Natural gas temperature and pressure regulating system based on recovering pressure energy and absorbing heat from ultralow temperature ambient environment
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United States of America Patent
Stats
-
Jul 7, 2020
Grant Date -
N/A
app pub date -
Dec 11, 2017
filing date -
Nov 9, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The natural gas temperature and pressure regulating system based on recovering pressure energy and absorbing heat from ultralow temperature ambient environment. A pressure driven heating system of pipeline natural gas pressure regulation or liquid natural gas regasification process. This system adopts vortex tube, ambient air heat exchanger and ejector that constitute the pressure driven heating unit to replace the existing heater. The two kinds of pressure driving devices of an ejector and a vortex tube are adopted, transmit the low temperature NG at the cold end of the vortex tube into the ambient air heat exchanger to absorb heat from the ambient continuously; at the same time, make temperature of the gas from the hot end of the vortex tube increase to meet the required temperature of pipeline directly, then achieve the purpose of no heater energy consumed.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
CN | B | CN107940235 | Nov 09, 2017 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | Ultra-low temperature surroundings based on recycling incoming-flow pressure energy take hot day right controlled atmosphere temperature voltage-regulating system | Oct 16, 2018 | |||
WO | A1 | WO2019090885 | Dec 11, 2017 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | 基于回收来流压力能的超低温环境取热天然气调温调压系统 | May 16, 2019 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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DALIAN UNIVERSITY OF TECHNOLOGY | DALIAN LIAONING 116024 |
International Classification(s)

- 2017 Application Filing Year
- F17D Class
- 154 Applications Filed
- 111 Patents Issued To-Date
- 72.08 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Guo, Xiangji | Dalian, CN | 1 | 1 |
# of filed Patents : 1 Total Citations : 1 | |||
Zhang, Bo | Dalian, CN | 1006 | 7322 |
# of filed Patents : 1006 Total Citations : 7322 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F17D Class
- 75.34 % this patent is cited more than
- 5 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 7, 2028 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 7, 2032 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Jul 07, 2020 | P | Publication | |
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Mar 05, 2020 | P | Published | |
Oct 31, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: SMAL); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Jul 22, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Jul 12, 2019 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZHANG, BO;GUO, XIANGJI;REEL/FRAME:049930/0849 Owner name: DALIAN UNIVERSITY OF TECHNOLOGY, CHINA Effective Date: Jul 12, 2019 |
Dec 11, 2017 | F | Filing | |
Nov 09, 2017 | PD | Priority Date |

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