CN1018016B

CN1018016B - Multipurpose vertical boiler

Info

Publication number: CN1018016B
Application number: CN 90103552
Authority: CN
Inventors: 何积顺; 晓民
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-14
Filing date: 1990-05-14
Publication date: 1992-08-26
Also published as: CN1047559A

Abstract

The present invention discloses a multifunctional vertical boiler for heating and supplying hot water and stream. The boiler is not provided with a heating surface in a boiler chamber, and a smoke gas baffle plate is arranged in a smoke channel. When circulation is enforced, the circulation direction of water in the boiler is opposite to the natural rising direction of hot water. Compared with vertical boilers which are widely used at present, the present invention improves heat efficiency by 10% more or less, the effects of smoke elimination and dust removal are improved, and one machine with multiple functions can be realized.

Description

Multipurpose vertical boiler

The present invention relates to heating and hot water, steam are supplied multi-purpose vertical boiler.

The vertical boiler of domestic extensive enforcement at present all is to be the Design Mode of agent structure with shell and flue, edit as Ministry of Machine-Building Industry, by in " engineering goods catalogue " the tenth fourth phase of publishing China Machine Press in June, 1986, the 163rd page, introduced the vertical boiler of two types of LHG and LSG, the structure of these two kinds of vertical boilers mainly is by shell (comprising end socket), flue (comprising end socket), water pipe or fire tube, horizontal fixed fire grate and impact tube are formed.Flue and shell form water leg, as radiation heating-surface.When doing the steam boiler use, stove water is done the Natural Circulation motion in stove, when doing the hot-water boiler use, cold water (or backwater) enters the water leg that shell and flue form from the bottom, hot water is heated the back rising along flue or water-cooling wall, flow out from the boiler top, to be heated the back mobile direction that rises naturally consistent with cold water.The boiler of this pattern, because around the burner hearth is direct heating surface, the raising of fire box temperature is restricted, not only burning of coal rate of result is lower, and the real thermal efficiency of boiler generally also is lower than 60%, simultaneously, because the flue structure of this boiler own is too simple, its smoke medicining dust-removing effect is also bad.

The objective of the invention is to solve the low and bad problem of smoke abatement and dust control of the present vertical boiler thermal efficiency, and realize that heating and hot water, steam supply use more.

The object of the present invention is achieved like this: said multipurpose vertical boiler comprises furnace wall and water circulation system, the bottom of furnace wall is a burner hearth, and the top of furnace wall is flue, and chimney is arranged above the flue, fire grate is arranged below the burner hearth, coal feeding hole is arranged on the side furnace wall of burner hearth and remove cinder notch.Water circulation system is by feed pipe, outlet pipe, blow-off pipe, atmospheric communicating pipe, boiled water pipe, manometer tube, thermometer table pipe, circulation canal between water gage and return pipe and the outlet pipe and heating surface are formed, three-way cock is arranged on the atmospheric communicating pipe, on outlet pipe and the return pipe valve is arranged, peripheral passage between return pipe and the outlet pipe and heating surface are by holding water tank, convection bank, collection case and outer circulating tube are formed, the appearance water tank is positioned at the top of flue, feed pipe, return pipe, atmospheric communicating pipe, water gage, manometer tube, temperature gauge pipe, inspection opening is installed in and holds on the water tank, boiled water pipe is arranged at the bottom that holds water tank, and the calm water tank of chimney vertically passes.Convection bank is positioned at flue, is in to hold between water tank and the collection case, and the collection case is positioned at the bottom of flue, and outlet pipe, blow-off pipe are contained on the collection case.Outside furnace wall, there is outer circulating tube to be connected and holds between water tank and the collection case, valve is housed on the outer circulating tube.In flue, be furnished with cantilever-shaped deflection plate, an end contacts with furnace wall, an end cantilever, convection bank is passed from deflection plate and is fixedly connected, on the furnace wall of the top of deflection plate and furnace wall contact jaw the ash disposal mouth is arranged.The collection case can be divided into a plurality of diversity casees and a general collection case, and each diversity case communicates with the general collection case, and outlet pipe and blow-off pipe are contained on the general collection case.

Below in conjunction with embodiment technical scheme of the present invention and using method are further specified: Fig. 1 is a multifunctional vertical boiler structure schematic diagram of the present invention

Fig. 2 is the left view of Fig. 1

Fig. 3 is the A-A cutaway view of Fig. 2

Fig. 4 is the water circulation system schematic diagram

Fig. 5 is the B-B cutaway view of Fig. 4

As shown in the figure, the furnace wall of embodiments of the invention is made up of exterior wall 5 and refractory wall 6,9.The furnace wall bottom is a burner hearth 21, and top is flue 23, and the passage between chimney arch 28 and the refractory wall 9 is the exhanst gas outlet 22 of burner hearth; The following of burner hearth is inclined grate 11 and fire-grating frame 12, coal feeding hole 27 arranged on the sidewall of burner hearth and remove cinder notch 10, and there are feed pipe 1 and valve J thereof in the top of boiler for holding water tank 2, holding on the water tank ₁, return pipe 3 and valve J thereof ₃, atmospheric communicating pipe 24 and three-way cock valve X, boiled water pipe 29 and valve Q thereof ₂, water gage 17, manometer tube 14, temperature gauge pipe 30, inspection opening 31, chimney 4 calm water tanks vertically pass.Hold the convection bank of being made up of 52 pipes under the water tank 19, the lower end of convection bank communicates with diversity case 8,15,18, and the diversity case communicates with general collection case 26.The general collection case has outer circulating tube 16 to communicate holding between water tank 2 and the general collection case outside furnace wall, and valve J is arranged on the outer circulating tube ₂, outlet pipe 13 and valve Z thereof and blow-off pipe 25 and valve Q thereof are arranged on the general collection case ₁, and

hand hole

32,33 is arranged, hand hole 34 is arranged on the diversity case 8.Three cantilever-shaped deflection plates 20 are arranged in flue, on the furnace wall of flue part, four ash disposal mouths 7 are arranged.Fuel adds from coal feeding hole 27, and in burner hearth 21 internal combustion, high-temperature flue gas enters flue 23 through furnace outlet 22, under the deflection plate effect, and tortuous the rising, heated convection tube bank 19 is discharged from chimney 4 then.

When using as hot-water heating boiler, make the cock X on the atmospheric communicating pipe be in atmosphere connection position, close the valve J on the outer circulating tube 16 ₂With the valve Q on the boiled water pipe ₂, open the valve J on the feed pipe 1 ₁Feedwater is opened valve Z on the outlet pipe simultaneously to whole heating system water-filling, when feeding water certain water level, closes feed pipe, at this moment return pipe 3 and valve J thereof ₃, hold water tank 2, convection bank 19, diversity case 8,15,18, general collection case 26, outlet pipe 13, constitute a closed circuit with outside heating system, forced circulation under the circulating pump effect.

Be used as the steam boiler time spent, the valve X on the atmospheric communicating pipe is in atmosphere and is communicated with the position, closes outlet pipe valve Z, return pipe valve J ₃With boiling water pipe valve Q ₂, open the valve J on the outer circulating tube 16 ₂, open feedwater pipe valve J ₁Feedwater is closed to certain water level again, after the water boiling, will be in the three-way cock X that is communicated with the position with atmosphere and open to using vapour position steam supply.

When using as water for bathing supply stove, make atmospheric communicating pipe 24 be communicated with atmosphere, close the return pipe valve J that holds on the water tank ₃With boiling water pipe valve Q ₂, open the water inlet pipe valve J that holds on the water tank ₁With the water outlet pipe valve Z on the general collection case, hot water pumps to the appointed place by circulating pump, if water temperature is not high enough, can termination of pumping, and when reaching certain altitude, water level closes feedwater pipe valve J ₁, open the valve J on the outer circulating tube 16 ₂, at this moment holding water tank, convection bank, diversity case, general collection case, outer circulating tube and constitute a closed circuit, water is recycled heating, when reaching uniform temperature, starts circulating pump and pumps to the place to use.Make termination of pumping when holding cistern water level and dropping to certain altitude when pump draws water, feed water by feed pipe 1 again, the repetition said process is so that the boiler continuous operation.

When using as boiling water supply stove, make atmospheric communicating pipe 24 be communicated with atmosphere, close water outlet pipe valve Z and backwater pipe valve J ₃, open outer circulation pipe valve J ₂, at this moment holding water tank 2, convection bank 19, diversity case 8,15,18, general collection case 26, outer circulating tube 16 formations one loop, water is by after boiled, emit by boiled water pipe 29, use up, feed water again by feed pipe 1 as boiling water, as producing steam in the stove, emit by atmospheric communicating pipe 24.

The present invention is directed to the shortcoming that a large amount of at present vertical boiler combustion temperature in hearth that use are low and the cigarette journey is short, according to conducting heat below 1200 ℃ the time, radiation heating-surface calorific intensity and the essentially identical phenomenon of convection heating surface calorific intensity in the stove, adopted the measure that improves fire box temperature, arranges convection heating surface and prolongation flue more, improve boiler thermal output 10% than existing vertical boiler, simultaneously, the present invention has also adopted in the hot water heating process and the water back ascent direction opposite forced flow direction of being heated, thereby can improve film coefficient of heat transfer 30%.Because fire box temperature height of the present invention, under the effect of ligulate chimney arch 28 and inclined grate 11, make the abundant after-flame of combustible in the flue gas, because the effect of deflection plate 20, not only prolong flue, also played a part the sedimentation flue dust, therefore, improve smoke medicining dust-removing effect, and can make hot water heating, boiling water supply, water for bathing supply, steam supply multiple use.

Claims

1, a kind of have heating and hot water, steam is supplied multi-purpose vertical boiler, comprise furnace wall and water circulation system, the bottom of furnace wall is a burner hearth, top is flue, coal feeding hole is arranged on the furnace wall of burner hearth side and remove cinder notch, fire grate is arranged at the bottom of burner hearth, chimney is arranged above the flue, water circulation system comprises inspection opening, hand hole, feed pipe, return pipe, outlet pipe, boiled water pipe, blow-off pipe, water gage, manometer tube, temperature gauge pipe, atmospheric communicating pipe, and path between return pipe and the outlet pipe and heating surface, feed pipe wherein, return pipe, boiled water pipe, valve is all arranged on the blow-off pipe, the invention is characterized in:

(1), holds the top that water tank is positioned at boiler flue, the collection case is positioned at the bottom of boiler water cycle system, return pipe is located at and holds on the water tank, outlet pipe is located on the general collection case, between appearance water tank and general collection case outer circulating tube is housed also, valve is housed on the outer circulating tube, convection bank is in the flue, and be connected in and hold between water tank and the diversity case

(2), the ligulate chimney arch is housed between burner hearth and flue,

(3), cantilever-shaped flue gas deflection plate is housed in flue, on the top furnace wall of deflection plate and furnace wall contact position the ash disposal mouth is arranged,

(4), the three-way cock valve is arranged on the atmospheric communicating pipe,

2, according to claim 1 have heating and hot water, steam are supplied multi-purpose vertical boiler, it is characterized in that described collection case is divided into diversity case and general collection case, and the diversity case has a plurality of, and each all communicates with the general collection case, and outlet pipe is contained on the general collection case.