CN203422115U - Differential pressure type high-sensitivity liquid level flow measuring device - Google Patents
Differential pressure type high-sensitivity liquid level flow measuring device Download PDFInfo
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- CN203422115U CN203422115U CN201320525151.XU CN201320525151U CN203422115U CN 203422115 U CN203422115 U CN 203422115U CN 201320525151 U CN201320525151 U CN 201320525151U CN 203422115 U CN203422115 U CN 203422115U
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Abstract
The utility model belongs to the technical field of liquid level flow online monitoring equipment, particularly relates to a differential pressure type high-sensitivity level flow measuring device, and solves a problem that an existing mechanical liquid level flow measuring instrument does not adapt to a special environment where the field monitoring equipment is located and cannot operate for a long time. The differential pressure type high-sensitivity liquid level flow measuring device comprises a pressure probe immersed below the liquid level, and further comprises a reference pressure compensation module, a flow rate conversion module and a signal amplifying and processing module which are away from the liquid level, wherein the pressure probe is internally provided with a full pressure measuring module and a static pressure measuring module; and the static pressure measuring module is connected with the signal amplifying and processing module through the reference pressure compensation module, and the reference pressure compensation module is provided with an air guide device which transfers atmospheric pressure to the static pressure measuring module. The differential pressure type high-sensitivity liquid level flow measuring device realizes full-automatic real-time monitoring, liberates people from heavy regular monitoring, and eliminates hidden dangers in advance by warning information.
Description
Technical field
The utility model belongs to liquid level online discharge monitoring equipment technical field, specifically a kind of differential pressure type high sensitivity liquid level flow measurement device.
Background technology
On-line monitoring technique is, under the condition in operation the situation of equipment to be carried out continuously or monitoring regularly at equipment under test.Due to the residing particular surroundings of field monitoring equipment, can not use mechanical type Flow speed measurer.This just requires product not only can adapt to rugged surroundings, and can meet normal service requirement of long period.In the supervisory system of the network of rivers; for reaching the best water source head data of collecting and process; protection water body resource, risk prevention and the contingency management of integrated optimization municipal drainage resource distribution, major accident provide technical support, design on-mechanical formula Flow speed measurer very necessary.
Summary of the invention
The problem that the utility model is not suitable with the residing particular surroundings of field monitoring equipment and can not works the long period in order to solve existing machinery formula liquid level Flow speed measurer, provides a kind of differential pressure type high sensitivity liquid level flow measurement device especially.
The utility model is taked following technical scheme:
Differential pressure type high sensitivity liquid level flow measurement device, comprise the pressure probe immersing under liquid level, also comprise away from the reference of liquid level and press compensating module, flow velocity conversion module and signal to amplify processing module, in pressure probe, be provided with total head measurement module and static pressure measurement module;
Static pressure measurement module is through being connected with reference to pressing compensating module and signal to amplify processing module, with reference to pressing on compensating module, the gas operated device that atmospheric pressure is passed to static pressure measurement module is set, static pressure measurement module, reference press compensating module and signal amplification processing module jointly to form liquid level emasuring device;
Total head measurement module and static pressure measurement module mechanical connection, total head measurement module is connected with flow velocity conversion module with static pressure measurement module output terminal, flow velocity conversion module output terminal amplifies processing module with signal and is connected, and total head measurement module, static pressure measurement module, flow velocity conversion module, signal amplify processing module and jointly form flow measurement device.
With reference to pressing compensating module to be connected with static pressure module by air guide cable, with reference to pressing on compensating module, have the air cavity being communicated with atmosphere, air guide cable comprises boundling signal wire, power lead together and transmits atmospheric wireway, wireway one end connects air cavity, and the other end is communicated with static pressure measurement module.
The utility model also comprises power management module and electric battery, by power management module and electric battery, to whole device, is powered.Electric battery adopts the battery of low self-discharge rate.
The utility model static pressure measurement module, reference press compensating module, signal to amplify processing module composition liquid level emasuring device; Static pressure measurement module, total head measurement module, signal amplify processing module, flow velocity conversion module forms flow measurement device.Total head measurement module and static pressure measurement module are carried out simultaneously, and water level fluctuation is extremely low on measuring impact, and flow and level gauging are independent of each other, and have good compatibility and adaptability.Compensating module balance is pressed in static pressure measurement module and reference, with reference to pressing in time, compensates and makes error minimum, and sensing sensitivity is high.Static pressure measurement module, reference press compensating module that high sensitivity level gauging is provided, and with reference to pressing compensating module to work under pipe network water is overflow situation, a whole set of module whole process positiver sealing, is not subject to external interference.Total head measurement module, static pressure measurement module, flow velocity conversion module, signal amplify processing module provides high sensitivity flow measurement, and its signal amplifies processing module can obtain extremely low detectability, makes to measure sensitivity higher.Power management module and electric battery are responsible for the utility model the duration of powering are to greatest extent provided, and the battery of low self-discharge rate drops to it minimum from loss, applicable to the site of deployment that civil power can not be provided, only need regularly charge the battery, and maintenance cost is very low.
The utility model carries out the detection of pipe network liquid level flow by real-time differential pressure principle, carry out again signal amplification and anti-interference data processing, also can be uploaded to by wired or wireless mode the integrated digital sensor of related management department, realize full-automatic Real-Time Monitoring, people is freed from heavy periodic monitoring, and early warning information is in advance by removing the hidden trouble.For reaching the best water source head data of collecting and process, protection water body resource, risk prevention and the contingency management of integrated optimization municipal drainage resource distribution, major accident provide technical support, are the important component parts of network of rivers supervisory system.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
In figure: 1-total head measurement module, 2-static pressure measurement module, 3-is with reference to pressing compensating module, 4-flow velocity conversion module, 5-signal amplifies processing module, 6-power management module, 7-electric battery, 8-pressure probe.
