A system and method for storing and utilizing exhaust water from a hydrogen internal combustion engine RV

Abstract

The present invention discloses a system and method for storing and utilizing the discharged water of a hydrogen internal combustion engine RV, comprising a water storage tank: the water inlet of the water storage tank is respectively connected to a clean water tank and a gray water tank through two groups of water cooling parts, the clean water tank and the gray water tank are connected to a heat sink through a conduit, and the heat sink is connected to the water storage tank through a conduit, and the water inlet of the clean water tank is connected to a three-way pipe. In the present invention, the storage and utilization system can obtain sufficient condensed water by performing multi-stage continuous condensation treatment on the discharged tail gas of the hydrogen internal combustion engine RV, and can efficiently collect, store and utilize the condensed water in a diversified manner, which can not only meet the domestic water and drainage needs in the RV, but also avoid condensation in the RV water tank, greatly improving the operation efficiency of the RV.

Description

Technical Field

[0001] The present invention relates to the technical field of energy conservation and environmental protection, and in particular to a system and method for storing and utilizing exhaust water from a hydrogen internal combustion engine RV. Background Art

[0002] Following the call of the national dual-carbon policy, using hydrogen fuel as a power energy source has become a trend. Hydrogen internal combustion engines and hydrogen fuel cells are the two main directions of the current development of hydrogen fuel. Among them, hydrogen internal combustion engines have the advantages of low cost and a complete upstream and downstream industrial chain. Some models of gasoline and diesel engines can be converted into hydrogen internal combustion engines, which have the potential for large-scale application. Hydrogen internal combustion engines use hydrogen as fuel, and the main emissions are air, water and nitrogen oxides. Among them, nitrogen oxides react in the SCR device and are finally discharged in the form of N2, and water vapor and air are discharged together. Since the SCR catalyst requires a higher reaction temperature, the exhaust gas temperature available for discharge after the SCR device is relatively high. To obtain condensed water, a cooling device is required, and an application end is found for the condensed water. RVs are road vehicles that have a certain demand for water storage. They are equipped with clean water tanks, gray water tanks and black water tanks to meet the domestic water and drainage needs in the car. The clean water tank stores clean water for domestic use, and the gray water tank stores sewage to achieve efficient utilization of water resources.

[0003] Chinese Patent Publication No.: CN108298685A discloses "RV Wastewater Treatment and Energy Utilization System", which includes an engine, a radiator, a domestic water area of ​​the RV, a clean water bucket for storing clean water, a domestic water bucket for storing domestic water, an anaerobic fermentation bucket for collecting wastewater and waste in the domestic water area, a sewage bucket, and a gas storage container for collecting the gas generated by the anaerobic fermentation bucket. The water outlets of the clean water bucket and the domestic water bucket are respectively connected to the domestic water area through pipelines. The anaerobic fermentation barrel is provided with a first feed inlet, an exhaust outlet, and a sewage outlet. The first feed inlet is connected to the sewage outlet of the domestic water area through a pipeline. The sewage outlet of the anaerobic fermentation barrel is connected to the water inlet of the sewage bucket through a pipeline. The exhaust outlet of the anaerobic fermentation barrel is connected to the air inlet of the gas storage container through a pipeline. The air outlet of the gas storage container is connected to the domestic water area through a pipeline.

[0004] Existing RV exhaust water cannot achieve efficient and comprehensive recycling and storage effects, resulting in the loss of some water resources and waste, and cannot achieve efficient utilization of water resources, reducing the actual utilization efficiency of water resources in RVs. At the same time, the exhaust water of hydrogen internal combustion engines also has a low utilization efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrogen internal combustion engine RV exhaust water storage and utilization system and method that can not only meet the domestic water and drainage needs in the RV, but also avoid condensation in the RV water tank.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a hydrogen internal combustion engine RV exhaust water storage and utilization system, comprising a water storage tank:

[0007] The water inlet of the water storage tank is connected to the clean water tank and the gray water tank respectively through two sets of water cooling parts;

[0008] The clean water tank and the grey water tank are connected to the heat sink through a conduit, and the heat sink is connected to the water storage tank through a conduit;

[0009] The water inlet of the clean water tank is connected with a three-way pipe.

[0010] As a further description of the above technical solution:

[0011] The two pipelines of the three-way pipe are respectively provided with a first valve and a second valve.

[0012] As a further description of the above technical solution:

[0013] The water cooling element is composed of four water cooling pipes distributed in parallel.

[0014] As a further description of the above technical solution:

[0015] The clean water tank is respectively provided with a first clean water inlet, a second clean water inlet, a third clean water inlet, a fourth clean water inlet, a fifth clean water inlet and a sixth clean water inlet, and the second clean water inlet, the third clean water inlet, the fourth clean water inlet and the fifth clean water inlet are respectively connected to one group of four water-cooling pipes, and the first clean water inlet and the sixth clean water inlet are respectively connected to the three-way pipe and the conduit.

[0016] As a further description of the above technical solution:

[0017] The gray water tank is respectively provided with a first gray water inlet, a second gray water inlet, a third gray water inlet, a fourth gray water inlet, a fifth gray water inlet and a sixth gray water inlet, and the second gray water inlet, the third gray water inlet, the fourth gray water inlet and the fifth gray water inlet are respectively connected to another group of four water cooling pipes, and the first gray water inlet and the sixth gray water inlet are respectively connected to the conduit and the atmosphere.

[0018] As a further description of the above technical solution:

[0019] The heat sink is composed of four heat sinks and an exhaust manifold. The heat sink is provided with cooling air holes. The air inlet of the heat sink is connected to an air intake pipe, and a third valve is provided on the air intake pipe.

[0020] As a further description of the above technical solution:

[0021] The water storage tank is provided with a straight pipe, and the straight pipe is provided with a fifth valve.

[0022] As a further description of the above technical solution:

[0023] The water storage tank is provided with an air pressure pipe, and the air pressure pipe is provided with a fourth valve.

[0024] As a further description of the above technical solution:

[0025] The water storage tank is provided with a first utilization pipe and a second utilization pipe respectively, and the first utilization pipe and the second utilization pipe are provided with a sixth valve and a seventh valve respectively.

[0026] A method for storing and utilizing exhaust water from a hydrogen internal combustion engine RV comprises the following steps:

[0027] S01: The exhaust gas of the hydrogen internal combustion engine flows into the three-way pipe after being processed by the SCR device, and is connected to the conduit so that the exhaust gas of the hydrogen internal combustion engine enters the clean water tank for the first exhaust condensation, and the generated condensed water enters the water storage tank;

[0028] S02: The exhaust gas after the first condensation enters the heat sink for the second exhaust condensation, and the generated condensed water enters the water storage tank;

[0029] S03; the tail gas after the second condensation enters the gray water tank, and the third tail gas condensation is performed, and the generated condensed water enters the water storage tank;

[0030] S04: The condensed water in the water tank is discharged to the outside through different pipelines for utilization.

[0031] In the above technical solution, the present invention provides a hydrogen internal combustion engine RV exhaust water storage and utilization system and method, which has the following beneficial effects:

[0032] The storage and utilization system can obtain sufficient condensed water by performing multi-stage continuous condensation treatment on the exhaust gas of the hydrogen internal combustion engine RV, and can efficiently collect, store and utilize the condensed water in a diversified manner. It can not only meet the domestic water and drainage needs in the RV, but also avoid condensation in the RV water tank, greatly improving the operating efficiency of the RV. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 A schematic diagram of the structure of a hydrogen internal combustion engine RV exhaust water storage and utilization system provided by an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the structure of a water purification tank provided by an embodiment of the present invention;

[0036] Figure 3 A schematic structural diagram of a gray water tank provided in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 1. Three-way pipe; 2. First valve; 3. Second valve; 4. Clean water tank; 41. First clean water outlet; 42. Second clean water outlet; 43. Third clean water outlet; 44. Fourth clean water outlet; 45. Fifth clean water outlet; 46. Sixth clean water outlet; 5. Conduit; 6. Air intake pipe; 7. Third valve; 8. Heat sink; 9. Gray water tank; 91. First gray water outlet; 92. Second gray water outlet; 93. Third gray water outlet; 94. Fourth gray water outlet; 95. Fifth gray water outlet; 96. Sixth gray water outlet; 10. Water storage tank; 11. Water cooling pipe; 12. Air pressure pipe; 13. Fourth valve; 14. Straight discharge pipe; 15. Fifth valve; 16. First utilization pipe; 17. Sixth valve; 18. Second utilization pipe; 19. Seventh valve. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1-Figure 3 As shown, a hydrogen internal combustion engine RV exhaust water storage and utilization system includes a water storage tank 10:

[0041] The water inlet of the water storage tank 10 is connected to the clean water tank 4 and the gray water tank 9 respectively through two sets of water cooling components;

[0042] The clean water tank 4 and the grey water tank 9 are connected to the heat sink through the conduit 5, and the heat sink is connected to the water storage tank 10 through the conduit 5;

[0043] The water inlet of the clean water tank 4 is connected with a three-way pipe 1.

[0044] The storage and utilization system can obtain sufficient condensed water by performing multi-stage continuous condensation treatment on the exhaust gas of the hydrogen internal combustion engine RV, and can efficiently collect, store and utilize the condensed water in a diversified way. It can not only meet the domestic water and drainage needs in the RV, but also avoid condensation in the RV water tank, greatly improving the operating efficiency of the RV.

