Abstract: Disclosed is a filtering device. The device includes a main body part and a filter element assembly, where the main body part has a mounting cavity for accommodating the filter element assembly, further includes a base and a screen cover arranged as a cover of the base, and at least one rack for fixing the filter element assembly is disposed on an inner wall of the screen cover and/or the base; and the filter element assembly includes a folded filter element arranged in a folded shape, and a rubber strip arranged on the folded filter element for maintaining the shape of the folded filter element to facilitate quick assembly and disassembly of the folded filter element. Further, the screen cover and the base are connected through various snap-fit assemblies, without requiring additional connecting members for fixing them, which is convenient for disassembly and assembly, and has a simple structure.

Abstract: A ground source heat pump integrated controller includes a main module that has pre-integrated multiple main machines, pumps and valves according to the rated load of the main module, and a number of extended modules that have pre-integrated multiple main machines, pumps and valves according to a rated load of the extended modules. The main module and extended modules both are provided with a plurality of analog contacts and digital contacts, and the extended modules are connected, via the analog and digital contacts, to the main module according to the rated load of the ground source heat pump system. The advantage of the ground source heat pump integrated controller lies in that after system load is calculated according to floor area, multiple extended modules are connected to one main module, which increases the capacity of the main module and thus meets the requirement of system load.

Abstract: The present invention relates to a ground source heat pump integrated controller and the method of achieving the same. The ground source heat pump integrated controller of the present invention comprises a main module that has pre-integrated multiple main machines, pumps and valves according to the rated load of the main module and a number of extended modules that have pre-integrated multiple main machines, pumps and valves according to the rated load of the extended modules, said main module and extended modules both being provided with a plurality of analog contacts and digital contacts, and said extended modules being connected, via the analog and digital contacts, to the main module according to the load of the ground source heat pump system. The advantage of the present invention lies in that after system load is calculated according to floor area, multiple extended modules are connected to one main module, which increases the capacity of the main module and thus meets the requirement of system load.