A wood vinegar, wood tar collection device

Abstract

The utility model discloses a wood vinegar, wood tar collecting device, including collecting jar, the inside upper and lower division of collecting jar is condensed cavity and collection cavity, installs the condenser pipe in the condensed cavity, and the liquid outlet of condenser pipe is located in the collection cavity, and the top of collecting jar is equipped with the air cylinder, and the air cylinder is connected with the condenser pipe, the air cylinder is installed with the pressurized gas tank filled with inert gas, the air cylinder is installed with the rotary partition subassembly in, and including the rotary rod of motor drive rotation and the sealing block fixed on the rotary rod, the size of sealing block can close the connection mouth of air cylinder and condenser pipe air inlet, and can close the connection mouth of air cylinder and pressurized gas tank, and the top end and the bottom end side of condensed cavity are equipped with the water inlet and the water inlet respectively, the utility model discloses through the integration pressurized cleaning and self -adaptation exhaust function, can effectively remove the condensate in the condenser pipe, prevents the jam, and ensures the safety and high efficiency of collection process.

Description

Technical Field

[0001] This utility model relates to the field of biomass energy processing equipment technology, and in particular to a wood vinegar and wood tar collection device. Background Technology

[0002] During the dry distillation of wood or the pyrolysis of biomass, a mixed vapor containing wood vinegar, wood tar, and combustible gases is generated. This mixed vapor needs to be condensed before it can be collected. Existing collection devices typically include condenser tubes and a collection tank. The mixed vapor is cooled in the condenser tubes, and the wood tar (condensation dew point approximately 80-150°C) and wood vinegar (condensation dew point approximately 30-80°C) condense into liquids one after the other, and are finally introduced into the collection tank.

[0003] However, in actual operation, the temperature of the mixed steam gradually decreases as it flows through the condenser. When the temperature of the condenser wall drops below the dew point of the wood tar, the viscous wood tar solidifies and adheres firmly to the condenser wall. Similarly, when the temperature further decreases to the dew point of the wood vinegar, the wood vinegar also condenses. As the operating time increases, these condensates accumulate, eventually leading to a reduction in the flow cross-section of the condenser, an increase in flow resistance, and even complete blockage. This severely affects the continuity and efficiency of production, and makes cleaning and maintenance extremely difficult. To increase the condensation area and improve condensation efficiency, existing technologies often design the condenser as a coil structure composed of multiple U-shaped tubes connected in series. While this structure effectively extends the steam path and heat exchange time, it also makes it easier for condensates, especially viscous wood tar, to deposit at the bends of the U-shaped tubes, thus increasing the risk of blockage. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a wood vinegar and wood tar collection device. By integrating pressurized cleaning and adaptive exhaust functions, it can effectively remove condensate from the condenser tube, prevent blockage, and ensure the safety and efficiency of the collection process.

[0005] The technical solution of this utility model is as follows:

[0006] A wood vinegar and wood tar collection device includes a collection tank, which is divided into a condensation chamber and a collection chamber. A condenser tube is installed in the condensation chamber, with its outlet located within the collection chamber. A ventilation cylinder is located at the top of the collection tank and connected in series with the condenser tube. A pressurized gas tank filled with inert gas is installed on the ventilation cylinder. A rotating partition assembly is installed inside the ventilation cylinder, including a rotating rod driven by a motor and a sealing block fixed to the rotating rod. The sealing block is large enough to seal the connection between the ventilation cylinder and the air inlet of the condenser tube, and also to seal the connection between the ventilation cylinder and the pressurized gas tank. A drain outlet and a water inlet are respectively provided on the top and bottom sides of the condensation chamber.

[0007] The working principle of the above technical solution is as follows:

[0008] In practical use, the wood vinegar and wood tar collection device of this utility model operates in normal condensation mode. Mixed steam enters from the ventilation cylinder and is cooled by cooling water injected from the inlet as it flows through the condenser tube. The wood vinegar and wood tar condense into liquids and flow into the collection chamber below by gravity. Simultaneously, the motor drives the rotating rod to rotate, causing the sealing block to rotate and block the steam inlet of the ventilation cylinder. This forms a closed pressurized circuit between the pressurized gas tank and the condenser tube. High-pressure gas enters the condenser tube, generating impact and shearing force on the tube wall, effectively peeling off and removing the wood tar and wood vinegar condensate adhering to the tube wall and bends. The flushed liquid enters the collection chamber with the airflow, achieving reliable switching of the working mode. By performing this operation periodically or as needed, the condenser tube can be kept unobstructed for a long time.

[0009] This invention enables real-time online purging of the condenser tubes through an air exchange cylinder and a rotating partition assembly. The pressurized gas tank, in conjunction with the rotating partition assembly, can adjust the system pressure, effectively remove condensate from the condenser tube walls, optimize condensation conditions, solve blockage problems, improve collection efficiency, and ensure continuous and safe collection.

[0010] In a further technical solution, an exhaust pipe is installed on the top side of the collection chamber. The exhaust pipe is an open pipe at one end, and the open end of the exhaust pipe is an air inlet that is connected to the collection chamber. Multiple exhaust holes are provided on the side wall of the exhaust pipe, and the air pressure in the collection chamber is adjusted by the exhaust pipe.

[0011] In a further technical solution, a fixed rod is provided axially inside the exhaust pipe, and a slider with an outer diameter matching the inner diameter of the exhaust pipe is slidably sleeved on the fixed rod. The diameter of the air inlet is smaller than the diameter of the slider. A spring is installed between the slider and the inner wall of the exhaust pipe. When the air pressure in the collection chamber increases, it pushes the slider to compress the spring and opens the exhaust port to exhaust air. When the air pressure decreases, the spring returns to its original position and closes the exhaust port, thereby realizing automatic adjustment of the pressure in the collection chamber.

[0012] In a further technical solution, the condenser tube is composed of multiple "U"-shaped tubes connected in series, which extends the condensation path and improves the heat exchange efficiency.

[0013] In a further technical solution, both the sealing block and the slider are made of ultra-high molecular weight polyethylene (UHMWPE). The surface of UHMWPE is not easily adhered to by viscous substances and has good corrosion resistance and wear resistance.

[0014] In a further technical solution, the collection tank is also equipped with a PLC controller, which can automatically control the start and stop of the motor, the gas supply of the pressurized gas tank, and various system parameters to achieve intelligent operation.

[0015] In a further technical solution, the pressurized gas tank is also connected to a heating device, which can heat the inert gas to improve the purging effect, and is especially suitable for cleaning viscous wood tar.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model achieves real-time online purging of the condenser tube through an air exchange cylinder and a rotating partition assembly. The pressurized gas tank, together with the rotating partition assembly, can adjust the system pressure, effectively remove condensate from the condenser tube wall, optimize condensation conditions, solve the blockage problem, improve collection efficiency, and ensure collection continuity and safety.

[0018] 2. The automatic pressure regulation structure of the exhaust pipe can maintain stable pressure in the collection chamber, preventing external air from contaminating the product or causing risks. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the wood vinegar and wood tar collection device described in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the ventilation cylinder;

[0021] Figure 3 This is a cross-sectional structural diagram of the exhaust pipe.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Collection tank; 20. Condensation chamber; 21. Condensation pipe; 22. Water inlet; 23. Drain outlet; 30. Air exchanger; 31. Rotating rod; 32. Sealing block; 40. Pressurized air tank; 50. Collection chamber; 60. Exhaust pipe; 61. Fixing rod; 62. Sliding block; 63. Spring; 64. Air inlet; 65. Exhaust outlet. Detailed Implementation

[0024] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0025] Example:

[0026] A device for collecting wood vinegar and wood tar, such as Figure 1 and Figure 2As shown, the system includes a collection tank 10, which is divided into a condensation chamber 20 and a collection chamber 50. A condenser tube 21 is installed in the condensation chamber 20, and the liquid outlet of the condenser tube 21 is located in the collection chamber 50. A ventilation cylinder 30 is provided at the top of the collection tank 10, and the ventilation cylinder 30 is connected in series with the condenser tube 21. A pressurized gas tank 40 filled with inert gas is installed on the ventilation cylinder 30. A rotating partition assembly is installed inside the ventilation cylinder 30, including a rotating rod 31 driven by a motor and a sealing block 32 fixed on the rotating rod 31. The size of the sealing block 32 is sufficient to seal the connection between the ventilation cylinder 30 and the air inlet of the condenser tube 21, and also to seal the connection between the ventilation cylinder 30 and the pressurized gas tank 40. A drain outlet 23 and a water inlet 22 are respectively provided on the top and bottom sides of the condensation chamber 20.

[0027] In practical use, the wood vinegar and wood tar collection device of this utility model operates in normal condensation mode. Mixed steam enters from the ventilation cylinder 30 and flows through the condenser pipe 21, where it is cooled by cooling water injected from the water inlet 22. The wood vinegar and wood tar condense into liquids and flow into the collection chamber 50 below by gravity. Simultaneously, the motor drives the rotating rod 31 to rotate, causing the sealing block 32 to rotate and block the steam inlet of the ventilation cylinder 30. This forms a closed pressurized circuit between the pressurized gas tank 40 and the condenser pipe 21. The high-pressure gas enters the condenser pipe 21, generating impact and shearing forces on the pipe wall, effectively peeling off and removing the wood tar and wood vinegar condensate adhering to the pipe wall and bends of the condenser pipe 21. The flushed liquid enters the collection chamber 50 with the airflow, achieving reliable switching of the working mode. By performing this operation periodically or as needed, the condenser pipe 21 can be kept unobstructed for a long time.

[0028] This invention enables real-time online purging of the condenser tube 21 through the air exchange cylinder 30 and the rotating partition assembly. The pressurized gas tank 40, in conjunction with the rotating partition assembly, can adjust the system pressure, effectively remove condensate from the tube wall of the condenser tube 21, optimize condensation conditions, solve blockage problems, improve collection efficiency, and ensure continuous and safe collection.

[0029] In another embodiment, such as Figure 3 As shown, an exhaust pipe 60 is installed on the top side of the collection chamber 50. The exhaust pipe 60 is a pipe with one end open, and the open end of the exhaust pipe 60 is an air inlet 64, which is connected to the collection chamber 50. Multiple exhaust holes 65 are provided on the side wall of the exhaust pipe 60, and the air pressure in the collection chamber 50 is adjusted by the exhaust pipe 60.

[0030] In another embodiment, a fixed rod 61 is provided axially inside the exhaust pipe 60. A slider 62 with an outer diameter matching the inner diameter of the exhaust pipe 60 is slidably sleeved on the fixed rod 61. The diameter of the air inlet 64 is smaller than the diameter of the slider 62. A spring 63 is installed between the slider 62 and the inner wall of the exhaust pipe 60. When the air pressure in the collection chamber 50 increases, the slider 62 is pushed to compress the spring 63, opening the exhaust port 65 to exhaust air. When the air pressure decreases, the spring 63 returns to its original position, closing the exhaust port 65, thereby realizing automatic adjustment of the pressure in the collection chamber 50.

[0031] In another embodiment, the condenser tube 21 is composed of multiple U-shaped tubes connected in series, which extends the condensation path and improves the heat exchange efficiency.

[0032] In another embodiment, both the sealing block 32 and the slider 62 are made of ultra-high molecular weight polyethylene. The surface of ultra-high molecular weight polyethylene is not easily adhered to by viscous substances and has good corrosion resistance and wear resistance.

[0033] In another embodiment, the collection tank 10 is also equipped with a PLC controller, which can automatically control the start and stop of the motor, the air supply of the pressurized gas tank 40 and various system parameters to achieve intelligent operation.

[0034] In another embodiment, the pressurized gas tank 40 is also connected to a heating device, which can heat the inert gas to improve the purging effect, especially suitable for cleaning viscous wood tar.

[0035] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A device for collecting wood vinegar and wood tar, comprising a collection tank, wherein the collection tank is divided into a condensation chamber and a collection chamber, a condenser tube is installed in the condensation chamber, and the liquid outlet end of the condenser tube is located in the collection chamber, characterized in that, The top of the collection tank is equipped with a ventilation cylinder, which is connected in series with the condenser pipe. A pressurized gas tank filled with inert gas is installed on the ventilation cylinder. A rotating partition assembly is installed inside the ventilation cylinder, including a rotating rod driven by a motor and a sealing block fixed on the rotating rod. The size of the sealing block is sufficient to seal the connection between the ventilation cylinder and the air inlet of the condenser pipe, and also to seal the connection between the ventilation cylinder and the pressurized gas tank. A drain outlet and a water inlet are respectively provided on the top and bottom sides of the condensation chamber.

2. The wood vinegar and wood tar collection device according to claim 1, characterized in that, An exhaust pipe is installed on the top side of the collection chamber. The exhaust pipe is an open pipe with an air inlet at one end, which is connected to the collection chamber. Multiple exhaust holes are provided on the side wall of the exhaust pipe.

3. The wood vinegar and wood tar collection device according to claim 2, characterized in that, A fixed rod is provided axially inside the exhaust pipe. A slider with an outer diameter matching the inner diameter of the exhaust pipe is slidably sleeved on the fixed rod. The diameter of the air inlet is smaller than the diameter of the slider. A spring is installed between the slider and the inner wall of the exhaust pipe.

4. The wood vinegar and wood tar collection device according to claim 1, characterized in that, The condenser tube is composed of multiple "U"-shaped tubes connected in series.

5. The wood vinegar and wood tar collection device according to claim 1, characterized in that, Both the sealing block and the slider are made of ultra-high molecular weight polyethylene.

6. The wood vinegar and wood tar collection device according to claim 1, characterized in that, The collection tank is also equipped with a PLC controller.

7. The wood vinegar and wood tar collection device according to claim 1, characterized in that, The pressurized gas tank is also connected to a heating device.

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