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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

About Us

FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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US4457266A - Boiler control - Google Patents

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :US4457266A - Boiler control - Google Patents
  • Supply Capacity : 10 units/month :US4457266A - Boiler control - Google Patents
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • US Patent for Boiler and device for selective non

    Jan 12, 2016 · The boiler (1) has side tubed walls (2) enclosing an inner space (3) and a device for selective non catalytic reduction (7). The device for selective non catalytic reduction (7) has a lance (8) carrying a hose (9) having at least a nozzle (10) and a hose drive mechanism (11) for driving the hose within the lance. The lance (8) protrudes into the inner space (3) from a side …Get Price

  • Automatic boiler blowdown control - Google Patents

    A system for the control of solutes and suspended solids in boiler water which periodically samples the conductivity of boiler water in a cell located outside of the boiler walls. High conductivity opens the blow-down valve and allows fresh feed to enter until the conductivity drops to pre-determined levels. Low conductivity, usually indicating leaks and wasted boiler water, …Get Price


    [Translated] This refers to a process for the treatment of a must in a boiler, wherein said method comprises the steps of: (a) providing: a boiler (1) provided with an inlet (1u) suitable for feeding the must into the boiler and with an outlet (1d) suitable to flow the must out of the boiler, heating means (2) suitable to bring the must contained in the nearby boiler, or to the boiling Get Price

  • US4497283A - Boiler control - Google Patents

    The control of the actual liquid level in a boiler is accomplished by using the flow rate of the fuel to the combustion system associated with the boiler to generate a signal which is utilized to bias a control signal generated in response to steam flow rate and the output from a conventional level controller in such a manner that swell and shrink caused by changes in fuel flow rate is Get Price

  • US4465026A - Automatic boiler blowdown - Google …

    US4465026A - Automatic boiler blowdown system including blowdown sequence control - Google Patents A blowdown system for controlling blowdown of a …Get Price

  • Economic efficient desulfurizer for CFB (Circulating fluid

    Mar 19, 2014 · DONGFANG BOILER GROUP CO LTD OF DONGFANG ELECTRIC CORP. Dates: Grant . 2014/08/27. and thus the advantages of the CFB boiler on a contamination control aspect is kept. Google Patents. 2 Full Text. Help. New Window. Espacenet. "Google Patents Research Data" by Google, based on data provided by IFI CLAIMS Patent Services and …Get Price

  • Corrosion inhibitor for boiler and corrosion control

    Aug 13, 1997 · This web page summarizes information in PubChem about patent KR-19990016150-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.Get Price

  • US5732664A - Boiler control system - Google Patents

    US5732664A US08/697,899 US69789996A US5732664A US 5732664 A US5732664 A US 5732664A US 69789996 A US69789996 A US 69789996A US 5732664 A US5732664 A US 5732664A Authority US United States Prior art keywords steam air flow boiler control Prior art date Kefid Legal status (The legal status is an assumption and is not a legal conclusion.Get Price

  • US4457847A - Google Patents

    A method of treating hardness present in boiler waters which are in contact with heat transfer surfaces to prevent and remove scale caused by such hardness which comprises treating such waters with a water-soluble anionic vinyl polymer containing at least 30% by weight of carboxylate functionality with said polymer having a molecular weight within the range of 500-50,000 and …Get Price

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