Energy-saving and emission-reducing device of gas-fired boiler

Abstract

The utility model discloses an energy-saving and emission-reducing device of a gas-fired boiler, and relates to the technical field of boilers. Comprising a boiler body, a gas distribution mechanism is installed at the position, corresponding to a smoke outlet, of the right side face of the boiler body, a water storage tank is fixedly installed on the right side face, corresponding to the gas distribution mechanism, of the boiler body, a water jacket is fixedly installed on the portion, close to the middle, of the outer surface of the boiler body, and a backflow mechanism is arranged on the lower surface of the water storage tank and communicates with the water jacket; a spraying mechanism is installed on the left side face of the water storage tank close to the upper position, a round hole is formed in the upper side wall of the water storage tank, a round sleeve is fixedly installed on the upper surface, corresponding to the round hole, of the water storage tank, and a filtering mechanism is arranged in the round sleeve. Pollutants in flue gas can be purified, discharged flue gas is cleaner, waste heat in the flue gas is recycled, water is heated through the waste heat, the boiler body is subjected to heat preservation through the heated water, heat loss of the boiler body is reduced, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a gas boiler energy-saving and emission-reduction device. Background Art

[0002] Gas boilers include gas-fired water boilers, gas-fired hot water boilers, gas-fired steam boilers, etc. Among them, gas-fired hot water boilers are also called gas-fired heating boilers and gas-fired bathing boilers. As the name suggests, gas boilers refer to boilers whose fuel is gas. Gas boilers are the most economical compared to oil-fired boilers and electric boilers, so most people choose gas boilers as boiler equipment for steam, heating, and bathing.

[0003] In the prior art, a large amount of high-temperature flue gas is discharged during the use of gas boilers. The waste heat and pollutant particles in the flue gas will pollute the environment. At the same time, the direct discharge of the flue gas waste heat causes waste. During the use of the gas boiler, the furnace body lacks insulation function, and a large amount of heat is lost through the furnace body, resulting in high energy consumption and poor practicality. Utility Model Content

[0004] The utility model provides a gas boiler energy-saving and emission-reducing device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas boiler energy-saving and emission reduction device, comprising a boiler body, an air distribution mechanism is installed at a position corresponding to the smoke outlet on the right side of the boiler body, a water storage tank is fixedly installed on the right side of the boiler body corresponding to the air distribution mechanism, a water jacket is fixedly installed on the outer surface of the boiler body near the middle, a reflux mechanism is provided on the lower surface of the water storage tank, and the reflux mechanism is connected to the water jacket, a spray mechanism is installed on the left side of the water storage tank near the upper position, and the spray mechanism is connected to the water jacket, a circular hole is opened on the upper side wall of the water storage tank, a circular sleeve is fixedly installed on the upper surface of the water storage tank corresponding to the circular hole, a filtering mechanism is arranged in the circular sleeve, an annular sealing cover is threadedly installed on the upper surface of the circular sleeve, and an inlet valve and an outlet valve are arranged on the front side of the water jacket.

[0006] Furthermore, a thermal insulation board is fixedly mounted on the inner wall of the water storage tank and the water jacket.

[0007] Furthermore, the reflux mechanism includes a water filter and a connecting pipe. The water filter is fixedly installed on the lower surface of the water tank. The water inlet and outlet of the water filter are respectively connected to the water tank and the water jacket through the connecting pipe.

[0008] Furthermore, the spray mechanism includes a water pump, a liquid distribution pipe, a nozzle and a liquid inlet pipe. The water pump is fixedly installed on the left side of the water tank. The liquid distribution pipe is installed on the water outlet of the water pump, and the liquid distribution pipe is inserted into the water tank. The lower surface of the liquid distribution pipe is evenly provided with nozzles, and the water inlet of the water pump is connected to the water jacket through the liquid inlet pipe.

[0009] Furthermore, the filtering mechanism comprises a metal filter, an activated carbon filter and a quartz sand filter, and the metal filter, the activated carbon filter and the quartz sand filter are placed in the circular sleeve in sequence from bottom to top.

[0010] Compared with the prior art, the utility model provides a gas boiler energy-saving and emission-reduction device, which has the following beneficial effects:

[0011] The gas boiler energy-saving and emission-reduction device can purify pollutants in the flue gas by arranging a spray mechanism and a filtering mechanism, making the exhausted flue gas cleaner. At the same time, the waste heat of the flue gas in the gas distribution mechanism heats the water sprayed from the water storage tank and the spray mechanism. The heated water flows back into the water jacket to keep the boiler body warm, reduce the heat loss of the boiler body, and achieve the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model.

[0014] In the figure: 1. boiler body; 2. gas distribution mechanism; 201. smoke exhaust pipe; 202. vertical pipe; 203. one-way exhaust valve; 3. water storage tank; 4. water jacket; 5. reflux mechanism; 501. water filter; 502. connecting pipe; 6. spray mechanism; 601. water pump; 602. liquid distribution pipe; 603. nozzle; 604. liquid inlet pipe; 7. round hole; 8. round sleeve; 9. filtering mechanism; 901. metal filter; 902. activated carbon filter; 903. quartz sand filter; 10. annular sealing cover; 11. water inlet valve; 12. water outlet valve; 13. thermal insulation board. DETAILED DESCRIPTION

[0015] 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.

[0016] See also Figure 1 and Figure 2The utility model discloses a gas boiler energy-saving and emission-reduction device, comprising a boiler body 1, an air distribution mechanism 2 is installed at a position corresponding to the smoke outlet on the right side of the boiler body 1, a water storage tank 3 is fixedly installed on the right side of the boiler body 1 corresponding to the air distribution mechanism 2, a water jacket 4 is fixedly installed on the outer surface of the boiler body 1 near the middle, a reflux mechanism 5 is arranged on the lower surface of the water storage tank 3, and the reflux mechanism 5 is communicated with the water jacket 4, a spray mechanism 6 is installed near the upper position on the left side of the water storage tank 3, and the spray mechanism 6 is communicated with the water jacket 4, a circular hole 7 is opened on the upper side wall of the water storage tank 3, a circular sleeve 8 is fixedly installed on the upper surface of the water storage tank 3 corresponding to the circular hole 7, a filtering mechanism 9 is arranged in the circular sleeve 8, an annular sealing cover 10 is threadedly installed on the upper surface of the circular sleeve 8, and an inlet valve 11 and an outlet valve 12 are arranged on the front side of the water jacket 4.

[0017] Specifically, the gas distribution mechanism 2 includes a smoke exhaust pipe 201, a vertical pipe 202 and a one-way exhaust valve 203. The smoke exhaust pipe 201 is fixedly installed on the smoke exhaust port of the boiler body 1. The smoke exhaust pipe 201 is inserted into the water storage tank 3. The front and rear sides of the smoke exhaust pipe 201 are evenly installed with vertical pipes 202. The front and rear sides of the vertical pipe 202 are evenly installed with one-way exhaust valves 203. The one-way exhaust valve 203 is arranged to be inclined downward, and the height of the one-way exhaust valve 203 is 5cm-8cm higher than the height of the water jacket 4.

[0018] In this embodiment, the smoke exhaust pipe 201 exhausts the smoke in the boiler body 1, the vertical pipe 202 increases the contact area between the smoke and the water in the water storage tank 3, and the one-way exhaust valve 203 allows the smoke in the vertical pipe 202 to be discharged evenly, while water is not easy to enter the one-way exhaust valve 203.

[0019] Specifically, a thermal insulation plate 13 is fixedly mounted on the inner wall of the water storage tank 3 and the water jacket 4 .

[0020] In this embodiment, the insulation board 13 provides a better insulation effect for the water storage tank 3 and the water jacket 4 .

[0021] Specifically, the reflux mechanism 5 includes a water filter 501 and a connecting pipe 502. The water filter 501 is fixedly installed on the lower surface of the water tank 3. The water inlet and outlet of the water filter 501 are connected to the water tank 3 and the water jacket 4 through the connecting pipe 502 respectively.

[0022] In this embodiment, the hot water in the water tank 3 flows into the water filter 501 through the connecting pipe 502 , the water filter 501 filters the oil and impurities in the water, and the hot water flows into the water jacket 4 .

[0023] Specifically, the spray mechanism 6 includes a water pump 601, a liquid distribution pipe 602, a nozzle 603 and a liquid inlet pipe 604. The water pump 601 is fixedly installed on the left side of the water tank 3. The liquid distribution pipe 602 is installed on the water outlet of the water pump 601, and the liquid distribution pipe 602 is inserted into the water tank 3. The nozzles 603 are evenly arranged on the lower surface of the liquid distribution pipe 602. The water inlet of the water pump 601 is connected to the water jacket 4 through the liquid inlet pipe 604.

[0024] In this embodiment, the water pump 601 draws the water in the water jacket 4 into the liquid distribution pipe 602 through the liquid inlet pipe 604, and then sprays it out through the nozzle 603. The sprayed water filters the impurities in the flue gas and is heated by the residual heat of the flue gas.

[0025] Specifically, the filtering mechanism 9 includes a metal filter 901 , an activated carbon filter 902 and a quartz sand filter 903 , and the metal filter 901 , the activated carbon filter 902 and the quartz sand filter 903 are placed in the circular sleeve 8 in sequence from bottom to top.

[0026] In this embodiment, the metal filter 901, the activated carbon filter 902 and the quartz sand filter 903 filter the impurities in the flue gas to make the exhausted flue gas cleaner.

[0027] When in use, the smoke in the boiler body 1 flows into the smoke exhaust pipe 201 in the gas distribution mechanism 2, and the smoke in the smoke exhaust pipe 201 flows into the vertical pipe 202. The vertical pipe 202 increases the contact area between the smoke and the water in the water storage tank 3. The one-way exhaust valve 203 allows the smoke in the vertical pipe 202 to be discharged evenly. The residual heat of the smoke in the vertical pipe 202 heats the water in the water storage tank 3. Through the spray mechanism 6, the water pump 601 draws the water in the water jacket 4 into the liquid distribution pipe 602 through the liquid inlet pipe 604, and then sprays it out through the nozzle 603. The sprayed water filters impurities in the smoke, and Heated by the waste heat of the flue gas, the hot water in the water tank 3 flows into the water filter 501 through the connecting pipe 502 in the reflux mechanism 5. The water filter 501 filters the oil and impurities in the water. The refluxed hot water flows into the water jacket 4 to form a cycle, which keeps the boiler body 1 warm and reduces the heat loss of the boiler body 1, thereby achieving the purpose of energy saving. The impurities in the flue gas are then filtered through the metal filter 901, the activated carbon filter 902 and the quartz sand filter 903 in the filtering mechanism 9, making the exhausted flue gas cleaner and more environmentally friendly and energy-saving.

[0028] To sum up, the gas boiler energy-saving and emission-reduction device can purify pollutants in the flue gas to make the exhausted flue gas cleaner, and at the same time recover the waste heat in the flue gas, heat water through the waste heat, and use the heated water to keep the boiler body 1 warm, thereby reducing the heat loss of the boiler body 1 and achieving the purpose of energy saving.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas boiler energy saving and emission reduction device, comprising a boiler body (1), characterized in that: An air distribution mechanism (2) is installed at a position corresponding to the smoke exhaust port on the right side of the boiler body (1); a water storage tank (3) is fixedly installed on the right side of the boiler body (1) corresponding to the air distribution mechanism (2); a water jacket (4) is fixedly installed near the middle of the outer surface of the boiler body (1); a reflux mechanism (5) is provided on the lower surface of the water storage tank (3), and the reflux mechanism (5) is connected to the water jacket (4); a spray mechanism (6) is installed near the upper position on the left side of the water storage tank (3), and the spray mechanism (6) is connected to the water jacket (4); a circular hole (7) is opened on the upper side wall of the water storage tank (3); a circular sleeve (8) is fixedly installed on the upper surface of the water storage tank (3) corresponding to the circular hole (7); a filtering mechanism (9) is arranged in the circular sleeve (8); an annular sealing cover (10) is threadedly installed on the upper surface of the circular sleeve (8); and a water inlet valve (11) and a water outlet valve (12) are arranged on the front side of the water jacket (4).

2. A gas boiler energy saving and emission reduction device according to claim 1, characterized in that: The gas distribution mechanism (2) comprises a smoke exhaust pipe (201), a vertical pipe (202) and a one-way exhaust valve (203); the smoke exhaust pipe (201) is fixedly mounted on the smoke exhaust port of the boiler body (1); the smoke exhaust pipe (201) is inserted into the water storage tank (3); the vertical pipes (202) are evenly mounted on the front and rear sides of the smoke exhaust pipe (201); the one-way exhaust valve (203) is evenly mounted on the front and rear sides of the vertical pipe (202); the one-way exhaust valve (203) is arranged to be inclined downward, and the height of the one-way exhaust valve (203) is 5 cm to 8 cm higher than the height of the water jacket (4).

3. A gas boiler energy saving and emission reduction device according to claim 1, characterized in that: A thermal insulation plate (13) is fixedly mounted on the inner wall of the water storage tank (3) and the water jacket (4).

4. A gas boiler energy saving and emission reduction device according to claim 1, characterized in that: The reflux mechanism (5) comprises a water filter (501) and a connecting pipe (502); the water filter (501) is fixedly mounted on the lower surface of the water storage tank (3); the water inlet and outlet of the water filter (501) are respectively connected to the water storage tank (3) and the water jacket (4) through the connecting pipe (502).

5. The gas boiler energy saving and emission reduction device according to claim 1, characterized in that: The spray mechanism (6) comprises a water pump (601), a liquid distribution pipe (602), a nozzle (603) and a liquid inlet pipe (604); the water pump (601) is fixedly mounted on the left side of the water storage tank (3); a liquid distribution pipe (602) is mounted on the water outlet of the water pump (601), and the liquid distribution pipe (602) is inserted into the water storage tank (3); nozzles (603) are evenly arranged on the lower surface of the liquid distribution pipe (602); and the water inlet of the water pump (601) is connected to the water jacket (4) through the liquid inlet pipe (604).

6. A gas boiler energy saving and emission reduction device according to claim 1, characterized in that: The filtering mechanism (9) comprises a metal filter (901), an activated carbon filter (902) and a quartz sand filter (903), wherein the metal filter (901), the activated carbon filter (902) and the quartz sand filter (903) are sequentially placed in the circular sleeve (8) from bottom to top.

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