CN86207061U

CN86207061U - Recorder for measuring the flow of water

Info

Publication number: CN86207061U
Application number: CN 86207061
Authority: CN
Inventors: 李松汉
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-09-22
Filing date: 1986-09-22
Publication date: 1988-04-13

Abstract

The utility model provides a water flow automatic measurement recorder, comprising a cutoff weir, a floating ball, a lever recording pen, a self-rotation recording paper and a range converter. The utility model has the advantages of simplicity, reliability and low cost, being suitable for various ranges of measurement. The height value of a liquid level is displayed on the self-rotation recording paper through the recording pen which is coincidently connected with the lever. The instantaneous flow rate multiplied by the rotation time of the recording paper comes to total flow rate. The utility model is easy to change range of measurement to obtain required requirements because of the structure of the water flow automatic measurement recorder and the recording paper made by graphical method.

Description

Recorder for measuring the flow of water

The utility model is a kind of flow automatic measuring registering instrument of improved water.

Existing instrument for measuring and recording is the signal that is measured liquid level by probe, and Change is counted as flow through the electronics counter, is shown on the recording chart.The computing system that it has relatively high expectations precision has only single fixing measurement range, can not change, and cost is bigger.Domestic do not have this quasi-instrument to produce as yet.Thereby China can't can only estimate the directly measurement accurately of total flow rate do of water at present.The accuracy of the nationwide investigation of pollution sources that caused begun in 1984 is restricted.

The purpose of this utility model is to obtain a kind of simple in structure, with low cost, dependable performance, do not need external power supply, can be applicable to the flow automatic measuring registering instrument of multiple measurement range.

Principle of the present utility model, structure are as follows: see Fig. 1, adopt triangle weir plate or trapezoidal weir plate (1) to dam (the former is used for, low discharge, the latter is used for big, flow), liquid level is lifting with the variation of flow, and ball float (2) connects by steel wire.Transmit the end of the height of liquid level to lever (7), the tie point of steel wire and lever overlaps with the writing point that shows flow, and another termination counterbalance weight (8) of lever resets to be used as.Because ball float can move horizontally on a small quantity, as the L of Fig. 2, so the intersection point of the track of the horizontal line of the height H i of certain liquid level and nib (6) is exactly Hi corresponding flow Qi, Qi And is that the garden that the garden heart is done is exactly the scale of flow Qi value with the axle center of recording chart (4) excessively.Simultaneously, the recording chart (4) that is driven by quartzy timing movement is just recorded the corresponding time of down-off Qi.At last, with record each flow (Qi value) multiply by time corresponding (corner of recording chart) separately, just obtain accumulating total flow.

Ball float of the present utility model (2) is a range Bian Change device that can adapt to different measurement starting points and regulate with web member (3) between the lever (7), see Fig. 3, as long as be connected on the starting point bolt (13) of required range, mix corresponding recording chart, just can record the flow of this range.

Because said apparatus reaches the recording chart that is got by graphing method,, reach required requirement so the utility model is easy to change measurement range.Manufacturer can make the recording chart of several specifications commonly used for selecting for use.

The utility model using method is as follows: establish weir plate (1) and dam, make liquid level arrive its benchmark position line H ₀, the adjustable plate (12) of range Bian Change device (3) is connected on the benchmark bolt (11), the connection steel wire (9) that gently draws ball float (2) ， And till just strained tightens up, and the location finishes.Minimum point with the range that will survey is a starting point, be connected on the close starting point bolt (13) in range Bian Change device (3) lining and go up And locking (11) and (13), left hand is gently carried the recording pointer (6) that is connected as spring leaf with lever (7) again, and the right hand is placed on the quartzy holding paper mechanism (5) that drives movement with corresponding recording chart (4) and goes up the And clamping.So far, connect current and just begin to survey record.

The error range of this flow instrument for measuring and recording is ± 5%, and it only needs a joint 1.5V dry cell for quartzy movement usefulness, can move 1 year.10 days be one-period Geng Change recording chart (also can on request and fixed cycle).

This instrument for measuring and recording can prepositionly amplify, dwindle mechanism, to obtain N doubly or the range (N≤3) of 1/ (N); Identical m piece weir plate on the Dang And multi pack is surveyed wherein weir plate of record with its, just can measure m times of flow.

Claims

1, the flow automatic measuring registering instrument of a water of being made up of weir plate (1), ball float (2), lever recording pointer (6), rotation recording chart (4) and range converter (3) is characterized in that:

A, rotation recording chart (4) transmit driving by the movement of common crystal clock through simple gears mechanism.

The recording pointer (6) of B, demonstration flow is swung with lever (7), the tie point of lever and ball float line overlaps with the nib of (6), (6) be to be connected by spring leaf (20) with (7), the adjusting that nib compresses recording chart (4) is to finish by the compressing tablet bolt (19) on the loxosis of the contiguous block (18) between spring leaf (20) and the lever (7).

C, range converter (3) are provided with location-plate (14) and adjustable plate (12), and location-plate (14) is provided with the starting point bolt (13) of benchmark bolt (11) and each range commonly used, and two bolts were both located, and worked the effect of tightening up again.

2, the rotation recording chart (4) of device according to claim 1, its design feature is as follows:

A, certain section flow and the high degree Change of liquid level of triangular-notch weir or Cipolletti weir calculated, the ruler that draws, the scale on the length of chi are the flow marks.The chi of this flow scale vertically is placed on the start position of recording chart, then with each flow scale horizontal projection to the camber line of nib track, obtain each intersection point.

B, be the garden heart with the garden heart of recording chart, each intersection point of crossing on the camber line of nib track is done concentric garden, and recording chart just obtains the scale of each flow.