Shell and tube condenser and air conditioning system

Abstract

The utility model discloses a shell and tube condenser and an air conditioning system. The shell and tube condenser comprises a shell, an air inlet pipe and a plate, a heat exchange tube bundle is arranged in the shell, and at least one end, in the first direction, of the heat exchange tube bundle is connected with the shell; an end opening of one end of the air inlet pipe faces the side face of the heat exchange pipe bundle, and the air inlet pipe is used for filling a gas refrigerant into the shell so as to exchange heat with the heat exchange pipe bundle; the plate is arranged between an opening in one end of the air inlet pipe and the side face of the heat exchange tube bundle, the plate and the opening in the end of one end of the air inlet pipe are spaced, the plate is provided with a plurality of open holes, and the open holes are communicated with the side, facing the air inlet pipe, of the plate and the side, facing the heat exchange tube bundle, of the plate. At least one side edge in the circumferential direction of the plate is separated from the shell to form an opening area. The gas refrigerant is more uniformly distributed in the shell and tube condenser, and the heat exchange area of the heat exchange tube bundle can be more fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to a shell and tube condenser and an air conditioning system. Background Art

[0002] Shell and tube condensers are commonly used in medium and large chillers. The gas refrigerant enters the container through the inlet pipe, then exchanges heat with the cooling water flowing in the heat exchange tubes on the outside of the heat exchange tubes, and then condenses into liquid and flows out from the bottom of the container.

[0003] In order to prevent the gas refrigerant from directly flushing the heat exchange tube bundle and causing vibration, an anti-collision plate is provided at the inlet pipe inside the condenser container in the related art. Figure 3 As shown, the provision of the anti-collision plate will result in a small gas refrigerant flow rate in the area of ​​the anti-collision plate facing away from the inlet pipe, and the heat exchange area of ​​the heat exchange tube bundle is not effectively utilized. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a shell and tube condenser, in which the gas refrigerant is more evenly distributed and the heat exchange area of ​​the heat exchange tube bundle can be more fully utilized.

[0005] The shell and tube condenser according to the embodiment of the utility model comprises:

[0006] A shell, wherein a heat exchange tube bundle is disposed in the shell, and at least one end of the heat exchange tube bundle in a first direction is connected to the shell;

[0007] An air inlet pipe, one end of which is open toward the side of the heat exchange tube bundle, and the air inlet pipe is used to charge gas refrigerant into the shell to exchange heat with the heat exchange tube bundle;

[0008] A plate member, wherein the plate member is disposed between an opening at one end of the intake pipe and a side surface of the heat exchange tube bundle, and is spaced apart from the opening at one end of the intake pipe. The plate member has a plurality of openings, and the openings connect a side of the plate member facing the intake pipe and a side facing the heat exchange tube bundle. At least one circumferential edge of the plate member is spaced apart from the shell to form an opening area.

[0009] According to the shell and tube condenser of the embodiment of the utility model, a plate with a plurality of openings is provided, and the openings connect the side of the plate facing the air inlet pipe and the side facing the heat exchange tube bundle. Thus, on the one hand, the plate can play a certain role in blocking the gas refrigerant, reducing the impact strength of the high-speed flowing gas refrigerant on the heat exchange tube bundle, thereby reducing the possibility of damage to the heat exchange tube bundle and noise generation, which is conducive to extending the service life of the heat exchange tube bundle; on the other hand, the gas refrigerant can flow through the openings to the side of the plate facing the heat exchange tube bundle, thereby the heat exchange on the side of the plate facing away from the air inlet pipe is The flow rate of the gas refrigerant around the tube bundle increases, so that part of the heat exchange tube bundle located on the side of the plate facing away from the air inlet pipe can also contact the gas refrigerant for heat exchange, thereby making the heat exchange area of ​​the heat exchange tube bundle more efficiently utilized; in addition, by separating at least one side edge of the plate circumference from the shell to form an open area, the gas refrigerant flowing in the first direction and / or the second direction has less flow velocity loss, and the gas refrigerant can more easily reach the end of the shell in the first direction and / or the end of the shell in the second direction, so that the heat exchange surface of the end of the heat exchange tube bundle close to the shell can also be fully utilized.

[0010] In some embodiments, both side edges of the plate circumference in the first direction are spaced apart from the inner side wall of the shell, and both side edges of the plate circumference in the second direction are connected to the inner side wall of the shell, and the second direction is perpendicular to the first direction.

[0011] In some embodiments, the projection of the opening at one end of the air inlet pipe along its normal direction on the plate is a first projection area, and the distance between the multiple openings in the first projection area is greater than the distance between the multiple openings in the remaining areas of the plate.

[0012] In some embodiments, the projection of the opening at one end of the air inlet pipe along its normal direction on the plate is a first projection area, and the area of ​​the opening in the first projection area is smaller than the area of ​​the opening in the remaining area of ​​the plate.

[0013] In some embodiments, at least part of the plurality of openings are arranged along a third direction and a fourth direction, and the third direction and the fourth direction form a set angle, wherein the spacing between adjacent openings is equal; and / or the distance between the plurality of openings arranged spaced apart along the third direction is greater than or less than the distance between the plurality of openings arranged spaced apart along the fourth direction.

[0014] In some embodiments, the distance between the two ends of the heat exchange tube bundle connected to the shell in the first direction is L0, the size of the plate in the first direction is L1, and 0.1≤L1 / L0≤0.4.

[0015] In some embodiments, a size of the plate in the first direction and a size of the plate in the second direction are both larger than a size of an opening at one end of the air inlet pipe.

[0016] In some embodiments, the two ends of the shell in the first direction are a first end and a second end, the air inlet pipe is arranged at the end of the shell close to the first end, and the projection of the end opening of one end of the air inlet pipe on the plate along its own normal direction is a first projection area; in the first direction, the part of the plate located on the side of the center point of the first projection area close to the first end is the first part, and the part of the plate located on the side of the center point of the first projection area close to the second end is the second part, and the size of the first part is smaller than the size of the second part.

[0017] In some embodiments, a central axis direction of the air inlet pipe forms a set angle with a normal direction of the plate, and the set angle is greater than or equal to 0° and less than 90°.

[0018] In some embodiments, one end of the air inlet pipe is located above the heat exchange tube bundle.

[0019] A second aspect of the utility model is to provide an air conditioning system.

[0020] The air conditioning system according to the embodiment of the second aspect of the utility model comprises a shell and tube condenser according to any one of the embodiments of the first aspect of the utility model. Since the air conditioning system according to the embodiment of the second aspect of the utility model comprises a shell and tube condenser according to any one of the embodiments of the first aspect of the utility model, the air conditioning system according to the embodiment of the second aspect of the utility model has at least the following advantages: higher energy utilization efficiency and better cooling and heating capabilities.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the shell and tube condenser in the embodiment of the utility model.

[0024] Figure 2 yes Figure 1 Top view of the .

[0025] Figure 3 It is a flow velocity distribution diagram of the gas refrigerant in the shell and tube condenser of the related art.

[0026] Reference numerals:

[0027] Shell and tube condenser 100;

[0028] Heat exchange tube bundle 10; heat exchange tube 101; air intake pipe 20;

[0029] Plate 30; opening 301; end plate 40; support plate 50;

[0030] First direction F1; second direction F2. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0034] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Reference below Figure 1 and Figure 2, describing a shell and tube condenser and an air conditioning system according to an embodiment of the utility model.

[0037] like Figure 1 and Figure 2 As shown, the shell and tube condenser 100 according to the embodiment of the utility model comprises a shell, an air inlet pipe 20 and a plate 30. A heat exchange tube bundle 10 is arranged in the shell, and at least one end of the heat exchange tube bundle 10 in the first direction F1 is connected to the shell; one end of the air inlet pipe 20 opens toward the side of the heat exchange tube bundle 10, and the air inlet pipe 20 is used to fill the shell with gas refrigerant to exchange heat with the heat exchange tube bundle 10; the plate 30 is arranged between the opening of one end of the air inlet pipe 20 and the side of the heat exchange tube bundle 10, and is spaced apart from the opening of one end of the air inlet pipe 20, and the plate 30 has a plurality of openings 301, and the openings 301 connect the side of the plate 30 facing the air inlet pipe 20 and the side facing the heat exchange tube bundle 10, and at least one side edge of the circumference of the plate 30 is spaced apart from the shell to form an opening area.

[0038] It should be noted that a heat exchange tube bundle 10 is provided in the shell, and the heat exchange tube bundle 10 includes a plurality of heat exchange tubes 101 arranged in parallel. The heat exchange tubes 101 may be straight tubes, or may be tube bodies including straight tube sections and curved tube sections.

[0039] At least one end of the heat exchange tube bundle 10 in the first direction F1 is connected to the shell; that is, both ends of the heat exchange tube bundle 10 in the first direction F1 may be connected to the shell; or, only one of the two ends of the heat exchange tube bundle 10 in the first direction F1 is connected to the shell. More specifically, the shell includes a cylindrical shell and an end plate 40 provided at at least one end of the cylindrical shell, and the heat exchange tube bundle 10 is connected to the end plate 40. The first direction F1 may be the axial direction of the cylindrical shell.

[0040] One end of the air inlet pipe 20 is opened toward the side of the heat exchange tube bundle 10, that is, toward the outer peripheral wall of the heat exchange tube 101. The air inlet pipe 20 is used to fill the shell with gas refrigerant. The gas refrigerant entering the shell will exchange heat with the outer peripheral wall of the heat exchange tube 101, and the outer peripheral wall of the heat exchange tube 101 will then exchange heat with the heat exchange medium flowing in the heat exchange tube 101. The gas refrigerant condenses into liquid and flows out from the bottom of the container.

[0041] It should be noted that the flow velocity of the gas refrigerant just entering the shell may be very high. The gas refrigerant with a very high flow velocity directly impacts the heat exchange tube bundle 10, which may cause the heat exchange tube bundle 10 to vibrate, leak, corrode, and generate noise. The utility model arranges a plate 30, and the plate 30 is arranged between the end opening of one end of the intake pipe 20 and the side of the heat exchange tube bundle 10, and is spaced from the end opening of the intake pipe 20. In this way, the gas refrigerant will directly impact the plate 30 after entering the shell, thereby reducing the direct impact on the heat exchange tube bundle 10, thereby reducing the possibility of damage to the heat exchange tube bundle 10 and generating noise, which is beneficial to extending the service life of the heat exchange tube bundle 10.

[0042] The plate 30 in the utility model has a plurality of openings 301, and the openings 301 connect the side of the plate 30 facing the air inlet pipe 20 and the side facing the heat exchange tube bundle 10. It can be understood that by arranging the openings 301 on the plate 30, on the one hand, the gas refrigerant discharged from the air inlet pipe 20 flows to the heat exchange tube bundle 10 after passing through the plurality of openings 301, so that the flow rate and flow velocity of the gas refrigerant directly flowing to the heat exchange tube bundle 10 are greatly reduced, thereby reducing the intensity of the impact on the heat exchange tube bundle 10, and further reducing the possibility of damage to the heat exchange tube bundle 10 and generating noise; on the other hand, part of the gas refrigerant can directly flow through the openings 301 to the side of the plate 30 facing the heat exchange tube bundle 10, and exchange heat with the heat exchange tube bundle 10 on the side of the plate 30 facing away from the air inlet pipe 20, thereby increasing the flow rate of the gas refrigerant around the heat exchange tube bundle 10 on the side of the plate 30 facing away from the air inlet pipe 20, thereby improving the utilization rate of the heat exchange area of ​​the heat exchange tube bundle 10. The plate 30 may be spaced apart from the heat exchange tube bundle 10 .

[0043] At least one side edge of the plate 30 in the circumference is spaced from the shell to form an opening area, for example, one side edge of the plate 30 in the first direction F1 is spaced from the inner side wall of the shell to form an opening area; or, both side edges of the plate 30 in the first direction F1 are spaced from the inner side wall of the shell to form an opening area; or, one side edge of the plate 30 in the second direction F2 is spaced from the inner side wall of the shell to form an opening area; or, both side edges of the plate 30 in the second direction F2 are spaced from the inner side wall of the shell to form an opening area; or, both side edges of the plate 30 in the first direction F1 and one side edge of the plate 30 in the second direction F2 are spaced from the inner side wall of the shell to form an opening area; or, both side edges of the plate 30 in the second direction F2 and one side edge of the plate 30 in the first direction F1 are spaced from the inner side wall of the shell to form an opening area, and the remaining edges of the plate 30 are connected to the inner side wall of the shell to be fixed to the inner side wall of the shell. The second direction F2 forms a set angle with the first direction F1. For example, the first direction F1 may be perpendicular to the second direction F2.

[0044] At least one side edge of the plate 30 in the circumferential direction is separated from the shell to form an open area, so that the gas refrigerant can flow from the open area to the end of the shell in the first direction F1 and / or the end of the shell in the second direction F2 without being blocked. The gas refrigerant flowing along the first direction F1 and / or the second direction F2 has less flow velocity loss, and the gas refrigerant can more easily reach the end of the shell in the first direction F1 and / or the end of the shell in the second direction F2, so that the heat exchange surface of the end of the heat exchange tube bundle 10 close to the shell can also be fully utilized.

[0045] According to the shell and tube condenser 100 of the embodiment of the utility model, a plate 30 having a plurality of openings 301 is provided, and the openings 301 connect the side of the plate 30 facing the air inlet pipe 20 and the side facing the heat exchange tube bundle 10. Thus, on the one hand, the plate 30 can play a certain role in blocking the gas refrigerant, reducing the impact strength of the high-speed flowing gas refrigerant on the heat exchange tube bundle 10, thereby reducing the possibility of damage to the heat exchange tube bundle 10 and generating noise, which is conducive to extending the service life of the heat exchange tube bundle 10; on the other hand, the gas refrigerant can flow through the openings 301 to the side of the plate 30 facing the heat exchange tube bundle 10, so that the plate 30 is facing away from the air inlet pipe 20. 0 increases, so that part of the heat exchange tube bundle 10 located on the side of the plate 30 facing away from the air inlet pipe 20 can also contact the gas refrigerant for heat exchange, thereby making the utilization rate of the heat exchange area of ​​the heat exchange tube bundle 10 higher; in addition, by separating at least one side edge of the plate 30 circumferentially from the shell to form an open area, the flow velocity loss of the gas refrigerant flowing along the first direction F1 and / or the second direction F2 is small, and the gas refrigerant can more easily reach the end of the shell in the first direction F1 and / or the end of the shell in the second direction F2, so that the heat exchange surface of the heat exchange tube bundle 10 close to the end of the shell can also be fully utilized.

[0046] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the two side edges of the plate 30 in the first direction F1 are spaced apart from the inner side wall of the shell, and the two side edges of the plate 30 in the second direction F2 are connected to the inner side wall of the shell, and the second direction F2 is perpendicular to the first direction F1. The two side edges of the plate 30 in the second direction F2 are connected to the inner side wall of the shell, for example, the two side edges of the plate 30 in the second direction F2 are directly fixedly connected to the inner side wall of the shell, for example, by welding; or the two side edges of the plate 30 in the second direction F2 are directly or indirectly connected to the inner side wall of the shell, for example, by connecting plates or connecting members.

[0047] In some embodiments, the first direction F1 can be the axial direction of the shell, and the size of the shell in the first direction F1 is much larger than the size of the shell in the second direction F2. That is to say, the path for the gas refrigerant to move to the end of the shell in the first direction F1 is longer. Therefore, the two side edges of the plate 30 in the first direction F1 are separated from the inner wall to form an open area. The gas refrigerant has less flow velocity loss along the first direction F1, and it is easier for the gas refrigerant to reach the end of the shell in the first direction F1, so that the heat exchange area of ​​the heat exchange tube bundle 10 can be more fully utilized.

[0048] According to some embodiments of the present invention, the projection of the opening at one end of the intake pipe 20 along its normal direction on the plate 30 is a first projection area, and the distance between the multiple openings 301 in the first projection area is greater than the distance between the multiple openings 301 in the remaining areas of the plate 30.

[0049] That is, the first projection area is directly opposite to the opening of one end of the air inlet pipe 20 , and the flow velocity of the gas refrigerant flowing out of the air inlet pipe 20 toward the first projection area is fast. The arrangement density of the openings 301 in the first projection area is relatively low, so that the flow rate of the gas refrigerant flowing through the openings 301 in the first projection area to the side of the plate 30 facing away from the air inlet pipe 20 is small, so that the impact on the heat exchange tube bundle 10 on the side of the plate 30 facing away from the air inlet pipe 20 is small, thereby reducing the possibility or degree of vibration of the heat exchange tube bundle 10 due to impact; at the same time, the distance between the multiple openings 301 in the remaining areas of the plate 30 is relatively small, that is, the number of openings 301 per unit area in the remaining areas of the plate 30 is greater, so that some gas refrigerant with a lower speed and a movement direction not parallel to the normal direction of the plate 30 can flow through the openings 301 to the side of the plate 30 facing away from the air inlet pipe 20, so as to reduce the possibility of the gas refrigerant flowing directly to the end of the shell in large quantities, which is beneficial to improving the uniformity of the gas refrigerant in various parts of the heat exchange tube bundle 10.

[0050] Among them, the distance between two adjacent openings 301 among the multiple openings 301 in the first projection area may be equal or unequal, and the distance between two adjacent openings 301 among the multiple openings 301 in the remaining areas of the plate 30 may be equal or unequal.

[0051] According to some embodiments of the utility model, the projection of the opening of one end of the intake pipe 20 along its normal direction on the plate 30 is a first projection area, and the area of ​​the opening 301 located in the first projection area is smaller than the area of ​​the opening 301 in the remaining area of ​​the plate 30, wherein the area of ​​the opening 301 located in the first projection area refers to the area of ​​a single opening 301 among the multiple openings 301 in the first projection area, and the area of ​​the opening 301 in the remaining area of ​​the plate 30 refers to the area of ​​a single opening 301 among the multiple openings 301 in the remaining area of ​​the plate 30.

[0052] That is to say, the first projection area is open at one end portion facing the air inlet pipe 20, and the flow rate of the gas refrigerant flowing out of the air inlet pipe 20 to the first projection area is fast. The area of ​​the opening 301 facing the first projection area is small. In this way, the flow rate of the gas refrigerant flowing through the opening 301 in the first projection area to the side of the plate 30 facing away from the air inlet pipe 20 is small, and the impact of the gas refrigerant on the part of the heat exchange tube bundle 10 on the side of the plate 30 facing away from the air inlet pipe 20 is small, thereby reducing the possibility or degree of vibration of the heat exchange tube bundle 10 due to the impact; at the same time, the area of ​​the multiple openings 301 in the remaining areas of the plate 30 is large, so that more gas refrigerant can flow through the opening 301 to the side of the plate 30 facing away from the air inlet pipe 20, so as to reduce the possibility of the gas refrigerant flowing directly to the end of the shell in large quantities, which is beneficial to improving the uniformity of the gas refrigerant in various parts of the heat exchange tube bundle 10.

[0053] The areas of the plurality of openings 301 in the first projection area may be equal or unequal, and the areas of the openings 301 in the remaining areas of the plate 30 may be equal or unequal.

[0054] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, at least some of the multiple openings 301 are arranged along the third direction and the fourth direction, and the third direction and the fourth direction form a set angle, wherein the spacing between adjacent openings 301 is equal.

[0055] In some embodiments, at least some of the plurality of openings 301 are arranged along the third direction and the fourth direction, and the distance between the plurality of openings 301 arranged in a spaced relationship along the third direction is greater than the distance between the plurality of openings 301 arranged in a spaced relationship along the fourth direction. In some embodiments, at least some of the plurality of openings 301 are arranged along the third direction and the fourth direction, and the distance between the plurality of openings 301 arranged in a spaced relationship along the third direction is less than the distance between the plurality of openings 301 arranged in a spaced relationship along the fourth direction. All of these should be within the scope of protection of the present utility model.

[0056] Among them, the distances between the multiple openings 301 arranged along the third direction can be equal or unequal, and the distances between the multiple openings 301 arranged along the fourth direction can be equal or unequal. In practice, it can be designed according to needs to correspond to the gas refrigerant impacting the plate from different angles.

[0057] For example, one of the third direction or the fourth direction may coincide with the first direction F1; the other of the third direction and the fourth direction may coincide with the second direction F2; the third direction and the fourth direction may not coincide with the first direction F1 and the second direction F2, the third direction and the fourth direction may be perpendicular to each other, or the angle between the third direction and the fourth direction is 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10° or any value between any two values, or one of the third direction and the fourth direction is a circular direction, and the other of the third direction and the fourth direction is a linear direction. All of these should be within the protection scope of the present utility model.

[0058] In some embodiments, the opening 301 may be a circular hole (eg Figure 1 and Figure 2 As shown), square holes, strip holes, special-shaped holes, polygonal holes, etc., to meet the requirements of uniform flow of gas refrigerant. Among them, when the opening 301 is a round hole, the flow resistance of the gas refrigerant when flowing through the opening 301 is small.

[0059] According to some embodiments of the present invention, Figure 2 As shown, the distance between the two ends of the heat exchange tube bundle 10 connected to the shell in the first direction F1 is L0, and the size of the plate 30 in the first direction F1 is L1, 0.1≤L1 / L0≤0.4. After simulation verification, 0.1≤L1 / L0≤0.4, so that the size of the plate 30 in the first direction F1 is not too small to make the amount of gas refrigerant moving to the end of the shell in the first direction F1 too small, and the heat exchange area of ​​the heat exchange tube bundle 10 located at the two ends of the shell in the first direction F1 is not fully utilized; the size of the plate 30 in the first direction F1 is not too large to make a large amount of gas refrigerant move to the end of the shell in the first direction F1, and the heat exchange area of ​​the heat exchange tube bundle 10 located in the middle of the shell in the first direction F1 is not fully utilized. Therefore, by making 0.1≤L1 / L0≤0.4, the distribution uniformity of the gas refrigerant in the first direction F1 can be improved to improve the heat exchange efficiency of the shell and tube condenser 100. For example, L1 / L0 may be equal to 0.1, 0.2, 0.3 or 0.4 or any value between any two of these values.

[0060] According to some embodiments of the present invention, Figure 2As shown, the size of the plate 30 in the first direction F1 and the size of the plate 30 in the second direction F2 are both larger than the size of the opening at one end of the intake pipe 20. In this way, the plate 30 can play a better anti-impact effect, that is, the impact strength of the high-speed flowing gas refrigerant directly impacting the heat exchange tube bundle 10 is low. For example, the size of the plate 30 in the first direction F1 can be twice the size of the opening at one end of the intake pipe 20, can be three times the size of the opening at one end of the intake pipe 20, can be four times the size of the opening at one end of the intake pipe 20, can be five times the size of the opening at one end of the intake pipe 20, can be six times the size of the opening at one end of the intake pipe 20, and so on. The size of the plate 30 in the second direction F2 can be twice the size of the opening at one end of the intake pipe 20, three times the size of the opening at one end of the intake pipe 20, four times the size of the opening at one end of the intake pipe 20, five times the size of the opening at one end of the intake pipe 20, six times the size of the opening at one end of the intake pipe 20, and so on.

[0061] In some embodiments, the size of the plate 30 in the second direction F2 is greater than three times the size of the opening at one end of the intake pipe 20. The plate 30 is a flat plate, and the two side edges of the flat plate 30 in the second direction F2 are directly connected to the inner wall of the shell, so that the welding installation is more stable and convenient.

[0062] According to some embodiments of the utility model, the two ends of the shell in the first direction F1 are a first end and a second end, and the air intake pipe 20 is arranged at the end of the shell close to the first end. Since the compressor needs to be fixed on the top of the shell and tube condenser 100, the air intake pipe 20 is arranged close to the end of the shell.

[0063] According to some embodiments of the present invention, Figure 2 As shown, the projection of the opening of one end of the air inlet pipe 20 on the plate 30 along its normal direction is the first projection area; in the first direction F1, the part of the plate 30 located on the side of the center point of the first projection area close to the first end is the first part, and the part of the plate 30 located on the side of the center point of the first projection area close to the second end is the second part, and the size of the first part is smaller than the size of the second part. Here, since the air inlet pipe 20 is closer to the first end of the shell and farther away from the second end of the shell, the gas refrigerant is easier to move to the first end of the shell than to the second end. The utility model makes the size of the second part of the plate 30 larger than the size of the first part, thereby guiding the gas refrigerant to the second end of the shell as much as possible, so that the gas refrigerant is more evenly distributed in the first direction, and the heat exchange area of ​​the heat exchange tube bundle 10 is fully utilized.

[0064] According to some embodiments of the present invention, Figure 1As shown, the central axis direction of the air intake pipe 20 and the normal direction of the plate 30 form a set angle, and the set angle is greater than or equal to 0° and less than 90°. In other words, the central axis direction of the air intake pipe 20 and the normal direction of the plate 30 can be parallel or coincident, or the angle between the central axis direction of the air intake pipe 20 and the normal direction of the plate 30 is 10°, 20°, 30°, 40°, 50°, 60°, 70° or 80° or any value between any two of them, which should be within the protection scope of the present utility model. In practice, the angle between the central axis direction of the air intake pipe 20 and the normal direction of the plate 30 can be reasonably designed according to demand.

[0065] In some embodiments, the angle between the central axis direction of the intake pipe 20 and the normal direction of the plate 30 is less than 90 degrees, so as to further avoid the compressor when the compressor is larger in size.

[0066] According to some embodiments of the present invention, one end of the air inlet pipe 20 is located above the heat exchange tube bundle 10. In other words, the opening of one end of the air inlet pipe 20 is located above the heat exchange tube bundle 10, so that the gas refrigerant discharged from the air inlet pipe 20 will flow from top to bottom, so that the gas refrigerant can fully contact the heat exchange tube bundle 10, which is conducive to fully utilizing the heat exchange area of ​​the heat exchange tube bundle 10 and improving the heat exchange efficiency of the shell and tube condenser 100.

[0067] In some embodiments, one end face of the air inlet pipe 20 is located in the extension plane of the inner wall of the shell, that is, one end of the air inlet pipe 20 is not located in the internal space of the shell. In this way, the occupation of the internal space of the shell can be reduced, which is conducive to reducing the volume of the shell and tube condenser 100.

[0068] In some embodiments, a support plate 50 is provided in the shell, the support plate 50 is connected to the shell, and the heat exchange tubes 101 in the heat exchange tube bundle 10 are passed through the support plate 50. The support plate 50 is provided to support the heat exchange tubes 101, which is conducive to reducing the possibility of vibration and damage of the heat exchange tubes 101.

[0069] A second aspect of the utility model is to provide an air conditioning system.

[0070] The air conditioning system according to the embodiment of the second aspect of the utility model comprises the shell and tube condenser 100 according to any one of the embodiments of the first aspect of the utility model. Since the air conditioning system according to the embodiment of the second aspect of the utility model comprises the shell and tube condenser 100 according to any one of the embodiments of the first aspect of the utility model, the air conditioning system according to the embodiment of the second aspect of the utility model has at least the following advantages: higher energy utilization efficiency and better cooling and heating capabilities.

[0071] In some embodiments, the air-conditioning system is a large air-conditioning system. The shell and tube condenser 100 in the large air-conditioning system has a heat exchange tube bundle 10 with a length of more than 4-6m. When the shell and tube condenser 100 of the utility model is applied to the large air-conditioning system, the gas refrigerant is distributed more evenly along the first direction F1, thereby greatly improving the cooling / heating capacity of the air-conditioning system.

[0072] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A shell and tube condenser, characterized in that: include: A shell, wherein a heat exchange tube bundle is disposed in the shell, and at least one end of the heat exchange tube bundle in a first direction is connected to the shell; An air inlet pipe, one end of which is open toward the side of the heat exchange tube bundle, and the air inlet pipe is used to charge gas refrigerant into the shell to exchange heat with the heat exchange tube bundle; A plate member, wherein the plate member is disposed between an opening at one end of the intake pipe and a side surface of the heat exchange tube bundle, and is spaced apart from the opening at one end of the intake pipe. The plate member has a plurality of openings, and the openings connect a side of the plate member facing the intake pipe and a side facing the heat exchange tube bundle. At least one circumferential edge of the plate member is spaced apart from the shell to form an opening area.

2. The shell and tube condenser according to claim 1, characterized in that: Both side edges of the plate in the first direction are spaced apart from the inner side wall of the shell, and both side edges of the plate in the second direction are connected to the inner side wall of the shell, and the second direction is perpendicular to the first direction.

3. The shell and tube condenser according to claim 1, characterized in that: The projection of the opening at one end of the air inlet pipe on the plate along its normal direction is a first projection area, and the distance between the multiple openings in the first projection area is greater than the distance between the multiple openings in the remaining areas of the plate.

4. The shell and tube condenser according to claim 1, characterized in that: The projection of the opening at one end of the air inlet pipe on the plate along its normal direction is a first projection area, and the area of ​​the opening in the first projection area is smaller than the area of ​​the opening in the remaining area of ​​the plate.

5. The shell and tube condenser according to claim 1, characterized in that: At least part of the multiple openings are arranged along the third direction and the fourth direction, and the third direction and the fourth direction form a set angle, wherein the spacing between adjacent openings is equal; and / or the distance between the multiple openings arranged at intervals along the third direction is greater than or less than the distance between the multiple openings arranged at intervals along the fourth direction.

6. The shell and tube condenser according to any one of claims 1 to 5, characterized in that: The distance between the two ends of the heat exchange tube bundle connected to the shell in the first direction is L0, the size of the plate in the first direction is L1, and 0.1≤L1 / L0≤0.

4.

7. The shell and tube condenser according to claim 1, characterized in that: A size of the plate in the first direction and a size of the plate in the second direction are both larger than a size of an opening at one end of the air intake pipe.

8. The shell and tube condenser according to claim 1, characterized in that: The two ends of the shell in the first direction are the first end and the second end, the air intake pipe is arranged at the end of the shell close to the first end, and the projection of the opening of one end of the air intake pipe on the plate along its own normal direction is the first projection area; in the first direction, the part of the plate located on the side of the center point of the first projection area close to the first end is the first part, and the part of the plate located on the side of the center point of the first projection area close to the second end is the second part, and the size of the first part is smaller than the size of the second part.

9. The shell and tube condenser according to claim 1, characterized in that: A central axis direction of the air intake pipe forms a set angle with a normal direction of the plate, and the set angle is greater than or equal to 0° and less than 90°.

10. The shell and tube condenser according to claim 1, characterized in that: One end of the air inlet pipe is located above the heat exchange tube bundle.

11. An air conditioning system, characterized in that: It comprises a shell and tube condenser according to any one of claims 1 to 10.

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