CN201377899Y

CN201377899Y - Flow-guiding gas fired boiler

Info

Publication number: CN201377899Y
Application number: CN200920080028U
Authority: CN
Inventors: 夏玉彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-04
Filing date: 2009-04-04
Publication date: 2010-01-06
Anticipated expiration: 2019-04-04

Abstract

A flow-guiding gas fired boiler relates to a water tank constructed by a boiler top plate (8), a boiler bottom plate (16) and a boiler shell (14); a water inlet pipe (4), a boiled water pipe (5) and a hot water pipe (11) are arranged on the water tank; an emptying pipe (9) is arranged on the boiler top plate (8) and a gas combustor (1) is arranged under the boiler bottom plate (16); the gas fired boiler is characterized in that a smoke pipe (6) penetrates through the water tank, the smoke inlet of the smoke pipe (6) is positioned in the center of the boiler bottom plate (16), the smoke outlet of the smoke pipe (6) is positioned at the boiler top plate (8), a circulating water pipe (7) is arranged in the section of smoke pipe (6) inside the water tank along the smoke pipe (6) direction, the upper and lower ends of the circulating water pipe (7) penetrate through the wall of the smoke pipe (6) to be communicated with the water tank, a plurality of flow deflectors (13) are alternately arranged on the external wall of the circulating water pipe (7). Water in the circulating water pipe (7) forms natural circulation during heating process and the heat exchange coefficient is effectively increased.

Description

Flow guide gas-fired boiler

One. technical field

It is a kind of simple in structure that the utility model belongs to, and pilot flow combustion gas boiling water that the thermal efficiency is high and hot water two purpose boiler also can be made steam boiler in case of necessity.

Two. background technology

Under the promotion of China's energy-saving and emission-reduction policy, create conservation-minded society, certainly will to eliminate a collection of manufacturing cost height, complex process, heat exchange weak effect, pollute greatly, high product consumes energy.According to the existing energy resource structure of China, popularize that consumptive material is few, the product of energy-conserving and environment-protective plays crucial effects to the economic development of China.

Existing big and small Industrial Boiler and boiler for domestic are one of bigger equipment of China's energy consumption, and the steel of producing these equipment have also accounted for sizable ratio in total steel consumption the inside of China, therefore, reduce the boiler manufactured materials, reducing boiler energy consumption and discharge amount of pollution is the important measures of China's sustainable development.As: Chinese patent literature 98205908.6 discloses a kind of high efficient gas boiler.It has realized that volume is little, cost is low, do not have explosive sound during easy to use, igniting, flames of anger burning, advantage free from environmental pollution; This invention burner 3 be arranged on flue 2 below, igniter head 11 of igniter is formed by two at least, and be in respectively burner combustion tube 7 near.Efficient transducer 4 is made up of acclivitous comb 14, and comb is located in the flue above the burner, and its two ends are connected with water jacket 17; Flue is arranged in the housing 1, forms water jacket 17 between flue and the housing; This boiler is suitable for the usefulness of indoor heating and heat supply water, and the thermal efficiency can reach more than 85%.And for example: Chinese patent literature 200710092977.0 discloses a kind of condensing type highly effective gas displacement type water heater, this invention includes enamel inner container, anodic magnesium rod, smoke exhaust pipe, the flue sheet that stagnates, smokejack, the water heater heat-insulation layer, the support ring combination, outer casing upper cover, shell, the combination of shell lower cover, front shroud, the front shroud cover plate, cold water inlet, hot water outlet, fuel gas inlet, the temperature, pressure relief valve connection, burner, gas control valve, between enamel inner container and water heater heat-insulation layer the adverse current cover is arranged, adverse current cover upper end is connected with adverse current cover top cover, forms the adverse current chamber with the enamel inner container outer wall; Have the ponding dish to prop up seat ring in the support ring combination, the ponding dish props up the ponding dish on the seat ring; Also having between adverse current cover and water heater heat-insulation layer refluxes covers, and reflux cover lower end and ponding dish are connected, and the upper end has the cover of backflow sealing ring to be connected with the adverse current cover, with the outer wall formation back cavity of adverse current cover; Smokejack is in the outer casing frontispiece middle and lower part, leads to front shroud exhaust smoke hole on the shell, and the cover front upper that refluxes has mouth and smokejack to lead to; The outer wall of the water heater heat-insulation layer parcel adverse current cover and the cover that refluxes.

Three. summary of the invention

The purpose of this utility model is that a kind of heat exchange process of design is long and heat transfer rate is high and it is energy-conservation to realize and the flow guide gas-fired boiler reduction steel consumption.

Basic ideas of the present utility model are: the high-temperature flue gas after the burning concentrates in together and enters from the outlet of boiler bottom plate that to carry out flow deflector between chimney and the recirculated water collapsible along Cheng Jiare, realizes making full use of of heat energy to reduce final exhaust gas temperature.

The technical scheme that the utility model is taked is: a kind of pilot flow gas-fired water heating boiler, relate to by the boiler top board, boiler bottom plate, the water tank that shell surrounds, on water tank, be provided with water inlet pipe, boiled water pipe, hot-water line, on the boiler top board, be provided with evacuated tube, below boiler bottom plate, be provided with gas burner, it is characterized in that: have a chimney from water tank, to pass, the mouth that advances of chimney is positioned at the boiler bottom plate center, the outlet flue of chimney is positioned on the boiler top board, along the chimney direction circulating water pipe is housed at the one section chimney that is positioned at water tank, circulating water pipe up and down two ends is communicated with the alternate polylith flow deflector that is provided with on the outer wall of circulating water pipe after passing the wall of chimney with water tank.

Further scheme is: hot-water line is positioned on the boiler top board.

Further scheme is: the outlet flue of chimney is positioned at boiler top board center.

Further scheme is: chimney be shaped as circle, flow deflector be shaped as semi-annular shape, and the internal diameter of flow deflector equals the external diameter of chimney, flow deflector is provided with along the chimney circumferencial direction.Can reduce the processing and manufacturing difficulty like this.

Further scheme is: shell is surrounded by heat-insulation layer outward.

Further scheme is: boiler bottom plate is downward arcwall face.

Flow deflector can be arranged a plurality of according to the length of circulating water pipe, realize that repeatedly water conservancy diversion and flue gas are folding, increases the flow process and the disturbance of flue gas with the method, realizes further augmentation of heat transfer effect.

Burner is annular firing as far as possible, and the flame that is produced does not directly enter in the chimney, but gathers to the centre around boiler bottom plate, and the flame that makes that like this can be artificial obtains diffusion, increases the area of flame, and it is long-pending to strengthen radiation heating-surface simultaneously.

Because the utility model is simple in structure, each parts coefficient of expansion is good, and the intensity height is equally applicable to the application of bearing hot water boiler and steam boiler.

The utility model has the advantages that: because heating power makes progress and the downward principle of cold gravity, internal water forms Natural Circulation to circulating water pipe under heat exchange, effectively strengthened the coefficient of heat transfer in heating process.Simple structure, lower cost, the heat transfer type of reinforcement has been captured the short and low shortcoming of heat transfer intensity of conventional boiler heat exchange process, and has realized advantage energy-conservation and the reduction rolled steel dosage.

Four, description of drawings

Fig. 1 is the generalized section of the utility model embodiment.

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

Among the figure: 1. gas burner, 2. boiler foundation, 3. blow-off pipe, 4. water inlet pipe, 5. boiled water pipe, 6. chimney, 7. circulating water pipe, 8. boiler top board, 9. evacuated tube, 10. chimney top cover, 11. hot-water line, 12. water level pipes, 13. flow deflectors, 14. shell, 15. heat-insulation layers, 16. boiler bottom plates, 17. gas valve, 18. air inlet pipe, 19. combustion fans.

Five, the specific embodiment

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

As Fig. 1 and Fig. 2, a kind of flow guide gas-fired boiler, relate to by boiler top board 8, boiler bottom plate 16, the water tank that shell 14 surrounds, on water tank, be provided with water inlet pipe 4, boiled water pipe 5, hot-water line 11 and water level pipe 12, on boiler top board 8, be provided with evacuated tube 9, below boiler bottom plate 16, be provided with gas burner 1, it is characterized in that: have a chimney 6 from water tank, to pass, the mouth that advances of chimney 6 is positioned at boiler bottom plate 16 centers, the outlet flue of chimney 6 is positioned on the boiler top board 8, along chimney 6 directions circulating water pipe 7 is housed at the one section chimney 6 that is positioned at water tank, circulating water pipe is communicated with the alternate polylith flow deflector 13 that is provided with on the outer wall of circulating water pipe 7 after passing the wall of chimney 6 in two ends about in the of 7 with water tank.Hot-water line 11 is positioned on the boiler top board (8).The outlet flue of chimney 6 is positioned at boiler top board 8 centers.Chimney 6 be shaped as circle, flow deflector 13 be shaped as semi-annular shape, and the internal diameter of flow deflector 13 equals the external diameter of chimney 6, flow deflector 13 is along chimney 6 circumferencial direction settings.The shell 14 outer heat-insulation layers 15 that are surrounded by.

Claims

1, a kind of flow guide gas-fired boiler, relate to by boiler top board (8), boiler bottom plate (16), the water tank that shell (14) surrounds, on water tank, be provided with water inlet pipe (4), boiled water pipe (5), hot-water line (11), on boiler top board (8), be provided with evacuated tube (9), below boiler bottom plate (16), be provided with gas burner (1), it is characterized in that: have a chimney (6) from water tank, to pass, the mouth that advances of chimney (6) is positioned at boiler bottom plate (16) center, the outlet flue of chimney (6) is positioned on the boiler top board (8), along chimney (6) direction circulating water pipe (7) is housed at the one section chimney (6) that is positioned at water tank, circulating water pipe (7) two ends up and down is communicated with the alternate polylith flow deflector (13) that is provided with on the outer wall of circulating water pipe (7) after passing the wall of chimney (6) with water tank.

2, flow guide gas-fired boiler according to claim 1 is characterized in that: hot-water line (11) is positioned on the boiler top board (8).

3, flow guide gas-fired boiler according to claim 1 is characterized in that: the outlet flue of chimney (6) is positioned at boiler top board (8) center.

4, flow guide gas-fired boiler according to claim 1, it is characterized in that: chimney (6) be shaped as circle, flow deflector (13) be shaped as semi-annular shape, and the internal diameter of flow deflector (13) equals the external diameter of chimney (6), flow deflector (13) is along chimney (6) circumferencial direction setting.

5, flow guide gas-fired boiler according to claim 1 is characterized in that: the outer heat-insulation layer (15) that is surrounded by of shell (14).

6, flow guide gas-fired boiler according to claim 1 is characterized in that: boiler bottom plate (16) is downward arcwall face.