CN204989005U - Water quality chemical oxygen demand detection device - Google Patents
Water quality chemical oxygen demand detection device Download PDFInfo
- Publication number
- CN204989005U CN204989005U CN201520769632.4U CN201520769632U CN204989005U CN 204989005 U CN204989005 U CN 204989005U CN 201520769632 U CN201520769632 U CN 201520769632U CN 204989005 U CN204989005 U CN 204989005U
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- CN
- China
- Prior art keywords
- heater strip
- semiconductor heater
- oxygen demand
- reaction chamber
- chemical oxygen
- 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
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Abstract
The utility model discloses a water quality chemical oxygen demand detection device, including the fume chamber reacting chamber inside with locating the fume chamber, being equipped with the insulating layer on the inner wall of fume chamber, the reacting chamber is used for placing reaction reagent and tests the water sample, the periphery of reacting chamber is equipped with the semiconductor heater strip, and the center of interior bottom is equipped with temperature sensor, and semiconductor heater strip and temperature sensor all are connected with the controller electricity, the winding of semiconductor heater strip is around the reacting chamber, and there is the certain distance at the interval between the reaction outdoor wall, the periphery of semiconductor heater strip is equipped with the round screened film for the thermion that reflection semiconductor heater strip sent. The utility model discloses a water quality chemical oxygen demand detection device, simple structure, reasonable in design uses nimble, convenience, and the low carbon is energy -conserving, can set for target temperature by the inside constancy of temperature of holding device, reliability and stability that assurance quality of water ammonia nitrogen detected.
Description
Technical field
The utility model belongs to ambient water quality online measuring technique field, is specifically related to a kind of water chemical oxygen demand pick-up unit.
Background technology
Along with the development of society, economic prosperity, modernization science and technology obtains applying more and more widely.In ambient water quality detection technique field, being also badly in need of using modernization science and technology means to save human and material resources, by computing machine and electronic technology integrated use, realizing detection technique modernization.
When carrying out ambient water quality chemical oxygen demand detection, national standard use potassium dichromate oxidation organism institute value is chemical oxygen demand (COD) in general sense, and available CODCr represents.This index is the important pollutant monitoring index in water quality standard, it reflects the degree that water body pollutes by reducing substances (especially organism), therefore existing oxidizing temperature and heat time become to measure chemical oxygen demand (COD) (CODcr) key point.Therefore, the direction becoming these those skilled in the art and make great efforts how is solved the problems of the technologies described above.
Utility model content
The purpose of this utility model solves the problem, and provides a kind of water chemical oxygen demand pick-up unit of temperature constant.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of water chemical oxygen demand pick-up unit, comprise vent cabinet and the reaction chamber being located at vent cabinet inside, the inwall of vent cabinet is provided with thermofin, reaction chamber is used for placing response reagent and test water sample, the outer of described reaction chamber is arranged with semiconductor heater strip, and the center of inner bottom part is provided with temperature sensor, and semiconductor heater strip and temperature sensor are all electrically connected with controller;
Described semiconductor heater strip is wrapped in around reaction chamber, and between reacting outdoor wall between be separated with certain distance;
The outer of described semiconductor heater strip is arranged with a circle screened film, for the thermion that reflective semiconductor heater strip sends.
Preferably, the upper end of described vent cabinet is connected with vent fan.
Preferably, described reaction chamber is made up of quartz material.
Preferably, described temperature sensor is thermistor temperature sensor.
The beneficial effects of the utility model are: water chemical oxygen demand pick-up unit provided by the utility model, and controller is connected with temperature sensor with semiconductor heater strip, for constant reaction chamber temperature; Semiconductor heater strip and reaction chamber are non-contact thermal, can ensure that heating effect is more even; Screened film is used for the thermion that reflective semiconductor heater strip sends, and makes heating effect more immediate stability, and the thermofin of vent cabinet arranges and also prevent scattering and disappearing of heat, makes test environment more comfortable simultaneously.The utility model structure is simple, reasonable in design, uses flexibly, conveniently, low-carbon energy-saving, energy holding device internal temperature constant, in target setting temperature, ensures the reliability and stability that Water quality ammonia nitrogen detects.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model water chemical oxygen demand pick-up unit;
Fig. 2 is the utility model semiconductor heater strip and reaction chamber position relationship schematic diagram.
Description of reference numerals: 1, vent cabinet; 2, reaction chamber; 3, semiconductor heater strip; 4, temperature sensor; 5, controller; 6, vent fan; 7, screened film.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further:
As shown in Figure 1 to Figure 2, water chemical oxygen demand pick-up unit of the present utility model, comprises the vent cabinet 1 of a rectangular parallelepiped, and the upper end of vent cabinet 1 is connected with vent fan 6, and the inwall of vent cabinet 1 is provided with thermofin, and thermofin can be heat-preservation cotton; Vent cabinet 1 inside is provided with reaction chamber 2, in the present embodiment, reaction chamber 2 is the hollow cylindrical structure be made up of quartz material, there is the characteristic of high temperature high voltage resistant, be applicable to the heating detected temperatures (165 DEG C) of chemical oxygen demand (COD), reaction chamber 2 upper end open, for placing response reagent and test water sample; The outer of reaction chamber 2 is arranged with semiconductor heater strip 3, and the center of inner bottom part is provided with temperature sensor 4, and semiconductor heater strip 3 is all connected with controller 5 by wire with temperature sensor 4.
