Abstract: Disclosed are a method of controlling a self-service washing machine, and a terminal and a system utilizing same. The method includes: outputting position information and state information of at least one peripheral washing machine; acquiring a target washing machine selected by a user; sending a reservation request to a server, wherein the reservation request includes a target time period and an identifier of the target washing machine input by the user so as to enable the server to schedule the target washing machine to provide a washing function for the user in the target time period; and receiving and outputting a reservation result fed back by the server.

Abstract: A microchannel heat exchanger (100) with improvement of dirt-resisting and anti-blocking is disclosed. The microchannel heat exchanger (100) includes at least two heat exchanger units (101, 102) vertically arranged in parallel with the top one being a first heat exchanger unit (101) and the bottom one being a second heat exchanger unit (102). Every heat exchanger unit (101, 102) includes: a first heat tube (103) and a second heat tube (104) oppositely arranged in the horizontal direction; and multiple flat tubes (105) extending between the first and second heat tubes (103, 104) and having both ends communicated with the first and second heat tubes (103, 104). The microchannel heat exchanger (100) also includes multiple fins (109) each arranged between and in contact with the neighboring flat tubes (105) of the same heat exchanger unit and extending from the first heat exchanger unit (101) to the second heat exchanger unit (102).

Abstract: A washing machine which has no need of adding detergent by the user and the washing method thereof the said washing method comprises balancing setting the PH surface tension electrical conductivity and hardness of the washing liquid in a certain range, washing in general automatic washing machine with the use of a high PH electrolyzed water combined with a regulator; in which the PH of the said washing liquid is in the range of 8.5-1 I, the electrical conductivity of it is in the range of 261 us/cm-875 us/cm the surface tension is in the range of 2540 mN/m, the hardness is in the range of 5-400 ppm, if necessary 0.20.

Abstract: A washing machine which has no need of adding detergent by the user and the washing method thereof the said washing method comprises balancing setting the PH surface tension electrical conductivity and hardness of the washing liquid in a certain range, washing in general automatic washing machine with the use of a high PH electrolyzed water combined with a regulator; in which the PH of the said washing liquid is in the range of 8.5-1 I, the electrical conductivity of it is in the range of 261 us/cm-875 us/cm the surface tension is in the range of 2540 mN/m, the hardness is in the range of 5-400 ppm, if necessary 0.20.