A wood gas recovery device

Abstract

The utility model discloses a wood gas recovery device relates to wood gas recovery field. The wood gas recovery device, including condensation spray integrated machine, condensation spray integrated machine left and right sides are installed with second smoke duct and first smoke duct, and the right side of second smoke duct is installed with electrostatic precipitator, and the right side of electrostatic precipitator is installed with third smoke duct, and the first smoke duct, second smoke duct and third smoke duct are connected with the smoke inner tube of sleeve in. The wood gas recovery device adopts double -layer water -tight pipe as the smoke duct structure, effectively blocks the leakage path of flammable gas from the microcrack or joint of pipe wall, and the liquid level detector fixedly connected in the highest place of first smoke duct, second smoke duct and third smoke duct inner wall, can detect whether the smoke inner tube appears the rupture when starting the wood gas recovery device every time, and provides data support for subsequent maintenance, ensures that the device long -term stable operation.

Description

Technical Field

[0001] This utility model relates to the field of wood gas recovery, and in particular to a wood gas recovery device. Background Technology

[0002] The wood gas recovery device relates to the field of biomass pyrolysis technology. It is used in the wood gas recovery structure of the fruit tree branch carbonization production line, which effectively reduces carbon emissions and is an important piece of equipment for the circular economy.

[0003] Wood gas recovery devices are used to collect, purify, and reuse wood gas. Their core function is to efficiently recover wood gas generated during biomass pyrolysis or gasification through technological means, avoiding resource waste and environmental pollution caused by direct emissions. Simultaneously, the recovered wood gas is converted into energy for heating. Wood gas recovery devices involve the field of biomass pyrolysis technology, particularly a secondary combustion structure for wood gas recovery in a fruit tree branch carbonization production line. However, most existing wood gas recovery devices use single-pipe flue gas ducts. After prolonged use, due to high temperatures, gas corrosion, and long-term mechanical vibration, micro-cracks or holes gradually appear on the inner wall of the pipe. These defects are initially difficult to detect with the naked eye, but during continuous flue gas ducting, some combustible gas can escape from the damaged areas, causing energy waste and potentially leading to safety hazards such as localized concentration exceeding standards. Utility Model Content

[0004] The purpose of this invention is to provide a wood gas recovery device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A wood gas recovery device includes a condensation spray integrated machine. A second smoke guide pipe and a first smoke guide pipe are respectively installed on the left and right sides of the condensation spray integrated machine. An electrostatic precipitator is installed on the right side of the second smoke guide pipe, and a third smoke guide pipe is installed on the right side of the electrostatic precipitator. A smoke guide inner tube is sleeved inside the first smoke guide pipe, the second smoke guide pipe, and the third smoke guide pipe. A liquid level detector is fixedly connected to the inner wall of the first smoke guide pipe, the second smoke guide pipe, and the third smoke guide pipe.

[0006] Each of the first, second, and third smoke guide pipes is fixedly connected to an auxiliary pipe. The auxiliary pipe is provided with a three-hole connecting pipe, which is connected to the auxiliary pipe via a flange.

[0007] The first, second, and third smoke guide pipes form a liquid flow cavity with the inner smoke guide pipe that is sleeved inside them.

[0008] A flow control mechanism is installed on the three-hole connecting pipe. The flow control mechanism is used to control the water flow in the three-hole connecting pipe. The flow control mechanism includes a first solenoid valve, a second solenoid valve and a third solenoid valve, which are installed on the three-hole connecting pipe respectively.

[0009] The end of the third flue pipe away from the electrostatic precipitator is fixedly connected to a wood gas release head, which is used to introduce wood gas into the combustion furnace.

[0010] The liquid level detector is installed at the highest point of the inner wall of the first, second, and third smoke guide pipes, and is used to detect the water level height in the liquid flow chamber.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This wood gas recovery device employs a double-layer water-sealed pipe structure as the flue gas guide. A dynamic liquid film barrier is formed by the water seal ring between the inner and outer pipe layers, effectively blocking the leakage path of combustible gas from micro-cracks or joints in the pipe wall. A liquid level detector is fixedly connected to the highest point of the inner wall of the first, second, and third flue gas guides, detecting whether any ruptures have occurred in the inner flue gas guides each time the device is started. A quantitative detection liquid is injected into the liquid flow chamber, and a liquid level sensor monitors the liquid level fluctuations in each pipe section in real time. This detection method is low-cost and provides data support for subsequent maintenance, ensuring the long-term stable operation of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the flow control mechanism of this utility model.

[0015] In the diagram: 1. First smoke guide pipe; 2. Integrated condenser spray unit; 3. Second smoke guide pipe; 4. Electrostatic precipitator; 5. Third smoke guide pipe; 6. Wood gas release head; 7. Auxiliary pipe; 8. Three-hole connecting pipe; 9. Flow control mechanism; 901. First solenoid valve; 902. Second solenoid valve; 903. Third solenoid valve; 10. Liquid level detector; 11. Inner smoke guide pipe; 12. Liquid flow chamber. Detailed Implementation

[0016] 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.

[0017] This utility model provides, for example Figure 1 and Figure 2 The wood gas recovery device shown includes a condenser-sprayer integrated unit 2, which serves as the core processing unit for wood gas recovery. The condenser-sprayer integrated unit 2 integrates condensation and spraying functions. The condensation module reduces the temperature of the wood gas through circulating cooling water, causing water vapor and tar to condense and precipitate. The spraying module further purifies the gas through high-pressure water mist, removing particulate matter and residual impurities.

[0018] The condenser spray integrated machine 2 has a second smoke guide pipe 3 and a first smoke guide pipe 1 installed on its left and right sides, respectively. An electrostatic precipitator 4 is installed on the right side of the second smoke guide pipe 3. The electrostatic precipitator 4 uses a high-voltage electric field to charge the residual dust particles in the gas, which are then adsorbed onto the dust collection plate, further purifying the wood gas. A third smoke guide pipe 5 is installed on the right side of the electrostatic precipitator 4. An inner smoke guide pipe 11 is connected inside the first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5. If the inner smoke guide pipe 11 ruptures, the detection liquid will abnormally seep downwards due to changes in gas pressure. The inner pipe 11, which is in direct contact with the wood gas, is made of high-temperature resistant alloy material and can withstand gas corrosion and thermal stress. Liquid level detectors 10 are fixedly connected to the inner walls of the first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5. The first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5 constitute the main channel for wood gas transmission. A double-layer water-sealed structure is adopted. A liquid flow cavity 12 is formed between the first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5 and the inner smoke guide pipe 11. Gas leakage is blocked by dynamic water seal.

[0019] Each of the first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5 is fixedly connected to an auxiliary pipe 7. The auxiliary pipe 7 is provided with a three-hole connecting pipe 8. The three-hole connecting pipe 8 is connected to the auxiliary pipe 7 through a flange. The auxiliary pipe 7 connects the liquid flow chamber 12 to the external water circulation system. The three-hole connecting pipe 8 can be quickly disassembled and assembled through the flange, which is convenient for maintenance.

[0020] The first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5 form a liquid flow cavity 12 between themselves and the inner smoke guide pipe 11 that is connected inside them.

[0021] A flow control mechanism 9 is installed on the three-hole connecting pipe 8. The flow control mechanism 9 is used to control the water flow in the three-hole connecting pipe 8. The flow control mechanism 9 includes a first solenoid valve 901, a second solenoid valve 902, and a third solenoid valve 903. The first solenoid valve 901, the second solenoid valve 902, and the third solenoid valve 903 are installed on the three-hole connecting pipe 8 respectively. The first solenoid valve 901, the second solenoid valve 902, and the third solenoid valve 903 precisely control the water level and flow rate in the liquid flow chamber 12. When the detection is started, the flow control mechanism 9 injects the detection liquid into each liquid flow chamber 12 at a flow rate of 0.5L / min to ensure that the liquid level is stable at the design threshold.

[0022] The third smoke guide pipe 5 is fixedly connected to a wood gas release head 6 at the end away from the electrostatic precipitator 4. The wood gas release head 6 is used to introduce wood gas into the combustion furnace. The wood gas release head 6 evenly introduces the purified wood gas into the combustion furnace, so that the gas enters the combustion furnace evenly.

[0023] The level detector 10 is installed at the highest point of the inner wall of the first smoke guide pipe 1, the second smoke guide pipe 3, and the third smoke guide pipe 5. The level detector 10 is used to detect the water level in the liquid flow chamber 12. The core principle of the level detector 10 is based on the correlation analysis between pressure difference and liquid level fluctuation: when the device is started, the flow control mechanism 9 injects a quantitative detection liquid into the liquid flow chamber 12 to form a stable water level. If there are micro-cracks or holes in the inner smoke guide pipe 11, the leaked gas will cause changes in the gas pressure inside the chamber, causing an abnormal drop in the liquid level. The level detector 10 captures the liquid level fluctuation through a high-precision sensor. When the drop exceeds a preset threshold, it immediately triggers an alarm signal and locates the faulty pipe section.

[0024] Example 1: This wood gas recovery device constructs a dynamic liquid film barrier through the first smoke guide pipe 1, the second smoke guide pipe 3, the third smoke guide pipe 5, and the inner smoke guide pipe 11. Combined with the water seal in the liquid flow chamber 12, it effectively blocks the leakage path of combustible gas from micro-cracks or joints in the pipe wall. Furthermore, through the linkage of the condenser spray integrated machine 2 and the electrostatic precipitator 4, it achieves the separation of wood vinegar / wood tar and the purification of waste gas. When micro-cracks or holes appear in the inner smoke guide pipe 11 during use, the leaked gas needs to penetrate the water seal layer to escape. The continuous circulation of the water seal liquid can dilute and carry away the leaked gas in time, significantly reducing the risk of explosion.

[0025] Example 2: Each time the wood gas recovery device is started, it is necessary to check whether the inner flue pipe 11 is ruptured. Liquid is introduced into the three-hole connecting pipe 8, and the flow control mechanism 9 injects the detection liquid into each liquid flow chamber 12 at a flow rate of 0.5L / min to ensure that the liquid level is stable at the design threshold. If a section of the flue pipe is ruptured, the detection liquid will abnormally seep or splash due to changes in gas pressure. The liquid level detector 10 can quickly identify the liquid level change and immediately trigger the liquid level threshold alarm. At the same time, it can locate the faulty inner flue pipe 11, which needs to be replaced with a new pipe for wood gas recovery. This detection method is low in cost and provides data support for subsequent maintenance, ensuring the long-term stable operation of the device.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wood gas recovery device, comprising a condenser spray integrated machine (2), characterized in that, The condensation spray integrated machine (2) is equipped with a second smoke guide pipe (3) and a first smoke guide pipe (1) on the left and right sides respectively. An electrostatic precipitator (4) is installed on the right side of the second smoke guide pipe (3). A third smoke guide pipe (5) is installed on the right side of the electrostatic precipitator (4). A smoke guide inner tube (11) is sleeved inside the first smoke guide pipe (1), the second smoke guide pipe (3) and the third smoke guide pipe (5). A liquid level detector (10) is fixedly connected to the inner wall of the first smoke guide pipe (1), the second smoke guide pipe (3) and the third smoke guide pipe (5).

2. The wood gas recovery device according to claim 1, characterized in that, An auxiliary pipe (7) is fixedly connected to the first smoke guide pipe (1), the second smoke guide pipe (3) and the third smoke guide pipe (5). A three-hole connecting pipe (8) is provided on the auxiliary pipe (7). The three-hole connecting pipe (8) is connected to the auxiliary pipe (7) through a flange.

3. The wood gas recovery device according to claim 1, characterized in that, The first smoke guide tube (1), the second smoke guide tube (3) and the third smoke guide tube (5) form a liquid flow cavity (12) between them and the inner smoke guide tube (11) inside.

4. The wood gas recovery device according to claim 2, characterized in that, A flow control mechanism (9) is installed on the three-hole connecting pipe (8). The flow control mechanism (9) is used to control the water flow in the three-hole connecting pipe (8). The flow control mechanism (9) includes a first solenoid valve (901), a second solenoid valve (902), and a third solenoid valve (903). The first solenoid valve (901), the second solenoid valve (902), and the third solenoid valve (903) are respectively installed on the three-hole connecting pipe (8).

5. A wood gas recovery device according to claim 1, characterized in that, The third smoke guide pipe (5) is fixedly connected to a wood gas release head (6) at the end away from the electrostatic precipitator (4). The wood gas release head (6) is used to introduce wood gas into the combustion furnace.

6. A wood gas recovery device according to claim 3, characterized in that, The liquid level detector (10) is installed at the highest point of the inner wall of the first smoke guide pipe (1), the second smoke guide pipe (3) and the third smoke guide pipe (5). The liquid level detector (10) is used to detect the water level in the liquid flow chamber (12).

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