Method for judging filth blockage of filter screen of vehicle-mounted air conditioner
A vehicle-mounted air conditioner and filter technology, which is applied to railway car body parts, railway vehicle heating/cooling, transportation and packaging, etc., can solve the problems of inaccurate forecast data and high cost, reduce production and maintenance costs, and improve the accuracy of early warning The effect of improving the efficiency and improving the comfort of the vehicle
Active Publication Date: 2022-04-29
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
[0005]
In the prior art, the judgment and early warning of air conditioner filter dirty clogging are usually realized by installing a differential pressure sensor in the air conditioner unit, which has the disadvantages of high cost and inaccurate prediction data.
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[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] The invention provides a method for judging dirt and blockage of a filter screen of a vehicle air conditioner. The air conditioner includes a controller, a pressure wave control device and a fresh air valve. The controller calculates the filter screen according to the force difference provided by the received pressure wave control device and a pre-stored formula. Dirty blockage coefficient, and according to the calculation results and the built-in filter blockage judgment program to determine whether the filter needs to be replaced.
[0029] This embodiment takes an EMU train as an example to introduce the specific operations of the method for judging the dirty blockage of the filter screen of the vehicle air conditioner provided by the present invention. In order to ensure the stability of the pressure inside the EMU, a pressure...
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The invention provides a filth blockage judgment method for a filter screen of a vehicle-mounted air conditioner, the air conditioner comprises a controller, a pressure wave control device and a fresh air valve, and the controller calculates a filth blockage coefficient of the filter screen according to a received force metering difference provided by the pressure wave control device and a pre-stored formula; and whether the filter screen needs to be replaced or not is judged according to a calculation result and a built-in filter screen filth blockage judgment program. Compared with the prior art, the filth blockage judgment method for the filter screen of the vehicle-mounted air conditioner has the advantages that the pressure data provided by the pressure wave control device and the related operation data of the vehicle and the air conditioner are directly adopted for modeling, filth blockage judgment and early warning of the filter screen are achieved on the basis that sensors are not added, the early warning accuracy is improved, and the working efficiency is improved. And an effective basis is provided for the cleaning or replacement period of the air conditioner filter screen.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to a method for judging dirt and blockage of a filter screen of a vehicle air conditioner. Background technique [0002] At present, most of the hybrid air filters in the air conditioning system of rail vehicles are reusable non-woven filters. During the working process of the air conditioning system, a large amount of dust, dirt, etc. will accumulate on the filter, and a large number of bacteria will breed, affecting the carriage. The air quality in the interior is harmful to the health of passengers. [0003] After the filter screen is dirty and blocked to a certain extent, the positive pressure in the car will decrease, which will reduce the air supply volume of the air conditioner and increase the energy consumption of the air conditioner system. Therefore, the air-conditioning air filter needs to be cleaned regularly. At present, the condensation filters installed on...
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IPC IPC(8): B61D27/00
CPCB61D27/0018Y02A50/2351
Inventor 刘效宙李江春周新喜齐凯文王学亮
Owner CRRC QINGDAO SIFANG CO LTD