CN208475362U - Biomass powder heat exchanger - Google Patents

Abstract

In particular to a kind of biomass powder heat exchanger of the utility model.In the heat exchanger, burner hearth is vertically provided with combustion chamber, and the bottom of combustion chamber is open, is provided with outlet flue at the top of combustion chamber side wall, the bottom of combustion chamber is arranged in burner；Feed device is mounted on the outside of burner hearth, and the delivery outlet of feed device is connected with the bottom of combustion chamber side wall；The outside of burner hearth is arranged in first blower device, and the delivery outlet of the first blower device is connected in the bottom of combustion chamber；The input port of deslagging device is located at the bottom of burner, and the outside of burner hearth is arranged in delivery outlet；The the first wind chamber and the second wind chamber that the side wall of burner hearth sets gradually and communicates from outside to inside, the lateral wall of the first wind chamber are provided with blast orifice, and the lateral wall of the second wind chamber is provided with air outlet；The top of combustion chamber is arranged in water tank.The utility model can recycle the energy lost by flue gas cool-down, while flue gas cool-down to achieve energy-saving and emission reduction purposes.

Description

Biomass powder heat exchanger

Technical field

The utility model belongs to material field of combustion technology, in particular to a kind of biomass powder heat exchanger.

Background technique

Biomass energy accounts for 12% or so of global energy total flow as the fourth largest source in the world.Biomass energy Source is from a wealth of sources, and volatile matter content is high, and content of ashes is low, and sulfur content is low, since growing environment absorbs CO2 amount, is equivalent to burning The CO2 amount discharged in atmosphere, therefore realize that the net discharge amount of CO2 is similar to zero during energy conversion, be conducive to improve greenhouse effect It answers.

In the prior art, biomass powder burner passes through air and fuel by proper proportion mix and convert so that it is abundant Burning forms the flue gas for being able to utilize.But temperature when biomass powder initial combustion is higher, and the temperature for the flue gas being utilized When lower than biomass powder initial combustion when temperature, to solve the above-mentioned problems, the prior art would generally be to biomass powder The flue gas cool-down that initial combustion generates is expected, to obtain the flue gas for meeting temperature.

In the process of implementing the utility model, it is found by the applicant that at least following problems in the prior art:

Since in the prior art, due to the flue gas cool-down for needing to generate biomass powder initial combustion, this is resulted in The loss of gas energy, is unfavorable for energy-saving and emission-reduction.

Utility model content

Aiming at the problems existing in the prior art, the utility model provides a kind of biology for enabling high-temperature flue gas to utilize Matter powder heat exchanger.

The technical solution of the utility model are as follows:

A kind of biomass powder heat exchanger, the heat exchanger include burner hearth, burner, feed device, the first air blast Device, deslagging device and water tank, in which:

The burner hearth is vertically provided with combustion chamber, and the bottom of the combustion chamber is open, the combustion chamber side wall Top is provided with outlet flue；

The bottom of the combustion chamber is arranged in the burner；

The feed device is mounted on the outside of the burner hearth, the delivery outlet of the feed device and the combustion chamber The bottom of side wall is connected；

The outside of the burner hearth, the delivery outlet connection of first blower device is arranged in first blower device In the bottom side of the combustion chamber；

The input port of the deslagging device is located at the bottom side of the burner, and the delivery outlet setting of the deslagging device exists The outside of the burner hearth；

The side wall of the burner hearth is disposed with the first wind chamber and the second wind chamber, first wind from outside to inside Chamber, the second wind chamber are co-axially located at the outside of the combustion chamber, and the lateral wall of the first wind chamber is provided with blast orifice, institute It states the first wind chamber and the second wind chamber communicates setting, the lateral wall of the second wind chamber is provided with air outlet；

The top of the combustion chamber is arranged in the water tank.

Further, the feed device includes feeding funnel, the first spiral conveying tube and the first driving motor, and described One driving motor is fixed at the outside of the burner hearth, and one end of first spiral conveying tube is arranged described first On the output shaft of driving motor, the feeding funnel connection is arranged on first spiral conveying tube.

Further, first blower device includes the first air blower and the first blast pipe, and first air blower is solid The outside of the burner hearth is set calmly, and the delivery outlet of first air blower is arranged in one end of first blast pipe On, the other end of first blast pipe is the delivery outlet of first blower device, and the other end of first blast pipe connects Lead to the bottom side in the combustion chamber, and tangentially enter the combustion chamber, and the first helical feed bottom of the tube and described the One blast pipe is connected.

Further, the deslagging device includes dirt-excluding bucket, the second spiral conveying tube and the second driving motor, and described Two driving motors are fixed at the outside of the burner hearth, and one end of second spiral conveying tube is arranged described second On the output shaft of driving motor, the dirt-excluding bucket connection is arranged on second spiral conveying tube, and the dirt-excluding bucket is located at institute State the underface of burner.

Further, it is provided with partition walls between the first wind chamber and the second wind chamber, is arranged in the partition walls There are multiple spray-holes.

Preferably, the heat exchanger further includes blast pipe and discharge pipe, and the blast pipe turns on the blast orifice, One end of the discharge pipe is connected on the air outlet, and the other end of the discharge pipe passes through the first wind chamber.

Further, the side of the water tank is provided with water inlet, is provided with water outlet at the top of the water tank.

Further, the heat exchanger further includes the second blower device, and second blower device includes the second air blower With the second blast pipe, second air blower is fixed at the outside of the burner hearth, one end of second blast pipe It is arranged on the delivery outlet of second air blower, the other end tangentially the entering along the combustion chamber of second blast pipe The middle part of the combustion chamber.

Further, the heat exchanger further includes pipe and deduster, one end of the pipe be connected to it is described go out On mouth, the other end of the pipe is connected on the input port of the deduster.

Further, the heat exchanger further includes circulation air hose, and one end of the circulation air hose is for sucking low temperature cigarette The other end of gas, the circulation air hose is connected with the delivery outlet of the deduster

The beneficial effects of the utility model include at least:

A kind of biomass powder heat exchanger of the utility model, since burner hearth is vertically provided with combustion chamber, burning The bottom of chamber is open, and the bottom of combustion chamber is arranged in burner, and feed device is mounted on the outside of burner hearth, feed device Delivery outlet is connected with the bottom of combustion chamber side wall, thus biomass powder can be delivered to combustion chamber by feed device Bottom, and by burning light, generate high-temperature flue gas.

Since the outside of burner hearth is arranged in the first blower device, the delivery outlet of the first blower device is connected in combustion chamber Bottom, be provided with outlet flue at the top of combustion chamber side wall, the high-temperature flue gas of generation can be delivered to combustion by the first blower device The top of chamber is burnt, and is discharged by outlet flue.

Since the input port of deslagging device is located at the bottom of burner, burner hearth is arranged in the delivery outlet of deslagging device Burner hearth is discharged, to avoid the burning for influencing biomass powder in the lime-ash that biomass powder is generated in burning by outside.

Since the side wall of burner hearth is disposed with the first wind chamber, the second wind chamber, the first wind chamber, the second wind from outside to inside Chamber is co-axially located at the outside of combustion chamber, and the lateral wall of the first wind chamber is provided with blast orifice, and the first wind chamber and the second wind chamber communicate Setting, the lateral wall of the second wind chamber are provided with air outlet, cold wind can be introduced the first wind by the blowing holes of the first wind chamber It is intracavitary, and enter that the second wind is intracavitary, be discharged from the air outlet of the second wind chamber, cold wind during flowing, can and burning The high-temperature wall surface of chamber exchanges heat, and can not only reduce the temperature of the flue gas through outlet flue discharge, cold air heating can also be formed heat Wind, hot wind can be guided and be recycled elsewhere.

Since the top of combustion chamber is arranged in water tank, high-temperature flue gas can not only be reduced heating water tanks through smoke The temperature of the flue gas of mouth discharge, can also heat the water in water tank, form hot water, hot water can guide to carry out again elsewhere It utilizes.

Therefore, the utility model can recycle the energy lost by flue gas cool-down, while flue gas cool-down to reach The purpose of energy-saving and emission-reduction.

Detailed description of the invention

It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is a kind of structural schematic diagram of biomass powder heat exchanger of the utility model embodiment；

Fig. 2 is the overlooking structure diagram of Fig. 1；

Fig. 3 is the side structure schematic view of Fig. 1.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 is a kind of structural schematic diagram of biomass powder heat exchanger of the utility model embodiment, and Fig. 2 is bowing for Fig. 1 Depending on structural schematic diagram, Fig. 3 is the side structure schematic view of Fig. 1.In conjunction with Fig. 1-Fig. 3, the heat exchanger packet of the utility model embodiment Include burner hearth 1, burner 2, feed device 3, the first blower device 4, deslagging device 5 and water tank 6.

In conjunction with Fig. 1, the burner hearth 1 of the utility model embodiment is vertically provided with combustion chamber 7, the bottom of combustion chamber 7 Opening is provided with outlet flue at the top of 7 side wall of combustion chamber, and the bottom of combustion chamber 7 is arranged in burner 2, and feed device 3 is installed In the outside of burner hearth 1, the delivery outlet of feed device 3 is connected with the bottom of 7 side wall of combustion chamber.It thus can be by sending Biomass powder is delivered to the bottom of combustion chamber by material device, and is lighted by burning, and high-temperature flue gas is generated.

Specifically, in conjunction with Fig. 3, the feed device 3 of the utility model embodiment may include feeding funnel 3.1, the first spiral Delivery pipe 3.2 and the first driving motor 3.3, the first driving motor 3.3 are fixed at the outside of burner hearth 1, the first spiral shell One end of rotation delivery pipe 3.2 is arranged on the output shaft of the first driving motor 3.3, and the connection of feeding funnel 3.1 is arranged in the first spiral In delivery pipe 3.2

.In use, biomass powder is placed in feeding funnel, the first driving motor drives the first spiral conveying tube to turn It is dynamic, biomass powder can be conveyed by the first spiral conveying tube.

In conjunction with Fig. 1 and Fig. 2, in the utility model embodiment, the outside of burner hearth 1 is arranged in the first blower device 4, and The delivery outlet of one blower device 4 is connected in the bottom of combustion chamber, and such first blower device can be defeated by the high-temperature flue gas of generation It send to the top of combustion chamber, and is discharged by outlet flue.

Specifically, in conjunction with Fig. 1 and Fig. 2, in the utility model embodiment, the first blower device 4 may include the first air blast Machine 4.1 and the first blast pipe 4.2, the first air blower 4.1 are fixed at the outside of burner hearth 1, and the one of the first blast pipe 4.2 End is arranged on the delivery outlet of the first air blower 4.1, and the other end of the first blast pipe 4.2 is the delivery outlet of the first blower device 4, The other end of first blast pipe 4.2 is connected to the bottom side in combustion chamber 7, and tangentially enters combustion chamber 7.First air blower passes through the The high-temperature flue gas of generation can be delivered to the top of combustion chamber, and is discharged by outlet flue by one blast pipe.

Further, in conjunction with Fig. 2, in the utility model embodiment, 3.2 bottom of the first spiral conveying tube can be with the first drum Air hose 4.2 is connected, and biomass powder can be delivered in the first blast pipe 4.2 by the first spiral conveying tube, then by first Air blower is blown into burner.

The utility model embodiment is due to combining feed device and the first blower device, to keep structure more compact Rationally.

In conjunction with Fig. 1, in the utility model embodiment, the input port of deslagging device 5 is located at the bottom of burner 2, dress of slagging tap The outside of burner hearth 1 is arranged in the delivery outlet for setting 2, since biomass powder is in burning, slag can be generated, in order to avoid shadow The burning for ringing biomass powder, needs for lime-ash to be discharged, and deslagging device 5 is a kind of device that lime-ash is discharged.

Specifically, in conjunction with Fig. 1, in the utility model embodiment, which includes dirt-excluding bucket 5.1, the second spiral transferring Pipe 5.2 and the second driving motor 5.3 are sent, the second driving motor 5.3 is fixed at the outside of burner hearth 1, the second spiral One end of delivery pipe 5.2 is arranged on the output shaft of the second driving motor 5.3, and the connection of dirt-excluding bucket 5.1 is arranged in the second spiral transferring It send on pipe 5.2, dirt-excluding bucket 5.3 is located at the underface of burner 2, and the lime-ash that biomass powder is generated in burning enters out In slag bucket 5.1, and 1 outside of burner hearth is delivered to by the second spiral conveying tube 5.2.

In conjunction with Fig. 1 and Fig. 2, in the utility model embodiment, the side wall of burner hearth 1 is disposed with first from outside to inside Wind chamber 8 and the second wind chamber 9, the first wind chamber 8, the second wind chamber 9 are co-axially located at the outside of combustion chamber 7, the outside of the first wind chamber 8 Wall is provided with blast orifice 10, and the first wind chamber 8 and the second wind chamber 9 communicate setting, and the lateral wall of the second wind chamber 9 is provided with air outlet, It is intracavitary cold wind can be introduced the first wind by the blowing holes of the first wind chamber in this way, and it is intracavitary to enter the second wind, from second The air outlet of wind chamber is discharged, and cold wind can exchange heat with the high-temperature wall surface of combustion chamber during flowing, can not only reduce warp Cold air heating can also be formed hot wind by the temperature of the flue gas of outlet flue discharge, and hot wind can guide carries out benefit again elsewhere With.