Embodiment
By reference to the accompanying drawings embodiment of the present utility model is described further.
As shown in Figure 1, differential pressure type high sensitivity liquid level flow measurement device, it is characterized in that: comprise the pressure probe 8 immersing under liquid level, also comprise away from the reference of liquid level and press compensating module 3, flow velocity conversion module 4 and signal to amplify processing module 5, in pressure probe 8, be provided with total head measurement module 1 and static pressure measurement module 2;
Static pressure measurement module 1 is through being connected with reference to pressing compensating module 3 and signal to amplify processing module 5, with reference to pressing on compensating module 3, the gas operated device that atmospheric pressure is passed to static pressure measurement module is set, static pressure measurement module 1, reference press compensating module 3 and signal to amplify the common liquid level emasuring device that forms of processing module 5;
Total head measurement module 1 and static pressure measurement module 2 mechanical connections, total head measurement module 1 amplifies processing module 5 with static pressure measurement module 2 output terminals and signal and is connected, flow velocity conversion module 4 output terminals amplify processing module 5 with signal and are connected, and total head measurement module 1, static pressure measurement module 2, flow velocity conversion module 4 and signal amplify the common flow measurement device that forms of processing module 5.
With reference to pressing compensating module 3 to be connected with static pressure measurement module 2 by air guide cable, with reference to pressing on compensating module 3, have the air cavity being communicated with atmosphere, air guide cable comprises boundling signal wire, power lead together and transmits atmospheric wireway, wireway one end connects air cavity, and the other end is communicated with the static pressure measurement module of pressure probe.With reference to pressing compensating module 3 by air guide cable, atmospheric pressure to be imported to the static pressure measurement module of pressure probe inside, with reference to pressing compensating module, measured underwater environment and atmospheric environment have been isolated, the two is directly contact not, but makes to have set up isobaric relation with atmospheric pressure in pressure probe.
Air guide cable and pressure probe and reference press the connecting interface place of measurement module all to adopt the design of two way seal axle sleeve, and stainless steel resistant material, has solved sealing problem, guarantees not to be subject to rugged surroundings to affect.
Total head measurement module and static pressure measurement module comprise respectively total head sensor and static pressure transducer, the signal of the two collection has been transferred to signal by signal cable and has amplified processing module, and signal amplifies processing module and carries out by wired or wireless mode, being uploaded to related management department after signal amplification and anti-interference data processing.The data processor of flow velocity conversion module for carrying out flow velocity conversion, flow velocity conversion method is known.
Described differential pressure type high sensitivity liquid level flow measurement device, also comprises power management module 6 and electric battery 7, by power management module 6 and electric battery 7, to whole device, is powered.Electric battery 7 adopts the battery of low self-discharge rate.
Claims (4)
1. a differential pressure type high sensitivity liquid level flow measurement device, it is characterized in that: comprise the pressure probe (8) immersing under liquid level, also comprise away from the reference of liquid level and press compensating module (3), flow velocity conversion module (4) and signal to amplify processing module (5), in pressure probe (8), be provided with total head measurement module (1) and static pressure measurement module (2);
Static pressure measurement module (1) is through being connected with reference to pressing compensating module (3) and signal to amplify processing module (5), with reference to pressing on compensating module (3), the gas operated device that atmospheric pressure is passed to static pressure measurement module is set, static pressure measurement module (1), reference press compensating module (3) and signal amplification processing module (5) jointly to form liquid level emasuring device;
Total head measurement module (1) and static pressure measurement module (2) mechanical connection, total head measurement module (1) amplifies processing module (5) with static pressure measurement module (2) output terminal and signal and is connected, signal amplifies processing module (5) and is connected with flow velocity conversion module (4) output terminal, and total head measurement module (1), static pressure measurement module (2), flow velocity conversion module (4) and signal amplify processing module (5) and jointly form flow measurement device.
2. differential pressure type high sensitivity liquid level flow measurement device according to claim 1, it is characterized in that: described reference presses compensating module (3) to be connected with static pressure measurement module (2) by air guide cable, with reference to pressing on compensating module (3), have the air cavity being communicated with atmosphere, air guide cable comprises boundling signal wire, power lead together and transmits atmospheric wireway, wireway one end connects air cavity, and the other end is communicated with the static pressure measurement module of pressure probe.
3. differential pressure type high sensitivity liquid level flow measurement device according to claim 1 and 2, is characterized in that: it also comprises power management module (6) and electric battery (7), by power management module (6) and electric battery (7), to whole device, is powered.
4. differential pressure type high sensitivity liquid level flow measurement device according to claim 3, is characterized in that: electric battery (7) adopts the battery of low self-discharge rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525151.XU CN203422115U (en) | 2013-08-27 | 2013-08-27 | Differential pressure type high-sensitivity liquid level flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525151.XU CN203422115U (en) | 2013-08-27 | 2013-08-27 | Differential pressure type high-sensitivity liquid level flow measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN203422115U true CN203422115U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320525151.XU Expired - Lifetime CN203422115U (en) | 2013-08-27 | 2013-08-27 | Differential pressure type high-sensitivity liquid level flow measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438960A (en) * | 2013-08-27 | 2013-12-11 | 中绿环保科技股份有限公司 | Differential pressure type high sensitivity liquid level flow measuring device |
-
2013
- 2013-08-27 CN CN201320525151.XU patent/CN203422115U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438960A (en) * | 2013-08-27 | 2013-12-11 | 中绿环保科技股份有限公司 | Differential pressure type high sensitivity liquid level flow measuring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |