CN213420649U - Natural gas transmission and distribution pressure regulating metering station - Google Patents
Natural gas transmission and distribution pressure regulating metering station Download PDFInfo
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- CN213420649U CN213420649U CN202022575847.6U CN202022575847U CN213420649U CN 213420649 U CN213420649 U CN 213420649U CN 202022575847 U CN202022575847 U CN 202022575847U CN 213420649 U CN213420649 U CN 213420649U
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Abstract
The utility model provides a natural gas transmission and distribution pressure regulating metering station, which relates to the technical field of natural gas pipeline conveying equipment, and comprises a transmission and distribution pipeline, a plurality of field execution elements arranged on the transmission and distribution pipeline, a safety early warning element arranged in the metering station, a station-entering safety protection control system integrated in an intelligent master control system, a remote safety control system, a metering data acquisition system, an automatic flow regulation control system, an intelligent pressure regulating control system and an automatic route selection control system, wherein the systems are in signal connection with each other, can independently operate and simultaneously exchange data with the intelligent master control system, can call and cooperate to control data according to control logic, improve the safety level configuration of the metering station, realize the automatic management of the distribution and distribution of the metering station and the peak regulation of gas consumption, and simultaneously realize the control of the gas consumption exceeding the limit, perfect intelligent and safe system control is formed.
Description
Technical Field
The utility model belongs to the technical field of natural gas line conveying equipment technique and specifically relates to an intelligent natural gas transmission and distribution pressure regulating measurement station.
Background
In a natural gas transmission and distribution system, the most core process part is a pressure regulating and metering process, and natural gas is generally received and distributed in transmission and distribution receiving links of main and branch lines such as national level, provincial level and the like by adopting a pressure regulating and metering station. However, with the increasingly wide application of domestic natural gas transmission and distribution, the gas consumption is increasingly large, the gas consumption working condition is increasingly complex, and the conventional pressure regulating metering station process cannot meet the requirements, wherein the most prominent problems include: (1) the configuration of safety control is low, the estimation on unknown hidden dangers is insufficient, and the later-stage reconstruction cost is high; (2) the distribution and allocation can not realize convenient automatic management; (3) convenient automatic management cannot be realized by using gas peak regulation; (4) lack of control measures for the overrun of the downstream gas consumption, insufficient prediction of future gas consumption, small utilization rate in the early stage and insufficient supply in the later stage, and the pressure regulating equipment cannot work normally under the condition that the peak gas consumption and the valley gas consumption have great difference; (5) the faults of the process equipment can not be diagnosed on line, and the labor consumption of maintenance work is large. In order to solve the problems, the conventional pressure regulating metering station cannot systematically and perfectly solve the problems, and the problems are found by troubleshooting only after the problems occur in the using process and are solved by a method, so that the equipment modification cost and the manual maintenance cost of an operation unit are increased, and the working smoothness and the transmission and distribution efficiency of a natural gas transmission and distribution system are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a natural gas transmission and distribution pressure regulating measurement station through reasonable system architecture design, improves the security level configuration of pressure regulating measurement station to reduce the later stage and reform transform the cost, realize simultaneously that the measurement station divides the automatic management of defeated allotment.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a natural gas transmission and distribution pressure regulating metering station, include the transmission and distribution pipeline, set up in a plurality of on-the-spot executive component on the transmission and distribution pipeline and set up in the safety precaution component in the metering station, its characterized in that still includes:
the station entering safety protection control system comprises an ESD emergency cut-off valve arranged on a transmission and distribution pipeline at the station entering position of the metering station, and the ESD emergency cut-off valve is connected with a safety early warning element in the metering station;
the remote safety control system comprises a pressure testing component and a cut-off valve with a remote control function, wherein the pressure testing component and the cut-off valve are arranged on the transmission and distribution pipeline with the rear end of the metering station subjected to pressure regulation;
the metering data acquisition system comprises a metering instrument which is arranged on the transmission and distribution pipeline after pressure regulation at the station entering position of the metering station;
the automatic flow regulating control system comprises a flow regulating valve arranged on a transmission and distribution pipeline at the outlet of the metering station;
the intelligent master control system is in signal connection with the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system;
the intelligent general control system comprises an inbound safety protection control system, a remote safety control system, a metering data acquisition system and an automatic flow regulation control system, wherein the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system are integrated in the intelligent general control system, and the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system are in signal connection with one another.
In one embodiment of the present disclosure, the field-effect element includes a valve and an insulated joint.
The utility model discloses an embodiment, safety precaution component includes pressure test subassembly, temperature test subassembly, leakage alarm ware, fire detector.
The utility model discloses an embodiment, the safety protection control system that enters station still includes the urgent valves that diffuses of BDV, the urgent valves that diffuses of BDV with the pressure test subassembly is connected, in case take place the superpressure, then carries out the pressure release protection automatically.
In an embodiment of the present disclosure, the remote security control system is further connected to a security early warning element in the metering station.
The utility model discloses an embodiment, measurement data acquisition system still includes data report module and big data analysis module.
The utility model discloses an embodiment, the metering station still include with intelligent total control system signal connection's intelligent voltage regulation control system, it including set up in control voltage regulator and work voltage regulator on the transmission and distribution pipeline. Under normal conditions, the monitoring pressure regulator is in an open state, the working pressure regulator performs normal pressure regulation, and when the working pressure regulator is directly connected due to faults, the monitoring pressure regulator automatically switches to a working state so as to prolong the online working time.
The utility model discloses an embodiment, intelligent pressure regulating control system still includes long-range pressure regulating unit, can according to the automatic long-range pressure regulation that carries out of intelligence total control system instruction.
The utility model discloses an embodiment, intelligent pressure regulating control system still with measurement data acquisition system signal connection.
In an embodiment of the utility model, in order to solve the problem that the existing pressure regulating metering station lacks the control measure for the over-limit of the downstream gas consumption, the utilization rate in the early stage is small and the later-stage supply is not enough due to the insufficient estimation of the future gas consumption, and even the pressure regulating equipment can not work normally under the condition that the peak gas consumption and the valley gas consumption have great difference, an automatic routing control system is also arranged in the natural gas transmission and distribution pressure regulating metering station, the automatic routing control system comprises two branches which are connected with the transmission and distribution pipeline after pressure regulation at the station entering position of the metering station, the branches are at least two branches with different gas supply scales, and each branch is provided with an electric cut-off valve; the automatic routing control system is in signal connection with the metering data acquisition system and the intelligent master control system.
The utility model discloses an embodiment, automatic route selection control system includes two branches, and a branch is the pipeline of the near term little flow of adaptation, and another is the pipeline of the long term large-traffic of adaptation.
In another embodiment of the present disclosure, the automatic routing control system further includes a third branch, and the third branch is an extra-long expansion standby pipeline.
The utility model discloses an in the embodiment, each all be equipped with gas clarification plant behind the electronic trip valve of branch road.
The utility model discloses an embodiment, intelligence pressure regulating control system and automatic route selection control system all integrate in the intelligence total control system, just signal connection each other between safety protection control system, remote safety control system, measurement data acquisition system, the automatic flow control system that transfers, intelligent pressure regulating control system and the automatic route selection control system of entering the station.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1. the utility model discloses a natural gas transmission & distribution pressure regulating measurement station, the safety protection control system and the remote safety control system of entering have been designed, the safety protection mode of the interior overall process of station based on duplicate protection mechanism has been formed, the security level configuration of pressure regulating measurement station has been improved, and the safety protection control system of just entering and remote safety control system all integrate in intelligent total control system, can realize the quick response of safety protection measure when taking place the potential safety hazard, with the safety of gas safety for assurance station yard safety and low reaches, the fault point of while can also be fast on-line investigation process equipment, alleviate maintenance work human consumption, reduce the later stage and reform transform the cost.
2. The utility model discloses a natural gas transmission and distribution pressure regulating measurement station has designed measurement data acquisition system and automatic flow control system that transfers, and automatic flow control system that transfers can carry out the air supply volume to each pipeline of leaving a station and predetermine, carries out automatic flow control to each pipeline of leaving a station according to measurement data acquisition system's real-time air feed measurement value, carries out the automatic distribution management with tolerance, has solved the problem that traditional art can't carry out rational planning and management to the tolerance of low reaches.
3. The utility model discloses a natural gas transmission & distribution pressure regulating measurement station has designed intelligent pressure regulating control system, has configured control voltage regulator and work voltage regulator, and under the normal condition, control voltage regulator is open state, and the work voltage regulator is normal pressure adjustment, and when the work voltage regulator leads directly because of the trouble, control voltage regulator will automatic switch to operating condition to prolong online operating time; and the monitoring pressure regulator and the working pressure regulator are simultaneously provided with remote pressure regulating units, remote pressure regulation can be automatically carried out according to system instructions, particularly, when peak regulation is required, the system can automatically carry out automatic pressure boosting or pressure reduction control according to flow data of the metering data acquisition system, automatic management of gas peak regulation is realized, and the problem that pressure boosting or pressure reduction needs to be carried out manually on site in the traditional technology is solved.
4. The utility model discloses a natural gas transmission and distribution pressure regulating measurement station has designed automatic route selection control system, and this system adopts the overall arrangement of many branches, and the air feed scale of each branch road is different, and during the operation, according to measurement data acquisition system's real-time measurement data, the adaptation circuit that accords with current operation requirement is selected according to the gas demand automatically, carries out the circuit automatically and switches over to other circuits are turn-offed automatically. The design of many branches has realized the management and control measure to low reaches gas consumption transfinite, has solved the problem that current regulation and maintenance metering station can't carry out the air feed through fixed equipment and match under the circumstances that there is huge difference at peak gas consumption and low ebb gas consumption.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a system diagram of the pressure regulating metering station of the utility model.
Fig. 2 is an enlarged view of the system of part a of fig. 1.
Fig. 3 is an enlarged view of the system of part B of fig. 1.
Fig. 4 is an enlarged view of the system of fig. 1, section C.
Fig. 5 is an enlarged view of the system at section D in fig. 1.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
The utility model provides a natural gas transmission and distribution pressure regulating measurement station through reasonable system architecture design, improves the security level configuration of pressure regulating measurement station to reduce the later stage and reform transform the cost, realize simultaneously that the measurement station divides the automatic management of defeated allotment. Specifically, as shown in fig. 1, the natural gas transmission and distribution pressure regulating metering station includes a transmission and distribution pipeline, a plurality of field execution elements arranged on the transmission and distribution pipeline, and a safety early warning element arranged in the metering station; in this embodiment, the field execution element includes a valve, an insulating joint and the like, and the safety early warning element includes a pressure testing component, a temperature testing component, a leakage alarm, a fire detector and the like, wherein the pressure testing component includes a pressure tester and a pressure transmitter, and the temperature testing component includes a temperature tester and a temperature transmitter; the natural gas transmission and distribution pressure regulating metering station further comprises an incoming station safety protection control system, a remote safety control system, a metering data acquisition system and an automatic flow regulating control which are integrated in the intelligent master control system, the incoming station safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulating control system are in mutual signal connection, the systems can operate independently, and simultaneously perform data exchange with the intelligent master control system, and can perform data calling and coordination control according to control logic, so that perfect intelligent and safety system control is realized.
The inbound safety protection control system comprises an ESD emergency cut-off valve arranged on a transmission and distribution pipeline at the inbound position of the metering station, and the ESD emergency cut-off valve is connected with a safety early warning element in the metering station; once the safety early warning element is triggered, the ESD emergency cut-off valve is quickly turned off to ensure the safety of a station; in this embodiment, the inbound safety protection control system further includes a BDV emergency relief valve group, and the BDV emergency relief valve group is connected with the pressure test component, and once overpressure occurs, pressure relief protection is automatically performed. As shown in figure 1, a main pipe emptying assembly is connected in series on the BDV emergency relief valve, so that pipeline emptying and pressure relief can be rapidly carried out.
The remote safety control system comprises a pressure testing assembly and a cut-off valve with a remote control function, wherein the pressure testing assembly and the cut-off valve are arranged on the transmission and distribution pipeline with the rear end of the metering station subjected to pressure regulation; in this embodiment, the remote security control system is further connected to a security early warning element in the metering station. This part is pressure regulating measurement station safety protection's core part, mainly to the safety protection of all pipelines, equipment and instruments behind the pressure regulating, adopts the trip valve of taking remote control function, and the accessible monitors the pressure value behind the pressure regulating, in case take place superpressure or when undervoltage etc. can cause the condition of low reaches gas consumption risk, promptly through trip valve self-closing pressure regulating pipeline in order to guarantee the safety of low reaches. Meanwhile, the safety early warning device is in signal linkage with the safety early warning element, once triggered, the safety early warning device can instantly judge and take safety measures to protect the downstream safety, and the safety level of the pressure regulating metering station is improved.
The metering data acquisition system comprises a metering instrument which is arranged on a transmission and distribution pipeline after pressure regulation at the station entering position of the metering station; the part collects real-time data of the metering instrument and is used as a data basis source for the operation of the metering station; in this embodiment, besides data acquisition, the measurement data acquisition system further includes a data report module and a big data analysis module, which can perform data analysis for a long time, provide precious data information for an operation unit, and use the data information as basic data of the natural gas internet of things.
The automatic flow regulation control system comprises a flow regulation valve arranged on a transmission and distribution pipeline at the outlet of the metering station, is designed for flow protection control of the transmission and distribution outlet pipeline, and is suitable for all distribution and transmission pipelines which are likely to generate excessive gas and influence gas distribution of an operation unit; the system can preset the air supply amount of each outbound pipeline, automatically adjusts the flow of each outbound pipeline according to the real-time air supply metering value of the metering data acquisition system, automatically distributes and manages the air consumption amount, and solves the problem that the downstream air consumption amount cannot be reasonably planned and managed in the prior art.
Example two
Aiming at the problems that the existing pressure regulating and metering station needs to be manually boosted or depressurized on site during peak regulation by gas utilization and convenient automatic management cannot be realized, the second embodiment is that on the basis of the first embodiment, an intelligent pressure regulating control system which is in signal connection with the intelligent master control system and the metering data acquisition system is additionally arranged on the natural gas transmission and distribution pressure regulating and metering station, a monitoring pressure regulator and a working pressure regulator are configured, the monitoring pressure regulator is in an open state under normal conditions, the working pressure regulator is used for normal pressure regulation, and when the working pressure regulator is directly connected due to faults, the monitoring pressure regulator is automatically switched to a working state so as to prolong the online working time; and the monitoring pressure regulator and the working pressure regulator are simultaneously provided with remote pressure regulating units, remote pressure regulation can be automatically carried out according to system instructions, particularly when peak regulation is required, the system can automatically carry out automatic pressure rising or pressure reduction control according to flow data of the metering data acquisition system, automatic management of gas peak regulation is realized, and inconvenience and low efficiency of manual on-site peak regulation in the traditional technology are solved.
EXAMPLE III
In order to solve the problems that the prior pressure regulating metering station lacks a control measure for the over-limit of the downstream gas consumption, the utilization rate in the early stage is low and the later-stage supply is insufficient due to insufficient prediction of the future gas consumption, and even the pressure regulating equipment cannot normally work under the condition that the peak gas consumption and the valley gas consumption have great difference, an automatic routing control system is additionally arranged in the natural gas transmission and distribution pressure regulating metering station in the third embodiment on the basis of the first embodiment, the second embodiment or the combination of the first embodiment and the second embodiment, the system adopts a multi-branch layout and comprises branches which are connected with transmission and distribution pipelines after pressure regulation at the station entering position of the metering station in parallel, the gas supply scales of the branches are different, and electric shut-off valves are arranged on the branches; in this embodiment, as shown in fig. 1, the automatic routing control system includes three branches, one branch is a pipeline adapted to short-term small flow, the other branch is a pipeline adapted to long-term large flow, and the third branch is an extra-long-term expansion standby pipeline. During operation, according to the real-time metering data of the metering data acquisition system, the adaptive line meeting the current use requirement is automatically selected according to the gas use requirement, the line switching is automatically carried out, and other lines are automatically switched off. In this embodiment, each branch is also provided with a flow meter, and when the line is automatically switched, the flow meter is also automatically switched to the operation line selected by the system.
Preferably, in this embodiment, a gas purification device is provided after the electric shut-off valve of each branch.
It should be noted that, in the above embodiment, the inbound security protection control system, the remote security control system, the metering data acquisition system, the automatic flow regulation control system, the intelligent pressure regulation control system, and the automatic routing control system may be in signal connection with each other, each subsystem may operate independently, and perform data exchange with the intelligent master control system, and may perform data call and cooperative control according to the control logic, thereby implementing perfect intelligent and security system control.
In the description of the present invention, it should be understood that the terms "upper" and "rear" and the like refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that the person skilled in the art conventionally understands, and the description is only for convenience of description of the present invention and simplification, but does not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the present invention.
Furthermore, the term "plurality" is used for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "a number" may explicitly or implicitly include one or more of that feature.
Meanwhile, each system, element and the like in the present invention has a corresponding electric energy device to supply kinetic energy, the connection mode and the electric energy supply mode of each device are the known technologies in the field, and the electrical relationship related to each system is also the common general knowledge in the field, and the present invention is not limited or explained in detail.
Meanwhile, in the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" should be broadly construed, for example, as being fixedly connected, detachably connected, or integrated; the two elements may be connected directly or indirectly through an intermediate medium, or may be connected through an internal connection or an interaction relationship between the two elements, unless otherwise specifically limited, and a person skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a natural gas transmission and distribution pressure regulating metering station, include the transmission and distribution pipeline, set up in a plurality of on-the-spot executive component on the transmission and distribution pipeline and set up in the safety precaution component in the metering station, its characterized in that still includes:
the station entering safety protection control system comprises an ESD emergency cut-off valve arranged on a transmission and distribution pipeline at the station entering position of the metering station, and the ESD emergency cut-off valve is connected with a safety early warning element in the metering station;
the remote safety control system comprises a pressure testing component and a cut-off valve with a remote control function, wherein the pressure testing component and the cut-off valve are arranged on the transmission and distribution pipeline with the rear end of the metering station subjected to pressure regulation;
the metering data acquisition system comprises a metering instrument which is arranged on the transmission and distribution pipeline after pressure regulation at the station entering position of the metering station;
the automatic flow regulating control system comprises a flow regulating valve arranged on a transmission and distribution pipeline at the outlet of the metering station;
the intelligent master control system is in signal connection with the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system;
the intelligent general control system comprises an inbound safety protection control system, a remote safety control system, a metering data acquisition system and an automatic flow regulation control system, wherein the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system are integrated in the intelligent general control system, and the inbound safety protection control system, the remote safety control system, the metering data acquisition system and the automatic flow regulation control system are in signal connection with one another.
2. The natural gas transmission and distribution pressure regulating and metering station of claim 1, wherein the safety early warning element comprises a pressure testing component, a temperature testing component, a leakage alarm and a fire detector.
3. The natural gas transmission and distribution pressure regulating and metering station of claim 2, wherein the inbound safety protection control system further comprises a BDV emergency bleeding valve set, and the BDV emergency bleeding valve set is connected with the pressure testing component.
4. The natural gas transmission and distribution pressure regulating metering station of claim 1, wherein the remote safety control system is further connected with a safety early warning element in the metering station.
5. The natural gas transmission and distribution pressure regulating and metering station of claim 1, further comprising an intelligent pressure regulating control system in signal connection with the intelligent main control system, wherein the intelligent pressure regulating control system comprises a monitoring pressure regulator and a working pressure regulator which are arranged on the transmission and distribution pipeline.
6. The natural gas transmission and distribution pressure regulating metering station of claim 5, wherein the intelligent pressure regulating control system further comprises a remote pressure regulating unit which can automatically perform remote pressure regulation according to the instruction of the intelligent main control system.
7. The natural gas transmission and distribution pressure regulating and metering station as claimed in any one of claims 5 or 6, wherein the intelligent pressure regulating control system is further in signal connection with the metering data acquisition system.
8. The natural gas transmission and distribution pressure-regulating metering station of claim 1, wherein an automatic routing control system is further arranged in the metering station, and the automatic routing control system is a branch which is connected with a transmission and distribution pipeline subjected to pressure regulation at the station entering position of the metering station in parallel, the branch is at least two branches with different gas supply scales, and each branch is provided with an electric stop valve; the automatic routing control system is in signal connection with the metering data acquisition system and the intelligent master control system.
9. The natural gas transmission and distribution pressure regulating and metering station of claim 8, wherein the automatic routing control system comprises two branches, one branch is a pipeline adapted for short-term small flow, and the other branch is a pipeline adapted for long-term large flow.
10. The natural gas transmission and distribution pressure regulating and metering station of claim 9, wherein the automatic routing control system further comprises a third branch, and the third branch is a super-long expansion standby pipeline.
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| CN202022575847.6U CN213420649U (en) | 2020-11-10 | 2020-11-10 | Natural gas transmission and distribution pressure regulating metering station |
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| CN202022575847.6U CN213420649U (en) | 2020-11-10 | 2020-11-10 | Natural gas transmission and distribution pressure regulating metering station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944878A (en) * | 2021-11-04 | 2022-01-18 | 国家石油天然气管网集团有限公司 | Intelligent control method for natural gas distribution station |
| CN113944878B (en) * | 2021-11-04 | 2024-05-28 | 国家石油天然气管网集团有限公司 | Intelligent control method for natural gas separate-transmission station |
-
2020
- 2020-11-10 CN CN202022575847.6U patent/CN213420649U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944878A (en) * | 2021-11-04 | 2022-01-18 | 国家石油天然气管网集团有限公司 | Intelligent control method for natural gas distribution station |
| CN113944878B (en) * | 2021-11-04 | 2024-05-28 | 国家石油天然气管网集团有限公司 | Intelligent control method for natural gas separate-transmission station |
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