CN216079869U

CN216079869U - Low-temperature flue gas waste heat recovery device

Info

Publication number: CN216079869U
Application number: CN202121948493.3U
Authority: CN
Inventors: 吴文元
Original assignee: Shanghai Kunze Energy Saving Equipment Co ltd
Current assignee: Shanghai Kunze Energy Saving Equipment Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-18
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the field of waste heat recovery, in particular to a low-temperature flue gas waste heat recovery device which comprises a heat conduction box and a heat conduction structure arranged in the heat conduction box, wherein two support frames are arranged on the outer wall of the heat conduction box, one side of the heat conduction box is connected with a heating structure, one end of the heat conduction structure is connected with a filtering structure, and a controller is arranged on the outer wall of the top of the heat conduction box. When the device is used, one end of the smoke tube is connected with the device for generating low-temperature smoke, liquid is added into the heat conduction box, the liquid wraps the smoke tube positioned in the heat conduction tube, the liquid enters the heat conduction plate, the smoke enters from one end of the smoke tube, and the temperature in the smoke is transferred to the liquid in the heat conduction box through the smoke tube and the heat conduction plate through the channel formed by the heat conduction plate, so that the heat exchange is carried out on the smoke.

Description

Low-temperature flue gas waste heat recovery device

Technical Field

The utility model relates to the technical field of waste heat recovery, in particular to a low-temperature flue gas waste heat recovery device.

Background

At present, the energy sources of China are mainly coal and petroleum, and a large amount of substances such as carbon dioxide and the like can be generated by burning coal, a coal-fired boiler refers to coal burning as fuel, the heat of the coal is converted to generate steam or become hot water, but not all the heat is converted effectively, and a part of the heat is consumed without work, so that the efficiency problem exists, and the efficiency of a large boiler is generally higher by 60-80%;

through the searched patents: a low-temperature flue gas waste heat recovery device (201922488856.9); this patent, through the heat pipe on the outer wall surface enameling fire have acid-resistant enamel layer, the heat pipe passes through annular boss and seal ring seal installation on the tube sheet, has improved the life of heat pipe, through a plurality of consecutive inversions the U type pipe outside the heat pipe forms two return circuits coolant passageway, has improved the circulation speed of two return circuits coolant, has improved heat transfer capacity and bearing capacity, but this patent is relatively poor to exhaust flue gas treatment, some material that contain in the flue gas can pollute the surrounding environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a low-temperature flue gas waste heat recovery device.

In order to achieve the purpose, the utility model adopts the following technical scheme:

low temperature flue gas waste heat recovery device, including heat conduction case with install at the inside heat conduction structure of heat conduction case, two support frames are installed to the outer wall of heat conduction case, and one side of heat conduction case be connected with the heating structure the one end of heat conduction structure is connected with filtration, and the top outer wall of heat conduction case installs the controller.

Preferably, the heat conduction structure includes the tobacco pipe of seal installation at heat conduction incasement wall both ends, connect the connector at the tobacco pipe both ends, the equidistance is seted up the mounting hole of establishing at the tobacco pipe both sides outer wall, is installed the sealing washer in the mounting hole, pegs graft and survey the heat-conducting plate of outer wall in the sealing washer, install the temperature sensor at tobacco pipe outer wall and connector inner wall.

Preferably, the heat conducting plate is hollow, and the outer walls of the two sides of the heat conducting plate are respectively provided with an inlet and an outlet.

Preferably, one side opening of heat conduction case, and opening part sealing mounting has the mounting panel, heating structure includes that the equidistance is installed the thermal-collecting tube in the mounting panel, is connected at the concentrated ring of the thermal-collecting tube other end, is connected at the connecting pipe at concentrated ring top and installs the water pump at heat conduction roof portion outer wall.

Preferably, the input end of the water pump is connected with the other end of the connecting pipe, and one end of the heat collecting pipe is communicated with the interior of the heat conducting box.

Preferably, the filtering structure comprises a water tank, a flow guide pipe connected to the outer wall of one end of the water tank, a filter screen installed inside the water tank, a cover plate installed on the outer wall of the top of the water tank and a smoke exhaust pipe connected to one end of the cover plate.

Preferably, the other end of the flow guide pipe is connected with a connecting port at one end of the smoke pipe, and the other end of the flow guide pipe is connected with a check valve.

Preferably, the outer wall of one side of the support frame, which is close to the heat conduction box, is welded with the buffer springs distributed at equal intervals, the other ends of the buffer springs are welded with the outer wall of the heat conduction box, the top of the outer wall of one side of the heat conduction box is provided with an adding port, and a check valve is installed in the adding port.

Preferably, the temperature sensor is connected with a signal input end of the controller through a signal wire, the water pump is connected with the controller through a wire, and the controller is connected with the power supply through a wire.

The utility model has the beneficial effects that:

1. when the device is used, one end of the smoke tube is connected with a device for generating low-temperature smoke, liquid is added into the heat conduction box, the liquid wraps the smoke tube positioned in the heat conduction pipe, the liquid enters the heat conduction plate, the smoke enters from one end of the smoke tube and passes through a channel formed by the heat conduction plate, the temperature in the smoke is transferred to the liquid in the heat conduction box through the smoke tube and the heat conduction plate, and heat exchange is carried out on the smoke;

2. the water pump pumps liquid in the heat conducting box through the connecting pipe, the concentrating ring and the heat collecting pipe, the liquid enters the heat collecting pipe, the water pump stops pumping, the heat collecting pipe heats the liquid inside under the action of sunlight, the temperature inside the heat conducting box is convenient to improve, when the temperature sensor detects that the temperature inside the heat conducting box is close to the temperature of low-temperature flue gas through the controller, the controller starts the water pump to pump the low-temperature liquid out, compared with the traditional mode, the heat exchange is convenient, and the liquid temperature rising speed is favorably improved;

3. flue gas after the heat transfer passes through the honeycomb duct and gets into in the water tank, adds water in the water tank, and the flue gas rises from the bottom of water tank, and gaseous from the tub of discharging fume after the sediment of water filters is discharged, compares in traditional mode, is favorable to improving the cleanliness factor of the flue gas of discharging, reduces the influence to the environment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a low-temperature flue gas waste heat recovery device provided by the utility model;

FIG. 2 is a schematic view of a heat conduction structure of the low-temperature flue gas waste heat recovery device provided by the utility model;

FIG. 3 is a schematic view of a heating structure of the low-temperature flue gas waste heat recovery device provided by the utility model;

FIG. 4 is a schematic structural view of a cross section of a heat conduction structure of the low-temperature flue gas waste heat recovery device provided by the utility model;

fig. 5 is a schematic diagram of a filter structure of the low-temperature flue gas waste heat recovery device provided by the utility model.

In the figure: the device comprises a heat conduction box 1, a heat conduction structure 2, a support frame 3, a heating structure 4, a filtering structure 5, a controller 6, a smoke tube 7, a connector 8, a mounting hole 9, a sealing ring 10, a heat conduction plate 11, a temperature sensor 12, a mounting plate 13, a heat collection tube 14, a centralized ring 15, a connecting tube 16, a water pump 17, a water tank 18, a flow guide tube 19, a filter screen 20, a cover plate 21 and a smoke discharge tube 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, the low-temperature flue gas waste heat recovery device comprises a heat conduction box 1 and a heat conduction structure 2 arranged inside the heat conduction box 1, wherein two support frames 3 are arranged on the outer wall of the heat conduction box 1, a heating structure 4 is connected to one side of the heat conduction box 1, a filtering structure 5 is connected to one end of the heat conduction structure 2, and a controller 6 is arranged on the outer wall of the top of the heat conduction box 1;

the heat conducting structure 2 comprises a smoke tube 7 which is hermetically arranged at two ends of the inner wall of the heat conducting box 1, connectors 8 connected at two ends of the smoke tube 7, mounting holes 9 which are equidistantly formed in the outer walls of two sides of the smoke tube 7, sealing rings 10 arranged in the mounting holes 9, a heat conducting plate 11 which is inserted in the sealing rings 10 and is used for measuring the outer wall, and temperature sensors 12 which are arranged on the outer wall of the smoke tube 7 and the inner wall of the connector 8;

the heat conducting plate 11 is hollow, and the inlet and the outlet are respectively arranged on the outer walls of two sides of the heat conducting plate 11;

one side of the heat conduction box 1 is provided with an opening, the mounting plate 13 is arranged at the opening and sealed, and the heating structure 4 comprises heat collecting pipes 14 which are arranged in the mounting plate 13 at equal intervals, a concentration ring 15 connected to the other end of the heat collecting pipes 14, a connecting pipe 16 connected to the top of the concentration ring 15 and a water pump 17 arranged on the outer wall of the top of the heat conduction box 1;

the input end of the water pump 17 is connected with the other end of the connecting pipe 16, and one end of the heat collecting pipe 14 is communicated with the interior of the heat conducting box 1;

the filtering structure 5 comprises a water tank 18, a flow guide pipe 19 connected to the outer wall of one end of the water tank 18, a filter screen 20 arranged inside the water tank 18, a cover plate 21 arranged on the outer wall of the top of the water tank 18 and a smoke exhaust pipe 22 connected to one end of the cover plate 21;

the other end of the draft tube 19 is connected with the connecting port 8 at one end of the smoke tube 7, and the check valve is connected with the other end of the draft tube 19;

the buffer springs distributed at equal intervals are welded on the outer wall of one side, close to the heat conduction box 1, of the support frame 3, the other ends of the buffer springs are welded with the outer wall of the heat conduction box 1, the adding port is formed in the top of the outer wall of one side of the heat conduction box 1, and the one-way valves are installed in the adding port;

temperature sensor 12 passes through signal line connection director 6's signal input part, and water pump 17 passes through wire connection director 6, and controller 6 passes through the wire and connects the power, compares in traditional mode, is favorable to improving the cleanliness factor of exhaust flue gas, reduces the influence to the environment, is favorable to carrying out the heat transfer to the flue gas, realizes heat recovery, and the heat transfer of being convenient for is favorable to improving liquid programming rate.

The working principle is as follows: when the device is used, one end of the smoke tube 7 is connected with a device for generating low-temperature smoke, liquid is added into the heat conduction box 1, the liquid wraps the smoke tube 7 positioned in the heat conduction box 1, the liquid enters the heat conduction plate 11, the smoke enters from one end of the smoke tube 7, the temperature in the smoke is transferred to the liquid in the heat conduction box 1 through the smoke tube 7 and the heat conduction plate 11 through a channel formed by the heat conduction plate 11 to exchange heat for the smoke, the water pump 17 pumps the liquid in the heat conduction box 1 through the connecting tube 16, the concentration ring 15 and the heat collection tube 14, the liquid enters the water pump 17 in the heat collection tube 14 to stop pumping, the heat collection tube 14 heats the liquid in the heat conduction box under the action of sunlight, the temperature in the heat conduction box 1 is convenient to be increased, when the temperature sensor 12 detects that the temperature in the heat conduction box 1 is close to the temperature of the low-temperature smoke through the controller 6, the controller 6 starts the water pump 17 to pump the low-temperature liquid to pump out the low-temperature liquid, the flue gas after heat exchange enters the water tank 18 through the draft tube 19, water is added into the water tank 18, the flue gas rises from the bottom of the water tank 18, and the gas is discharged from the smoke discharge pipe 22 after being precipitated and filtered by the water.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Low temperature flue gas waste heat recovery device, including heat conduction case (1) and install heat conduction structure (2) at heat conduction case (1) inside, its characterized in that, two support frames (3) are installed to the outer wall of heat conduction case (1), and one side of heat conduction case (1) is connected with heating structure (4) the one end of heat conduction structure (2) is connected with filtration (5), and controller (6) are installed to the top outer wall of heat conduction case (1).

2. The low-temperature flue gas waste heat recovery device according to claim 1, wherein the heat conducting structure (2) comprises a flue pipe (7) hermetically installed at two ends of the inner wall of the heat conducting box (1), connecting ports (8) connected to two ends of the flue pipe (7), mounting holes (9) equidistantly formed in the outer walls of two sides of the flue pipe (7), a sealing ring (10) installed in the mounting hole (9), a heat conducting plate (11) inserted into the inner side outer wall of the sealing ring (10), and a temperature sensor (12) installed on the outer wall of the flue pipe (7) and the inner wall of the connecting port (8).

3. The low-temperature flue gas waste heat recovery device according to claim 2, wherein the heat conducting plate (11) is hollow, and an inlet and an outlet are respectively formed on the outer walls of two sides of the heat conducting plate (11).

4. The low-temperature flue gas waste heat recovery device according to claim 1, wherein one side of the heat conduction box (1) is open, a mounting plate (13) is mounted at the opening in a sealing manner, and the heating structure (4) comprises heat collecting pipes (14) mounted in the mounting plate (13) at equal intervals, a concentration ring (15) connected to the other end of each heat collecting pipe (14), a connecting pipe (16) connected to the top of the concentration ring (15), and a water pump (17) mounted on the outer wall of the top of the heat conduction box (1).

5. The low-temperature flue gas waste heat recovery device according to claim 4, wherein an input end of the water pump (17) is connected with the other end of the connecting pipe (16), and one end of the heat collecting pipe (14) is communicated with the inside of the heat conducting box (1).

6. The low-temperature flue gas waste heat recovery device according to claim 1, wherein the filtering structure (5) comprises a water tank (18), a guide pipe (19) connected to the outer wall of one end of the water tank (18), a filter screen (20) installed inside the water tank (18), a cover plate (21) installed on the outer wall of the top of the water tank (18), and a smoke exhaust pipe (22) connected to one end of the cover plate (21).

7. The low-temperature flue gas waste heat recovery device according to claim 6, wherein the other end of the draft tube (19) is connected with the connecting port (8) at one end of the flue tube (7), and the other end of the draft tube (19) is connected with a check valve.

8. The low-temperature flue gas waste heat recovery device according to claim 1, wherein the outer wall of one side of the support frame (3) close to the heat conduction box (1) is welded with buffering springs distributed at equal intervals, the other end of each buffering spring is welded with the outer wall of the heat conduction box (1), an adding opening is formed in the top of the outer wall of one side of the heat conduction box (1), and a check valve is installed in the adding opening.

9. The low-temperature flue gas waste heat recovery device according to claim 2, wherein the temperature sensor (12) is connected with a signal input end of the controller (6) through a signal line, the water pump (17) is connected with the controller (6) through a lead, and the controller (6) is connected with a power supply through a lead.