CN201463252U - Energy-saving efficient gas-fired normal pressure boiler - Google Patents

Abstract

The utility model relates to a gas fired boiler, in particular to an energy-saving efficient gas-fired normal pressure boiler, which solves the problems of the prior gas fired boiler that the gas consumption is large, the combustion is inadequate, the heat efficiency is low, and the boiler wears badly. The energy-saving efficient gas-fired normal pressure boiler comprises a furnace shell, a fire tube, a hearth inner container, a hearth outer container, and an inner disk chuck, wherein the hearth inner container is enclosed into the hearth, the fire tube, the hearth inner container, the hearth outer container and the inner disk chuck are enclosed into a water interlayer, and a first eddy current whirlwind combustion chamber and a second eddy current whirlwind combustion chamber are respectively arranged at the front and the rear ends in the furnace shell; a water pipe with two ends thereof communicated with the water interlayer is sleeved in the fire tube; and outer disk chucks used for supporting the water pipe with the edge fixed with the side wall of the hearth inner container are arranged at the two ends of the water pipe. The utility model improves the heat utilization of the fuel, and at the same time reduces the gas consumption of the boiler, thereby being a novel gas fired boiler with energy conservation and environmental protection.

Description

Energy-saving high-efficient gas normal-pressure boiler

Technical field

The utility model relates to gas fired-boiler, specifically is a kind of energy-saving high-efficient gas normal-pressure boiler.

Background technology

Along with the development of society and the enhancing of people's awareness of saving energy, the reducing energy consumption of gas fired-boiler is imperative.Existing gas fired-boiler is because the restriction of himself structure, the problem that the ubiquity air consumption is big, burning is insufficient and the thermal efficiency is low; Existing gas fired-boiler mainly comprises furnace shell, the burner hearth inner bag, the outer courage of burner hearth, and the burner hearth that surrounds by the burner hearth inner bag, be provided with the fire tube that axially parallel is arranged between the outer courage of burner hearth inner bag and burner hearth, the fire tube two ends are fixed with its edge and the fixing interior floral disc of burner hearth inner bag sidewall, before in the furnace shell, back two ends are respectively equipped with the first eddy current cyclone combustion chamber that is surrounded by burner hearth inner bag and interior floral disc, the second eddy current cyclone combustion chamber, the fire tube two ends respectively with the first eddy current cyclone combustion chamber, the second eddy current cyclone combustion chamber is communicated with, the burner hearth inner bag, the outer courage of burner hearth, interior floral disc, and the fire tube tube wall surrounds the water interlayer of sealing, the burner hearth back-end closure jointly, the front end inlet place is communicated with the first eddy current cyclone combustion chamber; During work, water filling in water interlayer, combustion gas forms high-temperature flue gas in the burner hearth internal combustion, the flue gas first eddy current cyclone combustion chamber through being positioned at the furnace shell Inner Front End earlier enters fire tube, and carry out heat exchange by the water in fire tube tube wall and the water interlayer, promptly the water in the water interlayer is heated, after heat exchange was finished, flue gas was discharged outside the boiler by the second eddy current cyclone combustion chamber that is positioned at the furnace shell rear end.In conjunction with above-mentioned job analysis, mainly there is following defective in existing gas fired-boiler: the one, in heat exchanging process, heat exchange area between the water in flue gas and the water interlayer (contact area of fire tube and water) is very little, promptly only limit to the area of fire tube tube wall, this directly causes the contained heat of high-temperature flue gas to be not fully utilized, and makes that the air consumption of boiler is very big and the thermal efficiency is very low; The 2nd, front end is communicated with the first eddy current cyclone combustion chamber because burner hearth adopts, the structure of back-end closure, cause flue gas when burner hearth front end inlet place flows to the first eddy current cyclone combustion chamber, can form near the furnace shell the burner hearth front end and continue baking, time has been grown and has caused furnace shell to be burnt out easily, therefore is necessary to invent a kind of efficient energy-saving and durable novel gas boiler.

Summary of the invention

Existing gas fired-boiler air consumption is big, burning is insufficient, the thermal efficiency is low and short-life problem, and a kind of energy-saving high-efficient gas normal-pressure boiler is provided in order to solve for the utility model.

The utility model is to adopt following technical scheme to realize: energy-saving high-efficient gas normal-pressure boiler, comprise furnace shell, fire tube, the burner hearth inner bag, the outer courage of burner hearth, interior floral disc, the burner hearth that surrounds by the burner hearth inner bag, the water interlayer that surrounds by the outer courage of fire tube, burner hearth inner bag, burner hearth, interior floral disc, and the first eddy current cyclone combustion chamber and the second eddy current cyclone combustion chamber of being located at rear and front end in the furnace shell respectively; Be with the water pipe that its two ends all are communicated with water interlayer in the fire tube, the water pipe two ends are provided with its edge and the outer floral disc of water pipe is fixed, is used to support to burner hearth inner bag sidewall; The second eddy current cyclone firing is indoor to be provided with double-deck lateral partitions, water interlayer extends between the double-deck lateral partitions, the both sides of edges of lateral partitions is fixed with the sidewall and the bottom surface of burner hearth inner bag respectively, and the second eddy current cyclone combustion chamber comprises last eddy current cyclone combustion chamber and the following eddy current cyclone combustion chamber that is separated by lateral partitions; Be provided with double-deck burner hearth inner bag between the burner hearth front end and the first eddy current cyclone combustion chamber, water interlayer extends between the double-deck burner hearth inner bag; The burner hearth front end cuts off by the double-deck burner hearth inner bag and the first eddy current cyclone combustion chamber, and the burner hearth rear end is communicated with following eddy current cyclone combustion chamber; Gap between water pipe and the fire tube constitutes fireworks channel, and fireworks channel one end is communicated with the first eddy current cyclone combustion chamber, the other end is communicated with last eddy current cyclone combustion chamber and following eddy current cyclone combustion chamber; The quantity of described water pipe, fire tube is all decided according to practical situation, and described burner hearth, water interlayer, eddy current cyclone combustion chamber are existing known configurations.

During concrete work, in water interlayer, fill with water, combustion gas forms flue gas in the burner hearth internal combustion, the circulation path of flue gas is as follows: flue gas flows into eddy current cyclone combustion chamber down earlier through the burner hearth rear end, pass the fireworks channel that is positioned at furnace shell downside (close eddy current cyclone combustion chamber one side down) then and arrive the first eddy current cyclone combustion chamber, then flue gas passes the fireworks channel that is positioned at furnace shell upside (near last eddy current cyclone combustion chamber one side) and arrives upward eddy current cyclone combustion chamber, and discharges outside the boiler thus; Being divided into the second eddy current cyclone combustion chamber upward, the eddy current cyclone combustion chamber makes the circulation path of flue gas become the reciprocation type circulation with following eddy current cyclone combustion chamber, so promptly avoid flue gas from burner hearth front end process, also therefore solved the problem that existing gas fired-boiler furnace shell is burnt out easily; Adopt the gap between water pipe and the fire tube to make then that as fireworks channel heat exchange area significantly increases, promptly on the basis that originally only comprises the fire tube tube wall area, increased the area of water pipe tube wall again, its benefit is to make in the heat exchanging process that the utilization rate of contained heat energy is increased dramatically in the flue gas, thereby reduced the air consumption of boiler, improved the thermal efficiency of boiler.

Further, for making the burning of flue gas in burner hearth more abundant, thereby improve the thermal efficiency of boiler indirectly, be provided with the water pipe heated-separated wall in the burner hearth.Described water pipe heated-separated wall is the structure that those skilled in the art realize easily, and multiple malformation can be arranged.

The utility model is by a series of structural improvement, solved thoroughly that existing gas fired-boiler air consumption is big, burning is insufficient, the thermal efficiency is low and short-life problem, when improving the fuel thermal energy utilization rate, having reduced the air consumption of boiler, is a kind of have concurrently energy-conservation and novel gas boiler environmental protection.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

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

Among the figure: 1-burner, 2-oxygenation mouth, 3-furnace shell, the 4-water pipe, 5-fire tube, 6-burner hearth, 7-burner hearth inner bag, the outer courage of 8-burner hearth, 9-delivery port, the 10-chimney, 11-water level meter, 12-sees burner, the 13-explosion-proof valve, 14-water return outlet, 15-boiler foundation, floral disc in the 16-water pipe heated-separated wall, 17-, the 18-water interlayer, the 19-fireworks channel, the outer floral disc of 20-, 21-lateral partitions, the 22-air gauge, the 23-water-thermometer, the 24-first eddy current cyclone combustion chamber, the last eddy current cyclone combustion chamber of 25-, eddy current cyclone combustion chamber under the 26-, the double-deck burner hearth inner bag of 27-.

The specific embodiment

Energy-saving high-efficient gas normal-pressure boiler, comprise furnace shell 3, fire tube 5, burner hearth inner bag 7, the outer courage 8 of burner hearth, interior floral disc 17, the burner hearth 6 that surrounds by burner hearth inner bag 7, the water interlayer 18 that surrounds by the outer courage 8 of fire tube 5, burner hearth inner bag 7, burner hearth, interior floral disc 17, and the first eddy current cyclone combustion chamber 24 and the second eddy current cyclone combustion chamber of being located at rear and front ends in the furnace shell 3 respectively; Be with the water pipe 4 that its two ends all are communicated with water interlayer 18 in the fire tube 5, water pipe 4 two ends are provided with its edge and the outer floral disc 20 of water pipe 4 is fixed, is used to support to burner hearth inner bag 7 sidewalls; The second eddy current cyclone firing is indoor to be provided with double-deck lateral partitions 21, water interlayer 18 extends between the double-deck lateral partitions 21, the both sides of edges of lateral partitions 21 is fixed with the sidewall and the bottom surface of burner hearth inner bag 7 respectively, and the second eddy current cyclone combustion chamber comprises last eddy current cyclone combustion chamber 25 and the following eddy current cyclone combustion chamber 26 that is separated by lateral partitions 21; Be provided with double-deck burner hearth inner bag 27 between burner hearth 6 front ends and the first eddy current cyclone combustion chamber 24, water interlayer 18 extends between the double-deck burner hearth inner bag 27; Burner hearth 6 front ends cut off by the double-deck burner hearth inner bag 27 and the first eddy current cyclone combustion chamber 24, and burner hearth 6 rear ends are communicated with following eddy current cyclone combustion chamber 26; Gap between water pipe 4 and the fire tube 5 constitutes fireworks channel 19, and fireworks channel 19 1 ends are communicated with the first eddy current cyclone combustion chamber 24, the other end is communicated with last eddy current cyclone combustion chamber 25 and following eddy current cyclone combustion chamber 26; When being provided with water pipe heated-separated wall 16. concrete enforcements in the burner hearth 6, described energy-saving high-efficient gas normal-pressure boiler also comprises burner 1, oxygenation mouth 2, delivery port 9, chimney 10, water level meter 11, see burner 12, explosion-proof valve 13, water return outlet 14, boiler foundation 15, air gauge 22, water-thermometer 23, wherein, burner 1, oxygenation mouth 2 is communicated with burner hearth 6 respectively, delivery port 9, water return outlet 14, water level meter 11, water-thermometer 23 is communicated with water interlayer 18 respectively, chimney 10, air gauge 22 is communicated with last eddy current cyclone combustion chamber 25 respectively, see burner 12 and last eddy current cyclone combustion chamber 25, following eddy current cyclone combustion chamber 26 is communicated with, and explosion-proof valve 13 is communicated with following eddy current cyclone combustion chamber 26; Water pipe heated-separated wall 16 runs through burner hearth inner bag 7 sidewalls by seven its two ends and the fiery water pipe of branch that is communicated with water interlayer 18 constitutes, and seven branch fire water pipe ecto-entads divide four rows to be parallel in the burner hearth 6. and described burner 1, oxygenation mouth 2, delivery port 9, chimney 10, water level meter 11, see burner 12, explosion-proof valve 13, water return outlet 14, boiler foundation 15, air gauge 22, water-thermometer 23 and be existing known configurations.

Claims (2)

1. energy-saving high-efficient gas normal-pressure boiler, comprise furnace shell (3), fire tube (5), burner hearth inner bag (7), the outer courage (8) of burner hearth, interior floral disc (17), the burner hearth (6) that surrounds by burner hearth inner bag (7), the water interlayer (18) that surrounds by the outer courage (8) of fire tube (5), burner hearth inner bag (7), burner hearth, interior floral disc (17), and the first eddy current cyclone combustion chamber (24) and the second eddy current cyclone combustion chamber of being located at the interior rear and front end of furnace shell (3) respectively; It is characterized in that: be with the water pipe (4) that its two ends all are communicated with water interlayer (18) in the fire tube (5), water pipe (4) two ends are provided with its edge and the outer floral disc (20) of water pipe (4) is fixed, is used to support to burner hearth inner bag (7) sidewall; The indoor double-deck lateral partitions (21) that is provided with of the second eddy current cyclone firing, water interlayer (18) extends between the double-deck lateral partitions (21), the both sides of edges of lateral partitions (21) is fixed with the sidewall and the bottom surface of burner hearth inner bag (7) respectively, and the second eddy current cyclone combustion chamber comprises last eddy current cyclone combustion chamber (25) and the following eddy current cyclone combustion chamber (26) that is separated by lateral partitions (21); Be provided with double-deck burner hearth inner bag (27) between burner hearth (6) front end and the first eddy current cyclone combustion chamber (24), water interlayer (18) extends between the double-deck burner hearth inner bag (27); Burner hearth (6) front end cuts off by the double-deck burner hearth inner bag (27) and the first eddy current cyclone combustion chamber (24), and burner hearth (6) rear end is communicated with following eddy current cyclone combustion chamber (26); Gap between water pipe (4) and the fire tube (5) constitutes fireworks channel (19), and fireworks channel (19) one ends are communicated with the first eddy current cyclone combustion chamber (24), the other end is communicated with last eddy current cyclone combustion chamber (25) and following eddy current cyclone combustion chamber (26).

2. energy-saving high-efficient gas normal-pressure boiler according to claim 1 is characterized in that: be provided with water pipe heated-separated wall (16) in the burner hearth (6).

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