CN206647760U

CN206647760U - Inspection device for ground biogas pipeline

Info

Publication number: CN206647760U
Application number: CN201720276295.4U
Authority: CN
Inventors: 李录锋
Original assignee: Jiangsu Institute of Architectural Technology
Current assignee: Jiangsu Institute of Architectural Technology; Jiangsu Jianzhu Institute
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2017-11-17
Anticipated expiration: 2027-03-21

Abstract

The utility model discloses a kind of inspection device for ground biogas pipeline, including vehicle frame, housing, switch S, loudspeaker HA, gas sensor, driving box, detect warning circuit, relay K and battery, housing is fixed on vehicle frame, switch S and loudspeaker HA is fixed on surface of shell, detect warning circuit, relay K and battery are arranged in housing, gas sensor is fixed on frame downward, the bottom of vehicle frame front end is provided with front-wheel, driving box is fixed on the bottom of vehicle frame rear end, electro-motor and gear shaft are provided with the driving box, the output end of electro-motor engages with gear shaft, the both ends of the gear shaft are equipped with driving wheel, the battery is connected by relay K normal open switch with electro-motor.Its not only compact structure, it is cheap, and using when only need for the present apparatus to be placed on one end of biogas pipeline, it can carry out inspection to the air-tightness of pipeline, be easy to people to use.

Description

Inspection device for ground biogas pipeline

Technical field

A kind of detection device of biogas pipeline air-tightness is the utility model is related to, is specifically that one kind is used for ground biogas pipeline Inspection device.

Background technology

China is used as energy-consuming big country, and the sustainable development of the utilization of new energy to national economy has important Meaning, with developing rapidly for Rural Social Economy, rural energy consumption also increasingly increases, and in this context, Methane Resources are made For the new energy of a great application prospect, it is to solve having for rural energy supply problem under energy shortage situation that it, which is developed, Imitate behave.Therefore the increasing family in rural area starts construction methane generating pit, then as fuel or is generated electricity using biogas, Being effectively utilized waste agronomic crop (such as stalk) makes it produce new effect；But methane-generating pit is typically all to build in house week The place enclosed, and can typically be laid to save the distance of pipeline using straight pipeline from methane-generating pit to house, then pass through pipe Biogas is introduced in house and used as combustion gas by road；In order to ensure security that biogas uses, it is necessary to periodically to methane conveying Pipeline is detected, and prevents it from the situation of gas leakage occurs.Typically now all it is that pipeline is detected by combustible gas detector, Not only volume is larger but also expensive for this equipment, and the pipeline additionally, due to methane conveying is all to be laid on ground or be embedded in Earth's surface, need to make testing staff's given pose detect combustible gas (as persistently bent over or squatting down) to detect whole surface duct Instrument is remained at close to the position on ground, and this also can greatly consume the muscle power of user, and less efficient.

The content of the invention

Filled in view of the above-mentioned problems of the prior art, the utility model provides a kind of inspection for ground biogas pipeline Put, its not only compact structure is cheap, and using when only need for the present apparatus to be placed on one end of biogas pipeline, it can Inspection is carried out to the air-tightness of pipeline, is easy to people to use.

To achieve these goals, the technical solution adopted in the utility model is：This kind is used for patrolling for ground biogas pipeline Checking device, including vehicle frame, housing, switch S, loudspeaker HA, gas sensor, driving box, detection warning circuit, relay K and Battery, housing are fixed on vehicle frame, and switch S and loudspeaker HA is fixed on surface of shell, detection warning circuit, relay K and Battery is arranged in housing, and gas sensor is fixed on frame downward, and the bottom of vehicle frame front end is provided with front-wheel, and driving box is fixed In the bottom of vehicle frame rear end, electro-motor and gear shaft are provided with the driving box, output end and the gear shaft of electro-motor are nibbled Close, the both ends of the gear shaft are equipped with driving wheel, and the battery is connected by relay K normal open switch with electro-motor Connect；

The detection warning circuit includes voltage-regulator diode VS, electrochemical capacitor C1, electric capacity C2~C3, resistance R1~R7, non- Door D1~D6, potentiometer RP, diode VD1~VD2, triode V and dc source GB, dc source GB positive pole pass through switch S is connected with resistance R2 one end and loudspeaker HA one end, the resistance R2 other end and resistance R1 one end, gas sensor A ends, voltage-regulator diode VS negative pole connect with electrochemical capacitor C1 positive pole, the resistance R1 other end and a ends of gas sensor Connection, the B ends of gas sensor are connected with potentiometer RP one end, potentiometer RP current potential adjustable side and electric capacity C2 one end and NOT gate D1 input connection, NOT gate D1 output end NAND gate D2 input connection, NOT gate D2 output end and resistance R3 One end connected with NOT gate D3 input, the resistance R3 other end is connected with diode VD2 negative pole, and diode VD2 is just Pole is connected with relay K magnet coil one end, the relay K magnet coil other end NAND gate D3 output end and NOT gate D4 Input connection, NOT gate D4 output end is connected with diode VD1 negative pole, diode VD1 positive pole and the one of resistance R4 End is connected with NOT gate D5 input, and the resistance R4 other end is connected with one end of resistance R5 one end and electric capacity C3, resistance R5 Other end NAND gate D5 output end connected with NOT gate D6 input, NOT gate D6 output end and the electric capacity C3 other end and Resistance R6 one end connection, the resistance R6 other end are connected with triode V base stage, triode V colelctor electrode and loudspeaker HA Other end connection, triode V emitter stage is connected with resistance R7 one end；Dc source GB negative pole is another with resistance R7's End, the b ends of the electric capacity C2 other end, the potentiometer RP other end, gas sensor, electrochemical capacitor C1 negative pole and the pole of voltage stabilizing two Pipe VS positive pole connection.

Further, the dc source GB is 12V.

Further, the model QM-N10 of the gas sensor.

Compared with prior art, the utility model is using vehicle frame, housing, switch S, loudspeaker HA, gas sensor, driving Case, detection warning circuit, relay K and battery are combined mode, when beginning to use, will first switch whole circuit after S closures Loop is formed with dc source GB, because gas sensor is when being not detected by biogas, its side a and b is in high value, and then this Shi Feimen D1 input is low level, so that NOT gate D1 exports high level, NOT gate D3 input is made after NOT gate D2 reversions It is high level to hold as low level, output end, and now diode VD2 is in the conduction state, and then obtains relay K magnet coil Electricity, its normal opened contact closure, electro-motor are connected with battery and started working, and electro-motor drives driving to rotate through gear shaft, The present apparatus is now placed on to one end of biogas pipeline, the present apparatus can slowly advance along biogas pipeline to the other end, user It need to only be followed with the normal speed of travel；Input additionally, due to NOT gate D4 is that high level now NOT gate D4 output end is Low level, now diode VD1 is in the conduction state, is made up of NOT gate D5, NOT gate D6, resistance R4, resistance R5 and electric capacity C3 Audio oscillator circuit does not work, and then loudspeaker HA will not send the sound；After gas sensor detects biogas, now air-sensitive The side a and b of sensor is in low resistance state, and then makes NOT gate D1 input be in high level, and then causes that NOT gate D3's is defeated It is in high level to enter end, and its output end is in low level, and now diode VD2 cathode voltage makes diode VD2 higher than cathode voltage Reversely cut-off, and then make relay K magnet coil dead electricity, its normal opened contact recovers off-state, and now electro-motor stops Work and braking action is risen to driving wheel, while driving wheel is finally made the present apparatus stop gradually by the frictional resistance on ground, in addition Now NOT gate D4 output end ends diode VD1 in high level, and now audio oscillator circuit is started working, and makes loudspeaker HA Send early warning sound, user is in the position for hearing early warning sound and present apparatus speed is reduced and stopped, it may be determined that gas leakage occurs for pipeline Position range, carry out follow-up treatment measures in time, prevent due to potential safety hazard caused by gas leakage.The utility model is not only tied Structure is compact, cheap, and using when only need for the present apparatus to be placed on one end of biogas pipeline, it is just persistently held against near-earth The position in face carries out inspection to the air-tightness of pipeline, is easy to people to use.

Brief description of the drawings

Fig. 1 is schematic appearance of the present utility model；

Fig. 2 is Fig. 1 right view；

Fig. 3 is the circuit diagram that alarm is detected in the utility model；

Fig. 4 is the electrical schematic diagram of electro-motor in the utility model.

In figure：1st, vehicle frame, 2, housing, 3, switch S, 4, loudspeaker HA, 5, front-wheel, 6, gas sensor, 7, driving box.

Embodiment

The utility model is described in further detail below.

As illustrated, be described using Fig. 1 left as front, the utility model include vehicle frame 1, housing 2, switch S3, Loudspeaker HA4, gas sensor 6, driving box 7, detection warning circuit, relay K and battery, housing 2 are fixed on vehicle frame 1 On, switch S3 and loudspeaker HA4 is fixed on the surface of housing 2, and detection warning circuit, relay K and battery are arranged on housing 1 Interior, gas sensor 6 is fixed on the bottom of vehicle frame 1, and the bottom of the front end of vehicle frame 1 is provided with front-wheel 5, and driving box 7 is fixed on the rear end of vehicle frame 1 Bottom, is provided with electro-motor and gear shaft in the driving box 7, the output end of electro-motor engages with gear shaft, the tooth The both ends of wheel shaft are equipped with driving wheel, and the battery is connected by relay K normal open switch with electro-motor；

The detection warning circuit includes voltage-regulator diode VS, electrochemical capacitor C1, electric capacity C2~C3, resistance R1~R7, non- Door D1~D6, potentiometer RP, diode VD1~VD2, triode V and dc source GB, dc source GB positive pole pass through switch S3 is connected with resistance R2 one end and loudspeaker HA4 one end, the resistance R2 other end and resistance R1 one end, gas sensor 6 A ends, voltage-regulator diode VS negative pole connect with electrochemical capacitor C1 positive pole, resistance the R1 other end and gas sensor 6 A ends are connected, and the B ends of gas sensor 6 are connected with potentiometer RP one end, potentiometer RP current potential adjustable side and the one of electric capacity C2 End connects with NOT gate D1 input, NOT gate D1 output end NAND gate D2 input connection, NOT gate D2 output end and electricity Resistance R3 one end is connected with NOT gate D3 input, and the resistance R3 other end is connected with diode VD2 negative pole, diode VD2 Positive pole be connected with relay K magnet coil one end, relay K magnet coil other end NAND gate D3 output end and non- Door D4 input connection, NOT gate D4 output end are connected with diode VD1 negative pole, diode VD1 positive pole and resistance R4 One end connected with NOT gate D5 input, the resistance R4 other end is connected with one end of resistance R5 one end and electric capacity C3, electricity The other end NAND gate D5 output end for hindering R5 connects with NOT gate D6 input, and NOT gate D6 output end is another with electric capacity C3's End is connected with resistance R6 one end, and the resistance R6 other end is connected with triode V base stage, and triode V colelctor electrode is with raising one's voice Device HA4 other end connection, triode V emitter stage are connected with resistance R7 one end；Dc source GB negative pole and resistance R7 The other end, the electric capacity C2 other end, the potentiometer RP other end, the b ends of gas sensor 6, electrochemical capacitor C1 negative pole and Voltage-regulator diode VS positive pole connection.

Further, the dc source GB is 12V.

Further, the model QM-N10 of the gas sensor 6.

When beginning to use, whole circuit forms loop with dc source GB after first switching S3 closures, due to gas sensing For device 6 when being not detected by biogas, its side a and b is in high value, and then now NOT gate D1 input is low level, so that NOT gate D1 exports high level, and the input that NOT gate D3 is made after NOT gate D2 reversions is low level, output end is high level, and now two Pole pipe VD2 is in the conduction state, and then relay K magnet coil is obtained electric, its normal opened contact closure, electro-motor and electric power storage Pond, which is connected, starts working, and electro-motor drives driving to rotate through gear shaft, and the present apparatus is now placed on to one end of biogas pipeline, The present apparatus can slowly be advanced along biogas pipeline to the other end, and user need to only be followed with the normal speed of travel；In addition by It is low level in the output end that NOT gate D4 input is high level now NOT gate D4, now diode VD1 is in the conduction state, Do not worked by NOT gate D5, NOT gate D6, resistance R4, resistance R5 and electric capacity the C3 audio oscillator circuit formed, and then loudspeaker HA4 is not The sound can be sent；After gas sensor 6 detects biogas, now the side a and b of gas sensor 6 is in low resistance state, is entered And make NOT gate D1 input be in high level, and then cause NOT gate D3 input to be in high level, its output end is in low level, this When diode VD2 cathode voltage diode VD2 is reversely ended higher than cathode voltage, and then make relay K magnet coil Dead electricity, its normal opened contact recover off-state, and now electro-motor is stopped and plays braking action to driving wheel, drives simultaneously Wheel is finally made the present apparatus stop gradually by the frictional resistance on ground, and now NOT gate D4 output end makes diode in high level in addition VD1 ends, and now audio oscillator circuit is started working, and loudspeaker HA4 is sent early warning sound, and user is hearing early warning sound and this The position that device speed is reduced and stopped, it may be determined that the position range of gas leakage occurs for pipeline, carries out follow-up treatment measures in time, Prevent due to potential safety hazard caused by gas leakage.

Claims

A kind of 1. inspection device for ground biogas pipeline, it is characterised in that including vehicle frame (1), housing (2), switch S (3), Loudspeaker HA (4), gas sensor (6), driving box (7), detection warning circuit, relay K and battery, housing (2) are fixed On vehicle frame (1), switch S (3) and loudspeaker HA (4) are fixed on housing (2) surface, detection warning circuit, relay K and electric power storage Pond is arranged in housing (1), and gas sensor (6) is fixed on vehicle frame (1) bottom, and the bottom of vehicle frame (1) front end is provided with front-wheel (5), driving box (7) is fixed on the bottom of vehicle frame (1) rear end, and electro-motor and gear shaft are provided with the driving box (7), electronic The output end of motor engages with gear shaft, and the both ends of the gear shaft are equipped with driving wheel, and the battery passes through relay K's Normal open switch is connected with electro-motor；

The detection warning circuit includes voltage-regulator diode VS, electrochemical capacitor C1, electric capacity C2~C3, resistance R1~R7, NOT gate D1 ~D6, potentiometer RP, diode VD1~VD2, triode V and dc source GB, dc source GB positive pole is by switching S (3) It is connected with resistance R2 one end and loudspeaker HA (4) one end, the resistance R2 other end and resistance R1 one end, gas sensor (6) A ends, voltage-regulator diode VS negative pole connect with electrochemical capacitor C1 positive pole, resistance the R1 other end and gas sensor (6) a ends connection, the B ends of gas sensor (6) are connected with potentiometer RP one end, potentiometer RP current potential adjustable side and electricity The one end for holding C2 connects with NOT gate D1 input, and NOT gate D1 output end NAND gate D2 input connection, NOT gate D2's is defeated Going out end to be connected with resistance R3 one end and NOT gate D3 input, the resistance R3 other end is connected with diode VD2 negative pole, and two Pole pipe VD2 positive pole is connected with relay K magnet coil one end, and relay K magnet coil other end NAND gate D3's is defeated Go out end to connect with NOT gate D4 input, NOT gate D4 output end is connected with diode VD1 negative pole, diode VD1 positive pole It is connected with resistance R4 one end and NOT gate D5 input, the resistance R4 other end and resistance R5 one end and electric capacity C3 one end Connection, resistance R5 other end NAND gate D5 output end connect with NOT gate D6 input, NOT gate D6 output end and electric capacity The C3 other end is connected with resistance R6 one end, and the resistance R6 other end is connected with triode V base stage, triode V current collection Pole is connected with the other end of loudspeaker HA (4), and triode V emitter stage is connected with resistance R7 one end；Dc source GB's is negative Pole and the resistance R7 other end, the electric capacity C2 other end, the potentiometer RP other end, the b ends of gas sensor (6), electrolysis electricity The negative pole for holding C1 connects with voltage-regulator diode VS positive pole.
2. the inspection device according to claim 1 for ground biogas pipeline, it is characterised in that the dc source GB For 12V.
3. the inspection device according to claim 1 for ground biogas pipeline, it is characterised in that the gas sensor (6) model QM-N10.