CN202196071U - Measuring member for ammonia nitrogen water quality automatic analyzer - Google Patents
Measuring member for ammonia nitrogen water quality automatic analyzer Download PDFInfo
- Publication number
- CN202196071U CN202196071U CN2011203140034U CN201120314003U CN202196071U CN 202196071 U CN202196071 U CN 202196071U CN 2011203140034 U CN2011203140034 U CN 2011203140034U CN 201120314003 U CN201120314003 U CN 201120314003U CN 202196071 U CN202196071 U CN 202196071U
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- ammonia nitrogen
- water quality
- heat
- automatic analyzer
- quality automatic
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- Investigating Or Analysing Biological Materials (AREA)
Abstract
The utility model relates to a measuring member for an ammonia nitrogen water quality automatic analyzer, which comprises a heat conduction block, a front cover plate and a back cover plate which are machined by using heat conduction metal. The heat conduction block is provided with a fixing groove used for installing a liquor outlet flexible pipe, an ammonia nitrogen electrode, a circulation measuring tank and a liquor inlet flexible pipe, and a temperature control device is arranged on the back of the heat conduction block, at least comprises a heater and a temperature sensor, and heats and conducts constant temperature control for the heat conduction block. The temperature control device solves a temperature compensation problem of an electrode method ammonia nitrogen water quality automatic analyzer, compared with the prior art, a method that temperature is first measured and then a compensation method is adopted to convert electrode potential at standard temperature is used, so that measuring results are more accurate.
Description
Technical field
The utility model relates to a kind of measurement member that is used for ammonia nitrogen water quality automatic analyzer, relates in particular to the measurement member of the ammonia nitrogen water quality automatic analyzer that adopts electrode method measuring method.
Background technology
Ammonia nitrogen water quality automatic analyzer is divided into photometry and two kinds of measuring methods of electrode method, and the utility model relates to the ammonia nitrogen water quality automatic analyzer that adopts electrode method measuring method.Its measuring principle is: water sample to be measured is mixed with NaOH by a certain percentage, mixed liquor is contacted with ammonia gas-sensing electrode.The selective breathable films of the head of said ammonia gas-sensing electrode, said selectivity breathable films only allows ammonia to pass through, and forbids that water and other ions pass through.After adding NaOH solution in the water sample, the inorganic ammonium salt in the water sample to be measured changes ammonia into overflows, and sees through the selectivity breathable films of ammonia gas-sensing electrode, and the internal-filling liquid inner by ammonia gas-sensing electrode absorbs, and causes that the pH value of said internal-filling liquid changes.The pH value intensity of variation of the PH electrode pair internal-filling liquid that ammonia gas-sensing electrode is inner detects, and obtains ammonia nitrogen concentration in the water sample through after the computing.In above-mentioned measuring process,,, just can obtain correct ammonia nitrogen measured value so must carry out temperature compensation to the electrode measurement result because of pH value measurement temperature influence is bigger.Existing temperature compensation generally adopts measures temperature earlier; Be converted into the electrode potential under the standard temperature with penalty method again; Its shortcoming is: all be in same temperature because of not guaranteeing water sample, electrode and electrode internal-filling liquid; Temperature compensation converts can only be according to the temperature computation of measuring warm spot, and measurement brings error to pH value.
