CN107654840B - Indexing type hydrogen fuel cell automobile hydrogenation gun - Google Patents
Indexing type hydrogen fuel cell automobile hydrogenation gun Download PDFInfo
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- CN107654840B CN107654840B CN201711047447.4A CN201711047447A CN107654840B CN 107654840 B CN107654840 B CN 107654840B CN 201711047447 A CN201711047447 A CN 201711047447A CN 107654840 B CN107654840 B CN 107654840B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The invention discloses an indexing type hydrogen fuel cell automobile hydrogenation gun, which belongs to the technical field of hydrogen fuel cell automobiles and comprises an indexing linkage mechanism and a switching valve mechanism, wherein the switching valve mechanism can be communicated with an automobile hydrogenation port, the indexing linkage mechanism is connected with the switching valve mechanism, and the air inlet and outlet states of the switching valve mechanism are controlled by the indexing linkage mechanism; the switching valve mechanism comprises an inlet valve body, and two ends of the inlet valve body are respectively connected with an outlet valve body and a diversion valve body. The problem of reliable sealing and surplus hydrogen safety in the hydrogen filling process among the prior art is solved in the above-mentioned setting, guarantees that hydrogenation machine hydrogenation operation when giving hydrogen fuel cell car hydrogenation is simplified, has solved mechanical transmission and has had reverse delay, still can avoid hydrogenation rifle unexpected to drop to the handle operation torsion that produces because of the high pressure that can be better is avoided. Meanwhile, the check valve, the exhaust valve and the filling valve are integrated into a whole, so that the operation flow is simplified, and the states of the valves are adjustable and controllable.
Description
Technical Field
The invention belongs to the technical field of hydrogen fuel cell automobiles, and particularly relates to an indexing type hydrogen fuel cell automobile hydrogenation gun.
Background
Energy problems are one of the important problems facing the society today, and fossil fuels are eventually exhausted. The development of new energy is a trend pursued in the society of today, and the environmental pollution-free fuel cell is a trend of new energy development.
Fuel cells are powered by electrochemical reactions rather than by combustion (gasoline, diesel) or energy storage (battery) means-most typically conventional back-up power schemes. Combustion releases contaminants such as COx, NOx, SOx gas and dust. As described above, the fuel cell generates only water and heat. If hydrogen is generated by renewable energy sources (photovoltaic panels, wind power generation and the like), the whole cycle is a complete process without harmful substance emission.
Hydrogen belongs to low molecular gas, and the explosion limit range is: 4.1-74.2% of volume concentration, explosion is easy to occur, safety accidents are caused, the current hydrogenation gun market is divided into two pressure levels of 35MPa and 70MPa, the higher the pressure is, the higher the requirements on the sealing performance and safety are, the zero leakage air tightness requirements are met while the compressive strength is met, the high pressure resistance and hydrogen embrittlement resistance are required to be met for the material selection of the hydrogenation gun, and the sealing material is required to be self-lubricating and has high molecular organization. The prior art mainly has the following problems: the hydrogen filling process has high requirements on reliability and tightness, residual hydrogen is thoroughly and safely diffused, the hydrogenation machine is complex to operate when the hydrogen fuel cell automobile is hydrogenated, and common hydrogenation mechanical transmission has reverse delay. At the same time there is also: the hydrogenation gun is combined with the hydrogenation device, the hydrogenation gun is unreliable and easy to accidentally drop, the handle is operated by high pressure, the torsion and the part structure are various and complex, the operation flow is long, and the reliability is low.
Disclosure of Invention
The invention provides an indexing type hydrogen fuel cell automobile hydrogenation gun, which is characterized by comprising the following components in parts by weight:
1) The problem of reliable sealing and safe bleeding of residual hydrogen in the hydrogen filling process in the prior art is solved;
2) The hydrogenation operation of the hydrogenation machine is simplified when the hydrogenation fuel cell automobile is hydrogenated, the reverse delay of mechanical transmission is solved, the accidental falling of a hydrogenation gun can be avoided, and the handle operation torsion caused by high pressure can be well avoided;
3) The check valve, the exhaust valve and the filling valve are integrated into a whole, so that the operation flow is simplified, and the states of the valves are adjustable and controllable.
The indexing type hydrogen fuel cell automobile hydrogenation gun comprises an indexing linkage mechanism and a switching valve mechanism, wherein the switching valve mechanism can be communicated with a hydrogen fuel cell automobile hydrogenation port, the indexing linkage mechanism is connected with the switching valve mechanism, and the air inlet and outlet states of the switching valve mechanism are controlled by the indexing linkage mechanism;
further, the switching valve mechanism comprises an inlet valve body, and two ends of the inlet valve body are respectively connected with an outlet valve body and a diversion valve body;
further, an operation valve core capable of sliding in the axial direction is arranged in the inlet valve body, and the sliding quantity of the operation valve core is controlled by the indexing linkage mechanism;
further, an outlet one-way valve core is arranged in the outlet valve body and is respectively communicated with a hydrogenation port and an operation valve core of the hydrogen fuel cell automobile;
further, an exhaust valve sleeve, an air inlet sealing bush and a flow guide valve core are sequentially arranged in the flow guide valve body along the exhaust direction, an air filling sealing assembly is arranged between the exhaust valve sleeve and the air inlet sealing bush, and the air filling sealing assembly ensures that the flow guide valve core and the exhaust valve sleeve form an airtight structure;
further, the diversion valve core and the air inlet pipeline form an air flow passage, the diversion valve core is connected with the inlet one-way valve core through an inlet spring, the inlet spring keeps the tail end of the inlet one-way valve core normally sealed on the end face of the air-entrapping sealing assembly, and the inlet end of the inlet one-way valve core is inserted into the exhaust valve sleeve;
furthermore, a floating sealing taper sleeve is arranged at one end, close to the inlet valve body, inside the exhaust valve sleeve, and can move along the axis in the exhaust valve sleeve, the floating sealing taper sleeve can be matched with the inlet one-way valve core and the operating valve core respectively to form a conical surface sealed pipeline passage, and the floating sealing taper sleeve is communicated with the assembling surface of the exhaust valve sleeve and the exhaust pipeline to form an airflow passage.
Due to the arrangement, the one-way valve, the exhaust valve and the filling valve are integrated into a whole, so that the operation flow is simplified, and the states of the valves are adjustable and controllable; and the hydrogenation operation of the hydrogenation machine is simplified when the hydrogenation fuel cell car is hydrogenated, the reverse delay of mechanical transmission is solved, and the accidental falling of a hydrogenation gun can be avoided.
The through floating sealing taper sleeve is used as a conversion piece for sealing/opening the air passage, is ingenious in design, can ensure higher reliability, greatly improves the integral use convenience, and achieves safe operation of air filling and air exhausting.
Further, a first vent hole is formed in the side wall of the tail end of the outlet one-way valve core, a first communication cavity is formed between the outlet valve body and the inlet valve body, and the first communication cavity is communicated with an operation valve core gas circuit; the outlet one-way valve core can move in the outlet valve body along the axis to enable the first vent hole to enter the first communication cavity; an outlet spring is further arranged between the outlet one-way valve core and the operation valve core, a first outlet sealing assembly is sleeved between the tail end of the outlet one-way valve core and the outlet valve body, and the outlet spring keeps the tail end of the one-way valve core normally sealed on the end face of the first outlet sealing assembly.
Further, a second outlet sealing assembly is arranged between the connecting end of the outlet one-way valve core and the automobile hydrogenation port and the outlet valve body; and a first sealing bushing and a communication cavity sealing assembly are arranged between the inner wall of the first communication cavity and the outer wall of the operation valve core side by side.
Further, the flow guiding valve body is respectively connected with an air inlet hose joint and an air outlet hose joint; the air inlet hose joint is communicated with the air passage of the diversion valve core; and the exhaust hose joint is communicated with an assembling surface gas circuit between the floating sealing taper sleeve and the exhaust valve sleeve.
Furthermore, the outside of the diversion valve body is also connected with a gun handle.
