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GB 50265-2022: Standard for pumping station design
Status: Valid GB 50265: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 50265-2022 | English | 2429 |
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11 days [Need to translate]
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Standard for pumping station design
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GB 50265-2022
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| GB 50265-2010 | English | RFQ |
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3 days [Need to translate]
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Design code for pumping station
| Obsolete |
GB 50265-2010
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| GB/T 50265-1997 | English | RFQ |
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3 days [Need to translate]
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Design code for pumping station
| Obsolete |
GB/T 50265-1997
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PDF similar to GB 50265-2022
Basic data | Standard ID | GB 50265-2022 (GB50265-2022) | | Description (Translated English) | Standard for pumping station design | | Sector / Industry | National Standard | | Classification of Chinese Standard | P41;P57 | | Word Count Estimation | 121,17 | | Date of Issue | 2022-07-15 | | Date of Implementation | 2022-12-01 | | Issuing agency(ies) | Ministry of Housing and Urban-Rural Development of the People's Republic of China; State Administration for Market Regulation | | Summary | This standard applies to the design of new construction, expansion and renovation of water supply, irrigation and drainage pumping stations. | GB 50265-2022: Standard for pumping station design---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
1 General
1.0.1 This standard is formulated in order to unify the design standards of pumping stations, ensure the design quality, achieve safety, reliability, advanced technology, reasonable economy, and convenient operation and management.
1.0.2 This standard is applicable to the design of new construction, expansion and renovation of water supply, irrigation and drainage pumping stations.
1.0.3 The design of the pumping station should extensively collect and organize basic data. The basic information should be analyzed, accurate and reliable, and meet the design requirements.
1.0.4 The design of the pumping station should absorb practical experience, conduct necessary scientific experiments, follow the principle of energy saving and consumption reduction, and actively adopt new technologies, new materials, new equipment and new processes.
1.0.5 The design of the pumping station whose peak ground acceleration is greater than or equal to 0.10g shall be designed anti-seismic. For pumping stations with a designed ground motion peak acceleration of 0.05g, anti-seismic calculations may not be performed, but anti-seismic measures should still be taken.
1.0.6 The design of the pumping station shall not only comply with this standard, but also comply with the current relevant national standards.
2 terms
2.0.1 main pumpHouse
The building where the main water pump unit and its auxiliary equipment are installed for operation, installation and maintenance. It consists of host room and installation room.
2.0.2 auxiliary room auxiliary house
Install power distribution and transformation equipment, operation control equipment, auxiliary equipment, communication equipment, etc., as well as rooms for operation, maintenance, testing, duty, management, etc.
2.0.3 Machine hall between hosts
The place where the pump unit and its auxiliary equipment are arranged in the main pump room.
2.0.4 erection bay between installation
In the main pump room, the water supply pump unit and other mechanical and electrical equipment are assembled, repaired, loaded and unloaded.
2.0.5 inlet passage
The water flow channel connecting the water pump inlet pool and the water pump suction port is provided to improve the water suction condition of the water pump.
2.0.6 outlet passage
The water flow channel between the outlet of the water pump body (guide body) and the outlet pool.
2.0.7 pump system
Combination of water pump (excluding power machine and transmission equipment) and water inlet and outlet channels (or pipes).
2.0.8 Pump system efficiency
The product of the flow path (or piping) efficiency and the pump section efficiency.
2.0.9 Shaft pumping station
The pumping device is installed in the pumping station in the shaft type main engine room.
2.0.10 cable car pumping station
The pumping device is installed in the pump station in the cable car that can move along the bank slope track.
2.0.11 Floating pumping station
The pumping device is installed on the pump boat, and it is a pumping station that can float with the change of the water level of the water source.
2.0.12 pumping station equipped with submersible pump
A pumping station where submersible pumps are installed as the main pumping equipment. A pumping station with a fixed installation relationship between the submersible pump and the hydraulic structure is a fixed submersible pumping station; a pumping station without a fixed installation relationship between the submersible pump and the hydraulic structure is a mobile submersible pumping station; by changing the phase sequence of the submersible motor or changing the The installation direction of the submersible pump, the pump station that realizes two-way pumping is a two-way submersible pump station.
2.0.13 submerged pumping station submerged pumping station
When the water level is high, the pump room can be submerged into the fixed pump station operating under water.
3 pumping station level and standard
3.0.1 The grades of pumping station projects and building grades shall be implemented in accordance with the current national standards "Flood Control Standards" GB 50201 and "Water Conservancy and Hydropower Engineering Classification and Flood Standards" SL252.
3.0.2 The flood control (tide) standard of pumping station buildings shall be implemented in accordance with the current national standard "Flood Control Standard" GB 50201 and "Water Conservancy and Hydropower Project Classification and Flood Standard" SL252.For the pumping station arranged across the embankment, its flood (tide) control standard should not be lower than that of the corresponding embankment.
3.0.3 The reasonable service life and durability requirements of the pumping station shall comply with the provisions of the current industry standard "Code for Design of Reasonable Service Life and Durability of Water Conservancy and Hydropower Projects" SL654.
4 Main design parameters of the pumping station
2 The design operating water level, the highest operating water level and the lowest operating water level shall be the water level calculated to the outlet pool according to the irrigation design flow, maximum operating flow, minimum operating flow and control elevation of the irrigation area respectively.
3 The average water level shall be the daily average water level for many years during the irrigation period.
4.2.3 The water level of the inlet pool of the drainage pumping station shall meet the following requirements.
1 The highest water level should be taken as the waterlogging water level in the drainage area that is appropriately higher than the waterlogging control standard in the return period after the station is built. If there are flood control requirements in the drainage area, the impact of the maximum water level shall be considered at the same time.
2 The design operating water level shall be the water level in front of the station calculated from the design drainage water level of the drainage area; for pumping stations with centralized waterlogging storage areas or joint operation with internal drainage stations, the design operating water level shall be the design water level of the waterlogging storage area or internal drainage The water level in front of the station is calculated from the design water level of the standing pool.
3 The maximum operating water level shall be the water level in front of the station calculated according to the requirements of the maximum waterlogging water level allowed in the drainage area; The water storage level or the highest operating water level of the outlet pool of the internal drainage station is estimated to be the water level before the station.
4.The minimum operating water level shall be the water level in front of the station calculated according to the requirements of reducing the buried depth of groundwater or allowing the minimum water level of the flood storage area.
5.The average water level may be the same as the design operation water level. For pumping stations with concentrated waterlogging areas, when the design operating water level adopts the design low water level of the waterlogging area and includes the hydraulic loss of the drainage channel, the average water level shall be the average value of the design low water level of the waterlogging area and the design water level. Into the drainage channel hydraulic loss.
4.2.4 The water level of the outlet pool of the drainage pumping station shall meet the following requirements.
1 The flood control level shall be analyzed and determined according to the flood control standard stipulated in Article 3.0.2 of this standard.
2 The design operating water level shall meet the following requirements.
1) The average water level during the drainage period of the discharge area corresponding to the waterlogging control standard of the drainage area should be taken;
2) When the drainage area is a tidal river section, the average high tide level during the designed drainage period of the drainage area corresponding to the waterlogging control standard of the drainage area should be taken;
3) For important drainage pumping stations, the return period can be appropriately increased after demonstration.
3 The maximum operating water level shall meet the following requirements.
1) When the water level in the discharge area changes greatly, the average water level in the drainage period should be appropriately higher than the return period of the design operation water level but not higher than the design flood return period of the pumping station; when the water level in the discharge area changes When the amplitude is small, the design flood level may be taken;
2) When the discharge bearing area is a tidal river section, the average high tide level of the drainage period in the discharge bearing area is slightly higher than the return period of the design operation water level but not higher than the design flood return period of the pumping station;
3) For important drainage pumping stations, the return period can be appropriately increased after demonstration.
4 The minimum operating water level shall be the average value of the minimum water level or the average value of the minimum tide level during the drainage period of the discharge area over the years.
5 The average water level shall be taken as the multi-year daily average water level or the multi-year daily average tidal level of the drainage area.
6.2.6 For diversion pumping stations whose water sources are frozen or icicled during operation, measures such as anti-icing, de-icing and ice-guiding should be taken.
6.2.7 When the pumps and gates are built together, it is advisable to select a suitable pump type, raise the installation elevation of the water pumps appropriately, and reduce the height difference of the base surface of the pumps and gates.
6.2.8 To build a pump station in a deep excavation area, the excavation depth of the pump room should be reasonably determined to reduce the adverse impact of groundwater on the operation of the pump station, and necessary measures such as drainage of the station area, ventilation of the pump room, heating and lighting should be taken.
6.2.9 When pumping stations are built close to hillsides and ditches, engineering measures such as drainage of mountain torrents and prevention of local landslides and rolling stones should be provided.
6.2.10 The layout form of the underground pumping station shall meet the requirements of operation, flood control and traffic.
6.2.11 The pumping station that diverts water from the schistosomiasis-infested area shall take necessary engineering measures for schistosomiasis control according to the requirements of water conservancy and schistosomiasis control.
7 pump room
7.1 Layout of pump room
7.1.1 The layout of the pump room should be based on the overall layout of the pump station and the geological conditions of the site, the layout of electromechanical equipment, the water inlet and outlet channels or pipelines, the direction of the power supply line, the external traffic, and the convenience for pump room construction, unit installation and maintenance, and project management. Factors, determined by technical and economic comparison.
7.1.2 The layout of the pump room shall meet the following requirements.
1 Meet the requirements for layout, installation, operation and maintenance of electromechanical equipment;
2 Satisfy the structural layout, overall...
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