The utility model content
The utility model technical matters to be solved provides a kind of measurement member that is used for ammonia nitrogen water quality automatic analyzer, guarantees that water sample, electrode and electrode internal-filling liquid all are in same temperature, solves electrode method ammonia nitrogen water quality automatic analyzer issues of temperature compensation.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of measurement member that is used for ammonia nitrogen water quality automatic analyzer; Comprise heat-conducting block, front shroud and the back shroud be processed into by heat-conducting metal; Said heat-conducting block is provided with the pickup groove that is used to install discharge opeing flexible pipe, ammonia nitrogen electrode, circulation measuring cell and feed liquor flexible pipe; Said heat-conducting block is provided with attemperating unit at the back, and said attemperating unit comprises a well heater and a temperature sensor at least, and said heat-conducting block is heated and thermostatic control;
Further, said heat-conducting block is an aluminium matter heat-conducting block;
Further, the pickup groove that is used to install ammonia nitrogen electrode and circulation measuring cell on the said heat-conducting block is obliquely installed;
Further, the pickup groove that is used to install the feed liquor flexible pipe on the said heat-conducting block is tortuous repeatedly back and forth back-shaped pipeline and distributes;
Further, said heat-conducting block also is provided with the rectangular depression zone of a placement feed liquor flexible pipe extension;
Further, said feed liquor flexible pipe extension is to adopt tortuous repeatedly back and forth back-shaped pipeline structure to be positioned in the said rectangular depression zone;
Further, said heat-conducting block is that monoblock heat-conducting metal or the turning of alloy one are processed into;
Further, the temperature of said attemperating unit is 40 ℃;
Further, said ammonia nitrogen electrode vertically is plugged in the top of circulation measuring cell through the O-ring seal sealing;
Further, said circulation measuring cell is a cylindrical structure, and its input duct is vertical with the selectivity breathable films of ammonia nitrogen electrode.
Adopt as above structure, make the utility model, have following advantage with respect to prior art:
1. said heat-conducting block is provided with attemperating unit at the back; Said attemperating unit comprises a well heater and a temperature sensor at least; Said heat-conducting block is heated and thermostatic control; Solved the issues of temperature compensation of electrode method ammonia nitrogen water quality automatic analyzer, the measurement temperature that adopts earlier of comparing prior art re-uses the way that penalty method is converted into the electrode potential under the standard temperature, and measurement result is more accurate;
2. owing to the pickup groove that is used on the said heat-conducting block ammonia nitrogen electrode is installed and circulated measuring cell is obliquely installed; So the ammonia nitrogen electrode that is installed in the said pickup groove also tilts with the circulation measuring cell; So guaranteeing to measure the flow cell liquid outlet is tilted to; Guaranteed that the test solution physical efficiency is full of the confined space of being made up of circulation measuring cell and ammonia nitrogen electrode, avoided measuring receiving influence of air bubbles;
3. the pickup groove that is used to install the feed liquor flexible pipe on the said heat-conducting block is tortuous repeatedly back and forth back-shaped pipeline and distributes; And said feed liquor flexible pipe extension also is to adopt tortuous repeatedly back and forth back-shaped pipeline structure to place; This back-shaped pipeline structure had both played increases the long-pending function of heated contact surface, reaches the function of abundant mixing fluid to be measured again;
4. said heat-conducting block is that the turning of monoblock heat-conducting metal one is processed into, and firm and durable is easy to maintenance, long service life;
5. said ammonia nitrogen electrode is through the O-ring seal sealing; Vertically be plugged in the top of circulation measuring cell, said circulation measuring cell is a cylindrical structure, and its input duct is vertical with the selectivity breathable films of ammonia nitrogen electrode; When fluid to be measured when circulation measuring cell inlet gets into; Fluid to be measured vertically flows to the selectivity breathable films of ammonia nitrogen electrode, plays jet action, guarantees fully the contacting of selectivity breathable films of fluid to be measured and ammonia nitrogen electrode.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of ammonia nitrogen water quality automatic analyzer;
Fig. 2 is for measuring the heat-conducting block synoptic diagram of member;
Fig. 3 is for measuring the structural representation of member;
Fig. 4 is the enlarged drawing of the circulation measuring cell of measurement member.
Embodiment
Combine accompanying drawing and embodiment that the utility model is further specified at present.
Like Fig. 1-shown in Figure 4; A kind of measurement member 1 that is used for ammonia nitrogen water quality automatic analyzer; Comprise heat-conducting block 11, front shroud (figure is last not to indicate) and the back shroud (figure is last not to indicate) be processed into by heat-conducting metal; Said heat-conducting block 11 is provided with discharge opeing flexible pipe pickup groove 111, ammonia nitrogen electrode pickup groove 112, circulation measuring cell mounting groove 113 and feed liquor flexible pipe pickup groove 114, is respectively applied for discharge opeing flexible pipe 121, ammonia nitrogen electrode 122, circulation measuring cell 123 and feed liquor flexible pipe 124 are installed, and said heat-conducting block 11 back are provided with attemperating unit; Said attemperating unit comprises a well heater and a temperature sensor at least, and said heat-conducting block 11 is heated and thermostatic control.Said attemperating unit has solved the issues of temperature compensation of electrode method ammonia nitrogen water quality automatic analyzer, and the measurement temperature that adopts earlier of comparing prior art re-uses the way that penalty method is converted into the electrode potential under the standard temperature, and measurement result is more accurate.
