CN202561725U

CN202561725U - Energy-saving and environment-protection boiler

Info

Publication number: CN202561725U
Application number: CN201220182024XU
Authority: CN
Inventors: 孙励庆
Original assignee: Beijing Beifang Jingjing Environmental Protection Equipment Co Ltd
Current assignee: Beijing Beifang Jingjing Environmental Protection Equipment Co Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-11-28
Anticipated expiration: 2022-04-25

Abstract

The utility model relates to a boiler for realizing energy-saving and environment-protection through exhaust gas secondary combustion. The utility model aims at providing an energy-saving and environment-protection boiler, which can solve the problem of energy waste and environment pollution in the prior art. The energy-saving and environment-protection boiler comprises a boiler body, wherein a hearth is arranged in the boiler body, a baffle is arranged on the middle of the hearth, the baffle divides the hearth into a front combustion chamber and a back combustion chamber, an interval is arranged between the bottom end of the baffle and the bottom of the hearth, the back combustion chamber comprises a secondary combustion chamber arranged on the lower part and a smoke discharge chamber arranged on the upper part, the smoke discharge chamber is communicated with the secondary combustion chamber through a plurality of smoke holes, a smoke discharge tube is communicated with the smoke discharge chamber, an upper smoke guide hole is arranged in the top of the baffle, a lower smoke guide plate is arranged in the top of the secondary combustion chamber, the upper smoke guide plate is communicated with the lower smoke guide pipe, a smoke guide tube is arranged in the smoke discharge chamber, and the some guide tube is made of high-alumina cement.

Description

Energy-saving, environmental protection boiler

Technical field

The utility model relates to the boiler technology field, particularly relates to a kind of boiler of realizing energy-conserving and environment-protective through the flue gas second-time burning.

Background technology

The boiler of prior art comprises body of heater, in body of heater, is provided with burner hearth, and the top of burner hearth is provided with smoke exhaust pipe, at the preceding side lower part of burner hearth the fire door that adds fuel is set, and is provided with fire grate in the bottom of burner hearth.The boiler of this structure; Fuel is after the burner hearth internal combustion, and flue dust is directly discharged from the smoke exhaust pipe of roof of the furnace, because flue gas and hot-fluid time of staying in body of heater are very short; The particle that does not have completing combustion in a large number that contains in the flue gas together is discharged from, and can cause the waste of the energy and the pollution of environment.

The utility model content

The technical problem that the utility model will solve provides a kind of energy-saving, environmental protection boiler simple in structure, easy and simple to handle, can solve energy waste and environmental pollution problems in the prior art.

The utility model energy-saving, environmental protection boiler comprises body of heater, in body of heater, is provided with burner hearth; Top at burner hearth is provided with smoke exhaust pipe, is provided with fire grate in the bottom of burner hearth, is provided with dividing plate at the middle part of burner hearth; Dividing plate is divided into preceding combustion chamber and after-burner with burner hearth, and the upper end of dividing plate is fixedly connected with the burner hearth roof, and the right ends of dividing plate is fixedly connected with inboard wall of burner hearth respectively; Have the gap between the bottom of dividing plate and the base plate of burner hearth, after-burner comprises secondary combustion chamber and the superposed smoke evacuation chamber that is positioned at the bottom, and smoke evacuation chamber and secondary combustion chamber are communicated with through at least one smoke hole; Smoke exhaust pipe is communicated with the smoke evacuation chamber, offers smoke guiding hole at the top of dividing plate, and the top of secondary combustion chamber offers down smoke guiding hole; Upper and lower smoke guiding hole is communicated with through leading smoke pipe, and leading smoke pipe, to be positioned at smoke evacuation indoor, leads smoke pipe and processed by alumina cement.

The utility model energy-saving, environmental protection boiler, the wherein said smoke pipe of leading is " 7 " font, and the diameter of leading smoke pipe is d1,200≤d1≤300 millimeter.

The utility model energy-saving, environmental protection boiler, the gap of the bottom of wherein said dividing plate and the base plate of burner hearth is d2,150≤d2≤250 millimeter.

The utility model energy-saving, environmental protection boiler, the number of wherein said smoke hole are 10, and the diameter of smoke hole is d3,75≤d3≤125 millimeter.

The utility model energy-saving, environmental protection boiler; Wherein said smoke evacuation is indoor also to be equipped with horizontally disposed dust board; The rear end of dust board is fixedly connected with inboard wall of burner hearth; Dust board be positioned at smoke exhaust pipe advance mouth under, dust board can stop the flue gas that is positioned at the smoke hole under the mouth into directly to advance mouth.Through dust board is set,, can stop the dust in the flue gas to get into smoke exhaust pipe with direct rising of flue gas when flue gas strikes on the dust board after smoke hole is discharged.

The utility model energy-saving, environmental protection boiler, the top of wherein said burner hearth is provided with water tank, and water tank is communicated with the interior water channel of body of heater, and smoke exhaust pipe is positioned at water tank.

The utility model energy-saving, environmental protection boiler difference from prior art is that the utility model joint through dividing plate is set, is divided into preceding combustion chamber and after-burner with burner hearth in burner hearth, and after-burner is separated into secondary combustion chamber and smoke evacuation chamber; Lead smoke pipe in the installation of the top of dividing plate, the particulate smoke that does not have completing combustion in a large number that contains that after burning, discharges in the preceding combustion chamber is imported secondary combustion chamber, will not have the dust granules of completing combustion to carry out second-time burning through leading smoke pipe; Simultaneously; Dust granules through process by alumina cement lead in the smoke pipe time, also carry out second-time burning, the smoke exhaust pipe discharge of flue gas completely of burning through being communicated with the smoke evacuation chamber; Thereby; Fuel is fully burned, has practiced thrift the energy, can avoid the smoke pollution environment again.

Be described further below in conjunction with the energy-saving, environmental protection boiler of accompanying drawing the utility model.

Description of drawings

Fig. 1 is the front view of the utility model energy-saving, environmental protection boiler;

Fig. 2 looks cutaway view for the right side of the utility model energy-saving, environmental protection boiler.

The specific embodiment

Like Fig. 1, shown in Figure 2, a kind of energy-saving, environmental protection boiler of the utility model comprises body of heater 1; In the sidewall of body of heater 1 and roof, be provided with water channel 17; Be welded with water tank 16 on the top of body of heater 1, water tank 16 is communicated with the water channel 17 of body of heater 1, and smoke exhaust pipe 3 is installed in the water tank 16.In body of heater 1, be provided with burner hearth 2, burner hearth 2 is positioned at the below of water tank 16, is provided with fire grate 4 in the bottom of burner hearth 2, on the antetheca of burner hearth 2, offers fire door 20.Be provided with dividing plate 5 at the middle part of burner hearth 2, the upper end of dividing plate 5 and burner hearth 2 roofs, promptly water tank 16 bottoms weld together; In dividing plate 5, also be provided with water channel 17, this water channel 17 also is communicated with water tank 16, and the right ends of dividing plate 5 is fixedly connected with burner hearth 2 inwalls respectively; There is the gap between the bottom of the bottom of dividing plate 5 and burner hearth 2; Its gap width is d2, and 150≤d2≤250 millimeter are selected 230 millimeters for use in the present embodiment.Dividing plate 5 is divided into preceding combustion chamber 6 and after-burner 7 with burner hearth 2, and wherein after-burner 7 comprises the secondary combustion chamber 8 and superposed smoke evacuation chamber 9 that is positioned at the bottom.Smoke exhaust pipe 3 advance mouth 15 be positioned at the smoke evacuation chamber 9 top rear.The roof of secondary combustion chamber 8, sidewall and diapire all adopt alumina cement to process.On the roof of secondary combustion chamber 8, offer 10 smoke holes 10, two rows before and after smoke hole 10 is divided into evenly arrange that the diameter of smoke hole 10 is d3,75≤d3≤125 millimeter, and the diameter of smoke hole 10 is 75 millimeters in the present embodiment.Smoke evacuation chamber 9 is communicated with through smoke hole 10 with secondary combustion chamber.Directly over back smoke evacuation pore 10, horizontally disposed dust board 14 is installed, the rear end of dust board 14 is fixedly connected with burner hearth 2 inwalls, and dust board 14 can prevent to be positioned at that the flue gas of the back smoke evacuation pore 10 under the mouth 15 into is direct advances mouth 15.Offer smoke guiding hole 11 at the top of dividing plate 5, on the roof of secondary combustion chamber 8, also offer smoke guiding hole 12 down, following smoke guiding hole 12 is positioned at the front side of smoke hole 10; Upper and lower

smoke guiding hole

11,12 is communicated with through leading smoke pipe 13, leads smoke pipe 13 and is positioned at smoke evacuation chamber 9, leads smoke pipe 13 and is processed by alumina cement; Lead smoke pipe 13 and be " 7 " font; The diameter of leading smoke pipe 13 is d1, and 200≤d1≤300 millimeter in the present embodiment are 280 millimeters.The manual reciprocating fire grate 41 of employing of 6 bottoms, preceding combustion chamber in the present embodiment, fixed fire grate 42 is adopted in the bottom of secondary combustion chamber 8.

When the utility model energy-saving, environmental protection boiler uses; Behind the coal combustion in the preceding combustion chamber 6, produce not clean-burning in a large number flue gas, these flue gases move upward and get into secondary combustion chamber 8 after lead smoke pipe 13; Shown in arrow among Fig. 2; Not clean-burning flue gas is realized second-time burning in leading smoke pipe 13 and secondary combustion chamber 8, make fuel reach completing combustion, and burning completely, flue gas gets into smoke evacuation chambers 9 through smoke hole 10; Get into then smoke evacuation 9 tops, chamber smoke exhaust pipe 3 advance mouth 15, discharge through smoke exhaust pipe 3 at last.In the boiler course of work, the outlet flue 18 of smoke exhaust pipe 3 goes out to be connected with blower fan, blower fan outside exhausting in the smoke exhaust pipe 3, thus make the flow of flue gas in burner hearth 2 and the smoke exhaust pipe 3 more smooth and easy.

Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. an energy-saving, environmental protection boiler comprises body of heater (1), in body of heater (1), is provided with burner hearth (2); Be provided with smoke exhaust pipe (3) at the top of burner hearth (2), be provided with fire grate (4), it is characterized in that: be provided with dividing plate (5) at the middle part of burner hearth (2) in the bottom of burner hearth (2); Said dividing plate (5) is divided into preceding combustion chamber (6) and after-burner (7) with burner hearth (2); The upper end of said dividing plate (5) is fixedly connected with burner hearth (2) roof, and the right ends of dividing plate (5) is fixedly connected with burner hearth (2) inwall respectively, has the gap between the base plate of the bottom of dividing plate (5) and burner hearth (2); Said after-burner (7) comprises secondary combustion chamber (8) and the superposed smoke evacuation chamber (9) that is positioned at the bottom; Said smoke evacuation chamber (9) and secondary combustion chamber are communicated with through at least one smoke hole (10), and said smoke exhaust pipe (3) is communicated with smoke evacuation chamber (9), offers smoke guiding hole (11) at the top of said dividing plate (5); The top of said secondary combustion chamber (8) offers down smoke guiding hole (12); Said upper and lower smoke guiding hole (11,12) is communicated with through leading smoke pipe (13), and the said smoke pipe (13) of leading is positioned at smoke evacuation chamber (9), and the said smoke pipe (13) of leading is processed by alumina cement.

2. energy-saving, environmental protection boiler according to claim 1 is characterized in that: the said smoke pipe (13) of leading is " 7 " font, and the diameter of leading smoke pipe (13) is d1,200≤d1≤300 millimeter.

3. energy-saving, environmental protection boiler according to claim 1 is characterized in that: the gap of the base plate of the bottom of said dividing plate (5) and burner hearth (2) is d2,150≤d2≤250 millimeter.

4. energy-saving, environmental protection boiler according to claim 1 is characterized in that: the number of said smoke hole (10) is 10, and the diameter of smoke hole (10) is d3,75≤d3≤125 millimeter.

5. according to claim 2 or 3 or 4 described energy-saving, environmental protection boilers; It is characterized in that: horizontally disposed dust board (14) also is installed in the said smoke evacuation chamber (9); The rear end of said dust board (14) is fixedly connected with burner hearth (2) inwall; Said dust board (14) be positioned at smoke exhaust pipe (3) advance mouth (15) under, said dust board (14) can stop and is positioned at the said flue gas that advances the smoke hole (10) under the mouth (15) and directly advances mouth (15).

6. energy-saving, environmental protection boiler according to claim 5 is characterized in that: the top of said burner hearth (2) is provided with water tank (16), and said water tank (16) is communicated with the interior water channel of body of heater (1), and said smoke exhaust pipe (3) is positioned at water tank (16).