CN110469729A - A kind of novel clamp sleeve type pipe joint - Google Patents
A kind of novel clamp sleeve type pipe joint Download PDFInfo
- Publication number
- CN110469729A CN110469729A CN201910790605.8A CN201910790605A CN110469729A CN 110469729 A CN110469729 A CN 110469729A CN 201910790605 A CN201910790605 A CN 201910790605A CN 110469729 A CN110469729 A CN 110469729A
- Authority
- CN
- China
- Prior art keywords
- mounting groove
- ring
- type pipe
- sleeve type
- clamp sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000007 visual effect Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims description 28
- 238000004746 piezoluminescence Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000011900 installation process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 241001597008 Nomeidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Chemical class CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000001484 phenothiazinyl group Chemical class C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- JLZUZNKTTIRERF-UHFFFAOYSA-N tetraphenylethylene Chemical class C1=CC=CC=C1C(C=1C=CC=CC=1)=C(C=1C=CC=CC=1)C1=CC=CC=C1 JLZUZNKTTIRERF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/025—Rolling sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a kind of novel clamp sleeve type pipe joints, joint body including coaxial arrangement, truncated cone-shaped snap ring, card cap and the visual angle indicating ring that corresponding indication signal is issued according to the size of pretightning force, the both ends of the inside of the card cap are equipped with interconnected the first mounting groove and the second mounting groove, the diameter of second mounting groove is greater than the diameter of first mounting groove, one end of the joint body is detachably inserted into second mounting groove, the snap ring and the ring that visually indicates are set in second mounting groove, and the ring that visually indicates is resisted against second mounting groove close to the end of first mounting groove, the snap ring is set between the visual angle indicating ring and the joint body, and the lesser one end of its diameter is plugged on the inside of the joint body.Novel clamp sleeve type pipe joint provided by the invention facilitates the pretightning force in detection installation process, facilitates detection residual pre-tightening forces, saves detection time.
Description
Technical field
The present invention relates to pipe joint technical fields, more specifically to a kind of novel clamp sleeve type pipe joint.
Background technique
Hydrogen cell automobile provides electric power by electrochemical reaction by hydrogen-air fuel cell system, and energy source is hydrogen
Gas generallys use 35MPa or 70MPa carbon fiber bottle as hydrogen storage system, hydrogen storage for the mass energy density for improving automobile at present
Pass through 316L not between system and its decompression attachment, overpressure relief attachment, safety detection attachment and hydrogen-air fuel cell system
Rust steel pipe is connected with ferrule-type compression joint.However, traditional ferrule-type compression joint easily occurs a problem that in use
One, the bad control of screw-down torque, due to limited space in field-mounted process, torque wrench inconvenience operation, installation process is more
More experiences by operator, therefore moment values can not quantify.Second, in use, due to vibration, pretightning force release
Etc. reasons cause cutting ferrule connection relaxation, influence sealing effect, in turn result in hydrogen gas leakage, at this moment need all cutting ferrules to pipeline
Connector detects residual pre-tightening forces one by one, but since traditional ferrule-type compression joint detects trouble, causes entire detection process time-consuming
Arduously.
Summary of the invention
In order to overcome the deficiencies of the prior art, the present invention provides a kind of novel clamp sleeve type pipe joint, facilitates detection installation process
In pretightning force, facilitate detection residual pre-tightening forces, save detection time.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of novel clamp sleeve type pipe joint, joint body, truncated cone-shaped snap ring, card cap including coaxial arrangement and according to
The size of pretightning force issues the visual angle indicating ring of corresponding indication signal, and the both ends of the inside of the card cap are equipped with the to be interconnected
One mounting groove and the second mounting groove, the diameter of second mounting groove are greater than the diameter of first mounting groove, the connector sheet
One end of body is detachably inserted into second mounting groove, the snap ring and it is described visually indicate ring be set to it is described
In second mounting groove, and the ring that visually indicates is resisted against second mounting groove close to the end of first mounting groove, institute
It states snap ring to be set between the visual angle indicating ring and the joint body, and the lesser one end of its diameter is plugged on described connect
The inside of head ontology.
2, novel clamp sleeve type pipe joint as described in claim 1, it is characterised in that: the taper of the snap ring is
13-18 degree.
Preferably, the inner surface of one end that the joint body is connect with second mounting groove is inclined-plane.
Preferably, the inner surface of one end that the joint body is connect with second mounting groove and the snap ring
Outer surface is parallel to each other.
Preferably, the outer diameter of the visual angle indicating ring is 1-2 millimeters smaller than the diameter of second mounting groove.
Preferably, retainer ring is coaxially provided between the visual angle indicating ring and the snap ring.
Preferably, the outer diameter of the retainer ring is identical as the diameter of second mounting groove.
Preferably, the material of the visual angle indicating ring is piezochromic material or piezoluminescence material.
Preferably, the joint body is threadedly coupled with second mounting groove.
The beneficial effects of the present invention are: by setting visual angle indicating ring, when installation one end of connecting tube sequentially pass through card cap,
Visual angle indicating ring, snap ring are placed in the inside of joint body, then tightening card cap, and card cap will be squeezed and be regarded during tightening
Indicating ring feedback in angle pre-tightens force information, and operator is measured in real time by the gap between card cap and connecting tube, simple side
Just.When leaking also only need to by the gap observation visual angle indicating ring between card cap and connecting tube feed back information i.e. by
It is the case where each connector residual pre-tightening forces in road, simple and fast, save detection time.The configuration of the present invention is simple, using effect is good, easily
In popularization and use.
Detailed description of the invention
Fig. 1 is the explosive view of novel clamp sleeve type pipe joint of the invention.
Fig. 2 is the cross-sectional view of novel clamp sleeve type pipe joint of the invention.
Fig. 3 is the structure enlargement diagram of A in Fig. 2.
Wherein: 1- joint body, 2- snap ring, 3- card cap, the first mounting groove of 31-, the second mounting groove of 32-, the visual angle 4-
Indicating ring, 5- retainer ring.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Please refer to attached drawing 1-2, a kind of novel clamp sleeve type pipe joint of the present embodiment, joint body 1 including coaxial arrangement,
Truncated cone-shaped snap ring 2, card cap 3 and the visual angle indicating ring 4 that corresponding indication signal is issued according to the size of pretightning force, the card cap
The both ends of 3 inside are equipped with interconnected the first mounting groove 31 and the second mounting groove 32, the diameter of second mounting groove 32
Greater than the diameter of first mounting groove 31, one end of the joint body 1 is detachably inserted into second mounting groove 32
Interior, the snap ring 2 and the ring 4 that visually indicates are set in second mounting groove 32, and the ring 4 that visually indicates supports
Second mounting groove 32 is leaned against close to the end of first mounting groove 31, the snap ring 2 is indicated set on the visual angle
Between ring 4 and the joint body 1, and the lesser one end of its diameter is plugged on the inside of the joint body 1.
Novel clamp sleeve type pipe joint based on above-mentioned technical characteristic, by the way that visual angle indicating ring 4 is arranged, connecting tube when installation
One end sequentially passes through the inside that card cap 3, visual angle indicating ring 4, snap ring 2 are placed in joint body 1, then tightening card cap 3, is twisting
Card cap 3 will squeeze the feedback of visual angle indicating ring 4 and pre-tighten force information in tight process, and operator passes through between card cap 3 and connecting tube
Gap be measured in real time, it is simple and convenient.It also need to only be observed by the gap between card cap 3 and connecting tube when leaking
The case where information that visual angle indicating ring 4 is fed back may know that each connector residual pre-tightening forces, it is simple and fast, save detection time.
The configuration of the present invention is simple, using effect is good, use easy to spread.
In the present embodiment, the taper of the snap ring 2 is 13-18 degree.Preferably, the bus of the snap ring 2 with
The angle of center line is 15 degree.
In the present embodiment, the inner surface of one end that the joint body 1 is connect with second mounting groove 32 is inclined-plane.By
The inside of the joint body 1 is mainly bonded by the outer surface of the snap ring 2 in the sealing of connecting tube, then by tightening
It is deformed when the card cap 3 to the snap ring 2 transmitting axial force, so that the inner surface of snap ring 2 and connecting tube
Surface fitting reaches, so the snap ring 2 and the cooperation of the joint body 1 will produce bigger effect sealing effect.
It is set as inclined-plane by the inner surface of the one end for connecting the joint body 1 with second mounting groove 32, can be made described
The outer surface of snap ring 2 is easier to be bonded the inner surface of the joint body 1.Meanwhile to obtain best sealing effect, institute
The outer surface of the inner surface and the snap ring 2 of stating one end that joint body 1 is connect with second mounting groove 32 should be mutual
In parallel.
In the present embodiment, the diameter of first mounting groove 31 is 0.5-1.5 millimeters bigger than the outer diameter of pipe to be connected, specifically
Difference can suitably be selected according to the outer diameter of pipe to be connected.Since the visual angle indicating ring 4 can produce after by pretightning force
Raw elastic deformation, it is 0.5-1.5 millimeters bigger than the outer diameter of pipe to be connected by being arranged to the diameter of first mounting groove 31,
The part of 4 deformation of visual angle indicating ring will be filled between pipe and first mounting groove 31, therefore operator can be with
By range estimation, the state of clamping sleeve blow-out patch pretightning force is judged, whether enough evaluation pretightning force, whether generating state fails.
In the present embodiment, the outer diameter of the visual angle indicating ring 4 is 1-2 millimeters smaller than the diameter of second mounting groove 32, tool
Body difference can be selected suitably according to the actual situation.By being arranged to the outer diameter for visually indicating 4 outer ring of ring than described second
The diameter of mounting groove 32 is small, visually indicated described in assembling process ring 4 be not subject to while bearing axial compressive force it is larger
Radial pressure, therefore can effectively discharge the inside torsion generated in assembling process, avoid the problem of measurement inaccuracy.
In the present embodiment, retainer ring 5, and the retainer ring are coaxially provided between the visual angle indicating ring 4 and the snap ring 2
5 outer diameter is identical as the diameter of second mounting groove 32.It, can be preferably by the card cap 1 by the way that the retainer ring 5 is arranged
Axial force transmission gives the snap ring 2, guarantees fitting closely for the snap ring 2 and the joint body 1 and connecting tube,
Realize sealing.
In the present embodiment, the material of the visual angle indicating ring 4 is piezochromic material or piezoluminescence material.This two material
It is existing maturing material, piezochromic material can change different colors according to the size of pressure, and can visually be identified；
Piezoluminescence material is substantially change according to the luminescent color of the size material of pressure.Such as a kind of patent document " static pressure
Piezochromic material and preparation method thereof " (application number: CN201910217950.2, publication number: CN109929536A) is i.e. open
A kind of piezochromic material, having under 1atm-10GPa pressure color change interval covering visible light wave band, (blue is to red glimmering
Light 493nm-628nm), it can visually be identified.Such as: it is blue-fluorescence (493nm) under 1atm, becomes green under 4.6GPa
(545nm), 7GPa become yellow (574nm), finally become under 10GPa again red (628nm), and wavelength of fluorescence and static pressure
There is good quantitative relationship.In addition, patent " a kind of piezoluminescence material and preparation method and application " (application number:
CN201811562796.4, publication number: CN109749736A) such a material is disclosed, and explain piezoluminescence
Material, while describing some existing materials, specifically: piezoluminescence be environmental stimuli such as external force (such as mill, pressure,
Scrape etc.), under the effects of heating and solvent are stifling, there is a phenomenon where substantially change for the luminescent color of fluorescent material.Piezoluminescence
Material has broad application prospects in fields such as luminescent device, sensor, detections.At present it has been reported that have piezoluminescence
The material of performance has: anthracene derivant, tetraphenyl ethylene derivative, phenothiazine derivative, anthraquinone derivative and boracic organic matter etc..Institute
With this patent can be according to the change of the material of the visual angle indicating ring 4 made of compacting off-color material or piezoluminescence material
Change the size of pretightning force in accurate judgement installation process.In use process when pretightning force relaxation, caused by piezochromic material or pressure
The visual angle indicating ring 4 made of luminescent material will change colour or the light of sending different colours, and may remind the user that may deposit herein
In leakage phenomenon.
In the present embodiment, the joint body 1 is threadedly coupled with second mounting groove 32.Wherein, the joint body 1
For external screw thread, second mounting groove 32 is internal screw thread.Meanwhile according to actual needs, the joint body 1 can be set in pairs
Claim structure, both ends are all provided with the external screw thread for being set to and connecting with second mounting groove 32, remaining structure is identical as foregoing description, herein
No longer describe.
In addition, providing a specific example to the size selection of each components in the present embodiment.With 1/2 " bite type tube
For connector, the internal diameter of the retainer ring 5 is 14mm, outer diameter selects 15.7mm, the internal diameter for visually indicating ring 4 be 12.8mm,
Outer diameter is 15.7mm, and the diameter of second mounting groove 32 is 14mm.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of novel clamp sleeve type pipe joint, it is characterised in that: joint body, truncated cone-shaped snap ring including coaxial arrangement,
The both ends of card cap and the visual angle indicating ring that corresponding indication signal is issued according to the size of pretightning force, the inside of the card cap are equipped with phase
Intercommunicated the first mounting groove and the second mounting groove, the diameter of second mounting groove are greater than the diameter of first mounting groove,
One end of the joint body is detachably inserted into second mounting groove, the snap ring and described visually indicates ring
It is set in second mounting groove, and the ring that visually indicates is resisted against second mounting groove close to first mounting groove
End, the snap ring be set between the visual angle indicating ring and the joint body, and the lesser one end of its diameter insert
It connects in the inside of the joint body.
2. novel clamp sleeve type pipe joint as described in claim 1, it is characterised in that: the taper of the snap ring is 13-18
Degree.
3. novel clamp sleeve type pipe joint as described in claim 1, it is characterised in that: the joint body and second installation
The inner surface of one end of slot connection is inclined-plane.
4. novel clamp sleeve type pipe joint as claimed in claim 3, it is characterised in that: the joint body and second installation
The outer surface of the inner surface and the snap ring of one end of slot connection is parallel to each other.
5. novel clamp sleeve type pipe joint as described in claim 1, it is characterised in that: described in the outer diameter ratio of the visual angle indicating ring
The diameter of second mounting groove is 1-2 millimeters small.
6. novel clamp sleeve type pipe joint as described in any one in claim 1-5, it is characterised in that: the visual angle indicating ring and institute
It states and is coaxially provided with retainer ring between snap ring.
7. novel clamp sleeve type pipe joint as claimed in claim 6, it is characterised in that: the outer diameter of the retainer ring and second peace
The diameter of tankage is identical.
8. novel clamp sleeve type pipe joint as described in any one in claim 1-5, it is characterised in that: the material of the visual angle indicating ring
Matter is piezochromic material or piezoluminescence material.
9. novel clamp sleeve type pipe joint as described in any one in claim 1-5, it is characterised in that: the joint body with it is described
Second mounting groove is threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790605.8A CN110469729A (en) | 2019-08-26 | 2019-08-26 | A kind of novel clamp sleeve type pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790605.8A CN110469729A (en) | 2019-08-26 | 2019-08-26 | A kind of novel clamp sleeve type pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110469729A true CN110469729A (en) | 2019-11-19 |
Family
ID=68512873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910790605.8A Pending CN110469729A (en) | 2019-08-26 | 2019-08-26 | A kind of novel clamp sleeve type pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469729A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1361372A (en) * | 1972-03-13 | 1974-07-24 | Weatherhead Co | Tube couplings |
