CN203629008U - A reverse firing water jacket boiler - Google Patents

Abstract

The utility model discloses a reverse combustion type water jacket boiler, including the furnace body, run through the flame path of furnace body and with the chimney of flame path intercommunication, still be equipped with the flame blocking wall between flame path and chimney, open on flame blocking wall upper portion has the flame hole, the flame path still communicates through the flame hole with the chimney. According to the technical scheme, the flame blocking wall is additionally arranged between the chimney and the flame path, the flame blocking wall extends from top to bottom, the smoke channel is arranged below the flame blocking wall, and according to the air heat flow principle, the maximum amount of heat can be remained in the flame path when the boiler is used, so that the heat emission is reduced, and the use efficiency is improved; meanwhile, in order to avoid the defects that the flame blocking wall obstructs air circulation to cause unsmooth ignition and harmful gas is not easy to exhaust, the upper part of the flame blocking wall is provided with a flame leading hole, air is led through the flame blocking hole to form a rapid air flowing channel, so that the ignition of a hearth is easy, and the harmful gas is assisted to exhaust.

Description

A reverse firing water jacket boiler

technical field

The utility model belongs to the technical equipment field of heating boilers, in particular to a reverse-fired water jacket boiler.

Background technique

At present, in the heating boiler, how to improve the combustion heating efficiency of the boiler and how to fully exchange the heat of the fuel with the water jacket of the boiler have become the focus of development in this industry. Ordinary boiler chimneys are directly connected to the furnace, and the fuel heat and flue gas in the furnace are directly discharged out of the furnace. This kind of boiler has the lowest thermal efficiency and the worst heating. The reverse-fired water jacket boiler is provided with a fire path between the furnace and the chimney, and a water jacket is added in the fire path to prolong the time of heat in the furnace body and improve thermal efficiency, but its heating effect is still not ideal.

Utility model content

In order to make up for the above-mentioned defects of low boiler efficiency and unsatisfactory heating, the fire path is too long and it is difficult to ignite, the utility model proposes a reverse-fired water jacket boiler.

The technical solution for realizing the above-mentioned beneficial effects is a reverse-fired water jacket boiler, which includes a furnace body, a fire channel running through the furnace body, and a chimney connected to the fire channel, and a flame retaining wall is also provided between the fire channel and the chimney. A flame-inducing hole is opened on the upper part of the flame-retaining wall, and the fire path and the chimney are also communicated through the flame-introducing hole. In this technical solution, a flame-retaining wall is added between the chimney and the flue, and the flame-retaining wall extends from top to bottom, and a flue gas channel is provided at the bottom. According to the principle of air heat flow, the heat can be maximized when the boiler is in use. It is left in the fire channel, which reduces the heat emission and improves the use efficiency; at the same time, in order to avoid the defects that the flame-retaining wall hinders the air circulation, the ignition is not smooth, and the harmful gas is not easy to discharge. The flame-shielding hole drains air and forms a rapid air flow channel, which makes it easier to ignite the furnace and assists the discharge of harmful gases.

A water jacket is arranged in the furnace body, the fire channel, the side wall of the chimney and the flame retaining wall, and the water jacket is connected with a pipe communicating with the outside. In the technical solution, the water jackets are distributed in multiple positions that can be in contact with heat, so as to ensure sufficient heat exchange and improve use efficiency.

There is a hearth inside the furnace body, ash hanging plate is set under the hearth, and ash drawer is set under the ash hanging plate. In this scheme, ash boards are used to block fuel leakage, and ash pumping is used to clean up fuel ashes at any time to ensure that the boiler can be used continuously.

The diameter of the flame drawing hole is 1.5cm-5cm, which runs through the flame retaining wall and is sealed and isolated from the water jacket in the flame retaining wall. In this technical solution, the diameter of the flame hole is most suitable in the case of 1.5cm-5cm, which will not affect the work of the water jacket and ensure the need for air circulation.

A smoke filter is also arranged on the top of the chimney. The smoke filter is used to uniformly remove harmful substances in the smoke and dust discharged from the chimney, so as to prevent excessive air pollution and protect the environment.

The smoke filter includes filtrate and an outer chimney immersed in the filtrate, and a fan is also arranged on the side wall of the outer chimney. In this technical solution, water is generally used as the filtrate, which is convenient and cheap, and the fan will extract the flue gas when the filtrate is too thick and the flue gas cannot be discharged.

A liquid outlet pipe is also provided at the bottom of the smoke filter, and the liquid outlet pipe communicates with the filtrate through a valve. In the technical solution, the liquid outlet pipe is used to ensure that the filtrate can be drained and replaced regularly to ensure the filtering effect.

The smoke filter is also provided with a liquid level gauge. Use a liquid level gauge to keep an eye on the height of the filtrate at any time, so that the filtrate will not be too much or too little, resulting in the defect that the fan cannot suck the gas through the liquid surface or the filtration efficiency will decrease.

A drain pipe is arranged on the filter, and the drain pipe is arranged above the liquid level of the filtrate. In the technical solution, the liquid discharge pipe ensures that the filtrate will not overflow the safety line, discharges excess liquid, and ensures safe use.

A hot water pipe communicating with the outside is also distributed in the furnace body and the chimney. The hot water pipe further completes the heat exchange function and assists the heating work.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

In the figure, 1. Furnace body; 2. Fire channel; 3. Chimney; 4. Flame retaining wall; 5. Flame introduction hole; 6. Water jacket; Smoke filter; 11. fan; 12. outer chimney; 13. filtrate; 14. hot water pipe; 15. drain pipe; 16. liquid level gauge; 17. liquid outlet pipe;

Detailed ways

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

In conjunction with Fig. 1, an embodiment of the present utility model. A reverse-fired water jacket boiler, comprising a furnace body 1, a fire passage 2 passing through the furnace body, and a chimney 3 connected to the fire passage. A flame retaining wall 4 is also provided between the fire passage and the chimney, and the upper portion of the flame retaining wall is opened There is a flame-introducing hole 5, and the fire path is also communicated with the chimney by the flame-introducing hole. A water jacket 6 is arranged in the furnace body, the flue, the side wall of the chimney and the flame retaining wall, and the water jacket is connected with a pipeline communicating with the outside world. In this embodiment, a furnace 7 is provided inside the furnace body, a furnace wall 8 is provided below the furnace, and an ash pump 9 is provided below the ash hanging board. The diameter of the flame drawing hole is 1.5cm-5cm, which runs through the flame retaining wall and is sealed and isolated from the water jacket in the flame retaining wall. A smoke filter 10 is also arranged on the top of the chimney. The smoke filter includes filtrate 13 and an outer chimney 12 immersed in the filtrate, and a fan 11 is also arranged on the side wall of the outer chimney. The bottom of the smoke filter is also provided with a liquid outlet pipe 17, and the liquid outlet pipe communicates with the filtrate through a valve. The smoke filter is also provided with a liquid level gauge 16 . A drain pipe 15 is arranged on the filter, and the drain pipe is arranged above the liquid level of the filtrate. A hot water pipe 14 communicating with the outside is also distributed in the body of heater and the chimney.

In this embodiment, the smoke filter can be installed or not installed. After installation, the smoke and dust will be absorbed by the filtrate without pollution. If it is not installed, the boiler can be used as an ordinary boiler.

In this embodiment, an auxiliary chimney can also be connected between the outer chimney and the air filter, and the auxiliary chimney can ensure normal smoke exhaust when the fan fails to work. The outer chimney is usually closed and opened when the fan is not working.

When the above embodiment is in use, the water jacket is filled with water, and the hot water pipe is also filled with water, and the hot water pipe and the outlet pipe of the water jacket are respectively connected to the heating equipment. The water flow of the water jacket is slow, and the effect is slow and the effect is long, while the flow of the water pipe is fast. The combination of the two ensures that the response time of the heating equipment is short and the lasting effect is long. Ignite the boiler, and after the boiler is in normal operation, the harmful particles and harmful gases in the smoke will be filtered out through the filter liquid of the smoke filter when the smoke is discharged. Simultaneously, the ash plate 18 is set in the furnace body, and after a period of use, the ash plate can be used for cleaning and deashing the inside of the boiler. In order to prevent the flue gas from passing through the filtrate under normal pressure, a fan is fixed on the outer chimney, and the fan is used to create a negative pressure on the outer chimney. After the filtrate is siphoned to a certain height, the flue gas can flow smoothly from the filtrate from bottom to top. discharge.

In summary, the above are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (9)

1. A counter-fired water jacket boiler, comprising a body of heater (1), a fire passage (2) running through the body of heater and a chimney (3) communicated with the fire passage, characterized in that, between the fire passage and the chimney A flame-retaining wall (4) is provided, and a flame-inducing hole (5) is opened on the upper part of the flame-retaining wall. The fire path and the chimney are also connected through the flame-extracting hole. A water jacket (6) is provided, and the water jacket is connected with a pipeline communicating with the outside world. the 2. The reverse-fired water jacket boiler according to claim 1, characterized in that a furnace (7) is provided inside the furnace body, a furnace wall (8) is provided below the furnace, and an ash pump (9) is provided below the ash hanging plate. ). the 3. The reverse-firing water jacket boiler according to claim 2, characterized in that the diameter of the flame drawing hole is 1.5cm-5cm, runs through the flame retaining wall and is sealed and isolated from the water jacket in the flame retaining wall. the 4. The reverse-fired water jacket boiler according to claim 1, characterized in that a smoke filter (10) is also arranged at the top of the chimney. the 5. counter-fired water jacket boiler according to claim 4, is characterized in that, described smoke filter comprises filtrate (13) and the outer chimney (12) that immerses filtrate, is also provided with on the outer chimney side wall fan (11). the 6. The counter-fired water jacket boiler according to claim 5, characterized in that a liquid outlet pipe (17) is provided at the bottom of the smoke filter, and the liquid outlet pipe communicates with the filtrate through a valve. the 7. The reverse-fired water jacket boiler according to claim 5, characterized in that the smoke filter is also provided with a liquid level gauge (16). the 8. The reverse-fired jacket boiler according to claim 5, characterized in that a drain pipe (15) is provided on the filter, and the drain pipe is arranged above the liquid surface of the filtrate. the 9. The reverse-fired jacket boiler according to claim 1, characterized in that, a hot water pipe (18) communicating with the outside is also distributed in the furnace body and the chimney. the

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