CN218032661U - Monitoring control transmission system for natural gas peak regulation transmission - Google Patents
Monitoring control transmission system for natural gas peak regulation transmission Download PDFInfo
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- CN218032661U CN218032661U CN202222347528.9U CN202222347528U CN218032661U CN 218032661 U CN218032661 U CN 218032661U CN 202222347528 U CN202222347528 U CN 202222347528U CN 218032661 U CN218032661 U CN 218032661U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 239000003345 natural gas Substances 0.000 title claims abstract description 81
- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 56
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a monitoring control transmission system of natural gas peak regulation transmission, a natural gas main pipeline and a gas supply main body connected with the natural gas main pipeline through a gas supply sub-pipeline, wherein a solenoid valve and a peristaltic pump are arranged in the gas supply sub-pipeline, a first pressure sensor is arranged in the natural gas main pipeline, and the solenoid valve and the first pressure sensor are respectively connected with a gas supply control circuit; the air supply control circuit comprises a plurality of piezoelectric comparison devices, and the piezoelectric comparison devices are respectively connected with the first pressure sensor and used for receiving the pressure monitoring voltage output by the first pressure sensor; the air supply control circuit comprises a plurality of reference piezoelectric input devices which are respectively connected with the piezoelectric comparison devices and used for outputting different reference voltages to different piezoelectric comparison devices; the gas supply control circuit comprises a plurality of first driving devices which are respectively connected with corresponding piezoelectric comparison devices, and the piezoelectric comparison devices output corresponding high-voltage signals and then control the electromagnetic valves and the peristaltic pumps connected with the piezoelectric comparison devices to be electrified.
Description
Technical Field
The utility model relates to an automatic control technical field especially relates to a monitoring control transmission system of natural gas peak regulation transmission.
Background
The city natural gas has time variability of gas utilization, and the peak regulation is to ensure the pipeline pressure at the peak of gas utilization. The main peak regulation modes include high-pressure ball tank gas storage peak regulation, underground well gas storage peak regulation and the like. In the actual peak regulation process, because the air supply amount and the air supply pressure of each main body to the urban natural gas pipeline are limited, synchronous joint control peak regulation control needs to be adopted according to the change of the pressure in the urban natural gas pipeline, for example, when the urban natural gas pipeline is very low, more main bodies need to supply air to the urban natural gas pipeline. When the urban natural gas pipeline is low, for example, fewer main bodies are needed to supplement gas into the urban natural gas pipeline.
In the prior art, the air supply main bodies cannot be automatically controlled according to the pressure in the natural gas pipeline, and the joint control air supply of a plurality of main bodies is realized.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a monitoring control transmission system of natural gas peak regulation transmission can control the air feed main part according to the pressure in the natural gas line, realizes the allies oneself with accuse air feed of a plurality of main parts.
The utility model discloses a first aspect of the embodiment provides a monitoring control transmission system of natural gas peak regulation transmission, include:
the system comprises a natural gas main pipeline and a gas supply main body connected with the natural gas main pipeline through a gas supply sub-pipeline, wherein an electromagnetic valve and a peristaltic pump are arranged in the gas supply sub-pipeline, a first pressure sensor is arranged in the natural gas main pipeline, and the electromagnetic valve and the first pressure sensor are respectively connected with a gas supply control circuit;
the air supply control circuit comprises a plurality of piezoelectric comparison devices, and the piezoelectric comparison devices are respectively connected with the first pressure sensor and used for receiving the pressure monitoring voltage output by the first pressure sensor;
the air supply control circuit comprises a plurality of reference piezoelectric input devices which are respectively connected with the piezoelectric comparison devices and used for outputting different reference voltages to different piezoelectric comparison devices;
the gas supply control circuit comprises a plurality of first driving devices which are respectively connected with corresponding piezoelectric comparison devices, and the piezoelectric comparison devices output corresponding high-voltage signals and then control electromagnetic valves and peristaltic pumps connected with the piezoelectric comparison devices to be electrified;
each piezoelectric comparison device is used for outputting a high-voltage signal when the pressure monitoring voltage is greater than the reference voltage.
Optionally, in a possible implementation manner of the first aspect, the reference piezoelectric input device includes a first reference resistor, a second reference resistor, and a third reference resistor that are sequentially connected in series and grounded, and a connection node of the first reference resistor and the second reference resistor is connected to an inverting input terminal of the piezoelectric comparison device;
the third reference resistance is a variable resistance.
Optionally, in a possible implementation manner of the first aspect, the piezoelectric comparison device is a comparator, forward input ends of the comparators are respectively connected to the first pressure sensors, reverse input ends of the comparators are connected to the reference piezoelectric input device, and output ends of the comparators are connected to the first driving device.
Optionally, in a possible implementation manner of the first aspect, the first driving device includes a first driving resistor and a second driving resistor that are arranged in series to be grounded;
the first driving resistor is connected with the output end of the comparator;
the connection node of the first driving resistor and the second driving resistor is connected with the base electrode of a first driving triode, the emitter electrode of the first driving triode is connected with a third driving resistor in series and is grounded, and the collector electrode of the first driving triode is connected with the electromagnetic valve and the peristaltic pump respectively;
the electromagnetic valve and the peristaltic pump are arranged in parallel, and the electromagnetic valve and the peristaltic pump are respectively connected in series to form a first protection resistor and a second protection resistor;
the connection node of the collector of the driving triode and the first protection resistor is connected with the second protection resistor;
the second driving resistor is a variable resistor.
Optionally, in a possible implementation manner of the first aspect, the method further includes:
the electromagnetic valve is connected with a power supply through a first normally closed contact switch;
the peristaltic pump is connected with a power supply through a second normally closed contact switch;
the first normally closed contact switch and the second normally closed contact switch are controlled by the first electromagnetic coil and the second electromagnetic coil to be opened and closed respectively.
Optionally, in a possible implementation manner of the first aspect, the gas supply apparatus further includes a gas cut-off control circuit, where the gas cut-off control circuit includes a second pressure sensor, the second pressure sensor is disposed in the gas supply main body, the second pressure sensor is connected to a positive input end of the comparator, and the first pressure sensor is connected to a negative input end of the comparator;
the output end of the comparator is connected with the second driving device.
Optionally, in a possible implementation manner of the first aspect, the second driving device includes a fourth driving resistor and a fifth driving resistor that are connected in series to ground;
the fourth driving resistor is connected with the output end of the comparator and the fifth driving resistor in series and is grounded;
a connecting node of the fourth driving resistor and the fifth driving resistor is connected with a base electrode of a second driving triode, an emitting electrode of the second driving triode is connected with a sixth driving resistor in series and is grounded, and a collector electrode of the second driving triode is connected with a first electromagnetic coil;
the first electromagnetic coil and the second electromagnetic coil are arranged in parallel, and are respectively provided with a corresponding third protective resistor and a corresponding fourth protective resistor in series;
the connection node of the collector of the second driving triode and the second protection resistor is connected with the third protection resistor;
the fifth driving resistor is a variable resistor.
The utility model provides a pair of monitoring control transmission system of natural gas peak regulation transmission can monitor the pressure of the natural gas in the natural gas main line to when the pressure of natural gas reduces, the air feed main part that confirms at least one air feeder pipeline to correspond carries out air feed processing to the natural gas main line according to natural gas pressure, makes the utility model discloses can confirm the air feeder pipeline of corresponding quantity according to the pressure of the natural gas in the natural gas main line and carry out the air feed, realize carrying out digital natural gas peak regulation based on analog circuit when the gas peak period, effectively ensure the supply of natural gas.
The utility model discloses when carrying out joint peak regulation through a plurality of air feed main parts, can monitor the pressure in the air feed main part, when pressure in the air feed main part is less than the pressure in the natural gas main pipe, automatic carry out the disconnected confession processing to the air feed main part, avoid because the pressure in the air feed main part is less than the pressure in the natural gas main pipe and the condition that leads to the natural gas reflux appears, stability when the guarantee natural gas peak regulation.
Drawings
FIG. 1 is a schematic illustration of a natural gas pipeline;
FIG. 2 is a schematic diagram of a first embodiment of a gas supply control circuit;
FIG. 3 is a schematic diagram of a second embodiment of a gas supply control circuit;
fig. 4 is a schematic diagram of a gas cut-off control circuit.
Reference numerals:
0. a natural gas main pipe; 11. an electromagnetic valve; 12. a peristaltic pump; 13. a flow meter; 14. the air supply main body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, is intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprising a, B and C", "comprising a, B, C" means that all three of a, B, C are comprised, "comprising a, B or C" means comprising one of three of a, B, C, "comprising a, B and/or C" means comprising any 1 or any 2 or 3 of three of a, B, C.
It should be understood that, in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, the term "if" may be interpreted as "at \8230; …" or "in response to a determination" or "in response to a detection" depending on the context.
The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
The utility model provides a monitoring control transmission system of natural gas peak regulation transmission, as shown in figure 1, including natural gas main line 0 and with the natural gas main line through the air feed main part 14 that the air feed sub-pipeline is connected, be provided with solenoid valve 11, peristaltic pump 12 in the air feed sub-pipeline, be provided with a pressure sensor in the natural gas main line, solenoid valve, a pressure sensor are connected with air feed control circuit respectively. The natural gas main pipeline is used for supplying gas to all users in a city, the gas supply main bodies can be gas storage tanks, gas storage wells and the like, and different gas supply main bodies (the gas storage tanks and the gas storage wells) supply gas to the natural gas main pipeline through corresponding gas supply sub-pipelines. The solenoid valve can control the connected state of air feed sub-pipeline, and when the solenoid valve was opened, the air feed main part passed through the air feed sub-pipeline and supplies air to the natural gas main line, drives the natural gas in the air feed main part through the peristaltic pump and flows in to the natural gas main line. Furthermore, a flow meter 13 may be provided in the gas supply sub-pipe, and the flow rate of the natural gas in the gas supply sub-pipe may be monitored by the flow meter.
The utility model provides a technical scheme, be equipped with first pressure sensor in natural gas main pipe department, when gas pressure is lower in the natural gas main pipe, then corresponding first pressure sensor's output voltage value is big more, the positive input end that corresponds the comparator is big more, when positive input end voltage is greater than negative input end voltage, then can control solenoid valve and peristaltic pump begin to carry the natural gas in to the natural gas main pipe, make gas pressure maintain stably in the natural gas main pipe, realize the joint control air feed of a plurality of main parts, the daily gas use of resident has been ensured.
As shown in fig. 2, the air supply control circuit includes a plurality of piezoelectric comparison devices (U1, U2, UN) respectively connected to the first pressure sensor (S0) for receiving the pressure monitoring voltage output by the first pressure sensor. The utility model provides a technical scheme, air feed control circuit possesses a plurality of piezoelectricity comparison device, piezoelectricity comparison device's quantity is relevant with the quantity of air supply sub-pipeline, piezoelectricity comparison device is the comparator, a pressure sensor is connected with the forward input of comparator, when the detection voltage of the forward input of comparator is greater than reference voltage, then output high voltage signal, can understand, when gas pressure is lower in the natural gas main pipeline, then corresponding a pressure sensor's output voltage value is big more, when gas pressure is higher in the natural gas main pipeline, then corresponding a pressure sensor's output voltage value is less.
The air supply control circuit comprises a plurality of reference piezoelectric input devices which are respectively connected with the piezoelectric comparison devices and used for outputting different reference voltages to different piezoelectric comparison devices. The utility model provides an every air feed control circuit's benchmark piezoelectricity input device's reference voltage can be the same or different, can understand like this, and reference voltage if big more, then only when exporting great pressure monitoring voltage, corresponding piezoelectricity comparator just can export high level signal to control corresponding drive arrangement and carry out work.
The utility model provides a technical scheme, air feed control circuit possesses a plurality of benchmark piezoelectricity input device, benchmark piezoelectricity input device passes through the power and constitutes reference voltage with resistance, reference voltage can be a plurality ofly, can understand, when the interior atmospheric pressure of natural gas main line is low, first pressure sensor's output voltage value can be greater than the fractional reference voltage this moment, when the interior atmospheric pressure of natural gas main line is very low, first pressure sensor's output voltage value can be greater than most reference voltage this moment, convenient follow-up gas pressure that can be to natural gas main line carries out automatically regulated, make the gas pressure in the pipeline remain relatively stable throughout.
