CN215744169U - Easily-machined spray nozzle of hydrogen spraying valve - Google Patents
Easily-machined spray nozzle of hydrogen spraying valve Download PDFInfo
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- CN215744169U CN215744169U CN202121922320.4U CN202121922320U CN215744169U CN 215744169 U CN215744169 U CN 215744169U CN 202121922320 U CN202121922320 U CN 202121922320U CN 215744169 U CN215744169 U CN 215744169U
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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
- Y02E60/50—Fuel cells
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Abstract
The utility model discloses an easily-processed hydrogen spraying valve nozzle which comprises a first nozzle connected with a connecting end and a second nozzle connected with the first nozzle, wherein the first nozzle and the second nozzle are both in a truncated cone-shaped structure, and coaxial and communicated air spraying channels are arranged in the first nozzle and the second nozzle; a plurality of annular pressing grooves are formed in the end face, matched with the first nozzle, of the first nozzle, and an annular bulge pressed into the pressing grooves is formed in the upper end portion of the second nozzle; the peripheral surface of the joint of the first nozzle and the second nozzle is in oblique and parallel transition arrangement; this spout hydrogen valve nozzle simple structure, easily production and assembly, this nozzle is under the prerequisite that does not influence the function, changes a nozzle into two nozzle pressure and joins in marriage and form to become ordinary short hole processing with deep hole processing, greatly less the processing cost, improved processingquality.
Description
Technical Field
The utility model relates to the technical field of hydrogen spraying valves, in particular to a hydrogen spraying valve nozzle easy to machine.
Background
The electromagnetic valve is an industrial device controlled by electromagnetism, is an automatic basic element for controlling fluid, belongs to an actuator, and is not limited to hydraulic pressure and pneumatic pressure. A fuel cell is a power generation device that directly converts chemical energy present in a fuel and an oxidant into electrical energy. A gas injection valve and an eductor are used in a hydrogen fuel cell and a nozzle on the gas injection valve is assembled into the eductor for a hydrogen injection operation.
Chinese utility model patent (publication No. CN212717416U) discloses in 2021 a nozzle structure of a hydrogen spray valve for a fuel cell, comprising a housing, wherein a coil, a coil support and an iron core are sequentially arranged in the housing, an armature is arranged in the iron core, an inner nozzle is arranged at the bottom of the iron core, the inner nozzle is arranged in the iron core, the top of the inner nozzle is attached to the bottom of the armature, the bottom edge of the inner nozzle and the bottom edge of the iron core are on the same horizontal line, and the middle position of the inner nozzle is a first through hole; the bottom of the iron core is provided with a first thread. The nozzle structure is connected in a threaded connection mode, and the nozzle can be detached, so that threads need to be tapped during production, and the processing amount is large; in addition, in order to meet the functional requirements of the electromagnetic valve and the ejector, the current nozzle is designed to be longer, so that the length-diameter ratio of a hole is extremely large, the hole is difficult to process, and the cost is high.
Disclosure of Invention
The utility model aims to provide a hydrogen spraying valve nozzle which is easy to process, aiming at the problems in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a hydrogen spraying valve nozzle easy to process comprises a nozzle assembly connected with a hydrogen spraying valve shell, wherein a connecting end is arranged below the hydrogen spraying valve shell, and the lower end part of the connecting end is clamped and connected with the nozzle assembly; the nozzle assembly comprises a first nozzle connected with the connecting end and a second nozzle connected with the first nozzle, the first nozzle and the second nozzle are both in truncated cone-shaped structures, and coaxial and communicated air injection channels are arranged in the first nozzle and the second nozzle; a plurality of annular pressing grooves are formed in the end face, matched with the first nozzle, of the first nozzle, and an annular bulge pressed into the pressing grooves is formed in the upper end portion of the second nozzle; the outer peripheral surface of the joint of the first nozzle and the second nozzle is in oblique and parallel transition arrangement, and the axial length of the body of the second nozzle is smaller than or equal to that of the first nozzle.
The spray nozzle of the hydrogen spraying valve has the advantages of simple structure, easy production and assembly, and good sealing performance and air spraying performance. Under the premise of not influencing functions, the nozzle is formed by changing one nozzle into two nozzles in a press fit mode, so that deep hole machining is changed into ordinary short hole machining, machining cost is greatly reduced, and machining quality is improved.
Although the number of the nozzles of the hydrogen spraying valve is increased, the processing difficulty of a single nozzle is reduced, the whole processing amount is not increased, the processing cost is reduced on the whole, and the segmented drilling plays a role in improving the processing precision and the coaxiality of the air spraying channel.
The first nozzle is used for connecting the connecting end, and the second nozzle extends the whole length; the matching arrangement of the pressing groove and the annular bulge can play a role in clamping and limiting, so that the pressing and fixing of the pressing groove and the annular bulge are facilitated; the coaxial line is arranged, so that the upper air injection channel and the lower air injection channel can be positioned on the same axial line after assembly.
The first nozzle and the second nozzle are both in a truncated cone-shaped structure, so that the appearance of the combined nozzle is also kept in a truncated cone shape with a large upper part and a small lower part, the whole peripheral surface is in smooth transition from top to bottom, and the consistency of the inclination angle of the outer wall is kept. The structure is arranged, the jet valve is assembled into the ejector, a gradually-reduced airflow channel can be formed between the outer periphery of the nozzle and the inner periphery of the ejector, and jet and ejection are facilitated.
Further, the pressing groove is arranged in a circle, the axial depth of the pressing groove is not shorter than the axial height of the annular protrusion and not longer than 1/5 of the axial length of the first nozzle, and the pressing groove and the air injection channel are arranged coaxially.
Usually, the press fit connection of the two can be realized by one circle of the press fit groove, so that the processing amount can be reduced; the axial dimension of the pressing groove is not required to be too large, and the pressing groove can play a connecting role and resist the separation effect of airflow.
The pressing groove is deviated from the air injection channel, and the air injection channel is a cylindrical through hole.
Further, the radial width of the pressing groove is larger than the radial thickness of the annular protrusion, the outer diameter of the pressing groove is not larger than the outer diameter of the annular protrusion, and the inner diameter of the pressing groove is smaller than the inner diameter of the annular protrusion; the annular bulge is clamped in the press fit groove in an interference fit mode, and a gap is formed between the inner periphery of the annular bulge and the press fit groove.
That is to say the interference fit stress surface that the pressure equipment formed is in the protruding outside of annular with the position of pressfitting groove contact, and inboard leaves gapped, such benefit when satisfying the block requirement, avoid being close to the inner wall of jet-propelled passageway department receives pressure to reduce the deformation of inner wall, guarantee jet-propelled passageway's circularity.
Further, the axial length of the first nozzle is the same as that of the body of the second nozzle, and the inclination angle between the outer peripheral surfaces of the first nozzle and the second nozzle and the axis is 5-30 degrees.
Furthermore, the periphery of the upper end of the first nozzle is provided with a step structure, the lower end of the connecting end is provided with an inner step hole, the step structure is clamped in the inner step hole in an interference mode, the periphery of the first nozzle, which is located at the step structure, is provided with a plurality of sealing grooves, and sealing rings are arranged in the sealing grooves.
The step structure is connected with the inner step hole in a press-fitting mode, and the sealing groove and the sealing ring are arranged at the position to achieve a good sealing effect.
Furthermore, the middle part of the upper end face of the first nozzle is also provided with an axial small boss, and the small boss is used for installing a sealing gasket. This arrangement can prevent gas from leaking at the upper end mating face of the first nozzle.
Further, an armature is arranged inside the connecting end and is abutted against the upper end face of the first nozzle, and a sleeve is arranged between the armature and the inner periphery of the connecting end.
Further, a first outer sealing groove is formed in the position, close to the lower end portion, of the periphery of the connecting end, a second outer sealing groove is formed in the position, close to the hydrogen spraying valve shell, of the periphery of the connecting end, and sealing rings are arranged in the first outer sealing groove and the second outer sealing groove; and an air inlet channel is arranged on the connecting end between the first outer sealing groove and the second outer sealing groove.
Due to the arrangement of the double outer sealing grooves, after the connecting end and the nozzle assembly are inserted into the ejector, an excellent sealing effect is achieved, and the gas flowing from the gas inlet channel cannot leak in the vertical direction.
Compared with the prior art, the utility model has the beneficial effects that: 1. the nozzle of the hydrogen spraying valve has simple structure, easy production and assembly, good sealing performance and good air spraying performance; 2. on the premise of not influencing functions, one nozzle is changed into two nozzles to be formed by press fit, so that deep hole machining is changed into common short hole machining, the machining cost is greatly reduced, and the machining quality is improved; 3. the segmented processing holes have a function of improving the processing precision and the coaxiality of the air injection channel; 4. the matching arrangement of the pressing groove and the annular bulge can play a role in clamping and limiting, so that the pressing and fixing of the pressing groove and the annular bulge are facilitated; the coaxial line is arranged, so that the upper air injection channel and the lower air injection channel can be positioned on the same axial line after assembly; 5. the stress surface that the pressure equipment formed is in the bellied outside of annular with the place of pressfitting groove contact, and inboard leaves gapped, such benefit when satisfying the block requirement, avoid being close to the inner wall of jet-propelled passageway department receives pressure to reduce the deformation of inner wall, guarantee jet-propelled passageway's circularity.
Drawings
FIG. 1 is a schematic view of the overall internal structure of a hydrogen injection valve nozzle of the present invention, which is easy to manufacture;
FIG. 2 is a schematic cross-sectional view of a first nozzle of the easy-to-manufacture hydrogen injection valve nozzle of the present invention;
FIG. 3 is a schematic cross-sectional view of a second nozzle of the easy-to-manufacture hydrogen injection valve nozzle of the present invention;
FIG. 4 is a schematic view of the cross-sectional perspective A-A of FIG. 1;
FIG. 5 is a schematic view of the structure of FIG. 2 along direction B;
in the figure: 1. a hydrogen injection valve housing; 2. a connecting end; 201. a first outer seal groove; 202. a second outer seal groove; 203. an air intake passage; 204. an inner step hole; 3. a first nozzle; 301. a pressing groove; 302. a step structure; 303. a sealing groove; 304. a small boss; 4. a second nozzle; 401. an annular projection; 5. an air injection passage; 6. a gap; 7. sealing gaskets; 8. an armature; 9. a sleeve; 10. and (5) sealing rings.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 5, an easily-processed hydrogen injection valve nozzle comprises a nozzle assembly connected with a hydrogen injection valve housing 1, wherein a connecting end 2 is arranged below the hydrogen injection valve housing 1, and the lower end part of the connecting end 2 is clamped and connected with the nozzle assembly; the nozzle assembly comprises a first nozzle 3 connected with the connecting end 2 and a second nozzle 4 connected with the first nozzle 3, the first nozzle 3 and the second nozzle 4 are both in truncated cone structures, and coaxial and communicated air injection channels 5 are arranged in the first nozzle 3 and the second nozzle 4; an annular pressing groove 301 is formed in the end face, matched with the second nozzle 4, of the first nozzle 3, and an annular protrusion 401 pressed into the pressing groove 301 is formed in the upper end portion of the second nozzle 4; the peripheral surface of the joint of the first nozzle 3 and the second nozzle 4 is in oblique and level transition, and the axial length of the body of the second nozzle 4 is equal to that of the first nozzle 3.
Under the premise of not influencing functions, the nozzle is formed by changing one nozzle into two nozzles in a press fit mode, so that deep hole machining is changed into ordinary short hole machining, machining cost is greatly reduced, and machining quality is improved. Although the number of the nozzles is increased, the processing difficulty of a single nozzle is reduced, the whole processing amount is not increased, the processing cost is reduced on the whole, and the sectional drilling plays a role in improving the processing precision and the coaxiality of the air injection channel 5.
The first nozzle 3 is used for connecting the connecting end 2, and the second nozzle 4 is extended by the whole length; the matching arrangement of the pressing groove 301 and the annular bulge 401 can play a role in clamping and limiting, so that the pressing and fixing of the pressing groove and the annular bulge are facilitated; the coaxial line is arranged, so that the upper air injection channel and the lower air injection channel can be positioned on the same axial line after assembly.
The first nozzle 3 and the second nozzle 4 are both in a truncated cone-shaped structure, so that the appearance of the combined nozzle is also kept in a truncated cone shape with a large upper part and a small lower part, the whole peripheral surface is smoothly transited from top to bottom, and the inclination angle of the outer wall is kept consistent. The structure is arranged, the jet valve is assembled into the ejector, a gradually-reduced airflow channel can be formed between the outer periphery of the nozzle and the inner periphery of the ejector, and jet and ejection are facilitated.
Further, the pressing groove 301 is arranged in a circle, the axial depth of the pressing groove 301 is equal to the axial height of the annular protrusion 401, and the pressing groove 301 and the air injection channel 5 are arranged coaxially.
Usually, a circle of the pressing groove 301 can realize the press-fitting connection of the two parts, so that the processing amount can be reduced; the axial dimension of the pressing groove 301 is not too large, and the pressing groove can play a role in connection and resist the separation of air flow.
The pressing groove 301 is deviated to the air injection channel 5, and the air injection channel 5 is a cylindrical through hole.
Further, the radial width of the press-fit groove 301 is slightly larger than the radial thickness of the annular protrusion 401, the outer diameter of the press-fit groove 301 is slightly smaller than the outer diameter of the annular protrusion 401, and the inner diameter of the press-fit groove 301 is smaller than the inner diameter of the annular protrusion 401; the annular protrusion 401 is tightly clamped in the press fit groove 301 in a press fit manner, and a gap 6 is formed between the inner periphery of the annular protrusion 401 and the press fit groove 301.
That is to say, the interference fit stress surface formed by press fitting is at the place where the outer periphery of the annular protrusion 401 contacts with the press-fit groove 301, and the inner side is provided with the smaller gap 6, so that the clamping requirement is met, and meanwhile, the inner wall close to the air injection channel 5 is prevented from being stressed, the deformation of the inner wall is reduced, and the roundness of the air injection channel is ensured.
Further, the inclination angle between the outer peripheral surfaces of the first nozzle 3 and the second nozzle 4 and the axis is 15 degrees.
Further, the periphery of the upper end of the first nozzle 3 is provided with a step structure 302, the lower end of the connecting end 2 is provided with an inner step hole 204, the step structure 302 is clamped in the inner step hole 204 in an interference manner, the periphery of the first nozzle 3 at the step structure 302 is provided with a circle of sealing groove 303, and a sealing ring 10 is arranged in the sealing groove 303.
The step structure 302 and the inner step hole 204 are matched and connected in a press-fitting mode, and the sealing groove 303 and the sealing ring 10 are arranged at the position to achieve a better sealing effect.
Further, the middle part of the upper end surface of the first nozzle 3 is also provided with an axial small boss 304, and the small boss 304 is used for installing a sealing gasket 7. This arrangement can prevent gas from leaking at the upper end mating face of the first nozzle.
Further, an armature 8 is arranged inside the connecting end 2, the armature 8 is abutted to the upper end face of the first nozzle 3, and a sleeve 9 is arranged between the armature 8 and the inner periphery of the connecting end 2.
Further, a first outer sealing groove 201 is formed in the periphery of the connecting end 2 close to the lower end, a second outer sealing groove 202 is formed in the periphery of the connecting end 2 close to the hydrogen injection valve housing 1, and sealing rings 10 are arranged in the first outer sealing groove 201 and the second outer sealing groove 202; an air inlet channel 203 is arranged on the connecting end between the first outer sealing groove 201 and the second outer sealing groove 202.
Due to the arrangement of the double outer sealing grooves, after the connecting end 2 and the nozzle assembly are inserted into the ejector, an excellent sealing effect is achieved, and gas flowing from the gas inlet channel cannot leak out in the vertical direction.
Example two:
this embodiment provides another structure of the pressing groove and the annular protrusion.
