CN218209527U

CN218209527U - Multistage coal-saving structure of biomass boiler

Info

Publication number: CN218209527U
Application number: CN202222142233.8U
Authority: CN
Inventors: 张恩臣
Original assignee: Yangxin County Kaidi Green Energy Development Co Ltd
Current assignee: Yangxin County Kaidi Green Energy Development Co Ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-01-03
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a multistage economize coal structure of biomass boiler, including the box, the heat insulating layer is installed in the outside of box. The utility model discloses, the intake pipe that the high temperature flue gas passes through first box gets into when heat exchange tube is inside, the temperature sensor that first box corresponds detects the high temperature flue gas, the automatically controlled valve that corresponds is opened through controller control, make the hot water that trades flow in first box, retrieve the high temperature waste heat, the flue gas flows into in the intake pipe of second box through the outlet duct of first box, along with temperature rise in the first box, flue gas temperature rises gradually in the outlet duct of first box, when the temperature value that reaches the temperature sensor setting of second box, the automatically controlled valve that control second box corresponds is opened, retrieve waste heat secondary, be provided with a plurality of boxes, through monitoring flue gas temperature in the intake pipe, control opening and shutting of automatically controlled valve, can carry out multistage heat transfer to the high temperature flue gas, can effectual improvement to the recovery efficiency of waste heat.

Description

Multistage coal-saving structure of biomass boiler

Technical Field

The utility model relates to a biomass boiler waste heat recovery technical field specifically is a biomass boiler multistage economize coal structure.

Background

The biomass boiler is a kind of boiler, namely a boiler using biomass energy as fuel is called as a biomass boiler, when the biomass boiler works, a large amount of high-temperature flue gas can be generated, and a coal economizer is required to recycle the waste heat of the high-temperature flue gas.

The existing boiler economizer comprises a water tank, a heat exchange pipe, a water inlet pipe and a water outlet pipe, wherein high-temperature flue gas flows in the heat exchange pipe, the heat exchange pipe is positioned on the inner side of the water tank, the heat exchange water flows through the water inlet pipe and the water outlet pipe, heat exchange water and the high-temperature flue gas exchange heat through the heat exchange pipe, and the high-temperature flue gas waste heat is recycled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biomass boiler multistage economizes coal structure, it is lower to flue gas waste heat recovery's current utilization ratio, the problem of inconvenient use to have solved.

In order to achieve the above object, the utility model provides a following technical scheme: a biomass boiler multi-stage coal-saving structure comprises a box body, a heat insulation layer is arranged on the outer side of the box body, a heat exchange pipe is arranged in the box body, wherein,

one end of the heat exchange tube is communicated with an air inlet tube, one end of the air inlet tube, far away from the heat exchange tube, penetrates through the interior of the box body and extends to the outside, the other end of the heat exchange tube is communicated with an air outlet tube, one end of the air outlet tube, far away from the heat exchange tube, penetrates through the interior of the box body and extends to the outside, one side of the air inlet tube, close to the box body, is provided with a temperature sensor, and the top of the box body is provided with a water distribution tube;

the bottom of the water distribution pipe corresponding to the box body is communicated with an electric control valve, one end of the electric control valve, far away from the box body, is communicated with a water inlet pipe, one end of the water inlet pipe, far away from the electric control valve, is communicated with the bottom of the box body, one side of the water inlet pipe, close to the electric control valve, is provided with a flow sensor, one side of the top of the box body is communicated with a water outlet pipe, and the water distribution pipe is provided with a controller;

the box is provided with more than two, and the outlet duct between the box is adjacent is connected with the intake pipe.

Preferably, the heat insulating layer is made of aerogel felt material, and the heat insulating layer is fixedly connected with the outer side of the box body through gluing.

Preferably, the number of the temperature sensors, the electric control valves and the flow sensors is the same as that of the box body, and the temperature sensors, the electric control valves and the flow sensors are in one-to-one correspondence with the box body.

Preferably, the temperature sensor, the electric control valve and the flow sensor are electrically connected with the controller.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses, the box sets up a plurality ofly, high temperature flue gas is discharged from the boiler, when the intake pipe through first box gets into inside the heat exchange tube, the temperature sensor that first box corresponds detects the high temperature flue gas, the automatically controlled valve that corresponds through the first box of controller control is opened, make the heat transfer water flow in first box, retrieve the high temperature waste heat, the flue gas is in the inlet duct of outlet duct inflow second box through first box, along with the temperature rises in the first box, flue gas temperature rises gradually in the outlet duct of first box, when the temperature value that reaches the temperature sensor of second box settlement, the automatically controlled valve that control second box corresponds is opened, retrieve waste heat secondary, and in the same way, be provided with a plurality of boxes, through monitoring flue gas temperature in the inlet duct, control opening and shutting of automatically controlled valve, can carry out multistage heat transfer to the high temperature flue gas, can effectual improvement to the recovery efficiency of waste heat.

2. The utility model discloses, through the fixed one deck heat preservation of veneer in the box outside, after the temperature rose in the box, through heat preservation to box inboard with the external heat preservation, reduce the internal heat loss of box, avoid the extravagant energy.

3. The utility model discloses, detect flue gas temperature through the temperature sensor who corresponds to open and shut through the controller to the automatically controlled valve and control, monitor the flow in the intake pipe through flow sensor simultaneously, so that through the flow of the interior heat exchange water of controller control automatically controlled valve, make heat exchange water distribute more evenly in each intake pipe.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is the structural schematic diagram of the working principle of the control system of the multistage coal-saving structure of the utility model.

In the figure: 1. a box body; 2. a thermal insulation layer; 3. a heat exchange tube; 4. an air inlet pipe; 5. an air outlet pipe; 6. a temperature sensor; 7. a water distribution pipe; 8. an electrically controlled valve; 9. a water inlet pipe; 10. a flow sensor; 11. a water outlet pipe; 12. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1 to 3, the present invention provides a technical solution: a biomass boiler multi-stage coal-saving structure comprises a box body 1, a heat insulation layer 2 is arranged on the outer side of the box body 1, a heat exchange pipe 3 is arranged in the box body 1, wherein,

one end of the heat exchange tube 3 is communicated with an air inlet tube 4, one end, far away from the heat exchange tube 3, of the air inlet tube 4 penetrates through the inside of the box body 1 and extends to the outside, the other end of the heat exchange tube 3 is communicated with an air outlet tube 5, one end, far away from the heat exchange tube 3, of the air outlet tube 5 penetrates through the inside of the box body 1 and extends to the outside, one side, close to the box body 1, of the air inlet tube 4 is provided with a temperature sensor 6, and the top of the box body 1 is provided with a water distribution tube 7;

the bottom of the water distribution pipe 7 corresponding to the box body 1 is communicated with an electric control valve 8, one end of the electric control valve 8, which is far away from the box body 1, is communicated with a water inlet pipe 9, one end of the water inlet pipe 9, which is far away from the electric control valve 8, is communicated with the bottom of the box body 1, one side, which is close to the electric control valve 8, of the water inlet pipe 9 is provided with a flow sensor 10, one side of the top of the box body 1 is communicated with a water outlet pipe 11, and the water distribution pipe 7 is provided with a controller 12;

the box 1 sets up a plurality ofly, the high temperature flue gas is discharged from the boiler, when getting into heat exchange tube 3 inside through intake pipe 4 of first box 1, the temperature sensor 6 that first box 1 corresponds detects the high temperature flue gas, electric control valve 8 that corresponds through controller 12 control first box 1 is opened, make the heat transfer water flow in first box 1, retrieve the high temperature waste heat, the flue gas flows into in the intake pipe 4 of second box 1 through outlet duct 5 of first box 1, along with the water temperature rise in the first box 1, the flue gas temperature rises gradually in the outlet duct 5 of first box 1, when reaching the temperature value that temperature sensor 6 of second box 1 set for (for example 50 ℃), the electric control valve 8 that control second box 1 corresponds is opened, retrieve the waste heat for the secondary, be provided with a plurality of boxes 1, through monitoring the flue gas temperature in the 4, open and shut of electric control intake pipe 8 is controlled, can carry out multistage heat transfer to the high temperature flue gas, can effectual improvement to the recovery efficiency of waste heat.

Referring to fig. 1 and 2, more than two box bodies 1 are arranged, an air outlet pipe 5 between adjacent box bodies 1 is connected with an air inlet pipe 4, a heat insulation layer 2 is made of aerogel felt material, the heat insulation layer 2 is fixedly connected with the outer side of the box body 1 through gluing, a layer of heat insulation layer 2 is fixed on the outer side of the box body 1 through gluing, after the temperature of water in the box body 1 rises, the inner side of the box body 1 is insulated from the outside through the heat insulation layer 2, heat loss in the box body 1 is reduced, and energy waste is avoided.

Referring to fig. 1 to 3, the number of the temperature sensors 6, the electric control valves 8 and the flow sensors 10 is the same as that of the box body 1, the temperature sensors 6, the electric control valves 8 and the flow sensors 10 are in one-to-one correspondence with the box body 1, the temperature sensors 6, the electric control valves 8 and the flow sensors 10 are electrically connected with the controller 12, the smoke temperature is detected through the corresponding temperature sensors 6, the opening and closing of the electric control valves 8 are controlled through the controller 12, the flow in the water inlet pipe 9 is monitored through the flow sensors 10, the flow of the heat exchange water in the electric control valves 8 is controlled through the controller 12, and the distribution of the heat exchange water in each water inlet pipe 9 is more uniform.

The working principle is as follows: this multistage economize coal structure of biomass boiler, box 1 sets up a plurality ofly, high temperature flue gas is discharged from the boiler, when getting into inside heat exchange tube 3 through intake pipe 4 of first box 1, the temperature sensor 6 that first box 1 corresponds detects high temperature flue gas, control the automatically controlled valve 8 that first box 1 corresponds through controller 12 and open, make the heat transfer water flow in first box 1, retrieve the high temperature waste heat, the flue gas flows into in the intake pipe 4 of second box 1 through the outlet duct 5 of first box 1, along with the rising of the interior water temperature of first box 1, the flue gas temperature rises gradually in the outlet duct 5 of first box 1, when reaching the temperature value that temperature sensor 6 of second box 1 set for (for example 50 control the automatically controlled valve 8 that second box 1 corresponds and open, to waste heat secondary recovery, be provided with a plurality of boxes 1, through monitoring the flue gas temperature in the intake pipe 4, control the opening and shutting of automatically controlled valve 8, can carry out multistage heat transfer to high temperature flue gas, can effectually improve the waste heat recovery efficiency to box, and pass through fixed one deck 2 outside heat insulation layer 2 outside, waste of box is avoided, the internal heat loss after gluing 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multistage economize coal structure of biomass boiler, includes box (1), its characterized in that: the outer side of the box body (1) is provided with a heat insulation layer (2), the interior of the box body (1) is provided with a heat exchange tube (3), wherein,

one end of the heat exchange tube (3) is communicated with an air inlet tube (4), one end, far away from the heat exchange tube (3), of the air inlet tube (4) penetrates through the inside of the box body (1) and extends to the outside, the other end of the heat exchange tube (3) is communicated with an air outlet tube (5), one end, far away from the heat exchange tube (3), of the air outlet tube (5) penetrates through the inside of the box body (1) and extends to the outside, one side, close to the box body (1), of the air inlet tube (4) is provided with a temperature sensor (6), and the top of the box body (1) is provided with a water distribution tube (7);

the bottom of the water distribution pipe (7) corresponding to the box body (1) is communicated with an electric control valve (8), one end, far away from the box body (1), of the electric control valve (8) is communicated with a water inlet pipe (9), one end, far away from the electric control valve (8), of the water inlet pipe (9) is communicated with the bottom of the box body (1), one side, close to the electric control valve (8), of the water inlet pipe (9) is provided with a flow sensor (10), one side, at the top of the box body (1) is communicated with a water outlet pipe (11), and a controller (12) is installed on the water distribution pipe (7);

the box body (1) is provided with more than two, and the air outlet pipe (5) between the adjacent box bodies (1) is connected with the air inlet pipe (4).

2. The multi-stage coal saving structure of the biomass boiler according to claim 1, characterized in that: the heat insulation layer (2) is made of aerogel felt materials, and the heat insulation layer (2) is fixedly connected with the outer side of the box body (1) through gluing.

3. The multi-stage coal saving structure of the biomass boiler according to claim 1, characterized in that: the number of the temperature sensors (6), the number of the electric control valves (8) and the number of the flow sensors (10) are the same as that of the box body (1), and the temperature sensors (6), the electric control valves (8) and the number of the flow sensors (10) are in one-to-one correspondence with the box body (1).

4. The multi-stage coal saving structure of the biomass boiler according to claim 1, characterized in that: the temperature sensor (6), the electric control valve (8) and the flow sensor (10) are electrically connected with the controller (12).