Boiler heat energy recovery device

Abstract

The utility model relates to the technical field of heat energy recovery, in particular to a boiler heat energy recovery device. According to the technical scheme, the device comprises a supporting block, a water tank, a sealing cover and a control panel, a communicating pipe is installed on the upper side of one end of the water tank in a communicating mode and located on one side of the interior of the water tank, radiating pipes are installed on the lower side of the end, located on the water tank, of the communicating pipe in a communicating mode at equal intervals, and the lower ends of the radiating pipes are arc-shaped; a flange plate is fixed to the outer side of the end, located on the water tank, of the communicating pipe, a fan is fixed to the interior of the end, located on the flange plate, of the communicating pipe, and a drainage pipe is installed in the middle of the lower side of the end, located on the flange plate, of the water tank in a communicating mode; a water inlet pipe is communicated with the middle of the upper side of the end, away from the drainage pipe, of the water tank, and control valves are movably mounted in the middles of the drainage pipe and the water inlet pipe. The boiler tail gas heat recovery device has the advantage of being beneficial to recovery of heat energy of tail gas exhausted by the boiler.

Description

Technical Field

[0001] The utility model relates to the technical field of heat recovery, in particular to a boiler heat recovery device. Background Art

[0002] A boiler is an energy conversion device. The energy that can be input into the boiler includes chemical energy in the fuel, electrical energy, etc., and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The boiler is mainly composed of two parts: the "pot" and the "furnace". The "pot" is the main body of the boiler, which includes the drum (steam drum), water-cooled wall tubes, convection tube bundles, downcomers, headers (headers), superheaters, economizers and other pressure-bearing parts, which form a closed pressure part for holding boiler water and steam. The "furnace" is composed of combustion equipment, furnace walls, furnace arches and steel frames, and is the part that burns the fuel to produce hot flue gas.

[0003] When the boiler is in use, the exhaust gas needs to be discharged to the outside due to the need to generate heat. However, the temperature of the exhaust gas is relatively high. Directly discharging it into the air pollutes the air and wastes heat energy. In order to improve the utilization rate of resources, a device is now needed that is conducive to recovering the heat energy of the exhaust gas discharged from the boiler. Utility Model Content

[0004] The purpose of the utility model is to provide a boiler heat energy recovery device, which has the advantage of being conducive to realizing the recovery of heat energy of boiler exhaust gas, and solves the problem that the exhaust gas has a high temperature and is directly discharged into the air, which is a pollution to the air and a waste of heat energy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler heat recovery device, comprising a supporting block, a water tank, a sealing cover and a control panel, a connecting pipe is installed on the upper side of one end of the water tank, and the connecting pipe is located on one side of the inner part of the water tank, the connecting pipe is equidistantly connected and installed with heat dissipation pipes on the lower side of one end of the water tank, and the lower end of the heat dissipation pipe is arc-shaped, the end of the heat dissipation pipe away from the connecting pipe is higher than the lower side of the connecting pipe, a flange is fixed on the outer side of one end of the connecting pipe located in the water tank, a fan is fixed inside the end of the connecting pipe located in the flange, a drain pipe is installed in communication with the middle part of the lower side of one end of the flange of the water tank, an inlet pipe is installed in communication with the middle part of the upper side of one end of the water tank away from the drain pipe, and control valves are movably installed in the middle of the drain pipe and the inlet pipe.

[0006] Preferably, fixing buckles are movably installed on the lower ends of both sides of the sealing cover, and the sealing cover is fixed to the upper end of the water tank by the fixing buckles. A smoke exhaust pipe is connected and installed in the middle of the upper end of the sealing cover, and the length and width of the outer side of the lower end of the sealing cover are equal to the length and width of the outer side of the water tank.

[0007] Preferably, there are four support blocks in total, and the four support blocks are respectively fixed at the four corners of the lower end surface of the water tank.

[0008] Preferably, the diameters of the drainage pipe and the water inlet pipe are equal, and the water inlet pipe is located at the lower side of the connecting pipe.

