CN215259907U

CN215259907U - Flue gas waste heat recovery device of gas wall-mounted boiler

Info

Publication number: CN215259907U
Application number: CN202120995330.4U
Authority: CN
Inventors: 李春江; 李晓凤; 耿义海
Original assignee: Qingdao Haiang Hvac Equipment Co ltd
Current assignee: Qingdao Haiang Hvac Equipment Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-12-21
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a flue gas waste heat recovery device of a gas wall hanging furnace, which belongs to the technical field of relevant devices of the gas wall hanging furnace, and comprises a smoke chamber, one side of the top of the inner side wall of the smoke chamber is fixedly connected with an air chamber through a baffle, the air inlet of the air chamber is connected with an air blower, the air outlet of the air chamber is connected with an air bag, the inner side wall of the air chamber is detachably provided with a first heat exchange tube and a first heat exchange tube penetrating through the baffle, the other side of the top of the smoke chamber is fixedly connected with a water chamber through the baffle, the water inlet of the water chamber is connected with a cold water supply device through a first valve and a pipeline, the water outlet of the water chamber is connected with a heat preservation water tank through a water pump and a pipeline, the water outlet of the heat preservation water tank is provided with a second valve, the flue gas waste heat recovery device of the gas wall hanging furnace adopts a mode of combining gas-gas recovery and gas-water recovery, the flue gas waste heat is more thoroughly and efficiently recovered.

Description

Flue gas waste heat recovery device of gas wall-mounted boiler

Technical Field

The utility model relates to a relevant device field of gas hanging stove specifically is a flue gas waste heat recovery device of gas hanging stove.

Background

The wall-mounted gas heating stove has originated in Europe for the earliest time, has had a history of hundreds of years, and now, because the wall-mounted stove of European lineage development history is long, and the technology is mature, high quality becomes the pet in market, "the wall-mounted stove" is the global name: the 'gas wall-mounted heating stove' is called by Chinese standard: the wall-mounted gas water heater for quick heating is essentially different from a water heater, the wall-mounted gas furnace has a powerful household central heating function and can meet the heating requirements of multiple rooms, the warming function of the wall-mounted gas furnace is influenced by two factors, namely local climate conditions and building warming conditions, the wall-mounted gas furnace is used very frequently and plays a very convenient role in life of people, the existing wall-mounted gas furnace has smoke generated when in use, the smoke contains much heat, but the heat in the existing smoke is not properly utilized, the smoke is directly discharged, energy is wasted, and the environment is polluted.

The traditional flue gas waste heat recovery device of the wall-mounted gas furnace is immature in technology, only flue gas is used for heating cold water, the temperature of the flue gas is very high, even reaches hundreds of degrees, the boiling point of water is only 100 degrees, and when the boiling point of water is reached, a pipeline is easy to expand, damage or even burst, so that the device is very dangerous and cannot safely, efficiently and thoroughly utilize the flue gas waste heat; therefore, the technical personnel in the field provide a flue gas waste heat recovery device of a gas wall-mounted boiler to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flue gas waste heat recovery device of a gas wall-mounted furnace, which adopts a gas-gas recovery and gas-water recovery combined mode to more thoroughly and efficiently recover flue gas waste heat, when in use, an external power supply supplies power, an air blower and a water pump are opened through an external switch, a first valve, a second valve and a valve of a gas outlet of a gas bag are opened, high-temperature flue gas flows upwards from a left channel to scour a first heat exchange pipe, the first heat exchange pipe absorbs heat, the heat release temperature of the flue gas is preliminarily reduced, the first heat exchange pipe transmits the absorbed heat into an air chamber at the upper part, the air blower ceaselessly blows clean cold air into the air chamber, the cold air in the air chamber scours the first heat exchange pipe, the first heat exchange pipe releases heat, the heat absorption temperature of the air is raised, and the high-temperature air flows into the gas bag through a pipeline, and then the flue gas flows to a combustion chamber of the gas wall-mounted boiler from the gas bag for combustion supporting (the high-temperature gas in the gas bag can also preheat the combustion chamber), the flue gas after primary cooling flows to a second heat exchange tube, the second heat exchange tube absorbs heat, the heat release temperature of the flue gas is further reduced, the second heat exchange tube conducts the absorbed heat to a water chamber at the upper part, a cold water supply device continuously provides cold water to the water chamber, the cold water in the water chamber is heated into warm water by the second heat exchange tube and then is pumped into a heat-insulating water bucket by a water pump for standby, and the waste heat is thoroughly utilized so as to solve the problems in the background technology.

In order to achieve the above object, the utility model provides a following technical scheme:

including the smoke chamber, baffle fixedly connected with air chamber is passed through to smoke chamber inside wall top one side, the air inlet of air chamber is connected with the air-blower, the gas outlet of air chamber is connected with the gas pocket, air chamber inside wall demountable installation has first heat exchange tube and first heat exchange tube to run through the baffle, baffle fixedly connected with hydroecium is passed through to smoke chamber top opposite side, the water inlet of hydroecium has cold water supply device through first valve and pipe connection, there is holding water box water delivery port of hydroecium through water pump and pipe connection, the second valve is installed to holding water box water delivery port, hydroecium inside wall demountable installation has second heat exchange tube and second heat exchange tube to run through the baffle, there is the treatment box outlet of smoke chamber through pipe connection.

As a further aspect of the present invention: the treatment box is characterized in that a grid is installed on one side of the inner side wall of the treatment box, a filter box is installed on the other side of the inner side wall of the treatment box, activated carbon is filled in the filter box, a first filter chamber is formed between the inner side wall of the treatment box and the grid, and a second filter chamber is formed between the grid and the filter box.

As a further aspect of the present invention: first row of giving up mouth has been seted up to first filter chamber bottom, second row of giving up mouth has been seted up to second filter chamber bottom, first row of giving up mouth and second row of giving up mouth all can be dismantled and be connected with sealed lid.

As a further aspect of the present invention: the filter screen box is characterized in that a feed port is formed in the top of the filter screen box, a discharge port is formed in the bottom of the filter screen box, and the feed port and the discharge port are detachably connected with a sealing cover.

As a further aspect of the present invention: the heat exchanger is characterized in that mounting rings are welded at the middle parts of the first heat exchange tube and the second heat exchange tube, screw holes are formed in the surfaces of the mounting rings, and the mounting rings are detachably connected with the baffle through the screw holes, bolts and nuts.

As a further aspect of the present invention: the smoke inlet of smoke chamber has the exhaust port of gas hanging stove through the pipe connection, the exhaust port of handling the case has the chimney through the pipe connection, the gas vent of gas package has the combustion chamber of gas hanging stove through pipeline and valve connection.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flue gas waste heat recovery device of gas hanging stove adopts the mode of gas-gas recovery and gas-water recovery combination, more thoroughly, the flue gas waste heat is retrieved to the efficient, in use, external power supply supplies power, open air-blower and water pump through external switch, open the valve of first valve, second valve and gas bag gas outlet, high temperature flue gas flows upwards from the left side passageway and erodes first heat exchange tube, first heat exchange tube absorbs heat, flue gas exothermic temperature drops tentatively, first heat exchange tube conducts the heat that absorbs to the gas chamber on upper portion, the air-blower blows clean cold air to the gas chamber ceaselessly, the cold air in the gas chamber erodes first heat exchange tube, first heat exchange tube releases heat, air heat absorption temperature rises, high temperature air flows to the gas bag through the pipeline, flow to the combustion chamber of gas hanging stove from the gas bag again (the high temperature gas in the combustion-supporting gas bag can preheat the combustion chamber), the flue gas after preliminary cooling flows to the second heat exchange tube, the second heat exchange tube absorbs heat, the heat release temperature of the flue gas further drops, the second heat exchange tube conducts the absorbed heat to the water chamber on the upper portion, the cold water supply device continuously provides cold water to the water chamber, the cold water in the water chamber is heated into warm water by the second heat exchange tube and then pumped into the heat preservation bucket by the water pump for standby, the waste heat is thoroughly utilized, and the problem that the flue gas waste heat recovery device of the traditional gas wall-mounted furnace cannot safely, efficiently and thoroughly utilize the flue gas waste heat is solved.

Drawings

Fig. 1 is a schematic view of the overall structure of a flue gas waste heat recovery device of a gas wall-mounted boiler according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a treatment box of a flue gas waste heat recovery device of a gas wall-mounted boiler according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the first heat exchange tube of the flue gas waste heat recovery device of the gas wall-hanging furnace according to the embodiment of the present invention.

In the figure: 1. air bags; 2. an air chamber; 3. a blower; 4. a smoking chamber; 5. a pipeline; 6. a first heat exchange tube; 7. a baffle plate; 8. a second heat exchange tube; 9. a treatment tank; 10. a first valve; 11. a water pump; 12. a heat preservation water tank; 13. a second valve; 14. a water chamber; 15. a mounting ring; 16. a bolt; 17. a screw hole; 18. a nut; 19. a first filtering chamber; 20. a second filtering chamber; 21. a first waste discharge port; 22. a second waste discharge port; 23. a discharging port; 24. a feed inlet; 25. a sealing cover; 26. a filter net cage; 27. activated carbon; 28. a grid.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, a flue gas waste heat recovery device of a gas wall hanging furnace comprises a smoke chamber 4, one side of the top of the inner side wall of the smoke chamber 4 is fixedly connected with an air chamber 2 through a baffle 7, an air inlet of the air chamber 2 is connected with an air blower 3, an air outlet of the air chamber 2 is connected with an air bag 1, the inner side wall of the air chamber 2 is detachably mounted with a first heat exchange tube 6, the first heat exchange tube 6 penetrates through the baffle 7, the other side of the top of the smoke chamber 4 is fixedly connected with a water chamber 14 through the baffle 7, a water inlet of the water chamber 14 is connected with a cold water supply device through a first valve 10 and a pipeline 5, a water outlet of the water chamber 14 is connected with a heat preservation water tank 12 through a water pump 11 and the pipeline 5, a second valve 13 is mounted at a water outlet of the heat preservation water tank 12, a second heat exchange tube 8 is detachably mounted on the inner side wall of the water chamber 14, and the second heat exchange tube 8 penetrates through the baffle 7, the outlet of smoke chamber 4 is connected with through pipeline 5 and handles case 9, the utility model discloses flue gas waste heat recovery device of gas hanging stove adopts the mode that gas-gas recovery and gas-water recovery combine, and flue gas waste heat is retrieved to more thorough, efficient.

Wherein, handle case 9 inside wall one side and install grid 28, handle case 9 inside wall opposite side and install filter net case 26, filter net case 26 is inside to be filled with active carbon 27, it constitutes first filter chamber 19 to handle between case 9 inside wall and the grid 28, constitute second filter chamber 20 between grid 28 and the filter net case 26, the flue gas gets into to handle in the case 9, is earlier by grid 28 primary filtration, is filtered by filter net case 26 secondary again, is discharged after being adsorbed by active carbon 27 at last.

Wherein, first row of useless mouth 21 has been seted up to first filter chamber 19 bottom, second row of useless mouth 22 has been seted up to second filter chamber 20 bottom, first row of useless mouth 21 and second row of useless mouth 22 all can be dismantled and be connected with sealed lid 25, conveniently arrange useless.

The top of the filter net box 26 is provided with a feed port 24, the bottom of the filter net box 26 is provided with a discharge port 23, and the feed port 24 and the discharge port 23 are both detachably connected with a sealing cover 25, so that the active carbon 27 in the filter net box 26 can be conveniently replaced.

Wherein, first heat exchange tube 6 and second heat exchange tube 8 middle part all welded have collar 15, screw 17 has been seted up on collar 15 surface and can be dismantled with baffle 7 through screw 17, bolt 16 and nut 18 and be connected, conveniently dismantle and change first heat exchange tube 6 and second heat exchange tube 8.

Wherein, the smoke inlet of smoke chamber 4 is connected with the exhaust port of gas hanging stove through pipeline 5, the exhaust port of handling case 9 is connected with the chimney through pipeline 5, the gas vent of gas package 1 is connected with the combustion chamber of gas hanging stove through pipeline 5 and valve, convenient work.

The utility model discloses a theory of operation is: the external power supply supplies power, the blower 3 and the water pump 11 are turned on by the external switch (the model of the blower 3 is 2X-4G, the working principle is that the pumped gas is sucked into a space V0 between the rotor and the pump shell from the air inlet due to the continuous rotation of the rotor and then is discharged from the air outlet, the gas in the pump cavity is not compressed and expanded due to the full-closed state of the V0 space after air suction, but when the top of the rotor rotates over the edge of the air outlet and the V0 space is communicated with the air outlet side, the single dust remover has a part of gas which is flushed back into the space V0 due to the high pressure of the gas at the air outlet side, so that the pressure of the gas is increased suddenly, when the rotor continues to rotate, the water pump 11 is KB600, the working principle is that the suction pipe and the pump are filled with liquid before the pump is started, the impeller rotates at high speed after the pump is started, and the liquid in the impeller rotates along with the blades, under the action of centrifugal force, the flying impeller is ejected outwards, the speed of ejected liquid in a pump shell diffusion chamber is gradually reduced, the pressure is gradually increased, then the liquid flows out from an outlet of the pump and a discharge pipe, a first valve 10, a second valve 13 and valves at an air outlet of an air bag 1 are opened, high-temperature flue gas flows upwards from a left channel to wash a first heat exchange tube 6, the first heat exchange tube 6 absorbs heat, the heat release temperature of the flue gas is preliminarily reduced, the first heat exchange tube 6 conducts the absorbed heat into an air chamber 2 at the upper part, a blower 3 continuously blows clean cold air into the air chamber 2, the cold air in the air chamber 2 washes the first heat exchange tube 6, the first heat exchange tube 6 releases heat, the heat absorption temperature of the air is increased, the high-temperature air flows into the air bag 1 through a pipeline 5 and then flows into a combustion chamber of the gas wall-mounted furnace for combustion supporting (the high-temperature gas in the air bag 1 can also preheat the combustion chamber), the flue gas after preliminary temperature reduction flows to a second heat exchange tube 8, the second heat exchange tube 8 absorbs heat, the heat release temperature of the flue gas is further reduced, the second heat exchange tube 8 conducts the absorbed heat to the upper water chamber 14, the cold water supply device continuously supplies cold water to the water chamber 14, the cold water in the water chamber is heated into warm water by the second heat exchange tube 8 and then is pumped into the heat preservation water tank 12 by the water pump 11 for standby, and the waste heat is completely utilized.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a flue gas waste heat recovery device of gas hanging stove, includes smoke chamber (4), its characterized in that: the heat exchanger is characterized in that one side of the top of the inner side wall of the smoke chamber (4) is fixedly connected with an air chamber (2) through a baffle (7), an air inlet of the air chamber (2) is connected with an air blower (3), an air outlet of the air chamber (2) is connected with an air bag (1), the inner side wall of the air chamber (2) is detachably provided with a first heat exchange tube (6) and the first heat exchange tube (6) penetrates through the baffle (7), the other side of the top of the smoke chamber (4) is fixedly connected with a water chamber (14) through the baffle (7), a water inlet of the water chamber (14) is connected with a cold water supply device through a first valve (10) and a pipeline (5), a water outlet of the water chamber (14) is connected with a heat preservation water tank (12) through a water pump (11) and a pipeline (5), a second valve (13) is installed at a water outlet of the heat preservation water tank (12), and a second heat exchange tube (8) and the second heat exchange tube (8) penetrate through the baffle (7) are detachably installed on the inner side wall of the water chamber (14), the smoke outlet of the smoke chamber (4) is connected with a processing box (9) through a pipeline (5).

2. The flue gas waste heat recovery device of the gas wall-mounted boiler according to claim 1, characterized in that: handle case (9) inside wall one side and install grid (28), handle case (9) inside wall opposite side and install filter screen case (26), filter screen case (26) inside packing has active carbon (27), it constitutes first filter chamber (19) to handle between case (9) inside wall and grid (28), constitute second filter chamber (20) between grid (28) and filter screen case (26).

3. The flue gas waste heat recovery device of the gas wall-mounted boiler according to claim 2, characterized in that: first waste discharge port (21) have been seted up to first filter chamber (19) bottom, second waste discharge port (22) have been seted up to second filter chamber (20) bottom, first waste discharge port (21) and second waste discharge port (22) all can be dismantled and be connected with sealed lid (25).

4. The flue gas waste heat recovery device of the gas wall-mounted boiler according to claim 2, characterized in that: a feed inlet (24) is formed in the top of the filtering net box (26), a discharge hole (23) is formed in the bottom of the filtering net box (26), and both the feed inlet (24) and the discharge hole (23) can be detachably connected with a sealing cover (25).

5. The flue gas waste heat recovery device of the gas wall-mounted boiler according to claim 1, characterized in that: the heat exchanger is characterized in that mounting rings (15) are welded in the middle of the first heat exchange tube (6) and the second heat exchange tube (8), screw holes (17) are formed in the surfaces of the mounting rings (15), and the mounting rings are detachably connected with the baffle (7) through the screw holes (17), bolts (16) and nuts (18).

6. The flue gas waste heat recovery device of the gas wall-mounted boiler according to claim 1, characterized in that: the smoke inlet of smoke chamber (4) is connected with the exhaust port of gas hanging stove through pipeline (5), the exhaust port of handling case (9) is connected with the chimney through pipeline (5), the gas vent of gas package (1) is connected with the combustion chamber of gas hanging stove through pipeline (5) and valve.