Fuel weighing type stove combustion simulation experiment device

Abstract

The utility model discloses a fuel weighing type simulation stove combustion experiment device, which relates to the technical field of combustion experiment devices, and comprises a stove body and a deslagging sealing door, the side wall of the bottom of the stove body is communicated with an air blower, the side wall of the stove body is hinged with the deslagging sealing door, and a gas collecting component is arranged at an opening at the upper end of the stove body. An electronic scale is mounted on the lower surface of the furnace body; an ignition assembly is installed in a hearth of the furnace body, a combustion-supporting assembly is rotationally installed in the hearth of the furnace body, and the combustion-supporting assembly abuts against the inner wall of the hearth of the furnace body. A feeding hole is also formed in the side wall of the upper end of the furnace body; an insulating conduit is installed on the side wall of the furnace body, a wire penetrates through the insulating conduit, one end of the wire is electrically connected with the ignition assembly, and the other end of the wire is electrically connected with the power source. According to the fuel weighing type stove combustion simulation experiment device, the content of smoke can be conveniently and accurately measured, meanwhile, a large number of sensors are adopted for real-time monitoring and data collection, and data support is provided for environmental protection evaluation.

Description

Technical Field

[0001] This utility model relates to the technical field of combustion experimental devices, and in particular to a fuel weighing type simulated stove combustion experimental device. Background Technology

[0002] In remote rural areas, residential stoves are a common method of heating and cooking. The chemical composition, emission volume, and emission mechanisms of the exhaust gases from these stoves remain a hot research topic in the field of atmospheric environment. However, conducting on-site measurements of pollutant emissions from rural residential stoves may encounter problems such as the use of a single fuel and poor reproducibility of experimental results. Therefore, inventing a combustion experimental device that simulates the combustion process of rural residential stoves, while ensuring good reproducibility of experimental results, is of significant research value.

[0003] The key challenges in simulating the combustion of residential stoves in this experimental setup are: 1. How to accurately determine the change in fuel mass during each combustion cycle. Calculating pollutant emissions requires knowing the emission factor, i.e., the mass of pollutants emitted per kilogram of fuel. Therefore, real-time monitoring of fuel mass changes is crucial. 2. How to quickly ignite coal. Rural stoves use a variety of fuels; besides biomass, coal is commonly used in most remote areas. However, compared to biomass, coal is difficult to ignite. Using traditional straw ignition methods results in the flue gas collected from burning coal being mixed with flue gas from burning straw. Therefore, quickly and effectively igniting coal and recording real-time changes in coal fuel mass are critical issues in the simulated combustion experiment.

[0004] In summary, how to develop a fuel-weighted simulated stove combustion experimental device that can ignite coal and collect and record data in real time without affecting the flue gas content has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a fuel-weighted simulated stove combustion experimental device to solve the problems listed in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses a fuel weighing type simulated stove combustion experimental device, including a furnace body and a slag removal sealing door. The bottom side wall of the furnace body is connected to a blower, the side wall of the furnace body is hinged to the slag removal sealing door, a gas collection component is installed at the upper opening of the furnace body, and an electronic scale is installed on the lower surface of the furnace body.

[0008] An ignition assembly is installed inside the furnace chamber of the furnace body, and a combustion-supporting assembly is rotatably installed inside the furnace chamber of the furnace body, with the combustion-supporting assembly abutting against the inner wall of the furnace chamber of the furnace body.

[0009] A feed inlet is also installed on the upper side wall of the furnace body;

[0010] An insulating conduit is installed on the side wall of the furnace body. A wire is threaded through the inside of the insulating conduit. One end of the wire is electrically connected to the ignition assembly, and the other end of the wire is electrically connected to the power source.

[0011] Preferably, the bottom dimension of the inner wall of the furnace chamber is larger than the top dimension of the inner wall of the furnace chamber.

[0012] Preferably, the ignition assembly includes a receiving groove, which is equally spaced on the inner wall of the bottom of the furnace chamber of the furnace body. The opening of the receiving groove is inclined downward and flush with the inner wall of the bottom of the furnace chamber of the furnace body.

[0013] The interior of the receiving groove is equipped with electric heating wires.

[0014] Preferably, an air inlet is provided on the side wall of the furnace body, the air inlet is connected to the blower, and an insulated wire conduit is installed on the other side wall of the furnace body, the wire being electrically connected to the electric heating wire through the insulated wire conduit.

[0015] Preferably, the combustion-supporting component includes a chassis, the lower surface of which abuts against the bottom surface of the furnace chamber of the furnace body, and support plates are fixedly installed at equal intervals on the upper surface of the chassis, and an annular grate is installed on the upper surface of the support plates;

[0016] The outer ring of the annular grate is equipped with heat insulation plates at equal intervals, and the heat insulation plates abut against the receiving groove;

[0017] A conical cylinder is installed on the inner ring of the annular grate, and a through hole is provided on the side wall of the conical cylinder.

[0018] Preferably, the gas collection assembly includes a gas collection cover, which is sealed to the upper opening of the furnace body. The upper end of the gas collection cover is connected to the gas collection main pipe, and the upper opening of the gas collection main pipe is connected to a three-way valve. One opening of the three-way valve is connected to one end opening of the airless gas collection pipe, and the other opening of the three-way valve is connected to one end opening of the airy gas collection pipe.

[0019] The other end of the air-free collection pipe is connected to the air-free collector, and the other end of the air-collecting pipe is connected to the air-collector. Both the air-free collector and the air-collector are equipped with filter membranes.

[0020] Preferably, the gas collection main pipe is equipped with an anemometer and a gas analyzer.

[0021] Preferably, thermocouples are arranged on the side wall of the furnace body.

[0022] Preferably, it also includes a controller, which is electrically connected to the blower, the electronic scale, the thermocouple, the anemometer, the gas analyzer, and the three-way valve.

[0023] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0024] 1) The electric heating wires are arranged in the downward-sloping receiving tank, which makes it convenient for the electric heating wires to heat the coal from multiple points on the inner wall of the furnace. At the same time, the opening of the receiving tank can prevent the coal from contacting the electric heating wires, thus improving the service life of the electric heating wires. Furthermore, it can also reduce the adhesion of coal ash or slag in the receiving tank.

[0025] 2) The coal seam is divided into upper and lower sections along the conical cylinder, which makes it easier for the electric heating wires on the side wall of the furnace to fully heat the thinner coal seam at the bottom for ignition. On the one hand, it reduces the working time of the electric heating wires and reduces energy consumption. On the other hand, the bottom-up ignition method facilitates the rapid completion of the ignition operation. At the same time, the support plate adopts an interval design, which will not affect the air intake of the blower. It is easy to ensure combustion by air intake from the center of the coal seam through the conical cylinder.

[0026] In summary, this utility model discloses a fuel weighing simulated stove combustion experimental device. It uses a conical cylinder to divide the coal layer inside the furnace chamber into upper and lower layers, and uses electric heating wires to ignite the coal layer. The use of electric heating does not interfere with the content of flue gas produced by coal combustion during the ignition process, which facilitates accurate measurement of flue gas content. At the same time, a large number of sensors are used to monitor and collect data in real time, providing experimental personnel with detailed and accurate data support for environmental assessment. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a three-dimensional schematic diagram of a fuel weighing simulated stove combustion experimental device according to the present invention;

[0029] Figure 2 This is a three-dimensional cross-sectional view of the furnace body of this utility model;

[0030] Figure 3 This is a three-dimensional schematic diagram of the combustion-supporting component of this utility model;

[0031] Figure 4 This is a schematic diagram of the assembly of the furnace body and combustion-supporting components of this utility model.

[0032] Explanation of reference numerals in the attached drawings: 1. Furnace body; 2. Blower; 3. Slag removal sealing door; 4. Electronic scale; 5. Insulated conduit; 6. Feed inlet; 7. Gas collection cover; 8. Gas collection main pipe; 9. Air-supported gas collection pipe; 10. Three-way valve; 11. Airless gas collection pipe; 12. Air inlet; 13. Receiving trough; 14. Insulated conduit; 15. Conical cylinder; 16. Heat insulation plate; 17. Support plate; 18. Bottom plate; 19. Annular grate. Detailed Implementation

[0033] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0034] like Figure 1-4 As shown, a fuel weighing simulated stove combustion experimental device includes a furnace body 1 and a slag removal sealing door 3. The bottom side wall of the furnace body 1 is connected to a blower 2, and the side wall of the furnace body 1 is hinged to the slag removal sealing door 3. A gas collection assembly is installed at the upper opening of the furnace body 1, and an electronic scale 4 is installed on the lower surface of the furnace body 1. The electronic scale can measure the mass change of coal in real time from placement to burnout.

[0035] An ignition assembly is installed inside the furnace chamber of the furnace body 1, and a combustion aid assembly is rotatably installed inside the furnace chamber of the furnace body 1. The combustion aid assembly abuts against the inner wall of the furnace chamber of the furnace body 1, which can protect the ignition assembly and prevent the high temperature generated during the combustion process from affecting the combustion aid assembly.

[0036] A feed inlet 6 is also installed on the upper side wall of the furnace body 1, which facilitates the addition of coal into the furnace chamber through the feed inlet after the gas collection component is sealed and installed with the furnace body.

[0037] An insulating conduit 5 is installed on the side wall of the furnace body 1. A wire is threaded through the inside of the insulating conduit 5. One end of the wire is electrically connected to the ignition component, and the other end of the wire is electrically connected to the power supply. The experimenter can rotate the combustion-supporting component through the slag removal and sealing door to protect the ignition component after the ignition operation is completed.

[0038] Specifically, the bottom dimension of the inner wall of the furnace chamber of the furnace body 1 is larger than the top dimension of the inner wall of the furnace chamber of the furnace body 1, and the furnace chamber of the furnace body adopts a variable diameter treatment to facilitate the collection of flue gas generated by coal.

[0039] Specifically, the ignition assembly includes a receiving groove 13, which is equally spaced on the inner wall of the bottom of the furnace chamber of the furnace body 1. The opening of the receiving groove 13 is inclined downward and flush with the inner wall of the bottom of the furnace chamber of the furnace body 1.

[0040] The interior of the receiving groove 13 is equipped with electric heating wires;

[0041] Furthermore, there are four receiving troughs, with equal spacing between each trough. Electric heating wires are arranged in the troughs with downward-sloping openings, which facilitates heating of the coal from multiple points on the inner wall of the furnace. At the same time, the openings of the receiving troughs prevent coal from coming into contact with the electric heating wires, thus improving the service life of the electric heating wires. In addition, it also reduces the adhesion of coal ash or slag in the receiving troughs.

[0042] Specifically, an insulated conduit 14 is installed on the other side wall of the furnace body 1, and the conduit is electrically connected to the electric heating wire through the insulated conduit 14.

[0043] Specifically, the combustion-supporting component includes a base plate 18, the lower surface of which abuts against the bottom surface of the furnace chamber of the furnace body 1, and support plates 17 are fixedly installed at equal intervals on the upper surface of the base plate 18. An annular grate 19 is installed on the upper surface of the support plate 17.

[0044] Heat insulation plates 16 are installed at equal intervals on the outer ring of the annular grate 19, and the heat insulation plates 16 abut against the receiving groove 13.

[0045] A conical cylinder 15 is installed on the inner ring of the annular grate 19. Through holes are opened on the side wall of the conical cylinder 15. The coal layer is divided into upper and lower sections along the conical cylinder, which makes it easier for the electric heating wires on the side wall of the furnace to fully heat the thinner coal layer at the bottom for ignition. On the one hand, it reduces the working time of the electric heating wires and reduces energy consumption, and on the other hand, the bottom-up ignition method facilitates the rapid completion of the ignition operation.

[0046] An air inlet 12 is provided on the side wall of the furnace body 1. The air inlet 12 is connected to the blower 2. An anemometer is installed in the air inlet 12 to measure the air volume. The air inlet is also connected to a conical cylinder to facilitate air intake from the center of the coal seam through the conical cylinder to ensure combustion.

[0047] Meanwhile, the support plate adopts a spaced design, which will not affect the air intake of the blower;

[0048] The base plate can collect and support the generated coal slag and ash, making it easy for experimental personnel to clean through the slag removal and sealing door;

[0049] Furthermore, the introduction of the blower increased the variables in the experiment, ensuring its accuracy.

[0050] Specifically, the gas collection assembly includes a gas collection cover 7, which is sealed to the upper opening of the furnace body 1. The upper end of the gas collection cover 7 is connected to the gas collection main pipe 8, and the upper opening of the gas collection main pipe 8 is connected to a three-way valve 10. One opening of the three-way valve 10 is connected to one end opening of the windless gas collection pipe 11, and the other opening of the three-way valve 10 is connected to one end opening of the air-supported gas collection pipe 9. The three-way valve can control the flow direction of the flue gas, making it convenient for experimental personnel to collect the flue gas generated by combustion under different air supply conditions separately.

[0051] The other end of the windless gas collection pipe 11 is connected to the windless state collector, and the other end of the windy gas collection pipe 9 is connected to the windy state collector. Both the windless state collector and the windy state collector are equipped with filter membranes. The filter membranes can collect particulate matter in the flue gas and measure the emission amount of particulate matter by weighing.

[0052] Specifically, the gas collection main pipe 8 is equipped with an anemometer and a gas analyzer, which can analyze CO and NO. X The concentration of gases is monitored in real time, and the anemometer inside the gas collection pipe can measure the amount of flue gas after combustion, making it easy to compare with the data measured at the air inlet.

[0053] Specifically, thermocouples are arranged on the side wall of the furnace body 1 for real-time temperature measurement.

[0054] Specifically, it also includes a controller, which is electrically connected to the blower 2, the electronic scale 4, the thermocouple, the anemometer, the gas analyzer, and the three-way valve 10. The controller is also electrically connected to a computer, which facilitates real-time control of the experimental device and data collection, making it easier for researchers to create temperature distribution maps, emission data tables, etc., and providing detailed and accurate data support for environmental assessment.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0056] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fuel weighing type simulation stove combustion experiment device, comprising a stove body (1) and a slag removal sealing door (3), the bottom side wall of the stove body (1) is communicated with a blower (2), and the side wall of the stove body (1) is hinged with the slag removal sealing door (3), characterized in that: A gas collecting assembly is mounted on the upper end opening of the furnace body (1), and an electronic scale (4) is mounted on the lower surface of the furnace body (1); A ignition assembly is mounted in the hearth of the furnace body (1), and a combustion-supporting assembly is rotatably mounted in the hearth of the furnace body (1) and abuts against the inner wall of the hearth of the furnace body (1); A feeding port (6) is further mounted on the upper end side wall of the furnace body (1); An insulating conduit (5) is mounted on the side wall of the furnace body (1), a wire is arranged in the insulating conduit (5), one end of the wire is electrically connected with the ignition assembly, and the other end of the wire is electrically connected with a power source.

2. The fuel-balance type simulated stove combustion test device according to claim 1, characterized in that: The size of the bottom of the inner wall of the hearth of the furnace body (1) is greater than the size of the top of the inner wall of the hearth of the furnace body (1).

3. The fuel-balance type simulated stove combustion test apparatus according to claim 2, characterized by: The ignition assembly comprises accommodating grooves (13) which are arranged at equal intervals on the inner wall of the hearth bottom of the furnace body (1), the openings of the accommodating grooves (13) are inclined downward, and the openings of the accommodating grooves (13) are flush with the inner wall of the hearth bottom of the furnace body (1); Electric heating wires are arranged in the accommodating grooves (13).

4. The fuel-balance type simulated stove combustion test apparatus according to claim 3, characterized by: An air inlet (12) is formed in the side wall of the furnace body (1), the air inlet (12) is communicated with the air blower (2), an insulating wire conduit (14) is mounted on the other end side wall of the furnace body (1), and the wire is electrically connected with the electric heating wires through the insulating wire conduit (14).

5. The fuel-balance type simulated stove combustion test apparatus according to claim 4, characterized by: The combustion-supporting assembly comprises a bottom plate (18) which abuts against the hearth bottom surface of the furnace body (1), and support plates (17) are fixedly mounted at equal intervals on the upper surface of the bottom plate (18), and an annular furnace grate (19) is mounted on the upper surface of the support plates (17); Heat insulation plates (16) are mounted at equal intervals on the outer ring of the annular furnace grate (19) and abut against the accommodating grooves (13); A conical cylinder (15) is mounted on the inner ring of the annular furnace grate (19), and through holes are formed in the side wall of the conical cylinder (15).

6. The fuel balance type simulated stove combustion test device according to claim 5, characterized in that: The gas collecting assembly comprises a gas collecting cover (7) which is sealingly connected with the upper end opening of the furnace body (1), the upper end of the gas collecting cover (7) is communicated with a gas collecting main pipe (8), the upper end opening of the gas collecting main pipe (8) is communicated with a three-way valve (10), one of the openings of the three-way valve (10) is communicated with one end opening of a windless gas collecting pipe (11), and the other opening of the three-way valve (10) is communicated with one end opening of a windy gas collecting pipe (9); The other end opening of the windless gas collecting pipe (11) is communicated with a windless state collector, the other end opening of the windy gas collecting pipe (9) is communicated with a windy state collector, and filter membranes are mounted in the windless state collector and the windy state collector.

7. The fuel-balance type simulated stove combustion test apparatus according to claim 6, characterized by: An anemometer and a gas analyzer are mounted in the gas collecting main pipe (8).

8. The fuel balance type simulated stove combustion test device according to claim 7, characterized in that: A thermocouple is arranged on the side wall of the furnace body (1).

9. A fuel-balance type simulated stove combustion test apparatus according to claim 8, characterized in that: A controller is further provided and is electrically connected with the air blower (2), the electronic scale (4), the thermocouple, the anemometer, the gas analyzer and the three-way valve (10).

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