CN212252101U - Natural gas pressure regulating system - Google Patents
Natural gas pressure regulating system Download PDFInfo
- Publication number
- CN212252101U CN212252101U CN202020722820.2U CN202020722820U CN212252101U CN 212252101 U CN212252101 U CN 212252101U CN 202020722820 U CN202020722820 U CN 202020722820U CN 212252101 U CN212252101 U CN 212252101U
- Authority
- CN
- China
- Prior art keywords
- pressure regulating
- monitoring
- regulator
- pressure
- natural gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a natural gas pressure regulating system, which comprises a pressure regulating and metering pry, wherein an upstream gas pipeline is connected with an input end of the pressure regulating and metering pry, a downstream gas pipeline is connected with an output end of the pressure regulating and metering pry, and the pressure regulating and metering pry comprises a main path and a standby path; the main circuit and the standby circuit are sequentially provided with a filter, a flowmeter, a monitoring pressure regulator, a working pressure regulator and an overpressure stop valve, and the normally open set pressure of the monitoring pressure regulator is higher than that of the working pressure regulator in a normal state; the working voltage regulator and the monitoring voltage regulator are respectively provided with a communicator and a first remote controller; a second remote controller is arranged in the overpressure stop valve; and a data acquisition and monitoring control system is also arranged. Through the utility model discloses realize ability automatic monitoring control to natural gas pressure regulating system that stability is good.
Description
Technical Field
The utility model relates to a natural gas carries the field, concretely relates to natural gas pressure regulating system.
Background
After the natural gas is mined out, the pressure of a gas system needs to be regulated and stabilized through multi-step treatment such as filtering, pressure regulation, odorization and the like, the flow and the flow speed of the gas are limited in a rated fluctuation range, the safety of a gas transmission system is ensured, the gas is supplied to downstream users through gas transmission pipelines, and the instantaneous flow and accumulated flow information of the downstream users are accurately recorded by utilizing a pressure regulation metering pry. The pressure regulating and metering pry generally adopts a dual-way pressure regulating system of a main way and a standby way, the existing pressure regulating and metering pry is highly dependent on the action of people, and an overpressure stop valve needs to be manually restored on site after overpressure occurs. Meanwhile, the main path and the standby path are both provided with only one pressure regulator, and due to the fact that the loss speed of the pressure regulating and metering pry is high, the requirement on air supply stability is high, and the emergency guarantee capability of the single pressure regulator of the single flow path under the scene is insufficient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a natural gas pressure regulating system, making its realization ability automatic monitoring control to natural gas pressure regulating system that stability is good.
In order to achieve the above object, the utility model provides a following technical scheme:
a natural gas pressure regulating system comprises a pressure regulating and metering pry, wherein an upstream gas pipeline is connected with an input end of the pressure regulating and metering pry, a downstream gas pipeline is connected with an output end of the pressure regulating and metering pry, and the pressure regulating and metering pry comprises a main path and a standby path; the main circuit and the standby circuit are sequentially provided with a filter, a flowmeter, a monitoring pressure regulator, a working pressure regulator and an overpressure stop valve, and the normally open set pressure of the monitoring pressure regulator is higher than that of the working pressure regulator in a normal state; the working voltage regulator and the monitoring voltage regulator are respectively provided with a communicator and a first remote controller; a second remote controller is arranged in the overpressure stop valve; the data acquisition and monitoring control system is further arranged, the communicator is in signal connection with the data acquisition and monitoring control system, and the data acquisition and monitoring control system is electrically connected with the first remote controller and the second remote controller.
Further, the flowmeter is an ultrasonic flowmeter. So set up, ultrasonic flowmeter reliable quality, stability is good.
Furthermore, an alarm system is further arranged and electrically connected with the data acquisition and monitoring control system. According to the arrangement, the alarm system can timely inform the staff of the master control console so that the staff can timely handle the information.
Further, the alarm system comprises a buzzer and a flashing lamp. So set up, buzzer and flashing light warning effect are good.
Furthermore, a main valve is arranged on the downstream gas pipeline, and the data acquisition and monitoring control system is electrically connected with the main valve. So set up, when the superpressure trip valve became invalid because of the trouble, data acquisition and monitoring control system can mend the instruction and control and close the main valve on the low reaches gas pipeline. And the guarantee degree is improved.
