CN212776830U - Natural gas calorific capacity dynamic monitoring adjusting device - Google Patents
Natural gas calorific capacity dynamic monitoring adjusting device Download PDFInfo
- Publication number
- CN212776830U CN212776830U CN202020865955.4U CN202020865955U CN212776830U CN 212776830 U CN212776830 U CN 212776830U CN 202020865955 U CN202020865955 U CN 202020865955U CN 212776830 U CN212776830 U CN 212776830U
- Authority
- CN
- China
- Prior art keywords
- gas
- lng
- sampler
- electric valve
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000003345 natural gas Substances 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 61
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000002156 mixing Methods 0.000 claims abstract description 44
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002808 molecular sieve Substances 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000006200 vaporizer Substances 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 3
- 230000020169 heat generation Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000003949 liquefied natural gas Substances 0.000 description 39
- 239000002737 fuel gas Substances 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- -1 Shaangan Ning gas Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Abstract
The utility model discloses a natural gas calorific capacity dynamic monitoring adjusting device comprises second electric valve and third electric valve, nitrogen gas input pipeline, LNG input pipeline, gas main line, online gas chromatograph, PLC control box and the computer of dynamic mixer and built-in two control mixing pipeline switches, and the equipment on the nitrogen gas input pipeline includes: compressor, first filter, first electric valve, molecular sieve adsorber, oxygen analysis appearance, first pressure regulator, first pressure transmitter, second ultrasonic flowmeter, second temperature transmitter, first flow regulator and first check valve, the equipment on the LNG input pipeline includes: the LNG storage tank, a fourth electric valve, an LNG vaporizer, a second filter, a second pressure regulator, a fourth pressure transmitter, a fourth ultrasonic flowmeter, a fourth temperature transmitter, a second flow regulator, a second check valve and a second sampler; the problem of quick, dynamic mixing add gas is solved, the safety risk that probably appears in the gas mixture has been avoided.
Description
Technical Field
The utility model relates to a gas field particularly, relates to a natural gas calorific capacity dynamic monitoring adjusting device.
Background
In the domestic gas industry, as the sources of natural gas are more and more, in addition to pipeline natural gas such as Shaangan Ning gas, Tukumamestan gas, Russia gas and the like, Liquefied Natural Gas (LNG), new gas sources such as coal gas, landfill gas, biomass gas and the like continuously enter, and the gas quality compositions of the gas sources are different, and the heating values are also different. The heating value of the town natural gas in different seasons and different time periods is continuously changed due to multiple gas sources, but the gas equipment is operated safely and stably, and the heating value of the gas is required to be stable and stabilized within a certain range due to low emission of nitrogen oxides; in addition, with the implementation of natural gas energy metering in the future, the heating value of town natural gas is one of the necessary conditions, because it is not practical to install a large number of high-price online gas chromatographs in a complex town pipe network, so that the heating value of town natural gas is necessarily stabilized, and when the heating value of gas is too low, LNG or LPG with high heating value should be blended into the gas; if the calorific value of the fuel gas is too high, nitrogen gas, air, or the like having a low calorific value should be blended. Therefore, how to dynamically monitor the change of the calorific value of the main gas source and accurately control the amount of the mixed gas is necessary, but no special dynamic natural gas calorific value adjusting device is available at present. Meanwhile, the fuel gas belongs to explosive gas, and how to ensure the safety of the blending process is also very important research content.
The gas mixing device is used for dynamically monitoring the gas heating amount, is quickly, accurately and uniformly adjusted, does not exceed a set range, solves the problem of quickly and dynamically mixing and adding gas, meets the technical requirement of finely adjusting the gas heating amount by micro-adjusting the main gas source components, and avoids the safety risk possibly occurring in gas mixing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a natural gas calorific capacity developments control adjusting device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a natural gas calorific capacity dynamic monitoring adjusting device is characterized in that: by dynamic mixer and built-in two second electric valve and the third electric valve of controlling mixing pipeline switch, nitrogen gas input pipeline, LNG input pipeline, gas main line, online gas chromatograph, PLC control box and computer and constitute, equipment on the nitrogen gas input pipeline includes: compressor, first filter, first electric valve, molecular sieve adsorber, oxygen analysis appearance, first pressure regulator, first pressure transmitter, second ultrasonic flowmeter, second temperature transmitter, first flow regulator and first check valve, the equipment on the LNG input pipeline includes: LNG storage tank, fourth electric valve, LNG vaporizer, second filter, second voltage regulator, fourth pressure transmitter, fourth ultrasonic flowmeter, fourth temperature transmitter, second flow regulator, second check valve and second sampler, the gas main line divide into before the mixing part and after the mixing part, the part includes before the mixing: the system comprises a second pressure transmitter, a third ultrasonic flowmeter, a third temperature transmitter and a first sampler; the blended part comprises: the third pressure transmitter, the first ultrasonic flowmeter, the first temperature transmitter and the third sampler are used for monitoring the heating value by regularly collecting components at the first sampler, and when the heating value is in a set range, the heating value is in a non-blending state; when the heating value is lower than the set range, starting a program for inputting high-heating-value LNG; when the heat generation is higher than the set range, the process of inputting nitrogen is started.
