Timing points is designed to automatically reduce the pressure of gas, and further maintaining it at a predetermined level regardless of the flow variations within the rated figures. Consider the features of EMG.
Hydraulic fracturing are divided according to the method of placing equipment in the following types:
The Fundamental difference between hydraulic fracturing of the latter type is that they are not the typical product to factory readiness.
Timing points with pressure up to 0.6 MPa in utility and industrial plants, boiler houses, stand alone, housed in buildings near the input of the pipeline, in the premises, which is gas-powered equipment. GRU is prohibited to install under stair flights.
Device gas distribution points in the basement, the basement of the buildings, appurtenances to buildings such as hospitals, schools, kindergartens, administrative and residential buildings is not permitted.
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Separately located hydraulic fracturing should have one floor and roof combined. The roof should be legkousvaivaemyh (weight of 1 m of the ceiling – is not more than 120 kg).
Not allowed to install ventilation and flues in separating ceilings and walls of buildings to which is attached a Timing point. All premises shall be provided with artificial and natural lighting, constant ventilation system (natural) with a triple air exchange.
Lighting and electrical equipment are made of flameproof materials. The inputs of the power supply networks must be cable.
In the regulatory hall can accommodate telephone. However, he needs to be protected from explosions.
When mounting the local heating system placed in an isolated room with a separate exit. It must be separated from other areas Timing point Solid walls of fireproof and gastight materials. The temperature should be no more than 130, heating equipment – 95 degrees.
For the PIU should be provided for lightning protection. The floors are made of materials that prevent the formation of sparks.
On the facade of the building in a conspicuous place strike a warning label "Flammable". The letters shall be in height not less than 300 mm.
The Door of the gas-distributing point outwards. Canvas sheathed galvanized steel (0.8 mm thick).
It is with hydraulic fracturing. The equipment of gas-distributing point includes:
Before the shut-off valve is set to bypass (bypass pipeline) with 2 shut-off devices arranged in series. By-pass gas during inspection and repair of the equipment on the lines. For points with pressure greater than 0.6 MPa, and high (over 5 thousand m/h) bandwidth of the bypass pipeline is installed an additional line regulation.
Using special measuring tools to determine:
They are used to vent gas to atmosphere and venting equipment. Purge the pipelines are installed at:
Piping output to places where it is safe dispersion of the gas (at least 1 m above the eaves of structures).
By locking devices shall be capable of disabling the timing points, measuring instruments and equipment without shutting down the gas supply.
The fracture can be single or double. In the first input pressure is adjusted to output one, the second, respectively, the two regulators installed in series. The device performance should be about the same.
Single-stage models are used, typically, when the difference of the indices of the input and output pressure in the range of 0.6 MPa.
Parts of the selection pulse for regulators and safety shut-off valves are identified in the passport of the equipment, but they can change.
It is carried out by written order recorded in the plugin log. Before starting to read the contents of the works that have been made since the stop and also the reasons for the termination of hydraulic fracturing.
The start is done in 2 steps:
It must say:
Also during the inspection you must ensure that:
We are open:
Next specialist:
The journal entry is made on works performed.
Article in other languages:
KK: https://tostpost.com/kk/biznes/39520-gaz-taratu-punkt-rylysy-paydalanu-a-oyylatyn-talaptar.html
PL: https://tostpost.com/pl/biznes/41224-rozrz-d-polecenie-urz-dzenie-wymagania-do-pracy.html
TR: https://tostpost.com/tr/business/36029-her-madde-cihaz-kullan-m-gereksinimleri.html
UK: https://tostpost.com/uk/b-znes/39952-gazorozpod-l-niy-punkt-pristr-y-vimogi-do-ekspluatac.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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