CN207215646U - The on-line automatic measurement apparatus of brix - Google Patents
The on-line automatic measurement apparatus of brix Download PDFInfo
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- CN207215646U CN207215646U CN201721172208.7U CN201721172208U CN207215646U CN 207215646 U CN207215646 U CN 207215646U CN 201721172208 U CN201721172208 U CN 201721172208U CN 207215646 U CN207215646 U CN 207215646U
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- 238000005259 measurement Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 93
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 238000007667 floating Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 14
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 16
- 238000005070 sampling Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a kind of on-line automatic measurement apparatus of brix, including controller and tested material container, it is characterised in that also includes：Integrate the measurement apparatus of collection, detection, recovery and cleaning.Collection, detection, material recycle and each valve switch of cleaning process of the material samples of the device are controlled by controller.Buoyancy sensor signal, temperature sensor signal, liquid level signal are delivered continuously to control display, and controller is handled coherent signal, and require that carrying out output order controls related valve according to program.Relevant parameter, measurement result numerical value are inputted and shown on the touchscreen.Whole measurement process is controlled by controller to be completed, and can quickly measure the brix of liquid glucose and massecuite automatically.Reliable, measurement is accurate, improves efficiency, reduces cost.Suitable for the on-line automatic measurement of brix and strength of fluid.
Description
Technical Field
The utility model relates to a liquid concentration measuring device for industrial production, in particular to an on-line automatic measuring device for the brix of sugar liquor and the brix of massecuite in the sugar industry.
Background
In the industrial production of sugar, the brix represents the concentration of sugar liquid or massecuite, the brix is an important technological index in the production process of a sugar factory, and the brix of materials must be identified in each production link and operation process in the production process of sugar. In the current sugar manufacturing industry, no good sugar manufacturing online measuring equipment exists, most sugar manufacturing plants still stay in the working section, and the working personnel operate according to experience, so that the labor intensity of workers is increased, the time is long, and the sugar manufacturing quality is difficult to ensure. Due to poor stability of controlling the brix, the production of each section often cannot meet the technological requirement index. Therefore, most sugar mills urgently need on-line automatic measuring equipment for the brix degree, and further realize automation of the production process. In the on-line measuring equipment used in domestic production at present, in addition to the hammered measuring instrument product of our company, the microwave hammered instrument made in Germany is also available. The existing brix measuring instrument of our company is only suitable for partial workshop sections of a sugar refinery due to product limitation, and the adaptability of all links of sugar production is not achieved. Although the microwave brix instrument produced in Germany meets the requirements of sugar mills, the equipment is expensive, so that the microwave brix instrument is difficult to popularize for most sugar mills to produce and use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an online automatic measuring device of brix, it can automatic rapid survey the brix of sugar solution and massecuite.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides an online automatic measuring device of brix, includes controller and measured material container, its characterized in that still includes:
the measuring device integrates the functions of collection, detection, recovery and cleaning, and comprises a measuring container, a buoyancy sensor, a temperature sensor, a liquid level sensor, a floating body and a device for measuring water and gas in and out of the container, wherein the buoyancy sensor, the temperature sensor, the liquid level sensor and the floating body are arranged in the measuring container; wherein,
the collecting device comprises a material inlet and outlet pipe, a material inlet valve and a material inlet pipe which are communicated with a container of the measured material;
the detection device comprises a measuring container, a cover plate, a buoyancy sensor, a temperature sensor, a liquid level sensor and a floating body, wherein the buoyancy sensor, the temperature sensor and the liquid level sensor are arranged in the measuring container;
the recovery device comprises a material inlet and outlet pipe, a material discharge pipe and a material discharge valve which are communicated with the container of the measured material;
the cleaning device comprises a water inlet valve, a water inlet pipe and a water pipe, wherein one end of the water inlet pipe is connected with the water inlet device, the other end of the water inlet pipe is connected with the water inlet valve, the other end of the water inlet valve is connected with the upper end of the water pipe through a pipeline, and the lower end of the water pipe is positioned in the measuring container.
The device for measuring water and gas in and out of the container comprises a water pipe and a gas communicating pipe which penetrate through a cover plate and are fixedly connected with the cover plate in a sealing way, the lower ends of the gas communicating pipe and the water pipe are positioned in the measuring container, and the upper end of the gas communicating pipe is respectively connected with a vacuum valve and a vacuum source in sequence from right to bottom through a three-way joint and a pipeline; the upper end is longitudinally connected with a three-way joint; the three-way joint is connected with the air inlet pipe and the air inlet valve in sequence in the left transverse direction through the pipeline, and is connected with the emptying valve and the emptying pipe in sequence in the right transverse direction.
