Bidirectional metering and connecting method for connecting pipe networks of different gas supply areas and system
A technology of pipeline network and communication, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems that the accuracy of the instrument cannot be guaranteed, and it is difficult to meet the lower limit value of the measuring instrument.
Active Publication Date: 2011-06-08
涿州滨海燃气有限公司
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Problems solved by technology
Therefore, it is difficult to meet the requirements of the lower limit value (that is, the minimum range) of the meter
Because, no matter what kind of measuring instrument, there is a low flow limit, below this flow, the accuracy of the instrument cannot be guaranteed
However, starting from the technical level of the meter itself, it is difficult to solve the above metering problems well.
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[0029] There are many towns under the jurisdiction of a certain city in Guangdong Province, and the towns are closely connected. Among them, the natural gas pipeline networks of the two adjacent towns (CA Town and HM Town) are not far apart near Huanan Avenue.
[0030] South China Avenue is not far from one of the natural gas supply points in CA Town, and is connected by a main road. Generally, the natural gas pressure is higher here. However, when the above-mentioned gas source supply point fails or is overhauled, the pressure here is low. As for the natural gas pipeline network of HM Town, South China Avenue is at the end of the natural gas pipeline network of HM Town. During the evening peak hours of every day, especially during the evening peak hours of holidays, the pressure here is seriously insufficient, which affects the gas consumption of users.
[0031] The two regional natural gas pipeline networks in CA Town and HM Town belong to different owners. Although the two ...
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The invention discloses a bidirectional metering and connecting system for connecting pipe networks of different gas supply areas. The system comprises a detection instrument A for metering gas pressure of a lateral pipeline of a pipe network A, a detection instrument B for metering gas pressure of a lateral pipeline of a pipe network B, a general connecting pipeline for connecting the pipe network A and the pipe network B, a measurement instrument channel when the pipe network A supplies gas to the pipe network B and a measurement instrument channel when the pipe network B supplies gas to the pipe network A, wherein a connecting valve is arranged on the general connecting pipe. The bidirectional metering and connecting system for connecting the pipe networks of different gas supply areascan solve the problems of bidirectional connection and bidirectional measurement among different pipe networks, the detection difficulty can be avoided under the condition of micrometeor or low flow,at the same time, the problem of accurate trade settlement and the balanced pressure spot of the pipe network can be solved, the invention has important meaning for the networking and reasonably utilized of area pipeline gas.
Description
technical field [0001] The invention relates to natural gas, in particular to the technical field of measurement and control of natural gas. Background technique [0002] With the acceleration of the urbanization process, there is no obvious concept of territorial division between cities, cities and towns, and towns in many economically developed areas, and economic activities are closely linked. In view of this, if the independent gas supply networks originally supplied to cities or towns, especially natural gas supply pipelines, can be connected, small pipeline networks and local area pipeline networks will become large pipeline networks, which will not only help balance the overall The load of the pipeline network can balance the pressure of each gas supply point; and it can greatly improve the utilization efficiency of the pipeline network, reduce the investment in the transmission and distribution pipeline network, and improve the safety, reliability and flexibility of ...
Claims
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IPC IPC(8): F17D3/18
Inventor 李树旺罗东晓
Owner 涿州滨海燃气有限公司