CN210584355U - Nitrogen oxide tail gas treatment facility - Google Patents
Nitrogen oxide tail gas treatment facility Download PDFInfo
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- CN210584355U CN210584355U CN201921292130.1U CN201921292130U CN210584355U CN 210584355 U CN210584355 U CN 210584355U CN 201921292130 U CN201921292130 U CN 201921292130U CN 210584355 U CN210584355 U CN 210584355U
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- tail gas
- gas treatment
- spray
- heat exchange
- nitrogen oxide
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Abstract
The utility model relates to a nitrogen oxide tail gas treatment facility, the spray column is equipped with intake pipe and outlet duct, the inlet end and the outlet duct of suction fan are connected, circulation tank is connected with the play liquid end of spray column, spray column from the top down has the defogging layer, first shower, first whirl board, the packing layer, second shower and second whirl board, the inlet and the circulation tank of circulating pump are connected, the liquid outlet of circulating pump passes through the connecting pipe and is connected with first shower and second shower respectively, heat exchange coil coils the periphery at the connecting pipe, heat exchange coil coils by the heat exchange tube of ripple shape and coils formation, and heat exchange coil is big end down's structure, the defogging layer is connected with vibration mechanism, the direction of rotation of the blade of first whirl board is opposite with the direction of rotation of the blade of second whirl board, and the equal slope setting of blade top-down. The utility model has the advantages of the tail gas treatment effect is good, the heat transfer is effectual and can reduce the water content of exhaust tail gas.
Description
Technical Field
The utility model relates to a tail gas treatment equipment technical field, more specifically say, relate to a nitrogen oxide tail gas treatment equipment.
Background
Generally contain nitrogen oxide's tail gas, can release heat at the absorption liquid absorption NOx in-process, if not to cool down the absorption liquid, thereby the temperature of absorption liquid constantly risees and leads to its high temperature, and the absorption liquid of high temperature is unfavorable for NOx's absorption, the tail gas of discharging leads to reaching emission standard easily like this, at present, current spray column sprays the absorption liquid and carries out the purification of NOx tail gas, the high temperature that the absorption process produced adopts outside heat transfer system to cool down, this will lead to high power consumption, and the tail gas flow velocity leads to the treatment effect not good too fast, and the tail gas water content of exhaust is on the high side.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that a nitrogen oxide tail gas treatment facility is provided, can reduce the water content of exhaust tail gas, and tail gas treatment is effectual, the heat transfer is effectual.
The utility model provides a nitrogen oxide tail gas treatment device, which comprises a spray tower, a circulating water tank, a heat exchange coil, a circulating pump and a suction fan, wherein the bottom of the spray tower is provided with an air inlet pipe, the top of the spray tower is connected with an air outlet pipe, the air inlet end of the suction fan is connected with the air outlet pipe, the air outlet end of the suction fan is communicated with the atmosphere, the circulating water tank is connected with the liquid outlet end of the spray tower, the heat exchange coil is arranged in the circulating water tank, a defogging layer, a first spray pipe, a first rotational flow plate, a packing layer, a second spray pipe and a second rotational flow plate are arranged in the spray tower from top to bottom, the liquid inlet of the circulating pump is connected with the circulating water tank, the liquid outlet of the circulating pump is respectively connected with the first spray pipe and the second spray pipe through connecting pipes, the heat exchange coil is coiled at the periphery of the connecting pipes, the heat exchange coil is coiled by corrugated heat, the heat exchange coil is of a structure with a small upper part and a large lower part, the top of the demisting layer is connected with a vibration mechanism, the outer wall of the demisting layer is connected with an elastic connecting rod between the inner walls of the spray towers, the rotating direction of the blades of the first spiral-flow plate is opposite to that of the blades of the second spiral-flow plate, the first spiral-flow plate and the second spiral-flow plate respectively comprise an outer frame, blades and an inner frame, the blades are connected between the inner wall of the outer frame and the outer wall of the inner frame, the outer frame is located above the inner frame, and the blades are obliquely arranged from top to bottom.
As the utility model discloses a preferred scheme, the spray column includes first tower body and second tower body, the defogging layer sets up in the first tower body, first shower, first whirl board, packing layer, second shower and second whirl board from the top down set up in the second tower body, the internal diameter of first tower body is greater than the internal diameter of second tower body.
As the preferred scheme of the utility model, defogging layer is including the first ripple mesh plate, the clean shot body layer and the second ripple mesh plate that set gradually.
As the utility model discloses a preferred scheme, first shower is equipped with a plurality of first nozzles that set up down, the second shower is equipped with a plurality of second nozzles that set up and the third nozzle that sets up down.
As a preferred aspect of the present invention, the first nozzle, the second nozzle, and the third nozzle are all spiral nozzles.
As an optimized scheme of the utility model, the inside casing is equipped with the inner panel.
As the preferred scheme of the utility model, the circulating water tank with be equipped with the sandstone filtration ware between the inlet of circulating pump.
As the preferred scheme of the utility model, the outer wall of spray column is equipped with a plurality of transparent observation windows.
As the utility model discloses a preferred scheme, the observation window is equipped with two and just right respectively first shower and second shower.
As the preferred scheme of the utility model, the outer wall of spray tower is equipped with the access door.
Implement the utility model discloses a nitrogen oxide tail gas treatment facility compares with prior art, has following beneficial effect:
in the utility model, the first and second cyclone plates can guide the flowing air flow into spiral air flow, and the rotation direction of the blade of the first cyclone plate is opposite to that of the blade of the second cyclone plate, so that the flowing speed of the tail gas can be reduced, the contact area between the tail gas and the absorption liquid is increased, the tail gas treatment effect is enhanced, the blades are obliquely arranged from top to bottom, so that the water attached to the blades can flow downwards under the action of gravity, and the phenomenon that the flowing of the tail gas is influenced by excessive liquid drops attached to the blades is avoided; moreover, the heat exchange coil is arranged in the circulating water tank and can directly exchange heat with absorption liquid in the circulating water tank, the heat exchange tubes are corrugated and can increase the contact area with the absorption liquid in the circulating water tank, and the heat exchange coil is of a structure with a small upper part and a large lower part, so that the absorption liquid entering the circulating water tank from the spray tower is flocculated and flows, the absorption liquid can exchange heat better, the heat exchange effect is good, and energy is saved; in addition, through the vibration of the vibration mechanism to the defogging layer, the impurities and the retained liquid drops hidden in the defogging layer can be vibrated down, and the defogging effect of the defogging layer is ensured.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a nitrogen oxide tail gas treatment device provided by the present invention;
wherein, 1 is a spray tower; 2 is a circulating water tank; 3 is a heat exchange coil; 4 is a circulating pump; 5 is a suction fan; 6 is a sand filter; 7 is an observation window; 8 is an air inlet pipe; 9 is an air outlet pipe; 11 is a demisting layer; 12 is a first spray pipe; 13 is a first swirl plate; 14 is a filler layer; 15 is a second spray pipe; 16 is a second swirl plate; 17 is a first tower body; 18 is a second tower body; 19 is a vibration mechanism; 10 is an elastic connecting rod.
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 efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the preferred embodiment of the present invention comprises a spray tower 1, a circulating water tank 2, a heat exchange coil 3, a circulating pump 4 and a suction fan 5, wherein an air inlet pipe 8 is arranged at the bottom of the spray tower 1, an air outlet pipe 9 is connected to the top of the spray tower 1, an air inlet end of the suction fan 5 is connected to the air outlet pipe 9, an air outlet end of the suction fan 5 is communicated with the atmosphere, the circulating water tank 2 is connected to an air outlet end of the spray tower 1, the heat exchange coil 3 is arranged in the circulating water tank 2, a defogging layer 11, a first spray pipe 12, a first rotational flow plate 13, a packing layer 14, a second spray pipe 15 and a second rotational flow plate 16 are arranged from top to bottom in the spray tower 1, a liquid inlet of the circulating pump 4 is connected to the circulating water tank 2, a liquid outlet of the circulating pump 4 is respectively connected to the first spray pipe 12 and the second spray pipe 15 through connecting pipes, the heat exchange coil 3 is wound on the periphery of the connecting pipe, the heat exchange coil 3 is formed by winding a corrugated heat exchange pipe, the inner wall and the outer wall of the heat exchange pipe are both corrugated, the heat exchange coil 3 is of a structure with a small upper part and a large lower part, the top of the defogging layer 11 is connected with a vibration mechanism 19, an elastic connecting rod 10 is connected between the outer wall of the defogging layer 11 and the inner wall of the spray tower 1, the rotation direction of the blades of the first rotational flow plate 13 is opposite to that of the blades of the second rotational flow plate 16, the first rotational flow plate 13 and the second rotational flow plate 16 both comprise an outer frame, blades and an inner frame, the blades are connected between the inner wall of the outer frame and the outer wall of the inner frame, the outer frame is positioned above the inner frame, and the blades are obliquely arranged from top; and the liquid inlet and the liquid outlet of the heat exchange coil 3 are respectively connected with the cooling tower, and the vibration mechanism 19 is preferably a vibration motor.
The utility model discloses first whirl board 13 and second whirl board 16 can both be with the air current that flows through guide spiral air current, the direction of rotation of the blade of first whirl board 13 is opposite with the direction of rotation of the blade of second whirl board 16, can slow down the flow velocity of tail gas, improve the area of contact of tail gas and absorption liquid to strengthen tail gas treatment effect, the slope setting of blade top-down can make the hydroenergy that adheres to the blade enough flow away downwards through the effect of gravity, and avoid the liquid drop on the blade to adhere to too much and influence the tail gas flow and pass through; moreover, the heat exchange coil 3 is arranged in the circulating water tank 2 and can directly exchange heat with the absorption liquid in the circulating water tank 2, the heat exchange tubes are corrugated, the contact area with the absorption liquid in the circulating water tank 2 can be increased, the heat exchange coil 3 is of a structure with a small upper part and a large lower part, so that the absorption liquid entering the circulating water tank 2 from the spray tower 1 is flocculated and flows, the absorption liquid can exchange heat better, the heat exchange effect is good, and energy is saved; in addition, the vibration mechanism 19 vibrates the defogging layer 11, thereby vibrating the impurities and the accumulated liquid droplets hidden in the defogging layer 11 and ensuring the defogging effect of the defogging layer 11.
Exemplarily, spray column 1 includes first tower 17 and second tower 18, defogging layer 11 sets up in the first tower 17, first shower 12, first whirl board 13, packing layer 14, second shower 15 and second whirl board 16 from the top down set up in the second tower 18, because the internal diameter of first tower 17 is greater than the internal diameter of second tower 18, when making the tail gas in the second tower 18 get into first tower 17, the velocity of flow reduces, and the corresponding area increase in defogging layer 11 moreover can improve the defogging effect of tail gas.
Illustratively, the defogging layer 11 comprises a first corrugated mesh plate, a hollow sphere layer and a second corrugated mesh plate which are sequentially arranged, tail gas with steam is firstly preliminarily condensed on the second corrugated mesh plate, then is condensed on the hollow sphere layer again to remove water vapor, and finally is further defogged on the first corrugated mesh plate, so that the defogging effect of the tail gas is further improved.
Exemplarily, first shower 12 is equipped with a plurality of first nozzles that set up down, second shower 15 is equipped with a plurality of second nozzles that set up and the third nozzle that sets up down, can guarantee the contact volume and the area of contact of tail gas and absorption liquid, improves the tail gas treatment effect.
Illustratively, the first nozzle, the second nozzle and the third nozzle are all spiral nozzles, so that the blockage of the nozzles by the absorption liquid can be reduced to the maximum extent, and the maximum flow of the absorption liquid can be achieved on a pipeline with a given size.
In order to avoid that the tail gas directly passes through the inner frame, the inner frame is provided with an inner plate.
Illustratively, a sand filter 6 is arranged between the circulating water tank 2 and a liquid inlet of the circulating pump 4, so that the circulating absorption liquid is prevented from blocking all parts, and the service life of the equipment is ensured.
Illustratively, the outer wall of spray tower 1 is equipped with a plurality of transparent observation windows 7, observation window 7 is equipped with two and just to respectively first shower 12 and second shower 15, can observe the inside condition of spray tower 1 at any time through observation window 7.
Exemplarily, the outer wall of spray tower 1 is equipped with the access door, and when spray tower 1 overhauld, directly open the access door and can overhaul, make things convenient for the maintenance personal to operate.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A nitric oxide tail gas treatment device is characterized by comprising a spray tower, a circulating water tank, a heat exchange coil, a circulating pump and a suction fan, wherein an air inlet pipe is arranged at the bottom of the spray tower, an air outlet pipe is connected to the top of the spray tower, an air inlet end of the suction fan is connected with the air outlet pipe, an air outlet end of the suction fan is communicated with the atmosphere, the circulating water tank is connected with an liquid outlet end of the spray tower, the heat exchange coil is arranged in the circulating water tank, a defogging layer, a first spray pipe, a first rotational flow plate, a packing layer, a second spray pipe and a second rotational flow plate are arranged in the spray tower from top to bottom, an inlet of the circulating pump is connected with the circulating water tank, a liquid outlet of the circulating pump is respectively connected with the first spray pipe and the second spray pipe through connecting pipes, the heat exchange coil is coiled on the periphery of the connecting pipes, and is formed by coiling corrugated heat exchange pipes, the heat exchange coil is of a structure with a small upper part and a large lower part, the top of the demisting layer is connected with a vibration mechanism, the outer wall of the demisting layer is connected with an elastic connecting rod between the inner walls of the spray towers, the rotating direction of the blades of the first spiral-flow plate is opposite to that of the blades of the second spiral-flow plate, the first spiral-flow plate and the second spiral-flow plate respectively comprise an outer frame, blades and an inner frame, the blades are connected between the inner wall of the outer frame and the outer wall of the inner frame, the outer frame is located above the inner frame, and the blades are obliquely arranged from top to bottom.
2. The nitrogen oxide tail gas treatment device according to claim 1, wherein the spray tower comprises a first tower body and a second tower body, the defogging layer is arranged in the first tower body, the first spray pipe, the first rotational flow plate, the filler layer, the second spray pipe and the second rotational flow plate are arranged in the second tower body from top to bottom, and the inner diameter of the first tower body is larger than that of the second tower body.
3. The nitrogen oxide tail gas treatment equipment as claimed in claim 1, wherein the demisting layer comprises a first corrugated mesh plate, a hollow sphere layer and a second corrugated mesh plate which are arranged in sequence.
4. The nitrogen oxide tail gas treatment apparatus according to claim 1, wherein the first spray pipe is provided with a plurality of first nozzles disposed downward, and the second spray pipe is provided with a plurality of second nozzles disposed upward and third nozzles disposed downward.
5. The nitrogen oxide tail gas treatment facility of claim 4, wherein the first nozzle, the second nozzle, and the third nozzle are all spiral nozzles.
6. The nitrogen oxide tail gas treatment device of claim 1, wherein the inner frame is provided with an inner plate.
7. The nitrogen oxide tail gas treatment equipment as claimed in claim 1, wherein a sand filter is arranged between the circulating water tank and the liquid inlet of the circulating pump.
8. The nitrogen oxide tail gas treatment equipment as claimed in claim 1, wherein the outer wall of the spray tower is provided with a plurality of transparent observation windows.
9. The nitrogen oxide tail gas treatment device of claim 8, wherein the observation window is provided with two and respectively opposite to the first spray pipe and the second spray pipe.
10. The nitrogen oxide tail gas treatment facility of claim 1, wherein an access door is provided on an outer wall of the spray tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292130.1U CN210584355U (en) | 2019-08-08 | 2019-08-08 | Nitrogen oxide tail gas treatment facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921292130.1U CN210584355U (en) | 2019-08-08 | 2019-08-08 | Nitrogen oxide tail gas treatment facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210584355U true CN210584355U (en) | 2020-05-22 |
Family
ID=70683883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921292130.1U Active CN210584355U (en) | 2019-08-08 | 2019-08-08 | Nitrogen oxide tail gas treatment facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210584355U (en) |
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2019
- 2019-08-08 CN CN201921292130.1U patent/CN210584355U/en active Active
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