CN202869593U - Water-level measuring device - Google Patents
Water-level measuring device Download PDFInfo
- Publication number
- CN202869593U CN202869593U CN 201220513850 CN201220513850U CN202869593U CN 202869593 U CN202869593 U CN 202869593U CN 201220513850 CN201220513850 CN 201220513850 CN 201220513850 U CN201220513850 U CN 201220513850U CN 202869593 U CN202869593 U CN 202869593U
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- Prior art keywords
- water
- water tank
- inductor
- level
- pressure
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- Expired - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model belongs to the technical field of water conservation projects and relates to a device for measuring water depth, in particular to a water-level measuring device. The water-level measuring device comprises an inductor arranged outside a water tank, wherein the inductor is connected with a water-level display outside the water tank by a data line, the inductor is a pressure transmitter which is arranged at the bottom portion of the water tank by a thread or a clamping hoop, and the data line of the inductor passes through a through hole to be connected with the water level display. By arranging the pressure transmitter at the bottom portion of the water tank, bottom pressure is converted to water level height, precision is high, usage is convenient and service life of equipment is long.
Description
Technical field
The utility model belongs to the hydraulic engineering technical field, relates to a kind of device that sounds the depth of the water, specifically a kind of level measurement device.
Background technology
Along with various development of producing industry, a lot of equipment all is furnished with water tank, at this moment just need to accurately measure water level.Traditional measurement water level device needs configuration personnel special monitoring water level, and device can not make continuous record, does not know water level certain period in the past, how to change; At certain time point, how much numerical value is again.The system of the more important thing is can not accurately control water level, there is not corresponding warning device, can not give any information of user, even reached peak level, the user can not in time understand, and therefore causes water to overflow, waste water resource, serious damage equipment, the generation that causes the accident.In addition thereby normally used water level detecting also has buoyancy that relay switch formula 1. levers utilize liquid to rise to setting height by the lever drive water level contact to be switched reach purpose the method for control water level simple, economical.2. electric pole type utilizes the electric conductivity of water that upper limit is set, the lower limit electrode causes the actuating of relay when the upper and lower electrode conduction of water level submergence upper limit electrode.But this method is used long-time rear impact owing to incrustation scale or other foreign material, and the measuring accuracy of water level is relatively poor, and the service life of equipment weak point etc.
Summary of the invention
The purpose of this utility model is exactly the problem that exists for solving prior art, and has designed a kind of level measurement device, has not only improved measuring accuracy, and can carry out in real time data acquisition.
The technical solution of the utility model is: a kind of level measurement device, include and be arranged on the outer inductor of water tank, inductor is connected by the water level display of data line with the water tank outside, and described inductor is pressure unit, and pressure unit is installed in the bottom of water tank by screw thread or clip; The data line of inductor passes through hole and is connected with the water level display of water tank outside.
Described pressure unit consists predominantly of the pressure sensitive module, and the pressure sensitive module is connected with the PLC integration module, is provided with signal switching processor in the PLC module, and processor is electrically connected with display and alarm.
The beneficial effects of the utility model can draw by such scheme, because this programme is arranged on the bottom of water tank by pressure unit, convert the pressure of bottom the height of water level to, and precision is high, and equipment life easy to use is long.The principle of using is: the pressure P of a certain depth point is directly proportional with this height h to liquid level, is directly proportional with the density p of liquid, and take gravity acceleration g as scale-up factor, i.e. P=ρ gh.When density p and gravity acceleration g were definite value, the degree of depth h of water level just can directly measure pressure p, converts two-wire system 4～20 mA standard signals that are directly proportional with the pressure liquid level to by transmitter circuitry processes again, thereby realized the accurate measurement to liquid level.The utility model directly is presented at data on the display by pressure unit, can detect for real-time, and be attached with alarm, and the water-level alarm zone can be set.The utility model is easy to use, and the little life-span of volume is long, compared with prior art, has certain progressive and practicality, and very large popularizing value is arranged.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams;
Fig. 2 is electrical block diagram among the utility model embodiment;
Wherein, 1, water tank, 2, pressure unit, 3, display, 4, alarm.
Embodiment
In order to understand better the utility model, explain in detail embodiment of the present utility model below in conjunction with accompanying drawing.
Embodiment: as illustrated in fig. 1 and 2, a kind of level measurement device includes the pressure unit 2 that is arranged on outside the water tank 1, and pressure unit 2 is installed in the bottom of water tank 1 by screw thread; The data line of described pressure unit 2 passes through hole and is connected with the water level display 3 of water tank outside.Be provided with plc module and signal processor in the described display 3, signal processor is electrically connected with alarm 4.
Its principle is:
The mechanical signal of this pressure of hydraulic pressure is transformed into the electronic signal of electric current (4-20mA); The linear proportional relation of pressure and voltage or size of current so voltage or the electric current of transmitter output increase with pressure, draws the relational expression of a pressure and voltage or electric current thus.Through signal processor the signal that obtains is converted according to formula (being P=ρ gh) again, draw depth of water h value, and demonstrate at display.
Above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (2)
1. level measurement device, include and be arranged on the outer inductor of water tank, inductor is connected by the water level display of data line with the water tank outside, it is characterized in that: described inductor is pressure unit, and pressure unit is installed in the bottom of water tank by screw thread or clip; The data line of inductor passes through hole and is connected with the water level display of water tank outside.
2. level measurement device as claimed in claim 1, it is characterized in that: described pressure unit consists predominantly of the pressure sensitive module, the pressure sensitive module is connected with the PLC integration module, is provided with signal switching processor in the PLC module, and processor is electrically connected with display and alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513850 CN202869593U (en) | 2012-10-09 | 2012-10-09 | Water-level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513850 CN202869593U (en) | 2012-10-09 | 2012-10-09 | Water-level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869593U true CN202869593U (en) | 2013-04-10 |
Family
ID=48036305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513850 Expired - Fee Related CN202869593U (en) | 2012-10-09 | 2012-10-09 | Water-level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869593U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655234A (en) * | 2013-11-25 | 2015-05-27 | 珠海格力电器股份有限公司 | Water heater water level detection processing method and device and water heater |
| CN105242063A (en) * | 2015-09-09 | 2016-01-13 | 西安邮电大学 | Reservoir flow velocity measurement method based on pressure sensor |
| CN105486373A (en) * | 2016-01-19 | 2016-04-13 | 黄亮 | Liquid storage tank and liquid weight measuring method |
| CN112362849A (en) * | 2020-11-11 | 2021-02-12 | 华北水利水电大学 | Device and method for measuring water inrush and sand inrush separate phase content in water inrush and sand inrush experiment |
-
2012
- 2012-10-09 CN CN 201220513850 patent/CN202869593U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655234A (en) * | 2013-11-25 | 2015-05-27 | 珠海格力电器股份有限公司 | Water heater water level detection processing method and device and water heater |
| CN105242063A (en) * | 2015-09-09 | 2016-01-13 | 西安邮电大学 | Reservoir flow velocity measurement method based on pressure sensor |
| CN105242063B (en) * | 2015-09-09 | 2018-08-03 | 西安邮电大学 | A kind of tank flow-speed measurement method based on pressure sensor |
| CN105486373A (en) * | 2016-01-19 | 2016-04-13 | 黄亮 | Liquid storage tank and liquid weight measuring method |
| CN112362849A (en) * | 2020-11-11 | 2021-02-12 | 华北水利水电大学 | Device and method for measuring water inrush and sand inrush separate phase content in water inrush and sand inrush experiment |
| CN112362849B (en) * | 2020-11-11 | 2023-10-31 | 华北水利水电大学 | Device and method for measuring phase separation content of water burst and sand burst in water burst sand burst experiment |
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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: 20130410 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |