阅读说明：本技术 一种加氢系统及使用方法 (Hydrogenation system and use method ) 是由 方沛军 宣锋 姜方 伍远安 曹俊 于 2021-03-30 设计创作，主要内容包括：本发明公开了一种加氢系统及使用方法,属于加氢技术领域。所述加氢系统包括储气罐、备用储气组件和加氢枪,备用储气组件包括蓄能器、第一换向阀、第二换向阀和第三换向阀,蓄能器中可活动地插装有挡板,以将蓄能器划分为蓄能腔和弹性腔,弹性腔中安装有弹性件,以驱动挡板移动,第一换向阀的第一气口和储气罐的出气口连通,第一换向阀的第二气口与蓄能器的蓄能腔连通,第二换向阀的第一气口和储气罐的出气口连通,第二换向阀的第二气口和加氢枪连通,第三换向阀的第一气口与蓄能器的蓄能腔连通,第三换向阀的第二气口与加氢枪连通。本发明提供的加氢系统不仅能在正常状态下实现加氢作业,还能在应急状态下实现加氢作业。(The invention discloses a hydrogenation system and a using method thereof, belonging to the technical field of hydrogenation. The hydrogenation system comprises a gas storage tank, a standby gas storage assembly and a hydrogenation gun, wherein the standby gas storage assembly comprises an energy accumulator, a first reversing valve, a second reversing valve and a third reversing valve, a baffle is movably inserted in the energy accumulator to divide the energy accumulator into an energy storage cavity and an elastic cavity, an elastic piece is installed in the elastic cavity to drive the baffle to move, a first gas port of the first reversing valve is communicated with a gas outlet of the gas storage tank, a second gas port of the first reversing valve is communicated with the energy storage cavity of the energy accumulator, a first gas port of the second reversing valve is communicated with the gas outlet of the gas storage tank, a second gas port of the second reversing valve is communicated with the hydrogenation gun, a first gas port of the third reversing valve is communicated with the energy storage cavity of the energy accumulator, and a second gas port of the third reversing valve is communicated with the hydrogenation gun. The hydrogenation system provided by the invention can realize hydrogenation operation in a normal state and can also realize hydrogenation operation in an emergency state.)

1. The hydrogenation system is characterized by comprising a gas storage tank (1), a spare gas storage assembly (2) and a hydrogenation gun (3);

a control valve (11) is arranged at an air outlet of the air storage tank (1) to control the on-off of the air storage tank (1);

the spare gas storage assembly (2) comprises an energy accumulator (21), a first reversing valve (22), a second reversing valve (23) and a third reversing valve (24), a baffle is movably inserted in the energy accumulator (21) to divide the energy accumulator (21) into an energy storage cavity (211) and an elastic cavity (212), an elastic piece is installed in the elastic cavity (212) to drive the baffle to move, a first gas port of the first reversing valve (22) is communicated with a gas outlet of the gas storage tank (1), a second gas port of the first reversing valve (22) is communicated with the energy storage cavity (211) of the energy accumulator (21), a first gas port of the second reversing valve (23) is communicated with a gas outlet of the gas storage tank (1), a second gas port of the second reversing valve (23) is communicated with a gas inlet of the hydrogenation gun (3), and a first gas port of the third reversing valve (24) is communicated with the energy storage cavity (211) of the energy accumulator (21), and a second gas port of the third reversing valve (24) is communicated with a gas inlet of the hydrogenation gun (3).

2. A hydrogenation system according to claim 1, wherein said first direction valve (22), said second direction valve (23) and said third direction valve (24) are all electromagnetic direction valves.

3. A hydrogenation system according to claim 2, further comprising a control assembly (4), wherein the control assembly (4) comprises a pressure sensor (41) and a controller (42), the pressure sensor (41) is used for monitoring the pressure at the gas outlet of the gas storage tank (1), and the controller (42) is electrically connected with the pressure sensor (41), the first direction valve (22), the second direction valve (23) and the third direction valve (24), respectively.

4. A hydrogenation system according to claim 3, wherein the control unit (4) further comprises an alarm (43), and the alarm (43) is electrically connected to the controller (42).

5. A hydrogenation system according to any one of claims 1-4, further comprising a check valve (5), wherein the first gas port of the check valve (5) is communicated with the second gas port of the second change-over valve (23) and the second gas port of the third change-over valve (24), respectively, and the second gas port of the check valve (5) is communicated with the gas inlet of the hydrogenation gun (3).

6. A hydrogenation system according to any of claims 1-4, characterized in that the hydrogenation system further comprises a flow meter (6), and the flow meter (6) is located at the gas inlet of the hydrogenation lance (3) for monitoring the flow rate.

7. A hydrogenation system according to any one of claims 1-4, further comprising a hydrogen filter (7), wherein a first gas port of the hydrogen filter (7) is communicated with a gas outlet of the gas storage tank (1), and a second gas port of the hydrogen filter (7) is communicated with a first gas port of the first change-over valve (22) and a first gas port of the second change-over valve (23), respectively.

8. A method of using a hydrogenation system, the method based on the hydrogenation system of claim 1, the method comprising:

-opening the control valve (11);

the first reversing valve (22) is placed in a passage state to charge the energy storage cavity (211) of the energy accumulator (21) through the gas storage tank (1), and the first reversing valve (22) is placed in a disconnection state after the charging is completed;

the second reversing valve (23) is placed in a passage state, so that gas is added to equipment to be hydrogenated through the hydrogenation gun (3), the pressure in the gas storage tank (1) is higher than a threshold value, and the hydrogenation system is in a normal state;

and (3) putting the second reversing valve (23) in an off state, putting the third reversing valve (24) in an on state, so as to add gas into equipment to be hydrogenated through the hydrogenation gun (3), wherein the pressure in the gas storage tank (1) is not higher than the threshold value, and the hydrogenation system is in an emergency state.

Technical Field

The invention belongs to the technical field of hydrogenation, and particularly relates to a hydrogenation system and a using method thereof.

Background

With the gradual development of the technical field of vehicle control, the hydrogen fuel electric automobile is increasingly popular as a new vehicle, and the popularity of the hydrogen fuel electric automobile is continuously increased. Energy conservation, emission reduction and development of new energy automobiles are well known in the automobile field, and the fuel of the hydrogen fuel electric automobile is mainly derived from hydrogen, so that the hydrogenation system is particularly important for the hydrogen fuel electric automobile.

In the related art, a conventional hydrogenation system mainly comprises a gas storage tank, a conveying pipeline and a hydrogenation gun, wherein the gas storage tank, the conveying pipeline and the hydrogenation gun are sequentially communicated. The hydrogen pressure in the gas storage tank is higher, and the hydrogen can be directly hydrogenated for the hydrogen fuel electric automobile through the hydrogenation gun.

However, in the hydrogenation process of the hydrogenation system, the pressure of the gas storage tank can be gradually reduced, so that the hydrogenation cannot be effectively performed when the pressure in the gas storage tank is low or the gas storage tank fails to give vent to air, and the hydrogenation cannot be performed under emergency conditions.

Disclosure of Invention

In view of the above defects or improvement needs of the prior art, the present invention provides a hydrogenation system and a use method thereof, which aims to realize hydrogenation operation in emergency situations, thereby solving the technical problem that hydrogenation cannot be performed in emergency situations.

In a first aspect, the invention provides a hydrogenation system, which comprises a gas storage tank, a spare gas storage assembly and a hydrogenation gun;

a control valve is arranged at an air outlet of the air storage tank to control the on-off of the air storage tank;

the spare gas storage assembly comprises an energy accumulator, a first reversing valve, a second reversing valve and a third reversing valve, a baffle is movably inserted in the energy accumulator to divide the energy accumulator into an energy storage cavity and an elastic cavity, an elastic piece is installed in the elastic cavity to drive the baffle to move, a first gas port of the first reversing valve is communicated with a gas outlet of a gas storage tank, a second gas port of the first reversing valve is communicated with the energy storage cavity of the energy accumulator, a first gas port of the second reversing valve is communicated with a gas outlet of the gas storage tank, a second gas port of the second reversing valve is communicated with a gas inlet of the hydrogenation gun, a first gas port of the third reversing valve is communicated with the energy storage cavity of the energy accumulator, and a second gas port of the third reversing valve is communicated with a gas inlet of the hydrogenation gun.

Optionally, the first direction valve, the second direction valve and the third direction valve are all electromagnetic direction valves.

Optionally, the hydrogenation system further comprises a control assembly, the control assembly comprises a pressure sensor and a controller, the pressure sensor is used for monitoring the pressure at the gas outlet of the gas storage tank, and the controller is electrically connected with the pressure sensor, the first reversing valve, the second reversing valve and the third reversing valve respectively.

Optionally, the control assembly further comprises an alarm, and the alarm is electrically connected with the controller.

Optionally, the hydrogenation system further comprises a check valve, a first air port of the check valve is respectively communicated with the second air port of the second reversing valve and the second air port of the third reversing valve, and a second air port of the check valve is communicated with the air inlet of the hydrogenation gun.

Optionally, the hydrogenation system further comprises a flow meter located at the gas inlet of the hydrogenation gun to monitor the flow rate.

Optionally, the hydrogenation system further comprises a hydrogen filter, a first gas port of the hydrogen filter is communicated with a gas outlet of the gas storage tank, and a second gas port of the hydrogen filter is respectively communicated with the first gas port of the first reversing valve and the first gas port of the second reversing valve.

In a second aspect, the present invention provides a method for using a hydrogenation system, the method for using the hydrogenation system being based on the hydrogenation system of the first aspect, the method for using the hydrogenation system comprising:

opening the control valve;

placing the first reversing valve in a closed-circuit state to charge the energy storage cavity of the energy accumulator through the air storage tank, and placing the first reversing valve in a closed-circuit state after the charging is finished;

placing the second reversing valve in a passage state to feed gas into equipment to be hydrogenated through the hydrogenation gun, wherein the pressure in the gas storage tank is higher than a threshold value, and the hydrogenation system is in a normal state;

and the second reversing valve is in an open circuit state, the third reversing valve is in a closed circuit state, so that gas is added to equipment to be hydrogenated through the hydrogenation gun, at the moment, the pressure in the gas storage tank is not higher than the threshold value, and the hydrogenation system is in an emergency state.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

for a hydrogenation system provided by the embodiment of the invention, before use, the control valve is firstly opened. Then, the first reversing valve is placed in a closed-circuit state to charge the energy storage cavity of the energy accumulator through the gas storage tank, and after the charging is finished, the first reversing valve is placed in a closed-circuit state, so that a part of high-pressure hydrogen is stored in the energy accumulator (at the moment, the elastic member is compressed, and the pressure of the hydrogen in the energy storage cavity is higher), and the first reversing valve can be automatically started under the elastic force of the elastic member in the emergency situation.

And under a normal state, the second reversing valve is placed in a passage state to fill gas into the equipment to be hydrogenated through the hydrogenation gun, so that the gas filling is conveniently completed.

Under emergency state (when pressure is lower in the gas holder or the gas holder gives vent to anger the trouble), will state the second switching-over valve and place the state of opening circuit in, the state of access is placed in to the third switching-over valve, thereby the energy storage chamber through the energy storage ware communicates with direct hydrogenation rifle, push the baffle and remove under the elastic force effect of elastic component this moment, extrude the energy storage chamber with certain pressure with hydrogen, and then just also can give under emergency state and treat that hydrogenation equipment carries out effective hydrogenation, so not only can meet an emergency, and do not influence the normal hydrogenation operation of system, can also give relevant operator a period of reaction and come to pressurize and aerify for the gas holder.

That is to say, the hydrogenation system provided by the invention not only can effectively realize hydrogenation operation in a normal state, but also can effectively realize hydrogenation operation in an emergency state, thereby improving the reliability of the hydrogenation system.

Drawings

FIG. 1 is a schematic structural diagram of a hydrogenation system according to an embodiment of the present invention.

FIG. 2 is a flow chart of a method of using a hydrogenation system in accordance with an embodiment of the present invention.

The symbols in the drawings represent the following meanings:

1. a gas storage tank; 11. a control valve; 2. a standby gas storage component; 21. an accumulator; 211. an energy storage cavity; 212. an elastic cavity; 22. a first direction changing valve; 23. a second directional control valve; 24. a third directional control valve; 3. a hydrogenation gun; 4. a control component; 41. a pressure sensor; 42. a controller; 43. an alarm; 5. a one-way valve; 6. a flow meter; 7. a hydrogen filter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 is a schematic structural diagram of a hydrogenation system according to an embodiment of the present invention, and as shown in fig. 1, the hydrogenation system includes a gas storage tank 1, a spare gas storage assembly 2, and a hydrogenation gun 3.

And a control valve 11 is arranged at the air outlet of the air storage tank 1 to control the on-off of the air storage tank 1.

The spare gas storage assembly 2 comprises an energy accumulator 21, a first reversing valve 22, a second reversing valve 23 and a third reversing valve 24, a baffle is movably inserted in the energy accumulator 21 to divide the energy accumulator 21 into an energy storage cavity 211 and an elastic cavity 212, an elastic piece is installed in the elastic cavity 212 to drive the baffle to move, a first gas port of the first reversing valve 22 is communicated with a gas outlet of the gas storage tank 1, a second gas port of the first reversing valve 22 is communicated with the energy storage cavity 211 of the energy accumulator 21, a first gas port of the second reversing valve 23 is communicated with a gas outlet of the gas storage tank 1, a second gas port of the second reversing valve 23 is communicated with a gas inlet of the hydrogenation gun 3, a first gas port of the third reversing valve 24 is communicated with the energy storage cavity 211 of the energy accumulator 21, and a second gas port of the third reversing valve 24 is communicated with a gas inlet of the hydrogenation gun 3.

For a hydrogenation system provided in the embodiment of the present invention, before use, the control valve 11 is first opened. Then, the first direction changing valve 22 is set to the on state to charge the energy storage chamber 211 of the energy storage 21 through the gas storage tank 1, and after the charging is completed, the first direction changing valve 22 is set to the off state, so that a part of the high-pressure hydrogen is stored in the energy storage 21 (at this time, the elastic member is compressed, and the pressure of the hydrogen in the energy storage chamber 211 is higher), so as to be automatically activated under the elastic force of the elastic member in the emergency situation.

In a normal state, the second reversing valve 23 is set in a passage state to fill gas into the equipment to be hydrogenated through the hydrogenation gun 3, so that the gas filling is conveniently completed.

Under emergency state (when pressure is lower in the gas holder 1 or the gas holder 1 gives vent to anger the trouble), will state second switching-over valve 23 and place the off-circuit state in, third switching-over valve 24 places the access state in, thereby energy storage chamber 211 through energy storage ware 21 communicates with direct hydrogenation rifle 3, push the baffle and remove under the elastic force effect of elastic component this moment, extrude energy storage chamber 211 with certain pressure with hydrogen, and then just also can effectively hydrogenate for the hydrogenation equipment under emergency state, so not only can be emergent, and do not influence the normal hydrogenation operation of system, can also give relevant operator a period of reaction time and come to pressurize and aerify for gas holder 1.

That is to say, the hydrogenation system provided by the invention not only can effectively realize hydrogenation operation in a normal state, but also can effectively realize hydrogenation operation in an emergency state, thereby improving the reliability of the hydrogenation system.

In the present embodiment, the first direction valve 22, the second direction valve 23, and the third direction valve 24 are all electromagnetic direction valves.

In the above embodiment, the first direction valve 22, the second direction valve 23 and the third direction valve 24 are all electromagnetic direction valves for easy control, thereby saving manpower.

With continued reference to fig. 1, the hydrogenation system further includes a control assembly 4, the control assembly 4 includes a pressure sensor 41 and a controller 42, the pressure sensor 41 is used for monitoring the pressure at the air outlet of the gas storage tank 1, and the controller 42 is electrically connected to the pressure sensor 41, the first direction valve 22, the second direction valve 23 and the third direction valve 24, respectively.

In the above embodiment, the pressure sensor 41 and the controller 42 can automatically control the first direction valve 22, the second direction valve 23, and the third direction valve 24.

Illustratively, when the pressure sensor 41 detects that the pressure at the air outlet of the air storage tank 1 is P1, the controller 42 receives the signal from the pressure sensor 41, so as to control the valve element of the first direction valve 22 to be in the up position (at this time, the second direction valve 23 and the third direction valve 24 are in the open state), thereby charging the accumulator 21. When the pressure sensor 41 detects that the pressure at the air outlet of the air storage tank 1 is P2 (P2 < P1), the controller 42 receives the signal of the pressure sensor 41, so as to control the valve core of the first change valve 22 to be positioned at the lower position and control the valve core of the second change valve 23 to be positioned at the upper position, and further realize normal gas filling operation through the hydrogenation gun 3. With the gas filling operation, when the pressure sensor 41 detects that the pressure at the gas outlet of the gas storage tank 1 is P3 (P3 < P2), and the pressure of hydrogen in the storage tank pipe is not enough to perform effective hydrogenation at this time, the controller 42 receives a signal from the pressure sensor 41, so as to control the valve element of the second directional valve 23 to be placed at the lower position and control the valve element of the second directional valve 23 to be placed at the upper position, and further perform hydrogenation operation in an emergency state by using the hydrogen in the energy storage device 21.

Optionally, the control assembly 4 further comprises an alarm 43, and the alarm 43 is electrically connected to the controller 42.

In the above embodiment, the alarm 43 can give an alarm when the pressure in the gas tank 1 is low, so as to remind the operator to pressurize and inflate the gas tank 1 in time.

Illustratively, the alarm 43 may be a buzzer.

In this embodiment, the hydrogenation system further includes a check valve 5, a first gas port of the check valve 5 is respectively communicated with a second gas port of the second directional valve 23 and a second gas port of the third directional valve 24, and a second gas port of the check valve 5 is communicated with a gas inlet of the hydrogenation gun 3.

In the above embodiment, the check valve 5 can prevent the hydrogen gas from flowing backward.

Optionally, the hydrogenation system further comprises a flow meter 6, and the flow meter 6 is located at the air inlet of the hydrogenation gun 3, so that the gas filling flow of the hydrogenation gun 3 can be monitored in real time.

Optionally, the hydrogenation system further comprises a hydrogen filter 7, a first gas port of the hydrogen filter 7 is communicated with a gas outlet of the gas storage tank 1, and a second gas port of the hydrogen filter 7 is respectively communicated with a first gas port of the first reversing valve 22 and a first gas port of the second reversing valve 23.

In the above embodiment, the hydrogen filter 7 can filter and purify the hydrogen gas flowing out of the gas tank 1, and the problem of malfunction due to the influence of impurities on the valve bodies is avoided.

In this embodiment, the valve bodies in the hydrogenation system of the present invention are connected to each other by a pipeline, and the pipeline has a refractory characteristic.

Fig. 2 is a flow chart of a method for using a hydrogenation system according to an embodiment of the present invention, as shown in fig. 2, the method for using the hydrogenation system is based on the above, and the method for using the hydrogenation system includes:

s201, opening the control valve 11.

S202, the first reversing valve 22 is set in a closed state to charge the energy storage cavity 211 of the energy storage device 21 through the air storage tank 1, and the first reversing valve 22 is set in an open state after the charging is finished.

Note that, at this time, the second direction switching valve 23 and the third direction switching valve 24 are in the open state (i.e., the spool is in the down state).

And S203, placing the second reversing valve 23 in a passage state to add gas to the equipment to be hydrogenated through the hydrogenation gun 3.

In step S203, the pressure in the gas holder 1 is higher than the threshold value (P3), and the hydrogenation system is in a normal state.

And S204, the second reversing valve 23 is in an open circuit state, and the third reversing valve 24 is in a closed circuit state, so that gas is added to the equipment to be hydrogenated through the hydrogenation gun 3.

In step S204, the pressure in the gas storage tank 1 is not higher than the threshold value (P3), and the hydrogenation system is in an emergency state.

For the use method of the hydrogenation system provided by the embodiment of the invention, firstly, the control valve 11 is opened. Then, the first direction changing valve 22 is set to the on state to charge the energy storage chamber 211 of the energy storage 21 through the gas storage tank 1, and after the charging is completed, the first direction changing valve 22 is set to the off state, so that a part of the high-pressure hydrogen is stored in the energy storage 21 (at this time, the elastic member is compressed, and the pressure of the hydrogen in the energy storage chamber 211 is higher), so as to be automatically activated under the elastic force of the elastic member in the emergency situation.

And then, in a normal state, the second reversing valve 23 is placed in a passage state to fill gas into the equipment to be hydrogenated through the hydrogenation gun 3, so that the gas filling is conveniently completed.

Finally, in the emergency state (when the pressure in the gas storage tank 1 is lower or the gas storage tank 1 fails to give vent to anger), the second reversing valve 23 is in the open circuit state, the third reversing valve 24 is in the open circuit state, so that the energy storage cavity 211 of the energy accumulator 21 is communicated with the direct hydrogenation gun 3, the baffle is pushed to move under the elastic force action of the elastic part, hydrogen is pressed out of the energy storage cavity 211 at a certain pressure, and then the equipment to be hydrogenated can be effectively hydrogenated under the emergency state, so that the emergency state can be realized, and the gas storage tank 1 can be pressurized and inflated within a certain reaction time for a relevant operator.

In other words, the use method of the hydrogenation system provided by the invention can effectively realize hydrogenation operation in a normal state and can also effectively realize hydrogenation operation in an emergency state, so that the reliability of the hydrogenation system is improved.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.