CN203648709U - Electric precipitation electromagnetic vibrating system - Google Patents

Abstract

The utility model relates to an electric precipitation electromagnetic vibrating system which comprises a shell, wherein the shell is fixed above a heat-insulating box, and the shell is internally provided with a coil and an insulating sleeve; the coil is wrapped on the outer wall of the insulating sleeve; the insulating sleeve is internally provided with an electromagnetic hammer, and the bottom surface of the insulating sleeve has a hole which enables the bottom of the electromagnetic hammer to penetrate out of the electromagnetic hammer; a fixed vibrating rod is arranged below the electromagnetic hammer, the fixed vibrating rod is fixed on the heat-insulating box, the upper end and lower end of the fixed vibrating rod are respectively positioned outside and in the heat-insulating box, and the bottom end of the fixed vibrating rod is connected with an electrode plate through an insulating shaft and insulated and isolated from a high-voltage electric field; the heat-insulating box is internally provided with an internal ground wire made of soft metal, and both ends of the internal ground wire are respectively fixed on the heat-insulating box and the lower end of the fixed vibrating rod. The electric precipitation electromagnetic vibrating system disclosed by the utility model can reduce the phenomena of breakage and dropping of the ground wire, enhance the grounding reliability under the condition that the electromagnetic vibrating force is not influenced, prevents the problems of disturbance and damage of high-voltage induction static on elements, namely the coil, a diode, a low-voltage control plate and the like, and can be used for safely and stably operating the electric precipitation.

Description

Electromagnetic rapping system for electric dust removal

technical field

The utility model belongs to the field of electric dust removal, in particular to an electromagnetic rapping system for electric dust removal.

Background technique

Electromagnetic rapping system of electrostatic precipitator includes electromagnetic rapping device and its grounding system on the top of electrostatic precipitator. The electromagnetic rapping device uses electromagnetic force to raise the electromagnetic hammer to a certain height, and then uses the force of the electromagnetic hammer to vibrate the pole plate inside the electrostatic precipitator to shake off the dust adsorbed on the pole plate. The electromagnetic rapping grounding system is to weld the thin steel sheet to the fixed rapping rod in the insulation box of the electrostatic precipitator body, and connect the fixed rapping rod to the insulation box through the thin steel sheet as the grounding wire, so that the fixed rapping rod grounded.

Electromagnetic rapping system of electrostatic precipitator is one of the important equipment of electrostatic precipitator. Whether the electromagnetic rapping system of electrostatic precipitator can operate normally will directly affect the dust removal efficiency of electrostatic precipitator and the normal operation of electrostatic precipitator system. Since the ESP electromagnetic rapping system is insulated and isolated from the high voltage of the electric field through the insulating shaft, it is necessary to eliminate the influence of the induced high voltage generated by the electromagnetic rapping device on the ESP electromagnetic rapping system.

However, at present, the grounding wire connected to the fixed rapping rod between the pole plate inside the electrostatic precipitator and the electromagnetic hammer is easy to fall off, causing the grounding system to be damaged. After falling off, the fixed rapping rod is charged, and the electromagnetic hammer penetrates the electromagnetic rapping device. The insulating sleeve, thereby discharging the shell of the electromagnetic rapping device, causing damage to the insulating sleeve, and then causing the power supply of the electromagnetic rapping device to trip. At the same time, the existing electromagnetic rapping grounding system has the problem of inappropriate selection of grounding wires. Common carbon steel with a thickness of 1mm is used as the grounding wire, which has poor flexibility, high strength, and poor corrosion resistance, and is connected by welding. Because the steel sheet is too thin, and affected by the welding process and the long-term effect of electromagnetic rapping force, most grounding wires break and fall off at the welding point during the operation of the electrostatic precipitator. When the electrostatic precipitator is in operation, the staff cannot enter the incubator for inspection and maintenance, which will cause high voltage in the electric field to affect the secondary system of the electrostatic precipitator. The coil of the beater, the burnout of the secondary tube and even the low-voltage vibration system will affect the safe and stable operation of the electrostatic precipitator system and the dust removal effect.

Utility model content

The purpose of the utility model is to provide an electromagnetic rapping system for electric dust removal, which can reduce the breakage and falling off of the grounding wire, so that the electric dust removal can run safely and stably.

In order to achieve the above object, the technical solution adopted by the utility model is:

An electromagnetic rapping system for electric dust removal, comprising a casing, the casing is fixed above the incubator; a coil and a vertical insulating sleeve are arranged inside the casing, and the coil is wrapped on the outer wall of the insulating sleeve, and an insulating layer is arranged on the outer side of the coil; The sleeve is provided with a vertical electromagnetic hammer that can move up and down in the insulating sleeve. The bottom surface of the insulating sleeve is provided with a hole that allows the bottom of the electromagnetic hammer to pass through it; The rapping rod is fixed on the incubator, and the upper end and the lower end of the fixed rapping rod are respectively located outside and inside the incubator. The high-voltage electric field in the incubator is insulated and isolated; the incubator is provided with an internal ground wire made of soft metal, and the two ends of the internal ground wire are respectively fixed on the incubator and the lower end of the fixed rapping rod.

The two ends of the internal grounding wire are respectively provided with wire lugs, and the lower end of the fixed rapping rod and the inner wall of the incubator are respectively fixed with screw rods, and each wire lug is respectively sleeved on a screw rod, and the wire lugs are fixed on the Screw, so that the two ends of the internal grounding wire are respectively fixed on the incubator and the lower end of the fixed rapping rod.

The incubator is fixed with a second mount; the fixed rapping bar is fixed on the incubator through the second mount; the second mount is fixed with the first mount, and the shell is fixed on the second mount through the first mount. on the stand.

An external ground wire is arranged outside the incubator, one end of the external ground wire is fixed on the upper end of the fixed rapping rod, and the other end of the external ground wire is fixed on the incubator, the first fixed frame or the second fixed frame.

The external grounding wire and the internal grounding wire are made of 10mm ² or 16mm ² interwoven annealed copper wires.

The external grounding wire is made of soft metal, the two ends of the external grounding wire are respectively provided with wire lugs, the upper end of the fixed rapping rod is fixed with a screw rod, and the outer wall of the incubator, the first fixed frame or the second fixed frame is also fixed There are screw rods, and each wire lug is set on a screw rod respectively, and the wire lugs are fixed on the screw rod through nuts, so that one end of the external grounding wire is fixed on the upper end of the fixed rapping rod, and the other end is fixed on the incubator. fixed frame or a second fixed frame.

The screw rod is a galvanized screw rod;

The first fixing frame and the second fixing frame are made of galvanized steel pipe, and an anti-corrosion layer is provided on the inner wall of the galvanized steel pipe.

The electromagnetic hammer, the fixed rapping rod and the insulating shaft are coaxial; the bottom end of the fixed rapping rod and the top end of the insulating shaft are connected through a connecting sleeve; the bottom end of the insulating shaft is provided with a porcelain sleeve, and the pole plate is arranged below the porcelain sleeve.

The bottom of the insulating sleeve protrudes from the bottom surface of the housing, and the length of the part of the insulating sleeve protruding from the bottom surface of the housing is 12-15 mm.

The thickness of the part of the insulating sleeve protruding from the bottom surface of the shell is 2.5-4.5 mm, and the thickness of the insulating sleeve in the remaining part is 5-7 mm.

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

In the electromagnetic rapping system for electrostatic precipitator provided by the utility model, an internal grounding wire made of soft metal is arranged in the insulation box, and the two ends of the internal grounding wire are respectively fixed on the insulation box and the lower end of the fixed rapping rod. Since the utility model changes the internal grounding wire into a soft connection, it can reduce the occurrence rate of fracture and shedding of the welding place that is easy to occur when using thin steel sheet welding as the grounding wire in the prior art, and it can be used without electromagnetic rapping force. In the case of impact, increase the reliability of the electromagnetic rapping grounding system to prevent the high-voltage induced static electricity from interfering with and damaging low-voltage components such as coils, diodes, and low-voltage control boards due to the disconnection of the electromagnetic rapping grounding system, thereby making the electric Dust removal can run safely and stably.

Furthermore, in the present invention, an external grounding wire is provided outside the incubator, and the external grounding wire also adopts a soft connection to ground the fixed rapping rod, which can reduce the incidence of breakage and falling off of the external grounding wire. Moreover, adding an external grounding wire on the basis of the internal grounding wire is equivalent to adding double insurance to the electromagnetic rapping grounding system, so that when the internal grounding wire is disconnected, the grounding work can be completed by relying on the external grounding wire. At the same time, The external grounding wire can be inspected, maintained and repaired conveniently during the operation of the electrostatic precipitator, which greatly increases the reliability of the electromagnetic rapping grounding system and enables the electric precipitator to operate safely and stably.

Further, in the utility model, the inner and outer grounding wires adopt 10mm ² or ^16mm interwoven annealed copper wires, and the two ends of annealed copper wires are provided with wire lugs; There is a galvanized screw rod, and the wire lug is put on the galvanized screw rod and fastened with a nut to complete the grounding. In this way, the inner and outer grounding wires can be easily replaced without welding, which is convenient for daily maintenance and improves the safety and stability of the electromagnetic rapping grounding system. Personnel can enter the incubator to easily replace the internal grounding wire. The use of 10mm ² or 16mm ² interwoven annealed copper wire has high safety performance, and the galvanized screw has anti-corrosion function. It can be firmly welded on the fixed rapping rod, insulation box, first, On the second fixed frame, the welding strength is improved, thereby improving the reliability of the electromagnetic rapping grounding system. The first and second fixing frames are made of galvanized steel pipes. There is an anti-corrosion layer inside the galvanized steel pipes, which can prevent corrosion from causing water to enter the insulated box, thereby breaking down the insulating shaft.

Further, in the utility model, the bottom of the insulating sleeve protrudes from the bottom surface of the housing, and the thickness of the part of the insulating sleeve protruding from the bottom surface of the housing is 2.5-4.5mm, and the thickness of the insulating sleeve of the rest is 5-7mm. The thickness difference makes the insulation The sleeve can be stuck on the bottom surface of the shell without falling out from the shell, and the length of the protruding part is as long as 12-15 mm, which can strengthen the insulation performance of the protruding part. Therefore, the utility model can eliminate the problem of weak insulation at the bottom opening of the insulating sleeve, avoid the damage of the insulating sleeve caused by the electromagnetic hammer to the shell, prolong the life of the electromagnetic rapping device, and ensure the normal and stable operation of the electromagnetic rapping device, thereby Make electrostatic precipitator safe and stable operation.

Description of drawings

Fig. 1 is a structural schematic sectional view of the utility model;

Fig. 2 is a partial enlarged view of the utility model;

Among them: 1 is the shell, 2 is the coil, 3 is the insulating sleeve, 4 is the electromagnetic hammer, 5 is the first fixed frame, 6 is the second fixed frame, 7 is the external ground wire, 8 is the insulation box, and 9 is the fixed vibration Rod, 10 is a connecting sleeve, 11 is an insulating shaft, 12 is a porcelain sleeve, 13 is an internal grounding wire, 14 is a pole plate, 15 is a screw rod, 16 is a nut, and 17 is a wire lug.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Fig. 1 and Fig. 2, the utility model comprises a shell 1 and an incubator 8, a second fixed frame 6 is fixed on the incubator 8, a first fixed frame 5 is fixed on the second fixed frame 6, and the shell 1 is fixed by the first The frame 5 is fixed on the second fixed frame 6, so that the outer shell 1 is fixed above the incubator 8. The first fixing frame 5 and the second fixing frame 6 are made of galvanized steel pipe, and an anti-corrosion layer is provided on the inner wall of the galvanized steel pipe. The shell 1 is provided with a coil 2 and a vertical insulating sleeve 3, and the coil 2 is wrapped on the outer wall of the insulating sleeve 3 and fixed with a glass ribbon. The outermost layer of the coil 2 is wrapped with insulating paper as an insulating layer; the bottom of the insulating sleeve 3 extends The length of the part protruding from the bottom surface of the shell 1 and the insulating sleeve 3 protruding from the bottom surface of the shell 1 is 12-15mm. The thickness of the part of the insulating sleeve 3 protruding from the bottom surface of the shell 1 is 2.5-4.5 mm, and the thickness of the insulating sleeve 3 in the remaining part is 5-7 mm. The insulating sleeve 3 is provided with a vertical electromagnetic hammer 4 that can move up and down in the insulating sleeve 3, and the bottom surface of the insulating sleeve 3 is provided with a hole that allows the bottom of the electromagnetic hammer 4 to pass through; the bottom of the electromagnetic hammer 4 is provided with The fixed rapping rod 9 is fixed on the incubator 8 through the second fixing frame 6, and the upper end and the lower end of the fixed rapping rod 9 are respectively located outside and inside the incubator 8. The bottom end of the fixed rapping rod 9 is connected to the pole plate 14 through the insulating shaft 11, and the fixed rapping rod 9 is insulated and isolated from the high-voltage electric field in the incubator 8 through the insulating shaft 11; the electromagnetic hammer 4, the fixed rapping rod 9 and the insulating The shaft 11 is coaxial; wherein the bottom end of the fixed rapping rod 9 is connected to the top end of the insulating shaft 11 through a connecting sleeve 10; the bottom end of the insulating shaft 11 is provided with a ceramic sleeve 12 for heating, and the pole plate 14 is arranged on Set of 12 below. The incubator 8 is provided with an internal grounding wire 13 made of interwoven annealed copper wire of 10 mm ^or 16 mm ^2. The two ends of the annealed copper wire of the internal grounding wire 13 are respectively provided with wire lugs 17, and the lower end of the fixed rapping rod 9 and the Galvanized screw rods 15 are respectively fixed on the inner wall of the incubator 8, and each wire lug 17 is respectively set on a galvanized screw rod 15, and the wire lug 17 is fixed on the galvanized screw rod 15 through a nut 16, thereby connecting the internal ground wire The two ends of 13 are respectively fixed on the incubator 8 and the lower end of the fixed rapping rod 9. An external grounding wire 7 made of interwoven annealed copper wire ^of 10 mm or ¹⁶ mm is provided outside the incubator 8, and the two ends of the annealed copper wire of the external grounding wire 7 are respectively provided with wire lugs 17, and the upper end of the fixed rapping rod 9 is fixed There are galvanized screw rods 15. According to the actual situation, the galvanized screw rods 15 are welded on the outer wall of the incubator 8, the first fixed frame 5 or the second fixed frame 6, and each wire lug 17 is respectively enclosed within a galvanized screw rod 15. And the lug 17 is fixed on the galvanized screw rod 15 through the nut 16, thereby one end of the external grounding wire 7 is fixed on the upper end of the fixed rapping rod 9, and the other end is fixed on the incubator 8, the first fixed frame 5 or the second On the fixed frame 6.

When the utility model is in use, the magnetic force is generated after the coil 2 is energized, and the electromagnetic hammer 4 is lifted to the top of the insulating sleeve 3. After the coil 2 is powered off, the magnetic force disappears, and the electromagnetic hammer 4 falls freely in the insulating sleeve 3 under the action of gravity, and the electromagnetic hammer 4 The bottom of the hammer 4 protrudes from the bottom of the insulating sleeve 3 and hits the upper surface of the fixed rapping rod 9 to generate vibration, which is transmitted to the pole plate 14 through the connecting sleeve 10, insulating shaft 11 and porcelain sleeve 12 in turn, thereby The dust on the pole plate 14 is shaken off. In this process, the insulating sleeve 3 plays the role of insulation protection, avoiding the damage of the insulating sleeve caused by the discharge of the electromagnetic hammer to the shell; the internal grounding wire 13 and the external grounding wire 7 play a grounding role, which can prevent high-voltage induced static electricity from causing damage to the coil, Interference and damage of low-voltage components such as diodes and low-voltage control boards, so that the electrostatic precipitator can operate safely and stably.

Claims (10)

1. an electric precipitation electromagnetic rapping system, is characterized in that: comprise shell (1), shell (1) is fixed on the top of incubator (8); In shell (1), be provided with coil (2) and vertical insulation sleeve (3), and coil (2) is wrapped on the outer wall of insulation sleeve (3), the outside of coil (2) is provided with insulating barrier; In insulation sleeve (3), be provided with the vertical electromagnetic hammer (4) that can move up and down in insulation sleeve (3), on the bottom surface of insulation sleeve (3), offer the hole of the bottom that can make electromagnetic hammer (4) from wherein passing; The below of electromagnetic hammer (4) is provided with fixing vibrating rod (9), fixing vibrating rod (9) is fixed on incubator (8), and the top and bottom of fixing vibrating rod (9) lay respectively at the outside and inner of incubator (8), the bottom of fixing vibrating rod (9) is connected with pole plate (14) by shaft insulation (11), fixes vibrating rod (9) by the interior high voltage electric field insulation isolation of shaft insulation (11) and incubator (8) simultaneously; In incubator (8), be provided with the inside earth connection (13) of being made by soft metal, and the two ends of inner earth connection (13) are separately fixed at incubator (8) above and the lower end of fixing vibrating rod (9).

2. electric precipitation electromagnetic rapping system according to claim 1, it is characterized in that: the two ends of described inside earth connection (13) are respectively equipped with line nose (17), on the fixing lower end of vibrating rod (9) and the inwall of incubator (8), be fixed with respectively screw rod (15), each line nose (17) is enclosed within respectively on a screw rod (15), and it is upper by nut (16), line nose (17) to be fixed on to screw rod (15), thereby the two ends of inner earth connection (13) are separately fixed to incubator (8) above and the lower end of fixing vibrating rod (9).

3. electric precipitation electromagnetic rapping system according to claim 1 and 2, is characterized in that: on described incubator (8), be fixed with the second fixed mount (6); Fixing vibrating rod (9) is fixed on incubator (8) by the second fixed mount (6); On the second fixed mount (6), be fixed with the first fixed mount (5), shell (1) is fixed on the second fixed mount (6) by the first fixed mount (5).

4. electric precipitation electromagnetic rapping system according to claim 3, it is characterized in that: the outer external ground line (7) that is provided with of described incubator (8), one end of external ground line (7) is fixed on the upper end of fixing vibrating rod (9), and the other end of external ground line (7) is fixed on incubator (8), the first fixed mount (5) or the second fixed mount (6).

5. electric precipitation electromagnetic rapping system according to claim 4, is characterized in that: described external ground line (7) and inner earth connection (13) adopt 10mm ²or 16mm ²the annealed copper wire that interweaves make.

6. electric precipitation electromagnetic rapping system according to claim 4, it is characterized in that: described external ground line (7) is made up of soft metal, the two ends of external ground line (7) are respectively equipped with line nose (17), the upper end of fixing vibrating rod (9) is fixed with screw rod (15), the outer wall of incubator (8), on the first fixed mount (5) or the second fixed mount (6), be also fixed with screw rod (15), each line nose (17) is enclosed within respectively on a screw rod (15), and by nut (16), line nose (17) is fixed on screw rod (15), thereby one end of external ground line (7) is fixed on to the upper end of fixing vibrating rod (9), the other end is fixed on incubator (8), on the first fixed mount (5) or the second fixed mount (6).

7. electric precipitation electromagnetic rapping system according to claim 6, is characterized in that: described screw rod (15) is zinc-plated screw rod;

Described the first fixed mount (5) and the second fixed mount (6) adopt coating steel pipe to make, and the inwall of coating steel pipe is provided with anticorrosive coat.

8. electric precipitation electromagnetic rapping system according to claim 1 and 2, is characterized in that: described electromagnetic hammer (4), fixing vibrating rod (9) and shaft insulation (11) are coaxial; The bottom of described fixing vibrating rod (9) is connected by adapter sleeve (10) with the top of shaft insulation (11); The bottom of described shaft insulation (11) is provided with the insulator (12) for heating, and pole plate (14) is arranged on the below of insulator (12).

9. electric precipitation electromagnetic rapping system according to claim 1 and 2, is characterized in that: the bottom surface of shell (1) is stretched out in the bottom of described insulation sleeve (3), and the length that insulation sleeve (3) stretches out the part of shell (1) bottom surface is 12～15mm.

10. electric precipitation electromagnetic rapping system according to claim 9, is characterized in that: the thickness that described insulation sleeve (3) stretches out the part of shell (1) bottom surface is 2.5～4.5mm, and the thickness of the insulation sleeve (3) of remainder is 5～7mm.

Images