Compared with the prior art, the utility model discloses following beneficial effect has:
the gas mixing device is used for dynamically monitoring the gas heating amount, is quickly, accurately and uniformly adjusted, does not exceed a set range, solves the problem of quickly and dynamically mixing and adding gas, meets the technical requirement of finely adjusting the gas heating amount by micro-adjusting the main gas source components, and avoids the safety risk possibly occurring in gas mixing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for dynamically monitoring and adjusting the calorific value of natural gas according to an embodiment of the present invention;
reference numerals:
1. a compressor;
2a, a first filter; 2b, a second filter;
3a, a first electric valve; 3b, a second electric valve; 3c, a third electric valve; 3d, a fourth electric valve;
4. a molecular sieve adsorber;
5. an oxygen analyzer;
6a, a first temperature transmitter; 6b, a second temperature transmitter; 6c, a third temperature transmitter; 6d, a fourth temperature transmitter;
7a, a first voltage regulator; 7b, a second voltage regulator;
8a, a first ultrasonic flow meter; 8b, a second ultrasonic flow meter; 8c, a third ultrasonic flow meter; 8d, a fourth ultrasonic flow meter;
9a, a first pressure transmitter; 9b, a second pressure transmitter; 9c, a third pressure transmitter; 9d, a fourth pressure transmitter;
10a, a first flow regulator; 10b, a second flow regulator;
11a, a first check valve; 11b, a second check valve;
12. a dynamic mixer;
13a, a first sampler; 13b, a second sampler; 13c, a third sampler;
14. an online gas chromatograph;
15. an LNG vaporizer;
16. a PLC control box;
17. a computer;
18. LNG storage tank.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, according to the technical solution of the embodiment of the present invention: the overall structure of the device for dynamically monitoring and adjusting the calorific value of the natural gas is shown in the attached drawing, and comprises a dynamic mixer 12, a second electric valve 3b and a third electric valve 3c which are internally provided with two switches for controlling a blending pipeline, a nitrogen input pipeline, an LNG input pipeline, a gas main pipeline, an online gas chromatograph 14, a PLC control box 16 and a computer 17, wherein the equipment on the nitrogen input pipeline comprises: compressor 1, first filter 2a, first electric valve 3a, molecular sieve adsorber 4, oxygen analysis appearance 5, first pressure regulator 7a, first pressure transmitter 9a, second ultrasonic flowmeter 8b, second temperature transmitter 6b, first flow regulator 10a and first check valve 11a, the equipment on the LNG input line includes: LNG storage tank 18, fourth electrically operated valve 3d, LNG vaporizer 15, second filter 2b, second pressure regulator 7b, fourth pressure transmitter 9d, fourth ultrasonic flowmeter 8d, fourth temperature transmitter 6d, second flow regulator 10b, second check valve 11b and second sampler 13b, the gas main line divide into the part before the blending and the part after the blending, the part includes before the blending: a second pressure transmitter 9b, a third ultrasonic flow meter 8c, a third temperature transmitter 6c and a first sampler 13 a; the blended part comprises: a third pressure transmitter 9c, a first ultrasonic flow meter 8a, a first temperature transmitter 6a and a third sampler 13 c.
The principle of the natural gas heating value dynamic monitoring and adjusting device is as follows:
the on-line gas chromatograph 14 is controlled by the PLC control box 16, and can be respectively communicated with the first sampler 13a, the second sampler 13b, and the third sampler 13c at regular time according to instructions of the computer 17 to collect and analyze corresponding positions (the natural gas before blending, the gasified LNG, and the fuel gas components of the natural gas after blending, and then the on-line gas chromatograph 14 uploads the measured data to the computer 17 to calculate the fuel gas calorific value).
When the calorific value of the main pipeline first sampler 13a is lower than the set range before blending, starting a program for inputting high calorific value LNG, closing the second electric valve 3b and the first electric valve 3a, sequentially opening the fourth electric valve 3d and the third electric valve 3c, testing the calorific value of the LNG pipeline second sampler 13b, injecting the gasified LNG into the gas main pipeline through the dynamic mixer 12 according to the blending flow calculated by the computer 17, and adjusting the LNG flow to the flow calculated by the computer 17 program by the second flow regulator 10b and the fourth ultrasonic flowmeter 8 d. After the set time is exceeded, testing the heat productivity of the third sampler 13c of the gas main pipeline, and if the heat productivity is still lower than the set range, adjusting the second flow regulator 10b to increase the flow of the LNG until the heat productivity of the third sampler 13c is in the set range; if the calorific value of the third sampler 13c is higher than the set range, the second flow regulator 10b is adjusted to reduce the LNG flow until the calorific value of the third sampler 13c is within the set range.
When the heat output of the first sampler 13a of the main pipeline before mixing is higher than the set range, a program for inputting nitrogen is started, the third electric valve 3c and the fourth electric valve 3d are closed, the first electric valve 3a and the second electric valve 3b are sequentially opened, the nitrogen is injected into the gas main pipeline through the dynamic mixer 12 according to the mixing flow calculated by the computer 17, and the nitrogen flow is adjusted to the flow calculated by the program of the computer 17 through the first flow regulator 10a and the second ultrasonic flow meter 8 b. After the set time is exceeded, testing the calorific value of the third sampler 13c of the gas main pipeline, and if the calorific value is still higher than the set range, adjusting the first flow regulator 10a to increase the nitrogen flow; if the calorific value of the third sampler 13c is lower than the set range, the first flow regulator 10a is adjusted to reduce the nitrogen flow until the calorific value of the third sampler 13c falls within the set range.
The mathematical model is as follows:
1 volume heating value before mixing of fuel gas in main pipeline
The volume heating value before gas blending in the main pipeline is calculated according to the formula:
⑴
in the formula:
xj-the mole fraction of component j in the fuel gas;
at the combustion temperature t1, the metering temperature t2 and the pressure p2, the volumetric heating value of the fuel gas in the main pipeline before mixing is obtained;
-at the metering temperature t2 and pressure p2, the compression factor of the gas in the main line before blending;
-the desired gas volume heating value of fuel gas component j at combustion temperature t1, metering temperature t2 and pressure p 2;
2 volume heating value of fuel gas in main pipeline after nitrogen mixing
The volume calorific capacity of gas is two calculations according to the formula in the main line behind the mixing nitrogen gas:
⑵
in the formula:
the volume heating value of the fuel gas mixed with the nitrogen in the main pipeline is measured at the combustion temperature t1, the metering temperature t2 and the pressure p 2;
the compression factor of the fuel gas after nitrogen blending in the main pipeline is measured at the temperature t2 and the pressure p 2;
qN2 — volumetric flow rate of nitrogen blend;
qNG — volumetric flow of gas in the main pipeline.
3 volume heating value of fuel gas in main pipeline after mixing LNG
The volume heating value of the fuel gas in the main pipeline after the LNG is mixed is calculated according to a formula:
⑶
in the formula:
-the mole fraction of fuel gas component j in the LNG;
the volume heating value of the fuel gas mixed with the LNG in the main pipeline is measured at the combustion temperature t1, the metering temperature t2 and the pressure p 2;
the compression factor of the fuel gas after blending the LNG in the main pipeline is measured at the temperature t2 and the pressure p 2;
qLNG-volumetric flow of blended LNG
The working principle is as follows:
through the above-mentioned scheme of the utility model,
1. in a non-blended state: the first 3a, second 3b, third 3c and fourth 3d electrically operated valves are closed. The compressor 1, the molecular sieve adsorber 4, the oxygen analyzer 5, the first flow regulator 10a and other devices on the nitrogen input pipeline are in a standby state. The LNG vaporizer 15, the second flow regulator 10b, and the like on the LNG feed line are in a standby state. The computer 17 periodically samples the first sampler 13a on the main pipeline through the PLC control box 16, then performs component analysis using the online gas chromatograph 14, and then the computer 17 calculates the calorific value of the gas, compares the calorific value with a designed calorific value range, and determines whether the calorific value exceeds the range. If the calculated heat output is higher than the design range, starting a nitrogen mixing mode; if the calculated heating value is lower than the design range, the blended LNG mode is started.
2. Blending nitrogen mode: the third electric valve 3c and the fourth electric valve 3d are closed, the first electric valve 3a and the second electric valve 3b are sequentially opened, the compressor 1, the molecular sieve adsorber 4, the oxygen analyzer 5, the first flow regulator 10a and other equipment are started, nitrogen is injected into a fuel gas main pipeline through the dynamic mixer 12, and the nitrogen flow is regulated to the flow calculated by a computer 17 program through the first flow regulator 10a and the second ultrasonic flow meter 8 b. After the set time has elapsed, the first sampler 13a and the third sampler 13c of the gas main line are sampled again, and the calorific values are calculated respectively. If the calorific value at the first sampler 13a is still higher than the set range and the calorific value at the third sampler 13c is also higher than the set range, adjusting the first flow regulator 10a to increase the nitrogen flow until the calorific value at the third sampler 13c is within the set range; if the calorific value at the first sampler 13a is still higher than the set range and the calorific value at the third sampler 13c is already lower than the set range, the second flow regulator 10b is adjusted to reduce the nitrogen flow until the calorific value at the third sampler 13c is within the set range; if the calorific value at the first sampler 13a is already within the set range, entering a non-blending state; if the calorific value at the first sampler 13a has fallen below the set range, the blended LNG state is entered.
3. Blending LNG mode: the second electric valve 3b and the first electric valve 3a are closed, the fourth electric valve 3d and the third electric valve 3c are sequentially opened, the LNG vaporizer 15, the second flow regulator 10b and other equipment are started, the calorific value of the LNG pipeline second sampler 13b is tested, the gasified LNG is injected into the gas main pipeline through the dynamic mixer 12 according to the mixing flow calculated by the computer 17, and the LNG flow is regulated to the flow calculated by the computer 17 program through the second flow regulator 10b and the fourth ultrasonic flowmeter 8 d. After a set time has elapsed, the first sampler 13a and the third sampler 13c of the gas main line and the second sampler 13b of the LNG import line are sampled again, and the calorific value is calculated respectively.
If the calorific value of the first sampler 13a is lower than the set range and the calorific value of the third sampler 13c is also lower than the set range, adjusting the second flow regulator 10b to increase the LNG flow until the calorific value of the third sampler 13c is within the set range;
4. if the calorific value at the first sampler 13a is lower than the set range and the calorific value at the third sampler 13c is higher than the set range, the second flow regulator 10b is adjusted to reduce the LNG flow until the calorific value at the third sampler 13c is within the set range; if the calorific value at the first sampler 13a is already within the set range, entering a non-blending state; if the calorific value at the first sampler 13a has become higher than the set range, the nitrogen-blended state is entered.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (1)
1. A natural gas calorific capacity dynamic monitoring adjusting device is characterized in that: by dynamic mixer (12) with built-in two second electric valve (3 b) and third electric valve (3 c) of controlling the mixing pipeline switch, nitrogen gas input pipeline, LNG input pipeline, gas main line, online gas chromatograph (14), PLC control box (16) and computer (17) are constituteed, equipment on the nitrogen gas input pipeline includes: compressor (1), first filter (2 a), first electric valve (3 a), molecular sieve adsorber (4), oxygen analysis appearance (5), first voltage regulator (7 a), first pressure transmitter (9 a), second ultrasonic flowmeter (8 b), second temperature transmitter (6 b), first flow regulator (10 a) and first check valve (11 a), equipment on the LNG input line includes: LNG storage tank (18), fourth electrically operated valve (3 d), LNG vaporizer (15), second filter (2 b), second voltage regulator (7 b), fourth pressure transmitter (9 d), fourth ultrasonic flowmeter (8 d), fourth temperature transmitter (6 d), second flow regulator (10 b), second check valve (11 b) and second sampler (13 b), the gas main line divide into the part before the mixing and the part after the mixing, the part includes before the mixing: a second pressure transmitter (9 b), a third ultrasonic flow meter (8 c), a third temperature transmitter (6 c) and a first sampler (13 a); the blended part comprises: the third pressure transmitter (9 c), the first ultrasonic flowmeter (8 a), the first temperature transmitter (6 a) and the third sampler (13 c) monitor the heating value by collecting the components at the first sampler (13 a) at fixed time, and when the heating value is in a set range, the heating value is in a non-blending state; when the heating value is lower than the set range, starting a program for inputting high-heating-value LNG; when the heat generation is higher than the set range, the process of inputting nitrogen is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020865955.4U CN212776830U (en) | 2020-05-21 | 2020-05-21 | Natural gas calorific capacity dynamic monitoring adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020865955.4U CN212776830U (en) | 2020-05-21 | 2020-05-21 | Natural gas calorific capacity dynamic monitoring adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212776830U true CN212776830U (en) | 2021-03-23 |
