CN102721170A

CN102721170A - Horizontal hot water boiler

Info

Publication number: CN102721170A
Application number: CN2012102228668A
Authority: CN
Inventors: 蒋恩良
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2012-10-10

Abstract

A horizontal hot water boiler belongs to the technical field of boilers. According to the boiler, the running time and the running distance of high-temperature smoke before entering a heat absorber of a smoke and fire tube are prolonged, so that fuels can be burned sufficiently; the phenomenon that accumulated carbon falls on a fuel bed and is smoky in a vertical fire tube boiler can be avoided when the accumulated carbon is removed; and during the initial running period of the horizontal hot water boiler, the phenomenon that condensate water falls on the fuel bed so as to affect the burning can not occur, an upper smoke chamber selects a water cooling structure, and a lower smoke chamber selects a non-water-cooling structure, so that the rear of a lower tube plate is obviously larger than that of an upper tube plate, a smoke tube positioned on the lower tube plate is far away from the edge of the tube plate, so that the stress caused by thermal expansion can be alleviated. A vertical baffle plate is additionally arranged on the upper smoke chamber of the heat absorber, so that two strokes of the high-temperature smoke in the heat absorber are realized. A hand hole door for removing accumulated carbon is arranged on the upper surface of the upper smoke chamber with two strokes of smoke tube bundles, the hand hole door for removing accumulated carbon can be opened to remove the accumulated carbon, and the accumulated carbon can be removed without opening the hand hole door for removing the accumulated carbon by adopting a pre-embedded smoke tube brush structure.

Description

Horizontal hot-water boiler

Affiliated technical field

The present invention relates to a kind of hot-water boiler, especially relate to a kind of civilian horizontal hot-water boiler.

Background technology

Vertical vertical fire tube structure hot-water boiler is by the combustion chamber, lower perforated plate, pyrotechnics tube bank, upper perforated plate, compositions such as last smoke-box.Combustion chamber and heat-absorbing structure belong to conjoined structure up and down; Its advantage is that floor space is little; Compact conformation, but not enough place is also arranged: 1 gets into the pyrotechnics tube bank because the high-temperature flue gas that produces during the fuel combustion on the fire grate directly washes away lower perforated plate, and localized hyperthermia and thermal expansion stress are inevitable; Distance from the fire grate to the lower perforated plate is short relatively, and when Coal-fired capacity increases, during the combustion intensity increasing, it is insufficient almost inevitable to burn; 2 in clear pyrotechnics pipe of boiler operatiopn stage during carbon distribution, can occur that carbon distribution drops on the coal seam and is lighted and occur the phenomenon of smoldering then; If 3 vertical vertical fire tube hot-water boilers combustion intensity at the beginning of each run is not enough strong; And if this moment, water temperature was lower; Can generate more condensed water in the endothermic tube, condensed water can drop on the fuel bed again easily, and then has influence on the fired state of combustion chamber fuel.

Summary of the invention

In order to overcome the technical deficiency of conventional hot water boiler; The present invention provides a kind of vertical fire tube hot-water boiler; The technical problem that this boiler will solve is: let lower perforated plate following no longer be the combustion chamber but independently play smoke-box; Let lower perforated plate no longer be in hot environment, with regard to not occurring that carbon distribution drops on the fuel bed and the phenomenon of smoldering, can not occur also in addition that condensed water drops on the fuel bed and the phenomenon of influence burning during so clear carbon distribution; Aspect clear carbon distribution, guarantee that smoke pipe brush handle is vertical with the pyrotechnics pipe, just can help removing the carbon distribution in the pyrotechnics pipe more; Increase running time and the range ability of high-temperature flue gas before getting into the pyrotechnics tube heat sucker, can realize the abundant burning of fuel; Use the multiple-pass heat-absorbing structure and can under the situation of compact conformation, effectively reduce exhaust gas temperature.

The technical solution adopted for the present invention to solve the technical problems is

Combustion chamber and heat dump are relatively independent, about arrange the expansion chamber that above the combustion chamber, is furnished with buffer board and forms by buffer board.The buffer board of top, combustion chamber; Expansion chamber; And the last smoke-box of pyrotechnics tube heat sucker upper perforated plate top is together as the running route of high-temperature flue gas before getting into the pyrotechnics tube bank; Increase the running time and the range ability of high-temperature flue gas, realized the abundant burning of fuel, also strengthened the heat dump endothermic effect of heat-absorbing structure before.

Combustion chamber and heat dump adopt left and right sides structures arranged; During clear carbon distribution, carbon distribution drops on play smoke-box, because the temperature of smoke-box is hanged down relatively down; The temperature of following smoke-box bottom more under burning-point, the phenomenon of smoldering so the carbon distribution burning can not occur can guarantee the carbon distribution in the clear pyrotechnics pipe time; Because it is not the combustion chamber that pyrotechnics is restrained the following of lower perforated plate, can not influence the combustion position of combustion chamber so can guarantee the condensed water at the beginning of the boiler operatiopn yet.

Last smoke-box selects water-cooling structure, and following smoke-box selects non-water-cooling structure, and the area of lower perforated plate is wanted obvious area greater than upper perforated plate like this, and the pyrotechnics pipe that is in lower perforated plate can be far away apart from the edge of tube sheet, helps alleviating the stress that thermal expansion produces.

The setting up and have or not running route and the stroke of decision high-temperature flue gas in the pyrotechnics pipe of vertical clapboard in the smoke-box up and down, multirow layer structure can effectively reduce exhaust gas temperature, also lets boiler structure compacter; Miniature boiler can use two row layer heat-absorbing structure, when the power of boiler is bigger, for fear of the too high quantity that can increase vertical clapboard in the smoke-box up and down as required of exhaust gas temperature, makes it to become the multiple-pass structure.

Outlet flue is located at the side of smoke-box on second stroke; There is carbon distribution hand hole door clearly the top of last smoke-box; Can opening clearly, carbon distribution hand hole door carries out the cleaning of carbon distribution; The size requirements of clear carbon distribution hand hole door realizes the pyrotechnics pipe all standing to the area under one's jurisdiction, also can adopt built-in type smoke pipe brush configuration not opening clear carbon distribution under the situation of carbon distribution hand hole door clearly, and so clear carbon distribution is convenient.

Operation principle of the present invention is: on two stroke boilers; The high-temperature flue gas that produces during fuel combustion on the fire grate is operation upwards; Washing away combustion chamber wall and combustion chamber binds; Outlet gets into the last smoke-box of first stroke pyrotechnics tube bank through buffer board structure and high-temperature flue gas afterwards, under the draft of chimney, gets into the first stroke pyrotechnics downwards and restrains, get into afterwards public under smoke-box, the second stroke pyrotechnics restrain, smoke-box on second stroke, at last through the side go out tobacco pipe and chimney is discharged to outdoor.

The invention has the beneficial effects as follows: combustion chamber and heat dump be relatively independent, about layout, comparatively ideal bags height, cushioning fender and expansion chamber also have the abundant burning that exists for of going up smoke-box to create condition; And the pyrotechnics tube bank adopts two row layer structure can under the situation of compact conformation, effectively reduce exhaust gas temperature, the raising thermal efficiency; Carbon distribution hand hole door is clearly arranged above the last smoke-box, and clear carbon distribution is convenient, and because smoke-box also is relatively independent down, does not drop on the phenomenon on the fuel bed so carbon distribution can not occur during clear carbon distribution; The smoke-box temperature is low relatively under also having, for setting up of built-in type smoke pipe brush provides possibility; Because independently combustion chamber heat absorption; Effectively increased the pyrotechnics tube heat sucker endotherm area of heat-absorbing structure before; Alleviated the burden of pyrotechnics tube bank in the heat dump; The phenomenon that lower perforated plate in the vertical structure boiler bears localized hyperthermia can not occur, not only reduce stress but also reduced the generation of incrustation scale, improve service life.Advantage of the present invention in sum is rational in infrastructure, and the thermal efficiency is high, and is easy to use, long service life.

Description of drawings

Fig. 1 is the vertical section figure of horizontal vertical fire tube hot-water boiler

Fig. 2 is the cross-sectional view of horizontal vertical fire tube hot-water boiler

1. combustion chamber inner bags among the figure, 2. combustor outer casing, 3. fin panel casing, 4. heat dump shell; 5. buffer board, 6. expansion chamber, 7. high-temperature flue gas outlet, 8. pyrotechnics pipe; 9 upper perforated plates, 10. lower perforated plate, smoke-box on 11., 12. times smoke-boxes; 13. last smoke-box inner bag, 14. vertical clapboards, 15. go out tobacco pipe, 16. clear carbon distribution hand hole doors.

The specific embodiment

The present invention is divided into relatively independent combustion chamber and radiator two parts.The expansion chamber 6 that above the combustion chamber, has buffer board 5 and buffer board to constitute has high-temperature flue gas outlet 7 to lead to smoke-box on first stroke of radiator at expansion chamber near the place of radiator.

Be fin panel casing 3 between combustion chamber inner bag 1 and the shell 2, the place of binding, combustion chamber also is a fin panel casing, and the shell of heat dump 4 and combustor outer casing belong to the structure of one in fact, and the interior working medium of combustor outer casing and heat dump shell also communicates.

The pyrotechnics tube bank of being made up of pyrotechnics pipe 8 is to go up smoke-box 11 above the upper perforated plate between upper perforated plate 9 and lower perforated plate 10, is smoke-box 12 down below the lower perforated plate.The condensed water that forms once in a while in carbon distribution under the pyrotechnics Guan Zhongqing and the pyrotechnics pipe all is to drop on down smoke-box.

Last smoke-box selects water-cooling structure, is a water-cooled interlayer between last smoke-box inner bag 13 and the shell, and the upper perforated plate specification is relatively littler; Following smoke-box is a single layer structure, in order to prevent the damage of high temperature to shell, can suitably set up flame retardant coating, but not selecting water-cooling structure, purpose is to let the pore at tube sheet and its edge reach larger distance.

Vertical clapboard 14 in the smoke-box can change the traffic direction of flue gas in the pyrotechnics tube bank up and down, require vertical clapboard as required up and down smoke-box seal into the space of different size, make high-temperature flue gas according to predetermined direction and running.Two stroke structures have only last smoke-box that a vertical clapboard is arranged, and three stroke structures are except last smoke-box has a vertical clapboard, and following smoke-box also has a vertical clapboard, and the four-stroke structure, following smoke-box has a vertical clapboard, and last smoke-box has two vertical clapboards.

Go out the side that tobacco pipe 15 is positioned at smoke-box on second stroke; Clear carbon distribution hand hole door 16 is positioned at binding above the plate of smoke-box top; Adopt salable structure, require to open the hand hole door and can remove the carbon distribution in all the pyrotechnics pipes in the hand hole student face coverage through the smoke pipe brush.Also can use pre-buried smoke pipe brush and carry out carbon distribution clearly not opening under the situation of carbon distribution hand hole door clearly.

Claims

1. a horizontal hot-water boiler mainly is made up of combustion chamber and heat dump two parts; It is characterized in that: the horizontal type structure of arranging about combustion chamber and heat dump adopt; Relatively independent; Increased running time and the range ability of high-temperature flue gas before getting into the pyrotechnics tube heat sucker; Realize the abundant burning of fuel, also strengthened the endothermic effect of heat dump heat-absorbing structure before; The pyrotechnics pipe of heat dump part vertically interts in last lower perforated plate; The top of upper perforated plate is to go up smoke-box; No longer include the combustion chamber below the lower perforated plate but the relatively low following smoke-box of temperature; Can guarantee that the condensed water in the pyrotechnics pipe at the beginning of the boiler operatiopn can not influence the combustion position of combustion chamber, the carbon distribution that falls in the time of yet can guaranteeing clear carbon distribution can not lighted and smoldered; Last smoke-box selects water-cooling structure, and following smoke-box selects non-water-cooling structure, and the area of lower perforated plate is wanted obvious area greater than upper perforated plate like this, and the pyrotechnics pipe that is in lower perforated plate can be far away apart from the edge of tube sheet, helps alleviating the stress that thermal expansion produces; Setting up of vertical clapboard determines running route and the stroke of high-temperature flue gas in the pyrotechnics pipe in the smoke-box up and down, and multirow layer structure can effectively reduce exhaust gas temperature, also allows boiler structure compacter.

2. horizontal hot-water boiler according to claim 1 is characterized in that: clear carbon distribution hand hole door is arranged in the upper surface of smoke-box, and can opening clearly, carbon distribution hand hole door carries out carbon distribution clearly.