CN205426283U - Anticorrosion liquid level detection device - Google Patents
Anticorrosion liquid level detection device Download PDFInfo
- Publication number
- CN205426283U CN205426283U CN201521029010.4U CN201521029010U CN205426283U CN 205426283 U CN205426283 U CN 205426283U CN 201521029010 U CN201521029010 U CN 201521029010U CN 205426283 U CN205426283 U CN 205426283U
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- China
- Prior art keywords
- liquid level
- air
- detection device
- level detection
- pressure
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Abstract
The utility model provides an anticorrosion liquid level detection device and method, mainly by air cleaner, trachea, air pump, gas pressure regulator, intelligent unit, go out joint, connecting pipe, pressure connection, ooff valve, pressure sensor, pipe, prevent palirrhea float and adjustable nozzle. Air after air cleaner filters is exported by the air pump, flows in the pipe again behind the ooff valve, is provided with pressure sensor in the pipe, and air pressure is greater than when preventing that palirrhea float receives buoyancy when the pipe in, and the air is discharged from the adjustable nozzle, and a decline ripples appears in air pressure in the pipe afterwards, and decline ripples pressure value before is then corresponding liquid level effective value, and intelligent unit gathers pressure signal, can calculate here liquid level value according to certain algorithm.
Description
Technical field
This utility model relates to a kind of liquid level detection device, in particular to a kind of anticorrosion liquid level detection device.
Background technology
Level Detection is exactly to measure the height of liquid in containers, and the device being currently used for measuring liquid level mainly has: floating ball type liquid-level meter, pressure-type liquidometer, ultrasonic level gage and radar level gauge etc..Two critical pieces of floating ball type liquid-level meter are ball float and inserted link, when measurement has corrosive liquids liquid level, and ball float surface and inserted link inwall corrosion-inhibiting coating to be installed additional, this causes the cost of liquidometer to be significantly increased, and, corrosion-inhibiting coating is easily damaged comparatively speaking.The ultimate principle of pressure-type liquidometer is the principle being directly proportional according to fluid pressure and liquid height, by installing pressure transducer in liquid bottom, then institute's pressure measurement force value is converted to level value.The measurement parts of conventional pressure formula liquidometer directly contact with fluid to be measured, thus actually used time to select different pressure transducer diaphragms according to the degree of corrosion of surveyed liquid, this can cause type selecting more complicated, and diaphragm is expensive.Ultrasonic level gage and radar level gauge broadly fall into Non-contact measurement type liquidometer, so not limited by tested liquid level, can be widely used for measuring various liquid, but its main deficiency to be certainty of measurement the most affected by environment and price is the most expensive in above-mentioned several liquidometer.
Utility model content
This utility model provides a kind of anticorrosion liquid level detection device, and the technical scheme of employing is as follows:
A kind of anticorrosion liquid level detection device provided by the utility model, described device includes main air filter, air pump, trachea, barostat, secondary air filter, intelligent cell, air outlet adapter, connecting tube, switch valve, inlet suction port, pressure transducer, conduit, antireflux float and adjustable nozzle, wherein main air filter connects air pump input by trachea, air pump output is connected to barostat, barostat connects secondary air filter, secondary air filter connects air outlet adapter, air outlet adapter is connected by connecting tube and switch valve again, switch valve connects inlet suction port, inlet suction port is connected on conduit, pressure transducer is arranged on catheter lock one end, the conduit other end connects adjustable nozzle, connect near the position of adjustable nozzle and have antireflux float.
Further improvement as such scheme:
Described intelligent cell includes keyboard circuit, pressure signal processing circuit, display circuit, pump valve control circuit and the signal is far passed port.
Described guide-tube structure is that one end is closed, one end open.
It is indirectly connected with air filter before described inlet suction port.
Described pressure transducer is connected to catheter lock side, and adjustable nozzle is connected to catheter opening side.
The good to eat side of described conduit connects near adjustable nozzle position antireflux float.
Described antireflux float can block or turn on the flow pass of air-in-line according to the relation of air pressure suffered by it and liquid buoyancy.
The aperture scalable of described adjustable nozzle.
Described barostat can increase or reduce the force value of its output gas.
Whether buoyancy suffered by described air-in-line pressure and antireflux float reaches the basis for estimation of balance is the increase trend of pressure sensor measurements, minimizing trend or fluctuation range.
In this utility model, measuring cell discord corrosive liquid directly contacts, thus reduces the requirements of type selecting of pressure transducer diaphragm.And, it is simple that this device stretches into the modular construction in liquid, easy to make and be hardly damaged.It addition, conduit can be flexible material in this utility model, this makes mounting means can be top dress or side dress, adds ease of use.
