CN208520714U - A kind of chemical method BOD analyzer - Google Patents
A kind of chemical method BOD analyzer Download PDFInfo
- Publication number
- CN208520714U CN208520714U CN201820734230.4U CN201820734230U CN208520714U CN 208520714 U CN208520714 U CN 208520714U CN 201820734230 U CN201820734230 U CN 201820734230U CN 208520714 U CN208520714 U CN 208520714U
- Authority
- CN
- China
- Prior art keywords
- reaction chamber
- chemical method
- reaction
- bod analyzer
- metering pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000126 substance Substances 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 77
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 16
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000003760 magnetic stirring Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229920002978 Vinylon Polymers 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model provides a kind of chemical method BOD analyzer, including shell, the enclosure interior is equipped with the first reaction chamber, carbon dioxide absorption component, differential manometer, solenoid valve, the second reaction chamber, reaction cup and Reciprocating Metering Pump, and the computer for control.In the case of electrolysis stops when the chemical method BOD analyzer of the utility model is for the measurement BOD value of coulomb method in the prior art, the oxygen generated still supplies culture bottle, and the larger problem of measurement result deviation carries out the measurement of water body BOD value using chemical method.The chemical method BOD analyzer of the utility model passes through gas pressure in detection system at any time, and the switch of Reciprocating Metering Pump is turned on or off in time, accurate control oxygen gas production quantity and the amount for participating in biochemical culture reaction, keep measurement result more accurate, apparatus structure is simple, and it is convenient to operate, and can be checked, further make whole system testing result more accurate, easy to carry and detection.
Description
Technical field
The utility model belongs to testing equipment field, is related to water quality detection equipment, and in particular to a kind of chemical method BOD measurement
Instrument.
Background technique
BOD: biochemical oxygen demand (BOD) or bod (referring generally to biochemical oxygen demand on the five) indicate that Organic substance in water etc. needs
One overall target of oxygen contamination content of material.Illustrate biochemical action progress oxygenolysis of the Organic substance in water due to microorganism,
The total quantity of consumed oxygen in water when being allowed to inorganization or aerifying.Under normal conditions refer to that water sample is full of to be completely closed
In dissolved oxygen bottle, certain number of days is cultivated 20 DEG C of dark places, the mass concentration of dissolved oxygen in the water sample of front and back is cultivated in measurement respectively, by
The difference of the mass concentration of culture front and back dissolved oxygen, is calculated the dissolved oxygen content of every liter of sample consumption, is indicated in the form of BODX.Its unit
Ppm or mg/litre indicate.Its value is higher to illustrate that organic pollutants matter is more, pollutes also more serious.
General organic matter can be decomposed by Institute of Micro-biology, but need to consume when organic compound in microorganism decomposition water
Oxygen, if the dissolved oxygen in water is not enough to supply the needs of microorganism, water body is at pollutional condition.
In order to make detection data have a comparativity, one time cycle of general provision, during this period of time, at a certain temperature
With water sample culture microorganism, and oxygen in water Expenditure Levels are measured, generally use five day time, referred to as five days biochemical aerobic
Amount, is denoted as BOD5.Numerical value is bigger, and the organic matter for proving to contain in water is more, therefore pollutes also more serious.
There are certain hysteresis qualitys in measurement for the coulomb method BOD analyzer of the prior art, i.e., when being electrolysed stopping, before
Generated oxygen is still in supply culture bottle, so that influencing measurement result.
Summary of the invention
For the deficiencies in the prior art, the purpose of the utility model is to provide a kind of chemical method BOD measurements
Instrument, in the case of electrolysis stops when solving coulomb method measurement BOD value in the prior art, the oxygen generated still supplies culture
Bottle, the larger problem of measurement result deviation.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved:
A kind of chemical method BOD analyzer, including shell, bottom is equipped with electromagnetic heating blender in the shell, electricity
First reaction chamber is removably installed on magnetic heating stirrer；
Reaction chamber sealing cover is installed at the top of first reaction chamber, dioxy is installed in the reaction chamber sealing cover
Change carbon absorption component；
The shell inner bottom surface is also equipped with the second reaction chamber, and second reaction chamber is connected to by sealing pipeline
First reaction chamber is equipped with high-precision electronic scale in second reaction chamber, can on the high-precision electronic scale
Disassembly is equipped with reaction cup, is fixedly installed with Reciprocating Metering Pump above the reaction cup；
Differential manometer and solenoid valve are also sequentially installed on pipeline between first reaction chamber and the second reaction chamber.
The utility model also has following technical characteristic:
Specifically, the electromagnetic heating blender includes subsidiary magnetic stirring bar and thermoprobe, the magnetic force
Stirring rod is placed in first reaction chamber with being not fixed, and it is close that the thermoprobe is fixedly installed in the reaction chamber
In capping, and go deep into inside the first reaction chamber.
Specifically, the carbon dioxide absorption component is the tubular structure that both ends are provided with intensive pore, inside filling two
Aoxidize carbon adsorbing material；The first reaction chamber is protruded into described carbon dioxide absorption component one end, the other end be connected smoothly in
Sealing pipeline.
Specifically, filling ceramic fiber cotton and sodium peroxide in the reaction cup, the Reciprocating Metering Pump is interior to be contained
There is the distilled water for being added dropwise into reaction cup.
Specifically, the pressure difference is calculated as U-shaped electromagnetism differential manometer.
Specifically, the shell is opaque.
Specifically, further including for controlling differential manometer, solenoid valve, electromagnetic heating blender and the Reciprocating Metering Pump
Computer, high-precision electronic scale, Reciprocating Metering Pump, differential manometer, solenoid valve and the thermoprobe and control computer used
Connection.
Compared with prior art, beneficial has the technical effect that the utility model
(I) the chemical method BOD analyzer of the utility model passes through gas pressure in detection system at any time, and in time open or
Person closes the switch of Reciprocating Metering Pump, and the accurate amount for controlling oxygen gas production quantity and participating in biochemical culture reaction makes to measure
As a result more accurate；
(II) the chemical method BOD analyzer of the utility model is using chemical method rather than electrochemical process carries out BOD detection, instrument
Device operation is more simple, and the chemical method BOD analyzer structure of the utility model is simple, easy to carry, placement and detection；
(III) the chemical method BOD analyzer of the utility model utilizes its structure, can also be checked, and further makes entire
System detection results are more accurate.
Detailed description of the invention
Fig. 1 is the side perspective structural schematic diagram of the utility model.
Fig. 2 is the overlooking structure diagram of the utility model.
The meaning of each label in figure are as follows: 1- shell, 2- electromagnetic heating blender, the first reaction chamber of 3-, 4- reaction chamber are close
Capping, 5- carbon dioxide absorption component, the second reaction chamber of 6-, 7- sealing pipeline, 8- high-precision electronic scale, 9- reaction cup, 10 is past
Compound metering pump, 11- differential manometer, 12- solenoid valve, 13- magnetic stirring bar, 14- thermoprobe.
Explanation is further explained in detail to the particular content of the utility model with reference to embodiments.
Specific embodiment
In compliance with the above technical solution, specific embodiment of the utility model is given below, it should be noted that this is practical new
Type is not limited to following specific embodiments, and it is practical new that all equivalent transformations made on the basis of the technical solutions of the present application each falls within this
The protection scope of type.The utility model is described in further details below with reference to embodiment.
Embodiment:
The present embodiment provides a kind of chemical method BOD analyzer, as shown in Figure 1 to Figure 2, including shell 1, bottom in shell 1
Electromagnetic heating blender 2 is installed, the first reaction chamber 3 is removably installed on electromagnetic heating blender 2；
Reaction chamber sealing cover 4 is installed at the top of first reaction chamber 3, carbon dioxide absorption is installed in reaction chamber sealing cover 4
Component 5；
1 inner bottom surface of shell is also equipped with the second reaction chamber 6, and the second reaction chamber 6 is connected to the first reaction by sealing pipeline 7
Room 3 is equipped with high-precision electronic scale 8 in second reaction chamber 6, is removably equipped with reaction cup 9 on high-precision electronic scale 8, instead
The top of cup 9 is answered to be fixedly installed with Reciprocating Metering Pump 10；
Differential manometer 11 and solenoid valve 12 are also sequentially installed on pipeline between first reaction chamber 3 and the second reaction chamber 6.
As a kind of concrete scheme of the utility model, the electromagnetic heating blender 2 of the present embodiment includes subsidiary magnetic force
Stirring rod 13 and thermoprobe 14, magnetic stirring bar 13 are placed in the first reaction chamber 3 with being not fixed, the fixed peace of thermoprobe 14
Loaded on reaction chamber sealing cover 4, and go deep into inside the first reaction chamber 3.
As a kind of concrete scheme of the utility model, the carbon dioxide absorption component 5 of the present embodiment is provided with close for both ends
Collect the tubular structure of pore, internal filling arbon dioxide adsorbent material；The first reaction chamber is protruded into 5 one end of carbon dioxide absorption component
3, the other end is connected smoothly in sealing pipeline 7.
As a kind of concrete scheme of the utility model, ceramic fiber cotton and peroxide are filled in the reaction cup 9 of the present embodiment
Change sodium, the distilled water for being added dropwise into reaction cup 9 is filled in the Reciprocating Metering Pump 10.
As a kind of concrete scheme of the utility model, the differential manometer 11 of the present embodiment is U-shaped electromagnetism differential manometer.
As a kind of concrete scheme of the utility model, the shell 1 is opaque.
As a kind of concrete scheme of the utility model, the present embodiment further include for control differential manometer 11, solenoid valve 12,
The computer of electromagnetic heating blender 2 and Reciprocating Metering Pump 10, high-precision electronic scale 8, Reciprocating Metering Pump 10, differential manometer 11,
Solenoid valve 12 and thermoprobe 14 are connect with control computer used.Specific control method uses the control method of this field routine
?.
The chemical method BOD analyzer of the present embodiment when in use, entire analyzer can be put into insulating box and be surveyed
It is fixed.
The detection of the chemical method BOD analyzer of the utility model is carried out by following steps:
Step 1: quantitative water sample to be measured is injected into the first reaction chamber 3, while being put into magnetic stirring bar 13.To titanium dioxide
Excess carbon dioxide absorbing material is filled in carbon absorption component 5, covers tightly reaction chamber sealing cover 4.The excessive addition into reaction cup 9
The sodium peroxide of ceramic fiber cotton cladding.By control launch computer electromagnetic heating blender 2, measured by thermoprobe 14,
And heating and stirring are controlled by computer, so that the water sample to be measured in the first reaction chamber 3 is stably held in 20 ± 1 DEG C.By control computer
Record the reading of the amount of water sample to be measured under original state, high-precision electronic scale 8；
Step 2: due to the effect of aerobic microbiological in the first reaction chamber 3, organic matter contained in water sample to be measured occurs
Oxygen degradation, consumes dissolved oxygen and releases carbon dioxide, the carbon dioxide absorption that carbon dioxide absorption component 5 will release, while the
The oxygen of one reaction chamber, 3 inner upper space dissolves in water sample to supplement the dissolved oxygen consumed, as a result makes to be in the first reaction chamber 3
Decompression state, this state are detected by differential manometer 11, upload to control computer, then drive Reciprocating Metering Pump by control computer
10 work, while solenoid valve 12 is opened, and the first reaction chamber 3 of oxygen supply sealing is generated by reaction, when in the first reaction chamber 3
When pressure recovery original state, pressure recovery controls Reciprocating Metering Pump 10 by control computer and stops working, and solenoid valve 12 is closed；
Step 3: under control computer control, step 2 repeats automatically, until pressure balance, no longer changes, controls
The reading of high-precision electronic scale 8 after the completion of computer record test；
Step 4: call oneself the difference of 8 reading according to front and back high accuracy battery, and according to chemical reaction 2Na2O2+2H2O=
4NaOH+O2The amount of ↑ the oxygen generated can mutually be applied to indicate the BOD value of water sample to be measured；
Step 5: removing the first reaction chamber 3 after detection, opens reaction chamber sealing cover 4.Use distilled water flushing first
Reaction chamber 3, and carbon dioxide absorption component 5 and carbon dioxide absorbing material and peroxide in reaction cup 9 are handled and removed respectively
Change sodium.
