CN205193618U - Online pH meter constant temperature auxiliary device - Google Patents
Online pH meter constant temperature auxiliary device Download PDFInfo
- Publication number
- CN205193618U CN205193618U CN201521019208.4U CN201521019208U CN205193618U CN 205193618 U CN205193618 U CN 205193618U CN 201521019208 U CN201521019208 U CN 201521019208U CN 205193618 U CN205193618 U CN 205193618U
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- temperature
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- constant temperature
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Abstract
The utility model provides an online pH meter constant temperature auxiliary device belongs to the chemical production online analysis field. The device locates online pH meter sample import front end, including temperature internally piloted valve, temperature detecting element, heat exchanger and temperature controller, the heat exchanger includes the import of fluid sample, fluid sample outlet, coolant import and coolant export, and on coolant import pipeline was located to the temperature internally piloted valve, temperature detecting element installed between fluid sample outlet and online pH meter sample import front end, be equipped with the temperature reference value in the temperature controller to according to temperature detecting element's measuring result with the controlled temperature internally piloted valve that concerns of temperature reference value is adjusted the temperature of online pH meter sample import front end. The utility model discloses can with the control of the sample temperature that gets into online pH meter in the temperature range that the analysis appearance required, ensure that analysis result is accurate, improved online pH meter 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 online pH meter constant temperature servicing unit particularly used in a kind of chemical industry online production.
Background technology
At present, in existing ion-exchange membrane electrolysis production of caustic soda, enter the secondary refining salt of electrolysis unit, the pH on-line analysis detector needing precision higher detects in real time to brine quality.But accuracy of detection analyzed by high-precision pH meter, and the impact by brine temp is larger.In actual production process, brine temp variation range is comparatively large, causes the accuracy of the analysis detected value of the online pH meter of high precision to reduce, easily causes maloperation, thus affect serviceable life and the current efficiency of the core component ionic membrane of electrolysis unit, cause the increase of production cost.Secondary refining salt pH value on-line analysis pick-up unit in special design ion-exchange membrane electrolysis production of caustic soda.
Summary of the invention
Technical assignment of the present utility model is in existing ion-exchange membrane electrolysis production of caustic soda technique, and secondary refining salt temperature is unstable, affects the problem that pH value analyzes accuracy of detection, provides a kind of online pH meter constant temperature servicing unit.
The utility model solves the technical scheme that its technical matters adopts:
Online pH meter constant temperature servicing unit, online pH meter sample inlet front end is located at by this constant temperature servicing unit, its structure 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 online pH meter sample inlet front end; Be provided with temperature reference value in temperature controller, and the temperature to online pH meter sample inlet front end regulates according to the measurement result of detector unit and the relation control temperature internally piloted valve of described temperature reference value.
Temperature display controller TICA selected by preferred described temperature controller.
The output terminal of preferred described temp autocontrolled valve access DCS control center temperature controller, the input end of detector unit and online pH meter access DCS control center temperature controller.
Preferred described heat eliminating medium is water.
The beneficial effect that online pH meter constant temperature servicing unit of the present utility model is compared with prior art produced is:
In the pipeline of the utility model before the sample inlet of online pH meter; set up thermostatically-controlled equipment; it can according to the request for utilization of online pH meter; timely adjustment enters the temperature of the analyzed test fluid sample of online pH meter; make it be within the scope of the best effort of this equipment, improve and analyze accuracy of detection, the core component ionic membrane of protection electrolysis unit is not damaged; for administration measure carries out providing analyzing data accurately, its structure is simple, easy to use, be convenient to realize automatic operation.
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 TICA, 3, detector unit, 4, online pH meter, 5, heat interchanger.
Embodiment
Below in conjunction with accompanying drawing 1-2, online pH meter constant temperature servicing unit 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 online pH meter constant temperature servicing unit of the present utility model, online pH meter 4 sample inlet front end is located at by this constant temperature servicing unit, its structure comprises temp autocontrolled valve 1, detector unit 3, heat interchanger 5 and temperature display controller TICA2, and temperature display controller TICA2 and temp autocontrolled valve 1 and detector unit 3 communicate to connect.
Heat interchanger 5 comprises fluid sample import, fluid sample outlet, cooling medium inlet and heat eliminating medium outlet, fluid sample import is connected with secondary refining salt pipeline, cooling water inlet is connected with public work chilled water upper hose, and coolant outlet is connected with public work CWR.Temp autocontrolled valve 1 is located on cooling water inlet pipeline, and detector unit 3 is arranged between fluid sample outlet and online pH meter 4 sample inlet front end; Be provided with temperature reference value in temperature display controller TICA2, and the temperature to online pH meter 4 sample inlet front end regulates according to the measurement result of detector unit and the relation control temperature internally piloted valve 1 of described temperature reference value.
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, and online pH meter 4 accesses the input end of ion-membrane electrolysis device DCS control center.
The technological process of online pH meter constant-temperature constant-current device of the present utility model is as follows: under normal production status, detector unit 3 detects the secondary refining salt sample entering online pH meter 4, the output signal of detector unit 3 enters ion-membrane electrolysis device DCS control center, this signal and temperature reference value compare, and detect secondary refining salt sample temperature whether in the scope that online pH meter 4 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 5, thus make the secondary refining salt sample temperature entering online pH meter 4 be increased to normal temperature; Otherwise then increase temp autocontrolled valve 1 aperture.Online pH meter 4 detection signal input ion-membrane electrolysis device DCS control center, for controllers monitoring ruuning situation.
Claims (4)
1. online pH meter constant temperature servicing unit, it is characterized in that, online pH meter sample inlet front end is located at by this constant temperature servicing unit, and its structure 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 online pH meter sample inlet front end; Be provided with temperature reference value in temperature controller, and the temperature to online pH meter sample inlet front end regulates according to the measurement result of detector unit and the relation control temperature internally piloted valve of described temperature reference value.
2. online pH meter constant temperature servicing unit according to claim 1, it is characterized in that, temperature display controller TICA selected by described temperature controller.
3. online pH meter constant temperature servicing unit according to claim 2, is characterized in that, the output terminal of described temp autocontrolled valve access DCS control center temperature controller, the input end of detector unit and online pH meter access DCS control center temperature controller.
4. online pH meter constant temperature servicing unit according to claim 2, it is characterized in that, described heat eliminating medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019208.4U CN205193618U (en) | 2015-12-09 | 2015-12-09 | Online pH meter constant temperature auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019208.4U CN205193618U (en) | 2015-12-09 | 2015-12-09 | Online pH meter constant temperature auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193618U true CN205193618U (en) | 2016-04-27 |
Family
ID=55786591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019208.4U Expired - Fee Related CN205193618U (en) | 2015-12-09 | 2015-12-09 | Online pH meter constant temperature auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133085A (en) * | 2019-05-22 | 2019-08-16 | 岭东核电有限公司 | Million kilowatt nuclear power station pH in-line meter test macro and method |
-
2015
- 2015-12-09 CN CN201521019208.4U patent/CN205193618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133085A (en) * | 2019-05-22 | 2019-08-16 | 岭东核电有限公司 | Million kilowatt nuclear power station pH in-line meter test macro and method |
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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: 20180103 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 |