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CN-121439851-B - Carbon dioxide circulating type water hydrogen power generation device

CN121439851BCN 121439851 BCN121439851 BCN 121439851BCN-121439851-B

Abstract

The invention relates to the technical field of water hydrogen power generation, in particular to a carbon dioxide circulating water hydrogen power generation device which comprises a raw material conveying module, a hydrogen preparation module, a separation module, a hydrogen power generation module, a methanol preparation module, a detection module, an analysis module and an alarm module, wherein the raw material conveying module conveys hydrogen production raw materials stored in a storage container, the hydrogen preparation module processes the received raw materials to generate gas products, the separation module separates the gas products into carbon dioxide and hydrogen, the hydrogen power generation module converts the hydrogen into electric energy, the methanol preparation module adds the carbon dioxide separated by the separation module into other energy sources to complete the preparation of methanol, the detection module monitors the whole process of hydrogen production, the analysis module judges the operation condition of a preparation flow according to detection parameters of each module, and the preparation parameters are regulated according to judgment results, so that the stability of hydrogen preparation is improved, and the production efficiency of the hydrogen is further improved.

Inventors

  • Wei Xiaoze
  • GAO YANG

Assignees

  • 京工智能(北京)科技有限责任公司

Dates

Publication Date
20260512
Application Date
20250905

Claims (9)

  1. 1. A carbon dioxide circulating type water hydrogen power generation device, characterized by comprising: a feedstock delivery module comprising a storage vessel for storing a liquid feedstock and carbon dioxide; the hydrogen preparation module is connected with the raw material conveying module and is used for heating gasified water and methanol under the action of a catalyst and outputting gas; the separation module is arranged at the output end of the hydrogen preparation module and used for separating the gas output by the hydrogen preparation module into hydrogen and carbon dioxide; the hydrogen power generation module is arranged at the output end of the separation module and is used for generating power by utilizing hydrogen and comprises an output flow pump which is arranged at the input end and is used for controlling the flow rate of the hydrogen; The methanol preparation module is connected with the separation module and the raw material conveying module and is used for preparing methanol; The detection module is respectively connected with the hydrogen power generation module, the separation module, the methanol preparation module, the hydrogen preparation module and the raw material conveying module and used for acquiring the operation parameters of each module; The analysis module is respectively connected with the raw material conveying module, the hydrogen preparation module, the hydrogen power generation module and the detection module, and is used for determining whether the operation condition of the methanol preparation module accords with a preset standard or not based on the electric energy output by the hydrogen power generation module in a single detection period, and determining the treatment mode for the hydrogen preparation module based on the acquired hydrogen flow rate, wherein the analysis module comprises the steps of adjusting the adding amount of the catalyst to a corresponding value or adjusting the opening ratio of the output flow pump and the input flow pump to a corresponding value; The alarm module is connected with the analysis module and used for sending out corresponding alarm information based on the judgment result of the analysis module; a partition board is arranged in the storage container, and a raw material pump for conveying raw materials is arranged at the output end of the storage container; The detection module comprises an electric energy monitor, a flow detector, an input flow pump, a temperature monitor, a first pressure sensor and a second pressure sensor, wherein the electric energy monitor is arranged at the output end of the hydrogen power generation module and used for acquiring output electric energy, the flow detector is arranged at the input end of the separation module and used for acquiring the flow rate of output gas, the input flow pump is arranged at the input end of the methanol preparation module and used for acquiring the input flow rate of hydrogen, the temperature monitor is arranged in the hydrogen preparation module and used for acquiring the hydrogen production temperature, and the first pressure sensor and the second pressure sensor are respectively arranged at two sides of the separation plate and used for acquiring the pressure intensity at two sides of the separation plate; The analysis module is used for determining whether the operation condition of the methanol preparation module accords with a preset standard based on the electric energy output by the hydrogen power generation module in a single detection period, and comprises the following steps: If the electric energy is smaller than or equal to the first preset electric energy, judging that the running condition of the methanol preparation module does not meet the preset standard, and determining a treatment mode for the hydrogen preparation module based on the acquired hydrogen flow rate; If the electric energy is smaller than or equal to the second preset electric energy and larger than the first preset electric energy, drawing an electric energy time domain curve based on the electric energy obtained in each detection period, and determining whether the operation condition of the methanol preparation module meets a preset standard or not based on the slope of the electric energy time domain curve at the current time node; If the electric energy is larger than the second preset electric energy, the operation condition of the methanol preparation module is judged to be in accordance with the preset standard, and the methanol preparation module is controlled to continuously operate by using the current operation parameters.
  2. 2. The carbon dioxide-circulating water-hydrogen power generation apparatus of claim 1, wherein the analysis module to determine whether the operating condition of the methanol production module meets the preset criteria based on the slope of the electrical energy time domain curve at the current time node comprises: if the slope is smaller than or equal to a preset slope, judging that the running condition of the methanol preparation module does not meet the preset standard, and determining a processing mode aiming at the raw material conveying module based on the difference value between the preset slope and the slope; If the slope is larger than the preset slope, the operation condition of the methanol preparation module is judged to accord with the preset standard, and the methanol preparation module is controlled to continuously operate by using the current operation parameters.
  3. 3. The carbon dioxide circulating water hydrogen power generation apparatus of claim 2, wherein the analysis module to determine a treatment regime for the feedstock delivery module based on a preset slope and a difference in slope comprises: recording the difference between the preset slope and the slope as a slope difference; if the slope difference value is smaller than or equal to the preset slope difference value, the raw material conveying rate is adjusted to a corresponding value based on the difference value between the second preset electric energy and the electric energy; And if the slope difference value is larger than the preset slope difference value, adjusting the hydrogen production temperature of the hydrogen preparation module to a corresponding value based on the slope difference value.
  4. 4. The carbon dioxide circulating water hydrogen power generation apparatus of claim 3, wherein the analysis module is configured to adjust a feedstock delivery rate to a corresponding value based on a difference between a second preset electrical energy and the electrical energy, wherein: Recording the difference value between the second preset electric energy and the electric energy as an electric energy difference value; The magnitude of the increase in the feed rate determined based on the electrical energy difference is proportional to the electrical energy difference.
  5. 5. The carbon dioxide-circulating water-hydrogen power generation apparatus of claim 4, wherein the analysis module is configured to adjust a hydrogen production temperature of the hydrogen production module to a corresponding value based on a slope difference, wherein: The increase amplitude of the hydrogen production temperature of the hydrogen production module determined based on the slope difference value is positively correlated with the slope difference value.
  6. 6. The carbon dioxide circulating water hydrogen power generation apparatus of claim 5, wherein the analysis module to determine a treatment regime for the hydrogen production module based on the obtained output gas flow rate comprises: if the flow rate of the output gas is smaller than or equal to the first preset flow rate, the adding amount of the catalyst is adjusted to a corresponding value based on the obtained hydrogen production temperature; If the flow rate of the output gas is smaller than or equal to the second preset flow rate and larger than the first preset flow rate, determining a treatment mode for the hydrogen preparation module based on the pressure difference of two sides of the partition plate; and if the output gas flow rate is greater than the second preset flow rate, the opening ratio of the output flow pump and the input flow pump is adjusted to be higher than a corresponding value based on the output gas flow rate.
  7. 7. The carbon dioxide-circulating water-hydrogen power generation apparatus of claim 6, wherein the analysis module is to adjust a dosing amount of the catalyst to a corresponding value based on the obtained hydrogen production temperature, wherein: the increase amplitude of the catalyst addition amount determined based on the obtained hydrogen production temperature is inversely related to the hydrogen production temperature.
  8. 8. The carbon dioxide circulating water hydrogen power generation apparatus of claim 7, wherein the analysis module to determine a treatment regime for the hydrogen production module based on a pressure difference across the separator comprises: if the pressure difference is smaller than or equal to the preset pressure difference, the adding amount of the catalyst is adjusted to a corresponding value based on the obtained hydrogen production temperature; if the pressure difference is larger than the preset pressure difference, the alarm information aiming at the abnormality of the partition board is judged to be sent out.
  9. 9. The carbon dioxide circulating water hydrogen power generation apparatus of claim 8, wherein the analysis module is configured to adjust the opening ratio of the output flow pump and the input flow pump to a corresponding value based on the output gas flow rate, wherein: The magnitude of increase in the opening ratio of the output flow pump and the input flow pump, which is determined based on the output gas flow rate, is positively correlated with the output gas flow rate.

Description

Carbon dioxide circulating type water hydrogen power generation device Technical Field The invention relates to the technical field of water hydrogen power generation, in particular to a carbon dioxide circulating water hydrogen power generation device. Background Among the many new energy sources, hydrogen energy will become the most ideal energy source in the 21 st century. This is because, in the case of burning the same weight of coal, gasoline and hydrogen, the energy generated by hydrogen is the most, and the combustion product is water, no ash and exhaust gas, and no environmental pollution, while the combustion of coal and oil generates carbon dioxide and sulfur dioxide, which can generate greenhouse effect and acid rain, respectively. The reserves of coal and oil are limited, while hydrogen is mainly in water, the only product after combustion is water. Hydrogen is a colorless gas. The combustion of one gram of hydrogen energy releases 142 kilojoules of heat which is 3 times of the heating value of gasoline. The hydrogen has light weight, and is lighter than gasoline, natural gas and kerosene, so that the hydrogen is convenient to carry and transport and is the most suitable fuel for high-speed flight vehicles such as aerospace and aviation. Hydrogen is capable of burning in oxygen and the temperature of the hydrogen flame can be as high as 2500 ℃, so hydrogen is commonly used for cutting or welding iron and steel materials. The hydrogen fuel cell can directly convert hydrogen energy into electric energy, so that the utilization of the hydrogen energy is more convenient. Such fuel cells are currently in use on spacecraft and submarines. The energy consumption and cost in chemical production can be reduced by reforming methanol and water, the mixed gas rich in CO2 and pure hydrogen can be prepared by using advanced methanol steam reforming-pressure swing adsorption technology, and the hydrogen and carbon dioxide gas can be obtained simultaneously after further post-treatment. Methanol and steam pass through a catalyst under certain temperature and pressure conditions, and under the action of the catalyst, methanol cracking reaction and carbon monoxide conversion reaction are carried out to generate hydrogen and carbon dioxide, thus the catalyst is a multi-component and multi-reaction gas-solid catalytic reaction system. The reaction equation is as follows: CH3OH→CO+2H2 (1) H2O+CO→CO2+H2 (2) CH3OH+H2O→CO2+3H2 (3) h2 and CO2 generated by the reforming reaction are separated by palladium membrane separation, and high-purity hydrogen is obtained. The Chinese patent application publication No. CN105071742A discloses a water-hydrogen energy self-power supply system and a method, which comprise a natural energy power generation unit, a methanol power generation unit, a rechargeable battery, a charging unit, a methanol storage unit, a methane alcohol production unit, a hydrogen alcohol production unit, an electric hydrogen production unit and a main control unit, wherein the main control unit is also used for acquiring the starting state of electric equipment so as to acquire real-time power consumption demand data, meanwhile, the main control unit acquires the real-time power generation data of the natural energy power generation unit and the methanol power generation unit, when the power generation data is larger than the power consumption demand data, the charging unit is controlled to charge the rechargeable battery with redundant electric energy, and when the power generation data is smaller than the power consumption demand data, the rechargeable battery is started to supply power to the electric equipment, so that the technical scheme has the problems that monitoring for the hydrogen production process is not considered, the operation condition of the preparation process is judged according to the monitoring parameters of each module, the preparation parameter is not considered to be regulated according to the judging result, the stability of the hydrogen preparation is influenced, and the production efficiency of the hydrogen is further influenced. Disclosure of Invention Therefore, the invention provides a carbon dioxide circulating type water-hydrogen power generation device, which is used for solving the problems that in the prior art, monitoring is not considered in the hydrogen production process, the operation condition of the preparation flow is judged according to the monitoring parameters of each module, the preparation parameters are not considered to be regulated according to the judgment result, the stability of hydrogen preparation is influenced, and the production efficiency of hydrogen is further influenced. In order to achieve the above object, the present invention provides a carbon dioxide circulating type water hydrogen power generation device comprising: The raw material conveying module comprises a storage container for storing raw materials, wherein a partition plate is arrange