Preferably, said heat-conducting metal is an aluminium, and it has, and cost is low, good heat conductivity, lightweight and portable in volume, be convenient to advantages such as turning processing, can certainly adopt other heat-conducting metals or alloy, for example silver, copper, iron, aluminium alloy, aldary etc.
Preferably; The ammonia nitrogen electrode pickup groove 112 that is used to install ammonia nitrogen electrode 122 on the said heat-conducting block 11 is obliquely installed with the circulation measuring cell mounting groove 113 that is used to install circulation measuring cell 123; So guaranteeing the liquid outlet of measuring flow cell is tilted to; Guaranteed that the test solution physical efficiency is full of the confined space of being made up of circulation measuring cell 123 and ammonia nitrogen electrode 122, avoided measuring receiving influence of air bubbles.
Preferably, the feed liquor flexible pipe pickup groove 114 that is used to install feed liquor flexible pipe 124 on the said heat-conducting block 11 is tortuous repeatedly back and forth back-shaped pipelines;
Preferably; Said heat-conducting block 11 also has the rectangular depression zone 1142 of a placement feed liquor flexible pipe extension; General feed liquor flexible pipe is long, and feed liquor flexible pipe pickup groove 114 can further be divided into tortuous repeatedly back and forth back-shaped pipeline structure 1141 and said rectangular depression zone 1142; Preferably; Said feed liquor flexible pipe 1241 is positioned over back-shaped pipeline structure 1141 the insides; Feed liquor flexible pipe extension 1242 under it places not adopts tortuous repeatedly back and forth back-shaped pipeline structure to be positioned in the said rectangular depression zone 1142; This tortuous repeatedly back and forth back-shaped pipeline structure had both played increases the long-pending function of heated contact surface, again fully flow-disturbing to reach the function of abundant mixing fluid to be measured.
Preferably, said heat-conducting block 11 is that monoblock heat-conducting metal or alloy are processed into, and has firm and durable, and is easy to maintenance, the advantage of long service life.
Preferably, the design temperature of said attemperating unit will be higher than environment temperature 5-10 ℃, and general design temperature is 40 ℃, has both guaranteed thermostatically controlled precision, does not cause energy dissipation again, but certainly also design temperature be other values, for example in 30 ℃ of-50 ℃ of scopes, adjust.
Preferably; Said ammonia nitrogen electrode 122 external packets are wrapped with ammonia nitrogen electrode jacket 1221, and through O-ring seal 1223 sealings, vertically are plugged in the top of circulation measuring cell 123; Said circulation measuring cell 123 is a cylindrical structure; Its input duct 1231 is vertical with the selectivity breathable films 1222 of ammonia nitrogen electrode 122, when fluid to be measured when circulation measuring cell inlet gets into, fluid to be measured vertically flows to the selectivity breathable films 1222 of ammonia nitrogen electrode 122; Play jet action, guarantee fully the contacting of selectivity breathable films 1222 of fluid to be measured and ammonia nitrogen electrode 122.
Combine ammonia nitrogen water quality automatic analyzer at present, specify the method for application of the optimum embodiment of the utility model:
During normal the measurement, use first pump 21 to extract water sample, second pump 22 extracts the NaOH reaction reagent, in main pipe rail, mixes, and forms fluid to be measured, and the measurement member 1 that gets into ammonia nitrogen water quality automatic analyzer is then measured; Fluid to be measured slowly flows into from inlet 126; Extension 1242, feed liquor flexible pipe 1241 through the feed liquor flexible pipe; Measuring cell 123 circulates;, and fully contact vertically to selectivity breathable films 1222 jets of ammonia nitrogen electrode 122 through its input duct 1231, then through discharge opeing flexible pipe 121, leakage fluid dram 125 outflows with selectivity breathable films 1222; Fluid to be measured is the measurement member 1 of continuous sample introduction to ammonia nitrogen water quality automatic analyzer, after ammonia nitrogen electrode 122 is experienced stable measuring voltage, begins to calculate measurement result, and this input mode can be realized the continuous coverage function to water sample.
When standard, cleaning; Switch through first solenoid valve 31, second solenoid valve 32, the 3rd solenoid valve 33 and 34 combinations of the 4th solenoid valve and to draw water samples, distilled water, cleaning fluid, titer A, titer B and mix with the NaOH reaction reagent; To reach different purpose; These are general knowledge, specifically elaboration here in the industry.
After measurement, calibration or cleaning finish; First pump 21 extracts the circulation measuring cell 123 that distilled water is filled the measurement member 1 of pipeline and ammonia nitrogen water quality automatic analyzer; Do not produce deposition with assurance pipeline and circulation measuring cell 123, and selectivity breathable films 1222 non flouling behaviours of protection ammonia nitrogen electrode 122.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; Can make various variations to the utility model in form with on the details, be the protection domain of the utility model.
Claims (10)
1. measurement member that is used for ammonia nitrogen water quality automatic analyzer; It is characterized in that; Comprise heat-conducting block, front shroud and the back shroud be processed into by heat-conducting metal; Said heat-conducting block is provided with the pickup groove that is used to install discharge opeing flexible pipe, ammonia nitrogen electrode, circulation measuring cell and feed liquor flexible pipe, and said heat-conducting block is provided with attemperating unit at the back, and said attemperating unit comprises a well heater and a temperature sensor at least.
2. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that said heat-conducting block is an aluminium matter heat-conducting block.
3. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that the pickup groove that is used on the said heat-conducting block ammonia nitrogen electrode is installed and circulated measuring cell is obliquely installed.
4. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1, the pickup groove that it is characterized in that being used on the said heat-conducting block installing the feed liquor flexible pipe is tortuous repeatedly back and forth back-shaped pipeline and distributes.
5. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that said heat-conducting block also is provided with the rectangular depression zone of a placement feed liquor flexible pipe extension.
6. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 5 is characterized in that said feed liquor flexible pipe extension is to adopt back and forth repeatedly the structure of tortuous back-shaped pipeline to be positioned in the said rectangular depression zone.
7. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that said heat-conducting block is that monoblock heat-conducting metal or the turning of alloy one are processed into.
8. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1, the temperature that it is characterized in that said attemperating unit is 40 ℃.
9. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that said ammonia nitrogen electrode through the O-ring seal sealing, vertically is plugged in the top of circulation measuring cell.
10. the measurement member that is used for ammonia nitrogen water quality automatic analyzer according to claim 1 is characterized in that said circulation measuring cell is a cylindrical structure, and its input duct is vertical with the selectivity breathable films of ammonia nitrogen electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203140034U CN202196071U (en) | 2011-08-24 | 2011-08-24 | Measuring member for ammonia nitrogen water quality automatic analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203140034U CN202196071U (en) | 2011-08-24 | 2011-08-24 | Measuring member for ammonia nitrogen water quality automatic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202196071U true CN202196071U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203140034U Expired - Fee Related CN202196071U (en) | 2011-08-24 | 2011-08-24 | Measuring member for ammonia nitrogen water quality automatic analyzer |
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| CN (1) | CN202196071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085214A (en) * | 2018-09-27 | 2018-12-25 | 湖北皓晟农业科技股份有限公司 | A kind of ammonia nitrogen water quality analyzer |
-
2011
- 2011-08-24 CN CN2011203140034U patent/CN202196071U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085214A (en) * | 2018-09-27 | 2018-12-25 | 湖北皓晟农业科技股份有限公司 | A kind of ammonia nitrogen water quality analyzer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20140824 |
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| EXPY | Termination of patent right or utility model |