CN206223266U - Testing flow meter device - Google Patents

Abstract

When sensed flow meter is needed, first flowmeter is connected on the reserved mouth of pipe of water collector, then circulating pump is opened, water so in lower water box enters into elevated tank inhalant region after circulating pump is lifted by circulation pipe, inhalant region gradually overflows to exhalant region after filling water, the water of exhalant region flow to water collector and is used for testing flow meter by flow pipe, due to the flow of demand when the water that circulating pump is provided is more than testing flow meter, the water level for turning round and look at exhalant region gradually rises, exhalant region is filled rear automatic overflow to race way by the unnecessary water of exhalant region, the water of race way is directly emitted into lower water box by circulation pipe, so the water level of exhalant region is in stable state all the time, it is supplied to the pressure flow of water collector also to stablize relatively, ensure the measuring accuracy of flowmeter.

Description

Testing flow meter device

Technical field

The present invention relates to a kind of testing flow meter device, the testing flow meter device of particularly a kind of automatic constant-pressure.

Background technology

Testing flow meter needs current and pressure to stablize relatively, changes small, and most of at present is all by water pump using front end Plus frequency-changing pressure stabilizing device provides water source, the problem that this kind of pattern is differed from due to the frequency-changing pressure stabilizing device response time causes water pressure fluctuations Frequently, measuring accuracy and efficiency are low.

The content of the invention

It is an object of the invention to design a kind of testing flow meter device that can stablize offer pressure flow, device during test Using circulating working mode, floor space is small, water supply capacity is continual and steady；The present invention realizes above-mentioned purpose in the following way, Testing flow meter device by：Elevated tank, lower water box, circulating pump, return pipe, flow pipe, circulation pipe, water collector composition are high Position water tank is divided into inhalant region, exhalant region, the part of race way three, and lower water box top is provided with the installation of grid type water collector Area, the water inlet of circulating pump is connected to lower water box, water outlet and is connected to inhalant region, race way by return pipe and low level water by circulation pipe Case is connected, and exhalant region is connected by flow pipe and water collector, and the mouth of pipe of connection flow gauge is provided with water collector, flowmeter Water outlet is directly discharged to lower water box, and the flow of circulating pump is more than testing flow meter demand；Using constituted above, when needing to survey During examination flowmeter, first flowmeter is connected on the reserved mouth of pipe of water collector, then opened circulating pump, in such lower water box Water by circulating pump lifted after elevated tank inhalant region is entered into by circulation pipe, inhalant region gradually overflows to water outlet after filling water Area, the water of exhalant region flow to water collector and is used for testing flow meter by flow pipe, because the water that circulating pump is provided is more than stream The flow of demand when gauge is tested, the water level for turning round and look at exhalant region gradually rises, and exhalant region unnecessary water is automatic after exhalant region is filled Overflow to race way, the water of race way is directly emitted into lower water box by circulation pipe, and the water level of such exhalant region is in all the time Stable state, it is supplied to the pressure flow of water collector also to stablize relatively, it is ensured that the measuring accuracy of flowmeter.

Brief description of the drawings

Fig. 1 implements state diagram for the present invention；Fig. 2 is scheme of installation of the present invention.

Specific embodiment

Testing flow meter device as shown in Figure 1 by：Elevated tank 1, lower water box 2, circulating pump 3, return pipe 4, send water Pipe 5, circulation pipe 6, water collector 7 are constituted, and elevated tank 1 is divided into inhalant region 8, exhalant region 9, the part of race way 10 3, high-order Water tank 1 is arranged on support 13 as shown in Figure 2, and the top of lower water box 2 is provided with the installing zone 11 of grid type collector pipe 7, circulation The water inlet of pump 3 is connected to lower water box 2 by pipeline, the delivery port of circulating pump 3 is connected to inhalant region 8, race way by circulation pipe 6 10 are connected by return pipe 4 and lower water box 2, and exhalant region 9 is connected by flow pipe 5 and water collector 7, are set on water collector 7 There are the mouth of pipe 12 of connection flow gauge, flowmeter（Do not marked in figure on grid type installing zone 11, the water inlet and collection of flowmeter The mouth of pipe 12 of hydrophone 7 is connected, and the water outlet of flowmeter is directly emitted into lower water box 2 by the grid of installing zone 11.Work as needs During sensed flow meter, first circulating pump 3 is opened, the water in such lower water box 2 is entered after circulating pump 3 is lifted by circulation pipe 6 Enter to the inhalant region 8 of elevated tank 1, inhalant region 8 gradually overflows to exhalant region 9 after filling water, and the water of exhalant region 9 passes through flow pipe 5 It flow in water collector 7 and is used for testing flow meter, due to the stream of demand when the water that circulating pump 3 is provided is more than testing flow meter Amount, the water level of exhalant region 9 is gradually risen when turning round and look at test, and exhalant region is filled rear automatic overflow to circulation by the unnecessary water of exhalant region 9 Area 10, the water of race way 10 is directly emitted into lower water box 2 by circulation pipe 6, and at this moment the water level of exhalant region 9 is all the time in stabilization State, so its be supplied to the pressure flow of water collector 7 also to stablize relatively, the measuring accuracy of flowmeter is ensured with this.

Claims (1)

1. testing flow meter device, its feature is：Testing flow meter device is by elevated tank, lower water box, circulating pump, backwater Pipe, flow pipe, circulation pipe, water collector composition, elevated tank are divided into inhalant region, exhalant region, the part of race way three, low level water Box top is provided with grid type water collector installing zone, the water inlet of circulating pump be connected to lower water box, water outlet by circulation pipe be connected into Pool, race way are connected by return pipe and lower water box, and exhalant region is connected by flow pipe and water collector, is set on water collector The mouth of pipe of connection flow gauge is equipped with, the water outlet of flowmeter is directly discharged to lower water box, and the flow of circulating pump is more than flow measurement Examination demand.