CN114046378B

CN114046378B - Low-resistance dust collector lifting valve convenient to overhaul

Info

Publication number: CN114046378B
Application number: CN202111434935.7A
Authority: CN
Inventors: 周昊; 周文权; 万一飞
Original assignee: Jiangsu Tianjie Environmental Protection Equipment Co ltd
Current assignee: Jiangsu Tianjie Environmental Protection Equipment Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-09-30
Anticipated expiration: 2041-11-29
Also published as: CN114046378A

Abstract

The invention relates to the field of bag-type dust collectors, in particular to a low-resistance dust collector poppet valve convenient to overhaul. A valve rod fixing sleeve is arranged at a position, corresponding to the valve rod, on the surface of the valve plate component of the poppet valve, facing the valve rod, a valve rod locking bolt penetrates through the fixing sleeve and the valve rod, and the sealing plate is a waist-shaped plate; an anti-closing device and a distance sensor are arranged on the mounting plane of the valve seat, and the anti-closing device comprises a motor and a top block; and a spring is fixed on one side of the upper box shell facing the valve plate assembly and is concentrically arranged with the valve rod. The improved poppet valve has reduced resistance, easy maintenance, increased anti-closing device, no instantaneous closing of the valve plate and certain protection of the dust collector and front end equipment.

Description

Low-resistance dust collector poppet valve convenient to overhaul

Technical Field

The invention relates to the field of bag-type dust collectors, in particular to a low-resistance dust collector poppet valve convenient to overhaul.

Background

The bag-type dust remover has large air volume for treatment, high dust removal efficiency and wide application occasions, and still occupies a leading position in the field of environmental protection dust removal. The dust-containing smoke enters the cloth bag from the outside of the filter bag, the dust is blocked on the outer surface of the filter bag, and the filtered clean smoke is discharged through the lift valve. The pressure difference between the inlet and the outlet of the dust collector rises along with the continuous increase of dust on the surface of the filter bag, when the resistance of the dust collector reaches a set value, the lift valve is closed, the control system sends out an ash cleaning instruction, the pulse valve of the blowing system is opened, and blowing air enters the dust collection chamber from the nozzle to clean the filter bag. The cleaned dry ash falls into an ash hopper at the lower part of the dust remover and is sent into an ash storehouse through an ash removing and conveying system.

At present, most dust remover factories adopt a poppet valve air outlet mode, and a valve plate is driven by the action of a cylinder to move up and down to realize the opening and closing of a valve port. In the prior art, when a cylinder of a lifting valve drives a valve plate to move up and down, large vibration can be generated, so that the valve plate is deformed, the sealing effect of a dust remover is influenced, and the dust removal efficiency is reduced; when the valve plate is damaged, the valve plate can be dismantled only by entering the middle box body, and the operation is complex; in addition, the existing poppet valves have too large resistance, and once the pressure of compressed air is insufficient, the valve plates of all poppet valves are closed instantly due to the negative pressure and suction of the fan, so that the whole equipment cannot work normally, and even the production equipment at the front end is affected.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the low-resistance dust collector poppet valve convenient to overhaul, the resistance of the poppet valve is reduced and the poppet valve is convenient to maintain by improving the structural form of the valve plate assembly, the anti-closing device is additionally arranged, the phenomenon that the valve plate of the poppet valve is closed instantly is effectively avoided, and a certain protection effect is realized on a dust collector and front-end equipment.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a low resistance dust remover poppet valve of convenient maintenance, the poppet valve is fixed on last case casing, includes cylinder, valve plate subassembly, valve rod, disk seat, the cylinder is vertical to be fixed on the cylinder support, the cylinder support is fixed on last case casing. The piston rod of cylinder pass through the adapter sleeve with the valve rod is connected, the valve rod passes go up the case casing and be connected with the valve plate subassembly. The valve plate assembly comprises a guide rod and a sealing plate, the sealing plate faces towards the position, corresponding to the valve rod, on the surface of one side of the valve rod, a fixing sleeve is arranged, the valve rod is sleeved in the fixing sleeve, a valve rod locking bolt is arranged on the fixing sleeve and the valve rod in a penetrating mode, and the central axis of the valve rod locking bolt is parallel to the sealing plate. The guide rod is welded and fixed on the surface of one side, facing the valve rod, of the sealing plate, guide groove assemblies are arranged on two sides of the valve plate assembly, the guide rod is in clearance fit with the guide groove assemblies, and the guide rod moves in the guide groove assemblies along with the expansion and contraction of the cylinder. The sealing plate is a waist-shaped plate, and the valve seat is consistent with the sealing plate in shape.

Furthermore, an anti-closing device and a distance sensor are arranged on the mounting plane of the valve seat, the anti-closing device comprises a motor and a top block, and the top block is a square solid block and is mounted on an output shaft of the motor and can rotate along with the output shaft of the motor. When the top block rotates to the lower part of the valve plate assembly along with the motor, the top block can abut against between the sealing plate and the installation plane of the valve seat. The probe of the distance sensor faces the sealing plate.

Furthermore, a spring is fixed on one side, facing the valve plate assembly, of the upper box shell, the spring and the valve rod are arranged concentrically, and when the valve plate assembly rises to the highest point along with the cylinder, the spring can play a role in buffering the valve plate assembly.

Furthermore, a valve plate reinforcing rib is arranged on the top surface of the sealing plate.

Furthermore, a sealing sleeve is arranged at the connecting part of the valve rod and the upper box shell.

Further, the cylinder is controlled by the solenoid valve, solenoid valve and PLC electric connection, distance sensor, motor all with PLC electric connection.

Compared with the prior art, the invention has the beneficial effects that:

(1) the guide rod and the guide groove assembly can ensure that the valve plate assembly operates more stably, and vibration of the valve plate assembly in the moving process is reduced.

(2) The closing plate is waist type board and disk seat is waist type structure, can effectively reduce the pressure loss of poppet valve department, can not only reduce the fan right the suction of closing plate can also reduce the energy consumption of fan.

(3) The valve rod locking bolt is horizontally arranged on the fixed sleeve and the valve rod in a penetrating mode, the valve plate assembly can be conveniently dismounted in the upper box body, and the operation efficiency is high.

(4) The distance sensor can measure the height of the valve plate assembly, when the height value is too large in height deviation with the set height in the PLC, an alarm is sent out, and meanwhile the motor drives the ejector block to rotate to the valve plate assembly, so that the valve plate assembly is prevented from being closed, and the valve plate assembly is guaranteed not to be closed mistakenly.

(5) The spring can play the cushioning effect to the valve plate subassembly.

Drawings

Fig. 1 is a schematic sectional elevation view of a low resistance dust collector poppet valve for easy maintenance according to the present invention.

Fig. 2 is a front sectional view of the anti-closing apparatus of fig. 1 when the poppet valve is closed.

Fig. 3 is a schematic sectional view along direction a in fig. 1.

Fig. 4 is a schematic view of a part of the enlarged structure at B in fig. 1.

Fig. 5 is a partially enlarged schematic view of a portion C in fig. 1.

Fig. 6 is a partially enlarged schematic view of a portion D in fig. 2.

Fig. 7 is a partially enlarged structural view at E in fig. 3.

In the figure: 1. the air cylinder, 2, the air cylinder support, 3, go up the case casing, 4, the valve plate subassembly, 4.1, the valve plate strengthening rib, 4.2, fixed cover, 4.3, valve rod locking bolt, 4.4, the guide bar, 4.5, the closing plate, 5, the valve rod, 6, the adapter sleeve, 7, the spring, 8, the seal cover, 9, the guide way subassembly, 10, distance sensor, 11, the motor, 12, the kicking block, 13, the solenoid valve, 14, PLC, 15, the disk seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, 3 and 7, the low-resistance dust collector poppet valve convenient to overhaul is fixed on an upper box shell 3 and comprises a cylinder 1, a valve plate assembly 4, a valve rod 5 and a valve seat 15, wherein the cylinder 1 is vertically fixed on a cylinder support 2, and the cylinder support 2 is fixed on the upper box shell 3. The piston rod of the cylinder 1 is connected with the valve rod 5 through a connecting sleeve 6, and the valve rod 5 penetrates through the upper box shell 3 and is connected with the valve plate assembly 4. Valve plate subassembly 4 includes guide bar 4.4 and closing plate 4.5, closing plate 4.5 orientation on the surface of valve rod 5 one side with the position department that valve rod 5 corresponds is equipped with fixed cover 4.2, valve rod 5 cup joints in the fixed cover 4.2, wear to be equipped with valve rod locking bolt 4.3 on fixed cover 4.2 and the valve rod 5, valve rod locking bolt 4.3's axis with closing plate 4.5 parallels. The guide rod 4.4 is welded and fixed on the surface of one side, facing the valve rod 5, of the sealing plate 4.5, guide groove assemblies 9 are arranged on two sides of the valve plate assembly 4, the guide rod 4.4 is in clearance fit with the guide groove assemblies 9, and the guide rod 4.4 moves in the guide groove assemblies 9 along with the expansion and contraction of the air cylinder 1. The sealing plate 4.5 is a waist-shaped plate, and the valve seat 15 is consistent with the shape of the sealing plate 4.5.

As shown in fig. 2, 3, 5, and 6, in practical applications, an anti-closing device and a distance sensor 10 are disposed on a mounting plane of the valve seat 15, the anti-closing device includes a motor 11 and a top block 12, and the top block 12 is a square solid block and is mounted on an output shaft of the motor 11 and can rotate with the output shaft of the motor 11. When the top block 12 rotates with the motor to the lower part of the valve plate assembly 4, the top block 12 can abut between the sealing plate 4.5 and the mounting plane of the valve seat 15. The probe of the distance sensor 10 faces the sealing plate 4.5.

As shown in fig. 4, in practical applications, a spring 7 is fixed on a side of the upper box housing 3 facing the valve plate assembly 4, the spring 7 is concentrically arranged with the valve rod 5, and when the valve plate assembly 4 rises to a highest point along with the cylinder 1, the spring 7 can buffer the valve plate assembly 4.

In practical application, the top surface of the sealing plate 4.5 is provided with a valve plate reinforcing rib 4.1.

In practical application, a sealing sleeve 8 is arranged at the connecting part of the valve rod 5 and the upper box shell 3.

In practical applications, the cylinder 1 is controlled by a solenoid valve 13, the solenoid valve 13 is electrically connected to the PLC14, and the distance sensor 10 and the motor 11 are both electrically connected to the PLC 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 convenient low resistance dust remover poppet valve of overhauing, the poppet valve is fixed on upper box casing (3), including cylinder (1), valve plate subassembly (4), valve rod (5), disk seat (15), its characterized in that: the air cylinder (1) is vertically fixed on an air cylinder support (2), and the air cylinder support (2) is fixed on the upper box shell (3); a piston rod of the air cylinder (1) is connected with the valve rod (5) through a connecting sleeve (6), and the valve rod (5) penetrates through the upper box shell (3) and is connected with the valve plate assembly (4); the valve plate assembly (4) comprises a guide rod (4.4) and a sealing plate (4.5), a fixing sleeve (4.2) is arranged at a position, corresponding to the valve rod (5), on the surface of one side, facing the valve rod (5), of the sealing plate (4.5), the valve rod (5) is sleeved in the fixing sleeve (4.2), valve rod locking bolts (4.3) penetrate through the fixing sleeve (4.2) and the valve rod (5), and the central axis of each valve rod locking bolt (4.3) is parallel to the sealing plate (4.5); the guide rod (4.4) is welded and fixed on the surface of one side, facing the valve rod (5), of the sealing plate (4.5), guide groove assemblies (9) are arranged on two sides of the valve plate assembly (4), the guide rod (4.4) is in clearance fit with the guide groove assemblies (9), and the guide rod (4.4) moves in the guide groove assemblies (9) along with the expansion and contraction of the cylinder (1); the sealing plate (4.5) is a waist-shaped plate, and the valve seat (15) is consistent with the sealing plate (4.5) in shape; a spring (7) is fixed on one side, facing the valve plate assembly (4), of the upper box shell (3), the spring (7) and the valve rod (5) are arranged concentrically, when the valve plate assembly (4) rises to the highest point along with the cylinder (1), the spring (7) can buffer the valve plate assembly (4), an anti-closing device and a distance sensor (10) are arranged on a mounting plane of the valve seat (15), the anti-closing device comprises a motor (11) and a top block (12), and the top block (12) is a square solid block and is mounted on an output shaft of the motor (11) and can rotate along with the output shaft of the motor (11); when the top block (12) rotates with the motor to the position below the valve plate assembly (4), the top block (12) can abut between the sealing plate (4.5) and the mounting plane of the valve seat (15); the probe of the distance sensor (10) faces the sealing plate (4.5).

2. A low drag dust collector poppet valve for ease of service as claimed in claim 1 wherein: and a valve plate reinforcing rib (4.1) is arranged on the top surface of the sealing plate (4.5).

3. A low drag dust collector poppet valve for facilitating service as claimed in claim 1 wherein: and a sealing sleeve (8) is arranged at the connecting part of the valve rod (5) and the upper box shell (3).

4. A low drag dust collector poppet valve for ease of service as claimed in claim 1 wherein: the air cylinder (1) is controlled by an electromagnetic valve (13), the electromagnetic valve (13) is electrically connected with a PLC (14), and the distance sensor (10) and the motor (11) are electrically connected with the PLC (14).