Civil biomass water heating stove
By using a fireproof plate, electric push rod, and temperature sensor combined with a PLC controller in the biomass furnace, the problems of backfire and flashback caused by direct connection between the furnace and the feed hopper were solved. This achieved safe isolation of the fuel chamber and temperature control, improving the safety of the furnace body.
Patent Information
- Application Number
- CN202423098939.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-16
AI Technical Summary
In existing biomass furnaces, the furnace chamber is directly connected to the feed hopper, which easily leads to problems such as backfire and flashback after use.
The design incorporates a fireproof board, an electric push rod, and a temperature sensor in conjunction with a PLC controller. The fireproof board isolates the furnace from the fuel chamber through a fireproof layer and the electric push rod. The temperature sensor monitors the temperature and activates the cooling coil to cool down the furnace and prevent backfire.
It effectively prevents backfire and flashback in the fuel chamber, improving the safety and reliability of the furnace.
Smart Images

Figure CN223726414U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a heating stove technical field relates to a civil biomass water heating stove. BACKGROUND
[0002] The biomass stove is the stove with biomass (such as crop straw, sawdust etc.) as fuel, and heat is generated by burning biomass, which is used for heating or cooking etc. In the prior art, the biomass stove comprises a furnace body and a hearth arranged in the furnace body, and the hearth is directly communicated with the feeding bin, and the problem of back burning and back heating is prone to occur after the furnace body is used, so a civil biomass water heating stove is urgently needed to solve the above problems. SUMMARY
[0003] In view of the above technical problems existing in the prior art, a civil biomass water heating stove is provided, which solves the problem of back burning and back heating due to the direct communication between the hearth and the feeding bin after the furnace body is used.
[0004] The purpose and effect of the utility model are achieved by the following specific technical means:
[0005] A civil biomass water heating stove comprises a furnace body, a hearth arranged in the furnace body, and a feeding port arranged on one side of the hearth.
[0006] A fireproof plate is arranged in the feeding port, and the fireproof plate comprises a fireproof layer arranged inside and outside and a metal plate, a cold air cavity is arranged in the inside of the metal plate, the cold air cavity is penetrated through the metal plate at the outside end, a refrigeration fin is arranged at the outside end of the cold air cavity, a temperature sensor is arranged in the inside of the cold air cavity, an electric push rod two is fixedly connected to the lower part of the outer wall of the fireproof plate.
[0007] A fuel chamber is arranged in the furnace body and located on one side of the hearth, two electric push rods one are fixedly arranged on the bottom of the inner wall of the fuel chamber, an inclined table is fixedly arranged at the output end of the two electric push rods one, and the low end of the inclined table is close to the hearth.
[0008] Optionally, the bottom of the inner wall of the feeding port and the top of the inclined table are combined into an inclined surface.
[0009] Optionally, a cooking cavity is arranged in the furnace body and located above the hearth, and two sealing covers are embedded in the top of the furnace body through openings, and the two sealing covers correspond to the cooking cavity and the fuel chamber respectively.
[0010] Optionally, a water cavity is arranged in one side of the furnace body and connected to the hearth, a water inlet pipe and a water outlet pipe are inserted into the outer wall of the furnace body and arranged in an up-down distribution, the water inlet pipe and the water outlet pipe are communicated with the water cavity, and a circulating pump is arranged at the outside end of the water outlet pipe.
[0011] Optionally, the furnace body is provided with a grate and an ash discharge chamber arranged in an up-down direction, and the grate and the ash discharge chamber are communicated with the furnace interior.
[0012] Optionally, a PLC controller is installed on the furnace body.
[0013] Compared with the prior art, the biomass water heating fire stove has the advantages that:
[0014] The biomass water heating fire stove is provided with three measures to prevent the fuel chamber from being back-burned and back-fired, namely, first, after fuel is added, an electric push rod II is started to drive the fireproof plate to close the feeding port, so that the furnace chamber and the fuel chamber are isolated, wherein the fireproof layer of the fireproof plate has a fireproof and heat insulation effect, and can prevent the fuel chamber from being back-burned and back-fired after the furnace body is used; second, two electric push rods I are started to drive the inclined table to move downwards, so as to prevent the remaining fuel or fuel powder on the inclined table from being back-burned due to back-fire; and third, when the temperature detected by the temperature sensor reaches a preset value, the PLC controller starts the refrigeration fin, the refrigeration fin absorbs heat in the cold air cavity, and the heat is discharged to the fuel chamber through the heat dissipation end of the refrigeration fin, so as to reduce the heat on the metal plate and at the feeding port, and prevent the fuel powder from being burned. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic view of the overall front cross-sectional structure of the utility model;
[0016] Figure 2 It is a schematic view of the overall front cross-sectional structure of the utility model; Figure 1 It is a schematic view of the structure of the inclined table rising to the feeding port;
[0017] Figure 3 It is a schematic view of the front cross-sectional structure of the fireproof plate of the utility model.
