CN114858253A - Automatic calibration tank - Google Patents
Automatic calibration tank Download PDFInfo
- Publication number
- CN114858253A CN114858253A CN202210544560.8A CN202210544560A CN114858253A CN 114858253 A CN114858253 A CN 114858253A CN 202210544560 A CN202210544560 A CN 202210544560A CN 114858253 A CN114858253 A CN 114858253A
- Authority
- CN
- China
- Prior art keywords
- constant volume
- liquid
- liquid level
- level sensor
- cavity
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 132
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 230000002572 peristaltic effect Effects 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 11
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/13—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters using a reference counter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an automatic calibration tank which comprises a constant volume waste discharge tank and at least two groups of liquid level sensors, wherein the constant volume waste discharge tank comprises an internal liquid adding cavity and a constant volume cavity, the liquid adding cavity is communicated with the bottom of the constant volume cavity, a liquid adding opening is formed in the top of the liquid adding cavity, the constant volume opening is formed in the top of the constant volume cavity, the liquid level sensors are arranged on the side wall of the constant volume cavity from bottom to top at intervals, and the liquid level sensors adopt infrared liquid level sensors. When the liquid level arrived first group level sensor, triggered its rotation number of turns and the timing that begins to count the peristaltic pump, when the liquid level arrived another group level sensor, can make statistics of the peristaltic pump at this section total rotation number of turns and the liquid feeding time of liquid feeding in-process, alright automatic statistics play the liquid feeding volume that the peristaltic pump rotated the round and the liquid feeding speed of peristaltic pump.
Description
Technical Field
The invention relates to the technical field of experimental instruments, in particular to an automatic calibration tank.
Background
The deformation of a peristaltic pump tube of the peristaltic pump in a special environment is large, so that the liquid adding precision is influenced, and the peristaltic pump tube needs to be replaced at regular time and calibrated at regular time under the condition of high precision requirement, particularly, a special tube such as a Teflon tube has large deformation and high calibration frequency, and the conventional calibration mode on the market is regular manual calibration, which wastes manpower and time. Therefore, the applicant has devised an automatic calibration tank.
Disclosure of Invention
The invention aims to provide an automatic calibration tank which can automatically calibrate the liquid adding precision of a peristaltic pump and measure the liquid adding speed of the peristaltic pump.
In order to achieve the above purpose, the solution of the invention is: the utility model provides an automatic calibration groove, includes that the useless groove is arranged to the constant volume and two sets of at least level sensor, establish in the useless inslot of constant volume with liquid chamber and constant volume chamber, with the liquid chamber with constant volume chamber bottom intercommunication, the filling opening is seted up at the top in liquid chamber, the constant volume mouth is seted up at constant volume chamber top, level sensor is installed by lower supreme interval the lateral wall in chamber is decided.
Further, the liquid level sensor adopts an infrared liquid level sensor.
Furthermore, the liquid level sensors are respectively provided with three groups from bottom to top, and the three groups comprise an infrared liquid level sensor A, an infrared liquid level sensor B and an infrared liquid level sensor C.
Further, the waste discharge groove with constant volume is arranged on the side wall of the constant volume cavity, a mounting plate is arranged outside the mounting groove, and two symmetrical plugs are arranged on the mounting plate. The plug is respectively provided with a liquid level sensor, and when the mounting plate is inserted into the mounting groove, the liquid level sensors can be embedded into the side walls of the fixed cavity.
Further, the bottom of the constant volume waste discharge groove is provided with a waste discharge port.
Further, the waste discharge port is communicated with the liquid adding cavity and the constant volume cavity.
Further, a liquid discharge pipe is arranged at the waste discharge port.
Furthermore, a pinch valve is arranged on the liquid discharge pipe.
After the scheme is adopted, the invention has the beneficial effects that:
the invention relates to an automatic calibration tank, wherein a liquid adding cavity and a constant volume cavity which are communicated form a communicating vessel structure. The level sensor sets up two sets ofly at least, when the liquid level reachd first group level sensor, triggers its rotation number of turns and the timing that begins to count the peristaltic pump, when the liquid level reachd another group level sensor, can make statistics of the peristaltic pump at this section total rotation number of turns of liquid feeding in-process and liquid feeding time, alright automatic statistics play the liquid feeding volume that the peristaltic pump rotated the round and the liquid feeding speed of peristaltic pump, consequently, set up two sets of level sensor and just can automatic calibration peristaltic pump's liquid feeding precision or measure the liquid feeding speed of peristaltic pump.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic perspective exploded view of the present invention;
fig. 3 is a schematic perspective view of the present invention.
Description of reference numerals:
1. a constant volume waste discharge tank; 11. a liquid feeding cavity; 12. a holding cavity is fixed; 13. mounting grooves; 14. mounting a plate; 15. a plug 2 and a liquid level sensor; 21. a, an infrared liquid level sensor; 22. b, an infrared liquid level sensor; 23. c, infrared liquid level sensor; 3. a liquid filling port; 4. fixing the volume of the opening; 5. a pinch valve; 6. a liquid discharge pipe; 7. a waste discharge port; 8. and (4) adding a liquid needle.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
The invention provides an automatic calibration tank, which comprises a constant volume waste discharge tank 1 and at least two groups of liquid level sensors 2, wherein a liquid adding cavity 11 and a constant volume cavity 12 are arranged in the constant volume waste discharge tank 1, the liquid adding cavity 11 is communicated with the bottom of the constant volume cavity 12, a liquid adding opening 3 is formed in the top of the liquid adding cavity 11, constant volume openings 4 are formed in the top of the constant volume cavity 12, the liquid level sensors 2 are arranged on the side wall of the constant volume cavity 12 from bottom to top at intervals, the liquid level sensors 2 are infrared liquid level sensors and are not in contact with liquid, and the liquid level sensors 2 can be prevented from being corroded. When the liquid level arrived first group level sensor 2, triggered its rotation number of turns and the timing that begins to count the peristaltic pump, when the liquid level arrived another group level sensor 2, can make statistics of the peristaltic pump at this section total rotation number of turns and liquid feeding time of liquid feeding in-process, alright automatic statistics play the liquid feeding volume and the liquid feeding speed that the peristaltic pump rotated the round. Therefore, the liquid adding precision of the peristaltic pump or the liquid adding speed of the peristaltic pump can be automatically calibrated by arranging the two groups of liquid level sensors 2. As a preferable scheme, the liquid level sensors 2 of this embodiment are provided with three sets, from bottom to top, the infrared liquid level sensor 21 a, the infrared liquid level sensor 22B and the infrared liquid level sensor 23C, if any one set of the liquid level sensors 2 is damaged, the other two sets of the liquid level sensors 2 which are not damaged can still work, the automatic calibration and measurement are not affected, and the automatic calibration or measurement of the next section can be continued, and the average value of the two calibrations or measurements is taken, so that the accuracy can be increased.
As shown in fig. 2, the constant volume waste discharge tank 1 is provided with a mounting groove 13 on the side wall of the constant volume cavity 12, a mounting plate 14 is arranged outside the mounting groove 13, and two symmetrical plugs 15 are arranged on the mounting plate 14. The plugs 15 are respectively provided with a liquid level sensor 2, and when the mounting plate 14 is inserted into the mounting groove 13, the liquid level sensors 2 can be embedded into the side wall of the definite volume cavity 12.
As shown in fig. 1, the bottom of the constant volume waste discharge tank 1 is provided with a waste discharge port 7, the waste discharge port 7 is communicated with the liquid adding cavity 11 and the constant volume cavity 12, a liquid discharge pipe 6 is arranged at the waste discharge port 7, and the liquid discharge pipe 6 is provided with a pinch valve 5.
The calibration process of the invention is as follows:
the first stage of calibration: at first, open pinch valve 5 and press from both sides tight fluid-discharge tube 6, make waste discharge port 7 close, prevent liquid discharge, then start peristaltic pump (not shown in the figure) and begin the liquid feeding, liquid feeding needle 8 drips into liquid from filling opening 3 and gets into liquid feeding chamber 11, liquid feeding chamber 11 and constant volume chamber 12 that are linked together constitute the linker structure, can know by the principle of linker, liquid can be from bottom fluid channeling to constant volume chamber 12 in liquid feeding chamber 11, no matter the liquid feeding is fast slow, the liquid level in constant volume chamber 12 all is the same with the liquid level in liquid feeding chamber 11, and the liquid level in constant volume chamber 12 is steady, can not produce water wave or bubble, so can not influence measurement accuracy. When liquid level liquid feeding to A infrared level sensor 21, trigger A infrared level sensor 21 and begin to count the number of turns of rotation of peristaltic pump, when liquid level liquid feeding to B infrared level sensor 22, trigger B infrared level sensor 22 and count the peristaltic pump at this section liquid feeding in-process total number of turns of rotation, the liquid level is the fixed value from A infrared level sensor 21 liquid feeding to B infrared level sensor 22's liquid feeding volume, and this value is known, alright automatic statistics play peristaltic pump rotates the liquid feeding volume of round this moment.
And (3) second-stage calibration: on the basis of first section calibration, the number of turns of rotation of the peristaltic pump is counted from the liquid level to the B infrared liquid level sensor 22, when liquid is continuously added to the liquid level and reaches the C infrared liquid level sensor 23, the C infrared liquid level sensor 23 is triggered to count the number of turns of rotation of the peristaltic pump in the first section of liquid adding process, and the number of turns of rotation of the peristaltic pump in the second section of liquid adding process can be automatically counted because the liquid adding amount in the first section of calibration process is a fixed value.
As a preferred scheme, the system automatically counts the average value of the two times of liquid adding precision, the precision of the peristaltic pump can be effectively calibrated, the pinch valve 5 is closed after the calibration is finished, and the liquid is discharged from the constant volume waste discharge tank 1 through the waste discharge port 7.
The process of measuring peristaltic pump liquid feeding speed is the same with above-mentioned calibration process, when liquid level liquid feeding to A infrared level sensor 21, triggers A infrared level sensor 21 and begins the timing, when liquid level liquid feeding to B infrared level sensor 22, triggers B infrared level sensor 22 and counts the liquid feeding time of this section liquid feeding in-process, alright automatic statistics goes out peristaltic pump per minute's liquid feeding volume, liquid feeding speed promptly.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.
Claims (8)
1. An automatic calibration tank, its characterized in that: waste discharge groove and at least two sets of level sensor are arranged including the constant volume, establish in the waste discharge groove of constant volume with the sap cavity and constant volume chamber, with the sap cavity with constant volume chamber bottom intercommunication, the filling opening is seted up at the top in sap cavity, constant volume mouth is seted up at constant volume chamber top, level sensor is installed by lower supreme interval the lateral wall in constant volume chamber.
2. An automatic calibration slot as defined in claim 1 wherein: the liquid level sensor adopts an infrared liquid level sensor.
3. An automatic calibration slot as defined in claim 2 wherein: the liquid level sensors are respectively provided with three groups from bottom to top, and the liquid level sensors comprise an infrared liquid level sensor A, an infrared liquid level sensor B and an infrared liquid level sensor C.
4. An automatic calibration slot as defined in claim 1 wherein: the constant volume waste discharge tank is characterized in that a mounting groove is formed in the side wall of the constant volume cavity, a mounting plate is arranged outside the mounting groove, and two symmetrical plugs are arranged on the mounting plate. The plug is respectively provided with a liquid level sensor, and when the mounting plate is inserted into the mounting groove, the liquid level sensors can be embedded into the side walls of the fixed cavity.
5. An automatic calibration slot as defined in claim 1 wherein: and a waste discharge port is formed in the bottom of the constant volume waste discharge groove.
6. An automatic calibration slot as defined in claim 5 wherein: the waste discharge port is communicated with the liquid adding cavity and the constant volume cavity.
7. An automatic calibration slot as defined in claim 5 wherein: and a liquid discharge pipe is arranged at the waste discharge port.
8. An automatic calibration slot as defined in claim 7 wherein: and a pinch valve is arranged on the liquid discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210544560.8A CN114858253A (en) | 2022-05-19 | 2022-05-19 | Automatic calibration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210544560.8A CN114858253A (en) | 2022-05-19 | 2022-05-19 | Automatic calibration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114858253A true CN114858253A (en) | 2022-08-05 |
Family
ID=82639116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210544560.8A Pending CN114858253A (en) | 2022-05-19 | 2022-05-19 | Automatic calibration tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114858253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225335A (en) * | 2023-11-14 | 2023-12-15 | 东营市俊源石油技术开发有限公司 | Loop reactor of external heat transfer circulation for synthesizing polysulfide compound |
-
2022
- 2022-05-19 CN CN202210544560.8A patent/CN114858253A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117225335A (en) * | 2023-11-14 | 2023-12-15 | 东营市俊源石油技术开发有限公司 | Loop reactor of external heat transfer circulation for synthesizing polysulfide compound |
| CN117225335B (en) * | 2023-11-14 | 2024-02-13 | 东营市俊源石油技术开发有限公司 | Loop reactor of external heat transfer circulation for synthesizing polysulfide compound |
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