CN220584580U - Multi-gun control device for gas station - Google Patents
Multi-gun control device for gas station Download PDFInfo
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- CN220584580U CN220584580U CN202321983778.XU CN202321983778U CN220584580U CN 220584580 U CN220584580 U CN 220584580U CN 202321983778 U CN202321983778 U CN 202321983778U CN 220584580 U CN220584580 U CN 220584580U
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- gun
- interface
- plc
- control device
- gas station
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- 239000007788 liquid Substances 0.000 claims abstract description 31
- 101100408464 Caenorhabditis elegans plc-1 gene Proteins 0.000 claims 3
- 238000012806 monitoring device Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model discloses a multi-gun control device of a gas station, which comprises a PLC (programmable logic controller), a gun signal interface No. 1, a gun signal interface No. 2, a gun signal interface No. 3, a gun signal interface No. 4, a immersed pump control output interface, a pressure sensing interface, a liquid level sensing interface, a pump outlet pressure setting interface and a frequency converter. The utility model has reasonable design, whether the storage tank needs to be pressurized or not is determined by detecting the pressure of the storage tank, the frequency of the frequency converter of the immersed pump is fixed to the value at the moment and is not changed temporarily after the pre-cooling or small circulating signal is collected by the PLC, the automatic frequency regulation control can be started again after the pre-cooling or small circulating signal disappears, and the pre-cooling and liquid adding signal of the PLC is added with the post-pump overpressure alarm reset function, so that the overpressure alarm can be reset on the liquid adding machine, and the pre-cooling and liquid adding of the liquid adding machine can be operated.
Description
Technical Field
The utility model relates to the technical field of liquefied natural gas filling station control equipment, in particular to a multi-gun control device for a filling station.
Background
Most of the conventional gas filling stations at present are pumps below 18.5kw, one pump can be used for 2 guns, and the conventional control system can realize normal operation for controlling the frequency converter. When a pump is used for 3 or 4 guns, when one gun is suddenly stopped to be filled or 2 guns are pre-cooled by adding guns, the pressure of a pipeline is suddenly increased because the frequency converter is adjusted less quickly, and overpressure discharge is easily caused.
Some manufacturers still use conventional station control systems in controlling the gun using a pump pair 3 or 4, but add communication with the filling machine, and when a pressure overpressure is detected, the pressure relief is opened by a small circulation valve of the filling machine to avoid the overpressure. Therefore, a multi-gun control device for a gas station is provided for solving the problems.
Disclosure of Invention
The utility model aims to solve the problems and provide a multi-gun control device for a gas station.
The utility model realizes the purpose through the following technical scheme, and the multi-gun control device for the gas station comprises a PLC controller and a frequency converter, wherein gun signal interface groups are equidistantly arranged on one side of the PLC controller, a pressure sensing interface, a liquid level sensing interface and a pump outlet pressure setting interface are respectively arranged on one end face of the PLC controller, and the frequency converter is electrically connected with a immersed pump control output interface positioned on the PLC controller.
Preferably, the gun signal interface group comprises a gun signal interface No. 1, a gun signal interface No. 2, a gun signal interface No. 3 and a gun signal interface No. 4, and the gun signal interfaces are respectively and electrically connected with the external electric control valves on the guns.
Preferably, the immersed pump control output interface is electrically connected with the immersed pump through a cable, and the liquid outlets of the immersed pump are respectively connected with the four guns through the pipe body.
Preferably, the frequency converter is electrically connected with the PLC.
Preferably, the pressure sensing interface and the liquid level sensing interface are respectively and electrically connected with a pressure sensor and a liquid level sensor in the storage tank through cables.
The beneficial effects of the utility model are as follows: whether the storage tank needs to be pressurized or not is determined by detecting the pressure of the storage tank, the frequency converter of the immersed pump is fixed to a numerical value at the moment immediately after the gun precooling or small circulating signal is collected by the PLC controller and is not changed temporarily, automatic frequency regulation control can be started again after the precooling or small circulating signal disappears, and an overpressure alarm reset function after the pump is added to the precooling and liquid adding signals of the PLC controller, so that overpressure alarm can be reset on the liquid adding machine, and the precooling and liquid adding of the liquid adding machine can be operated.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a control flow chart of the present utility model.
In the figure: 1. a PLC controller; 11. gun number 1 signal interface; 12. gun number 2 signal interface; 13. gun number 3 signal interface; 14. gun number 4 signal interface; 15. a immersed pump control output interface; 16. a pressure sensing interface; 17. a liquid level sensing interface; 18. a pump outlet pressure setting interface; 2. a frequency converter.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. 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.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, 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.
Referring to fig. 1-2, a multi-gun control device for a gas station includes a PLC controller 1 and a frequency converter 2, wherein gun signal interface groups are equidistantly arranged on one side of the PLC controller 1, a pressure sensing interface 16, a liquid level sensing interface 17 and a pump outlet pressure setting interface 18 are respectively arranged on one end face of the PLC controller 1, and the frequency converter 2 is electrically connected with a immersed pump control output interface 15 located on the PLC controller 1.
The gun signal interface group comprises a gun signal interface No. 1 11, a gun signal interface No. 2, a gun signal interface No. 3, a gun signal interface No. 13 and a gun signal interface No. 4, and the four gun signal interfaces are respectively and electrically connected with the external electric control valves on the four guns; the immersed pump control output interface 15 is electrically connected with the immersed pump through a cable, and the liquid outlets of the immersed pump are respectively connected with the four handles through the pipe body; the frequency converter 2 is electrically connected with the PLC controller 1; the pressure sensing interface 16 and the liquid level sensing interface 17 are respectively and electrically connected with a pressure sensor and a liquid level sensor in the storage tank through cables.
When the device is used, whether the device can run or not is determined by detecting the liquid level of the storage tank, and whether the storage tank needs to be pressurized or not is determined by detecting the pressure of the storage tank; when one or more liquid filling guns are used for filling liquid, the liquid filling guns start to pre-cool or to circulate slightly, after the pre-cool or the circulate signal of the liquid filling guns is collected by the PLC controller 1, the frequency of the frequency converter 2 of the immersed pump is fixed to the value at the moment and is not changed temporarily, and when the pre-cool or the circulate signal disappears, the automatic frequency adjustment control is started again; the pre-cooling and liquid adding signals transmitted to the PLC are added with a post-pump overpressure alarm reset function, so that the overpressure alarm can be reset on the liquid adding machine, and the pre-cooling and liquid adding of the liquid adding machine can be operated.
The circuit, the electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (5)
1. A multi-gun control device for a gas station, which is characterized in that: the intelligent monitoring device comprises a PLC (programmable logic controller) 1 and a frequency converter 2, wherein gun signal interface groups are arranged on one side of the PLC 1 at equal intervals, a pressure sensing interface 16, a liquid level sensing interface 17 and a pump outlet pressure setting interface 18 are respectively arranged on one end face of the PLC 1, and the frequency converter 2 is electrically connected with an immersed pump control output interface 15 which is arranged on the PLC 1.
2. A multi-gun control device for a gas station as defined in claim 1, wherein: the gun signal interface group comprises a gun signal interface No. 1 (11), a gun signal interface No. 2 (12), a gun signal interface No. 3 (13) and a gun signal interface No. 4 (14), and the gun signal interfaces are respectively electrically connected with the external electric control valves on the four guns.
3. A multi-gun control device for a gas station as defined in claim 1, wherein: the immersed pump control output interface (15) is electrically connected with the immersed pump through a cable, and the liquid outlets of the immersed pump are respectively connected with the four guns through the pipe body.
4. A multi-gun control device for a gas station as defined in claim 1, wherein: the frequency converter (2) is electrically connected with the PLC (1).
5. A multi-gun control device for a gas station as defined in claim 1, wherein: the pressure sensing interface (16) and the liquid level sensing interface (17) are respectively and electrically connected with a pressure sensor and a liquid level sensor in the storage tank through cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983778.XU CN220584580U (en) | 2023-07-26 | 2023-07-26 | Multi-gun control device for gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321983778.XU CN220584580U (en) | 2023-07-26 | 2023-07-26 | Multi-gun control device for gas station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220584580U true CN220584580U (en) | 2024-03-12 |
Family
ID=90113566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321983778.XU Active CN220584580U (en) | 2023-07-26 | 2023-07-26 | Multi-gun control device for gas station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220584580U (en) |
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2023
- 2023-07-26 CN CN202321983778.XU patent/CN220584580U/en active Active
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