The measuring container is structurally characterized in that the upper part of the measuring container is cylindrical and the lower part of the measuring container is conical, and the lower part of the measuring container is communicated with the feeding and discharging pipe.
The upper opening of the measuring container is hermetically connected with the cover plate.
The method for measuring the brix of the sugar solution by using the online automatic brix measuring device comprises the following steps:
(1) according to the conditions of sugar production equipment and the requirements of a measurement process, a whole set of operation control program is compiled on a computer and a corresponding buoyancy and brix operation model is established;
(2) inputting the programmed control program into a programmable controller;
(3) communicating a body measuring device with a measured material container, connecting air inlet and water inlet facilities, and connecting air passages and control circuits of all valves;
(4) the operation flow is as follows:
before operation, manually testing signals of each sensor and whether all valves work normally, inputting related parameters to ensure that all valves are in a closed state, and simultaneously, measuring a container to be in a completely closed state;
the operation is started, sampling is carried out, air in the inner cavity of the measuring container is sucked away through the air-water pipe and the vacuum suction effect, and the inner cavity of the measuring container is gradually in a vacuum state; the feeding pneumatic valve is opened, sugar liquor/materials in a material container to be measured enter the measuring container through the feeding pipe, when the liquid level of the materials in the measuring container touches the bottom of the liquid level sensor, the electrode and the metal outer wall of the measuring container form a closed loop through material conduction, generated electric signals are transmitted to the controller, the controller instructs the feeding pneumatic valve and the vacuum valve to be closed, the materials in the material container to be measured are cut off to continuously enter the measuring container, vacuum suction work is stopped, and sampling is completed;
detecting, opening an emptying valve, and measuring that the inner cavity of the container is in a normal pressure state; the principle that materials with different hammering degrees generate different buoyancy under the same volume is utilized. The buoyancy and the temperature in the material are measured by the buoyancy sensor and the temperature sensor to be converted into electric signals, and the electric signals are transmitted to the controller; according to the set acquisition time, the controller acquires the buoyancy and temperature signals and then carries out operation processing to obtain a hammered value, and the hammered value is displayed on a display screen or output by other communication modes; completing detection;
then, the controller instructs the discharge pneumatic valve to open to communicate the measuring container with the measured material container; if the measured material container is in a vacuum negative pressure state, a certain pressure difference is formed between the measured container and the measured material container due to the fact that the measured container is in a normal pressure state, the material in the measured container is sucked back through the discharging pneumatic valve and the discharging pipe by vacuum in the measured material container, and the measured sample returns. If the measured material container is in a normal pressure state or the pressure difference between the measured material container and the measured container is too small, the measured sample cannot be quickly recovered into the measured material container, the controller opens the air inlet valve and closes the exhaust valve through instructions, compressed air enters through the air inlet pipe, the pressure in the inner cavity of the measured container is increased, and the material sample is sent into the measured material container; recovering a sample; then the discharge pneumatic valve is closed, the emptying valve is opened, and high-pressure air in the measuring container is discharged. At this point one measurement is completed. The above procedures are circulated, so that continuous on-line intermittent measurement is realized;
(5) when the measurement reaches the set measurement times (or operation time), automatically entering the cleaning stage of the inside of the measurement container according to a program, and operating the following steps:
opening a water inlet valve and an exhaust valve, enabling water to enter the measuring container from a water pipe, and washing and soaking the floating body and the inner wall of the measuring container; when the water level in the measuring container rises to touch the electrode of the liquid level sensor, the controller instructs the water inlet valve to close. Waiting for a certain time, and cleaning the inner wall of the measuring container and the residual materials on the floating body by water; the controller instructs the discharge pneumatic valve to open, and if the inside of the measured material container is in a negative pressure state, the water in the measured container is sucked back into the measured material container by using the vacuum in the measured material container; if the measured material container is in a normal pressure state or the vacuum pressure difference is too small, water in the measured container cannot flow into the measured material container automatically or slowly, the controller instructs the air inlet valve to open and the exhaust valve to close, the compressed air enters the measured container, the water in the measured container is pressed into the measured material container, then the discharge pneumatic valve is closed, the exhaust valve is opened, and the high-pressure air in the measured container is discharged. The cleaning procedure is repeated for 2-3 times to complete the cleaning operation step, and the device completes the self-calibration function at the same time and waits for entering the next measurement of the brix.
