Liquid distributor, evaporator and heat exchange equipment

Abstract

The utility model relates to the technical field of heat exchange equipment, and discloses a liquid distributor, an evaporator and heat exchange equipment. The liquid distributor comprises a first liquid distribution plate, a second liquid distribution plate, a first liquid distribution plate and a second liquid distribution plate, the second liquid distribution plate is arranged on the first liquid distribution plate in parallel, the second liquid distribution plate and the first liquid distribution plate can slide relatively, and the second liquid distribution plate comprises second liquid distribution holes; the output end of the driving assembly is connected with the first liquid distribution plate or the second liquid distribution plate; wherein the driving assembly is used for driving one of the first liquid distribution plate and the second liquid distribution plate to translate relative to the other liquid distribution plate, so that the through area between the first liquid distribution holes and the second liquid distribution holes is changed. According to the liquid distributor, the liquid uniformizing effect of the liquid distributor under the condition of partial load or low load of the evaporator can be improved, and therefore the heat exchange efficiency of the evaporator and the heat exchanger is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchange equipment, for example, to a liquid distributor, an evaporator and a heat exchange equipment. Background Art

[0002] Falling film evaporator is a common heat exchange equipment. Its working principle is that the liquid passes through the liquid equalizer of the falling film evaporator and is evenly distributed on the heat exchange tube to form a thin film, and then evaporates or condenses. When designing a traditional falling film evaporator, the structure and parameters of the liquid equalizer are usually determined based on the nominal operating conditions. The nominal operating conditions refer to the set parameters of the equipment under normal working conditions, such as flow rate, temperature, pressure, etc. When operating at full load, that is, when the flow rate handled by the falling film evaporator meets the set flow rate, the liquid equalizer can effectively distribute the liquid evenly to each heat exchange tube, thereby ensuring a good heat exchange effect.

[0003] However, in actual operation, the falling film evaporator may face partial load or even low load, that is, the flow rate processed by the falling film evaporator is less than the set flow rate. In this case, the heat exchange tubes close to the refrigerant inlet will be allocated more liquid, while the heat exchange tubes far from the refrigerant inlet will receive less liquid, resulting in uneven liquid distribution, which in turn reduces the utilization rate of the heat exchange tubes and affects the heat exchange efficiency of the falling film evaporator.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide a liquid distributor, an evaporator and a heat exchange device, which can improve the liquid distribution effect of the liquid distributor when the evaporator is partially loaded or under low load, thereby improving the heat exchange efficiency of the evaporator and the heat exchanger.

[0007] In some embodiments, a liquid distributor is provided, comprising: a first liquid distribution plate, comprising a first liquid distribution hole; a second liquid distribution plate, arranged parallel to the first liquid distribution plate, the second liquid distribution plate and the first liquid distribution plate being able to slide relative to each other, the second liquid distribution plate comprising a second liquid distribution hole; a driving component, the output end of the driving component being connected to the first liquid distribution plate or the second liquid distribution plate; wherein the driving component is used to drive one of the first liquid distribution plate and the second liquid distribution plate to translate relative to the other, so as to change the through area between the first liquid distribution hole and the second liquid distribution hole.

[0008] The liquid distributor provided in the embodiment of the present disclosure can, when the refrigerant flow processed by the evaporator is less than the set flow, drive one of the first liquid distribution plate and the second liquid distribution plate to translate relative to the other through the driving component, thereby reducing the through area between the first liquid distribution hole and the second liquid distribution hole, thereby reducing the refrigerant flow passing through the first liquid distribution hole and the second liquid distribution hole. By reducing the refrigerant flow passing through the first liquid distribution hole and the second liquid distribution hole, it is avoided that the refrigerant is distributed to the heat exchange tube through the liquid distribution holes close to the refrigerant inlet, thereby improving the liquid distribution effect of the liquid distributor. In the case where the evaporator and the heat exchange equipment include the above-mentioned liquid distributor, by improving the liquid distribution effect of the liquid distributor, the utilization rate of the heat exchange tube is improved, thereby improving the heat exchange efficiency of the evaporator and the heat exchange equipment.

[0009] Optionally, the second liquid distribution plate also includes: a plate body; a third liquid distribution hole, and the third liquid distribution hole and the second liquid distribution hole are alternately arranged on the plate body; wherein, when the driving component drives the first liquid distribution plate or the second liquid distribution plate to the first position, the first liquid distribution hole and the second liquid distribution hole are interconnected; when the driving component drives the first liquid distribution plate or the second liquid distribution plate to the second position, the first liquid distribution hole and the third liquid distribution hole are interconnected.

[0010] In this embodiment, the third liquid distribution hole is introduced, and the second liquid distribution hole and the third liquid distribution hole are alternately arranged on the plate body, so that the liquid distributor can achieve different liquid distribution modes under different working conditions. Since the second liquid distribution hole and the third liquid distribution hole are alternately arranged, by adjusting the position of the first liquid distribution plate or the second liquid distribution plate, the switching of different liquid distribution modes can be achieved, thereby meeting different working requirements, thereby further improving the adaptability, functionality and flexibility of the liquid distributor, and reducing the operation complexity of the liquid distributor.

[0011] Optionally, the cross-sectional area of ​​the first liquid distribution hole is greater than the cross-sectional area of ​​the third liquid distribution hole; the cross-sectional area of ​​the second liquid distribution hole is greater than the cross-sectional area of ​​the third liquid distribution hole; the cross-sectional area of ​​the first liquid distribution hole is equal to the cross-sectional area of ​​the second liquid distribution hole.

[0012] In this embodiment, the cross-sectional area of ​​the first liquid distribution hole is defined to be greater than the cross-sectional area of ​​the third liquid distribution hole, and the cross-sectional area of ​​the second liquid distribution hole is defined to be greater than the cross-sectional area of ​​the third liquid distribution hole, and the cross-sectional area of ​​the first liquid distribution hole is defined to be equal to the cross-sectional area of ​​the second liquid distribution hole. This allows the liquid flow rate flowing through the first channel to be greater than the liquid flow rate flowing through the second channel when the driving component drives the first liquid distribution plate or the second liquid distribution plate to the second position to form the second channel (the first liquid distribution hole and the third liquid distribution hole are connected), thereby achieving the definition of two channel modes.

[0013] Optionally, there are multiple first liquid distribution holes, and the multiple first liquid distribution holes are evenly spaced on the first liquid distribution plate; there are multiple second liquid distribution holes, and the multiple second liquid distribution holes are evenly spaced on the second liquid distribution plate; wherein the spacing between the multiple first liquid distribution holes is the same as the spacing between the multiple second liquid distribution holes.

[0014] In this embodiment, the number of the second liquid distribution holes of the first liquid distribution holes is increased to improve the liquid processing capacity of the liquid distributor, and the liquid distribution efficiency and distribution uniformity of the liquid distributor are improved. The liquid distribution uniformity of the liquid distributor is improved by distributing a plurality of first liquid distribution holes at equal intervals on the first liquid distribution plate and a plurality of second liquid distribution holes at equal intervals on the second liquid distribution plate.

[0015] Optionally, the driving assembly includes: a transmission assembly; and a first connecting rod, wherein opposite ends of the first connecting rod are respectively connected to an output end of the transmission assembly and the first liquid distribution plate or the second liquid distribution plate.

[0016] In this embodiment, the transmission assembly serves as a power source of the driving assembly, providing power for the movement of the first liquid distribution plate or the second liquid distribution plate. The first connecting rod is used to connect the output end of the transmission assembly and the first liquid distribution plate or the second liquid distribution plate, so as to transmit the power of the transmission assembly to the first liquid distribution plate or the second liquid distribution plate, so that one of the first liquid distribution plate and the second liquid distribution plate can be translated relative to the other, thereby realizing the switching control of different liquid distribution modes of the liquid distributor.

[0017] Optionally, the transmission assembly includes: a gear; a rack, which is arranged on the gear, and a first connecting rod is connected to the rack; wherein the driving gear rotates to drive the rack to move, thereby driving the first connecting rod to move.

[0018] In this embodiment, the matching sides of the rack and the gear are provided with teeth, and the teeth mesh with the gear for transmission. The transmission assembly combination of the gear and the rack has high transmission stability and accuracy, so as to ensure that the rotation of the gear can stably drive the rack to move, drive the first connecting rod to move, and then drive one of the first liquid distribution plate and the second liquid distribution plate to translate relative to the other, thereby improving the stability of the first liquid distribution plate or the second liquid distribution plate during the translation process.

[0019] Optionally, the first connecting rod includes: a first support rod, which is arranged parallel to the first liquid distribution plate, and one end of the first support rod is connected to the first liquid distribution plate or the second liquid distribution plate; a second support rod, and the opposite ends of the second support rod are respectively connected to the other end of the first support rod and the output end of the transmission assembly; wherein the second support rod forms a preset angle with the first support rod.

[0020] In this embodiment, it is defined that the first connecting rod includes a first support rod and a second support rod, and the second support rod forms a preset angle with the first support rod, so as to drive the first liquid distribution plate or the second liquid distribution plate more flexibly and stably.

[0021] Optionally, the driving assembly includes a telescopic motor, and an output end of the telescopic motor is connected to the first liquid distribution plate or the second liquid distribution plate.

[0022] The output end of the telescopic motor can be extended and retracted, thereby directly driving the components connected thereto to perform linear motion. In this embodiment, the telescopic motor is used as a driving component. When the telescopic motor is working, its output end drives the first liquid distribution plate or the second liquid distribution plate to perform translational motion by extending and retracting. Since the telescopic motor has the characteristic of fast response speed, using the telescopic motor as a driving component simplifies the improvement of the overall structure of the liquid distributor, reduces the mode switching rate of the liquid distributor, and improves the reliability of the liquid distributor.

[0023] Optionally, the driving assembly includes a rotating motor and a second connecting rod, and opposite ends of the second connecting rod are respectively connected to the output end of the rotating motor and the first liquid distribution plate or the second liquid distribution plate.

[0024] In this embodiment, the rotary motor is used to provide power. Since the rotary motor has the advantages of simple structure, stable operation, and easy control, the combination of the rotary motor and the second connecting rod driving assembly can simplify the structure of the liquid distributor and improve the reliability of the liquid distributor.

[0025] In some embodiments, an evaporator is provided, comprising: a shell, comprising an installation cavity and a refrigerant inlet, the refrigerant inlet being connected to the installation cavity; a liquid distributor as described in the above embodiment, arranged in the installation cavity, and along the height direction of the shell, the position of the refrigerant inlet is higher than the position of the liquid distributor; a heat exchange tube, arranged in the installation cavity, and along the height direction of the shell, the position of the heat exchange tube is lower than the position of the liquid distributor.

[0026] The evaporator provided in the embodiment of the present disclosure includes a liquid distributor as described in the above embodiment. The liquid distributor is used to evenly distribute the liquid refrigerant to the surface of the heat exchange tube so as to achieve a more efficient evaporation process. Since the liquid distributor described in the above embodiment has a good liquid equalization effect even when the refrigerant flow rate is less than the set flow rate, the uniformity of the refrigerant distribution is improved in the process of distributing the liquid refrigerant to the surface of the heat exchange tube by using the liquid distributor, thereby improving the utilization rate of the heat exchange tube and further improving the heat exchange efficiency of the evaporator.

[0027] In some embodiments, a heat exchange device is provided, comprising: an evaporator as described in the above embodiments.

[0028] The heat exchange device provided in the embodiment of the present disclosure includes the evaporator as described in the above embodiment, and the heat exchange efficiency of the heat exchange device is improved by improving the heat exchange efficiency of the evaporator.

[0029] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0031] Figure 1 is a schematic diagram of the structure of a liquid distributor provided in an embodiment of the present disclosure;

[0032] Figure 2 It is a schematic structural diagram of the first liquid distribution plate and the second liquid distribution plate when the driving assembly provided in an embodiment of the present disclosure drives the first liquid distribution plate or the second liquid distribution plate to the first position and the first liquid distribution hole and the second liquid distribution hole are connected;

[0033] Figure 3 It is a schematic structural diagram of the first liquid distribution plate and the second liquid distribution plate when the driving assembly provided in an embodiment of the present disclosure drives the first liquid distribution plate or the second liquid distribution plate to the second position and the first liquid distribution hole and the third liquid distribution hole are connected;

[0034] Figure 4 is a schematic structural diagram of an evaporator provided in an embodiment of the present disclosure;

[0035] Figure 5 It is a schematic diagram of the structure of the heat exchange device provided in the embodiment of the present disclosure.

[0036] Reference numerals:

[0037] 1 liquid dispenser;

[0038] 10 first liquid distribution plate; 110 first liquid distribution hole;

[0039] 20 second liquid distribution plate; 210 plate body; 220 second liquid distribution hole; 230 third liquid distribution hole;

[0040] 30 driving assembly; 310 transmission assembly; 312 gear; 314 rack; 320 first connecting rod; 322 first support rod; 324 second support rod;

[0041] 2 evaporator;

[0042] 40 shell; 410 installation cavity; 420 refrigerant inlet;

[0043] 50 heat exchange tubes;

[0044] 3 heat exchange equipment; 4 compressor; 5 condenser. DETAILED DESCRIPTION

[0045] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0046] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0047] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0048] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0049] Unless otherwise stated, the term "plurality" means two or more.

[0050] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0051] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A, B, A and B.

[0052] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0053] In some embodiments, in combination Figures 1 to 3 As shown ( Figure 2 and Figure 3 The dotted line in the middle represents the partial structure of the second liquid distributing plate 20 covered by the first liquid distributing plate 10), and a liquid distributing device 1 is provided, including a first liquid distributing plate 10, a second liquid distributing plate 20 and a driving component 30. The first liquid distributing plate 10 includes a first liquid distributing hole 110. The second liquid distributing plate 20 is arranged in parallel with the first liquid distributing plate 10, and the second liquid distributing plate 20 and the first liquid distributing plate 10 can slide relative to each other, and the second liquid distributing plate 20 includes a second liquid distributing hole 220. The output end of the driving component 30 is connected to the first liquid distributing plate 10 or the second liquid distributing plate 20. Among them, the driving component 30 is used to drive one of the first liquid distributing plate 10 and the second liquid distributing plate 20 to translate relative to the other, so as to change the through area between the first liquid distributing hole 110 and the second liquid distributing hole 220.

[0054] Specifically, combined Figure 1 As shown, when the output end of the driving component 30 is connected to the first liquid distribution plate 10, the driving component 30 is used to drive the first liquid distribution plate 10 to translate relative to the second liquid distribution plate 20 to change the through area between the first liquid distribution hole 110 and the second liquid distribution hole 220.

[0055] Specifically, when the output end of the driving component 30 is connected to the second liquid distribution plate 20 , the driving component 30 is used to drive the second liquid distribution plate 20 to translate relative to the first liquid distribution plate 10 to change the through area between the first liquid distribution hole 110 and the second liquid distribution hole 220 .

[0056] The liquid distributor 1 provided by the embodiment of the present disclosure can drive one of the first liquid distribution plate 10 and the second liquid distribution plate 20 to translate relative to the other through the driving component 30 when the refrigerant flow rate being processed is less than the set flow rate, thereby reducing the through area between the first liquid distribution hole 110 and the second liquid distribution hole 220, thereby reducing the refrigerant flow rate passing through the first liquid distribution hole 110 and the second liquid distribution hole 220. By reducing the refrigerant flow rate passing through the first liquid distribution hole 110 and the second liquid distribution hole 220, it is avoided that the refrigerant is distributed to the heat exchange tube through the liquid distribution holes close to the refrigerant inlet, thereby improving the liquid distribution effect of the liquid distributor 1. In the case where the evaporator and the heat exchange equipment include the above-mentioned liquid distributor 1, by improving the liquid distribution effect of the liquid distributor 1, the utilization rate of the heat exchange tube is improved, thereby improving the heat exchange efficiency of the evaporator and the heat exchange equipment.

[0057] Furthermore, the liquid distributor 1 provided in the embodiment of the present disclosure can also process a refrigerant flow greater than or equal to a set flow, by driving one of the first liquid distribution plate 10 and the second liquid distribution plate 20 to translate relative to the other through the driving component 30, thereby increasing the through area between the first liquid distribution hole 110 and the second liquid distribution hole 220, thereby increasing the refrigerant flow through the first liquid distribution hole 110 and the second liquid distribution hole 220. By increasing the refrigerant flow through the first liquid distribution hole 110 and the second liquid distribution hole 220, the refrigerant distribution efficiency of the liquid distributor 1 is improved. In the case where the evaporator and the heat exchange device include the above-mentioned liquid distributor 1, by improving the refrigerant distribution efficiency of the liquid distributor 1, the heat exchange efficiency of the heat exchange tube, as well as the evaporator and the heat exchange device is improved.

[0058] In summary, the liquid distributor 1 provided in the present invention utilizes a movable liquid distribution plate and a driving assembly 30 to adjust the through area between the liquid distribution holes, thereby achieving effective control of liquid distribution, improving the uniformity of liquid distribution, and allowing flexible adjustment of liquid distribution and flow rate within a certain range to meet different working conditions and requirements, thereby improving the adaptability and flexibility of the liquid distributor 1.

[0059] Optionally, combined Figures 1 to 3 As shown, the second liquid distribution plate 20 further includes a plate body 210 and a third liquid distribution hole 230. The third liquid distribution hole 230 and the second liquid distribution hole 220 are alternately arranged on the plate body 210. When the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the first position, the first liquid distribution hole 110 and the second liquid distribution hole 220 are interlinked. When the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the second position, the first liquid distribution hole 110 and the third liquid distribution hole 230 are interlinked.

[0060] Specifically, when the output end of the driving assembly 30 is connected to the first liquid distribution plate 10, when the driving assembly 30 drives the first liquid distribution plate 10 to the first position, the first liquid distribution hole 110 and the second liquid distribution hole 220 are connected. When the driving assembly 30 drives the first liquid distribution plate 10 to the second position, the first liquid distribution hole 110 and the third liquid distribution hole 230 are connected.

[0061] Specifically, when the output end of the driving assembly 30 is connected to the second liquid distribution plate 20, when the driving assembly 30 drives the second liquid distribution plate 20 to the first position, the first liquid distribution hole 110 and the second liquid distribution hole 220 are connected. When the driving assembly 30 drives the second liquid distribution plate 20 to the second position, the first liquid distribution hole 110 and the third liquid distribution hole 230 are connected.

[0062] In this embodiment, the third liquid distribution hole 230 is introduced, and the second liquid distribution hole 220 and the third liquid distribution hole 230 are alternately arranged on the plate body 210, so that the liquid distributor 1 can achieve different liquid distribution modes under different working conditions. Specifically, when the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the first position, the first liquid distribution hole 110 and the second liquid distribution hole 220 are connected to form a first channel, and the liquid is evenly distributed to the target area through the first channel (the first liquid distribution hole 110 and the second liquid distribution hole 220). When the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the second position, the first liquid distribution hole 110 and the third liquid distribution hole 230 are connected to form a second channel, and the liquid is evenly distributed to the target area through the second channel (the first liquid distribution hole 110 and the third liquid distribution hole 230). Since the second liquid distribution holes 220 and the third liquid distribution holes 230 are arranged alternately at intervals, the switching of the two channel modes (the first channel and the second channel) can be achieved by adjusting the position of the first liquid distribution plate 10 or the second liquid distribution plate 20 to meet different working requirements, thereby further improving the adaptability, functionality and flexibility of the liquid distributor 1, while reducing the operational complexity of the liquid distributor 1.

[0063] It should be noted that, in the first position, as long as the first liquid distribution hole 110 and the second liquid distribution hole 220 are interconnected; in the second position, as long as the first liquid distribution hole 110 and the third liquid distribution hole 230 are interconnected, the present application does not limit whether the specific driving mechanism drives the first liquid distribution plate 10 or the second liquid distribution plate 20.

[0064] Optionally, combined Figure 3 As shown, the cross-sectional area of ​​the first liquid distribution hole 110 is greater than the cross-sectional area of ​​the third liquid distribution hole 230. The cross-sectional area of ​​the second liquid distribution hole 220 is greater than the cross-sectional area of ​​the third liquid distribution hole 230. The cross-sectional area of ​​the first liquid distribution hole 110 is equal to the cross-sectional area of ​​the second liquid distribution hole 220.

[0065] In this embodiment, the cross-sectional area of ​​the first liquid distribution hole 110 is defined as being greater than the cross-sectional area of ​​the third liquid distribution hole 230, and the cross-sectional area of ​​the second liquid distribution hole 220 is defined as being greater than the cross-sectional area of ​​the third liquid distribution hole 230, and the cross-sectional area of ​​the first liquid distribution hole 110 is defined as being equal to the cross-sectional area of ​​the second liquid distribution hole 220. When the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the first position to form the first channel (the first liquid distribution hole 110 and the second liquid distribution hole 220 are interlinked), the liquid flow rate flowing through the first channel is greater than the liquid flow rate flowing through the second channel when the driving component 30 drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to the second position to form the second channel (the first liquid distribution hole 110 and the third liquid distribution hole 230 are interlinked), thereby defining two channel modes. When the refrigerant flow rate to be processed is less than the set flow rate, the driving component 30 can drive one of the first liquid distribution plate 10 and the second liquid distribution plate 20 to translate relative to the other to switch to the second channel. When the processed refrigerant flow rate is greater than or equal to the set flow rate, the driving component 30 can be used to drive one of the first liquid distribution plate 10 and the second liquid distribution plate 20 to translate relative to the other and switch to the first channel to meet different working conditions and improve the uniformity of refrigerant distribution under different working conditions.

[0066] Optionally, combined Figure 2 and Figure 3 As shown, there are multiple first liquid distribution holes 110, and the multiple first liquid distribution holes 110 are evenly spaced and distributed on the first liquid distribution plate 10. There are multiple second liquid distribution holes 220, and the multiple second liquid distribution holes 220 are evenly spaced and distributed on the second liquid distribution plate 20. The spacing between the multiple first liquid distribution holes 110 is the same as the spacing between the multiple second liquid distribution holes 220.

[0067] In this embodiment, the number of the second liquid distribution holes 220 of the first liquid distribution holes 110 is increased to improve the liquid processing capacity of the liquid distributor 1, and to improve the liquid distribution efficiency and distribution uniformity of the liquid distributor 1. Specifically, the second liquid distribution holes 220 of the multiple first liquid distribution holes 110 work simultaneously to meet the needs of larger flow and rapid distribution, improve the liquid distribution efficiency of the liquid distributor 1, and enhance its ability to handle complex liquid distribution. The multiple first liquid distribution holes 110 are evenly spaced and distributed on the first liquid distribution plate 10, and the multiple second liquid distribution holes 220 are evenly spaced and distributed on the second liquid distribution plate 20, so as to improve the liquid distribution uniformity of the liquid distributor 1.

[0068] Optionally, combined Figure 3 As shown, the number of the third liquid distribution holes 230 is multiple, and the multiple third liquid distribution holes 230 are evenly spaced and distributed on the second liquid distribution plate 20. The multiple third liquid distribution holes 230 and the multiple second liquid distribution holes 220 are alternately arranged on the plate body 210. The spacing between the multiple third liquid distribution holes 230 is the same as the spacing between the multiple first liquid distribution holes 110.

[0069] In this embodiment, the number of third liquid distribution holes 230 is increased to improve the liquid processing capacity of the liquid distributor 1 in the second channel mode, and to improve the liquid distribution efficiency and uniformity of the liquid distributor 1. Specifically, in the second channel mode, the third liquid distribution holes 230 of the plurality of first liquid distribution holes 110 work simultaneously to achieve rapid liquid distribution, improve the liquid distribution efficiency of the liquid distributor 1, and enhance its ability to handle complex liquid distribution. The plurality of first liquid distribution holes 110 are evenly spaced and distributed on the first liquid distribution plate 10, and the plurality of third liquid distribution holes 230 are evenly spaced and distributed on the second liquid distribution plate 20, to improve the liquid distribution uniformity of the liquid distributor 1.

[0070] It should be noted that the specific number, shape and size of the first liquid distribution hole 110, the second liquid distribution hole 220 and the third liquid distribution hole 230 need to be specifically set by technical personnel according to actual equipment and are not limited here.

[0071] Optionally, combined Figure 1 As shown, the driving assembly 30 includes a transmission assembly 310 and a first connecting rod 320. The opposite ends of the first connecting rod 320 are connected to the output end of the transmission assembly 310 and the first liquid distribution plate 10 or the second liquid distribution plate 20 respectively.

[0072] Specifically, when the output end of the driving assembly 30 is connected to the first liquid distribution plate 10 , the opposite ends of the first connecting rod 320 are connected to the output end of the transmission assembly 310 and the first liquid distribution plate 10 , respectively.

[0073] Specifically, when the output end of the driving assembly 30 is connected to the second liquid distribution plate 20 , the opposite ends of the first connecting rod 320 are connected to the output end of the transmission assembly 310 and the second liquid distribution plate 20 , respectively.

[0074] In this embodiment, the transmission assembly 310 serves as a power source for the driving assembly 30, and provides power for the movement of the first liquid distribution plate 10 or the second liquid distribution plate 20. The first connecting rod 320 is used to connect the output end of the transmission assembly 310 and the first liquid distribution plate 10 or the second liquid distribution plate 20, so as to transmit the power of the transmission assembly 310 to the first liquid distribution plate 10 or the second liquid distribution plate 20, so that one of the first liquid distribution plate 10 and the second liquid distribution plate 20 can be translated relative to the other, thereby realizing the mode switching control of the liquid distributor 1.

[0075] Optionally, combined Figure 1 As shown, the transmission assembly 310 includes a gear 312 and a rack 314. The rack 314 is disposed on the gear 312, and the first connecting rod 320 is connected to the rack 314. The driving gear 312 rotates to drive the rack 314 to move, thereby driving the first connecting rod 320 to move.

[0076] In this embodiment, the matching sides of the rack 314 and the gear 312 are provided with teeth, and the teeth are meshed with the gear 312 for transmission. During the rotation of the gear 312, due to the meshing relationship between the gear 312 and the rack 314, the rack 314 moves along its length direction. The first connecting rod 320 is connected to the rack 314, so when the rack 314 moves, the first connecting rod 320 will also move accordingly. The combination form of the transmission assembly 310 of the gear 312 and the rack 314 has high transmission stability and accuracy, so as to ensure that the rotation of the gear 312 can stably drive the rack 314 to move, drive the first connecting rod 320 to move, and then drive one of the first liquid distribution plate 10 and the second liquid distribution plate 20 to translate relative to the other, thereby improving the stability of the first liquid distribution plate 10 or the second liquid distribution plate 20 during the translation process.

[0077] Optionally, combined Figure 1 As shown, the first connecting rod 320 includes a first support rod 322 and a second support rod 324. The first support rod 322 is arranged parallel to the first liquid distribution plate 10, and one end of the first support rod 322 is connected to the first liquid distribution plate 10 or the second liquid distribution plate 20. The opposite ends of the second support rod 324 are respectively connected to the other end of the first support rod 322 and the output end of the transmission assembly 310. The second support rod 324 and the first support rod 322 form a preset angle.

[0078] Specifically, when the output end of the driving assembly 30 is connected to the first liquid distribution plate 10, the first support rod 322 is arranged in parallel with the first liquid distribution plate 10, and one end of the first support rod 322 is connected to the first liquid distribution plate 10. The opposite ends of the second support rod 324 are respectively connected to the other end of the first support rod 322 and the output end of the transmission assembly 310.

[0079] Specifically, when the output end of the driving assembly 30 is connected to the second liquid distribution plate 20, the first support rod 322 is arranged in parallel with the first liquid distribution plate 10, and one end of the first support rod 322 is connected to the second liquid distribution plate 20. The opposite ends of the second support rod 324 are respectively connected to the other end of the first support rod 322 and the output end of the transmission assembly 310.

[0080] In this embodiment, it is defined that the first connecting rod 320 includes a first support rod 322 and a second support rod 324, and the second support rod 324 is at a preset angle with the first support rod 322, so as to drive the first liquid distribution plate 10 or the second liquid distribution plate 20 more flexibly and stably. Specifically, the first support rod 322 is arranged in parallel with the first liquid distribution plate 10, and one end of the first support rod 322 is connected to the first liquid distribution plate 10 or the second liquid distribution plate 20, so that when the first support rod 322 moves, it can drive the first liquid distribution plate 10 or the second liquid distribution plate 20 to perform translational motion. The opposite ends of the second support rod 324 are respectively connected to the other end of the first support rod 322 and the output end of the transmission assembly 310 to form a lever structure. The driving force generated by the output end of the transmission assembly 310 can be transmitted to the first liquid distribution plate 10 or the second liquid distribution plate 20 through the lever structure, so as to realize the driving of the first liquid distribution plate 10 or the second liquid distribution plate 20.

[0081] Optionally, combined Figure 1 As shown, the preset angle between the second support rod 324 and the first support rod 322 is θ, 30°≤θ≤120°.

[0082] In this embodiment, a lever structure is formed between the second support rod 324 and the first support rod 322, and the second support rod 324 and the first support rod 322 form a preset angle θ. If θ is too small, the transmission assembly 310 and the first connecting rod 320 will be subjected to greater stress during the process of driving the first liquid distribution plate 10 or the second liquid distribution plate 20, increasing the risk of damage to the driving assembly 30. If θ is too large, the lever ratio between the second support rod 324 and the first support rod 322 will become smaller, so that the transmission assembly 310 must provide a greater driving force to drive the first liquid distribution plate 10 or the second liquid distribution plate 20 to perform translational motion, which will increase the load and energy consumption of the transmission assembly 310, thereby reducing the liquid distribution efficiency of the liquid distributor 1. In this embodiment, 30°≤θ≤120° is defined to optimize the preset angle θ between the second support rod 324 and the first support rod 322, ensuring stable driving of the transmission assembly 310 while avoiding excessive stress.

[0083] Exemplarily, the value of θ is 30°, 60°, 90°, and 120°.

[0084] Optionally, the driving assembly 30 includes a telescopic motor, and an output end of the telescopic motor is connected to the first liquid distribution plate 10 or the second liquid distribution plate 20 .

[0085] Specifically, when the output end of the driving assembly 30 is connected to the first liquid distribution plate 10 , the output end of the telescopic motor is connected to the first liquid distribution plate 10 .

[0086] Specifically, when the output end of the driving assembly 30 is connected to the second liquid distribution plate 20 , the output end of the telescopic motor is connected to the second liquid distribution plate 20 .

[0087] The output end of the telescopic motor can be extended and retracted, thereby directly driving the components connected thereto to perform linear motion. In this embodiment, the telescopic motor is used as the driving component 30, and the output end of the telescopic motor is directly connected to the first liquid distribution plate 10 or the second liquid distribution plate 20. When the telescopic motor is working, its output end drives the first liquid distribution plate 10 or the second liquid distribution plate 20 to perform translational motion by extending and retracting. Since the telescopic motor has the characteristic of fast response speed, using the telescopic motor as the driving component 30 simplifies the improvement of the overall structure of the liquid distributor 1, reduces the mode switching rate of the liquid distributor 1, and improves the reliability of the liquid distributor 1.

[0088] Optionally, the driving assembly 30 includes a rotary motor and a second connecting rod. The opposite ends of the second connecting rod are connected to the output end of the rotary motor and the first liquid distribution plate 10 or the second liquid distribution plate 20, respectively.

[0089] Specifically, when the output end of the driving assembly 30 is connected to the first liquid distribution plate 10 , the opposite ends of the second connecting rod are connected to the output end of the rotating motor and the first liquid distribution plate 10 , respectively.

[0090] Specifically, when the output end of the driving assembly 30 is connected to the second liquid distribution plate 20 , the opposite ends of the second connecting rod are connected to the output end of the rotating motor and the second liquid distribution plate 20 , respectively.

[0091] In this embodiment, a rotary motor is used to provide power. When the rotary motor is working, its output end will perform a rotational motion. The opposite ends of the second connecting rod are respectively connected to the output end of the rotary motor and the first liquid distribution plate 10 or the second liquid distribution plate 20, and the second connecting rod is used to convert the rotary motion of the rotary motor into the translational motion of the first liquid distribution plate 10 or the second liquid distribution plate 20, thereby realizing the translational drive of the first liquid distribution plate 10 or the second liquid distribution plate 20. Since the rotary motor has the advantages of simple structure, stable operation, and easy control, the combination of the rotary motor and the driving assembly 30 of the second connecting rod can simplify the structure of the liquid distributor 1 and improve the reliability of the liquid distributor 1.

[0092] Optionally, the second connecting rod includes a third supporting rod and a fourth supporting rod. The third supporting rod is arranged in parallel with the first liquid distribution plate 10, and one end of the third supporting rod is connected to the first liquid distribution plate 10 or the second liquid distribution plate 20. The opposite ends of the fourth supporting rod are respectively connected to the other end of the third supporting rod and the output end of the rotating motor. The third supporting rod and the fourth supporting rod are rotatably connected, and the rotating motor drives the fourth supporting rod to rotate, thereby driving the third supporting rod to move.

[0093] In this embodiment, it is defined that the second connecting rod includes a third support rod and a fourth support rod, and the third support rod and the fourth support rod are rotationally connected, so as to realize driving the first liquid distribution plate 10 or the second liquid distribution plate 20 to move by means of rotational connection. Specifically, the third support rod is arranged in parallel with the first liquid distribution plate 10, and one end thereof is connected to the first liquid distribution plate 10 or the second liquid distribution plate 20, so that during the movement of the third support rod, the first liquid distribution plate 10 or the second liquid distribution plate 20 can be driven to perform translational motion. The opposite ends of the fourth support rod are respectively connected to the other end of the third support rod and the output end of the rotating motor to form a rotational connection structure. In the process of the rotating motor driving the fourth support rod to rotate, the third support rod is driven to perform translational motion through the rotational connection, thereby realizing driving the first liquid distribution plate 10 or the second liquid distribution plate 20 to move.

[0094] In some embodiments, in combination Figure 4 As shown, an evaporator 2 is provided, comprising a shell 40, a liquid distributor 1 as described in the above embodiment, and a heat exchange tube 50. The shell 40 comprises an installation cavity 410 and a refrigerant inlet 420, and the refrigerant inlet 420 is connected with the installation cavity 410. The liquid distributor 1 as described in the above embodiment is arranged in the installation cavity 410, and along the height direction of the shell 40, the position of the refrigerant inlet 420 is higher than the position of the liquid distributor 1. The heat exchange tube 50 is arranged in the installation cavity 410, and along the height direction of the shell 40, the position of the heat exchange tube 50 is lower than the position of the liquid distributor 1.

[0095] The evaporator 2 provided in the embodiment of the present disclosure includes the liquid distributor 1 as described in the above embodiment. The liquid distributor 1 is used to evenly distribute the liquid refrigerant to the surface of the heat exchange tube 50 so as to achieve a more efficient evaporation process. Since the liquid distributor 1 described in the above embodiment has a good liquid equalization effect even when the refrigerant flow rate is less than the set flow rate, in the process of using the liquid distributor 1 to distribute the liquid refrigerant to the surface of the heat exchange tube 50, the uniformity of the distribution of the refrigerant is improved, thereby improving the utilization rate of the heat exchange tube 50, and then improving the heat exchange efficiency of the evaporator 2.

[0096] In some embodiments, in combination Figure 5 As shown, a heat exchange device 3 is provided, comprising the evaporator 2 as described in the above embodiment.

[0097] The heat exchange device 3 provided in the embodiment of the present disclosure includes the evaporator 2 as described in the above embodiment, and the heat exchange efficiency of the heat exchange device 3 is improved by improving the heat exchange efficiency of the evaporator 2.

[0098] Optionally, combined Figure 5 As shown, the heat exchange device 3 further includes a compressor 4 and a condenser 5. The evaporator 2, the compressor 4 and the condenser 5 are connected in sequence to form a refrigerant flow path.

[0099] In this embodiment, the evaporator 2, the compressor 4 and the condenser 5 are connected in sequence to form a refrigerant flow path. The compressor 4 is used to compress the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant coming out of the compressor 4 enters the condenser 5. In the condenser 5, the high-temperature and high-pressure gaseous refrigerant releases heat and condenses into a low-temperature and high-pressure liquid refrigerant through heat exchange with the external environment. After the refrigerant enters the evaporator 2, it absorbs heat in the evaporator 2 and evaporates into a high-temperature and low-pressure gaseous refrigerant, achieving heat exchange with the surrounding environment and cooling the surrounding environment. The high-temperature and low-pressure gaseous refrigerant coming out of the evaporator 2 returns to the compressor 4 again, starting a new round of refrigerant circulation.

[0100] Because when the heat exchange device 3 is working at a high load, the speed of the compressor 4 is high and the refrigerant circulation volume is large. When working at a low load, the speed of the compressor 4 is low and the refrigerant circulation volume is small. Therefore, the mode switching of the liquid distributor 1 can be achieved by obtaining the speed of the compressor 4 and controlling the operation of the drive component 30. Exemplarily, when the speed of the compressor 4 is greater than or equal to 1 / 2 of the nominal speed, the operation of the drive component 30 is controlled so that the first liquid distribution plate 10 or the second liquid distribution plate 20 forms a first channel to the first position (the first liquid distribution hole 110 and the second liquid distribution hole 220 are interconnected); when the speed of the compressor 4 is less than 1 / 2 of the nominal speed, the operation of the drive component 30 is controlled so that the first liquid distribution plate 10 or the third liquid distribution plate forms a second channel to the second position (the first liquid distribution hole 110 and the third liquid distribution hole 230 are interconnected).

[0101] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A liquid distributor, characterized in that: include: A first liquid distribution plate, comprising a first liquid distribution hole; A second liquid distribution plate is arranged parallel to the first liquid distribution plate, the second liquid distribution plate and the first liquid distribution plate can slide relative to each other, and the second liquid distribution plate includes a second liquid distribution hole; A driving component, wherein an output end of the driving component is connected to the first liquid distribution plate or the second liquid distribution plate; The driving assembly is used to drive one of the first liquid distribution plate and the second liquid distribution plate to translate relative to the other so as to change the through area between the first liquid distribution hole and the second liquid distribution hole.

2. The liquid dispenser according to claim 1, characterized in that: The second liquid distribution plate also includes: board body; third liquid distribution holes, wherein the third liquid distribution holes and the second liquid distribution holes are alternately arranged at intervals on the plate body; Wherein, when the driving component drives the first liquid distribution plate or the second liquid distribution plate to the first position, the first liquid distribution hole and the second liquid distribution hole are connected; When the driving component drives the first liquid distribution plate or the second liquid distribution plate to the second position, the first liquid distribution hole and the third liquid distribution hole are connected.

3. The liquid distributor according to claim 2, characterized in that: The cross-sectional area of ​​the first liquid distribution hole is greater than the cross-sectional area of ​​the third liquid distribution hole; The cross-sectional area of ​​the second liquid distribution hole is greater than the cross-sectional area of ​​the third liquid distribution hole; The cross-sectional area of ​​the first liquid distribution hole is equal to the cross-sectional area of ​​the second liquid distribution hole.

4. The liquid dispenser according to claim 1, characterized in that: There are multiple first liquid distribution holes, and the multiple first liquid distribution holes are evenly spaced and distributed on the first liquid distribution plate; There are multiple second liquid distribution holes, and the multiple second liquid distribution holes are evenly spaced and distributed on the second liquid distribution plate; The spacing between the first liquid distribution holes is the same as the spacing between the second liquid distribution holes.

5. The liquid distributor according to any one of claims 1 to 4, characterized in that: The drive components include: Transmission components; The first connecting rod has two opposite ends connected to the output end of the transmission assembly and the first liquid distribution plate or the second liquid distribution plate respectively.

6. The liquid dispenser according to claim 5, characterized in that: The transmission components include: gear; A rack is arranged on the gear, and the first connecting rod is connected to the rack; The driving gear rotates to drive the rack to move, thereby driving the first connecting rod to move.

7. The liquid dispenser according to claim 5, characterized in that: The first connecting rod includes: A first support rod is arranged parallel to the first liquid distribution plate, and one end of the first support rod is connected to the first liquid distribution plate or the second liquid distribution plate; The second support rod has two opposite ends connected to the other end of the first support rod and the output end of the transmission assembly respectively; wherein the second support rod and the first support rod form a preset angle.

8. The liquid distributor according to any one of claims 1 to 4, characterized in that: The driving assembly includes a telescopic motor, and the output end of the telescopic motor is connected to the first liquid distribution plate or the second liquid distribution plate; or, The driving assembly includes a rotating motor and a second connecting rod, and opposite ends of the second connecting rod are respectively connected to the output end of the rotating motor and the first liquid distribution plate or the second liquid distribution plate.

9. An evaporator, characterized in that: include: The shell includes a mounting cavity and a refrigerant inlet, wherein the refrigerant inlet is connected to the mounting cavity; The liquid distributor according to any one of claims 1 to 8, arranged in the mounting cavity, wherein the position of the refrigerant inlet is higher than the position of the liquid distributor along the height direction of the shell; The heat exchange tube is arranged in the installation cavity, and along the height direction of the shell, the position of the heat exchange tube is lower than the position of the liquid distributor.

10. A heat exchange device, characterized in that: include: The evaporator as claimed in claim 9.

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