CN215334955U - Liquid filling opening sealing structure of hydrogen production system - Google Patents
Liquid filling opening sealing structure of hydrogen production system Download PDFInfo
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- CN215334955U CN215334955U CN202121994473.XU CN202121994473U CN215334955U CN 215334955 U CN215334955 U CN 215334955U CN 202121994473 U CN202121994473 U CN 202121994473U CN 215334955 U CN215334955 U CN 215334955U
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- filling opening
- sealing structure
- conical surface
- hydrogen production
- production system
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Abstract
The utility model belongs to the technical field of hydrogen energy, and particularly relates to a liquid filling port sealing structure of a hydrogen production system. Compared with the prior art, the utility model has double sealing structures, namely a conical surface sealing structure and a thread sealing structure, so that the sealing performance of the liquid filling opening is greatly improved, external air cannot enter the hydrogen production system through the liquid filling opening, the hydrogen production efficiency and yield are ensured, and the safety performance of the hydrogen production system is ensured.
Description
Technical Field
The utility model belongs to the technical field of hydrogen energy, and particularly relates to a liquid filling port sealing structure of a hydrogen production system.
Background
Hydrogen is an important industrial product and is widely applied to the fields of petroleum, chemical industry, building materials, metallurgy, electronics, medicine and the like. In recent years, hydrogen has also been attempted to be used in the automotive field, for example, hydrogen is used in a hydrogen stack of a hydrogen energy automobile; for another example, hydrogen is also used in soot removal processes for automobile engines to burn off soot by increasing combustion efficiency through hydrogenation. In addition, hydrogen is also used in the field of food preservation of grains, vegetables, fruits and the like, and the hydrogen can lock water, reduce metabolism and consume oxygen, so that the effects of prolonging the quality guarantee period of food and guaranteeing the quality of the food are achieved.
The preparation method of hydrogen has various methods, such as a water electrolysis hydrogen production process, a coal gas separation hydrogen production process, a methanol hydrogen production process and the like, wherein the methanol hydrogen production process becomes the mainstream hydrogen production process at present due to the advantages of low cost, convenient production, safety and the like. The main process of the process comprises the following steps: liquid methanol is added into a hydrogen production system from a liquid adding port, and the mixture of the methanol and the water vapor completes conversion reaction under the action of a catalyst to generate hydrogen and carbon dioxide. After the methanol liquid is added, the liquid adding opening needs to be sealed, so that gases such as oxygen and the like are prevented from entering the system to influence the reaction.
However, the existing sealing structure of the liquid filling opening only adopts simple thread sealing, namely, an end cap with threads is arranged in the liquid filling opening, threads are arranged on the inner wall of the liquid filling opening, and the threads of the end cap and the threads of the liquid filling opening are used for realizing thread sealing. Although this structure can provide a certain sealing effect, it cannot achieve a good sealing effect.
In view of this, the present invention is directed to provide a sealing structure for a filling opening of a hydrogen production system, which greatly improves the sealing performance of the filling opening by double sealing of thread sealing and conical surface sealing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at the defects of the prior art, the sealing structure of the liquid filling opening of the hydrogen production system is provided, and the sealing performance of the liquid filling opening is greatly improved through double sealing of thread sealing and conical surface sealing.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a filling opening seal structure of hydrogen generation system, includes filling opening body and bolt, the filling opening body with be formed with conical surface seal structure and thread seal structure between the bolt.
As an improvement of the liquid filling opening sealing structure of the hydrogen production system, the conical surface sealing structure is formed by mutually attaching the conical surface of the bolt and the conical surface of the liquid filling opening body.
As an improvement of the sealing structure of the filling opening of the hydrogen production system, the thread sealing structure comprises an external thread of the bolt and an internal thread of the filling opening body, and the internal thread is matched with the external thread.
As an improvement of the sealing structure of the liquid filling opening of the hydrogen production system, the conical surface sealing structure is positioned above the thread sealing structure.
As an improvement of the sealing structure of the liquid filling opening of the hydrogen production system, the liquid filling opening body comprises a side wall, a first inclined conical surface part, a first threaded part and a liquid filling opening from top to bottom, one end of the first inclined conical surface part is connected with the lower end of the side wall, the other end of the first inclined conical surface part is connected with the upper end of the first threaded part, and the liquid filling opening is arranged at the bottom of the liquid filling opening body.
As an improvement of the sealing structure of the filling opening of the hydrogen production system, the upper end of the side wall extends to the central part of the filling opening body to form a flange.
As an improvement of the sealing structure of the liquid filling opening of the hydrogen production system, the inclination angle of the upper end surface of the first inclined conical surface part is 3-30 degrees.
As an improvement of the sealing structure of the liquid filling opening of the hydrogen production system, the bolt comprises a main body part, a second inclined conical surface part and a second thread part which are sequentially connected from top to bottom, the second inclined conical surface part is attached to the first inclined conical surface part, and the second thread part is matched with the first thread part.
As an improvement of the sealing structure of the liquid filling opening of the hydrogen production system, the main body part comprises a head part and a connecting part, the upper end of the connecting part is connected with the head part, and the lower end of the connecting part is connected with the second inclined conical surface part.
As an improvement of the sealing structure of the filling opening of the hydrogen production system, the size of the second threaded part is larger than that of the filling opening.
Compared with the prior art, the utility model has double sealing structures, namely a conical surface sealing structure and a thread sealing structure, so that the sealing performance of the liquid filling opening is greatly improved, external air cannot enter the hydrogen production system through the liquid filling opening, the hydrogen production efficiency and yield are ensured, and the safety performance of the hydrogen production system is ensured.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
FIG. 2 is an exploded view of the present invention.
FIG. 3 is a second exploded view of the present invention.
Fig. 4 is a schematic structural view of the bolt of the present invention.
Fig. 5 is a schematic structural view of a filler neck body according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1-5, the utility model provides a filling opening sealing structure of a hydrogen production system, which comprises a filling opening body 1 and a bolt 2, wherein a conical surface sealing structure 3 and a thread sealing structure 4 are formed between the filling opening body 1 and the bolt 2.
Wherein, the conical surface sealing structure 3 is formed by mutually attaching the conical surface of the bolt 2 and the conical surface of the filling opening body 1. The thread sealing structure 4 comprises an external thread of the bolt 2 and an internal thread of the filling opening body 1, and the internal thread and the external thread are matched with each other. The conical surface sealing structure 3 is positioned above the thread sealing structure 4, so that double sealing is formed, and the sealing performance and the sealing effect are improved.
From last to down, filler opening body 1 includes lateral wall 11, first slope conical surface portion 12, first screw thread portion 13 and filler opening 14, and the one end of first slope conical surface portion 12 is connected with the lower extreme of lateral wall 11, and the other end of first slope conical surface portion 12 is connected with the upper end of first screw thread portion 13, and filler opening 14 sets up in the bottom of filler opening body 1.
The upper end of the side wall 11 is formed with a flange 15 extending toward the central portion of the filler neck body 1 for preventing methanol poured into the filler neck body 1 from overflowing from the edge thereof.
The upper end surface of first inclined conical surface portion 12 has an inclination angle of 3 ° to 30 °, and this inclined conical surface portion facilitates the flow of methanol into charging port 14.
From last to down, bolt 2 is including main part 21, second slope conical surface portion 22 and the second screw portion 23 that connects gradually, and second slope conical surface portion 22 is laminated mutually with first slope conical surface portion 12, and second screw 23 and first screw portion 13 phase-match.
The main body 21 includes a head portion 211 and a connecting portion 212, an upper end of the connecting portion 212 is connected to the head portion 211, and a lower end of the connecting portion 212 is connected to the second inclined tapered surface portion 22. In this embodiment, the size of the head portion 211 is larger than that of the connecting portion 212, and the size of the connecting portion 212 is larger than that of the second threaded portion 23, so that the bolt screwing operation is facilitated.
Second threaded portion 23 is larger in size than fill port 14, so that the double seal structure can seal fill port 14 and prevent air from entering the hydrogen production system from fill port 14. When liquid needs to be added, only the bolt 2 needs to be removed, and the methanol enters the hydrogen production system from the liquid adding port 14.
In a word, the utility model has double sealing structures, namely the conical surface sealing structure 3 and the thread sealing structure 4, thereby greatly improving the sealing performance of the liquid filling opening, ensuring that outside air can not enter the hydrogen production system through the liquid filling opening, ensuring the efficiency and the yield of hydrogen production and ensuring the safety performance of the hydrogen production system.
It should be noted that, although the structure of the filling opening of the hydrogen production system is described and illustrated, the filling opening is also applicable to other occasions and fields requiring filling. Besides the field of hydrogen production, the utility model is also applicable to other fields, and the utility model belongs to the protection scope of the utility model as long as the structure of the liquid adding opening falls into the protection scope of the utility model.
Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The utility model provides a filling opening seal structure of hydrogen system which characterized in that: the filling opening comprises a filling opening body and a bolt, wherein a conical surface sealing structure and a thread sealing structure are formed between the filling opening body and the bolt.
2. The filling opening sealing structure of the hydrogen production system according to claim 1, characterized in that: the conical surface sealing structure is formed by mutually attaching the conical surface of the bolt and the conical surface of the filling opening body.
3. The filling opening sealing structure of the hydrogen production system according to claim 1, characterized in that: the thread sealing structure comprises an external thread of the bolt and an internal thread of the filling opening body, and the internal thread is matched with the external thread.
4. The filling opening sealing structure of the hydrogen production system according to claim 1, characterized in that: the conical surface sealing structure is positioned above the thread sealing structure.
5. The filling opening sealing structure of the hydrogen production system according to claim 1, characterized in that: from last to down, the filler opening body includes lateral wall, first slope conical surface portion, first screw thread portion and filler opening, the one end of first slope conical surface portion with the lower extreme of lateral wall is connected, the other end of first slope conical surface portion with the upper end of first screw thread portion is connected, the filler opening set up in the bottom of filler opening body.
6. The filling opening sealing structure of the hydrogen production system according to claim 5, characterized in that: the upper end of the side wall extends to the central part of the filler opening body to form a flange.
7. The filling opening sealing structure of the hydrogen production system according to claim 5, characterized in that: the inclination angle of the upper end face of the first inclined conical surface part is 3-30 degrees.
8. The filling opening sealing structure of the hydrogen production system according to claim 5, characterized in that: from last to down, the bolt is including main part, second slope conical surface portion and the second screw thread portion that connects gradually, the second slope conical surface portion with laminating of first slope conical surface portion, second screw thread portion with first screw thread portion phase-match.
9. The filling opening sealing structure of the hydrogen production system according to claim 8, characterized in that: the main body part comprises a head part and a connecting part, the upper end of the connecting part is connected with the head part, and the lower end of the connecting part is connected with the second inclined conical surface part.
10. The filling opening sealing structure of the hydrogen production system according to claim 8, characterized in that: the size of the second thread part is larger than that of the liquid filling opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994473.XU CN215334955U (en) | 2021-08-24 | 2021-08-24 | Liquid filling opening sealing structure of hydrogen production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994473.XU CN215334955U (en) | 2021-08-24 | 2021-08-24 | Liquid filling opening sealing structure of hydrogen production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334955U true CN215334955U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121994473.XU Active CN215334955U (en) | 2021-08-24 | 2021-08-24 | Liquid filling opening sealing structure of hydrogen production system |
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| Country | Link |
|---|---|
| CN (1) | CN215334955U (en) |
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2021
- 2021-08-24 CN CN202121994473.XU patent/CN215334955U/en active Active
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