CN111537582A - PH meter - Google Patents
PH meter Download PDFInfo
- Publication number
- CN111537582A CN111537582A CN202010501092.7A CN202010501092A CN111537582A CN 111537582 A CN111537582 A CN 111537582A CN 202010501092 A CN202010501092 A CN 202010501092A CN 111537582 A CN111537582 A CN 111537582A
- Authority
- CN
- China
- Prior art keywords
- transmission rod
- electrode
- rod
- meter
- extension bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000011010 flushing procedure Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 15
- 239000013078 crystal Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 3
- 229940001584 sodium metabisulfite Drugs 0.000 description 3
- 235000010262 sodium metabisulphite Nutrition 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-N disulfurous acid Chemical compound OS(=O)S(O)(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/302—Electrodes, e.g. test electrodes; Half-cells pH sensitive, e.g. quinhydron, antimony or hydrogen electrodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/38—Cleaning of electrodes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a pH meter, which comprises an electrode, an extension bar, a mounting conduit and a transmission rod; the electrode is embedded into one end of the extension bar, the extension bar is embedded into the transmission rod, and the transmission rod is embedded into the installation guide pipe; the signal wire is connected with the electrode; the installation conduit is connected with a ball valve; the inner side of the installation guide pipe is provided with an inner screw thread which is assembled with a transmission rod provided with an outer screw thread; a flushing water interface is arranged between the ball valve and the inner thread; one end of the transmission rod is provided with a drill bit, and the other end of the transmission rod is provided with a rotary rod. In the technical scheme, the extension rod also has a liquid sealing function, has a certain safety distance with the liquid level and prevents liquid from running out; the drill bit is used for drilling the crystal wrapped in the using process; the ball valve has the functions of closing the channel in the maintenance process, avoiding liquid from flowing out and blocking fluid from exchanging with each other; the maintenance process of the pH meter is carried out, the damage rate of the electrode of the pH meter is reduced, and the service life is prolonged.
Description
Technical Field
The invention relates to a component in the fields of chemical industry and environmental protection, in particular to a pH meter for measuring the pH value of a solution.
Background
The control of the pH value of the solution in the production of sodium metabisulfite is the key to realize the quality of the target product. In actual production, a probe of the pH meter is easily burnt, the maintenance process is difficult, the maintenance process easily causes permanent damage to the probe, and the experience of a client is poor. The technical analysis considers that the blocking phenomenon is one of the attributes of sodium metabisulfite products, if the structure can be replaced, the maintenance difficulty can be obviously reduced, and the damage to components and parts in the maintenance process can be reduced. Economic analysis also shows that the cost of the pH probe is far higher than that of the auxiliary material. All indexes, causes and the like are clear, but no good implementation measures exist at present.
The desulfurizing tower pH meter periodical automatic cleaning device provided by the patent CN201921058501.X, the pH meter intelligent cleaning calibration device provided by the patent CN201810770030.9, the patent CN201921160172.X, the breakage-proof telescopic on-line pH meter and the like have respective advantages, a design vision can be realized in an environment difficult to crystallize, and the production environment of sodium metabisulfite is not met.
The patent CN201921130877.7 discloses a PH meter plugging electrode which is convenient to use, and the electrode can be forcibly pulled out by mechanical force, practice proves that the technology is applied to a pyrosulfurous acid production environment, and the damage rate of the PH meter electrode in operation is extremely high, and the result is not desired by all parties.
Therefore, there is a need for an improvement to existing pH meters to increase the useful life of the pH meter and reduce the rate of damage to the pH meter electrodes or pH meter probes.
Disclosure of Invention
The invention aims to provide a pH meter, which can obviously reduce the damage rate of a pH meter electrode in a maintenance link and prolong the service life.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the pH meter comprises an electrode, an extension bar, an installation conduit and a transmission rod;
the electrode is embedded into one end of an extension bar, the extension bar is embedded into the transmission rod, and the transmission rod is embedded into the installation guide pipe;
the signal wire is connected with the electrode; the mounting conduit is connected with a ball valve; the inner side of the installation guide pipe is provided with an inner screw thread, and the transmission rod provided with an outer screw thread is assembled through the inner screw thread; a flushing water interface is arranged between the ball valve and the inner thread;
one end of the transmission rod is provided with a drill bit, and the other end of the transmission rod is provided with a rotary rod.
In the technical scheme, the extension rod plays a role of liquid seal, has a certain safety distance with the liquid level and prevents liquid from running out; the drill bit is used for drilling a crystal wrapped on the pH meter in use; the ball valve has the functions of closing the channel in the maintenance process, avoiding liquid from flowing out and blocking fluid from exchanging with each other; the installation guide pipe is mainly convenient to install and plays a guiding role in parts such as an extension bar, a drill bit and the like; the transmission rod applies force to the drill bit to drill the crystal; the rotary rod plays a role in rotation and provides a power source for the transmission rod.
In the maintenance process: rotating the rotary rod, making forward spiral motion of the drill bit under mechanical force to further crush the crystal wrapped on the extension rod and the crystal wrapped on the electrode, separating the crystal pasted on the electrode from the electrode when the drill bit is not forced or moves to the other end of the electrode head, and independently pulling out the extension rod or pulling out the transmission rod and the extension rod together to clean the electrode; or the transmission rod and the extension rod are pulled to the position between the ball valve and the inner screw thread together, washing water (a washing water interface) is started, the electrode is washed, and after the electrode maintenance is finished, all components are recovered.
By adopting the technical scheme, the damage rate of the pH meter electrode or the pH meter probe is reduced and the service life is prolonged after the maintenance of the pH meter is carried out; the transmission rod is preferably made of stainless steel with excellent acid corrosion resistance.
Preferably, a glan head is embedded at the other end of the extension bar; the signal wire starts from one end of the electrode and sequentially passes through the lengthening rod and the Glan head; the gland head is mainly used for sealing.
Preferably, the radius of the inscribed circle of the drill bit is larger than or equal to the inner diameter of the transmission rod, and the difference between the inner diameter of the circumscribed circle of the drill bit and the outer diameter of the transmission rod is not larger than 16 mm.
By adopting the technical scheme, the drill bit is a part of the transmission rod; or two mutually independent elements, when the drill bit and the transmission rod are two mutually independent elements, the transmission rod and the drill bit can be stably connected without causing the drill bit to fall off.
Preferably, the transmission rod is provided with an external thread tooth; the installation guide pipe is provided with inner screw threads, and the length of the outer screw threads is at least greater than the distance from the flange to the wall surface of the container; the flange is disposed at an end of the mounting conduit.
The flange is used for fixedly mounting the guide pipe.
Preferably, the length of the inner thread tooth is not less than 3 threads.
Preferably, the distance from the ball valve to the end side of the mounting conduit away from the flange is at least greater than 5 cm; and the flushing water interface is positioned on the mounting conduit at the side of the ball valve and the mounting conduit far away from the flange.
Preferably, the electrode extends out of one end of the extension bar by not less than 1 cm.
Preferably, the maximum outer diameter of the outer section of the electrode exposed from the extension rod is no greater than the minimum outer diameter of the extension rod.
Preferably, the electrode is mechanically connected to the extension rod.
Preferably, the extension bar and the transmission rod are connected through threads to realize sealing; or the extension bar and the transmission rod are sealed by flexible connection, and the inner diameter of the transmission rod is at least 0.2mm larger than the outer diameter of the extension bar.
The inner diameter of the transmission rod is different from the outer diameter of the extension rod, and the optimal difference is 0.3-0.5 mm.
The invention has the following beneficial effects: when the electrode is stuck with paste by the crystal and dies and need the maintenance, can extract the probe or extract to between ball valve and the interior screw thread through rotatory swing arm, utilize the sparge water can accomplish the washing maintenance to electrode or probe, the simple operation, factor of safety is high.
Drawings
The following further detailed description of embodiments of the invention is made with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of the overall structure of a pH meter according to the present invention;
FIG. 2 is a schematic view of the use of the pH meter according to the present invention;
in the figure: 1-electrode, 2-extension bar, 3-drill bit, 4-flange, 5-ball valve, 6-flushing water interface, 7-installation conduit, 8-inner screw thread, 9-outer screw thread, 10-transmission rod, 11-rotary rod, 12-gram head, 13-signal line; 14-pH meter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The drawings in the embodiments of the invention: the different types of hatching in the figures are not given the national standards, do not require the material of the elements, and distinguish between cross-sectional views of the elements in the figures.
As shown in fig. 1, the pH meter 14 of the present embodiment includes an electrode 1, an extension bar 2, a mounting tube 7 and a transmission rod 10;
the electrode 1 is embedded into one end of an extension bar 2, the extension bar 2 is embedded on the transmission rod 10, and the transmission rod 10 is embedded on the installation guide pipe 7;
a signal line 13 is connected to the electrode 1; the mounting conduit 7 is connected with a ball valve 5; the transmission rod 10 is provided with an outer screw thread 9; the installation guide pipe 7 is provided with an inner screw thread 8, and the length of the outer screw thread 9 is at least greater than the distance from the flange 4 to the wall surface of the container; the flange 4 is arranged at the end of the mounting tube 7. The inner screw teeth 8 are connected with the outer screw teeth 9 in a matching way, and the length of the inner screw teeth 8 is not less than 3; the distance from the ball valve 5 to the end side of the mounting conduit 7 far away from the flange 4 is at least more than 5 cm; the flushing water connection 6 is located on the mounting pipe 7 at the end of the ball valve 5 and the mounting pipe 7 remote from the flange 4.
The driving rod 10 has a drill 3 at one end and a rotary rod 11 at the other end.
A Glan head 12 is embedded at the other end of the extension bar 2; the signal wire 13 starts from one end of the electrode 1 and sequentially passes through the extension bar 2 and the Glan head 12.
The radius of an inscribed circle of the drill bit 3 is larger than or equal to the inner diameter of the transmission rod 10, and the difference between the inner diameter of an circumscribed circle of the drill bit 3 and the outer diameter of the transmission rod 10 is not larger than 6 mm.
The external thread 9 is arranged at one end of the transmission rod 10 close to the rotary rod 11; the inner screw thread 8 is arranged at one end of the installation guide pipe 7, and a flange 4 is arranged at the other end, far away from the inner screw thread 8, of the installation guide pipe 7;
the length of the outer thread 9 is greater than the distance from the ball valve 5 to the outer side face of the flange 4, so that the extension rod has enough distance to extend outwards; the length of the inner thread tooth 8 is not less than 3 threads; the ball valve 5 is close to the end side of the flange 4; the flushing water connection 6 is close to the ball valve 5.
The electrode 1 extends out of one end of the extension bar 2 by at least 1cm, the maximum outer diameter of the electrode 1 exposed out of the extension bar 2 is not larger than the minimum outer diameter of the extension bar 2, and in the embodiment, the end of the electrode 1 extending out of the extension bar 2 is optimally 3-6 cm; the electrode 1 is mechanically connected with the extension bar 2; the extension bar 2 and the transmission rod 10 are connected through threads to realize sealing; or the extension bar 2 and the transmission rod 10 are sealed by flexible connection, and the inner diameter of the transmission rod 10 is at least 0.2mm larger than the outer diameter of the extension bar 2.
Original parts such as the extension bar 2, the installation guide pipe 7, the transmission rod 10 and the like are all round steel pipes, and stainless steel materials with better acid corrosion resistance are preferably selected.
In the maintenance process: rotating the rotary rod 11, moving the transmission rod 10, making the drill bit 3 make forward spiral motion under mechanical force, further crushing the crystal pasted on the extension rod 2 and the electrode 1 (as shown in figure 2), when the drill bit 3 is not forced or moved to the electrode head of the electrode 1, realizing separation between the crystal pasted on the electrode 1 and the electrode 1, namely independently pulling out the extension rod 2 or pulling out the transmission rod 10 and the extension rod 2 together, and cleaning the electrode 1; or the transmission rod 10 and the extension rod 2 are pulled out to the position between the ball valve 5 and the inner screw thread 8, the washing water (the washing water interface 6) is opened, water flows in from the washing water interface 6, the electrode 1 is cleaned, and after the maintenance of the electrode 1 is finished, all components are recovered.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A pH meter is characterized by comprising an electrode, an extension bar, a mounting conduit and a transmission rod;
the electrode is embedded into one end of an extension bar, the extension bar is embedded into the transmission rod, and the transmission rod is embedded into the installation guide pipe;
the signal wire is connected with the electrode; the mounting conduit is connected with a ball valve; the inner side of the installation guide pipe is provided with an inner screw thread, and the transmission rod provided with an outer screw thread is assembled through the inner screw thread; a flushing water interface is arranged between the ball valve and the inner thread;
one end of the transmission rod is provided with a drill bit, and the other end of the transmission rod is provided with a rotary rod.
2. The pH meter according to claim 1, wherein a glan head is fitted in the other end of the extension bar; the signal wire starts from one end of the electrode and sequentially penetrates through the lengthening rod and the Glan head.
3. The pH meter of claim 1, wherein the radius of the inscribed circle of the drill bit is equal to or greater than the inner diameter of the drive rod, and the difference between the inner diameter of the circumscribed circle of the drill bit and the outer diameter of the drive rod is no greater than 16 mm.
4. The pH meter according to claim 1, wherein the transmission rod is provided with an external thread; the installation guide pipe is provided with inner screw threads, and the length of the outer screw threads is at least larger than the distance from the flange to the wall surface of the container.
5. The pH meter of claim 4, wherein the inner wire teeth are no less than 3 wires in length.
6. The pH meter of claim 5, wherein the distance from the ball valve to the end of the mounting conduit remote from the flange is at least greater than 5 cm; and the flushing water interface is positioned on the mounting conduit at the side of the ball valve and the mounting conduit far away from the flange.
7. The pH meter according to any one of claims 1 to 6, wherein the electrode is mechanically connected to the extension rod.
8. The pH meter of claim 7, wherein said electrode extends at least 1cm beyond an end of said extension rod.
9. The pH meter of claim 8, wherein the maximum outer diameter of the outer section of the electrode exposed by the extension rod is no greater than the minimum outer diameter of the extension rod.
10. The pH meter of claim 9, wherein the extension rod and the transmission rod are sealed by a threaded connection; or the extension bar and the transmission rod are sealed by flexible connection, and the inner diameter of the transmission rod is at least 0.2mm larger than the outer diameter of the extension bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501092.7A CN111537582A (en) | 2020-06-04 | 2020-06-04 | PH meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501092.7A CN111537582A (en) | 2020-06-04 | 2020-06-04 | PH meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111537582A true CN111537582A (en) | 2020-08-14 |
Family
ID=71979889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010501092.7A Withdrawn CN111537582A (en) | 2020-06-04 | 2020-06-04 | PH meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111537582A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172736A (en) * | 2003-12-15 | 2005-06-30 | Dkk Toa Corp | pH measurement electrode |
| CN203232039U (en) * | 2013-05-27 | 2013-10-09 | 唐山三友化工股份有限公司 | Device for installing and cleaning probe of pH-value analyzer conveniently |
| CN204679128U (en) * | 2015-06-05 | 2015-09-30 | 合肥中亚传感器有限责任公司 | A kind of intelligent electromagnetic flowmeter |
| CN206594095U (en) * | 2017-03-23 | 2017-10-27 | 瓮福紫金化工股份有限公司 | A kind of analyzer installs attending device online |
| CN207980996U (en) * | 2018-02-06 | 2018-10-19 | 武汉中粮食品科技有限公司 | A kind of starch milk tank with automatic cleaning PH meters |
| CN210269701U (en) * | 2019-07-18 | 2020-04-07 | 青岛三华泰工程技术有限公司 | PH meter plugging electrode convenient to use |
| CN212228799U (en) * | 2020-06-04 | 2020-12-25 | 江苏德义通环保科技有限公司 | PH meter |
-
2020
- 2020-06-04 CN CN202010501092.7A patent/CN111537582A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172736A (en) * | 2003-12-15 | 2005-06-30 | Dkk Toa Corp | pH measurement electrode |
| CN203232039U (en) * | 2013-05-27 | 2013-10-09 | 唐山三友化工股份有限公司 | Device for installing and cleaning probe of pH-value analyzer conveniently |
| CN204679128U (en) * | 2015-06-05 | 2015-09-30 | 合肥中亚传感器有限责任公司 | A kind of intelligent electromagnetic flowmeter |
| CN206594095U (en) * | 2017-03-23 | 2017-10-27 | 瓮福紫金化工股份有限公司 | A kind of analyzer installs attending device online |
| CN207980996U (en) * | 2018-02-06 | 2018-10-19 | 武汉中粮食品科技有限公司 | A kind of starch milk tank with automatic cleaning PH meters |
| CN210269701U (en) * | 2019-07-18 | 2020-04-07 | 青岛三华泰工程技术有限公司 | PH meter plugging electrode convenient to use |
| CN212228799U (en) * | 2020-06-04 | 2020-12-25 | 江苏德义通环保科技有限公司 | PH meter |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200814 |
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| WW01 | Invention patent application withdrawn after publication |