Further, the device also comprises a guide mechanism, wherein the guide mechanism comprises a sliding sleeve which is arranged outside the outlet valve body and can move along the axis, a sliding spring is arranged between the sliding sleeve and the outlet valve body, and the axial movement quantity of the guide mechanism is controlled by the indexing linkage mechanism; the clamping jaw and the guide positioning block are connected to the outlet valve body through a steel wire clamping ring, and when the sliding sleeve moves towards the hydrogenation opening of the fuel cell automobile along the axis, the clamping jaw and the guide positioning block are pressed to overcome the tightening force of the steel wire clamping ring, and the clamping jaw contracts and tightly clamps the hydrogenation opening of the hydrogen cell automobile.
Further, the indexing linkage mechanism comprises a cam shaft and a handle disc;
further, the cam shaft is arranged outside the inlet valve body and connected with the operation valve core through a poking pin, and when the cam shaft rotates, the poking pin is pushed to drive the operation valve core to do linear reciprocating motion;
further, the handle disc is connected to the outside of the cam shaft and can rotate along with the cam shaft, and the handle disc is arranged in a convex shape; the rear end of the sliding sleeve is contacted with a handle disc, and the handle disc rotates to control the axial movement amount of the sliding sleeve.
Further, the valve further comprises an inlet sealing bushing, wherein the inlet sealing bushing is arranged between the outside of the operating valve core and the inner wall of the inlet valve body and is close to one end of the diversion valve body; an inlet sealing assembly is further arranged between the inlet sealing bush and the operating valve core.
Further, the indexing linkage mechanism also comprises a handle, and the handle is connected with the cam shaft and can drive the cam shaft to rotate.
Furthermore, the front end of the sliding sleeve is also provided with a dustproof rubber sleeve; the hydrogenation port of the hydrogen fuel cell automobile is according to GB/T26779.
Preferably, in order to ensure the tightness of the whole structure, the sealing element and the sealing device are prepared from high molecular polytetrafluoroethylene materials with molecular weight of 200 ten thousand.
In summary, the technical means are adopted, so that the beneficial effects of the invention are as follows:
1. the problem of reliable sealing and safe bleeding of residual hydrogen in the hydrogen filling process in the prior art is solved; the inner and outer composite sealing mode and the adopted high polymer polytetrafluoroethylene are used as the preparation materials, so that the problem of easy leakage of gas is solved.
2. Convenient operation, light and flexible, and simpler operation mode.
3. The hydrogenation machine is simplified in hydrogenation operation of the hydrogen fuel cell automobile, the problem that reverse delay exists in mechanical transmission is solved, accidental falling of a hydrogenation gun can be avoided, and handle operation torsion caused by high pressure can be well avoided.
4. The check valve, the exhaust valve and the filling valve are integrated into a whole, so that the operation flow is simplified, and the states of the valves are adjustable and controllable.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the structure of the first vent hole and the first communication cavity according to the present invention;
FIG. 4 is a swing schematic of a twist grip of the present invention;
FIG. 5 is an overall schematic of the twist grip of the present invention at 0;
FIG. 6 is an overall schematic of the twist grip of the present invention at 45;
FIG. 7 is an overall schematic of the twist grip of the present invention at 90;
FIG. 8 is an enlarged view of the twist grip of the present invention communicating with the exhaust line at 90;
FIG. 9 is an overall schematic of the twist grip of the present invention at 180;
FIG. 10 is an enlarged view of the rotary handle of the present invention communicating with the air intake conduit at 180;
FIG. 11 is an exploded view of the present invention;
the marks in the figure: 1. a hydrogen fuel cell automobile hydrogenation port; 2. clamping jaws; 4. an outlet one-way valve core; 101. a guide positioning block; 102. a second outlet seal assembly; 103. a first outlet seal assembly; 104. a first vent hole; 105. a first communication chamber; 201. a sliding sleeve; 202. a wire collar; 203. a sliding spring; 204. a dustproof rubber sleeve; 401. an outlet valve body; 402. an outlet spring; 403. an inlet seal assembly; 404. an inlet seal bushing; 501. an inlet valve body; 502. operating the valve core; 503. a communication cavity sealing assembly; 504. a first seal bushing; 505. a poking pin; 601. a cam shaft; 602. a handle plate; 603. rotating the handle; 701. a diversion valve body; 702. gun handle; 703. an air intake hose connector; 704. an exhaust hose connector; 801. an inlet one-way valve core; 802. an air-entraining seal assembly; 803. an intake seal bushing; 804. an inlet spring; 805. floating sealing taper sleeve; 806. an exhaust valve sleeve; 807. a diversion valve core.
Detailed Description
For a further understanding of the invention, its features and advantages, reference should be made to the following examples which illustrate the structure of the invention and are to be considered in connection with the accompanying drawings.
Example 1: as shown in figures 1 to 3 and figure 11,
the indexing type hydrogen fuel cell automobile hydrogenation gun comprises an indexing linkage mechanism and a switching valve mechanism, wherein the switching valve mechanism can be communicated with a hydrogen fuel cell automobile hydrogenation port 1, the indexing linkage mechanism is connected with the switching valve mechanism, and the air inlet and outlet states of the switching valve mechanism are controlled by the indexing linkage mechanism; optionally, the hydrogenation port 1 of the hydrogen fuel cell automobile is according to GB/T26779.
The switching valve mechanism comprises an inlet valve body 501, and two ends of the inlet valve body 501 are respectively connected with an outlet valve body 401 and a diversion valve body 701;
an operation valve core 502 capable of sliding in the axial direction is arranged in the inlet valve body 501, the indexing linkage mechanism comprises a cam shaft 601, the cam shaft 601 is arranged outside the inlet valve body 501 and is connected with the operation valve core 502 through a poking pin 505, and when the cam shaft 601 rotates, the poking pin 505 is pushed to drive the operation valve core 502 to do linear reciprocating motion;
an outlet one-way valve core 4 is arranged in the outlet valve body 401, and the outlet one-way valve core 4 is respectively communicated with the hydrogenation port 1 of the hydrogen fuel cell automobile and the operation valve core 502;
specifically, the following settings may be made: a first vent hole 104 is formed in the side wall of the tail end of the outlet one-way valve core 4, a first communication cavity 105 is formed between the outlet valve body 401 and the inlet valve body 501, and the first communication cavity 105 is in gas circuit communication with the operation valve core 502; the outlet one-way valve core 4 can move along the axis in the outlet valve body 401 to enable the first vent hole 104 to enter the first communication cavity 105; an outlet spring 402 is further arranged between the outlet unidirectional valve core 4 and the operation valve core 502, a first outlet sealing component 103 is sleeved between the tail end of the outlet unidirectional valve core 4 and the outlet valve body 401, and the outlet spring 402 keeps the tail end of the unidirectional valve core normally sealed on the end face of the first outlet sealing component 103.
In particular, to ensure air tightness between the inlet valve body 501 and the pilot valve body 701, an inlet sealing bush 404 may be provided between the outside of the operation valve core 502 and the inner wall of the inlet valve body 501 and near one end of the pilot valve body 701;
further, an inlet seal assembly 403 is disposed between the inlet seal bushing 404 and the operating spool 502.
In a preferred embodiment, the sealing means between the check valve element 4 and the outlet valve body 401 may be as follows: a second outlet sealing component 102 is arranged between the connecting end of the outlet one-way valve core 4 and the automobile hydrogenation port and the outlet valve body 401; a first sealing bush 504 and a communication cavity sealing assembly 503 are also arranged between the inner wall of the first communication cavity 105 and the outer wall of the operating valve core 502.
An exhaust valve sleeve 806, an air inlet sealing bushing 803 and a flow guiding valve core 807 are sequentially arranged in the flow guiding valve body 701 along the exhaust direction, an air filling sealing assembly 802 is arranged between the exhaust valve sleeve 806 and the air inlet sealing bushing 803, and the air filling sealing assembly 802 ensures that the flow guiding valve core 807 and the exhaust valve sleeve 806 form an airtight structure; the inlet spring 804 keeps the tail end of the inlet check valve 801 normally sealed to the end face of the air entrainment sealing assembly 802, and the inlet end of the inlet check valve 801 is inserted into the exhaust valve housing 806.
In the above arrangement of the diversion valve body 701, a preferred specific scheme is as follows: the flow guiding valve body 701 is respectively connected with an air inlet hose joint 703 and an air outlet hose joint 704, and the outside of the flow guiding valve body 701 is also connected with a gun handle 702; the inlet hose fitting 703 is in air path communication with a diverter valve 807 to form an inlet passageway, the diverter valve 807 being connected to inlet check valve 801 by an inlet spring 804.
A floating sealing taper sleeve 805 is arranged at one end, close to the inlet valve body 501, inside the exhaust valve sleeve 806, the floating sealing taper sleeve 805 can move along the axis inside the exhaust valve sleeve 806, and the floating sealing taper sleeve 805 can be matched with the inlet check valve core 801 and the operating valve core 502 respectively to form a conical surface sealed pipeline passage.
The assembling surfaces of the floating sealing taper sleeve 805 and the exhaust valve sleeve 806 are communicated with an exhaust pipeline to form an air flow passage, and the exhaust hose joint 704 is communicated with the assembling surfaces of the floating sealing taper sleeve 805 and the exhaust valve sleeve 806 in an air path to form an exhaust passage.
In particular, in any combination of the basic aspects or in any/all combination with the preferred embodiments, the present invention may further continue to be preferred in the features described above as follows:
it also comprises a guiding mechanism, wherein the guiding mechanism comprises a sliding sleeve 201 which is arranged outside the outlet valve body 401 and can move along the axis, and a sliding spring 203 is arranged between the sliding sleeve 201 and the outlet valve body 401;
the indexing linkage mechanism further comprises a handle disc 602, wherein the handle disc 602 is connected to the outside of the cam shaft 601 and can rotate along with the cam shaft 601, and the handle disc 602 is arranged in a convex shape; the rear end of the sliding sleeve 201 is in contact with a handle disc 602, and the handle disc 602 rotates along with a cam shaft 601 so as to push the sliding sleeve 201 to axially slide.
Further, in the above preferred embodiment, the present invention further comprises a clamping jaw 2 and a guide positioning block 101 which are arranged between the sliding sleeve 201 and the outlet valve body 401, wherein the clamping jaw 2 and the guide positioning block 101 are connected to the outlet valve body 401 through a wire clamping ring 202, and when the sliding sleeve 201 moves along the axis towards the hydrogenation port of the fuel cell automobile, the clamping jaw 2 and the guide positioning block 101 are pressed against the contraction force of the wire clamping ring 202, and the clamping jaw 2 contracts and clamps the hydrogenation port 1 of the hydrogen cell automobile;
the front end of the sliding sleeve 201 is also provided with a dustproof rubber sleeve 204.
Preferably, the indexing linkage further comprises a rotary handle 603, wherein the rotary handle 603 is connected with the cam shaft 601 and can drive the cam shaft 601 to rotate, so as to drive the handle disc 602 to rotate and operate the valve core 502 to do linear reciprocating motion.
Example 2: as shown in fig. 4 to 10, for a preferred set-up of the intake-exhaust conversion workflow set forth in the present invention,
as shown in fig. 4, a rotating handle 603 of the present invention is shown. In which the rotary handles 603 are rotated at different angles, respectively, the working procedure of the present invention is as follows:
1) As shown in fig. 5, the rotating handle 603 is at the position of 0 degrees, the hydrogenation gun is not connected with the hydrogenation port 1 of the hydrogen fuel cell automobile, at this time, the exhaust pipeline inside the hydrogenation gun is communicated, the air inlet pipeline is closed, and the whole hydrogenation gun is in a closed state;
as shown in fig. 6, the rotating handle 603 is rotated to a position of 45 degrees, the hydrogenation gun is inserted into the hydrogenation port 1 of the hydrogen fuel cell car, the handle disc 602 of the hydrogenation gun drives the sliding sleeve 201 to move forward, and the clamping claw 2 is forced to overcome the elasticity of the steel wire clamping ring 202 and radially shrink to be meshed with the trapezoid ring groove of the hydrogenation port 1 of the hydrogen fuel cell car. Meanwhile, after the outlet one-way valve core 4 is mutually abutted with the hydrogenation port 1 of the hydrogen fuel cell automobile, the outlet one-way valve core 4 moves backwards against the elasticity of an outlet spring, the outlet one-way valve core 4 is jacked up, an air outlet pipeline passage of the hydrogenation gun is opened, and at the moment, an air outlet pipeline is opened;
as shown in fig. 7 and 8, the rotary handle 603 is turned again to 90 degrees, the cam shaft 601 rotates simultaneously, and the operating valve core 502 is driven to move backwards, at this time, the operating valve core 502 slowly presses the floating sealing taper sleeve 805 and further presses the inlet check valve core 801 against the acting force of the inlet spring 804, so that the inlet check valve core 801 is forced to move backwards, and the inlet check valve core 801 slowly moves away from the air-filling sealing assembly 802 to be separated, at this time, the air-filling passage of the air-filling valve sleeve 806 is slowly closed and ready to be opened;
as shown in fig. 9 and 10, continuing to rotate the rotary handle 603 from the 90 degrees to the 180 degrees position, simultaneously rotating the cam shaft 601 and driving the operating valve core 502 to continue to move backwards, at this time, the operating valve core 502 contacts with the conical surface of the floating sealing taper sleeve 805 and is completely sealed, and further presses the inlet check valve core 801 to overcome the acting force of the inlet spring 804 and the sealing force generated by high-pressure hydrogen, so that the inlet check valve core 801 is forced to move backwards and completely separate from the movement of the air filling sealing assembly 802, at this time, the inlet check valve core 801 is communicated with the air filling passage, the air filling passage is integrally formed, and at the same time, the air discharging passage is closed.
At this time, hydrogen enters the outlet valve body 401 through the inlet hose joint 703, the diversion valve body 701, the diversion valve element 807, the inlet unidirectional valve element 801 and the floating sealing taper sleeve 805, and fills the valve cavity to form a high pressure cavity by operating the valve element 502; the continuous and uniform supporting force formed under the action of the air pressure effectively fixes the sliding sleeve 201, prevents the sliding sleeve 201 from axially sliding and radially rotating, and prevents safety accidents such as gun disengagement, gun forced pulling and the like caused by improper operation in the process of filling the hydrogen; after the high-pressure hydrogen enters the hydrogenation port through the outlet one-way valve core 4, a one-way valve in the hydrogen fuel cell automobile can be opened under the action of air pressure, and the hydrogen is filled into the automobile high-pressure steel cylinder.
2) When the pressure of the hydrogen in the steel cylinder of the hydrogen fuel cell car is equal to the pressure in the hydrogenation gun, the one-way valve at the rear end of the hydrogenation port at one side of the car can be automatically closed under the action force of the spring, and the hydrogen filling is stopped.
3) When a stop signal appears at the hydrogenation machine end, the gun is required to be pulled or pulled, at this time, a part of residual high-pressure hydrogen exists in the hydrogenation gun, and the gun can be pulled or pulled safely only after the air exhaust operation is carried out, and the concrete implementation process is as follows: the rotary handle 603 rotates reversely to a 90-degree position, the inlet one-way valve core 801 moves forwards under the resilience force of the inlet spring 804 by driving the operation valve core 502 to move forwards, the inlet one-way valve core 801 is attached to the air-entrapping sealing assembly 802, the air path connection between the inlet one-way valve core 801 and the hydrogenation passage is cut off, and the hydrogen source is cut off at the moment;
the handle is reversely rotated again to the 45-degree position, the operating valve core 502 continues to move forwards and is separated from the floating sealing taper sleeve 805, an exhaust passage of the exhaust valve sleeve 806 is opened, high-pressure hydrogen in the hydrogenation gun is discharged into the centralized emptying pipeline through the exhaust hose connector to be safely emptied, the safety of the operating environment is guaranteed, finally the rotating handle 603 is rotated again to 0 degree, the handle disc 602 of the hydrogenation gun returns to the initial position, the sliding sleeve 201 moves backwards under the action of the spring force, the clamping claw 2 radially expands and expands, the engagement state of the clamping claw 2 and the trapezoidal annular groove of the hydrogenation opening fails, the joint of the one-way valve core 4 at the outlet of the hydrogenation gun and the hydrogenation opening is separated by the forward ejection of the action of the spring force of the outlet, the one-way valve core 4 at the outlet is combined with the inlet sealing assembly, the outlet of the hydrogenation gun is closed, and the hydrogenation gun is pulled out.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. An indexing type hydrogen fuel cell automobile hydrogenation gun is characterized in that:
the device comprises an indexing linkage mechanism and a switching valve mechanism, wherein the switching valve mechanism can be communicated with a hydrogenation port (1) of a hydrogen fuel cell automobile, the indexing linkage mechanism is connected with the switching valve mechanism, and the air inlet and outlet states of the switching valve mechanism are controlled by the indexing linkage mechanism;
the switching valve mechanism comprises an inlet valve body (501), and two ends of the inlet valve body (501) are respectively connected with an outlet valve body (401) and a diversion valve body (701);
an operation valve core (502) capable of sliding in the axial direction is arranged in the inlet valve body (501), and the sliding quantity of the operation valve core (502) is controlled by the indexing linkage mechanism;
