CN211178022U - Smoke tower suitable for waste incineration power plant - Google Patents

Abstract

The utility model discloses a tobacco tower suitable for msw incineration power plant, this tobacco tower includes: the wet-hot air recycling device comprises a smoke tower body, wherein the smoke tower body comprises an air inlet layer, a packing layer, a water collecting layer and a smoke exhaust layer from bottom to top, the water collecting layer comprises a cooling water spray head, a water collector and an exhaust fan from bottom to top, the water collecting layer is used for recovering moisture in wet-hot air, the exhaust fan is used for extracting natural air from bottom to top, the smoke exhaust layer comprises a throat pipe and a smoke outlet from bottom to top, and the smoke exhaust layer is used for exhausting smoke conveyed to the smoke exhaust layer; the smoke inlet pipeline is communicated with the smoke exhaust layer and used for conveying smoke to the smoke tower body. This tobacco tower unites two into one mechanical draft cooling tower and chimney, and the effort of lifting power, the power of lifting of damp and hot steam and the effort of air exhauster of make full use of flue gas self lifts the flue gas to higher height, reduces the pollutant and falls to the ground concentration to reduce the height of building, thereby save the construction cost of rubbish power plant.

Description

Smoke tower suitable for waste incineration power plant

Technical Field

The utility model belongs to the technical field of the chemical industry, particularly, the utility model relates to a cigarette tower suitable for msw incineration power plant.

Background

With the increasingly prominent problem of the 'garbage enclosing city', more and more cities begin to build garbage incineration power plants, but the existence of civil and military airports and navigation channels causes great trouble to the site selection of the garbage incineration power plants. The chimney of the waste incineration power plant is generally 80 meters high, and the cooling tower is less than 60 meters at most, so that the cooling tower is adopted to replace the chimney for smoke discharge, the chimney investment can be saved, the building height can be reduced, and the requirement of local height limit is met.

The introduction of flue gas into a cooling tower for emission has been widely used in large thermal power plants, but there are few applications in waste incineration plants because: 1. the circulating cooling water volume of the thermal power plant is large, and the thermal power plant is suitable for a large hyperbolic natural ventilation hyperbolic cooling tower, so that a smoke tower device is suitable for building, the waste incineration power plant has a large number of small incinerators for daily treatment of 300t/d and 400t/d, the cooling of the circulating water is mainly carried out by a mechanical ventilation cooling tower, and the experience of building the smoke tower and the smoke tower into one on the basis of the small mechanical ventilation cooling tower does not exist at present; 2. the flue gas components of the thermal power plant have low corrosivity and the exhaust temperature is low, and the glass fiber reinforced plastics are directly used as the smoke pipes, but the flue gas components of the waste incineration power plant are complex, have high corrosivity and high exhaust temperature, and have large influence on circulating water and a smoke inlet pipeline; 3. the difference between a smoke tower of a thermal power plant and a conventional cooling tower is not large, but if the smoke tower of the thermal power plant is moved into a waste incineration power plant (smoke is directly introduced into the cooling tower), the smoke lifting force is insufficient, the concentration of pollutants falling to the ground is increased, or the smoke lifting force is sufficient, the investment cost is huge, and the like; 4. the smoke tower technology of the thermal power plant does not have a side filtering system, but because the smoke components of the waste incineration power plant are complex, and chlorine-containing corrosive substances and ash residues in the smoke are more, the smoke inevitably affects circulating cooling water and a condenser, and further affects the safe operation and the economic benefit of the waste incineration power plant. And the waste incineration power plant adopts a mechanical draft cooling tower instead of a natural draft hyperbolic cooling tower, so that the smoke tower technology of the thermal power plant cannot be matched with the waste incineration power plant.

Therefore, the existing smoke exhausting equipment of the waste incineration power plant needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a smoke tower suitable for msw incineration power plant, this smoke tower unites two into one mechanical force ventilation cooling tower and chimney, and the effort of lifting power, the power of lifting of damp and hot steam and the effort of air exhauster of make full use of flue gas self is with flue gas lifting to higher height, and the reduction pollutant concentration of falling to the ground to reduce the height of building, thereby save the construction cost of msw power plant.

