Research on the Field Test Methods of Flow Rate and Water Level of Urban Drainage Pumping Stations

2013 ◽  
Vol 718-720 ◽  
pp. 903-907
Author(s):  
Jian Gang Feng ◽  
Li Feng Bu ◽  
You Wei Xu ◽  
Bin Mao
Keyword(s):  
Water Level ◽  
Field Test ◽  
Flow Rate ◽  
Measurement Method ◽  
Test Methods ◽  
Test Case ◽  
Urban Drainage ◽  
Measure Flow Rate ◽  
Pumping Station ◽  
Pumping Stations

The flow rate and water level measure is one key work of the pumping station field test. And the reliable, applicable, economic and effective measurement method and instruments are the key decisive factors of the field test. The urban drainage pumping stations usually pump sewage, and its inlet structure and outlet structure generally use closed arrangement. These make the flow rate and water level measurement of the field test become complicated. Based on the characteristics of urban drainage pumping station, this paper analyzed the measurement methods of flow rate and water level parameters of the field test for urban drainage pumping station. In combination with a field test case for an urban drainage pumping station, this paper demonstrated how to choose the reliable, applicable, economic and effective measurement method to measure flow rate and water level parameters.

scholarly journals DESIGN AND DEVELOPMENT OF THE SOFTWARE COMPLEX FOR AUTOMATIC SELECTION OF PUMPING STATIONS OF WATER SUPPLY AND FORMATION OF TECHNICAL AND COMMERCIAL PROPOSALS

2021 ◽  
pp. 105-114
Author(s):  
Дмитрий Викторович Титарев ◽  
Максим Владиславович Трунников ◽  
Павел Юрьевич Володин
Keyword(s):  
Water Supply ◽  
Flow Rate ◽  
Software Package ◽  
Design And Development ◽  
Automatic Calculation ◽  
Software Complex ◽  
Pumping Station ◽  
Calculation Of Parameters ◽  
Pumping Stations ◽  
Selection Of

Работа посвящена вопросам проектирования и разработки программного комплекса для автоматического расчета параметров и дальнейшего подбора станций водоснабжения. На основе проведенных расчетов программный комплекс позволяет формировать технико-коммерческое предложение на поставляемое оборудование. Особое внимание уделено подбору параметров насосной станции согласно данным о напоре и расходе в рабочей точке. Это является важной задачей в условиях отсутствия полноты данных, предоставляемых производителями оборудования. The work is devoted to the design and development of a software package for automatic calculation of parameters and further selection of water supply stations. Based on the calculations performed, the software package allows you to form a technical and commercial proposal for the equipment supplied. Particular attention is paid to the selection of the parameters of the pumping station according to the data on the head and flow rate at the operating point. This is an important task in the absence of completeness of data provided by equipment manufacturers.

Underwater high-precision ultrasonic water level measurement method for hydraulic physical model

2020 ◽  
Vol 28 (9) ◽  
pp. 2027-2034
Author(s):  
Yue-jie SHU ◽  
◽  
Jun WU ◽  
Yuan-hang ZHOU ◽  
Yu-feng MA ◽  
...  
Keyword(s):  
Water Level ◽  
Physical Model ◽  
High Precision ◽  
Measurement Method ◽  
Level Measurement

Avoiding Sedimentation and Air Entrainment in Pump Sump for Wet Pit Pumping Stations

2015 ◽  
Author(s):  
Raja Abou Ackl ◽  
Andreas Swienty ◽  
Flemming Lykholt-Ustrup ◽  
Paul Uwe Thamsen
Keyword(s):  
Physical Model ◽  
Air Entrainment ◽  
Flow Patterns ◽  
Operating Conditions ◽  
Design Criteria ◽  
Flow Conditions ◽  
Pumping Station ◽  
Pumping Stations ◽  
Pump Sump ◽  
Pump Stations

In many places lifting systems represent central components of wastewater systems. Pumping stations with a circular wet-pit design are characterized by their relatively small footprint for a given sump volume as well as their relatively simple construction technique [1]. This kind of pumping stations is equipped with submersible pumps. These are located in this case directly in the wastewater collection pit. The waste water passes through the pump station untreated and loaded with all kind of solids. Thus, the role of the pump sump is to provide an optimal operating environment for the pumps in addition to the transportation of sewage solids. Understanding the effects of design criteria on pumping station performance is important to fulfil the wastewater transportation as maintenance-free and energy efficient as possible. The design of the pit may affect the overall performance of the station in terms of poor flow conditions inside the pit, non-uniform und disturbed inflow at the pump inlet, as well as air entrainment to the pump. The scope of this paper is to evaluate the impact of various design criteria and the operating conditions on the performance of pump stations concerning the air entrainment to the pump as well as the sedimentation inside the pit. This is done to provide documentation and recommendations of the design and operating of the station. The investigated criteria are: the inflow direction, and the operating submergence. In this context experiments were conducted on a physical model of duplex circular wet pit wastewater pumping station. Furthermore the same experiments were reproduced by numerical simulations. The physical model made of acrylic allowed to visualize the flow patterns inside the sump at various operating conditions. This model is equipped with five different inflow directions, two of them are tangential to the pit and the remaining three are radial in various positions relative to the pumps centerline. Particles were used to enable the investigation of the flow patterns inside the pit to determine the zones of high sedimentation risk. The air entrainment was evaluated on the model test rig by measuring the depth, the width and the length of the aerated region caused by the plunging water jet and by observing the air bubbles entering the pumps. The starting sump geometry called baseline geometry is simply a flat floor. The tests were done at all the possible combinations of inflow directions, submergence, working pump and operating flow. The ability of the numerical simulation to give a reliable prediction of air entrainment was assessed to be used in the future as a tool in scale series to define the scale effect as well as to analyze the flow conditions inside the sump and to understand the air entrainment phenomenon. These simulations were conducted using the geometries of the test setup after generating the mesh with tetrahedral elements. The VOF multiphase model was applied to simulate the interaction of the liquid water phase and the gaseous air phase. On the basis of the results constructive suggestions are derived for the design of the pit, as well as the operating conditions of the pumping station. At the end recommendations for the design and operating conditions are provided.

scholarly journals Controlled outflow of storm water without flooding

2018 ◽  
Vol 168 ◽  
pp. 02001
Author(s):  
Karel Adámek ◽  
Jan Kolář ◽  
Pavel Peukert
Keyword(s):  
Numerical Simulation ◽  
Water Level ◽  
Flow Rate ◽  
Storm Water ◽  
Resistance Characteristic ◽  
The Given

There are many types of devices used for various purposes, called as vortex valves. The aim of this paper is the design of vortex valves, determined for controlled higher outflows from retention tanks. The paper follows the previous study of smaller sizes of vortex valves. The method of flow numerical simulation allows us to identify the reason of the two-branch operational (resistance) characteristic of the solved valves and the suitable sizes of the main valve dimensions for the given flow rate and water level.

Design of Hydraulic Station of Crawler Hydraulic Drilling Rig

2014 ◽  
Vol 889-890 ◽  
pp. 380-384
Author(s):  
Zhi Liu ◽  
Peng Fang ◽  
Di Wu ◽  
Dong Li
Keyword(s):  
Design Process ◽  
Structural Design ◽  
Control Technique ◽  
Pumping Station ◽  
Drilling Rig ◽  
Pumping Stations ◽  
Hydraulic Station ◽  
Scheme Selection ◽  
And Control

This article describes the design process of pumping stations of crawler full hydraulic drilling rig. The principle of full hydraulic drilling rig pumping station,scheme selection, hydraulic components selection and structural design of the tank were presented. The system used double loops in which some advanced hydraulic components and control technique were adopt.

PUMPING STATION AND STAMPING MACHINE FOR THE PRODUCTION OF RADIATION SOURCES

2021 ◽  
pp. 46-51
Author(s):  
S. A. Mikaeva ◽  
A. S. Mikaeva ◽  
A. A. Dyukin
Keyword(s):  
Electrical Equipment ◽  
Production Volume ◽  
Automated Control ◽  
Working Pressure ◽  
Pumping Station ◽  
Equipment Operation ◽  
Pumping Stations ◽  
Radiation Sources ◽  
Equipment Configuration ◽  
Technical Solutions

The article describes a five-lamp pumping station and a semi-automatic stamping machine for the production of bactericidal ultraviolet lamps. Standard methods of production and testing of pumping stations and stamping machines were analyzed. In the course of work and on the basis of the conducted research, the technical characteristics and equipment configuration were worked out. The pumping station is designed for processing simultaneously five products that will later be bactericidal ultraviolet lamps, including: decontamination of products, oxidation of electrodes, filling products with a gas mixture to the working pressure, loading amalgam and desoldering. This equipment ensures the fulfillment of the production volume for the production of bactericidal lamps. When designing and manufacturing electrical equipment, components from the world's leading manufacturers are used. The use of high-quality materials can significantly increase the efficiency of equipment operation. The latest technical solutions combined with a well-thought-out design make it possible to successfully integrate this equipment into integrated automated control systems.

A non-invasive measurement method of pipeline flow rate based on dual FBG sensors

2022 ◽  
pp. 1-1
Author(s):  
Cong Li ◽  
Cong Li ◽  
Ming-Yao Liu ◽  
Han Song ◽  
Xue-Li Yang ◽  
...  
Keyword(s):  
Flow Rate ◽  
Measurement Method ◽  
Non Invasive ◽  
Pipeline Flow ◽  
Fbg Sensors ◽  
Invasive Measurement

scholarly journals Effects of Diameters on Countercurrent Flow Limitation at a Square Top End in Vertical Pipes

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Michio Murase ◽  
Koji Nishida ◽  
Toshihide Torige ◽  
Toshiya Takaki ◽  
Raito Goda ◽  
...  
Keyword(s):  
Water Level ◽  
Flow Rate ◽  
Liquid Flow ◽  
Liquid Flow Rate ◽  
Strong Relationship ◽  
Countercurrent Flow ◽  
Flow Limitation ◽  
Vertical Pipe ◽  
Surge Line ◽  
Inclined Pipe

The falling liquid flow rate under flooding conditions is limited at a square top end of a vertical pipe in the pressurizer surge line with the diameter of about 300 mm that consists of a vertical pipe, a vertical elbow, and a slightly inclined pipe with elbows. In this study, therefore, we evaluated effects of diameters on countercurrent flow limitation (CCFL) at the square top end in vertical pipes by using existing air-water data in the diameter range of D = 19-250 mm. As a result, we found that there was a strong relationship between the constant CK and the slope m in the Wallis-type correlation where the Kutateladze parameters were used for the dimensionless gas and liquid velocities. The constant CK and the slope m increased when the water level is increased in the upper tank h. CCFL at the square top end of the vertical pipes could be expressed by the Kutateladze parameters with CK = 1.53±0.11 and m = 0.97 for D ≥ 30 mm. The CK values were smaller for D = 19-25 mm than those for D ≥ 30 mm.

scholarly journals Calibration of Stainless Steel-edged V-Notch Weir Stop Logs for Water Level Control Structures

2019 ◽  
Vol 35 (5) ◽  
pp. 745-749
Author(s):  
L. E. Christianson ◽  
R. D. Christianson ◽  
A. E. Lipka ◽  
S. Bailey ◽  
J. Chandrasoma ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Water Level ◽  
Flow Rate ◽  
Subsurface Drainage ◽  
Conservation Practices ◽  
Nutrient Loads ◽  
Level Control ◽  
Control Structures ◽  
Flow Monitoring ◽  
Flow Through

Abstract. Dependable flow rate measurements are necessary to calculate flow volumes and resulting nutrient loads from subsurface drainage systems and associated conservation practices. The objectives of this study were (1) to develop appropriate weir equations for a new stainless steel-edged 45° V-notch weir developed for AgriDrain inline water level control structures and (2) to determine if the equation was independent of flow depth in the structure. Weirs for 15 cm (6 in.) and 25 cm (10 in.) inline water level control structures were placed at three heights in each structure: at the base, 48 cm from the base, or 97 cm from the base, and the height of the nappe above the weir crest was recorded over a range of flow rates. The resulting data were fitted to equations of the form Q = aHb where Q is the flow rate, H is the height of the nappe above the weir crest, and a and b are fitted parameters. There were no significant differences in the fitted parameters across the two structure sizes or across the three weir placements. The fitted equation for these new stainless steel-edged V-notch weirs was Q = 0.011H2.28 with Q in liters per second and H in centimeters, and Q = 1.44H2.28, with Q in gallons per minute and H in inches. These equations can be used for measuring flow through AgriDrain in-line structures, although in-house weir calibration is highly recommended for specific applications, when possible. Keywords: Drainage, Flow monitoring, Subsurface drainage, V-notch weir, Weir calibration.

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