[0009] Preferably, the control panel is embedded in the middle of the upper front end of the water tank, and a display screen and buttons are respectively embedded at both ends of the control panel on the side facing away from the water tank, and the display screen and buttons are electrically connected to the control panel through wires, and the control panel is electrically connected to the control valve and the fan through wires, respectively, and a liquid level sensor and a temperature sensor are fixed to the inner side wall of the water tank, and the liquid level sensor and the temperature sensor are electrically connected to the control panel through wires.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model is conducive to realizing the effect of recovering the heat energy of exhaust gas by arranging the heat dissipation pipe and the fan. Cold water is injected into the interior of the water tank, and one end of the connecting pipe is connected to the boiler exhaust pipe through a flange. The fan is started by the control of a button to make the exhaust gas of the boiler enter the connecting pipe, and the exhaust gas in the connecting pipe is discharged outwardly through the heat dissipation pipe. At the same time, the heat dissipation pipe is located in the cold water. Under the action of the cold water, the exhaust gas in the heat dissipation pipe can be dissipated, thereby realizing the heating of the cold water. At the same time, the exhaust gas after heat dissipation can be discharged outwardly through the exhaust pipe.

[0012] 2. The utility model is advantageous for storing and using heated hot water by arranging a water tank and a drain pipe. After the cold water is heated by the exhaust gas inside the water tank, the control valve can be opened by the control of a button to discharge the hot water inside the water tank to the outside, which is convenient for the use of hot water. At the same time, the water volume and temperature can be monitored by the liquid level sensor and temperature sensor inside the water tank, and the monitored data are displayed on the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0015] Figure 3 It is a side view structural schematic diagram of the utility model;

[0016] Figure 4 It is a right oblique structural schematic diagram of the utility model;

[0017] Figure 5 It is a left oblique structural schematic diagram of the utility model.

[0018] In the figure: 1. Support block; 2. Water tank; 3. Heat dissipation pipe; 4. Drain pipe; 5. Control valve; 6. Flange; 7. Fan; 8. Connecting pipe; 9. Sealing cover; 10. Smoke exhaust pipe; 11. Fixing buckle; 12. Water inlet pipe; 13. Control panel; 14. Display screen; 15. Button. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-Figure 5 The utility model provides an embodiment: a boiler heat recovery device, comprising a supporting block 1, a water tank 2, a sealing cover 9 and a control board 13, a connecting pipe 8 is installed on the upper side of one end of the water tank 2, and the connecting pipe 8 is located on one side of the inner part of the water tank 2, and the connecting pipe 8 is located on the lower side of one end of the water tank 2 and is equidistantly connected and connected with a heat dissipation pipe 3, and the lower end of the heat dissipation pipe 3 is arc-shaped, and the end of the heat dissipation pipe 3 away from the connecting pipe 8 is higher than the lower side of the connecting pipe 8, a flange 6 is fixed on the outer side of the connecting pipe 8 at one end of the water tank 2, and a fan 7 is fixed inside the end of the connecting pipe 8 at the flange 6, a drain pipe 4 is installed in communication with the middle part of the lower side of one end of the flange 6 of the water tank 2, and an inlet pipe 12 is installed in communication with the middle part of the upper side of one end of the water tank 2 away from the drain pipe 4, and a control valve 5 is movably installed in the middle of the drain pipe 4 and the inlet pipe 12.

[0022] The lower ends of both sides of the sealing cover 9 are movably installed with fixing buckles 11, and the sealing cover 9 is fixed to the upper end of the water tank 2 by the fixing buckles 11. The middle of the upper end of the sealing cover 9 is connected with a smoke exhaust pipe 10, and the length and width of the outer side of the lower end of the sealing cover 9 are equal to the length and width of the outer side of the water tank 2.

[0023] There are four support blocks 1 in total, and the four support blocks 1 are respectively fixed at the four corners of the lower end surface of the water tank 2 .

[0024] The control board 13 is embedded in the middle of the upper front end of the water tank 2. A display screen 14 and a button 15 are respectively embedded at both ends of the side of the control board 13 facing away from the water tank 2. The display screen 14 and the button 15 are electrically connected to the control board 13 through wires. The control board 13 is electrically connected to the control valve 5 and the fan 7 through wires. A liquid level sensor and a temperature sensor are fixed to the inner side wall of the water tank 2, and the liquid level sensor and the temperature sensor are electrically connected to the control board 13 through wires.

[0025] Cold water is injected into the water tank 2, and one end of the connecting pipe 8 is connected to the boiler exhaust pipe through the flange 6. The fan 7 is started by the control of the button 15, so that the exhaust gas of the boiler enters the connecting pipe 8, and the exhaust gas in the connecting pipe 8 is discharged outward through the heat dissipation pipe 3. At the same time, the heat dissipation pipe 3 is located in the cold water. Under the action of the cold water, the exhaust gas in the heat dissipation pipe 3 can be dissipated, thereby realizing the heating of the cold water. At the same time, the exhaust gas after heat dissipation can be discharged outward through the exhaust pipe 10.

[0026] Embodiment 2

[0027] See also Figure 1-Figure 5 , the utility model provides an embodiment: a boiler heat recovery device. Compared with the first embodiment, this embodiment also includes: a supporting block 1, a water tank 2, a sealing cover 9 and a control board 13. A connecting pipe 8 is installed on the upper side of one end of the water tank 2, and the connecting pipe 8 is located on one side of the inner part of the water tank 2. The connecting pipe 8 is located on the lower side of one end of the water tank 2 and is equidistantly connected and connected with a heat dissipation pipe 3, and the lower end of the heat dissipation pipe 3 is arc-shaped, and the end of the heat dissipation pipe 3 away from the connecting pipe 8 is higher than the lower side of the connecting pipe 8. The connecting pipe 8 is fixed with a flange 6 on the outside of one end of the water tank 2, and a fan 7 is fixed inside the end of the flange 6 of the connecting pipe 8. The middle part of the lower side of one end of the water tank 2 located at the flange 6 is connected with a drain pipe 4, and the middle part of the upper side of the end of the water tank 2 away from the drain pipe 4 is connected with an inlet pipe 12, and a control valve 5 is movably installed in the middle of the drain pipe 4 and the inlet pipe 12.

[0028] The diameters of the drain pipe 4 and the water inlet pipe 12 are equal, and the water inlet pipe 12 is located at the lower side of the connecting pipe 8 .

[0029] After the cold water is heated by the exhaust gas inside the water tank 2, the control valve 5 can be opened by the control of the button 15 to discharge the hot water inside the water tank 2 to facilitate the use of the hot water. At the same time, the water volume and temperature can be monitored by the liquid level sensor and temperature sensor inside the water tank 2, and the monitored data are displayed on the display screen 14.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A boiler heat recovery device, comprising a support block (1), a water tank (2), a sealing cover (9) and a control panel (13), characterized in that: A connecting pipe (8) is installed on the upper side of one end of the water tank (2), and the connecting pipe (8) is located on one side of the interior of the water tank (2). A heat dissipation pipe (3) is installed on the lower side of the one end of the water tank (2) at an equal distance from the connecting pipe (8), and the lower end of the heat dissipation pipe (3) is in an arc shape. The end of the heat dissipation pipe (3) away from the connecting pipe (8) is higher than the lower side of the connecting pipe (8). A flange (6) is fixed on the outer side of the connecting pipe (8) located at one end of the water tank (2). A fan (7) is fixed inside the end of the connecting pipe (8) located at the flange (6). A drain pipe (4) is installed in communication with the middle of the lower side of one end of the water tank (2) located at the flange (6). A water inlet pipe (12) is installed in communication with the middle of the upper side of one end of the water tank (2) away from the drain pipe (4). A control valve (5) is movably installed in the middle of the drain pipe (4) and the water inlet pipe (12).

2. A boiler heat recovery device according to claim 1, characterized in that: The lower ends of both sides of the sealing cover (9) are movably provided with fixing buckles (11), the sealing cover (9) is fixed to the upper end of the water tank (2) by the fixing buckles (11), the middle of the upper end of the sealing cover (9) is connected with a smoke exhaust pipe (10), and the length and width of the outer side of the lower end of the sealing cover (9) are equal to the length and width of the outer side of the water tank (2).

3. A boiler heat recovery device according to claim 1, characterized in that: There are four support blocks (1) in total, and the four support blocks (1) are respectively fixed at the four corners of the lower end surface of the water tank (2).

4. A boiler heat recovery device according to claim 1, characterized in that: The diameters of the drainage pipe (4) and the water inlet pipe (12) are equal, and the water inlet pipe (12) is located at the lower side of the connecting pipe (8).

5. A boiler heat recovery device according to claim 1, characterized in that: The control panel (13) is embedded in the middle of the upper front end of the water tank (2); a display screen (14) and a button (15) are respectively embedded at both ends of the side of the control panel (13) facing away from the water tank (2); the display screen (14) and the button (15) are both electrically connected to the control panel (13) through wires; the control panel (13) is respectively electrically connected to the control valve (5) and the fan (7) through wires; a liquid level sensor and a temperature sensor are fixed to the inner side wall of the water tank (2); and the liquid level sensor and the temperature sensor are both electrically connected to the control panel (13) through wires.

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