CN2295975Y - Two purpose hot air and vapor making drying furnace with coiled pipes at normal pressure - Google Patents

Abstract

The utility model relates to a two purpose coiled pipe drying furnace for hot air and vapor at normal pressure, which belongs to a general liquid heater with a heat generation device. The combustion chamber is composed of a square lower part (1) and a cylinder-shaped upper part (2). The layout of the middle coiled pipe of a heat exchanging chamber (3) is in two sets of interlayers of difference rows of outer half ring coiled pipes (4) and inner half ring coiled pipes (5). The generation of vapor adopts the mode of an overflow pipe (6) with a plurality of holes. The utility model is especially suitable for the drying operations of wood, tobacco leaves, foodstuff, etc. The utility model has two purposes and has the advantages of energy saving and convenient operation.

Description

No platen tubular type hot blast, steam two-purpose drying oven

The utility model belongs to the fluid heater that heat-generating device is generally arranged, is specifically a kind ofly both to have produced hot blast, but the dual-purpose drying oven of output steam again.

Chinese patent ZL94208577.9 has reported a kind of hot blast, two boilers of steam, and according to report, it is a kind of pressure boiler, it is characterized in that putting a flue in furnace shell, and fire grate is wherein horizontal; Place a dividing plate on the flue, evenly being placed with on it has a dividing plate on heat-transfer pipe, the heat-transfer pipe; There is a water ash bin flue lower end, makes it constitute air-heater.Shell is placed in outside it, and bottom and water ash bin fuse, and have water inlet, sewage draining exit under the shell, and center of top has a chimney, and a boiling water mouth is arranged at top, and the water level meter is equipped with in the outside; Automatic blow off valve is equipped with at the top, has steam port, and the film safety valve is installed on it, and two boilers of this pressure hot blast, steam are used for hot wind supply, steam and show complicated slightly, because that band is pressed is also higher to the requirement of material.

The design's purpose is by arrange office and install heat exchange porous overflow pipe additional, design and do not have the hot blast of pressure, steam two-purpose drying oven of the difference of Heat Room annular coil pipe.

The design's drying oven mainly is made of parts such as combustion chamber, Heat Room, coil pipes, it is characterized in that the combustion chamber is made up of the barrel-shaped top (2) in bottom (1) and garden of square, the layout of coil pipe is outer semi-ring coil pipe (4) and (5) two groups of interlayer difference rows of interior semi-ring coil pipe in the Heat Room (3), many heat exchange porous overflow pipes (6) are divided equally the top that is arranged in combustion chamber and Heat Room (3), and the monosymmetric smoke evacuation ash pipe (7) that overflows is arranged in the left and right sides of fire door (8); Be the heat-insulation layer (11) of filling insulation material between Heat Room outer wall (9) and the plate-like crust (10), four blower fans (12) are symmetric configuration on four jiaos of upper of furnace body.

Following conjunction with figs. is described feature of the present utility model in detail.

Fig. 1 is the front view of drying oven agent structure, also is Figure of abstract.

Fig. 2 is a drying oven agent structure vertical view.

Fig. 3 is the front view of drying oven outer surface.

Fig. 4 is a drying oven outer surface vertical view.

(1) is the barrel-shaped top, combustion chamber, garden, bottom, combustion chamber (2) of square among the figure

(3) the outer semi-ring coil pipe of Heat Room (4)

(5) interior semi-ring coil pipe (6) heat exchange porous overflow pipe

(7) excessive ash pipe (8) fire door of smoke evacuation

(9) the plate-like crust of Heat Room outer wall (10)

(11) heat-insulation layer (12) blower fan

(13) water tank (14) exhaust outlet

(15) staircase (16) heat sink

The design's drying oven has replaced " straight tube in-line arrangement layout " heat exchange structure in the past with coil pipe difference row formula layout, The duplex coil that adds, namely outer semi-ring coil pipe (4) and interior semi-ring coil pipe (5) are arranged symmetrically with in body of heater, The flue gas spiral is risen be conducive to flow and heat transfer. Coil pipe (4,5) and body of heater are by a plurality of heat sinks simultaneously (16) connect heat radiation, heat flow density is even, and area of dissipation obviously increases. This drying oven is because steam generation Device adopts porous overflow pipe (6) formula structure, a plurality of being arranged symmetrically with, and distribution is even, and water is by water tank (13) Enter in the porous overflow pipe and heat through the combustion chamber earlier, enter again Heat Room (3), with small structure eruption, mist Change, increased the steam quantum of output, and the steam quantum of output can be adjusted.

The combustion chamber outside two fire doors (8) are split, and are convenient to the input of fuel. Four blower fans (12) are installed in Four jiaos of places of upper of furnace body, smoke convection, heat exchange in air intake and the coil pipe (4,5) are abundant. Outside Heat Room Fill the insulation material formation heat-insulation layers (11) such as perlite between wall (9) and the plate-like crust (10), Good heat insulation effect is arranged. The staircase (15) that arranges uses for the maintenance drying oven.

The design is owing to adopted porous spilling water tubular structure steam raising plant, water to enter in the pipe earlier through the combustion chamber Heating enters Heat Room again, with small structure eruption, atomizing, has increased the steam quantum of output, need not ad hoc Pang Big steam generator. When only drying operation with hot blast, the aperture place produces negative pressure, with cool ambient air Bring in the porous overflow pipe (6), by one-way flow tube wall is cooled off naturally, cold air enters in the stove simultaneously Be heated, enter Heat Room, produce hot blast.

But the design's hot blast, steam recycling: from used hot blast, the steam that the operation drying chamber comes out, yet possess certain temperature, enter recirculation but can from the material bin that is dried, import Heat Room again through inlet by damper.

Use the design's drying oven,, can use hot blast, steam drying earlier, single then hot-air seasoning of using for timber stoving; Can singly use hot blast, thereby be the drying oven of the dual-purpose special tool practicality of an a kind of stove grain, tobacco oven dry.

By the quantity length of oven dry product, volume is different and design the tandem product of different quantities of heat production and be widely used in above-mentioned timber, the oven dry heat supply of tobacco leaf and grain in the visual material bin of this drying oven.This drying oven uses the fuel range broadness, both available coal, useless this material etc., but can burn rice husk, pine nut skin, straw, and multifuel combustion again, pollute little, industrial production and civilian all suitable.

The design's a embodiment is as follows:

For oven dry 20-25m ³The operation of timber, the drying oven data that design heat production 1,000,000 kilocalories are as follows:

Overall dimensions: 2000 * 2000 * 3000

The combustion chamber: the bottom is 1000 * 1000 * 1000

Upper diameter φ is 1000, and height is 1800, and cumulative volume is 3m ³

Excessive ash pipe: the φ 300 * 3 of smoke evacuation

88.5 * 4, two groups of length overalls of coil diameter: φ are 4400

Four porous overflow pipe: φ 45 * 3.5

Air outlet: 500 * 1800

Material is: Q235

Claims (1)

1, a kind of no platen tubular type hot blast, the steam two-purpose drying oven, by combustion chamber (1,2), interlayer coil pipe (4,5), Heat Room (3), formations such as steam raising plant, it is characterized in that the combustion chamber is divided into the barrel-shaped top (2) in square bottom (1) and garden, the interlayer difference that coil pipe is outer semi-ring coil pipe (4) and interior semi-ring coil pipe (5) in the Heat Room (3) office that arranges, many porous overflow pipes (6) are by the top that is arranged in combustion chamber and Heat Room (3) garden week equably, the monosymmetric smoke evacuation ash pipe (7) that overflows is arranged in the left and right sides of fire door (8), be the heat-insulation layer (11) of filling insulation material between Heat Room outer wall (9) and the plate-like crust (10), four blower fans (12) are four jiaos of symmetric configurations in upper of furnace body.

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