CN105000527A - Oil gun with oil and gas recovery structure - Google Patents
Oil gun with oil and gas recovery structure Download PDFInfo
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- CN105000527A CN105000527A CN201510399739.9A CN201510399739A CN105000527A CN 105000527 A CN105000527 A CN 105000527A CN 201510399739 A CN201510399739 A CN 201510399739A CN 105000527 A CN105000527 A CN 105000527A
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Abstract
The invention relates to an oil gun, in particular to an oil gun with an oil and gas recovery structure. The oil gun comprises an oil and gas recovery oil gun and a mechanical gas and liquid ratio regulating valve, wherein an inlet of the oil and gas recovery oil gun is connected with the mechanical gas and liquid ratio regulating valve in a sealing manner, and both a gun barrel and a pull rod of the oil and gas recovery oil gun are communicated with a gas chamber; the inlet end of the mechanical gas and liquid ratio regulating valve is connected with a vacuum flow regulating valve in a sealing manner; the gun barrel is sleeved with a gas collecting hood in a sealing manner, an auxiliary valve is mounted in the gun barrel in a pressing manner, and the gas collecting hood is connected with a push rod mechanism; a gas returning pipe is arranged on the side face in the gun barrel, and a gas returning channel I communicated with the gas returning pipe is formed in a gun body on the outer side surface of the gun barrel. The oil gun has the advantages of being safe, environmental-friendly and energy-saved and is the necessary equipment of a secondary oil and gas recovery system and a vehicle-mounted oil and gas recovery system of a gasoline station.
Description
Technical field
The present invention relates to a kind of nozzle, be specifically related to a kind of nozzle with petroleum vapor recovery structure.
Background technology
National environmental protection portion starts the formulation of vehicle-mounted oil filling gas recovery system for oil (ORVR) relevant criterion in August, 2014, but there is incompatibility problem in ORVR system and current petrol service station secondary oil gas reclaiming system, along with the popularization of gasoline car with ORVR system, can because of existing secondary oil gas reclaiming system and ORVR system incompatible, cause petrol station excess emissions.Existing secondary oil gas reclaiming system changes the nozzle having and identify and possess the automobile of ORVR function, automatically A/L is dropped to about 0.33 when ORVR nozzle runs into ORVR automobile, when motor valve normally works, tank pressure keeps negative pressure, and freeing pipe does not produce discharge;
three gas recovery system for oil are installed, solve common petroleum vapor recovery nozzle and the incompatible excess emissions problem caused of ORVR automobile.So need the nozzle of the automobile doing the ORVR function matched with vehicle-mounted gas recovery system for oil.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art and a kind of nozzle with petroleum vapor recovery structure is provided, this nozzle vacuum auxiliary under, get back to sunken oil storage by petroleum vapor recovery passage and petroleum vapor recovery pipeline, oil gas can be prevented to be dispersed in air and cause environmental pollution, potential safety hazard and the wasting of resources.
The object of the present invention is achieved like this:
A kind of nozzle with petroleum vapor recovery structure, comprise petroleum vapor recovery nozzle, mechanical type gas-liquid ratio adjusting valve, entrance and the mechanical type gas-liquid ratio adjusting valve of described petroleum vapor recovery nozzle are tightly connected, described petroleum vapor recovery nozzle comprises gun barrel, plenum section, pull bar part, trigger component, described gun barrel, pull bar part is all communicated with plenum section, described mechanical type gas-liquid ratio adjusting valve entrance point is sealedly connected with a vacuum-flow adjustable valve, described barrel closure is set with a getter cover, described gun barrel inside is pressed with a secondary valve, described getter cover is connected with a transfer bar mechanism, described gun barrel medial surface is provided with a muffler, the rifle body of described gun barrel lateral surface divides and is provided with a return gas channel be communicated with muffler one, described transfer bar mechanism is arranged in return gas channel one, described return gas channel one is communicated with in gun barrel, described gun barrel is communicated with plenum section by a return gas channel two again.
Based on the above, described vacuum-flow adjustable valve comprises valve body and valve gap, described valve gap leaves breather hole, valve gap position is provided with elastic diaphragm, described elastic diaphragm outward flange and valve body, valve gap seals together, elastic diaphragm inner ring is fixed with spring, described lower spring end is connected with valve interior wall, elastic diaphragm moves up and down with spring, tolerance clearance between elastic diaphragm inner ring and valve interior wall forms gas distribution channel, described valve body front end is as oil and gas import, valve rear end is as oil gas vent, gas circuit and oil circuit is provided with between front-end and back-end, described gas circuit one end connects oil and gas import, after gas distribution channel through being formed between elastic diaphragm inner ring and valve interior wall, the other end is communicated with air extractor duct, the gas circuit that described gas distribution channel leading portion is arranged is connected with by-pass prot, described oil circuit one end connects oil inlet, the other end connects oil outlet.
Based on the above, described oil circuit is the hole five of horizontally set, hole end on May Day connects oil inlet, the other end connects oil outlet, described gas circuit comprises the hole one connecting oil and gas import horizontally set, the hole two vertically arranging intercommunicating pore one, the hole three vertically arranged side by side with hole two, and the Kong Si of intercommunicating pore three lower end horizontally set, described hole four other end is communicated with air extractor duct, is the gas distribution channel formed between elastic diaphragm inner ring and valve interior wall between hole two and hole three.
Based on the above, described valve gap is also provided with the observation window for observing elastic diaphragm position.
Based on the above, described valve interior wall coordinates junction to be arranged to raised seals face with elastic diaphragm inner ring,
Based on the above, described getter cover is an elastic construction, and gun barrel slides, and getter cover one end is fixedly set on rifle body by a larynx hoop, and the other end shrinks slip on gun barrel;
Described transfer bar mechanism comprises push rod, push rod spring, described push rod and return gas channel one plug-in mounting, described push rod is crank motion in return gas channel one, one end of described push rod is set with push rod spring, the other end is fixed on a baffle plate by nut, described baffle plate vertical seal is installed in getter cover, and described baffle plate is set with gun barrel vertical seal again;
The side opening of described return gas channel one is provided with the through hole one be communicated with muffler sidewalls orthogonal, the position of described muffler and through hole one vertical connection is closed end, the side of described return gas channel one also offers the through hole two be communicated with gun barrel, and described push rod slides between through hole one and through hole two;
Described return gas channel two is arranged on gun barrel medial surface, and described through hole two and return gas channel two are positioned at the same circumferential location of gun barrel;
Described secondary valve comprises spring, valve body, spool and seal strip, described valve body is fitted in gun barrel, described spool and the movable plug-in mounting of valve body, and spool plug-in mounting rearward end is fixed by nut, valve body described in described spring housing is contained on spool runs through and has oil transportation channel, described seal strip is arranged on the oil outlet edge of oil transportation channel, and described seal strip is sleeved on spool.
Based on the above, relative fixing by a gun barrel anti-rotating pin between described gun barrel with rifle body, be connected in series by anti-rotating pin between described gun barrel with rifle body.
Based on the above, it is globoidal structure that described getter covers on the one end of gun barrel shrinking slip, and this globoidal structure coordinates with fuel tank oil inlet outer fringe seal.
Based on the above, the oil outlet position of the oil transportation channel on described secondary valve is pyramidal structure, and corresponding seal strip is also pyramidal structure, is fixed between described seal strip and spool by nut.
Based on the above, the position that described return gas channel two is communicated with plenum section is provided with a safety cut-off valve, described safety cut-off valve is a cavity structure, and this cavity structure internal placement has a steel ball, and one end that described cavity structure is communicated with plenum section is conical suface structure.
The present invention has following advantage:
This product can by the oil gas that produces in refueling process under VOS Vacuum Operated Secondary, sunken oil storage is got back to by petroleum vapor recovery passage and petroleum vapor recovery pipeline, prevent oil gas to be dispersed in air and cause environmental pollution, hazard to person, potential safety hazard and the wasting of resources, having safety, environmental protection, the advantage such as energy-conservation, is petrol service station secondary oil gas reclaiming system and the indispensable equipment of vehicle-mounted gas recovery system for oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of vacuum-flow adjustable valve.
Fig. 3 is the structural representation of secondary valve.
Fig. 4 is the A-A sectional structure schematic diagram of secondary valve.
Fig. 5 is the enlarged drawing of part A.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
As Fig. 1, 2, 3, 4, shown in 5, a kind of nozzle with petroleum vapor recovery structure, comprise petroleum vapor recovery nozzle, mechanical type gas-liquid ratio adjusting valve, entrance and the mechanical type gas-liquid ratio adjusting valve of described petroleum vapor recovery nozzle are tightly connected, described petroleum vapor recovery nozzle comprises gun barrel 1, plenum section 2, pull bar part 3, trigger component 4, described gun barrel 1, pull bar part 3 is all communicated with plenum section 2, described mechanical type gas-liquid ratio adjusting valve entrance point is sealedly connected with a vacuum-flow adjustable valve 5, described gun barrel 1 sealing shroud is equipped with a getter cover 10, described gun barrel 1 inside is pressed with a secondary valve 6, described getter cover 10 is connected with a transfer bar mechanism, described gun barrel 1 medial surface is provided with a muffler 7, the rifle body of described gun barrel 1 lateral surface divides and is provided with a return gas channel 1 be communicated with muffler 7, described transfer bar mechanism is arranged in return gas channel 1, described return gas channel 1 is communicated with in gun barrel 1, described gun barrel 1 is communicated with plenum section 2 by a return gas channel 29 again.Current nozzle seldom has the structure installing getter cover additional or just do not have getter cover at all, the recovery that the installing additional of getter cover mainly considers oil gas and sealing effectiveness when reclaiming.The effect of secondary valve 6 is mainly when needs refuel a car time, and the effect due to oil pressure can push the resistance of spring open, and gasoline enters into gun barrel by secondary valve, in time refueling complete, can prevent leaking of mailbox internal residual gasoline.The motion that transfer bar mechanism in described return gas channel 1 mainly realizes getter cover drives the motion of transfer bar mechanism, realizes the recovery of oil gas unobstructed and close.
Based on the above, described vacuum-flow adjustable valve 5 comprises valve body 507 and valve gap 501, described valve gap 501 leaves breather hole 515, and the setting of breather hole 515 mainly considers that the gaseous tension in valve body 507 can not be excessive, causes the damage to vacuum-flow adjustable valve 5.Valve gap 501 position is provided with elastic diaphragm 503, described elastic diaphragm 503 outward flange and valve body, valve gap seals together, elastic diaphragm 503 inner ring is fixed with spring 504, described spring 504 lower end is connected with valve body 507 inwall, elastic diaphragm 503 moves up and down with spring 504, tolerance clearance between elastic diaphragm 503 inner ring and valve interior wall forms gas distribution channel, described valve body front end is as oil and gas import, valve rear end is as oil gas vent, gas circuit and oil circuit is provided with between front-end and back-end, described gas circuit one end connects oil and gas import, after gas distribution channel through being formed between elastic diaphragm inner ring and valve interior wall, the other end is communicated with air extractor duct, the gas circuit that described gas distribution channel leading portion is arranged is connected with by-pass prot 510, described oil circuit is the hole 5 513 of horizontally set, one end, hole 5 513 connects oil inlet, the other end connects oil outlet.Described gas circuit comprises the hole 1 connecting oil and gas import horizontally set, the hole 2 509 vertically arranging intercommunicating pore one, the hole 3 511 vertically arranged side by side with hole 2 509, and the hole 4 512 of intercommunicating pore 3 511 lower end horizontally set, described hole 4 512 other end is communicated with air extractor duct, is the gas distribution channel formed between elastic diaphragm inner ring and valve interior wall between hole 2 509 and hole 3 511.Vacuum-flow adjustable valve 5 entirety is divided into gas circuit and oil circuit two main thoroughfares, described asphalt channel is directly communicated with oil inlet oil outlet, gas channels passes through the effect of elastic diaphragm 503 and spring 504 in middle part, realize according to oil and gas content number what degree is elastic diaphragm 503 is opened to, mainly realized the folding degree of elastic diaphragm 503 by the pressure of oil gas.
Based on the above, described valve gap 501 is also provided with the observation window 514 for observing elastic diaphragm position, the convenient degree of observing elastic memberance and opening mainly is considered in the setting of observation window 514, be arranged on the centre of valve gap 501, mainly consider the degree just in time can seeing elastic diaphragm 503 folding very accurately, judge apart from the distance of observation window 514 by observing elastic diaphragm 503, if elastic diaphragm 503 example observes the close together filling 514, so illustrate that the degree of elastic diaphragm 503 folding is larger, the throughput ratio of oil gas is larger, if distant, so illustrate that the degree of elastic diaphragm 503 folding is smaller, oil and gas content is smaller.
Based on the above, described valve body 507 inwall coordinates junction to be arranged to raised seals face 516 with elastic diaphragm inner ring, the setting in raised seals face 516 mainly gets according to the concrete time, such convenience observes the distance of itself and observation window 514 by inspection door, if not this raised seals face 516, so due to the restriction of the size of the bore of observation window 516, the distance of elastic diaphragm 503 and observation window 514 therefore can not be observed very accurately.
Based on the above, described getter cover 10 is an elastic construction, gun barrel 1 slides, getter cover 10 one end is fixedly set on rifle body by a larynx hoop 11, the other end shrinks slip on gun barrel 1, the setting of this structure mainly consider getter cover 10 can and fuel tank oil inlet between form a hermetically-sealed construction, when oil dropping apparatus refuels time, need manually getter cover 10 to be opened, like this at gun barrel 1 and when being deep in fuel tank, getter cover 10 is made just in time to form with the oil inlet outer rim of fuel tank the structure sealed, in time filling it up with again, by manually getter cover 10 being packed up, can slide along gun barrel 1.
Described transfer bar mechanism comprises push rod 12, push rod spring 13, described push rod 12 and return gas channel 1 plug-in mounting, described push rod 12 crank motion in return gas channel 1, one end of described push rod 12 is set with push rod spring 13, the other end is fixed on a baffle plate 14 by nut, described baffle plate 14 vertical seal is installed in getter cover 10, and described baffle plate 14 is set with gun barrel 1 vertical seal again, the side opening of described return gas channel 1 is provided with the through hole 1 be communicated with muffler 7 sidewalls orthogonal, described muffler 7 is closed end with the position of through hole 1 vertical connection, the side of described return gas channel 1 also offers the through hole 2 802 be communicated with gun barrel 1, and described push rod 12 slides between through hole 1 and through hole 2 802, described return gas channel 29 is arranged on gun barrel 1 medial surface, described through hole 2 802 and return gas channel 29 are positioned at the same circumferential location of gun barrel 1, the transfer passage of above structure mainly oil gas, when needs oil dropping apparatus refuels time, at this time need first to open getter cover 10, sealing shroud is contained in the oil inlet outward flange of fuel tank, at this time start to refuel, oil gas will produce simultaneously, produce oil gas and enter into muffler 7, then the oil gas entering into muffler 7 enters in return gas channel 1 by through hole 1, at this time because getter cover 10 is the states opened, therefore, push rod 12 can be driven to travel forward by baffle plate 14, thus compression push rod spring 13, through hole 1 is made to be unimpeded state, oil gas at this time enters in return gas channel 1 along through hole 1, and then enter in return gas channel 29 by through hole 2 802, until time the oil in fuel tank is filled it up with, owing to forming vacuum structure between getter cover and fuel tank oil inlet, return gas channel and plenum section will make because of negative pressure to jump on rifle diaphragm and move, pull bar part is made to depart from like this, under the impetus of oil-air pressure, move backward, thus band movable valve stops refueling, ensure the sealing property of fuel tank oil gun, or what produce because filling it up with oil is excessive, reduce oil gas to reveal, prevent leakage of oil.Oil gas at this time just can carry out the adjustment of oil gas flow by vacuum-flow adjustable valve 5.When fuel tank fills it up with oil time, by manually being drawn in by getter cover 10, at this time push rod 12 will move backward under the effect of push rod spring 13, thus through hole 1 and through hole 2 802 are carried out shutoff, and at this time oil gas would not leak.
Described secondary valve 6 comprises spring 61, valve body 62, spool 63 and seal strip 64, described valve body 62 is fitted in gun barrel 1, described spool 63 and the movable plug-in mounting of valve body 62, and spool 63 plug-in mounting rearward end is fixed by nut, valve body 62 described in described spring 61 is sleeved on spool 63 runs through and has oil transportation channel 65, described seal strip 64 is arranged on the oil outlet edge of oil transportation channel 65, and described seal strip 64 is sleeved on spool 63.In the description of the preceding paragraph, after fuel tank fills it up with oil, seal strip 64 will be closed by secondary valve 6 under the effect of spring 61, and avoiding leakage of oil situation must occur.In time refueling in fuel tank, mainly pushed open by seal strip 64 by oil transportation channel 65 by oil pressure, stretched by spring 61 simultaneously, such oil will be entered in gun barrel by oil transportation channel, thus realizes refueling.With further, the oil outlet position of the oil transportation channel 65 on described secondary valve 6 is pyramidal structure, and corresponding seal strip 64 is also pyramidal structure, is fixed between described seal strip 64 and spool 63 by nut.The oil outlet position of pyramidal structure, mainly facilitates the sealing completely of seal strip 64, and the seal strip 64 of pyramidal structure is good many relative to its effect sealed of seal strip of cylindricality or other structures.In order to ensure being synchronized with the movement between seal strip and spool 63, between spool and nut, install seal strip exist, the end of spool 63 will be provided with step like this, seal strip just in time can be installed on this stepped portions, as shown in Figure 4, like this with regard to the movement back and forth of aspect seal strip 64.
Based on the above, described gun barrel 1 is relative fixing by a gun barrel anti-rotating pin 15 with between rifle body, and described gun barrel 1 is connected in series by anti-rotating pin 15 with between rifle body.The effect of gun barrel anti-rotating pin is very obvious, because in the practice of the invention, in order to the convenience of processing, relative fixing also in order between gun barrel with rifle body, adopts anti-rotating pin 15 well to solve this problem.The structure of anti-rotating pin 15 is with a cap-like structure, in concrete practice, need to make a call to a through hole on rifle body and gun barrel 1 simultaneously, and on rifle body, offer a larger hole, facilitate the installation of the cap of anti-rotating pin 15 to fix, as shown in Figure 1, with regard to easy, anti-rotating pin 15 is fixed like this, can not come off, also can install O type circle additional simultaneously, increase the effect of sealing, prevent leaking of gasoline.
Based on the above, one end that described getter cover 10 shrinks slip on gun barrel 1 is globoidal structure, this globoidal structure coordinates with fuel tank oil inlet outer fringe seal, the setting of globoidal structure, mainly have employed the structure of intrados, as shown in Figure 1, mainly ensure that this cambered surface just in time can form one with fuel tank oil inlet edge and seal completely, can not leakage of oil, or gas leakage.
Based on the above, the position that described return gas channel 29 is communicated with plenum section 2 is provided with a safety cut-off valve 16, described safety cut-off valve 16 is a cavity structure, this cavity structure internal placement has a steel ball 17, and one end that described cavity structure is communicated with plenum section 2 is conical suface structure.The setting of safety cut-off valve 16 mainly prevent oil gun muzzle upwards time also can there is the imagination of leakage of oil, at this time catch up with 17 due to the effect of gravity will by the outlet obstruction of conical cavity, at this time corresponding plenum section would not jump rifle automatically, can not leakage of oil again.
Claims (10)
1. the nozzle with petroleum vapor recovery structure, comprise petroleum vapor recovery nozzle, mechanical type gas-liquid ratio adjusting valve, entrance and the mechanical type gas-liquid ratio adjusting valve of described petroleum vapor recovery nozzle are tightly connected, described petroleum vapor recovery nozzle comprises gun barrel (1), plenum section (2), pull bar part (3), trigger component (4), described gun barrel (1), pull bar part (3) is all communicated with plenum section (2), it is characterized in that: described mechanical type gas-liquid ratio adjusting valve entrance point is sealedly connected with a vacuum-flow adjustable valve (5), described gun barrel (1) sealing shroud is equipped with a getter cover (10), described gun barrel (1) inside is pressed with a secondary valve (6), described getter cover (10) is connected with a transfer bar mechanism, described gun barrel (1) medial surface is provided with a muffler (7), the rifle body of described gun barrel (1) lateral surface divides and is provided with a return gas channel one (8) be communicated with muffler (7), described transfer bar mechanism is arranged in return gas channel one (8), described return gas channel one (8) is communicated with in gun barrel (1), described gun barrel (1) is communicated with plenum section (2) by a return gas channel two (9) again.
2. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterized in that: described vacuum-flow adjustable valve (5) comprises valve body (507) and valve gap (501), described valve gap (501) leaves breather hole (515), valve gap (501) position is provided with elastic diaphragm (503), described elastic diaphragm (503) outward flange and valve body, valve gap seals together, elastic diaphragm (503) inner ring is fixed with spring (504), described spring (504) lower end is connected with valve body (507) inwall, elastic diaphragm (503) moves up and down with spring (504), the tolerance clearance of elastic diaphragm (503) between inner ring and valve interior wall forms gas distribution channel, described valve body front end is as oil and gas import, valve rear end is as oil gas vent, gas circuit and oil circuit is provided with between front-end and back-end, described gas circuit one end connects oil and gas import, after gas distribution channel through being formed between elastic diaphragm inner ring and valve interior wall, the other end is communicated with air extractor duct, the gas circuit that described gas distribution channel leading portion is arranged is connected with by-pass prot (510), described oil circuit one end connects oil inlet, the other end connects oil outlet.
3. a kind of nozzle with petroleum vapor recovery structure according to claim 2, it is characterized in that: described oil circuit is the hole five (513) of horizontally set, one end, hole five (513) connects oil inlet, the other end connects oil outlet, described gas circuit comprises the hole one (508) connecting oil and gas import horizontally set, the hole two (509) of intercommunicating pore one is vertically set, the hole three (511) vertically arranged side by side with hole two (509), and the Kong Si (512) of intercommunicating pore three (511) lower end horizontally set, described Kong Si (512) other end is communicated with air extractor duct, the gas distribution channel formed between elastic diaphragm inner ring and valve interior wall is between hole two (509) and hole three (511).
4. a kind of nozzle with petroleum vapor recovery structure according to claim 2, is characterized in that: described valve gap (501) is also provided with the observation window (514) for observing elastic diaphragm position.
5. a kind of nozzle with petroleum vapor recovery structure according to claim 2, is characterized in that: described valve body (507) inwall coordinates junction to be arranged to raised seals face (516) with elastic diaphragm inner ring.
6. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterized in that: described getter cover (10) is an elastic construction, in the upper slip of gun barrel (1), getter cover (10) one end is fixedly set on rifle body by a larynx hoop (11), and the other end shrinks slip on gun barrel (1);
Described transfer bar mechanism comprises push rod (12), push rod spring (13), described push rod (12) and return gas channel one (8) plug-in mounting, described push rod (12) crank motion in return gas channel one (8), one end of described push rod (12) is set with push rod spring (13), the other end is fixed on a baffle plate (14) by nut, described baffle plate (14) vertical seal is installed in getter cover (10), and described baffle plate (14) is set with gun barrel (1) vertical seal again;
The side opening of described return gas channel one (8) is provided with the through hole one (801) be communicated with muffler (7) sidewalls orthogonal, described muffler (7) is closed end with the position of through hole one (801) vertical connection, the side of described return gas channel one (8) also offers the through hole two (802) be communicated with gun barrel (1), and described push rod (12) slides between through hole one (801) and through hole two (802);
Described return gas channel two (9) is arranged on gun barrel (1) medial surface, and described through hole two (802) and return gas channel two (9) are positioned at the same circumferential location of gun barrel (1);
Described secondary valve (6) comprises spring (61), valve body (62), spool (63) and seal strip (64), described valve body (62) is fitted in gun barrel (1), described spool (63) and valve body (62) movable plug-in mounting, and spool (63) plug-in mounting rearward end is fixed by nut, described spring (61) is sleeved on spool (63), described valve body (62) runs through and has oil transportation channel (65), described seal strip (64) is arranged on the oil outlet edge of oil transportation channel (65), and described seal strip (64) is sleeved on spool (63).
7. a kind of nozzle with petroleum vapor recovery structure according to claim 6, it is characterized in that: described gun barrel (1) is relative fixing by a gun barrel anti-rotating pin (15) with between rifle body, and described gun barrel (1) is connected in series by anti-rotating pin (15) with between rifle body.
8. a kind of nozzle with petroleum vapor recovery structure according to claim 6, is characterized in that: described getter cover (10) is globoidal structure in the upper one end of shrinking slip of gun barrel (1), and this globoidal structure coordinates with fuel tank oil inlet outer fringe seal.
9. a kind of nozzle with petroleum vapor recovery structure according to claim 6, it is characterized in that: the oil outlet position of the oil transportation channel (65) on described secondary valve (6) is pyramidal structure, corresponding seal strip (64) is also pyramidal structure, is fixed between described seal strip (64) and spool (63) by nut.
10. a kind of nozzle with petroleum vapor recovery structure according to claim 1, it is characterized in that: the position that described return gas channel two (9) is communicated with plenum section (2) is provided with a safety cut-off valve (16), described safety cut-off valve (16) is a cavity structure, this cavity structure internal placement has a steel ball (17), and one end that described cavity structure is communicated with plenum section (2) is conical suface structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510399739.9A CN105000527B (en) | 2015-07-09 | 2015-07-09 | A kind of nozzle with petroleum vapor recovery structure |
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|---|---|---|---|
| CN201510399739.9A CN105000527B (en) | 2015-07-09 | 2015-07-09 | A kind of nozzle with petroleum vapor recovery structure |
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| CN105000527A true CN105000527A (en) | 2015-10-28 |
| CN105000527B CN105000527B (en) | 2017-08-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106145019A (en) * | 2016-08-31 | 2016-11-23 | 郑州永邦环保科技有限公司 | A kind of Novel oil gas reclaiming type nozzle |
| CN108706541A (en) * | 2018-05-03 | 2018-10-26 | 江苏润宇环境工程有限公司 | Petroleum vapor recovery dust cover |
| CN113816328A (en) * | 2020-06-18 | 2021-12-21 | 中国石油化工股份有限公司 | Oil gun and oiling machine considering both vehicle-mounted oil gas recovery system and secondary oil gas recovery system of gas station |
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| CN113816328A (en) * | 2020-06-18 | 2021-12-21 | 中国石油化工股份有限公司 | Oil gun and oiling machine considering both vehicle-mounted oil gas recovery system and secondary oil gas recovery system of gas station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105000527B (en) | 2017-08-29 |
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