CN209085868U - Civil air defense constructions and installations air-leakage detector - Google Patents
Civil air defense constructions and installations air-leakage detector Download PDFInfo
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- CN209085868U CN209085868U CN201822165856.0U CN201822165856U CN209085868U CN 209085868 U CN209085868 U CN 209085868U CN 201822165856 U CN201822165856 U CN 201822165856U CN 209085868 U CN209085868 U CN 209085868U
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- programmable logic
- logic controller
- air
- frequency conversion
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a kind of civil air defense constructions and installations air-leakage detector, wheel is arranged in the rear side of bottom of frame, fills frequency conversion high pressure blower in frame downward, the blast pipe of frequency conversion high pressure blower is equipped with orifice flowmeter, and orifice flowmeter is connect with air supply tube；Detector is housed on vehicle frame.The utility model is easy to use, favorable working performance；Also it can be not only able to satisfy detection limit journey, but also be able to satisfy detection accuracy by replacing different flow acquisition device.
Description
Technical field
The utility model relates to a kind of civil air defense constructions and installations air-leakage detectors.
Background technique
Existing civil air defense constructions and installations air-tightness detection device, structure is complicated, and inconvenient for use, working performance is undesirable, need into
One step is improved.
Summary of the invention
The purpose of this utility model is to provide a kind of easy to use, civil air defense constructions and installations air-leakage tests of favorable working performance
Instrument.
The technical solution of the utility model is:
A kind of civil air defense constructions and installations air-leakage detector, it is characterized in that: including vehicle frame, wheel is arranged in the rear side of bottom of frame,
Frame downward fills frequency conversion high pressure blower, and the blast pipe of frequency conversion high pressure blower is equipped with orifice flowmeter, orifice flowmeter and air-supply
Pipe connection；Detector is housed on vehicle frame, the detector includes programmable logic controller (PLC), and programmable logic controller (PLC) is connected to
Touch screen, programmable logic controller (PLC) are connect with atmospheric pressure transmitter, humiture transducer, the acquisition of atmospheric pressure transmitter
Device, humiture transducer acquisition device be installed near frequency conversion high pressure blower air inlet, respectively acquire current environment atmosphere
Pressure, temperature and humidity, programmable logic controller (PLC) are connect with the first, second differential pressure transmitter, and the first differential pressure transmitter and first is surveyed
Press mouth connection for acquiring the superpressure value in protection channel or protective ventilation pipeline, the second differential pressure transmitter and the second pressure tap
And/or the connection of third pressure tap connects for acquiring orifice plate differential pressure value, programmable logic controller (PLC) and gas mass flow transmitter
It connects.
The buffering adhesive foot worked as a buffer is arranged in the front side of bottom of frame.
The utility model is easy to use, favorable working performance；Also inspection can be both able to satisfy by replacing different flow acquisition device
Journey is measured, and is able to satisfy detection accuracy.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the working principle block diagram of the utility model.
Specific embodiment
Wheel 3 is arranged in the rear side of a kind of civil air defense constructions and installations air-leakage detector, including vehicle frame 1, bottom of frame, in frame downward
Frequency conversion high pressure blower 2 is filled, the blast pipe 6 of frequency conversion high pressure blower is equipped with orifice flowmeter 4, and orifice flowmeter and air supply tube 5 connect
It connects；Detector is housed on vehicle frame, the detector includes programmable logic controller (PLC) 17, and programmable logic controller (PLC) is connected to people
Machine interacts touch screen 8, and programmable logic controller (PLC) is connect with atmospheric pressure transmitter 21, humiture transducer 22, atmospheric pressure
The acquisition device of transmitter, the acquisition device of humiture transducer are installed near frequency conversion high pressure blower air inlet, are acquired respectively
Current environment atmospheric pressure, temperature and humidity, programmable logic controller (PLC) are connect with the first, second differential pressure transmitter 20,19, and first is poor
Pressure transmitter 20 is connected to the first pressure tap 14 for acquiring the superpressure value in protection channel or protective ventilation pipeline, the second differential pressure
Transmitter 19 is connected to the second pressure tap 15 and/or third pressure tap 16 for acquiring orifice plate differential pressure value, Programmable logical controller
Device is connect with gas mass flow transmitter.
The buffering adhesive foot 7 worked as a buffer is arranged in the front side of bottom of frame.
Programmable logic controller (PLC) 17 is operated by human-computer interaction touch screen 8, is adopted according to the switching of the detection target of setting
Flow collection mode makees the biggish protection works airtight passage of area and gas defence channel selecting using orifice flowmeter 4
For flow harvester, gas mass flow quantitative change can be used to the air leakage detection of shield segment ventilation shaft or single safeguard
Send device 23 as flow harvester.Presetting superpressure is issued to programmable logic controller (PLC) 17 by human-computer interaction touch screen 8
Value, programmable logic controller (PLC) 17 send frequency signal to frequency converter 18, and frequency conversion high pressure blower 2 opens after receiving frequency signal
Dynamic operating.
If flow harvester is selected as gas mass flow transmitter 23, programmable logic controller (PLC) 17 receives gas
The transmission signal and differential pressure transmitter 20 of weight flow transmitter 23 are collected by inspection equipment protection channel or protective ventilation
Superpressure value in pipeline, it is collected to 20 institute of differential pressure transmitter by inspection protection channel or anti-in programmable logic controller (PLC) 17
The superpressure value and presetting superpressure value protected in ventilation shaft carry out signal fusing, and comparison difference result is converted into frequency and is handed down to change
Frequency device 18, frequency converter 18 adjusts the revolving speed of frequency conversion high pressure blower 2 after receiving new signal, within the scope of certain time, when
It is collected to the institute of differential pressure transmitter 20 by surpassing in inspection protection channel or protective ventilation pipeline in programmable logic controller (PLC) 17
When pressure value and presetting superpressure value signal comparison difference are zero, human-computer interaction touch screen records programmable logic controller (PLC) 17 and converts
At the collected flow of gas mass flow transmitter 23 and differential pressure transmitter 20 difference institute and differential pressure value of standard unit.At this time
Tested protection channel or protective ventilation pipeline air leakage when keeping constant of flow i.e. differential pressure and presetting superpressure value.
If flow harvester is selected as orifice flowmeter 4, programmable logic controller (PLC) 17 receives and orifice flow
The 19 orifice plate two sides collected differential pressure signal of differential pressure transmitter and atmospheric pressure transmitter 21 and temperature and humidity that meter 4 is connected become
It send device the 22 collected signal value of institute, the stream for passing through orifice flowmeter 4 in real time is calculated with Bernoulli equation and continuity equation
Magnitude.Programmable logic controller (PLC) 17 can obtain the collected tested protection channel of 20 institute of differential pressure transmitter or protective ventilation simultaneously
The superpressure value signal and presetting superpressure value are carried out signal fusing by the superpressure value signal in pipeline, compare the conversion of difference result
It is handed down to frequency converter 18 at frequency, frequency converter 18 adjusts the revolving speed of frequency conversion high pressure blower 2 after receiving new signal, certain
In time range, when collected to 20 institute of differential pressure transmitter logical by inspection protection channel or protection in programmable logic controller (PLC) 17
When superpressure value and presetting superpressure value signal comparison difference in air piping are zero, human-computer interaction touch screen records programmable logic
Institute is collected respectively for the flow value collected of orifice flowmeter 4 and differential pressure transmitter 20 that controller 17 is converted into standard unit
Differential pressure value.Tested protection channel or protective ventilation pipe when flow i.e. differential pressure and presetting superpressure value at this time is kept constant
Road air leakage.
Claims (2)
1. a kind of civil air defense constructions and installations air-leakage detector, it is characterized in that: including vehicle frame, wheel is arranged in the rear side of bottom of frame, in vehicle
Frame lower part fills frequency conversion high pressure blower, and the blast pipe of frequency conversion high pressure blower is equipped with orifice flowmeter, orifice flowmeter and air supply tube
Connection；Detector is housed on vehicle frame, the detector includes programmable logic controller (PLC), and programmable logic controller (PLC) is connected to touching
Screen is touched, programmable logic controller (PLC) is connect with atmospheric pressure transmitter, humiture transducer, the acquisition dress of atmospheric pressure transmitter
Set, the acquisition device of humiture transducer is installed near frequency conversion high pressure blower air inlet, respectively acquire current environment atmospheric pressure
Power, temperature and humidity, programmable logic controller (PLC) are connect with the first, second differential pressure transmitter, and the first differential pressure transmitter and first surveys pressure
Mouthful connection for acquire the superpressure value in protection channel or protective ventilation pipeline, the second differential pressure transmitter and the second pressure tap and/
Or the connection of third pressure tap, for acquiring orifice plate differential pressure value, programmable logic controller (PLC) is connect with gas mass flow transmitter.
2. civil air defense constructions and installations air-leakage detector according to claim 1 delays it is characterized in that: the front side of bottom of frame has been arranged
The buffering adhesive foot of punching effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165856.0U CN209085868U (en) | 2018-12-24 | 2018-12-24 | Civil air defense constructions and installations air-leakage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165856.0U CN209085868U (en) | 2018-12-24 | 2018-12-24 | Civil air defense constructions and installations air-leakage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209085868U true CN209085868U (en) | 2019-07-09 |
Family
ID=67127258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822165856.0U Active CN209085868U (en) | 2018-12-24 | 2018-12-24 | Civil air defense constructions and installations air-leakage detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209085868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411682A (en) * | 2019-08-02 | 2019-11-05 | 潜山县九鼎精密机械有限公司 | A kind of civil air defense constructions and installations accessory device and its detection method |
| CN113418664A (en) * | 2021-07-23 | 2021-09-21 | 山西新华防化装备研究院有限公司 | Airtight detector |
-
2018
- 2018-12-24 CN CN201822165856.0U patent/CN209085868U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411682A (en) * | 2019-08-02 | 2019-11-05 | 潜山县九鼎精密机械有限公司 | A kind of civil air defense constructions and installations accessory device and its detection method |
| CN110411682B (en) * | 2019-08-02 | 2021-05-28 | 潜山县九鼎精密机械有限公司 | Civil air defense engineering accessory device and detection method thereof |
| CN113418664A (en) * | 2021-07-23 | 2021-09-21 | 山西新华防化装备研究院有限公司 | Airtight detector |
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