CN111982741A - Online vibrating tube liquid densimeter verification and calibration device - Google Patents
Online vibrating tube liquid densimeter verification and calibration device Download PDFInfo
- Publication number
- CN111982741A CN111982741A CN202011017038.1A CN202011017038A CN111982741A CN 111982741 A CN111982741 A CN 111982741A CN 202011017038 A CN202011017038 A CN 202011017038A CN 111982741 A CN111982741 A CN 111982741A
- Authority
- CN
- China
- Prior art keywords
- liquid
- pipeline
- detection
- verification
- densitometer
- 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
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to the technical field of densimeter inspection, in particular to a calibrating device for an online vibrating tube liquid densimeter, which comprises a constant temperature box, a liquid level meter and a liquid level meter, wherein the constant temperature box is provided with a liquid level meter; the control system is connected with the thermostat; the liquid supply system includes: the device comprises a thermostatic bath, a liquid feeding pump and a detection connecting assembly; the constant temperature tank is used for storing standard liquid; the liquid feeding pump is used for conveying the standard liquid to the detection connecting assembly; a liquid outlet of the detection connecting assembly is communicated with the thermostatic bath through a third pipeline; the liquid supply system is multiple; the plurality of liquid supply systems are arranged in parallel; the first detection system includes: a standard table; the standard meter is connected to the detection connecting assembly of one part of the liquid supply system; the second detection system includes: a desk-top densitometer; the desk type densimeter is selectively connected to a second pipeline of the other part of the liquid supply system; the air pressurization generator is communicated with the second pipeline through a fourth pipeline; and a vent valve is arranged on the third pipeline. The invention can improve the verification efficiency and reduce the verification cost.
Description
Technical Field
The invention relates to the technical field of densimeter inspection, in particular to a calibrating device for an online vibrating tube liquid densimeter.
Background
The density value is used as a key parameter in the field of metering and handing-over of crude oil and finished oil, and the density of an oil product needs to be accurately measured in real time in modern crude oil and finished oil handing-over so as to realize accurate conversion between volume and mass. For density measurement, static liquid density is often measured only with a densitometer as a standard. In industrial production, particularly in bulk international oil delivery, the density of flowing liquids is measured at any time, and a vibrating tube densitometer of the liquid well solves this problem. The liquid vibrating tube densimeter is used for on-line continuous measurement of liquid density, is suitable for density measurement in trade handover of liquid media (particularly petrochemical materials), and can be used for on-line continuous measurement of volume flow rate by combining with mass value.
However, the vibrating tube densitometer as a measuring instrument needs to be periodically or aperiodically checked to ensure the accuracy of the measurement. The existing calibrating device is single in type or specification of the densimeter, so that a single calibrating device only can be used for the densimeter with single specification or type, the calibrating efficiency is low, and the calibrating cost is high.
Disclosure of Invention
In view of the above, the invention provides a calibration device for calibrating a liquid densimeter with an online vibrating tube, and mainly aims to improve calibration efficiency and reduce calibration cost.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a verification and calibration device for an online vibrating tube liquid densimeter, which comprises a thermostat, a control system, a liquid supply system, a first detection system, a second detection system and an air pressurization generator, wherein the thermostat is connected with the control system;
the constant temperature box is a box body which can be closed;
the control system is connected with the constant temperature box and is used for controlling the temperature in the constant temperature box;
the liquid supply system includes: the device comprises a thermostatic bath, a liquid feeding pump and a detection connecting assembly;
the constant temperature tank is used for storing standard liquid; the temperature of the thermostatic bath can be adjusted;
a liquid inlet of the liquid feeding pump is communicated with the thermostatic bath through a first pipeline;
the detection connecting assembly is arranged in the constant temperature box and is used for connecting a densimeter to be detected;
a liquid inlet of the detection connecting assembly is communicated with a liquid outlet of the liquid feeding pump through a second pipeline; a liquid outlet of the detection connecting assembly is communicated with the constant temperature tank through a third pipeline;
the liquid supply system is multiple; the liquid supply systems are arranged in parallel;
the first detection system includes: a standard table;
the standard meter is connected to the detection connecting assembly of one part of the liquid supply system;
the second detection system includes: a desk-top densitometer;
the desk-top densitometer is selectively connected to the second pipeline of another part of the liquid supply system;
the air pressurization generator is communicated with the second pipeline through a fourth pipeline;
and an emptying valve is arranged on the third pipeline.
Further, liquid outlets of the detection connecting assembly in the other part of the liquid supply system are communicated with each other through a communicating pipe; and a fluid flow direction control valve is arranged on the communicating pipe.
Further, the air pressurization generator can heat the output fluid.
Furthermore, a detection interface is arranged on the second pipeline; and a detection control valve is arranged on the detection interface.
Further, the table densitometer is selectively connected to the detection interface of one of the plurality of second conduits via a detection conduit.
Alternatively, the desk-top densitometer is connected with the detection interface through a fifth pipeline;
the number of the fifth pipelines is multiple; the fifth pipelines are arranged in one-to-one correspondence with the detection interfaces.
Further, the control system includes: the device comprises an inner machine, an outer machine, a first temperature sensor and a control device;
the internal machine is arranged in the constant temperature box;
the external machine is connected with the internal machine; a preset distance is reserved between the outdoor unit and the incubator;
the first temperature sensor is arranged in the incubator and used for detecting the temperature in the incubator;
the control device is respectively connected with the internal machine, the external machine and the first temperature sensor to receive a temperature signal of the first temperature sensor and control the internal machine and the external machine.
Further, the temperatures of a plurality of the constant temperature tanks are independently controlled;
the plurality of constant temperature tanks can contain different standard liquids.
Further, the thermostatic bath is arranged in the closed chamber.
Further, a second temperature sensor is arranged on the second pipeline;
a pressure sensor is arranged on the second pipeline;
a flow control valve is arranged on the second pipeline;
and a bubble filter is arranged on the second pipeline.
By the technical scheme, the verification and calibration device for the online vibrating tube liquid densimeter at least has the following advantages:
the verification efficiency can be improved, and the verification cost is reduced.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of an online vibrating tube liquid densitometer verification calibration apparatus provided by an embodiment of the invention;
fig. 2 is a schematic diagram of an online vibrating tube liquid densitometer verification and calibration device according to another embodiment of the invention.
Shown in the figure:
the device comprises a thermostat 1, a liquid supply system 2, a thermostatic bath 2-1, a first pipeline 2-2, a liquid feeding pump 2-3, a second pipeline 2-4, a detection connecting assembly 2-5, a third pipeline 2-6, a flow control valve 2-7, a pressure sensor 2-8, a temperature sensor 2-9, an emptying valve 2-10, a bubble filter 2-11, a communicating pipe 2-12, a fluid flow direction control valve 2-13, a first detection system 3, a second detection system 4, a fifth pipeline 4-1, an air pressurization generator 5, a fourth pipeline 5-1, a control system 6, an internal machine 6-1, an external machine 6-2, a first temperature sensor 6-3 and a microscopic detection device 7.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in FIG. 1, the verification and calibration device for the online vibrating tube liquid densitometer, which is provided by one embodiment of the invention, comprises an incubator 1, a control system 6, a liquid supply system 2, a first detection system 3, a second detection system 4 and an air pressurization generator 5;
the constant temperature box 1 is a box body which can be closed; this embodiment preferably has an opening on one side on oven 1; a door structure is arranged on the opening; a door structure rotatably provided on the incubator 1 to close or open the opening; of course, the door structure may also be slidably arranged on oven 1, driven to slide, to open or close the opening.
The control system 6 is connected with the thermostat 1 and is used for controlling the temperature in the thermostat 1; preferably, in this embodiment, the control system 6 includes: the device comprises an inner machine 6-1, an outer machine 6-2, a first temperature sensor 6-3 and a control device; the internal machine 6-1 is arranged in the constant temperature box 1; the outdoor unit 6-2 is connected with the indoor unit 6-1; the preset distance is reserved between the outdoor unit 6-2 and the constant temperature box 1, and adverse effects on frequency acquisition of the detected densimeter when the frequency start-stop device and the compressor work are effectively eliminated. The first temperature sensor 6-3 is arranged in the incubator 1 and used for detecting the temperature in the incubator 1; the control device is respectively connected with the inner machine 6-1, the outer machine 6-2 and the temperature sensor I6-3 to receive a temperature signal of the temperature sensor I6-3 and control the inner machine 6-1 and the outer machine 6-2.
The liquid supply system 2 comprises: the device comprises a thermostatic bath 2-1, a liquid feeding pump 2-3 and a detection connecting assembly 2-5; the thermostatic bath 2-1 is used for storing standard solution; the temperature of the thermostatic bath 2-1 can be adjusted so that the temperature of the standard liquid is maintained at a predetermined temperature.
A liquid inlet of the liquid feeding pump 2-3 is communicated with the thermostatic bath 2-1 through a first pipeline 2-2; the detection connecting assembly 2-5 is arranged in the constant temperature box 1 and is used for connecting a densimeter to be detected; the detection connecting assembly 2-5 is preferably a liquid distributor for connecting a plurality of densitometers to be detected; it is further preferred that the detection connection assemblies 2-5 are simultaneously capable of connecting 2-6 densitometers. A liquid inlet of the detection connecting assembly 2-5 is communicated with a liquid outlet of the liquid feeding pump 2-3 through a second pipeline 2-4; a liquid outlet of the detection connecting assembly 2-5 is communicated with the thermostatic bath 2-1 through a third pipeline 2-6; and the standard liquid is conveyed to the densimeter to be detected through a second pipeline 2-4 by a liquid conveying pump 2-3 and then flows back to the thermostatic bath 2-1 through a third pipeline 2-6, so that the circulation of the standard liquid is realized.
The liquid supply system 2 is multiple; the plurality of liquid supply systems 2 are arranged in parallel. In the embodiment, the number of the liquid supply systems 2 is preferably 4; the temperature of standard liquid is controlled by adopting 4 thermostatic baths 2-1 with the minimum division value of 0.01 ℃ and the temperature control fluctuation of the liquid of no more than +/-0.1 ℃ at 20 ℃, and the temperature of the standard liquid is controlled by the thermostatic bath 2-1 with the overtemperature alarm function, and after the liquid with the standard density is added into the thermostatic bath 2-1, the thermostatic bath 2-1 is quickly heated to the temperature required by the experiment for standby.
The first detection system 3 includes: a standard table; the standard meter is connected to a detection connecting assembly 2-5 of one part of the liquid supply system 2; the standard tables can be two; the two standard tables are arranged in parallel; the standard meter is arranged on the detection connecting component 2-5 in parallel with the densimeter to be detected.
The second detection system 4 comprises: a desk-top densitometer; the desk-top densimeter is selectively connected to a second pipeline 2-4 of the other part of the liquid supply system 2; in the preferred embodiment, the second pipeline 2-4 is provided with a detection interface to communicate with a desk-top densimeter; of course, the test connection can also be provided on a test connection assembly 2-5 communicating with the second line 2-4. And a detection control valve is arranged on the detection interface to control the connection and disconnection of the detection interface.
Preferably, the desk-top densitometer is selectively connected to the detection interface of one of the second plurality of conduits 2-4 via the detection conduit. Of course, it may alternatively be connected to the test interface on the test connection assembly 2-5. The table densitometer may be in selective communication with the detection interface via a fluid conduit. Preferably, the fluid conduit has a quick connector thereon to enable quick connection.
Alternatively, referring to fig. 2, the table densitometer is connected to the detection interface through a fifth conduit 4-1; the number of the fifth pipelines 4-1 is multiple; the fifth pipelines 4-1 are arranged in one-to-one correspondence with the detection interfaces, and when the liquid supply system 2 needs to be detected, only the detection control valves of the detection interfaces need to be opened correspondingly, so that the operation is convenient and rapid.
Before the verification, firstly, classifying the precision grades of the detected densitometers, and distributing the detected densitometers with the precision grades of 0.5 grade and below to a first detection system 3 for verification after the cleaning is finished; and the measured accuracy grade is better than that of a 0.5-grade detected densitometer, and the measured accuracy grade is distributed to the second detection system 4 for verification after the cleaning is finished.
The first detection system 3 adopts two 0.1-level high-level standard meters as main standard devices to be installed in parallel, standard liquid enters the standard meters after entering the detection connecting assembly 2-5 and the flow is stable, and then enters the detected densitometers respectively until the density difference of the import and export standards is not higher than 0.1kg/m3And then, automatically acquiring the vibration frequency and the temperature of the detected densimeter. The method comprises the steps of respectively installing a thermometer with the precision of 0.001 ℃ and a 0.01-grade pressure gauge with the test of 0-5 Mpa at the inlet end and the outlet end of a densimeter, monitoring the pressure and temperature fluctuation value in the whole verification process, automatically acquiring the verification process without manual intervention, automatically calculating and automatically generating original records.
For densitometers with an accuracy rating better than 0.5, the assignment to an accuracy rating better than 0.05kg/m3The second detection system 4 with the desk-top densimeter as a main standard device is provided with three sets of liquid supply systems 2 for distributing constant-temperature standard liquid, different liquids can be distributed respectively, different kinds of liquids can be detected simultaneously, the detection standard liquid can be replaced at any time in the detection process according to the requirements of customers, and the detection efficiency is greatly improved. The tank bodies of all the thermostatic tanks 2-1 are replaceable, so that the cross contamination of standard liquid is effectively avoided. By adopting the desk type densitometer, the method of taking the first-class densitometer as a main standard device in the prior art can be eliminated, and the error caused by manual reading can be reduced to the maximum extent.
The air pressurization generator 5 is communicated with the second pipeline 2-4 through a fourth pipeline 5-1; the third pipeline 2-6 is provided with an air release valve 2-10. The air pressurization generator 5 can not only realize the pressurization of the standard liquid, but also realize the purging of the densimeter. Because the densimeter in use has impurities such as greasy dirt, sweeps after integrated cleaning earlier before detecting, has effectually guaranteed the inside cleanliness factor of densimeter in the examination, has guaranteed the accuracy of data acquisition.
One embodiment of the present invention provides an online vibrating tube densitometer calibration device that allows both pressurized purging and sensing, with the pressure source generated by the air pressurization generator 5 saving manufacturing costs. The integrated arrangement reduces the operation and manufacture cost.
The calibrating device for the on-line vibrating tube liquid densimeter provided by one embodiment of the invention can improve the calibrating efficiency and reduce the calibrating cost.
As a preference of the above embodiment, the incubator 1, the control system 6, the liquid supply system 2, the first detection system 3, the second detection system 4, and the air pressurization generator 5 are disposed in the same thermostatic space; for example, in the same room or plant; the space is constant in temperature. Because the verification process of the densimeter has higher requirement on temperature change, the whole system of the verification and calibration device for the online vibrating tube liquid densimeter provided by the embodiment of the invention is in a constant temperature control environment, and the detected densimeter and the standard meter are also designed in a constant temperature control field, so that the constant temperature waiting time in the verification process is effectively reduced.
The calibrating device for the on-line vibrating tube liquid densimeter provided by one embodiment of the invention can simultaneously circulate various types of standard liquids with various temperatures and pressures in the calibrating device, thereby greatly improving the calibrating efficiency.
According to the verification and calibration device for the on-line vibrating tube liquid densimeter, which is provided by the embodiment of the invention, the detected densimeter in use can be fully and effectively cleaned by adopting the integrated cleaning system, and the verification accuracy is effectively ensured. Before the verification, the detected densimeters are classified, the densimeters with different precision grades adopt different liquid supply systems 2, the verification efficiency is effectively improved, and meanwhile, when the high precision is verified, only a high-standard desk-type densimeter is adopted as a main standard device, so that the verification efficiency is improved, and the automation of verification data acquisition is really realized.
As a preference of the above embodiment, the liquid outlets of the detection connection assemblies 2-5 in another part of the liquid supply system 2 are communicated with each other through the communication pipes 2-12; a fluid flow direction control valve 2-13 is arranged on the communicating pipe 2-12 to control the on-off of the communicating pipe 2-12; the same standard liquid can be adopted by a plurality of liquid supply systems 2 through the flow direction control valve, the detection scale of densimeters of the same type can be enlarged, and the detection efficiency is improved.
As a preference of the above embodiment, the air pressurization generator 5 can heat the output fluid. For guaranteeing that the densimeter has a good cleaning effect, the air pressurization generator 5 can not only realize cleaning and purging the densimeter, but also can realize drying the densimeter after heating the air flow, thereby effectively guaranteeing the cleaning effect, improving the cleaning efficiency, heating the purging temperature to a proper temperature as required, and improving the purging efficiency. But also provides good conditions for subsequent assays. Can carry out scope detection through scope detection device 7 before rinsing, effectively guarantee the accuracy of cleaning performance and testing result.
As a preference of the above embodiment, the temperatures of the plurality of constant temperature chambers 2-1 are independently controlled; the constant temperature tanks 2-1 can be used for containing different standard liquids, so that different temperature control can be performed on different standard liquids according to detection requirements, and meanwhile, the detection of various densimeters can be realized.
As a preference of the above embodiment, the thermostatic bath 2-1 is arranged in the closed chamber to further guarantee the temperature of the standard liquid in the thermostatic bath 2-1 and reduce the influence of the environment on the temperature of the standard liquid. In this embodiment, it is preferable that the constant temperature bath 2-1 has a stirring device for stirring the standard solution in the constant temperature bath 2-1. And controlling the temperature in the closed cavity by means of two high-level temperature sensors I6-3 in the closed cavity, wherein the temperature in the closed cavity is higher than or lower than 3 ℃, and when the temperature difference between the two temperature sensors I6-3 exceeds 1 ℃, the temperature automatically starts to be heated or cooled.
Preferably, the second pipeline 2-4 is provided with a second temperature sensor 2-9 for acquiring temperature information of the second pipeline 2-4;
the second pipeline 2-4 is provided with a pressure sensor 2-8 for acquiring pressure information of the second pipeline 2-4;
the second pipeline 2-4 is provided with a flow control valve 2-7; the constant temperature standard density liquid is sent into the densimeter from the constant temperature tank 2-1 through a liquid pump. In the flowing process, the preset flow is set through the flow control valves 2-7, the flow is controlled by the 0.2-stage mass flow meter, and the stability of the flow in the running process is ensured.
The second pipeline 2-4 is provided with a bubble filter 2-11 to filter bubbles in the second pipeline 2-4;
the temperature sensors 2-9, the pressure sensors 2-8 and the flow control valves 2-7 are respectively connected with the control system 6; the control system 6 is able to collect temperature, pressure and flow information on the second line 2-4. The control system 6 is provided with a display unit to display the detection data thereof. The display unit is a display screen. The control system 6 is also connected with the standard meter and used for collecting data. The control system 6 is connected to the liquid supply system 2, the first detection system 3, the second detection system 4 and the air pressurization generator 5 for data acquisition and control. In order to ensure that the density values under various pressures are tested, the control system 6 controls the air pressurization generator 5 to automatically pressurize, and controls the liquid sending pumps 2-3 to automatically increase and reduce the pressure according to the set pressure. The acquisition of the frequency, temperature, pressure and other parameters of the whole system is automatically acquired, so that the error caused by manual reading is reduced, the verification efficiency is improved, and the accuracy of the detection data is ensured.
The traditional constant temperature field is designed in a single field way, and only one standard liquid circulation, one temperature and one pressure in a verification system can be ensured each time when the single field way is designed for verification. The invention provides a calibrating device for an online vibrating tube liquid densimeter, which provides a multi-field design on the design of calibrating a constant temperature control field. During verification, 2-3 standard solutions can be circulated in the verification system for verification according to the requirements of customers; and the detection under different pressures and different temperatures can be carried out simultaneously, and the efficiency is improved by about 2 times.
Further still, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, with such terms being used only to distinguish one element from another. Without departing from the scope of the exemplary embodiments. Similarly, the terms first, second, etc. do not denote any order or order, but rather the terms first, second, etc. are used to distinguish one element from another. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. The on-line vibrating tube liquid densimeter calibrating and calibrating device is characterized by comprising a constant temperature box, a control system, a liquid supply system, a first detection system, a second detection system and an air pressurization generator;
the constant temperature box is a box body which can be closed;
the control system is connected with the constant temperature box and is used for controlling the temperature in the constant temperature box;
the liquid supply system includes: the device comprises a thermostatic bath, a liquid feeding pump and a detection connecting assembly;
the constant temperature tank is used for storing standard liquid; the temperature of the thermostatic bath can be adjusted;
a liquid inlet of the liquid feeding pump is communicated with the thermostatic bath through a first pipeline;
the detection connecting assembly is arranged in the constant temperature box and is used for connecting a densimeter to be detected;
a liquid inlet of the detection connecting assembly is communicated with a liquid outlet of the liquid feeding pump through a second pipeline; a liquid outlet of the detection connecting assembly is communicated with the constant temperature tank through a third pipeline;
the liquid supply system is multiple; the liquid supply systems are arranged in parallel;
the first detection system includes: a standard table;
the standard meter is connected to the detection connecting assembly of one part of the liquid supply system;
the second detection system includes: a desk-top densitometer;
the desk-top densitometer is selectively connected to the second pipeline of another part of the liquid supply system;
the air pressurization generator is communicated with the second pipeline through a fourth pipeline;
and an emptying valve is arranged on the third pipeline.
2. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
liquid outlets of the detection connecting assembly in the other part of the liquid supply system are communicated with each other through a communicating pipe; and a fluid flow direction control valve is arranged on the communicating pipe.
3. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
the air pressurization generator is capable of heating the output fluid.
4. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
a detection interface is arranged on the second pipeline; and a detection control valve is arranged on the detection interface.
5. The in-line vibrating tube liquid densitometer verification and calibration device of claim 4,
the desk-top densitometer is selectively connected with the detection interface of one of the plurality of second pipelines through a detection pipeline.
6. The in-line vibrating tube liquid densitometer verification and calibration device of claim 4,
the desk-top densimeter is connected with the detection interface through a fifth pipeline;
the number of the fifth pipelines is multiple; the fifth pipelines are arranged in one-to-one correspondence with the detection interfaces.
7. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
the control system includes: the device comprises an inner machine, an outer machine, a first temperature sensor and a control device;
the internal machine is arranged in the constant temperature box;
the external machine is connected with the internal machine; a preset distance is reserved between the outdoor unit and the incubator;
the first temperature sensor is arranged in the incubator and used for detecting the temperature in the incubator;
the control device is respectively connected with the internal machine, the external machine and the first temperature sensor to receive a temperature signal of the first temperature sensor and control the internal machine and the external machine.
8. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
the temperature of a plurality of constant temperature tanks is independently controlled;
the plurality of constant temperature tanks can contain different standard liquids.
9. The in-line vibrating tube liquid densitometer verification and calibration device of claim 8,
the thermostatic bath is arranged in the closed chamber.
10. The in-line vibrating tube liquid densitometer verification and calibration device of claim 1,
a second temperature sensor is arranged on the second pipeline;
a pressure sensor is arranged on the second pipeline;
a flow control valve is arranged on the second pipeline;
and a bubble filter is arranged on the second pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011017038.1A CN111982741A (en) | 2020-09-24 | 2020-09-24 | Online vibrating tube liquid densimeter verification and calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011017038.1A CN111982741A (en) | 2020-09-24 | 2020-09-24 | Online vibrating tube liquid densimeter verification and calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111982741A true CN111982741A (en) | 2020-11-24 |
Family
ID=73450547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011017038.1A Pending CN111982741A (en) | 2020-09-24 | 2020-09-24 | Online vibrating tube liquid densimeter verification and calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111982741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414432A (en) * | 2022-01-24 | 2022-04-29 | 深圳国检计量测试技术有限公司 | Efficient calibration device and method for vibrating densimeter |
| CN115184210A (en) * | 2022-09-08 | 2022-10-14 | 中国计量科学研究院 | Automatic pressurization calibration device and method for online vibrating tube liquid densimeter |
-
2020
- 2020-09-24 CN CN202011017038.1A patent/CN111982741A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414432A (en) * | 2022-01-24 | 2022-04-29 | 深圳国检计量测试技术有限公司 | Efficient calibration device and method for vibrating densimeter |
| CN115184210A (en) * | 2022-09-08 | 2022-10-14 | 中国计量科学研究院 | Automatic pressurization calibration device and method for online vibrating tube liquid densimeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105181530B (en) | A kind of engine motor oil viscosity on-line measuring device and its detection method | |
| CN111982741A (en) | Online vibrating tube liquid densimeter verification and calibration device | |
| CN203037230U (en) | Insulation pipe wax deposition experiment apparatus | |
| CN105929124A (en) | On-line water quality analysis instrument and water quality analysis method thereof | |
| EP1511975B1 (en) | Process connection adapter for a meter calibration system | |
| CN209387297U (en) | Automobile-used ion-exchanger comprehensive performance test system | |
| CN212301201U (en) | Online vibrating tube liquid densimeter verification and calibration device | |
| CN205958562U (en) | Online water quality analyzer ware | |
| CN208567948U (en) | A kind of comprehensive test system of thermal medium circulation | |
| CN108801848B (en) | Intelligent constant-temperature verification liquid densimeter test device | |
| CN109883540A (en) | Test the device of water pump noise | |
| CN107221362B (en) | Pit filter performance evaluation experimental system | |
| CN208420604U (en) | Dynamic density meter calibrating installation | |
| CN212513235U (en) | Constant-elevation first-class metal measuring device standard device and liquid level control mechanism thereof | |
| CN221303080U (en) | Online densimeter verification standard device | |
| CN104089654B (en) | A kind of fluid behaviour on-line data acquisition method and system | |
| CN111122249A (en) | High-precision full-automatic sampling device and method for measuring oil content of refrigerant | |
| CN202110008U (en) | Special calibration device for electromagnetic heat meters | |
| CN220365704U (en) | Electronic oil pump offline testing device | |
| CN220829336U (en) | Closed flow resistance test platform | |
| CN113203588B (en) | Multi-stage gravity type self-flowing liquid working medium heat management performance testing system and method | |
| CN208221059U (en) | A kind of pressure testing device of high temperature and pressure hot oil pump | |
| CN109211726A (en) | A kind of online resonant mode densitometer calibrating installation | |
| CN112683565B (en) | Fuel test piece high-temperature working state test system | |
| CN219416376U (en) | High-temperature calibration device of liquid level sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |