CN220707084U - Drain system for hydrogenation station pipe ditch - Google Patents
Drain system for hydrogenation station pipe ditch Download PDFInfo
- Publication number
- CN220707084U CN220707084U CN202322444820.7U CN202322444820U CN220707084U CN 220707084 U CN220707084 U CN 220707084U CN 202322444820 U CN202322444820 U CN 202322444820U CN 220707084 U CN220707084 U CN 220707084U
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- China
- Prior art keywords
- plc controller
- trench
- submersible pump
- electrically connected
- hydrogen
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 44
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 44
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000004891 communication Methods 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000007788 liquid Substances 0.000 description 22
- 230000001131 transforming effect Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The application discloses hydrogenation station trench drain aims at solving the problem that the trench has potential safety hazard because of easy ponding corrodes the pipeline when the current hydrogenation station adopts open trench to lay hydrogen delivery pipeline. The sewage disposal system comprises a PLC controller, a power supply module, a driving module and a submersible pump arranged at the bottom of a pipe ditch, wherein the driving module comprises an alternating current contact which is correspondingly and electrically connected with the power supply module and the submersible pump, a control coil which is correspondingly and electrically connected with an output port of the PLC controller, and a feedback contact which is correspondingly and electrically connected with an input port of the PLC controller. The system has the advantages of high safety and reliability and the like.
Description
Technical Field
The application relates to the technical field of hydrogenation station equipment, in particular to a hydrogenation station pipe ditch sewage disposal system.
Background
The hydrogen energy source is a secondary clean energy source, and releases energy by a chemical reaction of hydrogen and oxygen. Its advantages include high combustion heat value, no pollution, and high reproducibility. The hydrogen energy source can be used in various fields such as traffic, electric power, industry, aerospace and the like, and is one of important directions of energy source development in the future. The hydrogen energy sources are produced in various modes, such as water electrolysis, natural gas reforming and biomass gasification.
In addition, the hydrogen addition station is a service site for providing hydrogen fuel, and can provide fuel for the hydrogen fuel cell vehicle, and a pipe trench in the hydrogen addition station is a trench for laying a hydrogen pipeline. For safety reasons, when the hydrogen pipeline in the hydrogen station is laid by adopting an open trench, the hydrogen pipeline cannot be laid by adopting a common trench with air, steam-water pipelines and the like, so that the hydrogen station is usually provided with at least two trenches for laying the hydrogen pipeline and other common engineering pipelines respectively.
However, the inventor of the application found in production practice that the conventional internal pipe ditches of the hydrogenation station are all below the ground level of the hydrogenation station, when being affected by rainwater, water is extremely easy to store in the pipe ditches, so that the hydrogen pipeline reacts with the rainwater to cause corrosion phenomenon, and then the problem that the water in the pipe ditches enters the pipeline to influence the normal operation of subsequent pipeline equipment and the hydrogen leaks from the corrosion part exists, so that the potential safety hazard is large.
The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.
Disclosure of Invention
In view of at least one of the above technical problems, the present disclosure provides a sewage disposal system for a hydrogen adding station pipe ditch, which aims to solve the problem that when an existing hydrogen adding station adopts an open ditch to lay a hydrogen conveying pipeline, the pipe ditch has potential safety hazard due to easy water accumulation and corrosion of the pipeline.
According to one aspect of the disclosure, there is provided a sewage disposal system for a pipe ditch of a hydrogen adding station, which comprises a PLC controller, a power supply module, a driving module and a submersible pump arranged at the bottom of the pipe ditch, wherein the driving module comprises an alternating current contact which is correspondingly and electrically connected with the power supply module and the submersible pump, a control coil which is correspondingly and electrically connected with an output port of the PLC controller, a feedback contact which is correspondingly and electrically connected with an input port of the PLC controller, a liquid level meter which is vertically arranged in the pipe ditch and correspondingly and electrically connected with the input port of the PLC controller, and a hydrogen detector which is arranged at a position corresponding to the upper part of the pipe line in the pipe ditch and is electrically connected with the corresponding input port of the PLC controller.
In some embodiments of the present disclosure, the power module includes a mains unit, a rectifying and transforming unit disposed downstream of the mains unit.
In some embodiments of the present disclosure, the ac contact is correspondingly electrically connected with the mains unit.
In some embodiments of the present disclosure, the system further comprises a touch screen in communication with the inter-PLC controller RS232/RS 485.
In some embodiments of the present disclosure, the system further comprises a scram button correspondingly electrically connected between the power module and a corresponding input port of the PLC controller.
In some embodiments of the present disclosure, the system further comprises a power indicator light, a submersible pump operation indicator light, and an audible and visual alarm electrically connected between the power module and the parallel output port of the PLC controller.
In some embodiments of the disclosure, the lower measurement limit of the liquid level meter is correspondingly positioned at the bottom of the pipe trench, and the upper measurement limit of the liquid level meter is higher than the bottom of the pipe trench.
One or more technical solutions provided in the embodiments of the present application at least have any one of the following technical effects or advantages:
1. due to the adoption of the liquid level meter and the hydrogen detector, the monitoring of the water stored in the pipe ditch is realized so as to facilitate timely pumping and discharging operation, and the monitoring of hydrogen leakage in the pipe ditch is performed at any time, so that the phenomenon that the water invades the pipe and the hydrogen leaks from the rusted part due to the corrosion of the hydrogen conveying pipeline in the pipe ditch is avoided, and the safety of the hydrogenation station is ensured.
2. The driving module for the submersible pump is provided with a feedback contact, so that the feedback contact acts after being influenced by the control coil and when the alternating current contact acts, and then the feedback contact is fed back to the PLC controller, thereby confirming the power-on working state of the submersible pump and improving the stability and reliability of the system.
3. The arrangement of the touch screen enables the pipe ditch sewage disposal system to have easy operability, can feed back the working information of the liquid level meter and the submersible pump to the screen, and controls the system to act according to the screen display information.
Drawings
FIG. 1 is a schematic block diagram of a drain system in an embodiment of the present application.
FIG. 2 is an electrical schematic diagram of a trench drain system in an embodiment of the present application.
In the above figures, 1 is a PLC controller, 21 is a utility power unit, 22 is a rectifying and transforming unit, 3 is a submersible pump, 4 is a driving module, 41 is an ac contact, 42 is a control coil, and 43 is a feedback contact. 5 is the liquid level gauge, 6 is the hydrogen detector, 7 is the touch-sensitive screen, 8 is the scram button, 91 is the power pilot lamp, 92 is immersible pump operation pilot lamp, 93 is audible and visual alarm.
Detailed Description
The procedures involved or relied on in the following embodiments are conventional procedures or simple procedures in the technical field, and those skilled in the art can make routine selections or adaptation according to specific application scenarios.
The devices referred to in the examples below are all conventional commercial products unless otherwise specified.
For better understanding of the technical solutions of the present application, the following detailed description will refer to the accompanying drawings and specific embodiments.
The embodiment discloses a drain system of a hydrogenation station pipe ditch, which mainly comprises a PLC controller, a power supply module, a driving module and a submersible pump, and is shown in FIG 1.
The PLC is a control core of the pipe ditch sewage disposal system, is arranged in a control cabinet in the control room of the hydrogen station, judges sensor data through preset logic, and further drives the submersible pump to act. In this example, the PLC controller adopts a siemens PLC with model 1215-DC, and takes into account that a sensor such as a liquid level meter needs to be connected subsequently, and the data transmitted by the sensor is an analog quantity, so in this embodiment, the PLC controller further includes an analog quantity input module, through which the PLC can receive analog quantity data, so as to obtain sensing data such as a liquid level in a pipe ditch.
The power module is used for providing the power required by the operation of the sewage disposal system, and because different devices in the system adopt different levels of voltage, in this embodiment, referring to fig. 2, the power module comprises a mains supply unit 21 and a rectifying and transforming unit 22, wherein in this embodiment, the mains supply unit 21 adopts three-phase power for driving the submersible pump to work; the rectification and transformation unit 22 is arranged at the downstream of the mains supply unit and is used for converting 220V alternating current mains supply into 24V direct current so as to realize power supply to the PLC controller 1 and each sensor.
In order to realize the control of the PLC controller 1 on the submersible pump 3, a driving module 4 is provided in this example, referring to fig. 2, and the driving module includes ac contacts 41 connected between the mains supply unit 21 and the submersible pump 3, in this example, each ac contact is a normally open contact, and includes three contacts, which are respectively connected to lines corresponding to three terminals of the submersible pump 3, so as to realize the control of on-off of the lines. In addition, the control coil 42 is used for controlling the action of the ac contact 41, specifically, two ends of the control coil 42 are respectively connected to the output end of the rectifying and transforming unit 22 and the output port of the PLC controller 1, so that whether the control coil 42 is powered on or not is controlled through the output level condition of the corresponding port of the PLC controller 1, and further, the opening and closing of the ac contact 41 are controlled, so as to realize the control of the start and stop of the submersible pump 3.
In this embodiment, since the submersible pump 3 is disposed at the bottom of the trench to perform pumping operation of the water body, and the trench has a certain space volume, the pumping operation of the water body in the trench requires a certain time, so that the contact point of the submersible pump 3 is difficult to find in time when the submersible pump is not controlled to be closed. Therefore, in order to ensure the control effect of the submersible pump 3, in the present embodiment, a feedback contact 43 is provided, and the feedback contact 43 is similarly controlled by the control coil 42, so that the ac contact 41 operates and also operates. And the two ends of the feedback contact 43 are respectively connected to the output end of the rectifying and transforming unit 22 and the input port of the PLC controller, thereby feeding back the power-on and power-off information of the control coil 42 to the PLC controller, thereby ensuring the control reliability of the ac contact 41 and further ensuring the reliable operation of the submersible pump 3 in terms of control.
In order to accurately obtain the water accumulation in the pipe ditch, in the embodiment, a liquid level meter 5 is vertically arranged in the pipe ditch and is perpendicular to the horizontal plane at the bottom of the pipe ditch, and the liquid level meter 5 adopts analog data communication, so that referring to fig. 2, an output port of the liquid level meter 5 is electrically connected with an analog module corresponding to the PLC controller, so that the PLC controller can acquire the liquid level information in the pipe ditch in real time. In addition, considering that the hydrogen transmission pipeline is not attached to the bottom of the pipe trench in the pipe trench, the bottom of the pipeline is provided with a certain distance, so in this embodiment, in order to reliably monitor whether the water collected in the pipe trench contacts the pipeline, in this embodiment, the measurement upper limit of the liquid level meter 5 is higher than the bottom of the pipeline in the pipe trench, so that when the water collected in the pipe trench is flooded to the bottom of the pipeline, the liquid level meter 5 can timely sense and transmit liquid level information to the PLC controller for further action. In addition, in this embodiment, considering that if there is a water body in the pipe ditch, the evaporation of the water body will cause an increase in humidity in the pipe ditch, and thus will slowly cause corrosion to the pipe to some extent, so in this example, the lower measurement limit of the liquid level meter 5 is correspondingly located at the bottom of the pipe ditch, and further, whether there is still water in the pipe ditch is sensed, so as to facilitate timely emptying.
Because hydrogen is inflammable and explosive and has high danger coefficient, in order to avoid leakage of pipelines in the pipe ditch after being rusted by water, the hydrogen detector 6 is arranged in the pipe ditch, and referring to fig. 2, the hydrogen detector 6 is also in analog communication, so that the hydrogen detector 6 is connected to an analog module corresponding to the PLC controller, and data communication between the hydrogen detector 6 and the PLC controller is realized. In addition, in this example, a plurality of hydrogen detectors are arranged in the trench along the trench, and each hydrogen detector is respectively arranged at a position above a corresponding pipeline in the trench in consideration of hydrogen characteristics, so that whether hydrogen leakage occurs can be accurately monitored.
The pipe ditch sewage disposal system is further provided with a touch screen 7, the type of the touch screen in the example is TPC107GI, and real-time display of monitoring information and convenient control of the system are realized through the touch screen. Referring to fig. 2, the touch screen 7 and the PLC controller implement RS485 communication through a network port, and in other embodiments, RS232 communication is adopted between the touch screen 7 and the PLC controller. And the PLC controller drives the touch screen to display information such as liquid level, working state of the submersible pump and the like, and realizes the input of control information to the PLC controller through the touch screen 7.
Referring to fig. 2, the emergency stop button 8 is used for implementing an emergency stop operation of the system, and two ends of the emergency stop button 8 are respectively connected to an output end of the rectifying and transforming unit and an input end of the PLC controller, so that when the emergency stop button is pressed, a corresponding port of the PLC controller obtains emergency stop control information, and further the emergency stop of the whole trench sewage system is controlled. In addition, in the present embodiment, a power indicator lamp 91, a submersible pump operation indicator lamp 82, and an audible and visual alarm 93 are further provided, so that the display of the operating state, the indication of the submersible pump operation state, and the audible and visual alarm when hydrogen leaks are respectively realized. Referring specifically to fig. 2, the power indicator 91, the submersible pump operation indicator 82, and the audible and visual alarm 93 are arranged in parallel, and two ends of the power indicator, the submersible pump operation indicator 82, and the audible and visual alarm 93 are respectively connected to the output end of the rectifying and transforming unit and each output port corresponding to the PLC controller.
In other embodiments, a rain detector is further arranged at the top of a station shed of the hydrogenation station so as to sense whether precipitation occurs, the rain detector is correspondingly in communication connection with an input port of the PLC, in addition, at least two submersible pumps are arranged in the pipe ditch, when the rain detector senses the precipitation, the PLC only controls one submersible pump to work at low frequency, when a liquid level meter in the pipe ditch monitors that water body invades to the height position at the bottom of the pipeline, the submersible pump is controlled to work at high frequency, and after a certain time, if the liquid level in the pipe ditch still rises, the other submersible pump is started to work for pumping and discharging, so that the water surface is ensured to be at the height below the bottom of the pipeline; and determining the running number of the submersible pump at proper time; therefore, the total drainage amount of each submersible pump can be regulated and controlled according to the rainfall, and the phenomenon that the service life of the submersible pump is influenced by frequent start and stop of the high-power operation of the submersible pump when the rainfall is small is avoided. In addition, when the rainwater detector detects that precipitation stops, the PLC controller simultaneously controls the two submerged pumps to pump and drain accumulated water in the pipe ditch until no accumulated water exists in the pipe ditch.
In addition, in this implementation, the bottom is slope form in the trench, and one side is high at the bottom of the side, and is located the trench end department of lower side and has seted up the pit to be convenient for ponding ability to collect to the pit department along the slope, and set up the immersible pump in the pit, carry out ponding drainage. In other embodiments, the bottom of the pipe ditch is arranged in a convex manner, namely, the middle of the pipe ditch is high and the two sides of the pipe ditch are low, and the groove pits are arranged at the lower ends of the two sides of the pipe ditch, so that accumulated water can be collected to the groove pits of the two sides along the slope, and the submersible pumps are respectively arranged in the groove pits of the two sides, and the accumulated water is pumped and discharged correspondingly according to the precipitation condition. In other embodiments, the bottom of the pipe ditch is provided with a plurality of convex sections due to the longer pipe ditch, and the lower parts of the two sides of each convex section are respectively provided with a groove pit for arranging the submersible pump to pump and drain the accumulated water. In other embodiments, the level gauge is disposed within a corresponding sump pit.
When the pipe ditch sewage disposal system is used, if an emergency situation occurs and an emergency stop button is pressed, or a hydrogen detector detects hydrogen leakage alarm, an audible and visual alarm alarms to remind a worker to process, a touch screen displays alarm content and records, and the system interlocking equipment is in emergency stop. If the emergency stop button is not pressed, and the hydrogen detector does not detect hydrogen leakage alarm, the touch screen selects an automatic mode, and when the liquid level of the liquid level meter positioned in the pipe ditch is higher than the upper limit set value, the submersible pump operates to drain water, and the operation indicator lamp of the submersible pump is interlocked to be lighted; when the liquid level gauge detects that the water level is lower than the lower limit set value, the submersible pump stops, and the running indicator lamp of the submersible pump is interlocked to be turned off.
While certain preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the utility model. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (7)
1. The utility model provides a hydrogenation station trench drain, its characterized in that includes PLC controller, power module, drive module, locates the immersible pump of trench bottom, drive module including correspond the electricity connect in power module with alternating current contact between the immersible pump, with the control coil that PLC controller output port corresponds the electricity and is connected to the feedback contact of PLC controller input port, this drain still includes in the trench vertical setting and correspond the electricity be connected to the level gauge of PLC controller input port, locate trench inner tube upper portion correspond position department and with the hydrogen detector that PLC controller corresponds input port electricity and is connected.
2. The utility drain system of claim 1, wherein the power module comprises a utility unit, a rectifier transformer unit disposed downstream of the utility unit.
3. The utility drain system of claim 2, wherein the ac contacts are electrically connected to the utility unit.
4. The hydro station trench drain system of claim 1, further comprising a touch screen in communication with the PLC controller at RS232/RS 485.
5. The system of claim 1, further comprising a scram button electrically connected between the power module and a corresponding input port of the PLC controller.
6. The system of claim 1, further comprising a power indicator, a submersible pump operation indicator, and an audible and visual alarm electrically connected between the power module and the parallel output port of the PLC controller.
7. The hydro-station trench drain system of claim 1, wherein the lower measurement limit of the level gauge corresponds to a position at the bottom of the trench, and wherein the upper measurement limit of the level gauge is higher than the bottom of the tube in the trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322444820.7U CN220707084U (en) | 2023-09-08 | 2023-09-08 | Drain system for hydrogenation station pipe ditch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322444820.7U CN220707084U (en) | 2023-09-08 | 2023-09-08 | Drain system for hydrogenation station pipe ditch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220707084U true CN220707084U (en) | 2024-04-02 |
Family
ID=90448441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322444820.7U Active CN220707084U (en) | 2023-09-08 | 2023-09-08 | Drain system for hydrogenation station pipe ditch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220707084U (en) |
-
2023
- 2023-09-08 CN CN202322444820.7U patent/CN220707084U/en active Active
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