Liquid hydrogen hydrogenation gun holder

Abstract

The application provides a liquid hydrogen hydrogenation gun seat, which comprises a seat bottom plate and a scraping structure, wherein the seat bottom plate is provided with a supporting cylinder for supporting a hydrogenation gun, and the scraping structure is arranged on the inner side of the supporting cylinder and is configured to scrape frost on the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun during the process of inserting the liquid hydrogen hydrogenation gun into the seat.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of liquid hydrogen filling, and particularly relates to a liquid hydrogen filling gun seat. BACKGROUND

[0002] With the development of new energy in the country, hydrogen energy as a clean energy is highly concerned. Liquid hydrogen has the advantages of low pressure, easy transportation and high energy density compared with high-pressure hydrogen gas. The advantages of liquid hydrogen in preparation, storage and transportation are more suitable for the large-scale and commercial supply of hydrogen energy, which can effectively control the comprehensive cost, and the transportation process does not involve complex unsafe factors.

[0003] The storage and transportation cost of liquid hydrogen is low, the vaporization purity is high, the storage and transportation pressure is low, and the safety in use is high. These characteristics make liquid hydrogen have a significant advantage in comprehensive cost, especially in large-scale and commercial applications.

[0004] The liquid hydrogen filling gun is a key component for connecting the liquid hydrogen filling station and the liquid hydrogen storage and transportation system. It needs to be in contact with low-temperature medium and normal-temperature air alternately at a high frequency, which can easily cause the water vapor in the normal-temperature air to frost and freeze on the surface of the liquid hydrogen filling gun. This will undoubtedly seriously affect the liquid hydrogen filling and operation of the next vehicle-mounted liquid hydrogen system.

[0005] Therefore, the present application is proposed. SUMMARY

[0006] The technical problem to be solved by the present application is to at least overcome some of the deficiencies of the prior art, and to provide a liquid hydrogen filling gun seat. By providing a scraping structure on the inner side of the support cylinder for supporting the filling gun, which can scrape off the ice and frost on the outer wall of the filling pipe of the filling gun during the insertion of the filling gun into the seat, the ice and frost on the outer wall of the filling pipe of the filling gun can be prevented from affecting the normal filling of liquid hydrogen.

[0007] To solve the above technical problems, the basic idea of the technical solution of the present application is:

[0008] A liquid hydrogen filling gun seat, comprising:

[0009] A seat bottom plate, the seat bottom plate is provided with a support cylinder for supporting the filling gun;

[0010] A scraping structure is arranged on the inner side of the support cylinder, and the scraping structure is configured to scrape off the ice and frost on the outer wall of the filling pipe of the liquid hydrogen filling gun during the insertion of the liquid hydrogen filling gun into the seat.

[0011] In some embodiments, the scraping structure is a ring-shaped scraper, and the ring-shaped scraper is arranged at the cylinder opening of the support cylinder.

[0012] In some embodiments, the ring-shaped scraper is made of a non-metallic material.

[0013] In some embodiments, the liquid hydrogen hydrogenation gun seat further comprises:

[0014] a guide cylinder, which is sleeved outside the support cylinder, forms a containing space for containing the body of the liquid hydrogen hydrogenation gun between the support cylinder, and the bottom of the guide cylinder is sealingly connected with the seat bottom plate;

[0015] a sealing structure, which is arranged on the inner side wall of the guide cylinder and / or the outer side wall of the support cylinder, is configured to be in interference abutment with the body of the liquid hydrogen hydrogenation gun during insertion of the liquid hydrogen hydrogenation gun into the seat, and prevents water vapor from contacting the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun.

[0016] In some embodiments, the sealing structure is a sealing ring arranged on the inner side wall of the guide cylinder and / or the outer side wall of the support cylinder close to the seat bottom plate.

[0017] In some embodiments, the seat bottom plate is provided with a purge gas outlet, which is configured to be connected to a purge gas source.

[0018] The purge gas outlet is in communication with the inside of the support cylinder, and is used for post-filling purge and / or pre-filling purge of the filling pipe of the liquid hydrogen hydrogenation gun.

[0019] In some embodiments, the liquid hydrogen hydrogenation gun seat further comprises:

[0020] a distance detector, which is arranged on the seat bottom plate and / or the support cylinder, is used for detecting whether the hydrogenation machine is placed in place;

[0021] a controller, which is connected with the distance detector and the purge gas outlet, is configured to control the purge gas outlet to be turned on after it is determined according to the detection result of the distance detector that the hydrogenation machine is placed in place.

[0022] In some embodiments, the liquid hydrogen hydrogenation gun seat further comprises:

[0023] a rewarming device, which is configured to rewarm the filling pipe of the liquid hydrogen hydrogenation gun.

[0024] In some embodiments, the seat bottom plate and / or the support cylinder is provided with an embedded recess;

[0025] The rewarming device comprises a heater embedded in the embedded recess, and the heater conducts heat to the inside of the support cylinder after the temperature of the heater is raised.

[0026] In some embodiments, the side wall of the embedded recess is provided with an insulating layer.

[0027] Compared with the prior art, the present application has the following beneficial effects.

[0028] 1、The liquid hydrogen hydrogenation gun seat provided by the present application can prevent frost from adhering to the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun and affecting normal filling of liquid hydrogen, by arranging a scraping structure on the inner side of the support cylinder for supporting the hydrogenation gun, which can scrape off the frost on the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun during insertion of the liquid hydrogen hydrogenation gun into the seat.

[0029] 2、The liquid hydrogen hydrogenation gun seat provided by the present application can prevent water vapor from contacting the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun, thereby preventing the secondary formation of frost on the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun, by arranging a sealing structure on the inner side wall of the guide cylinder and / or the outer side wall of the support cylinder, which can interfere with the body of the liquid hydrogen hydrogenation gun during insertion of the liquid hydrogen hydrogenation gun into the seat.

[0030] 3、The liquid hydrogen hydrogenation gun seat provided by the present application can prevent impurities from entering the filling pipe of the liquid hydrogen hydrogenation gun and improve the safety of the liquid hydrogen hydrogenation system, by arranging a purge gas inlet and outlet on the seat bottom plate, which is in communication with the inside of the support cylinder, for post-filling purge and / or pre-filling purge of the filling pipe of the liquid hydrogen hydrogenation gun.

[0031] 4、The liquid hydrogen hydrogenation gun seat provided by the present application can reheat the filling pipe of the liquid hydrogen hydrogenation gun, facilitating the next liquid hydrogen filling, by arranging a reheat device.

[0032] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings are part of the present application and serve to provide a further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0034] Figure 1 is a structural schematic diagram of a liquid hydrogen hydrogenation gun seat according to an exemplary embodiment of the present application;

[0035] Figure 2 is a cross-sectional structural schematic diagram of a liquid hydrogen hydrogenation gun seat according to an exemplary embodiment of the present application;

[0036] Figure 3 is a partial bottom view structural schematic diagram of a liquid hydrogen hydrogenation gun seat according to an exemplary embodiment of the present application;

[0037] Figure 4It is a partial cross-sectional structural schematic diagram of a liquid hydrogen refueling gun provided according to an exemplary embodiment of the present invention after being placed in place in a gun seat.

[0038] In the figure: 100, liquid hydrogen refueling gun; 110, gun body; 120, filling pipe; 130, sealing layer;

[0039] 200. Gun mount; 201. Gun mount base plate; 202. Scraping structure; 203. Support tube; 204. Mounting hole; 205. Guide tube; 206. Sealing structure; 207. Purge gas inlet and outlet; 208. Connecting channel; 209. Distance detector; 210. Rewarming device; 211. Embedded groove; 212. Insulation layer.

[0040] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] As introduced in the background, the liquid hydrogen hydrogenation gun in the prior art has a low temperature after filling, close to the liquid hydrogen temperature zone, and contacts normal temperature air after being pulled out from the filling port of the vehicle-mounted liquid hydrogen system. Water vapor in the air is easy to frost and freeze on the surface of the liquid hydrogen hydrogenation gun, affecting the liquid hydrogen filling and operation of the next vehicle-mounted liquid hydrogen system. Based on this, the application provides a liquid hydrogen hydrogenation gun seat, which comprises a seat bottom plate and a scraping structure, wherein the seat bottom plate is provided with a supporting cylinder for supporting the hydrogenation gun, and the scraping structure is arranged on the inner side of the supporting cylinder. The scraping structure is configured to scrape the frost on the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun during the insertion of the liquid hydrogen hydrogenation gun into the seat. In this way, the frost on the outer wall of the filling pipe of the liquid hydrogen hydrogenation gun can be prevented from affecting the normal filling of liquid hydrogen.