The online automatic measuring device for the brix and the measuring method thereof integrate sample collection, detection, recovery and cleaning, and a sample collection pipeline and a recovery pipeline of the measuring device are respectively connected with a measured material container through a pneumatic valve and a connecting pipeline; the pressure difference method generated by vacuum or compressed air ensures that the sample of the measured material can flow back and forth between the container of the measured material and the measuring container according to the program requirement. The valve switches in the processes of collecting, detecting, recovering and cleaning the material samples are controlled by the control display. The buoyancy sensor, the temperature sensor and the liquid level sensor are arranged in the inner cavity of the measuring container, and the inner cavity of the measuring container can be ensured to form a closed state by closing the relevant valves; when guaranteeing to carry out vacuum pumping or compressed air and getting into, measure the container inner chamber and form certain vacuum state or atmospheric pressure state, solve and measure the container and can gather material sample, can retrieve material sample to the measured object material container in again problem. The liquid level sensor is used for identifying the set height reached by the material after entering the measuring container; the buoyancy sensor is used for measuring the buoyancy value when the buoyancy is completely soaked by the material after the liquid level of the material reaches a set height (the lower end of the liquid level sensor); the temperature sensor is used for measuring the temperature of the materials in the container. The buoyancy sensor signal, the temperature sensor signal and the liquid level signal are continuously transmitted to the control display, the control display processes the relevant signals and outputs instructions to control the relevant valves according to the program requirements. And the related parameters and the measurement result values are input and displayed on the touch screen. The whole measuring process is controlled by the controller, and the brix of the sugar solution and the massecuite can be automatically and rapidly measured. The operation is reliable, the measurement is accurate, the efficiency is improved, and the cost is reduced.
Therefore, the company breaks through a plurality of technical difficulties through years of research, trial production and field use by virtue of original patents (patent numbers 2008201043875 and 201220573631.9) and years of production and use experiences, and the measurement speed and precision of a prototype meet the national production requirements.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, a controller a, a measuring device B, and a measuring device C are a measured material container, an air inlet pipe 1, an air inlet valve 2, a three-way joint 3, an emptying valve 4, an emptying pipe 5, an inlet pipe 6, an inlet valve 7, a communicating pipe 8, a vacuum valve 9, a vacuum source 10, a cover plate 11, a buoyancy sensor 12, a temperature sensor 13, an electrode liquid level sensor 14, a connecting rod 15, a measuring container 16, a floating body 17, an inlet pipe 18, a feed valve 19, a discharge pipe 20, a discharge valve 21, a water pipe 22, and a feed and discharge pipe 23.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 shows a schematic structural diagram of the present invention, and the present invention includes a controller a, a measuring device B and a container C for measured material. The controller A comprises a touch display, and a programmable controller is adopted; wherein, the measured material container C is a tank body or a pipeline. Measurement apparatus, see inside the dashed box B in the figure: the measuring container 16 is generally formed by processing steel materials, such as stainless steel, a cover plate 11 is arranged at the upper opening, and the cover plate 11 is fixedly connected with the upper opening of the measuring container 16 in a sealing way; the measuring container 16 is of an upper cylindrical and lower conical structure, and the bottom surface of the measuring container is communicated with a measured material container C through a feeding and discharging pipe 24, a feeding valve 19 and a feeding pipe 18, a discharging pipe 20 and a discharging valve 21 respectively. A buoyancy sensor 12, a temperature sensor 13 and a liquid level sensor 14 are respectively fixed below the sealing cover plate 11 in the measuring container 16; the lower end of the buoyancy sensor 12 is fixedly connected with the floating body 17 through a connecting rod 15, so that the floating body 17 is suspended. The buoyancy generated by the float 17 is transmitted to the buoyancy sensor 12 through the connecting rod 15, and then transmitted to the controller a by the buoyancy sensor 12. Similarly, the detection information generated by the temperature sensor 13 and the liquid level sensor 14 is transmitted to the controller a. Wherein, the feeding valve 19 and the discharging valve 21 are pneumatic valves or control valves integrated with electromagnetic valves.
The water pipe 22 and the communicating pipe 8 penetrate through the cover plate 11 and are fixedly connected with the cover plate 11 in a sealing way, the lower end of the water pipe 22 is positioned in the measuring container 16, and the upper end of the water pipe is connected with the water inlet valve 7 and the water inlet pipe 6 through pipelines; the communicating pipe is sequentially connected with a vacuum valve 9 and a vacuum source 10; is longitudinally connected with the three-way joint 3. The three-way joint 3 is connected with the air inlet pipe 1 and the air inlet valve 2 in sequence in the left transverse direction through a pipeline, and is connected with the evacuation electromagnetic valve 4 and the evacuation pipe 5 in sequence in the right transverse direction. Wherein, the water inlet valve 7, the air inlet valve 2, the emptying valve 4 and the vacuum valve 9 are electromagnetic valves; the vacuum source 10 is an evacuation device such as a vacuum pump/machine, vacuum generator or vacuum vessel.
The control lines of all the electromagnetic valves and the sensors are connected to and controlled by the controller A. The controller a is a prior art product or can be readily made by one skilled in the art in light of the prior art and needs.
The method for measuring the brix of the sugar solution by using the online automatic brix measuring device comprises the following steps:
(1) according to the conditions of sugar production equipment and the requirements of a measurement process, a whole set of operation control program is compiled on a computer and a corresponding buoyancy and brix operation model is established;
(2) inputting a programmed control program into a programmable controller A;
(3) the manufactured integral measuring device B is communicated with a measured material container C through a feeding pipe 18 and a discharging pipe 20; the air inlet pipe 1 and the water inlet pipe 6 are respectively connected with corresponding facilities according to requirements, and water inlet pipelines and air pipelines are connected. The gas circuit and the control circuit of each valve are connected at the same time;
(4) the operation flow is as follows:
before operation, manually testing signals of each sensor and whether all valves work normally, inputting related parameters to ensure that all valves are in a closed state, and simultaneously, the measuring container 16 is also in a completely closed state;
when the operation starts, sampling is carried out, the vacuum valve 9 is opened, air in the inner cavity of the measuring container 16 is sucked away through the communicating pipe 8 and the vacuum suction effect, and the inner cavity of the measuring container 16 is gradually in a vacuum state; the feeding pneumatic valve 19 is opened, sugar liquid/materials in the measured material container C enter the measuring container 16 through the feeding pipe 18 under the action of vacuum pressure difference, when the liquid level of the materials in the measuring container 16 touches the bottom of the liquid level sensor 14, an electrode and the metal outer wall of the measuring container 16 form a closed loop through material conduction, a generated electric signal is transmitted to the controller A, the controller A instructs the feeding pneumatic valve 19 and the vacuum valve 9 to be closed, the materials in the measured material container C are cut off to continuously enter the measuring container 16, the vacuum suction work is stopped, and sampling is completed;
and (3) detecting, opening the emptying valve 4, communicating the outside air with the measuring container 16 through the emptying pipe 5, and changing the inner cavity of the measuring container 16 into a normal pressure state. The floating body 17 is completely soaked in the material, so that the buoyancy under the same volume is ensured to be obtained; the principle that materials with different hammering degrees generate different buoyancy under the same volume is utilized. The buoyancy and the temperature in the material are measured by a buoyancy sensor 12 and a temperature sensor 13 to be converted into electric signals, and the electric signals are transmitted to a controller A; according to the set acquisition time, the controller A acquires buoyancy and temperature signals and then carries out operation processing to obtain a hammered value, and the hammered value is displayed on a display screen or output in other communication modes; completing detection;
then, the controller a instructs the discharge pneumatic valve 21 to open to communicate the measuring container 16 with the measured material container C; if the measured material container C is in a vacuum negative pressure state, a certain pressure difference is formed between the measured material container C and the measured material container C due to the fact that the measured container 16 is in a normal pressure state, the material in the measured material container C is sucked back through the discharging pneumatic valve 21 and the discharging pipe 20 by vacuum in the measured material container C, and the measured sample returns. If the measured material container C is in a normal pressure state or the pressure difference between the measured material container C and the measured container 16 is too small, the measured sample cannot be quickly recovered into the measured material container C, the controller A opens the air inlet valve 2 and closes the exhaust valve 4 through instructions, compressed air enters through the air inlet pipe 1, the pressure in the inner cavity of the measured container 16 is increased, and the material sample is sent into the measured material container C; recovering a sample; the discharge pneumatic valve 21 is then closed, the evacuation valve 4 is opened, and the high-pressure air in the measuring vessel 16 is discharged. At this point one measurement is completed. The above procedures are circulated, so that continuous on-line intermittent measurement is realized;
(5) when the measurement reaches the set measurement times or the running time, automatically entering the cleaning stage of the inner part of the measurement container 16 according to the program, and the operation steps are as follows:
cleaning, opening a water inlet valve 7 and an exhaust valve 4, enabling water to enter a measuring container 16 from a water pipe 6 through a water pipe 22, and washing and soaking the floating body 17 and the inner wall of the measuring container 16; when the water level in the measuring vessel 16 rises to touch the level sensor 14 electrode, the controller a instructs the inlet valve 7 to close. Waiting for a certain time, cleaning the inner wall of the measuring container 16 and the residual materials on the floating body 17 by water; the controller A instructs the discharging pneumatic valve 21 to open, and if the inside of the measured material container C is in a negative pressure state, the water in the measuring container 16 is sucked back into the measured material container C by using the vacuum inside the measured material container C; if the measured material container C is in a normal pressure state or the vacuum pressure difference is too small, water in the measuring container 16 cannot flow into the measured material container C automatically or slowly, the controller A instructs the air inlet valve 2 to be opened and the exhaust valve 4 to be closed, the water enters the measuring container 16 through compressed air, the water in the measuring container 16 is pressed into the measured material container C, then the discharging pneumatic valve 21 is closed, the exhaust valve 4 is opened, and high-pressure air in the measuring container 16 is discharged. The cleaning procedure is repeated for 2-3 times to complete the cleaning operation step, and the device completes the self-calibration function at the same time and waits for entering the next measurement of the brix.
Claims (4)
1. The utility model provides an online automatic measuring device of brix, includes controller and measured material container, its characterized in that still includes:
the measuring device integrates the functions of collection, detection, recovery and cleaning, and comprises a measuring container, a buoyancy sensor, a temperature sensor, a liquid level sensor, a floating body and a device for measuring water and gas in and out of the container, wherein the buoyancy sensor, the temperature sensor, the liquid level sensor and the floating body are arranged in the measuring container; wherein,
the collecting device comprises a material inlet and outlet pipe, a material inlet valve and a material inlet pipe which are communicated with a container of the measured material;
the detection device comprises a measuring container, a cover plate, a buoyancy sensor, a temperature sensor, a liquid level sensor and a floating body, wherein the buoyancy sensor, the temperature sensor and the liquid level sensor are arranged in the measuring container;
the recovery device comprises a material inlet and outlet pipe, a material discharge pipe and a material discharge valve which are communicated with the container of the measured material;
the cleaning device comprises a water inlet valve, a water inlet pipe and a gas-water pipe, wherein one end of the water inlet pipe is connected with the water inlet device, the other end of the water inlet pipe is connected with the water inlet valve, the other end of the water inlet valve is connected with the upper end of the gas-water pipe through a pipeline and a four-way joint, and the lower end of the gas-water pipe is positioned in the measuring.
2. The measurement device of claim 1, wherein:
the device for measuring water and gas in and out of the container comprises a gas-water pipe, a water inlet valve, a water inlet pipe, a water outlet pipe and a water inlet pipe, wherein the gas-water pipe penetrates through a cover plate and is fixedly connected with the cover plate in a sealing manner; the right transverse direction is sequentially connected with a vacuum valve and a vacuum source; the longitudinal direction is connected with a three-way joint; the three-way joint is connected with the air inlet pipe and the air inlet valve in sequence in the left transverse direction through the pipeline, and is connected with the emptying valve and the emptying pipe in sequence in the right transverse direction.
3. The measurement device of claim 1, wherein:
the measuring container is structurally characterized in that the upper part of the measuring container is cylindrical and the lower part of the measuring container is conical, and the lower part of the measuring container is communicated with the feeding and discharging pipe.
4. The measurement device of claim 1, wherein:
the upper opening of the measuring container is hermetically connected with the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172208.7U CN207215646U (en) | 2017-09-13 | 2017-09-13 | The on-line automatic measurement apparatus of brix |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172208.7U CN207215646U (en) | 2017-09-13 | 2017-09-13 | The on-line automatic measurement apparatus of brix |
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| CN207215646U true CN207215646U (en) | 2018-04-10 |
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| CN201721172208.7U Expired - Fee Related CN207215646U (en) | 2017-09-13 | 2017-09-13 | The on-line automatic measurement apparatus of brix |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462494A (en) * | 2017-09-13 | 2017-12-12 | 广西南宁正浩测控科技有限公司 | The on-line automatic measurement apparatus of brix and its measuring method |
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2017
- 2017-09-13 CN CN201721172208.7U patent/CN207215646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462494A (en) * | 2017-09-13 | 2017-12-12 | 广西南宁正浩测控科技有限公司 | The on-line automatic measurement apparatus of brix and its measuring method |
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Granted publication date: 20180410 Termination date: 20190913 |