CN215809286U - Low-nitrogen condensation hot water boiler - Google Patents

Abstract

The utility model discloses a low-nitrogen condensation hot water boiler, which comprises a boiler body, wherein a furnace chamber is arranged in the boiler body, a combustion furnace liner is arranged at the bottom of the furnace chamber, a burner is arranged at one end of the combustion furnace liner, a smoke exhaust pipe is arranged at the other end of the combustion furnace liner, one end of the smoke exhaust pipe is communicated with the combustion furnace liner, and the other end of the smoke exhaust pipe penetrates out of the boiler body; the top end of the boiler body is provided with a water tank, the top end of the water tank is provided with a water injection pipe communicated with the inner cavity of the water tank, the shell of the water tank is provided with a cavity, and the cavity is communicated with one end of the smoke exhaust pipe penetrating out of the boiler body; the top of boiler body still is provided with except that the waste gas case, removes the waste gas case and passes through communicating pipe and cavity intercommunication, and the top of removing the waste gas case still is provided with the outlet duct, the bottom of outlet duct and the inner chamber intercommunication that removes the waste gas case. In conclusion, the hot water boiler body improves the utilization rate of fuel heat during heating and improves the emission reduction effect of the hot water boiler body.

Description

Low-nitrogen condensation hot water boiler

Technical Field

The utility model relates to the field of hot water boilers, in particular to a low-nitrogen condensation hot water boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy.

However, the existing condensing normal pressure hot water boiler body still has some disadvantages, firstly, the traditional hot water boiler body burns the generated nitride during the combustion process of the fuel: NO and NO2, collectively called as NOx, the state requires the nitride emission to be 30mg/L, but the nitride emission of the conventional vacuum hot water boiler body is about 80mg/L, and a large amount of nitride is emitted to the atmosphere, which causes serious pollution to the air.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-nitrogen condensation hot water boiler, which aims to solve the problems that heat in flue gas of the existing boiler is usually directly discharged into the atmosphere along with the flue gas, the heat cannot be reasonably secondarily utilized, a large amount of fuel is consumed when a hot water boiler body is heated, and the energy-saving and emission-reducing effects of the hot water boiler body are reduced.

The purpose of the utility model is realized by the following technical scheme:

a low-nitrogen condensation hot water boiler comprises a boiler body, wherein a furnace chamber is arranged inside the boiler body, a combustion furnace pipe is arranged at the bottom of the furnace chamber, a burner is arranged at one end of the combustion furnace pipe, a smoke exhaust pipe is arranged at the other end of the combustion furnace pipe, one end of the smoke exhaust pipe is communicated with the combustion furnace pipe, and the other end of the smoke exhaust pipe penetrates out of the boiler body; the top end of the boiler body is provided with a water tank, the top end of the water tank is provided with a water injection pipe communicated with an inner cavity of the water tank, a cavity is arranged on a shell of the water tank, and the cavity is communicated with one end of the smoke exhaust pipe penetrating out of the boiler body; the top of boiler body still is provided with except that the waste gas case, remove the waste gas case through communicating pipe with the cavity intercommunication, the top of removing the waste gas case still is provided with the outlet duct, the bottom of outlet duct and the inner chamber intercommunication that removes the waste gas case.

Preferably, the waste gas removing box is filled with sodium hydroxide solution.

Preferably, the bottom of water tank still is provided with the drain pipe, the one end of drain pipe with the water tank intercommunication, its other end with the inner chamber intercommunication of boiler body, just it is equipped with the valve to inlay in the inner chamber of drain pipe, be provided with on the drain pipe and be used for the switching device of switching the valve.

Preferably, the opening and closing device comprises a rotating shaft, one end of the rotating shaft is connected with the side wall of the valve, and the other end of the rotating shaft penetrates out of the drain pipe and is rotatably connected with the shell of the drain pipe.

Preferably, the rotating shaft penetrates through a first insertion hole along the diameter direction of the rotating shaft, a second insertion hole is formed in the top end of the boiler body, and the rotating shaft can be fixed through a bolt inserted into the first insertion hole and the second insertion hole.

Preferably, the lateral wall of the boiler body is respectively provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe is provided with a water pump.

Preferably, the top end of the air outlet pipe is provided with a sealing plate, and the sealing plate is detachably connected with the air outlet pipe.

Preferably, the bottom of closing plate is provided with the second bolt, the top of outlet duct be provided with the third jack of second bolt adaptation, just the closing plate pass through the cooperation of second bolt and third jack, with the connection can be dismantled to the outlet duct.

The utility model has at least one of the following advantages:

1. in the utility model, a water tank is arranged at the top end of a boiler body, a water injection pipe is arranged at the top end of the water tank, a cavity is arranged on the shell of the water tank, and the cavity is communicated with the smoke exhaust pipe, the utility model is also provided with a waste gas removing box, the top end of the waste gas removing box is provided with an air outlet pipe, and the waste gas removing box is communicated with the cavity through a communicating pipe, when the water in the boiler body needs to be heated, a worker firstly injects water sources into the water tank and the boiler, then the burner is started, the burner burns the combustion objects in the combustion furnace liner, the smoke generated by combustion enters the cavity of the shell of the water tank along with the smoke exhaust pipe, and the smoke can heat the water source in the inner cavity of the water tank through heat transfer, then the flue gas enters the waste gas removing box along with the flowing of the air to remove the waste gas, and finally the flue gas is discharged into the air through the air outlet pipe. In conclusion, the hot water boiler body improves the utilization rate of fuel heat during heating and improves the emission reduction effect of the hot water boiler body.

2. In the utility model, the sodium hydroxide solution is injected into the waste gas removing box, and it should be noted that the waste gas in the flue gas is mainly nitrogen dioxide gas, and the nitrogen dioxide can react with the sodium hydroxide solution, so as to achieve the effect of purifying the flue gas.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional perspective view of the present invention;

FIG. 3 is a schematic perspective view of the drain pipe of the present invention with the valve closed;

FIG. 4 is a schematic cross-sectional perspective view of FIG. 3;

FIG. 5 is a schematic perspective view of the drain pipe of the present invention with the valve open;

FIG. 6 is a schematic perspective view of the outlet tube and the sealing plate of the present invention;

in the figure, 100-boiler body, 110-burner, 120-combustion furnace, 130-smoke exhaust pipe, 140-water inlet pipe, 150-water pump, 160-water outlet pipe, 170-second jack, 180-furnace chamber, 200-water tank, 210-cavity, 220-water injection pipe, 230-water discharge pipe, 231-valve, 232-rotating shaft, 233-first jack, 234-plug pin, 250-communicating pipe, 300-waste gas removal tank, 310-gas outlet pipe, 311-third jack, 320-sealing plate, and 321-second plug pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Example 1

As shown in fig. 1-2, the present embodiment provides a low-nitrogen condensation hot water boiler, which includes a boiler body 100, a furnace chamber 180 is disposed inside the boiler body 100, a combustion furnace 120 is disposed at the bottom of the furnace chamber 180, a burner is disposed at one end of the combustion furnace 120, a smoke exhaust pipe 130 is disposed at the other end of the combustion furnace 120, one end of the smoke exhaust pipe 130 is communicated with the combustion furnace 120, and the other end of the smoke exhaust pipe penetrates out of the boiler body 100; the top end of the boiler body 100 is provided with a water tank 200, the top end of the water tank 200 is provided with a water injection pipe 220 communicated with the inner cavity of the water tank 200, the shell of the water tank 200 is provided with a cavity 210, and the cavity 210 is communicated with one end of the smoke exhaust pipe 130 penetrating out of the boiler body 100; the top of the boiler body 100 is further provided with a waste gas removing box 300, the waste gas removing box 300 is communicated with the cavity 210 through a communicating pipe 250, the top of the waste gas removing box 300 is further provided with an air outlet pipe 310, and the bottom of the air outlet pipe 310 is communicated with the inner cavity of the waste gas removing box 300.

In this embodiment, a water tank 200 is disposed at the top end of a boiler body 100, a water injection pipe 220 is disposed at the top end of the water tank 200, a cavity 210 is disposed on the outer shell of the water tank 200, and the cavity 210 is communicated with a smoke exhaust pipe 130, a waste gas removing tank 300 is further disposed, an air outlet pipe 310 is disposed at the top end of the waste gas removing tank 300, and the waste gas removing tank 300 is communicated with the cavity 210 through a communication pipe 250, when water in the boiler body 100 needs to be heated, a worker firstly injects a water source into the water tank 200 and the boiler, then starts a burner 110, the burner 110 burns a combustion product in a combustion liner 120, flue gas generated by combustion enters the cavity 210 of the outer shell of the water tank 200 along with the smoke exhaust pipe 130, and the flue gas can heat the water source in the inner cavity of the water tank 200 through heat transfer, and then enters the waste gas removing tank 300 along with the flow of air to remove waste gas, and finally discharged into the air through the outlet pipe 310. In summary, the hot water boiler body 100 of the present invention improves the utilization rate of the fuel heat when heating, and improves the effect of emission reduction of the hot water boiler body 100.

Example 2

As shown in fig. 2, this embodiment is substantially the same as the above embodiment except that a sodium hydroxide solution is injected into the waste gas removing tank 300.

In this embodiment, except that the waste gas tank 300 is filled with the sodium hydroxide solution, it should be noted that, the waste gas in the flue gas is mainly nitrogen dioxide gas, and nitrogen dioxide can react with the sodium hydroxide solution, so as to achieve the effect of purifying the flue gas.

Example 3

As shown in fig. 1-2, this embodiment is substantially the same as the above embodiments, except that a drain pipe 230 is further disposed at the bottom end of the water tank 200, one end of the drain pipe 230 is communicated with the water tank 200, the other end of the drain pipe is communicated with the inner cavity of the boiler body 100, a valve 231 is embedded in the inner cavity of the drain pipe 230, and an opening and closing device for opening and closing the valve 231 is disposed on the drain pipe 230.

In the middle of this embodiment, be provided with drain pipe 230 in the bottom of water tank 200, drain pipe 230 and boiler body 100 communicate and be provided with valve 231 and the closing device who is used for opening and closing valve 231 on drain pipe 230, in the middle of this embodiment, after the heat transfer that water passes through the flue gas in the middle of water tank 200 reached the uniform temperature, staff's accessible closing device opens valve 231, valve 231 opens the back, hot water enters into boiler body 100's inner chamber through drain pipe 230, and mix with the water in boiler body 100, make things convenient for the centralized processing of staff to the water source, then staff's rethread closing device valve 231, and pour into new water source in the middle of to water tank 200 again, waste heat with this constantly using the flue gas heats cold water, the thermal utilization ratio of flue gas has been improved.

Example 4

As shown in fig. 3 to 5, this embodiment is substantially the same as the above embodiments, except that the opening and closing device includes a rotating shaft 232, one end of the rotating shaft 232 is connected to the side wall of the valve 231, and the other end of the rotating shaft 232 penetrates out of the drain pipe 230 and is rotatably connected to the housing of the drain pipe 230.

In this embodiment, the opening and closing device includes a rotating shaft 232, and by rotating the rotating shaft 232, the valve 231 can rotate along with the rotating shaft 232 to open and seal the water discharge pipe 230.

Example 5

As shown in fig. 3 to 5, the present embodiment is substantially the same as the above embodiments except that the rotation shaft 232 is provided with a first insertion hole 233 penetrating along a diameter direction thereof, the top end of the boiler body 100 is provided with a second insertion hole 170, and the rotation shaft 232 can be fixed by a latch 234 inserted into the first insertion hole 233 and the second insertion hole 170.

In this embodiment, for the relatively loose rotating shaft 232, the situation that the valve 231 is automatically opened may occur, so the rotating shaft 232 of this embodiment is provided with the first insertion hole 233 in a penetrating manner, the top end of the boiler body 100 is provided with the second insertion hole 170, when the valve 231 is required to seal the water discharge pipe 230, only the plug 234 needs to be inserted into the first insertion hole 233 and the second insertion hole 170, so that the rotating shaft 232 can be prevented from automatically rotating, when the valve 231 needs to be opened, the plug 234 is taken out, and the rotating shaft 232 is rotated by a worker.

Example 6

As shown in fig. 1-2, the present embodiment is substantially the same as the above embodiments, except that a water inlet pipe 140 and a water outlet pipe 160 are respectively disposed on the side walls of the boiler body 100, and a water pump 150 is disposed on the water inlet pipe 140.

In this embodiment, the boiler body 100 is provided with the water inlet pipe 140 and the water outlet pipe 160 to implement water injection and drainage, the water inlet pipe 140 is further provided with the water pump 150 for pumping water, and it should be noted that the water outlet pipe 160 is similar to a household faucet structure, and the water outlet pipe 160 can be opened and closed.

Example 7

As shown in fig. 3 to 5, this embodiment is substantially the same as the above embodiments, except that a sealing plate 320 is disposed at the top end of the outlet pipe 310, and the sealing plate 320 is detachably connected to the outlet pipe 310.

In this embodiment, it should be noted that, because the outlet pipe 310 is arranged on the waste gas removing box 300, because the top end of the outlet pipe 310 is open, when the boiler body 100 does not work, other gases such as water vapor in the air can enter the waste gas removing box 300 through the outlet pipe 310, and dilute the sodium hydroxide solution in the waste gas removing box 300, thereby reducing the work efficiency of the waste gas removing box 300, therefore, in this embodiment, the sealing plate 320 is arranged to prevent other gases in the air from entering the waste gas removing box 300, that is, when the boiler body 100 works, an operator can open the sealing plate 320, when the boiler body 100 does not work, the operator can use the sealing plate 320 to realize the sealing of the outlet pipe 310.

Example 8

As shown in fig. 6, this embodiment is substantially the same as the above embodiments, except that a second plug 321 is disposed at the bottom end of the sealing plate 320, a third insertion hole 311 adapted to the second plug 321 is disposed at the top end of the outlet pipe 310, and the sealing plate 320 is detachably connected to the outlet pipe 310 through the cooperation of the second plug 321234 and the third insertion hole 311.

In this embodiment, when the sealing plate 320 needs to be mounted on the outlet pipe 310, the second pin 321 of the sealing plate 320 only needs to be inserted into the third insertion hole 311 of the outlet pipe 310.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims (8)

1. The low-nitrogen condensation hot water boiler is characterized by comprising a boiler body (100), wherein a furnace chamber (180) is arranged inside the boiler body (100), a combustion furnace pipe (120) is arranged at the bottom of the furnace chamber (180), a burner (110) is arranged at one end of the combustion furnace pipe (120), a smoke exhaust pipe (130) is arranged at the other end of the combustion furnace pipe (120), one end of the smoke exhaust pipe (130) is communicated with the combustion furnace pipe (120), and the other end of the smoke exhaust pipe penetrates out of the boiler body (100);

a water tank (200) is arranged at the top end of the boiler body (100), a water injection pipe (220) communicated with the inner cavity of the water tank (200) is arranged at the top end of the water tank (200), a cavity (210) is arranged on the shell of the water tank (200), and the cavity (210) is communicated with one end, penetrating out of the boiler body (100), of the smoke exhaust pipe (130);

the top of boiler body (100) still is provided with except that waste gas case (300), remove waste gas case (300) through communicating pipe (250) with cavity (210) intercommunication, the top of removing waste gas case (300) still is provided with outlet duct (310), the bottom of outlet duct (310) with remove the inner chamber intercommunication of waste gas case (300).

2. A low nitrogen condensing hot water boiler according to claim 1, wherein said waste gas removing tank (300) is filled with sodium hydroxide solution.

3. A low-nitrogen condensing hot water boiler according to claim 2, wherein a drain pipe (230) is further provided at a bottom end of the water tank (200), one end of the drain pipe (230) is communicated with the water tank (200), the other end thereof is communicated with the inner cavity of the boiler body (100), a valve (231) is embedded in the inner cavity of the drain pipe (230), and an opening and closing device for opening and closing the valve (231) is provided on the drain pipe (230).

4. A low nitrogen condensing hot water boiler according to claim 3, wherein said opening and closing means comprises a rotary shaft (232), one end of said rotary shaft (232) is connected to a side wall of said valve (231), and the other end of said rotary shaft (232) is extended out of said water discharge pipe (230) and is rotatably connected to a housing of said water discharge pipe (230).

5. A low-nitrogen condensing hot water boiler according to claim 4, wherein said rotary shaft (232) is provided with a first insertion hole (233) penetrating in a diameter direction thereof, and a second insertion hole (170) is provided at a top end of said boiler body (100), and said rotary shaft (232) is fixed by a pin (234) inserted into said first insertion hole (233) and said second insertion hole (170).

6. A low-nitrogen condensing hot water boiler according to claim 4, characterized in that the side walls of said boiler body (100) are provided with a water inlet pipe (140) and a water outlet pipe (160), respectively, and said water inlet pipe (140) is provided with a water pump (150).

7. A low-nitrogen condensing hot water boiler according to claim 1, wherein a sealing plate (320) is provided on the top end of said outlet pipe (310), and said sealing plate (320) is detachably connected to said outlet pipe (310).

8. A low-nitrogen condensing hot water boiler according to claim 7, wherein the bottom end of said sealing plate (320) is provided with a second pin (321), the top end of said outlet pipe (310) is provided with a third socket (311) fitted with said second pin (321), and said sealing plate (320) is detachably connected to said outlet pipe (310) by the engagement of said second pin (321) and said third socket (311).

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