CN219063498U - Flue gas treatment device of biomass fuel boiler - Google Patents

Abstract

The utility model discloses a biomass fuel boiler flue gas treatment device which comprises a treatment box, wherein a boiler flue gas outlet pipe is arranged at the flue gas inlet end of the treatment box, a heat exchange box communicated with the boiler flue gas outlet pipe is arranged in the treatment box, a water inlet pipe is arranged at the liquid inlet end of the heat exchange box, a water outlet pipe is arranged at the liquid outlet end of the heat exchange box, and a spray header corresponding to the flue gas outlet end of the heat exchange box is arranged in the treatment box. The beneficial effects of the utility model are as follows: the heat exchange recovery can be carried out to the heat of the high-temperature flue gas in the boiler play tobacco pipe through establishing replacement hot box, inlet tube and outlet pipe matched with, carries out heat recovery and utilizes, avoids the waste of heat energy, and through setting up shower head and recess matched with can carry out twice to the flue gas and handle, effectively reduce the content of smoke and dust in the flue gas, avoid the smoke and dust to scatter and cause the pollution to the environment, can effectively make heat exchange box reclaimed water and shunt tubes fully contact through setting up the shunt tubes of multiunit equidistance array, effectively improve the heat exchange efficiency of heat exchange box.

Description

Flue gas treatment device of biomass fuel boiler

Technical Field

The utility model relates to the technical field of boiler flue gas treatment, in particular to a biomass fuel boiler flue gas treatment device.

Background

The boiler adopts the combustion equipment-the reciprocating grate which is most suitable for biomass fuel combustion, the boiler has larger space compared with the traditional boiler hearth in structural design, and simultaneously, the reasonable secondary air is arranged, which is favorable for instantaneous precipitation and massive volatilization and full combustion when biomass fuel is combusted, the boiler can be provided with a fuel (gas) ignition burner to realize ignition automation, the feeding, combustion, deslagging, water supply and ignition of the boiler can be automatically controlled, the operation is very convenient, the boiler is provided with an automatic ash removing device, the accumulated ash on the heating surface of the boiler can be timely removed, and the high-efficiency and stable operation of the boiler is ensured.

When the high-temperature flue gas generated during the use of the existing biomass combustion boilers is discharged in the air, the flue gas contains more heat, the loss of heat energy is larger, and the flue gas contains more smoke dust and impurities, so that certain pollution is caused to the environment.

Disclosure of Invention

The utility model aims to overcome the defects that the high-temperature flue gas generated when the biomass combustion boiler in the prior art is used is discharged in the air, the flue gas contains more heat, the loss of heat energy is larger, the flue gas contains more smoke dust and impurities, and certain pollution is caused to the environment, and provides a flue gas treatment device of the biomass fuel boiler.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a biomass fuel boiler flue gas processing apparatus, including the treatment case, the boiler goes out the tobacco pipe to handle the income cigarette end of case and installs the heat transfer case that is linked together with the boiler and go out the tobacco pipe in the treatment case, and the inlet tube is installed to the feed liquor end of heat transfer case, and the outlet pipe is installed to the play liquid end of heat transfer case, installs the shower head corresponding with the heat transfer case play cigarette end in the treatment case, and the draught fan is installed to the play cigarette end of treatment case, and the recess is installed to the inlet end of draught fan, and the waste liquid pipe is installed to the play liquid end of treatment case.

The further technical scheme is that a plurality of groups of shunt tubes which are equidistantly arranged are arranged in the heat exchange box, and the shunt tubes are communicated with the smoke outlet pipe of the boiler.

The further technical scheme is that the filter screen is rotationally connected with the induced draft fan, a motor is arranged on the treatment box, the output end of the motor extends into the treatment box and is provided with a gear, and the filter screen is provided with a toothed ring which is meshed and connected with the gear.

The further technical proposal is that the filter screen is provided with grooves.

Further technical proposal is that the inner bottom wall of the treatment box is provided with an inclined part corresponding to the waste liquid pipe.

The further technical proposal is that a heat preservation layer is arranged on the smoke outlet pipe of the boiler.

Further technical scheme is, install the observation window on the processing case, install the maintenance door on the observation window.

The utility model has the following advantages: according to the utility model, the heat of high-temperature flue gas in the boiler smoke outlet pipe can be subjected to heat exchange recovery by arranging the replacement hot box, the water inlet pipe and the water outlet pipe to be matched, the heat is recycled, the waste of heat energy is avoided, the flue gas can be treated twice by arranging the spray header and the grooves to be matched, the content of smoke dust in the flue gas is effectively reduced, the pollution of the environment caused by the smoke dust emission is avoided, and the water in the heat exchange box can be fully contacted with the shunt pipes by arranging a plurality of groups of shunt pipes in an equidistant array, so that the heat exchange efficiency of the heat exchange box is effectively improved.

Drawings

Fig. 1 is a schematic cross-sectional view of the structure of the present utility model.

Fig. 2 is a schematic front view of the present utility model.

In the figure, 1, a treatment box; 2. a smoke outlet pipe of the boiler; 3. a heat exchange box; 4. a water inlet pipe; 5. a water outlet pipe; 6. a spray header; 7. a filter screen; 8. an induced draft fan; 9. a groove; 10. a motor; 11. a shunt; 12. a waste liquid pipe; 13. an inclined portion; 14. a heat preservation layer; 15. a maintenance door; 16. and an observation window.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, the biomass fuel boiler flue gas treatment device comprises a treatment box 1, a boiler flue gas outlet pipe 2 is arranged at the flue gas inlet end of the treatment box 1, a heat exchange box 3 communicated with the boiler flue gas outlet pipe 2 is arranged in the treatment box 1, a water inlet pipe 4 is arranged at the liquid inlet end of the heat exchange box 3, a water outlet pipe 5 is arranged at the liquid outlet end of the heat exchange box 3, a spray header 6 corresponding to the flue gas outlet end of the heat exchange box 3 is arranged in the treatment box 1, a draught fan 8 is arranged at the flue gas outlet end of the treatment box 1, a groove 9 is arranged at the air inlet end of the draught fan 8, a waste liquid pipe 12 is arranged at the liquid outlet end of the treatment box 1, heat exchange recovery can be carried out on heat of high-temperature flue gas in the boiler flue gas outlet pipe 2 by arranging the heat exchange box 3, heat recovery is carried out, waste of heat energy is avoided by arranging the spray header 6 and the groove 9 to be matched, effectively reduces the content of smoke dust in the smoke and avoids pollution to the environment caused by the scattered smoke dust, a plurality of groups of flow dividing pipes 11 which are equidistantly arranged are arranged in the heat exchange box 3, the flow dividing pipes 11 are communicated with the smoke outlet pipe 2 of the boiler, water in the heat exchange box 3 can be fully contacted with the flow dividing pipes 11 through the arrangement of the plurality of groups of flow dividing pipes 11 which are equidistantly arranged, the heat exchange efficiency of the heat exchange box 3 is effectively improved, the filter screen 7 is rotationally connected with the induced draft fan 8, the motor 10 is arranged on the treatment box 1, the output end of the motor 10 extends into the treatment box 1 and is provided with a gear, the filter screen 7 is provided with a toothed ring which is engaged and connected with the gear, the filter holes on the filter screen 7 are driven to rotate by the motor 10, the smoke can be uniformly filtered, the filter performance of the filter screen 7 is prevented from being influenced by the blockage of part of the filter holes on the filter screen 7, the filter screen 7 is provided with grooves 9, through setting up recess 9 can be convenient for collect filter screen 7 filterable smoke and dust, the clearance in later stage of being convenient for, the interior bottom wall of processing case 1 is provided with the tilting portion 13 corresponding with waste liquid pipe 12, make things convenient for the outflow of waste liquid through setting up tilting portion 13, install heat preservation 14 on the boiler goes out tobacco pipe 2, reduce the thermal dissipation in the boiler goes out tobacco pipe 2 through setting up heat preservation 14, install observation window 16 on the processing case 1, install maintenance door 15 on the observation window 16, can be convenient for observe the operation of processing incasement equipment through setting up maintenance door 15 and observation window 16, be convenient for in time maintain processing incasement 1 equipment.

The working process of the utility model is as follows: in the in-process that uses the device, the flue gas that biomass fuel boiler produced enters into heat transfer box 3 through boiler play tobacco pipe 2, fully exchange heat with the water in the heat transfer box 3 under the effect of shunt tube 11 in heat transfer box 3, heat exchange water carries through inlet tube 4 and outlet pipe 5, the flue gas enters into in the processing box 1 after the heat transfer of heat transfer box 3 is finished, shower head 6 sprays the processing to the flue gas, handle the material such as smoke and dust in the flue gas, the treatment waste liquid flows out through waste liquid pipe 12, the flue gas filters through recess 9 under the effect of draught fan 8 again, simultaneously motor 10 drives filter screen 7 and rotates and make filter screen 7 filter more effectively, be provided with recess 9 on the filter screen 7, the smoke and dust in the flue gas can filter in recess 9, convenient subsequent processing.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a biomass fuel boiler flue gas processing apparatus, includes treatment box (1), advance cigarette end and install boiler play tobacco pipe (2), its characterized in that of treatment box (1): install heat exchange box (3) that are linked together with boiler play tobacco pipe (2) in processing case (1), inlet tube (4) are installed to the feed liquor end of heat exchange box (3), outlet pipe (5) are installed to the play liquid end of heat exchange box (3), install in processing case (1) with heat exchange box (3) play corresponding shower head (6) of cigarette end, induced draught fan (8) are installed to play cigarette end of processing case (1), recess (9) are installed to the inlet end of induced draught fan (8), waste liquid pipe (12) are installed to the play liquid end of processing case (1).

2. The biomass fuel boiler flue gas treatment device according to claim 1, wherein: a plurality of groups of shunt tubes (11) which are equidistantly arranged are arranged in the heat exchange box (3), and the shunt tubes (11) are communicated with the boiler smoke outlet tube (2).

3. The biomass fuel boiler flue gas treatment device according to claim 1, wherein: the filter screen (7) is rotationally connected with the induced draft fan (8), install motor (10) on handling case (1), the output of motor (10) extends to in handling case (1) and installs the gear, install on filter screen (7) with the ring gear of gear meshing connection.

4. A biomass fuel boiler flue gas treatment device according to claim 3, wherein: the filter screen (7) is provided with a groove (9).

5. The biomass fuel boiler flue gas treatment device according to claim 1, wherein: the inner bottom wall of the treatment tank (1) is provided with an inclined portion (13) corresponding to the waste liquid pipe (12).

6. The biomass fuel boiler flue gas treatment device according to claim 1, wherein: an insulating layer (14) is arranged on the boiler smoke outlet pipe (2).

7. The biomass fuel boiler flue gas treatment device according to claim 1, wherein: an observation window (16) is arranged on the treatment box (1), and a maintenance door (15) is arranged on the observation window (16).

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