CN204099913U - The special buried pipeline leakage detector in a kind of outskirts of a town - Google Patents
The special buried pipeline leakage detector in a kind of outskirts of a town Download PDFInfo
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- CN204099913U CN204099913U CN201420541447.5U CN201420541447U CN204099913U CN 204099913 U CN204099913 U CN 204099913U CN 201420541447 U CN201420541447 U CN 201420541447U CN 204099913 U CN204099913 U CN 204099913U
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Abstract
The special buried pipeline leakage detector in a kind of outskirts of a town, it is characterized in that: comprise casing, be arranged at the display screen of the positive Middle face of casing, the zeroing knob on the right side of display screen, and the total switchgear on the left of display screen, be arranged at the alarm buzzer of casing upper wall; Also comprise the feeler lever structure being connected to casing, described feeler lever structure is connected to the feeler lever attachment hole of body side by pipeline, is also provided with charger attachment hole in described feeler lever attachment hole side; Described feeler lever structure comprises feeler lever, probe connector, and described probe connector is connected with probe, between described probe and probe connector, be fixedly connected with filter; Described box house comprises control unit region, and described control unit region is connected to an electromagnetic pump by drive circuit, and the suction port place of described electromagnetic pump is provided with a reaction chamber, and described reaction chamber internal fixtion is provided with gas sensing resistance sensor; The utility model possesses characteristic highly sensitive, that good reliability, fast response time, stability are high, simple to operate.
Description
Technical field
The utility model relates to the special buried pipeline leakage detector in a kind of outskirts of a town, particularly relates to the special buried pipeline leakage detector in a kind of highly sensitive, that good reliability, fast response time, stability are high, simple to operate outskirts of a town.
Background technique
Along with construction and the completion of China's various places gas pipeline; pull open the new page of China's city gas pipeline development; the energy resource structure of each main cities there occurs fundamental shifts; subject matter for China's Urban Buried Gas Pipeline faces: as different in buried pipeline ubiquity weld defects, anti-corrosion method; if any pipeline have employed external anti-corrosion layer add electrical method protection; and the only employing external anti-corrosion layer isolation had, also there is great difference in the type of anticorrosive coat in addition.
Because China's pipe-line construction initial management level is poor, and along with the replacing of pipeline and the development of urban construction, pipeline also exist move towards unclear, problem that data is incomplete; Simultaneously, city vehicle and electric power, wireless parallel pipeline, as the interference that cable channel, heat distribution pipeline, water supply pipe walk abreast, the burn into leakage accident on pipeline is caused to happen occasionally, in order to be suitable for the buried pipeline in inspection city and chemical industry plant area, the inspection or testing equipment of invention convenient and efficient is imperative.
Also some gas leakage detectors have been there are in market for this reason, a kind of gas leakage detector disclosed in publication number CN202814657, comprise housing, feeler lever, pop one's head in and be arranged on the control circuit board in housing, adopt the mode that feeler lever is fixedly connected with housing, and gas sensing resistance sensor is installed in probe; The shortcoming of this structure is: feeler lever is fixedly connected with housing, is not easy to operation, needs hand-held housing ceaselessly to move, effort, in addition, is installed in probe by gas sensing resistance sensor, in leak detection process, unavoidable generation is popped one's head in and collision on the ground phenomenon, easily makes gas sensing resistance sensor failure.
Model utility content
The technical problems to be solved in the utility model is to provide the special buried pipeline leakage detector in a kind of highly sensitive, that good reliability, fast response time, stability are high, simple to operate outskirts of a town.
For solving above technical problem, the technical solution of the utility model is: the special buried pipeline leakage detector in a kind of outskirts of a town, its innovative point is: comprise casing, be arranged at the display screen of the positive Middle face of casing, zeroing knob on the right side of display screen, and the total switchgear on the left of display screen, be arranged at the alarm buzzer of casing upper wall;
Also comprise the feeler lever structure being connected to casing, described feeler lever structure is connected to the feeler lever attachment hole of body side by pipeline, is also provided with charger attachment hole in described feeler lever attachment hole side;
Described feeler lever structure comprises feeler lever, and the other end being connected with pipe side at feeler lever is equipped with probe connector, and described probe connector is connected with probe, between described probe and probe connector, be fixedly connected with filter;
Described box house comprises control unit region, and control unit region of telling is connected to an electromagnetic pump by drive circuit, and the suction port place of described electromagnetic pump is provided with a reaction chamber, and described reaction chamber internal fixtion is provided with gas sensing resistance sensor.
