CN210198461U - Special hot type flowmeter of water conservancy - Google Patents
Special hot type flowmeter of water conservancy Download PDFInfo
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- CN210198461U CN210198461U CN201920830358.5U CN201920830358U CN210198461U CN 210198461 U CN210198461 U CN 210198461U CN 201920830358 U CN201920830358 U CN 201920830358U CN 210198461 U CN210198461 U CN 210198461U
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Abstract
The utility model discloses a special thermal flowmeter for water conservancy, which comprises a digital-to-analog conversion module, a data processing module, a communication module, a power supply module and a sensor assembly; the sensor assembly comprises a plurality of temperature sensors, and the temperature sensors acquire temperature information and transmit the temperature information to the digital-to-analog conversion module; the digital-to-analog conversion module performs digital-to-analog conversion on the temperature information and then transmits the converted temperature information to the data processing module; the data processing module processes the temperature information and transmits the temperature information to the external equipment through the communication module. The utility model adopts the plug-in design, the price is low, the construction is convenient, the data is uploaded to the cloud end or the special server in real time, and the utility model is particularly suitable for the measurement of the water intake and drainage flow rate of the non-centralized arrangement of water conservancy and farmland irrigation and the like; the method has the advantages of wide application range, measurement of pipelines, river channels, channels and the like, online calibration, high precision and high stability.
Description
Technical Field
The utility model relates to a irrigation check out test set technical field, concretely relates to special hot type flowmeter of water conservancy.
Background
At present, the total amount control and quota management of farmland irrigation water are combined, and the water price should be reasonably determined, and the charging is paid for use and measurement. The traditional water conservancy flowmeter does not need to be full of pipes, needs higher straight pipe sections, does not need a large amount of civil engineering, a large amount of supporting facilities, and has long construction period and high construction cost, so that the arrangement of the hot type flow detection device with strong adaptability is very important for researching the hot type flow detection device.
Disclosure of Invention
An object of the utility model is to provide a special hot type flowmeter of water conservancy to solve current technical problem.
The technical scheme of the utility model: the utility model provides a special hot type flowmeter of water conservancy which characterized in that: the device comprises a digital-to-analog conversion module, a data processing module, a communication module, a power supply module and a sensor assembly; the sensor assembly comprises a plurality of temperature sensors, and the temperature sensors acquire temperature information and transmit the temperature information to the digital-to-analog conversion module; the digital-to-analog conversion module performs digital-to-analog conversion on the temperature information and then transmits the converted temperature information to the data processing module; the data processing module processes the temperature information and transmits the temperature information to the external equipment through the communication module.
Preferably, the temperature sensor consists of a probe and a plurality of probes, and the probe is respectively connected with the probes; the probe is internally provided with a heating resistance wire and a thermosensitive resistance wire.
Further, the heating resistance wires and the thermosensitive resistance wires are alternately wound and connected; the outer protective layer of the probe is made of high-heat-conduction materials, and the gap is filled with the high-heat-conduction materials.
Furthermore, the temperature sensor consists of a probe, a probe I, a probe II and a probe III; the lengths of the first probe, the second probe and the third probe are sequentially increased, the length of the first probe is 30-60% of that of the second probe, and the length of the second probe is 30-60% of that of the third probe.
Preferably, the communication module adopts an RJ45 communication component or an RS-485 communication component.
Preferably, the external device is an external cloud or a dedicated server.
Has the advantages that: the utility model adopts the plug-in design, the price is low, the construction is convenient, the data is uploaded to the cloud end or the special server in real time, and the utility model is particularly suitable for the measurement of the water intake and drainage flow rate of the non-centralized arrangement of water conservancy and farmland irrigation and the like; the instantaneous and accumulated flow of liquid in a full pipe or a non-full pipe can be measured, the application range is wide, and the measurement can be carried out on pipelines, river channels, channels and the like; the plurality of temperature sensors can synchronously test the flow velocity of a plurality of parts, provide preset curve fitting and accurately test the average flow velocity; the mutual detection and reference are realized, the online calibration is realized, the precision is high, and the stability is high.
Description of the drawings
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the connection between the built-in heating resistance wire and the thermistor wire of the probe of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a thermal flowmeter dedicated for water conservancy comprises a digital-to-analog conversion module 1, a data processing module 2, a communication module 3, a power module 4 and a sensor assembly 5; the sensor assembly 5 comprises a plurality of temperature sensors 51, and the temperature sensors 51 collect temperature information and transmit the temperature information to the digital-to-analog conversion module 1; the digital-to-analog conversion module 1 performs digital-to-analog conversion on the temperature information and then transmits the converted temperature information to the data processing module 2; the data processing module 2 processes the temperature information and transmits the temperature information to the external device through the communication module 3.
The temperature sensor 51 consists of a probe 511 and a plurality of probes, and the probe 511 is respectively connected with the plurality of probes; the probe is internally provided with a heating resistance wire 512 and a thermosensitive resistance wire 513.
The heating resistance wire 512 and the thermosensitive resistance wire 513 are alternately wound and connected; the outer protective layer 514 of the probe 512 is made of high thermal conductivity material, and the gap is filled with high thermal conductivity material.
In this embodiment, the temperature sensor 51 is composed of a probe 511, a first probe a, a second probe b, and a third probe c; the lengths of the first probe a, the second probe b and the third probe c are sequentially increased, the length of the first probe is 30-60% of that of the second probe, and the length of the second probe is 30-60% of that of the third probe.
The multi-probe structural design provides flow velocity sensing of each local position in the measuring pipeline, and the actual flow state in the pipeline can be perfectly reproduced, so that curve fitting is performed, and more accurate flow velocity data is obtained; the utility model discloses a velocity of flow data, height data carry out real-time computation with the section basic data who presets, obtain flow data and flow cumulative data.
The utility model discloses utilize the thermal diffusion principle, when a plurality of temperature sensor were arranged in the medium, wherein some temperature sensor were heated the temperature more than the ambient temperature, and some temperature sensor are used for the induction medium temperature in addition. The flow velocity of the medium is increased, the heat quantity taken away by the medium is increased, the temperature difference between the heated temperature sensor and the unheated temperature sensor changes along with the change of the flow velocity of the medium, and the flow velocity of the fluid can be obtained according to the proportional relation between the temperature difference and the flow velocity of the medium; the sensing units are arranged at different heights, the provided heat is the same under the condition that the sensing units are heated by the currents with the same size, but the sensing units are arranged in different media, including gas phases and liquid phases, the heat taking speeds of the sensing units are different, the temperature difference is generated, and the sensing units can be used for judging which sensing units are in the gas phases and which sensing units are in the liquid phases so as to obtain liquid level data.
The utility model is based on network design, adopts a multifunctional communication module and is internally provided with an RJ45 communication component, thereby realizing the quick access of an external network; the communication module is also internally provided with an RS-485 communication component which can carry out data butt joint with other standard 485 communication equipment, instruments, control systems and the like. The temperature information is uploaded to a cloud end or a special server in real time, and the system is particularly suitable for measuring the water taking and draining flow of non-centralized arrangement of water conservancy, farmland irrigation and the like.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides a special hot type flowmeter of water conservancy which characterized in that: the device comprises a digital-to-analog conversion module, a data processing module, a communication module, a power supply module and a sensor assembly; the sensor assembly comprises a plurality of temperature sensors, and the temperature sensors acquire temperature information and transmit the temperature information to the digital-to-analog conversion module; the digital-to-analog conversion module performs digital-to-analog conversion on the temperature information and then transmits the converted temperature information to the data processing module; the data processing module processes the temperature information and transmits the temperature information to the external equipment through the communication module.
2. The special thermal flowmeter of water conservancy according to claim 1, characterized in that: the temperature sensor consists of a probe and a plurality of probes, and the probe is respectively connected with the probes; the probe is internally provided with a heating resistance wire and a thermosensitive resistance wire.
3. The special thermal flowmeter for water conservancy according to claim 2, characterized in that: the heating resistance wires and the thermosensitive resistance wires are alternately wound and connected; the outer protective layer of the probe is made of high-heat-conduction materials, and the gap is filled with the high-heat-conduction materials.
4. The special thermal flowmeter of water conservancy according to claim 1, characterized in that: the temperature sensor consists of a probe, a probe I, a probe II and a probe III; the lengths of the first probe, the second probe and the third probe are sequentially increased, the length of the first probe is 30-60% of that of the second probe, and the length of the second probe is 30-60% of that of the third probe.
5. The special thermal flowmeter of water conservancy according to claim 1, characterized in that: the communication module adopts an RJ45 communication component or an RS-485 communication component.
6. The special thermal flowmeter of water conservancy according to claim 1, characterized in that: the external equipment adopts an external cloud or a special server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830358.5U CN210198461U (en) | 2019-06-04 | 2019-06-04 | Special hot type flowmeter of water conservancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920830358.5U CN210198461U (en) | 2019-06-04 | 2019-06-04 | Special hot type flowmeter of water conservancy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210198461U true CN210198461U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920830358.5U Active CN210198461U (en) | 2019-06-04 | 2019-06-04 | Special hot type flowmeter of water conservancy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210198461U (en) |
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2019
- 2019-06-04 CN CN201920830358.5U patent/CN210198461U/en active Active
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