Biogas residue drying tail gas condensing device with self-cleaning function

Abstract

The utility model relates to the technical field of biogas residue drying tail gas treatment, and discloses a biogas residue drying tail gas condensing device with a self-cleaning function, which comprises a tail gas condensing device, air pipes are arranged at the top and the bottom of the tail gas condensing device, and a transparent window is arranged on the front side of the tail gas condensing device. A rotary window cleaner is arranged on the transparent window; by means of the tail gas condensing device and the internal structure which are reasonably designed, the contact time of tail gas and the condensing surface can be effectively prolonged, the condensing efficiency can be improved, water vapor and pollutants in the tail gas can be removed, and the tail gas condensing device has the advantages that the tail gas condensing device and the internal structure are reasonable in design. Residual sludge and dust in tail gas are reduced, and the condensation effect is improved. Particularly, through the staggered design of the baffles and the wave-shaped blades, the flowing direction and path of the tail gas are further improved, and the condensation process of the tail gas is optimized.

Description

Technical Field

[0001] This utility model relates to the field of biogas drying tail gas treatment technology, and in particular to a biogas drying tail gas condensation device with self-cleaning function. Background Technology

[0002] The process of drying biogas residue involves centrifuging and dewatering anaerobic fermentation and wastewater treatment to obtain a paste-like sludge with a moisture content of 70% to 80%, followed by granulation and steam drying and dewatering, and then storing and transporting the dried biogas residue for disposal.

[0003] During sludge drying, water vapor carries sludge dust and a certain odor. These exhaust gases require treatment before being released. Current treatment methods typically use cyclone dust collectors for initial dust removal, followed by condensation using an indirect water-cooled heat exchanger. The condensed wastewater is then discharged into the sewage system for further treatment. However, due to limitations in dust removal and condensation efficiency, some sludge dust in the exhaust gas is not completely removed, resulting in the condensate from the condensation unit not being discharged smoothly and severely impacting the deodorization system.

[0004] The condensate and residual sludge and dust in the exhaust gas can make the liquid in the chemical cleaning tower of the deodorization system turbid, and the nozzles and pipes are prone to clogging, further affecting the normal operation of the deodorization system. At the same time, poor drainage of condensate can also lead to condensate leakage, increasing the structural pressure of the exhaust gas system and affecting the long-term operation of the equipment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a biogas condensation device with a self-cleaning function for the drying of biogas residue.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A biogas condensation device with self-cleaning function includes a gas condensation unit. Air ducts are installed at the top and bottom of the gas condensation unit. A transparent window is provided on the front of the gas condensation unit, and a rotating window cleaner is installed on the transparent window. Staggered baffles are installed on the inner walls of both sides of the gas condensation unit, and detachable corrugated blades are installed on the baffles. A back plate is provided on the side of the gas condensation unit away from the transparent window. A nozzle is installed on the inner side of the back plate, and a condensate drain pipe is provided on the outer side of the back plate.

[0008] Preferably, the exhaust gas condensation device has a movable door installed on its front, and a transparent viewing window is installed on the movable door.

[0009] Preferably, the side of the tail gas condensing device is a parallelogram structure, and the position of the tail gas condensing device close to the front of the movable door is higher than the position of the tail gas condensing device close to the back of the tail gas condensing device.

[0010] Preferably, the baffle is arranged in an inclined manner.

[0011] Preferably, the bottom of the tail gas condensing device is provided with a valve for controlling the tail gas injected into the tail gas condensing device through the air pipe.

[0012] Preferably, the air compressor, the pressure water supply tank and the electrical control system are further included.

[0013] Preferably, the air compressor is in communication with the inside of the pressure water supply tank through the air inlet pipe, the pressure water supply tank is in communication with the spray head through the extension air pipe, and the side of the pressure water supply tank is provided with a water inlet pipe, an electrical pressure gauge and a safety valve.

[0014] Preferably, the water inlet pipe is provided with a water inlet electromagnetic valve, and the extension air pipe is provided with a water outlet electromagnetic valve.