[0045] The two pipelines of the three-way pipe 1 are respectively provided with a first valve 2 and a second valve 3 .

[0046] The water cooling element is composed of four water cooling pipes 11 arranged in parallel.

[0047] The clean water tank 4 is respectively provided with a first clean water inlet 41, a second clean water inlet 42, a third clean water inlet 43, a fourth clean water inlet 44, a fifth clean water inlet 45 and a sixth clean water inlet 46, and the second clean water inlet 42, the third clean water inlet 43, the fourth clean water inlet 44 and the fifth clean water inlet 45 are respectively connected to one group of four water cooling pipes 11, the first clean water inlet 41 and the sixth clean water inlet 46 are respectively connected to the three-way pipe 1 and the conduit 5, the first clean water inlet 41 of the clean water tank 4 is connected to the exhaust valve pipeline, the exhaust gas enters through the first clean water inlet 41 and then enters the water storage tank 10 through the second clean water inlet 42, the third clean water inlet 43 and the fourth clean water inlet 44 increase the heat exchange area between the gas in the water storage tank 10 and the liquid in the clean water tank 4, the uncondensed gas will enter the fifth clean water inlet 45 and flow into the air cooling device through the sixth clean water inlet 46 to complete the first exhaust gas condensation.

[0048] The gray water tank 9 is respectively provided with a first gray water inlet 91, a second gray water inlet 92, a third gray water inlet 93, a fourth gray water inlet 94, a fifth gray water inlet 95 and a sixth gray water inlet 96, and the second gray water inlet 92, the third gray water inlet 93, the fourth gray water inlet 94 and the fifth gray water inlet 95 are respectively connected to another group of four water cooling pipes 11, the first gray water inlet 91 and the sixth gray water inlet 96 are respectively connected to the conduit 5 and the atmosphere, the exhaust gas enters the gray water tank 9 through the first gray water inlet 91 and enters the water storage tank 10 through the second gray water inlet 92, the third gray water inlet 93 and the fourth gray water inlet 94 increase the heat exchange area between the gas in the water storage tank 10 and the liquid in the gray water tank 9, the uncondensed gas will enter the fifth gray water inlet 95 and flow into the atmosphere through the sixth gray water inlet 96, completing the third exhaust gas cooling.

[0049] The heat sink consists of four heat sinks 8 and an exhaust manifold. The heat sink 8 is provided with cooling air holes. The air inlet of the heat sink 8 is connected to the air intake pipe 6, and the air intake pipe 6 is provided with a third valve 7. The cooling air is introduced through the air intake pipe 6 and introduced into the heat sink 8 through the air intake manifold. After air cooling, the exhaust gas enters the first gray water inlet 91 of the gray water tank 9 to complete the second exhaust gas cooling.

[0050] A straight pipe 14 is disposed on the water storage tank 10 , and a fifth valve 15 is disposed on the straight pipe 14 .

[0051] An air pressure pipe 12 is disposed on the water storage tank 10 , and a fourth valve 13 is disposed on the air pressure pipe 12 .

[0052] The water storage tank 10 is provided with a first utilization pipe 16 and a second utilization pipe 18 , respectively. The first utilization pipe 16 and the second utilization pipe 18 are provided with a sixth valve 17 and a seventh valve 19 , respectively.

[0053] After being processed by the SCR device, the exhaust gas of the hydrogen internal combustion engine flows into the three-way pipe 1 nickel where the first valve 2 and the second valve 3 are located. The first valve 2 and the second valve 3 determine whether the exhaust gas flows directly into the atmosphere or into the hydrogen internal combustion engine exhaust gas water storage device. When the second valve 3 is opened, the exhaust gas passes through the conduit 5 and first enters the clean water tank 4 of the RV. Heat exchange is performed through four interconnected water cooling pipes 11 to complete the first exhaust gas condensation. The generated condensed water is directly stored in the water storage tank 10. The remaining exhaust gas passes through the pipeline of the heat sink 8 for the second exhaust gas condensation. The heat sink 8 has cooling air holes inside. The third valve 7 is responsible for controlling the cooling air in the intake pipe 6 to flow into the air holes of the heat sink 8, and the generated condensed water flows into the water storage The exhaust gas flows into the gray water tank 9 of the RV and is heat exchanged through four connected water-cooling pipes 11 to complete the third exhaust gas condensation. The generated condensed water is directly stored in the water tank 10, and the remaining exhaust gas flows into the atmosphere. The sixth valve 17 controls the condensed water in the water tank 10 to flow into the RV domestic water tank (such as a toilet tank, etc.) through the first utilization pipe 16. The seventh valve 19 controls the condensed water to flow into the wiper water tank through the second utilization pipe 18. The fifth valve 15 controls the condensed water to be discharged to the outside through the straight discharge pipe 14. The fourth valve 13 is used to control the air pressure in the water tank 10 during the direct discharge of condensed water in a fault state, and is connected to the atmosphere through the air pressure pipe 12 to achieve dynamic balance of air pressure.

[0054] A method for storing and utilizing exhaust water from a hydrogen internal combustion engine RV comprises the following steps:

[0055] S01: The exhaust gas of the hydrogen internal combustion engine flows into the three-way pipe 1 after being processed by the SCR device, and is connected to the conduit 5 so that the exhaust gas of the hydrogen internal combustion engine enters the clean water tank 4, and the first exhaust gas condensation is performed, and the generated condensed water enters the water storage tank 10;

[0056] S02: the exhaust gas after the first condensation enters the heat sink 8, and the second exhaust gas condensation is performed, and the generated condensed water enters the water storage tank 10;

[0057] S03; the exhaust gas after the second condensation enters the gray water tank 9, and the third exhaust gas condensation is performed, and the generated condensed water enters the water storage tank 10;

[0058] S04: The condensed water in the water storage tank 10 is discharged to the outside through different pipelines for utilization.

[0059] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydrogen internal combustion engine RV exhaust water storage and utilization system, including a water storage tank, characterized in that: The water inlet of the water storage tank is connected to the clean water tank and the gray water tank respectively through two sets of water cooling parts; The clean water tank and the grey water tank are connected to the heat sink through a conduit, and the heat sink is connected to the water storage tank through a conduit; The water inlet of the clean water tank is connected with a three-way pipe; The clean water tank is provided with a first clean water inlet, a second clean water inlet, a third clean water inlet, a fourth clean water inlet, a fifth clean water inlet and a sixth clean water inlet, respectively, and the second clean water inlet, the third clean water inlet, the fourth clean water inlet and the fifth clean water inlet are respectively connected to one group of four water cooling pipes, the first clean water inlet and the sixth clean water inlet are respectively connected to the three-way pipe and the conduit, the first clean water inlet of the clean water tank is connected to the tail gas valve pipeline, the tail gas enters through the first clean water inlet and then enters the water storage tank through the second clean water inlet, the third clean water inlet and the fourth clean water inlet increase the heat exchange area between the gas in the water storage tank and the liquid in the clean water tank, the uncondensed gas will enter the fifth clean water inlet, and flow into the air cooling device through the sixth clean water inlet, completing the first tail gas condensation; The gray water tank is respectively provided with a first gray water inlet, a second gray water inlet, a third gray water inlet, a fourth gray water inlet, a fifth gray water inlet and a sixth gray water inlet, and the second gray water inlet, the third gray water inlet, the fourth gray water inlet and the fifth gray water inlet are respectively connected to the four water cooling pipes of another group, the first gray water inlet and the sixth gray water inlet are respectively connected to the conduit and the atmosphere, the tail gas enters from the first gray water inlet of the gray water tank, and enters the water storage tank from the second gray water inlet, the third gray water inlet and the fourth gray water inlet increase the heat exchange area between the gas in the water storage tank and the liquid in the gray water tank, the uncondensed gas will enter the fifth gray water inlet, and flow into the atmosphere through the sixth gray water inlet, completing the third tail gas cooling; The two pipelines of the three-way pipe are respectively provided with a first valve and a second valve; The water cooling element is composed of four water cooling pipes distributed in parallel; The heat sink is composed of four heat sinks and an exhaust manifold. The heat sink is provided with cooling holes. The air inlet of the heat sink is connected to an air intake pipe, and a third valve is provided on the air intake pipe. The water storage tank is provided with a straight pipe, and the straight pipe is provided with a fifth valve; The water storage tank is provided with an air pressure pipe, and the air pressure pipe is provided with a fourth valve; The water storage tank is provided with a first utilization pipe and a second utilization pipe respectively, and the first utilization pipe and the second utilization pipe are provided with a sixth valve and a seventh valve respectively.

2. A method for storing and utilizing the exhaust water of a hydrogen internal combustion engine RV, characterized in that: The following steps are involved: S01: The exhaust gas of the hydrogen internal combustion engine flows into the three-way pipe after being processed by the SCR device, and is connected to the conduit so that the exhaust gas of the hydrogen internal combustion engine enters the clean water tank for the first exhaust condensation, and the generated condensed water enters the water storage tank; S02: The exhaust gas after the first condensation enters the heat sink for the second exhaust condensation, and the generated condensed water enters the water storage tank; S03; the tail gas after the second condensation enters the gray water tank, and the third tail gas condensation is performed, and the generated condensed water enters the water storage tank; S04: The condensed water in the water tank is discharged to the outside through different pipelines for utilization.

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