CN113324176A - Automatic water sample switching device and method - Google Patents
Automatic water sample switching device and method Download PDFInfo
- Publication number
- CN113324176A CN113324176A CN202110694507.1A CN202110694507A CN113324176A CN 113324176 A CN113324176 A CN 113324176A CN 202110694507 A CN202110694507 A CN 202110694507A CN 113324176 A CN113324176 A CN 113324176A
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- water sample
- temperature
- control system
- water inlet
- inlet pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/10—Arrangements for supervising or controlling working operations for taking out the product in the line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a water sample automatic switching device and a method, which comprises a flow monitoring system, a temperature monitoring and controlling system, a chemical instrument, a calculation and analysis system, a control system and a plurality of water inlet pipelines, wherein the flow monitoring system is connected with the temperature monitoring and control system; the device and the method can realize automatic switching of different water samples, realize continuous measurement of different water samples and have higher measurement accuracy.
Description
Technical Field
The invention belongs to the field of power generation technology water quality monitoring, and relates to a water sample automatic switching device and method.
Background
The inaccurate chemical supervision of thermal power factory steam system can lead to steam quality deterioration problem can not in time discover, and the deviation appears in chemical control, and generating set steam system takes place to corrode, scale deposit and long-pending salt, causes huge economic loss. Therefore, each water sample needs to be monitored on line through a chemical instrument, the measurement accuracy of the on-line chemical instrument is ensured, the measured value of the chemical instrument is controlled within a qualified range, and the problems of corrosion, scaling and salt deposition of thermal equipment are effectively prevented.
When carrying out online monitoring to each water sample through chemical instrumentation at present, there is the following problem:
1) when measuring different water samples through chemical instrumentation, need manual change advance the appearance pipe, the operation is comparatively loaded down with trivial details, unable continuous measurement.
2) When measuring the water sample through chemical instrumentation, the water sample velocity of flow mainly controls through manual regulating valve size, and the operation is comparatively loaded down with trivial details, and along with the load fluctuation, the water sample flow also changes, influences chemical instrumentation accuracy of measurement.
3) When the chemical instrument is used for measuring a water sample, the temperature control is not accurate, the temperature change range is large, and the measurement accuracy of the chemical instrument is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the device and the method for automatically switching the water samples, the device and the method can realize automatic switching of different water samples and continuous measurement of different water samples, and the measurement accuracy is high.
In order to achieve the aim, the automatic water sample switching device comprises a flow monitoring system, a temperature monitoring and controlling system, a chemical instrument, a calculation and analysis system, a control system and a plurality of water inlet pipelines;
each water inlet pipeline is provided with a valve, the outlet of each water inlet pipeline is communicated with the inlet of a flow monitoring system after being connected with a pipeline through a pipeline, the outlet of the flow monitoring system is communicated with the inlet of a temperature monitoring and controlling system, the outlet of the temperature monitoring and controlling system is communicated with the inlet of a chemical instrument, the output end of the flow monitoring system is connected with the input end of the controlling system, the output end of the chemical instrument is connected with the input end of a computational analysis system, the output end of the computational analysis system is connected with the input end of the controlling system, and the output end of the controlling system is connected with the control end of the valve.
The temperature monitoring and controlling system comprises a temperature detecting device and a temperature adjusting device, wherein an outlet of the flow monitoring system is communicated with an inlet of the chemical instrument through the temperature adjusting device and the temperature detecting device in sequence, and the temperature detecting device and the temperature adjusting device are connected with the controlling system.
The temperature adjusting device comprises a heater and a cooler.
In operation, the control system controls the state of each valve, wherein only one valve is open and the remaining valves are closed.
When the water sample flow measuring device works, the control system controls the opening of the valve on the corresponding water inlet pipeline according to the water sample flow signal detected by the flow monitoring system, so that the water sample flow entering the chemical instrument is within the flow measuring range of the chemical instrument.
When the water sample temperature measuring device works, the control system detects the temperature of the water sample through the temperature detection device and adjusts the temperature of the water sample through the temperature adjusting device according to the temperature of the current water sample, so that the temperature of the water sample entering the chemical instrument is within the temperature measuring range of the chemical instrument.
