross-section of the first tube is non-coincident.

3. The heat exchanger according to claim 1 or 2, wherein the separator has a thickness, the separator comprises a first side surface and a second side surface arranged in a thickness direction of the separator, an angle α between at least a portion of the first side surface of the first separator and/or at least a portion of the second side surface of the first separator and a cross-section of the first tube is provided, an angle β between at least a portion of the first side surface of the second separator and/or at least a portion of the second side surface of the second separator and a cross-section of the first tube is provided, and the angle α and/or the angle β is smaller than 60 degrees.

4. The heat exchanger according to claim 1 or 2, wherein a projected width dimension W1 of the partition plate on the first tube cross section in a radial direction of the first tube is not smaller than an inner diameter D of the first tube.

5. The heat exchanger according to claim 1 or 2, wherein the first separator plate is further provided with a third hole, wherein the first hole and the third hole are both provided at the first end of the first separator plate, and wherein the third hole is lower than the first hole in the direction of gravity, and/or,

and a fourth hole is also formed in the second partition plate, the second hole and the fourth hole are formed in the second end of the second partition plate, and the fourth hole is lower than the second hole in the gravity direction.

6. A heat exchanger, comprising:

a first tube and a second tube;

the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities;

a first member located inside the first tube, the first member dividing the first chamber into a first channel and a second channel extending in a length direction of the first tube, the first member having a plurality of fifth holes formed therein, the fifth holes penetrating the first member in a thickness direction of the first member, the fifth holes communicating the first channel and the second channel, the first channel communicating with the inner channel of the heat exchange tube,

a partition plate positioned in the second passage, the partition plate including a first partition plate and a second partition plate adjacently disposed in a length direction of the first tube, the first partition plate including a first hole penetrating the first partition plate in the length direction of the first tube, the second partition plate including a second hole penetrating the second partition plate in the length direction of the first tube,

defining a longitudinal cross-section of the first tube through the first tube axis as a first plane, a cross-section of the first baffle in the first plane including a first end and a second end, the first end of the first baffle being connected to the first member, the second end of the first baffle being connected to the first tube, a cross-section of the second baffle in the first plane including a first end and a second end, the first end of the second baffle being connected to the first member, the second end of the second baffle being connected to the first tube,

in the case where the heat exchanger operates as an evaporator, in the first plane, a first end of a first partition plate and a first end of the second partition plate are located on the same side of the second passage axis in the radial direction of the first tubes, a second end of the first partition plate and a second end of the second partition plate are located on the other side of the second passage axis in the radial direction of the first tubes, the first end of the first partition plate is gravitationally higher than the second end of the first partition plate, and/or the first end of the second partition plate is gravitationally lower than the second end of the second partition plate.

7. The heat exchanger of claim 6, wherein the separator plate has a projection, the projection of the first separator plate is located at a first end of the first separator plate, the projection of the second separator plate is located at a first end of the second separator plate, the first piece has a plurality of sixth holes therein, the sixth holes extending through the first piece in a thickness direction of the first piece, the projection extending through the sixth holes and into the first channel.

8. A heat exchanger, comprising:

a first tube and a second tube;

the heat exchange tubes are communicated with the first tubes and the second tubes, the heat exchange tubes are arranged at intervals in the length direction of the first tubes, and the first tubes comprise first cavities;

the partition plates are positioned in the first cavity, the partition plates are arranged at intervals along the length direction of the first pipe, each partition plate comprises a seventh hole, the seventh hole penetrates through the partition plates along the length direction of the first pipe, at least part of the upper surface or the lower surface of each partition plate comprises a first surface, a second surface and a third surface, one side of each first surface is connected with the corresponding second surface, the other side of each first surface is connected with the corresponding third surface, the projection of the second surface on the cross section of the first pipe, the projection of the first surface on the cross section of the first pipe and the projection of the third surface on the cross section of the first pipe are sequentially arranged along the radial direction of the first pipe, the second surface and the third surface are positioned above the first surface in the gravity direction, and the seventh holes penetrate through the first surface.

9. The heat exchanger of claim 8, wherein at least a portion of the upper or lower surface of the separator plate further comprises a fourth face and/or a fifth face, the second face being connected between the first face and the fourth face, the third face being connected between the first face and the fifth face, the second face and the fourth face being angled, and the third face and the fifth face being angled.

10. The heat exchanger of claim 9, wherein, in a width direction of the separator plate, a projected width dimension L1 of the fourth face at the first tube cross section is not greater than a tube wall thickness of the first tube, and a projected width dimension L2 of the fifth face at the first tube cross section is not greater than a tube wall thickness of the first tube.

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