CN2867115Y - Environmental protective type coal-fired atmospheric hot water and hot pipe boiler - Google Patents

Abstract

The utility model discloses a stove which primarily uses a heat pipe for heat conducting, wherein three quarter of the lower part of the cylindrical stove is bundled outside the blast chamber; only the coal inlet and the ash outlet are arranged outside the cylinder; the main flame tube is comprised of an upper cylinder and an internal gas passage; the flame tube is seated on the blast chamber; the coal is burned in the upper blast chamber; the flame passes down the water-cooling stove bed through the air inducing effect of the chimney, continues to burn after meeting the complementary air at the lower blast chamber and the back blast chamber, and burns sufficiently at the multi-hole heat-storage baffle of the upper blast chamber; the high temperature gas enters the gas passage through pore space; the dust is collected by the baffle. The gas heat is conducted into the water in the flame tube primarily through a first group heat pipe tipsily inserted on the ascending gas passage wall, a second group heat pipe perpendicularly inserted on top of the horizontal communicating pipe wall, a third group heat pipe tipsily inserted on the descending gas passage pipe wall, and a fourth group heat pipe perpendicularly inserted on the flame tube baseboard of the gas storage. The utility model has the advantages of high stove water heating-up speed, high heat-transferring efficiency, sufficient coal burning, low smoke discharging temperature, non-black gas while burning the coal, high efficiency, energy-saving, environmental protection, and over eighty-six percent heat efficiency.

Description

The coal-fired atmospheric hot-water heat pipe boiler of environment-friendly type

Under technical field the utility model relate to utilize the high-efficiency heat conduction heat pipe as main heat transfer type, make the technical scheme of coal-fired hot-water boiler device, reach the purpose of the boiler of making coal-fired not over-emitting black exhaust, efficient, energy-conservation, safety, environmental protection

The present traditional hand coal-fired boiler of background technology still exists and emits or the problem of over-emitting black exhaust sometimes, and the thermal efficiency is low etc.2709861,2684021,2723895,2662142,2655065, in nine patents of 2648289..... notification number is in the patent of the heat pipe for thermal conductivity technology being used the boiler manufacturing that retrieves:, all be to utilize heat pipe to be used in the boiler manufacturing as auxiliary heat-conducting mode, using with the performance heat pipe at the use heat pipe all has insufficient and restricted situation.In the main mode of heat pipe as boiler heat conduction, four groups of heat pipes have nothing in common with each other in the utility model technology, are bringing into play best effect on its position.Multicell burning simultaneously, the setting of porous heat accumulation dividing plate have also reached the coal-fired not effect of over-emitting black exhaust.

Summary of the invention the utility model is in order to solve the manual problems such as the easy over-emitting black exhaust of coal burning boiler, contaminated environment and the thermal efficiency are low of throwing, and takes measures technically and its effect is described below; Boiler is vertical, if expansion furnace, in upper combustion chamber and lower combustion chamber are arranged, be separated by with water-cooled grate, coal feeding hole is placed on upper combustion chamber, flame is subjected to the anti-burning of chimney air inducing effect downwards during burning, passes water-cooled grate, enters after-burner through lower combustion chamber, fuel gas Yu in the flue gas Dao Fill go into two, tertiary air, fully burn in porous heat accumulation dividing plate place on after-burner top, temperature is up to 1500 ℃ herein, and pounce on collection most of dust down in herein.3/4ths of back up and down three combustion chambers wrap in the flue, when the heat in the combustion chamber scatters and disappears also major part pass in the water in the flue, the flue of being made up of body of heater cylinder and flue is sitting on the combustion chamber, the high-temperature flue gas that passes the heat accumulation partition pores enters uptake flue, oblique cutting first group of heat pipe on the uptake flue wall, insert in the flue, the heat major part is conducted in the water in the flue by heat pipe, flue-gas temperature descends, continue to flow through the flue cross over pipe, through vertically being inserted in second group of heat pipe conduction heat of cross over pipe upper wall, the 3rd group of heat pipe conduction heat of flue gas oblique cutting on downward-flow flue and wall, when flue gas entered the flue gas storehouse, flue-gas temperature was lower, on the flue base plate of flue gas Cang Ding, vertically be provided with the 4th group of heat pipe, be used for conducting the heat of low-temperature flue gas.Most of heat in the flue gas is transmitted in the water in the flue by four groups of heat pipes, and the flue gas storehouse has the effect of further dedusting concurrently.The beneficial effect of above measure is, the boiler thermal output of manufacturing is higher than 86%, and exhaust gas temperature is low, over-emitting black exhaust not, and operating cost is low, reaches the effect of energy-conservation, safety, environmental protection.

Description of drawings further describes the utility model patent below in conjunction with accompanying drawing: accompanying drawing is the coal-fired atmospheric hot-water heat pipe boiler of an environment-friendly type schematic diagram.

Main parts are in addition pressed piece number and are indicated as follows; 1, refractory material cast body, 2, gray-drawing port, 3, lower combustion chamber, 4, water-cooled grate, 5, coal feeding hole, 6, upper combustion chamber, 7, first groups of heat pipes, 8, uptake flue, 9, flue communicating pipe, 10, second groups of heat pipes, 11, flue, 12, hot water outlet, 13, thermometer, 14, downward-flow flue, 15, the 3rd groups of heat pipes, 16, porous heat accumulation dividing plate, 17, the 4th group of heat pipe, 18, the flue gas storehouse, 19, exhaust opening, 20, after-burner, 21, the mouth of banking up a fire

Describe: 1, first, second, third and fourth group heat pipe needs through strict science calculation Design, so that bringing into play the conduction heat efficiently on the position separately.

2, the appropriate design of back up and down three combustion chambers and porous heat accumulation dividing plate facilitates coal fully to burn, and forms the high-temperature region at the dividing plate place, pounces on the dust that collects in the flue gas in this again.

3, the setting of the 4th group of heat pipe on flue gas storehouse and the flue base plate can effectively be used the heat in the low-temperature flue gas, has alleviated the load of economizing coal gas.

The specific embodiment such as accompanying drawing, boiler are vertical, establish expansion furnace, in upper combustion chamber (6) and lower combustion chamber (3) are arranged, be separated by with water-cooled grate (4).Coal is thrown in upper combustion chamber, and the counter downwards water-cooled grate (4) that burnt of flame enters lower combustion chamber (3) during burning, has the short grained fire coal of some uncombusteds also to fall into lower combustion chamber (3) simultaneously and burns away.The flame of two Room enters after-burner (20) after mixing, fuel gas in the flue gas is located abundant burning at the porous heat accumulation dividing plate (16) on after-burner (20) top, herein temperature up to 1500 ℃ about, and pounce on collection and descend most of dust to fall into after-burner (20) bottom, and go out clearly from drawing grey fire door (2).Major part passed in the water in the flue (11) when the heat in the combustion chamber scattered and disappeared.The high-temperature flue gas that passes heat accumulation dividing plate (16) enters uptake flue (8), oblique cutting first group of heat pipe (7) and is inserted in the flue (11) on the uptake flue wall, the heat major part is imported in the water of flue by heat pipe, flue-gas temperature descends, continue to flow through flue cross over pipe (9) through vertically being inserted in second group of heat pipe (10) conduction heat on UNICOM's tube wall, the 3rd group of heat pipe (15) the conduction heat of flue gas oblique cutting on downward-flow flue pipe (14) and wall, flue-gas temperature is lower when flue gas enters flue gas storehouse (18), vertically is provided with the heat that the 4th group of heat pipe (17) is used for conducting low temperature on the flue base plate of flue gas Cang Ding.Last low-temperature flue gas is discharged from exhaust opening (19).

Claims (2)

1, the coal-fired atmospheric hot-water heat pipe boiler of a kind of environment-friendly type, body of heater is vertical, has three combustion chambers that connect each other to communicate with uptake flue, horizontal cross over pipe, downward-flow flue, flue gas storehouse in the flue, it is characterized in that; First group of heat pipe oblique cutting on the uptake flue tube wall is gone in the flue, second group of heat pipe vertical insertion in the flue on horizontal cross over pipe roof, the 3rd group of heat pipe oblique cutting on the downward-flow flue tube wall is gone in the flue, and the 4th group of heat pipe vertically is inserted in the flue on the upper furnace base plate of flue gas storehouse.

2, the coal-fired atmospheric hot-water heat pipe boiler of environment-friendly type according to claim 1 is characterized in that; Be located at and be provided with the porous heat accumulation dividing plate of casting with refractory material between the 3rd combustion chamber that flue central authorities cast with refractory material and the uptake flue and be separated by.