CN218281276U

CN218281276U - SCR (Selective catalytic reduction) denitration device for flue gas of gas furnace

Info

Publication number: CN218281276U
Application number: CN202221295372.8U
Authority: CN
Inventors: 陈昌远; 吴玲; 于杰
Original assignee: Tianjin Longking Environmental Protection Technology Co ltd
Current assignee: Tianjin Longking Environmental Protection Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2023-01-13
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to a denitrification facility technical field just discloses a gas furnace flue gas SCR denitrification facility, including drain pan and casing, the casing is fixed to be set up in the upper surface of drain pan, the top of casing is provided with the denitrifier case, the inside top of casing is provided with the shower plate, the fixed surface that down of shower plate is provided with a plurality of shower nozzles, the denitrifier case passes through connecting pipe and shower plate intercommunication setting, the inner wall of casing and the fixed filter that is provided with of downside that is located the shower plate, the lateral wall of casing just is located the fixed intake pipe that is provided with between shower plate and the filter, the fixed first diaphragm that is provided with of one side upper end inner wall of casing, it is provided with the lead screw to rotate between the diapire of first diaphragm and casing, the U template has been cup jointed to the pole wall screw thread of lead screw, one side rotation of U template is provided with the rotary disk. The utility model discloses can carry out high-efficient convenient and even heating to the flue gas, can guarantee the even abundant denitration of flue gas.

Description

SCR (Selective catalytic reduction) denitration device for flue gas of gas furnace

Technical Field

The utility model relates to a denitrification facility technical field especially relates to a gas furnace flue gas SCR denitrification facility.

Background

The SCR denitration technology is that nitrogen oxides in flue gas are selectively reduced under the action of a catalyst at 320-420 ℃ to generate N2, so that the aim of removing the nitrogen oxides is fulfilled. In the SCR technology, V2O5 is widely applied as a catalyst carrier, the optimal catalytic temperature is 302-402 ℃, and the activity is strongest at about 350 ℃.

Wherein, notice number CN210303185U discloses a flue gas SCR denitrification facility, including the main tank body and device box, one side outer wall fixed connection of device box and main tank body, the fixed inserting of the interior top of main tank body is equipped with the filling tube, threaded connection has the self priming pump on the filling tube, the filling tube is located the one end fixedly connected with shower head in the main tank body, the main tank body is close to the fixed inserting in top of device box one side inner wall and is equipped with the intake pipe, threaded connection has the air inlet valve in the intake pipe, the fixed inserting in bottom that the main tank body kept away from intake pipe one side inner wall is equipped with the outlet duct, threaded connection has the air outlet valve on the outlet duct, it is equipped with the filter screen to slide in the main tank body, still has the defect among this technical scheme:

heating rod sets up for fixed position among this technical scheme, and the gas heating rate who keeps away from the heating rod position is slow to lead to gaseous heating to accomplish in the whole main tank body and need longer time, thereby can greatly reduced work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art flue gas SCR denitrification facility's heating rod and for fixed position setting, the gas heating rate who keeps away from the heating rod position is slow to gas heating accomplishes and needs longer time in leading to whole main tank body, thereby can the greatly reduced work efficiency problem, and the gas furnace flue gas SCR denitrification facility who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a gas furnace flue gas SCR denitrification facility, includes drain pan and casing, the casing is fixed to be set up in the upper surface of drain pan, the top of casing is provided with the denitrifier case, the inside top of casing is provided with the shower plate, the lower fixed surface of shower plate is provided with a plurality of shower nozzles, the denitrifier case sets up through connecting pipe and shower plate intercommunication, the inner wall of casing just is located the downside fixed filter that is provided with of shower plate, the lateral wall of casing just is located and fixedly is provided with the intake pipe between shower plate and the filter, one side upper end inner wall of casing is fixedly provided with first diaphragm, it is provided with the lead screw to rotate between the diapire of first diaphragm and casing, the U template has been cup jointed to the pole wall screw thread of lead screw, one side of U template is rotated and is provided with the rotary disk, one side eccentric heating rod that is provided with of rotary disk, the outer wall of rotary disk has cup jointed the worm gear admittedly, the meshing of the rear side of worm gear is provided with the worm, the square bar is worn to be equipped with in the inside activity of worm, the both ends of square bar rotate with first diaphragm and the diapire of casing respectively and be connected, both ends of U template and the inner wall rotation of drive mechanism that the drive the lead screw was set gradually.

Preferably, drive mechanism includes motor and incomplete gear, the lower extreme of lead screw and square bar all extends to the inside of drain pan, the straight-teeth gear has all been fixed to cup jointed, two in the bottom of lead screw and square bar be provided with the transfer line between the straight-teeth gear, the fixed second diaphragm that is provided with of lateral wall of drain pan, the both ends of transfer line rotate with the inner wall and the second diaphragm of the drain pan that correspond respectively and are connected, incomplete gear is fixed to be cup jointed in the pole wall of transfer line, incomplete gear and two the straight-teeth gear all matches, the motor sets up in the downside of second diaphragm, the output of motor and the lower extreme fixed connection of transfer line.

Preferably, the side wall of the lower end of one side of the shell is fixedly provided with an air outlet pipe with a valve.

Preferably, one side of the U-shaped plate is abutted against the inner wall of the shell.

Preferably, the motor is fixedly connected with the second transverse plate through a fixing frame.

Preferably, a reinforcing rib is fixedly arranged between the lower surface of the second transverse plate and the side wall of the bottom shell.

Preferably, the lower ends of the screw rod and the square rod are rotatably connected with the bottom wall of the shell through sealing bearings.

Compared with the prior art, the utility model provides a gas furnace flue gas SCR denitrification facility possesses following beneficial effect:

this gas furnace flue gas SCR denitrification facility, drive incomplete gear through the motor and rotate, drive two gear revolve promptly in proper order, at first one side gear drives the square bar and rotates, it rotates to drive the worm promptly, the worm drives the worm wheel and rotates, it rotates to drive the rotary disk promptly, the rotary disk drives the heating pipe rotation of eccentric settings, carry out even heating to the current region promptly, then the other side gear drives the lead screw and rotates, it removes to drive the U template promptly, just make the relative square bar of worm slide, it removes to drive the heating pipe promptly, then repeat above-mentioned action, can carry out high-efficient convenient and even heating to the inside flue gas of casing promptly, can guarantee the even abundant denitration of flue gas.

The device does not relate to the part among all the same with prior art or can adopt prior art to realize, the utility model discloses can carry out high-efficient convenient and even heating to the flue gas, can guarantee the even abundant denitration of flue gas.

Drawings

Fig. 1 is a schematic structural view of an SCR denitration device for flue gas of a gas furnace according to the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

fig. 3 is an enlarged view of a portion a of fig. 2.

In the figure: the denitration device comprises a bottom shell 1, a shell 2, a denitration agent box 3, a spraying plate 4, a spray head 5, a connecting pipe 6, a filtering plate 7, an air inlet pipe 8, a first transverse plate 9, a screw rod 10, a U-shaped plate 11, a rotating disc 12, a heating rod 13, a worm wheel 14, a worm 15, a square rod 16, a straight gear 17, a transmission rod 18, an incomplete gear 19, a second transverse plate 20 and a motor 21.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-3, a gas furnace flue gas SCR denitration device, including a bottom case 1 and a housing 2, the housing 2 is fixedly arranged on the upper surface of the bottom case 1, the top of the housing 2 is provided with a denitration agent box 3, the top end of the inside of the housing 2 is provided with a spray plate 4, the lower surface of the spray plate 4 is fixedly provided with a plurality of spray heads 5, the denitration agent box 3 is communicated with the spray plate 4 through a connecting pipe 6, the inner wall of the housing 2 and the lower side of the spray plate 4 are fixedly provided with a filter plate 7, the side wall of the housing 2 and the space between the spray plate 4 and the filter plate 7 are fixedly provided with an air inlet pipe 8, the side wall of the lower end of one side of the housing 2 is fixedly provided with an air outlet pipe with a valve, so as to facilitate the control of exhaust, the inner wall of the upper end of one side of the housing 2 is fixedly provided with a first transverse plate 9, a screw rod 10 is rotatably arranged between the first transverse plate 9 and the bottom wall of the housing 2, the screw rod 10 is in threaded connection with a U-shaped plate 11, one side of the U-shaped plate 11 is abutted against the inner wall of the housing 2, so that the U-shaped plate 11 can not rotate, i.e. the U-shaped plate 11 can stably slide, a rotating disk is provided with a rotating disk, one side of the rotating disk 12, and one side of the rotating disk 13 eccentrically arranged;

referring to fig. 2-3, the outer wall of the rotating disc 12 is fixedly sleeved with a worm wheel 14, the rear side of the worm wheel 14 is engaged with a worm 15, a square rod 16 penetrates through the interior of the worm 15, two ends of the square rod 16 are respectively connected with the first transverse plate 9 and the bottom wall of the shell 2 in a rotating mode, two ends of the worm 15 are connected with the inner wall of the U-shaped plate 11 in a rotating mode, lower ends of the screw rod 10 and the square rod 16 are connected with the bottom wall of the shell 2 in a rotating mode through sealing bearings, and sealing performance of the shell 2 is improved.

Example two

Referring to fig. 2-3, a transmission mechanism disposed inside the bottom case 1 and sequentially driving the screw rod 10 and the square rod 16 to rotate includes a motor 21 and an incomplete gear 19, lower ends of the screw rod 10 and the square rod 16 both extend into the bottom case 1, straight gears 17 are fixedly sleeved at bottom ends of the screw rod 10 and the square rod 16, a transmission rod 18 is disposed between the two straight gears 17, a second transverse plate 20 is fixedly disposed on a side wall of the bottom case 1, two ends of the transmission rod 18 are respectively rotatably connected with an inner wall of the bottom case 1 and the second transverse plate 20, the incomplete gear 19 is fixedly sleeved on a rod wall of the transmission rod 18, the incomplete gear 19 is respectively matched with the two straight gears 17, the motor 21 is disposed at a lower side of the second transverse plate 20, an output end of the motor 21 is fixedly connected with a lower end of the transmission rod 18, the motor 21 is fixedly connected with the second transverse plate 20 through a fixing frame, so that the motor 21 is more stably connected with the second transverse plate 20, reinforcing ribs are fixedly disposed between a lower surface of the second transverse plate 20 and a side wall of the bottom case 1, and support strength of the second transverse plate 20 is improved.

The utility model discloses in, during the use, switch-on motor 21's power, motor 21 drives incomplete gear 19 and rotates, drive two gear 17 rotations promptly in proper order, at first one side gear 17 drives square bar 16 and rotates, it rotates to drive worm 15 promptly, worm 15 drives worm wheel 14 and rotates, it rotates to drive rotary disk 12 promptly, rotary disk 12 drives eccentric settings's heating pipe 13 and rotates, carry out even heating to current region promptly, then another side gear 17 drives lead screw 10 and rotates, it removes to drive U template 11 promptly, make worm 15 slide relative square bar 16, it removes to drive heating pipe 13 promptly, then repeat above-mentioned action, can carry out high-efficient convenient and even heating to casing 1 inside flue gas promptly, then spray the denitrifier in the denitrifier case 3 from a plurality of shower nozzles 5 blowout of 4 lower surfaces of shower plate, can be to the even abundant denitration of flue gas promptly.

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

Claims

1. The SCR denitration device for the flue gas of the gas furnace comprises a bottom shell (1) and a shell (2), and is characterized in that the shell (2) is fixedly arranged on the upper surface of the bottom shell (1), a denitration agent box (3) is arranged at the top of the shell (2), a spray plate (4) is arranged at the top end inside the shell (2), a plurality of spray heads (5) are fixedly arranged on the lower surface of the spray plate (4), the denitration agent box (3) is communicated with the spray plate (4) through a connecting pipe (6), a filter plate (7) is fixedly arranged on the inner wall of the shell (2) and positioned at the lower side of the spray plate (4), an air inlet pipe (8) is fixedly arranged on the side wall of the shell (2) and positioned between the spray plate (4) and the filter plate (7), a first transverse plate (9) is fixedly arranged on the inner wall of the upper end of one side of the shell (2), a screw rod (10) is rotatably arranged between the first transverse plate (9) and the bottom wall of the shell (2), a U (11) is sleeved with a screw thread, a rotating disc (12) is arranged on one side of the rotating disc (13);

the fixed worm wheel (14) that has cup jointed of outer wall of rotary disk (12), the rear side meshing of worm wheel (14) is provided with worm (15), square bar (16) are worn to be equipped with in the inside activity of worm (15), the both ends of square bar (16) rotate with the diapire of first diaphragm (9) and casing (2) respectively and are connected, the both ends of worm (15) all rotate with the inner wall of U template (11) and are connected, the inside of drain pan (1) is provided with drives lead screw (10) and square bar (16) pivoted drive mechanism in proper order.

2. The SCR denitration device for flue gas of a gas furnace according to claim 1, wherein the transmission mechanism comprises a motor (21) and an incomplete gear (19), the lower ends of the screw rod (10) and the square rod (16) both extend into the bottom shell (1), the bottom ends of the screw rod (10) and the square rod (16) are both fixedly sleeved with a spur gear (17), two transmission rods (18) are arranged between the spur gears (17), the side wall of the bottom shell (1) is fixedly provided with a second transverse plate (20), two ends of each transmission rod (18) are respectively rotatably connected with the inner wall of the corresponding bottom shell (1) and the second transverse plate (20), the incomplete gear (19) is fixedly sleeved on the rod wall of the transmission rod (18), the incomplete gear (19) is respectively matched with the two spur gears (17), the motor (21) is arranged on the lower side of the second transverse plate (20), and the output end of the motor (21) is fixedly connected with the lower end of the transmission rod (18).

3. The SCR denitration device for the gas furnace flue gas according to claim 1, wherein an air outlet pipe with a valve is fixedly arranged on the side wall of the lower end of one side of the shell (2).

4. The SCR denitration device for the gas furnace flue gas according to claim 1, wherein one side of the U-shaped plate (11) is abutted against the inner wall of the shell (2).

5. The SCR denitration device for the gas furnace flue gas as recited in claim 2, wherein the motor (21) is fixedly connected with the second transverse plate (20) through a fixing frame.

6. The SCR denitration device for the gas furnace flue gas according to claim 2, wherein a reinforcing rib is fixedly arranged between the lower surface of the second transverse plate (20) and the side wall of the bottom shell (1).

7. The SCR denitration device for the gas furnace flue gas according to claim 1, wherein the lower ends of the screw rod (10) and the square rod (16) are rotatably connected with the bottom wall of the shell (2) through a sealing bearing.