CN-122015347-A - Self-adaptive flow control device of multi-split refrigerant distributor

CN122015347ACN 122015347 ACN122015347 ACN 122015347ACN-122015347-A

Abstract

The invention relates to the technical field of multi-split refrigerant distributors, in particular to a self-adaptive flow control device of the multi-split refrigerant distributor, which comprises a condenser and a dry filter connected with the outer side of the condenser, wherein an expansion valve is connected with one end of the dry filter, which is far away from the condenser, a pipeline is connected between the condenser and the dry filter, the self-cleaning filter comprises a rotating blade and a cleaning component in transmission connection with the rotating blade, the bottom of the cleaning component is provided with a discharging component for discharging clean impurities, and the self-cleaning filter utilizes the flowing kinetic energy of a refrigerant medium to drive the rotating blade to rotate and drives the cleaning component to clean the filtered impurities in a reciprocating manner, so that the blockage problem of the refrigerant medium flowing through the dry filter due to the impurities carried in the refrigerant medium during long-time working is avoided, and long-term stable operation of equipment is ensured.

Inventors

Zhen Xipei
Ai Chunying
AI CHUNHUI
LI RUICONG
ZHAO ZIYAN
Zhen Xianglan

Assignees

河北有大元恒空调设备制造有限公司
北京有大元恒科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260228

Claims (9)

1. The self-adaptive flow control device of the multi-split refrigerant distributor comprises a condenser and a dry filter connected with the outer side of the condenser, wherein an expansion valve connected with one end of the dry filter far away from the condenser is characterized in that a self-cleaning filter mechanism is connected between the condenser and the dry filter through a pipeline; The self-cleaning filtering mechanism comprises a rotating blade and a cleaning assembly connected with the rotating blade in a transmission way, wherein the cleaning assembly is used for transmitting kinetic energy generated when a refrigerant medium flows to the cleaning assembly to enable the refrigerant medium to reciprocate so as to clean impurities, and a discharging assembly used for discharging the cleaned impurities is arranged at the bottom of the cleaning assembly; The discharging assembly comprises a conveying part and a liquid discharging cavity, wherein the conveying part is in variable-diameter spiral arrangement, the liquid discharging cavity is located outside the conveying part, the conveying part is used for conveying and extruding impurities to reduce liquid content, and the liquid discharging cavity is used for collecting liquid produced by the conveying part extruding the impurities and flowing back into the main runner.
2. The self-adaptive flow control device of the multi-split refrigerant distributor according to claim 1, wherein the self-cleaning filter mechanism further comprises a connecting piece used for connecting the condenser and the dry filter, a main flow channel used for flowing a refrigerant medium is formed in the connecting piece, a bulge is arranged on the side wall of the main flow channel in one end of the connecting piece, which is close to the condenser, a transmission piece is fixedly connected with the upper end of the rotating blade, a cleaning groove is formed in the connecting piece, and a filter piece is arranged on one side of the cleaning groove.
3. The self-adaptive flow control device of the multi-split refrigerant distributor according to claim 2, wherein two ends of the rotating blade are rotatably connected with the connecting piece, the rotating blade can rotate in the main flow channel, the rotating blade is in transmission connection with the cleaning assembly through the transmission piece, the bottom end of the cleaning assembly is positioned in the cleaning tank and can reciprocate in the cleaning tank to clean impurities of the filtering piece, the bottom end of the cleaning tank is in through connection with the discharging assembly, the joint of the bottom end of the cleaning tank and the discharging assembly is normally closed through the one-way valve, the outer side of the filtering piece is fixedly connected with the connecting piece, and the filtering piece is coaxially arranged with the main flow channel.
4. The self-adaptive flow control device of the multi-split refrigerant distributor according to claim 3, wherein the cleaning assembly comprises a reciprocating screw rod rotatably arranged in the connecting piece, a sliding block is connected to the outer side of the reciprocating screw rod in a transmission mode, connecting rods symmetrically arranged are fixedly connected to the bottom ends of the sliding block, a mounting frame is fixedly connected to the bottom ends of the connecting rods, the scraping piece is rotatably arranged in the mounting frame, torsion springs are arranged at two ends of the scraping piece and are positioned in the mounting frame and used for connecting the scraping piece and the mounting frame, so that the scraping piece can be subjected to position adjustment and reset, and the cleaning assembly is in transmission connection with the rotating blades through the screw rod.
5. The self-adaptive flow control device of the multi-split refrigerant distributor according to claim 4, wherein the discharging assembly further comprises a material conveying cavity for conveying materials by rotating the material conveying parts, uniformly distributed liquid discharging holes are formed in the material conveying cavity, the liquid discharging holes penetrate through the liquid discharging cavity, a backflow hole is formed in one side of the liquid discharging cavity, the backflow hole penetrates through the cleaning groove and is used for backflow of liquid generated by the material conveying parts extruding impurities into the main flow channel, and a discharge hole penetrating through the outer side of the connecting parts is formed in the upper end of the material conveying cavity and is used for discharging the impurities.
6. The device for controlling the self-adaptive flow of the multi-split refrigerant distributor according to claim 5, wherein the cleaning groove comprises symmetrically arranged adjusting grooves and symmetrically arranged adjusting blocks outside the adjusting grooves, the adjusting blocks are used for adjusting the inclination direction of the scraping piece to enable the scraping piece to keep inclining so as to scrape impurities on the filtering piece, a discharging cavity used for being connected with a discharging assembly is formed in the bottom of the cleaning groove, and a one-way valve is arranged in the discharging cavity.
7. The device for adaptively controlling the flow of the multi-split refrigerant distributor according to claim 5, wherein said material conveying member is arranged in a variable diameter spiral manner, and the pitch of the variable diameter spiral is gradually shortened from bottom to top, so as to reduce the content of liquid carried in the impurities by gradual compression.
8. The device for adaptively controlling a flow rate of a multi-split refrigerant distributor according to claim 2, wherein said protrusion is disposed on a side of a sidewall of the main flow path for guiding the refrigerant medium to flow toward one side so as to impact the rotating blade to rotate.
9. The self-adaptive flow control device of the multi-split refrigerant distributor according to claim 2, wherein the condenser is located at the bottom end of the inner part of the cabinet, centrifugal fans are symmetrically arranged at the upper end of the inner part of the cabinet, an evaporator is arranged at the bottom of the centrifugal fans, and an electric cabinet and a scroll compressor are further arranged at the bottom end of the inner part of the cabinet.

Description

Self-adaptive flow control device of multi-split refrigerant distributor Technical Field 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. Background The self-adaptive flow control device of the multi-split refrigerant distributor is a system for dynamically regulating the flow of the refrigerant through an intelligent algorithm and a sensor network, and aims to solve the problem of uneven refrigerant distribution caused by pipeline length difference and load fluctuation in the multi-split system, thereby improving energy efficiency and operation stability; Main components of the existing refrigerant distributor comprise a cabinet body and centrifugal fans symmetrically arranged at the upper end inside the cabinet body, an evaporator is arranged in the middle section inside the cabinet body, an electric cabinet, a condenser and a scroll compressor are further arranged at the bottom end, an expansion valve is connected to the outer side of the condenser through a pipeline, and the expansion valve is divided into a main expansion valve connected with the condenser and branch expansion valves arranged on each branch connected with the main expansion valve in a multi-split air conditioner system. The existing multi-split air conditioner refrigerant distributor regulates the refrigerant flow by precisely controlling the opening of an expansion valve, monitors the outlet temperature, the return air temperature, the pressure and the refrigerant flow parameters of each branch evaporator in real time through a sensor, calculates the reagent refrigerating or heating requirement of each indoor unit through sensor data, generates target supercooling degree or superheat degree, monitors the exhaust temperature and the top temperature of a compressor, judges the refrigerant balance state of a system, judges the refrigerant flow state by combining each parameter, and precisely regulates the refrigerant flow through the expansion valve, thereby avoiding the problems of liquid impact or incomplete evaporation; In order to avoid that impurities carried in the refrigerant enter the expansion valve and the inside of other equipment, in the prior art, a group of dry filters are arranged between the expansion valve and the condenser to filter impurities and moisture in the refrigerant, so that the problems that the expansion valve is blocked and the equipment is damaged and then refrigerant flow adjustment fails are avoided, but the existing dry filters are continuously stacked on a filter screen after being used for a period of time, so that the problem that the filter screen is blocked possibly occurs, the dry filters on a host machine in a multi-split system are blocked more easily due to the fact that the refrigerant flow is large, if the dry filters are not replaced timely, impurities can be carried along a blocking weak area to enter the expansion valve, and then the problem of blocking of the expansion valve is possibly caused, and therefore the flow adjustment precision of the refrigerant is reduced, the existing dry filters are integrated or the filter screen is detachable, but no matter what type of dry filters are required to be replaced after the equipment is stopped, so that normal use is inconvenient, and experience of office staff is reduced when the equipment is stopped. Therefore, the invention provides the self-adaptive flow control device of the multi-split refrigerant distributor, which is not easy to cause impurity invasion into the expansion valve and refrigerant flow regulation failure in the equipment. Disclosure of Invention The self-adaptive flow control device of the multi-split refrigerant distributor is designed for solving the problems that impurities flow into an expansion valve to cause refrigerant flow regulation faults and the like due to blockage of a dry filter in the prior art. The technical scheme includes that the self-adaptive flow control device of the multi-split refrigerant distributor comprises a condenser and a dry filter connected with the outer side of the condenser, wherein an expansion valve is connected with one end of the dry filter, which is far away from the condenser, and a self-cleaning filtering mechanism is connected between the condenser and the dry filter through a pipeline; The self-cleaning filtering mechanism comprises a rotating blade and a cleaning assembly connected with the rotating blade in a transmission manner, wherein kinetic energy generated when a refrigerant medium flows is transmitted to the cleaning assembly to enable the cleaning assembly to reciprocate so as to clean impurities, a discharging assembly for discharging the cleaned impurities is arranged at the bottom of the cleaning assembly, the discharging assembly comprises a conveying part which is arranged in a reducing spiral manner and is used for conveying and extrudin