CN217899556U - Rainwater pipeline mixes device of meeting position search based on distributed temperature sensing - Google Patents
Rainwater pipeline mixes device of meeting position search based on distributed temperature sensing Download PDFInfo
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- CN217899556U CN217899556U CN202221191955.6U CN202221191955U CN217899556U CN 217899556 U CN217899556 U CN 217899556U CN 202221191955 U CN202221191955 U CN 202221191955U CN 217899556 U CN217899556 U CN 217899556U
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- distributed temperature
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Abstract
The utility model discloses a rainwater pipeline mixes device that connects position search based on distributed temperature-sensing, a rainwater pipeline mixes device that connects position search based on distributed temperature-sensing includes an optical fiber cable, laser instrument and calculating instrument and a plurality of calibration thermometer, optical fiber cable lays in the bottom of sewer, and one end is connected with laser instrument and computer instrument, is equipped with a plurality of sensing optoelectronic devices on the optical fiber cable, calibration thermometer sets up in the measuring section of optical fiber cable, acquires the change of measuring section temperature with the sensing optoelectronic device of optical fiber cable together; compared with the prior art, the utility model, composite structure is simple feasible, need not take out under the condition of water deposit in the trunk, still can the accurate intermittent type nature domestic sewage stream who comes from mixing the junction position of observing, and accurate and labour saving and time saving is applicable to most regional occasions as a result.
Description
Technical Field
The utility model relates to a rainwater pipeline mixes termination point location search technical field, is a device based on distributed temperature-sensing carries out rainwater pipeline mixes termination point location search particularly.
Background
In a separate system area, domestic or production sewage generated in a residential area or an industrial field is wrongly connected to a rainwater system, and obviously, the problem of bringing the sewage of the mixed points into a rainwater pipeline is very large, so that on one hand, untreated pollutants containing suspended solids, organic matters, ammonia nitrogen, phosphorus and the like directly enter a surface water system to cause the problem of water quality; on the other hand, the collection rate of the sewage plant is greatly reduced, the water quantity and concentration of the sewage plant are reduced, and the waste of resources of the sewage plant is caused.
The mixed junction points are usually high in concealment in time and space, and are difficult to observe or position visually by systematically opening the inspection well cover.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art's not enough, provide a device that rainwater pipeline mixes junction position search carries out based on distributed temperature sensing.
In order to achieve the purpose, the device for searching the mixed junction position of the rainwater pipeline based on distributed temperature sensing is designed, and is characterized by comprising an optical fiber cable, a sensor, a temperature sensor and a temperature sensor, wherein the optical fiber cable is laid at the bottom of a sewer and is provided with a plurality of sensing optoelectronic devices; the laser and the computer instrument are connected with one end of the optical fiber cable; and the calibration thermometers are arranged at the measuring section of the optical fiber cable and are used for acquiring the temperature change of the measuring section together with the sensing optoelectronic device of the optical fiber cable.
The utility model discloses still include following preferred technical scheme:
preferably, the laser and computer apparatus are stored in equipment adjacent the storm water conduit.
Compared with the prior art, the utility model, its advantage lies in:
compared with the prior art, the utility model, integrated configuration is simple feasible, and its advantage lies in: under the condition that water is not stored in the draining pipe, intermittent domestic sewage flow from the mixed junction position can still be accurately observed, the result is accurate, time and labor are saved, and the device is suitable for most of regional occasions.
Drawings
Fig. 1 is the utility model discloses a DYS pipeline application structure schematic diagram.
Fig. 2 is a schematic flow chart of the method of the present invention.
In the figure: 1. the system comprises a manhole 1, a manhole 2, a manhole 3, a manhole 4, an optical fiber cable 5, a calibration thermometer 6 and an independent instrument.
Detailed Description
The following embodiments of the present invention are provided to further explain the present invention in detail by combining the embodiments.
