Biomass gasification heat supply system capable of simultaneously supplying steam and heat conduction oil

Abstract

The utility model discloses a biomass gasification heat supply system capable of simultaneously supplying steam and heat conduction oil. A biomass gasification furnace assembly is provided with an outward-discharging biomass gas pipe; the biomass gas heat conduction oil boiler provides heat energy for the outside through a heat conduction oil pipeline, a smoke exhaust pipeline of the biomass gas heat conduction oil boiler is provided with the waste heat steam boiler, and the waste heat steam boiler provides steam heat energy for the outside through smoke waste heat. The biomass gas steam boiler provides heat energy for the outside through a steam pipeline, the biomass gas conduction oil boiler and the biomass gas steam boiler are connected with a biomass gas pipe through a gas pipeline, and a three-way valve for controlling the gas receiving state of the biomass gas conduction oil boiler and the biomass gas steam boiler is arranged on the gas pipeline; the deoxygenated water device is used for generating deoxygenated water and is respectively connected with the waste heat steam boiler and the biomass gas steam boiler through deoxygenated water pipelines. The device is high in flexibility, stable, reliable and capable of providing heat conduction oil and steam as required.

Description

Technical Field

[0001] This utility model belongs to the field of biomass energy utilization technology, specifically relating to a biomass gasification heating system that simultaneously supplies steam and heat transfer oil. Background Technology

[0002] In today's energy utilization system, heating demand is showing a diversified trend. Steam and thermal oil, as two important heat energy carriers, are widely used in industrial production and daily life. However, most existing heating systems primarily supply either steam or thermal oil, making it difficult to flexibly adapt to the diverse needs of different users. Furthermore, traditional heating systems suffer from low energy efficiency, lacking flexibility and adaptability in energy supply, failing to fully utilize the advantages of biomass energy, and thus struggling to meet diverse heating demands. In addition, the use of traditional energy sources also causes numerous environmental pollution problems.

[0003] Therefore, how to provide a heating system that uses clean energy combustion for heating is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the present invention provides a biomass gasification heating system that simultaneously supplies steam and thermal oil. It uses biomass raw materials to produce biomass gas, which is efficient and clean as fuel. The system supplies heat to thermal oil boilers and steam boilers through the combustion of biomass gas. The system has flexible heating capacity and can provide heating according to customer needs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a biomass gasification heating system that simultaneously supplies steam and heat transfer oil, comprising: a biomass gasification furnace assembly, wherein the biomass gasification furnace assembly is provided with an externally discharged biomass gas pipe;

[0006] A biomass-fired thermal oil boiler provides heat energy to the outside through thermal oil pipelines. A waste heat steam boiler is installed on the flue gas exhaust pipe of the biomass-fired thermal oil boiler, and the waste heat steam boiler uses the waste heat of flue gas to provide steam heat energy to the outside.

[0007] A biomass gas-fired steam boiler provides heat energy to the outside through a steam pipeline. The biomass gas-fired thermal oil boiler and the biomass gas-fired steam boiler are connected to the biomass gas pipeline through a gas pipeline. A three-way valve is provided on the gas pipeline to control the gas receiving status of the biomass gas-fired thermal oil boiler and the biomass gas-fired steam boiler.

[0008] The deoxygenated water device generates deoxygenated water and connects it to the waste heat steam boiler and the biomass gas steam boiler via deoxygenated water pipelines. The deoxygenated water device provides steam water source for the waste heat steam boiler and the biomass gas steam boiler.

[0009] The beneficial effects of this utility model are as follows: The biomass gasification furnace assembly is used to generate and output biomass gas. The raw material for biomass gas comes from biomass raw materials, which is clean and environmentally friendly. The biomass gas is then used as a clean energy source to supply biomass gas thermal oil boilers and biomass gas steam boilers. The biomass gas thermal oil boiler uses thermal oil to provide heat energy, and the biomass gas steam boiler uses steam to provide heat energy to the outside. Multiple heating modes can flexibly adapt to the needs of different users. This product can make full use of the waste heat of flue gas to provide steam heat energy, improve energy efficiency, maximize the use of biomass energy, and improve energy conversion efficiency. Based on the actual needs of users, this product can adjust the supply ratio of thermal oil and steam through a three-way valve to meet the diverse heat energy needs of different users.

