CN2847077Y

CN2847077Y - Boiler energy saver

Info

Publication number: CN2847077Y
Application number: CNU2005200524785U
Authority: CN
Inventors: 刘裕俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-15
Filing date: 2005-11-15
Publication date: 2006-12-13
Anticipated expiration: 2015-11-15

Abstract

The utility model relates to an energy saving device for a boiler. A high-temperature fume inlet at one side end of the energy saving device for a boiler is connected with a boiler through an air outlet pipeline, and a fume outlet at the other end is connected with a chimney through an air outlet pipeline; the top end of the energy saving device for a boiler is provided with an air inlet, and a hot air outlet at the bottom is connected with an air distribution outlet on a blower for the boiler through an air inlet pipe; both ends inside the energy saving device for a boiler are provided with sealing plates, heat conducting pipes are evenly installed between the sealing plates and pipe holes of the heat conducting pipes are exposed outside the sealing plates. The energy saving device for a boiler of the utility model utilizes the fume temperature in a flue of a fuel-fired boiler to heat air entering a hearth, and the temperature of the air can reach 150 to 200DEG. C. Water in fuel can be gasified and separated by the hot air, which is an aid to the ignition of the hearth, the extinguishing is not easy, the combustion of the fuel can be improved and strengthened, and the average temperature of the inside of the hearth can be raised; the radiant heat transfer and the convection heat transfer are improved, the fuel can be sufficiently combusted, the time of the combustion of intense fire is decreased, the fuel is saved, black fume and green fume in the chimney is cleared and the requirement of environmental protection can be achieved.

Description

Energy-saving device of boiler

Technical field

The utility model relates to a kind of energy-saving device of boiler.

Background technology

At present, industries such as chemical industry, building materials, printing and dyeing, food and hotel all are to produce heat with boiler to carry out production, and the used fuel of boiler is coal, G﹠O is a raw material, particularly in the city owing to burn coal and pollute too greatly, do not reach environmental requirement and do not allow to burn, burn this height of pneumatolytic, a lot of enterprises all act as a fuel with oil, and oil is divided into heavy oil and diesel oil again.

The fuel oil of oil burning boiler is pressed into atomizer ejection by high-pressure oil pump, and the air of sending into air blast is blended in the burner hearth and burns, and ignition temperature is generally all 800～1000 ℃ of burnings.After the heat absorption of high-temperature flue gas through burner hearth internal pipeline heating surface two return or three backhauls, from flue, enter chimney and enter atmosphere again, cigarette temperature in the flue has 300～400 ℃ at this moment, and the cigarette temperature of discharging from chimney also has 200～300 ℃, and these waste heats just have been wasted in vain.At ordinary times oil burning boiler when burning required air and fuel oil can reduce furnace temperature when in burner hearth, burning, general furnace temperature is all about 900 ℃, it is terribly cold to have arrived wintry weather, at this moment the air themperature sent to of air blast is low to moderate the several years, furnace temperature was lower when such air distribution and fuel oil burnt in burner hearth, fire often occurs and be not easy to light, and in burning, flame-out phenomenon can take place.Cause oil inflame insufficient because furnace temperature is low, chimney back warp often emerge black smoke and blue or green cigarette, the thermal efficiency is very low, has brought pollution to the city, does not reach environmental requirement.Yet just must prolong the time of burning big fire in order to make boiler reach temperature required, many oil firings, this has just increased production cost greatly.

Summary of the invention

The purpose of this utility model is to provide a kind of energy saver of boiler.

The purpose of this utility model is achieved through the following channels: the high temperature cigarette import of energy-saving device of boiler one side connects boiler by outlet pipe, and the exhanst gas outlet of another side of energy-saving device of boiler connects chimney by outlet pipe; The top of energy-saving device of boiler has air intlet, and the hot air outlet of bottom connects air distribution outlet on the boiler blower by admission line; The two ends of energy-saving device of boiler inside are equipped with sealing plate, and heat pipe evenly is installed between the sealing plate, and the pore of heat pipe is exposed at outside the sealing plate.On the heat pipe tube wall fin is installed, fin in the form of sheets or helical form.Energy-saving device of boiler can several be installed in series.

The cigarette temperature in the oil burning boiler flue of utilizing the utility model energy-saving device of boiler heats the air that enters in the burner hearth can make temperature reach 150～200 ℃, such hot blast can gasify and separating oil in moisture, help burner hearth to catch fire, be not easy to extinguish, improve and strengthen oil inflame, improved the mean temperature in the burner hearth, radiant heat transfer and convection heat transfer' heat-transfer by convection have been strengthened, fuel oil is fully burnt reduced the time of burning big fire, saved fuel oil, remove black smoke and the blue or green cigarette in the chimney, reached environmental requirement.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the utility model user mode figure.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the high temperature cigarette import 8 of a side of the utility model energy-saving device of boiler connects boiler 1 by outlet pipe 2, and the exhanst gas outlet 10 of another side of energy-saving device of boiler connects chimney 11 by outlet pipe 2; The top of energy-saving device of boiler has air intlet 9, and the hot air outlet 5 of bottom connects air distribution outlet 4 on boiler 1 air blast 3 by admission line 6; The two ends of energy-saving device of boiler inside are equipped with sealing plate 14, and heat pipe 12 evenly is installed between the sealing plate 14, and the pore of heat pipe 12 is exposed at outside the sealing plate 14, and fin 13 is installed on heat pipe 12 tube walls, and fin 13 in the form of sheets or helical form.

Because the effect of air blast 3 exhausting, a large amount of fresh airs suck from the air intlet 9 of energy-saving device of boiler, air by the heat pipe 12 that heated the surface and during fin 13, air is heated the air distribution outlet 4 that comes out to enter boiler 1 from hot air outlet 5, send in the burner hearth by air blast 3 again and participate in fuel oil and be mixed together burning, utilize fume afterheat to heat to enter the air of burner hearth can make temperature reach 150～200 ℃, improved the mean temperature in the burner hearth, can make furnace temperature reach 1100～1150 ℃, exhaust gas temperature to 110～120 ℃ have been reduced, " efficient energy-saving device " makes the thermal efficiency of oil burning boiler 1 rise 7%～8%, saves fuel oil 11%～13%.

In order further to improve the effect of air preheat, the energy-saving device of boiler use of can connecting, two are contained on the pipeline 2 simultaneously, fresh air is the air intlet 9 of first energy-saving device of boiler of process earlier, air after the heating is discharged from hot air outlet 5, and then enter from second energy-saving device of boiler air intlet 9, coming out from hot air outlet 5 again, the air distribution outlet 4 that enters boiler 1 again participates in oil inflames.

Claims

1. energy-saving device of boiler, it is characterized in that: the high temperature cigarette import (8) of energy-saving device of boiler one side connects boiler (1) by outlet pipe (2), and the exhanst gas outlet of another side of energy-saving device of boiler (10) connects chimney (11) by outlet pipe (2); The top of energy-saving device of boiler has air intlet (9), and the hot air outlet of bottom (5) connects air distribution outlet (4) on boiler (1) air blast (3) by admission line (6); The two ends of energy-saving device of boiler inside are equipped with sealing plate (14), and heat pipe (12) evenly is installed between the sealing plate (14), and the pore of heat pipe (12) is exposed at outside the sealing plate (14).

2. energy-saving device of boiler as claimed in claim 1 is characterized in that: on heat pipe (12) tube wall fin (13) is installed, fin (13) in the form of sheets or helical form.

3. energy-saving device of boiler as claimed in claim 1 is characterized in that: energy-saving device of boiler can several be installed in series.