A dehydration device for purifying biomass natural gas

Abstract

The utility model discloses a kind of dehydration equipment for biomass natural gas purification, it includes tank body and the drying agent bin being arranged in tank body, the drying agent bin be arranged in the upper half of tank body, drying agent bin is filled with drying agent;Rotary helical blade is arranged in the tank body of drying agent bin lower part, the helical blade is frame type structure, and horizontal silk thread is arranged in the frame of helical blade.Based on the way of solid physical water absorption, the front end of drying agent is additionally provided with rotating blade, and horizontal silk thread is arranged on the blade, the blade drives silk thread to collide with moisture in biomass natural gas, so that moisture is adsorbed on silk thread and discharged, and then further dehydration is carried out by drying agent, so as to prolong the service period of drying agent.

Description

Technical Field

[0001] This utility model relates to purification equipment for biomass fuels, specifically a dehydration device for purifying biomass natural gas. Background Technology

[0002] Biomass natural gas is a renewable natural gas produced from urban and rural organic waste such as crop straw, livestock and poultry manure, and kitchen waste through anaerobic fermentation and purification. Its main components include methane, hydrogen, and carbon monoxide.

[0003] Before purification, the raw materials have a relatively complex composition after fermentation and cannot be used directly as fuel. Purification is necessary, primarily involving desulfurization and dehydration. There are three main methods for dehydrating biomass natural gas: cold separation, solvent absorption, and solid physical water absorption. Cold separation and solvent absorption are relatively inefficient; therefore, solid physical absorption using desiccants is a more reasonable and faster method. After saturation, the desiccant needs to be regenerated for reuse. To achieve uninterrupted dehydration, multiple sets of desiccants can be recycled, which increases the overall space required for the equipment. Summary of the Invention

[0004] This utility model is a dehydration device for purifying biomass natural gas. Based on the solid physical water absorption method, it adds rotating blades at the front end of the desiccant. The blades are equipped with transverse filaments. The blades drive the filaments to collide with the moisture in the biomass natural gas, causing the moisture to be adsorbed on the filaments and discharged. Then, the desiccant further dehydrates the water, thereby extending the service life of the desiccant.

[0005] The present invention adopts the following technical solution:

[0006] A dehydration device for purifying biomass natural gas includes a tank and a desiccant chamber located inside the tank. The desiccant chamber is located in the upper part of the tank and is filled with desiccant. Rotating spiral blades are provided in the lower part of the tank. The spiral blades have a frame structure and transverse filaments are provided within the frame of the spiral blades.

[0007] The tank has an air inlet pipe and a water outlet pipe at the bottom, and an air outlet pipe at the top. A drive motor is located at the center of the top of the tank, and a drive shaft extending into the center of the tank is located below the drive motor. The drive shaft drives the spiral blades.

[0008] The spiral blade has a square frame structure, and multiple evenly distributed filaments are provided inside the spiral blade. The filaments are distributed laterally inside the spiral blade. The inner wall of the tank is provided with an L-shaped water receiving groove, which is located at the edge corresponding to the spiral blade.

[0009] Furthermore, a tubular inner wall is provided on the inner wall of the tank, and a space for water drainage is left between the inner wall and the side wall of the tank. The inner wall and the side wall of the tank are connected by evenly distributed connecting plates; the water receiving trough is provided on the inner wall.

[0010] The inner wall corresponding to the bottom of the water receiving tank is provided with a ring-shaped water outlet groove, which is a through structure and connects the two sides of the inner wall.

[0011] The outer end frame of the spiral blade is provided with a notch groove, and a water flow hole is provided below the notch groove, extending to the bottom of the frame; the outer end of the wire is connected to the bottom of the notch groove; the water flow hole corresponds to the middle of the water receiving groove.

[0012] Furthermore, the spiral blades are provided in multiple sets evenly distributed on the drive shaft, and the water receiving tank and water outlet tank are provided in multiple sets accordingly.

[0013] The desiccant compartment is equipped with a grid plate at the bottom to support the desiccant, and a water receiving tray is provided at the bottom of the desiccant compartment.

