CN211537260U

CN211537260U - Photocatalytic reactor

Info

Publication number: CN211537260U
Application number: CN201921905673.6U
Authority: CN
Inventors: 李海波; 胡莉; 董明君; 陈帅; 刘雨萱
Original assignee: Hubei University
Current assignee: Hubei University
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-09-22
Anticipated expiration: 2029-11-06

Abstract

The utility model relates to a photocatalytic reactor includes the shell, the lid, a rotating shaft, the import pipeline, export pipeline and a plurality of carrier net, the shell top is uncovered, the lid can be dismantled and connect in the shell top, import pipeline and export pipeline communicate respectively with shell both sides and its the central axis collineation between them, the pivot level sets up in the shell and its both ends rotate with the shell respectively and are connected, the central axis of pivot is parallel with the central axis of import pipeline, carrier net on-line coating has photocatalyst, the shell is equipped with drive arrangement outward and rotates for the drive pivot, still be equipped with the photocatalytic component in the pivot and be used for catalytic reaction, be equipped with connecting device in the pivot, connecting device makes carrier net and photocatalytic component can dismantle to be connected on the circumference of pivot. Has the advantages that: the contact area of the gas and the photocatalyst is increased, the retention time of pollutants in the reactor is prolonged, and the photocatalytic efficiency can be obviously improved.

Description

Photocatalytic reactor

Technical Field

The utility model relates to a waste gas treatment field especially relates to a photocatalytic reactor.

Background

The photocatalysis technology is an efficient and safe waste gas purification technology which is gradually accepted by academic circles at home and abroad, and the basic principle is as follows: the photocatalyst generates electrons and holes on the surface under the irradiation of visible light/ultraviolet light, one part of the electrons and the holes directly react with volatile organic compounds, and the other part of the electrons and the holes react with water molecules to generate hydroxyl radicals which then react with the organic compounds to purify and remove pollutants. The photocatalysis reaction can be carried out at normal temperature and normal pressure, and the semiconductor photocatalyst has stable chemical property, can be repeatedly used and has long service life. The photocatalysis technology embodies huge development potential in the aspect of environmental protection and has very good market prospect.

Research shows that the contact area of the photocatalyst and gas is increased, the retention time of pollutants in a reactor is prolonged, and the purification efficiency of waste gas can be effectively increased. However, the existing photocatalytic reactor has small contact area of photocatalytic reaction and short retention time of pollutants in the reactor, so that the photocatalytic purification efficiency is low, and the photocatalytic reactor is not beneficial to popularization.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a photocatalysis reactor is provided, photocatalysis purification efficiency can be improved.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a photocatalytic reactor includes shell, lid, pivot, import pipeline, export pipeline and a plurality of carrier net, the shell top is uncovered, the lid can dismantle connect in the shell top, import pipeline with export pipeline respectively with shell both sides intercommunication and its the central axis collineation between them, the pivot level set up in the shell and its both ends respectively with the shell rotates to be connected, the central axis of pivot with the central axis of import pipeline is parallel, the carrier net is coated with photocatalyst on the net, the shell is equipped with drive arrangement outward and is used for the drive the pivot rotates, still be equipped with the photocatalytic component in the pivot and be used for catalytic reaction, be equipped with connecting device in the pivot, connecting device makes the carrier net with the photocatalytic component can dismantle connect in on the circumference of pivot.

The utility model has the advantages that: the environment is purified by the photocatalysis technology, the reaction condition is mild, and no secondary pollution is caused. The photocatalyst has the advantages of simple manufacturing process, low production cost, good chemical stability and long service life. Is beneficial to industrial application.

The multiple groups of carrier assemblies are arranged in parallel, the reaction carrier gas flows along the direction vertical to the carrier assemblies, the contact area of the gas and the photocatalyst is increased, the rotating speed of the rotating assemblies is adjustable, the retention time of pollutants in the reactor is prolonged, and the photocatalytic efficiency can be obviously improved.

The visible/ultraviolet light assembly can be set to be visible or ultraviolet light irradiation according to actual needs, and the visible/ultraviolet light assembly and the carrier assembly are placed in parallel, so that the utilization rate of light energy is effectively increased; the number of the components is adjustable, and the light can cover the whole reactor.

The reactor has the advantages of less material consumption, simple process, low production cost and easy maintenance and replacement.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the shell is the open cuboid cavity structure in top, the lid is the open cuboid cavity structure in bottom, the lid with the shell matches is in order to open and close the shell.

The beneficial effect who adopts above-mentioned further scheme is that, the lid with the shell matches is in order to open and close the shell, and the lid that opens that can be convenient operates, and the shell that also can be quick closes begins work.

Furthermore, the two outer side walls of the cover body and the two outer side walls of the shell are respectively and fixedly connected with a cover body locking plate and a shell locking plate, the cover body locking plate and the shell locking plate further comprise two bolts and two nuts, each bolt sequentially penetrates through the corresponding cover body locking plate and the shell locking plate, and each nut is in threaded connection with the corresponding penetrating end of the bolt.

Adopt above-mentioned further scheme's beneficial effect be, lid locking plate and shell locking plate cooperate the structure of bolt and nut, connect firmly, convenient durable.

Further, still include the sealing strip, the shell with the seal groove has been seted up to the contact department of lid, the sealing strip inlays to be located in the seal groove.

Adopt above-mentioned further scheme's beneficial effect is that, the sealing strip inlays to be located make the shell with when the lid is connected waste gas does not reveal in the seal groove.

Further, every carrier net is 60 fan-shaped netted, every six carrier net is a set of, and the multiunit carrier net is followed the central axis direction evenly spaced of pivot sets up, six in every group carrier net is followed the circumferencial direction evenly spaced of pivot sets up.

The beneficial effect who adopts above-mentioned further scheme is that, even arrangement like this for the carrier net has all been distributed to the round in the pivot, and the carrier net is equipped with the multilayer along pivot central direction, and reaction area obviously increases.

Further, the photocatalysis subassembly includes a plurality of fluorescent tubes, the carrier net with the fluorescent tube one-to-one, per six the fluorescent tube is a set of, and the multiunit the fluorescent tube is followed the even spaced setting of the central axis direction of pivot, six in every group the fluorescent tube is followed the even spaced setting of circumferencial direction of pivot, every the fluorescent tube is located rather than corresponding keeping away from of carrier net import pipeline department.

The beneficial effect of adopting above-mentioned further scheme is that, each fluorescent tube carries out the photocatalysis to one of them carrier net alone, and catalytic efficiency is high.

Furthermore, the connecting device comprises a support, a carrier net fixing plate, a lamp tube fixing plate, a fixing bolt and a fixing nut, wherein the support, the carrier net fixing plate, the lamp tube fixing plate, the fixing bolt and the fixing nut are all provided with a plurality of fixing bolts and are in one-to-one correspondence, the carrier net fixing plate and the lamp tube fixing plate are respectively in one-to-one correspondence with the carrier net and the lamp tube, and the support is respectively arranged along the central axis direction of the rotating shaft and the circumferential direction thereof at intervals; each support is fixedly connected to the circumference of the rotating shaft, a support groove is formed in each support, one end of each carrier net fixing plate is fixedly connected with the bottom of the corresponding carrier net, the other end of each carrier net fixing plate is embedded into the corresponding support groove, the fixing bolt sequentially penetrates through the supports and the carrier net fixing plates, and the fixing nut is in threaded connection with the penetrating end of the fixing bolt to complete connection of the carrier nets; one end of each lamp tube fixing plate is fixedly connected with the bottom of the corresponding lamp tube, the other end of each lamp tube fixing plate is embedded into the corresponding support groove, the fixing bolt sequentially penetrates through the support and the corresponding lamp tube fixing plate, and the fixing nut is in threaded connection with the penetrating end of the fixing bolt to complete connection of the lamp tubes.

The beneficial effect who adopts above-mentioned further scheme is for carrier net and fluorescent tube can be dismantled and connect in the pivot, and the installation of being convenient for is dismantled, also is convenient for change.

Further, drive arrangement includes gear wheel, pinion, motor and motor support, the motor support is located the other and its bottom fixed connection of shell is subaerial, motor fixed connection in motor support top, the one end of pivot is stretched out the shell, the gear wheel with the coaxial fixed connection in the end that stretches out of pivot, the pinion with the coaxial fixed connection in motor shaft of motor, the gear wheel with pinion intermeshing.

Adopt above-mentioned further scheme's beneficial effect is that the motor passes through gear wheel and pinion and gives the pivot with power transmission to drive the pivot and rotate.

Drawings

Fig. 1 is a schematic structural diagram of a photocatalytic reactor provided by the present invention;

FIG. 2 is a right side view of a photocatalytic reactor of the type shown in FIG. 1;

FIG. 3 is a schematic view showing the connection between the housing and the cover of a photocatalytic reactor shown in FIG. 1;

FIG. 4 is a schematic view showing the connection of the carrier net, the lamp tube and the rotating shaft of the photocatalytic reactor shown in FIG. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a shell, 2, a cover body, 3, a rotating shaft, 4, a support, 5, a carrier net, 6, a lamp tube, 7, an inlet pipeline, 8, an outlet pipeline, 9, a carrier net fixing plate, 10, a fixing bolt, 11, a sealing strip, 12, a cover body locking plate, 13, a shell locking plate, 14, a bolt, 15, a nut, 16, a fixing nut, 17, a large gear, 18, a small gear, 19, a motor, 20, a motor support, 21, a lamp tube fixing plate, 22 and a support groove.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1-4, a photocatalytic reactor, including shell 1, lid 2, pivot 3, import pipeline 7, export pipeline 8 and a plurality of

carrier net

5, 1 top of shell is uncovered, lid 2 can dismantle connect in 1 top of shell, import pipeline 7 with export pipeline 8 respectively with 1 both sides intercommunication of shell and its the central axis collineation between them, pivot 3 level set up in the shell 1 and its both ends respectively with shell 1 rotates to be connected, the central axis of pivot 3 with the central axis of import pipeline 7 is parallel, the coating has photocatalyst on the carrier net 5, shell 1 is equipped with drive arrangement outward and is used for the drive pivot 3 rotates, still be equipped with the photocatalytic component on the pivot 3 and be used for catalytic reaction, be equipped with connecting device on the pivot 3, connecting device makes carrier net 5 with the photocatalytic component can dismantle connect in on the circumference of pivot 3.

The shell 1 is the open cuboid cavity structure in top, the lid 2 is the open cuboid cavity structure in bottom, the lid 2 with the shell 1 matches and is in order to open and close the shell 1.

The two outer side walls of the cover body 2 and the two outer side walls of the shell 1 are respectively and fixedly connected with a cover body locking plate 12 and a shell locking plate 13, the two outer side walls of the cover body 2 further comprise two bolts 14 and two nuts 15, each bolt 14 sequentially penetrates through the corresponding cover body locking plate 12 and the shell locking plate 13, and each nut 15 is in threaded connection with the corresponding penetrating end of the bolt 14.

Still include sealing strip 11, shell 1 with the seal groove has been seted up to the contact department of lid 2, sealing strip 11 inlays to be located in the seal groove.

Every carrier net 5 is 60 fan-shaped netted, every six carrier net 5 is a set of, and the multiunit carrier net 5 is followed the even spaced setting in the central axis direction of pivot 3, six in every group carrier net 5 is followed the even spaced setting in the circumferencial direction of pivot 3.

The photocatalysis component comprises a plurality of lamp tubes 6, carrier net 5 with 6 one-to-one of lamp tubes, per six lamp tubes 6 are a set of, and the multiunit lamp tubes 6 are followed the even spaced setting of the central axis direction of pivot 3, six in every group lamp tubes 6 are followed the even spaced setting of the circumferencial direction of pivot 3, every lamp tubes 6 are located rather than corresponding keeping away from of carrier net 5 import pipeline 7 department.

The connecting device comprises a support 4, a carrier net fixing plate 9, a lamp tube fixing plate 21, a fixing bolt 10 and a fixing nut 16, wherein the support 4, the carrier net fixing plate 9, the lamp tube fixing plate 21, the fixing bolt 10 and the fixing nut 16 are all provided with a plurality of parts and are in one-to-one correspondence, the carrier net fixing plate 9 and the lamp tube fixing plate 21 are in one-to-one correspondence with the carrier net 5 and the lamp tube 6 respectively, and the support 4 is arranged along the central axis direction of the rotating shaft 3 and the circumferential direction thereof at uniform intervals; each support 4 is fixedly connected to the circumference of the rotating shaft 3, a support groove 22 is formed in each support 4, one end of each carrier net fixing plate 9 is fixedly connected with the bottom of the corresponding carrier net 5, the other end of each carrier net fixing plate 9 is embedded into the corresponding support groove 22, the fixing bolt 10 sequentially penetrates through the supports 4 and the carrier net fixing plates 9, and the fixing nut 16 is in threaded connection with the penetrating end of the fixing bolt 10 to complete the connection of the carrier nets 5; one end of each lamp tube fixing plate 21 is fixedly connected with the bottom of the corresponding lamp tube 6, the other end of each lamp tube fixing plate 21 is embedded into the corresponding support groove 22, the fixing bolt 10 sequentially penetrates through the support 4 and the lamp tube fixing plate 21, and the fixing nut 16 is in threaded connection with the penetrating end of the fixing bolt 10 to complete the connection of the lamp tube 6.

Drive arrangement includes gear wheel 17, pinion 18, motor 19 and motor support 20, motor support 20 locates other and its bottom fixed connection of shell 1 is subaerial, motor 19 fixed connection in motor support 20 top, the one end of pivot 3 is stretched out shell 1, gear wheel 17 with the coaxial fixed connection of the end that stretches out of pivot 3, pinion 18 with the coaxial fixed connection of motor shaft of motor 19, gear wheel 17 with pinion 18 intermeshing.

The motor support 20 may also be fixedly connected to the outer side wall of the housing 1, so that the placement position of the housing 1 may not be limited.

The method for coating the photocatalyst comprises the following steps of; the carrier web 5 is put into a solution containing a catalyst and then naturally dried, and then the carrier web 5 is installed into the reactor.

The photocatalyst may be titanium dioxide and the contaminant may be toluene, acetone, or other volatile organic.

The fixed connection referred to in this application may be a bolted connection, a welded connection or an adhesive connection.

The working principle is as follows:

waste gas enters the shell 1 from the inlet pipeline 7, the carrier net 5 is driven by the rotating shaft 3 to rotate, the carrier net 5 firstly contacts with the waste gas, the photocatalyst on the carrier net 5 generates electrons and holes on the surface under the irradiation of visible light/ultraviolet light, a part of the electrons and the holes directly react with volatile organic compounds, a part of the electrons and the holes react with water molecules to generate hydroxyl radicals, and then the hydroxyl radicals react with the organic compounds, so that pollutants in the waste gas are purified and removed, and the purified gas flows out from the outlet pipeline 8; and part of the pollutants which are not ready to react rotate along with the carrier net 5, the carrier net 5 which is contacted with the first rotates to leave the air inlet area, in the rotating process, the pollutants are always reacted with the photocatalyst on the carrier net 5 under the photocatalysis of the lamp tube 6, and the pollutants can be removed through the reaction, when the pollutants rotate to the air inlet area again, the pollutants on the carrier net 5 are in a state after complete reaction, the processes are repeated in sequence, and each carrier net 5 performs the processes, so that the purposes of prolonging the retention time and increasing the contact area of the photocatalyst and the air can be achieved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a photocatalytic reactor, its characterized in that, includes shell (1), lid (2), pivot (3), import pipeline (7), export pipeline (8) and a plurality of carrier net (5), shell (1) top is uncovered, lid (2) can dismantle connect in shell (1) top, import pipeline (7) with export pipeline (8) respectively with shell (1) both sides intercommunication and its the central axis collineation between them, pivot (3) level set up in shell (1) and its both ends respectively with shell (1) rotate to be connected, the central axis of pivot (3) with the central axis of import pipeline (7) is parallel, the coating has the photocatalyst on carrier net (5), shell (1) is equipped with drive arrangement outward and is used for the drive pivot (3) rotates, still be equipped with photocatalytic component on pivot (3) and be used for catalytic reaction, the rotating shaft (3) is provided with a connecting device, and the connecting device enables the carrier net (5) and the photocatalytic component to be detachably connected to the circumference of the rotating shaft (3).

2. A photocatalytic reactor as set forth in claim 1 characterized in that the housing (1) is a rectangular parallelepiped cavity structure with an open top, the cover (2) is a rectangular parallelepiped cavity structure with an open bottom, and the cover (2) is matched with the housing (1) to open and close the housing (1).

3. The photocatalytic reactor according to claim 2, characterized in that a cover locking plate (12) and a housing locking plate (13) are fixedly connected to two outer side walls of the cover (2) and two outer side walls of the housing (1), respectively, and further comprising two bolts (14) and two nuts (15), wherein each bolt (14) sequentially penetrates through the corresponding cover locking plate (12) and the corresponding housing locking plate (13), and each nut (15) is in threaded connection with a penetrating end of the corresponding bolt (14).

4. The photocatalytic reactor as set forth in claim 3 further comprises a sealing strip (11), wherein a sealing groove is formed at a contact position of the housing (1) and the cover body (2), and the sealing strip (11) is embedded in the sealing groove.

5. A photocatalytic reactor as set forth in claim 2 characterized in that each of the carrier nets (5) is a 60 ° fan-shaped net, and each six of the carrier nets (5) is in one group, and a plurality of groups of the carrier nets (5) are arranged at regular intervals in the direction of the central axis of the rotating shaft (3), and six of the carrier nets (5) in each group are arranged at regular intervals in the direction of the circumference of the rotating shaft (3).

6. A photocatalytic reactor as set forth in claim 5 characterized in that said photocatalytic assembly comprises a plurality of lamps (6), said carrier net (5) is in one-to-one correspondence with said lamps (6), every six of said lamps (6) are in one group, a plurality of groups of said lamps (6) are arranged along the central axis direction of said rotating shaft (3) at regular intervals, six of said lamps (6) in each group are arranged along the circumferential direction of said rotating shaft (3) at regular intervals, and each of said lamps (6) is located at the position of said carrier net (5) corresponding thereto far away from said inlet pipeline (7).

7. The photocatalytic reactor as set forth in claim 6, wherein the connecting device comprises a plurality of supports (4), a carrier mesh fixing plate (9), a lamp tube fixing plate (21), a fixing bolt (10) and a fixing nut (16), the supports (4), the carrier mesh fixing plate (9), the lamp tube fixing plate (21), the fixing bolt (10) and the fixing nut (16) are all provided in a one-to-one correspondence, the carrier mesh fixing plate (9) and the lamp tube fixing plate (21) are in one-to-one correspondence with the carrier mesh (5) and the lamp tube (6), and the supports (4) are respectively provided at regular intervals along the central axis direction and the circumferential direction of the rotating shaft (3); each support (4) is fixedly connected to the circumference of the rotating shaft (3), a support groove (22) is formed in each support (4), one end of each carrier net fixing plate (9) is fixedly connected with the bottom of the corresponding carrier net (5), the other end of each carrier net fixing plate (9) is embedded into the corresponding support groove (22), and the fixing bolt (10) sequentially penetrates through the supports (4) and the carrier net fixing plates (9); one end of each lamp tube fixing plate (21) is fixedly connected with the bottom of the corresponding lamp tube (6), the other end of each lamp tube fixing plate (21) is embedded into the corresponding support groove (22), the fixing bolt (10) sequentially penetrates through the support (4) and the lamp tube fixing plate (21), and each fixing nut (16) is in threaded connection with the penetrating end of the corresponding fixing bolt (10) to respectively complete connection of the carrier net (5) and the lamp tube (6).

8. The photocatalytic reactor as set forth in any of claims 1-7, characterized in that the driving device comprises a large gear (17), a small gear (18), a motor (19) and a motor support (20), the motor support (20) is disposed beside the housing (1) and the bottom of the motor support is fixedly connected to the ground, the motor (19) is fixedly connected to the top of the motor support (20), one end of the rotating shaft (3) extends out of the housing (1), the large gear (17) is coaxially and fixedly connected with the extending end of the rotating shaft (3), the small gear (18) is coaxially and fixedly connected with the motor shaft of the motor (19), and the large gear (17) is engaged with the small gear (18).