CN205192952U - ORP on line analyzer constant current constant temperature auxiliary system - Google Patents
ORP on line analyzer constant current constant temperature auxiliary system Download PDFInfo
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- CN205192952U CN205192952U CN201521019107.7U CN201521019107U CN205192952U CN 205192952 U CN205192952 U CN 205192952U CN 201521019107 U CN201521019107 U CN 201521019107U CN 205192952 U CN205192952 U CN 205192952U
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Abstract
The utility model provides a ORP on line analyzer constant current constant temperature auxiliary system belongs to the chemical production online analysis field, and it is including establishing constant current controlling means and the constant temperature controlling means at ORP online analysis appearance sample import front end, and constant current controlling means includes flow internally piloted valve, flow transmitter and flow controller, and constant temperature controlling means includes temperature internally piloted valve, temperature detecting element, heat exchanger and online analysis 0. The heat exchanger includes the import of fluid sample, fluid sample outlet, coolant import and coolant export, and coolant import department is located to the temperature internally piloted valve, and temperature detecting element, flow internally piloted valve and flow transmitter install the department at fluid sample outlet. The utility model discloses can with the sample temperature that gets into ORP on line analyzer and flow control in temperature that the analysis appearance required, flow range, ensure that analysis result is accurate, improved the ORP on line analyzer reliability of operation, its simple structure, convenient to use, be convenient for realize automatic operation.
Description
Technical field
The utility model relates to Chemical Manufacture on-line analysis field, the ORP(oxidation-reduction potential particularly used in a kind of chemical industry online production) in-line analyzer constant-current constant-temperatureself-injection backup system.
Background technology
At present, in existing ion-exchange membrane electrolysis production of caustic soda, from the light salt brine out of electrolysis unit after vacuum dechlorination, the content of ORP on-line analysis detector to dechlorination light salt brine free chlorine needing precision higher detects in real time.But the accuracy of detection of high-precision ORP in-line analyzer, the impact by dechlorination light salt brine temperature is larger.Once dechlorination light salt brine temperature exceeds the optimum working temperature scope of instrument, the error of measurement result is larger.Meanwhile, the flow velocity of dechlorination light salt brine is too high, easily causes ORP in-line analyzer electrode damage.In actual production process, dechlorination light salt brine range of temperature is comparatively large, easily affect ORP in-line analyzer analysis result accuracy and also change along with operating mode, the flow velocity of dechlorination light salt brine is unstable, easily damages the electrode of ORP in-line analyzer.
Summary of the invention
Technical assignment of the present utility model is in existing ion-exchange membrane electrolysis production of caustic soda technique, dechlorination light salt brine temperature and instability of flow, affects the problem that free chlorine analyzes accuracy of detection, provides a kind of ORP in-line analyzer constant-current constant-temperatureself-injection backup system.
The utility model solves the technical scheme that its technical matters adopts:
ORP in-line analyzer constant-current constant-temperatureself-injection backup system, comprise the constant-current control device being located at ORP in-line analyzer sample inlet front end, constant-current control device comprises flow self controlled valve, flow transmitter and flow controller, and flow controller and flow self controlled valve and flow transmitter communicate to connect; Flow self controlled valve and flow transmitter are arranged between fluid sample outlet and ORP in-line analyzer sample inlet front end respectively; Be provided with flow reference value in flow controller, flow controller controls the flow of flow self controlled valve to ORP in-line analyzer sample inlet front end according to the relation of the measurement result of flow transmitter and described flow reference value and regulates.
Above-mentioned ORP in-line analyzer constant-current constant-temperatureself-injection backup system, also comprise the thermostatically-controlled equipment being located at ORP in-line analyzer sample inlet front end, thermostatically-controlled equipment comprises temp autocontrolled valve, detector unit, heat interchanger and temperature controller, and temperature controller and temp autocontrolled valve and detector unit communicate to connect; Described heat interchanger comprises fluid sample import, fluid sample outlet, cooling medium inlet and heat eliminating medium outlet, temp autocontrolled valve is located on cooling medium inlet pipeline, and detector unit is arranged between fluid sample outlet and ORP in-line analyzer sample inlet front end; Be provided with temperature reference value in temperature controller, and regulate according to the measurement result of detector unit and the temperature of relation control temperature internally piloted valve to ORP in-line analyzer sample inlet front end of described temperature reference value.
Temperature display controller TICA selected by preferred described temperature controller, and flow indication controller FICA selected by flow controller.
The output terminal of preferred described temp autocontrolled valve access DCS control center temperature controller, the input end of detector unit access DCS control center temperature controller, the output terminal of flow self controlled valve access DCS control center flow controller, the output terminal of flow transmitter access DCS control center flow controller, the input end of ORP in-line analyzer access DCS control center.
Preferred described heat eliminating medium is water.
The beneficial effect that ORP in-line analyzer constant-current constant-temperatureself-injection backup system of the present utility model is compared with prior art produced is:
In the pipeline of the utility model before the sample inlet of ORP in-line analyzer; set up thermostatically-controlled equipment and constant-current control device; it can according to the request for utilization of ORP in-line analyzer; timely adjustment enters temperature and the flow of the analyzed test fluid sample of ORP in-line analyzer; it is made to be within the scope of the best effort of this equipment; improve and analyze accuracy of detection, the most important member electrode of proterctive equipment is not damaged, for administration measure carries out providing analyzing data accurately.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is control structure schematic diagram of the present utility model.
In figure, 1, temp autocontrolled valve, 2, temperature display controller, 3, detector unit, 4, flow indication controller, 5, flow transmitter, 6, ORP in-line analyzer, 7, heat interchanger, 8, flow self controlled valve.
Embodiment
Below in conjunction with accompanying drawing 1-2, ORP in-line analyzer constant-current constant-temperatureself-injection backup system of the present utility model is described in detail below.
As shown in Figure 1, in ion-exchange membrane electrolysis production of caustic soda, apply ORP in-line analyzer constant-current constant-temperatureself-injection backup system of the present utility model, its structure comprises the thermostatically-controlled equipment and constant-current control device that are located at ORP in-line analyzer 6 sample inlet front end, thermostatically-controlled equipment comprises temp autocontrolled valve 1, detector unit 3, heat interchanger 7 and temperature display controller TICA2, and temperature display controller TICA2 and temp autocontrolled valve 1 and detector unit 3 communicate to connect; Constant-current control device comprises flow self controlled valve 8, flow transmitter 5 and flow indication controller FICA4, flow indication controller FICA4 and flow self controlled valve 8 and flow transmitter 5 and communicates to connect.
Above-mentioned heat interchanger 7 comprises fluid sample import, fluid sample outlet, cooling water inlet and coolant outlet, fluid sample import is connected with dechlorination light salt brine pipeline, cooling water inlet is connected with public work chilled water upper hose, coolant outlet is connected with public work CWR, temp autocontrolled valve 1 is located on cooling water inlet pipeline, and detector unit 3, flow self controlled valve 8 and flow transmitter 5 are arranged between fluid sample outlet and ORP in-line analyzer 6 sample inlet front end respectively.
Be provided with temperature reference value in temperature display controller TICA2, and regulate according to the temperature of the measurement result of detector unit 3 and relation control temperature internally piloted valve 1 pair of ORP in-line analyzer 6 sample inlet front end of described temperature reference value.
Be provided with flow reference value in flow indication controller FICA4, the flow that flow indication controller FICA4 controls flow self controlled valve 8 pairs of ORP in-line analyzer 6 sample inlet front ends according to the relation of the measurement result of flow transmitter 5 and described flow reference value regulates.
As shown in Figure 2, said temperature internally piloted valve 1 accesses the output terminal of ion-membrane electrolysis device DCS control center temperature display controller TICA2, detector unit 3 accesses the input end of ion-membrane electrolysis device DCS control center temperature display controller TICA2, flow self controlled valve 8 accesses the output terminal of the flow indication controller FICA4 of ion-membrane electrolysis device DCS control center, flow transmitter 5 accesses the input end of ion-membrane electrolysis device DCS control center flow indication controller FICA4, ORP in-line analyzer 6 accesses the input end of ion-membrane electrolysis device DCS control center.
The technological process of ORP in-line analyzer constant-temperature constant-current device of the present utility model is as follows: under normal production status, detector unit 3 detects the dechlorination light salt brine sample entering ORP in-line analyzer 6, the output signal of detector unit 3 enters ion-membrane electrolysis device DCS control center, this signal and temperature reference value compare, and detect dechlorination light salt brine sample temperature whether in the scope that ORP in-line analyzer 6 requires.DCS control center exports control signal according to comparative result to temp autocontrolled valve 1, if temperature is less than usable range, then reduce the aperture of temp autocontrolled valve 1, reduce the cold water water yield entering heat interchanger 7, thus make the dechlorination light salt brine sample temperature entering ORP in-line analyzer 6 be increased to normal temperature; Otherwise then increase temp autocontrolled valve 1 aperture.Flow transmitter 5 detects the dechlorination light salt brine sample flow entering ORP in-line analyzer 6, the output signal of flow transmitter 5 is input to ion-membrane electrolysis device DCS control center, this signal and flow reference value compare, and detect dechlorination light salt brine sample flow whether in the scope that ORP in-line analyzer 6 requires.DCS exports control signal according to comparative result to flow self controlled valve 8, if flow is higher than usable range, then reduces the aperture of flowrate control valve 8, thus makes the sample flow entering the online ORP in-line analyzer 6 of high precision be reduced to normal value; Otherwise then increase valve opening.ORP in-line analyzer 6 detection signal input ion-membrane electrolysis device DCS control center, for controllers monitoring ruuning situation.
Claims (5)
1.ORP in-line analyzer constant-current constant-temperatureself-injection backup system, it is characterized in that, comprise the constant-current control device being located at ORP in-line analyzer sample inlet front end, constant-current control device comprises flow self controlled valve, flow transmitter and flow controller, and flow controller and flow self controlled valve and flow transmitter communicate to connect; Flow self controlled valve and flow transmitter are arranged between fluid sample outlet and ORP in-line analyzer sample inlet front end respectively; Be provided with flow reference value in flow controller, flow controller controls the flow of flow self controlled valve to ORP in-line analyzer sample inlet front end according to the relation of the measurement result of flow transmitter and described flow reference value and regulates.
2. ORP in-line analyzer constant-current constant-temperatureself-injection backup system according to claim 1, it is characterized in that, also comprise the thermostatically-controlled equipment being located at ORP in-line analyzer sample inlet front end, thermostatically-controlled equipment comprises temp autocontrolled valve, detector unit, heat interchanger and temperature controller, and temperature controller and temp autocontrolled valve and detector unit communicate to connect; Described heat interchanger comprises fluid sample import, fluid sample outlet, cooling medium inlet and heat eliminating medium outlet, temp autocontrolled valve is located on cooling medium inlet pipeline, and detector unit is arranged between fluid sample outlet and ORP in-line analyzer sample inlet front end; Be provided with temperature reference value in temperature controller, and regulate according to the measurement result of detector unit and the temperature of relation control temperature internally piloted valve to ORP in-line analyzer sample inlet front end of described temperature reference value.
3. ORP in-line analyzer constant-current constant-temperatureself-injection backup system according to claim 2, it is characterized in that, temperature display controller TICA selected by described temperature controller, and flow indication controller FICA selected by flow controller.
4. the ORP in-line analyzer constant-current constant-temperatureself-injection backup system according to Claims 2 or 3, it is characterized in that, the output terminal of described temp autocontrolled valve access DCS control center temperature controller, the input end of detector unit access DCS control center temperature controller, the output terminal of flow self controlled valve access DCS control center flow controller, the output terminal of flow transmitter access DCS control center flow controller, the input end of ORP in-line analyzer access DCS control center.
5. the ORP in-line analyzer constant-current constant-temperatureself-injection backup system according to Claims 2 or 3, it is characterized in that, described heat eliminating medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019107.7U CN205192952U (en) | 2015-12-09 | 2015-12-09 | ORP on line analyzer constant current constant temperature auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019107.7U CN205192952U (en) | 2015-12-09 | 2015-12-09 | ORP on line analyzer constant current constant temperature auxiliary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205192952U true CN205192952U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019107.7U Expired - Fee Related CN205192952U (en) | 2015-12-09 | 2015-12-09 | ORP on line analyzer constant current constant temperature auxiliary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205192952U (en) |
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2015
- 2015-12-09 CN CN201521019107.7U patent/CN205192952U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 272350 Shandong city of Jining Province Huang Zhen Zhang Yutai County Patentee after: SHANDONG LUTAI CHEMICAL Co.,Ltd. Address before: 272350 Shandong city of Jining Province Huang Zhen Zhang Yutai County Patentee before: JINING GOLD POWER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180102 Address after: No. 16, canal road, Taibai Lake New Area, Shandong, Jining, Shandong Patentee after: SHANDONG LUTAI HOLDING GROUP Co.,Ltd. Address before: 272350 Shandong city of Jining Province Huang Zhen Zhang Yutai County Patentee before: SHANDONG LUTAI CHEMICAL Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |