CN220230645U - Bubble type liquid level meter capable of automatically eliminating zero drift - Google Patents
Bubble type liquid level meter capable of automatically eliminating zero drift Download PDFInfo
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- CN220230645U CN220230645U CN202321673577.XU CN202321673577U CN220230645U CN 220230645 U CN220230645 U CN 220230645U CN 202321673577 U CN202321673577 U CN 202321673577U CN 220230645 U CN220230645 U CN 220230645U
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- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 47
- 238000005259 measurement Methods 0.000 abstract description 8
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- 230000008859 change Effects 0.000 description 17
- 238000009423 ventilation Methods 0.000 description 16
- 230000003068 static effect Effects 0.000 description 7
- 238000007664 blowing Methods 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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Abstract
The utility model relates to the technical field of liquid level meters, in particular to a bubble type liquid level meter capable of automatically eliminating zero drift, which comprises a case, a constant-current air pump arranged at the upper end of the front side of the inner wall of the case, an air storage tank connected with the output end of the constant-current air pump, and a switch arranged at the lower end of the case, which is close to the air storage tank; the rear side of the case, which is close to the constant-current air pump, is provided with a tee joint, the tee joint is connected with the output end of the constant-current air pump, and the other end of the tee joint is connected with an inflation joint which is connected with an air storage tank; an electromagnetic valve is arranged at one end of the machine case, which is close to the rear side of the tee joint, and is connected with a vent pipe joint, the lower end of the vent pipe joint is connected with a vent pipe, and the vent pipe is buried on the ground and extends to the underwater; a circuit board is arranged on one side of the top end in the case and used for circuit communication of the electromagnetic valve. The device reasonable in design, this bubble type liquid level gauge can effectually realize the invariable measurement to the water level, avoids unable adaptation still water pressure variation that traditional air pump leads to, does benefit to the acquisition of water level developments, does benefit to the use.
Description
Technical Field
The utility model relates to the technical field of liquid level meters, in particular to a bubble type liquid level meter capable of automatically eliminating zero drift.
Background
The bubble type water level gauge has high measurement precision, no gas cylinder, no well logging, no maintenance, vibration resistance and long service life, and is especially suitable for flowing water, large, medium and small rivers, reservoirs, or industrial wastewater with serious water pollution and strong corrosiveness.
The pressure sensor of the bubble type water level gauge is arranged on the bank, only one air blowing pipe enters water, the pipe orifice of the air blowing pipe is fixed at a position under water, the other end of the air blowing pipe is connected with a bank instrument, an air bag is arranged in the instrument, and the air bag is connected with an air pump. The working principle is that the pressures of all points are equal in a sealed gas container. If the gas at the outlet of the lance tube does not flow, the gas pressure at the outlet is equal to the hydrostatic pressure at that point and also equal to the pressure inside the lance tube.
When the hydrostatic pressure is not equal to the pressure of the air outlet, namely the air outlet is not constantly and outwards air-out, the hydrostatic pressure cannot be adapted to the change at the moment, so that the inaccurate measurement of the water level is caused. For this reason, there is a need to propose an improvement for solving the above-mentioned problems.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a bubble type liquid level meter capable of automatically eliminating zero drift, which can effectively realize constant measurement of water level, avoid the condition that the traditional air pump cannot adapt to the change of static water pressure, and is beneficial to dynamically acquiring the water level and using.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the bubble type liquid level meter capable of automatically eliminating zero drift comprises a case, a constant-current air pump arranged at the upper end of the front side of the inner wall of the case, wherein the output end of the constant-current air pump is connected with an air storage tank, and a switch is arranged at the lower end of the case, which is close to the air storage tank; the rear side of the case, which is close to the constant-current air pump, is provided with a tee joint, the tee joint is connected with the output end of the constant-current air pump, and the other end of the tee joint is connected with an inflation joint which is connected with an air storage tank; an electromagnetic valve is arranged at one end of the machine case, which is close to the rear side of the tee joint, the electromagnetic valve is connected with a vent pipe joint, the lower end of the vent pipe joint is connected with a vent pipe, and the vent pipe is buried on the ground and extends to the underwater; a circuit board is arranged on one side of the top end in the case and used for the circuit communication of the electromagnetic valve; the outer side of the lower end of the case is connected with a power line, the power line is electrically connected with the electromagnetic valve, the constant-current air pump and the circuit board, the circuit board is provided with a pressure sensor, and the pressure sensor is connected with the tee joint.
Preferably, the constant-flow air pump is commercially available with the model of BUHLER PS.2.3.
Preferably, the switch is used for controlling the opening and closing of the constant-current air pump.
Preferably, a relay is further installed on the switch, and the relay is used for controlling the output power of the constant-current air pump.
Preferably, clamping grooves are formed in the middle of the upper end and the lower end of the case, and are used for the penetration and connection fixation of internal circuits.
Preferably, the switch, the ventilation pipe joint and the inflation joint extend to the lower side through the case, and the switch, the ventilation pipe joint and the inflation joint are connected with the lower end of the case.
Compared with the prior art, the utility model has the following beneficial effects:
the constant-flow air pump is arranged to realize the dynamic observation of the water level at any moment, and the characteristic of the moment change of the static pressure under water is combined, the constant-flow air pump is adopted to slowly and uniformly realize the mode that the air enters the water through the vent pipe, so that the purpose that the air pressure is equal to the static water pressure of the air outlet is achieved, the function of automatically adapting to the change of the static water pressure is realized, and the observation and the acquisition of the dynamic change of the water level are realized at any moment;
when zero drift occurs, that is, the gas pressure at the moment is unequal to the still water pressure at the gas outlet, the gas outlet thinking of the constant-flow gas pump is automatically controlled by the relay, so that the constant-flow gas pump can realize slow and uniform gas outlet, the mouth of the vent pipe is identical to the underwater still water pressure, that is, the relay is automatically adapted to the change of the still water pressure, the gas pressure is constantly controlled according to the change of the still water pressure, the acquisition of the dynamic change of the water level is realized, and the measurement of the water level value is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a right side view of the present utility model;
FIG. 3 is a schematic view of the bottom view of the present utility model;
FIG. 4 is a schematic side view of the present utility model;
fig. 5 is a schematic top view of the present utility model.
In the figure: 1. a chassis; 2. a circuit board; 3. a gas storage tank; 4. a tee joint; 5. a switch; 6. an electromagnetic valve; 7. a power line; 8. a vent tube joint; 9. an inflation joint; 10. a constant-flow air pump; 11. a clamping groove; 12. and a relay.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The bubble type liquid level meter capable of automatically eliminating zero drift as shown in the accompanying drawings 1-5 comprises a case 1, a constant-current air pump 10 arranged at the upper end of the front side of the inner wall of the case 1, an air storage tank 3 connected with the output end of the constant-current air pump 10, and a switch 5 arranged at the lower end of the case 1 close to the air storage tank 3; the rear side of the case 1, which is close to the constant-current air pump 10, is provided with a tee joint 4, the tee joint 4 is connected with the output end of the constant-current air pump 10, the other end of the tee joint 4 is connected with an inflation joint 9, and the inflation joint 9 is connected with the air storage tank 3; the electromagnetic valve 6 is arranged at one end of the machine case 1 close to the rear side of the tee joint 4, the electromagnetic valve 6 is connected with the ventilation pipe joint 8, the lower end of the ventilation pipe joint 8 is connected with a ventilation pipe, and the ventilation pipe is buried on the ground and extends to the water; a circuit board 2 is arranged on one side of the top end in the case 1 and is used for the circuit communication of the electromagnetic valve 6; the outside of machine case 1 lower extreme is connected with power cord 7, and power cord 7 is connected with solenoid valve 6, constant current air pump 10 and circuit board 2 electricity, is provided with pressure sensor on the circuit board 2, and pressure sensor links to each other with tee bend 4.
When the device works, firstly, air is filtered and purified by an air filter, then the air is pressed into the air storage tank 3 by the constant-flow air pump 10 through the one-way valve, and the air in the air storage tank 3 is respectively conveyed to the pressure sensor and the underwater ventilation pipe in two paths, so that a closed cavity for connecting the pressure sensor and the underwater ventilation pipe orifice is formed; when zero drift occurs, that is, the gas pressure at the moment is unequal to the still water pressure at the air outlet, then the air outlet thinking of the constant-flow air pump 10 is automatically controlled through the relay 12, so that the constant-flow air pump 10 can realize slow and uniform air outlet, the mouth of the vent pipe is identical to the underwater still water pressure, that is, the relay 12 is automatically adapted to the change of the still water pressure, the gas pressure is constantly controlled according to the change of the still water pressure, the acquisition of the dynamic change of the water level is realized, and the measurement of the water level value is realized.
The commercial model of the constant-current air pump 10 is BUHLER PS2.3, the switch 5 is used for controlling the opening and closing of the constant-current air pump 10, the switch 5 is also provided with a relay 12, and the relay 12 is used for controlling the output power of the constant-current air pump 10.
Clamping grooves 11 are formed in the middle of the upper end and the lower end of the case 1 and used for the penetration and connection fixation of internal circuits, the switch 5, the ventilation pipe joint 8 and the inflation joint 9 penetrate through the case 1 and extend to the lower side, and the switch 5, the ventilation pipe joint 8 and the inflation joint 9 are connected with the lower end of the case 1.
The working principle of the utility model is as follows:
1-5 of the specification, in the use process of the bubble type liquid level meter, the dynamic observation of the water level at any moment is realized through the constant-current air pump 10, and the characteristic of the change of the underwater static pressure moment is combined, the constant-current air pump 10 is adopted to slowly and uniformly realize the mode that the gas enters the water through the vent pipe, so that the purpose that the gas pressure is equal to the static water pressure of the gas outlet is achieved, the function of automatically adapting to the change of the static water pressure is realized, and the observation and the acquisition of the dynamic change of the water level are realized at any moment;
specific: firstly, air is filtered and purified by an air filter, then the air is pressed into an air storage tank 3 by a constant-flow air pump 10 through a one-way valve, the air in the air storage tank 3 is respectively conveyed to a pressure sensor and an underwater ventilation pipe in two ways, so that a closed cavity for connecting the pressure sensor and an underwater ventilation pipe orifice is formed, and according to the pressure transmission principle, when the air in a ventilation pipeline reaches dynamic balance, the pressure born by the underwater ventilation pipe orifice is transmitted to the pressure sensor through the ventilation pipe, so that the pressure born by the underwater ventilation pipe orifice is equal to the pressure born by the pressure sensor, and the absolute pressure value of a water head can be obtained by subtracting the atmospheric pressure value from the pressure value, so that the measured water level value can be obtained;
when zero drift occurs, that is, the gas pressure at the moment is unequal to the still water pressure at the gas outlet, then the gas outlet thinking of the constant-flow gas pump 10 is automatically controlled through the relay 12, so that the constant-flow gas pump 10 can realize slow and uniform gas outlet, the mouth of the vent pipe is identical to the underwater still water pressure, that is, the relay 12 is automatically adapted to the change of the still water pressure, the gas pressure is constantly controlled according to the change of the still water pressure, the acquisition of the dynamic change of the water level is realized, and the measurement of the water level value is realized;
to sum up: this bubble type level gauge can effectually realize the invariable measurement to the water level, avoids unable adaptation still water pressure variation that traditional air pump leads to, does benefit to the acquisition of water level developments, does benefit to the use.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The bubble type liquid level meter capable of automatically eliminating zero drift is characterized by comprising a machine case (1), and a constant-current air pump (10) arranged at the upper end of the front side of the inner wall of the machine case (1), wherein the output end of the constant-current air pump (10) is connected with an air storage tank (3), and a switch (5) is arranged at the lower end of the machine case (1) close to the air storage tank (3); a tee joint (4) is arranged at the rear side of the case (1) close to the constant-current air pump (10), the tee joint (4) is connected with the output end of the constant-current air pump (10), the other end of the tee joint (4) is connected with an inflation connector (9), and the inflation connector (9) is connected with the air storage tank (3); an electromagnetic valve (6) is arranged at one end of the rear side of the case (1) close to the tee joint (4), the electromagnetic valve (6) is connected with a vent pipe joint (8), the lower end of the vent pipe joint (8) is connected with a vent pipe, and the vent pipe is buried on the ground and extends to the underwater; a circuit board (2) is arranged on one side of the inner top end of the chassis (1) and is used for circuit communication of the electromagnetic valve (6); the utility model discloses a three-way valve, including quick-witted case (1), constant current air pump (10), circuit board (2), pressure sensor, tee bend (4) are provided with power cord (7) in the outside of machine case (1) lower extreme, power cord (7) are connected with solenoid valve (6), constant current air pump (10) and circuit board (2) electricity, be provided with pressure sensor on circuit board (2), pressure sensor links to each other with tee bend (4).
2. Bubble level gauge capable of automatically eliminating zero drift according to claim 1, characterized in that said constant flow air pump (10) is commercially available under the model BUHLER PS2.3.
3. Bubble type level gauge capable of automatically eliminating zero drift according to claim 1, characterized in that the switch (5) is used for the on-off control of a constant flow air pump (10).
4. The bubble type liquid level gauge capable of automatically eliminating zero drift according to claim 1, wherein a relay (12) is further installed on the switch (5), and the relay (12) is used for controlling the output power of the constant-current air pump (10).
5. The bubble type liquid level meter capable of automatically eliminating zero drift according to claim 1, wherein clamping grooves (11) are formed in the middle of the upper end and the lower end of the chassis (1) and used for penetrating and connecting and fixing internal circuits.
6. The bubble type liquid level gauge capable of automatically eliminating zero drift according to claim 1, wherein the switch (5), the vent pipe joint (8) and the inflation joint (9) extend to the lower side through the case (1), and the switch (5), the vent pipe joint (8) and the inflation joint (9) are connected with the lower end of the case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321673577.XU CN220230645U (en) | 2023-06-29 | 2023-06-29 | Bubble type liquid level meter capable of automatically eliminating zero drift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321673577.XU CN220230645U (en) | 2023-06-29 | 2023-06-29 | Bubble type liquid level meter capable of automatically eliminating zero drift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220230645U true CN220230645U (en) | 2023-12-22 |
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ID=89199261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321673577.XU Active CN220230645U (en) | 2023-06-29 | 2023-06-29 | Bubble type liquid level meter capable of automatically eliminating zero drift |
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| Country | Link |
|---|---|
| CN (1) | CN220230645U (en) |
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2023
- 2023-06-29 CN CN202321673577.XU patent/CN220230645U/en active Active
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