CN2289991Y - Atmospheric smokeless gas boiler - Google Patents

Abstract

The utility model relates to an atmospheric smokeless gas boiler, which belongs to the combustion device. A combustion position is arranged on the upper part of a sealed combustion chamber (7) and produces gas, and a heat-exchanging chamber (26) is directly connected with the lower part of the sealed combustion chamber. An integration is formed by the heat-exchanging chamber and the lower part of the sealed combustion chamber. The fume outlet is arranged at the lower part of the heat-exchanging chamber (16); a sealed auxiliary heat-exchanging chamber (9) is connected in series in the flue; the heat-exchanging position of the auxiliary heat-exchanging chamber is arranged at the upper part of a chamber cavity, and fume outlet (22) is arranged below the heat-exchanging position. The utility model utilizes the characteristics of a gas boiler to further improve combustion, lower drain pollution and enhance the heat efficiency of the device. When the utility model works, the outlet of a chimney does not have visual smoke or dust, and gas used for energy resources of other devices is produced.

Description

Normal pressure anthracite gas boiler

The utility model belongs to combustion apparatus, relates generally to the normal pressure heating boiler.

Known gas boiler is a kind of scheme of improving combustion position, and the coal-fired combustion heat supplying of going again after coal gas takes place can improve the utilization of coal-fired calorific value, and be suitable for more inferior fire coal, reduces exhaust emission; But consistent with coal-burning boiler because of other structure do not given full play to its heat energy potentiality as yet, and discharge index still has the leeway of reduction.

The purpose of this utility model is to propose the further boiler structure scheme of performance gas boiler heat energy potentiality, reduction exhaust emission.

The purpose of this utility model is to realize like this.Normal pressure anthracite gas boiler comprises gas generator, this producer gas that burns is in order to the boiler of heat supply, for improving the secondary air system of combustion position, and conventional zero, the portion of each work operation, auxiliary.Should guarantee also that simultaneously boiler furnace is airtight cavity, body internal combustion position is positioned at the top of combustion chamber, and the outlet of combustion residual air body is located at the bottom of this combustion chamber.Like this, airtight cavity is favourable to be kept the temperature of burning and improves the volumetric efficiency of combustion space, and the outlet of combustion residual air body is located at the below then can reduce the residual air discharge heat of taking, and also helps improving the volumetric efficiency of combustion chamber; Though and the folding of air-flow road warp turns the smoke evacuation resistance that increased state, can also increase the chance that flue dust is detained when increasing air-breathing ability, therefore help the pollution that improves combustion position and reduce discharging, thereby the purpose of this utility model is achieved.

Combustion chamber described in the utility model and heat-exchanging chamber directly link up and down, and the combustion chamber is last, and heat-exchanging chamber is formed one down.Be advanced into heat-exchanging chamber under combustion residual air body is direct, the outlet of the combustion residual air body of the switch room that flows through is located at the below of heat-exchanging chamber.Like this, further reduce the position of combustion chamber combustion residual air body outlet, strengthened the aforesaid improvement effect of this measure; Simultaneously in heat-exchanging chamber, higher temperature province has been left for the heat exchange position, its exchange intensity of favourable increase; In the lower temperature distributed area air exit is set, the intensity that then helps reducing delivery temperature and further increase its top heat exchange realizes the purpose of this utility model better.

The utility model is connected in flue and is inserted secondary heat-exchanging chamber, and this chamber also is a closed cavity, and the top of chamber is located at its heat exchange position, and its exhanst gas outlet then is located at the bottom of chamber.The waste heat of exhaust combustion chamber can obtain utilizing at secondary heat-exchanging chamber like this, and the outlet under layout, can be when increasing intensity of heat exchange, for the sedimentation of grit in the discharging provides condition, thereby all improving once more aspect raising calorific value utilization and the reduction exhaust emission two, the purpose of this utility model is further realized

The utility model is established heat-resisting metal net in combustion chamber import department, this net can be used in the ignition combustion process or the temporary transient coal gas gaseous mixture that is interrupted input, thereby actively keep fired state, increase the mixing ability that enters coal gas gaseous mixture in the combustion chamber, the pressure of smooth combustion chamber import department coal gas mist.So as to improving the runnability of this equipment.

The utility model also is provided with the sealing structure for water of control coal gas path between gas generator and boiler.When water seal was in closed state, the coal gas of producer can be drawn the energy as other heating equipment, as the energy of using as boiler or the kitchen range of cooking a meal.

Passage and floss hole that the utility model gas generator top is provided with cavity volume independently and links with the boiler integral outer.This cavity volume can be used to provide drinking water.

The utility model can be that the various combinations of such scheme are to be suitable for different needs.

The utility model utilizes structural simple change, changed running status in the combustion process, made burning through coal gas generation, combustion chamber, after heat-exchanging chamber lower flue, secondary heat-exchanging chamber, six heat exchanging process of upper flue, just finish heat supply work, its final discharging can be significantly less than discharge standard, and the also corresponding raising of the thermal efficiency, this programme is provided with the auxilliary genus structure that enlarges the scope of application in addition.

Accompanying drawing provides structural representation of the present utility model.

Fig. 1 is the vertical profile diagrammatic sketch of 300,000 kilocalories of/hour normal pressure anthracite gas boilers, and promptly the B-B of Fig. 2 analyses and observe;

Fig. 2 analyses and observe for the A-A of Fig. 1;

Fig. 3 analyses and observe for the C-C of Fig. 1;

Fig. 4 analyses and observe for the D-D of Fig. 1;

Fig. 5 is the connect signal of water seal with appendix.

Among the figure: (1) fire door, ash door (sealing) (2) gas generators (3) gas outlet tubes (4) secondary air channels (5) wire nettings (6) are got ash, go up the explosion-proof cleaning door of chimney (11) (12) boiler horizontal water tube (13) boiler (14) coal gas fairlead valve (15) combustor exit (16) outlet (17) gas outlet tube (18) overflow pipe (valve) (19) water inlet pipe (valve) (20) sealing radiator (21) blowdown discharging valve (22) and go up chimney inlet (23) heat-exchanging chamber (24) igniting fire hole the vertical secondary switch room of flue (9) (10), venting (7) combustion chamber (8)

Below in conjunction with embodiment the utility model is described further.

Present embodiment is the normal pressure anthracite gas boiler of 300,000 kilocalories of per hour heat supplies, and coal gas can be drawn, and as the source of the gas of boiling water, the kitchen range of cooking a meal usefulness coal gas, the gas generator hearth area is 0.6 meter ², equipment consumption coal is marked coal/time for 55 kilograms.

These routine gas generator 2 outlets link through a horizontal tube 3 and pot 7 tops, a heatable brick bed combustion chamber, and secondary air channel 4 also links with combustion chamber 7 through managing 3 simultaneously.Be provided with resistant to elevated temperatures wire netting 5 in combustion chamber gas entry 15 cross-section, combustion chamber 7 as combustion chamber, and is provided with igniting fire hole 24 for the sealing chamber.The heat-exchanging chamber (23) that having below the combustion chamber directly links makes one, two Room directly communicate; The indoor water flowing tube bank that is provided with the dislocation arrangement is as the main heat exchange position of this example.Under heat-exchange tube bundle, be provided with the outlet 16 of combustion gas and get grey venting 6.Exhanst gas outlet links through a pipe tunnel 8 and a side that is located at the secondary switch room 9 of 7 tops, combustion chamber, and secondary switch room also is an airtight chamber, is provided with the water flowing tube bank of heat exchange and the chimney 10 that communicates with the outer atmosphere of stove at an upper portion thereof.This example is located at the below that water flowing is restrained with the exhanst gas outlet 22 that chimney 10 links, and promptly the end opening of chimney 10 stretches into secondary switch room, until the below of water flowing heat-exchange tube bundle.Also be provided with explosion-proof cleaning door 11 in the bottom, side of secondary switch room.

Whole gas generator 2, gas outlet tube 3, combustion chamber 7, heat-exchanging chamber 23, secondary heat-exchanging chamber 9 and last chimney 10 and connection related accessories etc. thereof all place within the boiler chamber, and the space in the chamber all is full of heat exchange medium water.It more than is this routine primary structure.

During use, the gas generator 2 that at first ignites, institute's soft coal gas be through gas outlet tube 3, with the secondary of secondary air channel 4 the wind comes from mix after, enter the top of combustion chamber 7 through wire netting 5, self-ignition fire hole 24 is lighted air inlet, finishes the main process of further mixing and burning.As long as the control of coal gas amount suitably, in the confined space of combustion chamber 7, be easier to the burning condition that forms abundant mixing, keeps high temperature.After high-temperature flue gas after the combustion chambers burn has only the tube bank of the heat-exchanging chamber 23 through being positioned at the below, combustion space, could be overflowed by the outlet 16 of tube bank below, the dislocation of this resistance and tube bank itself is arranged, and provides condition for increase exchange intensity at this position again.The combustion gas of overflowing enters secondary switch room 9 through vertical flue 8, can finish further heat exchange in secondary switch room.Because the tube bank of heat exchange in secondary switch room 9 is arranged in top, helps absorbing the heat that retains in the combustion gas; Be located at the bottom of secondary switch room again because of the inlet 22 of upper flue 10, for the waste heat of keeping indoor top or reduce and then be beneficial to hot flue gas by a side of discharging heat that flue gas carries and providing condition and connecting of vertical flue 8 to be located at secondary switch room and at first be full of chamber top, all these makes institute's exhaust body can only be the burning residual air of passing through after the further heat exchange.So far finished this routine groundwork process.What wherein be located at combustion chamber and secondary switch room respectively gets ash, venting 6 and explosion-proof ash removing opening 11, but both safety anti-explosives, the dust of being convenient to clear up in the respective process again and being detained.The burning residual air outlet of fixing two positions all is positioned at the below of heat-exchange tube bundle, this layout is except that increasing intensity of heat exchange, also help the flow resistance that increases entrained dust powder in the burning residual air, under the effect of resistance, collision and the pipeline flow-direction conversion restrained, dust is settled down to greatest extent.

Second example structure is consistent with first example, just gas exit pipeline 3 reconfigurations is gone in the sealing radiator 20, and the outlet of this water tank meets gas entry 15 places in top first example of combustion chamber 7.Casing sets up discharging valve 21 from bottom to top separately simultaneously, water inlet pipe valve 19 and overflow pipe valve 18, and the outlet of gas outlet tube 3 is located at the bottom of this water tank, is lower than the certain depth of overflow valve control liquid level.

This routine gas generator is provided with in addition and other purposes such as the kitchen range of cooking a meal links pipeline and control valve 14.

When needs are drawn generation coal gas, during as the source of the gas of external kitchen range etc., the water intaking valve 19 of can outwarding winding makes to be full of water in the water tank, until the height of overflow pipe, and blocks the path of gas outlet tube 3 with this, can be by this producer to external apparatus air feed.After discharging the water of water tank by discharging valve 21, gas outlet tube 3 can recover the course of work as example 1 through water tank and combustion chamber 7 UNICOMs.

This example also is provided with 2 pipes 12 that laterally penetrate on gas generator top in addition, and the one end is stifled weldering in producer, and the end water tank 13 outer with being located at whole boiler side is communicated with in addition, constitutes this routine boiling water system, increases a kind of secondary purpose.

The utility model can be according to actual needs, makes the corresponding all size of heat capacity, but structural principle all with last with, after model machine was on probation, chimney outlet was not seen flue dust, the thermal efficiency significantly improves, and is well received.

Claims (10)

1, normal pressure anthracite gas boiler comprises gas generator (2), the boiler of this producer gas with heat supply burns, for improving the secondary air system (4) of combustion position, and routine zero, portion, the auxiliary of each work operation, it is characterized in that: boiler furnace is airtight cavity (7), body internal combustion position is positioned at the top of combustion chamber, and the outlet (16) of combustion residual air body is positioned at the bottom of combustion chamber.

2, boiler as claimed in claim 1 is characterized in that: combustion chamber (7) directly are connected to form one up and down with heat-exchanging chamber (26), and the combustion chamber is last, and heat-exchanging chamber is following, and the combustion residual air body outlet of the heat-exchanging chamber of flowing through is located at the below (16) of heat-exchanging chamber.

3, boiler as claimed in claim 1 or 2, it is characterized in that in flue series connection inserts secondary heat-exchanging chamber (9), chamber bottom (22) also is located at for its cavity of sealing, its exhaust outlet in this chamber.

4, boiler as claimed in claim 1 or 2 is characterized in that the gas inlet section of combustion chamber (7), establishes resistant to elevated temperatures wire netting (23).

5, boiler as claimed in claim 3 is characterized in that the gas inlet section of combustion chamber (7), establishes resistant to elevated temperatures wire netting (23).

6, boiler as claimed in claim 1 or 2 is characterized in that also being provided with the water seal switch (20) of control piper break-make in the gas conveying tube road between gas generator (2) and combustion chamber (7).

7, boiler as claimed in claim 3 is characterized in that also being provided with the water seal switch (20) of control piper break-make in the gas conveying tube road between gas generator (2) and combustion chamber (7).

8, boiler as claimed in claim 4 is characterized in that also being provided with the water seal switch (20) of control piper break-make in the gas conveying tube road between gas generator (2) and combustion chamber (7).

9, boiler as claimed in claim 5 is characterized in that also being provided with the water seal switch (20) of control piper break-make in the gas conveying tube road between gas generator (2) and combustion chamber (7).

10, boiler as claimed in claim 1 is characterized in that gas generator top is provided with independent cavity volume (12), reaches the passage (13) and the floss hole that are interlinked to the outside with boiler body.