[0018] Marked in the figure: furnace body 1, furnace chamber 2, cooking cavity 3, sealing cover 4, fuel chamber 5, water cavity 6, grate 7, ash discharge chamber 8, water outlet pipe 9, circulating pump 10, water inlet pipe 11, electric push rod I 12, inclined table 13, fireproof plate 14, fireproof layer 141, metal plate 142, cold air cavity 1421, 1422, refrigeration fin 1423, temperature sensor 1424, electric push rod II 15, PLC controller 16, feeding port 17. DETAILED DESCRIPTION
[0019] Please refer to Figures 1-3 , the embodiment of the utility model is further described;
[0020] A civilian biomass water heating stove includes a stove body 1, a furnace chamber 2 inside the stove body 1, a feed inlet 17 on one side of the furnace chamber 2, a fuel chamber 5 located on one side of the furnace chamber 2 inside the stove body 1, a cooking chamber 3 located above the furnace chamber 2 inside the stove body 1, and two sealing covers 4 are fitted into the top of the stove body 1 through an opening, with the two sealing covers 4 corresponding to the cooking chamber 3 and the fuel chamber 5 respectively.
[0021] A fireproof plate 14 is installed inside the feed inlet 17. The fireproof plate 14 includes a fireproof layer 141 and a metal plate 142 arranged inside and outside. A cold air cavity 1421 is opened inside the metal plate 142. The outer end of the cold air cavity 1421 penetrates the metal plate 142, and a cooling chip 1423 is installed at the outer end of the cold air cavity 1421. A temperature sensor 1424 is installed inside the cold air cavity 1421. An electric push rod 15 is fixed outside the furnace chamber 2. The electric push rod 15 is fixedly connected to the lower part of the outer wall of the fireproof plate 14.
[0022] Two electric push rods 12 are fixed to the bottom of the inner wall of the fuel chamber 5. An inclined platform 13 is fixed to the output end of the two electric push rods 12. The lower end of the inclined platform 13 is close to the furnace 2. The bottom of the inner wall of the feed inlet 17 and the top of the inclined platform 13 are joined together to form an inclined surface.
[0023] A PLC controller 16 is installed on the furnace body 1;
[0024] In this solution, the PLC controller 16 is electrically connected to the electrical components inside the oven, enabling greater automation of the oven; in the initial state, such as Figure 1 As shown, the inclined platform 13 is located below the interior of the fuel chamber 5. In use, open the two sealing covers 4, then activate the two electric actuators 12 by clicking the PLC controller 16. The two electric actuators 12 will raise the inclined platform 13 to the feed inlet 17. Then close the two electric actuators 12. Figure 2 As shown, the inclined platform 13 at this time is not only convenient for feeding, but also close to the top of the fuel chamber 5, so the fuel is not easily scattered when feeding. Then, the fireproof plate 14 is opened by activating the electric push rod 2 15, and then the electric push rod 2 15 is closed. The fuel is put into the fuel chamber 5 and will fall on the inclined platform 13. Then the fuel rolls on the inclined platform 13 and passes through the feed port 17 into the furnace 2. Since the bottom of the inner wall of the feed port 17 and the top of the inclined platform 13 form an inclined surface, the fuel can be effectively prevented from staying on the inner wall of the feed port 17. After the fuel is added, the electric push rod 2 15 is activated again to drive the fireproof plate 14 to close the feed port 17, so that the furnace 2 and the fuel chamber 5 are isolated. The fireproof layer 141 of the fireproof plate 14 has fireproof and heat insulation functions, which can prevent backfire and flashback in the fuel chamber 5 after the furnace body 1 is used.
[0025] Then, activate the two electric push rods 12 to move the inclined platform 13 down, so as to prevent the remaining fuel or fuel powder on the inclined platform 13 from being burned back due to backfire.
[0026] In order to further prevent the occurrence of backfire and backfire in the fuel chamber 5, in combination with Figure 2 And 3 , the temperature value of the temperature sensor 1424 is preset by the PLC controller 16, which is set according to the ignition point of the fuel, for example, the ignition point of dry straw briquette is usually between 250-300℃, and the preset value of the temperature sensor 1424 can be set between 230-240℃, the fireproof layer 141 of the fireproof plate 14 can be heat insulated, the metal plate 142 can be steel plate, aluminum alloy plate, etc., when the inner wall of the feeding port 17 is adhered with fuel powder, it is very likely to be burned, because the metal plate 142 has good heat conduction effect, the heat generated after the fuel powder is burned will be quickly transferred to the metal plate 142, when the temperature measured by the temperature sensor 1424 reaches the preset value, the information will be transmitted to the PLC controller 16, and the PLC controller 16 will start the refrigerating fin 1423, which will absorb the heat in the cold air cavity 1421 and discharge the heat to the fuel chamber 5 through its heat dissipation end, so as to reduce the heat on the metal plate 142 and the feeding port 17, and prevent the fuel powder from being burned;
[0027] Finally, the fuel is ignited and burned, which will generate a large amount of heat, which can be used for heating or cooking.
[0028] The furnace body 1 is provided with a grate 7 and an ash discharge chamber 8 distributed in an up-down manner, both of which are communicated with the inside of the hearth 2; the grate 7 is provided to support the weight of the fuel and to ventilate through the gaps in its structure, ensuring sufficient oxygen supply inside the fuel to maintain combustion; most of the ash after the combustion of straw briquette will fall into the ash discharge chamber 8, which can be manually discharged by the staff later.
[0029] One side of the furnace body 1 is provided with a water cavity 6 connected with the hearth 2, and the outer wall of the furnace body 1 is inserted with an inlet water pipe 11 and an outlet water pipe 9 distributed in an up-down manner, both of which are communicated with the water cavity 6, and the outer end of the outlet water pipe 9 is provided with a circulating pump 10; the water cavity 6 stores water, the inlet water pipe 11 and the circulating pump 10 are connected with warm water pieces or floor heating through pipelines, forming a complete set of heating equipment; the heat generated by the fuel burning in the hearth 2 will diffuse into the water in the water cavity 6 to heat the water, and the heated water will be transported to the pipeline through the outlet water pipe 9 under the action of the circulating pump 10, and then enter the warm water pieces or floor heating to heat the room, and the cold water will re-enter the water cavity 6 through the inlet water pipe 11.
Claims
1. A civilian biomass water heating stove, comprising a stove body (1), wherein a stove hearth (2) is arranged inside the stove body (1), and a feeding port (17) is arranged on one side of the stove hearth (2), characterized in that: a fireproof plate (14) is arranged in the feeding port (17), wherein the fireproof plate (14) comprises an inner and outer fireproof layer (141) and a metal plate (142), a cold air cavity (1421) is arranged in the metal plate (142), the cold air cavity (1421) penetrates through the metal plate (142) at an outer end, a refrigeration fin (1423) is arranged at the outer end of the cold air cavity (1421), a temperature sensor (1424) is arranged in the cold air cavity (1421), and an electric push rod two (15) is fixedly connected to the lower outer wall of the fireproof plate (14); a fuel chamber (5) is arranged in the stove body (1) and located on one side of the stove hearth (2), two electric push rods one (12) are fixedly arranged on the inner wall bottom of the fuel chamber (5), and an inclined table (13) is fixedly arranged at the output ends of the two electric push rods one (12), wherein the inclined table (13) is close to the stove hearth (2) at a low end. An inclined surface is formed by the inner wall bottom of the feeding port (17) and the top of the inclined table (13).
2. A biomass water heating fire place according to claim 1, characterized in that: A cooking cavity (3) is arranged in the stove body (1) and located above the stove hearth (2), two sealing covers (4) are embedded on the top of the stove body (1) through openings, and the two sealing covers (4) correspond to the cooking cavity (3) and the fuel chamber (5) respectively.
3. The civilian biomass water heating fire stove according to claim 1, characterized in that: A water cavity (6) is arranged in one side of the stove body (1) and connected to the stove hearth (2), a water inlet pipe (11) and a water outlet pipe (9) are inserted into the outer wall of the stove body (1) and arranged in an up-down manner, the water inlet pipe (11) and the water outlet pipe (9) are communicated with the water cavity (6), and a circulating pump (10) is arranged at the outer end of the water outlet pipe (9).
4. The civilian biomass water heating fire stove according to claim 1, characterized in that: A grate (7) and an ash discharge chamber (8) are arranged in the stove body (1) and arranged in an up-down manner, and the grate (7) and the ash discharge chamber (8) are communicated with the inside of the stove hearth (2).
5. The civilian biomass water heating fire place according to claim 1, characterized in that: A PLC controller (16) is arranged on the stove body (1).
6. The civilian biomass water heating fire place according to claim 1, characterized in that: