CN201828421U - Sampling device of pH meter - Google Patents
Sampling device of pH meter Download PDFInfo
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- CN201828421U CN201828421U CN201020583684XU CN201020583684U CN201828421U CN 201828421 U CN201828421 U CN 201828421U CN 201020583684X U CN201020583684X U CN 201020583684XU CN 201020583684 U CN201020583684 U CN 201020583684U CN 201828421 U CN201828421 U CN 201828421U
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- measured medium
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Abstract
The utility model discloses a sampling device of a pH meter. The sampling device comprises a measured medium circulation device and a circulating water cooling device, wherein for the measured medium circulation device, a sampling port at the lower end of a tank body or a pipeline is communicated with a detection pipeline, the detection pipeline is upward and communicated with an inlet of a pH meter installation part, the inlet of the pH meter installation part is communicated with the tank body or the pipeline, and the detection pipeline is provided with a power unit; and for the circulating water cooling device, the detection pipeline is provided with a sleeve which is communicated with a cooling water supplying pipe and a cooling water return pipe. The sampling device of the pH meter can break the limitation on the using temperature of the pH meter, enables the measurement on the pH valve of high-temperature media to be possible, expands the application range of the pH meter, and simultaneously ensures the pH meter to be used for detecting media with proper temperature all the time, so that the service life of the pH meter, especially a probe, is prolonged, and the detection accuracy is guaranteed.
Description
Technical field
The utility model relates to the automation instrument technology field, especially a kind of sampler of pH meter.
Background technology
The medium that the pH value is measured in industrial requirement often has highly acid, strong basicity or has high temperature such as acid mist, salt fog, alkali mist, easy corrosive characteristics of stammering, easily fouling and temperature surpass the maximum operation (service) temperature that pH meter is popped one's head on the pH meter probe, the accuracy that influence is measured and the serviceable life of pH meter.≤ 75 ℃ approximately of the serviceability temperatures of general pH meter probe, if the measured medium temperature surpasses this value, the life-span of then popping one's head in reduces greatly.Simultaneously, the easy fouling of measured medium also will influence the accuracy of measuring.Because the corrosivity of medium, artificial cleaning probe is also very difficult and dangerous.Because some art production process is discontinuity work, during the inoperative, present sampler can make with the working fluid that contacts of popping one's head in and run off, and makes the dry damage of probe in addition.
The utility model content
The technical problems to be solved in the utility model provides a kind of sampler that prolongs the pH meter in pH meter serviceable life.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: it comprises measured medium circulation device and circulating water cooling device; Described measured medium circulation device is to be communicated with the detection pipeline on tank body or lower end of duct sample tap, detects pipeline and upwards is communicated with the inlet of pH meter fabricated section, and the inlet of pH meter fabricated section is communicated with tank body or pipeline, is provided with propulsion system on the detection pipeline; Described circulating water cooling device is to be provided with sleeve pipe on the detection pipeline, and sleeve pipe is communicated with the cooling feed pipe and cools back water pipe.
The further technical scheme of the utility model is to be provided with the probe back purge system on the measured medium circulation device; Described probe back purge system is to be communicated with washpipe between the upper end of cooling feed pipe and detection pipeline, is provided with operation valve on washpipe.
The utility model further technical scheme is to be provided with the probe infiltration apparatus between the inlet that detects pipeline and pH meter fabricated section; Described probe infiltration apparatus is double-U-shaped pipeline, and wherein the inverted U apical position is higher than the installation site, top of popping one's head in the pH meter fabricated section.
The utility model technical conceive is adding circulated water cooling device, probe back purge system and a probe infiltration apparatus on the measured medium circulation device:
Wherein, circulating water cooling device: between the detection pipeline of the measured medium between the pH meter fabricated section, install the chilled water protection sleeve additional at tank body or lower end of duct sample tap, length sleeve is determined according to device height, size, the chilled water upper end flows to, flow out the lower end, thereby the temperature of measured medium is in the scope that probe allows in the interior stopple coupon of assurance protective sleeve;
Probe back purge system: between the upper end of cooling feed pipe and detection pipeline, be communicated with washpipe, like this at measured medium periodic duty stopping period, available water purification counterflush probe, probe is gone up residual corrosivity sample liquid or solid residue to be rinsed out, prolong the serviceable life of popping one's head in, and improve the accuracy of measuring;
The probe infiltration apparatus: this device is double-U-shaped, wherein the inverted U apical position must be higher than the installation site, top of pH meter probe, at measured medium periodic duty stopping period, after back flush, all the time leave certain liquid (guaranteeing that probe is in the clean neutral solution all the time) in the pH meter fabricated section, to prevent pop one's head in fouling and the damage of probe drying, guarantee measuring accuracy and prolong the serviceable life of popping one's head in.
Adopt the beneficial effect that technique scheme produced to be: the utility model can be broken the restriction of pH meter serviceability temperature, make the measurement of high-temperature medium pH value become possibility, expanded the usable range of pH meter, guarantee that simultaneously pH meter is used to detect the measured medium of preference temperature all the time, thereby prolong the serviceable life that pH meter is especially popped one's head in, guarantee accuracy of detection.Facts have proved, former pH meter probe only is about several days to one month in high temperature, fouling, environment following serviceable life of not soaking into, adopt the utility model, especially after adopting probe back purge system and probe infiltration apparatus, can prolong half a year to one in serviceable life year of pH meter probe, save a large amount of funds thus, bring considerable economic, also guaranteed the precision that pH measures simultaneously.The use of back purge system can alleviate maintenance personal's labour intensity and the hazard level that corrosive atmosphere cleans probe down.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment
Shown in Figure 1, the sampler of this pH meter comprises measured medium circulation device, circulating water cooling device, probe back purge system and probe infiltration apparatus.Described measured medium circulation device is to be communicated with to detect pipeline 5 on tank body or lower end of duct sample tap, and detection pipeline 5 extends upward and is communicated with the inlet of pH meter fabricated section, and the inlet of pH meter fabricated section is communicated with tank body or pipeline; So just form the circulation duct of measured medium outside tank body or pipeline, measured medium flows through and enters at detection pipeline 5 accepts the pH detection in the pH meter fabricated section; Propulsion system are installed detecting on the pipeline 5,, think that the circulation of measured medium provides power as pump etc.
Shown in Figure 1, the described circulating water cooling device of the sampler of this pH meter is to be with the sleeve pipe 2 of sealing up and down in the outside of detecting pipeline 5, is communicated with cooling feed pipe 7 and cools back water pipe 4 on sleeve pipe 2; Cool off feed pipe 7 and cool back water pipe 4 and can be communicated with cooling water pipeline.The chilled water of low temperature can flow through cooling feed pipe 7, sleeve pipe 2 successively and cool back water pipe 4 like this, can be to detecting the measured medium cooling of high temperature in the pipeline 5 when flowing through sleeve pipe 2.At cooling feed pipe 7 with cool back and be respectively equipped with water-supply valve 6 and back-water valve (BWV) 3 on the water pipe 4, be used to control the circulation and the flow velocity of chilled water, to reach better cooling-down effect.Shown in Figure 1, the cooling feed pipe 7 in the circulating water cooling device is positioned at the upper end of sleeve pipe 2, cools back the lower end that water pipe 4 is positioned at sleeve pipe 2; Thereby more effective assurance detects the temperature of measured medium in the pipeline 5 in the scope that the pH meter probe allows.
Shown in Figure 1, the described probe back purge system of the sampler of this pH meter is to be communicated with washpipe 9 between the upper end of cooling feed pipe 7 and detection pipeline 5, is provided with operation valve 10 on washpipe 9; At measured medium periodic duty stopping period, promptly available water purification is gone up residual corrosivity sample liquid or solid residue with probe and is rinsed out by cooling off feed pipe 7 and washpipe 9 counterflushes probe, prolongs the serviceable life of popping one's head in, and improves the accuracy of measuring like this.Shown in Figure 1, the link position of washpipe 9 and cooling feed pipe 7 is positioned at the front end of water-supply valve 6; On the cooling feed pipe 7 of washpipe 9 front ends, also be provided with total water valve 8.
Shown in Figure 1, the described probe infiltration apparatus of the sampler of this pH meter is installed between the inlet that detects pipeline 5 and pH meter fabricated section, and promptly measured medium is successively from detecting pipeline, probe infiltration apparatus and the circulation of pH meter fabricated section.Shown in Figure 1, described probe infiltration apparatus is double-U-shaped pipeline 1, and wherein the inverted U apical position is higher than the installation site, top of popping one's head in the pH meter fabricated section; Like this at measured medium periodic duty stopping period, after back flush, all the time leave certain liquid (guaranteeing that probe is in the clean neutral solution all the time) in the pH meter fabricated section,, guarantee the serviceable life of measuring accuracy and prolongation probe to prevent the pop one's head in fouling and dry damage of popping one's head in.
The course of work of the sampler of this pH meter is: during the measured medium periodic duty, measured medium flows out from tank body or pipeline, flows through successively under the effect of propulsion system and detects pipeline 5, double-U-shaped pipeline 1 and pH meter fabricated section, forms the circulation of measured medium; Chilled water flows through cooling feed pipe 7, sleeve pipe 2 successively and cools back the circulation that water pipe 4 forms chilled water; In the meantime, total water valve 8, water-supply valve 6 and back-water valve (BWV) 3 are opened, and operation valve 10 is closed.Measured medium periodic duty stopping period, propulsion system quit work (measured medium stop circulation); Close water-supply valve 6 and back-water valve (BWV) 3, open total water valve 8 and operation valve 10, cooling water flow is crossed washpipe 9, double-U-shaped pipeline 1 and pH meter fabricated section, carries out back flush; Flushing moments later stops flushing work, and closed control valve 10 utilizes the chilled water in the double-U-shaped pipeline 1 that the pH probe is soaked into.
Claims (5)
1. the sampler of a pH meter, it is characterized in that: it comprises measured medium circulation device and circulating water cooling device; Described measured medium circulation device is to be communicated with the detection pipeline on tank body or lower end of duct sample tap, detects pipeline and upwards is communicated with the inlet of pH meter fabricated section, and the inlet of pH meter fabricated section is communicated with tank body or pipeline, is provided with propulsion system on the detection pipeline; Described circulating water cooling device is to be provided with sleeve pipe on the detection pipeline, and sleeve pipe is communicated with the cooling feed pipe and cools back water pipe.
2. the sampler of a kind of pH meter according to claim 1, it is characterized in that: described cooling feed pipe is positioned at the upper end of sleeve pipe; Describedly cool back the lower end that water pipe is positioned at sleeve pipe.
3. the sampler of a kind of pH meter according to claim 1 and 2 is characterized in that: be respectively equipped with water-supply valve and back-water valve (BWV) at the cooling feed pipe on the water pipe with cooling back.
4. the sampler of a kind of pH meter according to claim 1 and 2 is characterized in that: be provided with the probe back purge system on the measured medium circulation device; Described probe back purge system is to be communicated with washpipe between the upper end of cooling feed pipe and detection pipeline, is provided with operation valve on washpipe.
5. the sampler of a kind of pH meter according to claim 1 and 2 is characterized in that: be provided with the probe infiltration apparatus between the inlet that detects pipeline and pH meter fabricated section; Described probe infiltration apparatus is double-U-shaped pipeline, and wherein the inverted U apical position is higher than the installation site, top of popping one's head in the pH meter fabricated section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201020583684XU CN201828421U (en) | 2010-10-29 | 2010-10-29 | Sampling device of pH meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201020583684XU CN201828421U (en) | 2010-10-29 | 2010-10-29 | Sampling device of pH meter |
Publications (1)
Publication Number | Publication Date |
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CN201828421U true CN201828421U (en) | 2011-05-11 |
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Application Number | Title | Priority Date | Filing Date |
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CN201020583684XU Expired - Lifetime CN201828421U (en) | 2010-10-29 | 2010-10-29 | Sampling device of pH meter |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108508170A (en) * | 2018-03-16 | 2018-09-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of high-temperature, high pressure fluid pH value measuring device and method |
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 |
-
2010
- 2010-10-29 CN CN201020583684XU patent/CN201828421U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN108508170A (en) * | 2018-03-16 | 2018-09-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of high-temperature, high pressure fluid pH value measuring device and method |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20110511 |