[0015] Preferably, the electrical control system is electrically connected with the air inlet pipe.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. Excellent dust removal and condensation effect: through the reasonable design of the tail gas condensing device and the internal structure, the contact time of the tail gas and the condensation surface can be effectively increased, the condensation efficiency is improved, the water vapor and pollutants in the tail gas are removed, the residual sludge dust in the tail gas is reduced, and the condensation effect is improved. Especially through the staggered design of the baffle and the wave-shaped blade, the direction and path of the tail gas flow are further improved, and the condensation process of the tail gas is optimized.

[0018] 2. Self-cleaning function, reducing maintenance cost: the tail gas condensing device is equipped with a rotary window cleaner and a spray head, which can realize automatic cleaning function of the inside of the device, especially the dust and sludge accumulated in the condensation process can be effectively removed through the cleaning of the cleaner and the spray head. The transparent window allows the operator to conveniently observe the dust deposition in the tail gas condensing device, so as to timely clean and maintain, thereby reducing the cost and workload of manual maintenance.

[0019] 3. Smooth drainage of condensate water, ensuring stable operation of the equipment: the baffle of the tail gas condensing device is designed in an inclined structure, which ensures that the condensate water can flow smoothly to the condensate water drain pipe for drainage through the action of gravity, avoids the occurrence of water accumulation phenomenon, reduces the burden of the drainage system, and improves the reliability and stability of the equipment.

[0020] 4. Integrated automation control system, improving work efficiency: The device is equipped with an advanced electrical control system, which can realize the automatic control of components such as air compressor, water inlet solenoid valve, water outlet solenoid valve, etc., to ensure the coordinated work of each component, automatically start or stop when the set working condition is reached, reduce manual intervention, and improve the work efficiency and safety of the system.

[0021] 5. Prolong the service life of the equipment: Through the optimized self-cleaning function and efficient condensate water discharge design, the device can effectively prevent the damage caused by internal dirt accumulation and condensate water accumulation, reduce the wear of the equipment, thereby prolong the service life of the device, and improve the long-term stability and reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure diagram of a biogas residue drying tail gas condensing device with self-cleaning function is provided for the embodiments of the present application.

[0023] Figure 2 An internal structure diagram of a biogas residue drying tail gas condensing device with self-cleaning function is provided for the embodiments of the present application.

[0024] Figure 3 A side structure diagram of a biogas residue drying tail gas condensing device with self-cleaning function is provided for the embodiments of the present application.

[0025] Figure 4 A structure diagram of a tail gas condensing device back plate in a biogas residue drying tail gas condensing device with self-cleaning function is provided for the embodiments of the present application.

[0026] Figure 5 A structure diagram of a tail gas condensing device back plate, a pressure water supply tank and an air compressor in a biogas residue drying tail gas condensing device with self-cleaning function is provided for the embodiments of the present application.

[0027] In the figure: 1-tail gas condensing device, 2-air pipe, 3-transparent window, 4-rotary window cleaner, 5-valve, 6-condensate water drain pipe, 7-baffle, 8-wavy blade, 9-tail gas condensing device back plate, 10-sprayer, 11-electric contact pressure gauge, 12-safety valve, 13-pressure water supply tank, 14-water outlet solenoid valve, 15-water inlet pipe, 16-water inlet solenoid valve, 17-air compressor, 18-electrical control system, 19-air inlet pipe, 20-movable door, 21-extended air pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all.

[0029] Referring to Figures 1 to 5 The utility model provides a kind of biogas residue drying tail gas condensing device with self-cleaning function, including tail gas condensing device 1, the top and bottom of the tail gas condensing device 1 are provided with air pipe 2, the front of the tail gas condensing device 1 is provided with transparent window 3, and the transparent window 3 is provided with rotary window cleaner 4;Interwall of the both sides of the tail gas condensing device 1 is mounted with staggered baffle 7, and detachable wave blade 8 is installed on baffle 7;Tail gas condensing device backplate 9 is provided on the side of the tail gas condensing device 1 away from transparent window 3, and the inside of the tail gas condensing device backplate 9 is mounted with shower head 10, and the outside of the tail gas condensing device backplate 9 is provided with condensate water drain pipe 6.

[0030] Tail gas is introduced into tail gas condensing device 1 by air pipe 2.In the tail gas condensing device 1, baffle 7 is staggered and plays a guiding role, to ensure that the path of the tail gas flowing from bottom to top is more tortuous, thereby increasing the flow time and travel of the tail gas in the tail gas condensing device 1.This design enables the tail gas to fully contact with wave blade 8, optimizing the heat exchange efficiency.As the temperature of the tail gas decreases, water vapor condenses to form condensate water, which is discharged out of the tail gas condensing device 1 through condensate water drain pipe 6.Transparent window 3 is installed on the front of the tail gas condensing device 1, and users can observe the deposition of dust inside the tail gas condensing device 1 through transparent window 3, facilitating timely discovery and handling of problems.In order to keep transparent window 3 clean, transparent window 3 is equipped with rotary window cleaner 4, which can automatically clean transparent window 3 through the rotating action of rotary window cleaner 4, ensuring that transparent window 3 always remains clear.In addition, shower head 10 is installed inside the tail gas condensing device backplate 9, which sprays water onto wave blade 8 through a pressure water supply system for washing and cleaning the surface of wave blade 8, preventing the accumulation of dust and dirt, thereby maintaining the heat exchange efficiency of wave blade 8.This design not only improves the tail gas condensing effect, but also facilitates the daily maintenance and cleaning of the equipment, reduces the impact on the deodorization system, and prolongs the service life of the equipment.

[0031] As a preferred embodiment of the utility model, the tail gas condensing device 1 is made of stainless steel.

[0032] As a preferred embodiment of the utility model, the front of the tail gas condensing device 1 is movably mounted with a movable door 20, and the transparent window 3 is installed on the movable door 20.

[0033] As a preferred embodiment of the utility model, the transparent window 3 is made of glass.

[0034] As a preferred embodiment of the utility model, the side of the tail gas condensing device 1 is a parallelogram structure, the front position of the tail gas condensing device 1 close to the movable door 20 is higher than the back position of the tail gas condensing device 1 close to the tail gas condensing device back plate 9, by utilizing the gravity effect, the condensed water can flow from the device interior to the condensed water drain pipe 6 naturally, avoids the occurrence of the water accumulation phenomenon, and reduces the dependence of the system on external drainage.

[0035] As a preferred embodiment of the utility model, the baffle 7 is inclinedly arranged, ensuring that the condensed water can flow to the condensed water drain pipe 6 rapidly during the tail gas condensing process, avoiding that the condensed water accumulates on the baffle 7 and affects the normal operation of the device. Through the inclined design, the condensed water can automatically flow to the condensed water drain pipe 6 under the gravity effect, reducing the burden of the drainage system and improving the efficiency of the condensed water discharge. In addition, the inclined arrangement of the baffle 7 not only helps the effective discharge of the condensed water, but also optimizes the direction and path of the tail gas flow. As the tail gas passes through the baffle 7, the speed and direction of the airflow will change, and this airflow adjustment can make the water vapor in the tail gas more fully contact the condensing surface, improving the tail gas condensing efficiency. At the same time, the inclined angle setting of the baffle 7 also reduces the accumulation of dirt and dust inside the device, reducing the difficulty of subsequent cleaning and maintenance.

[0036] As a preferred embodiment of the utility model, the bottom of the tail gas condensing device 1 is provided with a valve 5 for controlling the tail gas injected into the tail gas condensing device 1 through the air pipe 2.

[0037] As a preferred embodiment of the utility model, it further includes an air compressor 17, a pressure water supply tank 13 and an electrical control system 18.

[0038] As a preferred embodiment of the utility model, the air compressor 17 is in communication with the inside of the pressure water supply tank 13 through an air inlet pipe 19, the pressure water supply tank 13 is in communication with the spray head 10 through an extension air pipe 21, and the side of the pressure water supply tank 13 is provided with a water inlet pipe 15, an electrical pressure gauge 11 and a safety valve 12.

[0039] As a preferred embodiment of the utility model, the pressure water supply tank 13 is made of stainless steel.

[0040] As a preferred embodiment of the utility model, a water inlet solenoid valve 16 is arranged on the water inlet pipe 15, and a water outlet solenoid valve 14 is arranged on the extension air pipe 21.

[0041] As a preferred embodiment of the utility model, the electrical control system 18 is electrically connected with the air inlet pipe 19.

[0042] The air compressor 17 is connected with the pressure water supply tank 13 through the air inlet pipe 19 to provide the required compressed air. When the system needs to be cleaned or maintained, the air compressor 17 is started, and the compressed air enters the pressure water supply tank 13 through the air inlet pipe 19, is stored and provides stable pressure.

[0043] The side of the pressure water supply tank 13 is provided with a water inlet pipe 15, an electric connection pressure gauge 11 and a safety valve 12. The water inlet pipe 15 is used to introduce external water supply, and a water inlet electromagnetic valve 16 is installed on the water inlet pipe 15 to control the opening and closing of the water flow through the electrical control system 18. The electric connection pressure gauge 11 monitors the pressure change inside the pressure water supply tank 13 in real time, and once the preset pressure is reached, the safety valve 12 will automatically release the excessive pressure to ensure the safe operation of the system. When the system needs water supply, the pressure water supply tank 13 transmits high-pressure air to the spray head 10 through the extension air pipe 21, and the spray head 10 sprays air onto the wave-shaped blade 8 for washing the wave-shaped blade 8 and cleaning the inside of the tail gas condensing device 1. The water outlet electromagnetic valve 14 provided on the extension air pipe 21 is controlled by the instruction switch of the electrical control system 18 to accurately control the release of the water flow. The electrical control system 18 is responsible for the automatic control of the entire air supply and water supply process to ensure the coordinated work of various components (air compressor, water inlet pipe, electromagnetic valve, spray head, etc.). The system adjusts the start and stop of the air compressor 17 according to the real-time demand, controls the opening and closing of the electromagnetic valve 16 of the water inlet pipe 15 and the water outlet electromagnetic valve 14 of the extension air pipe 21, so as to ensure the efficient operation of the cleaning system.

[0044] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A biogas residue drying tail gas condensing device with self-cleaning function, characterized in that, The exhaust gas condensing device (1) is provided with air pipes (2) at the top and bottom, a transparent window (3) is arranged on the front side of the exhaust gas condensing device (1), and a rotary window cleaner (4) is arranged on the transparent window (3); Interlaced baffles (7) are arranged on the inner walls of both sides of the exhaust gas condensing device (1), and detachable wave-shaped blades (8) are arranged on the baffles (7); An exhaust gas condensing device back plate (9) is arranged on the side of the exhaust gas condensing device (1) away from the transparent window (3), a spray head (10) is arranged on the inner side of the exhaust gas condensing device back plate (9), and a condensate water drain pipe (6) is arranged on the outer side of the exhaust gas condensing device back plate (9).

2. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 1, characterized in that, An activity door (20) is movably arranged on the front side of the exhaust gas condensing device (1), and the transparent window (3) is arranged on the activity door (20).

3. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 2, characterized in that, The side of the exhaust gas condensing device (1) is in a parallelogram structure, the front side of the exhaust gas condensing device (1) close to the activity door (20) is higher than the back side of the exhaust gas condensing device (1) close to the exhaust gas condensing device back plate (9).

4. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 3, characterized in that, The baffles (7) are arranged in an inclined manner.

5. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 1, characterized in that, A valve (5) is arranged at the bottom of the exhaust gas condensing device (1) to control the exhaust gas injected into the exhaust gas condensing device (1) through the air pipe (2).

6. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 1, characterized in that, An air compressor (17), a pressure water supply tank (13), and an electrical control system (18) are further included.

7. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 6, characterized in that, The air compressor (17) is in communication with the inside of the pressure water supply tank (13) through an air inlet pipe (19), the pressure water supply tank (13) is in communication with the spray head (10) through an extension air pipe (21), and the side of the pressure water supply tank (13) is provided with a water inlet pipe (15), an electrical pressure gauge (11), and a safety valve (12).

8. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 7, characterized in that, A water inlet electromagnetic valve (16) is arranged on the water inlet pipe (15), and a water outlet electromagnetic valve (14) is arranged on the extension air pipe (21).

9. The biogas residue drying tail gas condensing device with self-cleaning function according to claim 6, characterized in that, The electrical control system (18) is electrically connected with the air inlet pipe (19).

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