CN216792756U - Distributed automatic control system of liquefied petroleum gas station - Google Patents
Distributed automatic control system of liquefied petroleum gas station Download PDFInfo
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- CN216792756U CN216792756U CN202122576885.8U CN202122576885U CN216792756U CN 216792756 U CN216792756 U CN 216792756U CN 202122576885 U CN202122576885 U CN 202122576885U CN 216792756 U CN216792756 U CN 216792756U
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- petroleum gas
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- 239000003915 liquefied petroleum gas Substances 0.000 title claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 23
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 23
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 40
- 238000004891 communication Methods 0.000 claims description 27
- 238000005507 spraying Methods 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a distributed automatic control system of a liquefied petroleum gas station, which comprises a liquefied petroleum gas storage tank, a compressor, a hydrocarbon pump and a conveying pipeline, wherein the hydrocarbon pump is connected with a control host, a pressure sensor for detecting the pressure in the liquefied petroleum gas storage tank is arranged in the liquefied petroleum gas storage tank, a liquid level sensor for detecting the liquid level of liquefied petroleum in the liquefied petroleum gas storage tank is also arranged in the liquefied petroleum gas storage tank, a temperature sensor for detecting the temperature in the liquefied petroleum gas storage tank is also arranged in the liquefied petroleum gas storage tank, and the traditional PLC mode can only adopt wired transmission. The utility model realizes the informatization and automation of the liquefied petroleum gas station, wired 485 remote transmission and LORA wireless remote transmission, can realize transmission of more than 3000 meters, and is more convenient, safer and more reliable in the aspects of monitoring and controlling the liquefied petroleum gas station.
Description
Technical Field
The utility model relates to the technical field of liquefied petroleum gas tanks, in particular to a distributed automatic control system of a liquefied petroleum gas station.
Background
Liquefied gas stations are located all over the country, and are related to thousands of households, the construction period of some gas stations exceeds 20 years, safety protection facilities are old, storage tanks reach the scrapping period, and the construction department is strictly revised. The gas station information automation transformation versions are many, but all adopt the traditional ancient PLC structure. The PLC device realizes only the functions of the present unit. Because the PLC basically works for a single small system, when the PLC communicates with other PLCs or upper computers, the adopted network form is basically a single-network structure, and the network protocol is often not in accordance with the international standard. In addition, the PLC module is only a simple electrical switching element, and has no intelligent chip, and all corresponding units are broken down after a fault, so that an improvement technology for a gas station of a PLC structure is urgent.
SUMMERY OF THE UTILITY MODEL
Based on the defects of the prior art, the utility model provides a distributed automatic control system of a liquefied petroleum gas station, so that the gas station is more automatic and informationized, and is safer and more reliable.
The technical scheme of the utility model is as follows:
the utility model provides a distributed automatic control system in liquefied petroleum gas station, includes liquefied petroleum gas storage tank, hydrocarbon pump and pipeline, the liquefied petroleum gas in the liquefied petroleum gas storage tank is gone into from liquefied petroleum gas pond or pipeline by the hydrocarbon pump, the hydrocarbon pump is connected its characterized in that with automatic control system's control host computer:
the pressure monitoring module is used for detecting the pressure in the liquefied petroleum gas storage tank, the pressure monitoring module is in wireless communication connection with a control host of a liquefied gas station, the control host is also connected with a pressure line-passing alarm, and the pressure line-passing alarm is used for giving an alarm once the pressure is too high;
the liquefied petroleum gas storage tank is also internally provided with a liquid level monitoring module for detecting the liquid level of the liquefied petroleum gas in the liquefied petroleum gas storage tank, the liquid level monitoring module is in wireless communication connection with a control host of the liquefied gas station, the control host is also respectively connected with a high level (a compressor is automatically closed, a hydrocarbon pump power supply is prevented from overflowing), a low liquid level alarm works, a red light is on, and an alarm sound is given; level x bulk x density can show the stored gas phase weight and liquid phase weight.
Still be provided with the temperature monitoring module who is used for detecting the internal temperature of liquefied petroleum gas storage tank in the liquefied petroleum gas storage tank, temperature sensor and liquefied gas station's control host computer wireless communication are connected.
The pressure sensor is further connected with a first processor, the first processor is connected with a first wireless sending module, and the first wireless sending module is in wireless communication connection with a control host of the liquefied gas station.
The liquid level sensor is connected with a second processor for controlling the compressor and the hydrocarbon pump to be closed. The second processor is connected with a second wireless sending module, and the second wireless sending module is in wireless communication connection with a control host of the liquefied gas station.
And the third processor is connected with a third wireless transmitting module, and the third wireless transmitting module is in wireless communication connection with the control host of the liquefied gas station.
Install pneumatic emergency cut-off valve in the pipeline of liquefied petroleum gas storage tank, pneumatic emergency cut-off valve passes through copper pipe and air compressor intercommunication, air compressor is connected with the pneumatic control case of its work of control, the pneumatic control case with the main control system is connected.
Storage tank district, hydrocarbon pump district and compressor room, fill dress platform, unload the liquid platform and all be provided with combustible gas detection device, combustible gas detection device with main control system connects, main control system still is connected with combustible gas alarm device, has when there being the leakage in arbitrary position, and alarm work closes emergency cut-off valve, hydrocarbon pump and compressor power promptly, prevents the occurence of failure.
The combustible gas alarm device comprises an alarm and an alarm host connected with the alarm, the alarm host is further connected with a wireless communication module, and the wireless communication module is in wireless communication connection with the control host.
The combustible gas alarm device further comprises a standby body power supply of 2.6AH for supplying power to the power utilization module, the leakage alarm can work normally under the power failure state, the emergency cut-off valve control power supply is powered by the UBS power supply, and the power failure state can be closed.
The control host is also connected with a manual emergency switch key, and the compressor, the hydrocarbon pump and the pneumatic emergency cut-off valve can be simultaneously closed through the switch key, so that the leakage alarm can be automatically closed when working.
Still include liquefied petroleum gas storage tank spray set, liquefied petroleum gas storage tank spray set sprays the final controlling element including spraying the host computer and by spraying the main control system, spray the host computer with the main control system is connected, when the temperature of liquefied petroleum gas storage tank reached first temperature value, the main control system with spray the host computer communication, spray the final controlling element through spraying the host computer and spray the cooling to stop spraying when the temperature dropped to the second temperature value.
The control host is connected with the mobile phone APP, and the mobile phone APP is connected with the cloud server. Monitoring data can be uploaded to management departments at all levels.
The utility model has the beneficial effects that: the information and automation of the liquefied petroleum gas station are realized, and the monitoring and control of the liquefied petroleum gas station are more convenient, safer and more reliable.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1, a distributed automatic control system for a liquefied petroleum gas station includes a liquefied petroleum gas storage tank, a hydrocarbon pump and a delivery pipeline thereof, where the liquefied petroleum gas in the liquefied petroleum gas storage tank is pumped from a liquefied petroleum gas pool or a pipeline by the hydrocarbon pump, the hydrocarbon pump is connected with a control host of the automatic control system, a pressure sensor for detecting the pressure in the liquefied petroleum gas storage tank is arranged in the liquefied petroleum gas storage tank, the pressure sensor is further connected with a first processor, the first processor is connected with a first wireless sending module, the first wireless sending module is in wireless communication with the control host of the liquefied petroleum gas station, the control host is further connected with a pressure line-passing alarm, and the pressure line-passing alarm is used for alarming once the pressure is too high;
still be provided with the level sensor who is used for detecting the liquid level of the liquefied petroleum in the liquefied petroleum gas storage tank, level sensor is connected with the second treater, the second treater is connected with the wireless sending module of second, the wireless sending module of second and the control host computer wireless communication connection of liquefied gas station, the control host computer still is connected with high, low liquid level alarm respectively.
