CN217583615U

CN217583615U - Multi-fan parallel one-way valve reverse blocking mechanism

Info

Publication number: CN217583615U
Application number: CN202220699136.6U
Authority: CN
Inventors: 孙辉; 桂文轩; 饶青超
Original assignee: Hubei Hongsen Electromechanical Technology Co ltd
Current assignee: Hubei Hongsen Electromechanical Technology Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-10-14
Anticipated expiration: 2032-03-25

Abstract

The utility model relates to a valve hinders contrary technical field, and discloses a parallelly connected check valve of many fans hinders contrary mechanism, including input pipeline, the reposition of redundant personnel head is connected to input pipeline one end, and the input shunt tubes is connected at reposition of redundant personnel head both ends, and the fan is connected to input shunt tubes one end, and the installation hinders contrary mechanism in the input shunt tubes, and the fan is kept away from the one end of input shunt tubes and is connected the output shunt tubes, and filtration equipment is connected to output shunt tubes one end, and installs the check valve on the output shunt tubes axial plane, and output pipeline is connected to filtration equipment one end. This parallelly connected check valve of many fans hinders contrary mechanism makes the bull stick appear not hard up through unscrewing the fixed pin, then rotates the turning handle and can drive the bull stick and rotate, and the bull stick drives and hinders contrary piece and rotate, only needs to rotate the turning handle ninety degrees and just can will hinder contrary piece closure in sealed ring, and corresponding input shunt tubes this moment is in the closed condition for need not to stop all equipment and just can maintain fan or the check valve of damage, still can not cause the flue gas to leak.

Description

Multi-fan parallel one-way valve reverse blocking mechanism

Technical Field

The utility model relates to a valve hinders contrary technical field, specifically is a parallelly connected check valve of many fans hinders contrary mechanism.

Background

The fan is a driven smoke machine which increases the gas pressure and discharges the gas by means of the input mechanical energy. The blower is a short form of habit of gas compression and gas conveying machinery in China, and generally comprises a ventilator, a blower and a wind driven generator. Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and sorting of grains, wind tunnel wind source and air cushion boat inflation and propulsion, etc.

At present, when a plurality of fans are used in parallel, an input pipeline and an output pipeline are shared, when one fan is damaged and stops working, the conveyed smoke can flow back, meanwhile, when one fan is maintained, the machine must be stopped to operate, otherwise, the smoke in the pipeline leaks, and the conveying efficiency is low. In view of this, we propose a multi-fan parallel one-way valve reverse blocking mechanism to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a parallelly connected check valve of many fans hinders contrary mechanism possesses the condition that can not appear carrying the flue gas backward flow when one of them fan appears damaging and shutting down, needn't shut down the operation when overhauing one of them fan simultaneously for but equipment normal operating has solved above-mentioned technical problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a multi-fan parallel one-way valve reverse blocking mechanism comprises an input pipeline, wherein one end of the input pipeline is connected with a flow dividing head, two ends of the flow dividing head are connected with input flow dividing pipes, one end of each input flow dividing pipe is connected with a fan, a reverse blocking mechanism is installed in each input flow dividing pipe, one end, far away from the input flow dividing pipe, of each fan is connected with an output flow dividing pipe, one end of each output flow dividing pipe is connected with filtering equipment, a one-way valve is installed on the axial surface of each output flow dividing pipe, and one end of each filtering equipment is connected with an output pipeline;

hinder contrary mechanism including solid fixed ring, hinder contrary piece, sealing ring, bull stick, sealed tube, turning handle and fixed pin, hinder contrary outside solid fixed ring that sets up of mechanism, the installation hinders contrary piece in the fixed ring, hinder and install sealing ring and bull stick on the contrary piece axial plane, cup joint the sealed tube on the bull stick axial plane, the installation bull stick of bull stick top surface, the fixed pin of installation on the sealed tube axial plane.

Preferably, one end of the flow dividing head, which is far away from the input pipeline, is connected with a plurality of input flow dividing pipes.

Through above-mentioned technical scheme, connect a plurality of input shunt tubes through the reposition of redundant personnel head, and all install the fan in the one end that the reposition of redundant personnel head was kept away from to the input shunt tubes, the synchronous start fan can increase the interior wind-force of input pipeline to improve the ability of carrying the flue gas.

Preferably, one end of the output shunt pipe, which is far away from the fan, is fixedly connected with the filtering equipment.

Through above-mentioned technical scheme, fan cooperation input shunt tubes and output shunt tubes inhale the filtration equipment with the flue gas from input pipeline, and filtration equipment then filters the impurity in the flue gas, prevents that the direct emission of flue gas from causing the pollution.

Preferably, the sealing pipe shaft surface is provided with a threaded hole in a penetrating mode, and the fixing pin is in threaded connection with the sealing pipe.

Through above-mentioned technical scheme, when equipment normal operating, hinder contrary piece that hinders of mechanism and be in the open mode, then the flue gas can enter into flow distribution head and input shunt tubes from the input pipeline smoothly, through screwing up the fixed pin for the bull stick is closely received to the top of fixed pin, thereby fixes the bull stick, prevents that the bull stick from rotating and hinders contrary piece.

Preferably, the input shunt tube is internally welded with a fixing ring, and the sealing tube is welded on the axial surface of the input shunt tube.

Through above-mentioned technical scheme, when damage need be maintained appear in a certain fan or check valve, rotate the turning handle through unscrewing the fixed pin and can drive the bull stick and rotate, the bull stick drives and hinders contrary piece and rotate, only needs to rotate the turning handle ninety degrees and just can be closed in sealed intra-annular with hindering contrary piece, and corresponding input shunt tubes is in closed condition this moment to prevent to cause the flue gas to leak when maintaining fan or check valve.

Preferably, a groove is formed in the axial surface of the reverse blocking piece, and a sealing ring is fixedly installed in the groove.

Through the technical scheme, the rotating handle is rotated by ninety degrees to be matched with the rotating rod, so that the reverse blocking piece can be rotated by ninety degrees, and the sealing ring is tightly attached between the fixing ring and the reverse blocking piece, so that the sealing performance of the reverse blocking piece is enhanced.

Compared with the prior art, the utility model provides a parallelly connected check valve of many fans hinders contrary mechanism possesses following beneficial effect:

1. this parallelly connected check valve of many fans hinders contrary mechanism, through hinder contrary mechanism at the installation in the input shunt tubes, when certain fan or check valve damage appear in the parallelly connected circuit of many fans, make the bull stick not hard up appear through unscrewing the fixed pin, then rotate the bull stick and can drive the bull stick and rotate, the bull stick drives and hinders contrary piece rotation, only need rotate the bull stick ninety degrees and just can will hinder contrary piece closure in the sealing ring, corresponding input shunt tubes is in the closed condition this moment, make and just can maintain the fan or the check valve of damage without stopping all equipment, still can not cause the flue gas leakage.

2. This parallelly connected check valve of many fans hinders contrary mechanism, through seting up the recess on hindering contrary piece axial plane, installation sealing ring in the recess rotates ninety degrees cooperation bull stick with the turning handle and can will hinder contrary piece and rotate ninety degrees, and the sealing ring closely laminates at solid fixed ring and hinders between contrary piece this moment to strengthen the leakproofness that hinders contrary piece.

Drawings

FIG. 1 is a schematic view of the structure flow of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in partial section;

fig. 3 is a schematic cross-sectional view of the structure input shunt tube of the present invention.

Wherein: 1. an input pipe; 2. a flow dividing head; 3. inputting a shunt tube; 4. a fan; 5. a reverse blocking mechanism; 6. an output shunt tube; 7. a filtration device; 8. a one-way valve; 9. an output pipe; 51. a fixing ring; 52. a reverse blocking sheet; 53. a seal ring; 54. a rotating rod; 55. a sealing tube; 56. a handle is rotated; 57. and fixing the pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a multiple fan parallel one-way valve reverse blocking mechanism comprises an input pipeline 1, one end of the input pipeline 1 is connected with a shunt head 2, two ends of the shunt head 2 are connected with input shunt tubes 3, one end of each input shunt tube 3 is connected with a fan 4, a reverse blocking mechanism 5 is installed in each input shunt tube 3, one end, far away from the input shunt tubes 3, of each fan 4 is connected with an output shunt tube 6, one end of each output shunt tube 6 is connected with a filtering device 7, a one-way valve 8 is installed on the axial surface of each output shunt tube 6, and one end of each filtering device 7 is connected with an output pipeline 9;

the reverse blocking mechanism 5 comprises a fixing ring 51, a reverse blocking sheet 52, a sealing ring 53, a rotating rod 54, a sealing tube 55, a rotating handle 56 and a fixing pin 57, the fixing ring 51 is arranged outside the reverse blocking mechanism 5, the reverse blocking sheet 52 is installed in the fixing ring 51, the sealing ring 53 and the rotating rod 54 are installed on the axial surface of the reverse blocking sheet 52, the sealing tube 55 is sleeved on the axial surface of the rotating rod 54, the rotating handle 56 is installed on the top surface of the rotating rod 54, and the fixing pin 57 is installed on the axial surface of the sealing tube 55.

Specifically, one end of the flow dividing head 2 far away from the input pipeline 1 is connected with a plurality of input flow dividing pipes 3. The advantage is, connect a plurality of input shunt tubes 3 through reposition of redundant personnel head 2, and all install fan 4 in the one end that input shunt tubes 3 kept away from reposition of redundant personnel head 2, and the synchronous start fan 4 can increase the wind-force in the input pipeline 1 to improve the ability of carrying the flue gas.

Specifically, one end of the output shunt pipe 6, which is far away from the fan 4, is fixedly connected with the filtering device 7. The advantage is, during fan 4 cooperation input shunt tubes 3 and output shunt tubes 6 inhaled the flue gas from input pipeline 1 to filtration equipment 7, filtration equipment 7 then filters the impurity in the flue gas, prevents that the direct emission of flue gas from causing the pollution.

Specifically, a threaded hole is formed in the axial surface of the sealing tube 55 in a penetrating manner, and the fixing pin 57 is in threaded connection with the sealing tube 55. The advantage is that when the device is in normal operation, the reverse blocking piece 52 of the reverse blocking mechanism 5 is in an open state, and then the flue gas can smoothly enter the flow dividing head 2 and the input flow dividing pipe 3 from the input pipeline 1, and the top end of the fixing pin 57 is tightly connected to the rotating rod 54 by screwing the fixing pin 57, so that the rotating rod 54 is fixed, and the rotating rod 54 is prevented from rotating the reverse blocking piece 52.

Specifically, the input shunt 3 is internally welded with a fixing ring 51, and a sealing tube 55 is welded on the axial surface of the input shunt 3. The advantage is, when a certain fan 4 or check valve 8 appear damaging and need maintain, can drive the bull stick 54 through unscrewing fixed pin 57 back and rotating the turning handle 56 and rotate, the bull stick 54 drives the anti-contrary piece 52 and rotates, only need rotate the bull stick 56 ninety degrees and just can close the anti-contrary piece 52 in sealing ring 53, corresponding input shunt tubes 3 is in the closed condition this moment to prevent to cause the flue gas leakage when maintaining fan 4 or check valve 8.

Specifically, the axial surface of the check piece 52 is provided with a groove, and a sealing ring 53 is fixedly arranged in the groove. Advantageously, turning the lever 56 ninety degrees in conjunction with the lever 54 turns the check ring 52 ninety degrees, with the sealing ring 53 snugly fitting between the stationary ring 51 and the check ring 52, thereby enhancing the sealing of the check ring 52.

When the smoke-filtering device is used, firstly, the fan 4 is started to generate suction, smoke enters the flow dividing head 2 and the input flow dividing pipe 3 from the input pipeline 1 and then enters the output flow dividing pipe 6, the one-way valve 8 only can not be in the outlet, so that the smoke is conveyed to the filtering device 7 for filtering, and the one-way valve 8 can prevent the smoke from flowing back to the output flow dividing pipe 6 when the filtering device 7 filters the smoke and finally is discharged from the output pipeline 9; when a certain fan 4 or one-way valve 8 breaks down, the fixing pin 57 is unscrewed to enable the rotating rod 54 to be loosened, then the rotating handle 56 is rotated to drive the rotating rod 54 to rotate, the rotating rod 54 drives the reverse blocking piece 52 to rotate, the reverse blocking piece 52 can be closed in the sealing ring 53 only by rotating the rotating handle 56 by ninety degrees, and at the moment, the corresponding input shunt pipe 3 is in a closed state, so that smoke leakage is prevented when the fan 4 or the one-way valve 8 is maintained.

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 parallelly connected check valve of many fans hinders contrary mechanism, includes input pipeline (1), its characterized in that: one end of the input pipeline (1) is connected with the shunt head (2), two ends of the shunt head (2) are connected with the input shunt pipe (3), one end of the input shunt pipe (3) is connected with the fan (4), the reverse blocking mechanism (5) is installed in the input shunt pipe (3), one end, far away from the input shunt pipe (3), of the fan (4) is connected with the output shunt pipe (6), one end of the output shunt pipe (6) is connected with the filtering equipment (7), the axial surface of the output shunt pipe (6) is provided with the one-way valve (8), and one end of the filtering equipment (7) is connected with the output pipeline (9);

hinder contrary mechanism (5) including solid fixed ring (51), hinder contrary piece (52), sealing ring (53), bull stick (54), sealed tube (55), turning handle (56) and fixed pin (57), hinder contrary mechanism (5) outside and set up solid fixed ring (51), piece (52) are hindered to the installation in solid fixed ring (51), hinder and install sealing ring (53) and bull stick (54) on contrary piece (52) axial plane, cup joint sealed tube (55) on bull stick (54) axial plane, bull stick (54) top surface installation turning handle (56), install fixed pin (57) on sealed tube (55) axial plane.

2. The multi-fan parallel one-way valve reverse blocking mechanism of claim 1, characterized in that: one end of the flow dividing head (2) far away from the input pipeline (1) is connected with a plurality of input flow dividing pipes (3).

3. The multi-fan parallel one-way valve reverse blocking mechanism of claim 1, characterized in that: and one end of the output shunt pipe (6) far away from the fan (4) is fixedly connected with a filtering device (7).

4. The multi-fan parallel one-way valve reverse blocking mechanism of claim 1, characterized in that: the shaft surface of the sealing pipe (55) is provided with a threaded hole in a penetrating mode, and the fixing pin (57) is in threaded connection with the sealing pipe (55).

5. The multi-fan parallel one-way valve reverse blocking mechanism of claim 1, characterized in that: the input shunt pipe (3) is internally welded with a fixing ring (51), and the sealing pipe (55) is welded on the axial surface of the input shunt pipe (3).

6. The multi-fan parallel one-way valve reverse blocking mechanism of claim 1, characterized in that: the axial surface of the reverse blocking sheet (52) is provided with a groove, and a sealing ring (53) is fixedly arranged in the groove.