CN115561118A - Self-cleaning vibrating tube densimeter calibrating device and calibrating and cleaning method thereof - Google Patents
Self-cleaning vibrating tube densimeter calibrating device and calibrating and cleaning method thereof Download PDFInfo
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- CN115561118A CN115561118A CN202211337555.6A CN202211337555A CN115561118A CN 115561118 A CN115561118 A CN 115561118A CN 202211337555 A CN202211337555 A CN 202211337555A CN 115561118 A CN115561118 A CN 115561118A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 228
- 239000002699 waste material Substances 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000007405 data analysis Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000003556 assay Methods 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000012795 verification Methods 0.000 abstract description 17
- 238000001514 detection method Methods 0.000 description 12
- 238000010926 purge Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
- G01N2009/006—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis vibrating tube, tuning fork
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Abstract
The invention belongs to the technical field of densimeter verification, and particularly relates to a self-cleanable vibrating tube densimeter verification device and a verification cleaning method thereof, wherein the verification device comprises a standard vibrating tube densimeter and a vibrating tube densimeter to be detected which are arranged in a constant temperature box, a constant temperature tank filled with density standard liquid, a cleaning tank, a high-pressure air source and a waste liquid tank; the device has the function of a cleaner, and can clean the internal pipeline of the device at the first time after the verification work of the densimeter is finished, so that the device can verify the next batch of samples as soon as possible; through setting up a plurality of constant temperature tanks, change different valve switching, can realize treating the examination of examining the densimeter with different standard sample liquid, improve examination efficiency, solve vibrating tube densimeter examination specification singleness, pipeline self-cleaning problem.
Description
Technical Field
The invention belongs to the technical field of densimeter verification, and particularly relates to a self-cleaning vibrating tube densimeter verification device and a verification and cleaning method thereof.
Background
Compared with the traditional glass densimeter, the on-line vibrating tube densimeter can realize the quick real-time output of the measurement result, simultaneously measure the liquid density value under different pressure and temperature conditions, has wide measurement range, is suitable for wide range of fluid medium, and more meets the requirements of industrial production and detection.
The existing vibrating tube densimeter detection device has the defects that the type or specification is single, a single detection device can only detect the densimeter with a single specification or type, the detection efficiency is low, the detection cost is high, after the detection is finished, a set of special cleaning process needs to be carried out on the cleaning of the detection device, the next detection can be carried out, and the efficiency is low.
In order to solve the problems of single calibration specification and self-cleaning of the pipeline of the vibrating tube densimeter, a self-cleaning vibrating tube densimeter calibrating device needs to be designed to realize self-cleaning of the pipeline in the calibrating process.
Disclosure of Invention
It is an aim of embodiments of the present invention to provide a self-cleanable vibrating tube densitometer assay device and an assay cleaning method thereof, which overcome the above problems or at least partially solve or mitigate the above problems.
In order to solve the technical problem, the invention provides a self-cleaning vibrating tube densimeter calibrating device, which comprises a standard vibrating tube densimeter and a vibrating tube densimeter to be tested, which are arranged in a constant temperature box, and further comprises a constant temperature tank filled with density standard liquid, a cleaning tank, a high-pressure gas source and a waste liquid barrel;
the standard vibrating tube densimeter and the vibrating tube densimeter to be measured are arranged in parallel and are connected with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter together; the constant temperature tank, the cleaning tank, the high-pressure gas source and the waste liquid barrel are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter through pipelines;
valves are arranged on pipelines communicated with the constant temperature tank, the cleaning tank, the high-pressure gas source and the waste liquid barrel and the liquid inlet pipeline and the liquid outlet pipeline of the vibrating tube densimeter; the vibrating tube densimeter liquid inlet pipeline and the vibrating tube densimeter liquid outlet pipeline are provided with a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are externally connected with a data analysis comparison computing system.
The vibrating tube densimeter is characterized by further comprising a constant pressure pump, wherein the constant pressure pump is respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter through pipelines, and valves capable of adjusting opening degrees are arranged on the pipelines.
The constant temperature bath is connected with a constant temperature bath liquid outlet pipeline and a constant temperature bath liquid return pipeline, an injection pump and a valve are arranged on the constant temperature bath liquid outlet pipeline, the constant temperature bath liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the constant temperature bath liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the constant temperature bath liquid return pipeline;
the cleaning tank is connected with a cleaning tank liquid outlet pipeline and a cleaning tank liquid return pipeline, an injection pump and a valve are arranged on the cleaning tank liquid outlet pipeline, the cleaning tank liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the cleaning tank liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the cleaning tank liquid return pipeline;
the high-pressure gas source only has an air outlet port, the air outlet port communicating pipeline is divided into two paths, the two paths of pipelines are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, and valves are also arranged on the pipelines;
the liquid outlet pipeline of the vibrating tube densimeter is also connected with a waste liquid barrel, and a valve is also arranged on a pipeline connected with the waste liquid barrel.
The vibrating tube densimeter that awaits measuring have one at least, all vibrating tube densimeters that await measuring divide and do not set up with standard vibrating tube densimeter is parallelly connected, the upper reaches end and the downstream end of every vibrating tube densimeter that awaits measuring all are provided with temperature sensor and valve.
The thermostatic bath is provided with at least three thermostatic baths, all the thermostatic baths are arranged in parallel, valves are arranged on the respective thermostatic bath liquid outlet pipeline and the thermostatic bath liquid return pipeline, and the thermostatic bath liquid outlet pipeline and the thermostatic bath liquid return pipeline are also communicated through one valve.
The thermostatic bath comprises an inner cylinder and an outer cylinder, the outer cylinder provides a constant temperature environment, the inner cylinder is used for placing standard sample liquid, and the inner cylinder is connected with a liquid outlet pipeline of the thermostatic bath and a liquid return pipeline of the thermostatic bath.
A calibrating method of a calibrating device of a self-cleaning vibrating tube densimeter comprises the following steps:
the method comprises the following steps: connecting a standard vibrating tube densimeter and a vibrating tube densimeter to be tested to pipelines at corresponding positions in a constant temperature box;
step two: setting a constant temperature box and a constant temperature tank to be at the temperature to be detected;
step three: opening valves of a constant temperature bath liquid outlet pipeline and a constant temperature bath liquid return pipeline, opening valves of a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline, and opening valves of an upstream end and a downstream end of a standard vibrating tube densimeter and a vibrating tube densimeter to be tested;
step four: opening an injection pump on a liquid outlet pipe of the constant temperature tank, enabling standard sample liquid in the constant temperature tank to flow through a standard vibrating tube densimeter and a vibrating tube densimeter to be detected through pipelines, adjusting the opening degree of valves at the downstream ends of the standard vibrating tube densimeter and the vibrating tube densimeter to be detected, operating and observing for a period of time until density reading is stable and does not change any more;
step five: and reading the numerical values of the temperature sensor, the pressure sensor and the vibrating pipe densimeter to be tested, wherein the pipeline flows through the standard vibrating pipe densimeter and the vibrating pipe densimeter to be tested, and transmitting the numerical values to a data analysis comparison and calculation system for comparison and analysis.
Step six: opening a valve on an external pipeline of the constant pressure pump, introducing the standard sample liquid in the constant temperature tank into the constant pressure pump, filling liquid into the constant pressure pump, and discharging gas in the constant pressure pump;
step seven: closing the injection pump, closing valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, keeping the constant pressure pump communicated with the standard vibrating tube densimeter and the vibrating tube densimeter to be tested, and statically pressurizing and maintaining the standard vibrating tube densimeter and the vibrating tube densimeter to be tested through the constant pressure pump;
step eight: and reading the values of the temperature sensor, the pressure sensor and the vibrating tube densimeter to be tested, wherein the pipeline flows through the standard vibrating tube densimeter and the vibrating tube densimeter to be tested, and transmitting the values to a data analysis comparison and calculation system for comparison and analysis.
A cleaning method of a self-cleaning vibrating tube densimeter calibrating device comprises the following steps:
the method comprises the following steps: opening a valve on a pipeline of a high-pressure gas source communicated with a liquid outlet pipeline of the vibrating tube densimeter, opening valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, and opening a valve on a liquid outlet pipeline of the constant temperature bath;
step two: starting a high-pressure gas source, adjusting the gas pressure to 1MPa, and blowing the liquid in the pipeline back to the constant-temperature tank by using gas;
step three: closing a high-pressure gas source and valves on pipelines connected with the high-pressure gas source, closing valves on a liquid outlet pipeline of the constant-temperature tank and a liquid return pipeline of the constant-temperature tank, opening valves on a liquid outlet pipeline of the cleaning tank and a liquid return pipeline of the cleaning tank, opening valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, opening a valve on a connecting pipeline of a constant-pressure pump, opening an injection pump on the liquid outlet pipeline of the cleaning tank, and cleaning the whole pipeline by using a cleaning agent;
step four: and closing valves on a liquid outlet pipeline and a liquid return pipeline of the cleaning tank, opening a high-pressure gas source and a valve on a pipeline connected with the high-pressure gas source, opening a valve on a pipeline communicated with the waste liquid barrel, blowing the pipeline by high-pressure gas, and blowing the residual liquid to the waste liquid barrel.
The invention has the following beneficial effects:
(1) The detection is convenient, a plurality of groups of densitometers to be detected can be detected simultaneously, and the working efficiency is improved;
(2) The device has the function of a cleaner, and can clean the internal pipeline of the device in the first time after the verification work of the densimeter is finished, so that the device can perform the verification of the next batch of samples as soon as possible;
(3) The device is provided with a plurality of constant temperature tanks, and can realize the detection of the densimeter to be detected by different standard sample liquids by changing the opening and closing of different valves, thereby improving the detection efficiency.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a flow chart of the overall apparatus of the present invention.
Description of reference numerals:
1. a thermostat; 2. a standard vibrating tube densitometer; 3. a vibrating tube densimeter to be tested; 4. a thermostatic bath; 5. a cleaning tank; 6. a high pressure gas source; 7. a waste liquid barrel; 8. an injection pump; 9. a constant pressure pump.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms used herein, including technical and scientific terms, have the ordinary meaning as understood by those skilled in the art. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the embodiment provides a calibrating device of a vibrating tube densimeter capable of self-cleaning, which is shown in figure 1 and comprises a standard vibrating tube densimeter 2 and a vibrating tube densimeter 3 to be detected which are arranged in a constant temperature box 1, a constant temperature tank 4 filled with density standard liquid, a cleaning tank 5, a high-pressure air source 6 and a waste liquid barrel 7;
the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be measured are arranged in parallel and are connected with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter together; the constant temperature tank 4, the cleaning tank 5, the high-pressure gas source 6 and the waste liquid barrel 7 are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter through pipelines; the main verification principle of the verification device is that the same standard density liquid respectively passes through the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be detected, corresponding data are measured and analyzed under the same condition, if the data measured by the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be detected are the same, the accuracy of the vibrating tube densimeter to be detected can be indicated, and if the data are different, the fact that the vibrating tube densimeter to be detected has an inaccurate place relative to the standard vibrating tube densimeter is indicated.
Valves are arranged on pipelines which are communicated with the constant temperature tank 4, the cleaning tank 5, the high-pressure air source 6 and the waste liquid barrel 7 and the liquid inlet pipeline and the liquid outlet pipeline of the vibrating tube densimeter; the vibrating tube densimeter liquid inlet pipeline and the vibrating tube densimeter liquid outlet pipeline are provided with a temperature sensor and a pressure sensor, the temperature sensor and the pressure sensor are externally connected with a data analysis comparison computing system, the externally connected data analysis comparison computing system is an existing data processing system, and no special description is given here.
The thermostatic bath 4 and the thermostatic oven 1 are used for providing corresponding environments, and influence of the environments on final measurement data is reduced. After the verification is completed, the cleaning tank 5 cleans the inside of the whole pipeline, the high-pressure air source 6 finishes purging the inside of the pipeline, the remaining residual liquid is placed, the next test is inaccurate, and the waste liquid barrel 7 finishes recovering waste liquid caused by cleaning and purging.
In order to further obtain accurate test data, the device further comprises a constant pressure pump 9, wherein the constant pressure pump 9 is respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter through pipelines, and valves capable of adjusting the opening degree are arranged on the pipelines. The existence of the constant pressure pump 9 can adjust the inside of the system in the testing process, so that a stable pressure value environment is formed inside the pipeline, and static pressurization and pressure maintaining can be carried out.
Specifically, the thermostatic bath 4 is connected with a thermostatic bath liquid outlet pipeline and a thermostatic bath liquid return pipeline, an injection pump 8 and a valve are arranged on the thermostatic bath liquid outlet pipeline, the thermostatic bath liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the thermostatic bath liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the thermostatic bath liquid return pipeline; the cleaning tank 5 is connected with a cleaning tank liquid outlet pipeline and a cleaning tank liquid return pipeline, an injection pump 8 and a valve are arranged on the cleaning tank liquid outlet pipeline, the cleaning tank liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the cleaning tank liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the cleaning tank liquid return pipeline; the high-pressure gas source 6 only has an air outlet port, the air outlet port communicating pipeline is divided into two paths, the two paths of pipelines are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, and valves are also arranged on the pipelines; the liquid outlet pipeline of the vibrating tube densimeter is also connected with a waste liquid barrel 7, and a valve is also arranged on the pipeline connected with the waste liquid barrel 7.
The valve is arranged in each functional block, and the opening and closing of different valves can lead the whole device to carry out different working processes, and the verification, the cleaning and the purging can be independently completed by opening and closing different valves.
Simultaneously, this device can also solve the defect that can only single examination in the vibrating tube densimeter verification process, and in this embodiment, vibrating tube densimeter 3 that awaits measuring has at least one, when quantity is one, just examines and determine vibrating tube densimeter 3 that awaits measuring, when quantity is a plurality of, just can examine and determine a plurality of vibrating tube densimeters 3 that await measuring simultaneously, in order to improve examination efficiency, figure 1 shows to examine and determine three vibrating tube densimeters 3 that await measuring simultaneously.
A vibrating tube densimeter that awaits measuring can be placed to each vibrating tube densimeter 3's that awaits measuring position, because all vibrating tube densimeters 3 that await measuring equally divide do not to connect in parallel with standard vibrating tube densimeter 2 and set up, every vibrating tube densimeter 3's that awaits measuring upstream end and downstream end all are provided with temperature sensor and valve, so the data that record all are independent data separately, can not influence each other, the data that record all can be compared with the data that 2 departments of standard vibrating tube densimeter measured respectively.
In order to increase the accuracy of the verification result, in the device, at least three constant temperature tanks 4 are provided, the densities of the standard sample liquids in the three constant temperature tanks 4 are different, all the constant temperature tanks 4 are arranged in parallel, valves are arranged on respective constant temperature tank liquid outlet pipelines and constant temperature tank liquid return pipelines, and the constant temperature tank liquid outlet pipelines and the constant temperature tank liquid return pipelines are also communicated through one valve. A single thermostatic bath 4 can provide a standard sample liquid detection, if there are a plurality of thermostatic baths 4, different standard sample liquids can be placed in different thermostatic baths 4, and finally, longitudinal data comparison and transverse data comparison cannot be realized. The thermostatic bath 4 comprises an inner cylinder and an outer cylinder, the outer cylinder provides a thermostatic environment, the inner cylinder is used for placing standard sample liquid, and the inner cylinder is connected with a thermostatic bath liquid outlet pipeline and a thermostatic bath liquid return pipeline.
The second embodiment:
the embodiment specifically provides a calibration method of a self-cleaning vibrating tube densimeter calibration device, which is shown in fig. 1, and in fig. 1, there are three groups of constant temperature tanks 4 and three groups of vibrating tube densimeters 3 to be tested, and specifically includes the following steps:
the method comprises the following steps: connecting a standard vibrating tube densimeter 2 and a vibrating tube densimeter 3 to be tested to pipelines at corresponding positions in a constant temperature box 1;
step two: setting the temperature of the constant temperature box 1 and the constant temperature groove 4 to be detected;
step three: opening valves (valves K1, K2, K3, K4, K5 and K6) of a constant temperature bath liquid outlet pipeline and a constant temperature bath liquid return pipeline, opening valves (K9 and K10) of a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline, and opening valves (K11-K18) of an upstream end and a downstream end of a standard vibrating tube densimeter 2 and a vibrating tube densimeter 3 to be tested;
step four: opening an injection pump 8 on a liquid outlet pipeline of the constant temperature tank, enabling the standard sample liquid in the constant temperature tank 4 to flow through the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be detected through pipelines, adjusting the opening degrees of valves at the downstream ends of the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be detected, and operating and observing for a period of time until density reading is stable and does not change any more;
step five: and reading the values of the temperature sensor (T1-T8), the pressure sensor (P1) and the vibrating tube densimeter 2 with the pipeline flowing through the standard vibrating tube densimeter and the vibrating tube densimeter 3 to be tested, and transmitting the values to a data analysis comparison computing system for comparison and analysis.
Step six: opening valves (V1-V5) on external pipelines of the constant pressure pump 9, enabling the standard sample liquid in the constant temperature tank 4 to also enter the constant pressure pump 9, filling liquid into the constant pressure pump 9, and discharging gas in the constant pressure pump 9;
step seven: closing the injection pump 8, closing valves (K9 and K10) on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, keeping the constant pressure pump 9 communicated with the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be tested, and statically pressurizing and maintaining the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be tested through the constant pressure pump 9;
step eight: and reading the values of the temperature sensors (T1-T8), the pressure sensor (P1) and the pipeline flowing through the standard vibrating tube densimeter 2 and the vibrating tube densimeter 3 to be tested, and transmitting the values to a data analysis and comparison computing system for comparison and analysis.
The third embodiment:
the embodiment provides a method for cleaning a calibrating device of a self-cleaning vibrating tube densimeter, which is shown in fig. 1, and in fig. 1, three groups of constant temperature tanks 4 and three groups of vibrating tube densimeters 3 to be measured specifically include the following steps:
the method comprises the following steps: opening a valve V7 on a pipeline of a high-pressure gas source 6 communicated with a liquid outlet pipeline of the vibrating tube densimeter, opening valves (K9 and K10) on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, opening valves (K2, K4 and K6) on a liquid outlet pipeline of the thermostatic bath, and opening valves (K21, K22 and K23) between the liquid inlet pipeline and the liquid outlet pipeline of the thermostatic bath;
step two: starting a high-pressure gas source 6, adjusting the gas pressure to 1MPa, and blowing the liquid in the pipeline back to the constant-temperature tank 4 by gas;
step three: closing a high-pressure gas source 6 and valves (V6 and V7) on pipelines connected with the high-pressure gas source, closing constant-temperature tank liquid outlet pipelines (K2, K4 and K6), valves (K1, K3 and K5) on constant-temperature tank liquid return pipelines and valves (K21, K22 and K23) between constant-temperature tank liquid inlet pipelines and liquid outlet pipelines, opening valves (K7 and K8) on a cleaning tank liquid outlet pipeline and a cleaning tank liquid return pipeline, opening valves (K9 and K10) on a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline, opening valves (V1-V5) on a connecting pipeline of a constant-pressure pump 9, opening an injection pump 8 on the cleaning tank liquid outlet pipeline, and cleaning the whole pipeline by using a cleaning agent;
step four: closing valves (K7, K8) on a liquid outlet pipeline and a liquid return pipeline of the cleaning tank, opening a high-pressure gas source 6 and a valve V7 on a pipeline connected with the high-pressure gas source, opening a valve K20 on a pipeline communicated with the waste liquid barrel 7, purging the pipeline by high-pressure gas, purging residual liquid to the waste liquid barrel 7, closing the valve V7 and the valve K10, opening the valve V6, opening a valve K19 on a pipeline communicated with the waste liquid barrel 7, performing reverse purging, and purging the residual liquid in the pipeline to the waste liquid barrel 7.
In conclusion, the self-cleaning vibrating tube densimeter calibrating device provided by the invention is convenient to calibrate, can calibrate a plurality of groups of densimeters to be calibrated simultaneously, and improves the working efficiency; the device has the function of a cleaner, and can clean the internal pipeline of the device at the first time after the verification work of the densimeter is finished, so that the device can verify the next batch of samples as soon as possible; through setting up a plurality of constant temperature tanks, change different valve switching, can realize treating the examination of examining the densimeter with different standard sample liquid, improve examination efficiency, solve vibrating tube densimeter examination specification singleness, pipeline self-cleaning problem.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (9)
1. The utility model provides a but vibrating tube densimeter calibrating installation of self-cleaning which characterized in that: the device comprises a standard vibrating tube densimeter (2) and a vibrating tube densimeter (3) to be tested which are arranged in a constant temperature box (1), and also comprises a constant temperature tank (4) filled with density standard liquid, a cleaning tank (5), a high-pressure air source (6) and a waste liquid barrel (7);
the standard vibrating tube densimeter (2) and the vibrating tube densimeter (3) to be tested are arranged in parallel and are connected with a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline together; the constant temperature tank (4), the cleaning tank (5), the high-pressure air source (6) and the waste liquid barrel (7) are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter through pipelines;
valves are arranged on pipelines communicated with the vibrating tube densimeter liquid inlet pipeline and the vibrating tube densimeter liquid outlet pipeline through the constant temperature tank (4), the cleaning tank (5), the high-pressure air source (6) and the waste liquid barrel (7); the vibrating tube densimeter liquid inlet pipeline and the vibrating tube densimeter liquid outlet pipeline are provided with a temperature sensor and a pressure sensor, and the temperature sensor and the pressure sensor are externally connected with a data analysis comparison computing system.
2. A self-cleanable vibrating tube densitometer calibration device as claimed in claim 1, wherein: the vibrating tube densimeter is characterized by further comprising a constant pressure pump (9), wherein the constant pressure pump (9) is respectively communicated with a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline through pipelines, and valves capable of adjusting the opening degree are arranged on the pipelines.
3. A self-cleanable vibrating tube densitometer calibration device as claimed in claim 1 or claim 2, wherein:
the constant temperature bath (4) is connected with a constant temperature bath liquid outlet pipeline and a constant temperature bath liquid return pipeline, an injection pump (8) and a valve are arranged on the constant temperature bath liquid outlet pipeline, the constant temperature bath liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the constant temperature bath liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the constant temperature bath liquid return pipeline;
the cleaning tank (5) is connected with a cleaning tank liquid outlet pipeline and a cleaning tank liquid return pipeline, an injection pump (8) and a valve are arranged on the cleaning tank liquid outlet pipeline, the cleaning tank liquid outlet pipeline is connected with a vibrating tube densimeter liquid inlet pipeline, the cleaning tank liquid return pipeline is connected with a vibrating tube densimeter liquid outlet pipeline, and a valve is arranged on the cleaning tank liquid return pipeline;
the high-pressure gas source (6) is only provided with a gas outlet port, the gas outlet port communication pipeline is divided into two pipelines, the two pipelines are respectively communicated with a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, and valves are also arranged on the pipelines;
the liquid outlet pipeline of the vibrating tube densimeter is also connected with a waste liquid barrel (7), and a valve is also arranged on a pipeline connected with the waste liquid barrel (7).
4. A self-cleanable vibrating tube densitometer calibration device as claimed in claim 3, wherein: the vibrating tube densimeter (3) that awaits measuring have one at least, all vibrating tube densimeters (3) that await measuring are equallyd divide and are do not connect in parallel with standard vibrating tube densimeter (2) and set up, the upper reaches end and the downstream end of every vibrating tube densimeter (3) that awaits measuring all are provided with temperature sensor and valve.
5. The self-cleanable vibrating tube densitometer calibration device of claim 4, wherein: the thermostatic bath is characterized in that at least three thermostatic baths (4) are provided, all the thermostatic baths (4) are arranged in parallel, valves are arranged on respective thermostatic bath liquid outlet pipelines and thermostatic bath liquid return pipelines, and the thermostatic bath liquid outlet pipelines and the thermostatic bath liquid return pipelines are communicated through one valve.
6. The self-cleanable vibrating tube densitometer calibration device of claim 5, wherein: the thermostatic bath (4) comprises an inner cylinder and an outer cylinder, the outer cylinder provides a constant temperature environment, the inner cylinder is used for placing standard sample liquid, and the inner cylinder is connected with a thermostatic bath liquid outlet pipeline and a thermostatic bath liquid return pipeline.
7. A method of calibrating a self-cleanable vibrating tube densitometer calibration device according to any one of claims 1-6, comprising:
the method comprises the following steps:
the method comprises the following steps: connecting a standard vibrating tube densimeter (2) and a vibrating tube densimeter (3) to be tested to pipelines at corresponding positions in a constant temperature box (1);
step two: setting the temperature to be detected of the constant temperature box (1) and the constant temperature tank (4);
step three: opening valves of a constant temperature bath liquid outlet pipeline and a constant temperature bath liquid return pipeline, opening valves of a vibrating tube densimeter liquid inlet pipeline and a vibrating tube densimeter liquid outlet pipeline, and opening valves of an upstream end and a downstream end of a standard vibrating tube densimeter (2) and a vibrating tube densimeter (3) to be tested;
step four: opening an injection pump (8) on a liquid outlet pipeline of the constant temperature tank, enabling standard sample liquid in the constant temperature tank (4) to flow through a standard vibrating tube densimeter (2) and a vibrating tube densimeter (3) to be detected through pipelines, adjusting the opening degrees of downstream end valves of the standard vibrating tube densimeter (2) and the vibrating tube densimeter (3) to be detected, operating and observing for a period of time until density reading is stable and does not change;
step five: and reading the values of the temperature sensor, the pressure sensor and the vibrating tube densimeter (2) to be tested, which are flowed through by the pipeline, and transmitting the values to a data analysis comparison computing system for comparison and analysis.
8. The method of calibrating a self-cleanable vibrating tube densitometer calibration device of claim 7, wherein:
also comprises the following steps:
step six: opening a valve on an external pipeline of the constant-pressure pump (9), introducing the standard sample liquid in the constant-temperature tank (4) into the constant-pressure pump (9), filling liquid into the constant-pressure pump (9), and discharging gas in the constant-pressure pump (9);
step seven: closing the injection pump (8), closing valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, keeping the constant pressure pump (9) communicated with the standard vibrating tube densimeter (2) and the vibrating tube densimeter (3) to be tested, and statically pressurizing and maintaining the standard vibrating tube densimeter (2) and the vibrating tube densimeter (3) to be tested through the constant pressure pump (9);
step eight: and reading the numerical values of the temperature sensor, the pressure sensor and the vibrating pipe densimeter (2) to be tested, which are flowed through the pipeline by the standard vibrating pipe densimeter and the vibrating pipe densimeter (3), and transmitting the numerical values to a data analysis comparison computing system for comparison and analysis.
9. A method of cleaning a self-cleanable vibrating tube densitometer assay device, as claimed in any one of claims 1-6, wherein:
the method comprises the following steps:
the method comprises the following steps: opening a valve on a pipeline of a high-pressure gas source (6) communicated with a liquid outlet pipeline of the vibrating tube densimeter, opening valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, and opening a valve on a liquid outlet pipeline of the constant temperature bath;
step two: starting a high-pressure gas source (6), adjusting the gas pressure to 1MPa, and blowing the liquid in the pipeline back to the constant-temperature tank (4) by gas;
step three: closing a high-pressure air source (6) and valves on pipelines connected with the high-pressure air source, closing valves on a liquid outlet pipeline of the thermostatic bath and a liquid return pipeline of the thermostatic bath, opening valves on a liquid outlet pipeline of the cleaning tank and a liquid return pipeline of the cleaning tank, opening valves on a liquid inlet pipeline of the vibrating tube densimeter and a liquid outlet pipeline of the vibrating tube densimeter, opening a valve on a pipeline connected with a constant pressure pump (9), opening an injection pump (8) on the liquid outlet pipeline of the cleaning tank, and cleaning the whole pipeline by using a cleaning agent;
step four: and closing valves on a liquid outlet pipeline and a liquid return pipeline of the cleaning tank, opening a high-pressure gas source (6) and a valve on a pipeline connected with the high-pressure gas source, opening a valve on a pipeline communicated with a waste liquid barrel (7), blowing the pipeline by high-pressure gas, and blowing the residual liquid to the waste liquid barrel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211337555.6A CN115561118A (en) | 2022-10-28 | 2022-10-28 | Self-cleaning vibrating tube densimeter calibrating device and calibrating and cleaning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211337555.6A CN115561118A (en) | 2022-10-28 | 2022-10-28 | Self-cleaning vibrating tube densimeter calibrating device and calibrating and cleaning method thereof |
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| CN115561118A true CN115561118A (en) | 2023-01-03 |
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| CN202211337555.6A Pending CN115561118A (en) | 2022-10-28 | 2022-10-28 | Self-cleaning vibrating tube densimeter calibrating device and calibrating and cleaning method thereof |
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| Country | Link |
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| CN (1) | CN115561118A (en) |
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