[0014] Furthermore, the water receiving tray is provided with multiple baffles evenly distributed in a ring. The bottom of the baffle is provided with a water-blocking edge perpendicular to the baffle. The baffle is set at an incline. The multiple baffles cover the bottom surface of the desiccant compartment, and there are gaps between adjacent baffles for gas to pass through. The outer edge of the baffle is connected to the inner side of the inner wall, and the inner wall is provided with water outlet holes at positions corresponding to the baffles. The water outlet holes correspond to the connection point between the water-blocking edge and the baffle.

[0015] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0016] This device adds rotating spiral blades at the front end of the desiccant. After the spiral blades collide with the moisture in the unrefined biomass natural gas, the moisture is adsorbed onto the filaments inside the spiral blades. As the spiral blades rotate, the moisture on the filaments moves outward and is thrown out. The moisture content inside the gas is greatly reduced after the spiral blades pre-dehydrate it. Then, it is dried by the desiccant, which can greatly extend the service life of the desiccant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of a helical blade.

[0019] Figure 3 This is a cross-sectional view of the helical blade.

[0020] Figure 4 This is a sectional view of the tank. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the following embodiments are only one or more manifestations of the present invention and are not a complete limitation on the invention content recorded in this application. Any improvements made based on the invention content or technical solution recorded in this application that are known to those skilled in the art should fall within the scope of protection claimed in this application.

[0022] Furthermore, the descriptions of directions such as up, down, left, right, front, and back presented in the specific embodiments are merely for the purpose of describing the technical solutions and are not absolute limitations unless otherwise stated.

[0023] like Figure 1 - Figure 4 The dehydration equipment for purifying biomass natural gas shown includes a tank 1 and a desiccant chamber 2 located inside the tank 1. The desiccant chamber 2 is located in the upper part of the tank 1 and is filled with desiccant. Rotating spiral blades 3 are provided in the lower part of the tank 1. The spiral blades 3 have a frame structure and transverse filaments 301 are provided in the frame of the spiral blades 3.

[0024] The tank body 1 is provided with an air inlet pipe 101 and a water outlet pipe 110 at the bottom, and an air outlet pipe 102 at the top of the tank body 1; a drive motor 103 is provided at the center of the top of the tank body 1, and a drive shaft 104 extending into the center of the tank body 1 is provided below the drive motor 103, and the drive shaft 104 drives the spiral blades 3.

[0025] The spiral blade 3 has a square frame structure, and multiple evenly distributed filaments 301 are provided inside the spiral blade 3. The filaments 301 are distributed laterally inside the spiral blade 3. The inner wall of the tank body 1 is provided with an L-shaped water receiving groove 105, which is located at the edge corresponding to the spiral blade 3.

[0026] Furthermore, a tubular inner wall 106 is provided on the inner wall of the tank body 1, and a space for water drainage is left between the inner wall 106 and the side wall of the tank body 1. The inner wall 106 and the side wall of the tank body 1 are connected by evenly distributed connecting plates 107; the water receiving trough 105 is provided on the inner wall 106.

[0027] The inner wall 106 corresponding to the bottom of the water receiving trough 105 is provided with a ring-shaped water outlet trough 108. The water outlet trough 108 is a through structure and connects the two sides of the inner wall 106.

[0028] The inner side of the outer end frame of the spiral blade 3 is provided with a notch 302, and a water flow hole 303 extending to the bottom of the frame is provided below the notch 302; the outer end of the wire 301 is connected to the bottom of the notch 302; the water flow hole 303 corresponds to the middle of the water receiving tank 105.

[0029] Furthermore, the spiral blades 3 are provided with multiple sets evenly distributed on the drive shaft 104, and the water receiving tank 105 and the water outlet tank 108 are provided with corresponding multiple sets.

[0030] The desiccant compartment 2 is provided with a grid plate 201 at the bottom to support the desiccant, and a water receiving tray 202 is provided at the bottom of the desiccant compartment 2.

[0031] Furthermore, the water receiving tray 202 is provided with multiple baffles 2021 evenly distributed in a ring. The bottom of the baffles 2021 is provided with a water-blocking edge 2022 perpendicular to the baffles 2021. The baffles 2021 are set in an inclined shape. The multiple baffles 2021 cover the bottom surface of the desiccant chamber 2, and there is a gap between adjacent baffles 2021 for gas to pass through. The outer edge of the baffles 2021 is connected to the inner side of the inner wall 106, and the inner wall 106 is provided with a water outlet 109 at a position corresponding to the baffles 2021. The water outlet 109 corresponds to the connection point of the water-blocking edge 2022 and the baffles 2021.

[0032] In use, biomass natural gas enters the tank from the bottom and first passes through rotating spiral blades. The gas contains a large amount of moisture, which is adsorbed onto the filaments inside the spiral blades after colliding with them. As the spiral blades rotate rapidly, the moisture moves along the filaments to the outer end and accumulates in the notch at the end of the spiral blade frame. With the rotation of the spiral blades, the water in the notch enters the water receiving tank through the water outlet. The water collected in the water receiving tank then enters the space between the inner wall and the side wall of the tank through the water outlet, and finally flows into the water outlet pipe at the bottom of the tank for discharge.

[0033] The moisture content of the gas is greatly reduced after passing through the spiral blade area. Then it passes through the desiccant area, which is a porous adsorbent material that absorbs the remaining moisture in the gas. During the process of the desiccant absorbing moisture, water may drip. The dripping water falls onto the baffle on the water receiving tray and then flows down to the water-blocking edge. It flows outward along the bend between the baffle and the water-blocking edge to the water outlet and enters the space between the inner wall and the side wall of the tank, and then falls to the bottom of the tank and is discharged.

Claims

1. A dehydration device for purifying biomass natural gas, characterized in that: It includes a tank and a desiccant compartment located inside the tank. The desiccant compartment is located in the upper part of the tank and is filled with desiccant. Rotating spiral blades are provided in the lower part of the tank. The spiral blades have a frame structure and transverse filaments are provided within the frame of the spiral blades.

2. The dehydration equipment for biomass natural gas purification according to claim 1, characterized in that: The tank has an air inlet pipe and a water outlet pipe at the bottom, and an air outlet pipe at the top. A drive motor is located at the center of the top of the tank, and a drive shaft extending into the center of the tank is located below the drive motor. The drive shaft drives the spiral blades.

3. The dehydration equipment for biomass natural gas purification according to claim 2, characterized in that: The spiral blade has a square frame structure, and multiple evenly distributed filaments are provided inside the spiral blade. The filaments are distributed laterally inside the spiral blade. An L-shaped water receiving groove is provided on the inner wall of the tank, and the water receiving groove is located at the edge corresponding to the spiral blade.

4. The dehydration equipment for biomass natural gas purification according to claim 3, characterized in that: The inner wall of the tank is provided with a tubular inner wall, and a space for water drainage is left between the inner wall and the side wall of the tank. The inner wall and the side wall of the tank are connected by evenly distributed connecting plates; the water receiving trough is provided on the inner wall.

5. The dehydration equipment for biomass natural gas purification according to claim 4, characterized in that: The inner wall corresponding to the bottom of the water receiving tank is provided with a ring-shaped water outlet groove, which is a through structure and connects the two sides of the inner wall.

6. The dehydration equipment for biomass natural gas purification according to claim 5, characterized in that: The outer end frame of the spiral blade is provided with a notch groove, and a water flow hole is provided below the notch groove, extending to the bottom of the frame; the outer end of the wire is connected to the bottom of the notch groove; the water flow hole corresponds to the middle of the water receiving groove.

7. A dehydration device for biomass natural gas purification according to claim 6, characterized in that: The spiral blades are provided in multiple sets evenly distributed on the drive shaft, and the water receiving tank and water outlet tank are provided in multiple sets accordingly.

8. The dehydration equipment for biomass natural gas purification according to claim 7, characterized in that: The desiccant compartment is equipped with a grid plate at the bottom to support the desiccant, and a water collection tray is provided at the bottom of the desiccant compartment.

9. A dehydration device for biomass natural gas purification according to claim 8, characterized in that: The water receiving tray is provided with multiple baffles evenly distributed in a ring. The bottom of the baffle is provided with a water-blocking edge perpendicular to the baffle. The baffles are set at an incline. The multiple baffles cover the bottom surface of the desiccant compartment, and there are gaps between adjacent baffles to allow gas to pass through. The outer edge of the baffle is connected to the inner side of the inner wall, and the inner wall is provided with water outlet holes at positions corresponding to the baffles. The water outlet holes correspond to the connection points of the water-blocking edge and the baffles.

Images