Noise reduction device based on multi-connected air-conditioning system
A technology of multi-connected air conditioner and shunt device, applied in the direction of noise suppression, high-efficiency regulation technology, fluid circulation arrangement, etc., can solve the problems of increasing indoor unit volume, high cost, high design and production cost, and achieve improved utilization rate , good consistency and simple structure
Active Publication Date: 2015-12-02
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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Problems solved by technology
However, this technical solution needs to install a shunt device consisting of capillary tubes, pressure regulators, and multiple pressure sensors in the indoor unit, and the cost of achieving noise reduction is high; at the same time, the deployment of capillary tubes, pressure regulators, and pressure sensors increases indoor The volume of the indoor unit, in the case of extremely limited indoor space, the increase in the volume of the indoor unit is equivalent to reducing the utilization rate of the indoor space, which is also not conducive to the miniaturization of the indoor unit; indoor units for different operating conditions and different operating parameters are required. The capillary tubes are designed separately, so that the capillary tubes cannot be mass-produced, and the design and production costs are high; furthermore, due to the special structure of the capillary tubes, not only the processing technology is complicated, but also the installation and debugging operations are inconvenient, which increases the maintenance cost
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[0040] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] In the existing indoor unit, a capillary tube is arranged in front of the electronic expansion valve, and a pressure regulator connected in parallel with the electronic expansion valve is installed. The pressure regulator adjusts the structural parameters of the capillary tube according to the fluid pressure monitored by the pressure sensor, reducing the The refrigerant pressure difference before and after throttling by the electronic expansion valve achieves the purpose of no...
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The invention discloses a flow splitting device for noise reduction based on a multi-connected air-conditioning system. In the present invention, the diverter device includes: an electronic expansion valve and a diverter. A stepped through hole for accommodating the diverter body is opened in the diverter housing, and the top end communicates with the bottom end of the input unit. The diameter of the stepped hole in the lower part is larger than that in the upper part of the diverter housing. The diameter of the stepped hole; the center of the diverter body is provided with a stepped through hole for throttling and reducing the pressure of the refrigerant along the refrigerant inflow direction. By applying the present invention, the cost of noise removal can be reduced, and the utilization rate of indoor space can be improved.
Description
technical field [0001] The invention relates to air-conditioning control technology, in particular to a noise-reducing splitter device based on a multi-connected air-conditioning system. Background technique [0002] In the indoor unit of the multi-connected air conditioning system, in the cooling operation state, the electronic expansion valve is used as a throttling device for the refrigerant fluid circulation of the indoor unit. By adjusting its opening, the refrigerant circulation amount of the indoor unit can be controlled, thereby realizing The purpose of temperature and humidity adjustment is to create a comfortable working and living environment for users. [0003] The refrigerant fluid is a mixed fluid formed of a liquid refrigerant and a gas refrigerant. In the process of refrigerant fluid circulation, due to the small diameter of the throttling hole of the electronic expansion valve, the refrigerant fluid before and after throttling has a large pressure differenc...
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IPC IPC(8): F25B41/00F25B41/06F24F13/24F25B41/34F25B41/42
CPCY02B30/70
Inventor 王志成李虎王远鹏
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST