Domestic air conditioner throttle pipe

Abstract

The invention relates to a throttle pipe for a household air-conditioner, which comprises a valve body, a static valve core and movable valve cores. The throttle pipe is characterized in that only one static valve core is arranged, and is provided with a first pore channel and a second pore channel; a first movable valve core and a second movable valve core are provided with an axial perforative pore respectively; a left end outlet of the first pore channel is aligned with the pore of the first movable valve core; a right end outlet of the second pore channel is aligned with the pore of the second movable valve core; the throttle pipe also comprises a first blocking part and a second blocking part which are arranged on two ends of the valve body; the first movable valve core is arranged between the first blocking part and the static valve core; and the second movable valve core is arranged between the second blocking part and the static valve core. With the structure of two movable valve cores, the throttle pipe has two processes of dynamic throttling during working process with good throttling effect. The paths of the fluid passing from the two ends of the valve body are staggered, and are not in the same axial line so as to change the situation that paths of refrigerating fluid of the prior throttle pipe flowing from two ends of the valve body are overlapped.

Description

Technical field [0001] The invention belongs to the technical field of air conditioners, and particularly relates to a household air conditioning flow pipe. Background technique [0002] The throttle structure in the existing small refrigeration equipment such as household air conditioners generally adopts a throttle valve or a throttle block structure. For example, a Chinese utility model patent "Throttle Valve" with a patent number of ZL97236534.6 (publication number CN2295085Y) discloses A throttle valve, which is characterized in that two opposed valves A and B are fixed in the housing. a: The valve A includes a valve body with a gasket fixed at its end, and a through hole is opened in the middle of the valve body. The aperture part has a valve core, the middle of the valve core is opened with a spray hole, and a filter screen is connected to the opposite end of the valve body; b: Valve B includes a valve body with a gasket fixed at the end, and the middle of the valve body i...

AI Technical Summary

Problems solved by technology

There is only one auxiliary orifice plate (equivalent to a moving block or a moving valve core) in the throttling device, which can only perform throttling once, which is not conducive to meeting the throttling intensity required for household air conditioning refrigeration and heating; There is a static valve core in the throttling device (relative to the valve seat or the main orifice or baffle), which either has only one capillary hole running through the shaft center, or has only one overflow hole running through the shaft center, from the left end of the valve body or The path of the refrigerant flowing through the static valve core at the right end overlaps, and there is little change in the flow path of the refrigerant during the left and right flow process, which is unfavorable for the change of the refrigerant flow rate during the cooling and heating of the household air conditioner. The throttling effect of the flow tube can be further improved

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