Referring to fig. 1, it can be seen from the above-mentioned figures that the utility model relates to a rainwater pipeline mixes search method of junction position based on DYS carries out, wherein the application of DTS technique in passenger shaft 1, passenger shaft 2 and passenger shaft 3 rainwater pipeline is gone on through optical fiber cable 4, calibration thermometer 5 and an independent instrument 6 that contains laser instrument, sensing optoelectronic device and PC together, optical fiber cable 4 is laid in passenger shaft 1, passenger shaft 2 and passenger shaft 3's rainwater pipeline bottom, and independent instrument 6 is connected to optical fiber cable 4's one end.
Referring to fig. 2, it can be seen from the above figures that, in a specific method, a sewage mixing event is firstly identified by using temperature variation because the temperature in a rainwater pipeline is related to the temperature of underground water and soil, and is different from the temperature characteristics of sewage discharge at home and industrial sites entering the rainwater pipeline because the temperature of underground water does not exceed 20 ℃ in most areas of China, and the temperature of sewage is generally high, and the intermittent characteristics of temperature variation are generally closely related to human life and production; after determining the sewage mixing event, measuring temperature by using an optical fiber Distributed Temperature Sensing (DTS) technology, analyzing a reflection signal into Raman backscattering, generating two broadband components, namely a Stokes emission and an anti-Stokes emission by the Raman scattering, wherein the frequency is higher and lower than that of a main reflection signal, and the ratio of the anti-Stokes intensity sensitive to temperature to the Stokes intensity insensitive to temperature is the basis of DTS measurement; a calibration thermometer is arranged, the optical fiber distributed temperature sensing is mainly used for sensing the change of the point location temperature along the line, the requirement on the absolute precision of the temperature is not high, and the calibration of the temperature can be realized by arranging the calibration thermometer at the specific point location of the measurement section, so that the overall cost and the maintenance cost of the equipment are greatly reduced; and finally, searching the mixed junction point in the whole time period, wherein under the normal condition, the water temperature in the rainwater pipeline is close to the temperature of underground water or soil, when the sewage disposal point is connected, the water temperature in the regional pipe section is abnormal in fluctuation, the peak value is the sewage disposal point at the temperature peak finger, the peak value always moves downstream along the considered rainwater pipeline section, and the accurate positioning can be realized through the whole time period data recorded by computer-aided analysis.
The above, only for the concrete implementation of this utility model, but the scope of protection of the utility model is not limited to this, and any person skilled in this technical field is in the technical scope of the utility model discloses, according to the technical scheme and the novel conception of the utility model in addition to equal replacement or change, all should be covered within the scope of protection of the utility model.
Claims (2)
1. Device for searching mixed junction position of rainwater pipeline based on distributed temperature sensing, which is characterized by comprising
The optical fiber cable is laid at the bottom of the sewer and is provided with a plurality of sensing optoelectronic devices;
the laser and the computer instrument are connected with one end of the optical fiber cable;
and the calibration thermometers are arranged at the measuring section of the optical fiber cable and are used for acquiring the temperature change of the measuring section together with the sensing photoelectronic device of the optical fiber cable.
2. The apparatus for searching for the mixed junction of a rainwater pipeline based on distributed temperature sensing as claimed in claim 1, wherein the laser and the computer instrument are stored in a device near the rainwater pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191955.6U CN217899556U (en) | 2022-05-18 | 2022-05-18 | Rainwater pipeline mixes device of meeting position search based on distributed temperature sensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221191955.6U CN217899556U (en) | 2022-05-18 | 2022-05-18 | Rainwater pipeline mixes device of meeting position search based on distributed temperature sensing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217899556U true CN217899556U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221191955.6U Active CN217899556U (en) | 2022-05-18 | 2022-05-18 | Rainwater pipeline mixes device of meeting position search based on distributed temperature sensing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217899556U (en) |
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2022
- 2022-05-18 CN CN202221191955.6U patent/CN217899556U/en active Active
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