US 11,913,476 B2
Compressor system
Takanori Shibata, Tokyo (JP); Akihiko Saito, Tokyo (JP); and Keisuke Yamamoto, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/438,621
Filed by Mitsubishi Power, Ltd., Kanagawa (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/012977
§ 371(c)(1), (2) Date Sep. 13, 2021,
PCT Pub. No. WO2020/196504, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-059225 (JP), filed on Mar. 26, 2019.
Prior Publication US 2022/0220978 A1, Jul. 14, 2022
Int. Cl. F04D 27/00 (2006.01); F04D 27/02 (2006.01); F04D 29/66 (2006.01); F04D 29/26 (2006.01); F04D 29/40 (2006.01)
CPC F04D 29/661 (2013.01) [F04D 27/001 (2013.01); F04D 27/0223 (2013.01); F04D 27/0246 (2013.01); F04D 27/0269 (2013.01); F04D 29/266 (2013.01); F04D 29/403 (2013.01)] 18 Claims
OG exemplary drawing
 
15. A compressor system, comprising:
a compressor having:
an upstream region into which a working fluid flows,
a downstream region that communicates with the upstream region and in which a pressure of the working fluid is greater than that in the upstream region, and
inlet guide vanes that are provided further upstream than the upstream region and are capable of altering a flow rate of the working fluid flowing into the upstream region;
detection devices, at least one of which is provided in the downstream region, for detecting a physical quantity of the working fluid; and
a control device for adjusting, on the basis of changes in the physical quantity detected by the detection devices, an opening degree of the inlet guide vanes,
wherein each of the detection devices includes a pair of temperature detection units that are arranged in a flow direction of the working fluid; and
wherein a heating unit that is disposed between the pair of temperature detection units and heats the working fluid,
wherein the physical quantity includes a temperature difference of the working fluid detected by the pair of temperature detection units, and
wherein when a command for reducing a load of the compressor is issued, the control device determines a speed at which each of the inlet guide vanes is closed on the basis of a magnitude of the physical quantity.