[0010] Preferably, the gas pipeline is equipped with an induced draft fan for conveying biomass gas, and the induced draft fan is located upstream of the gas pipeline near the three-way valve.

[0011] The resulting technical effect is that the induced draft fan can transport biomass gas downstream of the pipeline, and the three-way valve is a control component that controls the gas received by the biomass gas thermal oil boiler and the biomass gas steam boiler, and can control the gas supply as needed.

[0012] Preferably, the heat transfer oil pipeline includes a return oil pipeline and an outlet oil pipeline, and a circulating oil pump for pumping oil is connected to the return oil pipeline.

[0013] The resulting technical effect is that the oil outlet and return lines can supply heat to the heat transfer oil, and the circulating oil pump can ensure the circulating heat exchange process of the heat transfer oil.

[0014] Preferably, an air preheater is provided on the flue gas duct of the biomass gas-fired thermal oil boiler. The air preheater is located downstream of the flue gas duct near the waste heat steam boiler and preheats the air entering the burner.

[0015] The resulting technical effect is that the air preheater can make full use of the residual heat on the flue gas, preheat the air entering the burner, and also preheat the combustion air entering the biomass gas thermal oil boiler and the biomass gas steam boiler.

[0016] Preferably, an economizer is connected to the flue gas pipe of the biomass gas-fired steam boiler, a diversion pipe for heat exchange is provided on the deoxygenated water pipeline entering the biomass gas-fired steam boiler, and a deoxygenated water pump is connected to the deoxygenated water pipeline near the deoxygenated water device.

[0017] The resulting technical effect is that the economizer can utilize the waste heat of flue gas in the exhaust pipe of the steam boiler to further heat the deoxygenated water, making full use of energy heat.

[0018] Preferably, the drainage pipe includes an inlet drainage pipe that enters the economizer and an outlet drainage pipe that exits the economizer, and a gate valve is connected to the deoxygenated water pipeline between the inlet drainage pipe and the outlet drainage pipe.

[0019] The resulting technical effect is that the gate valve can control the flow rate of deoxygenated water entering the economizer.

[0020] Preferably, the flue gas duct of the biomass gas-fired thermal oil boiler and the flue gas duct of the biomass gas-fired steam boiler converge to an external chimney.

[0021] The resulting technical effect is that the flue gas flows together and is discharged through the chimney, which facilitates the system's pipeline layout and subsequent flue gas treatment. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of a biomass gasification heating system that simultaneously supplies steam and heat transfer oil according to this utility model.

[0023] 1 Biomass gasification furnace assembly, 2 Biomass gas-fired thermal oil boiler, 3 Thermal oil pipeline, 31 Return oil pipeline, 32 Oil outlet pipeline, 4 Waste heat steam boiler, 5 Biomass gas-fired steam boiler, 6 Steam pipeline, 7 Gas pipeline, 8 Three-way valve, 9 Deoxygenated water device, 10 Deoxygenated water pipeline, 11 Exhaust fan, 12 Air preheater, 13 Economizer, 14 Drainage pipe, 15 Gate valve, 16 Chimney, 17 Circulating oil pump, 18 Deoxygenated water pump. Detailed Implementation

[0024] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] See appendix to this utility model Figure 1According to an embodiment of the present invention, a biomass gasification heating system that simultaneously supplies steam and heat transfer oil includes: a biomass gasifier assembly 1, which is provided with an external biomass gas pipe; clean biomass gas is generated using biomass raw materials as fuel source for subsequent combustion.

[0026] The biomass gas-fired thermal oil boiler 2 provides heat energy to the outside through the thermal oil pipeline 3. The exhaust pipe of the biomass gas-fired thermal oil boiler 2 is equipped with a waste heat steam boiler 4, which uses the waste heat of the flue gas to provide steam heat energy to the outside, further utilizing the energy heat.

[0027] The biomass gas-fired steam boiler 5 provides heat energy to the outside through the steam pipeline 6. The biomass gas-fired thermal oil boiler 2 and the biomass gas-fired steam boiler 5 are connected to the biomass gas pipeline through the gas pipeline 7. The gas pipeline 7 is equipped with a three-way valve 8 to control the gas receiving status of the biomass gas-fired thermal oil boiler 2 and the biomass gas-fired steam boiler 5. The ratio of thermal oil heating and steam heating can be adjusted according to the actual needs of the user, thereby improving the versatility and flexibility of the device.

