An integrated organic solute hydrogenation station system

Abstract

The present invention discloses an integrated organic solute hydrogenation station system, including a hydrogen oil tank, a dehydrogenation device and a supercharging device, the supercharging device including a heat exchanger, the heat exchanger is used to cool the supercharged hydrogen, the heat exchanger including a hydrogen inlet end, a hydrogen outlet end, a hydrogen oil inlet end and a hydrogen oil outlet end, the hydrogen oil inlet end is connected to the hydrogen oil tank through a pipeline, the hydrogen oil outlet end is connected to the inlet of the dehydrogenation device through a pipeline, the supercharged hydrogen is connected to the hydrogen inlet end through a pipeline, a hydrogen oil channel is formed between the hydrogen oil inlet end and the hydrogen oil outlet end, a hydrogen channel is formed between the hydrogen inlet end and the hydrogen outlet end, and the hydrogen oil in the hydrogen oil channel and the hydrogen in the hydrogen channel can perform non-contact heat exchange. The outlet of the hydrogen oil tank and the inlet of the dehydrogenation device are connected to the heat exchanger of the supercharging device, so that the hydrogen oil in the hydrogen oil tank directly enters the heat exchanger for preheating, so that the heat released by the cooling of the high-pressure gaseous hydrogen in the supercharging device is recycled and utilized, saving energy.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogenation stations, and in particular to an integrated organic solute hydrogenation station system. Background Art

[0002] Hydrogen refueling sites refer to places that provide hydrogen to fuel cell vehicles. Hydrogen is a clean fuel with little impact on the environment and is currently a popular fuel.

[0003] The existing hydrogen refueling sites at home and abroad mainly use high-pressure gaseous hydrogen for hydrogenation. One way is that the gas source of the gaseous hydrogen refueling site is mainly transported from the hydrogen production plant to the hydrogenation site by a 20MPa torpedo truck, and the hydrogenation site is pressurized to 45MPa or 90MPa through a series of equipment to provide hydrogen for fuel cell vehicles; another way is to solve the problem of low hydrogen density in gaseous hydrogen storage and transportation, and to pressurize it to high-pressure hydrogen through organic solute hydrogen storage. Under this operation method, the organic solute containing hydrogen (abbreviated as: hydrogen oil) is transported to the hydrogenation site, and the hydrogen and organic liquid are separated by heating and catalysis. The hydrogen is increased to a certain pressure by a booster compressor, and then pressurized to the required pressure for fuel cell vehicle refueling and storage at the hydrogenation site by a high-pressure compressor. Finally, the hydrogenator provides hydrogen to the fuel cell vehicle.

[0004] However, when the organic solute is heated, a large heat source and energy are consumed, which makes the cost of this method high.

[0005] Therefore, how to provide an integrated organic solute hydrogenation station system that can avoid the above-mentioned disadvantages has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] To achieve the above objectives, the present invention provides an integrated organic solute hydrogenation station system.

[0007] An integrated organic solute hydrogenation station system, comprising a hydrogen oil tank, a dehydrogenation device and a pressurizing device, wherein the hydrogen oil tank is used to store liquid hydrogen, the dehydrogenation device is used to convert liquid hydrogen into low-pressure gaseous hydrogen, the pressurizing device is used to pressurize the low-pressure gaseous hydrogen to high-pressure gaseous hydrogen, the outlet of the dehydrogenation device is connected to the inlet of the pressurizing device to provide the low-pressure gaseous hydrogen to the pressurizing device, the pressurizing device comprises a heat exchanger, the heat exchanger is used to cool the pressurized hydrogen, the heat exchanger comprises a hydrogen inlet end, ... An outlet end, a hydrogen-oil inlet end and a hydrogen-oil outlet end, the hydrogen-oil inlet end is connected to the hydrogen-oil tank through a pipeline, the hydrogen-oil outlet end is connected to the inlet of the dehydrogenation device through a pipeline, the pressurized hydrogen is connected to the hydrogen inlet end through a pipeline, the hydrogen outlet end is used to discharge the hydrogen after cooling, a hydrogen-oil channel is formed between the hydrogen-oil inlet end and the hydrogen-oil outlet end, a hydrogen channel is formed between the hydrogen inlet end and the hydrogen outlet end, and the hydrogen-oil in the hydrogen-oil channel and the hydrogen in the hydrogen channel can perform non-contact heat exchange.

[0008] Preferably, the heat exchanger is a shell and tube heat exchanger;

[0009] The tube side of the shell and tube heat exchanger is the hydrogen channel, and the shell side of the shell and tube heat exchanger is the hydrogen-oil channel, or the tube side of the shell and tube heat exchanger is the hydrogen-oil channel, and the shell side of the shell and tube heat exchanger is the hydrogen channel.

[0010] Preferably, the boosting device comprises a first boosting part and a second boosting part located downstream of the first boosting part, the first boosting part comprises a primary pressurizing component, a primary heat exchanger, a secondary pressurizing component and a secondary heat exchanger, the second boosting part comprises a tertiary pressurizing component and a tertiary heat exchanger, the primary pressurizing component, the primary heat exchanger, the secondary pressurizing component, the secondary heat exchanger, the tertiary pressurizing component and the tertiary heat exchanger are sequentially connected according to the flow direction of the hydrogen, and the primary heat exchanger, the secondary heat exchanger and the tertiary heat exchanger constitute the heat exchanger;

[0011] The primary heat exchanger includes a primary hydrogen inlet, a primary hydrogen outlet, a primary hydrogen-oil inlet and a primary hydrogen-oil outlet; the secondary heat exchanger includes a secondary hydrogen inlet, a secondary hydrogen outlet, a secondary hydrogen-oil inlet and a secondary hydrogen-oil outlet; the tertiary heat exchanger includes a tertiary hydrogen inlet, a tertiary hydrogen outlet, a tertiary hydrogen-oil inlet and a tertiary hydrogen-oil outlet; the outlet of the hydrogen-oil tank is connected to the primary hydrogen-oil inlet, the secondary hydrogen-oil inlet and the tertiary hydrogen-oil inlet respectively through three branch pipelines; the primary hydrogen-oil outlet, the secondary hydrogen-oil outlet and the tertiary hydrogen-oil outlet are connected to the inlet of the dehydrogenation device through three corresponding branch pipelines.

[0012] Preferably, the hydrogenation system further comprises a hydrogenation machine, which is connected to the hydrogen outlet and is used to add hydrogen to the hydrogenation vehicle.

[0013] Preferably, a separator, an adsorber and a buffer tank connected in sequence are further provided between the dehydrogenation device and the booster device, the separator comprising a separation tank body, a gas discharge hole being provided at the top of the separation tank body, a liquid discharge hole being provided at the bottom of the separation tank body, the low-pressure gaseous hydrogen mixed with hydrogen oil discharged from the dehydrogenation device enters the separation tank body, the low-pressure gaseous hydrogen is discharged through the gas discharge hole, the liquid discharge hole of the separation tank body is connected to another hydrogen oil tank through a pipeline, the hydrogen oil is discharged to the other hydrogen oil tank through the liquid discharge hole, the adsorber comprises an adsorption tank body and an impurity storage tank disposed in the adsorption tank body. Adsorption material, a gas inlet is provided on the top of the adsorption tank body, a gas outlet and an impurity outlet are provided on the bottom of the adsorption tank body, the gas discharge hole is connected to the gas inlet through a pipeline, the low-pressure gaseous hydrogen mixed with impurities discharged from the gas discharge hole of the separation tank body enters the adsorption tank body through the gas inlet, the impurity adsorption material adsorbs impurities and discharges them through the impurity outlet, and the low-pressure gaseous hydrogen is discharged through the gas outlet, the buffer tank is provided with a buffer gas inlet and a buffer gas outlet, a buffer discharge outlet is provided at the bottom of the buffer tank, and the gas outlet of the adsorption tank body is connected to the buffer gas inlet through a pipeline.

[0014] Preferably, the liquid discharge hole, the impurity outlet and the buffer discharge outlet are connected to a sewage discharge container through corresponding branch pipes.

[0015] Preferably, the hydrogen oil tank is connected to the inlet of the dehydrogenation device through a prepared pipeline.

[0016] The integrated organic solute hydrogenation station system provided by the present invention has the following technical effects:

[0017] In the hydrogenation system, the outlet of the hydrogen oil tank and the inlet of the dehydrogenation device are connected to the heat exchanger of the booster device, so that the hydrogen oil in the hydrogen oil tank directly enters the heat exchanger for preheating, so that the heat released by the cooling of the high-pressure gaseous hydrogen in the booster device is recycled. This arrangement uses the hydrogen oil as the cold medium of the heat exchanger, which can replace the additional cold medium input in the prior art, greatly reducing the cost. At the same time, the heat released by the cooling of the high-pressure gaseous hydrogen is used for preheating the hydrogen oil, and the preheated hydrogen oil can enter the dehydrogenation device, which can save the heat used by the original dehydrogenation device for heating the hydrogen oil and save energy.

[0018] Preferably, the heat exchanger is a shell and tube heat exchanger, which is more commonly used, but is of course not limited to this. Any equipment that can provide heat exchange between the two can be used.

[0019] Preferably, the heat exchanger after each pressurizing component provides heat to the hydrogen oil, fully realizing energy recovery and reuse.

[0020] Preferably, the setting of the separator can further separate the hydrogen oil and hydrogen, and discharge the excess impurities, such as liquid water, through the adsorber to purify the hydrogen. The setting of the buffer tank can buffer the hydrogen pressure fluctuation and make the system work more smoothly.

[0021] Preferably, the provision of a preparatory pipeline allows the hydrogen oil to enter the dehydrogenation device directly from the hydrogen oil tank (this operation is provided to cope with the situation where a heat exchanger fails, in which case the hydrogen oil can directly enter the dehydrogenation device). BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides an integrated organic solute hydrogenation station system according to a specific embodiment of the present invention.

[0023] Figure 1 The accompanying drawings are denoted as follows:

[0024] 1 hydrogen oil tank, 2 dehydrogenation device, 3 booster device, 4 first booster, 5 second booster, 6 primary pressurizing component, 7 primary heat exchanger, 8 secondary pressurizing component, 9 secondary heat exchanger, 10 tertiary pressurizing component, 11 tertiary heat exchanger, 12 separator, 13 adsorber, 14 buffer tank, 15 another hydrogen oil tank, 16 sewage container. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, a structural schematic diagram of a specific implementation of an integrated organic solute hydrogenation station system provided by the present invention.

[0026] An integrated organic solute hydrogenation station system, comprising a hydrogen oil tank 1, a dehydrogenation device 2 and a booster device 3, wherein the hydrogen oil tank 1 is used to store liquid hydrogen, the dehydrogenation device 2 is used to convert liquid hydrogen into low-pressure gaseous hydrogen, the booster device 3 is used to boost the low-pressure gaseous hydrogen to high-pressure gaseous hydrogen, the outlet of the dehydrogenation device 2 is connected to the inlet of the booster device 3 to provide the low-pressure gaseous hydrogen to the booster device 3, the booster device 3 comprises a heat exchanger, the heat exchanger is used to cool the pressurized hydrogen, and the heat exchanger comprises a hydrogen inlet The hydrogen oil inlet end is connected to the hydrogen oil tank 1 through a pipeline, and the hydrogen oil outlet end is connected to the inlet of the dehydrogenation device 2 through a pipeline. The pressurized hydrogen is connected to the hydrogen inlet end through a pipeline, and the hydrogen outlet end is used to discharge the hydrogen after cooling. A hydrogen oil channel is formed between the hydrogen oil inlet end and the hydrogen oil outlet end, and a hydrogen channel is formed between the hydrogen inlet end and the hydrogen outlet end. The hydrogen oil in the hydrogen oil channel and the hydrogen in the hydrogen channel can perform non-contact heat exchange.

[0027] In the integrated organic solute hydrogenation station system, the outlet of the hydrogen oil tank 1 and the inlet of the dehydrogenation device 2 are connected to the heat exchanger of the booster 3, so that the hydrogen oil in the hydrogen oil tank 1 directly enters the heat exchanger for preheating, so that the heat released by the cooling of the high-pressure gaseous hydrogen in the booster 3 is recycled. This arrangement uses hydrogen oil as the cold medium of the heat exchanger, which can replace the additional cold medium input in the prior art, greatly reducing the cost. At the same time, the heat released by the cooling of the high-pressure gaseous hydrogen is used for the preheating of the hydrogen oil, and the preheated hydrogen oil can enter the dehydrogenation device 2, which can save the heat used by the original dehydrogenation device 2 for heating the hydrogen oil and save energy.

[0028] Wherein, the heat exchanger is a shell and tube heat exchanger;

[0029] The tube side of the shell and tube heat exchanger is the hydrogen channel, and the shell side of the shell and tube heat exchanger is the hydrogen-oil channel, or the tube side of the shell and tube heat exchanger is the hydrogen-oil channel, and the shell side of the shell and tube heat exchanger is the hydrogen channel.

[0030] The heat exchanger is a shell and tube heat exchanger, which is more commonly used, but of course it is not limited to this. Any equipment that can provide heat exchange between the two can be used.

[0031] Further, if Figure 1As shown, the supercharging device 3 includes a first supercharging part 4 and a second supercharging part 5 located downstream of the first supercharging part 4, the first supercharging part 4 includes a primary pressurizing component 6, a primary heat exchanger 7, a secondary pressurizing component 8 and a secondary heat exchanger 9, the second supercharging part 5 includes a tertiary pressurizing component 10 and a tertiary heat exchanger 11, the primary pressurizing component 6, the primary heat exchanger 7, the secondary pressurizing component 8, the secondary heat exchanger 9, the tertiary pressurizing component 10 and the tertiary heat exchanger 11 are connected in sequence according to the flow direction of the hydrogen, and the primary heat exchanger 7, the secondary heat exchanger 9 and the tertiary heat exchanger 11 constitute the heat exchanger;

[0032] The primary heat exchanger 7 includes a primary hydrogen inlet, a primary hydrogen outlet, a primary hydrogen-oil inlet and a primary hydrogen-oil outlet; the secondary heat exchanger 9 includes a secondary hydrogen inlet, a secondary hydrogen outlet, a secondary hydrogen-oil inlet and a secondary hydrogen-oil outlet; the tertiary heat exchanger 11 includes a tertiary hydrogen inlet, a tertiary hydrogen outlet, a tertiary hydrogen-oil inlet and a tertiary hydrogen-oil outlet; the outlet of the hydrogen-oil tank 1 is connected to the primary hydrogen-oil inlet, the secondary hydrogen-oil inlet and the tertiary hydrogen-oil inlet through three branch pipelines, respectively; the primary hydrogen-oil outlet, the secondary hydrogen-oil outlet and the tertiary hydrogen-oil outlet are connected to the inlet of the dehydrogenation device 2 through three corresponding branch pipelines.

[0033] The heat exchanger after each pressurized component provides heat to the hydrogen oil, fully realizing energy recovery and reuse.

[0034] The integrated organic solute hydrogenation station system also includes a hydrogenator, which is connected to the hydrogen outlet and is used to add hydrogen to hydrogenation vehicles.

[0035] like Figure 1As shown, a separator 12, an adsorber 13 and a buffer tank 14 connected in sequence are further provided between the dehydrogenation device 2 and the booster device 3. The separator 12 includes a separation tank body, a gas discharge hole is provided on the top of the separation tank body, and a liquid discharge hole is provided on the bottom of the separation tank body. The low-pressure gaseous hydrogen mixed with hydrogen oil discharged from the dehydrogenation device 2 enters the separation tank body, and the low-pressure gaseous hydrogen is discharged through the gas discharge hole. The liquid discharge hole of the separation tank body is connected to another hydrogen oil tank 15 through a pipeline, and the hydrogen oil is discharged to the other hydrogen oil tank 15 through the liquid discharge hole. The adsorber 13 includes an adsorption tank body and a liquid discharge hole arranged on the adsorption tank body. The impurity adsorption material inside, the top of the adsorption tank body is provided with a gas inlet, the bottom of the adsorption tank body is provided with a gas outlet and an impurity outlet, the gas discharge hole is connected to the gas inlet through a pipeline, the low-pressure gaseous hydrogen mixed with impurities discharged from the gas discharge hole of the separation tank body enters the adsorption tank body through the gas inlet, the impurity adsorption material adsorbs impurities and discharges them through the impurity outlet, and the low-pressure gaseous hydrogen is discharged through the gas outlet, the buffer tank 14 is provided with a buffer gas inlet and a buffer gas outlet, the bottom of the buffer tank 14 is provided with a buffer discharge outlet, and the gas outlet of the adsorption tank body is connected to the buffer gas inlet through a pipeline.

[0036] The separator 12 can further separate hydrogen oil and hydrogen, and discharge excess impurities such as liquid water through the adsorber 13 to purify the hydrogen. The buffer tank 15 can buffer hydrogen pressure fluctuations to make the system work more smoothly.

[0037] In addition, the liquid discharge hole, the impurity outlet and the buffer discharge outlet are connected to a sewage discharge container 16 through corresponding branch pipes. The hydrogen oil tank 1 is connected to the inlet of the dehydrogenation device 2 through a prepared pipe.

[0038] The provision of the preparation pipeline allows the hydrogen oil to directly enter the dehydrogenation device 2 from the hydrogen oil tank 1 (this operation is provided to cope with the situation where the heat exchanger fails, in which case the hydrogen oil can directly enter the dehydrogenation device 2).

Claims

1. An integrated organic solute hydrogenation station system, characterized in that: The invention comprises a hydrogen oil tank, a dehydrogenation device and a pressurizing device, wherein the hydrogen oil tank is used to store liquid hydrogen, the dehydrogenation device is used to convert liquid hydrogen into low-pressure gaseous hydrogen, the pressurizing device is used to pressurize the low-pressure gaseous hydrogen to high-pressure gaseous hydrogen, the outlet of the dehydrogenation device is connected to the inlet of the pressurizing device to provide the low-pressure gaseous hydrogen to the pressurizing device, the pressurizing device comprises a heat exchanger, the heat exchanger is used to cool the pressurized hydrogen, the heat exchanger comprises a hydrogen inlet end, a hydrogen outlet end, a hydrogen oil inlet end and a hydrogen oil outlet end, the hydrogen oil inlet end is connected to the hydrogen oil outlet end through a pipeline The hydrogen-oil tank is connected, the hydrogen-oil outlet is connected to the inlet of the dehydrogenation device through a pipeline, the pressurized hydrogen is connected to the hydrogen inlet through a pipeline, the hydrogen outlet is used to discharge the hydrogen after cooling, a hydrogen-oil channel is formed between the hydrogen-oil inlet and the hydrogen-oil outlet, a hydrogen channel is formed between the hydrogen inlet and the hydrogen outlet, and the hydrogen-oil in the hydrogen-oil channel and the hydrogen in the hydrogen channel can perform non-contact heat exchange; the boosting device includes a first boosting part and a second boosting part located downstream of the first boosting part, the first boosting part The first pressure boosting part comprises a primary pressure component, a primary heat exchanger, a secondary pressure component and a secondary heat exchanger, the second pressure boosting part comprises a tertiary pressure component and a tertiary heat exchanger, the primary pressure component, the primary heat exchanger, the secondary pressure component, the secondary heat exchanger, the tertiary pressure component and the tertiary heat exchanger are sequentially connected according to the flow direction of the hydrogen, the primary heat exchanger, the secondary heat exchanger and the tertiary heat exchanger constitute the heat exchanger, the primary heat exchanger comprises a primary hydrogen inlet end, a primary hydrogen outlet end, a primary hydrogen oil inlet end and a primary The primary hydrogen oil outlet end, the secondary heat exchanger includes a secondary hydrogen inlet end, a secondary hydrogen outlet end, a secondary hydrogen oil inlet end and a secondary hydrogen oil outlet end, the tertiary heat exchanger includes a tertiary hydrogen inlet end, a tertiary hydrogen outlet end, a tertiary hydrogen oil inlet end and a tertiary hydrogen oil outlet end, the outlet of the hydrogen oil tank is connected to the primary hydrogen oil inlet end, the secondary hydrogen oil inlet end and the tertiary hydrogen oil inlet end respectively through three branch pipelines, and the primary hydrogen oil outlet end, the secondary hydrogen oil outlet end and the tertiary hydrogen oil outlet end are connected to the inlet of the dehydrogenation device through the corresponding three branch pipelines.

2. The integrated organic solute hydrogenation station system according to claim 1, characterized in that: The heat exchanger is a shell and tube heat exchanger; The tube side of the shell and tube heat exchanger is the hydrogen channel, and the shell side of the shell and tube heat exchanger is the hydrogen-oil channel, or the tube side of the shell and tube heat exchanger is the hydrogen-oil channel, and the shell side of the shell and tube heat exchanger is the hydrogen channel.

3. The integrated organic solute hydrogenation station system according to claim 1, characterized in that: The hydrogen filling station system also includes a hydrogen filling machine, which is connected to the third-stage hydrogen outlet end and is used to add hydrogen to the hydrogen filling vehicle.

4. The integrated organic solute hydrogenation station system according to claim 1, characterized in that: A separator, an adsorber and a buffer tank connected in sequence are also provided between the dehydrogenation device and the booster device. The separator includes a separation tank body, a gas discharge hole is provided on the top of the separation tank body, and a liquid discharge hole is provided on the bottom of the separation tank body. The low-pressure gaseous hydrogen mixed with hydrogen oil discharged from the dehydrogenation device enters the separation tank body, and the low-pressure gaseous hydrogen is discharged through the gas discharge hole. The liquid discharge hole of the separation tank body is connected to another hydrogen oil tank through a pipeline, and the hydrogen oil is discharged to the other hydrogen oil tank through the liquid discharge hole. The adsorber includes an adsorption tank body and an impurity adsorption material arranged in the adsorption tank body. The top of the adsorption tank body is provided with a gas inlet, the bottom of the adsorption tank body is provided with a gas outlet and an impurity outlet, the gas discharge hole is connected to the gas inlet through a pipeline, the low-pressure gaseous hydrogen mixed with impurities discharged from the gas discharge hole of the separation tank body enters the adsorption tank body through the gas inlet, the impurity adsorption material adsorbs impurities and discharges them through the impurity outlet, and the low-pressure gaseous hydrogen is discharged through the gas outlet, the buffer tank is provided with a buffer gas inlet and a buffer gas outlet, the bottom of the buffer tank is provided with a buffer discharge outlet, and the gas outlet of the adsorption tank body is connected to the buffer gas inlet through a pipeline.

5. The integrated organic solute hydrogenation station system according to claim 4, characterized in that: The liquid discharge hole, the impurity outlet and the buffer discharge outlet are connected to a sewage discharge container through corresponding branch pipes.

6. The integrated organic solute hydrogenation station system according to claim 1, characterized in that: The hydrogen oil tank is connected to the inlet of the dehydrogenation device through a prepared pipeline.

Images