Accompanying drawing explanation
Fig. 1 is this utility model agent structure schematic diagram.
Fig. 2 is the structure chart of this utility model intelligent cell.
Fig. 3 is this utility model Level Detection program flow diagram.
[reference numeral explanation] 1, gauge outfit；2, main air filter；3, trachea；4, air pump；5, barostat；6, secondary air filter；7, intelligent cell；8, air outlet adapter；9, connecting tube；10, inlet suction port；11, pressure transducer；12, switch valve；13, container；14, conduit；15, antireflux float；16, adjustable nozzle.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and methods for using them are more clearly understood from, in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As it is shown in figure 1, a kind of anticorrosion liquid level detection device provided by the utility model includes the gauge outfit part outside container 13 and the conduit portion within container 13.Table header is divided and is included main air filter 2, trachea 3, air pump 4, barostat 5, secondary air filter 6, intelligent cell 7 and air outlet adapter 8；Main air filter 2 connects the input of air pump 4 by trachea 3, and the output of air pump 4 is connected to barostat 5 by trachea 3, and barostat 5 connects secondary air filter 6 by trachea 3 again, and the output of secondary air filter 6 connects air outlet adapter 8；Conduit portion includes connecting tube 9, switch valve 12, inlet suction port 10, pressure transducer 11, conduit 14, antireflux float 15 and adjustable nozzle 16；Connecting tube 9 connects air outlet adapter 8 and the import of switch valve 12, and the outlet of switch valve 12 connects inlet suction port 10, and the opening and closing of switch valve 12 are controlled by intelligent cell 7；Conduit 14 one end is closed, one end open, pressure transducer 11 is arranged on conduit 14 and closes the bottom of one end, conduit 14 open at one end connects adjustable nozzle 16, near the above antireflux float 15 that is additionally provided with of adjustable nozzle 16, antireflux float 15 floats when suffered liquid buoyancy is more than conduit 14 inner air pressure, stops liquid reflux, move down, so that the air in conduit 14 is discharged from adjustable nozzle 16 when suffered buoyancy is less than air pressure.
As shown in Figure 2, the intelligent cell 7 of a kind of anticorrosion liquid level detection device provided by the utility model is with microcontroller 101 as core, including keyboard circuit 102, pressure signal processing circuit 103, display circuit 104, pump valve control circuit 105 and the signal is far passed port 105.Keyboard circuit 102 connects keyboard, for being configured device operating parameters；Pressure signal processing circuit 103 connects the pressure transducer 11 within conduit 14, microcontroller 101 it is input to after pressure signal is carried out pick-up process, further according to force value and the proportionate relationship of tested liquid level, microcontroller 101 obtains level value after algorithm process, level value is shown by display circuit 104 again, display circuit 104 also shows the mode of operation of this device as human-computer interaction interface, pump valve control circuit 105 is for controlling start and stop and the opening and closing of switch valve 12 of air pump 4, the signal is far passed port 106 is as the signal output interface of measuring instruments, measured value can be exported other equipment in a wired or wireless manner.
Shown in Fig. 1, Fig. 2 and Fig. 3, step and the method for this utility model detection liquid level are as follows:
S1, connecting the power supply circuits of device described in the utility model, use the keyboard booster air pump 4 on keyboard circuit 102, open switch valve 12, the aperture of regulation adjustable nozzle 16, during until the show value of display circuit 104 has increase trend but does not has increments；
S2, disconnection power supply circuits, device described in the utility model is arranged on the container 13 that fluid to be measured holds and (assumes that container has certain altitude liquid), now, owing to conduit 14 inner air pressure is zero (relative standard atmospheric pressure), antireflux float 15, at buoyancy float downward, blocks air from adjustable nozzle 16 passing away；
S3, being again coupled to power supply circuits, device described in the utility model enters automatic measuring state；
S4, microcontroller 101 perform initialization program shown in square frame 201, and putting former measured value is 0, and booster air pump, opens switch valve；
S5, microcontroller 101 perform pressure measuring value timing sampling program shown in square frame 202, and the sampling period of force value can be configured by keyboard circuit 102 herein, when program performs for the first time, and measured value=0；
S6, microcontroller 101 perform determining program shown in square frame 203, when program performs for the first time, measured value=former measured value=0 (threshold value is defaulted as 0), so Rule of judgment is set up, microcontroller 101 performs square frame 207 and 208 program, booster air pump, opening switch valve and measured value is assigned to former measured value, now the pressure in conduit 14 is gradually increased, and program returns and performs square frame 202 and square frame 203 again；
S7, increase to the buoyancy more than antireflux float 15 along with the pressure in conduit 14, air is discharged from adjustable nozzle 16, owing to compressed air is released suddenly, the air pressure value of conduit 14 fluctuates downwards, and now the Rule of judgment of square frame 203 is false, so turning to execution square frame 204, stop air pump, closing switch valve, the most former measured value is exactly corresponding pressure value produced by liquid in container 13, and measured value is assigned to former measured value (square frame 205) the most again；
S8, microcontroller 101 perform program shown in square frame 206, according to liquid level and the proportionate relationship of pressure, are calculated liquid level height value, and program returns to square frame 202 and is circulated.
In the example application process that this utility model is above-mentioned, if the liquid level in container 13 declines after step S8, then antireflux float 15 buoyancy reduces, in conduit 14, air pressure is more than buoyancy, causes air again to be discharged from adjustable nozzle 16, air pressure pressure drop after discharge, antireflux float 15 recloses conduit 14, now performing square frame 204,205 and 206 program, corresponding pressure value is corresponding with current level value；If after step S8, the liquid level in container 13 is constant or rises, then antireflux float 15 is always maintained at closing, thus measured value is equal to former measured value in square frame 203, so program performs square frame 207 and 208, booster air pump, open switch valve, and measured value is assigned to former measured value, then program again returns to square frame 202 and 203, performs followed by S7 step, obtaining new corresponding pressure value, this value reflects current actual liquid level value equally.
The foregoing is only the embodiment that this utility model is exemplary, be not limited to scope of the present utility model.Any those skilled in the art, the equivalent variations made on the premise of without departing from design of the present utility model and principle and amendment, the use step of some device is increased or decreased, the scope of this utility model protection all should be belonged to.
Claims (10)
1. an anticorrosion liquid level detection device, it is characterized in that: described device includes main air filter, air pump, trachea, barostat, secondary air filter, intelligent cell, air outlet adapter, connecting tube, switch valve, inlet suction port, pressure transducer, conduit, antireflux float and adjustable nozzle, wherein main air filter connects air pump input by trachea, air pump output is connected to barostat, barostat connects secondary air filter, secondary air filter connects air outlet adapter, air outlet adapter is connected by connecting tube and switch valve again, switch valve connects inlet suction port, inlet suction port is connected on conduit, pressure transducer is arranged on catheter lock one end, the conduit other end connects adjustable nozzle, connect near the position of adjustable nozzle and have antireflux float.
2. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: described intelligent cell includes keyboard circuit, pressure signal processing circuit, display circuit, pump valve control circuit and the signal is far passed port.
3. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: described guide-tube structure is that one end is closed, one end open.
4. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: it is indirectly connected with air filter before described inlet suction port.
5. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: described pressure transducer is connected to catheter lock side, and adjustable nozzle is connected to catheter opening side.
6. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: the good to eat side of described conduit connects near adjustable nozzle position antireflux float.
7. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: described antireflux float can block or turn on the flow pass of air-in-line according to the relation of air pressure suffered by it and liquid buoyancy.
8. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: the aperture scalable of described adjustable nozzle.
9. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: described barostat can increase or reduce the force value of its output gas.
10. anticorrosion liquid level detection device as claimed in claim 1, it is characterised in that: whether buoyancy suffered by described air-in-line pressure and antireflux float reaches the basis for estimation of balance is the increase trend of pressure sensor measurements, minimizing trend or fluctuation range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029010.4U CN205426283U (en) | 2015-12-10 | 2015-12-10 | Anticorrosion liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521029010.4U CN205426283U (en) | 2015-12-10 | 2015-12-10 | Anticorrosion liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205426283U true CN205426283U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521029010.4U Expired - Fee Related CN205426283U (en) | 2015-12-10 | 2015-12-10 | Anticorrosion liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205426283U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352563A (en) * | 2015-12-10 | 2016-02-24 | 江南大学 | Anti-corrosion liquid level detection device and anti-corrosion liquid level detection method |
| CN112130594A (en) * | 2019-06-24 | 2020-12-25 | 佛山市顺德区美的饮水机制造有限公司 | Water tank assembly, liquid level control method, water supply device, and computer storage medium |
-
2015
- 2015-12-10 CN CN201521029010.4U patent/CN205426283U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352563A (en) * | 2015-12-10 | 2016-02-24 | 江南大学 | Anti-corrosion liquid level detection device and anti-corrosion liquid level detection method |
| CN105352563B (en) * | 2015-12-10 | 2018-11-30 | 江南大学 | A kind of anticorrosion liquid level detection device |
| CN112130594A (en) * | 2019-06-24 | 2020-12-25 | 佛山市顺德区美的饮水机制造有限公司 | Water tank assembly, liquid level control method, water supply device, and computer storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20201210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |