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A Refrigeration Type Duplex Hydrogen Gas Drier Davice Adaptable To Turbogenerators

The gas is passed through a precooler & chiller where it is cooled to atemperature of about 2 - 3°C. The excess moisture gets condensed & is drainedout. The hydrogen circuit & refrigerant. Freon 22 circuit are independent. Forsafety reason, the electrical equipment & hydrogen carrying equipment/pipelinesare separated from each other. The complete equipment is housed on a compactkit including a control cabinet. The equipment is easy to install, operate &maintain since it shall require only single push button start. The moisture is separated from gas in the form of water droplets and is effected in draincollector and then the dried gas is returned to generator. Apart from moisture,the drier also condenses any oil vapours present in the H2 gas. The deviceemploys a precooler, whereby the outgoing cold Hz gas from the evaporatorpicks up heat from the incoming hot H2 gas to improve thermal efficiency. Thus,the present invention provides a refrigeration type duplex hydrogen gas drierdevice adaptable to turbogenerators comprising a gas-to-gas heat exchangerhaving a primary side and a secondary side the heat exchanger being flowablyconnected to the generator of the turbogenerator, the primary side receiving thehot moist hydrogen gas from the turbogenerator and pre-cooled on thesecondary side; a freon-to-gas heat exchanger for receiving the pre-cooledhydrogen gas from the gas-to-gas heat exchanger and further cooling the gas; acondenser for supply of refrigerant to the freon-to-gas heat exchanger; acompressor for compressing and cooling the gaseous freon having the freon-to-gas heat exchanger; and a condensate chamber for collection of excess moisturedischarged by the H2 gas, the cold dry h2 gas being recirculated via the gas-to-gas heat exchanger in which the h2 gas heated to attain a temperature belowthe inlet gas temperature before being led to the turbogenerator.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
31 October 2005
Publication Number
34/2007
Publication Type
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2009-09-23
Renewal Date

Applicants

BHARAT HEAVY ELECTRICALS LIMITED
REGIONAL OPERATIONS DIVISION (ROD), PLOT NO: 9/1, DJBLOCK 3RD FLOOR, KARUNAMOYEE, SALT LAKE CITY, KOLKATA-700091, HAVING ITS REGISTERED OFFICE AT BHEL HOUSE, SIRI FORT, NEW DELHI-110049, INDIA

Inventors

1. KULWANT RAI GUPTA
EME, BHEL, HARDWAR
2. ROSHAN LAL VYAS
EME, BHEL, HARDWAR
3. INDERJIT SINGH
EME, BHEL, HARDWAR

Specification

Documents

Application Documents

# Name Date
1 988-kol-2005-granted-specification.pdf 2011-10-07
2 988-kol-2005-granted-reply to examination report.pdf 2011-10-07
3 988-kol-2005-granted-gpa.pdf 2011-10-07
4 988-kol-2005-granted-form 5.pdf 2011-10-07
5 988-kol-2005-granted-form 3.pdf 2011-10-07
6 988-kol-2005-granted-form 2.pdf 2011-10-07
7 988-kol-2005-granted-form 13.pdf 2011-10-07
8 988-kol-2005-granted-form 1.pdf 2011-10-07
9 988-kol-2005-granted-examination report.pdf 2011-10-07
10 988-kol-2005-granted-drawings.pdf 2011-10-07
11 988-kol-2005-granted-description (complete).pdf 2011-10-07
12 988-kol-2005-granted-correspondence.pdf 2011-10-07
13 988-kol-2005-granted-claims.pdf 2011-10-07
14 988-kol-2005-granted-abstract.pdf 2011-10-07
15 988-KOL-2005-FORM-27-1.1.pdf 2011-10-07
16 988-KOL-2005-FORM 27.pdf 2011-10-07
17 00988-kol-2005-form 3.pdf 2011-10-07
18 00988-kol-2005-form 2.pdf 2011-10-07
19 00988-kol-2005-form 1.pdf 2011-10-07
20 00988-kol-2005-drawings.pdf 2011-10-07
21 00988-kol-2005-description complete.pdf 2011-10-07
22 00988-kol-2005-claims.pdf 2011-10-07
23 00988-kol-2005-abstract.pdf 2011-10-07
24 988-KOL-2005-FORM-27.pdf 2012-07-23
25 988-KOL-2005-(01-04-2015)-FORM-27.pdf 2015-04-01
26 988-KOL-2005-(28-03-2016)-FORM-27.pdf 2016-03-28
27 Other Patent Document [23-03-2017(online)].pdf_9.pdf 2017-03-23
28 Other Patent Document [23-03-2017(online)].pdf 2017-03-23
29 Form 27 [30-03-2017(online)].pdf 2017-03-30
30 988-KOL-2005-RELEVANT DOCUMENTS [16-03-2018(online)].pdf 2018-03-16
31 988-KOL-2005-RELEVANT DOCUMENTS [23-03-2019(online)].pdf 2019-03-23
32 988-KOL-2005-01-02-2023-RELEVANT DOCUMENTS.pdf 2023-02-01
33 988-KOL-2005-01-02-2023-LP.pdf 2023-02-01

ERegister / Renewals

3rd: 15 Feb 2010

From 31/10/2007 - To 31/10/2008

4th: 15 Feb 2010

From 31/10/2008 - To 31/10/2009

5th: 15 Feb 2010

From 31/10/2009 - To 31/10/2010

6th: 05 Oct 2010

From 31/10/2010 - To 31/10/2011

7th: 22 Sep 2011

From 31/10/2011 - To 31/10/2012

8th: 27 Sep 2012

From 31/10/2012 - To 31/10/2013

9th: 03 Oct 2013

From 31/10/2013 - To 31/10/2014

10th: 09 Oct 2014

From 31/10/2014 - To 31/10/2015

11th: 24 Sep 2015

From 31/10/2015 - To 31/10/2016

12th: 08 Oct 2016

From 31/10/2016 - To 31/10/2017

13th: 10 Oct 2017

From 31/10/2017 - To 31/10/2018

14th: 29 Sep 2018

From 31/10/2018 - To 31/10/2019