CN111271598A - Hydrogenation device - Google Patents

Abstract

The application relates to the technical field of hydrogenation equipment, in particular to a hydrogenation device, which is used for conveying hydrogen provided by a gas storage cylinder group or hydrogen provided by a gas source to equipment to be inflated, wherein the gas storage cylinder group comprises at least three gas storage cylinders; the output end of the gas transmission path is connected with a hydrogenation component, and hydrogen is supplied to the equipment to be inflated through the hydrogenation component. The second control valve is moved out of the body and arranged between the gas storage cylinder group and the inlet end of the gas transmission path, so that the number of the gas transmission paths inside the hydrogenation device is reduced, the device is compact in structure and smaller in size, and meanwhile, the number of pipelines is reduced due to the fact that the gas transmission paths are reduced, and the cost is reduced.

Description

Hydrogenation unit

technical field

The present application relates to the technical field of hydrogenation equipment, and in particular, to a hydrogenation device.

Background technique

At present, there are three gas pipelines inside the hydrogenation machine, which are respectively connected with the high-pressure gas storage cylinders, the medium-pressure gas storage cylinders and the low-pressure gas storage cylinders. A control valve is installed on the gas pipeline connecting the gas cylinder, the medium-pressure gas storage cylinder and the high-pressure gas cylinder, so that when the hydrogen is transported, it can be transported in the order of low pressure first, then medium pressure, and finally high pressure. It is complicated and occupies a large space, which leads to a large volume of the hydrogenation machine, which is inconvenient for transportation, etc., and there are many pipelines inside the hydrogenation machine. In addition, the cost of the hydrogenation pipeline is extremely high, resulting in considerable waste.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a hydrogenation device, which solves the technical problems of large volume and high cost of the hydrogenation device in the prior art to a certain extent.

The present application provides a hydrogenation device for delivering hydrogen provided by a gas storage cylinder group or hydrogen provided by a gas source to a device to be inflated, wherein the gas storage cylinder group includes at least three gas storage cylinders, and the gas storage cylinder group includes at least three gas storage cylinders. The hydrogen device includes a body, the body is provided with a gas transmission path, the input ends of the gas transmission path are respectively connected with the at least three gas storage cylinders, and the gas transmission path is connected with the at least three gas storage cylinders At least one first control valve is respectively set between at least two of the gas cylinders, and the at least one first control valve is set outside the body; the gas transmission path is provided with at least one first control valve. Two control valve;

The output end of the gas transmission path is connected with a hydrogenation component for supplying hydrogen to the device to be charged.

In the above technical solution, further, the number of the gas transmission paths is only one.

In any of the above technical solutions, further, the second control valve divides the gas conveying path into a first conveying path and a second conveying path, and the first conveying path and the second conveying path can be connected in series Connected.

In any of the above technical solutions, further, the body is provided with a venting path, and the venting path communicates with the second conveying path via the first main branch path and the second main branch path, respectively.

In any of the above technical solutions, further, the venting path communicates with the second conveying path via the first main branch path and the first secondary branch path in sequence, and is provided on the first secondary branch path There is a vent valve.

In any of the above technical solutions, further, a safety valve is arranged on the second main branch path, and the safety valve is arranged in parallel with the vent valve.

In any of the above technical solutions, further, the vent valve and the second control valve are both air-controlled valves;

The body is provided with an instrument gas path, the instrument gas path is respectively communicated with the vent valve and the second control valve, and the instrument gas path is provided with an instrument gas hand valve and an instrument gas filter.

In any of the above technical solutions, further, the hydrogenation component includes a first hydrogenation component and a second hydrogenation component, and the first hydrogenation component and the second hydrogenation component are connected in parallel with the second hydrogenation component. 2. The output end of the conveying path.

In any of the above technical solutions, further, the first hydrogenation assembly includes a first pull-off valve and a first hydrogenation gun that are connected in sequence, and the first pull-off valve is communicated with the second pull-off valve the output end of the conveying path; the venting path is communicated with the first hydrogenation gun through the first main branch path and the second secondary branch path in sequence;

The second hydrogenation assembly includes a second pull-off valve and a second hydrogenation gun that are connected in sequence, and the second pull-off valve is communicated with the output end of the second conveying path; The secondary is communicated with the second hydrogenation gun via the first main branch path and the third secondary branch path.

In any of the above technical solutions, further, the first conveying path is provided with a hydrogen hand valve and a hydrogen filter.

In any of the above technical solutions, further, the first conveying path and/or the second conveying path is provided with a flow meter.

In any of the above technical solutions, further, when the second conveying path is provided with a flow meter, the heat exchanger is externally connected to the output end of the second conveying path and the output end of the second conveying path. on the part between the flow meters on the second conveying path.

In any of the above technical solutions, further, the first conveying path is provided with a first pressure transmitter and a first pressure gauge;

The second conveying path is provided with a second pressure transmitter and a second pressure gauge.

In any of the above technical solutions, further, the body further includes an explosion-proof junction box and a control device disposed in the explosion-proof junction box, the control device is respectively connected to the second control valve and the first conveying path. The electrical components on the second conveying path are connected with the electrical components on the second conveying path.

In any of the above technical solutions, further, the hydrogenation device further includes an operating table, the operating table and the main body are independently spaced apart, and the operating table is communicatively connected to the control device of the main body.

In any of the above technical solutions, further, the main body further includes a support frame and a casing covering the outside of the support frame, the gas transmission path, the first hydrogenation assembly and the second hydrogenation assembly. The hydrogen components are all arranged on the support frame.

In any of the above technical solutions, further, the hydrogenation device further includes a gas compression device, and the gas compression device can be respectively connected with the air inlet end of the gas storage cylinder group and the gas transmission path via the gas transmission pipeline. connected to the input.

In any of the above technical solutions, further, the number of the gas storage cylinders is three, and the three gas storage cylinders are respectively a first gas storage cylinder, a second gas storage cylinder and a third gas storage cylinder, and The pressure of the hydrogen stored in the first gas storage cylinder, the pressure of the hydrogen stored in the second gas storage cylinder, and the pressure of the hydrogen stored in the third gas storage cylinder increase sequentially, and the second gas storage cylinder and The third gas cylinders are respectively equipped with at least one first control valve.

Compared with the prior art, the beneficial effects of the present application are:

In the hydrogenation device provided by the present application, the first control valve is moved out of the body of the hydrogenation device and arranged between the gas storage cylinder group and the inlet end of the gas transmission path, thereby simplifying the interior of the shell of the hydrogenation device The number of gas transmission paths can be reduced, that is, the original three gas transmission paths are transformed into one gas transmission path or two gas transmission paths, which makes the body structure of the hydrogenation device more compact, smaller in volume, small in mass, and convenient for transportation. At the same time, because the gas transmission path is reduced, that is, the number of pipelines is reduced, and the cost is reduced.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. The drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the working principle diagram of the hydrogenation device provided by the embodiment of the application;

Fig. 2 is the partial structural schematic diagram of the hydrogenation device provided by the embodiment of the present application;

3 is a schematic structural diagram of another part of the hydrogenation device provided in the embodiment of the present application;

4 is a schematic structural diagram of another part of the hydrogenation device provided in the embodiment of the present application;

5 is a schematic structural diagram of another part of the hydrogenation device provided in the embodiment of the present application;

6 is a schematic structural diagram of another part of the hydrogenation device provided in the embodiment of the present application;

7 is a schematic diagram of the overall structure of the hydrogenation device provided in the embodiment of the present application;

8 is another schematic diagram of the overall structure of the hydrogenation device provided in the embodiment of the present application;

FIG. 9 is another schematic diagram of the overall structure of the hydrogenation device provided in the embodiment of the present application.

Reference number:

1-Gas delivery path, 111-First delivery path, 1111-Inlet port, 112-Second delivery path, 2-Venting path, 211-Venting port, 3-Instrument gas path, 311-Instrument gas inlet port, 4 -Hydrogen hand valve, 5-Hydrogen filter, 6-Second control valve, 7-Flowmeter, 8-Heat exchanger, 81-Heat exchanger inlet, 82-Heat exchanger outlet, 9-Vent valve, 10- Safety valve, 11-first pressure transmitter, 12-first pressure gauge, 13-second pressure transmitter, 14-second pressure gauge, 15-explosion-proof junction box, 16-instrument air hand valve, 17- Instrument gas filter, 18-gas detector, 19-first hydrogenation assembly, 191-first pull-off valve, 192-first hydrogenation gun, 20-second hydrogenation assembly, 201-second pull-off valve , 202-second hydrogenation gun, 21-hose, 22-gun seat, 23-signal box, 24-support frame, 25-housing, 26-control device, 27-check valve, 28-first-hand valve, 29-second hand valve, 30-third hand valve, 31-fourth hand valve, 32-first main branch path, 33-second main branch path, 34-first branch path, 35-first branch path Secondary branch path, 36-Third branch path.

Detailed ways

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments.

The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application.

Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

The following describes a hydrogenation apparatus according to some embodiments of the present application with reference to FIGS. 1 to 9 .

Referring to FIG. 1 and FIG. 2 , an embodiment of the present application provides a hydrogenation device for delivering hydrogen provided by a gas storage cylinder group or hydrogen provided by a gas source to a device to be inflated, wherein the gas storage cylinder group can Including three gas storage cylinders, the three gas storage cylinders are respectively a low-pressure gas cylinder or a first gas storage cylinder, a medium-pressure gas cylinder or a second gas storage cylinder, and a high-pressure gas cylinder or a third gas storage cylinder, that is, three gas storage cylinders. pressure from low to high. In addition, the equipment to be charged mentioned in the embodiment of the present application may be, for example, a fuel cell vehicle, that is, the hydrogenation apparatus according to the embodiment of the present application may be applied to a hydrogenation station.

The hydrogenation device includes a body, the body is provided with a gas transmission path 1, the input end of the gas transmission path 1, that is, the air inlet 1111, is respectively connected with the gas storage cylinder, and the input end of the gas transmission path 1 is connected with the medium pressure gas. A first control valve is respectively provided between the cylinders and between the input end of the gas transmission path 1 and the high-pressure gas cylinder, and the gas transmission path 1 is provided with a second control valve 6; A gas pipeline for transporting hydrogen is formed.

A hydrogenation assembly is connected to the output end of the gas transmission path 1, and hydrogen is supplied to the equipment to be charged through the hydrogenation assembly.

It can be seen from the above description that in the process of using the gas storage cylinder group to inflate, the low-pressure gas cylinder is first used to supply gas. When the gas is insufficient, start the gas supply of the high-pressure gas cylinder through another first control valve, and note here that the first control valve may be set between the low-pressure gas cylinder and the gas transmission path 1, or the first control valve may not be set. When the first control valve is set, although the low-pressure gas cylinder is communicated with the gas transmission path 1, the opening or closing of the gas transmission path 1 is controlled by the second control valve 6, that is, the gas transmission can be effectively controlled or stopped. When the first control valve is set between the bottle and the gas transmission path 1, when the gas transmission is performed, the first control valve and the second control valve 6 arranged between the low pressure gas cylinder and the gas transmission path 1 need to be opened, and the gas transmission is performed. operate.

Among them, the hydrogenation device also includes gas compression equipment, and the inlet end of the gas compression equipment is connected with the original hydrogen source, that is, the gas source, and the gas outlet end of the gas compression equipment is respectively connected with the inlet end of the gas storage cylinder group and the hydrogenation equipment. The input ends of the gas transmission paths are connected to each other, and the gas compression device here can be a compressor, which will be described as an example below. Among them, the gas source can first inflate the gas storage cylinder group through the compressor, so that the hydrogen storage cylinder group can store enough hydrogen and wait for the replacement charging equipment to be inflated. The hydrogen in the cylinder group will be transported to the equipment to be inflated through the gas transmission path in the body of the hydrogenation device in sequence. When the pressure on the side of the gas storage cylinder group and the pressure on the side of the equipment to be inflated reach a balance, that is, the gas can no longer be inflated. The first control valve between the high-pressure gas cylinder and the gas transmission path 1, and then disconnect the pipeline connecting the gas storage cylinder group and the input end of the gas transmission path 1 (the air inlet of the main body), and connect the compressor through the pipe The air inlet of the main body is connected to the air inlet of the main body (here is not limited to this structure, the gas storage cylinder group, the compressor and the air inlet of the main body can also be connected through a three-way valve, just screw the three-way valve to complete the Open or close different paths), start the compressor again, and the compressor compresses the original gas source to make it higher than the pressure on the side of the equipment to be inflated, that is, the high-pressure hydrogen output from the compressor no longer passes through the hydrogen storage cylinder group, The direct charging mode is realized by directly passing the gas transmission path in the hydrogenation equipment body and directly charging the equipment to be charged. Of course, it is not limited to starting the compressor for direct charging only when the pressure of the hydrogen storage cylinder group is insufficient, and the compressor direct charging mode can also be used from the beginning until the end of charging.

In the embodiment, the main body further includes a support frame 24 and an outer casing 25 , the above-mentioned gas transmission path 1 ie the gas transmission pipeline and the hydrogenation component are all arranged on the support frame 24 , and the outer casing 25 covers the support frame 24 and the gas transmission path 1 . Outside, the hydrogenation assembly can be exposed to the shell 25. In addition, in the embodiment, the hydrogenation assembly includes a first hydrogenation assembly 19 and a second hydrogenation assembly 20. The structure of the hydrogenation assembly will be described in detail below. describe. In the embodiment, the support frame 24 plays the role of supporting the gas pipeline, the first hydrogenation assembly 19 and the second hydrogenation assembly 20, and the casing 25 plays the role of dustproof and waterproof.

In the hydrogenation device provided in this embodiment, the first control valve is moved out of the casing 25 of the body of the hydrogenation device (that is, the first control valve is arranged outside the casing 25 of the hydrogenation device), and the first control valve is arranged in the gas storage device. Between the bottle group and the inlet end of the gas transmission path 1, the number of gas transmission paths 1 inside the casing 25 of the hydrogenation device is simplified, that is, the original three gas transmission paths are converted into one gas transmission path 1, so that the The body structure of the hydrogenation device is more compact, the volume is smaller, and the mass is small, which is convenient for transportation. At the same time, because the gas transmission path 1 is reduced, the number of pipelines is reduced, and the cost is reduced. In addition, since the number of gas transmission paths 1 is reduced, the vibration caused by the flow of hydrogen gas is also reduced, thereby reducing the working noise.

Of course, in the case of only three gas storage cylinders, the device is not limited to including one gas transmission path 1, but also includes two gas transmission paths, and the two gas transmission paths are respectively associated with the corresponding medium-pressure gas cylinders and high-pressure gas cylinders. They are in one-to-one correspondence and communicate with each other through the first control valve.

Among them, the number of gas storage cylinders is not limited to three, but can also be selected according to actual needs. Among the multiple gas storage cylinders, except for the gas storage cylinder with the lowest pressure, the remaining gas storage cylinders and the gas transmission path 1 are respectively provided with At least one first control valve, of course, a first control valve may also be provided between the gas storage cylinder storing the hydrogen with the lowest pressure and the gas transmission path 1 .

In this embodiment, preferably, as shown in FIGS. 1 to 6 , the second control valve 6 divides the gas delivery path 1 into a first delivery path 111 and a second delivery path 112 , that is, the gas delivery path 1 The part between the air inlet 1111 and the second control valve 6 is the first conveying path 111 , and the part of the air conveying path 1 between the second control valve 6 and the air outlet is the second conveying path 112 . Furthermore, both the first conveyance path 111 and the second conveyance path 112 can be connected in series.

In the embodiment, the main body is further provided with an emptying path 2, and the emptying path 2 communicates with the second conveying path 112 via the first main branch path 32 and the first secondary branch path 34 in sequence, and is provided on the first secondary branch path 34. There is a vent valve 9, and the first main branch path 32 is provided with a one-way valve 27 to ensure one-way flow of gas and prevent air from entering the pipeline of the compressor, which is safer and more reliable. The vent path 2 is correspondingly provided with a vent 211 ( See Figure 5). In addition, the venting path 2 is also communicated with the second conveying path 112 via the second main branch path 33, which will be described in detail below.

As described above, as shown in FIG. 1 and FIG. 2 , the hydrogenation assembly includes a first hydrogenation assembly 19 and a second hydrogenation assembly 20, and the first hydrogenation assembly 19 and the second hydrogenation assembly 20 are connected in parallel with the second transmission output of path 112.

Specifically, the first hydrogenation assembly 19 includes a first break valve 191 and a first hydrogenation gun 192 connected in sequence, and the first break valve 191 is communicated with the output end of the second delivery path 112; venting path 2 communicated with the first hydrogenation gun 192 of the first hydrogenation assembly 19 through the first main branch path 32 and the second secondary branch path 35 in sequence;

The second hydrogenation assembly 20 includes a second break valve 201 and a second hydrogenation gun 202 connected in sequence, and the second break valve 201 is communicated with the output end of the second delivery path 112 ; the venting path 2 is sequentially connected through The first main branch path 32 and the third branch path 36 communicate with the second hydrogenation gun 202 of the second hydrogenation assembly 20 .

As described above, the first branch path 34 , the second branch path 35 and the third branch path 36 are all branched in parallel from the first main branch path 32 to communicate with the second conveying path 112 and the first Hydrogen lance 192 and second hydrogen lance 202.

Specifically, the portion of the first branch path 34 located between the vent valve 9 and the second delivery path 112 is further provided with a fourth hand valve 31 that is normally open.

Wherein, both the first hydrogenation gun 192 and the second hydrogenation gun 202 are equipped with a gun seat 22, and the hydrogenation gun and the corresponding pull-off valve are connected by a hose 21, specifically a rubber hose, but not only limited to this.

According to the structure described above, when the hydrogen charging device with charging equipment is completed, the hydrogen charging gun is closed, the second control valve 6 is closed, the vent valve 9 is opened, and the pressure in the second delivery path 112 and the hydrogen charging gun is released to a slightly positive pressure , which prevents the hoses 21 and hydrogenation guns in the first hydrogenation assembly 19 and the second hydrogenation assembly 20 from affecting the service life in a high-pressure standby state, and also ensures safety.

In addition, in this implementation, the double guns of the first hydrogenation gun 192 and the second hydrogenation gun 202 can be set to different inflatable gun models according to actual needs, so that different types of inflatable guns can be set at the same time. The inflatable equipment is inflated, which improves the inflation efficiency. Of course, it is not limited to this, and the model of the double gun can also be the same, that is, it can be selected according to actual needs.

Among them, the first break valve 191 and the second break valve 201 have the same function, both can prevent leakage accidents caused by accidental rupture of pipelines such as rubber hoses, and ensure the safety and reliability of the device.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 2 , a safety valve 10 is further provided between the venting path 2 and the second conveying path 112 , that is, the second main branch path 33 is provided with the above-mentioned The safety valve 10 described above, that is, the safety valve 10 and the vent valve 9 are provided in parallel between the venting path 2 and the second conveying path 112 .

The main function of the safety valve 10 is to maintain the pressure in the second conveying path 112 more accurately, and the safety valve 10 can automatically control the opening and closing according to the medium pressure, so as to ensure that the pressure of the hydrogen in the second conveying path 112 does not exceed a safe value , when the safety value is exceeded, the hydrogen gas is released in time, so that the hydrogen pressure in the second conveying path 112 is maintained within a safe range.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 2 , the vent valve 9 and the second control valve 6 are both air-controlled valves;

The main body is also provided with an instrument gas path 3, which is communicated with the vent valve 9 and the second control valve 6 respectively, mainly through the instrument gas path 3 to respectively provide the vent valve 9 and the second control valve 6 with an air source for action , and the instrument gas path 3 is formed by a pipeline, and has an instrument gas inlet end 311 (see Figure 5);

The instrument gas path 3 is provided with an instrument gas hand valve 16 and an instrument gas filter 17, wherein the instrument gas hand valve 16 can be opened or closed according to actual needs, and the operation is simple and convenient. Note here that the instrument gas hand valve 16 here When the hydrogenation device is working normally, it is in a normally open state. When there is a problem with the hydrogenation device, the instrument gas hand valve 16 can be used to quickly close the instrument gas path 3, which is safer and more reliable; the instrument gas filter 17 to filter impurities in the gas.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 2 , the first delivery path 111 is provided with a hydrogen hand valve 4 and a hydrogen filter 5 .

According to the structure described above, the hydrogen hand valve 4 is in a normally open state. When there is a problem with the gas transmission path 1, such as a problem with the second control valve 6, the gas transmission path 1 can be quickly closed through the hydrogen hand valve 4 to start the operation. To the role of double insurance; the hydrogen filter 5 plays the role of filtering impurities in the hydrogen to ensure the purity of the hydrogen.

In this embodiment, preferably, as shown in FIGS. 1 and 2 , the second conveying path 112 is provided with a flow meter 7 .

According to the structure described above, the flow rate and flow rate of hydrogen in the gas transmission path 1 can be detected by the flow meter 7, so that the flow rate of the high-pressure pipeline can be monitored, and then the opening of the second control valve 6 can be adjusted correspondingly, thereby adjusting the transmission rate. The flow rate and flow rate of the hydrogen gas in the gas path 1 make the delivery of the high-pressure hydrogen gas very stable, thereby achieving low vibration and low noise.

In addition, during the hydrogenation process, the price is settled by reading the instantaneous flow rate of the flow meter 7, accumulating the flow rate, and calculating the flow rate when the hydrogenation is completed.

Of course, it is not limited to this, that is, although not shown, the first conveying path 111 may also be provided with a flow meter, or both the first conveying path and the second conveying path may be provided with a flow meter.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 5 , a heat exchanger 8 is externally connected between the input end of the parallel connection of the first hydrogenation assembly 19 and the second hydrogenation assembly 20 and the flow meter 7 , so that the This ensures that the hydrogenation unit is more compact.

According to the structure described above, in order to satisfy the fast hydrogenation, the hydrogen needs to be cooled by the heat exchanger 8 (the heat exchanger 8 is independent of the hydrogenation device, and the hydrogenation device passes the heat exchanger inlet 81 on it and the heat exchange The outlet 82 of the heat exchanger is externally connected to the heat exchanger 8, and the inlet 81 of the heat exchanger communicates with the second conveying path 112 via the inlet path of the heat exchanger. A normally open first-hand valve 28 is arranged on the inlet path of the heat exchanger, namely the first-hand valve. The valve 28 is located between the heat exchanger inlet 81 and the flow meter 7, the heat exchanger outlet 82 communicates with the second delivery path 112 via the heat exchanger outlet path, and a normally open second hand valve is provided on the heat exchanger outlet path 29, that is, the second hand valve 29 is located between the heat exchanger outlet 82 and the hydrogenation assembly. In addition, in the embodiment, the second delivery path 112 is located at the intersection of the heat exchanger inlet path and the second delivery path 112. The part between the point and the intersection of the heat exchanger outlet path and the second conveying path 112 is provided with a normally closed third hand valve 30, when one or both of the second conveying path 112 or the heat exchanger 8 When both of them have problems, quickly cut off the first-hand valve 28 and the second-hand valve 29 to isolate them to avoid mutual influence).

In this embodiment, preferably, as shown in FIG. 1 to FIG. 3 , the first conveying path 111 is provided with a first pressure transmitter 11 and a first pressure gauge 12 . A pressure gauge 12 cooperates to detect the hydrogen pressure in the first conveying path 111 in real time to ensure that tiny hydrogen leaks can be found, and maintenance measures are taken to eliminate hidden dangers and reduce personnel inspection load;

The second conveying path 112 is provided with a second pressure transmitter 13 and a second pressure gauge 14, which also have the above-mentioned effects. The second pressure transmitter 13 and the second pressure gauge 14 are used to cooperate with The hydrogen pressure in the path 112 is detected to ensure that tiny hydrogen leaks can be found, and maintenance measures are taken to eliminate hidden dangers and reduce the inspection load of personnel.

In combination with the control device 26 described below, especially when starting the hydrogenation device, the control device 26 sends a request to the main station. For example, the main station itself performs a safety inspection and gives an “OK” signal, and the hydrogenation device passes the self-inspection, that is, the pressure is used. The transmitter and the pressure gauge complete the aforementioned detection operations, and transmit the information to the control device 26, and the control device 26 transmits it to the main station. After the two handshake, the hydrogenation device can normally open the hydrogenation function, otherwise it will not be opened for the second time. Control valve 6 to better ensure the safety of hydrogenation.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 2 , the body further includes an explosion-proof junction box 15 and the above-mentioned control device 26 disposed in the explosion-proof junction box 15 , and the control device 26 is respectively connected with the explosion-proof junction box 15 . The second control valve 6, the electrical components on the first conveying path 111 and the electrical components on the second conveying path 112 are connected, so the operation is simpler, more convenient, and more intelligent. 26 As an intermediary, a hierarchical control mechanism has been formed to better centralize management and control.

Among them, as mentioned above, the electrical components on the first delivery path 111 specifically refer to the first pressure transmitter 11 and the first pressure gauge 12; the electrical components on the second delivery path 112 specifically refer to the flow meter 7, the air control valve, The second pressure transmitter 13 and the second pressure gauge 14 .

Especially when an emergency occurs, the control device 26 controls the venting valve 9 to open to realize automatic venting. It can be seen that in an emergency, there is no need for personnel to vent manually, which improves safety.

Wherein, optionally, the hydrogenation device may further include a gas detector 18, which is connected to the control device 26 to further detect whether there is hydrogen leakage.

Wherein, optionally, the hydrogenation device further includes a signal wire box 23 for accommodating cables, so as to avoid the cables being cluttered.

In this embodiment, preferably, as shown in FIG. 1 and FIG. 2 , the hydrogenation device further includes an operating table, the operating table and the main body are independently spaced apart, and the operating table is communicatively connected to the control device 26 of the main body. The operation and the main body are set at an independent interval, and the console can be placed in the safe area for operation. The above control process can be operated on the console in the safe area to ensure the safety of the operator. For example, GB50516 stipulates that the hydrogen refueling machine The main body, the gas storage cylinder group, and the compressor are in zone 1, and the outside of these equipment is zone 2, that is, the safe zone is 4.5 meters away, and the console must not be installed in zone 1 at least.

In summary, the hydrogenation unit has the following advantages:

The hydrogenation unit adopts a double-gun single-line structure, which is compact in structure, small in volume and small in mass, convenient for transportation, and saves pipelines and reduces costs;

The hydrogenation unit has a self-leakage detection function to ensure that tiny hydrogen leaks can be found, and maintenance measures are taken to eliminate hidden dangers and reduce personnel inspection load;

The hydrogenation unit and the terminal establish a handshake mechanism. When starting the hydrogenation unit, the hydrogenation unit sends a request to the terminal. For example, the terminal safety inspection gives an "OK" signal (here, the safety inspection includes the control and detection equipment of the terminal to the gas source, that is, the gas storage. Check whether the gas volume is sufficient at the bottle group), and the hydrogenation device passes the self-test. After the two shake hands, the hydrogenation device can be opened normally and the hydrogenation function can be performed. Otherwise, the second control valve 6 will not be opened to better ensure the safety of hydrogenation;

The hydrogenation unit adopts automatic venting, and in an emergency, there is no need for personnel to manually vent it to improve safety.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.

Claims (10)

1. A hydrogenation device is used for conveying hydrogen provided by a gas cylinder group or hydrogen provided by a gas source to equipment to be inflated, wherein the gas cylinder group comprises at least three gas cylinders, and is characterized by comprising a body, wherein the body is provided with a gas conveying path, the input end of the gas conveying path is respectively communicated with the at least three gas cylinders, at least one first control valve is respectively arranged between the gas conveying path and at least two of the at least three gas cylinders, and the at least one first control valve is arranged outside the body; the gas transmission path is provided with at least one second control valve;

and the output end of the gas transmission path is connected with a hydrogenation assembly for supplying hydrogen to the equipment to be inflated.

2. The hydrogenation apparatus of claim 1, wherein the number of said gas-conveying paths is only one.

3. The hydrogenation apparatus according to claim 1, wherein the second control valve divides the gas transport path into a first transport path and a second transport path, the first transport path and the second transport path being capable of communicating in series.

4. The hydrogenation apparatus according to claim 3, wherein the body is provided with a vent path communicating with the second transport path via a first main branch path and a second main branch path, respectively;

the emptying path is communicated with the second conveying path through the first main branch path and the first secondary branch path in sequence, and an emptying valve is arranged on the first secondary branch path.

5. The hydrogenation apparatus according to claim 4, wherein a safety valve is provided on the second main branch path, and the safety valve is provided in parallel with the blow valve.

6. The hydrogenation apparatus according to claim 5, wherein the blow-down valve and the second control valve are both pneumatic control valves;

the body is provided with instrument gas route, instrument gas route respectively with the atmospheric valve and the second control valve is linked together, just instrument gas route is provided with instrument gas hand valve and instrument gas filter.

7. The hydrogenation apparatus according to claim 4, wherein the hydrogenation assembly comprises a first hydrogenation assembly and a second hydrogenation assembly, and the first hydrogenation assembly and the second hydrogenation assembly are connected in parallel to the output end of the second conveying path;

the first hydrogenation assembly comprises a first breaking valve and a first hydrogenation gun which are sequentially connected, and the first breaking valve is communicated with the output end of the second conveying path; the emptying path is communicated with the first hydrogenation gun through the first main branch path and the second branch path in sequence;

the second hydrogenation assembly comprises a second break valve and a second hydrogenation gun which are sequentially connected, and the second break valve is communicated with the output end of the second conveying path; the emptying path is communicated with the second hydrogenation gun through the first main branch path and the third branch path in sequence.

8. The hydrogenation apparatus according to claim 3, wherein the first transport path and/or the second transport path is provided with a flow meter.

9. The hydrogenation device according to any one of claims 3 to 8, wherein the body further comprises an explosion-proof junction box and a control device provided in the explosion-proof junction box, the control device being connected to the second control valve, the electrical component on the first transport path, and the electrical component on the second transport path, respectively;

the hydrogenation device also comprises an operation platform, wherein the operation platform is independently and separately arranged from the body, and the operation platform is in communication connection with the control device of the body.

10. The hydrogenation apparatus according to any one of claims 1 to 8, further comprising a gas compression device connectable to the gas inlet end of the gas storage bottle group and the input end of the gas transmission path via a gas transmission line, respectively.

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