CN111889229A - Electrostatic oil fume removing equipment with hot air generating device - Google Patents

Abstract

The invention discloses an electrostatic oil fume removal device with a hot air generating device, which comprises a hot air generating device for generating hot air. The first main pipe is a flue gas inlet pipe, and the first main pipe is connected to the first branch pipe through a multi-pass joint. The first branch pipe is connected to the first electric valve, the first electric valve is connected to one end of the main body of the range hood, and the other end of the main body of the range hood is connected to the second branch pipe through the second electric valve, and the second branch pipe passes through the multiple pipes. The through joint is connected to the second main pipe, and the second main pipe is a clean air discharge pipe. The invention solves the problems that the filter module in the current electrostatic oil fume removal equipment will be easily blocked, and it is difficult to clean frequently, ensure that the air is fully heated, and can It is guaranteed to provide accurate hot air heat for the oil fume removal equipment, which has the advantages of good cleaning effect, simple maintenance and operation, low comprehensive energy consumption, simple operation and firm structure.

Description

A kind of electrostatic oil fume removal equipment with hot air generating device

technical field

The invention belongs to the technical field of boiler flue gas treatment devices.

Background technique

The textile printing and dyeing industry will emit a large amount of oil fumes in the production process. The most efficient technology to deal with these oil fume is to use an electrostatic oil fume removal system to recover and purify the flue gas. If the flue gas contains a large amount of paraffin, the filter module in the electrostatic fume removal equipment will be easily blocked, resulting in a decrease in the efficiency of the equipment or even stop working. (The flue gas such as paraffin will become solid after being recovered, which will lead to adsorption on the wall of the anode barrel of the filter module, which will soon block the barrel). For this kind of flue gas components that are easy to become solid after recycling, although the electrostatic oil fume removal method is effective, frequent cleaning and maintenance is also a headache. Frequent cleaning of the filter module with caustic soda water not only wastes manpower, but also produces a lot of waste water pollution.

When dealing with this type of flue gas (it is easy to solidify into solid flue gas at room temperature or even below 50 degrees Celsius), the existing oil fume removal system must be technically transformed. Part of the oil fume sticking to the filter module is condensed into solid components, and the temperature of the hot air is controlled, so that the impurities are in a liquid state, which is easy to flow to the dirt collection device.

In recent years, domestic patent databases have published some similar technical reports on oil fume removal devices:

[Application No.] ZL2019204598686, [Name] an electrostatic oil fume removal device, [Publication No.] CN210058618U, discloses an electrostatic oil fume removal device, including a purifier main body, the air outlet end of the purifier main body is provided with an air outlet flange, The end of the air outlet flange away from the main body of the purifier is provided with a rear fire damper, the air inlet end of the main body of the purifier is provided with an air inlet flange, and the end of the air inlet flange away from the main body of the purifier is provided with a front fire damper. The end of the valve away from the flange of the air inlet is connected with a cooling system, but because the device contains a large amount of paraffin in the flue gas composition, it is still easy to cause the problem of clogging of the filter module.

SUMMARY OF THE INVENTION

The invention provides an electrostatic oil fume removal device with a hot air generating device, which has good cleaning effect, low comprehensive energy consumption and long cleaning and maintenance period, and solves the problems that the filter module in the current electrostatic oil fume removal equipment is easily blocked and frequent cleaning is difficult. .

The invention provides an electrostatic oil fume removal device with a hot air generating device, comprising a fume duct for exhausting fume, an electrostatic oil fume removing machine for cleaning the fume, a control electric cabinet for electrical control of the entire equipment, A hot air blower for blowing air also includes a hot air generating device for generating hot air. The flue gas duct includes a first main duct, a first branch duct, a second branch duct, and a second main duct, and the first main duct is flue gas Into the pipeline, the first main pipeline is connected to the first branch pipeline through a multi-way joint, the first branch pipeline is connected to the first electric valve, the first electric valve is connected to one end of the main body of the range hood, and the other end of the main body of the range hood The second branch pipe is connected to the second branch pipe through the second electric valve, the second branch pipe is connected to the second main pipe through a multi-way joint, and the second main pipe is a clean air discharge pipe; the hot air generating device includes an outer box for containing the heating device. , The upper door panel used in conjunction with the outer box body, the inner side of the outer box body is installed with a thermal insulation interlayer, the door panel thermal insulation layer is installed under the upper door panel, the door panel thermal insulation layer and the thermal insulation interlayer in the outer box form a thermal insulation environment, and one end of the outer box is bolted. The fan mounting seat is connected and fixed, and the hot air blower is installed on the fan mounting seat. The air outlet of the hot air blower is connected to the heat transfer tube shell placed in the outer box through the air inlet and the heat transfer tube shell is connected in pairs. And the heating cover with a semi-circular cross section is tightly wrapped, the heating cover is placed in the insulation interlayer in the outer box, the door panel insulation layer is placed above the heating cover, and the inner wall of the heating cover is provided with a heating wire that generates heat, and the heating wire is close to the heat transfer tube. The outer wall of the shell, the heat transfer tube has a heat transfer tube inside the shell, the heat transfer tube is composed of heat transfer fins, and the other end of the heat transfer tube shell is connected with an air outlet connector; the air outlet connector of the hot air generating device is connected to the first hot air duct, A third electric valve is installed in the middle section of the first hot air duct, and the tail end of the first hot air duct is connected to the main body of the range hood of each electrostatic range hood. They are connected by a second hot air duct, and a fourth electric valve is installed in the middle section of the second hot air duct.

Two heat dissipation holes with heat dissipation hole sealing nets are respectively opened on both sides of the outer box body.

The air inlet of the hot air blower is provided with a fan air inlet filter screen.

By adding a hot air generating device to the electrostatic fume removal unit, the present invention can ensure that accurate hot air heat is provided to the oil fume removal equipment, so that the fume material solidified on the filter module of the electrostatic fume removal machine melts into a liquid state under the action of the hot air, and keeps the The liquid liquid with fluidity flows down from the filter module to clean the filter module, avoiding frequent shutdowns for cleaning and maintenance work, and reducing the difficulty of cleaning and maintenance. The heat transfer fins are modularly designed, and the heat transfer fins are assembled into The heat transfer tube surrounds the air 360 degrees for heating, and by using multiple heat transfer tubes, the heating length can be extended, the air residence time can be increased, and the air can be fully heated. It solves the problem that the filter module in the current electrostatic oil fume removal equipment will be easily blocked, and it is difficult to clean frequently. It has the advantages of good cleaning effect, reduced cleaning frequency, low comprehensive energy consumption, easy operation and firm structure.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a front view of the first structure of the present invention.

Fig. 3 is a rear view of the second structure of the present invention.

FIG. 4 is a schematic structural diagram of the hot air generating device of the present invention.

5 is an exploded view of the first structure of the hot air generating device of the present invention.

6 is an exploded view of the second structure of the hot air generating device of the present invention.

Fig. 7 is a front sectional view of the hot air generating device of the present invention.

8 is a structural diagram of a heat transfer tube of the hot air generator of the present invention.

Among them: 1—flue gas pipe, 11—first main pipe, 12—first branch pipe, 13—second branch pipe, 14—second main pipe, 2—electrostatic range hood, 21—first electric valve, 22—the main body of the range hood, 23—the second electric valve, 24—the oil pan, 3—the control cabinet, 4—the hot air generator, 51—the first hot air duct, 52—the third electric valve, 53— Fourth electric valve, 54—second hot air duct, 411—outer box, 412—heat transfer tube shell, 413—air inlet connection reducing diameter, 414—fan mounting seat, 415—hot air blower, 416—upper door panel, 417 —Heating cover, 418—Outlet connector, 419—Heat vent sealing mesh, 4110—Insulation interlayer, 4111—Heat transfer pipe, 4112—Door insulation layer, 4113—Heating wire, 4114—Fan air inlet filter, 4115— Heat transfer sheet.

Detailed ways

The present invention will be further described below with reference to the specific drawings and embodiments.

As shown in Figures 1-8, the present invention mainly includes a flue gas duct 1 for exhausting smoke, an electrostatic range hood 2 for cleaning the flue gas, a control cabinet 3 for electrical control of the entire equipment, and a The hot air blower 415 for blowing air also includes a hot air generating device 4 for generating hot air. The flue gas duct 1 includes a first main duct 11, a first branch duct 12, a second branch duct 13, a second main duct 14, and a first main duct 11. A main pipe 11 is a flue gas inlet pipe, the first main pipe 11 is connected to the first branch pipe 12 through a multi-way joint, the first branch pipe 12 is connected to the first electric valve 21, and the first electric valve 21 is connected to the main body of the range hood One end of 22, the other end of the main body 22 of the range hood is connected to the second branch pipe 13 through the second electric valve 23, the second branch pipe 13 is connected to the second main pipe 14 through a multi-way joint, and the second main pipe 14 is Clean air discharge duct; the hot air generating device 4 includes an outer box 411 for containing heating devices, an upper door panel 416 used in conjunction with the outer box 411, a thermal insulation interlayer 4110 installed on the inner side of the outer box 411, and a door panel thermal insulation layer 4112 Installed under the upper door panel 416, the door panel thermal insulation layer 4112 and the thermal insulation interlayer 4110 in the outer box 411 form a thermal insulation environment, one end of the outer box 411 is bolted and fixedly installed with a fan mount 414, and the hot air blower 415 is mounted on the fan mount 414. Above, the air outlet of the hot air blower 415 is connected to the heat transfer tube casing 412 placed in the outer box 411 through the air inlet connection reducing diameter 413, and the outside of the heat transfer tube casing 412 is used in pairs. The heating cover 417 is placed in the insulation interlayer 4110 in the outer box 411, the door panel insulation layer 4112 is placed above the heating cover 417, and the inner wall of the heating cover 417 is provided with a heating wire 4113 that generates heat, and the heating wire 4113 is close to the heat transfer tube The outer wall of the shell 412, the heat transfer tube shell 412 has a heat transfer tube 4111 inside, the heat transfer tube 4111 is composed of heat transfer fins 4115, and the other end of the heat transfer tube shell 412 is connected with an air outlet connector 418; the air outlet of the hot air generating device 4 The connector 418 is connected to the first hot air duct 51, a third electric valve 52 is installed in the middle of the first hot air duct 51, and the tail end of the first hot air duct 51 is connected to the main body 22 of the range hood of each electrostatic range hood 2. The range hood main bodies 22 of the two adjacent electrostatic range hoods 2 are connected by a second hot air duct 54 , a fourth electric valve 53 is installed in the middle section of the second hot air duct 54 , and two sides of the outer box 411 are opened on each side. Two heat dissipation holes with heat dissipation hole sealing nets 419 are provided, and a fan air inlet filter screen 4114 is installed at the air inlet of the hot air blower 415 .

Brief description of the working principle: Use heated clean air to heat the interior of the electrostatic range hood 2, so that the temperature of the attachments on the filter module of the electrostatic range hood 2 reaches a liquid state, but does not reach a gaseous state, so that the dirt flows and achieves cleaning and maintenance. Purpose.

During operation, the flue gas passes through the first main pipe 11 and the plurality of first branch pipes 12 connected to it, enters the interior of the main bodies 22 of the range hood through the first electric valve 21, and passes through the main body 22 of the range hood. The clean air is connected to the second branch pipe 13 through the second electric valve 23, and merged into the second main pipe 14 for discharge. When it is necessary to use hot air to clean the interior of the electrostatic range hood 2, the control cabinet 3 gives When the signal hot air heating device is heated, the heating wire 4113 starts to generate heat, and the heat will be transferred to the heat transfer tube 4111. The thermal insulation layer 4112 of the door panel and the thermal insulation interlayer 4110 in the outer box 411 form a thermal insulation environment, which will isolate the external temperature to prevent heat loss. The heat transfer tube 4111 is heated to a certain temperature, the hot air blower 415 will start to work, and the air will be sent into the heat transfer tube shell 412 placed in the outer box 411 through the air inlet connection variable diameter 413. The heat transfer sheet 4115 is heated and heated, and is sent away from the cabinet of the hot air heating device through the air outlet connector 418, and enters the interior of the main body 22 of the range hood of the electrostatic range hood 2, and the heating wire can be precisely controlled by controlling the electric cabinet 3 4113 Heating power; clean hot air will enter the range hood main body 22 of each electrostatic range hood 2 through the first hot air duct 51 and the third electric valve 52, and the temperature inside the range hood main body 22 will increase. With continuous improvement, the solid attachments located on the filter module inside the processing equipment of the electrostatic range hood 2 will be continuously heated and liquefied, and then naturally flowed and collected into the oil receiving tray 24 of the processing equipment on the electrostatic range hood 2 . The range hood main bodies 22 of the two adjacent electrostatic range hoods 2 are connected by a second hot air duct 54. A fourth electric valve 53 is installed in the middle section of the second hot air duct 54, and the fourth electric valve 53 is opened. The air in the electrostatic range hood 2 can be connected to ensure heat balance. During the process of hot air cleaning the equipment, the fourth electric valve 53 is always kept open, and the fourth electric valve 53 is closed after cleaning.

Claims (3)

1. The utility model provides an electrostatic oil smoke removing equipment with hot-blast generating device, includes flue gas pipeline (1) that is used for discharging fume, is used for carrying out electrostatic oil smoke removing machine (2) of cleaning treatment to the flue gas, is used for whole equipment electrical control's control electricity cabinet (3), is used for hot-blast air-blower (415) of blast air, its characterized in that: the hot air generating device is characterized by further comprising a hot air generating device (4) used for generating hot air, the smoke pipeline (1) comprises a first main pipeline (11), a first branch pipeline (12), a second branch pipeline (13) and a second main pipeline (14), the first main pipeline (11) is a smoke inlet pipeline, the first main pipeline (11) is connected with the first branch pipeline (12) through a multi-way joint, the first branch pipeline (12) is connected with a first electric valve (21), the first electric valve (21) is connected with one end of a range hood main body (22), the other end of the range hood main body (22) is connected with the second branch pipeline (13) through a second electric valve (23), the second branch pipeline (13) is connected into the second main pipeline (14) through the multi-way joint, and the second main pipeline (14) is a clean air outlet pipeline; the hot air generating device (4) comprises an outer box body (411) used for containing a heating device, an upper door plate (416) matched with the outer box body (411) for use, a heat insulation interlayer (4110) is arranged on the inner side of the outer box body (411), a door plate heat insulation layer (4112) is arranged below the upper door plate (416), the door plate heat insulation layer (4112) and the heat insulation interlayer (4110) in the outer box body (411) form a heat insulation environment, one end of the outer box body (411) is fixedly connected with a fan mounting seat (414) through a bolt, a hot air blower (415) is arranged on the fan mounting seat (414), an air outlet of the hot air blower (415) is connected with a reducing pipe (413) through an air inlet and is hermetically connected with a heat transfer pipe shell (412) arranged in the outer box body (411), the outer part of the heat transfer pipe shell (412) is tightly wrapped through a heating cover (417) which is used in pairs and has a semicircular cross section, a door plate insulating layer (4112) is arranged above the heating cover (417), a heating wire (4113) for generating heat is arranged on the inner wall of the heating cover (417), the heating wire (4113) is tightly attached to the outer wall of the heat transfer pipe shell (412), a heat transfer pipe (4111) is arranged inside the heat transfer pipe shell (412), the heat transfer pipe (4111) consists of heat transfer fins (4115), and the other end of the heat transfer pipe shell (412) is connected with an air outlet connector (418); the hot air generating device comprises an air outlet connector (418) of a hot air generating device (4) and is characterized in that a first hot air pipeline (51) is connected, a third electric valve (52) is installed in the middle section of the first hot air pipeline (51), the tail end of the first hot air pipeline (51) is connected to a range hood main body (22) of each electrostatic range hood (2), the range hood main bodies (22) of two adjacent electrostatic range hoods (2) are connected through a second hot air pipeline (54), and a fourth electric valve (53) is installed in the middle section of the second hot air pipeline (54).

2. The electrostatic oil fume removing apparatus with a hot air generating device according to claim 1, characterized in that: two sides of the outer box body (411) are respectively provided with two heat dissipation holes with heat dissipation hole sealing nets (419).

3. The electrostatic oil fume removing apparatus with a hot air generating device according to claim 1, characterized in that: and a fan air inlet filter screen (4114) is arranged at an air inlet of the hot air blower (415).

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