Compared with the prior art, the beneficial effects of the utility model are that:
the monitoring voltage regulators are newly added in the main circuit and the standby circuit, and the normally open setting pressure of the monitoring voltage regulator is higher than that of the working voltage regulator in a normal state. The monitoring voltage regulator is a voltage regulator playing a monitoring role, and the working voltage regulator is a voltage regulator playing a normal working role. Therefore, when the working pressure regulator fails, the monitoring pressure regulator is immediately involved and switched from a fully open state to a pressure regulating state, and the instantaneous starting and cutting-off of the overpressure cut-off valve are avoided. When the abnormity of the working pressure regulator is eliminated, the states of the working pressure regulator and the monitoring pressure regulator can be automatically recovered through the first remote controller. The quadruple guarantee of two paths of pressure regulation is realized after the monitoring pressure regulator is additionally arranged, the fault tolerance rate of a single pressure regulator is effectively improved, and the action probability of an overpressure cut-off valve is reduced.
Meanwhile, a data acquisition and monitoring control system is additionally arranged, a worker remotely utilizes the data acquisition and monitoring control system to acquire working condition data of the working pressure regulator and the monitoring pressure regulator through a communicator, and then the first remote controller carries out feedback control on the working pressure regulator and the monitoring pressure regulator to a set value; when the collected pressure value is abnormal or the overpressure cut-off valve is triggered to act to close the valve, the data collection and monitoring control system triggers an alarm, the worker issues an instruction through the data collection and monitoring control system, and the valve closing of the overpressure cut-off valve is achieved through the second remote controller. After the abnormity is eliminated, the second remote controller realizes the reset of the overpressure stop valve, and the pressure regulating instruction is issued again to recover the field operation. The full automation of the field operation is realized; secondly, the movement is accurate, and the repeated movement process is reduced; the remote management of the equipment is realized, and the beneficial effect of reducing the operation risk of personnel is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the pressure regulating metering sled of the present invention;
FIG. 2 is a schematic diagram of the data acquisition and monitoring control system of the present invention;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, only some embodiments, not all embodiments, of the present invention are described. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b):
a natural gas pressure regulating system comprises a pressure regulating and metering pry, wherein an upstream gas pipeline is connected with an input end of the pressure regulating and metering pry, a downstream gas pipeline is connected with an output end of the pressure regulating and metering pry, and the pressure regulating and metering pry comprises a main path and a standby path; the main circuit and the standby circuit are sequentially provided with a filter, a flowmeter, a monitoring pressure regulator, a working pressure regulator and an overpressure stop valve, and the normally open set pressure of the monitoring pressure regulator is higher than that of the working pressure regulator in a normal state; the working voltage regulator and the monitoring voltage regulator are respectively provided with a communicator and a first remote controller; a second remote controller is arranged in the overpressure stop valve; the data acquisition and monitoring control system is further arranged, the communicator is in signal connection with the data acquisition and monitoring control system, and the data acquisition and monitoring control system is electrically connected with the first remote controller and the second remote controller.
Further, the flowmeter is an ultrasonic flowmeter. So set up, ultrasonic flowmeter reliable quality, stability is good.
Furthermore, an alarm system is further arranged and electrically connected with the data acquisition and monitoring control system. According to the arrangement, the alarm system can timely inform the staff of the master control console so that the staff can timely handle the information.
Further, the alarm system comprises a buzzer and a flashing lamp. So set up, buzzer and flashing light warning effect are good.
Furthermore, a main valve is arranged on the downstream gas pipeline, and the data acquisition and monitoring control system is electrically connected with the main valve. So set up, when the superpressure trip valve became invalid because of the trouble, data acquisition and monitoring control system can mend the instruction and control and close the main valve on the low reaches gas pipeline. And the guarantee degree is improved.
The working principle of the embodiment is as follows:
the monitoring voltage regulators are newly added in the main circuit and the standby circuit, and the normally open setting pressure of the monitoring voltage regulator is higher than that of the working voltage regulator in a normal state. The monitoring voltage regulator is a voltage regulator playing a monitoring role, and the working voltage regulator is a voltage regulator playing a normal working role. Therefore, when the working pressure regulator fails, the monitoring pressure regulator is immediately involved and is switched from a fully open state to a pressure regulating state, and the immediate cut-off work of the overpressure cut-off valve is avoided. When the abnormity of the working pressure regulator is eliminated, the states of the working pressure regulator and the monitoring pressure regulator can be automatically recovered through the first remote controller. The quadruple guarantee of two paths of pressure regulation is realized after the monitoring pressure regulator is additionally arranged, the fault tolerance rate of a single pressure regulator is effectively improved, and the action probability of an overpressure cut-off valve is reduced.
Meanwhile, a data acquisition and monitoring control system is additionally arranged, a worker remotely utilizes the data acquisition and monitoring control system to acquire working condition data of the working pressure regulator and the monitoring pressure regulator through a communicator, and then the first remote controller carries out feedback control on the working pressure regulator and the monitoring pressure regulator to a set value; when the collected pressure value is abnormal or the overpressure cut-off valve is triggered to act to close the valve, the data collection and monitoring control system triggers an alarm, the worker issues an instruction through the data collection and monitoring control system, and the valve closing of the overpressure cut-off valve is achieved through the second remote controller. After the abnormity is eliminated, the second remote controller realizes the reset of the overpressure stop valve, and the pressure regulating instruction is issued again to recover the field operation. The full automation of the field operation is realized; secondly, the movement is accurate, and the repeated movement process is reduced; the remote management of the equipment is realized, and the beneficial effect of reducing the operation risk of personnel is achieved.
Claims (5)
1. A natural gas pressure regulating system comprises a pressure regulating and metering pry, wherein an upstream gas pipeline is connected with an input end of the pressure regulating and metering pry, a downstream gas pipeline is connected with an output end of the pressure regulating and metering pry, and the pressure regulating and metering pry comprises a main path and a standby path; the method is characterized in that: the main circuit and the standby circuit are sequentially provided with a filter, a flowmeter, a monitoring pressure regulator, a working pressure regulator and an overpressure stop valve, and the normally open set pressure of the monitoring pressure regulator is higher than that of the working pressure regulator in a normal state; the working voltage regulator and the monitoring voltage regulator are respectively provided with a communicator and a first remote controller; a second remote controller is arranged in the overpressure stop valve; the data acquisition and monitoring control system is further arranged, the communicator is in signal connection with the data acquisition and monitoring control system, and the data acquisition and monitoring control system is electrically connected with the first remote controller and the second remote controller.
2. The natural gas pressure regulating system of claim 1, wherein: the flowmeter is an ultrasonic flowmeter.
3. The natural gas pressure regulating system of claim 1, wherein: and the alarm system is electrically connected with the data acquisition and monitoring control system.
4. The natural gas pressure regulating system of claim 3, wherein: the alarm system comprises a buzzer and a flashing lamp.
5. The natural gas pressure regulating system of claim 1, wherein: and a main valve is arranged on the downstream gas pipeline, and the data acquisition and monitoring control system is electrically connected with the main valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020722820.2U CN212252101U (en) | 2020-05-06 | 2020-05-06 | Natural gas pressure regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020722820.2U CN212252101U (en) | 2020-05-06 | 2020-05-06 | Natural gas pressure regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212252101U true CN212252101U (en) | 2020-12-29 |
Family
ID=73998561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020722820.2U Active CN212252101U (en) | 2020-05-06 | 2020-05-06 | Natural gas pressure regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212252101U (en) |
-
2020
- 2020-05-06 CN CN202020722820.2U patent/CN212252101U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212252101U (en) | Natural gas pressure regulating system | |
| CN111007835A (en) | Control device and control method for faults of main sensor of speed regulator | |
| CN208222083U (en) | Natural gas two stage pressure regulator | |
| CN211245652U (en) | Automatic control device of thickener | |
| CN110888410A (en) | DCS logic control system | |
| CN101787969B (en) | Numerical control system of minimum flow valve of governing feedwater pump and minimum flow control method thereof | |
| CN210954731U (en) | Controller for main sensor fault of speed regulator | |
| CN107562011A (en) | A kind of cast tube production line security protection control system and its control method | |
| CN207380529U (en) | A kind of cast tube production line security protection control system | |
| CN210604808U (en) | Sodium ion concentration meter output current simulation device | |
| CN109442214B (en) | Gas transmission method for natural gas station | |
| CN203322439U (en) | Quick cutting-off control device of electrically operated valve | |
| CN212031958U (en) | Automatic valve control system with reset protection | |
| CN211349067U (en) | Special override controller for natural gas distribution station door station | |
| CN214890512U (en) | Remote cut-off system of gas pressure regulating equipment and gas pressure regulating cabinet | |
| CN118088367B (en) | Method and device for protecting and alarming interruption of main shaft working sealing water of hydroelectric generating set | |
| CN205583650U (en) | Differential protective system is opened by photovoltaic power plant transformer | |
| CN220020129U (en) | Multifunctional intelligent controller for power plant | |
| CN217606283U (en) | Natural gas spray gun cooling control system for glass production | |
| CN113007155B (en) | Automatic air supplementing system of hydraulic control system of water turbine governor and control method thereof | |
| CN219140511U (en) | Instrument gas low pressure interlocking control device for long-chain dibasic acid production | |
| CN211320914U (en) | Reverse power protection device | |
| CN220891886U (en) | Water supply pipeline with pressure relief function | |
| CN218653843U (en) | Absorption tower densimeter entry flow control optimization device | |
| CN112107975A (en) | Desulfurization system regeneration air compression automatic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |