A method to realize the pressure drop requirement and flow requirement of refrigeration
A pressure and flow technology, applied in the field of realizing the pressure drop requirements and flow requirements of refrigeration, can solve the problems of increasing the probability of welding joint leakage, increase the noise of the one-way valve, increase the production cost, etc., achieve significant technical effects and application value, reduce welding mouth, to avoid the effect of vibration noise
Inactive Publication Date: 2018-01-16
SOUTH CHINA UNIV OF TECH
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[0031] figure 1 It is a structural schematic diagram of the prior art.
[0032] figure 2 It is a structural schematic diagram of the serial bidirectional throttle short tube mechanism of the present invention. The present invention includes a metal pipe 6, and a multi-stage throttling spool spool 5 axially arranged in the metal pipe 6 at intervals; the space between each section of the choke short pipe spool 5 forms a flash gas-liquid chamber 52 ;
[0033] The axes of the refrigerant passages 51 of each throttle short tube spool 5 are coaxial with the axes of the metal pipe 6;
[0034] The inner diameter of the refrigerant flow channel 51 from the throttle short tube spool 5 at the initial end to the throttle short tube 51 at the end gradually increases;
[0035] When the air-conditioning system is cooling, the refrigerant enters from the throttle short tube spool 5 at the initial end, and then flows out from the throttle short tube spool 5 at the end;
[0036] When the ...
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The invention discloses a series-type two-way throttle short pipe mechanism and a throttle method thereof, comprising a metal pipe, and multi-stage throttle short pipe valve cores axially arranged in the metal pipe at intervals from each other; each stage of throttle short pipe valves The space between the cores forms a flash vapor-liquid chamber; the axis of the refrigerant flow path of each section of the throttle spool spool is coaxial with the axis of the metal tube; The inner diameter of the refrigerant flow channel that flows through the spool spool increases gradually; when the air-conditioning system is cooling, the refrigerant enters from the spool spool at the initial end and flows out from the spool spool at the end; when the air conditioner When the system is heating, the refrigerant enters through the throttle spool spool at the end, and then flows out through the throttle spool spool at the start end. Adopting the above-mentioned simple and easy-to-use structure makes it unnecessary to install a one-way valve in the existing heating and cooling air conditioner, thereby reducing production costs; reducing welding joints and reducing hidden dangers of leakage; and avoiding vibration and noise generated by the one-way valve.
Description
technical field [0001] The invention relates to a throttling mechanism of an air-conditioning system, in particular to a method for realizing the pressure drop and flow requirements of refrigeration. Background technique [0002] In cooling and heating air conditioners, due to the different operating conditions of cooling and heating, the refrigerant flow requirements are different under the two operating modes. Heating is achieved by flowing through different capillary lengths. Usually used in the design figure 1 Structure. When the air conditioner is cooling, the refrigerant flows in from the A end of the main capillary tube 1, opens the one-way valve 3, and flows directly through the one-way valve 3 without going through the auxiliary capillary tube 2 to the E end. When heating, the refrigerant flows in from the E end, and the one-way valve 3 is closed. Due to the blocking effect of the one-way valve, the refrigerant enters the auxiliary capillary tube 2 through the D ...
Claims
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IPC IPC(8): F25B41/06F25B41/38
CPCF25B41/30
Inventor 汪双凤刘腾庆徐言生张新强周遊
Owner SOUTH CHINA UNIV OF TECH