Title:
AIR CLEANING NEGATIVE PRESSURE DEVICE
Document Type and Number:
Japanese Patent JP2023038718
Kind Code:
A
Abstract:
To provide an air cleaning negative pressure device which can accurately perform a performance evaluation test in a normal use state of an air cleaning filter, can enhance the workability of the daily maintenance of the filter unit, and is compact in a constitution.SOLUTION: An air cleaning negative pressure device has a housing constitution composed of: a filter chamber 20 having a cleaning filter 21; a rear-side back-face chamber 30; and a fan chamber 10 having a fan 12. Therein, a measurement port 40 for performing a performance evaluation of the cleaning filter is arranged in a substantially center part of the back-face chamber, and a connection part 41a connected to the measurement port 40 and a cover 42 for the maintenance work is arranged on a front face of the box body, thereby, the air cleaning negative pressure device can be installed easily in such a compact constitution, achieving both of enhancement in accuracy of a performance evaluation test of the air cleaning filter and enhancement in workability of daily maintenance.SELECTED DRAWING: Figure 6
Inventors:
ADACHI TOHIKO
KANEKO TAKESHI
KANEKO TAKESHI
Application Number:
JP2021145588A
Publication Date:
March 17, 2023
Filing Date:
September 07, 2021
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD
International Classes:
F24F7/003; A61L9/16; B01D46/00; F24F7/007; F24F7/06; F24F8/108; F24F13/08; G01N15/06; G01N15/08
Attorney, Agent or Firm:
Seiryo Patent Attorneys Corporation