The air supply control circuit comprises a plurality of first driving devices which are respectively connected with corresponding piezoelectric comparison devices, and the piezoelectric comparison devices output corresponding high-voltage signals and then control the electromagnetic valves and the peristaltic pumps connected with the piezoelectric comparison devices to be electrified. The technical scheme provided by the utility model, air feed control circuit includes a plurality of first drive arrangement, then switch on the triode among the first drive arrangement after the corresponding high voltage signal of piezoelectricity comparison device output, to solenoid valve, the electricity on the peristaltic pump, control air supply sub-pipeline carries the natural gas in with the natural gas storage tank to the main pipeline of natural gas to can open the air supply sub-pipeline of corresponding quantity according to the main pipeline of natural gas internal gas pressure size and carry out the air feed, make the gas pressure in the pipeline remain relatively stable throughout.
Each piezoelectric comparison device is used for outputting a high-voltage signal when the pressure monitoring voltage is greater than the reference voltage. The utility model provides a technical scheme, every piezoelectricity comparing means is used for when pressure monitoring voltage is greater than reference voltage, exports high voltage signal, and piezoelectricity comparing means is the comparator, and the natural gas main line internal gas pressure undersize of department when the forward input, then the voltage increase, then exports high voltage signal when being greater than reference voltage.
The utility model provides a technical scheme, in a possible embodiment, benchmark piezoelectricity input device, including first benchmark resistance R11, second benchmark resistance R12 and the third benchmark resistance R13 that establish ties ground setting in proper order, the connecting node of first benchmark resistance and second benchmark resistance is connected with piezoelectricity comparing device U1's reverse input. The utility model provides a technical scheme, first reference resistance, second reference resistance and third reference resistance establish ties ground connection in proper order and set up, and wherein, third reference resistance is variable resistance, can be used for adjusting the voltage value size and correspond the voltage value that generates the difference, is convenient for adjust reference voltage's size. The third reference resistance is a variable resistance.
The utility model provides a technical scheme, in a possible implementation mode, piezoelectricity comparing means is the comparator, the forward input end of comparator is connected first pressure sensor respectively, the reverse input end and the benchmark piezoelectricity input device of comparator are connected, the output of comparator with a drive arrangement connects.
The utility model provides a technical scheme, piezoelectricity comparing arrangement is the comparator, and the forward input of comparator is connected first pressure sensor respectively, the reverse input of comparator is connected with benchmark piezoelectricity input device for compare both voltage sizes, when first pressure sensor corresponds voltage and is greater than benchmark piezoelectricity input device's reference voltage, then the output high voltage signal of comparator, make first drive arrangement switch on, control follow-up natural gas tonifying qi, when first pressure sensor corresponds voltage and is less than benchmark piezoelectricity input device's reference voltage, then the output of comparator does not export high voltage signal, make first drive arrangement disconnection, do not carry out the tonifying qi.
The utility model provides a technical scheme, in a possible implementation mode, first drive arrangement is including the first drive resistance R14 and the second drive resistance R15 that series connection ground connection set up, the output of first drive resistance and comparator and second drive resistance series connection ground connection. The connection node of the first driving resistor and the second driving resistor is connected with the base of a first driving triode Q1, the emitting electrode of the first driving triode is connected with a third driving resistor R16 in series and grounded, and the collecting electrode of the first driving triode is connected with the electromagnetic valve KA1 and the peristaltic pump M1 respectively. The electromagnetic valve and the peristaltic pump are arranged in parallel, and the electromagnetic valve and the peristaltic pump are respectively connected in series to form a corresponding first protection resistor R17 and a corresponding second protection resistor R18. And the connecting node of the collector of the first driving triode and the first protection resistor is connected with the second protection resistor. Preferably, the second driving resistor is a variable resistor.
The utility model provides a technical scheme, when comparator output high voltage signal, first drive triode switches on, and the projecting pole and the third drive resistance series ground connection of first drive triode then are in power supply state with solenoid valve and the peristaltic pump that the collecting electrode of first drive triode is connected and carry the natural gas and carry out the tonifying qi.
The technical solution provided by the utility model, in a possible implementation, as shown in fig. 3, still include:
the electromagnetic valve is connected with a power supply through a first normally closed contact switch KG 1.
The peristaltic pump is connected with a power supply through a second normally closed contact switch KG 2.
The first normally closed contact switch and the second normally closed contact switch are controlled to be opened and closed by the first electromagnetic coil LG1 and the second electromagnetic coil LG2 respectively.
The utility model provides a technical scheme sets up corresponding first normally closed contact switch and second normally closed contact switch respectively in solenoid valve and peristaltic pump punishment, and first normally closed contact switch and second normally closed contact switch are controlled by first solenoid and second solenoid control switching respectively, and convenient follow-up when natural gas holder atmospheric pressure is not enough, in time break off solenoid valve and peristaltic pump prevent the different natural gas backward flow of atmospheric pressure.
The technical solution provided by the utility model, in a possible implementation, as shown in fig. 4, still include:
and the gas cut-off control circuit comprises a second pressure sensor S1, the second pressure sensor is arranged in the gas supply main body and is connected with the positive input end of the comparator, and the first pressure sensor is connected with the negative input end of the comparator. The output end of the comparator is connected with the second driving device. The utility model provides a technical scheme, be provided with second pressure sensor in the air feed main part, the positive direction input of comparator is connected to second pressure sensor, the negative-going input of comparator is connected to first pressure sensor, carry out the voltage comparison between the two, when pressure in the air feed main part is less than natural gas main line gas pressure, then the voltage is great relatively, then comparator output high voltage signal, make solenoid conductive control close contact switch disconnection, and then make solenoid valve and peristaltic pump place return circuit be in the state of opening circuit, the peristaltic pump stop work this moment, the solenoid valve stops to go up and makes the air feed electronic pipeline be in the state of disconnection, prevent because pressure in the air feed main part is less than the pressure in the natural gas main line and lead to gaseous backward flow, guarantee natural gas main line gas pressure's stability.
The utility model provides a technical scheme, in a possible implementation mode, second drive arrangement, include fourth drive resistance P14 and the fifth drive resistance P15 that set up with comparator W1's output series ground. The connection node of the fourth driving resistor and the fifth driving resistor is connected with the base electrode of the second driving triode J1, the emitter electrode of the second driving triode is connected with the sixth driving resistor P16 in series and grounded, and the collector electrode of the second driving triode is connected with the first electromagnetic coil LG 1. The first electromagnetic coil and the second electromagnetic coil LG2 are arranged in parallel, and the first electromagnetic coil and the second electromagnetic coil are respectively provided with a corresponding third protective resistor P17 and a corresponding fourth protective resistor P18 in series. And the connection node of the collector of the second driving triode and the third protection resistor is connected with the fourth protection resistor. Wherein, the fifth driving resistor is a variable resistor.
The utility model provides a technical scheme, when comparator output high voltage signal, the second drive triode switches on, and the projecting pole and the sixth drive resistance series ground connection of second drive triode then are in power on state with the solenoid that the collecting electrode of second drive triode is connected, and control normally closed contact switch disconnection for the air feed main part stops to carry out the air feed to the natural gas main line, has prevented the backward flow of natural gas. Preferably, the electromagnetic coils are parallelly connected with the LED display device, the LED display device can be powered on to display, the staff is reminded, and the corresponding air supply main body is supplemented with air.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. Monitoring control transmission system of natural gas peak shaving transmission which characterized in that includes:
the system comprises a natural gas main pipeline and a gas supply main body connected with the natural gas main pipeline through a gas supply sub-pipeline, wherein an electromagnetic valve and a peristaltic pump are arranged in the gas supply sub-pipeline, a first pressure sensor is arranged in the natural gas main pipeline, and the electromagnetic valve and the first pressure sensor are respectively connected with a gas supply control circuit;
the air supply control circuit comprises a plurality of piezoelectric comparison devices, and the piezoelectric comparison devices are respectively connected with the first pressure sensor and used for receiving the pressure monitoring voltage output by the first pressure sensor;
the air supply control circuit comprises a plurality of reference piezoelectric input devices which are respectively connected with the piezoelectric comparison devices and used for outputting different reference voltages to different piezoelectric comparison devices;
the gas supply control circuit comprises a plurality of first driving devices which are respectively connected with corresponding piezoelectric comparison devices, and the piezoelectric comparison devices output corresponding high-voltage signals and then control electromagnetic valves and peristaltic pumps connected with the piezoelectric comparison devices to be electrified;
each piezoelectric comparison device is used for outputting a high-voltage signal when the pressure monitoring voltage is greater than the reference voltage.
2. The monitoring and control transmission system of peak shaving transmission of natural gas according to claim 1,
the reference piezoelectric input device comprises a first reference resistor, a second reference resistor and a third reference resistor which are sequentially connected in series and grounded, and a connecting node of the first reference resistor and the second reference resistor is connected with the reverse input end of the piezoelectric comparison device;
the third reference resistance is a variable resistance.
3. The monitoring and control transmission system of peak shaving transmission of natural gas according to claim 2,
the piezoelectric comparison device is a comparator, a forward input end of the comparator is connected with the first pressure sensor, a reverse input end of the comparator is connected with the reference piezoelectric input device, and an output end of the comparator is connected with the first driving device.
4. A monitoring and control transmission system of peak shaving transmission of natural gas according to claim 3,
the first driving device comprises a first driving resistor and a second driving resistor which are connected in series and grounded;
the first driving resistor is connected with the output end of the comparator;
the connecting node of the first driving resistor and the second driving resistor is connected with the base electrode of a first driving triode, the emitting electrode of the first driving triode is connected with a third driving resistor in series and grounded, and the collector electrode of the first driving triode is respectively connected with the electromagnetic valve and the peristaltic pump;
the electromagnetic valve and the peristaltic pump are arranged in parallel, and the electromagnetic valve and the peristaltic pump are respectively provided with a first protection resistor and a second protection resistor in series;
the connection node of the collector of the driving triode and the first protection resistor is connected with the second protection resistor;
the second driving resistor is a variable resistor.
5. The monitoring and control transmission system of peak shaving transmission of natural gas according to claim 4, further comprising:
the electromagnetic valve is connected with a power supply through a first normally closed contact switch;
the peristaltic pump is connected with a power supply through a second normally closed contact switch;
the first normally closed contact switch and the second normally closed contact switch are controlled by the first electromagnetic coil and the second electromagnetic coil to be opened and closed respectively.
6. The monitoring control transmission system for the peak shaving transmission of natural gas according to claim 5, further comprising a gas cut-off control circuit, wherein the gas cut-off control circuit comprises a second pressure sensor, the second pressure sensor is arranged in the gas supply main body and is connected with a positive input end of the comparator, and the first pressure sensor is connected with a negative input end of the comparator;
the output end of the comparator is connected with the second driving device.
7. The monitoring and control transmission system of peak shaving transmission of natural gas according to claim 6,
the second driving device comprises a fourth driving resistor and a fifth driving resistor which are connected in series and grounded;
the fourth driving resistor is connected with the output end of the comparator and the fifth driving resistor in series and is grounded;
a connecting node of the fourth driving resistor and the fifth driving resistor is connected with a base electrode of a second driving triode, an emitting electrode of the second driving triode is connected with a sixth driving resistor in series and is grounded, and a collector electrode of the second driving triode is connected with a first electromagnetic coil;
the first electromagnetic coil and the second electromagnetic coil are arranged in parallel, and are respectively provided with a corresponding third protective resistor and a corresponding fourth protective resistor in series;
the connection node of the collector of the second driving triode and the second protection resistor is connected with the third protection resistor;
the fifth driving resistor is a variable resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222347528.9U CN218032661U (en) | 2022-09-05 | 2022-09-05 | Monitoring control transmission system for natural gas peak regulation transmission |
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| CN202222347528.9U CN218032661U (en) | 2022-09-05 | 2022-09-05 | Monitoring control transmission system for natural gas peak regulation transmission |
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| CN218032661U true CN218032661U (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115936449A (en) * | 2023-03-09 | 2023-04-07 | 成都秦川物联网科技股份有限公司 | Emergency handling method and Internet of things system based on intelligent gas call center |
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2022
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115936449A (en) * | 2023-03-09 | 2023-04-07 | 成都秦川物联网科技股份有限公司 | Emergency handling method and Internet of things system based on intelligent gas call center |
| CN115936449B (en) * | 2023-03-09 | 2023-05-05 | 成都秦川物联网科技股份有限公司 | Emergency processing method based on intelligent gas call center and Internet of things system |
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