Manhole door of electric dust collector

Abstract

The utility model provides a manhole door of an electric dust collector, which comprises a manhole door seat, an inner hole and an outer hole are arranged on the manhole door seat, an inner door is arranged at the inner hole, an outer door is arranged at the outer hole, the inner door and the outer door are respectively hinged with the manhole door seat, an inner door frame is arranged at the inner hole, the edge of the inner door is abutted against the inner door frame, and the inner door and the outer door are respectively hinged with the manhole door seat. An outer door frame is arranged at the position of the outer hole, the edge of the outer door abuts against the outer door frame, a plurality of pressing rods are fixed to the inner side of the outer door, the ends, away from the outer door, of the pressing rods abut against the inner door, a plurality of through holes are formed in the edge of the outer door, a plurality of screw holes corresponding to the through holes are formed in the outer door frame, and bolts are arranged in the through holes. And the bolt penetrates through the through hole. According to the utility model, the inner door and the outer door are arranged, and the manhole is sealed through the two doors, so that the sealing degree can be effectively improved; external force is applied to the inner door through the pressing rod of the outer door, so that the inner door is closed, the inner wall can be closed only by closing the outer door, and the operation mode is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust collector equipment and relates to a manhole door for an electric dust collector. Background Art

[0002] Electrostatic precipitators are generally installed in places where high-temperature flue gas is generated. Flue gas often contains high concentrations of sulfur dioxide. After the dust in the flue gas is filtered out by an electrostatic precipitator, the clean flue gas can continue to recover sulfur dioxide for acid production or other chemical products. When the flue gas temperature drops below the dew point, the sulfur trioxide in the flue gas will condense and condense, and the acid mist formed will seriously corrode the equipment and facilities. Therefore, the sealing degree of the manhole door of the electrostatic precipitator is very high. The manhole door is prone to air leakage due to wear during the opening and closing process. At the same time, when cleaning the high-temperature dust in the dust collector, if the negative pressure in the dust collector fluctuates or the amount of ash is large, ash burns are very likely to occur. Therefore, on the one hand, the existing manhole door is prone to air leakage, affecting the operation of the electrostatic precipitator, and at the same time, there is a great risk of ash burns. Utility Model Content

[0003] The purpose of the utility model is to provide an electrostatic precipitator manhole door in view of the problem that the existing electrostatic precipitator manhole door in the background technology is easy to leak air and damage the equipment in the electrostatic precipitator.

[0004] To this end, the present invention adopts the following technical solutions:

[0005] A manhole door for an electrostatic precipitator comprises a manhole door seat, wherein the manhole door seat is provided with an inner hole and an outer hole, the inner hole is provided with an inner door, the outer hole is provided with an outer door, the inner door and the outer door are respectively hinged to the manhole door seat, the inner hole is provided with an inner door frame, the edge of the inner door abuts against the inner door frame, the outer hole is provided with an outer door frame, the edge of the outer door abuts against the outer door frame, a plurality of pressure rods are fixed on the inner side of the outer door, one end of the pressure rod away from the outer door abuts against the inner door, a plurality of through holes are provided at the edge of the outer door, a plurality of screw holes corresponding to the through holes are provided on the outer door frame, bolts are provided in the through holes, and the bolts pass through the through holes.

[0006] Furthermore, the inner door is connected to a ventilation pipe, and the ventilation pipe is provided with a solenoid valve.

[0007] Furthermore, the pressure rod and the outer door are arranged perpendicular to each other.

[0008] Furthermore, a gasket is sleeved on the screw hole.

[0009] Furthermore, a handle for rotating the bolt is provided at the outer end of the bolt.

[0010] Furthermore, sealing strips are provided at the edges of the inner door and the outer door.

[0011] The beneficial effects of the novel use are: an inner door and an outer door are provided, and the manhole is sealed by the two doors, which can effectively improve the sealing degree; an external force is applied to the inner door by the pressure rod of the outer door, so that the inner door is airtight, and the inner wall can be closed by closing the outer door, and the operation method is simple and convenient; a ventilation pipe is provided on the inner door, and gas is introduced into the dust collector in advance before opening, which effectively prevents negative pressure fluctuations; the structure is simple and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the new structure used in this paper;

[0013] Figure 2 A schematic side view of a novel structure is provided for use herein;

[0014] Figure 3 for Figure 1 A partial enlarged view of the middle A part;

[0015] In the figure, 1-manhole door seat, 2-inner hole, 3-outer hole, 4-inner door, 5-outer door, 6-inner door frame, 7-outer door frame, 8-pressure rod, 9-through hole, 10-screw hole, 11-bolt, 12-gasket, 13-handle, 14-ventilation pipe, 15-solenoid valve, 16-sealing strip. DETAILED DESCRIPTION

[0016] The following is a detailed description of the new use with reference to the accompanying drawings:

[0017] like Figure 1-3As shown, a manhole door for an electric dust collector comprises a manhole door seat 1, an inner hole 2 and an outer hole 3 are arranged on the manhole door seat 1, an inner door 4 is arranged at the inner hole 2, and an outer door 5 is arranged at the outer hole 3. By arranging the inner door 4 and the outer door 5, the protective sealing effect can be effectively improved. The inner door 4 and the outer door 5 are arranged in parallel with each other, and the inner door 4 and the outer door 5 are respectively hinged to the manhole door seat 1, an inner door frame 6 is arranged at the inner hole 2, and the edge of the inner door 4 abuts on the inner door frame 6, an outer door frame 7 is arranged at the outer hole 3, and the edge of the outer door 5 abuts on the outer door frame 7. In this embodiment, the inner door 4 and the outer door 5 are both outward-opening, that is, the inner door 4 and the outer door 5 are rotated outward when opened, and a plurality of pressure rods 7 are fixed on the inner side of the outer door 5. In this embodiment, two pressure rods 8 are arranged, and the pressure rods 8 and the outer door 5 are arranged perpendicular to each other. , one end of the pressure rod 8 away from the outer door 5 rests on the inner door 4. When the outer door 5 is closed, the pressure rod 8 can apply external force to the inner door 4, so that the inner door 4 is tightly pressed against the inner door frame 6, thereby blocking the inner hole 2. A plurality of through holes 9 are provided at the edge of the outer door 5. In this embodiment, three through holes 9 are provided, which are respectively located at the three edges of the outer door 5. A plurality of screw holes 10 corresponding to the through holes 9 are provided on the outer door frame 7. Bolts 11 are provided in the through holes 10. The bolts 11 pass through the through holes 9. External force is applied to the outer door 5 through the bolts 11, so that the outer door 5 is tightly pressed against the outer door frame 7. In order to improve the use effect of the bolt 11, a gasket 12 is provided on the bolt 11, and the gasket 12 rests on the outer wall of the outer door 5. The outer end of the bolt 11 is provided with a handle 13 for rotating the bolt 11.

[0018] In order to make the seal more tight, sealing strips 16 are provided at the edges of the inner door 4 and the outer door 5. In order to prevent the negative pressure fluctuation or large amount of ash in the dust collector before cleaning, a vent pipe 14 is connected to the inner door 4, and a solenoid valve 15 is provided on the vent pipe 14. The solenoid valve 15 can be opened before cleaning to allow part of the gas to enter the dust collector to balance the air pressure in the dust collector, effectively preventing the ash burning accident.

[0019] The usage of the utility model is as follows:

[0020] When closing the manhole door, first close the inner door 4 and then the outer door 5. After closing the outer door 5, tighten the bolt 11 through the handle 13. After tightening the bolt 11, the edge of the outer door 5 can be tightly against the outer door frame 7 under the external force of the bolt 11, thereby making the outer door 5 airtight. When the outer door is closed, the pressure rod 8 on the inner wall of the outer door 5 presses the inner door 4 tightly, and applies external force to the inner door 4 to make the inner door 4 airtight. The sealing degree of the manhole is effectively improved by the outer door 5 and the inner door 4, and the sealing effect is good. At the same time, the operation method is simple. When the outer door 5 is closed and locked, the inner door 4 is closed at the same time. When it is necessary to open the manhole door to clean the inside of the electrostatic precipitator, the solenoid valve 15 can be opened first, so that the gas between the inner door 4 and the outer door 5 enters the electrostatic precipitator to place a negative pressure fluctuation, so that a smoke ash burning accident occurs after the inner door 4 and the outer door 5 are opened.

Claims

1. A manhole door for an electrostatic precipitator, characterized in that: The manhole door seat (1) comprises an inner hole (2) and an outer hole (3) on the manhole door seat (1), an inner door (4) is provided at the inner hole (2), an outer door (5) is provided at the outer hole (3), the inner door (4) and the outer door (5) are respectively hinged to the manhole door seat (1), an inner door frame (6) is provided at the inner hole (2), an edge of the inner door (4) abuts against the inner door frame (6), an outer door frame (7) is provided at the outer hole (3), and the outer door (5) is hinged to the manhole door seat (1) The edge of the door (5) abuts against the outer door frame (7); a plurality of pressure rods (8) are fixed on the inner side of the outer door (5); one end of the pressure rod (8) away from the outer door (5) abuts against the inner door (4); a plurality of through holes (9) are provided at the edge of the outer door (5); a plurality of screw holes (10) corresponding to the through holes (9) are provided on the outer door frame (7); bolts (11) are provided in the through holes (9); and the bolts (11) pass through the through holes (9).

2. The manhole door of an electrostatic precipitator according to claim 1, characterized in that: The inner door (4) is connected to a ventilation pipe (14), and a solenoid valve (15) is provided on the ventilation pipe (14).

3. The manhole door of an electrostatic precipitator according to claim 1, characterized in that: The pressure rod (8) and the outer door (5) are arranged perpendicular to each other.

4. The manhole door of an electrostatic precipitator according to claim 1, characterized in that: A gasket (12) is sleeved on the screw hole (10).

5. The manhole door of an electrostatic precipitator according to claim 1, characterized in that: The outer end of the bolt (11) is provided with a handle (13) for rotating the bolt (11).

6. The manhole door of an electrostatic precipitator according to claim 1, characterized in that: Sealing strips (16) are provided at the edges of the inner door (4) and the outer door (5).

Images