The periphery of the pressing groove is also provided with a plurality of radially arranged clamping grooves, and the periphery of the annular bulge is provided with a radial limiting bulge matched with the clamping grooves; when the annular protrusion is clamped into the pressing groove during assembly, the radial limiting protrusion is pressed into the clamping groove along with the annular protrusion; the arrangement enables the second nozzle and the first nozzle to be limited in the circumferential direction, and relative rotation of the second nozzle and the first nozzle can be avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The easy-to-machine hydrogen spraying valve nozzle comprises a nozzle assembly connected with a hydrogen spraying valve shell, and is characterized in that a connecting end is arranged below the hydrogen spraying valve shell, and the lower end part of the connecting end is clamped and connected with the nozzle assembly; the nozzle assembly comprises a first nozzle connected with the connecting end and a second nozzle connected with the first nozzle, the first nozzle and the second nozzle are both in truncated cone-shaped structures, and coaxial and communicated air injection channels are arranged in the first nozzle and the second nozzle; a plurality of annular pressing grooves are formed in the end face, matched with the first nozzle, of the first nozzle, and an annular bulge pressed into the pressing grooves is formed in the upper end portion of the second nozzle; the outer peripheral surface of the joint of the first nozzle and the second nozzle is in oblique and parallel transition arrangement, and the axial length of the body of the second nozzle is smaller than or equal to that of the first nozzle.
2. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein the pressing groove is provided in one turn, has an axial depth not shorter than the axial height of the annular projection and not more than 1/5 of the axial length of the first nozzle, and is also provided coaxially with the gas injection passage.
3. The easy-to-machine hydrogen injection valve nozzle according to claim 1 or 2, wherein a radial width of the press groove is larger than a radial thickness of the annular projection, an outer diameter of the press groove is not larger than an outer diameter of the annular projection, and an inner diameter of the press groove is smaller than an inner diameter of the annular projection; the annular bulge is clamped in the press fit groove in an interference fit mode, and a gap is formed between the inner periphery of the annular bulge and the press fit groove.
4. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein the axial length of the first nozzle is the same as the axial length of the body of the second nozzle, and the inclination angle between the outer peripheral surfaces of the first nozzle and the second nozzle and the axis is 5 to 30 degrees.
5. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein a step structure is provided on an outer periphery of an upper end of the first nozzle, an inner step hole is provided on a lower end of the connecting end, the step structure is engaged with the inner step hole in an interference manner, a plurality of sealing grooves are provided on an outer periphery of the first nozzle at the step structure, and sealing rings are provided in the sealing grooves.
6. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein the middle part of the upper end surface of the first nozzle is further provided with an axial small boss for mounting a sealing gasket.
7. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein an armature is provided inside the connection end, the armature abuts against an upper end surface of the first nozzle, and a sleeve is provided between the armature and an inner periphery of the connection end.
8. The easy-to-machine hydrogen injection valve nozzle according to claim 1, wherein a first outer seal groove is formed in the outer periphery of the connecting end near the lower end portion, a second outer seal groove is formed in the outer periphery of the connecting end near the hydrogen injection valve housing, and seal rings are arranged in the first outer seal groove and the second outer seal groove; and an air inlet channel is arranged on the connecting end between the first outer sealing groove and the second outer sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121922320.4U CN215744169U (en) | 2021-08-17 | 2021-08-17 | Easily-machined spray nozzle of hydrogen spraying valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121922320.4U CN215744169U (en) | 2021-08-17 | 2021-08-17 | Easily-machined spray nozzle of hydrogen spraying valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215744169U true CN215744169U (en) | 2022-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121922320.4U Active CN215744169U (en) | 2021-08-17 | 2021-08-17 | Easily-machined spray nozzle of hydrogen spraying valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215744169U (en) |
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2021
- 2021-08-17 CN CN202121922320.4U patent/CN215744169U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221101 Address after: 201311 buildings 1 and 2, No. 333, Haiyang 1st Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Hurichao Technology Partnership (L.P.) Address before: 215699 Huijin SOHO, 262 Changjing Road, Zhangjiagang, Suzhou, Jiangsu Patentee before: Han Song |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230315 Address after: 201800 room 2201 J, 888 Moyu South Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai Furui Hydrogen New Energy Technology Co.,Ltd. Address before: 201311 buildings 1 and 2, No. 333, Haiyang 1st Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Shanghai Hurichao Technology Partnership (L.P.) |