an outlet one-way valve core (4) is arranged in the outlet valve body (401), the outlet one-way valve core (4) is respectively communicated with a hydrogenation port (1) and an operation valve core (502) of the hydrogen fuel cell automobile, a first vent hole (104) is formed in the side wall of the tail end of the outlet one-way valve core (4), a first communication cavity (105) is formed between the outlet valve body (401) and the inlet valve body (501), and the first communication cavity (105) is in gas circuit communication with the operation valve core (502); the outlet one-way valve core (4) can move along the axis in the outlet valve body (401) to enable the first vent hole (104) to enter the first communication cavity (105); an outlet spring (402) is further arranged between the outlet one-way valve core (4) and the operation valve core (502), a first outlet sealing component (103) is sleeved between the tail end of the outlet one-way valve core (4) and the outlet valve body (401), and the outlet spring (402) keeps the tail end of the one-way valve core normally sealed on the end face of the first outlet sealing component (103);
an exhaust valve sleeve (806), an air inlet sealing bushing (803) and a flow guiding valve core (807) are sequentially arranged in the flow guiding valve body (701) along the exhaust direction, an air filling sealing assembly (802) is arranged between the exhaust valve sleeve (806) and the air inlet sealing bushing (803), and the air filling sealing assembly (802) ensures that the flow guiding valve core (807) and the exhaust valve sleeve (806) form an airtight structure;
the air flow guiding valve core (807) and the air inlet pipeline form an air flow passage, the air flow guiding valve core (807) is connected with the inlet one-way valve core (801) through an inlet spring (804), the inlet spring (804) keeps the tail end of the inlet one-way valve core (801) normally sealed on the end face of the air filling sealing assembly (802), and the inlet end of the inlet one-way valve core (801) is inserted into the exhaust valve sleeve (806);
a floating sealing taper sleeve (805) is arranged at one end, close to the inlet valve body (501), inside the exhaust valve sleeve (806), the floating sealing taper sleeve (805) can move along an axis in the exhaust valve sleeve (806), the floating sealing taper sleeve (805) can be matched with the inlet one-way valve core (801) and the operating valve core (502) respectively to form a conical surface sealed pipeline passage, and the floating sealing taper sleeve (805) is communicated with an assembling surface of the exhaust valve sleeve (806) and an exhaust pipeline to form an airflow passage; the device further comprises a guide mechanism, wherein the guide mechanism comprises a sliding sleeve (201) which is arranged outside the outlet valve body (401) and can move along the axis, a sliding spring (203) is further arranged between the sliding sleeve (201) and the outlet valve body (401), and the axial movement amount of the guide mechanism is controlled by the indexing linkage mechanism; the device further comprises a clamping claw (2) and a guide positioning block (101) which are arranged between the sliding sleeve (201) and the outlet valve body (401), wherein the clamping claw (2) and the guide positioning block (101) are connected to the outlet valve body (401) through a steel wire clamping ring (202), and when the sliding sleeve (201) moves towards a hydrogenation port of a fuel cell automobile along an axis, the clamping claw (2) and the guide positioning block (101) are pressed to overcome the contraction force of the steel wire clamping ring (202), and the clamping claw (2) contracts to clamp the hydrogenation port of the hydrogen cell automobile;
the indexing linkage mechanism comprises a cam shaft (601) and a handle disc (602);
the cam shaft (601) is arranged outside the inlet valve body (501) and connected with the operation valve core (502) through a poking pin (505), and when the cam shaft (601) rotates, the poking pin (505) is pushed to drive the operation valve core (502) to do linear reciprocating motion;
the handle disc (602) is connected to the outside of the cam shaft (601) and can rotate along with the cam shaft (601), and the handle disc (602) is arranged in a convex shape; the rear end of the sliding sleeve (201) is in contact with a handle disc (602), and the handle disc (602) rotates along with a cam shaft (601) to push the sliding sleeve (201) to axially slide;
the flow guiding valve body (701) is respectively connected with an air inlet hose joint (703) and an air outlet hose joint (704); the air inlet hose joint (703) is in air circuit communication with the diversion valve core (807); the vent hose fitting (704) is in air path communication with the mounting face between the floating seal cone sleeve (805) and the vent valve sleeve (806).
2. An indexing hydrogen fuel cell car hydrogenation gun according to claim 1, wherein: a second outlet sealing assembly (102) is further arranged between the connecting end of the outlet one-way valve core (4) and the automobile hydrogenation port and the outlet valve body (401); a first sealing bush (504) and a communication cavity sealing component (503) are arranged between the inner wall of the first communication cavity (105) and the outer wall of the operation valve core (502) side by side.
3. An indexing hydrogen fuel cell car hydrogenation gun according to claim 1, wherein: and a gun handle (702) is further connected to the outside of the diversion valve body (701).
4. A hydrogen gun for an indexing hydrogen fuel cell car according to any one of claims 1 to 3, wherein: the valve further comprises an inlet sealing bushing (404), wherein the inlet sealing bushing (404) is arranged between the outside of the operating valve core (502) and the inner wall of the inlet valve body (501) and is close to one end of the diversion valve body (701); an inlet sealing assembly (403) is further arranged between the inlet sealing bush (404) and the operating valve core (502).
5. An indexing hydrogen fuel cell car hydrogenation gun according to claim 4, wherein: the indexing linkage mechanism further comprises a rotating handle (603), wherein the rotating handle (603) is connected with the cam shaft (601) and can drive the cam shaft (601) to rotate.
6. An indexing hydrogen fuel cell car hydrogenation gun according to claim 5, wherein: the front end of the sliding sleeve (201) is also provided with a dustproof rubber sleeve (204); the hydrogenation port (1) of the hydrogen fuel cell automobile is according to GB/T26779.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711047447.4A CN107654840B (en) | 2017-10-31 | 2017-10-31 | Indexing type hydrogen fuel cell automobile hydrogenation gun |
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| CN201711047447.4A CN107654840B (en) | 2017-10-31 | 2017-10-31 | Indexing type hydrogen fuel cell automobile hydrogenation gun |
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| CN107654840A CN107654840A (en) | 2018-02-02 |
| CN107654840B true CN107654840B (en) | 2023-09-05 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099308B (en) * | 2018-11-13 | 2024-03-15 | 成都安迪生测量有限公司 | Gas adding device and gas filling device |
| CN109812698A (en) * | 2019-02-28 | 2019-05-28 | 张家港氢云新能源研究院有限公司 | High-pressure hydrogenation machine Pull breaking ualve |
| CN113324171B (en) * | 2021-05-20 | 2022-07-12 | 北京航天试验技术研究所 | Hydrogenation gun |
| CN114811414A (en) * | 2022-04-14 | 2022-07-29 | 武汉数字化设计与制造创新中心有限公司 | Automatic hydrogenation machine |
| CN114811415A (en) * | 2022-04-14 | 2022-07-29 | 武汉数字化设计与制造创新中心有限公司 | Automatic end actuating mechanism of hydrogenation |
| CN114738666A (en) * | 2022-05-11 | 2022-07-12 | 四川天成氢洁能源技术有限公司 | Hydrogenation gun |
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| CN107654840A (en) | 2018-02-02 |
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Address after: 610041 No. 3, floor 11, building 6, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan Applicant after: Houpu clean energy (Group) Co.,Ltd. Address before: 610041 No. 3, floor 11, building 6, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan Applicant before: Houpu clean energy Co.,Ltd. Address after: 610041 No. 3, floor 11, building 6, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan Applicant after: Houpu clean energy Co.,Ltd. Address before: 610041 No. 3, floor 11, building 6, No. 599, shijicheng South Road, high tech Zone, Chengdu, Sichuan Applicant before: CHENGDU HUAQI HOUPU HOLDING Co.,Ltd. |
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