Self-adaptive flow control device for refrigerant distributor of multi-split air conditioner

Abstract

The invention relates to the technical field of multi-split refrigerant distributors, in particular to a self-adaptive flow control device of a multi-split refrigerant distributor, which comprises a condenser, a drying filter connected to the outer side of the condenser, and an expansion valve connected to one end, far away from the condenser, of the drying filter, a self-cleaning filtering mechanism is connected between the condenser and the drying filter through a pipeline, the self-cleaning filtering mechanism comprises rotating blades and a cleaning assembly in transmission connection with the rotating blades, and a discharging assembly used for discharging cleaned impurities is arranged at the bottom of the cleaning assembly; according to the invention, the self-cleaning filtering mechanism drives the rotating blades to rotate by utilizing the flowing kinetic energy of the refrigerant medium, and drives the cleaning mechanism to clean impurities filtered by the filtering piece in a reciprocating manner, so that the problem that the refrigerant medium flowing through the drying filter is blocked due to the impurities carried inside under long-time work is avoided; and long-term stable operation of equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of refrigerant distributor technology for multi-split air conditioning systems, specifically an adaptive flow control device for refrigerant distributors in multi-split air conditioning systems. Background Technology

[0002] The adaptive flow control device of the refrigerant distributor for multi-split air conditioners is a system that dynamically adjusts the refrigerant flow through intelligent algorithms and sensor networks. It aims to solve the problem of uneven refrigerant distribution caused by differences in pipe length and load fluctuations in multi-split air conditioners, thereby improving energy efficiency and operational stability. The main components of the existing refrigerant distributor include a cabinet and centrifugal fans symmetrically arranged at the upper part of the cabinet. An evaporator is located in the middle section of the cabinet, and an electrical control box, condenser, and scroll compressor are located at the bottom. An expansion valve is connected to the outside of the condenser through a pipe. In a multi-split system, the expansion valve is divided into a main expansion valve connected to the condenser and branch expansion valves set in each branch connected to the main expansion valve.

[0003] Existing multi-split refrigerant distributors regulate refrigerant flow by precisely controlling the opening of the expansion valve. Sensors monitor the evaporator outlet temperature, return air temperature, pressure, and refrigerant flow parameters of each branch in real time. The sensor data is used to calculate the refrigerant cooling or heating demand of each indoor unit, generating the target subcooling or superheat. At the same time, the compressor discharge temperature and top temperature are monitored to determine the refrigerant balance of the system. The refrigerant flow status is determined by combining various parameters, and the refrigerant flow is precisely regulated by the expansion valve to avoid problems such as liquid slugging or incomplete evaporation. To prevent impurities carried by the refrigerant from entering the expansion valve and other equipment, existing technology uses a dryer filter between the expansion valve and the condenser to filter out impurities and moisture in the refrigerant. This prevents blockage of the expansion valve and damage to the equipment, which could lead to refrigerant flow regulation malfunctions. However, after a period of use, impurities accumulate on the filter screen of existing dryers, potentially causing blockage. In multi-split systems, the dryer filter located on the main unit is more prone to blockage due to the large refrigerant flow. If it is not replaced in time, the refrigerant may carry impurities along the weak points of the blockage into the expansion valve, potentially causing blockage and reducing the accuracy of refrigerant flow regulation. Existing dryers are mostly integrated or have removable filters, but regardless of the type, replacement can only be done after the equipment is shut down, which is inconvenient for normal use and reduces the user experience for office staff.

[0004] Therefore, the present invention provides an adaptive flow control device for a multi-split refrigerant distributor that is less prone to impurities entering the expansion valve and causing refrigerant flow regulation failures inside the equipment. Summary of the Invention

[0005] To address the problems in existing technologies, such as refrigerant flow regulation failures caused by impurities flowing into the expansion valve due to clogged dryer filters, an adaptive flow control device for multi-split refrigerant distributors has been designed.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an adaptive flow control device for a multi-split refrigerant distributor, including a condenser and a dryer filter connected to the outside of the condenser, an expansion valve connected to the end of the dryer filter away from the condenser, and a self-cleaning filter mechanism connected by a pipeline between the condenser and the dryer filter. The self-cleaning filtration mechanism includes rotating blades and a cleaning component connected to the rotating blades via a drive mechanism. This component transfers the kinetic energy of the flowing cold medium to the cleaning component, causing it to reciprocate and clean impurities. The bottom of the cleaning component is provided with a discharge component for discharging the cleaned impurities. The discharge component includes a conveying element arranged in a variable diameter spiral for conveying and squeezing impurities. A drain chamber is provided on the outside of the conveying element for collecting the liquid generated by the conveying element squeezing impurities and returning it to the main channel.

[0007] Furthermore, the self-cleaning filter mechanism also includes a connector for connecting the condenser and the dryer filter. The connector has a main channel for the flow of the refrigerant inside. A protrusion is provided on the side wall of the main channel at the end of the connector near the condenser. A transmission component is fixedly connected to the upper end of the rotating blade. A cleaning groove is provided inside the connector, and a filter element is provided on one side of the cleaning groove.

[0008] Furthermore, the two ends of the rotating blade are rotatably connected to the connecting member, and the rotating blade can rotate inside the main channel. The rotating blade is connected to the cleaning component through the transmission member. The bottom end of the cleaning component is located inside the cleaning tank and can reciprocate inside the cleaning tank to clean the filter element of impurities. The bottom end of the cleaning tank is connected to the discharge component. The connection between the bottom end of the cleaning tank and the discharge component is normally closed by a one-way valve. The outer side of the filter element is fixedly connected to the connecting member. The filter element and the main channel are coaxially arranged. The cross-sectional dimension of the filter element is larger than that of the main channel.

[0009] Furthermore, the cleaning assembly includes a reciprocating screw rotatably disposed inside the connector, a slider is driven to the outside of the reciprocating screw, a symmetrically arranged connecting rod is fixedly connected to the bottom end of the slider, a mounting frame is fixedly connected to the bottom end of the connecting rod, a scraper is rotatably mounted inside the mounting frame, and torsion springs are provided at both ends of the scraper, the torsion springs are located inside the mounting frame, and are used to connect the scraper and the mounting frame, so that the scraper can be adjusted and reset. The cleaning assembly is driven to the rotating blade through the screw.

[0010] Furthermore, the discharge assembly also includes a discharge chamber for rotating and conveying materials. The discharge chamber has evenly distributed drainage holes inside, which extend into the discharge chamber. A return hole is provided on one side of the discharge chamber, which extends into the cleaning tank. This return hole is used to return the liquid generated by the material conveying component squeezing impurities to the main channel. A discharge port extending to the outside of the connector is provided at the upper end of the discharge chamber for discharging impurities.

[0011] Furthermore, the cleaning tank includes symmetrically arranged adjustment tanks and symmetrically arranged adjustment blocks on the outside of the adjustment tanks, which are used to adjust the tilting direction of the scraper so that the scraper keeps tilted to scrape off impurities on the filter. The bottom of the cleaning tank is provided with a discharge chamber for connecting the discharge assembly, and a one-way valve is provided inside the discharge chamber.

[0012] Furthermore, the conveying component is arranged in a variable diameter spiral configuration, with the spiral spacing gradually decreasing from bottom to top, which is used to reduce the liquid content carried inside the impurities through gradual compression.

[0013] Furthermore, the protrusion is provided on one side of the main channel sidewall to guide the cold medium to flow to one side, so that it impacts the rotating blades and drives them to rotate.

[0014] Furthermore, the condenser is located at the bottom of the cabinet, centrifugal fans are symmetrically arranged at the top of the cabinet, an evaporator is arranged at the bottom of the centrifugal fans inside the cabinet, and an electrical control box and a scroll compressor are also arranged at the bottom of the cabinet.

[0015] The beneficial effects of this invention are: The adaptive flow control device for a multi-split refrigerant distributor described in this invention utilizes a self-cleaning filtration mechanism. This mechanism uses the kinetic energy of the refrigerant flow to drive rotating blades, which in turn drive a cleaning mechanism to repeatedly clean the filter elements, preventing clogging caused by impurities carried within the filter during prolonged operation. This ensures long-term stable operation of the equipment and prevents impurities from entering the expansion valve through weak points, thus avoiding equipment malfunctions and minimizing downtime for maintenance. Furthermore, the device incorporates a variable-diameter spiral conveyor and a drainage chamber design within the discharge assembly. This gradual compression reduces the liquid content carried by impurities. The drainage chamber collects the liquid and returns it to the main flow channel through a reflux hole. The discharge assembly recovers refrigerant liquid from impurities, reducing resource waste. The self-cleaning filtration mechanism prevents clogging, thereby improving the stability of refrigerant flow control. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the main body of the present invention; Figure 3 This is a schematic diagram of the internal side structure of the main body of the present invention; Figure 4 This is a schematic diagram of a partial internal structure of the main body of the present invention; Figure 5 This is a schematic diagram of the self-cleaning filter mechanism of the present invention; Figure 6 This is a front view of the self-cleaning filter mechanism structure of the present invention; Figure 7 This is a cross-sectional view of the connector structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of a portion at point A; Figure 9 This is a schematic diagram of the internal structure of the self-cleaning filter mechanism of the present invention; Figure 10 This is a schematic diagram of the cleaning component structure of the present invention; Figure 11 This is a schematic diagram of the material discharge assembly structure of the present invention; Figure 12 For the present invention Figure 11 A magnified view of section B; Figure 13 This is a schematic diagram of the internal structure of the discharge assembly of the present invention; Figure 14 This is a schematic diagram of the cleaning tank structure of the present invention; Figure 15 For the present invention Figure 14 A magnified view of a portion at point C; Figure 16 This is a schematic diagram of the material conveying component structure of the present invention; Figure 17 This is a partial cross-sectional view of the mounting frame of the present invention; Figure 18 For the present invention Figure 17 A magnified view of a portion at point D; Figure 19 This is a schematic diagram of the scraping component structure of the present invention.

[0018] In the diagram: 1. Cabinet; 2. Centrifugal fan; 3. Evaporator; 4. Electrical control box; 5. Condenser; 6. Scroll compressor; 7. Self-cleaning filter mechanism; 71. Connector; 72. Protrusion; 73. Rotating blade; 74. Transmission component; 75. Cleaning assembly; 751. Reciprocating screw; 752. Slider; 753. Connecting rod; 754. Mounting frame; 755. Scraper; 756. Torsion spring; 76. Cleaning tank; 761. Adjustment tank; 762. Adjustment block; 763. Discharge chamber; 77. Discharge assembly; 771. Conveying chamber; 772. Conveying component; 773. Drainage chamber; 774. Drainage hole; 775. Return hole; 776. Discharge port; 78. Filter element; 8. Dryer filter; 9. Expansion valve. Detailed Implementation

[0019] To make the technical means, technical features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Example: Figure 1 - Figure 19 As shown, the adaptive flow control device for a multi-split refrigerant distributor of the present invention includes a condenser 5 and a dryer filter 8 connected to the outside of the condenser 5. An expansion valve 9 is connected to the end of the dryer filter 8 away from the condenser 5. A self-cleaning filter mechanism 7 is connected by a pipe between the condenser 5 and the dryer filter 8. The self-cleaning filter mechanism 7 includes rotating blades 73 and a cleaning component 75 driven by the rotating blades 73. The cleaning component 75 transfers the kinetic energy of the refrigerant flow to the cleaning component 75 to make it reciprocate and clean impurities. A discharge component 77 is provided at the bottom of the cleaning component 75 for discharging the cleaned impurities. The discharge component 77 includes a conveying member 772 arranged in a variable diameter spiral for conveying and squeezing impurities. A drain chamber 773 is provided on the outside of the conveying member 772 for collecting the liquid generated by the conveying member 772 squeezing impurities and returning it to the main channel.

[0021] Specifically, the cooling medium is refrigerant. The scroll compressor 6 is fixedly connected to the condenser 5 via a high-pressure copper pipe. The scroll compressor 6 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas and delivers it to the condenser 5. Then, through the internal cooling cycle of the condenser 5, the high-temperature, high-pressure gaseous refrigerant is condensed into a medium-temperature, high-pressure liquid. Next, the refrigerant flows through the copper pipe into the main channel inside the self-cleaning filter mechanism 7. During the flow process, when passing through the self-cleaning filter mechanism 7, it is guided to one side by the protrusion 72. The fluid kinetic energy drives the rotating blades 73 to rotate, which in turn drives the cleaning component 75 to clean the impurities attached to the filter screen surface through the transmission component 74. After scraping and cleaning, the scraped impurities fall to the bottom of the cleaning tank 76 under gravity. The discharge of impurities is controlled by the opening and closing of the one-way valve. As the one-way valve opens, the impurities mixed with some liquid are discharged into the conveying chamber 771. With the variable diameter spiral structure design of the conveying component 772, the impurities are gradually squeezed and conveyed forward. At the same time, the internal pressure gradually increases, forcing the residual liquid in the impurities to re-enter the main channel through the drain chamber 773 for recycling, achieving efficient separation and resource recovery. Then, the refrigerant passes through the dryer filter 8 to adsorb residual moisture and impurities. Then, the high-pressure refrigerant is throttled and depressurized by the expansion valve 9, and the flow rate of the refrigerant is adjusted by controlling the opening degree.

[0022] In this embodiment, the self-cleaning filter mechanism 7 further includes a connector 71 for connecting the condenser 5 and the dryer filter 8. The connector 71 has a main channel for the flow of the refrigerant. A protrusion 72 is provided on the side wall of the main channel at the end of the connector 71 near the condenser 5. A transmission component 74 is fixedly connected to the upper end of the rotating blade 73. A cleaning groove 76 is provided inside the connector 71. A filter element 78 is provided on one side of the cleaning groove 76. The cleaning groove 76 includes a symmetrically arranged adjustment groove 761 and an adjustment block 762 symmetrically arranged on the outside of the adjustment groove 761, which is used to adjust the tilt direction of the scraper 755 so that the scraper 755 is kept tilted to scrape impurities on the filter element 78. A discharge chamber 763 is provided at the bottom of the cleaning groove 76 for connecting the discharge assembly 77.

[0023] Specifically, such as Figure 5 - Figure 19As shown, the connector 71 has an internal mounting groove for the movement of the cleaning component 75. The transmission component 74 can be configured to drive via a transmission wheel and a transmission belt. A tensioning wheel is provided between the transmission wheel located at the upper end of the rotating blade 73 and the transmission wheel located at the upper end of the reciprocating screw 751. Alternatively, it can be configured with any other structure that achieves the same effect. The cleaning groove 76 allows the mounting frame 754 to drive the scraper 755 to reciprocate and remove impurities. The size of the cleaning groove 76 is larger than the maximum reciprocating distance of the scraper 755. The protrusion 72 is located on one side of the main channel sidewall and is used to guide the refrigerant to flow to one side, causing it to impact the rotating blade 73 and rotate. The two ends of the rotating blade 73 are rotatably connected to the connector 71. The rotating blade 73 can rotate inside the main channel. 73 is connected to the cleaning component 75 via the transmission component 74. The bottom of the cleaning component 75 is located inside the cleaning tank 76 and can reciprocate inside the cleaning tank 76 to clean impurities from the filter element 78. The bottom of the cleaning tank 76 is connected to the discharge component 77. The connection between the bottom of the cleaning tank 76 and the discharge component 77 is normally closed by a one-way valve. The outer side of the filter element 78 is fixedly connected to the connector 71. The filter element 78 is coaxially aligned with the main channel. The filter element 78 is used to pre-filter impurities inside the refrigerant and can be self-cleaned by the cleaning component 75. A one-way valve is provided inside the discharge chamber 763. The self-cleaning filter mechanism 7 effectively avoids the problem of equipment shutdown for maintenance due to blockage of the dryer filter 8, and further improves the experience of office staff.

[0024] In this embodiment, the cleaning component 75 includes a reciprocating screw 751 rotatably disposed inside the connector 71. A slider 752 is drivenly connected to the outside of the reciprocating screw 751. A symmetrically arranged connecting rod 753 is fixedly connected to the bottom end of the slider 752. A mounting frame 754 is fixedly connected to the bottom end of the connecting rod 753. A scraper 755 is rotatably mounted inside the mounting frame 754. Torsion springs 756 are provided at both ends of the scraper 755. The torsion springs 756 are located inside the mounting frame 754 and are used to connect the scraper 755 and the mounting frame 754, so that the scraper 755 can be adjusted and reset. The cleaning component 75 is drivenly connected to the rotating blade 73 through the screw.

[0025] Specifically, such as Figure 9 - Figure 13As shown, the reciprocating screw 751 is a precision component that achieves mechanical transmission through a helical groove structure. Its core feature is that when the main shaft rotates in one direction, it drives the slider 752 to complete axial reciprocating motion. Guide rods are symmetrically arranged on both sides of the reciprocating screw 751 to guide and restrict the slider 752 to ensure smooth movement. The slider 752 can slide within the mounting groove inside the connecting member 71 under the action of the reciprocating screw 751. The connecting rod 753 is used to connect to the mounting frame 754 and drives the mounting frame 754 to move when the slider 752 slides. The maximum unidirectional sliding distance of the slider 752 on the reciprocating screw 751 is less than the size of the cleaning tank 76. The mounting frame 754 is used to mount the scraper 755, and both ends of the scraper 755 are rotatably mounted into the mounting frame 754. The part located inside the mounting frame 754 is partially cut away, and its interior is rotatably connected to the protrusion inside the mounting frame 754. At the same time, the torsion spring 756 is set inside the scraper 755 located inside the mounting frame 754 and between the protrusion. The two protruding sections of the torsion spring 756 are fixedly connected to the mounting frame 754 and the scraper 755 respectively. The scraper 755 can be set as a scraper to scrape off impurities. The scraper 755 is initially located inside the adjustment groove 761 opened at the upper end of the cleaning tank 76. When it moves, it is blocked by the adjustment block 762 and rotates inside the mounting frame 754 to adjust it to an inclined state, reducing scraping resistance and preventing it from being carried up with the filter 78. The cleaning component 75 can also be set as any other structure that can achieve the same effect.

[0026] In this embodiment, the discharge assembly 77 further includes a discharge chamber 771 for rotating and conveying materials by the conveying component 772. The discharge chamber 771 has uniformly distributed drainage holes 774 inside, which extend into the discharge chamber 773. A return hole 775 is provided on one side of the discharge chamber 773, which extends into the cleaning tank 76. The return hole 775 is used to return the liquid generated by the conveying component 772 squeezing impurities to the main channel. The upper end of the discharge chamber 771 has a discharge port 776 extending to the outside of the connector 71 for discharging impurities.

[0027] Specifically, such as Figure 11 - Figure 14 and Figure 16 As shown, the bottom side of the conveying chamber 771 is connected to the discharge chamber 763. When the one-way valve is open, impurities can be discharged into the conveying chamber 771 through the discharge chamber 763 and then transported by the conveying component 772. The conveying component 772 can be driven by a power source, which can be a motor or any other device that can achieve the same effect. The conveying component 772 is arranged in a variable diameter spiral, with the spiral spacing gradually decreasing from bottom to top, to reduce the liquid content carried inside the impurities through gradual compression. Figure 16The pitch of the conveying component 772 gradually decreases from the bottom a end to the top c end. As the pitch decreases, the squeezing force on the impurities gradually increases, thereby improving the separation effect of the liquid carried inside the impurities and reducing the waste of refrigerant due to impurity discharge. The drain chamber 773 is used to collect the liquid discharged by the conveying component 772 through the drain hole 774 and return it to the main channel through the return hole 775 set on the side near the cleaning tank 76. One side of the drain chamber 773 is connected to the cleaning tank 76 through the return hole 775. At the same time, the impurities discharged through the discharge port 776 can also be further separated by subsequent operations to separate the internal liquid content. The impurities discharged through the discharge port 776 can be collected by a box or discharged outside the equipment by a pipe. The discharge component 77 can also be set to any other structure that can achieve the same effect.

[0028] In this embodiment: the condenser 5 is located at the bottom of the cabinet 1, centrifugal fans 2 are symmetrically arranged at the upper part of the cabinet 1, the evaporator 3 is arranged at the bottom of the centrifugal fans 2 inside the cabinet 1, and an electrical control box 4 and a scroll compressor 6 are also arranged at the bottom of the cabinet 1. Specifically, such as Figure 1 - Figure 4 As shown, cabinet 1 serves as the outer shell of the equipment and provides installation positions for various internal devices. Centrifugal fan 2 forces air to flow through the fins of condenser 5 to enhance heat dissipation efficiency. Evaporator 3 absorbs heat from the chilled water again from the low-pressure liquid refrigerant and evaporates it to cool the chilled water. During the heat absorption process, the refrigerant changes from liquid to gas. Electrical control box 4 serves as the intelligent control center of the unit, integrating a microprocessor to achieve parameter monitoring, energy regulation, and fault protection. Condenser 5 cools the high-temperature, high-pressure gaseous refrigerant discharged from scroll compressor 6 into a high-pressure liquid. Scroll compressor 6 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas to provide power for subsequent condensation and heat dissipation. The above devices are existing technologies and will not be described in detail here.

[0029] Working principle: The scroll compressor 6 compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gas and delivers it to the condenser 5. Then, through the internal cooling cycle of the condenser 5, the high-temperature, high-pressure gaseous refrigerant is condensed into a medium-temperature, high-pressure liquid. Next, the refrigerant flows into the main channel inside the self-cleaning filter mechanism 7 through the copper pipe. Then, the refrigerant is guided by the protrusion 72 to flow to one side. As the refrigerant flows, it impacts the rotating blades 73 to rotate, and drives the cleaning component 75 to move through the transmission component 74. By driving the reciprocating screw 751 to rotate, and cooperating with the slider 752 and the connecting rod 753, the mounting frame 754 continues to move longitudinally. As the mounting frame 754 moves, the scraper 755 scrapes the impurities filtered on one side of the filter element 78, preventing them from accumulating due to prolonged lack of cleaning. The scraper 755 is initially located inside the adjustment groove 761 at the upper end of the cleaning tank 76. When it moves, it is blocked by the adjustment block 762 and rotates inside the mounting frame 754 to adjust it to an inclined state, reducing scraping resistance and preventing it from following the filter element 78. At the same time, as the scraper 755 rotates, it drives the torsion spring 756 to twist. Under the action of the torsion spring 756, the scraper 755 maintains a certain force in the inclined state to scrape the impurities. At the same time, when the scraper 755 moves into the adjustment groove 761 at the bottom end of the cleaning tank 76, it is reset by the action of the torsion spring 756. Next, under the reciprocating action of the reciprocating screw 751, the scraper 755 cleans the filter 78 back and forth to prevent impurities from clogging the filter screen and causing the refrigerant to carry impurities into the expansion valve 9 along the weak blockage area, which may lead to blockage of the expansion valve 9. Then, the refrigerant flows into the dryer filter 8 through the pipeline to absorb residual moisture and further filter impurities. Then, the refrigerant flows into the expansion valve 9 through the pipeline. The refrigerant flow is adjusted by precisely controlling the opening of the expansion valve 9. Then, the refrigerant flows into the evaporator 3 and each branch through the expansion valve 9 set in each branch. The refrigerant flow is controlled by the expansion valve 9 set in each branch. The outlet temperature, return air temperature, pressure and refrigerant flow parameters of each branch evaporator 3 are monitored in real time by the sensor. The refrigerant cooling or heating demand of each indoor unit is calculated by the sensor data to generate the target subcooling or superheat. At the same time, the compressor exhaust temperature and top temperature are monitored to determine the refrigerant balance status of the system. The refrigerant flow status is determined by combining the parameters. The refrigerant flow is further precisely adjusted by the expansion valve 9. Then, by periodically opening the one-way valve, impurities flow into the conveying chamber 771. The impurities, carrying some liquid, are conveyed by the conveying component 772 for discharge. As the conveying component 772 with its variable diameter screw compresses and conveys the impurities, the liquid inside the impurities flows into the discharge chamber 763 through the drain hole 774 under the compression action of the conveying component 772. Then, the liquid inside the discharge chamber 763 flows into the cleaning tank 76 through the return hole 775 and re-enters the main channel for recycling, thus achieving efficient separation of impurities and resource recovery.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive flow control device for a multi-split refrigerant distributor, comprising a condenser and a dryer filter connected to the outside of the condenser, wherein an expansion valve is connected to the end of the dryer filter away from the condenser, characterized in that: A self-cleaning filter mechanism is connected by a pipe between the condenser and the dryer filter. The self-cleaning filter mechanism includes rotating blades and a cleaning component that is driven to the rotating blades. The cleaning component is used to transfer the kinetic energy of the cold medium during flow to the cleaning component so that it moves back and forth to clean impurities. The bottom of the cleaning component is provided with a discharge component for discharging the cleaned impurities. The discharge assembly includes a conveying component arranged in a variable diameter spiral and a drainage chamber located outside the conveying component. The conveying component is used to transport and squeeze impurities to reduce the liquid content, and the drainage chamber is used to collect the liquid generated by the conveying component squeezing impurities and return it to the main channel.

2. The adaptive flow control device for the multi-split refrigerant distributor according to claim 1, characterized in that: The self-cleaning filter mechanism also includes a connector for connecting the condenser and the dryer filter. The connector has a main channel for the flow of the refrigerant. A protrusion is provided on the side wall of the main channel at the end of the connector near the condenser. A transmission component is fixedly connected to the upper end of the rotating blade. A cleaning groove is provided inside the connector, and a filter element is provided on one side of the cleaning groove.

3. The adaptive flow control device for the multi-split refrigerant distributor according to claim 2, characterized in that: The rotating blades are rotatably connected to the connecting parts at both ends. The rotating blades can rotate inside the main channel. The rotating blades are connected to the cleaning component through the transmission component. The bottom of the cleaning component is located inside the cleaning tank and can move back and forth inside the cleaning tank to clean the filter element of impurities. The bottom of the cleaning tank is connected to the discharge component. The connection between the bottom of the cleaning tank and the discharge component is normally closed by a one-way valve. The outer side of the filter element is fixedly connected to the connecting parts. The filter element and the main channel are coaxially arranged.

4. The adaptive flow control device for the multi-split refrigerant distributor according to claim 3, characterized in that: The cleaning assembly includes a reciprocating screw rotatably disposed inside the connector. A slider is driven to the outside of the reciprocating screw. A symmetrically arranged connecting rod is fixedly connected to the bottom end of the slider. A mounting frame is fixedly connected to the bottom end of the connecting rod. A scraper is rotatably mounted inside the mounting frame. Torsion springs are provided at both ends of the scraper. The torsion springs are located inside the mounting frame and are used to connect the scraper and the mounting frame, so that the scraper can be adjusted and reset. The cleaning assembly is driven to the rotating blade through the screw.

5. The adaptive flow control device for the multi-split refrigerant distributor according to claim 4, characterized in that: The discharge assembly also includes a discharge chamber for rotating and conveying materials. The discharge chamber has evenly distributed drainage holes inside, which extend into the discharge chamber. A return hole is provided on one side of the discharge chamber, which extends into the cleaning tank. This is used to return the liquid generated by the material conveying component squeezing impurities to the main channel. A discharge port is provided at the upper end of the discharge chamber, extending to the outside of the connector, for discharging impurities.

6. The adaptive flow control device for a multi-split refrigerant distributor according to claim 5, characterized in that: The cleaning tank includes symmetrically arranged adjustment tanks and symmetrically arranged adjustment blocks on the outside of the adjustment tanks, which are used to adjust the tilt direction of the scraper so that the scraper keeps tilted to scrape off impurities on the filter. The bottom of the cleaning tank has a discharge chamber for connecting the discharge assembly, and a one-way valve is provided inside the discharge chamber.

7. The adaptive flow control device for a multi-split refrigerant distributor according to claim 5, characterized in that: The conveying component is arranged in a variable diameter spiral configuration, with the spiral spacing gradually decreasing from bottom to top, which is used to reduce the liquid content carried inside the impurities through gradual compression.

8. The adaptive flow control device for the multi-split refrigerant distributor according to claim 2, characterized in that: The protrusion is located on one side of the main channel sidewall and is used to guide the cold medium to flow to one side, so that it impacts the rotating blades and drives them to rotate.

9. The adaptive flow control device for a multi-split refrigerant distributor according to claim 2, characterized in that: The condenser is located at the bottom of the cabinet. Centrifugal fans are symmetrically arranged at the top of the cabinet. An evaporator is located at the bottom of the centrifugal fans inside the cabinet. An electrical control box and a scroll compressor are also located at the bottom of the cabinet.

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