Family
ID=75069287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020865955.4U Active CN212776830U (en) | 2020-05-21 | 2020-05-21 | Natural gas calorific capacity dynamic monitoring adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212776830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853543A (en) * | 2020-05-21 | 2020-10-30 | 北京市公用事业科学研究所 | Natural gas calorific capacity dynamic monitoring adjusting device |
-
2020
- 2020-05-21 CN CN202020865955.4U patent/CN212776830U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853543A (en) * | 2020-05-21 | 2020-10-30 | 北京市公用事业科学研究所 | Natural gas calorific capacity dynamic monitoring adjusting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Stansberry et al. | Experimental dynamic dispatch of a 60 kW proton exchange membrane electrolyzer in power-to-gas application | |
| CN204793042U (en) | Novel proton exchange membrane fuel cell's test system | |
| CN111853543A (en) | Natural gas calorific capacity dynamic monitoring adjusting device | |
| CN201543389U (en) | Follow-up gas-air mixing device | |
| CN207662871U (en) | A kind of mixed gas concentration real time monitoring apparatus | |
| CN212776830U (en) | Natural gas calorific capacity dynamic monitoring adjusting device | |
| US20160354742A1 (en) | System and method for blending biogas | |
| CN111992071A (en) | Hydrogen energy utilization fuel gas mixing system and hydrogen and natural gas ratio control method | |
| CN112649042A (en) | Experimental measurement device for urban natural gas hydrogen-doped mixing effect | |
| CN111928119A (en) | Mine gas safety mixing system and gas mixing ratio control method | |
| CN102353551A (en) | Method for measuring gas-quality adaptation regions or combustion working conditions of fuel gas utensils and used testing device | |
| CN103861489B (en) | Valve System of Internal Combustion Engine gas mixing system and gas and vapor permeation method | |
| CN203453771U (en) | Gas supplying device capable of continuously distributing gas and stabilizing wobbe index | |
| CN101037627B (en) | Method and device for producing town gas by using refinery exhaust | |
| US20220154889A1 (en) | Systems and methods for optimization of a petroleum distribution system | |
| Paulus et al. | Establishing the energy content of natural gas residential consumption: example with Belgian field-test applications | |
| RU2600484C1 (en) | Modular automated system for mixing natural gas with atmospheric air | |
| CN111830192A (en) | Air-mixed fuel gas combustion performance test system and test method thereof | |
| CN204347191U (en) | A kind of intrinsic safety ternary gas distribution pilot system | |
| CN203750434U (en) | Gas mixing system for internal combustion engine air distribution system | |
| CN113719834A (en) | Multi-medium mixed-phase gas generation system and method for regulating and controlling gas production of generator | |
| CN213680558U (en) | Gas mixing system for power station | |
| CN212492790U (en) | Gas mixing and tempering device | |
| WO2022214513A1 (en) | Method for monitoring a fuel conversion system, sensing device for carrying out a method of said kind, and fuel conversion system comprising a sensing device of said type | |
| Stansberry | Dynamic Analysis of a Proton Exchange Membrane Electrolyzer Integrated with a Natural Gas Combined Cycle Power Plant for Power-to-Gas Applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240110 Address after: Room 201, 2nd Floor, Building 13, Anhuali (Beijing Institute of Public Utility Science), Wuluju Community, Chaoyang District, Beijing, 100000 Patentee after: Beijing Public Utility Science Research Institute Co.,Ltd. Patentee after: Beijing Beiran Special Equipment Inspection and Testing Co.,Ltd. Address before: Room 201, 2nd Floor, Building 13, Anhuali (Beijing Institute of Public Utility Science), Wuluju Community, Chaoyang District, Beijing, 100000 Patentee before: Beijing Public Utility Science Research Institute Co.,Ltd. Effective date of registration: 20240110 Address after: Room 201, 2nd Floor, Building 13, Anhuali (Beijing Institute of Public Utility Science), Wuluju Community, Chaoyang District, Beijing, 100000 Patentee after: Beijing Public Utility Science Research Institute Co.,Ltd. Address before: 100011 Beijing, Chaoyang District Anwai museum outside East Backstreet No. 35 Patentee before: BEIJING PUBLIC UTILITY Research Institute |
|
| TR01 | Transfer of patent right |