Module condensation type gas-electric complementary inspection-free boiler system and use method

Abstract

The invention belongs to the technical field of boiler heating, and relates to a module condensation type gas-electric complementary inspection-free boiler system and a using method. The electric heating assembly is used for realizing electric heating of a plurality of heating surfaces. And the combustor is used for realizing gas heating of the plurality of heating surfaces. The multiple heating surfaces are sequentially connected in series from top to bottom in the boiler body, gradient heating is conducted on the multiple heating surfaces, heat gradient transfer of the heat exchange surfaces is achieved, stable operation of the whole system is guaranteed, and pipe explosion caused by local high temperature is prevented. The bottommost heating surface is connected with a gas-liquid separator, and high-temperature steam generated after heating is subjected to fish liquid water separation in the gas-liquid separator. When the electric heating assembly and the combustor work at the same time, large evaporation capacity is guaranteed. Besides, through the combination of the two heating modes, the large evaporation capacity is achieved, the heat supply requirement is guaranteed, when one heating mode prevents faults, the other heating mode can still work, continuous heating is guaranteed, and the heat supply stability of the device is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of boiler heating, and relates to a modular condensing gas-electricity complementary inspection-free boiler system and a use method thereof. Background Art

[0002] Energy-saving and environmental protection technologies are important means to deal with resource shortages and environmental pollution. They can reduce energy consumption and pollutant emissions, and alleviate the problems of resource shortages and environmental pollution. Secondly, by improving energy utilization efficiency and reducing pollutant emissions, the production and operating costs of enterprises can be reduced, and the competitiveness of enterprises can be improved. Finally, the promotion and application of energy-saving and environmental protection technologies can also promote technological innovation and industrial upgrading, and promote the sustainable development of the economy and society. Accelerating the development of efficient use of clean energy at the user end is an important path to promote coordinated and stable development and build a clean, low-carbon, safe and efficient modern energy system. Among them, it is of great significance to ensure the energy demand of heating users and users in small industrial parks and to carry out efficient condensing boiler heating technology with natural gas as the energy supply coupled with electric energy complementation, such as inspection-free boilers.

[0003] Inspection-free boilers refer to boilers with design parameters that have a water volume (the total geometric volume of the inlet and outlet of the steam-water system) of less than 30L at the designed normal water level. Inspection-free boilers are widely used in industrial, commercial, civil and other fields, such as steam supply, heating, drying, etc. In industrial production, inspection-free boilers can be used for steam supply and heating in the textile, printing and dyeing, chemical and other industries; in the commercial field, they can be used for hot water supply and heating in hotels, hospitals, schools and other places; in the civil field, they can be used for home heating and hot water supply, etc.

[0004] However, due to the size and weight limitations of existing inspection-free boilers, their evaporation capacity is small, and there is often insufficient heating during peak heating periods. In addition, once a heating component fails, the entire device will be completely unable to work, and there will be a heating gap during maintenance. Summary of the invention

[0005] The purpose of the present invention is to provide a modular condensing gas-electric complementary inspection-free boiler system and a method of use, so as to solve the technical problems of existing inspection-free boilers, such as small evaporation capacity, heating component failure, and heating idle period during maintenance due to size and weight limitations. The present invention gives full play to its advantages within the inspection-free parameter range, achieves a larger evaporation capacity with a smaller size and weight, can ensure continuous heating, and improves the stability of the heating supply of the device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention discloses a modular condensing gas-electric complementary inspection-free boiler system, comprising a boiler body and a water inlet pipeline. A plurality of heating surfaces are serially connected in the boiler body from top to bottom, the water inlet pipeline is connected to the topmost heating surface, the bottommost heating surface is connected to a gas-liquid separator, electric heating components are arranged on the plurality of heating surfaces, a burner is arranged in the boiler body, and the burner is located at the bottom of the plurality of heating surfaces.

[0008] Further, the plurality of heating surfaces include a condensing heating surface, an economizer heating surface, a low-temperature evaporating heating surface and a high-temperature evaporating heating surface, the condensing heating surface, the economizer heating surface, the low-temperature evaporating heating surface and the high-temperature evaporating heating surface are sequentially connected in series from top to bottom, the condensing heating surface is connected to a water inlet pipeline, and the high-temperature evaporating heating surface is connected to a gas-liquid separator;

[0009] The condensing heating surface, the economizer heating surface, the low-temperature evaporating heating surface and the high-temperature evaporating heating surface are all provided with electric heating components.

[0010] Furthermore, a condenser electric heater assembly is provided on the condensing heating surface, an economizer electric heater assembly is provided on the economizer heating surface, a low-temperature electric heater assembly is provided on the low-temperature evaporation heating surface, and a high-temperature electric heater assembly is provided on the high-temperature evaporation heating surface;

[0011] The high-temperature electric heater assembly, the low-temperature electric heater assembly, the economizer electric heater assembly and the condenser electric heater assembly are respectively provided with power regulating components, which are used to adjust the working power of the high-temperature electric heater assembly, the low-temperature electric heater assembly, the economizer electric heater assembly and the condenser electric heater assembly.

[0012] Furthermore, the water inlet pipeline is connected to the water tank, and a water pump is arranged on the water inlet pipeline, and the water pump is located between the water tank and the condensation heating surface.

[0013] Furthermore, a bypass pipe is provided on the water inlet pipe, the inlet of the bypass pipe is located between the water pump and the condensing heating surface, and the outlet of the bypass pipe is connected to the water tank.

[0014] Further, the water tank is connected to a softening water treatment device;

[0015] The water tank is set by a float valve.

[0016] Furthermore, a condensate discharge pipe is provided on the boiler body, and the condensate discharge pipe is located at the bottom of the condensation heating surface.

[0017] Furthermore, a tail flue is provided on the boiler body, a flue gas damper valve is provided in the tail flue, a flue bypass is provided on the tail flue, a bypass automatic regulating valve is provided on the flue bypass, and the flue damper valve is located between the two connecting ports of the flue bypass and the tail flue.

[0018] Furthermore, the tail flue is located at the top of the boiler body, and the tail flue is connected to the chimney.

[0019] Based on the above structure, the present invention also discloses a method for using a modular condensing gas-electricity complementary inspection-free boiler system, comprising the following steps:

[0020] Water is introduced into several heating surfaces through water inlet pipes;

[0021] Gas heating mode: turn off the electric heating component, start the burner, and heat the water in several heating surfaces through the burner;

[0022] Electric heating mode: turn off the burner, start the electric heating component, and heat the water in several heating surfaces through the electric heating component;

[0023] Mixed heating mode: start the burner and the electric heating component to heat the water in several heating surfaces at the same time through the burner and the electric heating component;

[0024] The high-temperature water vapor generated in the heating surface is separated by a gas-liquid separator.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The boiler body of the present invention is a heating space where the burner heats each heating surface, and the water inlet pipeline is used to input water to be heated to each heating surface. The electric heating component is used to realize electric heating of several heating surfaces. The burner is used to realize gas heating of several heating surfaces. Several heating surfaces are connected in series from top to bottom in the boiler body, and multiple heating surfaces are gradient heated to realize the step-by-step heat transfer of the heat exchange surface, thereby ensuring the stable operation of the entire system and preventing local high temperature from causing pipe burst. The bottom heating surface is connected to the gas-liquid separator, and the high-temperature steam generated after heating is separated from liquid water in the gas-liquid separator. When the electric heating component and the burner work at the same time, mixed heating of electric heating and gas heating can be realized, which is conducive to ensuring the peak heating demand and ensuring a large evaporation amount. In addition, the combination of the two heating methods not only realizes a large evaporation amount and ensures the heating demand, but also when one of the heating methods fails, the other heating method can still work to ensure continuous heating, which is conducive to ensuring the stability of the heating of the device. The present invention gives full play to its advantages within the inspection-free parameter range, achieves a larger evaporation capacity with a smaller size and weight, makes the installation and use of the equipment more convenient and quick, can ensure continuous heating, and improves the stability of the heating supply of the device.

