A biomass co-firing experimental device

Abstract

This utility model discloses a biomass co-firing experimental device, comprising: a mixing section disposed on one side of a combustion section for mixing biomass fuel and pulverized coal; an adjusting section disposed on the side of the mixing section away from the combustion section for controlling the ratio of biomass fuel and pulverized coal passing through the mixing section; a detection section disposed on the top of the combustion section for detecting the heat generated by combustion; and a control section disposed on the top of the mixing section. The control section is electrically connected to the combustion section, mixing section, adjusting section, and detection section. The control section controls the ratio of biomass fuel and pulverized coal passing through the adjusting section. The adjusting section includes a first pipe, a second pipe, a valve body, and a first drive section. The first drive section drives the valve body to control the opening and closing of the first and second pipes. A valve body is provided inside both the first and second pipes. This utility model enables experiments on the heat generated by mixing biomass fuel and pulverized coal in different proportions.

Description

Technical Field

[0001] This utility model relates to the field of biomass co-firing technology, and in particular to a biomass co-firing experimental device. Background Technology

[0002] Biomass co-firing is a combustion process that uses both biomass fuel and fossil fuel as boiler fuel. Biomass co-firing related to pulverized coal boilers is divided into direct co-firing, indirect co-firing, and parallel co-firing. It is highly efficient and, when combined with coal-fired power plants, can replace fossil fuels and promote pollutant emission reduction.

[0003] Currently, the biomass co-firing experimental equipment, through the design of the main furnace components, facilitates the feeding of pulverized coal and biomass and the discharge of combustion exhaust gas. By designing rectifiers, stainless steel shells, and asbestos, the secondary air entering the furnace can be made more uniform, ensuring stable gas flow inside the furnace and guaranteeing the furnace's heating and heat preservation effects. However, the following shortcomings still exist: the biomass co-firing equipment lacks research on the different heat generated by mixing biomass fuel with pulverized coal in different proportions. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a biomass co-firing experimental device to conduct experiments on the heat generated by mixing biomass fuel with pulverized coal in different proportions.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a biomass co-firing experimental device, comprising: A mixing section, located on one side of the combustion section, is used to mix biomass fuel with pulverized coal; The regulating section is located on the side of the mixing section away from the combustion section, and is used to control the ratio of biomass fuel and pulverized coal passing through the mixing section; The detection unit, located at the top of the combustion section, is used to detect the heat generated by combustion; The control unit is located on top of the mixing unit. The control unit is electrically connected to the combustion unit, mixing unit, regulating unit, and detection unit. The control unit is used to control the ratio of biomass fuel to pulverized coal in the regulating unit.

[0006] Furthermore, the regulating unit includes a first pipe, a second pipe, a valve body, and a first driving unit, wherein the first driving unit is used to drive the valve body to control the opening and closing of the first pipe and the second pipe; Both the first pipe and the second pipe are equipped with valve bodies.

[0007] Furthermore, the first drive unit includes a connecting rod disposed on the valve body, and the connecting rod is provided with a driven gear; It also includes a drive component mounted on the connecting rod, wherein the output shaft of the drive component is provided with a driving gear that drives the driven gear to rotate.

[0008] Furthermore, the regulating unit also includes a first ball valve disposed in the first pipe and a second ball valve disposed in the second pipe, wherein the first ball valve and the second ball valve are opened alternately; It also includes a connecting rod disposed between the first ball valve and the second ball valve, the connecting rod being provided with a drive source for driving the first ball valve and the second ball valve to open.

[0009] Furthermore, the regulating unit also includes a plurality of guide rings disposed in the first pipe and the second pipe, the guide rings being disposed on both sides of the valve body, and the guide rings being disposed on both sides of the first ball and the second ball valve.

[0010] Furthermore, the mixing section includes a mixing tank disposed at the ends of the first pipe and the second pipe, the mixing tank being provided with a drive unit, and the output shaft of the drive unit being provided with a stirring rod extending into the mixing tank; It also includes a conduit installed on the combustion chamber to connect the mixing tank and the combustion chamber.

[0011] Furthermore, the detection unit is an automatic heat detection instrument used to collect and detect the heat generated by the combustion of biomass fuel and pulverized coal.

[0012] The beneficial effects of this utility model are reflected in: This invention involves adding biomass fuel and pulverized coal through a first pipe and a second pipe, respectively. A control unit activates a drive mechanism, which in turn opens valves within the first and second pipes. A drive source rotates a first ball valve and a second ball valve, which open alternately. When the first ball valve is fully open, the second ball valve is fully closed. When both valves are rotated simultaneously, the opening ratio of the first ball valve corresponds to the closing ratio of the second ball valve, thus controlling the proportion of biomass fuel and pulverized coal entering the mixing tank. A drive unit then drives a stirring rod to mix the biomass fuel and pulverized coal in the mixing tank. The mixture is then fed into the combustion unit via a conduit. The control unit controls a detection unit to detect the heat generated by the combustion of different proportions of biomass fuel and pulverized coal, enabling experiments on the heat generated by mixing different proportions of biomass fuel and pulverized coal. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the adjustment part of this utility model; Figure 3 This is a partial cross-sectional view of the adjustment part of this utility model; Figure 4 This is a perspective view of the hybrid part of this utility model; Figure 5This is a three-dimensional sectional view of the hybrid part of this utility model.

