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1. US20110168353 - Front end water box with on-line rubber ball cleaning function in the tubular condenser of a water cooled chiller

Office United States of America
Application Number 12935815
Application Date 01.09.2009
Publication Number 20110168353
Publication Date 14.07.2011
Grant Number 08646514
Grant Date 11.02.2014
Publication Kind B2
IPC
F28G 1/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OF BOILERS
1Non-rotary, e.g. reciprocated, appliances
12Fluid-propelled scrapers, bullets, or like solid bodies
Applicants Ni Yonggang
Inventors Ni Yonggang
Agents Hamre, Schumann, Mueller & Larson, P.C.
Title
(EN) Front end water box with on-line rubber ball cleaning function in the tubular condenser of a water cooled chiller
Abstract
(EN)

A front end water box with an on-line rubber ball cleaning function in a tubular condenser of a water cooled chiller is provided. A front end water box and an automatic on-line rubber ball cleaning device are integrated. Besides the structure of a normal front end water box, a ball receiving device, a rubber ball collection cavity, a ball sending device, a division drainage device, a ball sending division separator, a ball observer, an automatic rubber ball receiving-and-sending control valve, an automatic terminal temperature difference (TTD) monitoring and recording device, and an automatic rubber ball cleaning controller are further included. Therefore, division cleaning, on-line observation, and rubber ball replacement are automatically realized, the operation TTD of the chiller is automatically displayed and recorded, and a function of manually adjusting the cleaning frequency, period, and start and stop is achieved, so as to ensure that the TTD increase of the chiller does not exceed 0.3° C., so that the chiller is always in a high efficiency operation status. Also, the front end water box has a simple and compact structure, realizes receiving, sending, and cleaning processes of the rubber balls completely depending on hydraulic principles and a pressure difference between inlet and outlet cooling water, needs no external power, is energy saving and environmentally friendly, and is able to be delivered with a water cooled chiller.

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