[0045] Reference will be made to the accompanying drawings Figure 1 to the accompanying drawings Figure 4 The preferred technical solutions of the liquid hydrogen hydrogenation gun seat 200 provided by the application are introduced.

[0046] Figure 1 is a structural schematic diagram of the liquid hydrogen hydrogenation gun seat 200 according to an exemplary embodiment of the application; Figure 2 is a sectional structural schematic diagram of the liquid hydrogen hydrogenation gun seat 200 according to an exemplary embodiment of the application; Figure 3 is a partial bottom view structural schematic diagram of the liquid hydrogen hydrogenation gun seat 200 according to an exemplary embodiment of the application; Figure 4 is a partial sectional structural schematic diagram of the liquid hydrogen hydrogenation gun 100 after being placed in place in the seat 200 according to an exemplary embodiment of the application.

[0047] It should be noted that reference Figure 4 is shown, the liquid hydrogen hydrogenation gun seat 200 is a structure for placing the liquid hydrogen hydrogenation gun 100 in the hydrogenation gap. The liquid hydrogen hydrogenation gun 100 comprises a gun body 110 and a filling pipe 120 arranged in the gun body 110, the inner side of the gun body 110 is provided with a sealing layer 130, and the filling pipe 120 is connected to a liquid hydrogen source.

[0048] As Figures 1 to 4 shown, the liquid hydrogen hydrogenation gun seat 200 comprises a seat bottom plate 201 and a scraping structure 202, the seat bottom plate 201 is provided with a supporting cylinder 203 for supporting the hydrogenation gun, and the scraping structure 202 is arranged on the inner side of the supporting cylinder 203. The scraping structure 202 is configured to scrape the frost on the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation gun 100 during the insertion of the liquid hydrogen hydrogenation gun 100 into the seat 200.

[0049] Specifically, when the vehicle-mounted liquid hydrogen system needs to be hydrogenated, the operator removes the liquid hydrogen hydrogenation gun 100 from the gun seat for hydrogenation. After the hydrogenation is completed, the operator places the liquid hydrogen hydrogenation gun 100 on the gun seat, wherein the gap between the gun body 110 and the filling pipe 120 is sleeved on the support cylinder 203 so that the filling pipe 120 is located inside the support cylinder 203. Then, during the process of inserting the liquid hydrogen hydrogenation gun 100 into the gun seat 200, the ice and frost on the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation gun 100 can be scraped off by the scraping structure 202.

[0050] In the specific implementation process, referring to Figure 1 As shown in the figure, the gun seat bottom plate 201 is provided with a mounting hole 204, and the gun seat bottom plate 201 is fixed in the liquid hydrogen filling station by fasteners. Alternatively, the bottom of the support cylinder 203 is welded on the gun seat bottom plate 201, or the support cylinder 203 is integrally formed with the gun seat bottom plate 201.

[0051] In some embodiments, the scraping structure 202 is a ring-shaped scraper, which is arranged at the cylinder opening of the support cylinder 203. In this way, the contact distance of the ring-shaped scraper with the filling pipe 120 of the liquid hydrogen hydrogenation gun 100 can be extended, which is conducive to improving the scraping effect of the ice and frost on the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation gun 100. In addition, arranging the ring-shaped scraper at the cylinder opening of the support cylinder 203 also facilitates the cleaning and replacement of the ring-shaped scraper and other maintenance work.

[0052] Further, the cylinder opening of the support cylinder 203 is provided with a ring-shaped avoiding groove, and the ring-shaped scraper is clamped in the ring-shaped avoiding groove to realize the fixation of the ring-shaped scraper.

[0053] As an example, the ring-shaped scraper is made of non-metallic materials such as rubber, silica gel or plastic, which can prevent scratching the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation gun 100 during the scraping of the ice and frost, affecting the sealing between the filling pipe 120 of the liquid hydrogen hydrogenation gun 100 and the filling port of the vehicle-mounted liquid hydrogen system, and causing potential safety hazards.

[0054] In some embodiments, the liquid hydrogen hydrogenation gun gun seat 200 further comprises a guide cylinder 205, which is sleeved outside the support cylinder 203, forms a containing space with the support cylinder 203 for containing the gun body 110 of the liquid hydrogen hydrogenation gun 100, and the bottom of the guide cylinder 205 is sealingly connected with the gun seat bottom plate 201; the inner side wall of the guide cylinder 205 and / or the outer side wall of the support cylinder 203 is provided with a sealing structure 206, which is configured to abut against the gun body 110 of the liquid hydrogen hydrogenation gun 100 during the process of inserting the liquid hydrogen hydrogenation gun 100 into the gun seat 200, preventing water vapor from contacting the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation gun 100.

[0055] Specifically, the guide cylinder 205 is arranged on the outer side of the support cylinder 203, which can prevent the liquid hydrogen hydrogenation lance 100 from tilting after being placed on the lance seat. Referring to Figure 4 When the operator places the liquid hydrogen hydrogenation lance 100 on the lance seat, the sealing structure 206 is in interference abutment with the inner side wall of the guide cylinder 205 and the outer side wall of the lance body 110, and / or the sealing structure 206 is in interference abutment with the sealing layer 130 of the lance body 110 and the outer side wall of the support cylinder 203.

[0056] It can be seen that the sealing structure 206 arranged on the inner side wall of the guide cylinder 205 and / or the outer side wall of the support cylinder 203 can prevent water vapor from entering the inside of the support cylinder 203 through the gap between the guide cylinder 205 and the lance body 110 or the gap between the lance body 110 and the support cylinder 203 to contact the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation lance 100. Since the filling pipe 120 just completed filling has a low temperature, preventing water vapor from entering the inside of the support cylinder 203 through the gap between the guide cylinder 205 and the lance body 110 or the gap between the lance body 110 and the support cylinder 203 to contact the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation lance 100 can prevent the formation of ice on the outer wall of the filling pipe 120 of the liquid hydrogen hydrogenation lance 100.

[0057] For example, the sealing structure 206 is a sealing ring arranged on the inner side wall of the guide cylinder 205 and / or the outer side wall of the support cylinder 203 near the lance seat bottom plate 201. Further, the inner side wall of the guide cylinder 205 and / or the outer side wall of the support cylinder 203 is provided with an annular groove, and the sealing ring is clamped in the annular groove to fix the sealing ring.

[0058] In some embodiments, the lance seat bottom plate 201 is provided with a purge gas outlet 207, which is configured to be connected to a purge gas source; the purge gas outlet 207 is in communication with the inside of the support cylinder 203, and is used for post-filling purge and / or pre-filling purge of the filling pipe 120 of the liquid hydrogen hydrogenation lance 100.

[0059] In the above scheme, by arranging the purge gas outlet 207 on the lance seat bottom plate 201, which is in communication with the inside of the support cylinder 203, for post-filling purge and / or pre-filling purge of the filling pipe 120 of the liquid hydrogen hydrogenation lance 100, the unwanted gas and other impurities are excluded from the filling pipe 120, preventing impurities from entering the filling pipe 120 of the liquid hydrogen hydrogenation lance 100, and improving the safety of the liquid hydrogen hydrogenation system.

[0060] For example, referring to Figure 3 As shown in the figure, a plurality of groups of purge gas outlets 207 are arranged circumferentially on the lance seat bottom plate 201, and the purge gas source can be pure nitrogen or inert gas such as helium.

[0061] It needs to be explained that when the part of the gun seat bottom plate 201 corresponding to the internal space of the support cylinder 203 has other structures interfering with the purge gas outlet 207, the purge gas outlet 207 can be arranged on the part of the gun seat bottom plate 201 corresponding to the support cylinder 203, and a communication channel 208 is formed in the support cylinder 203 to communicate the purge gas outlet 207 and the internal space of the support cylinder 203. Please refer to Figure 2 .

[0062] Further, the liquid hydrogen hydrogenation gun gun seat 200 further comprises a distance detector 209 and a controller, the distance detector 209 is arranged on the gun seat bottom plate 201 and / or the support cylinder 203, and is used to detect whether the hydrogenation machine is placed in place; the controller is connected with the distance detector 209 and the purge gas outlet 207, and the controller is configured to control the purge gas outlet 207 to be conducted after it is determined that the hydrogenation machine is placed in place according to the detection result of the distance detector 209.

[0063] Specifically, after the liquid hydrogen hydrogenation gun 100 is placed in place on the gun seat, the distance detector 209 detects the liquid hydrogen hydrogenation gun 100, generates a signal feedback to the controller, and the controller controls the gas distribution platform to introduce pure nitrogen into the purge gas outlet 207 for post-filling and / or pre-filling purging.

[0064] It needs to be pointed out that the above-mentioned controller can also directly use the control platform of the hydrogenation machine / hydrogenation station, and the time for the controller to control the gas distribution platform to introduce pure nitrogen into the purge gas outlet 207 can be adjusted according to different working conditions, which is not limited by the present application.

[0065] As an example, the distance detector 209 uses an infrared sensor or a laser sensor.

[0066] In some embodiments, as shown in Figures 2 to 4 , the liquid hydrogen hydrogenation gun gun seat 200 further comprises a rewarming device 210, and the rewarming device 210 is configured to rewarm the filling pipe 120 of the liquid hydrogen hydrogenation gun 100, facilitating the next liquid hydrogen filling.

[0067] In detail, the gun seat bottom plate 201 and / or the support cylinder 203 is provided with an embedded groove 211; wherein the rewarming device 210 comprises a heater embedded in the embedded groove 211, and the heater conducts heat to the inside of the support cylinder 203 after the temperature of the heater is raised.

[0068] As an example, the heater uses a resistance wire. Further, an insulating layer 212 is arranged on the side wall of the embedded groove 211 to prevent electric leakage.

[0069] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any skilled person in the art can make some changes or modifications to the above-mentioned technical content with the above-mentioned prompt as equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. A liquid hydrogenation gun base, characterized in that: include: A gun base bottom plate, wherein a support cylinder for supporting the liquid hydrogen refueling gun is provided on the gun base bottom plate; a scraping structure disposed on the inner side of the support tube, the scraping structure being an annular scraper disposed at the tube mouth of the support tube, the scraping structure being configured to scrape off frost on the outer wall of the filling pipe of the liquid hydrogen refueling gun during the process of inserting the liquid hydrogen refueling gun into the gun seat; A guide cylinder, wherein the guide cylinder is sleeved on the outside of the support cylinder, and an accommodating space for accommodating the gun body of the liquid hydrogen hydrogenation gun is formed between the guide cylinder and the support cylinder, and the bottom of the guide cylinder is sealed with the bottom plate of the gun base; A sealing structure is provided on the inner side wall of the guide cylinder and / or the outer side wall of the support cylinder. The sealing structure is configured to come into interference contact with the gun body of the liquid hydrogen refueling gun during the process of inserting the liquid hydrogen refueling gun into the gun seat, thereby preventing water vapor from contacting the outer wall of the filling pipe of the liquid hydrogen refueling gun. The sealing structure is a sealing ring provided on the inner side wall of the guide cylinder and / or the outer side wall of the support cylinder near the bottom plate of the gun seat.

2. The liquid hydrogenation gun base according to claim 1, characterized in that: The annular scraper is made of non-metallic material.

3. The liquid hydrogenation gun base according to claim 1 or 2, characterized in that: The gun base bottom plate is provided with a purge gas inlet and outlet, and the purge gas inlet and outlet is configured to be connected to a purge gas source; The purge gas inlet and outlet are communicated with the interior of the support cylinder and are used to purge the filling pipe of the liquid hydrogen refueling gun after filling and / or purge before filling.

4. The liquid hydrogenation gun base according to claim 3, characterized in that: Also includes: a distance detector, provided on the gun base plate and / or the support cylinder, for detecting whether the liquid hydrogen refueling gun is in place; A controller is connected to the distance detector and the purge gas inlet and outlet. The controller is configured to control the purge gas inlet and outlet to be connected after determining that the liquid hydrogen hydrogenation gun is placed in place according to the detection result of the distance detector.

5. The liquid hydrogenation gun base according to claim 1 or 2, characterized in that: Also includes: The reheating device is configured to reheat the filling pipe of the liquid hydrogen refueling gun.

6. The liquid hydrogenation gun base according to claim 5, characterized in that: The gun mount base plate and / or the support tube are provided with an embedding groove; Wherein, the rewarming device includes a heater embedded in the embedding groove, and after the temperature of the heater rises, the heat is transferred to the interior of the support tube.

7. The liquid hydrogenation gun base according to claim 6, characterized in that: An insulating layer is provided on the sidewall of the embedding groove.

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