[0028] The deoxygenated water device 9 generates deoxygenated water and connects to the waste heat steam boiler 4 and the biomass gas-fired steam boiler 5 respectively through the deoxygenated water pipeline 10. The deoxygenated water device 9 provides steam water source for the waste heat steam boiler 4 and the biomass gas-fired steam boiler 5.

[0029] In other embodiments, the gas pipeline 7 is equipped with an induced draft fan 11 for conveying biomass gas, and the induced draft fan 11 is located upstream of the gas pipeline near the three-way valve 8. This allows for overall control of the biomass gas delivery.

[0030] The induced draft fan is a biomass gas induced draft fan, and the three-way valve is a biomass gas three-way valve.

[0031] In some other specific embodiments, the heat transfer oil pipeline 3 includes a return oil pipeline 31 and an outlet oil pipeline 32. A circulating oil pump 17 for pumping oil is connected to the return oil pipeline 31. The return oil pipeline and the outlet oil pipeline form a heat transfer oil supply circuit. The circulating oil pump can ensure the circulation of the heat transfer oil and complete the external heat exchange process.

[0032] In some other embodiments, an air preheater 12 is provided on the flue gas duct of the biomass gas-fired thermal oil boiler 2. The air preheater 12 is located downstream of the flue gas duct near the waste heat steam boiler 4. The air preheater 12 preheats the air entering the burner. The air preheater can exchange heat with the flue gas discharged from the waste heat steam boiler again, absorb waste heat, and improve energy utilization efficiency.

[0033] In some other embodiments, an economizer 13 is connected to the flue gas pipe of the biomass gas-fired steam boiler 5, and a diversion pipe 14 connected to the economizer for heat exchange is provided on the deoxygenated water pipeline 10 entering the biomass gas-fired steam boiler 5. A deoxygenated water pump 18 is connected to the deoxygenated water pipeline near the deoxygenated water device 9.

[0034] Economizers can recover waste heat from flue gas and reduce heat loss.

[0035] In some other embodiments, the inlet pipe 14 includes an inlet pipe that enters the economizer 13 and an outlet pipe that exits the economizer 13. A gate valve 15 is connected to the deoxygenated water pipeline between the inlet pipe and the outlet pipe. The opening and closing of the gate valve directly controls whether the deoxygenated water entering the biomass gas-fired steam boiler completely exchanges heat with the economizer.

[0036] In other embodiments, the flue gas duct of the biomass gas-fired thermal oil boiler 2 and the flue gas duct of the biomass gas-fired steam boiler 5 converge to the external chimney 16, which is a reasonable layout and facilitates the treatment of the discharged flue gas.

[0037] This system uses biomass as a raw material, reducing dependence on traditional fossil fuels and lowering greenhouse gas emissions. Simultaneously, the waste heat recovery device within the system fully recovers waste heat from the flue gas, reducing energy waste and further minimizing environmental pollution, resulting in significant environmental benefits.

[0038] This system operates stably and reliably, with all components working together to form a stable heating system. The circulating oil pump ensures stable circulation of the heat transfer oil, the deaerator pump provides stable power for the supply of deaerator water, and the biomass gas induced draft fan ensures stable gas delivery, enabling the entire system to operate stably and reliably for extended periods, providing users with a continuous and stable supply of heat energy.

[0039] The specific operation process of this system is as follows:

[0040] The biomass feedstock undergoes a gasification reaction in the biomass gasifier assembly 1, and the resulting biomass gas passes sequentially through the biomass gas induced draft fan 11 and the biomass gas three-way valve 8 in the gas pipeline 7.

[0041] Based on the user's heating needs, the biomass gas three-way valve 8 delivers biomass gas to the biomass gas thermal oil boiler 2 and the biomass gas steam boiler 5 respectively. In the biomass gas thermal oil boiler 2, the biomass gas is burned to heat the thermal oil, and the circulating oil pump 17 drives the thermal oil to circulate in the oil outlet pipeline 32 and the oil return pipeline 31, providing stable heat energy for the heat-using equipment.

[0042] Meanwhile, the biomass gas-fired steam boiler 5 uses the heat generated by the combustion of biomass gas to heat the deoxygenated water to produce steam, which is then output to the user through the steam pipeline 6.

[0043] Flue gas flows out from the flue of the biomass gas-fired thermal oil boiler, passes through the waste heat steam boiler 4 and the air preheater 12 in sequence. The waste heat steam boiler 4 uses the waste heat of the flue gas to generate steam, and the air preheater 12 preheats the air entering the burner. Another stream of flue gas flows out from the flue of the biomass gas-fired steam boiler, heats the deoxygenated water in the economizer 13, and then merges with the aforementioned flue gas before being discharged into the atmosphere through the chimney 16.

[0044] The flow of deoxygenated water in the deoxygenated water pipeline 10 is powered by the deoxygenated water pump 18. After being heated by the economizer 13, the deoxygenated water is sent to the biomass gas-fired steam boiler 5 to generate steam for users. Another deoxygenated water enters the waste heat steam boiler 4 for heating and then generates steam for users.

[0045] This device meets the diverse heat energy needs of different users by rationally controlling the operating parameters of each device and the gas distribution ratio, realizing the clean and efficient utilization of biomass energy. The system can stably and efficiently supply steam and heat transfer oil simultaneously, adapting to users' wide range of heat energy needs.

[0046] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A biomass gasification heating system that simultaneously supplies steam and heat transfer oil, characterized in that, include: A biomass gasifier assembly (1) is provided with an external biomass gas pipe; A biomass gas-fired thermal oil boiler (2) provides heat energy to the outside through a thermal oil pipeline (3). A waste heat steam boiler (4) is installed on the flue gas exhaust pipe of the biomass gas-fired thermal oil boiler (2). The waste heat steam boiler (4) uses the waste heat of the flue gas to provide steam heat energy to the outside. A biomass gas-fired steam boiler (5) provides heat energy to the outside through a steam pipeline (6). The biomass gas-fired thermal oil boiler (2) and the biomass gas-fired steam boiler (5) are connected to the biomass gas pipeline through a gas pipeline (7). A three-way valve (8) is provided on the gas pipeline (7) to control the gas receiving status of the biomass gas-fired thermal oil boiler (2) and the biomass gas-fired steam boiler (5). The deoxygenated water device (9) generates deoxygenated water and connects to the waste heat steam boiler (4) and the biomass gas-fired steam boiler (5) respectively through the deoxygenated water pipeline (10). The deoxygenated water device (9) provides steam water source for the waste heat steam boiler (4) and the biomass gas-fired steam boiler (5).

2. The biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 1, characterized in that, The gas pipeline (7) is equipped with an induced draft fan (11) for conveying biomass gas, and the induced draft fan (11) is located upstream of the gas pipeline near the three-way valve (8).

3. A biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 1, characterized in that, The heat transfer oil pipeline (3) includes a return oil pipeline (31) and an outlet oil pipeline (32), and a circulating oil pump (17) for pumping oil is connected to the return oil pipeline (31).

4. A biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 1, characterized in that, An air preheater (12) is provided on the flue gas duct of the biomass gas-fired thermal oil boiler (2). The air preheater (12) is located downstream of the flue gas duct near the waste heat steam boiler (4). The air preheater (12) preheats the air entering the burner.

5. A biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 1, characterized in that, An economizer (13) is connected to the flue gas pipe of the biomass gas-fired steam boiler (5). A diversion pipe (14) for heat exchange is provided on the deoxygenated water pipeline (10) entering the biomass gas-fired steam boiler (5). A deoxygenated water pump (18) is connected to the deoxygenated water pipeline near the deoxygenated water device (9).

6. A biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 5, characterized in that, The drain pipe (14) includes an inlet drain pipe that enters the economizer (13) and an outlet drain pipe that exits the economizer (13). A gate valve (15) is connected to the deoxygenated water pipeline between the inlet drain pipe and the outlet drain pipe.

7. A biomass gasification heating system for simultaneously supplying steam and heat transfer oil according to claim 1, characterized in that, The flue gas pipe of the biomass gas-fired thermal oil boiler (2) and the flue gas pipe of the biomass gas-fired steam boiler (5) converge to the external chimney (16).

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