[0014] In the picture: 1. Combustion section; 2. Mixing section; 21. Mixing tank; 22. Drive unit; 23. Guide tube; 24. Stirring rod; 3. Adjustment unit; 31. First pipe; 32. Second pipe; 33. Valve body; 34. Connecting rod; 35. Drive component; 36. First ball valve; 37. Second ball valve; 38. Connecting rod; 39. Drive source; 310. Guide ring; 4. Control Unit; 5. Testing Department. 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0016] Please see Figure 1-5 This utility model discloses a biomass co-firing experimental device, comprising: The mixing section 2 is fixedly installed on one side of the combustion section 1 to mix biomass fuel and pulverized coal. The mixing section 2 and the combustion section 1 are fixedly installed by flange and bolts. The mixing section 2 provides the combustion section 1 with fully mixed fuel, which helps the combustion section 1 to burn. The regulating unit 3 is fixedly installed on the side of the mixing unit 2 away from the combustion unit 1. It is used to control the ratio of biomass fuel and coal powder passing through the mixing unit 2. The regulating unit 3 is fixedly installed to the mixing unit 2 by flange and bolts. The regulating unit 3 controls the ratio of biomass fuel and coal powder passing through, which is beneficial to detect the heat generated at different ratios and detect the optimal heat ratio of combustion. The detection unit 5 is fixedly installed on the top of the combustion unit 1 to detect the heat generated by combustion. The detection unit 5 is used to measure the heat released by the combustion or reaction of coal and biomass in order to detect the optimal combustion ratio. The control unit 4 is located on top of the mixing unit 2. The control unit 4 is electrically connected to the combustion unit 1, the mixing unit 2, the regulating unit 3, and the detection unit 5. The control unit 4 is used to control the ratio of biomass fuel to coal powder in the regulating unit 3. The control unit 4 is equipped with a sensor and a controller. The control unit 4 is also equipped with a detection structure for displaying the detection unit 5.

[0017] In a specific embodiment, the regulating unit 3 includes a first pipe 31, a second pipe 32, a valve body 33, and a first driving unit. The first driving unit is used to drive the valve body 33 to control the opening and closing of the first pipe 31 and the second pipe 32. The first pipe 31 and the second pipe 32 are arranged in parallel. The first pipe 31 and the second pipe are used to transport biomass and coal powder into the mixing unit 2 by wind power. Both the first pipe 31 and the second pipe 32 are equipped with valve bodies 33. The valve bodies 33 are rotatably installed in the first pipe 31 and the second pipe 32 to simultaneously control the opening and closing of the first pipe 31 and the second pipe 32.

[0018] In one embodiment, the first driving unit includes a connecting rod 34 disposed on the valve body 33, the connecting rod 34 is provided with a driven gear, the connecting rod 34 is fixedly disposed with the two valve bodies 33, and the connecting rod 34 is used to drive the two valve bodies 33 to rotate simultaneously, thereby controlling the valve bodies 33 to open and close simultaneously. It also includes a drive unit 35 mounted on the connecting rod 34. The output shaft of the drive unit 35 is equipped with a drive gear that drives the driven gear to rotate. The drive unit 35 is a servo motor, which is used to precisely control the rotation of the valve body 33. The servo motor is used to drive the drive gear and the driven gear to rotate. Both the drive gear and the driven gear are 45-degree helical gears. The servo motor is equipped with a bracket for support and installation on the first pipe 31 and the second pipe 32.

[0019] In a specific embodiment, the regulating unit 3 further includes a first ball valve 36 disposed in the first pipe 31 and a second ball valve 37 disposed in the second pipe 32. The first ball valve 36 and the second ball valve 37 are opened alternately. The first ball valve 36 is rotatably disposed in the first pipe 31 and the second ball valve 37 is rotatably disposed in the second pipe 32. When the first ball valve 36 is completely closed in the first pipe 31, the second ball valve 37 is completely open in the second pipe 32. It also includes a connecting rod 38 disposed between the first ball valve 36 and the second ball valve 37. The connecting rod 38 is provided with a drive source 39 for driving the first ball valve 36 and the second ball valve 37 to open. The drive source 39 is a servo motor. The connecting rod 38 is fixedly installed with the first ball valve 36 and the second ball valve 37 by flanges and bolts. The drive source 39 is used to drive the connecting rod 38, the first ball valve 36 and the second ball valve 37 to rotate simultaneously. When the first ball valve 36 rotates to open, the second ball valve 37 rotates to close. The opening angle of the first ball valve 36 is the closing angle of the second ball valve 37. This controls the ratio of biomass fuel passing through the first pipe 31 and pulverized coal passing through the second pipe 32, which is beneficial for detecting the heat generated by combustion under different ratios and obtaining the optimal blending ratio.

[0020] In one embodiment, the regulating unit 3 further includes a plurality of guide rings 310 disposed in the first pipe 31 and the second pipe 32. The guide rings 310 are respectively disposed on both sides of the valve body 33, and on both sides of the first ball 36 and the second ball valve 37. The guide rings 310 are fixedly installed on the inner walls of the first pipe 31 and the second pipe 32. The inside of the guide rings 310 is a frustum-shaped cavity to prevent biomass fuel and coal powder from clogging one side of the valve body 36, the first ball valve 36 and the second ball valve 37.

[0021] In a specific embodiment, the mixing unit 2 includes a mixing tank 21 disposed at the ends of the first pipe 31 and the second pipe 32. The mixing tank 21 is provided with a drive unit 22, which is an electric motor. The drive unit 22 is used to drive the stirring rod 24 to mix the biomass fuel and coal powder in the mixing tank 21. The output shaft of the drive unit 22 is provided with a stirring rod 24 extending into the mixing tank 21. It also includes a conduit 23 installed on the combustion section 1 to connect the mixing tank 21 and the combustion section 1. The conduit 23 is used to transport the mixed biomass fuel and coal powder into the combustion section 1. One end of the conduit 23 is fixedly installed to the mixing tank 21 by a flange and bolts, and the other end of the conduit 23 is fixedly installed to the combustion section 1 by welding or a flange.

[0022] In one embodiment, the detection unit 5 is an automatic heat detection instrument used to collect and detect the heat generated by the combustion of biomass fuel and pulverized coal. This helps to display the heat generated by the combustion of biomass fuel and pulverized coal in different proportions, monitor the boiler combustion efficiency in real time, detect abnormal heat flow on the surface of industrial equipment, and prevent fires or energy losses.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] Additionally, "multiple" refers to two or more.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 biomass co-firing experimental device, characterized in that, include: A mixing section (2) is provided on one side of the combustion section (1) for mixing biomass fuel and pulverized coal; The regulating section (3) is located on the side of the mixing section (2) away from the combustion section (1) to control the ratio of biomass fuel and pulverized coal passing through the mixing section (2); The detection unit (5) is located on the top of the combustion unit (1) and is used to detect the heat generated by combustion. The control unit (4) is located on top of the mixing unit (2). The control unit (4) is electrically connected to the combustion unit (1), the mixing unit (2), the adjustment unit (3), and the detection unit (5). The control unit (4) is used to control the adjustment unit (3) by adjusting the ratio of biomass fuel to coal powder.

2. The biomass blending combustion test apparatus according to claim 1, wherein: The regulating part (3) includes a first pipe (31), a second pipe (32), a valve body (33) and a first driving part. The first driving part is used to drive the valve body (33) to control the opening and closing of the first pipe (31) and the second pipe (32). Both the first pipe (31) and the second pipe (32) are equipped with valve bodies (33).

3. The biomass co-firing experimental equipment according to claim 2, characterized in that: The first drive unit includes a connecting rod (34) disposed on the valve body (33), and the connecting rod (34) is provided with a driven gear; It also includes a drive member (35) disposed on the connecting rod (34), the output shaft of which is provided with a drive gear that drives the driven gear to rotate.

4. The biomass co-firing experimental equipment according to claim 3, characterized in that: The regulating unit (3) further includes a first ball valve (36) disposed in the first pipe (31) and a second ball valve (37) disposed in the second pipe (32), wherein the first ball valve (36) and the second ball valve (37) are opened alternately; It also includes a connecting rod (38) disposed between the first ball valve (36) and the second ball valve (37), and the connecting rod (38) is provided with a drive source (39) for driving the first ball valve (36) and the second ball valve (37) to open.

5. The biomass co-firing experimental equipment according to claim 4, characterized in that: The regulating part (3) also includes a plurality of guide rings (310) disposed in the first pipe (31) and the second pipe (32). The guide rings (310) are respectively disposed on both sides of the valve body (33) and on both sides of the first ball (36) and the second ball valve (37).

6. The biomass co-firing experimental equipment according to claim 2, characterized in that: The mixing section (2) includes a mixing tank (21) disposed at the ends of the first pipe (31) and the second pipe (32), and a driving unit (22) is provided on the mixing tank (21). The output shaft of the driving unit (22) is provided with a stirring rod (24) extending into the mixing tank (21). It also includes a conduit (23) provided on the combustion section (1) for connecting the mixing tank (21) and the combustion section (1).

7. The biomass co-firing experimental equipment according to claim 1, characterized in that: The detection unit (5) is an automatic heat detection instrument used to collect and detect the heat generated by the combustion of biomass fuel and pulverized coal.

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