CN2516718Y - Vehicle compression natural gas inflation and supply device - Google Patents
Vehicle compression natural gas inflation and supply device Download PDFInfo
- Publication number
- CN2516718Y CN2516718Y CN 01228835 CN01228835U CN2516718Y CN 2516718 Y CN2516718 Y CN 2516718Y CN 01228835 CN01228835 CN 01228835 CN 01228835 U CN01228835 U CN 01228835U CN 2516718 Y CN2516718 Y CN 2516718Y
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- valve
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- protection device
- safety protection
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Abstract
The utility model relates to a vehicle-mounted compressed natural gas supply unit, comprising a high pressure vessel, a protection unit for high pressure over-current, a pulse electromagnetic valve, a centralized type control plate for supplying gas and a protection unit for the gas supply safety of natural gas automobile engine. The utility model safely and reliably supplies CNG automobile engine with gas in rated gas-supplying range. If high pressure over-current is caused by some fault or CNG automobile engine stops running, gas-supply can be automatically cut without the necessity of any force; when fault is eliminated, normal gas supply is recovered. All the above processes are finished in the cab by driver, and the utility model really realizes the core demands of safety and reliability and convenient maintenance.
Description
Affiliated technical field
The utility model relates to a kind of motor car engine and fills air feeder, especially a kind of vehicle-mounted compressed natural gas inflation air feeder.
Background technique
At present domestic and international vehicle-mounted compressed natural gas inflation air supply system generally is made up of air cylinder group, delivery line and functor.The gas storage pressure of this system is about 20MPa, and the gas-storing capacity maximum can reach hundreds of standard cubic meters.But its structure is huge, complicated, does not have reliable safety protection device, exists unsafe factor in the use.Domestic do not have the safe and reliable complete vehicle-mounted compressed natural gas of a cover to inflate air supply system so far.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming that prior art exists, and provides that a nested structure is reasonable, safe and reliable, the vehicle-mounted compressed natural gas inflation air feeder of convenient maintenance.
The purpose of this utility model is achieved in that it controls plate by high-pressure bottle, high-pressure and overflowing safety protection device, impulse electromagnetic valve and centralized inflation air feed and form.Described high-pressure bottle is always exported pipe end and is connected with the high-pressure and overflowing safety protection device; Described high-pressure and overflowing safety protection device is controlled plate by centralized inflation air feed and is connected with motor air feed safety protection device; The solenoid valve of described motor air feed safety protection device is connected with motor car engine by decompressor; Described solenoid valve also is connected with the output terminal of power supply adaptor.
Described high-pressure and overflowing safety protection device is made up of impulse electromagnetic valve and overcurrent protective device.Having a hollow cylinder on the valve seat of described high-pressure and overflowing protective gear--cone shaped body and a hollow cylinder chamber have attachment hole between hollow cylinder--conical cavity and the hollow cylinder chamber.The normally closed impulse electromagnetic valve of band pilot valve is installed in the described hollow cylinder chamber.The gas outlet of pulse guide normally closed solenoid valve is the air outlet hole on the valve seat.Hollow cylinder--be fixed with valve rod by screw rod in the hole of cone shaped body bottom, with being installed on the valve rod behind the all-in-one-piece spool assembly parts cover upper valve core aperture adjustment spring that is threaded.Fixedly back-up ring also is housed on the described valve rod, and valve body is connected with valve seat by screw thread.
Described centralized inflation air feed is controlled and is fixed with a cross fitting on the plate; one end of cross fitting is connected with the high-pressure and overflowing safety protection device; the other end is equipped with a pressure display table; the 3rd end of cross fitting joins by charging air inlet valve and charging air inlet, and the 4th end of cross fitting joins with safety discharging air valve and motor air supply pipe respectively by valve and tee union.
1 pin of the IC 2 of described power supply adaptor is by resistance R 1, capacitor C 1, and 2,3,8,16 pin of the IC 2 of power supply adaptor and 1,8 pin of IC 3 are connected the automobile inverter by resistance R 1, IC 1; 1,8 pin of the IC 3 of described power supply adaptor are by resistance R 9 and resistance R 8, and 2,3,16 pin of the IC 3 of power supply adaptor and 1,8 pin of IC 2 are connected the N utmost point of automobile current generator respectively by resistance R 9, diode D3, IC 4.
The utility model is owing to adopted said structure; and through rationally arranging; the conversion of controlling plate by centralized inflation air feed has not only realized inflation and air feed conveying purpose freely; and realized to air cylinder group inflation and air cylinder group to the shared pipeline of motor air feed; guaranteed simultaneously in case meet accident; when making the high-pressure delivery flow surpass the design safety value, the high-pressure and overflowing safety protection device leans on the pneumatic attribute of himself, automatically the conveying of cutoff high gas.When motor stall occurred regardless of which kind of reason, the signal voltage that the generator N on the automobile extremely goes up just can disappear, and makes closed electromagnetic valve, thereby cut off the air feed to motor automatically, was convenient to all kinds of faults of safety inspection motor.Fault can be recovered normal operation after getting rid of immediately.Except that inflation, all operate and control by the driver and in operator cabin, finish, realized that really vehicle-mounted compressed natural gas inflation air supply system is safe and reliable, used core requirement easy to maintenance.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and example:
Fig. 1 is an overall structure schematic representation of the present utility model;
Fig. 2 is a high-pressure and overflowing safety protection device structural representation of the present utility model;
Fig. 3 is a motor air feed safety protection device circuit block diagram of the present utility model;
Fig. 4 is a motor air feed safety protection device electrical schematic diagram of the present utility model.
Embodiment
Figure mesohigh air cylinder group is as air cylinder by several high-pressure bottles (1), the argon arc welding that is connected between the air cylinder is welded, be parallel with some arms on the house steward of stainless steel integrated and pipe group (4), the head of each arm adopts the bulb nut to link to each other with high-pressure gas cylinder, realizes the storage of automobile-used high-pressure natural gas.Stainless steel integrated and pipe group (4) house steward middle part is provided with inflation air feed delivery pipe (5), and the airflow inlet of high-pressure and overflowing safety protection device (2) is managed continuous therewith.The inflation air feed delivery port that the flow outlet of high-pressure and overflowing safety protection device (2) and centralized inflation air feed are controlled on the plate (3) joins.The outlet that centralized inflation air feed is controlled plate (3) links to each other with the import of motor air feed safety protection device (19) by motor air supply pipe (11), controls at centralized inflation air feed in addition and is fixed with a cross fitting (8) on the plate (3); One end of cross fitting (8) is connected with high-pressure and overflowing safety protection device (2) with Stainless Steel Tube, and the other end is equipped with a pressure display table, and it can show the gas storage pressure of air cylinder group; The 3rd end of cross fitting (8) joins by charging air inlet valve (20) and charging air inlet (9), opens charging air inlet valve (20) and can pass through charging air inlet (9) and inflate to vehicle-mounted air cylinder group, inflates and can close charging air inlet valve (20) after finishing.Because charging air inlet (9) comes down to an one-way valve, just forms the inflation double seal to vehicle-mounted air cylinder group of charging air inlet valve (20) and charging air inlet (9) after the inflation, makes vehicle-mounted air cylinder group more safe and reliable.The 4th end of cross fitting (8) joins with safety discharging air valve (10) and motor air supply pipe (11) respectively by valve (ball valve) (21) and tee union.If opening this valve (ball valve) (21) can realize to the normal air feed of motor by tee union and motor air supply pipe (11).The other end at tee union is connected to safety discharging air valve (10), and described safety discharging air valve (10) always is in closed condition when the motor proper functioning.When motor itself needs maintenance, only need throttle down (ball valve) (21) that safety discharging air valve (10) is opened, can put only retaining residual air in the motor air supply pipe.Although be high-pressure gas still this moment in the air cylinder group, and engine system can realize not having the rock gas safety inspection.When gas-fueled vehicles require stall because of the gas pressure in the air cylinder group is lower than the motor air feed halfway, then the safety discharging air valve of gas-fueled vehicles that can another is of the same type is cascaded with the pipeline that the safety discharging air valve (10) of this car is connected, and the safety discharging air valve of opening them promptly can be this car supplemental natural gas.Like this, control the conversion of plate (3), realized that not only inflation and air feed carry purpose freely, and realized to the inflation of air cylinder group and air cylinder group to the shared pipeline of motor air feed by centralized inflation air feed.
Because the hollow cylinder of the overcurrent protective device (7) of high-pressure and overflowing safety protection device (2)--be fixed with valve rod (29) by screw rod in the hole of cone shaped body bottom, with being installed on the valve rod (29) behind all-in-one-piece spool assembly parts (22) the cover upper valve core aperture adjustment spring (27) that is threaded, thereby make the spool assembly parts (22) can be along valve rod (29) axial motion, fixedly back-up ring (28) also is housed on the valve rod (29), come the motion of control valve core assembly (22), valve body (30) is connected with valve seat (23) by screw thread; So high-pressure and overflowing safety protection device (2) comes down to connect one by overcurrent protective device (7) and a pulse guide normally closed solenoid valve (6) in parallel with it on the pressurized gas delivery line.It can rely on the air-flow path after this solenoid valve (6) recovers the overcurrent safety protection.Carry when engine high pressure gas to meet accident, the high-pressure delivery flow surpasses the design safety value, and conveying gas is during through said apparatus, along with big from little change by flow.Because aerodynamic force and spool aperture are adjusted the acting in conjunction of the spring force of spring (27); force spool assembly parts (22) to move to cutting direction along axis, when reaching the maximum constraints flow, the overcurrent protection valve cuts out gas flow rate from small to large; its speed is zero, automatically the conveying of cutoff high gas.Pulse guide normally closed solenoid valve (6) relies on the spring force of aerodynamic force and pulse guide normally closed solenoid valve under nominal situation and the acting in conjunction of sealing gasket forms a normally closed system.When high-pressure and overflowing safety protection device (2) is closed automatically because of certain fault; when needing to open after fault is got rid of; pulse power supply is provided manually for the pulse guide normally closed solenoid valve (6) of high-pressure and overflowing safety protection device (2) by the power supply adaptor (13) of automobile, normally closed solenoid valve (6) is just opened after the energising several seconds.This moment, gas was by the hollow cylinder of attachment hole (25) from valve seat (23)--the import that enters pulse guide normally closed solenoid valve (6) in the conical cavity; communicate with the air outlet hole (24) of valve seat (23) through this valve (6) outlet (26); the pipeline that enters overcurrent safety protection device outlet back rises its back-pressure; force the spool assembly parts (22) of Over Current Protection System to be opened, recover the normal working of overcurrent protection safety installations.
The automobile current generator (15) that motor air feed safety protection device (19) is carried by solenoid valve (12), power supply adaptor (13) and automobile, automobile inverter (14), automobile electric switch (16) etc. are formed.1 pin of the IC 2 (74HC123) of power supply adaptor (13) is by resistance R 1, capacitor C 1, and 2,3,8,16 pin of the IC 2 of power supply adaptor (13) and 1,8 pin of IC 3 (74HC123) are connected automobile inverter (14) by, IC 1 (7806), resistance R 1.1,8 pin of the IC 3 of power supply adaptor (13) are by resistance R 8 and resistance R 9, and 2,3,16 pin of the IC 3 of power supply adaptor 13 and 1,8 pin of IC 2 are connected the N utmost point of automobile current generator (15) respectively by IC 4 (7806), diode D3 and resistance R 9.The model of triode is 9013 in the electrical schematic diagram, and the model of relay is 4123.Solenoid valve (12) is connected on the motor supply air line (11), when opening automobile electric switch (16), automobile inverter (14) is to power supply adaptor (13) power supply, and solenoid valve (12) is opened, and compressed natural gas enters CNG motor car engine (18) through solenoid valve (12), decompressor (17).Engine ignition running driving automobile generator (15) running.The N utmost point of automobile current generator (15) sends pulse signal and is transported to power supply adaptor (13) and comes control electromagnetic valve (12), keeps the opening state of solenoid valve (12), guarantees that CNG motor car engine (18) runs well.No matter which kind of reason causes CNG motor car engine (18) stall, also stall of automobile current generator (15), the pulse signal of its N utmost point disappears, power supply adaptor (13) is because of losing the power supply that just cuts off solenoid valve (12) from the N utmost point pulse signal of automobile current generator (15) automatically, make solenoid valve (12) close and cut off, guarantee CNG motor air feed safety to CNG motor car engine (18) air feed.
Embodiment's explanation of the present utility model, vehicle-mounted compressed natural gas inflation air supply system can be given CNG motor air feed safely and reliably in specified air feed scope.If because of certain fault causes the high-pressure natural gas overcurrent, then do not need external force just can cut off the conveying of rock gas automatically.After getting rid of, fault can recover normal air feed immediately again.When motor also can stop to the motor air feed automatically because of certain reason stall.When motor break down need maintenance also artificially the closure set Chinese style inflation air feed valve (ball valve) of controlling plate (3) cut off rock gas, and will put only by safety discharging air valve (10) to the residual air of motor thereafter, guaranteed the safety inspection of motor.Except that inflation, said process is finished in operator cabin by the driver, has really realized the vehicle-mounted compressed natural gas inflation safe and reliable use of air feed core requirement easy to maintenance.
Claims (4)
1. a vehicle-mounted compressed natural gas is inflated air feeder, it is by high-pressure bottle (1), high-pressure and overflowing safety protection device (2), pulse guide normally closed solenoid valve (6) and fill the centralized plate (3) of controlling of air feed and form, and it is characterized in that: described high-pressure bottle (1) is always exported pipe end and is connected with high-pressure and overflowing safety protection device (2); Described high-pressure and overflowing safety protection device (2) is controlled plate (3) by centralized inflation air feed and is connected with motor air feed safety protection device (19); The solenoid valve (12) of described motor air feed safety protection device (19) is connected with motor car engine (18) by decompressor (17); Described solenoid valve (12) is controlled its opening and closing by the output signal of power supply adaptor (13).
2. vehicle-mounted compressed natural gas inflation air feeder according to claim 1, it is characterized in that: described high-pressure and overflowing safety protection device (2) is made up of pulse guide normally closed solenoid valve (6) and overcurrent protective device (7); Having a hollow cylinder on the valve seat (23) of described overcurrent protective device (7)--cone shaped body and a hollow cylinder chamber have attachment hole (25) between hollow cylinder--conical cavity and the hollow cylinder chamber; Pulse guide normally closed solenoid valve (6) is installed in the described hollow cylinder chamber, the gas outlet of pulse guide normally closed solenoid valve (6) is the air outlet hole (24) on the valve seat (23), hollow cylinder--be fixed with valve rod (29) by screw thread in the hole of cone shaped body bottom, with being installed on the valve rod (29) behind all-in-one-piece spool assembly parts (22) the cover upper valve core aperture adjustment spring (27) that is threaded, fixedly back-up ring (28) also is housed on the described valve rod (29), and valve body (30) is connected with valve seat (23) by screw thread.
3. pressurized gas pipeline according to claim 1 is carried the high-pressure and overflowing safety protection device, it is characterized in that: described centralized inflation air feed is controlled and is fixed with a cross fitting (8) on the plate (3), one end of this joint (8) is connected with high-pressure and overflowing safety protection device (2), the other end is equipped with a pressure display table, and the 3rd end of cross fitting (8) joins by charging air inlet valve (20) and charging air inlet (9); The 4th end of cross fitting (8) joins with safety discharging air valve (10) and motor air supply pipe (11) respectively by valve (21) and tee union.
4. vehicle-mounted compressed natural gas inflation air feeder according to claim 1, it is characterized in that: 1 pin of the IC 2 of described power supply adaptor (13) is by resistance R 1, capacitor C 1; 2,3,8,16 pin of the IC 2 of power supply adaptor 13 and 1,8 pin of IC 3 are connected automobile inverter (14) by IC 1, resistance R 1; 1,8 pin of the IC 3 of described power supply adaptor (13) are by resistance R 9 and resistance R 8, and 2,3,16 pin of the IC 3 of power supply adaptor (13) and 1,8 pin of IC 2 are by IC 4 resistance R 9, diode D3, be connected the N utmost point of automobile current generator (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228835 CN2516718Y (en) | 2001-07-23 | 2001-07-23 | Vehicle compression natural gas inflation and supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228835 CN2516718Y (en) | 2001-07-23 | 2001-07-23 | Vehicle compression natural gas inflation and supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516718Y true CN2516718Y (en) | 2002-10-16 |
Family
ID=33643817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01228835 Expired - Fee Related CN2516718Y (en) | 2001-07-23 | 2001-07-23 | Vehicle compression natural gas inflation and supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516718Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422540C (en) * | 2005-03-08 | 2008-10-01 | 三菱重工业株式会社 | Engine gas supply apparatus for gas engine and operating method thereof |
| CN102242865A (en) * | 2011-04-11 | 2011-11-16 | 青岛中油通用机械有限公司 | Continuous gas supply device of hydraulic substation trailer |
| CN101446382B (en) * | 2007-11-28 | 2013-06-19 | 上海创洁科技有限公司 | Special gas supply and distribution device |
| CN104890503A (en) * | 2015-06-09 | 2015-09-09 | 杭叉集团股份有限公司 | CNG gas storage system for forklift |
| CN106988866A (en) * | 2017-05-16 | 2017-07-28 | 宋惜元 | A kind of new automobile aerator |
-
2001
- 2001-07-23 CN CN 01228835 patent/CN2516718Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422540C (en) * | 2005-03-08 | 2008-10-01 | 三菱重工业株式会社 | Engine gas supply apparatus for gas engine and operating method thereof |
| CN101446382B (en) * | 2007-11-28 | 2013-06-19 | 上海创洁科技有限公司 | Special gas supply and distribution device |
| CN102242865A (en) * | 2011-04-11 | 2011-11-16 | 青岛中油通用机械有限公司 | Continuous gas supply device of hydraulic substation trailer |
| CN104890503A (en) * | 2015-06-09 | 2015-09-09 | 杭叉集团股份有限公司 | CNG gas storage system for forklift |
| CN106988866A (en) * | 2017-05-16 | 2017-07-28 | 宋惜元 | A kind of new automobile aerator |
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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 |