CN214307206U

CN214307206U - Hot blast stove with oven

Info

Publication number: CN214307206U
Application number: CN202022915577.9U
Authority: CN
Inventors: 张守政; 冯震; 潘振龙
Original assignee: Gansu Huaqing New Energy Bio Technology Co ltd
Current assignee: Gansu Huaqing New Energy Bio Technology Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-28
Anticipated expiration: 2030-12-08

Abstract

The application relates to a hot blast stove with an oven, which comprises a hearth (707), an oven (709), a hot blast cavity and a flue pipe (706); the oven comprises an oven liner (70904), a heating cavity, a smoke inlet (70901), a smoke outlet (70902) and a warm air outlet pipe (70903); the flue gas inlet is arranged at the bottom of the heating cavity and communicated with the hearth, the flue gas outlet is arranged at the top of the heating cavity and communicated with the upper end of the flue pipe, and the warm air outlet pipe transversely penetrates through the heating cavity and is uniformly distributed in the heating cavity, and the rear end of the warm air outlet pipe is communicated with the upper part of the warm air cavity. The oven has the advantages that the oven has a good heating effect through the double heating effects of the warm air and the smoke; the heating effect of the oven is enhanced by additionally arranging the first heat exchange assembly (708); the output temperature of the warm air is improved by additionally arranging a preheating pipe (701), a cross-flow fan (9) and a second heat exchange assembly (703); the air humidification function is integrated by adding the water tank (16).

Description

Hot blast stove with oven

Technical Field

The application relates to the technical field of machinery, in particular to a hot blast stove with an oven.

Background

In recent years, the biomass technology is rapidly developed, and biomass hot blast stoves are applied to various industries. The traditional biomass hot blast stove has single use and low heat energy utilization rate, so that a boiler integrating the functions of hot water, cooking, an oven and the like on the hot blast stove is produced. However, the existing hot blast stove with an oven has poor heating effect of the oven or poor warm air effect.

Disclosure of Invention

The technical problem that this application will be solved provides a take hot-blast furnace of oven of improving oven heating effect.

In order to solve the problems, the application provides the hot blast stove with the oven, which comprises a hearth, the oven arranged at the top of the hearth, a hot blast cavity arranged at the side of the hearth, and a flue pipe longitudinally arranged inside the hot blast cavity, wherein an air inlet of the hot blast cavity and an exhaust port of the flue pipe are respectively positioned at the lower parts of the hot blast cavity and the flue pipe; the oven comprises an oven inner container, a heating cavity, a smoke inlet, a smoke outlet and a warm air outlet pipe, wherein the heating cavity is arranged around the side of the oven inner container; flue gas inlet establishes heating cavity's bottom and with the furnace intercommunication, the exhanst gas outlet is established heating cavity's top lateral wall and with the upper end intercommunication of flue pipe, the warm braw goes out the tuber pipe and is in heating cavity is internal along transversely running through the equipartition and its rear end with the upper portion intercommunication of warm braw cavity.

Preferably, the flue gas inlet has downwardly extending's the flue gas pipeline of advancing, the bottom of heating cavity is equipped with first heat exchange assemblies, first heat exchange assemblies arranges in the warm braw cavity, it has on vertical the confession advance the passageway that the flue gas pipeline passed, transversely have the rear end with the warm braw air outlet channel of the upper portion intercommunication of warm braw cavity.

Preferably, a preheating pipe and a cross-flow fan are arranged at an air inlet of the warm air cavity, and are both arranged in the furnace body shell; the lower end of the flue pipe is provided with a smoke box; the preheating pipe penetrates through the smoke box, two ends of the preheating pipe are opened, one end of the preheating pipe is communicated with the outside, the other end of the preheating pipe is arranged on the drainage side of the cross-flow fan, and the outflow side of the cross-flow fan is communicated with the warm air cavity.

Preferably, a second heat exchange assembly is arranged between the outflow side of the cross-flow fan and the warm air cavity, and a smoke box is arranged at the lower end of the smoke channel pipe; the second heat exchange assembly is connected with the smoke box and used for transferring the high temperature of the smoke collected from the smoke box to the airflow entering the warm air cavity.

Preferably, the oven further comprises a water tank arranged at the top of the oven and used for realizing air humidification.

Compared with the prior art, the method has the following advantages:

in this application, the heating internal warm braw that is equipped with of oven goes out tuber pipe and flue gas passageway, makes the oven have better heating effect through the dual heating effect of warm braw and flue gas to the oven inner bag.

The first heat exchange assembly is additionally arranged at the bottom of the heating cavity, so that the heating effect on the inner container of the oven is further enhanced; through set up preheating tube and cross-flow fan (cross-flow fan establishes in furnace body shell) in the air intake department of warm braw cavity to and second heat exchange assembly, preheat it, improve its temperature before the air current gets into the warm braw cavity, compare on the one hand and directly input the warm braw cavity with external cold air, effectively utilize the heat that the flue gas carried to improve the output temperature of warm braw, on the other hand is used for the air current with the heat and preheats and can cool down furnace courage relevant position. In addition, this application has still integrated the air humidifying function through set up the basin at the oven top.

Drawings

The following describes embodiments of the present application in further detail with reference to the accompanying drawings.

Fig. 1 is a side sectional view of a hot blast stove with an oven provided in an embodiment of the present application.

Fig. 2 is a side view of a furnace assembly provided in an embodiment of the present application.

Fig. 3 is a sectional view a-a in fig. 2.

Figure 4 is an isometric view of an oven provided by an embodiment of the present application.

Fig. 5 is an axonometric view of a first heat exchange assembly provided by an embodiment of the present application.

Fig. 6 is an isometric view of a second heat exchange assembly provided by an embodiment of the present application.

In the figure: 1-base, 2-shell, 3-top cover, 4-PLC operation panel, 5-bin, 6-feeding mechanism, 601-oxygen supply blast pipe, 7-furnace container combination, 8-smoke exhaust fan, 9-cross flow fan, 10-ash bin, 11-window door combination, 12-air outlet louver, 13-tray, 14-oven door, 15-heat insulation board and 16-water tank. 1101-cold air inlet holes, 1102-sealing packing, 1103-door handles and 1104-high temperature resistant glass.

701-a preheating pipe, 702-a flue pipe lower fixing plate, 703-a second heat exchange assembly, 704-a cold air total air inlet, 705-a smoke outlet combination, 706-a flue pipe, 707-a hearth, 708-a first heat exchange assembly, 709-an oven, 710-a top ash removal cover, 711-a bottom ash removal cover, 712-a first smoke box top plate, 713-a diversion channel and 714-a second smoke box bottom plate; 70901 flue gas inlet, 70902 flue gas outlet, 70903 warm air outlet pipe, 70904 oven inner container.

Detailed Description

Referring to fig. 1 to 6, the embodiment of the present application provides a hot blast stove with an oven, which mainly includes a bin 5, a feeding mechanism 6 arranged at the bottom of the bin 5 in a two-stage manner, and a furnace combination 7 related to combustion, smoke exhaust and warm air and provided with an oven 709. The hot-blast furnace of this application area oven has further still integrateed the air humidifying function: a water tank 16 is arranged between the top of the oven 709 and the top cover 3, an access door is arranged at the top of the water tank 16 and used for adding water and maintaining ash, and when the oven is ignited, the temperature at the top of the oven 709 is high, water is evaporated to the atmosphere, and the air quality is improved.

In this application, the furnace combination 7 includes a furnace 707, an oven 709 arranged at the top of the furnace 707, a warm air cavity arranged at the side of the furnace 707, and a flue pipe 706 arranged inside the warm air cavity along the longitudinal direction, wherein the air inlet of the warm air cavity and the smoke outlet of the flue pipe 706 are both located at the lower part of each other. A heat insulation plate 15 is arranged between the hearth 707 and the feeding mechanism 6, a burner, an ignition rod and an ash bin 10 positioned below the burner are arranged in the hearth 707, and the oxygen supply blast pipe 601 supplies oxygen for the combustion of fuel in the burner.

The oven 709 in the oven liner combination 7 comprises an oven liner 70904, a heating cavity which is arranged around the side of the oven liner 70904, a flue gas inlet 70901, a flue gas outlet 70902 and a warm air outlet pipe 70903; the flue gas inlet 70901 is arranged at the bottom of the heating cavity and communicated with the hearth, the flue gas outlet 70902 is arranged on the side wall of the top of the heating cavity and communicated with the upper end of the flue pipe 706, the warm air outlet pipes 70903 transversely penetrate and are uniformly distributed in the heating cavity, the rear ends of the warm air outlet pipes are communicated with the upper part of the warm air cavity, and the front ends of the warm air outlet pipes are used as first warm air outlets.

In order to further enhance the heating effect of the oven 709, the flue gas inlet 70901 of the oven 709 is provided with a flue gas inlet pipeline extending downwards, the bottom of the heating cavity is provided with a first heat exchange assembly 708, the first heat exchange assembly 708 is arranged in the warm air cavity, referring to fig. 5, the flue gas inlet pipeline is provided with a channel passing through the flue gas inlet pipeline in the longitudinal direction, the hot air outlet channel is provided with a rear end in the transverse direction, the rear end of the hot air outlet channel is communicated with the upper part of the warm air cavity, and the front end of the hot air outlet channel is used as a second warm air outlet.

When the air conditioner works, when the air flow from the lower part of the warm air cavity to the upper part passes through the first heat exchange assembly 708, a part of the air flows out from the second warm air outlet through the warm air outlet channel in the first heat exchange assembly 708, and a part of the air continues to flow into the warm air heating pipe 70903 of the oven 709 to flow out from the first warm air outlet. Air outlet shutters 12 are arranged at the first and second warm air outlets and used for adjusting an air outlet angle.

The lower end of the flue pipe 706 is provided with a smoke box (comprising a first smoke box, a second smoke box and a diversion channel 713): the lower ends of the flue pipes 706 are collectively arranged on a flue pipe lower fixing plate 702, the bottom of the flue pipe lower fixing plate 702 is provided with a first flue box communicated with all the flue pipes 706 at the left side and the right side, and a first flue box top plate 712 and the flue pipe lower fixing plate 702 can be the same plate; the middle of the top of the first smoke box is provided with a flow guide channel 713 which extends upwards for a certain distance, the top of the flow guide channel 713 is provided with a second smoke box, the front section (the air outlet direction of the warm air is front) of the second smoke box is positioned below the ash bin 10, the rear section extends backwards to exceed the cavity wall of the warm air cavity, and the tail end of the rear section is provided with a smoke exhaust fan 8.

During operation, high-temperature flue gas generated in the furnace 707 flows upwards, enters the upper end of the flue pipe 706 through the flue gas inlet 70901, the heating cavity and the flue gas outlet 70902, then flows downwards through the flue pipe 706 to enter the first smoke box, and finally is discharged through the smoke exhaust fan 8 through the diversion channel 713, the front section of the second smoke box and the rear section of the second smoke box.

In order to enhance the warm air effect, a preheating pipe 701 and a cross flow fan 9 are arranged at an air inlet of the warm air cavity, and are arranged in the furnace body shell; the preheating pipe 701 penetrates through the first smoke box from front to back, two ends of the preheating pipe are opened, one end of the preheating pipe is communicated with the outside, the other end of the preheating pipe is arranged on the drainage side of the cross-flow fan 9, and the outflow side of the cross-flow fan 9 is communicated with the warm air cavity through the cold air main air inlet 704.

In order to further enhance the warm air effect, a second heat exchange component 703 is arranged between the outflow side of the cross flow fan 9 and the air inlet of the warm air cavity, and the second heat exchange component 703 is connected with the smoke box (specifically, the bottom of the second heat exchange component 703 is connected with a top plate 712 of the first smoke box, the top of the second heat exchange component is connected with a bottom plate 714 of the second smoke box, the rear part is a cold air main air inlet 704, and the front part is the air inlet of the warm air cavity) and is used for transmitting the high temperature of the smoke collected from the smoke box to the air flow which is about to enter the warm air cavity. Referring to fig. 6, the second heat exchange assembly 703 is an aluminum bent heat exchange plate.

When the preheating device works, when cold ambient air passes through the preheating pipe 701, the ambient air is preheated for the first time by using heat absorbed by the preheating pipe 701 from smoke in the first smoke box; the primary preheated environmental air is extracted by the cross flow fan 9, and is sent into the cold air main air inlet 704 together with other air flows extracted by the cross flow fan 9, and then the air flows are secondarily preheated by the heat absorbed by the second heat exchange assembly 703 from the smoke box and then enter the warm air cavity to flow upwards.

In practical applications, the toaster 709 further comprises a tray 13 (heat insulation) disposed within the toaster case 70904 and a toaster door 14 disposed at a front end of the toaster case 70904. The furnace body main structure also comprises a base 1, a shell 2 (for opening holes in different areas according to the temperature of the inner container combination 7), a top cover 3, a PLC operation panel 4 and a window door combination 11 arranged on the front side of the furnace body. The window and door assembly 11 is provided with a cold air inlet 1101 (corresponding to the air inlet end of the preheating pipe 701 communicated with the outside), a sealing packing 1102, a door handle 1103 and a high temperature resistant glass 1104 for observing the flame combustion condition and giving a visual feeling of burning and warming.

The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the structure and the core concept of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The hot blast stove with the oven is characterized by comprising a hearth (707), the oven (709) arranged at the top of the hearth (707), a hot blast cavity arranged at the side of the hearth (707), and a flue pipe (706) arranged in the hot blast cavity along the longitudinal direction, wherein an air inlet of the hot blast cavity and a smoke outlet of the flue pipe (706) are respectively positioned at the lower parts of the hot blast cavity and the flue pipe; the oven (709) comprises an oven inner container (70904), a heating cavity which is arranged around the side of the oven inner container (70904), a smoke inlet (70901), a smoke outlet (70902) and a warm air outlet pipe (70903); the flue gas inlet (70901) is arranged at the bottom of the heating cavity and communicated with the hearth, the flue gas outlet (70902) is arranged on the side wall of the top of the heating cavity and communicated with the upper end of the flue pipe (706), and the warm air outlet pipes (70903) transversely penetrate through the heating cavity and are uniformly distributed in the heating cavity, and the rear ends of the warm air outlet pipes are communicated with the upper part of the warm air cavity.

2. The hot blast stove with an oven of claim 1, characterized in that the flue gas inlet (70901) is provided with a flue gas inlet pipe extending downwards, the bottom of the heating cavity is provided with a first heat exchange assembly (708), the first heat exchange assembly (708) is arranged in the hot blast cavity, and the first heat exchange assembly is provided with a channel for the flue gas inlet pipe to pass through in the longitudinal direction and a hot blast air outlet channel communicated with the upper part of the hot blast cavity at the rear end in the transverse direction.

3. The hot-blast stove with an oven of claim 1, characterized in that the air inlet of the hot-blast cavity is provided with a preheating pipe (701) and a cross-flow fan (9), both arranged in the stove body housing; the lower end of the flue pipe (706) is provided with a smoke box; the preheating pipe (701) penetrates through the smoke box, two ends of the preheating pipe are opened, one end of the preheating pipe is communicated with the outside, the other end of the preheating pipe is arranged on the drainage side of the cross-flow fan (9), and the outflow side of the cross-flow fan (9) is communicated with the warm air cavity.

4. The hot blast stove with an oven according to claim 3, characterized in that a second heat exchange assembly (703) is provided between the outflow side of the cross flow fan (9) and the warm air cavity, and a smoke box is provided at the lower end of the flue pipe (706); the second heat exchange assembly (703) is connected with the smoke box and used for transferring the high temperature of the smoke collected from the smoke box to the airflow entering the warm air cavity.

5. The hot blast stove with an oven of claim 1, further comprising a sink (16) provided at the top of the oven (709) for achieving air humidification.