CN2276616Y - Fuel water heater - Google Patents

Abstract

The utility model relates to a novel fuel water heating boiler. A boiler barrel is arranged in an outer boiler body, and a horizontal combustion chamber and a set of smoke and fire pipes used for the heat exchange are arranged in the boiler barrel. The combustion chamber is in a shrinking and expanding type. The right half part of the combustion chamber is provided with heat exchanging water pipes which are vertically arranged. The left end of the boiler body is provided with a front smoke chamber, and the right end is provided with a back smoke chamber. A pair of cross section smoke leading pipes in the shrinking and expanding type is arranged between the front smoke chamber and the combustion chamber, and the smoke leading pipes are communicated through two smoke channel communicating pipes. The shrinkage and the expansion of the smoke leading pipes are two to five. The structure is compact, and the heat exchange is sufficient. The utility model is suitable for the heating and the living hot water supply.

Description

A kind of novel fuel hot-water boiler

The utility model belongs to the fluid heater that heat-generating device is arranged, particularly a kind of novel fuel hot-water boiler.

Current in the boiler industry, having with the coal is fuel, this boiler contains flue dust and sulfide etc. because of combustion product, environmental pollution in the city, use is subjected to limiting in many ways, be exactly in addition to be fuel or to be the boiler of fuel with the fuel gas with oil (mainly being diesel oil), because the transportation of fuel oil and deposit more convenient than combustion gas, so oil burning boiler accommodation is big, the organization plan of existing oil burning boiler generally is the burner of selecting for use on the market, by body of heater, combustion chamber and control section constitute, and body of heater generally is the structure of the coal-burning boiler before having continued to use, combustion gas time of staying in boiler is short, and structure is not compact.

The purpose of this utility model is, design and produce a kind of novel fuel hot-water boiler, make combustion gas enter when leading smoke pipe the flow direction turnback from the combustion chamber, from leading smoke pipe when entering the heat exchange fire tube, flow direction is turnback again, with prolong smoke time of staying in body of heater, leads the section configuration of smoke pipe and repeatedly shrinks along axis, expansion, to improve the fuel gas flow turbulence state, carry out abundant heat exchange, keep compact overall structure simultaneously.

Novel fuel hot-water boiler of the present utility model, form by stove tube, combustion chamber, smoke-box, flue, be provided with horizontal cylinder type water tank in the body of heater, outer wall is established heat-insulation layer, the top is provided with hot water outlet, the bottom is provided with cold water inlet, is provided with horizontal combustion chamber and front smoke chamber and rear smoke chamber in body of heater, is connected with horizontal heat exchange fire tube between front smoke chamber and the rear smoke chamber.It is characterized in that, be provided with vertically disposed heat exchanging water pipe in the combustion chamber, its two ends are communicated with the body of heater water tank: be provided with two pairs of horizontal flue communicating pipes in the combustion chamber, the smoke pipe of leading by variable cross-section is communicated with front smoke chamber, and the contraction section of leading smoke pipe is provided with 2-5.

Using method of the present utility model is, combustion gas enters when leading smoke pipe from the combustion chamber by vertical setting of types heat exchanging water pipe gap, the flow direction turnback, when entering horizontal heat exchange fire tube through front smoke chamber again, flow direction is turnback again, discharge from flue through rear smoke chamber then, in the fuel gas flow overall process, during through the vertical setting of types water pipe and the water of water tank carried out a large amount of heat exchanges, when leading smoke pipe, repeatedly reducing by leading smoke pipe causes flue gas to be turbulence state, is beneficial to heat exchange, pass through horizontal heat exchange fire tube again, another carries out a large amount of heat exchanges, and omnidistance heat exchange is abundant, and cold water enters from bottom of furnace body, pass through reverse flow with combustion gas, carry out sufficient heat exchange, become hot water after, provide use from body of heater top hot water outlet.

The utility model has the advantages that combustion gas is turned through big twice and carried out heat exchange, compact conformation, heat exchange is abundant, and the smoke pipe of leading of variable cross-section is set, and causes the flue gas turbulent flow, has further improved the body of heater heat exchange efficiency.Be applicable to big and medium-sized cities heating, heat supply, domestic hot-water supply.

In conjunction with the accompanying drawings, a kind of novel fuel boiler provided by the utility model is further described: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the A-A profile of Fig. 1, Fig. 3 is the B-B profile of Fig. 1, and part of the present utility model is: stove tube 1, top hot water outlet 2, cooling water inlet 3, combustion chamber 4, front smoke chamber 5, rear smoke chamber 6, pyrotechnics pipe 7, the heat exchanging water pipe 8, body of heater water tank 9, is led smoke pipe 11 at flue communicating pipe 10, exhanst gas outlet 12, hoisting ring 13, deashing lid 14, water level meter tube connector 15, boiling water outlet 16, sensor tube connector 17, cleaning door 18, atmosphere entry 19, heat-insulation layer 20, external furnace body 21, support 22.

Stove tube 1 is a cylinder, constitute rear smoke chamber 6 at its right-hand member by double bottom, above rear smoke chamber, be provided with exhanst gas outlet 12, the bottom of rear smoke chamber is provided with cleaning door 18, the top of the right-hand member outer bottom of stove tube 1 is provided with removable deashing lid 14, be provided with the front smoke chamber 5 of a pie at the left end of stove tube 1, the top, left side of front smoke chamber has a cylinder to be connected with at the bottom of the stove tube, also be provided with a cleaning door 18 in the bottom of front smoke chamber, Lower Half at stove tube 1 is provided with combustion chamber 4, the combustion chamber is a cylinder that has 1 or 2 contractions and expansion segment, front smoke chamber 5 is passed in the combustion chamber, be provided with a removable disk at the bottom of the left end of combustion chamber, heart position is provided with the combustor installing hole therein, on the contraction section inwall of combustion chamber, post refractory material, be provided with two row heat exchanging water pipes 8 in the expansion segment left side of combustion chamber, left side the heat exchanging water pipe, wall place, top, the combustion chamber symmetry on right both sides be provided with four flue communicating pipes 10, combustion chamber 4 is led smoke pipe 11 and is communicated with (as shown in Figure 3) with two, leading smoke pipe 11 is the varying cross-section ducts with 2-5 contraction and expansion segment, the one end communicates with front smoke chamber 5, the upper part of the combustion chamber 4 in the stove tube 1, be provided with one group of pyrotechnics pipe 7 between front smoke chamber 5 and the rear smoke chamber 6, be provided with three cooling water inlets 3 in the bottom of stove tube 1, be provided with water level meter tube connector 15 on the right side of stove tube, boiling water outlet 16, sensor tube connector 17, be provided with two hot water outlets 2 at the top of stove tube 1, an atmosphere entry 19 and two hoisting rings 13, outer wall place at stove tube 1 is surrounded by one deck heat-insulation layer 20, the internal-combustion front smoke chamber of stove tube 1, rear smoke chamber, the pyrotechnics pipe, lead smoke pipe, the cavity of flue outside communicating pipe and heat exchanging water pipe's inner chamber composition body of heater water tank 9, stove tube outside is an external furnace body 21, and stove tube 1 and external furnace body are fixed on the support 22.

The utility model has the advantages that: in the combustion chamber, be provided with one and shrink and expansion segment, and post refractory material, guaranteed burning fully, and be unlikely and burn out inwall at the contraction section inner surface; Be provided with double heat exchanging water pipe at the combustion chamber right-hand part, sufficient heat exchange is carried out in the flame high-temperature region that makes; Lead smoke pipe by flue communicating pipe and two, flue gas is introduced front smoke chamber, flue gas flows to rear smoke chamber through one group of pyrotechnics pipe again, leading smoke pipe simultaneously is a kind of 2-5 of having contraction and dilatating and deformable passage, flue gas has changeed 180 degree for twice in flow process like this, increase the flow process of flue gas, just be increased in residing time in furnace, adding the variable cross-section of leading smoke pipe strengthens the turbulent flow of flue gas, thereby strengthened the heat exchange effect, front smoke chamber buries in the body of heater water tank in addition, also strengthens the heat exchange effect, and compact conformation.

The utility model description of drawings:

Fig. 1 is the structural representation of a kind of novel fuel hot-water boiler provided by the utility model;

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the B-B profile of Fig. 1;

The utility model embodiment be a caloric value be 500,000 kilocalories/hour oil-fired water-boiler, its structure as shown in drawings, overall thermal efficiency reaches 93%.

Claims (3)

1, a kind of novel fuel hot-water boiler, form by stove tube, combustion chamber, smoke-box, flue, be provided with horizontal cylinder type water tank in the body of heater, outer wall is established heat-insulation layer, the top is provided with hot water outlet, the bottom is provided with cold water inlet, is provided with horizontal combustion chamber and front smoke chamber and rear smoke chamber in body of heater, is connected with horizontal heat exchange fire tube between front smoke chamber and the rear smoke chamber; It is characterized in that be provided with vertically disposed heat exchanging water pipe in having the combustion chamber of shrinking with expanding, its two ends are communicated with the body of heater water tank: be provided with two pairs of horizontal flue communicating pipes in the combustion chamber, the smoke pipe of leading by variable cross-section is communicated with front smoke chamber.

2, a kind of novel fuel hot-water boiler as claimed in claim 1 is characterized in that, the contraction section of leading smoke pipe is provided with 2-5.

3, a kind of novel fuel hot-water boiler as claimed in claim 1 is characterized in that, the contraction of combustion chamber and expansion segment are 1-2.

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