CN212513605U

CN212513605U - Flow resistance measurement test system

Info

Publication number: CN212513605U
Application number: CN202021669217.9U
Authority: CN
Inventors: 郑亚青; 孙璐璐; 刘超; 郑通; 王程永; 王小佚
Original assignee: Beijing Startech Co ltd
Current assignee: Beijing Startech Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-09
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a flow resistance measurement test system comprises reverse osmosis system water installation, open water tank, water pump, inverter motor, ball valve, high accurate flowmeter and filter, and reverse osmosis system water installation's play water end passes through the pipeline and arranges the inside intercommunication of the open water tank of subsurface in, and inverter motor's output is connected with the water pump through the shaft coupling, the other end is connected with the converter, and the end that absorbs water of water pump passes through pipeline and open water tank internal connection, goes out the water end and passes through the pipeline and be connected with the ball valve, the other end of ball valve establishes ties in proper order through the pipeline has stationary flow stabiliser, high accurate flowmeter, main road governing valve and filter, and the other end of filter passes through the pipeline and is connected with the. The utility model discloses a flow resistance measurement test system has perfected test system, has optimized structural design, has increased current stabilizer and reposition of redundant personnel system, has improved measuring precision, and through changing the product butt joint frock, it is wider to measure the product type.

Description

Flow resistance measurement test system

Technical Field

The utility model belongs to the technical field of the liquid stream is measured, especially, relate to a flow resistance measurement test system.

Background

The flow resistance measurement is widely applied to the test calibration fields of valves, filters, flowmeters, orifice plates, Venturi tubes and the like to obtain the flow coefficient, the flow resistance coefficient and the power consumption of the original components. Therefore, the flow resistance test is designed and improved for the flow elements such as valves and the like, the design is reasonable for fluid engineering, the power consumption is reduced, and reliable test detection data are provided. Prior publication patent 2016200057042 also discloses a valve flow resistance test device, and the problem that exists of above patent is: the testing device is lack of a steady flow device, incoming flow of water is supplied by a water pump, the water supply pressure of the water pump is pulsating, uncertainty is also brought to flow characteristic measurement of a tested element by water flow pressure and flow pulsation, and the system precision of the test is not high; and the steady flow device has been considered in the article of "valve flow resistance testing device" that 2008's 2 nd publication reported in the valve journal, but adopted 1 stainless steel pressure vessel of 25m year as steady voltage container, its defect is that the cost is high, area is big, and pressure vessel's withstand voltage directly influences experimental pressure, fluid characteristic measurement under the high pressure is realized, then the required price of the stainless steel pressure vessel of big volume high pressure is higher, above-mentioned patent 2016200057042 and "valve flow resistance testing device" all have experimental pipe-line system lack the reposition of redundant personnel system and do not have the problem of asking and filtering quality of water. The valve tests with a plurality of specific drift diameters can be carried out only through branches with specific calibers in the absence of a shunt system, and stepless regulation of full flow and pressure ranges cannot be carried out. The water quality requirement of the liquid flow test has great influence on the stability and the measurement accuracy of a test system, and if the water hardness is too high and the calcium and magnesium ions are high, the scale formation can be generated on flow-passing elements such as a flowmeter, a valve and the like in a pipeline system, so that the measurement accuracy is influenced.

Disclosure of Invention

The utility model discloses aim at overcoming prior art's not enough, provide a flow resistance measurement test system.

The utility model relates to a flow and flow resistance measurement test system, which comprises a reverse osmosis water making device, an open type water tank, a water pump, a variable frequency motor, a ball valve, a high-level flow meter and a filter, wherein the water outlet end of the reverse osmosis water making device is communicated with the interior of the open type water tank arranged under the ground through a pipeline, the output end of the variable frequency motor is connected with the water pump through a coupling, the other end of the variable frequency motor is connected with a frequency converter, the water suction end of the water pump is connected with the interior of the open type water tank through a pipeline, the water, the other end of the ball valve is sequentially connected with a steady flow stabilizer, a high-accuracy flow meter, a main path regulating valve and a filter in series through a pipeline, the other end of the filter is connected with a tested element through the pipeline, the other end of the tested element is connected with the inlet end of a back pressure regulating valve through the pipeline, and the outlet end of the back pressure regulating valve is communicated with the inside of the open water tank through the pipeline.

As a further improvement of the utility model, more than one grid net with the same diameter as the flow channel is fixed on the flow channel inside the steady flow voltage stabilizer.

As a further improvement, the branch which is communicated with the inside of the open water tank is arranged on the pipeline which is connected with the ball valve of the water pump, and the branch is provided with a shunt regulating valve.

As a further improvement of the utility model, the two ends of the branch and the bypass adjusting valve are arranged on the pipelines at the two ends of the main path adjusting valve and connected.

As a further improvement of the utility model, pressure sensors are arranged on the pipeline between the water pump and the ball valve and the pipeline between the ball valve and the steady flow stabilizer; and a pipeline between the filter and the element to be tested, a pipeline between the element to be tested and the back pressure regulating valve, and a pipeline between the back pressure regulating valve and the open water tank are respectively provided with a pressure sensor and a temperature sensor.

As a further improvement, the high accurate flowmeter, pressure sensor, temperature sensor and converter all with computer data connection.

The utility model discloses a flow resistance measurement test system has perfected test system, has optimized structural design, has increased current stabilizer and reposition of redundant personnel system, and stability is high during concrete measurement, can filter and reduce the hardness of quality of water to quality of water, has improved measuring precision, and through changing the product butt joint frock, it is wider to measure the product type, can adapt to the component of different latus rectum, and equal parameter scale test device construction cost is lower.

Drawings

FIG. 1 is a flow chart of the system components of a flow resistance measurement test system of the present invention;

FIG. 2 is a schematic structural diagram of a testing device of a flow resistance measurement testing system of the present invention;

fig. 3 is a schematic structural diagram of the current stabilizing regulator of the present invention;

fig. 4 is a longitudinal sectional view of the current stabilizing regulator of the present invention.

Detailed Description

The utility model discloses a flow resistance measurement test system, by reverse osmosis system water installation 1, open water tank 2, water pump 3, inverter motor 4, ball valve 6, high accurate flowmeter 8 and filter 11 constitute, reverse osmosis system water installation 1's play water end passes through the pipeline and arranges the 2 inside intercommunications of open water tank of underground in, reverse osmosis system water installation 1 preparation comprises RO reverse osmosis module, the index of deionized water is less than 10s/cm for the conductivity value, can get rid of the inside scale matter that forms of calcium magnesium ion prevention device, when quality of water conductivity is higher than this value, need purify the filtration again to the water in the water tank. Open water tank 2 arranges the below ground in and conveniently drains, and stopped the influence of the pressure differential that high-order water liquid level brought to the test, inverter motor 4's output is connected with water pump 3 through the shaft coupling, the other end is connected with converter 17, water pump 3's the end that absorbs water is through pipeline and open water tank 2 internal connection, it is connected with ball valve 6 to go out the water end through the pipeline, be equipped with on the pipeline that water pump 3 and ball valve 6 are connected with the branch road of the inside intercommunication of open water tank 2, be equipped with reposition of redundant personnel governing valve 5 on the branch road. The devices connected with one side of the water outlet end of the water pump 3 are all arranged on the working frame, the other end of the ball valve 6 is sequentially connected with a steady flow stabilizer 7, a high-level flow meter 8, a main path regulating valve 9 and a filter 11 in series through a pipeline, more than one grid net 14 with the same diameter as the flow channel is fixed on the flow channel inside the steady flow stabilizer 7, which can adjust the flow rate and pressure pulsation of the incoming water, the high-level flow meter 8 is used for measuring the flow rate of the water flow, the high-precision mass, vortex street and turbine flowmeter are adopted, the pipelines at two ends of the main path regulating valve 9 are respectively provided with a branch circuit which is connected with two ends of a bypass regulating valve 10, the main path regulating valve 9 and the bypass regulating valve 10 are connected in parallel to regulate the test flow and pressure, the caliber of the main path regulating valve 9 is slightly larger than that of the bypass regulating valve 10, the bypass regulator valve 10 functions for fine tuning to achieve inlet conditions of the test piece. The other end of the filter 11 is connected to the device under test 12 through a pipeline, the other end of the device under test 12 is connected to the inlet end of a back pressure regulating valve 13 through a pipeline, and the back pressure regulating valve 13 is a device for simulating the outlet pressure of the device under test. The outlet end of the back pressure regulating valve 13 is communicated with the inside of the open water tank 2 through a pipeline. Pressure sensors 15 are arranged on a pipeline between the water pump 3 and the ball valve 6 and a pipeline between the ball valve 6 and the flow stabilizing and stabilizing device 7; the pipeline between the filter 11 and the element to be tested 12, the pipeline between the element to be tested 12 and the back pressure regulating valve 13, and the pipeline between the back pressure regulating valve 13 and the open water tank 2 are all provided with a pressure sensor 15 and a temperature sensor 16, and the high-level flowmeter 8, the pressure sensor 15, the temperature sensor 16 and the frequency converter 17 are all in data connection with a computer 18 and used for monitoring and calculating various data in the experimental process in real time.

Computer 18 remote control converter 17, converter 17 control inverter motor 4 drive water pump 3 and absorb water from open water tank 2, through adjusting inverter motor 4's rotational speed in order to obtain the water of different pressures and flow, behind the pressure boost rivers divide into two the way, the main road passes through ball valve 6, the shunt control valve 5 is passed through along separate routes, then two way rivers converge all the way and loop through stationary flow stabiliser 7 and high accurate flowmeter 8, behind high accurate flowmeter 8 rivers divide into two the way, respectively through main road governing valve 9 and bypass control valve 10, then converge all the way again and pass through filter 11 and measured component 12. If the simulation back pressure test is carried out, the water flow returns to the open water tank 2 through a pipeline after passing through the back pressure regulating valve 13 connected with the tested element 12. When water flows through the device, the pressure sensor 15, the temperature sensor 16 and the high-level flowmeter 8 monitor the pressure, the temperature and the flow of the water flow in real time in the whole process, and transmit data to the computer 18, and the computer 18 processes all data acquired in the test process and then calculates parameters such as flow characteristics, flow resistance characteristics and the like of the element to be tested.

Claims

1. A flow and flow resistance measurement test system comprises a reverse osmosis water making device (1), an open water tank (2), a water pump (3), a variable frequency motor (4), a ball valve (6), a high level flow meter (8) and a filter (11), and is characterized in that the water outlet end of the reverse osmosis water making device (1) is communicated with the interior of the open water tank (2) arranged under the ground through a pipeline, the output end of the variable frequency motor (4) is connected with the water pump (3) through a coupler, the other end of the variable frequency motor is connected with a frequency converter (17), the water absorbing end of the water pump (3) is connected with the interior of the open water tank (2) through a pipeline, the water outlet end of the water pump is connected with the ball valve (6) through a pipeline, the other end of the ball valve (6) is sequentially connected with a steady flow stabilizer (7), the high level flow meter (8), a main path regulating valve (9) and the filter (11), the other end of the tested element (12) is connected with the inlet end of the backpressure regulating valve (13) through a pipeline, and the outlet end of the backpressure regulating valve (13) is communicated with the inside of the open water tank (2) through a pipeline.

2. A flow resistance measurement and test system as claimed in claim 1, wherein the steady flow stabilizer (7) has more than one grid mesh (14) fixed on its internal flow channel and having the same diameter as the flow channel.

3. The flow and flow resistance measurement test system according to claim 1, wherein a branch communicated with the inside of the open water tank (2) is arranged on a pipeline connecting the water pump (3) and the ball valve (6), and a shunt regulating valve (5) is arranged on the branch.

4. The flow resistance measurement test system according to claim 1, wherein the main path regulating valve (9) has a branch on the two ends connected to the two ends of the bypass regulating valve (10).

5. The flow resistance measurement test system according to claim 1, wherein pressure sensors (15) are arranged on a pipeline between the water pump (3) and the ball valve (6) and a pipeline between the ball valve (6) and the steady flow stabilizer (7); and a pressure sensor (15) and a temperature sensor (16) are arranged on a pipeline between the filter (11) and the element to be tested (12), a pipeline between the element to be tested (12) and the back pressure regulating valve (13), and a pipeline between the back pressure regulating valve (13) and the open water tank (2).

6. A flow resistance measurement test system according to claim 5, characterized in that the high level flow meter (8), the pressure sensor (15), the temperature sensor (16) and the frequency converter (17) are in data connection with the computer (18).