[0027] 2. The bypass pipeline of the present invention is beneficial to increasing the safety of the water pump.

[0028] 3. The water tank of the present invention is provided with a float valve, which automatically controls the water level of the water tank to ensure that the water level of the water tank is always at a safe water level.

[0029] 4. The condensate discharge pipe of the present invention is used to recover the heat of flue gas condensate water and improve energy utilization.

[0030] 5. In the present invention, when the burner is turned off and only the electric heating assembly is used for heating, the furnace is in a closed state, which causes the temperature of the residual air inside the boiler body to rise, thereby causing the pressure inside the boiler body to increase. At this time, closing the flue gas damper valve and using the bypass automatic regulating valve for air pressure regulation is beneficial to reducing heat flow loss and ensuring the safe operation of the boiler body.

[0031] 6. The method of the present invention inputs water into several heating surfaces through the water inlet pipeline; the method of the present invention provides three working modes, namely, gas heating mode, electric heating mode and mixed heating mode. In the gas heating mode, the electric heating component is turned off, the burner is started, and the water in several heating surfaces is heated by the burner; in the electric heating mode, the burner is turned off, the electric heating component is started, and the water in several heating surfaces is heated by the electric heating component; in the mixed heating mode, the burner and the electric heating component are started, and the water in several heating surfaces is heated by the burner and the electric heating component at the same time; the high-temperature water vapor generated in the heating surface is separated by a gas-liquid separator. The method of the present invention can give full play to its advantages in the range of exempted parameters, and can achieve a large evaporation amount. At the same time, when one heating method fails, the other heating method can still work, which can ensure continuous heating and improve the stability of the heating supply of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a structural diagram of the electric heating component of the present invention;

[0034] Figure 3 The present invention is a flow chart of the method.

[0035] Among them: 1. Softening water treatment equipment; 2. Water tank; 201. Float valve; 3. Water pump; 4. Condensation heating surface; 5. Economizer heating surface; 6. Low-temperature evaporation heating surface; 7. High-temperature evaporation heating surface; 8. Gas-liquid separator; 9. Burner; 10. Boiler body; 11. High-temperature electric heater assembly; 12. Low-temperature electric heater assembly; 13. Economizer electric heater assembly; 14. Condenser electric heater assembly; 15. Tail flue; 16. Flue gas damper valve; 17. Bypass automatic regulating valve; 18. Chimney; 19. Condensate discharge pipe; 20. Water inlet pipe; 21. Electric heating assembly; 22. Heat exchange pipe; 23. Lower elbow; 24. Upper connecting pipe. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0039] See also Figure 1The present invention discloses a modular condensing gas-electric complementary inspection-free boiler system, comprising a boiler body 10 and a water inlet pipe 20. The boiler body 10 is a heating space for the burner 9 to heat each heating surface. The water inlet pipe 20 is used to input water to be heated to each heating surface. Several heating surfaces are connected in series from top to bottom in the boiler body 10, and multiple heating surfaces are gradient heated to achieve step-by-step heat transfer of the heat exchange surface, thereby ensuring the stable operation of the entire system and preventing local high temperature from causing pipe burst. The water inlet pipe 20 is connected to the top heating surface, and water is supplied to the several heating surfaces through the water inlet pipe 20. The bottom heating surface is connected to the gas-liquid separator 8, and the high-temperature steam generated after heating is separated from the liquid water in the gas-liquid separator 8. Electric heating components 21 are provided on the several heating surfaces for realizing electric heating of the several heating surfaces. A burner 9 is provided in the boiler body 10, and the burner 9 is located at the bottom of the several heating surfaces for realizing gas heating of the several heating surfaces. When the electric heating assembly 21 and the burner 9 work at the same time, a mixed heating of electric heating and gas heating can be achieved, which is conducive to ensuring the peak heating demand and ensuring a large evaporation amount. In addition, the combination of the two heating methods not only achieves a large evaporation amount and ensures the heating demand, but also when one of the heating methods fails, the other heating method can still work to ensure continuous heating, which is conducive to ensuring the stability of the heating of the device. The present invention gives full play to its advantages in the inspection-free parameter range, achieves a large evaporation amount with a smaller size and weight, makes the installation and use of the equipment more convenient and quick, can ensure continuous heating, and improves the stability of the heating of the device.

[0040] Embodiment 1:

[0041] See also Figure 1 The present embodiment discloses a modular condensing gas-electric complementary inspection-free boiler system, including a boiler body 10 and a water inlet pipe 20. The boiler body 10 is provided with a condensing heating surface 4, an economizer heating surface 5, a low-temperature evaporation heating surface 6, a high-temperature evaporation heating surface 7 and a burner 9 in sequence from top to bottom. The water inlet pipe 20 is connected to the condensing heating surface 4, the condensing heating surface 4 is connected to the economizer heating surface 5, the economizer heating surface 5 is connected to the low-temperature evaporation heating surface 6, the low-temperature evaporation heating surface 6 is connected to the high-temperature evaporation heating surface 7, and the high-temperature evaporation heating surface 7 is connected to the gas-liquid separator 8;

[0042] The condensing heating surface 4 , the economizer heating surface 5 , the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 are all provided with electric heating components 21 .

[0043] Preferably, the plurality of heating surfaces include a condensing heating surface 4, an economizer heating surface 5, a low-temperature evaporating heating surface 6 and a high-temperature evaporating heating surface 7. The condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporating heating surface 6 and the high-temperature evaporating heating surface 7 are connected in series from top to bottom. The condensing heating surface 4 is connected to the water inlet pipeline 20, and the high-temperature evaporating heating surface 7 is connected to the gas-liquid separator 8. By means of the plurality of heating surfaces connected in series from top to bottom, a step-by-step heat transfer of the heat exchange surfaces is achieved, thereby ensuring the stable operation of the entire system and preventing pipe bursts caused by local high temperatures.

[0044] The condensing heating surface 4 , the economizer heating surface 5 , the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 are all provided with electric heating components 21 .

[0045] Preferably, a condenser electric heater assembly 14 is provided on the condensing heating surface 4, an economizer electric heater assembly 13 is provided on the economizer heating surface 5, a low-temperature electric heater assembly 12 is provided on the low-temperature evaporation heating surface 6, and a high-temperature electric heater assembly 11 is provided on the high-temperature evaporation heating surface 7;

[0046] The high temperature electric heater assembly 11, the low temperature electric heater assembly 12, the economizer electric heater assembly 13 and the condenser electric heater assembly 14 are respectively provided with power adjustment components, which are used to adjust the working power of the high temperature electric heater assembly 11, the low temperature electric heater assembly 12, the economizer electric heater assembly 13 and the condenser electric heater assembly 14. It is used to ensure the real-time adjustment of the working power of each heater assembly to meet the dynamic demand for heating.

[0047] Embodiment 2:

[0048] See also Figure 1 The present embodiment discloses a modular condensing gas-electric complementary inspection-free boiler system, including a boiler body 10 and a water inlet pipe 20. The boiler body 10 is provided with a condensing heating surface 4, an economizer heating surface 5, a low-temperature evaporation heating surface 6, a high-temperature evaporation heating surface 7 and a burner 9 in sequence from top to bottom. The water inlet pipe 20 is connected to the condensing heating surface 4, the condensing heating surface 4 is connected to the economizer heating surface 5, the economizer heating surface 5 is connected to the low-temperature evaporation heating surface 6, the low-temperature evaporation heating surface 6 is connected to the high-temperature evaporation heating surface 7, and the high-temperature evaporation heating surface 7 is connected to the gas-liquid separator 8;

[0049] The condensing heating surface 4 , the economizer heating surface 5 , the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 are all provided with electric heating components 21 .

[0050] Preferably, the water inlet pipeline 20 is connected to the water tank 2 , and a water pump 3 is provided on the water inlet pipeline 20 , and the water pump 3 is located between the water tank 2 and the condensation heating surface 4 .

[0051] Preferably, a bypass pipe is provided on the water inlet pipe 20, the inlet of the bypass pipe is located between the water pump 3 and the condensing heating surface 4, and the outlet of the bypass pipe is connected to the water tank 2. The bypass pipe is beneficial to increasing the safety of the water pump.

[0052] Preferably, the water tank 2 is connected to the softening water treatment equipment 1;

[0053] The water tank 2 is provided with a float valve 201, and the water level of the water tank is automatically controlled by the float valve 201 to ensure that the water level of the water tank is always at a safe water level.

[0054] Embodiment three:

[0055] See also Figure 1 The present embodiment discloses a modular condensing gas-electric complementary inspection-free boiler system, including a boiler body 10 and a water inlet pipe 20. The boiler body 10 is provided with a condensing heating surface 4, an economizer heating surface 5, a low-temperature evaporation heating surface 6, a high-temperature evaporation heating surface 7 and a burner 9 in sequence from top to bottom. The water inlet pipe 20 is connected to the condensing heating surface 4, the condensing heating surface 4 is connected to the economizer heating surface 5, the economizer heating surface 5 is connected to the low-temperature evaporation heating surface 6, the low-temperature evaporation heating surface 6 is connected to the high-temperature evaporation heating surface 7, and the high-temperature evaporation heating surface 7 is connected to the gas-liquid separator 8;

[0056] The condensing heating surface 4 , the economizer heating surface 5 , the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 are all provided with electric heating components 21 .

[0057] Preferably, see Figure 2 A plurality of heat exchange pipes 22 are provided in the heating surface. The heat exchange pipes 22 are connected to each other through a lower elbow 23 and an upper connecting pipe 24 to form a connecting heat exchange pipeline. The heat exchange pipes 22 are connected to the electric heating assembly 21 .

[0058] Preferably, a condensate discharge pipe 19 is provided on the boiler body 10, and the condensate discharge pipe 19 is located at the bottom of the condensation heating surface 4. The condensate discharge pipe 19 is used to recover the heat of the flue gas condensate water to improve the energy utilization rate.

[0059] Preferably, the boiler body 10 is provided with a tail flue 15, a flue gas damper valve 16 is provided in the tail flue 15, a flue bypass is provided on the tail flue 15, a bypass automatic regulating valve 17 is provided on the flue bypass, and the flue gas damper valve 16 is located between the two connecting ports of the flue bypass and the tail flue 15. When the burner 9 is turned off and only the electric heating component 21 is used for heating, the temperature of the residual air inside the boiler body increases due to the closed state of the furnace, which in turn causes the pressure inside the boiler body to increase. At this time, closing the flue gas damper valve 16 and using the bypass automatic regulating valve for air pressure regulation is conducive to reducing heat flow loss and ensuring the safe operation of the boiler body.

[0060] Preferably, the tail flue 15 is located at the top of the boiler body 10 , and the tail flue 15 is connected to the chimney 18 .

[0061] Embodiment 4:

[0062] See also Figure 1 This embodiment discloses a modular condensing gas-electric complementary inspection-free boiler system, including a softened water treatment device 1, which is connected to a water pump 3 through a water tank 2, and the water pump 3 is connected to a condensing heating surface 4, an economizer heating surface 5, a low-temperature evaporation heating surface 6, and a high-temperature evaporation heating surface 7 in sequence, and the high-temperature evaporation heating surface 7 is connected to a gas-liquid separator 8. The condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporation heating surface 6, and the high-temperature evaporation heating surface 7 are arranged in a boiler body 10. The burner 9 is connected to a tail flue 15 through the boiler body 10. The tail flue 15 is connected to a chimney 18. The system water volume is <30L, and user inspection is realized.

[0063] Preferably, the condensing heating surface 4 is provided with a condenser electric heater assembly 14, the economizer heating surface 5 is provided with an economizer electric heater assembly 13, the low-temperature evaporation heating surface 6 is provided with a low-temperature electric heater assembly 12, and the high-temperature evaporation heating surface 7 is provided with a high-temperature electric heater assembly 11. The output power of the electric heater assembly of each heating surface can be controlled individually, and the heat transfer of the heat exchange surface can be realized, thereby ensuring the stable operation of the entire system and preventing the pipe from bursting due to local high temperature.

[0064] Preferably, a flue gas damper valve 16 and a flue bypass are provided on the tail flue 15, and a bypass automatic regulating valve 17 is provided on the flue bypass. When all electric heater components are used, the furnace is in a closed state, which causes the temperature of the residual air inside the boiler body to rise, thereby causing the pressure inside the boiler body to rise. In order to reduce the heat flow loss and ensure the safe operation of the boiler body, the flue gas damper valve is closed and the bypass automatic regulating valve is used for regulation.

[0065] Preferably, a condensate discharge pipe 19 is left at the bottom of the condensation heating surface 4 to recover the heat of the flue gas condensate.

[0066] Preferably, the water pump 3 is connected in parallel with a bypass pipe, and the bypass pipe of the water pump 3 is connected to the water tank 2 to increase the safety of the water pump.

[0067] Preferably, the water tank 2 is provided with a float valve 201. The water tank is provided with a float valve to automatically control the water level of the water tank to ensure that the water level of the water tank is always at a safe water level.

[0068] Preferably, a sewage outlet is provided at the bottom of the gas-liquid separator 8 to reduce the salt concentration of the water in the system.

[0069] In summary, the present invention is a modular condensing gas-electricity complementary inspection-free boiler system, which uses natural gas as a coupled energy source and electric energy as a complementary energy source to realize a high-efficiency condensing inspection-free boiler heating technology.

[0070] Based on the above structure, the present invention discloses a method for using a modular condensing gas-electric complementary inspection-free boiler system, see Figure 3 , including the following steps:

[0071] S1. The water is input into a plurality of heating surfaces through the water inlet pipe 20;

[0072] S2. Gas heating mode: turn off the electric heating assembly 21, start the burner 9, and heat the water in several heating surfaces through the burner 9;

[0073] Electric heating mode: turn off the burner 9, start the electric heating component 21, and heat the water in the plurality of heating surfaces through the electric heating component 21;

[0074] Mixed heating mode: start the burner 9 and the electric heating component 21, and heat the water in several heating surfaces simultaneously through the burner 9 and the electric heating component 21;

[0075] S3. The high-temperature water vapor generated in the heating surface is separated by the gas-liquid separator 8.

[0076] The method of the present invention can give full play to its advantages within the inspection-free parameter range by providing three working modes, namely, gas heating mode, electric heating mode and mixed heating mode, and can achieve a larger evaporation amount. At the same time, when one heating mode fails, the other heating mode can still work, which can ensure continuous heating and improve the stability of the heating supply of the device.

[0077] Embodiment five:

[0078] See also Figure 1 This embodiment discloses a method for using a modular condensing gas-electricity complementary inspection-free boiler system, see Figure 3 , including the following steps:

[0079] S1. The water is input into the condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 through the water inlet pipe 20;

[0080] S2. Gas heating mode: turn off the electric heating assembly 21, start the burner 9, and heat the condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 through the burner 9;

[0081] Electric heating mode: turn off the burner 9, start the electric heating component 21, and heat the condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 through the electric heating component 21; adjust the working power of the high-temperature electric heater component 11, the low-temperature electric heater component 12, the economizer electric heater component 13 and the condenser electric heater component 14 through the power adjustment component to ensure real-time adjustment of the working power of each heater component to meet the dynamic demand for heating.

[0082] Mixed heating mode: start the burner 9 and the electric heating component 21, and heat the condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporation heating surface 6 and the high-temperature evaporation heating surface 7 simultaneously through the burner 9 and the electric heating component 21;

[0083] S3. The high-temperature water vapor generated in the condensing heating surface 4, the economizer heating surface 5, the low-temperature evaporating heating surface 6 and the high-temperature evaporating heating surface 7 is separated by the gas-liquid separator 8.

[0084] The present invention gives full play to its advantages within the inspection-free parameter range, achieves a larger evaporation capacity with a smaller size and weight, makes the installation and use of the equipment more convenient and quick, can ensure continuous heating, and improves the stability of the heating supply of the device.

