CN2079295U

CN2079295U - Strirring type turbidimetric chlorine residue composite trough analysis

Info

Publication number: CN2079295U
Application number: CN 90217075
Authority: CN
Inventors: 陈佩华
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-27
Filing date: 1990-07-27
Publication date: 1991-06-19

Abstract

The utility model relates to a composite trough analysis used for measuring the turbidimetric chlorine residue content, belonging to a content measuring device. Four circular discs for measuring a trough analysis frame are arranged on the centre of a machine body whose surroundings are provided with light proof walls; a light source box, the phototube box of a 90 DEG scattering light and the phototube box of a transmission light are arranged on the partition plate outside of the light proof walls; the light source box is vertical to the phototube box of the 90 DEG scattering light and is in a line with the phototube box of the transmission light; a rotating disc driven by a direct current motor is arranged on the lower part of the partition plate, and a column-typed magnet is arranged on the rotating disc; an agitating metal rod is arranged in the colorimetric vessel which is on the trough analysis frame. The utility model overcomes the defects that the water sample is of easy sedimentation, the linearity is poor, and the measuring result is inaccurate and untruthful in the existing measuring device.

Description

Strirring type turbidimetric chlorine residue composite trough analysis

The utility model relates to a kind of turbidity chlorine residual measurement groove that is used for water analysis, belongs to assay equipment.

Make it muddy because of containing a large amount of suspensions and colloid in the surface water, turbidity generally is meant and contains one milligram of turbidity that refining porcelain earth produced in one liter of pure water, and its measurement unit was for once, and the instrument that measures turbidity is referred to as nephelometer.Its assay method is that water sample and turbidity titer are compared with nephelometer, it is water sample directly to be put in carry out photoelectricity in the vessel than turbid that nephelometer is in the past measured groove, but because analysis operation time generally needs 1～2 minute approximately, thereby cause in the water impurity such as suspension and colloid precipitation under the static situation of water, to occur, time is longer, precipitate many more, the turbidity of water sample is reduced, it is untrue inaccurate measuring the turbidity result who measures in the groove like this, existing in addition mensuration groove function singleness, only turbidity is measured, utilization factor is lower, when being unsuitable for field measuring to the multi-functional requirement of determining instrument.

The purpose of this utility model is to provide a kind of mensuration process simply accurate, does not precipitate, and is simple in structure, easy to use, both can measure turbidity, can measure the high-precision measuring groove of chlorine residue again.

The purpose of this utility model is achieved in that it is by casing, disk mechanism, measure truss mechanism, compositions such as photoelectricity mechanism and electromagnetic stirr mechanism, its disk mechanism is by the disk vertical rod, hand is turned round, form with pilot pin, vertical rod is loaded on disc centre, the lower end has bearing, disk can be rotated relative to casing, hand is turned round and is loaded on the vertical rod upper end, rotate in order to driver plate, pilot pin is that a top has roller, after connect sleeve pipe, be equipped with the expansion link of spring in it, and cooperate with four equidistant pilot holes on the light separating wall, realization disk location, it is measured truss mechanism and comprises that four are measured truss, cuvette and movable clip, each is measured truss and has three optical windows, cuvette places to be measured in the truss, and be fixed in movable clip and measure on the truss, measure truss for its four and be packed on the same circumference of disk, and per two angles of measuring the center line of truss bottom surfaces are 90 ° perpendicular to disk diameter.Its photoelectricity mechanism comprises light separating wall 12,13,90 ° of scattered light photoelectricity bobbin carriages of light-source box and transmitted light photoelectricity bobbin carriage, corresponding disk is provided with all light separating walls on the division board of casing, corresponding three optical windows measuring truss have unthreaded hole on it, corresponding unthreaded hole fixed installation light-source box on the division board in the light separating wall outside, 90 ° of scattered light photoelectricity bobbin carriages and transmitted light photoelectricity bobbin carriage.Its electromagnetic stirr mechanism comprises DC micromotor, rotating disc, column type magnet and stirs Metallic rod, direct current generator is satisfied with on the base plate of disk or division board below, column type magnet symmetry is contained on the rotating disc, and rotating disc is satisfied with on the direct current generator output shaft, places in the cuvette and stir Metallic rod.Principle of work of the present utility model is: water sample to be measured is contained to be placed in the cuvette measure the truss internal fixation, and will stir Metallic rod and be placed in the cuvette, connect light-source box and 90 ° of scattered light photoelectricity bobbin carriages and transmitted light photoelectricity bobbin carriage power supply, turn round with hand twisting vertical rod hand then, disk rotates, make the optical window alignment light source case of measuring truss, 90 ° of scattered light photoelectricity bobbin carriages and transmitted light photoelectricity bobbin carriage, this moment, pilot pin was located disk automatically, because on the cuvette that light source irradiation is made to optical glass, make it to reflex to 90 ° of scattered light photoelectricity bobbin carriages and transmitted light photoelectricity bobbin carriage, and obtain photosignal be transported to show and analytic system in, provide the turbidity value or the chlorine content of the water sample of surveying, twisting hand then turns round and forwards disk to the next cuvette water sample in the truss of measuring, detect successively, in whole testing process, direct current generator driven rotary dish rotates, column type magnet on it rotates the generation rotating magnetic field thereupon, make the stirring Metallic rod in the cuvette rotate, thereby the disorderly motion suspension of liquid water sample is not precipitated along magnetic direction.

Advantage of the present utility model is: 1, owing to introduced electromagnetic stirr mechanism, make in the cuvette water sample when detecting, not because of the deposited phenomenon that suspends appears in transfixion, measured value accurately, true; 2, the utility model has been introduced 90 ° of scattered light photoelectricity bobbin carriages, can measure water sample with astigmatism and transmitted light simultaneously, can both can measure turbidity respectively with these two kinds of light measurements again, can measure chlorine residue again, has increased functions of the equipments, has improved utilization factor; 3, the utility model will be measured truss and be fixed on the disk grouping mensuration convenience, simple structure; When 4, the utility model adopts the transmitted light colorimetric, each measures groove with two cuvettes, owing to turbidity does not precipitate, and the influence when just having overcome turbidity value to determination of colority.

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is surveyed the chlorine residue scheme of installation for light transmission.

Accompanying drawing 3 is the electromagnetic stirr fundamental diagram.

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1, casing is by base plate 21, division board 16 and panel 11 are formed, division board 16 centers are provided with disk 2, disk 2 centers install vertical rod 8, its upper end is installed circular hand and is turned round 9, bearing is equipped with in the lower end, it is connected with base plate 21, disk 2 can rotate relative to casing, pilot pin 10 is loaded on the disk 2, it is that roller is equipped with on a top, the other end is equipped with sleeve, be equipped with the expansion link of spring in the sleeve, and cooperate with four pilot holes on the light separating wall 12, realize the location of disk 2, be equipped with four on the disk 2 same circumference and measure truss 1, it is measured truss 1 symmetry and installs and vertical disk 2 diameters, each is measured on the truss 1 and has three rectangle optical windows, the cylindrical shape light separating wall 12 that is provided with in disk 2 outsides, have three unthreaded holes on it, the light-source box of installing on the corresponding division board 16 in its position 13,90 ° of scattered light photoelectricity bobbin carriages 14 and transmitted light photoelectricity bobbin carriage etc., wherein light-source box 13 and transmitted light photoelectricity bobbin carriage 14 are on same straight line, light-source box 13 and 90 ° of scattered light photoelectricity bobbin carriages 15 are orthogonal, on the same circumference of cylindrical shape light separating wall, have four equal-sized pilot holes, the spacing of four pilot holes equates, direct current generator 19 is installed on the base plate 21 of division board 16 bottoms, rotating disc 18 is housed on its output shaft, symmetry is installed two column type magnetic patch 19 on this rotating disc 18, motor 17 rotates and drives rotating disc 18 rotations, form rotating magnetic field, the utility model is when detecting, water sample is packed in the cuvette 7, and will stir Metallic rod 20 and place in the cuvette 7, fix by movable clip 6, by the effect of rotating magnetic field, Metallic rod 20 is stirred in cuvette 7, as carry out the test of water sample chlorine residue colorimetric, two cuvettes 7 of can packing in measuring truss 1 are simultaneously analyzed every group of water sample by transmitted light photoelectricity bobbin carriage, measure residual chlorine concentration.

Claims

1, the compound mensuration groove of a kind of stirring formula turbidity chlorine residue comprises casing, disk mechanism, measures truss mechanism, photoelectricity mechanism and electromagnetic stirr mechanism, it is characterized in that:

1.1, its disk mechanism comprises that disk 2, vertical rod 8, hand turn round 9 and pilot pin 10;

1.1.1, its vertical rod 8 is packed in disk 2 centers, bearing is equipped with in the lower end, and disk 2 can be rotated with respect to casing, the upper end is equipped with hand and is turned round;

1.1.2, its pilot pin 10 is loaded on the disk, is provided with four locating slots with light separating wall and matches, and is connected to sleeve pipe for the top has the roller rear portion, and the telescopic spring bar is housed in the sleeve pipe;

1.2, it measures truss mechanism and comprises that four are measured truss, cuvette 7 and movable clip 6;

1.2.1, its each measure truss 1 and have 3 optical windows 3,4,5;

1.2.2, cuvette 7 is loaded on and measures in the truss 1, and is fixing by movable clip 6;

1.2.3, its four measure truss 1 and be packed on the same circumference of disk 2 perpendicular to disk 2 diameters, and each measures 90 ° of the center line angles of truss 1 bottom surface;

1.3, its photoelectricity mechanism comprises light-source box 13,15,90 ° of scattered light fulgurite casees 14 of transmitted light photoelectricity bobbin carriage and light separating wall 12;

1.3.1,13,90 ° of scattered light photoelectricity bobbin carriages 14 of light-source box, transmitted light photoelectricity bobbin carriage 15 is installed on the division board 16, corresponding respectively three optical windows measuring truss 1 in its position;

1.3.2, corresponding disk 2 is provided with all light separating walls 12 on its division board 16, and 13,90 ° of scattered light photoelectricity casees 14 of corresponding light source case, transmitted light photoelectricity bobbin carriage 15 have three windows;

1.4, its electromagnetic stirr system comprises DC micromotor 17, rotating disc 18, column type magnet 19 and stirs Metallic rod 20;

1.4.1, its two column type magnet 19 symmetries are loaded on the rotating disc 18, rotating disc 18 is installed on the output shaft of direct current generator 17;

1.4.2, its direct current generator is located on the box bottom 21 of disk 2 or division board 16 belows;

1.4.3, it stirs Metallic rod 20 and places in the cuvette 7.