Burner smoke outlet far-end preheating device

Abstract

The utility model relates to the technical field of heat supply equipment, in particular to a burner smoke outlet far-end preheating device which comprises a burner, a fan and a tail pipe preheating device, the tail pipe preheating device comprises a preheating bin, an upper sealing plate, a lower sealing plate and a heat exchange pipe, the upper sealing plate and the lower sealing plate are arranged in the preheating bin in a vertically spaced mode, a plurality of upper mounting holes are formed in the upper sealing plate, and a plurality of lower mounting holes are formed in the lower sealing plate. A lower mounting hole is formed in the position, corresponding to each upper mounting hole, of the lower sealing plate, a heat exchange pipe is fixedly mounted between each upper mounting hole and the corresponding lower mounting hole, a smoke outlet is formed in the upper side of the preheating bin, and a smoke inlet is formed in the lower side of the preheating bin. The tail pipe preheating device is reasonable and compact in structure and convenient to use, and by arranging the tail pipe preheating device, air needed by combustion of the combustor is heated, and the smoke exhaust temperature is reduced; the multiple heat exchange pipes are arranged between the upper sealing plate and the lower sealing plate, so that low-temperature air entering the preheating bin through the air inlet is discharged from the air outlet after being subjected to sufficient heat exchange, and the heat exchanger has the advantages of being stable, reliable and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment and is a remote preheating device for smoke outlet of a burner. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and life, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. Among them, the boiler that can provide hot water is called a hot water boiler, which is mainly used for domestic water and domestic heating, and it is also used in a small amount in industrial production.

[0003] A wall-mounted boiler is the abbreviation of a gas wall-mounted boiler. Its full name is "gas wall-mounted heating boiler". It is a water heater that uses natural gas as energy. It and a gas instantaneous water heater are both rapid heating devices without hot water storage devices, but they are essentially different in structure. A gas wall-mounted boiler has a powerful family central heating function, which can meet the heating needs of multiple rooms. It can also take into account the hot water bathing function. The heating function of a gas wall-mounted boiler is affected by two factors: local climate conditions and the insulation condition of the building.

[0004] A Chinese patent document with announcement number CN202630410U discloses a high-efficiency and energy-saving hot blast furnace, which consists of a furnace body, a water tank, a heat collecting box, a furnace, an induced draft fan, a smoke exhaust fan and a heat dissipation box, and is characterized in that: a water tank is provided on the lower left side of the furnace body, a furnace is provided in the middle of the water tank, a coal adding port is provided on the left side of the water tank, a hot water outlet is provided on the front upper part of the water tank body, a circulating water inlet is provided on the rear side of the water tank, a cold water injection port is provided on the lower right part of the water tank, a pressure relief port is provided on the upper side of the water tank, a pressure relief pipe is installed on the pressure relief port, a first heat collecting box is provided on the upper end of the water tank, the first heat collecting box is composed of 2-20 rows of vertical hot air steel pipes, the lower pipe mouth of the hot air steel pipe is inlaid and welded in the top layer of the water tank, flush with the bottom of the inner wall of the top layer of the water tank, and the upper pipe mouth is inlaid and welded in the box body of the second heat collecting box, and the second heat collecting box is located at the first At the upper end of the 1st collector box, 3-25 rows of hot air pipes are arranged horizontally in the box body, and a dust removal port is provided at the front lower end of the box body. The 3rd collector box is provided on the right side of the 2nd collector box, and the 3rd collector box is arranged on the right side of the water tank and the 1st and 2nd collector boxes. The 3rd collector box is provided with a left collector chamber, a middle collector chamber, and a right collector chamber. The left collector chamber, the middle collector chamber, and the right collector chamber are respectively provided with 2-15 rows of collector tubes, which are arranged horizontally and inlaid and welded in the chamber walls on both sides of the left, middle and right collector chambers. A left guide plate is provided on the left side of the middle collector chamber, and a lower airflow splitter is provided on the bottom side of the left guide plate. A middle guide plate is provided on the left side of the right collector chamber, and an upper airflow splitter is provided on the upper side of the middle guide plate. A right guide plate is provided on the right side of the right collector chamber, and a lower airflow splitter is provided on the bottom side of the right guide plate. A 4th collector box is provided on the right side of the right guide plate.

[0005] A Chinese patent document with announcement number CN214120410U discloses an anti-condensation water structure for a wall-mounted boiler smoke exhaust pipe, characterized in that it includes an outer shell, a fire grate, a combustion chamber, a heat exchanger, an exhaust fan and a smoke exhaust pipe; the fire grate is arranged in the outer shell; the combustion chamber is covered with the fire grate; the heat exchanger is arranged in the outer shell and is located above the combustion chamber; the exhaust fan is arranged in the outer shell and is located above the heat exchanger; the smoke exhaust pipe is arranged on the side wall of the outer shell and corresponds to the exhaust fan; the smoke exhaust pipe has an inner tube and an outer tube, the outer tube is coaxially arranged with the inner tube, there is a gap between the inner side wall of the outer tube and the outer side wall of the inner tube, and the outer side wall of the inner tube is provided with a water receiving tray.

[0006] During the use of existing boilers and wall-mounted boilers, especially when the outdoor temperature is low in winter in the north, the outdoor air temperature is too low, and the cold air with low temperature is used for burner combustion, which will cause low thermal efficiency. Summary of the invention

[0007] The utility model provides a burner smoke remote preheating device, which overcomes the above-mentioned shortcomings of the prior art and can effectively solve the problem that the air required for combustion of the existing boiler and wall-mounted boiler burner is not preheated.

[0008] The technical scheme of the utility model is realized through the following measures: a burner smoke outlet remote preheating device comprises a burner, a fan and a tail pipe preheating device, the tail pipe preheating device comprises a preheating bin, an upper sealing plate, a lower sealing plate and a heat exchange tube, an upper sealing plate and a lower sealing plate are arranged at intervals in the preheating bin, a plurality of upper mounting holes are arranged on the upper sealing plate, a lower mounting hole is arranged on the lower sealing plate corresponding to the position of each upper mounting hole, a heat exchange tube is fixedly installed between the upper mounting holes and the lower mounting holes at every two corresponding positions, a smoke outlet is arranged on the upper side of the preheating bin, a smoke inlet is arranged on the lower side of the preheating bin, an air inlet is arranged on the outer side of the upper part of the preheating bin corresponding to the position below the upper sealing plate, and an air outlet is arranged on the outer side of the lower part of the preheating bin corresponding to the position above the lower sealing plate; the air outlet is connected to the air inlet of the fan through a preheating air pipeline, the air outlet of the fan is connected to the air inlet of the burner through an air pipeline, and the smoke outlet of the burner is connected to the smoke inlet through a smoke exhaust pipeline.

[0009] The following are further optimizations and / or improvements to the above utility model technical solution:

[0010] The above may also include a control module, a frequency converter, an exhaust gas detection device and an air flow detection device. The air pipeline is provided with an air flow detection device, the smoke exhaust pipeline is provided with an exhaust gas detection device, the frequency converter is connected to the fan, the control module is connected to the frequency converter, and the exhaust gas detection device and the air flow detection device are both connected to the control module.

[0011] The above may also include a multi-stage heat exchange device, and the smoke exhaust pipeline is provided with a multi-stage heat exchange device.

[0012] The above may also include a flue gas purifier, and a smoke outlet pipeline is provided on the upper side of the preheating chamber corresponding to the smoke outlet position, and a smoke outlet pipeline is provided on the smoke outlet pipeline.

[0013] The above may also include a heat-insulating layer, and a heat-insulating layer is arranged on the outside of the air pipeline.

[0014] The above-mentioned insulation layer can be glass wool or composite silicate or rock wool or aluminum silicate wool.

[0015] The utility model has a reasonable and compact structure and is easy to use. By arranging a tail pipe preheating device, the air required for burner combustion is heated and the exhaust temperature is reduced. By arranging a plurality of heat exchange tubes between the upper sealing plate and the lower sealing plate, the low-temperature air entering the preheating chamber through the air inlet is fully heat-exchanged and then discharged from the air outlet. The utility model has the characteristics of stability, reliability and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 This is a process flow chart of embodiments 1 to 6 of the present invention.

[0017] Attached Figure 2 For attachment Figure 1Schematic diagram of the front cross-sectional structure of the mid-tail pipe preheating device.

[0018] Attached Figure 3 For attachment Figure 1 Control block diagram.