Partition walls are provided between the first wind chamber and the second wind chamber of the utility model embodiment, are provided in partition walls more A spray-hole not only may be implemented being connected to for the first wind chamber 8 and the second wind chamber 9, extraneous cold wind can also be made to spray to combustion chamber 7 Lateral wall on, improve heat exchanger effectiveness.

In conjunction with Fig. 1 and Fig. 2, in the utility model embodiment, heat exchanger further includes blast pipe 11, and blast pipe 11 turns on drum On air port, cold wind can be introduced into the first wind chamber 8 by blast pipe 11 by blower.

In the utility model embodiment, heat exchanger further includes discharge pipe, and one end of discharge pipe is connected on air outlet, outlet air The other end of pipe passes through the first wind chamber 8, can be bloated hot wind by another air blower.

In the utility model embodiment, the hot wind of extraction be can use in the raw material stoving of biomass powder, save energy Source.

In conjunction with Fig. 1 and Fig. 2, in the utility model embodiment, the top of 7 chambers of burning is arranged in water tank 6, and high-temperature flue gas can By heating water tanks, can not only reduce the temperature of the flue gas through outlet flue discharge, the water in water tank can also be heated, be formed Hot water, hot water can be guided and be recycled elsewhere.

Specifically, in the utility model embodiment, the side of water tank 6 is provided with water inlet, and the top of water tank 6 is provided with out The mouth of a river after being flowed into hot water tank, is fed in washing and dehydrating integrated machine after the water in water tank is heated, carries out washing for clothing The work washed.

In conjunction with Fig. 1 and Fig. 2, the heat exchanger of the utility model embodiment can also include the second blower device 12, the second drum Wind apparatus 12 includes the second air blower 12.1 and the second blast pipe 12.2, and the second air blower 12.1 is fixed at burner hearth 1 Outside, one end of the second blast pipe 12.2 is arranged on the delivery outlet of the second air blower 12.1, the second blast pipe 12.1 it is another It is connected in the middle part of one end and combustion chamber.In actual use, the wind energy that the second blast pipe introduces is to the powder on burning cavity wall Material is brushed, and prevents its coking when burning on fire grate, simultaneously, moreover it is possible to a large amount of unreacted fuel gas and unburned particulate matter in flue gas be made to exist It is fully burned under the perturbing for the wind that second air hose introduces, burning time obtains extending into one, and the burning of powder is more abundant.

Preferably, in the utility model embodiment, the other end of the second blast pipe 12.1 can along combustion chamber 7 it is tangential into Enter to combustion chamber, more can guarantee in this way and the powder on burning cavity wall is carried out brushing effect, improve the combustion efficiency of fuel.

Further, in conjunction with Fig. 1, the heat exchanger of the utility model embodiment further includes pipe 13 and deduster 14, out One end of smoke pipe 13 is connected on outlet flue, and the other end of pipe 13 is connected on the input port of deduster 14, from outlet flue The flue gas of discharge can enter in deduster, remove the dust in flue gas, improve the clarity of flue gas.

The deduster 14 of the utility model embodiment can select water cooling cyclone dust collectors.

Further, in conjunction with Fig. 1, the heat exchanger of the utility model embodiment further includes circulation air hose 15, recycles air hose 15 One end for sucking low-temperature flue gas, the other end of circulation air hose 15 is connected with the delivery outlet of deduster 14.In this way, circulation air hose 15 high-temperature flue gas that the low-temperature flue gas of sucking and deduster 14 are discharged mix, to further decrease the high temperature of the discharge of deduster 14 The temperature of flue gas, to meet requirement.

It is directed into press through circulation air hose 15 and the mixed high-temperature flue gas of deduster 14, to be used for clothing Pressing work, and recycle the low-temperature flue gas that press is discharged for one end of air hose 15 and introduce, circulation is formed, with further energy conservation Emission reduction.

In conclusion the heat exchanger of the utility model embodiment, can will lose while flue gas cool-down because of flue gas cool-down Energy recycle, to achieve energy-saving and emission reduction purposes.

Embodiment provided above is the better embodiment of the utility model, only is used to facilitate to illustrate the utility model, and It is non-to impose any limitation on the present invention, have usually intellectual in any technical field, if not departing from In the range of the mentioned technical characteristic of the utility model, locally changes or repair using made by the utility model disclosed technology content The equivalent embodiment of decorations, and without departing from the technical characteristics of the utility model content, still fall within the utility model technical characteristic In the range of.

Claims (10)

1. a kind of biomass powder heat exchanger, which is characterized in that the heat exchanger include burner hearth, burner, feed device, First blower device, deslagging device and water tank, in which:

The burner hearth is vertically provided with combustion chamber, and the bottom of the combustion chamber is open, the top of the combustion chamber side wall It is provided with outlet flue；

The bottom of the combustion chamber is arranged in the burner；

The feed device is mounted on the outside of the burner hearth, the delivery outlet of the feed device and the combustion chamber side wall Bottom be connected；

The outside of the burner hearth is arranged in first blower device, and the delivery outlet of first blower device is connected in institute State the bottom side of combustion chamber；

The input port of the deslagging device is located at the bottom side of the burner, and the delivery outlet of the deslagging device is arranged described The outside of burner hearth；

The side wall of the burner hearth is disposed with the first wind chamber and the second wind chamber, the first wind chamber, institute from outside to inside State the outside that the second wind chamber is co-axially located at the combustion chamber, the lateral wall of the first wind chamber is provided with blast orifice, and described One wind chamber and the second wind chamber communicate setting, and the lateral wall of the second wind chamber is provided with air outlet；

The top of the combustion chamber is arranged in the water tank.

2. biomass powder heat exchanger according to claim 1, which is characterized in that the feed device include feeding funnel, First spiral conveying tube and the first driving motor, first driving motor are fixed at the outside of the burner hearth, One end of first spiral conveying tube is arranged on the output shaft of first driving motor, and the feeding funnel connection setting exists On first spiral conveying tube.

3. biomass powder heat exchanger according to claim 2, which is characterized in that first blower device includes first Air blower and the first blast pipe, first air blower are fixed at the outside of the burner hearth, first blast pipe One end be arranged on the delivery outlet of first air blower, the other end of first blast pipe is first blower device Delivery outlet, the other end connection of first blast pipe and tangentially enters combustion chamber, and institute in the bottom side of the combustion chamber The first helical feed bottom of the tube is stated to be connected with first blast pipe.

4. biomass powder heat exchanger according to claim 1, which is characterized in that the deslagging device include dirt-excluding bucket, Second spiral conveying tube and the second driving motor, second driving motor are fixed at the outside of the burner hearth, One end of second spiral conveying tube is arranged on the output shaft of second driving motor, and the dirt-excluding bucket connection setting exists On second spiral conveying tube, the dirt-excluding bucket is located at the underface of the burner.

5. biomass powder heat exchanger according to claim 1, which is characterized in that the first wind chamber and second wind It is provided with partition walls between chamber, multiple spray-holes are provided in the partition walls.

6. biomass powder heat exchanger according to claim 4, which is characterized in that the heat exchanger further include blast pipe with And discharge pipe, the blast pipe turn on the blast orifice, one end of the discharge pipe is connected on the air outlet, described The other end of discharge pipe passes through the first wind chamber.

7. biomass powder heat exchanger according to claim 1, which is characterized in that the side of the water tank is provided with into water Mouthful, water outlet is provided at the top of the water tank.

8. biomass powder heat exchanger according to claim 1-7, which is characterized in that the heat exchanger further includes Second blower device, second blower device include the second air blower and the second blast pipe, and the second air blower fixation is set It sets in the outside of the burner hearth, one end of second blast pipe is arranged on the delivery outlet of second air blower, institute State the middle part that tangentially enters the combustion chamber of the other end along the combustion chamber of the second blast pipe.

9. biomass powder heat exchanger according to claim 1-7, which is characterized in that the heat exchanger further includes Pipe and deduster, one end of the pipe are connected on the outlet flue, and the other end of the pipe is connected to institute It states on the input port of deduster.

10. biomass powder heat exchanger according to claim 9, which is characterized in that the heat exchanger further includes circulated air Pipe, one end of the circulation air hose is for sucking low-temperature flue gas, the output of the other end and the deduster of the circulation air hose Mouth connection.