CN207351950U - Four parameter water-quality measuring device of open type - Google Patents

Abstract

The utility model discloses a kind of four parameter water-quality measuring device of open type, including detecting electrode, further include horizontally disposed moveable open type bracket, it is integrally disposed on the bracket to have the flow cell that at least accommodate detecting electrode and be drained to detected water sample in the flow cell and the peristaltic pump of controllable detected water sample flowing and the control device of the control peristaltic pump start and stop；The flow cell both ends are respectively equipped with water inlet and water outlet, and the position height of the water inlet is corresponding with the position height of outlet pipe in the peristaltic pump, and the position height of the water outlet is more than the position height of the electrode tip of detecting electrode in the flow cell.The utility model is simple in structure, easy to make, and the detected water sample for stablizing flow velocity is obtained by peristaltic pump, improves measurement accuracy, meanwhile, by integrated flow cell, supporting four kinds of different laboratory electrodes, achieve the purpose that four parameters while measure.

Description

Four parameter water-quality measuring device of open type

Technical field

Water quality measurement analysis technical field is the utility model is related to, more specifically, it relates to a kind of four parameter of open type Water-quality measuring device.

Background technology

Electrochemical electrode method is to be tested the activity of component by measuring water sample, so as to obtain its concentration in solution.Generally For, electrode measurement signal weakens with the growth of conducting wire, and the length of universal laboratory electrodes is at most no more than 5 meters. Therefore, when carrying out multi-parameter water quality measurement using electrode method, electrode is necessarily mounted at the detected water sample source, during installing engineering It is often limited by the condition at scene.At present, bypassed and drained using flow cell, while efficiently against the problem of above, also produced The problem of some are new is given birth to：Original water volume flow rate is excessive, and measurement sensing element that may be to electrode produces certain impact, adds Quick-wearing, reduce working life.And, in the current water of continuous speed change, circuit electric field is also constantly changing electrode again, draws Cause the unstable of measurement data.

Utility model content

The technical problems to be solved in the utility model is the above-mentioned deficiency for the prior art, there is provided it is a kind of simple in structure, Integration degree is high, can effectively improve the four parameter water-quality measuring device of open type of measurement accuracy.

The technical solution of the utility model is such：A kind of four parameter water-quality measuring device of open type, including detection electricity Pole, further includes horizontally disposed moveable open type bracket, on the bracket it is integrally disposed have can at least accommodate an institute State detecting electrode flow cell and by detected water sample be drained in the flow cell and the peristaltic pump of controllable detected water sample flowing with And the control device of the control peristaltic pump start and stop；The flow cell both ends are respectively equipped with water inlet and water outlet, it is described into The position height at the mouth of a river is corresponding with the position height of outlet pipe in the peristaltic pump, and the position height of the water outlet is more than institute State the position height of the electrode tip of detecting electrode in flow cell.

As a further improvement, the water inlet pipe of described peristaltic pump one end is equipped with leads to the peristaltic pump by detected water sample Interior drainage tube, correspondingly, the water outlet of described flow cell one end is equipped with the drainpipe for discharging detected water sample, described goes out The pipe jointer that the two is plugged into is equipped between the mouth of a river and drainpipe.

Further, the integrated form module that the flow cell is arranged horizontally, is equipped with four use above the flow cell In the electrode hole for installing the detecting electrode, also, it is equipped with the flow cell and connects and can accommodate tested with the electrode hole The fluid cavity of water sample.

Further, each electrode hole on the flow cell, which is equipped with, is connected the detecting electrode with the flow cell Electrode cover admittedly.

Further, described bracket one end is additionally provided with supporting rack, and the supporting rack, which is equipped with, will be located at the bracket Interior drainage tube fixes the pipe jointer plugged on the supporting rack.

Further, the screw hole for fixing whole measuring device is additionally provided with the bracket.

Beneficial effect

The utility model compared with prior art, has the following advantages：

1st, the utility model obtains the detected water sample of at the uniform velocity normal pressure using peristaltic pump, and the work of stabilization is provided for measuring electrode Make environment, be allowed to be in optimal working status, improve the precision of measurement, avoid due between detected water sample and measuring electrode Fluid impact, the abrasion to electrode measurement element, extends the working life of electrode；

2nd, the peristaltic pump of the utility model can draw remote detected water sample, allow measuring device away from scene Installed at adverse circumstances, stopped abundant working space with a line scene for follow-up measuring device, avoided electrode cable long And measurement accuracy is influenced, set without specially changing production, suitable for different industries and different working environments；

3rd, for the utility model by integrated flow cell, supporting four kinds of different laboratory electrodes, it is same to reach four parameters When the purpose that measures, also, the electrode of flow cell can share a frame of reference, without separately putting reference electrode, substantially reduce Measurement difficulty and measurement cost.

Brief description of the drawings

Fig. 1 is the systematic schematic diagram of the utility model；

Fig. 2 is the dimensional structure diagram of the utility model；

Fig. 3 is the cross-section structure enlarged diagram of flow cell in the utility model.

Wherein：1- detecting electrodes, 2- brackets, 3- flow cells, 4- peristaltic pumps, 5- control devices, 6- water inlets, 7- water outlets Mouth, 8- drainage tubes, 9- drainpipes, 10- electrode holes, 11- fluid cavitys, 12- electrodes cover admittedly, 13- supporting racks, 14- screw holes, 15- pipe Road connector.

Embodiment

Specific embodiment in below in conjunction with the accompanying drawings is described further the utility model.

Refering to Fig. 1-3, a kind of four parameter water-quality measuring device of open type of the utility model, which is to pass through electricity Chemical electrode method measures the component of detected water sample, it includes detecting electrode 1, be universal laboratory electrodes, further include level The open type bracket 2 of arrangement, is moveable tablet, can be moved according to the position actually measured, be easily installed various instruments, It is integrally disposed on bracket 2 to have the flow cell 3 that at least accommodate a detecting electrode 1 and detected water sample is drained to the flow cell 3 The peristaltic pump 4 of interior and controllable detected water sample flowing and the control device 5 for controlling 4 start and stop of peristaltic pump, flow cell 3, peristaltic pump 4 And control device 5 is fixedly mounted on carrier 2, allow their moving and move together with bracket 2, it is easy to carry While, it can also avoid them from shaking in measurement and detected water sample is produced fluctuation, so that measurement accuracy is reduced, its In, peristaltic pump 4 comes with water inlet pipe and outlet pipe, its flow cell 3 is connected by pipeline with the water inlet pipe of peristaltic pump 4, control dress Put and control circuit is equipped with 5, is externally provided with start-stop button, and be connected by conducting wire with peristaltic pump 4, detecting electrode 1 is plugged on circulation The top in pond 3, and be connected by conducting wire with follow-up measuring device, to handle data；Set respectively at the both ends of flow cell 3 There are water inlet 6 and water outlet 7, flow cell 3 is passed in and out for detected water sample, wherein, the position height of water inlet 6 in peristaltic pump 4 with going out The position height of water pipe is corresponding, avoids producing difference in height between peristaltic pump 4 and flow cell 3 and making detected water sample produce pressure Difference, the position height of water outlet 7 are more than the position height of the electrode tip of detecting electrode 1 in flow cell 3, flow through flow cell 3 Detected water sample keeps contacting with the electrode tip of detecting electrode 1 all the time, ensures that electrode is in normal working status, the utility model Measuring device, when peristaltic pump 4 is run, detected water sample flows through flow cell 3 with uniform flow velocity, normal work water pressure, warp The water outlet 7 for crossing flow cell 3 is discharged；When peristaltic pump 4 stops, water sample is isolated in pump line, and detected water sample then stops entering Flow cell 3, normal state is in the electrode of flow cell 3, and from the influence of exterior tested water body change, i.e. peristaltic pump 4 rises To the effect of protection detecting electrode 1, in actual use, the rotating speed of peristaltic pump 4 should be maintained at 41ml/min, to ensure tested water The normal activity of various components to be measured in sample.The utility model obtains the detected water sample of at the uniform velocity normal pressure by peristaltic pump 4, to survey Measure electrode and stable working environment is provided, be allowed to be in optimal working status, improve the precision of measurement, avoid due to tested Fluid impact between water sample and electrode, the abrasion to electrode measurement element, extends the working life of electrode.

In the present embodiment, drainage tube detected water sample led in peristaltic pump 4 is equipped with the water inlet pipe of 4 one end of peristaltic pump 8, drainage tube 8 can be grown to 20~50m, allow the measuring device of the utility model in the place peace away from live adverse circumstances Dress, abundant working space has been stopped for follow-up measuring device with a line scene, is avoided electrode cable long and is influenced measurement essence Degree, is set without specially changing production, suitable for different industries and different working environments；Correspondingly, in 3 one end of flow cell Water outlet 7 be equipped with the drainpipe 9 for discharging detected water sample, the water inlet of the other end is equipped with connecting tube, meanwhile, in water outlet The pipe jointer 15 that the two is plugged into is equipped between mouth 7 and drainpipe 9 and between water inlet 6 and connecting tube, pipeline connects Connect device 15 to be fixed on flow cell 3 by seal, connecting tube and drainpipe 9 utilize the rubber case built in it to pipe jointer 15 tightenings,, can be with this way, by the way that drainpipe 9 is plugged on pipe jointer 15 easy to dismounting, cleaning, extension of component etc. Used water sample is drained into rhone or is back to water sample source, device is outer to be caused to corrode to instrument in order to avoid spilling.

In the present embodiment, integrated form module that its flow cell 3 is arranged horizontally makes the detected water sample to circulate in pond 3 It is still the fluid of slow voltage stabilizing, further ensures that measurement accuracy, is integrated above the flow cell 3 and be equipped with four for installing inspection The electrode hole 10 of electrode 1 is surveyed, also, is equipped with the flow cell 3 and is connected with electrode hole 10 and the fluid of detected water sample can be accommodated Chamber 11, its fluid cavity 11 and electrode hole 10 are perpendicular, and its axial line and the water inlet 6 of flow cell 3 and the axle center of water outlet 7 Line coincides, and each electrode hole 10 on flow cell 3 is equipped with covers 12 admittedly by detecting electrode 1 with the electrode that flow cell 3 is connected, Detecting electrode 1 is plugged on electrode and covers admittedly on 12, its electrode covers 12 intracavity diameters between 3-16mm admittedly, can accommodate different type Detecting electrode 1 with reach detection four kinds of different water quality parameters, meanwhile, the detecting electrode 1 on flow cell 3 can share one Frame of reference, such as in four parameter measurements of 1xpH, 3x ion, 3 ion selection working electrodes can share a compound pH The frame of reference of electrode, without separately putting reference electrode, greatly reduces measurement difficulty and measurement cost.

In the above embodiments, the length of drainage tube 8 may span across longer distance, therefore, for the ease of installation, in bracket 2 one end is equipped with the supporting rack 13 for fixing drainage tube 8, is additionally provided with supporting rack 13 and consolidates the drainage tube 8 in bracket 2 Surely plug into the pipe jointer 15 on supporting rack 13, wherein, pipe jointer 15 is fixed on carrier 2 by seal, is drawn Flow tube 8 is tightened realization by the rubber case built in it and is fixed on pipe jointer 15, can so make a part for drainage tube 8 In bracket 2, another part can be needed according to scene, freely be plugged into outside bracket 2；Being additionally provided with carrier 2 will be whole Whole measuring device, any one place can be detachably mounted to by bolt by the screw hole 14 that a measuring device is fixed, Easy to design and installation.

Above-described is only the preferred embodiment of the utility model, it should be pointed out that is come for those skilled in the art Say, on the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these are all without this reality of influence With the effect and practical applicability of new implementation.

Claims (6)

1. a kind of four parameter water-quality measuring device of open type, including detecting electrode (1), it is characterised in that further include horizontally disposed Moveable open type bracket (2), on the bracket (2) it is integrally disposed have can at least accommodate a detecting electrode (1) flow cell (3) and detected water sample is drained in the flow cell (3) and the peristaltic pump (4) of controllable detected water sample flowing And the control device (5) of control peristaltic pump (4) start and stop；Described flow cell (3) both ends be respectively equipped with water inlet (6) and Water outlet (7), the position height of the water inlet (6) is corresponding with the position height of outlet pipe in the peristaltic pump (4), described The position height of water outlet (7) is more than the position height of the electrode tip of the flow cell (3) interior detecting electrode (1).

2. four parameter water-quality measuring device of open type according to claim 1, it is characterised in that the peristaltic pump (4) one The water inlet pipe at end is equipped with the drainage tube (8) led to detected water sample in the peristaltic pump (4), correspondingly, the flow cell (3) The water outlet (7) of one end is equipped with the drainpipe (9) for discharging detected water sample, between the water outlet (7) and drainpipe (9) Equipped with the pipe jointer (15) that the two is plugged into.

3. four parameter water-quality measuring device of open type according to claim 1, it is characterised in that the flow cell (3) The integrated form module being arranged horizontally, is equipped with four electrodes for being used to install the detecting electrode (1) above the flow cell (3) Hole (10), also, be equipped with the flow cell (3) and connected with the electrode hole (10) and the fluid cavity of detected water sample can be accommodated (11)。

4. four parameter water-quality measuring device of open type according to claim 3, it is characterised in that on the flow cell (3) Each electrode hole (10) be equipped with and cover the detecting electrode (1) (12) admittedly with the electrode that the flow cell (3) is connected.

5. four parameter water-quality measuring device of open type according to claim 2, it is characterised in that the bracket (2) one End is additionally provided with supporting rack (13), and the supporting rack (13), which is equipped with, connects drainage tube (8) fixation in the bracket (2) Refute the pipe jointer (15) on the supporting rack (13).

6. the four parameter water-quality measuring device of open type according to any one in claim 1-5, it is characterised in that described Bracket (2) on be additionally provided with the screw hole (14) for fixing whole measuring device.