The automatic water sample switching method comprises the following steps:
when detecting water sample in any water inlet pipeline, the valve on the water inlet pipeline is opened, the valves on the rest water inlet pipelines are closed, the water sample on the water inlet pipeline enters a chemical instrument for measurement after the flow monitoring system monitors the flow and the temperature monitoring and controlling system monitors and controls the water temperature, the chemical instrument sends the measurement data of the water sample to a calculation and analysis system, when the fluctuation range of the measured data of the water sample in the preset time is in the preset range, calculating the average value of the measured data of the water sample in the preset time, then the average value obtained by calculation is used as the final measurement data of the water sample in the water inlet pipeline and is sent to a control system, and the measurement of the water sample in the water inlet pipeline is completed, the control system closes the valve on the water inlet pipeline, opens the valve on the next water inlet pipeline, and then measures the water sample on the next water inlet pipeline.
The invention has the following beneficial effects:
the automatic water sample switching device and the method are specifically operated, when a water sample in any water inlet pipeline is detected, a valve on the water inlet pipeline is opened, valves on the rest water inlet pipelines are closed, the water sample on the water inlet pipeline enters a chemical instrument for measurement after the flow monitoring and temperature monitoring and controlling system monitors and controls the water temperature, so as to adapt to the current chemical instrument, the chemical instrument sends the measurement data of the water sample to a calculation and analysis system, when the fluctuation range of the measurement data of the water sample in the preset time is within the preset range, the average value of the measurement data of the water sample in the preset time is calculated, then the calculated average value is used as the final measurement data of the water sample in the water inlet pipeline, so as to improve the measurement accuracy, then the valve on the water inlet pipeline is closed, so as to detect the water sample in the next water inlet pipeline, the automatic switching of different water samples is realized, and the continuous measurement of different water samples is realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a flow monitoring system, 2 is a temperature monitoring and control system, 3 is a chemical instrument, 4 is a calculation analysis system, 5 is a control system, and 6 is a valve.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the automatic water sample switching device of the present invention includes a flow monitoring system 1, a temperature monitoring and controlling system 2, a chemical instrument 3, a calculation and analysis system 4, a control system 5 and a plurality of water inlet pipes; each water inlet pipeline is provided with a valve 6, the outlet of each water inlet pipeline is communicated with the inlet of the flow monitoring system 1 after being connected with a pipeline, the outlet of the flow monitoring system 1 is communicated with the inlet of the temperature monitoring and controlling system 2, the outlet of the temperature monitoring and controlling system 2 is communicated with the inlet of the chemical instrument 3, the output end of the flow monitoring system 1 is connected with the input end of the controlling system 5, the output end of the chemical instrument 3 is connected with the input end of the computational analysis system 4, the output end of the computational analysis system 4 is connected with the input end of the controlling system 5, and the output end of the controlling system 5 is connected with the control end of the valve 6.
In the detection process, only one valve 6 is opened, other valves 6 are in closed states, and the opening degree of the valve 6 is controlled by the control system 5.
The control system 5 automatically switches the valves 6 according to the output signal of the computational analysis system 4.
The flow monitoring system 1 monitors a water sample flow signal, sends the water sample flow signal to the control system 5, and the control system 5 automatically adjusts the opening of the valve 6 according to the flow so that the flow of water entering the chemical instrument 3 meets the flow range of the chemical instrument 3.
The temperature monitoring and controlling system 2 comprises a temperature detecting device and a temperature adjusting device, wherein an outlet of the flow monitoring system 1 is communicated with an inlet of the chemical instrument 3 through the temperature adjusting device and the temperature detecting device in sequence, and the temperature detecting device and the temperature adjusting device are connected with the controlling system 5; temperature regulation apparatus includes heater and cooler, and at the during operation, control system 5 passes through the temperature that temperature-detecting device detected the water sample to pass through the temperature of temperature regulation apparatus regulation water sample according to the temperature of current water sample, make the temperature that enters into chemical instrumentation 3 water sample in the temperature measurement within range of chemical instrumentation 3.
The automatic water sample switching method comprises the following steps:
when a water sample in any water inlet pipeline is detected, a valve 6 on the water inlet pipeline is opened, valves 6 on the rest water inlet pipelines are closed, the water sample on the water inlet pipeline enters a chemical instrument 3 for measurement after the flow and temperature monitoring and control system 1 monitors and controls the water temperature, the chemical instrument 3 sends the measurement data of the water sample to a calculation and analysis system 4, when the fluctuation range of the measurement data of the water sample in a preset time is within a preset range, the average value of the measurement data of the water sample in the preset time is calculated, the calculated average value is used as the final measurement data of the water sample in the water inlet pipeline and sent to a control system 5, the measurement of the water sample in the water inlet pipeline is completed, the control system 5 closes the valve 6 on the water inlet pipeline, and opens the valve 6 on the next water inlet pipeline, and measuring the water sample on the next water inlet pipeline until the measurement of the water samples in all the water inlet pipelines is completed.
Claims (7)
1. An automatic water sample switching device is characterized by comprising a flow monitoring system (1), a temperature monitoring and controlling system (2), a chemical instrument (3), a calculation and analysis system (4), a control system (5) and a plurality of water inlet pipelines;
all be provided with valve (6) on each inlet pipe way, the export of each inlet pipe way is managed the back through the pipeline and is linked together with the entry of flow monitoring system (1), the export of flow monitoring system (1) and the entry of temperature monitoring and control system (2), the export of temperature monitoring and control system (2) is linked together with the entry of chemical instrumentation (3), the output of flow monitoring system (1) is connected with the input of control system (5), the output of chemical instrumentation (3) is connected with the input of computational analysis system (4), the output of computational analysis system (4) is connected with the input of control system (5), the output of control system (5) is connected with the control end of valve (6).
2. The automatic water sample switching device according to claim 1, wherein the temperature monitoring and controlling system (2) comprises a temperature detecting device and a temperature adjusting device, wherein the outlet of the flow monitoring system (1) is communicated with the inlet of the chemical instrument (3) through the temperature adjusting device and the temperature detecting device in sequence, and the temperature detecting device and the temperature adjusting device are connected with the controlling system (5).
3. The automatic water sample switching device according to claim 2, wherein the temperature regulating device comprises a heater and a cooler.
4. An automatic water sample switching device according to claim 1, wherein in use the control system (5) controls the state of each valve (6), wherein only one valve (6) is open and the remaining valves (6) are closed.
5. The automatic water sample switching device according to claim 1, wherein, in operation, the control system (5) controls the opening of the corresponding water inlet pipeline upper valve (6) according to the water sample flow signal detected by the flow monitoring system (1), so that the flow of the water sample entering the chemical meter (3) is within the flow measurement range of the chemical meter (3).
6. The automatic water sample switching device according to claim 5, wherein in operation, the control system (5) detects the temperature of the water sample through the temperature detection device and adjusts the temperature of the water sample through the temperature adjustment device according to the temperature of the current water sample, so that the temperature of the water sample entering the chemical meter (3) is within the temperature measurement range of the chemical meter (3).
7. An automatic water sample switching method, based on the automatic water sample switching device of claim 1, comprising the steps of:
when a water sample in any water inlet pipeline is detected, a valve (6) on the water inlet pipeline is opened, valves (6) on the rest water inlet pipelines are closed, the water sample on the water inlet pipeline enters a chemical instrument (3) for measurement after the flow and the temperature of the water sample are monitored and controlled by a flow monitoring system (1) and a temperature monitoring and controlling system (2), the chemical instrument (3) sends measurement data of the water sample to a calculation and analysis system (4), when the fluctuation range of the measurement data of the water sample in preset time is within a preset range, the average value of the measurement data of the water sample in the preset time is calculated, then the calculated average value is used as final measurement data of the water sample in the water inlet pipeline and sent to a control system (5), the measurement of the water sample in the water inlet pipeline is completed, and the control system (5) closes the valve (6) on the water inlet pipeline, and opening a valve (6) on the next water inlet pipeline, and then measuring the water sample on the next water inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110694507.1A CN113324176A (en) | 2021-06-22 | 2021-06-22 | Automatic water sample switching device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110694507.1A CN113324176A (en) | 2021-06-22 | 2021-06-22 | Automatic water sample switching device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113324176A true CN113324176A (en) | 2021-08-31 |
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ID=77424293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110694507.1A Pending CN113324176A (en) | 2021-06-22 | 2021-06-22 | Automatic water sample switching device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113324176A (en) |
-
2021
- 2021-06-22 CN CN202110694507.1A patent/CN113324176A/en active Pending
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