Coal underground gasification and new energy combined chemical product production device

Abstract

This utility model relates to the field of underground coal gasification utilization technology, and discloses a chemical product production device combining underground coal gasification with new energy sources. The device includes a renewable energy storage device, a water electrolysis hydrogen and oxygen production device, and an underground coal gasification device. The renewable energy storage device includes solar photovoltaic panels. Solar energy is collected by the photovoltaic panels, processed by a solar controller, and stored in a battery. This battery then powers the electrolysis cell to produce hydrogen and oxygen, achieving efficient collection, storage, and conversion of renewable energy. The electrolysis cell is rationally partitioned to stabilize the electrolysis process and improve conversion efficiency, providing a stable gas source for coal gasification. Oxygen is sent to a second control box via an exhaust pipe, compressed, and stored in an oxygen storage tank. It is then precisely supplied to the coal gasification gasification pipe. The controllers in the first and second control boxes precisely control the device's operation. The gas supply pipe and valves allow for flexible addition of substances, ensuring a stable and controllable gasification reaction, which is beneficial for producing high-quality chemical products.

Description

Technical Field

[0001] This utility model relates to the field of underground coal gasification utilization technology, specifically a chemical product production device that combines underground coal gasification with new energy. Background Technology

[0002] Underground coal gasification is a process that directly converts coal into product gas through controlled combustion and gasification reactions in underground coal seams in the presence of an oxidant. This product gas, often called crude coal gas or crude syngas, can then be used as feedstock for various applications, including fuel production, chemical production, and power generation. This underground coal gasification technology is applicable to most coal deposits.

[0003] Underground coal gasification is a controlled combustion process of underground coal to produce crude coal gas (crude syngas) through thermal and chemical reactions. It is a coal development technology that integrates well construction, mining, and conversion processes, and is particularly suitable for coal seams that are unminable or uneconomical to mine using conventional methods. However, the oxidant required for underground coal gasification is oxygen, which is usually obtained by using an air separation unit to separate oxygen through deep cooling and liquefaction. However, the electrical energy or steam energy consumed by this method accounts for more than 80% of the total energy consumption of underground coal gasification, making it relatively energy-intensive. To address this issue, we propose a chemical product production device that combines underground coal gasification with new energy sources. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a chemical product production device that combines underground coal gasification with new energy sources, thereby solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a chemical product production device combining underground coal gasification and new energy, comprising a renewable energy storage device, a water electrolysis hydrogen and oxygen production device, and an underground coal gasification device. The renewable energy storage device includes a solar photovoltaic panel, a solar controller is installed at the bottom of the solar photovoltaic panel, and the solar photovoltaic panel is connected to the solar controller via a conductive wire. The solar photovoltaic panel is also connected to a battery via the solar controller and a conductive wire. The water electrolysis hydrogen and oxygen production device includes an electrolytic cell, a partition is fixedly installed inside the electrolytic cell, and negative electrode conductive rods and positive electrode conductive rods are respectively installed on both sides of the top of the electrolytic cell and on both sides of the partition. A hydrogen exhaust pipe is installed next to the negative electrode conductive rod installed on the top of the electrolytic cell, and an oxygen exhaust pipe is installed next to the positive electrode conductive rod installed on the top of the electrolytic cell. The underground coal gasification device includes a coal gasification gas pipe, and a gas filling pipe is installed at the top of the coal gasification gas pipe.

[0006] As a preferred embodiment of this utility model, the solar photovoltaic panel is installed on a photovoltaic mounting frame, and the solar photovoltaic panel is connected to a controller in the first control box via a battery connected to a solar controller, and the battery is connected to a positive electrode wire and a negative electrode wire.

[0007] In a preferred embodiment of this invention, the other end of the positive electrode wire is connected to the connection end of the positive electrode conductive rod, and the other end of the negative electrode wire is connected to the connection end of the negative electrode conductive rod.

[0008] As a preferred embodiment of this utility model, the lower interior of the electrolytic cell is interconnected, an inlet pipe is installed on the upper part of one side wall of the electrolytic cell, and a drain pipe is installed on the lower part of the other side wall of the electrolytic cell. Valves are installed on both the inlet pipe and the drain pipe.

[0009] As a preferred embodiment of this utility model, one end of the oxygen exhaust pipe is connected to a second control box, which contains a controller and an oxygen compressor. One end of the oxygen exhaust pipe is connected to the input end of the oxygen compressor in the second control box, and the other end of the oxygen exhaust pipe is connected to an oxygen storage tank via the oxygen compressor.

[0010] As a preferred embodiment of this utility model, the exhaust port of the oxygen storage tank is equipped with a gas supply pipe, the other end of which is connected to one side of the upper part of the coal gasification gas pipe. A gas filling pipe is installed at the top of the coal gasification gas pipe, extending through and into the interior of the coal gasification gas pipe, and a valve is installed on the gas filling pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This chemical product production device, which combines underground coal gasification with new energy, collects solar energy through solar photovoltaic panels, processes the electrical energy through a solar controller, stores it in a battery, and then uses the battery to power an electrolytic cell for water electrolysis to produce hydrogen and oxygen. This achieves efficient utilization of renewable energy from collection, storage to conversion. The electrolytic cell is equipped with baffles to reasonably separate the electrolysis areas, ensuring a stable and orderly water electrolysis process, effectively improving energy conversion efficiency, and providing a stable source of hydrogen and oxygen for subsequent underground coal gasification.

[0012] 2. This chemical product production device, which combines underground coal gasification with new energy, delivers oxygen generated by electrolysis to the second control box through an oxygen exhaust pipe. After being compressed by an oxygen compressor, the oxygen is stored in an oxygen storage tank and then precisely delivered to the coal gasification gas pipe through an outlet pipe. It works closely in synergy with the underground coal gasification process. At the same time, the controllers in the first and second control boxes can precisely control the operation of the entire device. The gas filling pipe and its valves can flexibly add substances according to actual needs, ensuring the stability and controllability of the underground coal gasification reaction, which is conducive to the production of high-quality chemical products. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional view of the electrolytic cell of this utility model; Figure 3 This is a cross-sectional view of the coal gasification ventilation pipe of this utility model.

[0014] In the diagram: 1. Solar photovoltaic panel; 101. Photovoltaic mounting frame; 102. Conductive wire; 103. First control box; 2. Electrolytic cell; 201. Positive electrode wire; 202. Negative electrode wire; 203. Negative electrode conductive rod; 204. Hydrogen exhaust pipe; 205. Oxygen exhaust pipe; 206. Positive electrode conductive rod; 207. Water inlet pipe; 208. Drainage pipe; 209. Partition; 3. Second control box; 301. Gas transmission pipe; 4. Coal gasification gas pipe; 401. Gas filling pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3A chemical product production device combining underground coal gasification and new energy sources includes a renewable energy storage device, a water electrolysis hydrogen and oxygen production device, and an underground coal gasification device. In the renewable energy storage device, a solar photovoltaic panel 1 is installed on a photovoltaic mounting frame 101 to allow it to receive sufficient sunlight. A solar controller is installed at the bottom of the solar photovoltaic panel 1 and connected to the solar controller via a conductive wire 102. The solar controller and the conductive wire 102 are then connected to a storage battery. The storage battery is connected to a controller inside a first control box 103, and a positive electrode wire 201 and a negative electrode wire 202 are led out from the storage battery.

[0017] In the water electrolysis hydrogen and oxygen production device, a partition 209 is fixedly installed inside the electrolytic cell 2, dividing the electrolytic cell 2 into two areas. A negative electrode conductive rod 203 and a positive electrode conductive rod 206 are respectively installed on the top two sides of the electrolytic cell 2 and on both sides of the partition 209. A hydrogen exhaust pipe 204 is installed next to the negative electrode conductive rod 203, and an oxygen exhaust pipe 205 is installed next to the positive electrode conductive rod 206. The lower part of the electrolytic cell 2 is connected. A water inlet pipe 207 is installed on the upper part of one side wall of the electrolytic cell 2, and a drain pipe 208 is installed on the lower part of the other side wall. Valves are installed on the water inlet pipe 207 and the drain pipe 208. The other end of the positive electrode wire 201 is connected to the connection end of the positive electrode conductive rod 206, and the other end of the negative electrode wire 202 is connected to the connection end of the negative electrode conductive rod 203.

[0018] In the underground coal gasification unit, a coal gasification ventilation pipe 4 is installed, with a gas filling pipe 401 installed at its top. A valve is installed on the gas filling pipe 401. One end of an oxygen exhaust pipe 205 is connected to a second control box 3. A controller and an oxygen compressor are installed inside the second control box 3. One end of the oxygen exhaust pipe 205 is connected to the input end of the oxygen compressor inside the second control box 3, and then connected to an oxygen storage tank through the oxygen compressor. An outlet gas pipe 301 is installed at the exhaust port of the oxygen storage tank, and the other end of the outlet gas pipe 301 is connected to one side of the upper part of the coal gasification ventilation pipe 4.

[0019] During operation, the solar photovoltaic panel 1 receives solar energy and converts it into electrical energy. After processing by the solar controller, the electrical energy is stored in the battery. The electrical energy in the battery is transmitted to the positive electrode conductive rod 206 and the negative electrode conductive rod 203 of the electrolytic cell 2 through the positive electrode wire 201 and the negative electrode wire 202 to electrolyze the water in the electrolytic cell 2. The hydrogen produced by electrolysis is discharged through the hydrogen exhaust pipe 204, and the oxygen enters the second control box 3 through the oxygen exhaust pipe 205. After being compressed by the oxygen compressor, it is stored in the oxygen storage tank. The oxygen in the oxygen storage tank is transported to the coal gasification ventilation pipe 4 through the gas outlet pipe 301. At the same time, other substances can be added to the coal gasification ventilation pipe 4 through the gas filling pipe 401 to carry out the underground coal gasification reaction.

[0020] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3 For the installation of this renewable energy storage device, the solar photovoltaic panel 1 is first securely installed on the photovoltaic mounting frame 101, ensuring that its orientation and angle can maximize the acquisition of solar energy. The solar photovoltaic panel 1 is then connected to the solar controller, the battery, and the controller in the first control box 103 as required, ensuring that the positive wire 201 and the negative wire 202 are connected correctly. Other clean energy sources, such as wind power, can also be used here.

[0021] Regarding the water electrolysis hydrogen and oxygen production device, the partition 209 is accurately installed in the electrolysis cell 2, and the positions of the negative electrode conductive rod 203, positive electrode conductive rod 206, hydrogen exhaust pipe 204 and oxygen exhaust pipe 205 are reasonably arranged. The water inlet pipe 207 and the drain pipe 208 are installed and valves are set to facilitate the control of water inlet and outlet. The positive electrode wire 201 and the negative electrode wire 202 are reliably connected to the positive electrode conductive rod 206 and the negative electrode conductive rod 203, respectively.

[0022] In the underground coal gasification device, the coal gasification gasification inlet pipe 4 and the gas supply pipe 401 are installed, and the valve on the gas supply pipe 401 is set. The oxygen exhaust pipe 205 is connected to the second control box 3, so that the oxygen compressor works normally and delivers oxygen smoothly to the oxygen storage tank. The oxygen storage tank is connected to the coal gasification inlet pipe 4 through the gas outlet pipe 301. The controller in the first control box 103 and the controller in the second control box 3 can both be PLC controllers.

[0023] In actual operation, when there is sufficient sunlight, the solar photovoltaic panel 1 works efficiently, converting solar energy into electrical energy and storing it. When hydrogen and oxygen production is needed, the battery powers the electrolyzer 2 to start working, producing hydrogen and oxygen. The oxygen is processed and stored in the oxygen storage tank. Then, according to the needs of underground coal gasification, the oxygen is transported to the coal gasification gas pipe 4 through the gas outlet pipe 301. At the same time, the necessary substances are added through the gas filling pipe 401 to ensure the stable operation of the underground coal gasification process.

[0024] Implementation Results: Solar energy is collected by solar photovoltaic panels 1, processed by a solar controller, and stored in a battery. The battery then powers the electrolyzer 2 to produce hydrogen and oxygen through water electrolysis. This achieves efficient utilization of renewable energy from collection and storage to conversion. The electrolyzer 2 is equipped with a partition 209 to reasonably separate the electrolysis areas, ensuring a stable and orderly water electrolysis process and effectively improving energy conversion efficiency. This provides a stable source of hydrogen and oxygen for subsequent underground coal gasification.

[0025] Oxygen generated by electrolysis is delivered to the second control box 3 through the oxygen exhaust pipe 205. After being compressed by the oxygen compressor, it is stored in the oxygen storage tank and then precisely delivered to the coal gasification ventilation pipe 4 through the gas outlet pipe 301. This process works closely with the underground coal gasification process. At the same time, the controllers in the first control box 103 and the second control box 3 can precisely control the operation of the entire device. The gas supply pipe 401 and the valves on it can flexibly add substances according to actual needs, ensuring the stability and controllability of the underground coal gasification reaction, which is conducive to the production of high-quality chemical products.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical product production device combining underground coal gasification with new energy sources, comprising a renewable energy storage device, a water electrolysis hydrogen and oxygen production device, and an underground coal gasification device, characterized in that: The renewable energy storage device includes a solar photovoltaic panel (1), a solar controller is installed at the bottom of the solar photovoltaic panel (1), and the solar photovoltaic panel (1) is connected to the solar controller via a conductive wire (102). The solar photovoltaic panel (1) is also connected to a battery via the solar controller and the conductive wire (102). The water electrolysis hydrogen and oxygen production device includes an electrolytic cell (2), and a partition (209) is fixedly installed inside the electrolytic cell (2). The top two sides of the electrolytic cell (2) are located... A negative electrode conductive rod (203) and a positive electrode conductive rod (206) are respectively installed on both sides of the partition (209). A hydrogen exhaust pipe (204) is also installed next to the negative electrode conductive rod (203) installed on the top of the electrolytic cell (2), and an oxygen exhaust pipe (205) is also installed next to the positive electrode conductive rod (206) installed on the top of the electrolytic cell (2). The underground coal gasification device includes a coal gasification ventilation pipe (4), and a gas filling pipe (401) is installed at the top of the coal gasification ventilation pipe (4).

2. The chemical product production device combining underground coal gasification with new energy sources according to claim 1, characterized in that: The solar photovoltaic panel (1) is installed on the photovoltaic mounting frame (101). The solar photovoltaic panel (1) is connected to the controller in the first control box (103) through the storage battery connected to the solar controller. The storage battery is connected to a positive electrode wire (201) and a negative electrode wire (202).

3. A chemical product production device combining underground coal gasification with new energy sources according to claim 2, characterized in that: The other end of the positive electrode wire (201) is connected to the connection end of the positive electrode conductive rod (206), and the other end of the negative electrode wire (202) is connected to the connection end of the negative electrode conductive rod (203).

4. A chemical product production device combining underground coal gasification with new energy sources according to claim 1, characterized in that: The lower interior of the electrolytic cell (2) is connected. A water inlet pipe (207) is installed on the upper part of one side wall of the electrolytic cell (2), and a drain pipe (208) is installed on the lower part of the other side wall of the electrolytic cell (2). Valves are installed on both the water inlet pipe (207) and the drain pipe (208).

5. A chemical product production device combining underground coal gasification with new energy sources according to claim 1, characterized in that: One end of the oxygen exhaust pipe (205) is connected to a second control box (3), which contains a controller and an oxygen compressor. One end of the oxygen exhaust pipe (205) is connected to the input end of the oxygen compressor in the second control box (3), and the other end of the oxygen exhaust pipe (205) is connected to the oxygen storage tank through the oxygen compressor.

6. A chemical product production device combining underground coal gasification with new energy sources according to claim 5, characterized in that: The oxygen storage tank has an exhaust port equipped with a gas supply pipe (301). The other end of the gas supply pipe (301) is connected to one side of the upper part of the coal gasification gas pipe (4). The top of the coal gasification gas pipe (4) is equipped with a gas filling pipe (401) that penetrates and extends into the coal gasification gas pipe (4). A valve is installed on the gas filling pipe (401).

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