CN202432679U

CN202432679U - Efficient horizontal shell type boiler

Info

Publication number: CN202432679U
Application number: CN2012200310131U
Authority: CN
Inventors: 李云金; 胡新明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-31
Filing date: 2012-01-31
Publication date: 2012-09-12
Anticipated expiration: 2022-01-31

Abstract

The utility model relates to a boiler, in particular to an efficient horizontal shell type boiler. The boiler comprises a furnace, a shell and a water tank. The shell comprises a high-temperature shell and a low-temperature shell, wherein smoke pipes which are communicated are installed in the high-temperature shell and the low-temperature shell, a safety valve, a water inlet and a vapor outlet are arranged on each of the shells, and a check valve is arranged at each water inlet position; and the high-temperature shell is installed over the furnace, the low-temperature shell is installed outside the furnace and communicated with the water tank, and the high-temperature shell and the low-temperature shell are in serial connection through a water pipe communicating the water inlet of the high-temperature shell with the vapor outlet of the low-temperature. The water is a laddering water tank through the communication of multi-stage independent water containers. The efficient horizontal shell type boiler has the advantages of being simple in structure, low in production cost, easy to popularize and use, high in heat efficiency, capable of reducing heat energy loss and achieving energy saving and emission reducing effects, and particularly suitable for combustion of biomass fuels.

Description

Efficient horizontal smaller hard flour pancake boiler

Technical field

The utility model relates to a kind of boiler, particularly a kind of efficient horizontal smaller hard flour pancake boiler.

Background technology

Original horizontal boiler has burner hearth, shell on the structure, be provided with smoke pipe in the shell, and the flue gas that comes out from smoke pipe is through economizer heat exchange once more, after air preheater is discharged chimney.Because this type of boiler only independently carries out heat exchange in the water receptacle with two in economizer in shell, the length of shell is longer, and volume is bigger; Water temperature rise is slower during heating; Reaching needs the temperature of the water supply steam supply time spent longer, because of have only two independently water receptacle and an air preheater carry out heat exchange, the flue-gas temperature of discharge is higher; Heat-energy losses is bigger, and the thermal efficiency is lower.

Summary of the invention

The technical problem that the utility model will solve is: a kind of efficient horizontal smaller hard flour pancake boiler is provided, and the thermal efficiency that exists with the solution prior art is lower, the weak point that flue-gas temperature is high, heat-energy losses is bigger of discharge.

The technical scheme that solves the problems of the technologies described above is: a kind of efficient horizontal smaller hard flour pancake boiler; Comprise burner hearth, shell; Described efficient horizontal smaller hard flour pancake boiler also includes water tank, and described shell comprises high temperature shell and low temperature shell, is provided with the smoke pipe of connection in this high temperature shell and the low temperature shell; Be respectively equipped with safety valve, water inlet and steam outlet on each shell, each water inlet is equipped with check-valves; Described high temperature shell is installed in the top of burner hearth, and the low temperature shell is located at the outer and joining water box of burner hearth, and this high temperature shell and low temperature shell are cascaded through the water pipe that is communicated with the outlet of high temperature shell water inlet and low temperature shell steam.

The further technical scheme of the utility model is: described water tank is for being communicated with the laddering water tank of ladder that forms by multistage independently water receptacle; Be equipped with the smoke pipe of connection in the independently water receptacles at different levels; And be provided with delivery port and the water inlet that is connected with ball-cock assembly on the independently water receptacles at different levels respectively; Wherein the water inlet of first order water receptacle is located at the top of first order water receptacle, and is connected with the water pipe that feeds water naturally; The afterbody water receptacle the water inlet of the cross current low temperature shell of delivery port through having water pump.

Because adopt technique scheme, the efficient horizontal smaller hard flour pancake boiler of the utility model is compared with existing smaller hard flour pancake boiler, has following beneficial effect:

1, the thermal efficiency is high:

Because the utility model is that original shell is divided into two; Therefore high temperature shell low temperature shell two shells outer with being located at burner hearth that are divided into the burner hearth top, can make shortened greatly by the shell length of burner hearth heating; Reduce the shell volume significantly; Water temperature rise is very fast when making heating, shortens to reach the needed time of water supply steam supply temperature, thereby can improve the thermal efficiency; In addition; Owing to be provided with check-valves in high temperature shell water inlet between high temperature shell and the low temperature shell; Make water and vapour to flow to the high temperature shell from the low temperature shell; Water through the heat exchange of the thermal radiation and the high-temperature flue gas of burner hearth, can rise coolant-temperature gage rapidly in the high temperature shell, from the steam outlet of high temperature shell, discharges then; And the high-temperature flue gas of discharging from burner hearth is after high temperature shell and water carry out heat exchange; Get into the low temperature shell through smoke pipe and carry out heat exchange, get into water tank at last again and discharge, flue gas has passed through multistage heat exchange; Its temperature is reduced significantly, so its thermal efficiency is very high.

2, reached the effect of energy-saving and emission-reduction:

Because the flue gas of the utility model has passed through multistage heat exchange, the flue-gas temperature of discharging from chimney is lower, thereby can reduce heat-energy losses, has reached the effect of energy-saving and emission-reduction.

3, applied widely:

This boiler is not only applicable to fire coal, also is particularly suitable for firing biomass fuel, and its scope of application is very extensive.

4, simple in structure, production cost is low:

The utility model relatively simple for structure need not economizer and air preheater, can directly form with original horizontal smaller hard flour pancake boiler transformation, and its production cost is lower; And because the low temperature shell of the utility model does not receive the heat radiation of flue gas, but its thickness attenuate, thus can further reduce production costs, make this boiler be easy to promote the use of.

Below, in conjunction with accompanying drawing and embodiment the technical characterictic of the efficient horizontal smaller hard flour pancake boiler of the utility model is further described.

Description of drawings

The structural representation of the efficient horizontal smaller hard flour pancake boiler of Fig. 1-Fig. 4: embodiment one said the utility model,

Wherein,

Fig. 1: front view, the A-A cutaway view of Fig. 2: Fig. 1, the B-B cutaway view of Fig. 3: Fig. 1,

The C-C cutaway view of Fig. 4: Fig. 1.

In above-mentioned accompanying drawing, direction shown in the arrow is a flue gas flow direction, and the label of each part is following in the accompanying drawing:

The 1-burner hearth, 2-high temperature shell, the outlet of 3-steam, the 4-safety valve, the 5-smoke pipe,

The 6-water inlet, the 7-check-valves, 8-low temperature shell, the 9-water tank, 901-first order water receptacle,

902-second level water receptacle, 903-afterbody water receptacle, the 10-water inlet, the 11-delivery port,

The 12-water pump, the 13-ball-cock assembly.

The specific embodiment

Embodiment one:

Disclosed among Fig. 1-Fig. 4 is a kind of efficient horizontal smaller hard flour pancake boiler; This boiler comprises burner hearth, shell and water tank 9; Described shell is made up of high temperature shell 2 and low temperature shell 8; Be provided with the smoke pipe 5 of connection in high temperature shell 2 and the low temperature shell 8, be respectively equipped with safety valve 4, water inlet 6 and steam outlet 3 on each shell, each water inlet 6 place is equipped with check-valves 7; Described high temperature shell 2 is installed in the top of burner hearth 1, and low temperature shell 8 is located at burner hearth 1 outer and joining water box 9, and this high temperature shell 2 is cascaded through the water pipe that is communicated with the outlet of high temperature shell water inlet and low temperature shell steam with low temperature shell 8.Described water tank 9 for by three grades independently water receptacle be communicated with the laddering water tank of ladder that forms; These three grades independently water receptacle be respectively arrange together first order water receptacle 901, second level water receptacle 902 and afterbody water receptacle 903 of level; Be equipped with the smoke pipe 5 of connection in the independently water receptacles at different levels; Flue gas in afterbody water receptacle 903 smoke pipes is communicated with the smoke pipe of low temperature shell, and the flue gas of first order water receptacle 901 smoke pipes is discharged from chimney through air-introduced machine; And be provided with delivery port and the water inlet that is connected with ball-cock assembly 13 on the independently water receptacles at different levels respectively, wherein the water inlet 10 of first order water receptacle 901 is located at the top of first order water receptacle 901, and is connected with the water pipe that feeds water naturally; The afterbody water receptacle the water inlet 6 of the cross current low temperature shell 8 of delivery port 11 through having water pump 12.

The operation principle of the said efficient horizontal smaller hard flour pancake boiler of present embodiment is following:

The high-temperature flue gas of discharging from burner hearth is after high temperature shell and water carry out heat exchange; Get into the low temperature shell through smoke pipe and carry out heat exchange; And then get into sequential flow that water tank press afterbody water receptacle 903, second level water receptacle 902, first order water receptacle 901 successively to, after air-introduced machine from chimney discharge (direction of arrow shown in Figure 1 is flue gas flow direction), so flue gas has passed through multistage heat exchange; Its temperature is reduced significantly, and its thermal efficiency is very high.And water and vapour can only flow to the high temperature shell from the low temperature shell, and water through the heat exchange of the thermal radiation and the high-temperature flue gas of burner hearth, can rise coolant-temperature gage rapidly in the high temperature shell, from the steam outlet of high-temperature region, discharge then.

And the operation principle of water tank is following:

Naturally outer feedwater gets into the water inlet height that first order water receptacle 901 shown in Figure 4, second

level water receptacle

902 and 903, three ball-cock assemblys of afterbody water receptacle are controlled first order water receptacle 901, second level water receptacle 902 and afterbody water receptacle 903 respectively successively, when the high temperature shell need supply water; Water is sucked into water pump by afterbody water receptacle 903, is pressed into low temperature shell 8, gets into high temperature shell 2 again; During peak level when high temperature shell 2 reaches work; Water pump quits work, and afterbody water receptacle 903 is because water, and water level reduces; Ball-cock assembly is opened; Water flows into afterbody water receptacle 903 by second level water receptacle 902, and in like manner, water is by first order water receptacle 901 inflow second level water receptacles 902.

As a kind of conversion of present embodiment one, warm area shell in can also being in series with between described high temperature shell 2 and the low temperature shell 8.

Another conversion as present embodiment one; Described water tank 9 can also be for being communicated with the laddering water tank of ladder that forms by multistage independently water receptacle such as secondary, level Four, Pyatyi, six grades; But the independently water receptacle levels at different levels of this water tank 9 are arranged; Also can be staged and arrange, also can be other form and arrange.

As another conversion of present embodiment one, smoke pipe quantity and arrangement positions in described high temperature shell 2, low temperature shell 8 and the water tank 9 can change arbitrarily according to actual needs.

Claims

1. efficient horizontal smaller hard flour pancake boiler; Comprise burner hearth, shell; It is characterized in that: described efficient horizontal smaller hard flour pancake boiler also includes water tank (9), and described shell comprises high temperature shell (2) and low temperature shell (8), is provided with the smoke pipe (5) of connection in this high temperature shell (2) and the low temperature shell (8); Be respectively equipped with safety valve (4), water inlet (6) and steam outlet (3) on each shell, each water inlet (6) locates to be equipped with check-valves (7); Described high temperature shell (2) is installed in the top of burner hearth (1); Low temperature shell (8) is located at the outer and joining water box (9) of burner hearth (1), and this high temperature shell (2) and low temperature shell (8) are cascaded through the water pipe that is communicated with the outlet of high temperature shell water inlet and low temperature shell steam.

2. efficient horizontal smaller hard flour pancake boiler according to claim 1; It is characterized in that: described water tank (9) is for being communicated with the laddering water tank of ladder that forms by multistage independently water receptacle; Be equipped with the smoke pipe (5) of connection in the independently water receptacles at different levels; And be provided with delivery port (11) on the independently water receptacles at different levels respectively and be connected with the water inlet (10) of ball-cock assembly (13); Wherein the water inlet (10) of first order water receptacle (901) is located at the top of first order water receptacle (901), and is connected with the water pipe that feeds water naturally; The afterbody water receptacle the water inlet (6) of the cross current low temperature shell (8) of delivery port (11) through having water pump (12).