| WO1996014534A1 (en) * | 1994-11-03 | 1996-05-17 | Eckhardt Hans Guenter | Detachable connecting or sealing device for transmitting axial tensile forces or hydraulic pressure forces |
| JP2007198542A (en) * | 2006-01-27 | 2007-08-09 | Sekisui Chem Co Ltd | Tube fitting |
| WO2012123501A1 (en) * | 2011-03-14 | 2012-09-20 | Aliaxis R&D S.A.S | Fitting with built-in indicator ring |
| JP2013019445A (en) * | 2011-07-08 | 2013-01-31 | Ito Tekko Kk | Method and device for indicating amount of packing pressure in joint |
| CN103162037A (en) * | 2011-12-12 | 2013-06-19 | Smc株式会社 | Pipe joint |
| CN105865665A (en) * | 2016-03-28 | 2016-08-17 | 北京理工大学 | Method and apparatus for measuring pre-tensioning force of flared fitting |
| CN106090475A (en) * | 2016-08-17 | 2016-11-09 | 江苏海纳机电集团有限公司 | A kind of ferrule-type compression joint |
| CN206816991U (en) * | 2017-05-16 | 2017-12-29 | 上海瀚氢动力科技有限公司 | A kind of sealing structure of coupling |
| CN107614954A (en) * | 2015-03-06 | 2018-01-19 | 世伟洛克公司 | It is used for the system and method for strain detecting in connector |
| CN110114607A (en) * | 2016-11-03 | 2019-08-09 | 迅捷装配有限公司 | Press-in cooperation device, component and method |
| CN210800304U (en) * | 2019-08-26 | 2020-06-19 | 广东国鸿氢能科技有限公司 | Novel cutting sleeve type pipe joint |
-
2019
- 2019-08-26 CN CN201910790605.8A patent/CN110469729A/en active Pending
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|---|---|---|---|---|
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| WO1996014534A1 (en) * | 1994-11-03 | 1996-05-17 | Eckhardt Hans Guenter | Detachable connecting or sealing device for transmitting axial tensile forces or hydraulic pressure forces |
| JP2007198542A (en) * | 2006-01-27 | 2007-08-09 | Sekisui Chem Co Ltd | Tube fitting |
| WO2012123501A1 (en) * | 2011-03-14 | 2012-09-20 | Aliaxis R&D S.A.S | Fitting with built-in indicator ring |
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| CN103162037A (en) * | 2011-12-12 | 2013-06-19 | Smc株式会社 | Pipe joint |
| CN107614954A (en) * | 2015-03-06 | 2018-01-19 | 世伟洛克公司 | It is used for the system and method for strain detecting in connector |
| CN105865665A (en) * | 2016-03-28 | 2016-08-17 | 北京理工大学 | Method and apparatus for measuring pre-tensioning force of flared fitting |
| CN106090475A (en) * | 2016-08-17 | 2016-11-09 | 江苏海纳机电集团有限公司 | A kind of ferrule-type compression joint |
| CN110114607A (en) * | 2016-11-03 | 2019-08-09 | 迅捷装配有限公司 | Press-in cooperation device, component and method |
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|---|
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Address after: 314000 Room 501-2, Building 37, Hangzhou Bay New Economic Park, Port District, Jiaxing City, Zhejiang Province Applicant after: Guohong Hydrogen Energy Technology (Jiaxing) Co.,Ltd. Applicant after: FOSHAN (YUNFU) HYDROGEN ENERGY INDUSTRY AND NEW MATERIALS DEVELOPMENT Research Institute Address before: 510000 No.9, Nanyuan District, Foshan Industrial Transfer Park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Applicant before: Guangdong Guohong Hydrogen Energy Technology Co.,Ltd. Applicant before: FOSHAN (YUNFU) HYDROGEN ENERGY INDUSTRY AND NEW MATERIALS DEVELOPMENT Research Institute Address after: 510000 No.9, Nanyuan District, Foshan Industrial Transfer Park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Applicant after: Guangdong Guohong Hydrogen Energy Technology Co.,Ltd. Applicant after: FOSHAN (YUNFU) HYDROGEN ENERGY INDUSTRY AND NEW MATERIALS DEVELOPMENT Research Institute Address before: No.9, Nanyuan District, Foshan (Yunfu) industrial transfer industrial park, Silao Town, Yuncheng district, Yunfu City, Guangdong Province Applicant before: GUANGDONG SINOSYNERGY HYDROGEN POWER TECHNOLOGY Co.,Ltd. Applicant before: FOSHAN (YUNFU) HYDROGEN ENERGY INDUSTRY AND NEW MATERIALS DEVELOPMENT Research Institute |
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