Temperature sensor 4 is thermistor temperature sensor, and its precision is 1%, and length is 26mm, and diameter is 5mm, for the temperature data of detection reaction room 2 internal liquid; The power 150W of semiconductor heater strip 3, operating voltage 24V, maximum operating currenbt 5A, for heating reaction chamber 2; Controller 5 temperature resolution 0.1 DEG C, control accuracy 0.1 DEG C, target setting temperature range-50 ~ 1000 DEG C, return difference temperature range is 0.1 ~ 5 DEG C, and export and control contact capacity 10A/30V, the two-way automatic control of heating and cooling, is set as 165 DEG C by target temperature usually.
Traditional semiconductor heater strip 3 often directly and the wall contacts of reaction chamber 2, such advantage is that heating effect is fast, but reaction chamber 2 be heated and uneven, in the present embodiment, semiconductor heater strip 3 is wrapped in around reaction chamber 2, and and between reaction chamber 2 outer wall between be separated with certain distance, this distance is greater than 5mm, can according to the size adjustment of the winding density of semiconductor heater strip 3 and reaction chamber 2; The heat that semiconductor heater strip 3 sends is indirectly transferred to reaction chamber 2 by air, and heating effect is more even; The outer of semiconductor heater strip 3 is arranged with a circle screened film 7, and for the thermion that reflective semiconductor heater strip 3 sends, screened film 7 can not only increase the efficiency of heating surface of semiconductor heater strip 3, can also place scattering and disappearing of heat, make reaction chamber 2 temperature more constant.
Below the use procedure of above-mentioned detection device is described in further detail, to represent its principle of work and advantage:
In use, it is inner that chemical oxygen demand detection spectrophotometer, signal conditioning circuit, potassium dichromate reagent and detected water sample are all placed in reaction chamber 2, temperature sensor 4 gathers the temperature of reaction chamber 2 internal mix liquid, the temperature that controller 5 records according to temperature sensor 4, compare with target setting temperature, control the mode of operation of semiconductor heater strip 3, and then the temperature of reaction chamber 2 inside is in a constant state, thus ensures the reliability and stability that water chemical oxygen demand detects.It should be noted that, the controller 5 in the present embodiment is prior art.
Water chemical oxygen demand pick-up unit provided by the utility model, controller is connected with temperature sensor with semiconductor heater strip, for constant reaction chamber temperature; Semiconductor heater strip and reaction chamber are non-contact thermal, can ensure that heating effect is more even; Screened film is used for the thermion that reflective semiconductor heater strip sends, and makes heating effect more immediate stability, and the thermofin of vent cabinet arranges and also prevent scattering and disappearing of heat, makes test environment more comfortable simultaneously.The utility model structure is simple, reasonable in design, uses flexibly, conveniently, low-carbon energy-saving, energy holding device internal temperature constant, in target setting temperature, ensures the reliability and stability that Water quality ammonia nitrogen detects.
Those of ordinary skill in the art will appreciate that, embodiment described here is to help reader understanding's principle of the present utility model, should be understood to that protection domain of the present utility model is not limited to so special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combination of not departing from the utility model essence according to these technology enlightenment disclosed in the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (4)
1. a water chemical oxygen demand pick-up unit, it is characterized in that: comprise vent cabinet (1) and be located at the inner reaction chamber (2) of vent cabinet (1), the inwall of vent cabinet (1) is provided with thermofin, reaction chamber (2) is for placing response reagent and test water sample, the outer of described reaction chamber (2) is arranged with semiconductor heater strip (3), the center of inner bottom part is provided with temperature sensor (4), and semiconductor heater strip (3) and temperature sensor (4) are all electrically connected with controller (5);
Described semiconductor heater strip (3) is wrapped in reaction chamber (2) around, and between reaction chamber (2) outer wall between be separated with certain distance;
The outer of described semiconductor heater strip (3) is arranged with a circle screened film (7), for the thermion that reflective semiconductor heater strip (3) sends.
2. water chemical oxygen demand pick-up unit according to claim 1, is characterized in that: the upper end of described vent cabinet (1) is connected with vent fan (6).
3. water chemical oxygen demand pick-up unit according to claim 1, is characterized in that: described reaction chamber (2) is made up of quartz material.
4. water chemical oxygen demand pick-up unit according to claim 1, is characterized in that: described temperature sensor (4) is thermistor temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769632.4U CN204989005U (en) | 2015-09-30 | 2015-09-30 | Water quality chemical oxygen demand detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520769632.4U CN204989005U (en) | 2015-09-30 | 2015-09-30 | Water quality chemical oxygen demand detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989005U true CN204989005U (en) | 2016-01-20 |
Family
ID=55123362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520769632.4U Expired - Fee Related CN204989005U (en) | 2015-09-30 | 2015-09-30 | Water quality chemical oxygen demand detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241812A (en) * | 2015-09-30 | 2016-01-13 | 成都源溢科技有限公司 | Water quality chemical oxygen demand (COD) detection device |
-
2015
- 2015-09-30 CN CN201520769632.4U patent/CN204989005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241812A (en) * | 2015-09-30 | 2016-01-13 | 成都源溢科技有限公司 | Water quality chemical oxygen demand (COD) detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180323 Address after: 611731 new route No. 4 of Chengdu hi tech Zone, Sichuan Patentee after: CHENGDU HONQUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 611731 new route No. 4 of Chengdu hi tech Zone, Sichuan Patentee before: CHENGDU YUANYI SCIENCE & TECHNOLOGY CO., LTD. |
|
| 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: 20160120 Termination date: 20180930 |