Hydrogen filtering device and hydrogen compression equipment

Abstract

The utility model provides a hydrogen filtering device and hydrogen compression equipment, and the hydrogen filtering device comprises a mounting bracket, and a first filtering part, a second filtering part and a switch valve part which are arranged on the mounting bracket, the first filtering part is used for primary filtering, and the second filtering part is used for secondary filtering; the first filtering part comprises a double-layer filtering cylinder, the double-layer filtering cylinder comprises an outer cylinder body and an inner cylinder body arranged in the outer cylinder body, a first air inlet is formed in the top of the outer cylinder body, and a first air outlet is formed in the bottom of the outer cylinder body. Hydrogen is introduced into the first gas inlet in the top of the outer cylinder body, enters the inner cylinder body and then enters the outer cylinder body from the bottom of the inner cylinder body, primary filtering treatment is carried out through the filtering units in the inner cylinder body and the outer cylinder body, secondary filtering is carried out through the second filtering component, the filtering effect is good, and the filtering effect is good. Therefore, the hydrogen can meet the required purity when being compressed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydrogen production equipment, specifically, a kind of hydrogen filter device and hydrogen compression equipment. BACKGROUND

[0002] Hydrogen, as a kind of pollution-free, high-calorific-value ideal clean energy, has attracted the high attention of various industries, and the demand is increasingly vigorous. However, pure hydrogen does not exist in nature, and can only be separated from other chemical substances. Due to uneven distribution of resources, the scale and characteristics of hydrogen production present a diversified pattern. Hydrogen sources are complex, and there are many types of impurities, among which the mainstream is hydrogen production from fossil energy, hydrogen production by electrolysis of water or industrial by-product hydrogen, etc. Certain impurities are generated during preparation.

[0003] At present, hydrogen will mix with impurities during long-term storage due to micro-leakage and other reasons. If the mixed impurities are directly filled into the vehicle-mounted gas cylinder, valve blockage and other faults will occur over a long period of time. UTILITY MODEL CONTENT

[0004] Therefore, in order to solve the problem that the hydrogen purity is insufficient due to the fact that the hydrogen is not filtered before filling in the existing vehicle-mounted gas cylinder, the utility model provides a hydrogen filter device and hydrogen compression equipment, and the specific technical scheme is as follows:

[0005] On the one hand, a hydrogen filter device includes a mounting bracket, a first filter component, a second filter component and a switch valve component arranged on the mounting bracket. The first filter component is used for primary filtration, and the second filter component is used for secondary filtration. The first filter component includes a double-layer filter cartridge, which includes an outer cylinder body and an inner cylinder body arranged in the outer cylinder body. The top of the outer cylinder body is provided with a first gas inlet, and the bottom is provided with a first gas outlet. The inner cavity of the inner cylinder body is in communication with the first gas inlet, and the cylinder wall is provided with a filter hole in communication with the first gas outlet. The switch valve component includes a connecting pipeline for connecting the first filter component and the second filter component.

[0006] The above-mentioned hydrogen filter device passes hydrogen into the first gas inlet at the top of the outer cylinder body, into the inner cylinder body, and then into the outer cylinder body from the bottom of the inner cylinder body. The filter unit in the inner cylinder body and the outer cylinder body is used for primary filtration, and the second filter component is used for secondary filtration, so as to achieve good filtration effect and ensure that the hydrogen meets the required purity when being compressed.

[0007] Further, the bottom of the outer cylinder body is provided with a first filter unit, the first filter unit includes activated carbon, and the cylinder wall of the inner cylinder body is provided with a filter layer.

[0008] Further, the second filter component includes a plurality of dust filters connected in series.

[0009] The dust filter comprises a shell provided with a second filtering cavity, a sealing cover arranged at the top of the shell, and a second filtering assembly arranged in the second filtering cavity.

[0010] The second filtering assembly is sequentially provided with a first cotton layer, a first hole cylinder layer, a filtering unit and a second hole cylinder layer from outside to inside.

[0011] Further, the first hole cylinder layer and the second hole cylinder layer are both stainless steel cylinder layers.

[0012] Further, the second filtering part comprises three dust filters.

[0013] Further, the first filtering part further comprises a filter core cylinder shell arranged on the inner wall of the outer cylinder body.

[0014] Further, an auxiliary supercharging part is further arranged between the first filtering part and the second filtering part.

[0015] The auxiliary supercharging part comprises an auxiliary supercharging pump, which is used to increase the hydrogen pressure at the inlet of the second filtering part.

[0016] Further, a display instrument is further arranged on the mounting bracket, which is used to display the hydrogen pressure at the inlet.

[0017] Further, the outer cylinder body is provided with an observation window, which is used to observe the filtering condition of the first filtering unit.

[0018] In another aspect, a hydrogen compression device is characterized in that it comprises a compression host and a hydrogen filtering device; the hydrogen filtering device is arranged at the gas inlet of the compression host and is used to process the hydrogen entering the compression host. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present utility model can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is placed on showing the principles of the embodiments. In different views, the same reference signs designate corresponding parts.

[0020] Figure 1 is the structure schematic view of the hydrogen filtering device in an embodiment of the present utility model;

[0021] Figure 2 is the structure sectional view of the double-layer filtering cylinder in an embodiment of the present utility model;

[0022] Figure 3 is the structure schematic view of the hydrogen compression device in an embodiment of the present utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1, mounting bracket; 2, first filter component; 3, second filter component; 4, switch valve component; 5, auxiliary supercharging component; 6, display instrument; 7, compression main machine; 8, hydrogen filter device;

[0025] 21, double-layer filter cartridge; 22, outer cylinder body; 23, inner cylinder body; 24, filter core cylinder shell;

[0026] 41, connecting pipeline; 42, switch;

[0027] 51, auxiliary supercharging pump. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model more clearly and clearly, the following will be combined with its embodiment, and the utility model will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and do not limit the protection scope of the utility model.

[0029] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] The "first", "second" in the utility model do not represent the specific number and order, but only for the name of the distinction.

[0032] On the one hand, as Figure 1 And Figure 2As shown, the hydrogen filtering device in one embodiment of the utility model, including installation support 1, first filter component 2, second filter component 3 and switch valve component 4 of setting on installation support 1, first filter component 2 is used to carry out primary filtration, second filter component 3 is used to carry out secondary filtration, first filter component 2 includes double-layer filter cartridge 21, double-layer filter cartridge 21 includes outer cylinder body 22 and the inner cylinder body 23 of setting in outer cylinder body 22, the top of outer cylinder body 22 is equipped with first gas inlet, bottom is equipped with first gas outlet, the inner chamber of inner cylinder body 23 is communicated with first gas inlet, and the cylinder wall is equipped with the filter hole that is communicated with first gas outlet, switch valve component 4 includes the connecting pipeline 41 for connecting first filter component 2 and second filter component 3.

[0033] The hydrogen filtering device passes hydrogen into the first gas inlet at the top of the outer cylinder body 22, into the inner cylinder body 23, and then into the outer cylinder body 22 from the bottom of the inner cylinder body 23. The filtering unit in the inner cylinder body 23 and the outer cylinder body 22 is used for primary filtration, and the second filter component 3 is used for secondary filtration. The filtering effect is good, thereby ensuring that the hydrogen meets the required purity when being compressed.

[0034] In one embodiment, the bottom of the outer cylinder body 22 is provided with a first filter unit, the first filter unit includes activated carbon, and the cylinder wall of the inner cylinder body 23 is provided with a filter layer. In this way, the activated carbon with a micro-porous structure can adsorb water vapor components and part of solid particles in the hydrogen, thereby achieving the effect of preliminary filtration. At the same time, the filter layer of the cylinder wall of the inner cylinder body 23 can strengthen the effect of preliminary filtration.

[0035] In one embodiment, the second filter component 3 includes a plurality of dust filters connected in series. The dust filter includes a housing provided with a second filter cavity, a sealing cover provided at the top of the housing, and a second filter assembly provided in the second filter cavity. The second filter assembly includes, from outside to inside, a first cotton layer, a first hole cylinder layer, a filter unit, and a second hole cylinder layer. Specifically, the filter unit is a filter cartridge provided with a corrugated structure. In this way, the first cotton layer filters wet particles and oil stains, and the filter cartridge with a corrugated structure can filter smaller solid dust particles, thereby ensuring the filtering effect of secondary filtration.

[0036] In one embodiment, the number of pores of each layer in the second filter assembly is greater than that of the filter layer, and the diameter of the pores is greater than that of the filter layer.

[0037] In one embodiment, the switch valve component 4 further includes a switching switch 42 for disconnecting or connecting the first filter component 2 and the second filter component 3. In this way, according to the actual needs, the hydrogen can be filtered by the first filter component 2 or the second filter component 3.

[0038] In one embodiment, both the first and second perforated layers are stainless steel. Thus, the combination of high-performance stainless steel layers and an epoxy resin outer shell with an anti-corrosion coating ensures the service life of the dust filter.

[0039] In one embodiment, the second filter element includes three dust filters. Thus, by limiting the number of dust filters, the filtration effect of the secondary filtration is ensured.

[0040] In one embodiment, the first filter element 2 further includes a filter cartridge shell 24 disposed on the inner wall of the outer cylinder 22. Specifically, the filter cartridge shell 24 is provided with filter holes. In this way, the filter cartridge shell 24 can further ensure the initial filtration effect of the first filter element 2.

[0041] In one embodiment, an auxiliary pressurization component 5 is further provided between the first filter component 2 and the second filter component 3; the auxiliary pressurization component 5 includes an auxiliary pressurization pump 51, which is used to increase the hydrogen pressure at the inlet of the second filter component 3.

[0042] In one embodiment, a display instrument 6 is also included, mounted on the mounting bracket 1, for displaying the hydrogen pressure at the inlet. Thus, by detecting the hydrogen pressure at each connection point using a pressure detector and monitoring the stability of the hydrogen pressure using the display instrument 6, the safe operation of the hydrogen filtration device is ensured.

[0043] In one embodiment, the outer cylinder 22 is provided with an observation window for observing the filtration status of the first filtration unit. Thus, by observing the filtration status of disposable filter materials such as activated carbon within the first filtration unit through the observation window, the disposable filter materials can be replaced in a timely manner, ensuring the filtration effect of the hydrogen filtration device.

[0044] On the other hand, such as Figure 3 As shown, a hydrogen compression device according to one embodiment of the present invention includes a compression host 7 and a hydrogen filter device 8; the hydrogen filter device 8 is disposed at the inlet of the compression host 7 and is used to process the hydrogen entering the compression host 7.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A hydrogen filtering device, characterized by, The hydrogen filter device comprises a mounting bracket (1), a first filter component (2) arranged on the mounting bracket (1), a second filter component (3), and a switch valve component (4); The first filter component (2) is used for primary filtration, and the second filter component (3) is used for secondary filtration; The first filter component (2) comprises a double-layer filter cylinder (21), wherein the double-layer filter cylinder (21) comprises an outer cylinder body (22) and an inner cylinder body (23) arranged in the outer cylinder body (22), the top of the outer cylinder body (22) is provided with a first air inlet, the bottom of the outer cylinder body (22) is provided with a first air outlet, the inner cavity of the inner cylinder body (23) is communicated with the first air inlet, and the cylinder wall of the inner cylinder body (23) is provided with filter holes communicated with the first air outlet; The switch valve component (4) comprises a connecting pipeline (41) for connecting the first filter component (2) and the second filter component (3).

2. The hydrogen gas filtering device according to claim 1, wherein The bottom of the outer cylinder body (22) is provided with a first filter unit, and the cylinder wall of the inner cylinder body (23) is provided with a filter layer.

3. The hydrogen filter of claim 1, wherein The second filter component (3) comprises a plurality of dust filters connected in series. The dust filter comprises an outer shell provided with a second filter cavity, a sealing cover arranged at the top of the outer shell, and a second filter assembly arranged in the second filter cavity. The second filter assembly is sequentially provided with a first cotton layer, a first hole cylinder layer, a filter unit, and a second hole cylinder layer from outside to inside.

4. The hydrogen filter of claim 3, wherein The first hole cylinder layer and the second hole cylinder layer are both stainless steel cylinder layers.

5. The hydrogen gas filtering device of claim 3, wherein The second filter component (3) comprises three dust filters.

6. The hydrogen gas filtering device of claim 1, wherein The first filter component (2) further comprises a filter core cylinder shell (24) arranged on the inner wall of the outer cylinder body (22).

7. The hydrogen gas filtering device of claim 1, wherein An auxiliary booster component (5) is further arranged between the first filter component (2) and the second filter component (3). The auxiliary booster component (5) comprises an auxiliary booster pump (51) for increasing the hydrogen pressure at the inlet of the second filter component (3).

8. The hydrogen gas filtering device of claim 1, wherein, A display instrument (6) is further arranged on the mounting bracket (1), and the display instrument (6) is used for displaying the hydrogen pressure at the inlet.

9. The hydrogen gas filtering device of claim 2, wherein, The outer cylinder body (22) is provided with an observation window for observing the filtration of the first filter unit.

10. A hydrogen compression apparatus characterized by comprising: The hydrogen filter device (8) is arranged at the air inlet of the compression host (7) and used for processing the hydrogen entering the compression host (7). The hydrogen filter device (8) is arranged at the air inlet of the compression host (7) and used for processing the hydrogen entering the compression host (7).

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