On this basis, described probe is pin probes.
On this basis, described probe is clock-type probe.
On this basis, described wall box offers heat dissipation grid.
On this basis, described casing both sides are fixedly connected with and are linked with.
On this basis, the travelling speed of described probe is 0.15m/s.
The beneficial effects of the utility model are: when the special buried pipeline leakage detector in use the utility model outskirts of a town, the utility model is detecting that gas pipeline generation corrosivity in underground is bored a hole, when fracture produces the micro-leakage of gas, slowly spread at places such as ground ditch wells, leak detector is by the air containing inflammable gas, when delivering to gas sensing resistance sensor by electromagnetic pump, the resistance of Detecting element can change rapidly with gas concentration, highly sensitive, fast response time, and the size of change in resistance is directly proportional with gas concentration, output voltage signal simultaneously, amplify through circuit, display section is delivered to after single-chip microcomputer process, and the alarm signal produced with change in concentration, in addition, the utility model probe is divided into pin probes and clock-type probe, generally, employing clock-type is popped one's head in, and is convenient to electromagnetic pump and bleeds process, when detection narrow zone, such as pop one's head in the finedraw that cannot touch in some clock-types, then can select pin probes flexibly, detector stable operation is guaranteed in setting up of grid, prevents overheated damage, the travelling speed of probe elects 0.15m/s as, and this speed ensure that the accuracy of gas sensing resistance sensor image data, setting up of being linked with also facilitates casing to be hung on neck and operates.
Accompanying drawing explanation
Fig. 1 is the utility model outskirts of a town special buried pipeline leakage detector internal operation schematic diagrams.
Fig. 2 is the utility model outskirts of a town special buried pipeline leakage detector structural representations.
Fig. 3 is the utility model outskirts of a town special buried pipeline leakage detector internal structure schematic diagram.
Embodiment
As Fig. 1---shown in Fig. 3, the special buried pipeline leakage detector in the utility model outskirts of a town comprises: casing 1, is arranged at the display screen 2 of the positive Middle face of casing 1, the zeroing knob 3 on the right side of display screen 2, and the total switchgear 4 on the left of display screen 2, be arranged at the alarm buzzer 5 of casing 1 upper wall;
Also comprise the feeler lever structure being connected to casing 1, this feeler lever structure is connected to the feeler lever attachment hole 7 of casing 1 side by pipeline 6, is also provided with charger attachment hole 8 at the sidewall at feeler lever attachment hole 7 place; Rubber hose road 6 is adopted to connect operation of being more convenient for, flexible operation;
Feeler lever structure comprises feeler lever 9, and the other end being connected with pipeline 6 side at feeler lever 9 is equipped with probe connector 10, this probe connector 10 is connected with probe 11, is fixedly connected with filter 12 between probe 11 and probe connector 10; The setting of filter 12 prevents granule dust over time from accumulating, and blocking feeler lever structure, ensures that it is reliable;
Casing 1 inside comprises control unit region 13, and control unit region 13 is connected to an electromagnetic pump 14 by drive circuit, and the suction port place of electromagnetic pump 14 is provided with a reaction chamber 15, and this reaction chamber 15 internal fixtion is provided with gas sensing resistance sensor 16; Gas sensing resistance sensor 16 and probe are installed separately, are conducive to the working life extending gas sensing resistance sensor 16;
In the utility model, probe 11 is divided into pin probes 11a and clock-type probe 11b; Generally, adopt clock-type probe 11b, be convenient to electromagnetic pump 14 and bleed process, when detecting narrow zone, such as popping one's head in finedraw that 11b cannot touch in some clock-types, then can select pin probes 11a flexibly;
The sidewall of casing 1 offers heat dissipation grid 17; The benefit of this structure is: guarantee that instrument is reliable, the not overheated damage of reason;
The both sides of casing 1 are fixedly connected with and are linked with 18; When being convenient to operation in the wild, casing 1 being hung on neck and operating;
In addition, the travelling speed of probe 11 is 0.15m/s, and this speed ensure that the accuracy of gas sensing resistance sensor 16 image data.
Operation instruction: when the special buried pipeline leakage detector in use the utility model outskirts of a town, the utility model, when the perforation of underground gas pipeline generation corrosivity being detected, rupturing the micro-leakage producing gas, slowly spreads at places such as ground ditch wells; Leak detector is by the air containing inflammable gas, when delivering to gas sensing resistance sensor 16 by electromagnetic pump 14, the resistance of Detecting element can change rapidly with gas concentration, highly sensitive, fast response time, and the size of change in resistance is directly proportional with gas concentration, output voltage signal simultaneously, amplify through circuit, after single-chip microcomputer process, deliver to display screen 2, and produce the alarm signal with change in concentration; In addition, the utility model probe is divided into pin probes 11a and clock-type probe 11b, generally, adopt clock-type probe 11b, be convenient to electromagnetic pump 14 to bleed process, when detecting narrow zone, such as in the finedraw that some clock-types probe 11b cannot touch, then pin probes 11a can be selected flexibly; Detector stable operation is guaranteed in setting up of heat dissipation grid 17, prevents overheated damage; The travelling speed of probe 11 elects 0.15m/s as, and this speed ensure that the accuracy of gas sensing resistance sensor 16 image data; Using method of the present utility model is: step is for opening switch, and---preheating---zeroing---starts leak detection; First press host power switch, with the very brief buzzing prompting of a sound, liquid crystal screen display countdown, prompting instrument operates in preheat mode; After preheating in 10 seconds, the machine sends buzzing, enters working state; Then, the machine is placed in clean air, regulates zeroing knob, within making liquid crystal display panel numerical value be presented at (0-20) ppm, complete zeroing; Next step starts leak detection.
Claims (5)
1. the special buried pipeline leakage detector in outskirts of a town, is characterized in that: comprise casing, is arranged at the display screen of the positive Middle face of casing, and the zeroing knob on the right side of display screen, and the total switchgear on the left of display screen, be arranged at the alarm buzzer of casing upper wall;
Also comprise the feeler lever structure being connected to casing, described feeler lever structure is connected to the feeler lever attachment hole of body side by pipeline, is also provided with charger attachment hole in described feeler lever attachment hole side;
Described feeler lever structure comprises feeler lever, and the other end being connected with pipe side at feeler lever is equipped with probe connector, and described probe connector is connected with probe, between described probe and probe connector, be fixedly connected with filter;
Described box house comprises control unit region, and described control unit region is connected to an electromagnetic pump by drive circuit, and the suction port place of described electromagnetic pump is provided with a reaction chamber, and described reaction chamber internal fixtion is provided with gas sensing resistance sensor.
2. the special buried pipeline leakage detector in outskirts of a town according to claim 1, is characterized in that: described probe is pin probes.
3. the special buried pipeline leakage detector in outskirts of a town according to claim 1, is characterized in that: described probe is clock-type probe.
4. the special buried pipeline leakage detector in outskirts of a town according to claim 1, is characterized in that: described wall box offers heat dissipation grid.
5. the special buried pipeline leakage detector in outskirts of a town according to claim 1, is characterized in that: described casing both sides are fixedly connected with and are linked with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541447.5U CN204099913U (en) | 2014-09-03 | 2014-09-03 | The special buried pipeline leakage detector in a kind of outskirts of a town |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541447.5U CN204099913U (en) | 2014-09-03 | 2014-09-03 | The special buried pipeline leakage detector in a kind of outskirts of a town |
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| Publication Number | Publication Date |
|---|---|
| CN204099913U true CN204099913U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420541447.5U Active CN204099913U (en) | 2014-09-03 | 2014-09-03 | The special buried pipeline leakage detector in a kind of outskirts of a town |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189975A (en) * | 2020-01-08 | 2020-05-22 | 北京航天试验技术研究所 | Gas leakage positioning device and positioning method |
-
2014
- 2014-09-03 CN CN201420541447.5U patent/CN204099913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189975A (en) * | 2020-01-08 | 2020-05-22 | 北京航天试验技术研究所 | Gas leakage positioning device and positioning method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |