Composite throttle pipe
A technology of throttling tubes and short throttle tubes, which is applied in the direction of fluid circulation arrangements, mechanical equipment, refrigeration components, etc., can solve the problems of affecting production efficiency, many solder joints, and high cost, and achieve simple structure, few solder joints, and high material utilization. little effect
Inactive Publication Date: 2010-12-22
HISENSE HOME APPLIANCES GRP CO LTD
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Problems solved by technology
[0002] At present, household air conditioners on the market basically use capillary tubes as throttling components. This structure with capillary tubes as throttling components is not only cumbersome in manufacturing process, easy to deform, and difficult to assemble, but also has hidden dangers in the quality of refrigerant leakage due to many solder joints. , and high cost
[0003] Although there are related technologies that throttle valves and short throttle tubes are used as throttle components in household air conditioners recently, due to the fact that this structure must be vacuumed from the valve and injected with refrigerant during production, and the refrigerant is injected through throttling. The speed of the valve is slow, which directly affects the production efficiency
Method used
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] Such as figure 1 As shown, the present invention is composed of a pipeline 1, a refrigerant injection process pipe 2, a filter screen 3 and a short throttle pipe 4. The opening of the refrigerant injection process pipe 2 communicates with the pipeline 1 and is connected by welding. One end of the filter screen 3 is connected with the outlet pipe of the heat exchanger of the outdoor unit, and the short throttle pipe 4 is installed at the other end of the pipeline 1 connected to the shut-off valve, and is pressed into a whole with the outer wall of the pipeline 1 .
[0017] Pipeline 1 is made of copper pipe or steel pipe with an outer diameter of φ5mm to φ12mm and a wall thickness of 0.28mm to 1.5mm. Straight pipe or U-shaped pipe is used. The angle between the process pipes 2 is 5 degrees to 90 degrees; when the pipeline 1 is a U-shaped pipe, the...
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The invention discloses a compound throttle pipe, composed of a pipeline, a refrigerant-infusing process pipe, a filter screen and a throttle short pipe. The refrigerant-infusing process pipe is connected with the pipeline that is provided with the filter screen. One end of the pipeline is connected with an outlet pipe of a heat exchanger of an outdoor unit. The throttle short pipe is mounted on another end where the pipe and the check valve are connected. An air conditioner welds to close the refrigerant process pipe in a process of extracting vacuum and the refrigerant on a production line through the refrigerant-infusing process pipe after the refrigerant is infused. The compound throttle pipe of the invention has simple structure and is reliable in quality with less material and welding points, which has high production efficiency.
Description
technical field [0001] The invention belongs to the technical field of throttling of air conditioners, in particular to a composite throttling tube. Background technique [0002] At present, household air conditioners on the market basically use capillary tubes as throttling components. This structure using capillary tubes as throttling components is not only cumbersome in manufacturing process, easy to deform, and difficult to assemble, but also has hidden dangers in the quality of refrigerant leakage due to many solder joints. , and the cost is high. [0003] Although there are related technologies that throttle valves and throttle short tubes are used as throttle components in household air conditioners recently, due to the fact that this structure must be vacuumed from the valve and injected with refrigerant during production, and the refrigerant is injected through throttling. The speed of the valve is slow, which directly affects the production efficiency. Contents ...
Claims
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IPC IPC(8): F25B41/06
CPCF25B41/06F25B41/30
Inventor 冯利峰闫志恒
Owner HISENSE HOME APPLIANCES GRP CO LTD