CN219367068U - Closed hydrogen-conveying pressure pipeline - Google Patents

Abstract

The utility model relates to a closed hydrogen-conveying pressure pipeline which comprises a hydrogen-conveying pipeline a and a hydrogen-conveying pipeline b, wherein one end of the hydrogen-conveying pipeline a is provided with a flange a, one end of the hydrogen-conveying pipeline b is provided with a flange b, sealing assemblies are arranged on the flange a and the flange b, each sealing assembly comprises a sealing cap, fixing assemblies are arranged on the outer sides of the hydrogen-conveying pipeline a and the hydrogen-conveying pipeline b, each fixing assembly comprises a fixing sleeve, a clamping assembly is connected between each sealing cap and each fixing sleeve, the flange a and the flange b are reinforced and sealed under the cooperation of the sealing assemblies and the clamping assemblies, and the joint of the pipeline is reinforced and sealed by arranging the sealing assemblies and the fixing assemblies, so that the occurrence probability of hydrogen embrittlement is reduced.

Description

Closed hydrogen-conveying pressure pipeline

Technical Field

The utility model relates to the technical field of hydrogen, in particular to a closed hydrogen transmission pressure pipeline.

Background

Hydrogen is a very easy-to-burn gas, colorless, transparent, odorless and insoluble in water, and is a gas with the minimum density known in the world, and can enter into lattices of a plurality of metals to cause a hydrogen embrittlement phenomenon, so that special materials are required to be used for a storage tank and a pipeline of the hydrogen, and the design is more complicated.

At present, in the actual production and transportation process of a pipeline for transporting hydrogen, the sealing performance of the conveying pipeline is not high or a corresponding leakage-proof structure is not designed, so that the hydrogen is leaked and can not be timely detected and maintained, meanwhile, the probability of hydrogen embrittlement is increased, and local leakage is increased.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a closed hydrogen transmission pressure pipeline, which is characterized in that the joint of the pipeline is reinforced and sealed by arranging a sealing component and a fixing component, so that the occurrence probability of hydrogen embrittlement is reduced.

The technical solution of the utility model is as follows:

the utility model provides a closed hydrogen transfer pressure pipeline, includes hydrogen transfer pipeline a, hydrogen transfer pipeline b, hydrogen transfer pipeline a one end is provided with flange a, hydrogen transfer pipeline b one end is provided with flange b, be provided with seal assembly on flange a and the flange b, seal assembly includes the sealing cap, hydrogen transfer pipeline a and hydrogen transfer pipeline b's the outside is provided with fixed subassembly, fixed subassembly includes fixed cover, be connected with the block subassembly between sealing cap and the fixed cover, flange a and flange b consolidate sealedly under seal assembly and the cooperation of block subassembly.

Preferably, the sealing assembly further comprises an attaching plate arranged on the sealing cap and plug boards arranged at two ends of the sealing cap, and the attaching plate is matched with the flange a and the flange b respectively.

Preferably, the fixing assembly further comprises internal threads formed on the inner side of the fixing sleeve, the fixing sleeve is sleeved on the hydrogen conveying pipeline a and the hydrogen conveying pipeline b, and one end of the fixing sleeve is matched with the flange a and the flange b.

Preferably, the fastening component comprises a fastening seat fixedly arranged on the fixing sleeve, and the plugboard is matched with the fastening seat.

Preferably, external threads are arranged on the outer sides of the hydrogen conveying pipeline a and the hydrogen conveying pipeline b, and the external threads and the internal threads are matched.

Preferably, the flange a is provided with a bump, the flange b is provided with a groove, and the bump is matched with the groove.

Preferably, a sealant is arranged on one surface of the fixing sleeve, which is contacted with the flange a and the flange b.

The utility model has the beneficial effects that

The sealing assembly is arranged, the pressing sealing performance of the flange a and the flange is improved through the matching of the protruding blocks and the grooves, the sealing capacity of the pipeline is improved, the leakage of hydrogen is reduced, the contact surface of the bonding plate, which is bonded with the flange a and the flange b, is provided with the sealing gasket, the friction between the bonding plate and the flange a and the flange b is reduced, the sealing performance between the flange a and the flange b is improved, the plug board is matched with the buckling seat, the firmness of the sealing cap on the flange a and the flange b is enhanced, and the sealing performance of the conveying pipeline is further improved.

The fixing assembly and the clamping assembly are arranged, external threads are arranged on the outer sides of the hydrogen conveying pipeline a and the hydrogen conveying pipeline b, and the tightness between the fixing sleeve and the hydrogen conveying pipeline a and between the fixing sleeve and the hydrogen conveying pipeline b is improved in a mode that the external threads and the internal threads are matched, so that the sealing performance of the fixing sleeve on the flange a and the flange b is enhanced, in addition, sealing glue is arranged on the surface, which is contacted with the flange a and the flange b, of the fixing sleeve, the sealing glue has good bonding performance and elasticity, the service life is long, the sealing performance of the flange a and the flange b is improved, and the probability of hydrogen leakage is reduced.

In conclusion, the utility model has the functions of strong sealing performance and leakage prevention, and is suitable for the technical field of hydrogen.

Drawings

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a closed hydrogen pressure pipeline;

FIG. 2 is a schematic view of the structure of an external thread;

FIG. 3 is a schematic view of the seal assembly, the securing assembly and the snap assembly;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a cross-sectional view of a sealant;

Detailed Description

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings.

Example 1

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

As shown in fig. 1 to 4, a closed hydrogen delivery pressure pipeline comprises a hydrogen delivery pipeline a1 and a hydrogen delivery pipeline b2, wherein a flange a3 is arranged at one end of the hydrogen delivery pipeline a1, a flange b4 is arranged at one end of the hydrogen delivery pipeline b2, a sealing component 5 is arranged on the flange a3 and the flange b4, the sealing component 5 comprises a sealing cap 51, a fixing component 6 is arranged on the outer side of the hydrogen delivery pipeline a1 and the hydrogen delivery pipeline b2, the fixing component 6 comprises a fixing sleeve 61, a clamping component 7 is connected between the sealing cap 51 and the fixing sleeve 61, and the flange a3 and the flange b4 are reinforced and sealed under the cooperation of the sealing component 5 and the clamping component 7.

As shown in fig. 3, the sealing assembly 5 further includes a bonding plate 52 disposed on the sealing cap 51, and a plug plate 53 disposed at two ends of the sealing cap 51, where the bonding plate 52 is respectively matched with the flange a3 and the flange b4, and the sealing assembly 5 further increases the tightness of the pipeline to prevent leakage of hydrogen.

As shown in fig. 3, the fixing component 6 further includes an internal thread 62 formed on the inner side of the fixing sleeve 61, the fixing sleeve 61 is sleeved on the hydrogen delivery pipeline a1 and the hydrogen delivery pipeline b2, one end of the fixing sleeve 61 is matched with the flange a3 and the flange b4, and the fixing component 6 is arranged to enable the hydrogen delivery pipeline a1 and the hydrogen delivery pipeline b2 to be tightly attached, so that the safety of hydrogen delivery is improved.

As shown in fig. 3, the locking assembly 7 includes a fastening seat 71 fixedly disposed on the fixing sleeve 61, and the plug board 53 is matched with the fastening seat 71, so as to enhance the firmness of the sealing cap 51 against the flange a3 and the flange b4, and further enhance the tightness of the conveying pipeline.

As shown in fig. 2, external threads 8 are arranged on the outer sides of the hydrogen conveying pipeline a1 and the hydrogen conveying pipeline b2, the external threads 8 are matched with the internal threads 62, and the tightness between the fixing sleeve 61 and the hydrogen conveying pipeline a1 and the tightness between the fixing sleeve 61 and the hydrogen conveying pipeline b2 are improved in a mode that the external threads 8 are matched with the internal threads 62, so that the sealing performance of the fixing sleeve 61 on the flange a3 and the flange b4 are enhanced, and hydrogen leakage is prevented.

As shown in fig. 4, a bump 9 is provided on a flange a3, a groove 10 is provided on a flange b4, the bump 9 is matched with the groove 10, and the flange a3 and the flange b4 are tightly pressed and sealed by the matching of the bump 9 and the groove 10, so that the sealing capability of the joint of the flange a3 and the flange b4 to the pipeline is improved.

As shown in fig. 5, the surface of the fixing sleeve 61, which is in contact with the flange a3 and the flange b4, is provided with sealant 11, and the sealant 11 has good adhesion performance and elasticity, long service life, improves the tightness of the flange a3 and the flange b4, and reduces the probability of hydrogen leakage.

Example two

As shown in fig. 3, wherein the same or corresponding parts as those in the first embodiment are given the same reference numerals as those in the first embodiment, only the points of distinction from the first embodiment will be described below for the sake of brevity; the second embodiment is different from the first embodiment in that: the contact surface of the adhesion plate 52 with the flange a3 and the flange b4 is provided with a gasket.

Here, in the present embodiment, the contact surfaces of the bonding plate 52 with the flange a3 and the flange b4 are provided with the gasket, so that friction with the flange a3 and the flange b4 is reduced, and the sealability between the flange a3 and the flange b4 is improved.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front and rear", "left and right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or component in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

Of course, in this disclosure, those skilled in the art will understand that the term "a" or "an" is to be interpreted as "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, and in another embodiment, the number of elements may be multiple, and the term "a" is not to be construed as limiting the number.

While the utility model has been described with reference to the preferred embodiments, it should be noted that the utility model is not limited to the above embodiments, and that various changes and modifications can be made by those skilled in the art without departing from the structure of the utility model, and these should also be regarded as the scope of the utility model without affecting the effect and practicality of the implementation of the utility model.

Claims (7)

1. The utility model provides a closed hydrogen transfer pressure pipeline, includes hydrogen transfer pipeline a (1), hydrogen transfer pipeline b (2), its characterized in that: the utility model discloses a hydrogen transportation pipeline, including hydrogen transportation pipeline, flange a (3) is provided with to hydrogen transportation pipeline a (1) one end, hydrogen transportation pipeline b (2) one end is provided with flange b (4), be provided with seal assembly (5) on flange a (3) and flange b (4), seal assembly (5) are including sealing cap (51), the outside of hydrogen transportation pipeline a (1) and hydrogen transportation pipeline b (2) is provided with fixed subassembly (6), fixed subassembly (6) are including fixed cover (61), be connected with block subassembly (7) between sealing cap (51) and fixed cover (61), flange a (3) and flange b (4) consolidate sealedly under the cooperation of seal assembly (5) and block subassembly (7).

2. The closed hydrogen transfer pressure pipe according to claim 1, wherein: the sealing assembly (5) further comprises a bonding plate (52) arranged on the sealing cap (51) and plugboards (53) arranged at two ends of the sealing cap (51), and the bonding plate (52) is matched with the flange a (3) and the flange b (4) respectively.

3. The closed hydrogen transfer pressure pipe according to claim 1, wherein: the fixing assembly (6) further comprises an internal thread (62) arranged on the inner side of the fixing sleeve (61), the fixing sleeve (61) is sleeved on the hydrogen conveying pipeline a (1) and the hydrogen conveying pipeline b (2), and one end of the fixing sleeve (61) is matched with the flange a (3) and the flange b (4).

4. The closed hydrogen transfer pressure pipe according to claim 2, wherein: the clamping assembly (7) comprises a buckling seat (71) fixedly arranged on the fixing sleeve (61), and the plug board (53) is matched with the buckling seat (71).

5. The closed hydrogen transfer pressure pipe according to claim 1, wherein: the hydrogen conveying pipeline a (1) and the hydrogen conveying pipeline b (2) are provided with external threads (8) on the outer sides, and the external threads (8) are matched with the internal threads (62).

6. The closed hydrogen transfer pressure pipe according to claim 1, wherein: the flange a (3) is provided with a lug (9), the flange b (4) is provided with a groove (10), and the lug (9) is matched with the groove (10).

7. The closed hydrogen transfer pressure pipe according to claim 1, wherein: and a sealant (11) is arranged on one surface of the fixing sleeve (61) contacted with the flange a (3) and the flange b (4).