CN2150548Y - Pocket-type device for detecting leakage point - Google Patents
Pocket-type device for detecting leakage point Download PDFInfo
- Publication number
- CN2150548Y CN2150548Y CN 93202083 CN93202083U CN2150548Y CN 2150548 Y CN2150548 Y CN 2150548Y CN 93202083 CN93202083 CN 93202083 CN 93202083 U CN93202083 U CN 93202083U CN 2150548 Y CN2150548 Y CN 2150548Y
- Authority
- CN
- China
- Prior art keywords
- leak detector
- sensor
- wiring board
- knob
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a pocket type device for detecting leakage point which belongs to the technical field of a detection instrument, mainly used for the leakage detection of the condenser of a generator. The pocket type device for detecting leakage point comprises a miniature probe head in which a small sensor is arranged, and a miniature controller which comprises an amplifier, a digital circuit, an alarm device, a timer, etc. If leak holes appear on the condenser, the negative pressure formed in a pipeline is converted to an electrical signal by the sensor; the electrical signal amplifies, outputs, and alarms.
Description
The utility model belongs to the leakage detecting instrument field.
For the generator condenser is hunted leak, existing a kind of leak detector, it forms (referring to Japan's " vacuum ": condenser is hunted leak) by several strain gauge transducers, several valves, several transmission pipelines and calibration cell, amplifier.This instrument volume is bigger, and inconvenience is carried, for this reason instrument with needed between cautious be connected with long pipeline.Because pipeline is long and the sensor cavity volume is bigger, so instrumental sensitivity is low.
The utility model purpose is to be designed to a kind of portable pocket leak detector, and improves its detection sensitivity.
This instrument is formed (Fig. 1) by miniature probe I and pocket controller II.Miniature probe comprises O-ring seal 1, brief biography sensor 2, alarm display lamp 3, zeroing (or measurement) button 4, housing 5, time display lamp 6.Pocket controller comprises casing 7, battery 8, wiring board 9, digital display plate 10, power switch 11, zeroing knob 12, warning adjusting knob 13, timing adjusting knob 14, function button 15 and earphone 16.Cable 17 links I and II.
Principle of work is as follows: miniature probe I cover is an ambient atmosphere pressure in the pipeline to tested condenser pipe usually, as pipeline small opening is arranged, and aspiration pump will be bled to pipeline by small opening, form negative pressure in the pipeline.Because brief biography sensor 3 has been communicated with pipeline at this moment, also produces corresponding negative pressure in the sensor cavity.Sensor is transformed into electric signal with negative pressure, is transferred on the wiring board 9 by cable 17.Wiring board 9 is formed (Fig. 2) by auto-zeroed amplifiers (or common operational amplifier) 18, digital circuit 19, warning device 20, timer 21.Behind the signal via line plate 9, can demonstrate corresponding pressure on the digital display plate 10 and change.Function button 15 can make instrument be in measurement state or alarm limit adjustment state.When function button places alert locations, by warning adjusting knob 13, pressure during adjustable warning.When pressure reached alarm limit, alarm display lamp 3 was shinny, and earphone 15 sends sound, and more convenient reliable for making measurement, circuit can adopt the automatic zero set (AZS) mode.A kind of structure is that circuit is in the measurement state at ordinary times, returns to zero (or measurement) button 4 down on time, automatic zero set (AZS).Button is got back to detected state after discharging, and hunts leak.A kind of mechanism is in the automatic zero set (AZS) state at ordinary times, button down on time, circuit forwards detected state to.Limited by timer 21 detection time, and fix time is regulated by timing adjusting knob 14.Detect beginning, timer clocks simultaneously, and to schedule time t, earphone 15 and time display lamp 6 send acousto-optic simultaneously and show.Alarm equipment alarm in time t illustrates that detected pieces is defective.As not reporting to the police, then be qualified.Circuit is supplied with by battery 8.
The utility model and existing instrument relatively are characterized in that this installs light small and exquisite, is easy to carry about with one.Pocket controller backs on the body, the handhold mini-size probe, and a people can independently finish the leakage work of visiting.In addition, this installs used little sensor, and volume is little, directly is contained on the probe, and sensor directly is connected with the measured point, and is middle without long pipeline, and the sensor cavity volume is also very little, so this device sensitivity is much higher.This device is battery-powered, has avoided using the inconvenience of civil power.
Description of drawings:
Brief biography sensor 2 can be all kinds of pressure transducers.The resistance pressure type sensor is used in suggestion, and its volume is little, and sensitivity is also high.
Miniature probe I sizableness is in 1 No. 5 battery electric torch.
Pocket controller II volume and pocket semiconductor are similar, and adding 1 leather sheath can carry on the arm piggyback.
Digital display plate 10 is advisable to adopt LCD panel.
When only needing qualitative detection, timer 21 also can.
18 when being common operational amplifier, and zeroing (or measurement) button 4 can omit.As not establishing timer 21, time display lamp 6 and timing adjusting knob 14 do not exist yet.
Claims (6)
1, a kind of leak detector is arranged, be made up of several strain gauge transducers, several valves, several transmission pipelines, calibration cell and amplifiers, this pocket leak detector is characterized in that it is made up of miniature probe I and pocket controller II.
According to the described pocket leak detector of claim 1, it is characterized in that 2, the miniature probe I is made up of O-ring seal 1, brief biography sensor 2, alarm display lamp 3, zeroing (or measurement) knob 4, housing 5 and time display lamp 6.
3, according to the described pocket leak detector of claim 1, it is characterized in that pocket controller II is made up of casing 7, battery 8, wiring board 9, digital display plate 10, power switch 11, zeroing knob 12, warning adjusting knob 13, timing adjusting knob 14, function button 15 and earphone 16.
According to the described pocket controller of claim 3, it is characterized in that 4, wiring board 9 is made up of auto-zeroed amplifiers (or common operational amplifier) 18, digital circuit 19, warning device 20 and timer 21.
According to the described pocket controller of claim 3, it is characterized in that 5, wiring board 9 is made up of auto-zeroed amplifiers (or common operational amplifier) 18, digital circuit 19, warning device 20.
6, according to the described little sensor of claim 2, it is characterized in that: it belongs to the resistance pressure type sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202083 CN2150548Y (en) | 1993-02-03 | 1993-02-03 | Pocket-type device for detecting leakage point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93202083 CN2150548Y (en) | 1993-02-03 | 1993-02-03 | Pocket-type device for detecting leakage point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2150548Y true CN2150548Y (en) | 1993-12-22 |
Family
ID=33786364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93202083 Expired - Fee Related CN2150548Y (en) | 1993-02-03 | 1993-02-03 | Pocket-type device for detecting leakage point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2150548Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153265A (en) * | 2016-06-20 | 2016-11-23 | 清华大学 | A kind of hand held gas leak device for fast detecting |
| CN107192867A (en) * | 2017-06-21 | 2017-09-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Electrical signal detection device, oscillography control method and device applied to mobile terminal |
-
1993
- 1993-02-03 CN CN 93202083 patent/CN2150548Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106153265A (en) * | 2016-06-20 | 2016-11-23 | 清华大学 | A kind of hand held gas leak device for fast detecting |
| CN107192867A (en) * | 2017-06-21 | 2017-09-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Electrical signal detection device, oscillography control method and device applied to mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |