Liquid separator, control method and control device of liquid separator and air conditioner

Abstract

The invention provides a liquid separator, a control method and device of the liquid separator and an air conditioner. The liquid separator comprises a liquid inlet passage and a main confluence path; each group of confluence branches comprises two confluence branches which are arranged oppositely, outlets of the two confluence branches are arranged oppositely to form a convection structure, the convection structure is communicated to the confluence main path, and inlets of the two confluence branches are both communicated with the liquid inlet passage; and the plurality of liquid distribution pipes are communicated with the outlet of the confluence main path. According to the liquid separator, the control method and device of the liquid separator and the air conditioner, the liquid separation uniformity can be remarkably improved, the problem that the superheat degree is inconsistent due to uneven liquid separation of a traditional liquid separator is solved, in addition, the heat exchange efficiency is improved, the overall energy efficiency of an air conditioner system is improved, and the effects of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and particularly to a liquid distributor, a control method of the liquid distributor, a control device and an air conditioner. Background Art

[0002] With the booming development of the air-conditioning industry and the market demand for energy conservation and emission reduction, high efficiency and low consumption are the future development directions of air conditioners. The problem of high energy efficiency of air-conditioning systems has always been a technical difficulty that the air-conditioning industry needs to overcome. Among them, whether the liquid distribution of the liquid distributor is uniform directly affects the superheat degree of different branches, thereby affecting the system performance. Research shows that the uneven distribution can cause the efficiency of the heat exchanger to drop by up to 25%.

[0003] Most liquid distributors regard the wind speed distribution of the heat exchanger as an ideal situation of uniformity during the use of the whole machine, ignoring the consideration of the actual wind field of the heat exchanger. However, due to various reasons during the actual operation of the whole machine, the wind field of the heat exchanger is not completely uniform, and the wind speed corresponding to each flow path of the heat exchanger is not exactly the same. Summary of the Invention

[0004] The present invention provides a liquid distributor, a control method of the liquid distributor, a control device and an air conditioner to solve the defects existing in the prior art and achieve the following technical effects: it can significantly improve the uniformity of liquid distribution, avoid the problem of inconsistent superheat degrees caused by uneven liquid distribution in traditional liquid distributors. In addition, it improves the heat exchange efficiency, thereby enhancing the overall energy efficiency of the air-conditioning system and achieving the effect of energy conservation and emission reduction.

[0005] The liquid distributor according to the first aspect embodiment of the present invention includes: a liquid inlet passage and a main confluence passage; at least one group of confluence branches, each group of confluence branches includes two oppositely arranged confluence branches. Among them, the outlets of the two confluence branches are arranged opposite to each other to form a convection structure, and the convection structure communicates with the main confluence passage. The inlets of the two confluence branches are both communicated with the liquid inlet passage; a plurality of liquid distribution pipes, all of which are communicated with the outlet of the main confluence passage.

[0006] In summary, due to the adoption of impinging stream mixing and a carefully designed flow path layout, the liquid distributor of the present invention can significantly improve the uniformity of liquid distribution, avoid the problem of inconsistent superheat degrees caused by uneven liquid distribution in traditional liquid distributors. The uniform refrigerant distribution makes the heat exchange in each area of the heat exchanger more balanced, improves the heat exchange efficiency, thereby enhancing the overall energy efficiency of the air-conditioning system and achieving the effect of energy conservation and emission reduction.

[0007] According to an embodiment of the present invention, the confluence branch includes a diversion section and a confluence section connected in sequence. The inlet of the diversion section is communicated with the liquid inlet passage, and the outlet of the confluence section is communicated with the main confluence passage; within the same group of confluence branches, the central axes of the confluence sections of the two confluence branches coincide with each other.

[0008] In this way, the liquid distributor according to the embodiment of the present invention can utilize the impinging stream mixing principle, and through the carefully designed confluence branch structure, especially the coaxial design of the confluence section, achieve efficient and uniform distribution of the fluid.

[0009] According to an embodiment of the present invention, the central axis of the confluence section is perpendicular to the central axis of the main confluence path.

[0010] In this way, this design of the vertically arranged confluence section aims to optimize the liquid separation process through the physical characteristics of fluid movement, achieve efficient and uniform fluid distribution, and improve the energy efficiency of the air conditioning system.

[0011] According to an embodiment of the present invention, within the same group of the confluence branches, two of the confluence branches are symmetrically arranged along the central axis of the main confluence path.

[0012] In this way, the symmetric design of this embodiment aims to ensure the uniformity of the liquid distributor by precisely controlling the fluid flow, and improve the overall energy efficiency of the air conditioning system.

[0013] According to an embodiment of the present invention, the included angle between each two adjacent liquid separation tubes is the same, the included angle between each liquid separation tube and the main confluence path is the same, and the length and diameter of each liquid separation tube are the same.

[0014] In this way, the above structure ensures a high degree of consistency in the flow, turning, and distribution processes of the fluid (such as refrigerant) inside the liquid distributor, reduces the randomness of uneven fluid distribution, and improves the overall heat exchange efficiency and energy efficiency of the air conditioning system.

[0015] According to the control method of the liquid distributor based on the first aspect embodiment of the present invention according to the second aspect embodiment of the present invention, it includes: based on the connection structure between the liquid distributor and the heat exchanger, dividing the heat exchanger into several test units on average, wherein each test unit corresponds to a liquid separation tube; obtaining the wind speed information in each test unit; controlling and adjusting the flow rate in the liquid separation tube according to the wind speed information of the test unit.

[0016] According to an embodiment of the present invention, the step of controlling and adjusting the flow rate in the liquid separation tube according to the wind speed information of the test unit specifically includes: controlling and adjusting the flow rate in the liquid separation tube according to the first proportional relationship between the actual wind speeds of each test unit.

[0017] According to an embodiment of the present invention, the step of controlling and adjusting the flow rate in the liquid distribution pipe according to the proportional relationship between the actual wind speeds of the respective test units specifically includes: calculating, according to a first proportional relationship between the actual wind speeds of the respective test units, a second proportional relationship between the target flow rates of the respective liquid distribution pipes; calculating, according to the second proportional relationship, the target flow rates of the respective liquid distribution pipes, and respectively adjusting the actual flow rates of the respective liquid distribution pipes to their respective target flow rates.

[0018] According to an embodiment of the present invention, in the step of calculating, according to a first proportional relationship between the actual wind speeds of the respective test units, a second proportional relationship between the target flow rates of the respective liquid distribution pipes: the target flow rate of the liquid distribution pipe is positively correlated with the actual wind speed of the corresponding test unit.

[0019] According to an embodiment of the present invention, a flow control valve is provided on the confluence branch, and the method further includes: obtaining the flow rate information of two confluence branches in the same group; controlling and adjusting the opening degree of the flow control valve on at least one of the confluence branches according to the comparison result between the flow rate information of the two confluence branches.

[0020] In this way, through the above steps, based on the impact flow mixing principle of the liquid distributor structure, by real-time monitoring and feedback adjustment of the control valve on the confluence path, the equality of the flow rate of the flow path is ensured, thereby optimizing the impact mixing process and improving the energy efficiency and stability of the overall air conditioning system.

[0021] According to an embodiment of the present invention, the step of controlling and adjusting the opening degree of the flow control valve on at least one of the confluence branches according to the comparison result between the flow rate information of the two confluence branches specifically includes: determining that the flow rates of the two confluence branches are not equal, then obtaining the flow rate difference between the two confluence branches; determining the opening degree adjustment value of the flow control valve according to the flow rate difference, and controlling the opening degree of the flow control valve on the confluence branch with a smaller flow rate to increase the opening degree adjustment value, or controlling the opening degree of the flow control valve on the confluence branch with a larger flow rate to decrease the opening degree adjustment value.

[0022] A control device for a liquid distributor according to an embodiment of the third aspect of the present invention, based on the liquid distributor according to the embodiment of the first aspect of the present invention, includes: a first control module, configured to evenly divide the heat exchanger into a plurality of test units based on the connection structure between the liquid distributor and the heat exchanger, wherein each test unit corresponds to a liquid distribution pipe; an acquisition module, configured to acquire the wind speed information in each test unit; a second control module, configured to control and adjust the flow rate in the liquid distribution pipe according to the wind speed information of the test unit.

[0023] An air conditioner according to an embodiment of the fourth aspect of the present invention includes a liquid distributor as in the embodiment of the first aspect of the present invention, and further includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the control method of the air conditioner as described in the embodiment of the second aspect of the present invention. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is one of the schematic structural diagrams of the liquid distributor provided by the present invention.

[0026] Figure 2 It is the second schematic structural diagram of the liquid distributor provided by the present invention.

[0027] Figure 3 It is the third schematic structural diagram of the liquid distributor provided by the present invention.

[0028] Figure 4 It is the schematic principle diagram of the liquid distributor provided by the present invention.

[0029] Figure 5 It is the gas-liquid two-phase schematic diagram of the liquid distributor provided in the related art.

[0030] Figure 6 It is the statistical chart of the gas-liquid two-phase mass flow rate at each outlet of the liquid distributor provided in the related art.

[0031] Figure 7 It is the gas-liquid two-phase schematic diagram of the liquid distributor provided by the present invention.

[0032] Figure 8 It is the statistical chart of the gas-liquid two-phase mass flow rate at each outlet of the liquid distributor provided by the present invention.

[0033] Figure 9 It is the step schematic diagram of the control method of the liquid distributor provided by the present invention.

[0034] Figure 10 It is the schematic structural diagram of the control device of the liquid distributor provided by the present invention.

[0035] Figure 11 It is the schematic structural diagram of the electronic device provided by the present invention.

[0036] Reference Numerals in the Drawings: 1. Liquid inlet passage; 2. Main confluence path; 3. Confluence branch paths; 31. Shunt section; 32. Confluence section; 4. Liquid distribution tubes. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0038] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0039] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0040] A liquid distributor, a control method of the liquid distributor, a control device and an air conditioner according to the present invention are described below with reference to the accompanying drawings.

[0041] As Figures 1 to 4 shown, the liquid distributor according to the first aspect embodiment of the present invention includes a liquid inlet passage 1, a main confluence path 2, at least one group of confluence branch paths 3 and a plurality of liquid distribution tubes 4.

[0042] Each group of confluence branch paths 3 includes two oppositely arranged confluence branch paths 3. Among them, the outlets of the two confluence branch paths 3 are arranged opposite to each other to form a convection structure, and the convection structure is communicated with the main confluence path 2. The inlets of the two confluence branch paths 3 are both communicated with the liquid inlet passage 1; the plurality of liquid distribution tubes 4 are all communicated with the outlet of the main confluence path 2.

[0043] It can be understood that in the above-mentioned liquid distributor structure, the liquid inlet passage 1 is the input end of the liquid distributor, and all the refrigerant first enters the liquid distributor through this passage. The main confluence path 2 is located at the center of the liquid distributor and functions to collect and redistribute the fluid from the liquid inlet passage 1 and the confluence branch paths 3. Each group of confluence branch paths 3 includes two oppositely arranged branch paths. The characteristic of these branch paths is that their outlets are arranged face to face, forming a "convection structure", which means that the fluids interact here, increasing the mixing effect. Both inlets of each group of confluence branch paths 3 are connected to the liquid inlet passage 1. The liquid distribution pipes 4 are connected to the outlet of the main confluence path 2 and are responsible for further distributing the uniformly mixed fluid to different parts of the air-conditioning system, such as each branch path of the evaporator.

[0044] For the liquid distributor according to the embodiment of the present invention, its specific working process is as follows: Working principle and process: The refrigerant flows in from the liquid inlet passage 1 and is then distributed to the inlets of each group of confluence branch paths 3. In the confluence branch paths 3, after the refrigerant enters from two directions, due to the opposite arrangement of the outlets, a convection structure is formed. This means that the fluids from the two directions meet at the intersection point. Due to the difference in the densities of the liquid phase and the gas phase, as well as the momentum exchange during the flow, the two fluids are strongly mixed. The impinging stream mixing principle plays an important role here. Through the mutual collision and turbulence of the fluids, the mixing efficiency is improved and the stratification phenomenon is reduced. The mixed fluid converges into the main confluence path 2, where the fluids of all the branch paths are further integrated to ensure uniformity. The outlet of the main confluence path 2 is connected to the liquid distribution pipes 4. Through these pipes, the uniformly mixed fluid is accurately distributed to multiple branches in the air-conditioning system or each flow path of the heat exchanger.

[0045] Furthermore, the specific working principle of the liquid distributor of the present invention is as follows: The present invention designs the above-mentioned liquid distributor structure based on the impinging stream mixing principle. Among them, the impinging stream mixing principle is one of the most effective methods for strengthening the heat and mass transfer between phases and is widely used in many chemical processes. For example, in the combustion chamber, the impinging stream mixing principle is used to achieve the uniform mixing of fuel and air, thereby ensuring subsequent complete combustion.

[0046] Taking the simplest gas-solid impinging stream as an example to illustrate the advantages of using the impinging stream. As shown in the figure, two gas streams carrying solid particles collide after leaving the nozzle, thus forming a highly turbulent region with a high particle concentration, that is, the impinging zone. In the impinging zone, the solid particles can penetrate from one gas stream into the oppositely moving gas stream under the action of inertia. Finally, due to the frictional resistance, the speed is reduced to zero, and then it is accelerated by this gas stream and reaches the impinging zone again and penetrates into the original gas stream. After repeated penetration, it is finally carried out of the impinging zone by the radial jet. This repeated penetration transfer mode greatly improves the mass transfer between phases.

[0047] From the perspective of mechanism, mixing can be mainly divided into three types: molecular diffusion, bulk diffusion, and turbulent diffusion. Among them, turbulent diffusion mainly relies on the vortex formed by turbulent pulsation. Under the action of the vortex, the fluid will be dispersed into many small-scale micro-clusters, thereby enhancing the mixing process. Simply put, the basic principle of impinging flow mixing can be summarized as two or more, homogeneous or heterogeneous fluids moving towards each other and colliding, thereby forming an impact zone with high turbulence intensity in the middle area. Due to the collision, the axial velocity of the incoming flow tends to zero at the stagnation point, and then a 90° deflection occurs to produce radial flow. The biggest feature of the impinging flow is that the impact zone has high-intensity turbulence, resulting in a rapid and uniform mixing effect in the impact zone.

[0048] In summary, due to the use of impinging flow mixing and carefully designed flow path layout, the liquid distributor of the present invention can significantly improve the uniformity of liquid distribution, avoiding the problem of inconsistent superheat caused by uneven liquid distribution in traditional liquid distributors. The uniform refrigerant distribution makes the heat exchange in each area of the heat exchanger more balanced, improves the heat exchange efficiency, and thus improves the overall energy efficiency of the air-conditioning system, achieving the effect of energy saving and emission reduction.

[0049] According to some embodiments of the present invention, the number of the bus branches 3 can be one group, two groups or more groups. It can be understood that the design of the bus branches 3 is a key component for improving the fluid distribution uniformity of the distributor, especially the distribution of refrigerant in the air-conditioning system. The structure of the bus branches 3 affects the mixing degree and distribution efficiency of the fluid.

[0050] For example, the number of the confluence branches 3 is one group, which means that the liquid distributor only includes one convection structure, that is, two confluence branches 3 are arranged face to face to form a convection area (such as Figure 1 shown).

[0051] Specifically, the refrigerant enters two opposite converging branches 3 from the liquid inlet passage 1, collides and mixes at the outlet, and forms a highly turbulent flow in the convection area by using the principle of impinging flow mixing, so that the gas-liquid two-phase refrigerant is quickly and evenly mixed. After that, the mixed fluid enters the converging main passage 2 and is distributed through the liquid distribution pipe 4.

[0052] Thus, the above structure is simple in structure, easy to manufacture and maintain, and is suitable for small applications or applications where the requirements for liquid separation accuracy are not particularly high.

[0053] For another example, the number of the confluence branches 3 is two groups, which means that the liquid distributor is configured with two groups of confluence branches 3, which means that there are two convection structures, and each structure has two confluence branches 3 arranged face to face.

[0054] Specifically, each set of confluence branches 3 operates independently, and two sets act simultaneously, further enhancing the mixing effect of the fluid. The two sets can be in parallel or series. After separately processing partial flow rates and then aggregating, the level and complexity of fluid mixing are increased, which helps improve the mixing uniformity.

[0055] In this way, compared with a single set, better mixing uniformity can be provided, which is applicable to medium-scale systems or systems with certain requirements for liquid separation accuracy.

[0056] For another example, the number of sets of confluence branches 3 is multiple, which means the liquid distributor is designed with more than two sets of confluence branches 3. It can be three sets, four sets or more, and each set contains at least two confluence branches 3 facing each other.

[0057] Specifically, for each additional set of confluence branches 3, it is equivalent to adding an additional mixing unit, enabling the fluid to experience multiple collision and mixing processes before entering the main confluence path 2. This design can more precisely control the fluid distribution, improve the mixing uniformity and the system response speed.

[0058] In this way, the above structure provides the highest mixing uniformity and the best flow distribution control, especially suitable for large-scale, high-performance air-conditioning systems or systems with strict requirements for energy efficiency. It can more precisely match the air speeds of each flow path of the heat exchanger and optimize the energy efficiency ratio of the entire system.

[0059] In summary, the number of confluence branches 3 directly affects the mixing efficiency of the liquid distributor and the uniformity of fluid distribution. Designers can select a suitable configuration of confluence branches 3 according to the requirements of the actual application scenario to achieve the established performance goals.

[0060] As Figure 1 shown, according to some embodiments of the present invention, the confluence branch 3 includes a flow splitting section 31 and a confluence section 32 connected in sequence. The inlet of the flow splitting section 31 is connected to the liquid inlet passage 1, and the outlet of the confluence section 32 is connected to the main confluence path 2.

[0061] Within the same set of confluence branches 3, the central axes of the confluence sections 32 of the two confluence branches 3 coincide with each other.

[0062] In this embodiment, each confluence branch 3 consists of two parts. First is the flow splitting section 31, which is directly connected to the liquid inlet passage 1 and is responsible for receiving the fluid from the main input channel. Second is the confluence section 32, which is connected to the main confluence path 2 and its function is to collect and transport the fluid to the next step or the final distribution point. Such a design ensures a smooth transition of the fluid from input to output and creates conditions for subsequent uniform mixing at the same time. The confluence sections 32 of all confluence branches 3 finally converge together and send the fluid processed by each of them into the main confluence path 2, which is the centralized processing stage before uniform distribution.

[0063] It should be emphasized that, inside the same liquid separator, the central axes of the two facing confluence branches 3 (i.e., the center lines of the fluid flow) are completely aligned. This design is to achieve more efficient impinging flow mixing. When the two fluids meet at the center of the confluence section 32, due to the alignment of the axes, the collision is more direct and concentrated, which can more effectively break the stratification of the gas-liquid two phases, promote rapid mixing, and thus improve the mixing uniformity.

[0064] In this way, through the above-mentioned structural design, the liquid distributor of the embodiment of the present invention can utilize the principle of impinging flow mixing, and through the carefully designed structure of the confluence branch 3, especially the axis coincidence design of the confluence section 32, realize efficient and uniform distribution of the fluid. This design is crucial for the air-conditioning system because it is directly related to the efficiency of the heat exchanger, and thus affects the energy efficiency ratio of the entire system. In this way, not only the uniformity of liquid separation is improved, but also the actual situation of wind farms of different models can be coped with, the performance of the whole machine can be optimized, the debugging cost can be saved, and the goal of high efficiency and low consumption can be achieved.

[0065] like Figure 2 As shown, according to some embodiments of the present invention, the central axis of the merging section 32 and the central axis of the merging main road 2 are perpendicular to each other.

[0066] In this embodiment, the working process is as follows: after the fluid enters each branch section 31 from the liquid inlet passage 1, it first flows in its respective confluence section 32. The vertical design of the confluence section 32 causes the fluid to deflect 90° when it converges into the confluence main path 2. During this process, the fluid velocity decreases, but the turbulence intensity increases, which promotes the mixing of gas and liquid phases. The mixed fluid continues to flow along the confluence main path 2, and then is evenly distributed to the air conditioning system through the liquid distribution pipe 4, so that the flow of each flow path of the heat exchanger matches the wind field, thereby improving the heat exchange efficiency.

[0067] The design intentions of the vertical structure are as follows: (1) Optimizing fluid flow control: Through the vertical arrangement, the fluid can be guided to make a sharp turn at the junction of the confluence section 32 and the confluence main path 2, which is conducive to utilizing the momentum and inertia of the fluid itself and promoting the mixing of the fluids. Especially when dealing with gas-liquid two-phase fluids, this design can more effectively break up bubbles, reduce stratification, and make the gas phase and liquid phase mix more evenly.

[0068] (2) Enhanced turbulent mixing: The vertically intersecting fluid paths will cause strong turbulence in the fluid at the intersection, forming a local high-speed rotation and mixing area. Based on the principle of impinging flow mixing, this design strengthens the turbulent characteristics of the fluid, thereby accelerating the mixing process, so that the gas and liquid phases reach a highly mixed state before entering the converging main path 2.

[0069] (3)Improve uniformity: Through the vertical arrangement, the fluid undergoes a forced redistribution and mixing process before entering the main confluence path 2, which helps to eliminate the flow deviation of the fluid between different branch paths, ensures the uniformity of the fluid mass flow rate at each outlet, and improves the overall performance of the distributor.

[0070] In summary, the design of the confluence section 32 with this vertical arrangement aims to optimize the liquid distribution process through the physical characteristics of fluid movement, achieve efficient and uniform fluid distribution, and improve the energy efficiency of the air-conditioning system.

[0071] As Figure 1 and 2 shown, according to some embodiments of the present invention, within the same set of confluence branch paths 3, two confluence branch paths 3 are symmetrically arranged along the central axis of the main confluence path 2.

[0072] In this embodiment, the working process is briefly described as follows: The coolant (such as refrigerant) enters from the liquid inlet passage 1 and passes through the symmetrically arranged confluence branch paths 3. In the confluence section 32, due to the symmetric layout, the two fluid streams are consistent in structure and dynamics, promoting balanced flow. When the fluid converges into the main confluence path 2, the symmetry ensures the stability of the fluid flow pattern and reduces the possibility of uneven distribution. Finally, it is evenly distributed to each flow path of the heat exchanger through the liquid distribution pipes 4, matching the wind field and optimizing the heat exchange efficiency.

[0073] It can be understood that the symmetric setting means that the two branch paths are completely identical in structure and symmetric in spatial layout. Such a design can ensure that when the fluid enters the main confluence path 2 from these two branch paths, the flow rate and flow velocity are as consistent as possible, reducing the phenomenon of uneven flow, and thus achieving a better mixing effect.

[0074] Among them, the symmetric design helps to achieve more uniform distribution during the process of the fluid entering the liquid distribution pipes 4 from the main confluence path 2. Because the symmetric structure can ensure that factors such as the resistance and flow direction received by the fluid when entering the main path are basically the same, which is conducive to obtaining gas-liquid two-phase fluids with similar mass flow rates in each liquid distribution pipe 4 during the subsequent liquid distribution process.

[0075] In addition, in the air-conditioning system, this symmetric and uniform fluid distribution can effectively improve the heat exchange efficiency of the heat exchanger, reduce the difference in superheat, reduce energy loss, and thus improve the energy efficiency ratio of the whole machine.

[0076] In summary, the symmetric design of this embodiment aims to ensure the uniformity of the distributor and improve the overall energy efficiency of the air-conditioning system by precisely controlling fluid flow.

[0077] As Figure 3 shown, according to some embodiments of the present invention, the angle between every two adjacent liquid distribution pipes 4 is the same, the angle between each liquid distribution pipe 4 and the main confluence path 2 is the same, and the length and diameter of each liquid distribution pipe 4 are the same.

[0078] It can be understood that the angles between every two adjacent dispensing tubes 4 are the same. This design ensures that when the fluid coming out of the converging main path 2 enters the dispensing tube 4, it will encounter the same turning angle no matter which dispensing tube 4 it flows to. This symmetry is conducive to maintaining uniform distribution of the fluid during the turning, avoiding fluid deflection caused by different turning angles, thereby ensuring that the fluid flow and pressure received by each dispensing tube 4 are as consistent as possible.

[0079] The angle between each branch tube 4 and the main confluence path 2 is the same. Maintaining the consistency of this angle ensures that during the transfer of the fluid from the main confluence path 2 to the branch tube 4, no additional unnecessary turbulence or vortex will be generated due to the change in angle, which is conducive to smooth transition of the fluid and reduces energy loss. It also helps to maintain the flow balance of each branch.

[0080] For the structure in which each dispensing tube 4 has the same length and diameter, the uniform length and diameter of the dispensing tube 4 not only simplifies the manufacturing process and the assembly process, but more importantly, it helps to maintain consistent flow resistance and flow rate in fluid dynamics. The same diameter ensures that the flow resistance of the fluid in the pipeline is consistent, and the same length means that the time required for the fluid to pass through each pipeline is similar, which is crucial for maintaining synchronization and balanced distribution of various parts in the system.

[0081] In summary, these design principles work together to ensure the high consistency of the flow, diversion and distribution of the fluid (such as refrigerant) inside the liquid distributor, reduce the randomness of the uneven distribution of the fluid, and improve the overall heat exchange efficiency and energy efficiency of the air-conditioning system. Through the precise control of these geometric parameters, the liquid distributor structure of the present invention realizes the effective and uniform distribution of the gas-liquid two-phase fluid, meeting the requirements of modern air-conditioning systems with high efficiency and low energy consumption.

[0082] A specific embodiment of the liquid dispenser of the present invention is given below, and the liquid dispenser of the present invention is further compared with the liquid dispenser in the related art to highlight the particularity of the liquid dispenser of the present invention.

[0083] In the related technology, there are various types of liquid distributors: pressure drop type, centrifugal type, Venturi type, liquid storage type; in order to ensure the uniformity of liquid distribution of the liquid distributor, the liquid distributor is generally installed vertically in the system. Due to the installation space requirements, especially for the indoor unit, the refrigerant must go through multiple turns when entering the liquid distributor before it can enter the liquid distributor to generate diversion. Taking the embedded unit as an example, the flow channel model of the liquid distributor is shown in the figure.

[0084] The simulation software Cradle is used to simulate the liquid distributor calculation model in the related technology. The boundary conditions of the simulation are set according to the refrigerant type, dryness and experimental test conditions in the experimental test. The simulation analysis results are as follows: Figure 5 shown.

[0085] In the gas-liquid two-phase schematic diagram of the liquid distributor in the related art, red represents that the liquid volume fraction is 1 and the gas volume fraction is 0, and blue represents that the liquid volume fraction is 0 and the gas volume fraction is 1.

[0086] Furthermore, the refrigerant flow rate data of the liquid distributor in the related art are shown in the following table: Outlet Name Liquid Phase Mass Flow Rate kg / s Gas Phase Mass Flow Rate kg / s Outlet 1 1.16E-03 1.56E-03 Outlet 2 5.85E-03 4.30E-04 Outlet 3 1.39E-02 2.70E-04 Outlet 4 4.15E-03 5.24E-04 The data in Table 1 above are organized into a statistical chart as Figure 6 the result shown.

[0087] From the above simulation results, the overall liquid distribution uniformity of the liquid distributor in the related art is poor. The liquid mass flow rate at the outlet 3 on the outer side of the elbow section is the largest, and the gas mass flow rate is the smallest. The liquid mass flow rate at the outlet 1 on the inner side of the elbow section is the smallest, and the gas mass flow rate is the largest. Through simulation analysis, it can be obtained that the refrigerant at the inlet is initially evenly distributed. When passing through a 180° bend, the refrigerant undergoes a layering phenomenon. The liquid density is much greater than the gas density, and the liquid is affected by the centrifugal force and flows along the outer side of the arc. This layered fluid is split through the liquid distributor, resulting in the liquid mass flow rate at the outlet 3 arranged along the outer wall of the elbow being much greater than that of other outlets. The result of this uneven liquid distribution leads to a decline in the overall performance of the heat exchange system.

[0088] Therefore, in order to solve the technical defects existing in the liquid distributor in the above-mentioned related art and to solve the problem of uneven liquid distribution caused by gas-liquid stratification in the existing liquid distributor, based on the principle of impinging stream mixing, the present invention designs a new liquid distribution structure to disrupt the stratified flow of the gas-liquid two-phase, thereby achieving uniform distribution of the gas-liquid two-phase.

[0089] Based on this principle, the designed new liquid distributor structure is as Figure 1 shown. The liquid distributor of the present invention includes a liquid inlet passage 1, a main confluence path 2, a group of confluence branch paths 3, and four liquid distribution pipes 4.

[0090] This group of confluence branch paths 3 each includes two relatively arranged confluence branch paths 3. The two ends of the confluence branch path 3 are respectively connected to the liquid inlet passage 1 and the main confluence path 2. Each confluence branch path 3 includes a diverging section 31 and a confluence section 32 connected in sequence. The inlet of the diverging section 31 communicates with the liquid inlet passage 1, and the outlet of the confluence section 32 communicates with the main confluence path 2. The central axes of the confluence sections 32 of the two confluence branch paths 3 coincide with each other, and the central axis of the confluence section 32 is perpendicular to the central axis of the main confluence path 2.

[0091] Similarly, to further illustrate the distribution uniformity of the new liquid separation structure based on the impinging stream mixing principle, the simulation software Cradle was used to perform simulation calculations on the liquid distributor calculation model. The boundary conditions of the simulation were set according to the refrigerant type, dryness, and experimental test conditions in the experimental tests. After completing the simulation analysis, the refrigerant flow rate data of the liquid distributor are shown in the following table: From the data in the statistical charts of the gas-phase and liquid-phase mass flow rates, it can be seen that the liquid separation uniformity of the new liquid distributor based on the impinging stream mixing principle has been significantly improved, and the gas phase and liquid phase are evenly distributed at all 4 outlets. That is, based on the principle of impinging stream mixing, the present invention designs a new liquid separation structure to disrupt the stratified flow of the gas-liquid two-phase, thereby achieving the uniform distribution of the gas-liquid two-phase and ensuring the uniformity of the flow.

[0092] Furthermore, the data in the following table are organized into a statistical chart as Figure 8 the result shown.

[0093] Outlet Name Liquid Phase Mass Flow Rate kg / s Gas Phase Mass Flow Rate kg / s OUT1 6.19E-03 7.06E-04 OUT2 5.78E-03 7.16E-04 OUT3 6.50E-03 6.96E-04 OUT4 6.62E-03 6.86E-04 As Figure 7 shown, in the schematic diagram of the gas-liquid two-phase of the liquid distributor of the present invention, red represents that the liquid-phase volume fraction is 1 and the gas-phase volume fraction is 0, and blue represents that the liquid-phase volume fraction is 0 and the gas-phase volume fraction is 1. It can be seen from the gas-phase and liquid-phase distribution nephograms that the new liquid distributor structure based on the impinging stream mixing principle can effectively disrupt the stratified flow of the gas-liquid two-phase. Through the impingement of two airflows, intense turbulent disturbances are formed in the impingement zone, and the stratified gas-liquid two-phase is remixed to ensure uniform liquid separation at the subsequent liquid separation head and improve the system energy efficiency of the whole machine.

[0094] Next, the control method, control device, and liquid distributor of the liquid distributor proposed by the present invention will be described with reference to the accompanying drawings. Among them, before describing the embodiments of the present invention in detail, the entire application scenario will be described first. The control method, control device, electronic device, and computer-readable storage medium of the liquid distributor in the embodiments of the present invention can be applied not only to the local liquid distributor but also to cloud platforms in the Internet field, or cloud platforms in other types of Internet fields, or can also be applied to third-party devices. Among them, the third-party devices may include various different types such as mobile phones, tablets, laptops, in-vehicle computers, and other intelligent terminals.

[0095] Hereinafter, only the control method applicable to the liquid distributor will be used as an example for illustration. It should be understood that the control method of the embodiments of the present invention can also be applicable to cloud platforms and third-party devices.

[0096] As Figure 9 shown, according to the control method of the liquid distributor in the second aspect embodiment of the present invention, it includes steps S1, S2, and S3.

[0097] Step S1: Based on the connection structure between the liquid distributor and the heat exchanger, the heat exchanger is evenly divided into several test units, where each test unit corresponds to a liquid distribution pipe 4.

[0098] Step S2: Obtain the wind speed information within each test unit.

[0099] Step S3: Control and adjust the flow rate within the liquid distribution pipe 4 according to the wind speed information of the test unit.

[0100] According to the control method of the liquid distributor according to the embodiments of the present invention, first, the structural connection between the liquid distributor and the heat exchanger is clarified, which is the basis for subsequent control. By analyzing the connection layout between the outlet of the liquid distributor and each flow path of the heat exchanger, the heat exchanger is reasonably divided into several test units. This process needs to ensure that each test unit corresponds one-to-one with a liquid distribution pipe 4 according to the physical structure of the heat exchanger and the outlet configuration of the liquid distributor, so as to accurately measure and adjust subsequently.

[0101] In step S2, obtaining the wind speed information inside each test unit is a prerequisite for achieving precise control. Because the wind speed directly affects the heat exchange efficiency, understanding the wind speed distribution in each area is crucial for optimizing the flow rate distribution. Specifically, devices such as multi-point anemometers are used to monitor in real time within each test unit, and wind speed data is collected, including instantaneous wind speed and average wind speed, which reflect the actual distribution of the wind field.

[0102] In step S3, adjusting the flow rate of the liquid distribution pipe 4 according to the wind speed information is the key to maximizing the efficiency of the heat exchanger. Areas with high wind speed require more refrigerant flow to make full use of heat exchange, and vice versa. Specifically, the control module dynamically adjusts the opening degree of the liquid distribution pipe 4 through control means such as electronic valves according to the wind speed data of the test unit, so as to adjust the refrigerant dosage of each flow path, ensure that the flow rate of each flow path matches the wind speed, and thus optimize the heat exchange efficiency of the entire system.

[0103] In summary, the advantage of the above control method is that it breaks the traditional static assumption, fully considers the non-uniformity of the wind field of the heat exchanger during actual operation, and through precise control of the flow rate distribution of the liquid distributor, makes the distribution of the refrigerant match the wind speed field of the heat exchanger to the greatest extent. This not only improves the heat exchange efficiency, but also reduces the commissioning time, saves manpower, material resources and commissioning costs. It is a highly intelligent and dynamically optimized solution that meets the modern requirements for improving the energy efficiency of air conditioning systems.

[0104] According to some embodiments of the present invention, the step of controlling and adjusting the flow rate within the liquid distribution pipe 4 according to the wind speed information of the test unit specifically includes: controlling and adjusting the flow rate within the liquid distribution pipe 4 according to the first proportional relationship between the actual wind speeds of each test unit.

[0105] In this embodiment, sensors or measuring devices are used to accurately obtain the actual wind speeds of each test unit. According to the measured wind speed data, the control system calculates the target flow rate to which the liquid distribution pipe 4 should be adjusted by using the proportional relationship between the wind speed data. Then, the flow rate in the liquid distribution pipe 4 is actually changed through a regulating valve, a pump or other fluid control devices to reach the calculated target value.

[0106] In some specific embodiments of the present invention, the step of controlling and adjusting the flow rate in the liquid distribution pipe 4 according to the proportional relationship between the actual wind speeds of each test unit specifically includes: calculating a second proportional relationship between the target flow rates of each liquid distribution pipe 4 according to a first proportional relationship between the actual wind speeds of each test unit; calculating the target flow rates of each liquid distribution pipe 4 according to the second proportional relationship, and respectively adjusting the actual flow rate of each liquid distribution pipe 4 to its respective target flow rate.

[0107] In this embodiment, the specific adjustment process of the flow rate in the liquid distribution pipe 4 is as follows.

[0108] First, the system identifies the actual wind speed of each test unit and uses these data to determine the proportional or comparison value of the wind speeds between different test units according to the first proportional relationship. This conversion step is fundamental because it establishes the mathematical connection between the wind speed and the flow rate regulation.

[0109] Based on the first proportional relationship, a second proportional relationship between the target flow rates of each liquid distribution pipe 4 is further derived. This means that not only the wind speed of a single test unit is considered, but also the relative proportion of the wind speeds of all test units is comprehensively considered to determine what flow rate proportion each liquid distribution pipe 4 should reach to achieve the overall balance or optimal control strategy.

[0110] Based on the second proportional relationship, the specific target flow rate value is calculated for each liquid distribution pipe 4. Subsequently, through an automatic control system or manual intervention, the actual flow rate of each liquid distribution pipe 4 is adjusted to its target value. Among them, the above flow rate adjustment can be achieved by adjusting the opening degree of the flow valve on each liquid distribution pipe 4.

[0111] In summary, this embodiment demonstrates how to effectively convert external environmental factors (wind speed) into internal control parameters (flow rate of the liquid distribution pipe 4) through complex multi-level proportional relationship conversion, reflecting a high degree of self-adaptability and refined control ability, and is applicable to complex systems with high environmental sensitivity or requiring dynamic adjustment.

[0112] Furthermore, in the step of calculating the second proportional relationship between the target flow rates of each liquid distribution pipe 4 according to the first proportional relationship between the actual wind speeds of each test unit: the target flow rate of the liquid distribution pipe 4 is positively correlated with the actual wind speed of its corresponding test unit.

[0113] It can be understood that emphasizing that the target flow rate of the liquid separation pipe 4 is positively correlated with the actual wind speed of its corresponding test unit means that the higher the wind speed, the higher the target flow rate of the corresponding liquid separation pipe 4 should be set. The above design logic is based on considerations such as maintaining system efficiency, energy balance, or reaction rate, ensuring that when the wind speed changes, the liquid separation process can adapt in a timely manner and maintain the optimal state of the entire system operation.

[0114] For example, if the heat exchanger has a total of four heat exchange flow paths, each heat exchange flow path is a test unit, that is, each heat exchange flow path corresponds to a liquid separation pipe. The proportional relationship of the actual wind speeds of the four heat exchange flow paths from top to bottom is measured as: 4:3:2:1, that is, the actual wind speed of the heat exchange flow path at the top of the heat exchanger is the largest, and the actual wind speed of the heat exchange flow path at the bottom is the smallest. At this time, the mass flow rate at the outlet of the liquid distributor should also be adjusted according to the above proportional relationship of the actual wind speeds. At this time, the proportional relationship between the target flow rates of the four liquid separation pipes 4 is not a uniform flow distribution of 1:1:1:1, but a flow distribution ratio of 4:3:2:1. In this way, the refrigerant flow rate corresponding to the heat exchange flow path with a large wind speed is also large, and the refrigerant flow rate corresponding to the heat exchange flow path with a small wind speed is small, so that the refrigerant can be fully heat exchanged.

[0115] Of course, the above embodiments only serve as examples and do not constitute specific limitations on the control method of the present invention. The present invention can also adopt other judgment methods to obtain the liquid separation pipe 4 with abnormal flow rate and adjust the liquid separation control valve on the liquid separation pipe 4.

[0116] According to some embodiments of the present invention, a confluence control valve is provided on the confluence branch 3, and the method further includes: obtaining the flow rate information of two confluence branches 3 in the same group; controlling and adjusting the opening degree of the confluence control valve on at least one confluence branch 3 according to the comparison result between the flow rate information of the two confluence branches 3.

[0117] It should be explained that in the design of a new type of liquid distributor based on the impinging stream mixing principle, in order to achieve more efficient gas-liquid two-phase uniform mixing, the flow control of the flow path is particularly important. Combining the impinging stream mixing principle, when two fluid streams meet in the impinging zone, a strong turbulent fluid mixing effect occurs, ensuring uniform mixing of the gas-liquid two phases. To ensure this uniform mixing effect, the flow rates of the two counter-flow paths should be as equal as possible to achieve the best mixing state. The following is an explanation of the flow rate adjustment steps in the above embodiments in combination with the impinging stream mixing principle.

[0118] First, the system obtains the refrigerant flow rate information of two confluence paths in the same group in real time through monitoring devices such as sensors or flow meters. This is the basic linear data support for ensuring flow rate adjustment.

[0119] Next, compare the flow rate data of these two flow paths to evaluate whether they are equal or different. The impinging stream mixing principle emphasizes the rapid and uniform mixing of fluids in the impinging zone. Therefore, flow rate matching is a prerequisite for achieving efficient mixing.

[0120] According to the comparison result, if it is found that the flow rates are not equal, the control system will intervene to adjust the confluence control valves on at least one confluence path. For example, if the flow rate of one flow path is too high, reduce the opening degree of its control valve to limit the flow rate and reduce the excess. Vice versa. This process ensures that the flow rates of the two flow paths gradually tend to be equal to achieve the optimal conditions for impinging stream mixing.

[0121] This adjustment process is dynamic and continuous. With changes in wind speed during operation or external conditions, the flow rate adjustment is also adjusted in a timely manner to ensure that there is always an optimally proportioned amount of fluid in the impinging zone and maintain the mixing efficiency.

[0122] In summary, through the above steps, the distributor structure based on the impinging stream mixing principle ensures the equality of the flow rates of the flow paths by real-time monitoring and feedback adjustment of the control valves on the confluence paths, thereby optimizing the impinging mixing process and improving the energy efficiency and stability of the overall air conditioning system. This design not only simplifies the traditional manual adjustment process but also enhances the flexibility of the system to adapt to complex wind field changes.

[0123] Furthermore, according to the comparison result between the flow rate information of the two confluence branches 3, the step of controlling and adjusting the opening degree of the confluence control valve on at least one confluence branch 3 specifically includes: determining that the flow rates of the two confluence branches 3 are not equal, and then obtaining the flow rate difference between the two confluence branches 3; Determine the opening degree adjustment value of the confluence control valve according to the flow rate difference, and control the opening degree of the confluence control valve of the confluence branch 3 with a smaller flow rate to increase the opening degree adjustment value, or control the opening degree of the confluence control valve of the confluence branch 3 with a larger flow rate to decrease the opening degree adjustment value.

[0124] As Figure 10 shown, the control device of the distributor according to the embodiment of the third aspect of the present invention includes: a first control module 110, configured to evenly divide the heat exchanger into several test units based on the connection structure between the distributor and the heat exchanger, where each test unit corresponds to a liquid distribution pipe 4; an acquisition module 120, configured to acquire the wind speed information in each test unit; a second control module 130, configured to control and adjust the flow rate in the liquid distribution pipe 4 according to the wind speed information of the test unit.

[0125] The air conditioner according to the embodiment of the fourth aspect of the present invention includes the distributor according to the embodiment of the first aspect of the present invention, and further includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the control method of the distributor according to the embodiment of the second aspect of the present invention.

[0126] Figure 11 An exemplary physical structure diagram of an electronic device is shown as Figure 11 shown. The electronic device may include: a processor 810, a communications interface 820, a memory 830, and a communication bus 840. Among them, the processor 810, the communications interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call the logical instructions in the memory 830 to execute the control method of the liquid distributor, including: based on the connection structure between the liquid distributor and the heat exchanger, evenly dividing the heat exchanger into several test units, where each test unit corresponds to a liquid distribution pipe 4; obtaining the wind speed information in each test unit; and controlling and adjusting the flow rate in the liquid distribution pipe 4 according to the wind speed information of the test unit.

[0127] In addition, when the logical instructions in the above-mentioned memory 830 are implemented in the form of software function units and sold or used as an independent product, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc that can store program codes.

[0128] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method of the liquid distributor provided by the above-mentioned various methods, including: based on the connection structure between the liquid distributor and the heat exchanger, evenly dividing the heat exchanger into several test units, where each test unit corresponds to a liquid distribution pipe 4; obtaining the wind speed information in each test unit; and controlling and adjusting the flow rate in the liquid distribution pipe 4 according to the wind speed information of the test unit.

[0129] In another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements a control method for a liquid distributor provided by the above-mentioned various methods, including: based on the connection structure between the liquid distributor and the heat exchanger, dividing the heat exchanger into several test units on average, where each test unit corresponds to a liquid distribution pipe 4; obtaining the wind speed information in each test unit; and controlling and adjusting the flow rate in the liquid distribution pipe 4 according to the wind speed information of the test unit.

[0130] The device embodiments described above are merely illustrative. The units described as separation components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0131] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solutions, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiments.

[0132] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present invention.

Claims

1. A liquid dispenser, characterized in that, Including: A liquid inlet passage and a main confluence passage; At least one set of confluence branch passages, each set of confluence branch passages includes two oppositely arranged confluence branch passages. Among them, the outlets of the two confluence branch passages are arranged opposite to each other to form a convection structure, and the convection structure is communicated with the main confluence passage. The inlets of the two confluence branch passages are both communicated with the liquid inlet passage; A plurality of liquid distribution pipes, all of which are communicated with the outlet of the main confluence passage.

2. The dispenser according to claim 1, characterized in that, The confluence branch passage includes a shunt section and a confluence section connected in sequence. The inlet of the shunt section is communicated with the liquid inlet passage, and the outlet of the confluence section is communicated with the main confluence passage; Within the same set of confluence branch passages, the central axes of the confluence sections of the two confluence branch passages coincide with each other.

3. The dispenser according to claim 2, characterized in that, The central axis of the confluence section is perpendicular to the central axis of the main confluence passage.

4. The dispenser according to any one of claims 1 to 3, characterized in that Within the same set of confluence branch passages, the two confluence branch passages are symmetrically arranged along the central axis of the main confluence passage.

5. The dispenser according to any one of claims 1 to 3, characterized in that, The included angle between every two adjacent liquid distribution pipes is the same, the included angle between each liquid distribution pipe and the main confluence passage is the same, and the length and diameter of each liquid distribution pipe are the same.

6. A control method for a liquid dispenser according to any one of claims 1 to 5, characterized in that, Including: Based on the connection structure between the liquid distributor and the heat exchanger, the heat exchanger is evenly divided into several test units, where each test unit corresponds to a liquid distribution pipe; Obtain the wind speed information within each test unit; According to the wind speed information of the test unit, control and adjust the flow rate within the liquid distribution pipe.

7. The control method of the dispenser according to claim 6, wherein The step of controlling and adjusting the flow rate within the liquid distribution pipe according to the wind speed information of the test unit specifically includes: controlling and adjusting the flow rate within the liquid distribution pipe according to the first proportional relationship between the actual wind speeds of each test unit.

8. The control method of the liquid dispenser according to claim 7, wherein, The step of controlling and adjusting the flow rate within the liquid distribution pipe according to the proportional relationship between the actual wind speeds of each test unit specifically includes: Calculate the second proportional relationship between the target flow rates of each liquid distribution pipe according to the first proportional relationship between the actual wind speeds of each test unit; According to the second proportional relationship, calculate the target flow rate of each liquid distribution pipe, and respectively adjust the actual flow rate of each liquid distribution pipe to its target flow rate.

9. The control method of the liquid distributor according to claim 8, wherein, In the step of calculating the second proportional relationship between the target flow rates of each liquid distribution pipe according to the first proportional relationship between the actual wind speeds of each test unit: the target flow rate of the liquid distribution pipe is positively correlated with the actual wind speed of the corresponding test unit.

10. The control method of the liquid dispenser according to any one of claims 6 to 9, characterized in that, A confluence control valve is arranged on the confluence branch passage, and the method further includes: Obtain the flow rate information of two confluence branch passages within the same group; According to the comparison result between the flow rate information of the two confluence branch passages, control and adjust the opening degree of the confluence control valve on at least one confluence branch passage.

11. The control method of the dispenser according to claim 10, wherein, The step of controlling and adjusting the opening degree of the confluence control valve on at least one confluence branch passage according to the comparison result between the flow rate information of the two confluence branch passages specifically includes: Determine that the flow rates of the two confluence branch passages are not equal, then obtain the flow rate difference between the two confluence branch passages; Determine the opening adjustment value of the confluence control valve according to the flow difference value, and control the opening of the confluence control valve of the confluence branch with a smaller flow to increase the opening adjustment value, or control the opening of the confluence control valve of the confluence branch with a larger flow to decrease the opening adjustment value.

12. A control device for a liquid dispenser according to any one of claims 1 to 5, characterized in that, Comprising: A first control module, configured to evenly divide the heat exchanger into a plurality of test units based on the connection structure between the liquid distributor and the heat exchanger, wherein each test unit corresponds to a liquid distribution pipe; An acquisition module, configured to acquire the wind speed information in each test unit; A second control module, configured to control and adjust the flow rate in the liquid distribution pipe according to the wind speed information of the test unit.

13. An air conditioner, characterized in that, Comprising a liquid distributor according to any one of claims 1 to 5, further comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, implementing the control method of the air conditioner according to any one of claims 6 to 11.

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