Hydrogen filling, loading and unloading integrated column

Abstract

The utility model discloses a hydrogen filling, loading and unloading integrated column which comprises a filling pipeline, an outlet of the filling pipeline is connected with a hydrogen inlet b through a filling hose, and a manual ball valve, a first manual ball valve, a first one-way valve, a first pneumatic ball valve, a first filter, a first flowmeter and a third manual ball valve are sequentially mounted on the filling hose; an inlet of the hydrogen unloading pipeline is connected with one end of a hydrogen unloading hose of the hydrogen unloading column, and the other end of the hydrogen unloading hose is connected with a hydrogen outlet b through a fourth manual ball valve, a second filter, a second one-way valve, a second pneumatic ball valve, a first flow meter and a third manual ball valve in sequence; a first pressure gauge is connected between the first manual ball valve and the first one-way valve; according to the integrated device, the functions of a hydrogen adding system and a hydrogen discharging system are integrated into the integrated device, the single device can achieve filling and discharging of hydrogen in a hydrogen tube bundle vehicle, and the hydrogen adding function and the hydrogen discharging function can be achieved at the same time through the single flow meter and the single safety valve.

Description

Technical Field

[0001] The utility model relates to the field of hydrogen filling, loading and unloading integrated columns. More specifically, the utility model relates to a hydrogen filling, loading and unloading integrated column. Background Art

[0002] The integrated hydrogen filling and unloading column is a device for filling and discharging hydrogen from a hydrogen tube trailer. During the hydrogen filling process, the hydrogen is compressed by a compressor and then filled into the hydrogen storage bottle on the hydrogen tube trailer through the integrated hydrogen filling and unloading column. During the hydrogen unloading process, the hydrogen on the hydrogen tube trailer is pressurized by flat pressure or a compressor and then stored in a fixed hydrogen storage bottle group within the station. In the existing disclosed technology, the filling column and the hydrogen unloading column are each a single device, each having functions such as metering, safe venting, purging and replacement, and sampling, and are respectively equipped with a flow meter, a safe venting line, a purge and replacement line, a sampling line, and an instrument gas line. In this way, the hydrogen filling and unloading equipment needs to be equipped with two sets of flow meters, two sets of safety valves, two sets of purge and replacement valves, two sets of sampling valves, etc. At the same time, two sets of equipment foundations within the station must also be made. Operating space must also be reserved between the filling column and the hydrogen unloading column, which increases the on-site area. Utility Model Content

[0003] In order to achieve these purposes and other advantages according to the present invention, on the one hand, a preferred embodiment of the present invention provides an integrated hydrogen filling and unloading column, comprising:

[0004] A filling pipeline, the outlet of which is connected to the hydrogen inlet b through a filling hose, on which a first manual ball valve, a first one-way valve, a first pneumatic ball valve, a first filter, a first flow meter and a third manual ball valve are sequentially installed;

[0005] A hydrogen unloading pipeline, the inlet of which is connected to one end of the hydrogen unloading hose of the hydrogen unloading column, and the other end of the hydrogen unloading hose is connected to the hydrogen outlet b through the fourth manual ball valve, the second filter, the second one-way valve, the second pneumatic ball valve, the first flow meter and the third manual ball valve in sequence;

[0006] A first pressure gauge is connected between the first manual ball valve and the first one-way valve;

[0007] A second pressure gauge is connected between the fourth manual ball valve and the second filter.

[0008] According to a preferred embodiment of the present invention, a first pressure transmitter is further connected between the first manual ball valve and the first one-way valve, and a second pressure transmitter is further connected between the fourth manual ball valve and the second filter.

[0009] According to a preferred embodiment of the present invention, a first needle valve is connected between the first one-way valve and the first pneumatic ball valve of the filling line.

[0010] According to a preferred embodiment of the present invention, a second needle valve is connected between the fourth manual ball valve and the second filter of the hydrogen unloading pipeline; the ends of the first needle valve and the second needle valve are connected, and are connected to the third one-way valve and the seventh needle valve until the purge replacement inlet c.

[0011] According to a preferred embodiment of the present invention, a fifth needle valve is connected between the terminal connection point of the first needle valve and the second needle valve and the third one-way valve, extending to the leakage inspection port g.

[0012] According to a preferred embodiment of the present invention, a fourth needle valve is connected between the second one-way valve and the second pneumatic ball valve of the hydrogen unloading pipeline, the ends of the third needle valve and the fourth needle valve are connected, and a sixth needle valve is connected until the vent e.

[0013] According to a preferred embodiment of the present invention, the first flow meter and the third manual ball valve are shared by the filling pipeline and the hydrogen unloading pipeline, and the inlet b of the filling pipeline is the outlet b of the hydrogen unloading pipeline.

[0014] According to a preferred embodiment of the present invention, a first safety valve is connected between the second pneumatic ball valve and the first flow meter, and is connected to the rear end of the sixth needle valve until the vent e.

[0015] The present invention includes at least the following beneficial effects: the present invention integrates the functions of the hydrogen refueling system and the hydrogen unloading system into an integrated device, a single device can realize the filling and discharge of hydrogen in the hydrogen tube bundle vehicle, and a single flow meter and a single safety valve can simultaneously meet the hydrogen refueling and hydrogen unloading functions.

[0016] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the framework structure of the integrated hydrogen filling and unloading column in the utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0019] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0020] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which 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 orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0021] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0022] like Figure 1 As shown, a preferred embodiment of the present invention provides an integrated hydrogen filling and unloading column, including a filling pipeline, whose outlet is connected to the hydrogen inlet b through a filling hose a2, and the filling hose a2 is sequentially installed with a manual ball valve BV0102 (first manual ball valve 1), a one-way valve CV0102 (first one-way valve 2), a pneumatic ball valve PBV0102 (first pneumatic ball valve 3), a filter FL0102 (first filter 4), a flow meter FM0101 (first flow meter 5) and a manual ball valve BV0103 (third manual ball valve 6);

[0023] A hydrogen unloading pipeline, the inlet of which is connected to one end of the hydrogen unloading hose a1 of the hydrogen unloading column, and the other end of the hydrogen unloading hose a1 is connected to the hydrogen outlet b through the manual ball valve BV0101 (fourth manual ball valve 9), the filter FL0101 (second filter 10), the one-way valve CV0101 (second one-way valve 11), the pneumatic ball valve PBV0101 (second pneumatic ball valve 12), the flow meter FM0101 (first flow meter 5) and the manual ball valve BV0103 (third manual ball valve 6);

[0024] The flow meter FM0101 (first flow meter 5) and the manual ball valve BV0103 (third manual ball valve 6) are shared by the filling pipeline and the hydrogen unloading pipeline, and the inlet b of the filling pipeline is the outlet b of the hydrogen unloading pipeline.

[0025] A pressure gauge PG0102 (first pressure gauge 7 ) and a pressure transmitter PT0102 (first pressure transmitter 8 ) are connected between the manual ball valve BV0102 (first manual ball valve 1 ) and the one-way valve CV0102 (first one-way valve 2 ).

[0026] A pressure gauge PG0101 (second pressure gauge 13 ) and a pressure transmitter PT0101 (second pressure transmitter 14 ) are connected between the manual ball valve BV0101 (fourth manual ball valve 9 ) and the filter FL0101 (second filter 10 ).

[0027] A first needle valve (first needle valve 17) is connected between the one-way valve CV0102 (first one-way valve 2) of the filling pipeline and the pneumatic ball valve PBV0102 (first pneumatic ball valve 3); a second needle valve (second needle valve 18) is connected between the manual ball valve BV0101 (fourth manual ball valve 9) of the hydrogen unloading pipeline and the filter FL0101 (second filter 10).

[0028] The ends of needle valve NV0101 (first needle valve 17) and needle valve NV0105 (second needle valve 18) are connected, and are connected to one-way valve CV0103 (third one-way valve 15) and needle valve NV0107 (seventh needle valve 16) until the purge replacement inlet c.

[0029] A needle valve NV0108 (fifth needle valve 21 ) is connected between the end connection points of the needle valve NV0101 (first needle valve 17 ) and the needle valve NV0105 (second needle valve 18 ) and the one-way valve CV0103 (third one-way valve 15 ), extending to the leakage inspection port g.

[0030] A needle valve NV0102 (fourth needle valve 20) is connected between the one-way valve CV0101 (second one-way valve 11) and the pneumatic ball valve PBV0101 (second pneumatic ball valve 12) of the hydrogen unloading pipeline. The ends of the needle valve NV0106 (third needle valve 19) and the needle valve NV0102 (fourth needle valve 20) are connected, and are connected to the needle valve NV0104 (sixth needle valve 22) until the vent e.

[0031] A safety valve PSV0101 (first safety valve 24 ) is connected between the pneumatic ball valve PBV0101 (second pneumatic ball valve 12 ) and the flowmeter FM0101 (first flowmeter 5 ), and is connected to the rear end of the needle valve NV0104 (sixth needle valve 22 ) until the vent e.

[0032] Another embodiment provides a hydrogen replacement method based on the hydrogen filling and unloading integrated column, comprising the following steps:

[0033] S1. When the hydrogen tube trailer is being filled, close the pneumatic ball valve PBV0101 (second pneumatic ball valve 12), isolate the hydrogen unloading pipeline, and disable the hydrogen unloading function. Connect the filling hose a2 to the hydrogen tube bundle vehicle, open the needle valve NV0107 (seventh needle valve 16) and the needle valve NV0105 (second needle valve 17) to inject nitrogen between the tube bundle vehicle and the pneumatic ball valve PBV0102 (first pneumatic ball valve 3). Then, close the needle valve NV0107 (seventh needle valve 16) and the needle valve NV0105 (second needle valve 17), and open the needle valve NV0106 (third needle valve 19) and the needle valve NV0104 (sixth needle valve 22) to release the nitrogen.

[0034] S2, repeat S1 4-6 times to complete nitrogen replacement;

[0035] S3. Open the valve on the compressor and the pneumatic ball valve PBV0102 (the first pneumatic ball valve 3) to inject hydrogen into the filling pipeline; open the needle valve NV0106 (the third needle valve 19) and the needle valve NV0104 (the sixth needle valve 22) to release the hydrogen;

[0036] S4. Repeat S3 4-6 times to complete hydrogen replacement.

[0037] S5. When the hydrogen tube trailer is unloading hydrogen, the first pneumatic ball valve is closed, the filling pipeline is isolated, and the filling function is turned off. The hydrogen unloading hose a1 is connected to the hydrogen tube bundle vehicle, and needle valves NV0107 (the seventh needle valve 16) and NV0105 (the second needle valve 18) are opened to inject nitrogen between the tube bundle vehicle and the second pneumatic ball valve. Then, needle valves NV0107 (the seventh needle valve 16) and NV0105 (the second needle valve 18) are closed, and needle valves NV0102 (the fourth needle valve 20) and NV0104 (the sixth needle valve 22) are opened to release the nitrogen.

[0038] S6, repeat S5 4-6 times to complete nitrogen replacement;

[0039] S7. Open the hydrogen main valve on the hydrogen tube trailer to inject hydrogen into the hydrogen unloading pipeline; open the needle valve NV0102 (the fourth needle valve 20) and the needle valve NV0104 (the sixth needle valve 22) to release the hydrogen;

[0040] S8. Repeat S7 4-6 times to complete hydrogen replacement.

[0041] The utility model's integrated hydrogen filling and unloading column can perform functions such as hydrogenation, unloading, nitrogen purge replacement, safety venting, hydrogen sampling, and hydrogen metering. This utility model integrates the functions of the hydrogenation and unloading systems into an integrated device. A single device can both fill and discharge hydrogen within a hydrogen tube bundle vehicle. Using a single flow meter and safety valve, both filling and unloading functions are simultaneously achieved, reducing the number of components, while also providing a more rational piping layout, a small footprint, and low manufacturing costs.

[0042] Moreover, the filling and unloading functions of the utility model share a flow meter and a safety valve, which reduces the manufacturing cost and external dimensions of the equipment while achieving the functions. The utility model adopts a double needle valve and a one-way valve configuration to prevent hydrogen from flowing back into the nitrogen pipeline, providing a double safety guarantee; at the same time, the replacement pipelines for filling and unloading hydrogen share a one-way valve and a needle valve, which reduces the number of valves and saves equipment space. The venting pipeline and the sampling pipeline for filling and unloading hydrogen in the utility model both adopt a double needle valve configuration, providing a double safety guarantee; at the same time, the venting pipeline and the sampling pipeline share a needle valve, which reduces the number of valves and saves equipment space.

[0043] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A hydrogen filling and unloading integrated column, characterized in that: include: A filling pipeline, the outlet of which is connected to the hydrogen inlet b through a filling hose, and the filling hose is sequentially installed with a first manual ball valve, a first one-way valve, a first pneumatic ball valve, a first filter, a first flow meter and a third manual ball valve; a hydrogen unloading pipeline, the inlet of which is connected to one end of the hydrogen unloading hose of the hydrogen unloading column, and the other end of the hydrogen unloading hose is connected to the hydrogen outlet b through a fourth manual ball valve, a second filter, a second one-way valve, a second pneumatic ball valve, a first flow meter and a third manual ball valve in sequence; a first pressure gauge is connected between the first manual ball valve and the first one-way valve; a second pressure gauge is connected between the fourth manual ball valve and the second filter.

2. The integrated hydrogen filling and unloading column according to claim 1, characterized in that: A first pressure transmitter is further connected between the first manual ball valve and the first one-way valve, and a second pressure transmitter is further connected between the fourth manual ball valve and the second filter.

3. The integrated hydrogen filling and unloading column according to claim 1, characterized in that: A first needle valve is connected between the first one-way valve and the first pneumatic ball valve of the filling line.

4. The integrated hydrogen filling and unloading column according to claim 3, characterized in that: A second needle valve is connected between the fourth manual ball valve and the second filter of the hydrogen unloading pipeline; the ends of the first needle valve and the second needle valve are connected, and are connected to the third one-way valve and the seventh needle valve, until the purge replacement inlet c.

5. The integrated hydrogen filling and unloading column according to claim 4, characterized in that: A fifth needle valve is connected between the connecting point between the first needle valve and the second needle valve and the third one-way valve, extending to the leakage inspection port g.

6. The integrated hydrogen filling and unloading column according to claim 5, characterized in that: A fourth needle valve is connected between the second one-way valve and the second pneumatic ball valve of the hydrogen unloading pipeline. The ends of the third needle valve and the fourth needle valve are connected, and a sixth needle valve is connected to the vent e.

7. The integrated hydrogen filling and unloading column according to claim 6, characterized in that: The first flow meter and the third manual ball valve are shared by the filling pipeline and the hydrogen unloading pipeline, and the inlet b of the filling pipeline is the outlet b of the hydrogen unloading pipeline.

8. The integrated hydrogen filling and unloading column according to claim 1, characterized in that: The first safety valve is connected between the second pneumatic ball valve and the first flow meter, and is connected to the rear end of the sixth needle valve until it reaches the vent e.

Images