[ 1 ] a smoke tower suitable for msw incineration power plant, this smoke tower includes:

the wet and hot air recycling system comprises a smoke tower body, wherein the smoke tower body comprises an air inlet layer, a packing layer, a water collecting layer and a smoke discharging layer from bottom to top, the water collecting layer comprises a cooling water spray head, a water collecting device and an exhaust fan from bottom to top, the water collecting layer is used for recovering moisture in wet and hot air, the exhaust fan is used for extracting natural air from bottom to top, the smoke discharging layer comprises a throat pipe and a smoke outlet from bottom to top, and the smoke discharging layer is used for discharging smoke conveyed to the smoke discharging layer;

the smoke inlet pipeline is communicated with the smoke exhaust layer and is used for conveying smoke to the smoke tower body.

From this, according to the utility model discloses [ 1 ] smoke tower, this smoke tower unites two into one mechanical draft cooling tower and chimney, in the choke that the flue gas got into the cross-sectional area through advancing the cigarette pipeline and reduces gradually from bottom to top, the flue gas velocity of flow grow gradually in the choke to for its exhaust smoke tower provides the support power of lifting, damp and hot steam also provides power for the discharge of flue gas equally, in addition under the effect of air exhauster, the natural wind that inhales in the smoke tower also provides power for the discharge of flue gas, and then by lifting to higher height under making the flue gas. By adopting the smoke tower, the falling concentration of pollutants can be reduced, and the height of a building is reduced, so that the construction cost of a garbage power plant is saved.

[ 2 ] according to the smoke tower of [ 1 ], an anticorrosive layer is arranged on the inner wall of the smoke tower body. Therefore, the smoke tower body can be corroded by smoke.

And (3) according to the smoke tower (1) or (2), a phenolic resin anticorrosive layer is arranged on the inner wall of the smoke tower body corresponding to the smoke discharge layer. Therefore, the smoke exhaust layer can be easily transformed, corrosive smoke is prevented from damaging the smoke tower, and the smoke tower can bear high-temperature smoke exhaust at 140 ℃ in a waste incineration power plant.

[ 4 ] according to [ 1 ], the cigarette inlet pipeline comprises a cigarette inlet section and a cigarette outlet section, the cigarette inlet section extends into the smoke discharging layer from the side wall of the cigarette tower body, the cigarette outlet section is arranged in the smoke discharging layer and connected with the cigarette inlet section, and a smoke outlet of the cigarette outlet section is arranged above the water receiving layer. Thereby, the smoke can be lifted to a higher height.

[ 5 ] according to the smoke tower [ 4 ], the pipe diameter of the smoke inlet section is larger than that of the smoke outlet section. Therefore, the flow velocity of the flue gas can be increased, and the lifting height of the flue gas is further improved.

[ 6 ] according to [ 4 ], the smoke inlet pipeline is a nickel-based alloy steel pipeline. Therefore, the smoke inlet pipeline is high-temperature resistant and corrosion resistant, and the cost is reduced.

[ 7 ] according to the smoke tower of [ 1 ], the cross-sectional area of the smoke discharge layer is gradually reduced from bottom to top. Thereby, the smoke can be lifted to a higher height.

[ 8 ] according to the smoke tower of [ 1 ], the cross-sectional area of the water collecting layer is gradually reduced from bottom to top. Thereby, the smoke can be lifted to a higher height.

[ 9 ] the tobacco column according to [ 1 ], further comprising: the fixing frame is arranged on the periphery of the smoke tower body. This can prevent collapse of the smoke tower.

[ 10 ] the tobacco column according to [ 1 ], further comprising: and the inlet and the outlet of the side filtering unit are respectively connected with a water tank below the air inlet layer. Therefore, pollutants such as chloride ions in the circulating cooling water can be removed, the stability of the quality of the circulating water is ensured, and the stable operation of the incineration power plant is ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a smoke tower suitable for a waste incineration power plant according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

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

In one aspect of the present invention, the utility model provides a smoke tower suitable for waste incineration power plant. According to an embodiment of the present invention, referring to fig. 1, the system includes: a smoke tower body 100 and a smoke inlet pipeline 200.

The smoke tower comprises a smoke tower body 100 and a smoke discharging layer 104, wherein the smoke tower body 100 comprises an air inlet layer 101, a packing layer 102, a water collecting layer 103 and the smoke discharging layer from bottom to top, the water collecting layer 103 comprises a cooling water spray head 11, a water collector 12 and an exhaust fan 13 from bottom to top, the water collecting layer 103 is used for recovering moisture in damp and hot air, the exhaust fan 13 is used for extracting natural wind from bottom to top, the smoke discharging layer 104 comprises a throat pipe 14 and a smoke discharging port 15 from bottom to top, and the smoke discharging layer is used for discharging smoke conveyed to the smoke discharging layer. Specifically, after being discharged from the cooling water spray header, the condensed water with higher temperature enters the packing layer, the condensed water is further heated in the flowing process of the condensed water in the packing layer to become damp and hot steam, the damp and hot steam is mixed with air to become damp and hot air, and moisture in the damp and hot air is returned to the packing layer for the next working procedure after being collected by the water collector; natural wind enters the packing layer through the air inlet layer under the action of the exhaust fan, drives damp and hot steam to flow out of the exhaust fan and enter the smoke exhaust layer, and pushes smoke upwards to flow through the throat and then flow out of the smoke outlet; and the blade of the exhaust fan is supported by a strut penetrating through the air inlet layer, the packing layer and the water collecting layer. Preferably, be equipped with anticorrosive coating (not shown) on the inner wall of smoke tower body 100, this is because the flue gas composition of waste incineration power plant is complicated, contains corrosive substance in the flue gas, through set up anticorrosive coating on the inner wall of smoke tower body, can effectively prevent that smoke tower body from being corroded by the flue gas. More preferably, a phenolic resin anticorrosive layer (not shown) is provided on the inner wall of the smoke column body 100 at a position corresponding to the smoke exhaust layer 104. The phenolic resin is light in texture, easy to reform, capable of preventing corrosive smoke from damaging equipment and capable of tolerating high-temperature smoke discharge at 140 ℃ of a waste incineration power plant. Preferably, the cross-sectional area of the smoke discharging layer is gradually reduced from bottom to top; the cross section on row's cigarette layer is big when the flue gas gets into row cigarette layer, according to hydrodynamics's nature, and along with row cigarette layer's cross section diminishes gradually, the flue gas velocity of flow is faster, and fluid pressure diminishes gradually to for the flue gas flows out the tower body and provides the lifting force, and then with flue gas lifting to higher height. More preferably, the cross-sectional area of the water collecting layer is gradually reduced from bottom to top, and similarly, after the wet and hot steam enters the water collecting layer, the pressure of the wet and hot steam is reduced along with the gradual reduction of the cross-sectional area of the water collecting layer from bottom to top, and the pressure difference between the upper cross-section and the lower cross-section provides a lifting force for the rising of the wet and hot steam, so that the wet and hot steam is pushed to rise, and the smoke is pushed to rise. Therefore, the flue gas can be lifted to a higher height under the lifting force of the flue gas, the lifting force of the damp and hot steam and the acting force of the exhaust fan.

And the smoke inlet pipeline 200 is communicated with the smoke exhaust layer 104, and the smoke inlet pipeline is used for conveying smoke to the smoke tower body. Specifically, the smoke inlet pipeline is communicated with the smoke exhaust layer, so that the smoke can enter the smoke exhaust layer through the smoke inlet pipeline. Preferably, the smoke inlet pipeline 200 comprises a smoke inlet section 201 and a smoke outlet section 202, the smoke inlet section 201 extends into the smoke evacuation layer 104 from the side wall of the smoke tower body 100, the smoke outlet section 202 is arranged in the smoke evacuation layer 104 and connected with the smoke inlet section 201, and the smoke outlet 21 of the smoke outlet section 202 is above the water receiving layer 103. Preferably, the pipe diameter of the smoke inlet section 201 is larger than that of the smoke outlet section 202. Preferably, the smoke inlet pipe 200 is a nickel-based alloy steel pipe. Specifically, the smoke enters the smoke inlet pipeline through the smoke inlet section, then flows through the smoke outlet section, and finally enters the smoke exhaust layer through the smoke outlet; and the smoke inlet pipeline is made of nickel-based alloy steel which can be made of known materials, and the nickel-based alloy steel has the advantages of high temperature resistance, corrosion resistance and low price, so that the construction cost is saved. In addition, because the pipe diameter of the smoke inlet section is larger than that of the smoke outlet section, the gas flow velocity of the smoke entering the smoke inlet pipeline is smaller than that of the smoke discharged from the smoke outlet section, so that the smoke is lifted to a certain extent, and the emission height of the smoke is further improved. And will advance during the cigarette section stretches into the smoke exhausting layer from the lateral wall of cigarette tower body, go out the cigarette section and establish in the smoke exhausting layer and link to each other with advancing the cigarette section to keep away from the exhanst gas outlet who goes out the cigarette section the water receiving layer, thereby more be favorable to the discharge of flue gas.

As described above, a smoke tower suitable for a waste incineration plant according to an embodiment of the present invention may have at least one of the following advantages selected from:

according to the utility model discloses an embodiment's cigarette tower suitable for waste incineration power plant, this cigarette tower unites two into one mechanical draft cooling tower and chimney, in the venturi that the flue gas got into the cross-sectional area and reduced gradually from bottom to top through advancing the cigarette pipeline, the flue gas velocity of flow grow gradually in the venturi, thereby for its exhaust cigarette tower provides the power of holding in the palm, damp and hot steam also provides power for the discharge of flue gas equally, in addition under the effect of air exhauster, inhale the interior natural wind of cigarette tower and also provide power for the discharge of flue gas, and then make under the flue gas by lifting to higher height. By adopting the smoke tower, the falling concentration of pollutants can be reduced, and the height of a building is reduced, so that the construction cost of a garbage power plant is saved.

According to the utility model discloses an embodiment's cigarette tower suitable for waste incineration power plant is equipped with the anticorrosive coating on the inner wall of cigarette tower body, can effectively prevent that the cigarette tower body is corroded by the flue gas. And, the anticorrosive coating on the inner wall of the smoke tower body that the layer of discharging fume corresponds is the phenolic resin anticorrosive coating, and the phenolic resin texture is slim and graceful to reform transform easily, can prevent that corrosive flue gas from damaging equipment, can also tolerate the 140 ℃ high temperature of msw incineration power plant and discharge fume.

According to a preferred embodiment of the present invention, referring to fig. 1, the smoke tower suitable for the waste incineration power plant may further include: a fixing frame 400, wherein the fixing frame 400 is arranged at the periphery of the smoke tower body 100. Specifically, set up the mount at the throat of tobacco column, stabilize the base of tobacco column to prevent that the tobacco column from collapsing, technical personnel in the field can confirm the height of mount by oneself as required.

According to a preferred embodiment of the present invention, referring to fig. 1, the smoke tower suitable for the waste incineration power plant may further include: the bypass filter unit 300, and an inlet 301 and an outlet 302 of the bypass filter unit 300 are respectively connected with the water tank 105 below the air intake layer 101. Specifically, a part of the wet and hot steam flows back into the packing layer after being collected by the water collector, and finally enters the side filtering unit through the inlet of the side filtering unit, and the side filtering unit carries out filtering treatment on the obtained water, so that pollutants such as chloride ions in the circulating cooling water are removed, the stability of the quality of the circulating water is ensured, and the stable operation of the incineration power plant is ensured.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims (10)

1. A fume tower suitable for use in a waste incineration power plant, comprising:

the wet and hot air recycling system comprises a smoke tower body, wherein the smoke tower body comprises an air inlet layer, a packing layer, a water collecting layer and a smoke discharging layer from bottom to top, the water collecting layer comprises a cooling water spray head, a water collecting device and an exhaust fan from bottom to top, the water collecting layer is used for recovering moisture in wet and hot air, the exhaust fan is used for extracting natural air from bottom to top, the smoke discharging layer comprises a throat pipe and a smoke outlet from bottom to top, and the smoke discharging layer is used for discharging smoke conveyed to the smoke discharging layer;

the smoke inlet pipeline is communicated with the smoke exhaust layer and is used for conveying smoke to the smoke tower body.

2. The smoke tower of claim 1, wherein an anti-corrosion layer is provided on an inner wall of the smoke tower body.

3. The smoke tower according to claim 1 or 2, wherein a phenolic resin anticorrosive layer is arranged on the inner wall of the smoke tower body at a position corresponding to the smoke discharge layer.

4. The smoke tower of claim 1, wherein said smoke inlet duct comprises a smoke inlet section and a smoke outlet section, said smoke inlet section extends into said smoke exhaust layer from a side wall of said smoke tower body, said smoke outlet section is disposed in said smoke exhaust layer and connected to said smoke inlet section, and a smoke outlet of said smoke outlet section is above said water receiving layer.

5. A smoke tower according to claim 4, wherein the pipe diameter of said smoke inlet section is larger than the pipe diameter of said smoke outlet section.

6. The tobacco tower of claim 4, wherein the smoke intake conduit is a nickel-based alloy steel conduit.

7. The tobacco tower of claim 1, wherein the cross-sectional area of the smoke evacuation layer decreases from bottom to top.

8. The tobacco tower of claim 1, wherein the cross-sectional area of the water-collecting layer gradually decreases from bottom to top.

9. The smoke tower of claim 1, further comprising: the fixing frame is arranged on the periphery of the smoke tower body.

10. The smoke tower of claim 1, further comprising: and the inlet and the outlet of the side filtering unit are respectively connected with a water tank below the air inlet layer.

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