CN111895439A - High-efficient real-time hydrogen blending gas distribution cabinet of domestic gas - Google Patents
High-efficient real-time hydrogen blending gas distribution cabinet of domestic gas Download PDFInfo
- Publication number
- CN111895439A CN111895439A CN202010880166.2A CN202010880166A CN111895439A CN 111895439 A CN111895439 A CN 111895439A CN 202010880166 A CN202010880166 A CN 202010880166A CN 111895439 A CN111895439 A CN 111895439A
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- gas
- cabinet
- mixer
- source storage
- gas source
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- 239000007789 gas Substances 0.000 title claims abstract description 195
- 238000009826 distribution Methods 0.000 title claims abstract description 24
- 238000002156 mixing Methods 0.000 title claims description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract description 16
- 239000001257 hydrogen Substances 0.000 title abstract description 16
- 229910052739 hydrogen Inorganic materials 0.000 title abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 24
- 230000009123 feedback regulation Effects 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003345 natural gas Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a household gas efficient real-time hydrogen-doping gas distribution cabinet, which comprises a gas source storage cabinet and a gas source control cabinet arranged above the gas source storage cabinet, wherein a gas mixer is arranged in the gas source storage cabinet, two gas inlets and one gas outlet are arranged on the gas mixer, two independent gas flow connecting pipes are arranged in the gas source control cabinet, and the tail ends of the two independent gas flow connecting pipes are respectively communicated with the two gas inlets on the gas mixer; the invention has the beneficial effects that: the gas distribution cabinet can realize dynamic, real-time and high-precision automatic gas distribution, and can carry out uniform proportioning of various gases such as methane, hydrogen and the like.
Description
Technical Field
The invention relates to the technical field of kitchen integrated stoves, in particular to a household gas efficient real-time hydrogen-mixing gas distribution cabinet.
Background
Hydrogen energy is a green and clean secondary energy with extremely high energy density. With the rapid development of renewable energy sources, the technical level and the capability of producing hydrogen by using renewable energy sources in China are greatly improved, and the capability of storing and transporting hydrogen and consuming hydrogen in markets by using hydrogen energy is still insufficient. The demand of natural gas in China continuously rises, the external dependence degree is as high as 44% in 2019, hydrogen is added into a built natural gas pipeline for mixed transportation for combustion of a gas stove, the natural gas supply pressure is favorably relieved, the development of hydrogen production by western renewable energy sources is promoted, the energy safety level in China is improved, low-cost hydrogen is conveniently transported in a large range, and the hydrogen consumption capacity of the market is greatly improved. The project realizes hydrogen mixing-transportation-combustion utilization by researching technologies such as real-time variable proportion mixing, natural gas pipeline material and hydrogen-doped natural gas combustion interchangeability and the like, breaks through foreign technology monopoly, improves the defects of domestic natural gas pipeline hydrogen-doped standards and standards, and promotes the upgrading of urban gas pipeline systems.
The research on the HCNG mixed flow mechanism is a precondition for developing and optimizing the hydrogen-loading process method. The CFD software is used for simulating HCNG flow, the influence of density buoyancy effect is considered in a turbulent flow diffusion item, and the structure of the mixer is designed and optimized by taking the structure, the working mechanism and the like of the fixed bed catalytic reactor and the mixer as reference. On the other hand, aiming at the characteristics of small pipe diameter, complex arrangement and the like of the urban pipe network, the flow characteristic of HCNG in a complex pipeline is simulated. On the basis, integrated real-time hydrogen-mixing gas distribution system equipment is developed by combining the optimization design of a mixer and the design of a real-time gas distribution control module, so that a household gas high-efficiency real-time hydrogen-mixing gas distribution cabinet is formed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an integrated simple gas mixing device, which can realize real-time hydrogen mixing of a gas inlet pipeline when a gas stove is used, improve the combustion heat value of the gas, reduce pollutant emission, better consume clean energy and realize high-efficiency utilization of the clean energy, and has certain practical value and technical guidance significance.
The technical scheme of the invention is as follows:
the household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized by comprising a gas source storage cabinet and a gas source control cabinet arranged above the gas source storage cabinet, wherein a gas mixer is arranged in the gas source storage cabinet, two gas inlets and one gas outlet are arranged on the gas mixer, two independent gas flow connecting pipes are arranged in the gas source control cabinet, and the tail ends of the two independent gas flow connecting pipes are respectively communicated with the two gas inlets on the gas mixer; the gas source storage cabinet is internally provided with a data feedback regulation control unit, and the electromagnetic valve, the automatic flow regulator, the pressure sensor and the differential pressure flow regulator are respectively in signal connection with the data feedback regulation control unit; and the two gases entering the gas mixer are controlled by a data feedback regulation control unit.
The household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized in that a control button, a computer keyboard, an emergency stop button and a computer display screen are arranged on the front surface of an outer panel of the gas source control cabinet, and an airflow outlet and a handle are arranged on the side surface of the outer panel.
The household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized in that a cabinet door and a cabinet door switch are arranged on the gas source storage cabinet.
The household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized in that a check valve is arranged on a pipeline at a gas outlet of the gas mixer to prevent mixed gas from flowing back; and a gas leakage detector is also arranged in the gas source storage cabinet and used for detecting the gas tightness of the gas mixer.
The household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized in that a pipeline of a gas outlet of the gas mixer is output from a gas flow outlet of the gas source control cabinet.
The invention has the beneficial effects that: the gas distribution cabinet can realize dynamic, real-time and high-precision automatic gas distribution, can uniformly mix various gases such as methane, hydrogen and the like, is internally provided with the pressure sensor and the gas leakage detector, can detect the pressure in a pipeline and the gas tightness of the mixing device in real time, and can carry out feedback regulation through the regulating box, thereby ensuring the safety in the hydrogen doping process.
Drawings
FIG. 1 is a three-dimensional block diagram of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the air supply control cabinet of the present invention;
FIG. 3 is a schematic view of the internal structure of the air source storage cabinet of the present invention;
FIG. 4 is a control schematic of the present invention;
in the figure: 1-a control button; 2-computer keyboard; 3-emergency stop button; 4-computer display screen; 5-gas source storage cabinet; 6-cabinet door; 7-cabinet door switch knob; 8-an airflow outlet; 9-a handle; 10-gas source control cabinet; 101-two gas flow connecting pipes; 102-a gas filter; 103-an electromagnetic valve; 104-a pressure sensor; 105-differential pressure flow regulator; 106-data feedback regulation control box; 108-automatic flow regulators; 501-a gas mixer; 502-check valve; 503-gas leak detector.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a household gas efficient real-time hydrogen-loading gas distribution cabinet comprises a control button 1, a computer keyboard 2, an emergency stop button 3, a computer display screen 4, a gas storage cabinet 5, a cabinet door 6, a cabinet door switch 7, a gas outlet 8, a handle 9, a gas source control cabinet 10, a gas flow connection pipe 101, a gas filter 102, an electromagnetic valve 103, a temperature sensor 104, a differential pressure flow regulator 105, a data feedback regulation control unit 106, a pressure sensor 107, an automatic flow regulator 108, a gas mixer 501, a check valve 502 and a gas leakage detector 503.
The gas source control cabinet 10 is arranged above the gas source storage cabinet 5, the gas source storage cabinet 5 is internally provided with a gas mixer 501, the gas mixer 501 is provided with two gas inlets and a gas outlet, and a pipeline of the gas outlet of the gas mixer 501 is output from the gas flow outlet 8 of the gas source control cabinet. A check valve 502 is arranged on a pipeline of a gas outlet of the gas mixer 501 to prevent the mixed gas from flowing back; the gas source storage cabinet 5 is further provided with a gas leakage detector 503 inside for the gas tightness of the gas mixer 501.
Two independent airflow connecting pipes 101 are arranged inside the air source control cabinet 10, and the tail ends of the two independent airflow connecting pipes 101 are respectively communicated with two air inlets on the air mixer 501; the gas flow connection pipe 101 is sequentially provided with a gas filter 102, an electromagnetic valve 103, an automatic flow regulator 108, a temperature sensor 104 and a differential pressure flow regulator 105, the gas source storage cabinet 10 is also internally provided with a data feedback regulation control unit 106, and the electromagnetic valve 103, the automatic flow regulator 108, the pressure sensor 107 and the differential pressure flow regulator 105 are respectively in signal connection with the data feedback regulation control unit 106; and controls the two gases entering the gas mixer 501 by the data feedback adjustment control unit 106.
The front surface of the outer panel of the air source control cabinet 10 is provided with a control button 1, a computer keyboard 2, an emergency stop button 3 and a computer display screen 4, and the side surface is provided with an air outlet 8 and a handle 9.
The gas source storage cabinet 5 is provided with a cabinet door 6 and a cabinet door switch 7.
Example (b):
the types and the mixing proportion of the gases required to be mixed in the computer keyboard 2; a computer display screen 4 is arranged on the left side of the computer keyboard 2, and information such as the type of mixed gas, the mixing proportion, the pressure and the like is displayed on the computer display screen 4; the upper end of the computer keyboard 2 is also provided with an emergency stop button 3; after the blending gas types and blending proportion are set, the gas distribution cabinet is started through the control button 1, and gas enters the gas source control cabinet 10 to be distributed.
After the gas enters the gas source control cabinet 10, the gas is first connected to the gas filter 102 through the gas flow connection pipe 101 for removing impurities in the gas. The gas filter 102 is a straight cylinder, and comprises two core parts, namely a filter tube outer shell and a filter element, wherein the filter tube outer shell mainly comprises a flange and a cylinder body, and the filter element mainly comprises a filter cartridge inner shell, a screen and a filter tube outer shell.
Further, the electromagnetic valve 103 and the automatic flow regulator 108 open the valve in a time-limited manner according to the gas mixing information set by the computer keyboard 2, and the automatic flow regulator 108 automatically maintains the flow within a certain given range.
Further, after the gas flows out through the automatic flow regulator 108, the pressure sensor 107 on the pipe measures the pressure in the pipe; before the gas is mixed, a differential pressure flow regulator 105 is arranged at the tail end of the pipeline, and when the differential pressure flow regulator 105 is used for gas measurement, when the pressure of an inlet or an outlet fluctuates, the flow is ensured to be stable.
Further, after passing through the differential pressure flow regulator 105, the gas enters the gas mixer 501; the gases are mixed in a gas mixer 501; after the mixed gas flows out of the gas mixer, a check valve 502 is arranged in the pipeline to prevent the mixed gas from flowing back;
further, since the gas is easily layered and not easily mixed in the mixing of the gas in the transportation pipeline, the internal structure of the gas mixer 501 adopts a spiral shape, and the spiral mixer can sufficiently mix the gas and the pressure difference is small.
Further, a data feedback regulation control unit 106 is further arranged inside the gas source control cabinet 10, the pressure sensor 107 transmits the measured pressure in the pipeline to the data feedback regulation control unit 106, and the data feedback regulation control unit 106 regulates the electromagnetic valve, the automatic flow regulator and the differential pressure flow regulator according to the data feedback to enable the pressure and the flow to be stabilized within a certain range.
Further, a gas leakage detector 503 is disposed inside the gas source storage tank 5 at a side of the gas mixer 501 for detecting the gas tightness of the mixing device, and when the gas tightness of the mixing device is not good, i.e. there is a gas leakage, the gas leakage detector 503 feeds back the leakage data to the data feedback regulation control unit 106.
Further, on the one hand, the data feedback regulation control box 106 closes the valve by regulating the electromagnetic valve 103 and the automatic flow regulator 108; on the other hand, the data feedback regulation control unit 106 transmits data to the computer display screen 4, and can be controlled through the emergency stop button 3 to ensure the safe operation of the gas distribution cabinet.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The household gas efficient real-time hydrogen-mixing gas distribution cabinet is characterized by comprising a gas source storage cabinet (5) and a gas source control cabinet (10) arranged above the gas source storage cabinet (5), wherein a gas mixer (501) is arranged inside the gas source storage cabinet (5), two gas inlets and one gas outlet are arranged on the gas mixer (501), two independent gas flow connecting pipes (101) are arranged inside the gas source control cabinet (10), and the tail ends of the two independent gas flow connecting pipes (101) are respectively communicated with the two gas inlets on the gas mixer (501); the gas flow connection pipe (101) is sequentially provided with a gas filter (102), an electromagnetic valve (103), an automatic flow regulator (108), a temperature sensor (104) and a differential pressure flow regulator (105), the gas source storage cabinet (10) is internally provided with a data feedback regulation control unit (106), and the electromagnetic valve (103), the automatic flow regulator (108), the pressure sensor (107) and the differential pressure flow regulator (105) are respectively in signal connection with the data feedback regulation control unit (106); and controls the two gases entering the gas mixer (501) by a data feedback regulation control unit (106).
2. The household gas efficient real-time hydrogen-mixing gas distribution cabinet according to claim 1, characterized in that a control button (1), a computer keyboard (2), an emergency stop button (3) and a computer display screen (4) are arranged on the front surface of an outer panel of the gas source control cabinet (10), and an airflow outlet (8) and a handle (9) are arranged on the side surface.
3. The household gas efficient real-time hydrogen-loading gas distribution cabinet according to claim 1, wherein a cabinet door (6) and a cabinet door switch (7) are arranged on the gas source storage cabinet (5).
4. The household gas high-efficiency real-time hydrogen-loading gas distribution cabinet as claimed in claim 1, wherein a check valve (502) is arranged on a pipeline of a gas outlet of the gas mixer (501) to prevent backflow of mixed gas; and a gas leakage detector (503) is also arranged in the gas source storage cabinet (5) and is used for the gas tightness of the gas mixer (501).
5. The household gas high-efficiency real-time hydrogen-loading gas distribution cabinet as claimed in claim 2, wherein the pipeline of the gas outlet of the gas mixer (501) is output from the gas flow outlet (8) of the gas source control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880166.2A CN111895439A (en) | 2020-08-27 | 2020-08-27 | High-efficient real-time hydrogen blending gas distribution cabinet of domestic gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880166.2A CN111895439A (en) | 2020-08-27 | 2020-08-27 | High-efficient real-time hydrogen blending gas distribution cabinet of domestic gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111895439A true CN111895439A (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010880166.2A Pending CN111895439A (en) | 2020-08-27 | 2020-08-27 | High-efficient real-time hydrogen blending gas distribution cabinet of domestic gas |
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| CN (1) | CN111895439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341060A (en) * | 2021-06-11 | 2021-09-03 | 中国石油大学(华东) | Medium-low pressure hydrogen-containing pipeline experiment system and method |
| CN113719751A (en) * | 2021-08-31 | 2021-11-30 | 吴冬兰 | Gas supply volume adjusting equipment based on saving type industrial production |
-
2020
- 2020-08-27 CN CN202010880166.2A patent/CN111895439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113341060A (en) * | 2021-06-11 | 2021-09-03 | 中国石油大学(华东) | Medium-low pressure hydrogen-containing pipeline experiment system and method |
| CN113719751A (en) * | 2021-08-31 | 2021-11-30 | 吴冬兰 | Gas supply volume adjusting equipment based on saving type industrial production |
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