CN209744361U

CN209744361U - Large-scale energy-concerving and environment-protective coal fired boiler

Info

Publication number: CN209744361U
Application number: CN201920238794.3U
Authority: CN
Inventors: 胡玉香
Original assignee: Xinyuan Borite Thermal Energy Co Ltd
Current assignee: Xinyuan Borite Thermal Energy Co Ltd
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2019-12-06
Anticipated expiration: 2029-02-26

Abstract

The utility model discloses a large energy-saving environment-friendly coal-fired boiler, which comprises a boiler body, wherein the boiler body is provided with a combustion cavity, the outside of the combustion cavity is connected with a burner, a coal layer is laid in the combustion cavity, the coal layer is laid on a grid, a stirring impeller is arranged above the grid, and the stirring impeller is connected with a motor arranged outside the combustion cavity in a transmission way; the utility model has the advantages that: the energy-saving and environment-friendly heat pump has the advantages of good energy-saving and environment-friendly effects, high heat efficiency, simple structure, convenience in use and cost reduction.

Description

Large-scale energy-concerving and environment-protective coal fired boiler

Technical Field

The utility model relates to a boiler, specifically speaking are large-scale energy-concerving and environment-protective coal fired boiler belongs to the boiler field.

Background

Need use firing equipment in the hydrothermal trade of needs, these firing equipment can carry out the heating of water, can let add more convenience and high efficiency that hot water becomes, can use the boiler when using these firing equipment, the boiler can carry out the heating of short time with water, the time of heating water has been saved, let the efficiency of heating water constantly promote, but a lot of boilers can not burn the heat fully when using, a lot of boilers consume the continuous increase of use amount of natural gas, can not save the use amount of the fuel that the burning boiler need use, a lot of natural gas can form the coking layer on the boiler inner wall after burning, the further use of boiler has been influenced. The utility model discloses a chinese utility model patent that is named as "a large-scale coal fired boiler of coking prevention" application number is "CN 201720398971.5" discloses a large-scale coal fired boiler of coking prevention, is equipped with the burning chamber in the boiler, is equipped with the combustor in the outside of being connected with the burning chamber, the combustor after the start to a large amount of flames of burning chamber release, be equipped with in the burning chamber and lay the coal layer, be equipped with the water pipe on burning chamber side, the water pipe lay on the absorber plate, absorber plate and burning chamber interconnect, the absorber plate absorbs the heat that comes from the burning chamber, gives the water pipe of laying on the absorber plate with the heat transfer by the absorber plate, is equipped with the heat dissipation end at burning chamber upside, is equipped with the cooling tube on the heat dissipation end. However, the product has poor energy-saving and environment-friendly effects and low thermal efficiency, improves the production cost and reduces the economic benefit.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model designs a large-scale energy-concerving and environment-protective coal fired boiler, energy-concerving and environment-protective effectual, the thermal efficiency is high, simple structure, convenient to use, the cost is reduced.

The technical scheme of the utility model is that:

A large-scale energy-saving environment-friendly coal-fired boiler comprises a boiler body, wherein a combustion chamber is arranged on the boiler body, a burner is connected to the outer portion of the combustion chamber, a large amount of flame is released to the combustion chamber after the burner is started, a coal layer is laid in the combustion chamber, the coal layer is laid on a grid, carbon slag can conveniently fall off, a stirring impeller is arranged on the grid, the stirring impeller is in transmission connection with a motor arranged outside the combustion chamber, and through stirring of the stirring impeller, combustion is more sufficient, and the energy-saving effect is improved; and can break the lump coal in the process of stirring, make the gas mixing at the same time, has improved combustion efficiency.

Furthermore, the motor is connected with a speed reducer and is provided with a controller for controlling the stirring speed.

Furthermore, the combustor is a natural gas combustor, the natural gas combustor is externally connected with a natural gas pipe, and a control valve is arranged to control gas flow.

Further, the combustion chamber is equipped with the oxygen filling opening, the oxygen filling opening winds the periphery in combustion chamber is equipped with a plurality ofly, is favorable to gas mixing, has improved combustion efficiency.

Further, the burning chamber periphery is equipped with the water pipe, the water pipe is laid on heat absorption splint, heat absorption splint with the burning chamber is connected, heat absorption splint absorb the heat that comes from the burning chamber, give the water pipe of laying on heat absorption splint with heat transfer by heat absorption splint, burning chamber upside is equipped with the heat dissipation end, the heat dissipation is served and is equipped with the cooling tube, the periphery of cooling tube also is equipped with the water pipe, has improved heat utilization, has effectively utilized the energy.

furthermore, the combustion chamber links to each other with fuel transfer passage, fuel transfer passage is the defeated auger of spiral, and defeated material is even, and degree of automation is high.

Further, the spiral conveying auger is provided with a controller for controlling the conveying speed.

