CN209085868U - Civil air defense constructions and installations air-leakage detector - Google Patents

Civil air defense constructions and installations air-leakage detector Download PDF

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Publication number
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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China
Prior art keywords
plc
programmable logic
logic controller
air
frequency conversion
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Active
Application number
CN201822165856.0U
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Chinese (zh)
Inventor
陶素华
沈兴
李江华
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Hangzhou Zhongwang Nondestructive Testing Equipment Co Ltd
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Hangzhou Zhongwang Nondestructive Testing Equipment Co Ltd
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Priority to CN201822165856.0U priority Critical patent/CN209085868U/en
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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

Civil air defense constructions and installations air-leakage detector
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.
CN201822165856.0U 2018-12-24 2018-12-24 Civil air defense constructions and installations air-leakage detector Active CN209085868U (en)

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

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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)

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CN (1) CN209085868U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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