CN212457979U

CN212457979U - Furnace waste gas waste heat recovery utilizes device

Info

Publication number: CN212457979U
Application number: CN202021201492.8U
Authority: CN
Inventors: 王辉; 徐良; 田小庆; 刘兴宝
Original assignee: Jiangsu Gangda Environmental Protection Co ltd
Current assignee: Jiangsu Gangda Environmental Protection Co ltd
Priority date: 2020-06-27
Filing date: 2020-06-27
Publication date: 2021-02-02
Anticipated expiration: 2030-06-27

Abstract

The utility model provides a furnace waste gas waste heat recovery and utilization device, which comprises an air blower, a boiler, a first transmission pipe, a spray cylinder, a second transmission pipe, a turbo generator, a third transmission pipe, a heat exchanger, an air injection plate, a water injection plate, a drain valve and a water inlet valve, wherein the air blower is arranged at the air inlet end of the boiler, the first transmission pipe is connected with the exhaust end of the boiler, the spray cylinder is arranged at the right side of the first transmission pipe, the upper side of the spray cylinder is provided with the water inlet valve, the water injection plate is arranged at the lower side of the water inlet valve, the air injection plate is arranged at the lower side of the first transmission pipe, the lower side of the spray cylinder is provided with the drain valve, the second transmission pipe is connected with the gas output end of the spray cylinder, the gas input end of the turbo generator is connected with the right side of the second transmission pipe, the waste heat in the hearth can be conveniently and efficiently utilized.

Description

Furnace waste gas waste heat recovery utilizes device

Technical Field

The utility model relates to a furnace waste gas waste heat recovery utilizes device belongs to furnace waste gas waste heat recovery technical field.

Background

The industrial waste heat is generally divided into three types, namely high-temperature waste heat above 600 ℃, medium-temperature waste heat between 300 and 600 ℃ and low-temperature waste heat below 300 ℃; according to the source, the industrial waste heat can be divided into: flue gas waste heat, cooling medium waste heat, waste steam waste water waste heat, chemical reaction heat, high temperature product and slag waste heat, and combustible waste gas and waste material waste heat.

In the prior art, a large amount of heat is remained in a boiler furnace, so that hot water is used in life, but actually, because the temperature in the furnace is high, the hot water can be completely utilized to heat water to generate steam to drive a turbonator to work, so that a greater utilization value is generated, the existing furnace waste gas waste heat recovery utilization rate is not high, and a furnace waste gas waste heat recovery utilization device is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a furnace waste gas waste heat recovery utilizes device to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, the high-efficient waste heat in utilizing furnace of being convenient for.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a furnace waste gas waste heat recovery utilizes device, includes air-blower, boiler, transmission pipe one, spray cylinder, transmission pipe two, turbo generator, transmission pipe three, heat exchanger, gas spray plate, water spray plate, drain valve and water inlet valve, the air-blower is installed at the inlet end of boiler, transmission pipe one is connected at boiler exhaust end, spray cylinder installs in transmission pipe one right side, spray cylinder upside is equipped with water inlet valve, water spray plate installs in water inlet valve downside, gas spray plate installs in transmission pipe one downside, spray cylinder downside is equipped with the drain valve, transmission pipe two is connected at spray cylinder gas output end, turbo generator gas input end is connected with transmission pipe two right sides, transmission pipe three is connected at turbo generator gas output end, transmission pipe three right sides are installed the heat exchanger.

Furthermore, the water spraying plate is positioned under the air spraying plate, the lower end face of the air spraying plate is provided with air spraying holes, the upper end face of the water spraying plate is provided with water spraying holes, and the length and width specifications of the air spraying plate are the same as those of the air spraying plate.

Further, the lower side of the spray cylinder is of a bucket-shaped structure.

Further, the water inlet valve is connected with an external water source through a conduit.

Furthermore, the heat exchanger belongs to the type of a shell-and-tube heat exchanger, a waste gas outlet is formed in the upper side of the heat exchanger, a cold water inlet and a hot water outlet are formed in the right side of the heat exchanger, and the cold water inlet is externally connected with a cold water source.

The utility model has the advantages that: the utility model discloses a furnace waste gas waste heat recovery utilizes device, the boiler finishes using the back, the air-blower circular telegram, in the outside air gets into furnace, carry a large amount of heats along transmission pipe one conduction to a spray cylinder, and along jet-propelled board blowout, gas temperature is higher this moment, the external water source of income water valve access is followed the spray plate blowout, evaporate in the twinkling of an eye and produce steam with the high-temperature gas contact, steam and along two entering turbo generator internal drive turbo generator rotation electricity generation of transmission pipe, steam is followed transmission pipe three and is gone into the heat exchanger afterwards, through the external source of heat exchanger, heat cold water, discharge hot water side by side, heat make full use of in the furnace, the utility model discloses rational in infrastructure, the high-efficient waste heat in the furnace of being convenient for.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a furnace waste gas waste heat recycling device of the present invention;

FIG. 2 is a cross-sectional view of a spray cylinder in the waste heat recycling device for furnace waste gas of the present invention;

in the figure: 1-blower, 2-boiler, 3-first transmission pipe, 4-spray cylinder, 5-second transmission pipe, 6-turbonator, 7-third transmission pipe, 8-heat exchanger, 9-gas spray plate, 10-water spray plate, 11-water discharge valve and 12-water inlet valve.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: a hearth waste gas waste heat recycling device comprises an air blower 1, a boiler 2, a first transmission pipe 3, a spray cylinder 4, a second transmission pipe 5, a turbo generator 6, a third transmission pipe 7, a heat exchanger 8, a gas injection plate 9, a water injection plate 10, a drain valve 11 and a water inlet valve 12, wherein the air blower 1 is installed at the gas inlet end of the boiler 2, the first transmission pipe 3 is connected at the gas exhaust end of the boiler 2, the spray cylinder 4 is installed at the right side of the first transmission pipe 3, the water inlet valve 12 is assembled at the upper side of the spray cylinder 4, the water injection plate 10 is installed at the lower side of the water inlet valve 12, the gas injection plate 9 is installed at the lower side of the first transmission pipe 3, the drain valve 11 is assembled at the lower side of the spray cylinder 4, the second transmission pipe 5 is connected at the gas output end of the spray cylinder 4, the gas input end of the, the problem that furnace waste gas waste heat recovery utilization ratio is not high has been solved in this design.

The water spray plate 10 is located under the air spray plate 9, the end face of the air spray plate 9 is provided with air injection holes, the upper end face of the water spray plate 10 is provided with water spray holes, the length and width specifications of the air spray plate 9 are the same as those of the air spray plate 9, the water spray plate 10 is in direct contact with the air spray plate 9, steam is rapidly generated, the lower side of the spray cylinder 4 is of a bucket-shaped structure, and redundant hot water is collected and then led out along the drain valve 11 on the lower side of the spray cylinder 4.

The water inlet valve 12 is connected with an external water source through a guide pipe, the heat exchanger 8 is a shell-and-tube heat exchanger 8, a waste gas outlet is formed in the upper side of the heat exchanger 8, a cold water inlet and a hot water outlet are formed in the right side of the heat exchanger 8, the cold water inlet is externally connected with a cold water source, waste heat in gas is used for heating hot water through the heat exchanger 8, and heat in the gas is fully utilized.

The specific working principle and the using process are as follows: 2 backs that finish using of boiler, 1 circular telegram of air-blower, the outside air carries the heat to conduct to spray cylinder 4 along transmission pipe 3 in getting into furnace, and spout along jet plate 9, because the gas temperature is higher this moment, income water valve 12 inserts the outside water source and spouts along jet plate 10, evaporate and produce steam pressure in the twinkling of an eye with the high-temperature gas contact, steam pressure and follow transmission pipe two 5 and get into 6 interior drive turbo generator 6 of turbo generator and rotate the electricity generation, steam follows transmission pipe three 7 and gets into heat exchanger 8, through 8 external cold water sources of heat exchanger, heat cold water, discharge hot water, heat make full use of in the furnace.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a furnace waste gas waste heat recovery utilizes device which characterized in that: the water-saving boiler comprises a blower, a boiler, a first transmission pipe, a spray cylinder, a second transmission pipe, a turbo generator, a third transmission pipe, a heat exchanger, a gas spraying plate, a water draining valve and a water inlet valve, wherein the blower is installed at the gas inlet end of the boiler, the first transmission pipe is connected to the gas exhaust end of the boiler, the spray cylinder is installed on the right side of the first transmission pipe, the water inlet valve is assembled on the upper side of the spray cylinder, the water spraying plate is installed on the lower side of the water inlet valve, the gas spraying plate is installed on the lower side of the first transmission pipe, the water draining valve is assembled on the lower side of the spray cylinder, the second transmission pipe is connected to the gas output end of the spray cylinder, the gas input end of the turbo generator is connected.

2. The furnace waste gas waste heat recycling device according to claim 1, characterized in that: the water spraying plate is positioned under the air spraying plate, the lower end face of the air spraying plate is provided with air spraying holes, the upper end face of the water spraying plate is provided with water spraying holes, and the length and width specifications of the air spraying plate are the same as those of the air spraying plate.

3. The furnace waste gas waste heat recycling device according to claim 1, characterized in that: the lower side of the spray cylinder is of a bucket-shaped structure.

4. The furnace waste gas waste heat recycling device according to claim 1, characterized in that: the water inlet valve is connected with an external water source through a guide pipe.

5. The furnace waste gas waste heat recycling device according to claim 1, characterized in that: the heat exchanger belongs to the type of a shell-and-tube heat exchanger, a waste gas outlet is formed in the upper side of the heat exchanger, a cold water inlet and a hot water outlet are formed in the right side of the heat exchanger, and the cold water inlet is externally connected with a cold water source.