CN1800740A

CN1800740A - Oil-fired/gas-fired jet-radiation heat pipe hot-air furnace

Info

Publication number: CN1800740A
Application number: CNA2005100066141A
Authority: CN
Inventors: 朱友良; 凌峰
Original assignee: WUJIANG PUTIAN INSTITUTE OF GENERALIZED APPLICATION OF HEAT PIPE TECHNOLOGY
Current assignee: WUJIANG PUTIAN INSTITUTE OF GENERALIZED APPLICATION OF HEAT PIPE TECHNOLOGY
Priority date: 2005-01-06
Filing date: 2005-01-06
Publication date: 2006-07-12

Abstract

The invention relates to a high-efficiency high-temperature air heater as fuel oil (gas) ejection-irradiation wind heater which is formed by an ejection-irradiation heat exchanger and a heat pipe exchanger in series. Wherein, the irradiation plate on the burning hearth of ejection-irradiation heat exchanger is welded on the pipe plate of heat pip exchanger, while their lower two side plates and the bottom plate are connected; the tail of smoke channel is the smoke discharge pipe; the heat pipe exchanger via pipe plate is divided into the upper part of heat pipe heat air generation room and the lower part as the smoke channel with heat pipe heat absorption section; the heat pipe heat absorption section can absorb and vaporize the heat, and the working material will transfer the heat to the heat pip wing-plate heat emission section in the heat air generation room with super-sound. The airflow entering from the wind inlet first absorb the heat of hearth, smoke channel and the rib heat emission plate to enter the heat air generation room to absorb the condensation heat released by the heat pip wing-plate heat emission section, then the air is heated to 200Deg. C to enter the air collection room and impact the irradiation plate and its heat emission ribs from the ejection room with high speed to generate the high-temperature air in 400-500Deg. C. and the air via high-temperature wind outlet of ejection room is fed into the high-temperature inlet to working position. It arranges a temperature sensor on the heat wind outlet pipeline to be linked with the temperature controller, burner and fan in the self-control box to realize automation.

Description

Fuel oil (gas) jet flow-radiant heat pipe hot-air furnace

The invention belongs to novel and high-efficiency and prepare the heat-pipe apparatus of clean hot air.

The hot-blast stove that present domestic and international application directly prepares hot-air is the shell and tube hot-blast stove, one of high-temperature flue gas and heated air are walked outside the pipe, walk in the pipe for one, because tube sheet is inconsistent with the tubulation thermal (temperature difference) stress, cause tube sheet cracking or tubulation wearing and tearing perforation, easily cause two gas to connect, simultaneously because at the bottom of gas-gas coefficient of heat transfer, cause volume big and steel quantity consumption is big, heat exchange efficiency is low.Fuel oil (gas) heat pipe hot-blast stove of Wujiang general day hot pipe technique promotion applied research gas invention adopts the super heat-conductive pipe phase-change heat-exchange, the thermal efficiency reaches 85%, all disadvantages of shell and tube hot-blast stove have been avoided simultaneously, obtain the welcome in market, but also there is the burner hearth adiabatic combustion, the problem that the hyperthermia radiation heat energy utilization is not enough.

The purpose of this invention is to provide a kind of hot-air that adopts heat exchange of heat pipe superconducting phase conversion hot preparation footpath jet flow-radiation recuperator impingement heat transfer again, absorb the novel hot-blast stove of burner hearth hyperthermia radiation heat.

Fuel oil of the present invention (gas) jet flow-radiant heat pipe hot-air furnace is composed in series by jet flow-radiation recuperator (1) and heat exchange of heat pipe (2), jet flow-radiation recuperator (1) by burner hearth (3) and above be welded with the acclivitous radiant panel in rear portion (4), the flue (5) of same respectively heat exchange of heat pipe (2) and tube sheet (6) sealing assembly welding, flue (5) afterbody is that smoke exhaust pipe (7) is formed combustion system; Be welded with bar shaped radiated rib (8) at burner hearth (3) and flue (5) outer wall, it is flue (5) that heat exchange of heat pipe (2) is separated into the bottom by tube sheet, top is hot-air generation chamber (9), heat pipe (10) endotherm section stretches into tube sheet (6) underflue (5), heat pipe (10) fin heat release section places tube sheet (6) top hot-air generation chamber (9), tube sheet (6) is anterior with conical spray chamber (11) seal welding, hot-air generation chamber (9) is extended bending and is welded into collection chamber (12) with jet flow chamber (11) front sealing, on radiant panel (4) face, be welded with bar shaped heat release fin (13), high-temperature hot-air outlet (14) is arranged below conical spray chamber (11) are preceding, communicate with the air-vent that is installed in the blower fan (16) on burner hearth (3) the front upper part fixed head (15); At radiant panel (4) and tube sheet (6) bottom is lower air duct (17), the pipe connecting flange (19) that install combustion device (18) are arranged on burner hearth (3) front panel, air entering and returning mouth (20) is arranged in its underpart, and whole hot-blast stove is by the fixing assembling of chan frame (21), rock wool heat-preservation thin plate outsourcing (22).

During the invention process, connect power supply and oil (gas) and advance return pipe road valve, starting is from control cabinet (23) fan (16) and burner (18) switch, the calory burning of burner (18), burned burner hearth (3), the biside plate of flue (5), base plate absorbs heat and absorbed latent heat of vaporization heat by heat pipe (10) endotherm section in flue (5), the interior working medium of heat pipe (10) is transported to the latent heat of vaporization heat pipe (10) the fin heat release section that places hot-air generation chamber (9) with the speed of Ultrasonic wave like speed, under the airflow scouring that enters lower air duct (17) absorption burner hearth (3) and flue (5) and bar shaped radiated rib (13) heat by air entering and returning mouth (20), discharge latent heat of condensation Fast Heating air, the hot-air of higher temperature enters collection chamber (12) from hot-air generation chamber (9), spray impinging radiation plate (4) heat-transfer surface at a high speed from top, jet flow chamber (11) spout and carry out the impinging radiation heat exchange, produce high-temperature hot air, high-temperature hot-air outlet (14) below jet flow chamber (11) are preceding enters the air-vent of blower fan (16), deliver to the technology occasion of using hot-air by blower fan (16) and use, useless flue gas is discharged by smoke exhaust pipe (7).

Figure one of the present invention is fuel oil (gas) jet flow-radiant heat pipe hot-air furnace structural representation

Figure two of the present invention is fuel oil (gas) jet flow-radiant heat pipe hot-air furnace A-A cutaway view

Fuel oil of the present invention (gas) jet flow-radiant heat pipe hot-air furnace comprises: 1 is jet flow-radiation recuperator, and 2 is heat exchange of heat pipe, and 3 is burner hearth, 4 is radiant panel, and 5 is flue, and 6 is tube sheet, 7 is smoke exhaust pipe, and 8 are the bar shaped radiated rib, and 9 is the hot-air generation chamber, 10 is heat pipe, 11 is the jet flow chamber, and 12 is collection chamber, and 13 are bar shaped heat release fin, 14 are the high-temperature hot-air outlet, 15 is fixed head, and 16 is blower fan, and 17 is lower air duct, 18 is burner, 19 is pipe connecting flange, and 20 are the air entering and returning mouth, and 21 is framework, 22 are the insulation outsourcing, and 23 are the automatic control case.

Burner hearth of the present invention (3), radiant panel (4), flue (5), tube sheet (6), smoke exhaust pipe (7), bar shaped radiated rib (8), hot-air generation chamber (9), jet flow chamber (11), collection chamber (12), heat release fin (13), high-temperature hot-air export (14), fixed head (15), lower air duct (17), pipe connecting flange (19), air entering and returning mouth (20), make of steel plate, heat pipe (10) is made of seamless pipe, framework (21) is made of channel-section steel, insulation outsourcing (22) is made of the rock wool color steel, and blower fan (16), burner (18), automatic control case (23) are outsourcing piece.

The present invention is the temperature controller in mounting temperature sensor and the automatic control case on blower fan (16) hot-blast pipe line, and same burner (18), blower fan (16) interlocking are carried out fully automatic operation.

Claims

1, a kind of fuel oil (gas) jet flow-radiant heat pipe hot-air furnace, it is characterized in that by the burner hearth of the jet flow-radiation recuperator of front portion and above radiant panel be in together in the lower air duct with the flue of the heat exchange of heat pipe at its rear portion and the tube sheet series connection assembly welding on top respectively, the hot-air generation chamber extension on tube sheet top is shrunk to collection chamber, place radiant panel top together with following jet flow chamber, burner hearth front panel flange is taken over the install combustion device, on its top tie plate blower fan is installed, its preceding downside has the air entering and returning mouth to take over the hot-blast stove of the generation higher temperature hot blast of being combined into one.

2, by the described fuel oil of claim 1 (gas) jet flow-radiant heat pipe hot-air furnace, it is characterized in that jet flow-radiation recuperator is by burner hearth and top radiant panel thereof, on the biside plate of burner hearth, base plate, be welded with spacing and be 30-200mm, highly be the bar shaped radiated rib of 30-80mm, can be welded with spacing on the radiant panel and be 30-100mm, highly be the bar shaped heat release fin of 40-100mm, or radiant panel is with dull and stereotyped.

3, by the described fuel oil of claim 1 (gas) jet flow-radiant heat pipe hot-air furnace, it is characterized in that it is the hot-air generation chamber that heat exchange of heat pipe is separated into top by tube sheet, the bottom is a flue; Heat pipe heat-absorbing section stretches into flue below the tube sheet, and the heat pipe heat release section places the hot-air generation chamber, and the flue afterbody is a smoke exhaust pipe.

4, by the described fuel oil of claim 1 (gas) jet flow-radiant heat pipe hot-air furnace, it is characterized in that anterior extension of heat pipe hot-air generation chamber is shrunk to collection chamber, tilting forward from the tube sheet front portion places the conical spray chamber that is above the radiant panel, downside is the high-temperature hot-air outlet before the jet flow chamber.

5, by the described fuel oil of claim 1 (gas) jet flow-radiant heat pipe hot-air furnace, it is characterized in that on burner hearth front upper part fixed head air-introduced machine being installed, the air-introduced machine air-vent communicates with the high-temperature hot-air outlet, takes over for the air entering and returning mouth in the preceding bottom of burner hearth; Or at air entering and returning mouth adapter installation air blast, hot blast is received from the high-temperature hot-air outlet and is used the hot-air occasion.

6, by the described fuel oil of claim 1 (gas) jet flow-radiant heat pipe hot-air furnace, the same burner hearth of air-flow that it is characterized in that lower air duct, with the flue gas of flue be forward, and the air-flow that enters top hot-air generation chamber is the reverse collection chamber that enters with flue gas, is vertical from collection chamber with the air-flow that jet flow chamber spout impacts radiant panel.