CN208098041U - A kind of pH value accurate detection device under high temperature system - Google Patents
A kind of pH value accurate detection device under high temperature system Download PDFInfo
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- CN208098041U CN208098041U CN201820375525.7U CN201820375525U CN208098041U CN 208098041 U CN208098041 U CN 208098041U CN 201820375525 U CN201820375525 U CN 201820375525U CN 208098041 U CN208098041 U CN 208098041U
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Abstract
A kind of pH value accurate detection device under high temperature system, including：Reaction kettle, measurement tank cooling device, pH detector, blow-down pipe and surge tank.Open vacuum valve and valve, the vacuum that vacuum pump set generates makes to measure by connecting tube generates negative pressure in tank, to which the material in reaction kettle is entered in measurement tank by material delivery pipe, when measuring the liquid level arrival designated position in tank, vacuum valve and valve are closed, measurement tank cooling device cools down the material in measurement tank, after being cooled to assigned temperature, pH detector is opened, the pH value of the material in measurement tank is detected.After measurement, emptying valve and valve are opened, ambient air outside is entered in measurement tank by blow-down pipe, so that material be made to flow back into reaction kettle again.Since measurement tank is sealing structure, smell will not be generated when detecting pH value, improves operating environment.The excessively high phenomenon for causing pH detector error larger of temperature is avoided, the accuracy of testing result is improved.
Description
Technical field
The utility model relates to chemical machinery fields, and in particular to the pH value accurate detection device under a kind of high temperature system.
Background technique
Two hydration hexa-methylene 1,6- bisthiosulfate disodium salts（HTS）It needs often to detect reaction during synthesis
The pH value of system, the synthesis of HTS are generally reacted under conditions of 80-110 DEG C, and solvent is generally the mixture of water and alcohol.
Existing pH value detection method is usually two methods of the detection of artificial feeding pH test paper and online pH detector test,
Artificial feeding pH test paper detection, which can open reaction system in artificial feeding, causes disordered exhaust gas to discharge, and pollutes workshop condition,
Naked eyes, which read testing result, will lead to that resultant error is larger, and online pH detector applies in general to the pH inspection of reaction system under room temperature
It surveys, biggish error can be generated when temperature is higher than 80 DEG C, cause measuring result error larger.
Summary of the invention
The utility model it is accurate to provide a kind of measurement, and improve operating environment to overcome the shortcomings of the above technology
PH value accurate detection device under high temperature system.
The utility model overcomes the technical solution used by its technical problem to be：
A kind of pH value accurate detection device under high temperature system, including：
Reaction kettle, the upper end are provided with closed measurement tank, and material delivery pipe lower end is located in reaction kettle, the upper end and survey
Measuring tank is connected, and is provided with valve on the material delivery pipe；
Tank cooling device is measured, is set on measurement tank, it is cooling for the material in tank will to be measured；
PH detector is set on measurement tank, for detecting the pH value of material in measurement tank；
Blow-down pipe is connected to the upper end of measurement tank, is equipped with emptying valve on the blow-down pipe；
Surge tank, surrounding is closed, and the upper end is connected by vacuum tube with vacuum pump set, and connecting tube one end is upper with measurement tank
End is connected, and the other end is connected with the upper end of surge tank, is equipped with vacuum valve in the connecting tube.
Above-mentioned measurement tank cooling device includes around the spiral cooling tube for being set to measurement tank periphery, the cooling
The two-port of pipe is connected with cool brine pump.
It further include being installed on measurement tank for detecting the thermometer of temperature of charge for the ease of measuring temperature.
It further include being installed on measurement tank for detecting the liquidometer of material liquid level for the ease of measuring liquid level.
The utility model has the beneficial effects that：Vacuum valve and valve are opened, the vacuum that vacuum pump set generates passes through connection
Pipe, which makes to measure, generates negative pressure in tank, so that the material in reaction kettle is entered in measurement tank by material delivery pipe, when in measurement tank
Liquid level when reaching designated position, close vacuum valve and valve, measurement tank cooling device carries out the material in measurement tank cold
But, after being cooled to assigned temperature, pH detector is opened, the pH value of the material in measurement tank is detected.After measurement,
Emptying valve and valve are opened, ambient air outside is entered in measurement tank by blow-down pipe, so that material be made to flow back into again instead
It answers in kettle.Since measurement tank is sealing structure, smell will not be generated when detecting pH value, improves operating environment.Utilize measurement tank
Cooling device reduces the operating temperature of pH detector, avoids the excessively high phenomenon for causing pH detector error larger of temperature, mentions
The high accuracy of testing result.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1. reaction kettles 2. measure the emptying of 3. cooling tube of tank, 4. valve, 5. material delivery pipe 6.pH detector 7.
Pipe 8. is vented 9. thermometer of valve, 10. liquidometer, 11. connecting tube, 12. vacuum valve, 13. surge tank, 14. vacuum tube.
Specific embodiment
1 pair of the utility model is described further with reference to the accompanying drawing.
A kind of pH value accurate detection device under high temperature system, including：Reaction kettle 1, the upper end are provided with closed measurement
Tank 2,5 lower end of material delivery pipe are located in reaction kettle 1, and the upper end is connected with measurement tank 2, are provided with valve on material delivery pipe 5
Door 4；Tank cooling device is measured, is set on measurement tank 2, it is cooling for the material in tank 2 will to be measured；PH detector 6, setting
In measuring on tank 2, for detecting the pH value of material in measurement tank 2；Blow-down pipe 7 is connected to the upper end of measurement tank 2, blow-down pipe 7
On be equipped with emptying valve 8；Surge tank 13, surrounding is closed, and the upper end is connected by vacuum tube 14 with vacuum pump set, connecting tube 11
One end is connected with the upper end of measurement tank 2, and the other end is connected with the upper end of surge tank 13, is equipped with vacuum valve in connecting tube 11
12.When needing pH value determination, vacuum valve 12 and valve 4 are opened, the vacuum that vacuum pump set generates makes to measure by connecting tube 11
Negative pressure is generated in tank 2, so that the material in reaction kettle 1 is entered in measurement tank 2 by material delivery pipe 5, the liquid in measurement tank 2
When position reaches designated position, vacuum valve 12 and valve 4 are closed, measurement tank cooling device carries out the material in measurement tank cold
But, after being cooled to assigned temperature, pH detector 6 is opened, the pH value of the material in measurement tank 2 is detected.Measurement terminates
Afterwards, emptying valve 8 and valve 4 are opened, ambient air outside is entered in measurement tank 2 by blow-down pipe 7, so that material be made to flow again
It returns in reaction kettle 1.Since measurement tank 2 is sealing structure, smell will not be generated when detecting pH value, improves operating environment.Benefit
The operating temperature of pH detector 6 is reduced with measurement tank cooling device, avoids that temperature is excessively high to cause 6 error of pH detector larger
The phenomenon that, improve the accuracy of testing result.Surge tank 13 is set first is that the gas generated in reaction kettle 1 can be made to buffer
Storage is condensed in tank 13, is prevented from directly entering the corrosion in vacuum pump set to vacuum pump set.In addition if when the object in measurement tank 2
When material sucking is excessive, material can also be stored by surge tank 13.
Preferably, measurement tank cooling device includes surrounding the spiral cooling tube 3 for being set to 2 periphery of measurement tank, cold
But the two-port of pipe 3 is connected with cool brine pump.Cool brine is sent into cooling tube 3 when cool brine pump work and realizes circulation, due to
Cooling tube 3 is peripheral around measurement tank 2 is wrapped in, therefore it can will measure temperature of charge in tank 2 and absorb, to realize reduction object
The effect of material temperature degree.It can also include being installed on measurement tank 2 for detecting the thermometer 9 of temperature of charge.It can by thermometer 9
To facilitate the temperature of charge observed and measured in tank 2, when temperature drops to 40 DEG C or less, it is then turned on pH detector.Can also include
It is installed on measurement tank 2 for detecting the liquidometer 10 of material liquid level.It can be convenient by liquidometer 10 and learn object in measurement tank 2
The liquid level of material is closed vacuum valve 12 and valve 4 when liquid level reaches measurement 2 half height of tank, is surveyed so that it is guaranteed that entering
Material in measuring tank 2 will not excess or very few.
Claims (4)
1. the pH value accurate detection device under a kind of high temperature system, which is characterized in that including：
Reaction kettle（1）, the upper end is provided with closed measurement tank（2）, material delivery pipe（5）Lower end is located at reaction kettle（1）It is interior,
Upper end and measurement tank（2）It is connected, the material delivery pipe（5）On be provided with valve（4）；
Tank cooling device is measured, measurement tank is set to（2）On, for tank will to be measured（2）Interior material is cooling；
PH detector（6）, it is set to measurement tank（2）On, for detecting measurement tank（2）The pH value of interior material；
Blow-down pipe（7）, it is connected to measurement tank（2）Upper end, the blow-down pipe（7）On emptying valve is installed（8）；And
Surge tank（13）, surrounding is closed, and the upper end passes through vacuum tube（14）It is connected with vacuum pump set, connecting tube（11）One end and survey
Measuring tank（2）Upper end be connected, the other end and surge tank（13）Upper end be connected, the connecting tube（11）On vacuum valve is installed
Door（12）.
2. the pH value accurate detection device under high temperature system according to claim 1, it is characterised in that：The measurement tank is cold
But device includes surrounding to be set to measurement tank（2）The spiral cooling tube of periphery（3）, the cooling tube（3）Two-port
It is connected with cool brine pump.
3. the pH value accurate detection device under high temperature system according to claim 1, it is characterised in that：It further include being installed on
Measure tank（2）On for detecting the thermometer of temperature of charge（9）.
4. the pH value accurate detection device under high temperature system according to claim 1, it is characterised in that：It further include being installed on
Measure tank（2）On for detecting the liquidometer of material liquid level（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375525.7U CN208098041U (en) | 2018-03-20 | 2018-03-20 | A kind of pH value accurate detection device under high temperature system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820375525.7U CN208098041U (en) | 2018-03-20 | 2018-03-20 | A kind of pH value accurate detection device under high temperature system |
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| CN208098041U true CN208098041U (en) | 2018-11-16 |
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| CN201820375525.7U Active CN208098041U (en) | 2018-03-20 | 2018-03-20 | A kind of pH value accurate detection device under high temperature system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791178A (en) * | 2021-09-16 | 2021-12-14 | 中国恩菲工程技术有限公司 | Sampling detection device and reaction kettle with same |
-
2018
- 2018-03-20 CN CN201820375525.7U patent/CN208098041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791178A (en) * | 2021-09-16 | 2021-12-14 | 中国恩菲工程技术有限公司 | Sampling detection device and reaction kettle with same |
| CN113791178B (en) * | 2021-09-16 | 2024-01-26 | 中国恩菲工程技术有限公司 | Sampling detection device and reaction kettle with same |
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