CN210584480U

CN210584480U - Many storehouses of deNOx systems configuration device

Info

Publication number: CN210584480U
Application number: CN201920895525.4U
Authority: CN
Inventors: 严巍; 朱全山; 唐富顺; 周广志
Original assignee: Jiangsu Honest Environmental Protection Technology Co ltd
Current assignee: Jiangsu Honest Environmental Protection Technology Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-22
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a multi-bin configuration device of a denitration system in the technical field of environmental protection, which comprises a flue gas flow equalizing structural member, an ammonia water storage tank, an ammonia water pump, an evaporator, an ammonia air mixer, an ammonia spraying grid, a fan and an ammonia smoke mixer, the inner cavity of the multi-bin SCR reactor is uniformly provided with denitration bins, the right side of the multi-bin SCR reactor is provided with a compressor, the denitration bins in each group of SCR reactors of the utility model are correspondingly provided with a flow inlet branch pipe, a flow control mechanism and a flow outlet pipe, meanwhile, the control valve is arranged, so that the flue gas can be adjusted to enter the denitration bins with different combinations of catalysts for denitration according to the flow and components of the flue gas, the use is convenient, meanwhile, the flow control mechanism is arranged, so that the user can conveniently use the denitration device according to the old and new conditions of the catalyst layer in the denitration bin, the flow that the flue gas got into in the denitration storehouse is adjusted to damage condition or poisoning condition, improves working quality greatly.

Description

Many storehouses of deNOx systems configuration device

Technical Field

The utility model relates to an environmental protection technology field specifically is a many storehouses of deNOx systems configuration device.

Background

An SCR flue gas denitration system is a system for denitration of flue gas by adopting a selective catalytic reduction method, and the SCR flue gas denitration technology is a technology for reducing NOx in flue gas selectively by a reducing agent (generally ammonia) in a low-temperature range (generally within 310-420 ℃) in the presence of a catalyst and oxygen to generate N2 and water to reduce NOx emission, in the prior art, a single SCR reactor is generally adopted for an SCR flue gas denitration system to work, and the working performance, the working efficiency and the safety of system operation have obvious limitations, although the prior art adopts a plurality of groups of SCR reactors or SCR reactors with a plurality of bins to work, certain defects still exist, the entering flue gas amount can not be adjusted according to the old and new conditions, the damage conditions or the poisoning conditions of the catalyst in the SCR reactor, the treatment quality is influenced, and the heating temperature in the SCR reactor is not convenient to control, therefore, a multi-bin configuration device of the denitration system is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a many storehouses of deNOx systems configuration device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-bin configuration device of a denitration system comprises a flue gas flow equalizing structure, an ammonia water storage tank, an ammonia water pump, an evaporator, an ammonia air mixer, an ammonia spraying grid, a fan and an ammonia smoke mixer, wherein the ammonia water storage tank is connected with the ammonia water pump through a pipeline, the ammonia water pump is connected with the evaporator through a pipeline, the evaporator is connected with the ammonia air mixer through a pipeline, the input end of the ammonia air mixer is also connected with the fan, the ammonia spraying grid is connected with the flue gas flow equalizing structure through a pipeline, the ammonia spraying grid is connected with the ammonia smoke mixer through a pipeline, the ammonia smoke mixer is communicated with a collecting pipe through a connecting pipe, the bottom of the collecting pipe is uniformly communicated with a flow inlet branch pipe, a control valve is arranged on the flow inlet branch pipe, a flow control mechanism is communicated with the bottom of the flow inlet branch pipe, a flow outlet pipe which is communicated with the flow inlet pipe is arranged at the bottom of the flow inlet pipe, the denitration bin corresponds to the flow outlet pipe, the bottom of the flow outlet pipe is communicated with the denitration bin, the top of the denitration bin is provided with a rectifying device, the inner cavity of the denitration bin is provided with a heating device, the heating device is positioned below the rectifying device, the outer wall of the top of the denitration bin is provided with a heating controller matched with the heating device, a catalyst layer is uniformly arranged in the denitration bin and positioned below the heating device, the right side of the multi-bin SCR reactor is provided with a compressor, the output end of the compressor is connected with two groups of flow pipes through a pipeline connecting piece, the left end of each flow pipe penetrates through the multi-bin SCR reactor and extends into the denitration bin on the left side, the outer wall of the bottom of the flow pipe positioned in the inner cavity of the denitration bin is provided with a soot blower, the flow pipes are positioned above the catalyst layer, and the.

Further, flow control mechanism includes the spherical shell that is linked together with influent stream branch pipe and play flow tube, spherical shell front side outer wall is pegged graft and is had the pivot, and the pivot rear end passes through bearing and spherical shell rear side inner wall centre of a circle swing joint, the pivot outer wall is provided with the fan-shaped valve with influent stream branch pipe matched with, the position that spherical shell left side inner wall leaned on and the position that right side inner wall leaned on down all fixed be provided with fan-shaped valve matched with dog, pivot outer wall front end is fixed to be cup jointed driven gear, spherical shell front side outer wall bottom is fixed and is provided with miniature step motor, and the miniature step motor output is provided with the driving gear with driven gear meshing.

Further, heating device includes three heating pipes of group, and three heating pipe rear ends of group evenly are provided with the support, and are provided with the bolt on the support, and denitration storehouse inner wall be provided with the screw that the bolt matches, three groups the heating pipe inner chamber all is provided with the heater strip, and three heater strip left sides of group all are connected with connecting wire, and the connecting wire other end is connected with heating controller.

Furthermore, a fan-shaped transparent window is arranged at the top of the outer wall of the front side of the spherical shell, and a scale strip is arranged on the transparent window.

Furthermore, the number of the denitration bins is four, and the outer wall of the front side of the multi-bin SCR reactor is provided with a turnover bin door corresponding to the denitration bins.

Further, the catalyst layers that set up in the denitration storehouse are two sets of, and two sets of catalyst layers all arrange vertically in the denitration storehouse along the line.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the utility model discloses denitration storehouse in every group SCR reactor corresponds to into flow branch pipe, flow control mechanism and outflow pipe, is provided with the control valve simultaneously, can adjust the flue gas according to flue gas flow and composition and get into the denitration storehouse that has the catalyst of different combinations and carry out the denitration, facilitates the use, and the flow control mechanism who sets up simultaneously facilitates the user of service and adjusts the flow that the flue gas got into in the denitration storehouse according to the old and new condition of the catalyst layer in the denitration storehouse, damaged condition or poisoning condition, improves work quality greatly;

2) the utility model discloses correspond in every group denitration storehouse and be provided with heating device, and heating device controls through heating controller, make things convenient for the user of service to adjust the heating temperature in the denitration storehouse according to the inside condition, convenient to use, the independent utility in multiunit denitration storehouse simultaneously, when needing the regeneration, regenerate one of them earlier, all the other denitration storehouses can also continue to use, one by one the denitration storehouse regenerate can, consequently, need not interrupt production during the regeneration, the continuity of production has been guaranteed.

Drawings

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

FIG. 2 is a schematic structural view of the flow control mechanism of the present invention;

fig. 3 is a front view of the structure of the flow control mechanism of the present invention;

fig. 4 is a schematic structural view of the heating device of the present invention.

In the figure: 1. a flue gas flow equalizing structure; 2. a header pipe; 3. an inflow branch pipe; 4. a control valve; 5. a flow control mechanism; 51. a spherical shell; 52. a rotating shaft; 53. a fan-shaped valve; 54. a stopper; 55. a driven gear; 56. a driving gear; 6. a multi-bin SCR reactor; 7. a rectifying device; 8. a heating controller; 9. a heating device; 91. heating a tube; 92. a support; 93. heating wires; 94. connecting a lead; 10. a catalyst layer; 11. a shunt tube; 12. a denitration bin; 13. a drain pipe; 14. a collector pipe; 15. a compressor.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a many storehouses of deNOx systems configuration device, structure 1 flow equalizes including the flue gas, the aqueous ammonia storage tank, the ammonia pump, the evaporimeter, the empty blender of ammonia, spout the ammonia grid, fan and ammonia cigarette blender, the aqueous ammonia storage tank passes through the pipe connection ammonia pump, the ammonia pump passes through the pipe connection evaporimeter, the evaporimeter passes through the empty blender of pipe connection ammonia, the empty blender input of ammonia still is connected with the fan, it flow equalizes structure 1 to spout the ammonia grid through the pipe connection flue gas, it passes through the pipe connection ammonia cigarette blender to spout the ammonia grid, above-mentioned structure and installation and cooperation are at patent number: the utility model discloses in "CN 201620113306.2", and do not belong to the technical characteristics of the utility model, here, do not explain in detail, the ammonia cigarette blender has pressure manifold 2 through the connecting pipe intercommunication, and the flue gas structure 1 that flow equalizes can adopt patent number: the flue gas flow equalizing structure 1 in "CN201520696674. X", the air inlet of the flue gas flow equalizing structure 1 is connected with the flue gas inlet pipe, the left and right ends of the collecting pipe 2 are closed, the bottom of the collecting pipe 2 is evenly communicated with an inlet branch pipe 3, and the inlet branch pipe 3 is provided with a control valve 4 for controlling the opening and closing operations, the bottom of the inlet branch pipe 3 is communicated with a flow control mechanism 5, the bottom of the flow control mechanism 5 is provided with an outlet pipe communicated with each other, and a multi-bin SCR reactor 6 is arranged below the outlet pipe, the inner cavity of the multi-bin SCR reactor 6 is evenly provided with a denitration bin 12 (a plurality of denitration bins 12 can be formed by separating a plurality of groups of high temperature resistant separating plates in the multi-bin SCR reactor 6, of course, the utility model discloses a denitration bin 12 is not limited to the above structure in the concrete structure, and all the modes of, and denitration storehouse 12 is corresponding with the play flow tube, and play flow tube bottom is linked together with denitration storehouse 12, and 12 tops in denitration storehouse are provided with fairing 7, and fairing 7 is prior art, can adopt the patent number: the rectifying device 7 in "CN 201620113306.2", as already disclosed and not belonging to the technical features of the present invention, will not be elaborated herein, the inner cavity of the denitration bin 12 is provided with a heating device 9, and the heating device 9 is located below the rectifying device 7, the outer wall of the top of the denitration bin 12 is provided with a heating controller 8 matching with the heating device 9, the denitration bin 12 is uniformly provided with catalyst layers 10, the catalyst layers 10 in each denitration bin 12 can be different, so as to facilitate the adjustment of flue gas flow and components according to flue gas flow and components to enter the denitration bins 12 with different combinations of catalyst layers 10 for denitration, and the catalyst layers 10 are located below the heating device 9, the right side of the multi-bin SCR reactor 6 is provided with a compressor 15, the compressor 15 is connected with an external power supply through a wire, the output end of the compressor 15 is connected with two sets of shunt tubes 11 through a pipe connection, and the left end of the shunt tube 11 runs through the multi-bin SCR reactor 6 and extends, the shunt tubes 11 are arranged on the outer wall of the bottom of the inner cavity of the denitration bin 12 and are provided with soot blowers which can adopt the following patent numbers: the soot blower in "CN 201620113306.2", because disclose, and do not belong to the utility model discloses technical characteristics, here, do not explain in detail, and shunt tubes 11 is located catalyst layer 10 top, and denitration storehouse 12 bottom is connected with collecting pipe 14 through discharge tube 13, and collecting pipe 14's left end can be connected with the flue gas pipeline of giving vent to anger, can set up the draught fan on the flue gas pipeline of giving vent to anger, can send the flue gas to the chimney.

As shown in fig. 2 and 3: the flow control mechanism 5 comprises a spherical shell 51 communicated with the inflow branch pipe 3 and the outflow pipe, a rotating shaft 52 is inserted on the outer wall of the front side of the spherical shell 51, a bearing and a left sealing ring are arranged at the joint of the rotating shaft 52 and the spherical shell 51 to reduce the rotary abrasion and ensure the sealing, the rear end of the rotating shaft 52 is movably connected with the circle center of the inner wall of the rear side of the spherical shell 51 through the bearing, a sector valve 53 matched with the inflow branch pipe 3 is arranged on the outer wall of the rotating shaft 52, as can be seen from figure 2, the inflow aperture of the inflow branch pipe 3 can be controlled through the rotation of the sector valve 53, thereby controlling the flow, a stop block 54 matched with the sector valve 53 is fixedly arranged at the upper position of the inner wall of the left side of the spherical shell 51 and the lower position of the inner wall of the right side for limiting the rotation range of the sector valve 53, a driven gear 55 is fixedly sleeved at the front, the micro stepping motor is connected with an external power supply through a lead, and the output end of the micro stepping motor is provided with a driving gear 56 meshed with the driven gear 55;

as shown in fig. 4: the heating device 9 comprises three groups of heating pipes 91, supports 92 are uniformly arranged at the rear ends of the three groups of heating pipes 91, bolts are arranged on the supports 92, screw holes matched with the bolts are formed in the inner wall of the denitration bin 12, heating wires 93 are arranged in the inner cavities of the three groups of heating pipes 91, connecting wires 94 are connected to the left sides of the three groups of heating wires 93, the other ends of the connecting wires 94 are connected with the heating controller 8, and the heating temperature of the heating device 9 can be conveniently controlled through the heating controller 8;

as shown in fig. 3: a fan-shaped transparent window is arranged at the top of the outer wall of the front side of the spherical shell 51, so that the rotating angle of the fan-shaped valve 53 inside can be conveniently observed, the flow control can be conveniently controlled, and a scale strip is arranged on the transparent window;

as shown in fig. 1: the number of the denitration bins 12 is four, and the outer wall of the front side of the multi-bin SCR reactor 6 is provided with a turnover bin door corresponding to the denitration bins 12, the utility model discloses in not limited to four denitration bins 12 given in the specific implementation part, set up according to the actual need, then correspond design other systems and structures can;

as shown in fig. 1: the catalyst layer 10 that sets up in the denitration storehouse 12 is two sets of, can see from this, because catalyst layer 10 sets up to two sets of, so convenient and setting cooperate at two-component flow tube 11, and two sets of catalyst layer 10 all along the linear arrangement vertical setting in denitration storehouse 12.

Example (b): when in use, the ammonia water pump conveys the ammonia water in the ammonia water storage tank into the evaporator, the evaporator evaporates the ammonia water in the ammonia water storage tank into ammonia gas, the ammonia gas and air sent by the fan enter the ammonia air mixer for dilution and mixing, then enter the ammonia gas mixer through the ammonia spraying grid, and are uniformly mixed with the smoke gas conducted by the smoke flow equalizing structure 1 in the ammonia gas mixer, the ammonia gas enters the collecting pipe 2 through the connecting pipe, the ammonia gas can enter the inflow branch pipe 3 by opening the control valve 4, the flow control mechanism 5 is arranged, the micro stepping motor is started to drive the driving gear 56 to rotate the driven gear 55, so as to drive the fan-shaped valve 53 to rotate and adjust the feeding caliber of the inflow branch pipe 3, thereby controlling the flow of the ammonia gas entering the denitration bin 12, the ammonia gas passes through the rectifying device 7, the soot blower and the catalyst layer 10 in the denitration bin 12, and finally the smoke gas is sent to the collecting pipe 14 from the rectifying pipe 13 of the denitration bin 12, and then conducted to the flue gas outlet pipe through the manifold 14.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a many storehouses of deNOx systems configuration device, structure (1) flow equalizes including the flue gas, the aqueous ammonia storage tank, the ammonia pump, the evaporimeter, the empty blender of ammonia, spout the ammonia grid, fan and ammonia cigarette blender, the aqueous ammonia storage tank passes through the pipe connection ammonia pump, the ammonia pump passes through the pipe connection evaporimeter, the evaporimeter passes through the empty blender of pipe connection ammonia, the empty blender input of ammonia still is connected with the fan, it flow equalizes structure (1) through the pipe connection flue gas to spout the ammonia grid, it passes through the pipe connection ammonia cigarette blender to spout the ammonia grid, a serial communication port: the ammonia-smoke mixer is communicated with a collecting pipe (2) through a connecting pipe, the bottom of the collecting pipe (2) is uniformly communicated with a flow inlet branch pipe (3), a control valve (4) is arranged on the flow inlet branch pipe (3), the bottom of the flow inlet branch pipe (3) is communicated with a flow control mechanism (5), a flow outlet pipe communicated with the bottom of the flow control mechanism (5) is arranged below the flow outlet pipe, a multi-bin SCR reactor (6) is arranged below the flow outlet pipe, a denitration bin (12) is uniformly arranged in the inner cavity of the multi-bin SCR reactor (6), the denitration bin (12) corresponds to the flow outlet pipe, the bottom of the flow outlet pipe is communicated with the denitration bin (12), a rectifying device (7) is arranged at the top of the denitration bin (12), a heating device (9) is arranged in the inner cavity of the denitration bin (12), the heating device (9) is positioned below the rectifying device (7), and a heating controller (8) matched with the heating device (9, evenly be provided with catalyst layer (10) in denitration storehouse (12), and catalyst layer (10) are located heating device (9) below, the right-hand compressor (15) that is provided with in many storehouses SCR reactor (6), the output of compressor (15) is connected with two sets of shunt tubes (11) through the pipe connection spare, and shunt tubes (11) left end runs through many storehouses SCR reactor (6) and extends to in left side denitration storehouse (12), shunt tubes (11) are located the bottom outer wall in denitration storehouse (12) inner chamber and are provided with the soot blower, and shunt tubes (11) are located catalyst layer (10) top, denitration storehouse (12) bottom is connected with collecting pipe (14) through flow discharge pipe (13).

2. The denitration system multi-bin configuration device of claim 1, wherein: flow control mechanism (5) are including spherical shell (51) that are linked together with influent stream branch pipe (3) and play flow tube, spherical shell (51) front side outer wall is pegged graft and is had pivot (52), and pivot (52) rear end passes through bearing and spherical shell (51) rear side inner wall centre of a circle swing joint, pivot (52) outer wall is provided with fan-shaped valve (53) with influent stream branch pipe (3) matched with, spherical shell (51) left side inner wall leans on the position and the right side inner wall leans on lower position all fixed be provided with fan-shaped valve (53) matched with dog (54), pivot (52) outer wall front end is fixed to be cup jointed driven gear (55), spherical shell (51) front side outer wall bottom is fixed to be provided with miniature step motor, and the miniature step motor output is provided with driving gear (56) with driven gear (55) meshing.

3. The denitration system multi-bin configuration device of claim 1, wherein: heating device (9) are including three heating pipes (91) of group, and three heating pipes (91) rear ends of group evenly are provided with support (92), and are provided with the bolt on support (92), and denitration storehouse (12) inner wall is provided with the screw that matches with the bolt, three groups heating pipe (91) inner chamber all is provided with heater strip (93), and three heater strip (93) of group left sides all are connected with connecting wire (94), and connecting wire (94) other end is connected with heating controller (8).

4. The denitration system multi-bin configuration device of claim 2, wherein: the top of the outer wall of the front side of the spherical shell (51) is provided with a fan-shaped transparent window, and the transparent window is provided with a scale strip.

5. The denitration system multi-bin configuration device of claim 1, wherein: the number of the denitration bins (12) is four, and the outer wall of the front side of the multi-bin SCR reactor (6) is provided with a turnover bin door corresponding to the denitration bins (12).

6. The denitration system multi-bin configuration device of claim 1, wherein: the catalyst layers (10) arranged in the denitration bin (12) are two groups, and the two groups of catalyst layers (10) are vertically arranged in the denitration bin (12) along the linear arrangement.