CN100575938C - The automatic constant temperature measuring apparatus of ammonia nitrogen automonitor - Google Patents
The automatic constant temperature measuring apparatus of ammonia nitrogen automonitor Download PDFInfo
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- CN100575938C CN100575938C CN200710044777A CN200710044777A CN100575938C CN 100575938 C CN100575938 C CN 100575938C CN 200710044777 A CN200710044777 A CN 200710044777A CN 200710044777 A CN200710044777 A CN 200710044777A CN 100575938 C CN100575938 C CN 100575938C
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Abstract
A kind of automatic constant temperature measuring apparatus of ammonia nitrogen automonitor, comprise heating arrangements, automatic constant-temperature mechanism, liquid-transport pipe-line and potential electrode, it is characterized in that: the box-like body that described this device is made up of two blocks of aluminium alloys, the left and right automatic constant-temperature mechanism that arranges is being set in the end box of empty shape therein and is settling the measuring cell of potential electrode, at the back side of the end box heating arrangements is being set simultaneously.Described heating arrangements is by being embedded in many heating rods in the groove of the box back side, the end and forming with the temperature relay that these heating rods are serially connected, and is embedded temperature sensor and heater in heating rod.Described automatic constant-temperature mechanism constitutes the liquid constant temperature transport path by the PVC woven hose of being located at the groove that is applying thermal grease conduction in the end box and be wound in the end box groove, and with the box back side, end groove in the heating rod of setting temperature sensor and heater, and the control chip that is connected with sensor constitutes automatic constant-temperature mechanism; An end of described PVC woven hose is for detecting the liquid import simultaneously, and its other end then feeds the measuring cell bottom.
Description
Technical field
The present invention relates to the automatic constant temperature measuring apparatus of a kind of accessory device of water quality automatic analyzer, particularly a kind of ammonia nitrogen automonitor.
Background technology
With the concentration of ammonium ion in ammonia gas-sensing electrode (hereinafter to be referred as electrode) the method measurement aqueous solution (waste water, water of productive use and surface water), this method is easy, measurement range is wide and water sample needn't carry out pre-service.Therefore in ammonia nitrogen water quality is analyzed automatically, very consequence is arranged.
When using the electrode method to measure the concentration of ammonium ion in the aqueous solution, the temperature error of measurement mechanism (comprising water sample, standard specimen and electrode) directly has influence on the degree of accuracy of measurement result.In addition, bring in the pipeline or solution in the bubble of spontaneous generation can adsorb or enrichment, can intercept contacting of electrode and solution, also can directly influence measurement result.
At present, the constant temperature of measurement mechanism is by a water bath with thermostatic control, and water sample, standard specimen and electrode are carried out constant temperature, and pipeline loop is passed through in water bath with thermostatic control.In measuring cell, add agitation beads, drive the agitation beads agitating solution with externally-applied magnetic field.This device volume is huge, and mechanical drive is loaded down with trivial details to be out of order easily, and the thermostat temperature fluctuation is big.This device is big, and mechanical drive is loaded down with trivial details to be out of order easily.Owing to be difficult for getting rid of if any bubble in the pipeline, the surface of electrode can be adsorbed on simultaneously, also measuring accuracy can be influenced.
Therefore, how to solve existing electrode method measure bring in the constant temperature problem of the concentration device of ammonium ion in the aqueous solution, the pipeline or solution in the obstruct electrode that bubble can adsorb or enrichment causes and the contact problems of solution of spontaneous generation, and the bulky problem of device has been a bottleneck of this kind of raising checkout equipment accuracy of detection.
Summary of the invention
Purpose of the present invention: be intended to propose a kind of automatic constant temperature measuring apparatus that is applicable to existing ammonia nitrogen ammonia nitrogen automonitor, wish to reduce effectively the bulkiness of thermostat, simultaneously can have good constant temperature effect, can also overcome effectively because of bubble absorption or enrichment, can intercept problems such as electrode and contacting of solution.
The automatic constant temperature measuring apparatus of this ammonia nitrogen automonitor, comprise heating arrangements, automatic constant-temperature mechanism, liquid-transport pipe-line and potential electrode, it is characterized in that: the box-like body that described this device is made up of two blocks of aluminium alloys, the left and right automatic constant-temperature mechanism that arranges is being set in the end box of empty shape therein and is settling the measuring cell of potential electrode, at the back side of the end box heating arrangements is being set simultaneously.
Described heating arrangements is by being embedded in many heating rods in the groove of the box back side, the end and forming with the temperature relay that these heating rods are serially connected, and is embedded temperature sensor and heater in heating rod.
Described automatic constant-temperature mechanism constitutes the liquid constant temperature transport path by the PVC woven hose of being located at the groove that is applying thermal grease conduction in the end box and be wound in the end box groove, and with the box back side, end groove in the heating rod of setting temperature sensor and heater, and the control chip that is connected with sensor constitutes automatic constant-temperature mechanism; An end of described PVC woven hose is for detecting the liquid import simultaneously, and its other end then feeds the measuring cell bottom.
Described potential electrode is skewed to be located in the measuring cell, and the bottom of potential electrode connects the delivery outlet of PVC woven hose, is provided with a freeing port in the bottom of measuring cell again simultaneously.
Described potential electrode and plummet face are 30 degree angle settings.
The automatic constant temperature measuring apparatus of this ammonia nitrogen automonitor that proposes according to above technical scheme, not only volume is little, and is in light weight, safeguards fewly, and energy resource consumption is few: saved water bath with thermostatic control.Do not need running check and supplementing water bath water branch; Simultaneously, can not have the aeration measuring accuracy in the pipeline, the institute's temperature that makes control is more accurate, and measuring accuracy is better.It is big because of measuring cell and water bath with thermostatic control distance to have overcome original measurement mechanism fully, and the thermostatted water energy loss of pumping is big, measuring cell thermal equilibrium ability, the state of the art that measuring accuracy is relatively poor.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is the heating arrangements structural representation at the heating plate back side;
Accompanying drawing 3 is that the AA of accompanying drawing 1 is to sectional view.
Among the figure: box B-loam cake C-insulation bottom plate at the bottom of the 1-PVC woven hose 2-potential electrode 3-heating plate pad 4-measuring cell 5-freeing port 6-water inlet 7-heating plate pad 8-heating plate 9-groove 10-heating rod 11-temperature relay 12-temperature sensor 13-heater 14-securing member 15-lead A-
Embodiment
The automatic constant temperature measuring apparatus of this ammonia nitrogen automonitor shown in Fig. 1 ~ 3, it is can inventive improvements to a kind of of the thermostat of existing water quality automatic analyzer, the automatic constant temperature measuring apparatus of ammonia nitrogen automonitor, comprise heating arrangements, automatic constant-temperature mechanism, liquid-transport pipe-line and potential electrode, it is characterized in that: the box-like body that described this device is made up of two blocks of aluminium alloys, the left and right automatic constant-temperature mechanism that arranges is being set in the end box of empty shape therein and is settling the measuring cell of potential electrode, at the back side of the end box heating arrangements is being set simultaneously.
Described heating arrangements is by being embedded in the many heating rods 10 in the box back side, the end groove 9 and forming with the temperature relay 11 that these heating rods 10 are serially connected, and is embedded temperature sensor 12 and heater 13 in heating rod.
Described automatic constant-temperature mechanism constitutes the liquid constant temperature transport path by the PVC woven hose 1 of being located at the groove that is applying thermal grease conduction 9 in the end box A and be wound in the end box groove, and with the box A back side, end groove in the heating rod 10 of setting temperature sensor 12 and heater 13, and the control chip that is connected with sensor 12, heater 13 constitutes automatic constant-temperature mechanism; An end of described PVC woven hose 1 is for detecting liquid water inlet 6 simultaneously, and its other end then feeds measuring cell 4 bottoms.
Described potential electrode 2 skewed being located in the measuring cell 4, the bottom of potential electrode connects the delivery outlet of PVC woven hose, is provided with a freeing port 5 simultaneously again in the bottom of measuring cell.
Described potential electrode 2 is 30 degree angle settings with the plummet face.
The principle of work of the automatic constant temperature measuring apparatus of this ammonia nitrogen automonitor is:
The aluminium alloy box body of forming this device, its end box is owing to be provided with the heating rod that is connected with control chip and be attached to temperature sensor, heater on the heating rod at the back side of end box, after the other temperature relay, be actually the heat conductor of whole thermostat.Detected temperatures is controlled in the reasonable scope according to operator's wish by chip.At first heater produces heat energy behind circuit turn-on, makes heating liner plate and the heating plate heating of being located on the end box by heating rod, makes to be looped around under the thermal grease conduction effect that the PVC woven hose in the end box groove applies in groove to make liquid in pipe obtain heat energy.Thereby make cryogenic liquid obtain the liquid of a specified temp, and finally make the liquid of this specified temp enter measuring cell to finish measurement through after the Constant-temp. pipeline heating.In this whole service process, in case the temperature of liquid has fluctuating, by after being located at temperature sensor on the heating rod and making the control chip picked up signal, can impel heater to adjust thermal value automatically, thereby whole device is in the normal specific range of temperatures all the time.
Simultaneously, place with vertical guide and become the effects at 30 degree angles to be being located at potential electrode in the measuring cell, make and enter measuring cell if any bubble in the pipeline and can slip over the potential electrode surface very soon, overcome bring in the pipeline or solution in the obstruct electrode that bubble can adsorb or enrichment causes of spontaneous generation and the contact problems of solution, make it not influence the potential electrode operate as normal.After overflowing measuring cell, liquid after all are measured enters freeing port.
Claims (4)
1, a kind of automatic constant temperature measuring apparatus of ammonia nitrogen automonitor, comprise heating arrangements, automatic constant-temperature mechanism, liquid-transport pipe-line and potential electrode, it is characterized in that: the box-like body that described this device is made up of two blocks of aluminium alloys, the left and right automatic constant-temperature mechanism that arranges is being set in the end box of empty shape therein and is settling the measuring cell of potential electrode, at the back side of the end box heating arrangements is being set simultaneously; Described heating arrangements is by being embedded in many heating rods in the groove of the box back side, the end and forming with the temperature relay that these heating rods are serially connected, and is embedded temperature sensor and heater in heating rod; Described automatic constant-temperature mechanism constitutes the liquid constant temperature transport path by the PVC woven hose of being located at the groove that is applying thermal grease conduction in the end box and be wound in the end box groove, and with the box back side, end groove in the heating rod of setting temperature sensor and heater, and the control chip that is connected with sensor constitutes automatic constant-temperature mechanism.
2, the automatic constant temperature measuring apparatus of a kind of ammonia nitrogen automonitor as claimed in claim 1 is characterized in that: an end of described PVC woven hose is for detecting the liquid import simultaneously, and its other end then feeds the detection cell bottom.
3, the automatic constant temperature measuring apparatus of a kind of ammonia nitrogen automonitor as claimed in claim 1, it is characterized in that: described electrode incline shape is located in the measuring cell, the bottom of potential electrode connects the delivery outlet of PVC woven hose, is provided with a freeing port in the bottom of measuring cell again simultaneously.
4, as the automatic constant temperature measuring apparatus of claim 1 or 3 described a kind of ammonia nitrogen automonitors, it is characterized in that: described potential electrode and plummet face are 30 degree angle settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710044777A CN100575938C (en) | 2007-08-10 | 2007-08-10 | The automatic constant temperature measuring apparatus of ammonia nitrogen automonitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710044777A CN100575938C (en) | 2007-08-10 | 2007-08-10 | The automatic constant temperature measuring apparatus of ammonia nitrogen automonitor |
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| Publication Number | Publication Date |
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| CN101109727A CN101109727A (en) | 2008-01-23 |
| CN100575938C true CN100575938C (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710044777A Active CN100575938C (en) | 2007-08-10 | 2007-08-10 | The automatic constant temperature measuring apparatus of ammonia nitrogen automonitor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115128139B (en) * | 2022-05-19 | 2023-11-03 | 广州伊创科技股份有限公司 | Environment monitor with constant temperature device |
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2007
- 2007-08-10 CN CN200710044777A patent/CN100575938C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 水质氨氮在线监测仪发展现状. 汪志国等.干旱环境监测，第19卷第1期. 2005 |
| 水质氨氮在线监测仪发展现状. 汪志国等.干旱环境监测，第19卷第1期. 2005 * |
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| CN101109727A (en) | 2008-01-23 |
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Owner name: SHANGHAI INESA SCIENTIFIC INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SHANGHAI CO., LTD OF FINE SCIENTIFIC INSTRUMENTS Effective date: 20120516 |
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Free format text: CORRECT: ADDRESS; FROM: 200233 XUHUI, SHANGHAI TO: 201805 JIADING, SHANGHAI |
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Effective date of registration: 20120516 Address after: 201805 Shanghai City, Anting, Miquan Road, No. 111, room 2, building 101, room Patentee after: INESA Scientific Instrument Co., Ltd. Address before: 200233 No. 10, Cangwu Road, Shanghai, Xuhui District Patentee before: Shanghai Co., Ltd of Fine Scientific Instruments |