[0019] The codes in the accompanying drawings are: 1 for burner, 2 for fan, 3 for preheating chamber, 4 for upper sealing plate, 5 for lower sealing plate, 6 for heat exchange tube, 7 for air pipeline, 8 for preheating air pipeline, 9 for smoke exhaust pipeline, 10 for control module, 11 for frequency converter, 12 for exhaust gas detection device, 13 for wind flow detection device, 14 for multi-stage heat exchange device, 15 for flue gas purifier, and 16 for smoke outlet pipeline. DETAILED DESCRIPTION

[0020] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0021] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0022] The present invention is further described below in conjunction with the embodiments and drawings:

[0023] Embodiment 1: As attached Figure 1 , 2 As shown in Figure 3, the burner smoke outlet remote preheating device comprises a burner 1, a fan 2 and a tail pipe preheating device, the tail pipe preheating device comprises a preheating chamber 3, an upper sealing plate 4, a lower sealing plate 5 and a heat exchange tube 6, the preheating chamber 3 is provided with an upper sealing plate 4 and a lower sealing plate 5 at intervals from top to bottom, the upper sealing plate 4 is provided with a plurality of upper mounting holes, the lower sealing plate 5 corresponding to each upper mounting hole position is provided with a lower mounting hole, and a heat exchange tube 6 is fixedly installed between the upper mounting holes and the lower mounting holes at every two corresponding positions, the preheating chamber 3 is provided with an upper sealing plate 4 and a lower sealing plate 5, and the upper sealing plate 4 is provided with a plurality of upper mounting holes, and the lower sealing plate 5 corresponding to each upper mounting hole position is provided with a lower mounting hole, and the upper mounting hole and the lower mounting hole are fixedly installed with a heat exchange tube 6, and the preheating chamber 3 is provided with an upper sealing plate 4 and a lower sealing plate 5. A flue gas outlet is provided on the upper side of the bin 3, a flue gas inlet is provided on the lower side of the preheating bin 3, an air inlet is provided on the outer side of the upper part of the preheating bin 3 corresponding to the position below the upper sealing plate 4, and an air outlet is provided on the outer side of the lower part of the preheating bin 3 corresponding to the position above the lower sealing plate 5; the air outlet is connected to the air inlet of the fan 2 through a preheating air pipeline 8, the air outlet of the fan 2 is connected to the air inlet of the burner 1 through an air pipeline 7, and the smoke outlet of the burner 1 is connected to the flue gas inlet through a smoke exhaust pipeline 9. During use, by setting a tail pipe preheating device, the air required for the combustion of the burner 1 is heated and the exhaust temperature is reduced, thereby improving the thermal efficiency of the boiler; by setting a plurality of heat exchange tubes 6 between the upper sealing plate 4 and the lower sealing plate 5, the low-temperature air entering the preheating bin 3 through the air inlet is fully heat-exchanged and then discharged from the air outlet.

[0024] The above-mentioned burner smoke outlet remote preheating device can be further optimized and / or improved according to actual needs:

[0025] Embodiment 2: As attached Figure 1 , 2 , 3, also includes a control module 10, a frequency converter 11, an exhaust gas detection device 12 and a wind flow detection device 13, the air pipeline 7 is provided with a wind flow detection device 13, the exhaust pipeline 9 is provided with a tail gas detection device 12, the frequency converter 11 is connected to the fan 2, the control module 10 is connected to the frequency converter 11, and the tail gas detection device 12 and the wind flow detection device 13 are both connected to the control module 10. During use, by setting the wind flow detection device 13, the control module 10 and the frequency converter 11, the air volume of the fan 2 is controlled to meet different gas and air ratios for the burner 1 to burn; by setting the tail gas detection device 12, the gas content of the tail gas is detected, so as to adjust the ratio of gas and air so that the gas can be fully burned. According to the demand, the control module 10 is an existing known technology, which can be a PLC, and its specific model can be Siemens S7-200 SMART; the wind flow detection device 13 is an existing known technology, and its model can be SUP-MF-DN65.

[0026] Embodiment 3: As attached Figure 1 , 2 3, it also includes a multi-stage heat exchange device 14, and the multi-stage heat exchange device 14 is provided on the smoke exhaust pipeline 9. During use, the heat generated by combustion is exchanged by setting the multi-stage heat exchange device 14, so that the hot water after heat exchange is applied to the existing well-known heating system or domestic hot water.

[0027] Embodiment 4: As attached Figure 1 , 2 3, it also includes a flue gas purifier 15, and a flue gas outlet pipeline 16 is provided on the upper side of the preheating chamber 3 corresponding to the flue gas outlet position, and a flue gas purifier 15 is provided on the flue gas outlet pipeline 16. During use, by providing the flue gas purifier 15, the flue gas at the exhaust end is purified, and the content of gases such as carbon monoxide in the exhaust gas is reduced to meet the environmental protection standards.

[0028] Embodiment 5: As attached Figure 1 , 2 3, it also includes a heat preservation layer, and a heat preservation layer is arranged on the outside of the air pipeline 7. During use, through such an arrangement, the preheated air in the air pipeline 7 is kept warm to avoid heat waste.

[0029] Embodiment 6: As attached Figure 1 , 2 As shown in 3, the insulation layer is glass wool or composite silicate or rock wool or aluminum silicate wool. In use, such a setting has a better insulation effect.

[0030] The above technical features respectively constitute various embodiments of the present utility model, which have strong adaptability and implementation effect, and non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A remote preheating device for burner smoke, characterized in that It includes a burner, a fan and a tail pipe preheating device, which includes a preheating bin, an upper sealing plate, a lower sealing plate and a heat exchange tube. An upper sealing plate and a lower sealing plate are provided at upper and lower intervals in the preheating bin, and a plurality of upper mounting holes are provided on the upper sealing plate. A lower mounting hole is provided on the lower sealing plate corresponding to the position of each upper mounting hole, and a heat exchange tube is fixedly installed between the upper mounting holes and the lower mounting holes at every two corresponding positions. A flue gas outlet is provided on the upper side of the preheating bin, and a flue gas inlet is provided on the lower side of the preheating bin. An air inlet is provided on the outer side of the upper part of the preheating bin corresponding to the position below the upper sealing plate, and an air outlet is provided on the outer side of the lower part of the preheating bin corresponding to the position above the lower sealing plate; the air outlet is connected to the air inlet of the fan through a preheating air pipeline, the air outlet of the fan is connected to the air inlet of the burner through an air pipeline, and the smoke outlet of the burner is connected to the smoke inlet through a smoke exhaust pipeline.

2. The burner smoke remote preheating device according to claim 1, characterized in that It also includes a control module, a frequency converter, an exhaust gas detection device and an air flow detection device. The air pipeline is provided with an air flow detection device, the smoke exhaust pipeline is provided with an exhaust gas detection device, the frequency converter is connected to the fan, the control module is connected to the frequency converter, and the exhaust gas detection device and the air flow detection device are both connected to the control module.

3. The burner smoke remote preheating device according to claim 1 or 2, characterized in that It also includes a multi-stage heat exchange device, and the smoke exhaust pipeline is equipped with a multi-stage heat exchange device.

4. The burner smoke remote preheating device according to claim 1 or 2, characterized in that It also includes a flue gas purifier. A smoke outlet pipeline is provided on the upper side of the preheating bin corresponding to the smoke outlet position, and the smoke outlet pipeline is provided with a flue gas purifier.

5. The burner smoke remote preheating device according to claim 3, characterized in that It also includes a flue gas purifier. A smoke outlet pipeline is provided on the upper side of the preheating bin corresponding to the smoke outlet position, and the smoke outlet pipeline is provided with a flue gas purifier.

6. The burner smoke remote preheating device according to claim 1, 2 or 5, characterized in that It also includes a thermal insulation layer, and the thermal insulation layer is arranged on the outside of the air pipeline.

7. The burner smoke remote preheating device according to claim 4, characterized in that It also includes a thermal insulation layer, and the thermal insulation layer is arranged on the outside of the air pipeline.

8. The burner smoke remote preheating device according to claim 5, characterized in that It also includes a thermal insulation layer, and the thermal insulation layer is arranged on the outside of the air pipeline.

9. The burner smoke remote preheating device according to claim 6, characterized in that The thermal insulation layer is glass wool or composite silicate or rock wool or aluminum silicate wool.

10. The burner smoke remote preheating device according to claim 7 or 8, characterized in that The thermal insulation layer is glass wool or composite silicate or rock wool or aluminum silicate wool.

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