CN215808587U

CN215808587U - Hot water boiler exhaust gas processing apparatus

Info

Publication number: CN215808587U
Application number: CN202122304807.2U
Authority: CN
Inventors: 赵永新; 张超; 王康; 张坤朋; 王文明; 刘振伟
Original assignee: Henan Hanneng Thermal Equipment Co ltd
Current assignee: Henan Hanneng Thermal Equipment Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-11
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a hot water boiler exhaust gas treatment device, which comprises a waste heat recovery device and a dust treatment device which are arranged at the top end of a boiler, wherein the waste heat recovery device comprises a condensation box and a condensation pipe arranged in the condensation box; the dust treatment device comprises a dust collection box, a filter screen is embedded in the dust collection box, the filter screen divides an inner cavity of the dust collection box into a first cavity and a second cavity which are positioned on the left side and the right side of the filter screen, the first cavity is communicated with the condensation box through a first communicating pipe, and a second communicating pipe communicated with the first cavity is arranged on the side wall of the second cavity; the dust collection box is also provided with an anti-blocking device for preventing the filter screen from being blocked. According to the utility model, the utilization rate of the waste heat of the boiler can be increased through the arranged condensing box and the condensing pipe, and the dust in the flue gas can be filtered through the arranged dust collecting box and the filter screen, so that the environment is protected.

Description

Hot water boiler exhaust gas processing apparatus

Technical Field

The utility model relates to the field of hot water boilers, in particular to a device for treating exhaust gas of a hot water boiler.

Background

A boiler is a widely used equipment in industry and life. Most of the existing common hot water boilers adopt fuels such as burning coal briquettes, coke, pulverized coal and the like to obtain energy, and the boilers generally have the following defects: the boiler has large volume and high manufacturing cost, the heat energy released after combustion in the boiler can not be fully utilized, a large amount of solid dust and high-temperature gas generated after fuel combustion are directly discharged into the air through a chimney, the exhaust gas temperature reaches 300-400 ℃, the heat loss is large, the heat efficiency is low, the emission of smoke dust and the like has great pollution to the environment, and the resource waste is serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for treating exhaust gas of a hot water boiler, which aims to solve the problems of large heat loss, low heat efficiency, large environmental pollution caused by smoke and dust and the like and serious resource waste of the existing boiler.

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

a hot water boiler exhaust gas treatment device comprises a waste heat recovery device and a dust treatment device which are arranged at the top end of a boiler, wherein the waste heat recovery device comprises a condensation box and a condensation pipe arranged in the condensation box, the condensation box is communicated with a smoke exhaust pipe of the boiler, and a water inlet of the condensation pipe penetrates out of the condensation box from the top end of the condensation box; the dust treatment device comprises a dust collection box, a filter screen is embedded in the dust collection box, the filter screen divides an inner cavity of the dust collection box into a first cavity and a second cavity which are positioned on the left side and the right side of the filter screen, the first cavity is communicated with the condensation box through a first communicating pipe, and a second communicating pipe communicated with the first cavity is arranged on the side wall of the second cavity; the dust collection box is also provided with an anti-blocking device for preventing the filter screen from being blocked.

Preferably, prevent stifled device includes the scraper blade, the scraper blade is located in the first cavity, just the scraper blade sets up the surface of filter screen, its with filter screen sliding connection, prevent stifled device still including driving the scraper blade is followed the actuating mechanism of the direction of height removal of filter screen.

Preferably, the driving mechanism comprises an air cylinder, the air cylinder is arranged at the top end of the dust collection box, and a piston rod of the air cylinder penetrates through a top shell of the dust collection box and is connected with the scraper.

Preferably, a doorway is formed at one end of the dust collection box in the width direction in a penetrating manner, and a sealing door for opening and closing the doorway is arranged at the doorway.

Preferably, the top of boiler still is provided with the gas removal equipment, the gas removal equipment includes the degassing tank, the degassing tank passes through the second communicating pipe with the second cavity intercommunication, the degassing tank holds sodium hydroxide solution, just the top of degassing tank is provided with the outlet duct rather than the inner chamber intercommunication.

Preferably, a sealing cover is arranged at the air outlet of the air outlet pipe, and the sealing cover is detachably connected with the air outlet pipe.

Preferably, a mounting hole is formed in one end of the sealing cover, an internal thread is arranged on the inner wall of the mounting hole, and an external thread matched with the internal thread is arranged on the outer wall of the air outlet pipe.

Preferably, the side wall of the condensation pipe is sleeved with a plurality of fins.

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

1. according to the utility model, the utilization rate of the waste heat of the boiler can be increased through the arranged condensation box and the condensation pipe, dust in the flue gas can be filtered through the arranged dust collection box and the filter screen, so that the environment is protected, and the blockage of the filter screen can be prevented through the arranged blockage prevention device, so that the fluidity of the flue gas is improved.

2. The anti-blocking device specifically comprises the scraper which is positioned on the surface of the filter screen, and the driving mechanism can drive the scraper to scrape off the smoke dust on the surface of the filter screen so as to reduce the probability of blocking the filter screen.

3. According to the utility model, the driving mechanism is specifically the air cylinder, and the air cylinder drives the scraper to move, so that the labor is saved compared with the manual movement of the scraper.

4. According to the dust collection box, the door is arranged at one end of the dust collection box, the sealing door is arranged at the door, the first threaded hole can be arranged on the sealing door in a penetrating mode, the second threaded hole is arranged at the door end of the door, and the door body can be mounted and dismounted through the bolts matched with the first threaded hole and the second threaded hole.

5. According to the utility model, the degassing tank, the second communicating pipe and the gas outlet pipe are arranged, the sodium hydroxide solution is arranged in the degassing tank, the flue gas filtered by the filter screen enters the degassing tank through the second communicating pipe and reacts with the sodium hydroxide solution in the degassing tank to remove nitrogen dioxide in the flue gas, and finally the purified flue gas is discharged from the gas outlet pipe.

6. In the utility model, the water vapor exists in the air, namely when the hot water boiler is not used, the water vapor enters the degassing tank through the air outlet pipe and dilutes the sodium hydroxide solution, so that the concentration of the sodium hydroxide solution is reduced, and the degassing efficiency of the degassing tank is reduced.

7. According to the utility model, the sealing cover is provided with the mounting hole, the mounting hole is internally provided with the internal thread, and the outer wall of the air outlet pipe is provided with the external thread.

8. According to the utility model, the plurality of fins are arranged on the outer wall of the condensation pipe, and the arrangement of the fins increases the surface area of the condensation pipe, so that the contact area of flue gas and the condensation pipe is increased, and the heat exchange efficiency is improved.

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 sectional perspective view of the dust bin of the present invention;

FIG. 4 is a schematic perspective view of the present invention after cutting the case;

FIG. 5 is a schematic perspective view of a condenser tube according to the present invention;

in the figure, 100-boiler, 110-combustion chamber, 120-fan, 130-burner, 140-smoke exhaust pipe, 200-condensation box, 220-condensation pipe, 221-fin, 230-first communicating pipe, 300-dust box, 310-cylinder, 311-piston rod, 312-scraper, 320-second communicating pipe, 330-first cavity, 340-second cavity, 350-filter screen, 360-sealing door, 400-degassing box, 410-gas outlet pipe, 411-external thread, 420-sealing cover, 421-mounting hole and 422-internal thread.

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. 1-3, the present embodiment provides a device for processing exhaust gas of a hot water boiler 100, which includes a waste heat recovery device and a dust treatment device disposed at the top end of the boiler 100, wherein the waste heat recovery device includes a condensation box 200 and a condensation pipe 220 disposed in the condensation box 200, the condensation box 200 is communicated with a smoke exhaust pipe 140 of the boiler 100, and a water inlet of the condensation pipe 220 penetrates out of the condensation box 200 from the top end of the condensation box 200; the dust treatment device comprises a dust collection box 300, a filter screen 350 is embedded in the dust collection box 300, the filter screen 350 divides the inner cavity of the dust collection box 300 into a first cavity 330 and a second cavity 340 which are positioned at the left side and the right side of the filter screen 350, the first cavity 330 is communicated with the condensation box 200 through a first communicating pipe 230, and a second communicating pipe 320 communicated with the second cavity 340 is arranged on the side wall of the second cavity 340; the dust box 300 is further provided with an anti-blocking device for preventing the filter screen 350 from being blocked.

In this embodiment, in the prior art, a combustion chamber 110 is disposed in an inner cavity of the boiler 100, the combustion chamber 110 is communicated with a smoke exhaust pipe 140, a burner 130 is disposed at one end of the combustion chamber 110, a fan 120 is disposed at one end of the burner 130, the fan 120 can blow oxygen in air into the combustion chamber 110, so as to increase combustion efficiency, and a water inlet pipe for feeding water and a water outlet pipe for discharging water are disposed on a side wall of the boiler 100.

The working principle of the embodiment is as follows: firstly, the staff adds the coal briquette into the combustion chamber 110 through the inlet tube, then injects cold water into the condenser pipe 220 through the water inlet, then starts the burner 130 and the fan in turn, the burner 130 ignites the coal briquette in the combustion chamber 110, the high temperature flue gas generated by the burning of the coal briquette enters the condenser box 200 through the smoke exhaust pipe 140, and the flue gas contacts with the surface of the condenser pipe 220, and transfers the heat to the cold water in the condenser pipe 220, thereby realizing the recovery of the heat energy, the first communicating pipe 230 through which the cooled flue gas passes enters the first cavity 330 of the dust collection box 300, and the flue gas passes through the filter screen 350 and then enters the second cavity 340, and finally is discharged from the second communicating pipe 320.

In this embodiment, can increase the utilization ratio of boiler 100 waste heat through the condensing box 200 and the condenser pipe 220 that set up, through dust collection box 300 and the filter screen 350 that sets up, can filter the dust in the flue gas, protected the environment, and can prevent through the stifled device that prevents that sets up in this embodiment that filter screen 350 from blockking up, improved the mobility of flue gas.

Example 2

As shown in fig. 2 to 3, this embodiment is substantially the same as the above embodiments, except that the anti-blocking device includes a scraper 312, the scraper 312 is located in the first cavity 330, the scraper 312 is disposed on the surface of the filter screen 350 and is slidably connected to the filter screen 350, and the anti-blocking device further includes a driving mechanism capable of driving the scraper 312 to move along the height direction of the filter screen 350.

In this embodiment, the anti-blocking device specifically includes the scraper 312, and the scraper 312 is located the surface of the filter screen 350, and can drive the scraper 312 to scrape off the smoke and dust on the surface of the filter screen 350 through the driving mechanism that is arranged, so as to reduce the probability of blocking the filter screen 350.

Example 3

The present embodiment is substantially the same as the above-described embodiments as shown in fig. 2 to 3, except that the driving mechanism includes a cylinder 310, the cylinder 310 is disposed at the top end of the dust box 300, and a piston rod 311 of the cylinder 310 is connected to the scraper 312 through the top case of the dust box 300.

The motive mechanism of the embodiment is specifically the air cylinder 310, and the air cylinder 310 drives the scraper 312 to move, so that compared with the manual movement of the scraper 312, the labor is saved.

Example 4

As shown in fig. 1 to 3, the present embodiment is substantially the same as the above embodiments except that a doorway is penetratingly provided at one end of the dust box 300 in a width direction thereof, and a sealing door 360 for opening and closing the doorway is provided at the doorway.

In this embodiment, be provided with the gate in the one end of dust collection box 300, gate department is provided with sealing door 360, in this embodiment, can run through on sealing door 360 and set up first screw hole, and set up the second screw hole in the door end department on gate to bolt through with first screw hole, second screw hole adaptation is in order to realize the installation and the dismantlement of the door body, to sum up, the door body that can the switching makes things convenient for the staff to clear up the smoke and dust in the dust collection box 300.

Example 5

As shown in fig. 1, 2 and 4, the present embodiment is substantially the same as the above embodiments, except that a degassing device is further disposed at the top end of the boiler 100, the degassing device includes a degassing tank 400, the degassing tank 400 is communicated with the second cavity 340 through the second communicating pipe 320, a sodium hydroxide solution is contained in the degassing tank 400, and an air outlet pipe 410 communicated with an inner cavity of the degassing tank 400 is disposed at the top end of the degassing tank 400.

In this embodiment, the degassing tank 400, the second communicating pipe 320 and the gas outlet pipe 410 are provided, a sodium hydroxide solution is provided in the degassing tank 400, the flue gas filtered by the filter screen 350 enters the degassing tank 400 through the second communicating pipe 320, and reacts with the sodium hydroxide solution in the degassing tank 400 to remove nitrogen dioxide in the flue gas, and finally the purified flue gas is discharged from the gas outlet pipe 410.

Example 6

As shown in fig. 4, this embodiment is substantially the same as the above embodiments, except that a sealing cover 420 is disposed at an air outlet of the air outlet pipe 410, and the sealing cover 420 is detachably connected to the air outlet pipe 410.

In this embodiment, it should be noted that, because there is steam in the air, that is, when the hot water boiler 100 is not used, the steam enters the degassing tank 400 through the air outlet pipe 410 and dilutes the sodium hydroxide solution, so that the concentration of the sodium hydroxide solution is reduced, and the degassing efficiency of the degassing tank 400 is reduced, the sealing cover 420 provided in the utility model can prevent the steam from entering the degassing tank 400, and the sealing cover 420 and the air outlet pipe 410 are detachably connected, so that when the boiler 100 is used, a worker can remove the sealing cover 420 from the air outlet pipe 410.

Example 7

As shown in fig. 4, this embodiment is substantially the same as the above embodiments, except that a mounting hole 421 is opened at one end of the sealing cover 420, an internal thread 422 is provided on an inner wall of the mounting hole 421, and an external thread 411 matched with the internal thread 422 is provided on an outer wall of the air outlet pipe 410.

In this embodiment, the sealing cover 420 is provided with the mounting hole 421, the mounting hole 421 is internally provided with the internal thread 422, and the outer wall of the air outlet pipe 410 is provided with the external thread 411, so that the sealing cover 420 and the air outlet pipe 410 can be detachably connected in a threaded connection manner, and the sealing cover is convenient and quick.

Example 8

As shown in fig. 5, the present embodiment is substantially the same as the above embodiments, except that a plurality of fins 221 are sleeved on the side wall of the condensation tube 220.

In this embodiment, be provided with a plurality of fins 221 on the outer wall of condenser pipe 220, the surface area of condenser pipe 220 has been increased in the setting of fin 221 for the area of contact of flue gas and condenser pipe 220 increases, has improved heat exchange efficiency.

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

1. A kind of hot water boiler discharges the gas processing unit, characterized by that: the waste heat recovery device comprises a waste heat recovery device and a dust treatment device which are arranged at the top end of a boiler (100), wherein the waste heat recovery device comprises a condensation box (200) and a condensation pipe (220) arranged in the condensation box (200), the condensation box (200) is communicated with a smoke exhaust pipe (140) of the boiler (100), and a water inlet (210) of the condensation pipe (220) penetrates out of the condensation box (200) from the top end of the condensation box (200);

the dust treatment device comprises a dust collection box (300), a filter screen (350) is embedded in the dust collection box (300), the filter screen (350) divides an inner cavity of the dust collection box (300) into a first cavity (330) and a second cavity (340) which are positioned at the left side and the right side of the filter screen (350), the first cavity (330) is communicated with the condensation box (200) through a first communicating pipe (230), and a second communicating pipe (320) communicated with the second cavity (340) is arranged on the side wall of the second cavity;

the dust collection box (300) is also provided with an anti-blocking device for preventing the filter screen (350) from being blocked.

2. A hot water boiler discharge gas treatment device according to claim 1, wherein said anti-blocking device comprises a scraper (312), said scraper (312) is located in said first cavity (330), and said scraper (312) is disposed on the surface of said filter screen (350) and is slidably connected to said filter screen (350), said anti-blocking device further comprises a driving mechanism for driving said scraper (312) to move along the height direction of said filter screen (350).

3. A hot water boiler exhaust gas treatment device according to claim 2, wherein said driving mechanism comprises a cylinder (310), said cylinder (310) is disposed at the top end of said dust box (300), and a piston rod (311) of said cylinder (310) is connected to said scraper (312) through the top housing of said dust box (300).

4. A hot water boiler exhaust gas treatment device according to claim 3, wherein a gate is penetratingly provided at one end of the dust box (300) in a width direction thereof, and a sealing door (360) for opening and closing the gate is provided at the gate.

5. A hot water boiler exhaust gas treatment device according to claim 4, characterized in that the top end of the boiler (100) is further provided with a degassing device, the degassing device comprises a degassing tank (400), the degassing tank (400) is communicated with the second cavity (340) through the second communicating pipe (320), the degassing tank (400) contains sodium hydroxide solution, and the top end of the degassing tank (400) is provided with an air outlet pipe (410) communicated with the inner cavity thereof.

6. A hot water boiler discharge gas treatment apparatus according to claim 5, wherein a sealing cover (420) is provided at an outlet of said outlet pipe (410), said sealing cover (420) being detachably connected to said outlet pipe (410).

7. The hot water boiler discharge gas treatment apparatus according to claim 6, wherein a mounting hole (421) is opened at one end of the sealing cover (420), an internal thread (422) is provided on an inner wall of the mounting hole (421), and an external thread (411) engaged with the internal thread (422) is provided on an outer wall of the outlet pipe (410).

8. A hot water boiler discharge gas treatment apparatus according to claim 1, wherein a plurality of fins (221) are provided on the side wall of said condensation duct (220).