Household miniature heat-conducting oil furnace system

Abstract

The invention relates to a household miniature heat-conducting oil furnace system which adopts a liquid-phase organic heat carrier internal circulation heat regeneration technology combining an economizer and an external air pre-heater to recover flue gas waste heat, so that flue gas low-temperature corrosion is effectively avoided, and meanwhile, high-temperature efficient heat utilization of a heat-conducting oil furnace technology in families is realized. The implementation and popularization of the method have excellent economic and social significance.

Description

Technical Field

[0001] The invention belongs to the technical field of boilers, and in particular relates to a household micro thermal oil boiler system adopting economizer and external air preheater heat recovery technology. Background Art

[0002] At present, household rice cookers, electric kettles, electric water heaters, etc. generally use electricity as energy for cooking, boiling water, providing hot water, etc., which is convenient and fast. However, the actual comprehensive thermal utilization efficiency of electricity as a secondary energy source for heating is not high. Taking a domestic 30MW condensing steam generator set as an example, the thermal utilization efficiency of power generation fuel is between 30% and 35%. In addition to the transmission line loss, the thermal utilization efficiency of the fuel is roughly 27% to 32%. Even if the electrical energy is 100% converted into heat, the comprehensive thermal utilization efficiency of the fuel is only about 30%.

[0003] Taking household gas stoves as an example, the thermal utilization efficiency of gas in domestic gas stoves is between 55% and 63%. Gas combustion is used to heat cooking utensils such as steamers, kettles, woks, etc. When the stove is heated by open flames, the comprehensive thermal utilization efficiency of the fuel is between 14% and 20%; if the gas stove uses a jacket or water jacket around the lower part of the cooker to recover heat, the comprehensive thermal utilization efficiency of the gas is about 28%.

[0004] A thermal oil boiler (i.e., organic heat carrier boiler) is a special boiler that uses an organic heat carrier, i.e., thermal oil, as its working medium. The high-temperature flue gas generated by the combustion of fuel heats the thermal oil. After the temperature of the thermal oil is increased, it provides the required heat for the heat-using equipment. When the flue gas generated by the combustion of the fuel is discharged through the chimney, the temperature is generally around 250°C, and some are even as high as 350°C, which not only wastes heat but also causes thermal pollution to the environment.

[0005] Industrial thermal oil furnaces use air preheaters to recover part of the flue gas waste heat, but there is a problem of low-temperature corrosion of the air preheater. Some processes are equipped with waste heat recovery devices with steam generators such as heat pipe boilers. For example, ZL200420027889.4 provides a waste heat recovery device for tail gas of thermal oil furnaces with steam generators. This technology can reduce the exhaust temperature of thermal oil furnaces to about 160°C and recover a certain amount of steam; however, if the thermal oil furnace user does not need the steam generated by the waste heat recovery process, or the steam load changes, the common phenomenon of excess steam venting of the steam generator will occur. The use of this type of technology is greatly restricted, and the overall thermal efficiency of the organic heat carrier furnace is still low, which does not meet the requirements of energy saving and environmental protection.

[0006] Therefore, how to reasonably recycle and utilize the flue gas waste heat of the thermal oil boiler, reduce the exhaust temperature, avoid low-temperature corrosion, improve the overall thermal efficiency of the thermal oil boiler, and realize the high-temperature and high-efficiency application of thermal oil boiler technology in households has become a hot topic in this field. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the above-mentioned prior art, adopt economizer and air preheater heat recovery technology outside the furnace, effectively avoid low-temperature corrosion of the economizer by flue gas, and realize high-temperature and efficient heat utilization of thermal oil furnace technology in the home.

[0008] The purpose of the present invention is achieved by the following measures:

[0009] A household micro thermal oil furnace system, characterized in that the household micro thermal oil furnace system adopts a micro thermal oil furnace, and the rated thermal power of the micro thermal oil furnace used by the household micro thermal oil furnace system is ≤99.9KW, comprising:

[0010] The heat transfer oil furnace body 1 heats the heat transfer oil.

[0011] Burner 2, air is sent into burner 2, mixed with fuel for combustion, and the high-temperature flue gas generated by the combustion enters the thermal oil furnace body 1 to reduce the temperature and is discharged from the flue 9.

[0012] The heat transfer oil pump 7 is used to pressurize and transport the heat transfer oil.

[0013] The thermal oil tank 5 is used as a heat storage device for heat storage.

[0014] The economizer 15 recovers the waste heat of the flue gas in the flue 9.

[0015] The air preheater 12 outside the furnace heats the air and enters the burner 2 as combustion air.

[0016] The heat transfer oil in the heat storage oil tank 5 is pressurized by the heat transfer oil pump 7, and the pressurized heat transfer oil enters the heat transfer oil furnace body 1 for heating, and then returns to the heat storage oil tank 5. The economizer 15 is arranged in the flue 9, and the flue gas with a higher temperature in the flue 9 is discharged after the temperature is reduced by the economizer 15. The heat transfer oil drawn from the outlet of the heat transfer oil pump 7 and the heat storage oil tank 5 is cooled by the air preheater 12 outside the furnace, and then enters the economizer 15 to recover the heat of the flue gas. The heat transfer oil with increased temperature coming out of the economizer 15 returns to the inlet pipeline of the heat transfer oil pump 7, and is transported to the burner 2 as combustion air by the blower 10 and the hot air 14 formed by the air preheater 12 outside the furnace.

[0017] The heat transfer oil in the heat storage oil tank 5 returns to the heat storage oil tank 5 through the heat transfer oil pump 7 and the oil heater 3, or the heat transfer oil in the heat storage oil tank 5 returns to the heat storage oil tank 5 through the heat transfer oil pump 7, the heat transfer oil furnace body 1, and the oil heater 3.

[0018] After the heat transfer oil in the heat storage oil tank 5 completes the heat storage process, the burner 2 and the blower 10 may not be started, and the heat transfer oil in the heat storage oil tank 5 is used to realize the heating process of the oil heater 3.

[0019] The oil heater 3 includes a heating unit 4. The heat transfer oil coming out of the heat storage oil tank 5 is transported into the heating unit 4 via a heat transfer oil pump 7 as a heat source for the oil heater 3. The heat transfer oil coming out of the heating unit 4 returns to the heat storage oil tank 5, thereby forming a heat utilization circulation loop of the heat storage oil in the heat storage oil tank 5.

[0020] The oil heater 3 includes an oil-heating kettle, an oil-heating rice cooker, an oil-heating small kitchen treasure, an oil-heating cooking pot, an oil-heating heater, an oil-heating frying pan, etc., which are heated by thermal oil and are used to replace traditional electric kettles, electric rice cookers, electric small kitchen treasures, electric steaming pots, electric heaters, electric frying pans, etc., and its functional design is carried out with reference to these electric heating devices.

[0021] When the oil heater 3 is in use, the high-temperature heat transfer oil stored in the heat storage oil tank 5 is used, and its temperature is higher than 350° C., which can meet the rapid heating requirements required for boiling water, steaming rice, cooking rice, making porridge, heating, etc.

[0022] Preferably, the contact part of the oil heater 3 and the heating unit 4 adopts the same structural design, so as to enhance the flexibility and versatility of the use of the heating unit 4 and the oil heater 3. The heating unit 4 adopts a flat heating surface structure such as a flat hollow cavity structure or a square tube coil of a hollow cavity, and adopts well-known heat transfer enhancement measures.

[0023] Furthermore, the oil heaters 3 with different functions can be connected to the heat utilization circuit in series, in parallel or in series-parallel mode.

[0024] The burner 2 of the micro thermal oil furnace uses coal, biomass, oil or gas as fuel.

[0025] The external air preheater 12 adopts an indirect heat exchange method, and the heat exchange tubes adopt smooth tubes, fin tubes or spiral groove tubes.

[0026] The economizer 15 adopts an indirect heat exchange method, and the heat exchange tubes adopt smooth tubes, finned tubes or spiral grooved tubes.

[0027] The economizer 15 is a serpentine heat exchanger, a shell and tube heat exchanger or other types of heat exchangers.

[0028] Preferably, the internal circulation heat transfer oil pipeline 11 is connected from the pipeline between the outlet of the heat transfer oil pump 7 and the heat transfer oil furnace body 1, enters the air preheater 12 outside the furnace, and heats the air sent into the air preheater 12 outside the furnace from the blower 10.

[0029] By controlling the inlet temperature of the heat transfer oil of the economizer 15 (for example, above 85°C, the appropriate temperature is determined according to the sulfur content of the fuel), low-temperature corrosion of the economizer 15 can be effectively avoided. Under the premise of avoiding condensation, the waste heat of the flue gas can be utilized to the maximum extent, so that the heat transfer oil furnace can operate economically and with high thermal efficiency, thereby achieving the purpose of energy saving and consumption reduction.

[0030] Preferably, the thermal storage oil tank 5 is provided with a safety valve 17 , an exhaust valve 18 , and a discharge valve 8 .

[0031] It should be noted that in daily life, if you need to fry, stir-fry, cook or deep-fry, you need to provide a high temperature of 300-600℃. The food-grade heat transfer oil that has been actually used can withstand a high temperature of about 450℃. After selection, it can basically meet the requirements of frying, stir-frying, cooking and deep-frying.

[0032] The micro thermal oil furnace can adopt a special thermal oil packaging process: after the assembled micro thermal oil furnace and its oil pipelines, valves, and ancillary facilities are purged, air tightness tested, and hydraulic pressure tested and passed, the thermal oil in the assembled micro thermal oil furnace is dehydrated and degassed in the manufacturing unit. After passing the test, nitrogen replaces the air remaining in the micro thermal oil furnace, and the furnace is packaged and insulated; or the assembled micro thermal oil furnace system is first replaced with nitrogen, and then the dehydrated and degassed thermal oil is injected and packaged and insulated.

[0033] A filter 6 is provided for filtering solid impurity particles that may be present in the heat transfer oil inlet of the heat transfer oil pump 7 .

[0034] The heat storage oil tank 4 in the micro thermal oil furnace plays the role of oil and gas separation, buffering, heat storage and storage, and insulation measures need to be taken. The design temperature range of the insulation outer surface is preferably 25 to 30°C; the heat storage oil tank 4 adopts a horizontal or vertical structure, with the principle of facilitating the compact arrangement of the stove system. Preferably, the heat storage oil tank 4 adopts a vertical structure.

[0035] The design rated thermal power of the micro thermal oil furnace in this system is ≤99.9KW, which is lower than the current national safety technical specifications (TSG11-2020 boiler safety technical specifications) and does not fall within the scope of supervision of pressure-bearing special equipment. The material selection of the pressure-bearing parts of the micro thermal oil furnace is carried out in accordance with the TSG11-2020 boiler safety technical specifications, and other parts are implemented as a reference on the premise of ensuring safety.

[0036] The parts not involved in the present invention are implemented by using existing technologies, that is, existing mature and reliable reasonable improvement measures can be introduced into this system, such as setting necessary valves, automatic control facilities, etc.

[0037] Compared with the prior art, the present invention has the following advantages:

[0038] 1. Energy saving: Compared with traditional gas, oil, coal and straw stoves, electric stoves and electric water heaters, the micro thermal oil furnace technology is adopted. Combined with mature boiler and heat transfer device design technology, the comprehensive thermal utilization efficiency of household stove fuel is more than doubled. While realizing the internal circulation and efficient thermal utilization of the waste heat of the thermal oil furnace flue gas, the thermal oil storage is used to achieve high-temperature and efficient thermal utilization. It has great economic and application significance and great promotion value.

[0039] 2. Safety: The flame of traditional fuel stoves is in direct contact with the cooking utensils. If you leave for something, the flame will be turned off and leaked, which is very harmful. It is easy to burn dry, burn or burn. However, the heat transfer oil with heat storage is used as the heat source. The heat medium system is reliably sealed. The temperature of the heat transfer oil is above 350℃, which can meet the daily needs of boiling water, making rice, porridge or steaming. The functional design of oil kettles, oil rice cookers and oil steaming pots can refer to electric kettles and rice cookers. There will be no burning or coking. Even if it is dried, it is not harmful.

[0040] 3. Environmental protection: Energy saving is the biggest emission reduction. The system can reduce pollutants and carbon emissions in many aspects. Compared with electric energy driven air conditioners, it can reduce CO2 emissions by 40%, SO2 emissions by 100%, and NO X Emissions more than 60%;

[0041] 4. Efficiency: The technology applied for in the present invention is essentially an optimized household energy island. According to conservative estimates, the comprehensive utilization efficiency of household energy is more than 55%. If combined with solar thermal utilization, the economic, social and environmental benefits will be even greater, and it is certain to be increased to more than 62%;

[0042] 5. Easy and compact installation: Through optimized design, this system can form a quick-install structure according to the actual situation of the kitchen, which is compact and convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 The present invention is a schematic diagram of the structure of a household micro thermal oil furnace system.

[0044] Figure 1 Among them, 1-thermal oil furnace body, 2-burner, 3-oil heater, 4-heating unit, 5-thermal oil storage tank, 6-filter, 7-thermal oil pump, 8-discharge valve, 9-flue, 10-blower, 11-internal circulation thermal oil pipeline, 12-air preheater outside the furnace, 13-cold oil pipeline, 14-hot air, 15-economizer, 16-thermal oil heat return pipeline, 17-safety valve, 18-exhaust valve. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1 The present invention is further described in detail with reference to the accompanying drawings and specific examples.

[0046] Embodiment 1:

[0047] A household micro thermal oil furnace system, wherein the household micro thermal oil furnace system adopts a micro thermal oil furnace, and the rated thermal power of the micro thermal oil furnace used by the household micro thermal oil furnace system is ≤99.9KW, comprising:

[0048] The heat transfer oil furnace body 1 heats the heat transfer oil.

[0049] Burner 2, air is sent into burner 2, mixed with fuel for combustion, and the high-temperature flue gas generated by the combustion enters the thermal oil furnace body 1 to reduce the temperature and is discharged from the flue 9.

[0050] The heat transfer oil pump 7 is used to pressurize and transport the heat transfer oil.

[0051] The thermal oil tank 5 is used as a heat storage device for heat storage.

[0052] The economizer 15 recovers the waste heat of the flue gas in the flue 9.

[0053] The air preheater 12 outside the furnace heats the air and enters the burner 2 as combustion air.

[0054] The heat transfer oil in the heat storage oil tank 5 is pressurized by the filter 6 and the heat transfer oil pump 7. The pressurized heat transfer oil enters the heat transfer oil furnace body 1 for heating and then returns to the heat storage oil tank 5. The economizer 15 is arranged in the flue 9. The flue gas with a higher temperature in the flue 9 is discharged after the temperature is reduced by the economizer 15. The heat transfer oil in the internal circulation heat transfer oil pipeline 11 drawn from the outlet of the heat transfer oil furnace body 1 and the heat storage oil tank 5 is cooled by the air preheater 12 outside the furnace and then enters the economizer 15 through the cold oil pipeline 13 to recover the heat of the flue gas. The heat transfer oil with increased temperature coming out of the economizer 15 returns to the heat storage oil tank 5 and is transported to the burner 2 as combustion air by the hot air 14 formed by the blower 10 and the air preheater 12 outside the furnace.

[0055] The heat transfer oil in the heat storage oil tank 5 returns to the heat storage oil tank 5 through the heat transfer oil pump 7 , the heat transfer oil furnace body 1 , and the oil heater 3 .

[0056] After the heat transfer oil in the heat storage oil tank 5 completes the heat storage process, the burner 2 and the blower 10 may not be started, and the heat transfer oil in the heat storage oil tank 5 is used to realize the heating process of the oil heater 3.

[0057] The oil heater 3 includes a heating unit 4. The heat transfer oil coming out of the heat storage oil tank 5 is transported into the heating unit 4 via a heat transfer oil pump 7 as a heat source for the oil heater 3. The heat transfer oil coming out of the heating unit 4 returns to the heat storage oil tank 5, thereby forming a heat utilization circulation loop of the heat storage oil in the heat storage oil tank 5.

[0058] The oil heater 3 includes an oil-heating kettle, an oil-heating rice cooker, an oil-heating small kitchen treasure, an oil-heating cooking pot, an oil-heating heater, an oil-heating frying pan, etc., which are heated by thermal oil and are used to replace traditional electric kettles, electric rice cookers, electric small kitchen treasures, electric steaming pots, electric heaters, electric frying pans, etc., and its functional design is carried out with reference to these electric heating devices.

[0059] When the oil heater 3 is in use, the high-temperature heat transfer oil stored in the heat storage oil tank 5 is used, and its temperature is higher than 350° C., which can meet the rapid heating requirements required for boiling water, steaming rice, cooking rice, making porridge, heating, etc.

[0060] Preferably, the contact part of the oil heater 3 and the heating unit 4 adopts the same structural design, so as to enhance the flexibility and versatility of the use of the heating unit 4 and the oil heater 3. The heating unit 4 adopts a flat heating surface structure such as a flat hollow cavity structure or a square tube coil of a hollow cavity, and adopts well-known heat transfer enhancement measures.

[0061] Furthermore, the oil heaters 3 with different functions can be connected to the heat utilization circuit in series, in parallel or in series-parallel mode.

[0062] The burner 2 of the micro thermal oil furnace uses gas as fuel.

[0063] The external air preheater 12 adopts an indirect heat exchange method, and the heat exchange tubes adopt fin tubes or spiral groove tubes.

[0064] The economizer 15 adopts an indirect heat exchange method, and the heat exchange tubes adopt smooth tubes, finned tubes or spiral grooved tubes.

[0065] The economizer 15 is a serpentine tube heat exchanger.

[0066] Preferably, the internal circulation heat transfer oil pipeline 11 is connected from the pipeline between the outlet of the heat transfer oil pump 7 and the heat transfer oil furnace body 1, enters the air preheater 12 outside the furnace, and heats the air sent into the air preheater 12 outside the furnace from the blower 10.

[0067] By controlling the inlet temperature of the heat transfer oil of the economizer 15 (for example, above 85°C, the appropriate temperature is determined according to the sulfur content of the fuel), low-temperature corrosion of the economizer 15 can be effectively avoided. Under the premise of avoiding condensation, the waste heat of the flue gas can be utilized to the maximum extent, so that the heat transfer oil furnace can operate economically and with high thermal efficiency, thereby achieving the purpose of energy saving and consumption reduction.

[0068] Preferably, the thermal storage oil tank 5 is provided with a safety valve 17 , an exhaust valve 18 , and a discharge valve 8 .

[0069] It should be noted that in daily life, if you need to fry, stir-fry, cook or deep-fry, you need to provide a high temperature of 300-600℃. The food-grade heat transfer oil that has been actually used can withstand a high temperature of about 450℃. After selection, it can basically meet the requirements of frying, stir-frying, cooking and deep-frying.

[0070] The micro thermal oil furnace can adopt a special thermal oil packaging process: after the assembled micro thermal oil furnace and its oil pipelines, valves, and ancillary facilities are purged, air tightness tested, and hydraulic pressure tested and passed, the thermal oil in the assembled micro thermal oil furnace is dehydrated and degassed in the manufacturing unit. After passing the test, nitrogen replaces the air remaining in the micro thermal oil furnace, and the furnace is packaged and insulated; or the assembled micro thermal oil furnace system is first replaced with nitrogen, and then the dehydrated and degassed thermal oil is injected and packaged and insulated.

[0071] The heat storage oil tank 4 in the micro thermal oil furnace plays the role of oil and gas separation, buffering, heat storage and storage, and insulation measures need to be taken. The design temperature range of the insulation outer surface is preferably 25 to 30°C; the heat storage oil tank 4 adopts a horizontal or vertical structure, with the principle of facilitating the compact arrangement of the stove system. Preferably, the heat storage oil tank 4 adopts a vertical structure.

[0072] The design rated thermal power of the micro thermal oil furnace in this system is ≤99.9KW, which is lower than the current national safety technical specifications (TSG11-2020 boiler safety technical specifications) and does not fall within the scope of supervision of pressure-bearing special equipment. The material selection of the pressure-bearing parts of the micro thermal oil furnace is carried out in accordance with the TSG11-2020 boiler safety technical specifications, and other parts are implemented as a reference on the premise of ensuring safety.

[0073] The parts not involved in the present invention are implemented by using existing technologies, that is, existing mature and reliable reasonable improvement measures can be introduced into this system.

[0074] Although the present invention has been disclosed as above with preferred embodiments, they are not intended to limit the present invention. Anyone familiar with the art can make various changes or modifications without departing from the spirit and scope of the present invention, which also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the definition of the claims of this application.

Claims

1. A household micro thermal oil furnace system, characterized in that: The household micro thermal oil furnace system adopts a micro thermal oil furnace, the rated thermal power of which is ≤99.9KW, and includes: The heat transfer oil furnace body (1) heats the heat transfer oil. The air is fed into the burner (2) and mixed with the fuel for combustion. The high-temperature flue gas generated by the combustion enters the thermal oil furnace body (1) to reduce the temperature and is then discharged from the flue (9). The heat transfer oil pump (7) is used to pressurize and transport the heat transfer oil. The thermal oil tank (5) serves as a heat storage device for storing heat. The economizer (15) recovers the waste heat of the flue gas in the flue (9). The air preheater (12) outside the furnace heats the air and enters the burner (2) as combustion air. The heat transfer oil in the heat storage oil tank (5) is pressurized by the heat transfer oil pump (7), and the pressurized heat transfer oil enters the heat transfer oil furnace body (1) for heating and then returns to the heat storage oil tank (5). The economizer (15) is arranged in the flue (9), and the flue gas with a relatively high temperature in the flue (9) is discharged after the temperature is reduced by the economizer (15). The heat transfer oil drawn from between the outlet of the heat transfer oil pump (7) and the heat storage oil tank (5) is cooled by the air preheater (12) outside the furnace, and then enters the economizer (15) to recover the heat of the flue gas. The heat transfer oil with a higher temperature coming out of the economizer (15) returns to the inlet pipeline of the heat transfer oil pump (7), and is transported to the burner (2) as combustion air by the hot air (14) formed by the blower (10) and the air preheater (12) outside the furnace. The heat transfer oil in the heat storage oil tank (5) returns to the heat storage oil tank (5) through the heat transfer oil pump (7) and the oil heater (3), or the heat transfer oil in the heat storage oil tank (5) returns to the heat storage oil tank (5) through the heat transfer oil pump (7), the heat transfer oil furnace body (1) and the oil heater (3).

2. The household micro thermal oil furnace system according to claim 1, characterized in that: The fuel of the micro thermal oil furnace burner (2) is coal, biomass, oil or gas.

3. The household micro thermal oil furnace system according to claim 1, characterized in that: The external air preheater (12) adopts an indirect heat exchange method, and the heat exchange tubes of the external air preheater (12) adopt smooth tubes, fin tubes or spiral groove tubes.

4. The household micro thermal oil furnace system according to claim 1, characterized in that: The economizer (15) adopts an indirect heat exchange method, and the heat exchange tubes of the economizer (15) adopt smooth tubes, finned tubes or spiral grooved tubes.

5. The household micro thermal oil furnace system according to claim 1, characterized in that: The oil heater (3) comprises a heating unit (4). The heat transfer oil from the heat storage oil tank (5) is transported into the heating unit (4) via a heat transfer oil pump (7) to serve as a heat source for the oil heater (3). The heat transfer oil from the heating unit (4) is then returned to the heat storage oil tank (5), thereby forming a heat utilization circulation loop for the heat storage oil in the heat storage oil tank (5).

6. The household micro thermal oil furnace system according to claim 1, characterized in that: The oil heater (3) includes an oil-heating kettle, an oil-heating rice cooker, an oil-heating small kitchen treasure, an oil-heating cooking pot, an oil-heating heater, and an oil-heating frying pan that are heated by heat-conducting oil.

7. The household micro thermal oil furnace system according to claim 1, characterized in that: The contact parts of the oil heater (3) and the heating unit (4) adopt the same structural design.

8. The household micro thermal oil furnace system according to claim 1, characterized in that: The oil heaters (3) with different functions are connected to the heat utilization circuit in a series, parallel or series-parallel manner.

9. The household micro thermal oil furnace system according to claim 1, characterized in that: The micro thermal oil furnace adopts a special thermal oil packaging process: after the assembled micro thermal oil furnace and its oil pipelines, valves, and ancillary facilities are purged, air tightness tested, and hydraulic pressure tested to be qualified, the thermal oil in the assembled micro thermal oil furnace is dehydrated and degassed in the manufacturing unit. After passing the test, nitrogen replaces the air remaining in the micro thermal oil furnace, and the furnace is packaged and insulated; or the assembled micro thermal oil furnace system is first replaced with nitrogen, and then the dehydrated and degassed thermal oil is injected and packaged and insulated.

10. The household micro thermal oil furnace system according to claim 1, characterized in that: The heat storage oil tank (4) in the micro thermal oil furnace plays the role of oil and gas separation, buffering, heat storage and storage, and takes heat preservation measures.

Images