In this embodiment, the set height of the high liquid level alarm is the designed storage high liquid level of the storage tank; the set height of the low liquid level alarm is to meet the requirement that the pump cannot be subjected to cavitation within 10-15 min from the beginning of the alarm, in addition, a high liquid level alarm and a linkage of the storage tank are also arranged, the high liquid level alarm is to close a control valve of an inlet pipeline of the storage tank in a linkage manner, further, a low liquid level alarm and a low liquid level alarm of the storage tank are also arranged, the low liquid level alarm and the linkage hydrocarbon stop pump are further arranged, and the high liquid level alarm refers to the setting according to 90% of the liquid volume. Reaching this level must prevent liquid from continuing into the tank, preventing spillage. The low-low level alarm means that a lowest position is set according to the volume of liquid, when the liquid is below the lowest position, the alarm is given, the high-high level alarm signal and the low-low level alarm signal of the storage tank both adopt independent liquid level continuous measuring instruments or liquid level switches, and the alarm signals are transmitted to the control host.
Still be provided with the temperature sensor who is used for detecting the internal temperature of liquefied petroleum gas storage tank in the liquefied petroleum gas storage tank, temperature sensor is connected with the third treater, the third treater is connected with the third wireless sending module, the third wireless sending module is connected with the control host computer wireless communication at liquefied gas station.
The system comprises a spraying host and a spraying execution device controlled by the spraying host, wherein the spraying host is connected with the control host, when the temperature of the liquefied petroleum gas storage tank reaches a first temperature value, for example, when the temperature of liquid in the storage tank reaches 38 ℃, the control host is communicated with the spraying host, the spraying host is used for automatically starting the fire-fighting spraying device to perform spraying cooling, and the spraying is stopped when the temperature drops to a second temperature value, for example, when the temperature of liquid in the storage tank drops to 2 ℃.
In addition, it should be noted that the control host further includes or is connected with a display or a display device, which can display the pressure, temperature and liquid level measurement signals of the storage tank in a centralized manner.
It should be noted that, in this embodiment, the first processor, the second processor, and the third processor may be three independent processors respectively, and may also be one processor, when three independent processors are provided, the three independent processors are connected to respective sensors respectively to perform signal acquisition, and the three different wireless transmission modules are used to connect the signals to the control host in communication, if a processor is provided, the acquired signals of the three sensors may all be connected to the processor, and the acquired signals are all processed by the processor, and only one wireless transmission module is needed correspondingly, and the wireless transmission module sends the acquired signals of the three sensors respectively, but there is a transmission time difference.
In some embodiments, the storage tank area, the hydrocarbon pump area and the compressor room, the filling platform and the liquid unloading platform are all provided with combustible gas detection devices, the combustible gas detection devices are connected with the control host, the control host is further connected with a combustible gas alarm device, when leakage exists in any position, the alarm works, namely, the emergency stop valve, the hydrocarbon pump and the compressor power supply are closed, and accidents are prevented.
The combustible gas alarm device comprises an alarm and an alarm host connected with the alarm, the alarm host is further connected with a wireless communication module, and the wireless communication module is in wireless communication connection with the control host.
When the technical scheme is implemented, the device can continuously collect and monitor the pressure, liquid level and temperature information of the storage tank, detect and alarm the leakage of the combustible gas, and has the functions of signal remote transmission, continuous recording, accident early warning, information storage and the like. The retention time of the recorded electronic data must not be less than 30 days.
In addition, when the above scheme is implemented, when the liquefied petroleum gas storage tank needs to be cut off, the compressor and the power supply of the hydrocarbon pump can be turned off, and the liquid can be stopped from entering the storage tank. The accessible cuts off the setting and is in the pneumatic emergency cut-off valve that sets up in the pipeline of liquefied petroleum gas storage tank cuts off the delivery circuit, pneumatic emergency cut-off valve passes through copper pipe and air compressor intercommunication, air compressor is connected with the pneumatic control case of its work of control, the pneumatic control case with the main control system is connected. In the layout of the starting emergency cut-off valve, a remotely operable pneumatic emergency cut-off valve can be arranged on a liquid phase outlet pipeline at the bottom of the storage tank, the position of the pneumatic emergency cut-off valve is close to the root of the storage tank, and the pneumatic emergency cut-off valve is of failure safety type.
In this embodiment, the control host is further connected with an on-off switch, and the compressor, the hydrocarbon pump and the pneumatic emergency shut-off valve can be simultaneously closed through the on-off switch.
The pneumatic control box is provided with a 1.6MPA high-pressure manual reset electromagnetic valve, when the high-pressure electromagnetic valve is closed by a switch key, the high-pressure electromagnetic valve is automatically closed, the leakage alarm is prevented from being mistakenly operated when the leakage alarm stops working temporarily, and the air supply can be normally started again by manually pulling the reset valve. In addition, the pneumatic control box is also independently provided with a hand-pulling pneumatic one-key emergency closing key to control the pressure switch to work, so that the emergency use is ensured.
The combustible gas alarm device of the embodiment also comprises a 2.6AH standby power supply for supplying power to the power utilization module, so that the on-site alarm display function is maintained, and the normal alarm in power failure can be realized for over 24 hours. The power supply and the emergency cut-off valve of the automatic shutdown device can normally work for 24 hours after power failure by matching with the control host and other processors, and can be guaranteed to be automatically shut down under the condition of major disasters. Avoiding serious accidents caused by gas leakage.
In addition, the control host computer still is connected with wired 485 teletransmission module and LORA module, has realized the information ization, the automation at liquefied petroleum gas station, and the wireless remote transmission of wired 485 teletransmission and LORA can realize the transmission more than 3000 meters to it is more convenient, safe and reliable more in the aspect of monitoring and the control to liquefied petroleum gas station.
In addition, this embodiment control host adopts the suspension type installation, safe and reliable, the control host can also communicate with cell-phone APP through 485 teletransmission module or LORA module, look over through cell-phone APP, also can realize cell-phone remote operation control in the station, cell-phone APP connects cloud ware, realizes big data monitoring and analysis, administrator and user can use webpage or customer end, submit or send service request, monitor center sends the request command for monitor terminal, control field device accomplishes data acquisition work, monitor terminal then converts the monitoring information of gathering on-the-spot into digital signal and conveys the server to, the server is submitted administrator or user with feedback after data processing accomplishes. The data acquisition monitoring system has obvious advantages, can acquire a large amount of data, can provide a large number of control functions, has good stability, is centralized in management, and can realize unattended monitoring in the true sense.
The pressure, temperature, the liquid level measurement signal of this embodiment gas holder can convey to the control host computer and concentrate the demonstration to can set up liquefied petroleum gas quality and total mass according to data acquisition, still use the densimeter to detect density and fill in data, can accurately show liquid quality, can also pass through the calibration of weighing of car tank wagon, the degree of accuracy can reach 50m3 storage tank mass error and < 50 Kg. The system can provide accurate and real-time total storage capacity of the gas station for management departments, and ensure the safety of gas source supply.
This embodiment can reach 24 hours safety protection of outage, also can close the quick action emergency valve under the power failure situation, and relative PLC system, the expense is lower, and safe and reliable more can ensure automation and the safety guarantee of liquefied petroleum gas station.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a distributed automatic control system in liquefied petroleum gas station, includes liquefied petroleum gas storage tank, hydrocarbon pump and pipeline, the hydrocarbon pump is connected its characterized in that with automatic control system's control host computer:
the liquefied petroleum gas storage tank is internally provided with a pressure sensor for detecting the pressure in the liquefied petroleum gas storage tank, the pressure sensor is in wireless communication connection with a control host of a liquefied gas station, the control host is also connected with a pressure over-pressure alarm, and the pressure over-pressure alarm is used for giving an alarm once the pressure is too high;
the liquefied petroleum gas storage tank is also internally provided with a liquid level sensor for detecting the liquid level of the liquefied petroleum gas in the liquefied petroleum gas storage tank, the liquid level sensor is in wireless communication connection with a control host of the liquefied gas station, and the control host is also respectively connected with a high level alarm, a high level alarm and a low level alarm;
the liquefied petroleum gas storage tank is also internally provided with a temperature sensor for detecting the temperature in the liquefied petroleum gas storage tank, and the temperature sensor is in wireless communication connection with a control host of the liquefied gas station.
2. A decentralized automatic control system for a liquefied petroleum gas station according to claim 1, wherein:
the pressure monitoring module comprises a pressure sensor, the pressure sensor is further connected with a first processor, the first processor is connected with a first wireless transmission module, and the first wireless transmission module is in wireless communication connection with a control host of the liquefied gas station.
3. The decentralized automatic control system for liquefied petroleum gas stations according to claim 1, wherein:
the liquid level sensor is connected with a second processor, the second processor is connected with a second wireless transmitting module, and the second wireless transmitting module is in wireless communication connection with a control host of the liquefied gas station;
the temperature sensor is connected with a third processor, the third processor is connected with a third wireless transmitting module, and the third wireless transmitting module is in wireless communication connection with a control host of the liquefied gas station.
4. A liquefied petroleum gas station decentralized automatic control system according to claim 3, wherein: the device comprises a liquefied petroleum gas storage tank, and is characterized in that a pneumatic emergency cut-off valve is arranged on a conveying pipeline of the liquefied petroleum gas storage tank and communicated with an air compressor through a copper pipe, the air compressor is connected with an intelligent pneumatic control box for controlling the work of the air compressor, and the pneumatic control box is connected with a control host.
5. A liquefied petroleum gas station decentralized automatic control system according to claim 3, wherein: storage tank district, hydrocarbon pump district and compressor room, fill dress platform, unload the liquid platform and all be provided with combustible gas detection device, combustible gas detection device with main control system connects, main control system still is connected with combustible gas alarm device, has when there being the leakage in arbitrary position, and alarm work closes emergency cut-off valve, hydrocarbon pump and compressor power promptly, prevents the occurence of failure.
6. The decentralized automatic control system for liquefied petroleum gas station according to claim 5, wherein: the combustible gas alarm device comprises an alarm and an alarm host connected with the alarm, the alarm host is further connected with a wireless communication module, and the wireless communication module is in wireless communication connection with the control host.
7. The decentralized automatic control system for liquefied petroleum gas station according to claim 6, wherein: combustible gas alarm device still includes 2.6 AH's reserve body power supply for its power module power supply, guarantees under the power failure state, and leakage alarm can normally work, and urgent shutoff valve control power is supplied power by the UBS power, guarantees to close under the power failure state.
8. A decentralized automatic control system for a liquefied petroleum gas station according to claim 7, wherein: the control host is also connected with a manual emergency switch key, and the compressor, the hydrocarbon pump and the pneumatic emergency cut-off valve can be simultaneously closed through the switch key, so that the leakage alarm can be automatically closed when working.
9. The decentralized automatic control system for liquefied petroleum gas stations according to claim 1, wherein: the spraying device of the liquefied petroleum gas storage tank comprises a spray water pump and a spraying execution device controlled by a spraying host, the spraying host is connected with the control host, when the temperature of the liquefied petroleum gas storage tank reaches a rated temperature value, the control host is communicated with the spraying host, the spraying execution device is controlled by the spraying host to spray and cool, and the spraying is stopped when the temperature drops to a second temperature value.
10. A liquefied petroleum gas station decentralized automatic control system according to any one of claims 1 to 9, wherein: the control host is connected with the mobile phone APP through the wireless communication module, and the mobile phone APP is connected with the cloud server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122576885.8U CN216792756U (en) | 2021-10-26 | 2021-10-26 | Distributed automatic control system of liquefied petroleum gas station |
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| CN202122576885.8U CN216792756U (en) | 2021-10-26 | 2021-10-26 | Distributed automatic control system of liquefied petroleum gas station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922482A (en) * | 2022-06-22 | 2022-08-19 | 珠海市绿捷创展集成房屋技术有限公司 | High fire-resistant grade integrates module petroleum liquefied gas station and stores management room |
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2021
- 2021-10-26 CN CN202122576885.8U patent/CN216792756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922482A (en) * | 2022-06-22 | 2022-08-19 | 珠海市绿捷创展集成房屋技术有限公司 | High fire-resistant grade integrates module petroleum liquefied gas station and stores management room |
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Effective date of registration: 20240223 Address after: Room 501, Building 1, No. 105 Yanhe East Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 Patentee after: Jiao Yiping Country or region after: China Patentee after: Sun Dehua Address before: 570145 No. a5002-308, zone A1, Fuxing City, No. 32, Binhai Avenue, Longhua District, Haikou City, Hainan Province Patentee before: Hainan puran Software Technology Co.,Ltd. Country or region before: China |
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