CN209230889U - Platform with pipeline node leak detection - Google Patents
Platform with pipeline node leak detection Download PDFInfo
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- CN209230889U CN209230889U CN201822126904.5U CN201822126904U CN209230889U CN 209230889 U CN209230889 U CN 209230889U CN 201822126904 U CN201822126904 U CN 201822126904U CN 209230889 U CN209230889 U CN 209230889U
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Abstract
The utility model provides the platform with pipeline node leak detection, including the first circuit for detecting pipeline leakage rate, first circuit includes tension measuring circuit, double operational circuit and range switch circuit, the tension measuring circuit includes the first probe and the second probe not being in contact, first probe and the second probe are for detecting water body voltage, the double operational circuit includes the operational amplifier one being connected with range switch circuit output end, and the operational amplifier two being connected with the input terminal of operational amplifier, the range switch circuit includes the range resistance that several are connected side by side and resistance value is of different sizes, and for the corresponding multi-position switch for being connected to each range resistance and double operational circuit, first circuit is to water body voltage detecting and amplifies, host computer can be uploaded to and carry out calculating resistance value, and it is calculated by resistance value The flow of water flow, separates leakage class.
Description
Technical field
The utility model relates to detect pipeline leakage technology field, and in particular to flat with pipeline node leak detection
Platform.
Background technique
In existing detection technique field, let out mainly for the place of heating network, water supply network and specific monitoring point
Device for detecting leakage, the problems such as being typically due to pipeline junction aging, loosened screw, will cause leakage point, therefore in pipeline junction
To detect emphasis；
Detection method is typically now listened using sound, has airborne infrared method, flowmeter, pressure sensor, suction wave leak detecting, pressure
The measurement methods such as force gradient method.
The defect of the prior art:
1, detection method listened using sound, have airborne infrared method, flowmeter, pressure sensor to detect, be generally adapted needs and let out
More situation is leaked, the fault point small for leakage points such as water clocks, this kind of measurement method cannot detect；
2, using suction wave leak detecting and pressure gradient method, higher cost.
In the above-mentioned technical solutions, at high cost, it can not achieve effectively leak tested, it may occur that the case where accidentally surveying, simultaneously
Uninterrupted can not be also measured.
Utility model content
The utility model provides the platform with pipeline node leak detection, to solve mentioned above in the background art ask
Topic.
In order to solve the above technical problems, the utility model adopts the following technical solution:
Platform with pipeline node leak detection, including the first circuit for detecting pipeline leakage rate, described first
Circuit includes tension measuring circuit, double operational circuit and range switch circuit, in which:
The tension measuring circuit includes the first probe and the second probe not being in contact, and the first probe and the second probe are used
In detection water body voltage, the double operational circuit includes the operational amplifier one being connected with range switch circuit output end, with
And the operational amplifier two being connected with the input terminal of operational amplifier, the range switch circuit include that several are connected side by side
And the range resistance that resistance value is of different sizes, and for the corresponding multi-position switch for being connected to each range resistance and double operational circuit.
It further, further include the second circuit whether leaked for detecting pipeline, the second circuit includes that electric current is surveyed
Measure circuit and voltage measurement point, in which:
The current measurement circuit includes the third probe and the 4th probe not being in contact, and third probe and the 4th probe are used
In taking voltage measurement point on detection water body electric current, the current measurement circuit, for detecting voltage.
Further, the third probe and the 4th probe are connected with protective resistance.
From the above technical scheme, the utility model has the following beneficial effects: second circuit is to the water of pipe leakage
Voltage and current detected, for calculating conductivity, due to TDS (total saliferous between the water and condensed water of pipe leakage
Amount) it is different, and how much the salinity of water will affect the height of conductivity, effectively judge whether pipeline leaks thus according to conductivity
Water, rather than be the condensed water outside pipeline, manual operation is reduced, may be implemented uninterruptedly to monitor pipeline node, the first circuit energy
It reaches to water body voltage detecting and amplifies, enable to voltage to be generalized machine identification, be uploaded to host computer and carry out calculating resistance value, with
And the flow of water flow is calculated by resistance value, separate leakage class.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, practical new to this below
Type drawings that need to be used in the embodiment or the prior art description is briefly described, it should be apparent that, it is described below
Attached drawing is only the embodiments of the present invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, other accompanying drawings can also be obtained according to the attached drawing of offer
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the first circuit diagram of the utility model；
Fig. 3 is the utility model second circuit schematic diagram.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is further described.
Wherein TDS is dissolvability solid amount, also known as total salinity, measurement unit mg/L.When the TDS value in water body is got over
When low, conductivity is lower, otherwise conductivity is then higher.
As shown in Figure 1, the platform with pipeline node leak detection, including the first circuit for detecting pipeline leakage rate
With the second circuit whether leaked for detecting pipeline, first circuit includes tension measuring circuit, double operational circuit and amount
Journey switching circuit, the tension measuring circuit includes the first probe and the second probe not being in contact, and is connected to two spies
For detecting water body voltage, the double operational circuit includes and range for protective resistance between needle, the first probe and the second probe
The operational amplifier one that switching circuit output end is connected, and the operational amplifier being connected with the input terminal of operational amplifier
Two, and earthed circuit is respectively connected on two operational amplifiers, two operational amplifiers can amplify voltage, so that electric
Pressure energy is enough generalized machine identification, and the range switch circuit includes four range resistance arranged side by side connected and resistance value is of different sizes,
And for corresponding six bit switches for being connected to each range resistance and double operational circuit, four range resistance are respectively 20k Ω, 100k
Ω, 470k Ω and 1M Ω, can preferably distinguish the water flow resistance in different sections, and the voltage value measured is uploaded to host computer, passes through
Host computer carries out calculating resistance value, and the flow of water flow is calculated by resistance value, separates leakage class.
Second circuit includes current measurement circuit and voltage measurement point, and the current measurement circuit includes not be in contact
For detecting water body electric current, third probe and the 4th probe are connected with for three probes and the 4th probe, third probe and the 4th probe
Protective resistance takes voltage measurement point on the current measurement circuit, for detecting voltage, voltage that second circuit will test out and
Electric current is uploaded to host computer, and host computer calculates the conductivity of water body.
First circuit, second circuit are absolute construction with host computer, and the first circuit is used to detect with second circuit.
Working principle: detected liquid is weak inductive, since there are a small amount of electrolyte in tap water, so that originally
The electric conductivity of water is much larger than pure water, in addition will increase rust remover in heat supply pipeline hot water, so that the conduction of heat supply pipeline hot water
Property be better than tap water because the electrolyte contained will be more, and resistance also can be smaller when detected water body medium,
TDS value in heat supply pipeline hot water is greater than the TDS value of condensed water, and condensed water is relative to distilled water resistivity in mega-ohms, conduction
Ability is poor, when tap water or heating water's leakage, since the conductivity of the medium is larger, can be examined by circuit
It surveys, for the stage+module with pipeline node leak detection on captation, which is installed in pipeline node outer end,
When leak occurring at pipeline node, captation is collected the water outside pipeline node, is connected to third probe as conductor
With the 4th probe, third probe and the 4th probe measure the current value of the water body passed through, while on current measurement circuit
Voltage measurement point voltage is measured, electric current and voltage pass through different ports respectively (electric current pass through the port I/O2, voltage
Pass through the port I/O3) be uploaded to host computer, by host computer calculate conductivity, thus judge pipeline whether leak, Ke Yiyou
The wrong report that collects for solving the problems, such as condensed water of effect, the first probe and the second probe measure the voltage of the water body passed through, and
It is sent to range switch circuit, the range resistance that six bit switch of manual control selects resistance value of different sizes is different for obtaining
Voltage (voltage is smaller at this time), then voltage is by the input terminal of operational amplifier one, at this time with the input terminal of operational amplifier
The operational amplifier two of connection simultaneously amplifies voltage, and amplified voltage is uploaded to host computer, is carried out by host computer
Resistance value is calculated, and calculates the flow of water flow by resistance value, separates leakage class.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (3)
1. the platform with pipeline node leak detection, which is characterized in that including the first circuit for detecting pipeline leakage rate,
First circuit includes tension measuring circuit, double operational circuit and range switch circuit, in which:
The tension measuring circuit includes the first probe and the second probe not being in contact, the first probe and the second probe for examining
Water body voltage is surveyed, the double operational circuit includes the operational amplifier one being connected with range switch circuit output end, Yi Jiyu
The operational amplifier two that the input terminal of operational amplifier is connected, the range switch circuit include several connection and resistances side by side
It is worth range resistance of different sizes, and for the corresponding multi-position switch for being connected to each range resistance and double operational circuit.
2. the platform according to claim 1 with pipeline node leak detection, it is characterised in that: further include for detecting
The second circuit whether pipeline leaks, the second circuit include current measurement circuit and voltage measurement point, in which:
The current measurement circuit includes the third probe and the 4th probe not being in contact, third probe and the 4th probe for examining
Water body electric current is surveyed, voltage measurement point is taken on the current measurement circuit, for detecting voltage.
3. the platform according to claim 2 with pipeline node leak detection, it is characterised in that: the third probe and
4th probe is connected with protective resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126904.5U CN209230889U (en) | 2018-12-18 | 2018-12-18 | Platform with pipeline node leak detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822126904.5U CN209230889U (en) | 2018-12-18 | 2018-12-18 | Platform with pipeline node leak detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209230889U true CN209230889U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822126904.5U Active CN209230889U (en) | 2018-12-18 | 2018-12-18 | Platform with pipeline node leak detection |
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| Country | Link |
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| CN (1) | CN209230889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557793A (en) * | 2023-07-10 | 2023-08-08 | 中建安装集团有限公司 | System and method for monitoring running state of heat supply pipeline integrating pressure sensing and temperature sensing |
-
2018
- 2018-12-18 CN CN201822126904.5U patent/CN209230889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116557793A (en) * | 2023-07-10 | 2023-08-08 | 中建安装集团有限公司 | System and method for monitoring running state of heat supply pipeline integrating pressure sensing and temperature sensing |
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