Claims (7)
1. a kind of chemical method BOD analyzer, including shell (1), which is characterized in that described shell (1) the interior bottom is equipped with electricity
Magnetic heating stirrer (2) is removably equipped with the first reaction chamber (3) on electromagnetic heating blender (2)；
It is equipped with reaction chamber sealing cover (4) at the top of first reaction chamber (3), installation in the reaction chamber sealing cover (4)
There are carbon dioxide absorption component (5)；
Described shell (1) inner bottom surface is also equipped with the second reaction chamber (6), and second reaction chamber (6) passes through sealing pipeline
(7) it is connected to first reaction chamber (3), is equipped with high-precision electronic scale (8) in second reaction chamber (6), it is described
High-precision electronic scale (8) on be removably equipped with reaction cup (9), be fixedly installed with above the reaction cup (9) past
Compound metering pump (10)；
Differential manometer (11) and electricity are also sequentially installed on pipeline between first reaction chamber (3) and the second reaction chamber (6)
Magnet valve (12).
2. chemical method BOD analyzer as described in claim 1, which is characterized in that the electromagnetic heating blender (2) includes
Subsidiary magnetic stirring bar (13) and thermoprobe (14), the magnetic stirring bar (13) are placed in described the with being not fixed
In one reaction chamber (3), the thermoprobe (14) is fixedly installed on the reaction chamber sealing cover (4), and gos deep into first
Reaction chamber (3) is internal.
3. chemical method BOD analyzer as described in claim 1, which is characterized in that the carbon dioxide absorption component (5) is
Both ends are provided with the tubular structure of intensive pore, internal filling arbon dioxide adsorbent material；The carbon dioxide absorption component (5)
One end is protruded into the first reaction chamber (3), and the other end is connected smoothly in sealing pipeline (7).
4. chemical method BOD analyzer as described in claim 1, which is characterized in that filling ceramics are fine in the reaction cup (9)
Vinylon and cotton blend and sodium peroxide, the interior distilled water filled for being added dropwise into reaction cup (9) of the Reciprocating Metering Pump (10).
5. chemical method BOD analyzer as described in claim 1, which is characterized in that the differential manometer (11) is U-shaped electromagnetism pressure
Difference meter.
6. chemical method BOD analyzer as described in claim 1, which is characterized in that the shell (1) is opaque.
7. chemical method BOD analyzer as described in claim 1, which is characterized in that further include for controlling the differential manometer
(11), the computer of solenoid valve (12), electromagnetic heating blender (2) and Reciprocating Metering Pump (10), the high-precision electronic scale
(8), Reciprocating Metering Pump (10), differential manometer (11), solenoid valve (12) and thermoprobe (14) are connect with control computer used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734230.4U CN208520714U (en) | 2018-05-17 | 2018-05-17 | A kind of chemical method BOD analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734230.4U CN208520714U (en) | 2018-05-17 | 2018-05-17 | A kind of chemical method BOD analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520714U true CN208520714U (en) | 2019-02-19 |
Family
ID=65339288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820734230.4U Expired - Fee Related CN208520714U (en) | 2018-05-17 | 2018-05-17 | A kind of chemical method BOD analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514282A (en) * | 2019-09-23 | 2019-11-29 | 华北电力大学（保定） | A kind of movement state response sample quality interval on-line measurement device |
-
2018
- 2018-05-17 CN CN201820734230.4U patent/CN208520714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514282A (en) * | 2019-09-23 | 2019-11-29 | 华北电力大学（保定） | A kind of movement state response sample quality interval on-line measurement device |
| CN110514282B (en) * | 2019-09-23 | 2021-07-02 | 华北电力大学（保定） | Motion state reaction sample quality intermittent on-line measuring device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |