CN104759245B - A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device - Google Patents
A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device Download PDFInfo
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- CN104759245B CN104759245B CN201510117351.5A CN201510117351A CN104759245B CN 104759245 B CN104759245 B CN 104759245B CN 201510117351 A CN201510117351 A CN 201510117351A CN 104759245 B CN104759245 B CN 104759245B
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Abstract
The invention discloses a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device, including reactor and eddy flow detector, liquid to be measured placed by eddy flow detector, digital display teletransmission pH meter is arranged on eddy flow detector and detects the pH value of liquid to be measured, eddy flow detector is arranged at outside reactor, reactor sidewall is provided with media outlet and medium back flow mouth, media outlet is connected with the charging aperture of eddy flow detector by medium delivery line, the discharging opening of eddy flow detector is connected with medium back flow mouth by medium back flow pipe, medium delivery line is provided with membrane pump, medium back flow pipe is provided with U-shaped liquid sealing pipe。The present invention can synchronize the change of pH value in explicit still, again not by the impact of liquid level in still, can be effectively improved the use environment of pH meter, improve service life, be substantially reduced security risk and risk of environmental pollution that manual sampling is likely to bring。This device is applied in actual production, it is possible to effective offer for production detects data reliably。
Description
Technical field
The invention belongs to technical field of chemical, concretely relate to a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device。
Background technology
Chemical Manufacture needs to adjust in a kettle. the pH value of reactant liquor, is usually in the past to extract reaction solution and tests with accurate pH test paper, and precision is not high, operates original and dangerous；Along with the application of chemical process automation device, digital display teletransmission pH meter is more and more applied to measure in time in the reactor of pH value。Owing to good digital display teletransmission pH meter is expensive, the curing requirements of its pH meter electrode is high, traditional still is inserted into formula installation method, because of the change etc. that the change of liquid level in still, evacuation, stop production to overhaul are vacant, cause that inconvenient the taking-up in time of pH electrode is avoided negative pressure or steep in water, it is easy to dry and astringent damage or damaged by negative pressure。The digital display teletransmission pH meter price 2～60,000 yuan of general good brand/not etc., also difficulty is used 2～3 months, and not good enough 0.2～0.8 ten thousand yuan/, take less than 1～2 month, within several days had, be just broken。Bring very big economic loss to enterprise, it is often more important that automated production is affected, bring potential problem to product quality and production safety。
Summary of the invention
The technical problem to be solved is just to provide a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device, can synchronize the change of pH value in explicit still, can be effectively improved the use environment of pH meter, improves service life。
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device, including reactor and eddy flow detector, liquid to be measured placed by described eddy flow detector, described digital display teletransmission pH meter is arranged on eddy flow detector and detects the pH value of liquid to be measured, described eddy flow detector is arranged at outside reactor, described reactor sidewall is provided with media outlet and medium back flow mouth, described media outlet is connected with the charging aperture of eddy flow detector by medium delivery line, the discharging opening of described eddy flow detector is connected with medium back flow mouth by medium back flow pipe, described medium delivery line is provided with membrane pump, described medium back flow pipe is provided with U-shaped liquid sealing pipe。
The present invention by installing membrane pump between medium delivery line and medium back flow pipe, and after membrane pump, set eddy flow detector, medium can being realized at airtight environment and derive on-line checking function, being likely to bring security risk and risk of environmental pollution thus effectively reducing manual sampling。The use of the design of eddy flow detector and membrane pump can effectively prevent measured medium Crystallization Plugging pipeline, effectively prevents measured medium from forming dead angle at eddy flow detector, the accuracy of on-line checking is greatly improved。
During work, below the measured medium liquid level in medium delivery line insertion reaction still, measured medium by medium delivery line sucking-off, is entered eddy flow detector via membrane pump tangential direction by membrane pump。The probe of on-line measuring device inserts below the liquid liquid level to be measured in eddy flow detector, it is achieved on-line checking function。Liquid to be measured is by, bottom eddy flow detector, being back in reactor to medium back flow pipe through U-shaped liquid sealing pipe。Described U-shaped liquid sealing pipe adopts the design of " U " type, slightly above the height of on-line measuring device probe in eddy flow detector on the left of U-tube, it can be ensured that on-line measuring device probe is immersed in below measured medium liquid level, it is ensured that the accuracy of measurement data。
Preferably, described eddy flow detector is conical structure, and the discharging opening of described eddy flow detector is located at eddy flow detector upper portion side wall and tangentially arranges。Described eddy flow detector inner wall smooth, material is preferably enamel。When device comes into operation, measured medium is obtained certain initial velocity by the power of membrane pump, when measured medium tangentially enters eddy flow detector with certain speed, eddy flow detector centre flow velocity is the slowest, and the on-line measuring device measured medium impulsive force that is subject to of probe of Insert Here is minimum, can effectively prevent and treat on-line measuring device probe and be impacted by measured medium and damage。And can effectively prevent measured medium Crystallization Plugging eddy flow detector。Additionally, the eddy flow design of eddy flow detector can effectively prevent measured medium from forming dead angle at eddy flow detector, it is possible to the accuracy of on-line checking is greatly improved。
Preferably, described eddy flow detector is provided with cleaning replacement media entrance。In order to prevent and treat measured medium Crystallization Plugging pipeline or corrosion and damage equipment, apparatus of the present invention are mounted with to clean replacement media entrance。When need not detect, system is carried out displacement by the available replacement media that cleans。Clean replacement media and mostly adopt pure water, it is possible to adopt other media to be carried out displacement according to technological requirement。The bypath valve bottom U-tube liquid sealing pipe is opened when cleaning displacement, drain and in device, after medium, close bypass valve, close medium delivery line valve, open cleaning replacement media inlet valve, clean replacement media and enter eddy flow detector through membrane pump, it is back in reactor through U-shaped liquid sealing pipe, medium back flow pipe, it is achieved device cleans displacement。
Preferably, described membrane pump is pneumatic diaphragm pump or electric diaphragm pump。Also can select other pumps with self-suction function or material according to process conditions。
A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device of the present invention, the change of pH value in explicit still can be synchronized, again not by the impact of liquid level in still, also the impact of evacuation in still it is not subject to, in pH meter electrode soak all the time, when maintenance or stopping production after closing valve, only need to open related valve just flushable totally, and the immersion pH meter electrode that discharges water, the use environment of pH meter can be effectively improved, improve service life。And " locked in " operation can be realized in detection process and cleaning replacement process, it is substantially reduced security risk and risk of environmental pollution that manual sampling is likely to bring。This device is applied in actual production, and in use procedure, on-line checking data are accurately, truly, it is possible to effective offer for production detects data reliably, and in order to become more meticulous, science production management provides safeguard。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the structural representation of the present invention a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device embodiment 1。
Detailed description of the invention
As shown in Figure 1, preferred embodiment 1 for the present invention a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device, including reactor 1 and eddy flow detector 10, liquid to be measured placed by described eddy flow detector 10, described digital display teletransmission pH meter 5 is arranged on eddy flow detector 10 and detects the pH value of liquid to be measured, described eddy flow detector 10 is arranged at outside reactor 1, described reactor 1 sidewall is provided with media outlet and medium back flow mouth, described media outlet is connected with the charging aperture of eddy flow detector 10 by medium delivery line 11, the discharging opening of described eddy flow detector 10 is connected with medium back flow mouth by medium back flow pipe 12, described medium delivery line 11 is provided with membrane pump 6, described medium back flow pipe 12 is provided with U-shaped liquid sealing pipe 9。
Described eddy flow detector 10 is conical structure, and the discharging opening of described eddy flow detector 10 is located at eddy flow detector 10 upper portion side wall and tangentially arranges。Described eddy flow detector 10 inner wall smooth, material is preferably enamel。When device comes into operation, measured medium is obtained certain initial velocity by the power of membrane pump 6, when measured medium tangentially enters eddy flow detector 10 with certain speed, eddy flow detector 10 center flow velocity is the slowest, and the on-line measuring device measured medium impulsive force that is subject to of probe of Insert Here is minimum, can effectively prevent and treat on-line measuring device probe and be impacted by measured medium and damage。And can effectively prevent measured medium Crystallization Plugging eddy flow detector。Additionally, the eddy flow design of eddy flow detector 10 can effectively prevent measured medium from forming dead angle at eddy flow detector 10, it is possible to the accuracy of on-line checking is greatly improved。
Described eddy flow detector 10 is provided with cleaning replacement media entrance 4。In order to prevent and treat measured medium Crystallization Plugging pipeline or corrosion and damage equipment, apparatus of the present invention are mounted with to clean replacement media entrance 4。When need not detect, system is carried out displacement by the available replacement media that cleans。Clean replacement media and mostly adopt pure water, it is possible to adopt other media to be carried out displacement according to technological requirement。The bypath valve bottom U-tube liquid sealing pipe 9 is opened when cleaning displacement, drain and in device, after medium, close bypass valve, close medium delivery line 11 valve, open cleaning replacement media entrance 4 valve, clean replacement media and enter eddy flow detector 10 through membrane pump 6, it is back in reactor 1 through U-shaped liquid sealing pipe 9, medium back flow pipe 12, it is achieved device cleans displacement。
Described membrane pump 6 is pneumatic diaphragm pump or electric diaphragm pump。Also can select other pumps with self-suction function or material according to process conditions。
The present invention by installing membrane pump 6 between medium delivery line 11 and medium back flow pipe 12, and after membrane pump 6, set eddy flow detector 10, medium can being realized at airtight environment and derive on-line checking function, being likely to bring security risk and risk of environmental pollution thus effectively reducing manual sampling。Eddy flow detector 10 designs and the use of membrane pump 6 can effectively prevent measured medium Crystallization Plugging pipeline, effectively prevents measured medium from forming dead angle at eddy flow detector 10, the accuracy of on-line checking is greatly improved。
During work, below the measured medium liquid level in medium delivery line 11 insertion reaction still 1, measured medium by medium delivery line 11 sucking-off, is entered eddy flow detector 10 via membrane pump 6 tangential direction by membrane pump 6。The probe of on-line measuring device inserts below the liquid liquid level to be measured in eddy flow detector 10, it is achieved on-line checking function。Liquid to be measured is by, bottom eddy flow detector 10, being back in reactor 1 through U-shaped liquid sealing pipe 9 to medium back flow pipe 12。Described U-shaped liquid sealing pipe 9 adopts " U " type to design, slightly above the height of on-line measuring device probe in eddy flow detector 10 on the left of U-tube, it can be ensured that on-line measuring device probe is immersed in below measured medium liquid level, it is ensured that the accuracy of measurement data。
When needing the reacting liquid pH value in detection reactor 1, close valve closing 2, open valve 7, start membrane pump 6, then the measured medium in reactor 1 is extracted out and is sent into eddy flow detector 10, valve 3 normally opened (only in reactor 1, during evacuation, valve 3 cuts out), liquid to be measured flows back in reactor 1 through U-shaped liquid sealing pipe 9, and U-shaped liquid sealing pipe 9 port of export is additionally provided with visor 13。Eddy flow detector 10 is used for detecting pH value and the electrode maintenance of liquid to be measured, the incoming PLC of numerical value of digital display teletransmission pH meter measurement or DCS system, reaches the pH value parameter set, and system signal cuts off reactor 1 alkali or acid gas moves and drips valve, completes pH value allocated gauging and works。When wanting evacuation in reactor 1, then by valve 2,3,7,8 contract fully；When stop production to overhaul or do not use for nearly more than 1 day, then open valve 2, close valve closing 7, open valve 8, start membrane pump 6, inhale tap water or purified rinse water electrode by cleaning replacement media entrance 4, close valve closing 2 after washing down, inhale pure water maintenance pH electrode。
The foregoing is only specific embodiments of the invention, but the technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and change or the modification made all are encompassed among the scope of the claims of the present invention。
Claims (3)
1. a chemical reaction still outer circulation type digital display teletransmission pH meter device, it is characterized in that: include reactor (1) and eddy flow detector (10), described eddy flow detector (10) places liquid to be measured, described digital display teletransmission pH meter (5) is arranged on eddy flow detector (10) and detects the pH value of liquid to be measured, described eddy flow detector (10) is arranged at reactor (1) outward, described reactor (1) sidewall is provided with media outlet and medium back flow mouth, described media outlet is connected with the charging aperture of eddy flow detector (10) by medium delivery line (11), the discharging opening of described eddy flow detector (10) is connected with medium back flow mouth by medium back flow pipe (12), described medium delivery line (11) is provided with membrane pump (6), described medium back flow pipe (12) is provided with U-shaped liquid sealing pipe (9)。
2. a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device according to claim 1, it is characterised in that: described eddy flow detector (10) is provided with cleaning replacement media entrance (4)。
3. a kind of chemical reaction still outer circulation type digital display teletransmission pH meter device according to claim 1, it is characterised in that: described membrane pump (6) is pneumatic diaphragm pump or electric diaphragm pump。
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| CN201510117351.5A CN104759245B (en) | 2015-03-17 | 2015-03-17 | A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device |
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| CN201510117351.5A CN104759245B (en) | 2015-03-17 | 2015-03-17 | A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device |
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| CN104759245B true CN104759245B (en) | 2016-06-22 |
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| CN109871046A (en) * | 2017-12-05 | 2019-06-11 | 宜宾天原集团股份有限公司 | The device of outer circulation automatic measuring and controlling pH |
| CN110841576B (en) * | 2019-12-16 | 2024-03-15 | 中国轻工业长沙工程有限公司 | Slurry type reaction kettle pH value online intermittent measuring device |
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| JP4743421B2 (en) * | 2006-03-29 | 2011-08-10 | 栗田工業株式会社 | Aggregation reactor |
| CN201195092Y (en) * | 2007-12-29 | 2009-02-18 | 北京博奇电力科技有限公司 | PH value metering system |
| CN103463959A (en) * | 2012-06-06 | 2013-12-25 | 哈尔滨市浙青除尘脱硫设备配件加工厂 | Desulfurization liquid pH value sampling system capable of clarifying slurry and preventing slurry plugging |
| CN204619971U (en) * | 2015-03-17 | 2015-09-09 | 浙江中山化工集团股份有限公司 | A kind of chemical reaction still outer circulation type digital display teletransmission pH meter device |
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Application publication date: 20150708 Assignee: Xiangshui Zhongshan Biotechnology Co., Ltd. Assignor: ZHEJIANG ZHONGSHAN CHEMICAL GROUP STOCK CO., LTD. Contract record no.: 2018990000154 Denomination of invention: Chemical reaction kettle external-circulating-type digital-display remote-transmission pH meter device Granted publication date: 20160622 License type: Common License Record date: 20180613 |
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Assignee: Xiangshui Zhongshan Biotechnology Co., Ltd. Assignor: ZHEJIANG ZHONGSHAN CHEMICAL GROUP STOCK CO., LTD. Contract record no.: 2018990000154 Date of cancellation: 20181127 |
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Effective date of registration: 20200102 Address after: 247200 Dongzhi County Economic Development Zone, Chizhou, Anhui Patentee after: Anhui Zhongshan Chemical Co., Ltd. Address before: 313100 No. 2303, Taihu Avenue, Changxing County Economic Development Zone, Huzhou, Zhejiang Patentee before: ZHEJIANG ZHONGSHAN CHEMICAL GROUP STOCK CO., LTD. |