CN2692574Y

CN2692574Y - Horizontal atmospheric water heating boiler

Info

Publication number: CN2692574Y
Application number: CN 200420015746
Authority: CN
Inventors: 李鹏; 闫寿元; 刘振民; 郭复炎
Original assignee: 郑树明; 郭复炎
Priority date: 2004-02-10
Filing date: 2004-02-10
Publication date: 2005-04-13
Anticipated expiration: 2014-02-10

Abstract

Disclosed is a horizontal atmospheric water heating boiler, comprising a boiler case, a boiler core, a grate, a hearth, a boiler arch, an ash burning chamber and a counter flow smoke channel. The ash burning chamber, the boiler arch, the hearth and the grate are provided at the front part of the boiler core in series; the counter flow smoke channel is provided at the rear part of the boiler core; the boiler arch is provided with a smoke window communicating the hearth with the ash burning chamber; the rear part of the ash burning chamber is communicated with the front part of the counter flow smoke channel; a plurality of upper waster spacing jackets and lower water spacing jackets which are embedded in order are transversely installed in the counter flow smoke channel forming in S shape. The utility model is characterized in that a circular second air pipes is provided around the smoke window in the boiler arch. A plurality of second air nozzles communicated with the second air pipe are provided around the second air pipe; the second air nozzles are inclined upward and extended to the inner side of the smoke window; the second air pipe is connected with a second air entering pipe; one end of the second air entering pipe is communicated with the second air pipe, and the other end is extended out of the boiler case. The utility model enlarges the air amount of the ash burning chamber, has sufficient burning, and improves heat efficiency.

Description

Horizontal normal-pressure hot-water boiler

Technical field

The utility model relates to a kind of horizontal normal-pressure hot-water boiler.

Background technology

Existing horizontal normal-pressure hot-water boiler is owing to deficiency in draught, and it is insufficient to burn, and the thermal efficiency is low, and the dust concentration of discharging is higher.

Summary of the invention

In order to overcome the existing horizontal normal-pressure hot-water boiler low deficiency of insufficient thermal efficiency of burning, the utility model provides a kind of sufficient combustion thermal efficiency higher horizontal normal-pressure hot-water boiler.

The technical solution of the utility model is to add secondary air channel and secondary tuyere around the burner hearth of existing horizontal normal-pressure hot-water boiler and the smokestack between the secondary furnace, joins an amount of secondary wind when burning, increases combustion efficiency.

This horizontal normal-pressure hot-water boiler comprises shell, flue, fire grate, burner hearth, chimney arch, secondary furnace, convection pass, flue is installed in the shell, logical air pipe is arranged at the top of shell, before the flue, after, both sides, have between the latter half of and shell at the bottom of flue top and the flue and form the hydrospace at interval, secondary furnace, chimney arch, burner hearth and fire grate are successively set on the front portion in the flue from top to bottom, wall with refractory lining, refracto is arranged around the burner hearth, convection pass is arranged on the rear portion of flue, chimney arch has smokestack burner hearth and secondary furnace UNICOM, the front portion of burner hearth is a fire door, the rear portion of secondary furnace communicates with the front portion of convection pass, in convection pass, laterally be installed with some on water spacer and following water spacer, last water spacer is alternate successively with following water spacer, form S shape flue, there is floss hole at the rear portion of convection pass, it is characterized in that: the secondary air channel that annular is being set on every side of smokestack in chimney arch, some secondary tuyeres that communicate with secondary air channel evenly are being set around secondary air channel, secondary tuyere is tilted to and reaches the smokestack inboard, secondary air channel is connecting secondary wind inleting tube, one end of secondary wind inleting tube communicates with secondary air channel, and the other end reaches outside the shell.

When existing horizontal normal-pressure hot-water boiler moves, coal added in the burner hearth burn, the new coal that adds in the burner hearth will at high temperature carry out the dry distillation drying and separate out a large amount of flue gas of fugitive constituent generation, the combustible component of these exhaust gas volumns can not get fully burning and entered atmosphere formation severe contamination owing to the deficiency of air capacity this moment.Because the utility model is provided with secondary air channel and secondary tuyere around the smokestack in chimney arch, under the effect of air-introduced machine, spray secondary hot-air, increase the air quantity of secondary furnace, the fugitive constituent that coal is separated out when dry distillation, drying can be fully burned, and has improved the thermal efficiency.Flue gas carries out heat convection through convection heating surface after entering secondary furnace by the smokestack of chimney arch more then, at last by flue outlet, air-introduced machine, enters atmosphere through smokestack.The thorough like this boiler over-emitting black exhaust phenomenon of having eliminated has reached and has eliminated cigarette, flue dust, energy-conservation effect.

Description of drawings

Fig. 1 is the longitudinal sectional view along the plane of symmetry of the utility model embodiment.

Fig. 2 is and the corresponding vertical view of Fig. 1, and the first half is the cutaway view along A-A line among Fig. 1 among the figure, and Lower Half is the cutaway view along B-B line among Fig. 1.

Fig. 3 is the cutaway view along C-C line among Fig. 1.

Fig. 4 is the left view relative with Fig. 1.

Among the above-mentioned figure:

1, shell header board 2, smokestack 3, shell 4, logical air pipe

5, hydrospace 6, chimney arch 7, secondary furnace 8, convection pass

9, manhole 10, last water spacer 11, following water spacer 12, flue

13, plate 16, floss hole behind flue top 14, smoke exhaust pipe 15, the shell

17, at the bottom of base 18, boiler foundation 19, the flue 20, ashcan

21, fire grate 22, fire door 23, burner hearth 24, wall with refractory lining, refracto

25, secondary wind inleting tube 26, secondary air channel 27, secondary tuyere 28, inspection door

29, blow-off pipe 30, shoot door 31, water inlet pipe 32, outlet pipe 33, hand hole

The specific embodiment

Detailed structure below in conjunction with embodiment and this horizontal normal-pressure hot-water boiler of description of drawings thereof.

Fig. 1, Fig. 2, the described horizontal normal-pressure hot-water boiler of Fig. 3 comprises shell 3, flue 12, fire grate 21, burner hearth 23, chimney arch 6, secondary furnace 7, convection pass 8, flue 12 is installed in the shell 3, logical air pipe 4 is arranged at the top of shell 3, before the flue 12, after, both sides, have between 19 the latter half of and shell 3 at the bottom of flue top 13 and the flue and form hydrospace 5 at interval, secondary furnace 7, chimney arch 6, burner hearth 23 and fire grate 21 are successively set on the front portion in the flue 12 from top to bottom, wall with refractory lining, refracto 24 is arranged around the burner hearth 23, convection pass 8 is arranged on the rear portion of flue 12, chimney arch 6 has smokestack 2 burner hearth 23 and secondary furnace 7 UNICOMs, the front portion of burner hearth 23 is a fire door 22, the rear portion of secondary furnace 7 communicates with the front portion of convection pass 8, water spacer 10 and six following water spacers 11 on six laterally are installed in convection pass 8, last water spacer 10 is alternate successively with following water spacer 11, form S shape flue, there is floss hole 16 at the rear portion of convection pass 8, it is characterized in that: the secondary air channel 26 that annular is being set on every side of smokestack 2 in chimney arch 6, six secondary tuyeres 27 that communicate with secondary air channel 26 evenly are being set around secondary air channel 26,45 ° of inboards that upwards reach smokestack 2 of secondary tuyere 27 and horizontal plane inclination, secondary air channel 26 is connecting secondary wind inleting tube 25, one end of secondary wind inleting tube 25 communicates with secondary air channel 26, and the other end reaches outside the shell header board 1 of shell 12.

Present embodiment plate 15 behind shell also is being provided with water inlet pipe 31, and outlet pipe 32, blow-off pipe 29 and seven shoot doors 30 are being set in the side of shell 3, at the top of shell 3 manhole 9 is arranged.In the bottom of shell 12 pedestal 17 is arranged.

During use, this horizontal normal-pressure hot-water boiler is installed in the boiler foundation 18, and the front portion of boiler foundation 18 is an ashcan 20, and ashcan 20 is corresponding with fire grate 21.

On the right side of shell 3 six hand holes 33 are arranged, in both sides, shell header board bottom two hand holes 33 are arranged, there is inspection door 28 at the middle part, and there are two hand holes 33 both sides, plate bottom behind the shell.

Claims

1, a kind of horizontal normal-pressure hot-water boiler, it comprises shell, flue, fire grate, burner hearth, chimney arch, secondary furnace, convection pass, flue is installed in the shell, logical air pipe is arranged at the top of shell, before the flue, after, both sides, have between the latter half of and shell at the bottom of flue top and the flue and form the hydrospace at interval, secondary furnace, chimney arch, burner hearth and fire grate are successively set on the front portion in the flue from top to bottom, wall with refractory lining, refracto is arranged around the burner hearth, convection pass is arranged on the rear portion of flue, chimney arch has smokestack burner hearth and secondary furnace UNICOM, the front portion of burner hearth is a fire door, the rear portion of secondary furnace communicates with the front portion of convection pass, in convection pass, laterally be installed with some on water spacer and following water spacer, last water spacer is alternate successively with following water spacer, form S shape flue, there is floss hole at the rear portion of convection pass, it is characterized in that: the secondary air channel that annular is being set on every side of smokestack in chimney arch, some secondary tuyeres that communicate with secondary air channel evenly are being set around secondary air channel, secondary tuyere is tilted to and reaches the smokestack inboard, secondary air channel is connecting secondary wind inleting tube, one end of secondary wind inleting tube communicates with secondary air channel, and the other end reaches outside the shell.