Furthermore, the combustion chamber and the stirring impeller are both provided with high-temperature resistant protective coatings, such as polytetrafluoroethylene layers, so that the anti-coking effect is good.

The utility model has the advantages that: the energy-saving and environment-friendly heat pump has the advantages of good energy-saving and environment-friendly effects, high heat efficiency, simple structure, convenience in use and cost reduction.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is not intended to limit the invention.

Example 1

As shown in fig. 1, the large energy-saving environment-friendly coal-fired boiler comprises a boiler body 1, wherein the boiler body 1 is provided with a combustion chamber 2, a burner 3 is connected to the outside of the combustion chamber 2, a large amount of flame is released to the combustion chamber 2 after the burner 3 is started, a coal layer is laid in the combustion chamber 2 and laid on a grid 4, so that carbon slag can fall conveniently, the grid 4 is provided with a stirring impeller 5, the stirring impeller 5 is in transmission connection with a motor 6 arranged outside the combustion chamber 2, and through stirring of the stirring impeller, combustion is more sufficient, and the energy-saving effect is improved; and can break the lump coal in the process of stirring, make the gas mixing at the same time, has improved combustion efficiency.

The motor is connected with a speed reducer and is provided with a controller for controlling the stirring speed.

The combustor 3 is a natural gas combustor which is externally connected with a natural gas pipe and is provided with a control valve for controlling gas flow.

The combustion chamber 2 is equipped with oxygen filling opening 7, oxygen filling opening 7 winds the periphery of combustion chamber 2 is equipped with a plurality ofly, has improved combustion efficiency.

2 peripheries in burning chamber are equipped with water pipe 8, water pipe 8 is laid on heat absorption splint 9, heat absorption splint 9 with burning chamber 2 is connected, heat absorption splint 9 absorbs the heat that comes from burning chamber 2, lays the water pipe 8 on heat absorption splint 9 with heat transfer by heat absorption splint 9, 2 upsides in burning chamber are equipped with the heat dissipation end, the heat dissipation is served and is equipped with cooling tube 10, the periphery of cooling tube 10 also is equipped with water pipe 8, has improved heat utilization rate, has effectively utilized the energy.

The combustion chamber 2 is connected with a fuel conveying channel, the fuel conveying channel is a spiral conveying auger, the conveying is uniform, and the automation degree is high.

The spiral conveying auger is provided with a controller for controlling the conveying speed.

The combustion chamber 2 and the stirring impeller are both provided with high-temperature resistant protective coatings, such as polytetrafluoroethylene layers, and the anti-coking effect is good.

The boiler body is a fully-closed membrane type water-cooled wall structure, smoke is completely isolated from the outside, and light heat-insulating materials with the thickness of 160mm are laid outside the membrane type water-cooled wall structure, so that the design heat-insulating requirement can be met. The light heat-insulating material is fixed on the outer side of the membrane wall through round steel fins welded on the membrane wall and a steel wire mesh, and the corrugated furnace clothing is coated outside the heat-insulating material.

Claims

1. A large-scale energy-concerving and environment-protective coal fired boiler which characterized in that: the boiler comprises a boiler body, the boiler body is equipped with the combustion chamber, combustion chamber external connection has the combustor, the coal layer has been laid to the combustion chamber intracavity, the coal layer is laid on the grid, the grid top is equipped with stirring impeller, stirring impeller is in with the setting motor drive outside the combustion chamber links to each other.

2. A large energy-saving environment-friendly coal-fired boiler according to claim 1, characterized in that: the motor is connected with a speed reducer and is provided with a controller.

3. A large energy-saving environment-friendly coal-fired boiler according to claim 2, characterized in that: the combustor is a natural gas combustor, the natural gas combustor is externally connected with a natural gas pipe, and a control valve is arranged to control gas flow.

4. A large energy-saving environment-friendly coal-fired boiler according to claim 3, characterized in that: the combustion chamber is equipped with the oxygen filling opening, the oxygen filling opening is equipped with a plurality ofly around the periphery in combustion chamber.

5. A large energy-saving environment-friendly coal-fired boiler according to claim 4, characterized in that: the periphery of the combustion cavity is provided with a water pipe, the water pipe is laid on a heat absorption clamping plate, and the heat absorption clamping plate is connected with the combustion cavity; the combustion chamber upside is equipped with the heat dissipation end, the heat dissipation is served and is equipped with the cooling tube, the periphery of cooling tube also is equipped with the water pipe.

6. A large energy-saving environment-friendly coal-fired boiler according to claim 1, characterized in that: the combustion chamber is connected with a fuel conveying channel, and the fuel conveying channel is a spiral conveying auger.

7. A large energy-saving environment-friendly coal-fired boiler according to claim 6, characterized in that: the spiral conveying auger is provided with a controller.