CN111271606A - Movable gas pressure regulating and metering pry - Google Patents
Movable gas pressure regulating and metering pry Download PDFInfo
- Publication number
- CN111271606A CN111271606A CN202010319737.5A CN202010319737A CN111271606A CN 111271606 A CN111271606 A CN 111271606A CN 202010319737 A CN202010319737 A CN 202010319737A CN 111271606 A CN111271606 A CN 111271606A
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- pressure
- valve
- downstream
- control
- regulating valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
A movable gas pressure regulating and metering pry is composed of a natural gas rectifier, a flowmeter, a safety cut-off valve, a monitoring pressure regulating valve and a working regulating valve which are connected in series from upstream to downstream; a temperature transmitter, a pressure gauge component and a thermometer component are arranged at the downstream of the flowmeter; a pressure gauge component is arranged at the downstream of the safety shut-off valve; designing a pressure gauge assembly at the downstream of the monitoring pressure regulating valve; a pressure gauge component, an air source distributor and a pressure transmitter are arranged at the downstream of the electric regulating valve; the air source distributor provides air source signals for the safety shut-off valve and the monitoring pressure regulating valve; the temperature transmitter and the pressure transmitter collect pressure and temperature signals and send the pressure and temperature signals to the station control system; the advantages are that: the integrated skid-mounted design and the modular construction facilitate the on-site installation and construction, and have the advantages of compact structure, small occupied area and convenient operation and maintenance; the device can be unattended, and only needs to be checked regularly; the expansibility is good, and functions can be added according to the requirements of users.
Description
Technical Field
The invention belongs to the field of metering prys, and particularly relates to a movable gas pressure regulating metering pry.
Background
The gas pressure regulating and metering device is a natural gas automatic control device integrating metering, pressure regulating, current limiting, safety cut-off, pressure display and automatic remote transmission control, and is widely applied to gas supply of devices such as a first station, a gate station, a branch transmission station, a regional pressure regulating station, other special users or civil users and the like of a long-distance transmission pipeline.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a movable gas pressure regulating and metering pry.
The technical scheme of the invention is as follows: a movable gas pressure regulating and metering pry comprises a natural gas rectifier, a flowmeter, a temperature transmitter, a pressure gauge component, a thermometer component, a safety cut-off valve, a monitoring and pressure regulating valve, an electric regulating valve, a gas source distributor and a pressure transmitter, wherein the gas pressure regulating and metering pry is formed by serially connecting the natural gas rectifier, the flowmeter, the safety cut-off valve, the monitoring and pressure regulating valve and a working regulating valve in sequence from upstream to downstream; a temperature transmitter, a pressure gauge component and a thermometer component are arranged at the downstream of the flowmeter; a pressure gauge component is arranged at the downstream of the safety shut-off valve; designing a pressure gauge assembly at the downstream of the monitoring pressure regulating valve; a pressure gauge component, an air source distributor and a pressure transmitter are arranged at the downstream of the electric regulating valve; the air source distributor provides air source signals for the safety shut-off valve and the monitoring pressure regulating valve; the temperature transmitter and the pressure transmitter collect pressure and temperature signals and send the pressure and temperature signals to the station control system.
The natural gas is introduced through a gas pipeline, stabilized through the natural gas, stabilized through a natural gas rectifier, metered through a flowmeter, regulated through an electric regulating valve and limited in current, and pressure, flow and temperature signals are collected and transmitted to a data collection system to realize remote control.
The safety cut-off valve and the monitoring pressure regulating valve are in full open positions under normal conditions, pressure control is carried out on downstream pressure by the electric regulating valve, signals of the flow control system are received by the pressure control system, when the air supply flow exceeds a set value, the electric regulating valve is switched to a flow control state, the station control system outputs control signals at the moment, the distribution flow is limited, when the electric regulating valve breaks down and exceeds a set pressure value, when the downstream pressure cannot be controlled, the monitoring pressure regulating valve starts to work, so that the safety range of the downstream pressure is maintained, if the monitoring pressure regulating valve also breaks down and exceeds the set pressure value, when the downstream pressure cannot be controlled, the air source is automatically cut off by the safety cut-off valve, and.