[0085] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A modular condensing gas-electricity complementary inspection-free boiler system, characterized in that: The invention comprises a boiler body (10) and a water inlet pipe (20), wherein a plurality of heating surfaces are serially connected in sequence from top to bottom in the boiler body (10), the water inlet pipe (20) is connected to the topmost heating surface, and the bottommost heating surface is connected to a gas-liquid separator (8), and an electric heating component (21) is arranged on each of the plurality of heating surfaces. A burner (9) is arranged in the boiler body (10), and the burner (9) is located at the bottom of the plurality of heating surfaces.

2. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 1, characterized in that: The plurality of heating surfaces include a condensing heating surface (4), an economizer heating surface (5), a low-temperature evaporating heating surface (6) and a high-temperature evaporating heating surface (7); the condensing heating surface (4), the economizer heating surface (5), the low-temperature evaporating heating surface (6) and the high-temperature evaporating heating surface (7) are connected in series from top to bottom, the condensing heating surface (4) is connected to a water inlet pipeline (20), and the high-temperature evaporating heating surface (7) is connected to a gas-liquid separator (8); The condensing heating surface (4), the economizer heating surface (5), the low-temperature evaporation heating surface (6) and the high-temperature evaporation heating surface (7) are all provided with electric heating components (21).

3. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 2, characterized in that: The condensing heating surface (4) is provided with a condenser electric heater assembly (14), the economizer heating surface (5) is provided with an economizer electric heater assembly (13), the low-temperature evaporation heating surface (6) is provided with a low-temperature electric heater assembly (12), and the high-temperature evaporation heating surface (7) is provided with a high-temperature electric heater assembly (11); The high-temperature electric heater assembly (11), the low-temperature electric heater assembly (12), the economizer electric heater assembly (13) and the condenser electric heater assembly (14) are respectively provided with power adjustment components, and the power adjustment components are used to adjust the working power of the high-temperature electric heater assembly (11), the low-temperature electric heater assembly (12), the economizer electric heater assembly (13) and the condenser electric heater assembly (14).

4. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 1, characterized in that: The water inlet pipeline (20) is connected to the water tank (2), and a water pump (3) is provided on the water inlet pipeline (20). The water pump (3) is located between the water tank (2) and the condensation heating surface (4).

5. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 4, characterized in that: The water inlet pipeline (20) is provided with a bypass pipeline, the inlet of the bypass pipeline is located between the water pump (3) and the condensation heating surface (4), and the outlet of the bypass pipeline is connected to the water tank (2).

6. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 5, characterized in that: The water tank (2) is connected to the softening water treatment equipment (1); The water tank (2) is provided with a float valve (201).

7. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 1, characterized in that: The boiler body (10) is provided with a condensate discharge pipe (19), and the condensate discharge pipe (19) is located at the bottom of the condensation heating surface (4).

8. The modular condensing gas-electricity complementary inspection-free boiler system according to claim 1 is characterized in that: The boiler body (10) is provided with a tail flue (15), a smoke damper valve (16) is provided in the tail flue (15), a flue bypass is provided on the tail flue (15), a bypass automatic regulating valve (17) is provided on the flue bypass, and the smoke damper valve (16) is located between two connection ports of the flue bypass and the tail flue (15).

9. A modular condensing gas-electricity complementary inspection-free boiler system according to claim 8, characterized in that: The tail flue (15) is located at the top of the boiler body (10), and the tail flue (15) is connected to the chimney (18).

10. A method for using the modular condensing gas-electricity complementary inspection-free boiler system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Water is introduced into a plurality of heating surfaces through a water inlet pipe (20); Gas heating mode: turn off the electric heating component (21), start the burner (9), and heat the water in the plurality of heating surfaces through the burner (9); Electric heating mode: turn off the burner (9), start the electric heating component (21), and heat the water in the plurality of heating surfaces through the electric heating component (21); Mixed heating mode: starting the burner (9) and the electric heating component (21), and heating the water in several heating surfaces simultaneously through the burner (9) and the electric heating component (21); The high-temperature water vapor generated in the heating surface is separated by a gas-liquid separator (8).

Images