CN219995096U - Pipeline natural gas dynamic odorizing control device - Google Patents
Pipeline natural gas dynamic odorizing control device Download PDFInfo
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- CN219995096U CN219995096U CN202320660058.3U CN202320660058U CN219995096U CN 219995096 U CN219995096 U CN 219995096U CN 202320660058 U CN202320660058 U CN 202320660058U CN 219995096 U CN219995096 U CN 219995096U
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- Prior art keywords
- odorizing agent
- odorizing
- natural gas
- agent
- pipeline
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 239000003345 natural gas Substances 0.000 title claims abstract description 63
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 148
- 238000012806 monitoring device Methods 0.000 claims abstract description 27
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000004811 liquid chromatography Methods 0.000 claims description 3
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical compound C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a pipeline natural gas dynamic odorizing control device, which comprises an odorizing agent storage tank, an odorizing agent inlet valve, an odorizing agent outlet valve, an odorizing agent precise metering pump, an odorizing agent dispersing pipe, a flow monitoring device, a natural gas pipeline and a PLC (programmable logic controller), wherein an odorizing agent outlet of the odorizing agent storage tank is connected with the odorizing agent inlet valve, the odorizing agent precise metering pump and the odorizing agent outlet valve through pipelines, the output end of the odorizing agent outlet valve is connected with one end of the odorizing agent dispersing pipe, and the other end of the odorizing agent dispersing pipe extends into the natural gas pipeline; the flow monitoring device is arranged on the natural gas pipeline, and the flow monitoring device and the odorizing agent precise metering pump are connected with the PLC. The utility model can ensure that the odor dosage added into the natural gas is accurate, and is safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of natural gas production, and particularly relates to a pipeline natural gas dynamic odorizing control device.
Background
Natural gas is widely used as fuel in boilers, generators, steel structure cutting and large ovens of enterprises. Some of the enterprises establish a natural gas supply station by themselves, and a liquefied natural gas storage tank is arranged, so that the liquefied natural gas is vaporized by a vaporizer and then is conveyed to using equipment through a pipeline.
According to the natural gas station of the urban gas design specification, an odorizing device is required to be arranged, and the content of odorizing agent in the gaseous natural gas is as follows: 20mg/m 3 。
The currently commonly adopted natural gas odorizing agent adding mode is that a metering pump is adopted to compress the natural gas odorizing agent into a pipeline for a certain time, then the odorizing agent is diffused in the pipeline, the natural gas odorizing agent is qualified after being detected to have odor through artificial smell, and the natural gas odorizing agent is detected by a special detector for the odorizing agent content, so that the natural gas odorizing agent is greatly different from the standard.
In addition, the addition amount of the deodorant is small and difficult to control, and the conventional device is difficult to realize standard addition.
Disclosure of Invention
The utility model aims to: the utility model aims to solve the defects in the prior art and provides a pipeline natural gas dynamic odorizing control device.
The technical scheme is as follows: the utility model relates to a pipeline natural gas dynamic odorizing control device, which comprises an odorizing agent storage tank, an odorizing agent inlet valve, an odorizing agent outlet valve, an odorizing agent precise metering pump, an odorizing agent dispersing pipe, a flow monitoring device, a natural gas pipeline and a PLC (programmable logic controller), wherein an odorizing agent outlet of the odorizing agent storage tank is connected with the odorizing agent inlet valve, the odorizing agent precise metering pump and the odorizing agent outlet valve through pipelines, the output end of the odorizing agent outlet valve is connected with one end of the odorizing agent dispersing pipe, and the other end of the odorizing agent dispersing pipe extends into the natural gas pipeline; the flow monitoring device is arranged on the natural gas pipeline, and the flow monitoring device and the odorizing agent precise metering pump are connected with the PLC.
In some embodiments, the odorizing agent precision metering pump is located between the odorizing agent outlet valve and the odorizing agent inlet valve. Wherein the odorizing agent inlet valve is used for controlling the opening or closing of the odorizing agent output from the odorizing agent storage tank, and the odorizing agent outlet valve is used for controlling the opening or closing of the odorizing agent output from the odorizing agent precision metering pump.
In some embodiments, the flow monitoring device employs a volumetric flow meter. Meanwhile, the flow monitoring device can also adopt a mass flowmeter. The flow monitoring device converts the flow velocity into an analog signal (4-20 mA), and transmits the analog signal to the PLC controller for controlling the metering quantity of the odorizing agent.
In some embodiments, the flow monitoring device is mounted proximate to the natural gas input port and the port of the odorizing agent dispersing pipe is mounted distal to the natural gas input port. The flow monitoring device arranged at the natural gas inlet can accurately monitor the real-time flow of the natural gas in the pipeline, and the natural gas can be reasonably mixed with the odorizing agent added subsequently through the flow, so that high-precision control is realized.
In some embodiments, the odorant precision metering pump employs a precision liquid chromatography metering pump. The odorizing agent precise metering pump is controlled by a PLC controller according to 20mg/m 3 The odorizing agent storage tank with corresponding flow rate is sucked into the metering pump, then is conveyed to the odorizing agent dispersing pipe, is diffused into the gaseous natural gas in the corresponding pipeline, and is uniformly mixed.
In some embodiments, the odorizing agent tank stores a solvent dispersed odorizing agent, and the solvent dispersed odorizing agent adopts ethanol, acetone and benzene solvents. The solvent dispersion odorizing agent which does not affect the use performance of the natural gas is selected, and the dispersing agent can be ethanol, acetone and benzene which do not pollute the environment and can dissolve tetrahydrothiophene.
The beneficial effects are that: the utility model can ensure that the odor dosage added into the natural gas is accurate; meanwhile, when the amount of the odorizing agent is small, an odorizing agent solvent which does not affect the use performance of the natural gas is selected, so that the odorizing agent is uniformly dispersed in the solvent and then is injected into an odorizing agent storage tank, and the odorizing agent with corresponding weight in a certain weight of mixed liquid improves the operability of a metering pump.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. are the directions or positional relationships shown, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
Examples
As shown in fig. 1, the pipeline natural gas dynamic odorizing control device comprises an odorizing agent storage tank 2, an odorizing agent inlet valve 9, an odorizing agent outlet valve 7, an odorizing agent precise metering pump 8, an odorizing agent dispersing pipe 6, a flow monitoring device 5, a natural gas pipeline 4 and a PLC 3, wherein an odorizing agent output port of the odorizing agent storage tank 2 is connected with the odorizing agent inlet valve 9, the odorizing agent precise metering pump 8 and the odorizing agent outlet valve 7 through pipelines, the output end of the odorizing agent outlet valve 7 is connected with one end of the odorizing agent dispersing pipe 6, and the other end of the odorizing agent dispersing pipe 6 extends into the natural gas pipeline 4; the flow monitoring device 5 is arranged on the natural gas pipeline 4, and the flow monitoring device 5 and the odorizing agent precise metering pump 8 are connected with the PLC 3.
In the utility model, the flow rate is converted into an analog signal (4-20 mA) through a flow monitoring device, and the analog signal is transmitted to a PLC (programmable logic controller) for controlling the metering quantity of the odorizing agent.
The odorizing agent precise metering pump 8 is controlled by the PLC 3 according to 20mg/m 3 The odorizing agent storage tank with corresponding flow rate is sucked into the metering pump, then is conveyed to the odorizing agent dispersing pipe, is diffused into the gaseous natural gas in the corresponding pipeline, and is uniformly mixed.
Examples
As shown in fig. 1, the pipeline natural gas dynamic odorizing control device comprises an odorizing agent storage tank 2, an odorizing agent inlet valve 9, an odorizing agent outlet valve 7, an odorizing agent precise metering pump 8, an odorizing agent dispersing pipe 6, a flow monitoring device 5, a natural gas pipeline 4 and a PLC 3, wherein an odorizing agent output port of the odorizing agent storage tank 2 is connected with the odorizing agent inlet valve 9, the odorizing agent precise metering pump 8 and the odorizing agent outlet valve 7 through pipelines, the output end of the odorizing agent outlet valve 7 is connected with one end of the odorizing agent dispersing pipe 6, and the other end of the odorizing agent dispersing pipe 6 extends into the natural gas pipeline 4; the flow monitoring device 5 is arranged on the natural gas pipeline 4, and the flow monitoring device 5 and the odorizing agent precise metering pump 8 are connected with the PLC 3.
In this embodiment, as shown in fig. 1, the odorizing agent precision metering pump 8 is located between the odorizing agent outlet valve 7 and the odorizing agent inlet valve 9. Wherein the odorizing agent inlet valve 9 is used for controlling the opening or closing of the odorizing agent that is output from the odorizing agent storage tank 2, and the odorizing agent outlet valve 7 is used for controlling the opening or closing of the odorizing agent that is output from the odorizing agent precision metering pump 8.
The odorizing agent outlet valve 7 and the odorizing agent inlet valve 9 may be manual control valves or automatic control valves, and when the automatic control valves are adopted, the odorizing agent outlet valve 7 and the odorizing agent inlet valve 9 may be connected with the PLC controller 3, and the opening or closing of the odorizing agent outlet valve 7 and the odorizing agent inlet valve 9 is controlled by the PLC controller 3.
In this embodiment, the flow monitoring device 5 preferably employs a volumetric flowmeter, while the flow monitoring device 5 may also employ a mass flowmeter. The flow monitoring device 5 converts the flow rate into an analog signal (4-20 mA), and transmits the analog signal to the PLC controller for controlling the metering amount of the odorizing agent.
In this embodiment, as shown in fig. 1, the flow monitor device 5 is installed near the natural gas inlet, and the port of the odorizing agent dispersing pipe 6 is installed far from the natural gas inlet. The flow monitoring device 5 arranged at the natural gas inlet can accurately monitor the real-time flow of the natural gas in the pipeline, and the natural gas can be reasonably mixed with the odorizing agent added subsequently through the flow, so that high-precision control is realized.
In this embodiment, the precision liquid chromatography metering pump is preferably used as the precision metering pump 8 for the odorizing agent. The odorizing agent precise metering pump 8 is controlled by the PLC 3 according to 20mg/m 3 The odorizing agent storage tank with corresponding flow rate is sucked into the metering pump, then is conveyed to the odorizing agent dispersing pipe, is diffused into the gaseous natural gas in the corresponding pipeline, and is uniformly mixed.
In the present embodiment, the solvent-dispersed odorizing agent 1 is stored in the odorizing agent tank 2. The solvent dispersion odorizing agent which does not affect the use performance of the natural gas is selected, and the dispersing agent can be ethanol, acetone and benzene which do not pollute the environment and can dissolve tetrahydrothiophene.
When the amount of the odorizing agent is small, an odorizing agent solvent which does not affect the use performance of the natural gas is selected, so that the odorizing agent is uniformly dispersed in the solvent and then is injected into an odorizing agent storage tank, and the odorizing agent with a certain weight corresponding to the corresponding weight in the mixed solution is added, so that the operability of a metering pump is improved.
The specific work control flow of the device is as follows:
(1) The natural gas is gasified and then enters a flowmeter through a natural gas pipeline to be measured, and the flow velocity is shown as m 3 The flow rate of the natural gas in the pipeline is changed along with the pressure change in the pipeline;
(2) The flowmeter transmitter converts the flow rate into an analog signal (4-20 mA), and transmits the analog signal to the PLC controller for controlling the metering amount of the odorizing agent.
(3) Under the instruction of the PLC controller, the precise metering pump is controlled according to 20mg/m 3 The odorizing agent storage tank with corresponding flow rate is sucked into the metering pump, then is conveyed to the odorizing agent dispersing pipe, is diffused into the gaseous natural gas in the corresponding pipeline, and is uniformly mixed.
The present utility model is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the utility model.
Claims (5)
1. A pipeline natural gas dynamic odorizing control device is characterized in that: the odorizing agent storage tank comprises an odorizing agent storage tank (2), an odorizing agent inlet valve (9), an odorizing agent outlet valve (7), an odorizing agent precise metering pump (8), an odorizing agent dispersing pipe (6), a flow monitoring device (5), a natural gas pipeline (4) and a PLC (programmable logic controller) (3), wherein an odorizing agent outlet of the odorizing agent storage tank (2) is connected with the odorizing agent inlet valve (9), the odorizing agent precise metering pump (8) and an odorizing agent outlet valve (7) through pipelines, the output end of the odorizing agent outlet valve (7) is connected with one end of the odorizing agent dispersing pipe (6), and the other end of the odorizing agent dispersing pipe (6) extends into the natural gas pipeline (4); the flow monitoring device (5) is arranged on the natural gas pipeline (4), and the flow monitoring device (5) and the odorizing agent precise metering pump (8) are connected with the PLC (3);
the odorizing agent precise metering pump (8) is positioned between the odorizing agent outlet valve (7) and the odorizing agent inlet valve (9).
2. The pipeline natural gas dynamic odorizing control device of claim 1, wherein: the flow monitoring device (5) adopts a volume flowmeter.
3. The pipeline natural gas dynamic odorizing control device of claim 1, wherein: the flow monitoring device (5) is arranged close to the natural gas input port, and the port of the odorizing agent dispersing pipe (6) is arranged far away from the natural gas input port.
4. The pipeline natural gas dynamic odorizing control device of claim 1, wherein: the odorizing agent precise metering pump (8) adopts a precise liquid chromatography metering pump.
5. The pipeline natural gas dynamic odorizing control device of claim 1, wherein: the odorizing agent storage tank (2) is internally stored with a solvent dispersion odorizing agent, and the solvent dispersion odorizing agent adopts ethanol, acetone and benzene solvents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320660058.3U CN219995096U (en) | 2023-03-30 | 2023-03-30 | Pipeline natural gas dynamic odorizing control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320660058.3U CN219995096U (en) | 2023-03-30 | 2023-03-30 | Pipeline natural gas dynamic odorizing control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219995096U true CN219995096U (en) | 2023-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320660058.3U Active CN219995096U (en) | 2023-03-30 | 2023-03-30 | Pipeline natural gas dynamic odorizing control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219995096U (en) |
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2023
- 2023-03-30 CN CN202320660058.3U patent/CN219995096U/en active Active
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