CN201206888Y

CN201206888Y - Directly heated gas boiler

Info

Publication number: CN201206888Y
Application number: CNU2007200818006U
Authority: CN
Inventors: 韩建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-06
Filing date: 2007-11-06
Publication date: 2009-03-11
Anticipated expiration: 2017-11-06

Abstract

A direct-heating gas boiler is composed of a boiler shell, a combustion chamber, a spiral pipe, a secondary water distribution porous plate, a primary water distribution porous plate, a water inlet pipe, a flue gas outlet, a gas inlet and a water outlet; when natural gas and air enter the gas inlet and are ignited, the water around the combustion chamber is heated, while the water surface in the boiler is heated by the flame ejected from the spiral pipe at the same time; and the flame ejected from the spiral pipe is also bounced back to heat the water sprayed from the secondary water distribution porous plate; the flue gas then heats up the water sprayed from the primary water distribution porous plate and is finally exhausted through the flue gas outlet; therefore, after the heat of the flue gas is absorbed by the water for several times, the temperature of the exhausted gas is significantly reduced; the temperature of the flue gas exhausted by an ordinary boiler is about 200 DEG C, while that of the utility model is below 70 DEG C, so that the thermal efficiency of the boiler is greatly improved, without environmental pollution. The utility model has simple structure, simplifies the manufacturing process, saves a great deal of water pipe steel materials and reduces energy consumption and costs, which is a better boiler for domestic hot water supply.

Description

The directly-heated type gas fired-boiler

Technical field:

The utility model belongs to the directly-heated type gas fired-boiler that life is heated with employing natural gas in the hot water boiler.

Background technology

In daily life, it is very general to use boiler that water is heated the supply that ensures hot water in the life, and most what use is water-tube boiler, promptly is equipped with many water pipes in stove, make the energy with coal or natural gas, utilize the flame and the flue gas of coal or combustion of natural gas that the water in managing is heated, this mode of heating makes heat diffusion, the thermal efficiency of boiler is lower, especially the flue-gas temperature of Pai Chuing is higher, and is also bigger to the waste of the energy, so need to improve.

Summary of the invention:

The purpose of this utility model provides a kind of with fuelled with natural gas in the clean energy resource, and the high directly-heated type gas fired-boiler of boiler thermal output.

The technical solution of the utility model as shown in Figure 1, in shell 10, be equipped with the combustion chamber 1 of big cask stack shape, lead to up and down in the bucket, the top seals, the upper outside of combustion chamber 1 is equipped with several helix tubes 3, the mouth of pipe of helix tube is tangentially above the boiler water surface, 1 bottom, combustion chamber is equipped with air inlet 11, air inlet 11 passes shell 10 and is connected with outer tube, the top, top of combustion chamber 1 is equipped with the secondary water distribution orifice plate 4 that is fixed on the shell 10, the centre of secondary water distribution orifice plate 4 has poly-burner 5, has micropore on every side, above secondary water distribution orifice plate 4, be fixed on the shell 10 once water distribution orifice plate 6, the middle part of a water distribution orifice plate 6 is furnished with sieve shape through hole, has smoke ventilator on every side, and shell 10 tops are smoke-boxes 7, smoke-box 7 crown centers have outlet flue 8, the next door is equipped with water inlet pipe 9, and the effluent pipe mouth of water inlet pipe 9 is above the sieve shape through hole of a water distribution orifice plate 6, and the sidewall of shell 10 middle part has delivery port 2.

After gas-air entered air inlet 11 and lighted the same day, natural gas is 1 internal combustion in the combustion chamber, heated the water of 1 outside, combustion chamber, combustion gas simultaneously makes flame rotation ejection contact with the water surface by helix tube 3, water is heated, flame bounce-back this moment upwards, through with drench by secondary water distribution orifice plate 4 under water contact, water is heated, fire smoke gases passes poly-burner 5 and sprays to water under a water distribution orifice plate 6 drenches and contact, water promptly absorbs the heat of flue gas, and flue gas residual air enters smoke-box 7 through a water distribution orifice plate 6 smoke ventilator on every side, is discharged by outlet flue 8.

Water in the utility model boiler, except the metal drum wall by combustion chamber 1 conducts heat, add outside the hot water, also have the direct heating of flame and twice trickle of helix tube 3 ejections to carry out heat exchange, the heat of flue gas is more fully absorbed by water, therefore the flue-gas temperature of outlet flue 8 discharges is reduced to and is had only now below 70 ℃ by about 200 ℃ of general boiler, has improved the consumption that boiler thermal output has been saved natural gas so widely.

Description of drawings

Fig. 1. directly-heated type gas fired-boiler structural representation;

Wherein: 1. combustion chamber; 2. delivery port; 3. helix tube; 4. secondary water distribution orifice plate;

5. poly-burner; 6. water distribution orifice plate; 7. smoke-box; 8. outlet flue;

9. water inlet pipe; 10. shell; 11. air inlet.

The specific embodiment:

The utility model is implemented by technique scheme, the size of boiler designs according to the different water yields, the angle of the tangential water surface of the spiral mouth of pipe and the water surface is 20 degree approximately, spray water surface heating on the one hand, make flame through water-reflected on the other hand, the water under the secondary water distribution orifice plate above spraying to drenches, and flame is the revolving poly-burner of going out, upwards drench water down and contact with a water distribution orifice plate, and by the through hole inflow smoke-box of a water distribution orifice plate surrounding.Helix tube generally can be established 5-7.

Water surface elevation in the utility model shell is controlled the inflow of water inlet pipe by being installed in water level controller on the shell inwall, keeps the water level in the boiler.

The utility model is simple in structure, has saved a large amount of metallic water pipe, and simplified manufacturing technique has reduced cost, is to live preferably to use the boiler of hot water.

Claims

1. directly-heated type gas fired-boiler, by combustion chamber (1), delivery port (2), smoke-box (7), outlet flue (8), water inlet pipe (9), shell (10), air inlet (11) is formed, it is characterized in that being equipped with in the shell (10) combustion chamber (1) of big cask stack shape, the upper outside of combustion chamber (1) is equipped with helix tube (3), the mouth of pipe of helix tube (3) is tangentially above the boiler water surface, the bottom of combustion chamber (1) is equipped with air inlet (11), air inlet (11) passes shell (10) and is connected with outer tube, top, top, combustion chamber (1) is equipped with the secondary water distribution orifice plate (4) that is fixed on the shell (10), the centre of secondary water distribution orifice plate (4) has poly-burner (5), have micropore on every side, in secondary water distribution orifice plate (4) top, be fixed on the shell (10) once water distribution orifice plate (6), the middle part of a water distribution orifice plate (6) is furnished with sieve shape through hole, have smoke ventilator on every side, shell (10) top is smoke-box (7), the crown center of smoke-box (7) has outlet flue (8), the next door is equipped with water inlet pipe (9), the mouth of pipe of water inlet pipe (9) is the sieve shape through hole top at a water distribution orifice plate (6), the sidewall middle part of shell (10) has delivery port (2).