CN204694523U - A kind of cadmium pole reduction device - Google Patents

A kind of cadmium pole reduction device Download PDF

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Publication number
CN204694523U
CN204694523U CN201520430437.9U CN201520430437U CN204694523U CN 204694523 U CN204694523 U CN 204694523U CN 201520430437 U CN201520430437 U CN 201520430437U CN 204694523 U CN204694523 U CN 204694523U
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CN
China
Prior art keywords
liquid storage
storage cylinder
reduction device
filling tube
cadmium
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Expired - Fee Related
Application number
CN201520430437.9U
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Chinese (zh)
Inventor
卓丽飞
蔡惠文
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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Priority to CN201520430437.9U priority Critical patent/CN204694523U/en
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Publication of CN204694523U publication Critical patent/CN204694523U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of cadmium pole reduction device, belongs to technical field of experiment equipment.This cadmium pole reduction device, comprise the liquid storage cylinder with hollow cavity, described liquid storage cylinder top and bottom all have opening, the upper end open place of described liquid storage cylinder is provided with stopper, when the upper end open place of stopper plug at liquid storage cylinder, sealing state is between stopper and the upper end open of liquid storage cylinder, the lower end of described liquid storage cylinder is fixed with filling tube, the upper end of described filling tube is communicated with the lower ending opening of liquid storage cylinder, the lower end of described filling tube and the inlet communication of valve, the outlet of described valve is connected with drain pipe, be connected by a connecting pipe between the top of described liquid storage cylinder and drain pipe, described liquid storage cylinder, filling tube, drain pipe and connecting pipe are made by transparent material.Flow speed stability, easy to use, directly perceived, accuracy advantages of higher when the utility model has an experiment.

Description

A kind of cadmium pole reduction device
Technical field
The utility model belongs to technical field of experiment equipment, relates to a kind of cadmium pole reduction device.
Background technology
Cadmium pole reduction device is the experimental facilities surveying nitrate for cadmium pole process, current cadmium pole reduction device, mainly include the storage liquid funnel of band kapillary, connect plug, cadmium post and cadmium post glass tube, there is a J-shaped fluid kapillary lower end of cadmium post glass tube, has at least one to reinforce connecting column between the outer wall that the outer wall of cadmium post glass tube parallels with J-shaped fluid kapillary.
When the analysis design mothod of the nitrate content in water sample is carried out in laboratory, according to assay method requirement during reduction nitrate, the mixed solution of water sample and ammonia buffer solution is needed to leave in cadmium pole reduction device, existing cadmium pole reduction device, in experimentation, the flow velocity of mixed solution is unstable, and then make mixed solution inconsistent through the duration of contact of cadmium copper particle, when the mixed solution crossed with cadmium copper particle contacts is added dropwise in water sample to be measured, the nitrate reduction in water sample to be measured can be caused to be the inconsistent phenomenon of the percent reduction of nitrite, precision and the accuracy technical indicator of experiment are difficult to up to standard.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of cadmium pole reduction device, and this cadmium pole reduction device can ensure that liquid storage cylinder internal pressure is constant, thus makes the flow speed stability of mixed solution, improves the accuracy of experiment.
The purpose of this utility model realizes by following technical proposal: a kind of cadmium pole reduction device, comprise the liquid storage cylinder with hollow cavity, described liquid storage cylinder top and bottom all have opening, the upper end open place of described liquid storage cylinder is provided with stopper, when the upper end open place of stopper plug at liquid storage cylinder, sealing state is between stopper and the upper end open of liquid storage cylinder, the lower end of described liquid storage cylinder is fixed with filling tube, the upper end of described filling tube is communicated with the lower ending opening of liquid storage cylinder, the lower end of described filling tube and the inlet communication of valve, the outlet of described valve is connected with drain pipe, be connected by a connecting pipe between the top of described liquid storage cylinder and drain pipe, described liquid storage cylinder, filling tube, drain pipe and connecting pipe are made by transparent material.
In above-mentioned cadmium pole reduction device, described transparent material is glass.
In above-mentioned cadmium pole reduction device, described liquid storage cylinder is funnel-form or cylindric.
In above-mentioned cadmium pole reduction device, the outer wall of described liquid storage cylinder is provided with the scale for showing liquid volume in liquid storage cylinder.
In above-mentioned cadmium pole reduction device, the unit of described scale is milliliter, and the volume differences between adjacent two scales is 10 milliliters.
In above-mentioned cadmium pole reduction device, described valve is retaining valve.
Compared with prior art, the utility model has the following advantages:
1, by the upper end open place of liquid storage cylinder, sealing arranges stopper, and be connected by a connecting pipe between the top and drain pipe of liquid storage cylinder, make the invariablenes pressure of liquid in liquid storage cylinder, make the mixed solution flow speed stability through filling tube, ensure that the duration of contact of the cadmium copper particle in mixed solution and filling tube is basically identical, finally reaching nitrate reduction is that the percent reduction of nitrite is basically identical, improves precision and the accuracy of experiment.
2, scale is set on the outer wall of liquid storage cylinder, the volume of the mixed solution in liquid storage cylinder can be judged intuitively, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, liquid storage cylinder; 2, scale; 3, stopper; 4, connecting pipe; 5, filling tube; 6, cadmium copper particle; 7, valve; 8, drain pipe; 9, liquid outlet.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of cadmium pole reduction device, comprise the liquid storage cylinder 1 with hollow cavity, described liquid storage cylinder 1 top and bottom all have opening, the upper end open place of described liquid storage cylinder 1 is provided with stopper 3, when stopper 3 fills in the upper end open place at liquid storage cylinder 1, sealing state is between the upper end open of stopper 3 and liquid storage cylinder 1, stopper 3 can avoid the introduced contaminantses such as dust to enter liquid storage cylinder 1, in guarantee liquid storage cylinder 1, mixed solution is clean, also assures that in addition in liquid storage cylinder 1 and be in air-tight state, the lower end of described liquid storage cylinder 1 is fixed with filling tube 5, the upper end of described filling tube 5 is communicated with the lower ending opening of liquid storage cylinder 1, the lower end of described filling tube 5 and the inlet communication of valve 7, cadmium copper particle is filled in filling tube 5 when testing, for reacting with the mixed solution in liquid storage cylinder 1, the outlet of described valve 7 is connected with drain pipe 8, the free end of described drain pipe 8 is provided with liquid outlet 9, the diameter of described liquid outlet 9 is less than or equal to the cross-sectional diameter of drain pipe 8, be connected by a connecting pipe 4 between the top of described liquid storage cylinder 1 and drain pipe 8, described liquid storage cylinder 1, filling tube 5, drain pipe 8 and connecting pipe 4 are made by transparent material, convenient observation.
Specifically, described transparent material is glass, can certainly be transparent plastics.
Specifically, described liquid storage cylinder 1 is in funnel-form or cylindric.
Specifically, the outer wall of described liquid storage cylinder 1 is provided with the scale 2 for showing liquid volume in liquid storage cylinder 1, the unit of described scale 2 is milliliters, and the volume differences between adjacent two scales is 10 milliliters.The outer wall of liquid storage cylinder 1 is arranged the convenient situation of change of observing mixed solution in liquid storage cylinder 1 of scale 2, be conducive to the accuracy and the reliability that improve experimental data.
Specifically, described valve 7 is retaining valves, and the effect of retaining valve 7 only allows mixed solution to flow to drain pipe 8 from filling tube 5, has the effect preventing suck-back.
Of the present utility model I see: before experiment, valve-off 7, open stopper 3, cadmium copper particle 6 is filled into filling tube 5, then according to the ratio of requirement of experiment, water sample and ammonia buffer solution are carried out being mixed to form mixed solution, this cadmium pole reduction device is vertically placed, then mixed solution is poured in liquid storage cylinder 1, concrete needs as mixed solution are how many, fixed depending on concrete requirement of experiment, jam-pack stopper 3, now open valve 7, mixed solution after cadmium copper particle 6 successively through valve 7 and drain pipe 8, last outflow from liquid outlet 9, liquid outlet 9 is inserted in the container holding water sample to be measured, the water sample to be measured contact but liquid outlet 9 is got along well, in experimentation, the volume change situation of mixed solution can be observed by the scale 2 on liquid storage cylinder 1 outer wall, the flow of mixed solution can be controlled by valve 7, because drain pipe 8 is communicated with by connecting pipe 4 with liquid storage cylinder 1, so the air pressure in liquid storage cylinder 1 is consistent with the air pressure in valve 7 exit all the time, so the interior invariablenes pressure of liquid of liquid storage cylinder 1, from the constant flow rate of the mixed solution that valve 7 flows out, therefore the duration of contact of mixed solution and cadmium copper particle 6 is basically identical, improve precision and the accuracy of experiment.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.

Claims (6)

1. a cadmium pole reduction device, comprise the liquid storage cylinder (1) with hollow cavity, it is characterized in that, described liquid storage cylinder (1) top and bottom all have opening, the upper end open place of described liquid storage cylinder (1) is provided with stopper (3), when stopper (3) plug is when the upper end open place of liquid storage cylinder (1), sealing state is between the upper end open of stopper (3) and liquid storage cylinder (1), the lower end of described liquid storage cylinder (1) is fixed with filling tube (5), the upper end of described filling tube (5) is communicated with the lower ending opening of liquid storage cylinder (1), the lower end of described filling tube (5) and the inlet communication of valve (7), the outlet of described valve (7) is connected with drain pipe (8), be connected by a connecting pipe (4) between the top of described liquid storage cylinder (1) and drain pipe (8), described liquid storage cylinder (1), filling tube (5), drain pipe (8) and connecting pipe (4) are made by transparent material.
2. cadmium pole reduction device according to claim 1, is characterized in that, described transparent material is glass.
3. cadmium pole reduction device according to claim 2, is characterized in that, described liquid storage cylinder (1) is in funnel-form or cylindric.
4. the cadmium pole reduction device according to claim 1 or 2 or 3, is characterized in that, the outer wall of described liquid storage cylinder (1) is provided with the scale (2) for showing liquid storage cylinder (1) interior liquid volume.
5. cadmium pole reduction device according to claim 4, is characterized in that, the unit of described scale (2) is milliliter, and the volume differences between adjacent two scales is 10 milliliters.
6. cadmium pole reduction device according to claim 5, is characterized in that, described valve (7) is retaining valve.
CN201520430437.9U 2015-06-19 2015-06-19 A kind of cadmium pole reduction device Expired - Fee Related CN204694523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520430437.9U CN204694523U (en) 2015-06-19 2015-06-19 A kind of cadmium pole reduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520430437.9U CN204694523U (en) 2015-06-19 2015-06-19 A kind of cadmium pole reduction device

Publications (1)

Publication Number Publication Date
CN204694523U true CN204694523U (en) 2015-10-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105784916A (en) * 2016-03-02 2016-07-20 国家海洋局第三海洋研究所 Filling method for cadmium column used for water nitrate determination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105784916A (en) * 2016-03-02 2016-07-20 国家海洋局第三海洋研究所 Filling method for cadmium column used for water nitrate determination

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151007

Termination date: 20160619