Qiuyang
Qiuyang Cao, Zhejiang CN
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20140042104 | PROCESS FOR FEED-WATER OXYGENATING TREATMENT IN BOILER IN POWER STATION - The present invention provides a process of oxygenated feed-water treatment of boilers in power station, carried out under an OT treatment process, suitable for both the monotube type boiler and the drum type boiler, and comprising an oxygenation stage comprising: a normal oxygenation converting stage and a decreased oxygenation film-supplementing stage; the normal oxygenation converting stage is a stage in which the feed water system is oxygenated both at the outlet of a condensate polishing system and at the inlet of a feed water pump of a high pressure feed water system, and the concentration of dissolved oxygen in the main steam is controlled to be ≦5 μg/L; the decreased oxygenation film-supplementing stage is a stage in which, after an oxide film is formed in the feed water system, the amount of oxygenation at the high pressure feed water system is decreased so that the amount of the oxygen added is only for supplementing and maintaining the oxide film, while the concentration of dissolved oxygen in the main steam is controlled to be ≦5 μg/L. It can ensure that a dense protection film can be formed and maintained on the metal surface of the pipes in a feed water system, thereby reducing the iron content in the feed water; excessive oxygen is prevented from entering the high temperature heating surface and causing the peeling off of the oxide skin; and the amount of oxygen consumed is significantly reduced, thereby decreasing the amount of maintenance. | 02-13-2014 |
Qiuyang Chen, Shaanxi CN
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20110094720 | SHELL-AND-TUBE HEAT EXCHANGER WITH HELICAL BAFFLES - The present invention provides a single shell-pass shell-and-tube heat exchanger with helical baffles, where within a single pitch, the helical baffles are separated into inner and outer parts along the radial direction of the shell. In the central portion of the inner space of the shell, an inner non-continuous helical form is employed; in other portion outside the central portion, doughnut shaped helical baffles with continuous curved surfaces are arranged to form an outer continuous helical baffle, and the outer helical baffles are arranged to surround the inner helical baffles. Furthermore, the present invention relates to a multiple shell-pass shell-and-tube heat exchanger with helical baffles, in which complete continuous helical baffles are provided in shell-sides other than the inner shell-pass, while non-continuous helical baffles or other flow guide means are employed in the inner shell-pass. The present invention makes flow patterns of fluids on the shell side more desirable, leading to a reduced flow pressure drop, and mitigate fouling, thus the heat transfer rate is improved and the service life of the heat exchanger is increased. The present invention also provides two methods for manufacture of continuous helical baffles, which ensure the concentricity of the tube bundle holes on each continuous helical baffle so as to facilitate installation of heat exchange tube bundles. | 04-28-2011 |
Qiuyang Wei, Beijing CN
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20130232436 | METHOD, ELECTRONIC MAP, AND MOBILE TERMINAL FOR GENERATING MAP PHONE BOOK - Embodiments of the present invention disclose a method, an electronic map, and a mobile terminal for generating a map phone book. The method includes: obtaining location related information of a contact; matching the location related information with location information in an electronic map; if the matching succeeds, adding the contact information of the contact to the location in the electronic map; and generating a map phone book that includes the contact information of the contact. In the embodiments of the present invention, location related information of a contact is obtained and matched with location information in an electronic map; and a map phone book is generated. In this way, contact information can be visually embodied in the form of a map, which makes it convenient for a user to query for contact information in the form of a map. | 09-05-2013 |
20140106733 | CONFIGURING APPLICATION PARAMETER OF MOBILE TERMINAL - Embodiments of the present application disclose a method, related apparatus, and system for configuring an application parameter of a mobile terminal, so as to configure an application parameter of a mobile terminal conveniently. The method includes: establishing, by the mobile terminal, a near field communication (NFC) connection with a configurator; negotiating, between the mobile terminal and the configurator, a type of an application parameter to be configured and a manner for receiving the application parameter through the NFC connection; receiving, by the mobile terminal, the application parameter from the configurator according to the negotiated manner; and performing, by the mobile terminal, an application parameter configuration for the mobile terminal according to the received application parameter. | 04-17-2014 |
20140295765 | Method for Transmitting Data Between Terminals and Terminal - A method for transmitting data between terminals is provided. The method includes: a sending terminal determines data to transmit and a receiving terminal corresponding to a selected contact from an address book for receiving the data, if the sending terminal finds a radio frequency identifier of the receiving terminal, the data is transmitted via a Wireless Fidelity (WiFi) Direct connection established between the sending terminal and the receiving terminal. | 10-02-2014 |