The pressure gauge component displays real-time pressure of natural gas.
The thermometer component displays the real-time temperature of the natural gas.
The invention has the beneficial effects that: the integrated skid-mounted design, the modular construction, convenient on-site installation and construction, compact structure, small occupied area and convenient operation and maintenance. Can be unattended, and only needs to be checked regularly. The expansibility is good, and functions can be added according to the requirements of users.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Figure 2 is a piping installation layout of the present invention.
In the figure: 1. the system comprises a natural gas rectifier, a flowmeter, a temperature transmitter, a pressure gauge component, a temperature gauge component, a safety cut-off valve, a monitoring pressure regulating valve, an electric regulating valve, an air source distributor, a pressure transmitter, a steel platform and an instrument power supply control box, wherein the natural gas rectifier comprises 2 parts of a flowmeter, 3 parts of a temperature transmitter, 4 parts of a pressure gauge component, 5 parts of a temperature gauge component, 6 parts of a safety cut-off valve, 7 parts of.
Detailed Description
In order to make the technical solution of the present invention more comprehensive, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
A movable gas pressure regulating and metering pry comprises a natural gas rectifier 1, a flowmeter 2, a temperature transmitter 3, a pressure gauge component 4, a thermometer component 5, a safety cut-off valve 6, a monitoring and pressure regulating valve 7, an electric regulating valve 8, a gas source distributor 9 and a pressure transmitter 10, wherein the gas pressure regulating and metering pry is formed by serially connecting the natural gas rectifier 1, the flowmeter 2, the safety cut-off valve 6, the monitoring and pressure regulating valve 7 and a working regulating valve 8 in sequence from upstream to downstream; a temperature transmitter 3, a pressure gauge component 4 and a thermometer component 5 are arranged at the downstream of the flowmeter 2; a pressure gauge component 4 is arranged at the downstream of the safety shut-off valve 6; a pressure gauge assembly 4 is arranged at the downstream of the monitoring pressure regulating valve 7; a pressure gauge component 4, an air source distributor 9 and a pressure transmitter 10 are arranged at the downstream of the electric regulating valve 8; the air source distributor 9 provides air source signals for the safety shut-off valve 6 and the monitoring pressure regulating valve 7; the temperature transmitter 3 and the pressure transmitter 10 collect pressure and temperature signals and send the pressure and temperature signals to the station control system.
Natural gas is introduced through a gas pipeline, the natural gas rectifier 1 carries out steady flow through natural gas pressure stabilization, the gas quantity is measured through the flow meter 2, the pressure regulation and the current limitation are carried out through the electric regulating valve 8, and pressure, flow and temperature signals are collected and transmitted to the data collection system to realize remote control.
Normally, the safety cut-off valve 6 and the monitoring pressure regulating valve 7 are in full open positions, the downstream pressure is subjected to pressure control by the electric regulating valve 8, when the pressure control system receives signals of the flow control system, when the air supply flow exceeds a set value, the electric regulating valve 8 is switched to the flow control state, the station control system outputs control signals at the moment, the distribution flow is limited, when the electric regulating valve 8 breaks down to exceed the set pressure value, the downstream pressure cannot be controlled, the monitoring pressure regulating valve 7 starts to work, the safety range of the downstream pressure is maintained, if the monitoring pressure regulating valve 7 also breaks down to exceed the set pressure value, when the downstream pressure cannot be controlled, the air source is automatically cut off by the safety cut-off valve 6, and the safety of a downstream.
The pressure gauge component 4 displays the real-time pressure of the natural gas.
The thermometer assembly 5 displays the real-time temperature of the natural gas.
The natural gas rectifier 1, the flowmeter 2, the valve, the instrument, the pipe fitting, the straight pipe section and the like are assembled and integrated on a steel platform 11 to be assembled, tested and debugged in a factory, and then transported to a production site to be installed.
The pressure control and data acquisition system is integrated into the instrument power control box 12, and uses the PLC and related modules to acquire signals such as pressure, temperature, light opening quantity signals and the like, and realizes the related control function through programming. Meanwhile, the field real-time monitoring is realized by utilizing a human-computer interface, and the data transmission and display are realized through a 485 bus.
Claims (5)
1. The utility model provides a portable gas pressure regulating measurement sled, includes natural gas rectifier (1), flowmeter (2), temperature transmitter (3), manometer subassembly (4), thermometer subassembly (5), safety cut-off valve (6), control air-vent valve (7), electrical control valve (8), air supply distributor (9), pressure transmitter (10), its characterized in that: the gas pressure regulating and metering pry is formed by serially connecting a natural gas rectifier (1), a flowmeter (2), a safety cut-off valve (6), a monitoring pressure regulating valve (7) and a working regulating valve (8) in sequence from upstream to downstream; a temperature transmitter (3), a pressure gauge component (4) and a thermometer component (5) are arranged at the downstream of the flowmeter (2); a pressure gauge component (4) is arranged at the downstream of the safety shut-off valve (6); a pressure gauge component (4) is arranged at the downstream of the monitoring pressure regulating valve (7); a pressure gauge component (4), an air source distributor (9) and a pressure transmitter (10) are arranged at the downstream of the electric regulating valve (8); the air source distributor (9) provides air source signals for the safety shut-off valve (6) and the monitoring pressure regulating valve (7); the temperature transmitter (3) and the pressure transmitter (10) collect pressure and temperature signals and send the pressure and temperature signals to the station control system.
2. The mobile gas pressure regulating and metering pry of claim 1, wherein: natural gas is introduced through a gas pipeline, is stabilized by the natural gas rectifier (1), is metered by the flowmeter (2), is regulated by the electric regulating valve (8) and is limited by the pressure and the flow, and the pressure, the flow and the temperature signals are collected and transmitted to the data collection system to realize remote control.
3. The mobile gas pressure regulating and metering pry of claim 1, wherein: under normal conditions safety shut-off valve (6) and control air-vent valve (7) are in full open position, carry out pressure control to downstream pressure by electric control valve (8), receive flow control system's signal when pressure control system, when air feed flow exceeded the setting value, electric control valve (8) switch to flow control state, the control signal is exported to the station control system this moment, limit the branch transmission flow, when electric control valve (8) break down and exceed the setting pressure value, when unable control downstream pressure, control air-vent valve (7) begin work, in order to maintain the safe range of downstream pressure, if control air-vent valve (7) also break down and exceed the setting pressure value, when unable control downstream pressure, then automatic cutout air supply is given to safety shut-off valve (6), in order to guarantee the safety of downstream pipeline and equipment.
4. The mobile gas pressure regulating and metering pry of claim 1, wherein: the pressure gauge component (4) displays the real-time pressure of the natural gas.
5. The mobile gas pressure regulating and metering pry of claim 1, wherein: the thermometer component (5) displays the real-time temperature of the natural gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319737.5A CN111271606A (en) | 2020-04-22 | 2020-04-22 | Movable gas pressure regulating and metering pry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319737.5A CN111271606A (en) | 2020-04-22 | 2020-04-22 | Movable gas pressure regulating and metering pry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271606A true CN111271606A (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010319737.5A Pending CN111271606A (en) | 2020-04-22 | 2020-04-22 | Movable gas pressure regulating and metering pry |
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| Country | Link |
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| CN (1) | CN111271606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998224A (en) * | 2020-09-15 | 2020-11-27 | 大庆市普罗石油科技有限公司 | Bidirectional separation metering device |
| CN114323164A (en) * | 2021-11-24 | 2022-04-12 | 北京市燃气集团有限责任公司 | Real-time online energy metering method and system for gas users |
-
2020
- 2020-04-22 CN CN202010319737.5A patent/CN111271606A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998224A (en) * | 2020-09-15 | 2020-11-27 | 大庆市普罗石油科技有限公司 | Bidirectional separation metering device |
| CN111998224B (en) * | 2020-09-15 | 2024-04-09 | 大庆市普罗石油科技有限公司 | Bidirectional separation metering device |
| CN114323164A (en) * | 2021-11-24 | 2022-04-12 | 北京市燃气集团有限责任公司 | Real-time online energy metering method and system for gas users |
| CN114323164B (en) * | 2021-11-24 | 2024-04-19 | 北京市燃气集团有限责任公司 | Real-time online energy metering method and system for gas users |
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