Drainage anti-blocking device and drainage anti-blocking method

Abstract

The present invention discloses a drainage anti-blocking device, comprising: a flue, a drain pipe and a hollow shaft motor, the bottom of the flue is connected to the drain pipe, a rotatable upper rotating part is fixedly provided on the upper end of the extended shaft of the hollow shaft motor, the upper rotating part is provided with a plurality of blades at intervals, the blades of the upper rotating part are spiral along the extension direction, the hollow shaft motor is connected and fixed between two drain pipes, the present invention also discloses a drainage anti-blocking method using the drainage anti-blocking device of the present invention, so that the present invention can effectively prevent water accumulation in the flue and blockage of the drain pipe.

Description

Technical Field

[0001] The present invention belongs to the technical field of drainage anti-blocking devices and methods, and in particular relates to a drainage anti-blocking device and a drainage anti-blocking method. Background Art

[0002] At present, the flue near the flue near the chimney or the outlet of the desulfurization induced draft fan of most factories will condense in the tail of the horizontal inclined flue because the flue gas contains a lot of moisture. Due to the lack of a good drainage structure, the moisture discharge is not smooth, resulting in a large amount of water accumulation in the horizontal flue. Therefore, in order to facilitate drainage, the flue is usually connected to a drainage pipe at the bottom; dust in the flue and residues corroded by water accumulation are easily accumulated in the drainage pipe, which will cause the drainage pipe to be blocked. Among them, there is a certain negative pressure in the desulfurization flue, which is not conducive to the removal of accumulated water from the flue.

[0003] In view of this, the inventors of the present invention have made in-depth considerations and actively studied, improved and tried to develop and design the present invention in view of the above-mentioned shortcomings and inconveniences. Summary of the invention

[0004] The object of the present invention is to provide a drainage anti-blocking device and a drainage anti-blocking method which can prevent flue blockage and water accumulation.

[0005] To achieve the above object, the solution of the present invention is:

[0006] A drainage anti-blocking device comprises: a flue, a drain pipe and a hollow shaft motor, wherein the bottom of the flue is connected to the drain pipe, a rotatable lower rotating member is fixedly provided at the lower end of the extended shaft of the hollow shaft motor, a plurality of blades are arranged at intervals on the lower rotating member, and the blades of the lower rotating member are spiral in the extension direction, and the hollow shaft motor is connected and fixed between the two drain pipes.

[0007] A rotatable upper rotating member is fixedly arranged at the upper end of the extended shaft of the hollow shaft motor, and a plurality of blades are arranged at intervals on the upper rotating member, and the blades of the upper rotating member are spiral along the extending direction.

[0008] An upper flange and a lower flange are installed in the middle of the drain pipe. The lower flange is detachably fixed to the upper flange, and a hollow shaft motor is fixed between the upper flange and the lower flange.

[0009] A lip seal ring is fixedly arranged at the connection between the upper end of the extended shaft of the hollow shaft motor and the upper flange and at the connection between the lower end of the extended shaft of the hollow shaft motor and the lower flange.

[0010] At least one O-type sealing ring is arranged between the upper flange and the outer wall of the drain pipe, and at least one O-type sealing ring is arranged between the lower flange and the outer wall of the drain pipe.

[0011] The blade is provided with a serrated blade.

[0012] The drainage anti-blocking device also includes a PLC controller, a driver, a water level sensor and a drainage solenoid valve. The water level sensor is arranged at the upper end of the drainage pipe, the water level sensor is communicatively connected to the PLC controller, the PLC controller is electrically connected to the driver, the driver is communicatively connected to the hollow shaft motor, the PLC controller is communicatively connected to the drainage solenoid valve, the drainage solenoid valve is arranged below the hollow shaft motor, and the drainage solenoid valve is arranged at the lower end of the drainage pipe.

[0013] A drainage anti-blocking method, using the drainage anti-blocking device, comprises the following steps:

[0014] (1) When the water level in the drain pipe reaches the water level sensor, the water level sensor sends a signal to the PLC controller;

[0015] (2) After receiving the signal sent by the water level sensor, the PLC controller controls the driver to start the hollow shaft motor, and the blades fixed to the hollow shaft motor rotate, and the blades crush the residue in the drainage pipe;

[0016] (3) After the hollow shaft motor runs for a period of time, the PLC controller controls the drain solenoid valve to open to drain water and slag. After a delay of a period of time, the hollow shaft motor and the drain solenoid valve are closed together.

[0017] After adopting the above technical scheme, the present invention is connected to the bottom of the flue through a drain pipe, so that the accumulated water and residue at the bottom of the flue enter the drain pipe. Since a hollow shaft motor with fixedly connected blades and the blades are spirally arranged between the two drain pipes, when the hollow shaft motor rotates, it will drive the blades to rotate, and the blades will rotate to crush the residue. The crushed residue will flow to the external environment along with the accumulated water through the hollow shaft motor, the drain pipe and the drain solenoid valve, thereby preventing water accumulation in the flue and blockage of the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the drainage anti-blocking device of the present invention, the direction of the horizontal arrow in the figure is the flow direction of the desulfurized flue gas, and the direction of the vertical arrow in the figure is the flow direction of the accumulated water and residue;

[0019] Figure 2 It is a side view schematic diagram of the drainage anti-blocking device of the present invention;

[0020] Figure 3 A three-dimensional diagram of a hollow shaft motor with fixedly connected blades at two extended ends of the hollow shaft according to the present invention;

[0021] Figure 4 It is a schematic top view of the drainage anti-blocking device of the present invention.

[0022]

Explanation of symbols

[0023] Flue 1 Drain pipe 2 Hollow shaft motor 3

[0024] Upper rotating member 31 blade 03 lower rotating member 32

[0025] Upper flange 4 Lower flange 5 Lip seal 6

[0026] O-ring 7PLC controller 8driver 9

[0027] Water level sensor 10 Drain solenoid valve 11 Bracket 12

[0028] Bolt 13. DETAILED DESCRIPTION

[0029] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are illustrated in detail with reference to the preferred embodiment of the present invention, and its features and functions are as follows for a complete understanding.

[0030] See also Figures 1 to 4 As shown, the present invention discloses a drainage anti-blocking device, comprising: a flue 1, a drain pipe 2 and a hollow shaft motor 3, the bottom of the flue 1 is connected to the drain pipe 2, a rotatable lower rotating member 32 is fixedly provided at the lower end of the extended shaft of the hollow shaft motor 3, the lower rotating member 32 is provided with a plurality of blades 03 at intervals, the blades 03 of the lower rotating member 32 are spiral along the extension direction, the lower rotating member 32 is hollow, and the hollow shaft motor 3 is connected and fixed between the two drain pipes 2.

[0031] Therefore, the present invention is connected to the bottom of the flue 1 through the drain pipe 2, so that the accumulated water and residues at the bottom of the flue 1 enter the drain pipe 2. Since a hollow shaft motor 3 fixedly connected to the blades 03 is provided between the two drain pipes 2 and the blades 03 are spirally shaped, when the hollow shaft motor 3 rotates, it will drive the blades 03 to rotate, and the blades 03 will rotate and crush the residues deposited in the drain pipe 2 on the upper side of the drain solenoid valve 11. The crushed residues will flow to the external environment along with the accumulated water through the hollow shaft motor 3, the drain pipe 2 and the drain solenoid valve 11, thereby preventing the flue 1 from accumulating water and residues. The drain pipe 2 is clogged; when the hollow shaft of the hollow shaft motor 3 rotates, the blade 03 will rotate accordingly, driving the fluid in the drain pipe to generate a downward spiral thrust, and the electrical energy of the hollow shaft motor 3 is converted into the kinetic energy of the blade 03, and the kinetic energy of the blade 03 is converted into the pressure energy in the drain pipe 2, that is, the dynamic pressure in the pipe. When the blade 03 rotates to a certain speed, the dynamic pressure in the pipe generated will overcome the negative pressure in the flue, and the accumulated water in the drain pipe 2 and the crushed residue can be discharged smoothly, and at the same time, the problem of drainage inconvenience caused by the negative pressure in the flue is solved.

[0032] Furthermore, the ends of the blades 03 of the upper rotating member 31 are arranged adjacent to each other, and the ends of the blades 03 of the lower rotating member 32 are arranged adjacent to each other. When the hollow shaft motor 3 is stationary, the blades 03 of the upper rotating member 31 can block large pieces of residue from falling into the hollow shaft of the hollow shaft motor 3 to prevent blockage.

[0033] Preferably, a rotatable upper rotating member 31 is fixedly provided at the upper end of the extended shaft of the hollow shaft motor 3, and the upper rotating member 31 is hollow. A plurality of blades 03 are spaced apart on the upper rotating member 31, and the blades 03 of the upper rotating member 31 are spirally shaped along the extension direction, so that the blades 03 of the upper rotating member 31 and the blades 03 of the lower rotating member 32 can both crush the residue to prevent the drain pipe 2 from being blocked; in the embodiment, the number of blades 03 of the upper rotating member 31 and the number of blades 03 of the lower rotating member 32 are both described as four, but are not limited thereto.

[0034] Next, a serrated blade may be provided on one side of the blade 03 of the upper rotating member 31 , and a serrated blade may be provided on one side of the blade 03 of the lower rotating member 32 , so as to facilitate the crushing of the residue when the blade 03 rotates.

[0035] Furthermore, the upper end of the drain pipe 2 is funnel-shaped, so as to facilitate the rapid flow of accumulated water and residues into the drain pipe 2, wherein the flue 1 can be arranged horizontally and tilted.

[0036] In order to facilitate the installation and fixation of the hollow shaft motor 3, an upper flange 4 and a lower flange 5 can be installed in the middle of the drain pipe 2, and the lower flange 5 can be detachably fixed to the upper flange 4, and the hollow shaft motor 3 is fixed between the upper flange 4 and the lower flange 5, wherein the upper flange 4 and the lower flange 5 are inserted into the middle of the drain pipe 2, and the upper flange 4 and the lower flange 5 are connected and fixed between the ends outside the drain pipe 2 by bolts 13.

[0037] Furthermore, lip sealing rings 6 can be respectively fixed at the connection between the upper end of the protruding shaft of the hollow shaft motor 3 and the upper flange 4 and the connection between the lower end of the protruding shaft of the hollow shaft motor 3 and the lower flange 5, so as to realize dynamic sealing between the protruding shaft of the hollow shaft motor 3 and the upper flange 4 and the lower flange 5, and prevent accumulated water from flowing into the hollow shaft motor 3 and causing damage to the hollow shaft motor 3. The hollow shaft of the hollow shaft motor 3 is connected to the upper flange 4, the lower flange 5 and the drain pipe 2.

[0038] Secondly, at least one O-ring 7 may be provided between the upper flange 4 and the outer wall of the drain pipe 2, and at least one O-ring 7 may be provided between the lower flange 5 and the outer wall of the drain pipe 2, so as to achieve static sealing. In the embodiment, the O-rings are described as two arranged at intervals.

[0039] Furthermore, the drainage anti-blocking device of the present invention may also include a PLC controller 8, a driver 9, a water level sensor 10 and a drainage solenoid valve 11. The water level sensor 10 is arranged at the upper end of the drainage pipe 2. The water level sensor 10 is communicatively connected to the PLC controller 8. The PLC controller 8 is electrically connected to the driver 9. The driver 9 is communicatively connected to the hollow shaft motor 3. The PLC controller 8 is communicatively connected to the drainage solenoid valve 11. The drainage solenoid valve 11 is arranged below the hollow shaft motor 3. The drainage solenoid valve 11 is arranged at the lower end of the drainage pipe 2, so as to facilitate the realization of automatic control of drainage and crushing of residue.

[0040] The present invention also discloses a drainage anti-blocking method, which uses the drainage anti-blocking device, and comprises the following steps:

[0041] (1) When the water level in the drain pipe 2 reaches the water level sensor 10, the water level sensor 10 sends a signal to the PLC controller 8;

[0042] (2) After receiving the signal sent by the water level sensor 10, the PLC controller 8 controls the driver 9 to start the hollow shaft motor 3, and the blades 03 fixedly connected to the hollow shaft motor 3 rotate, and the blades 03 crush the residue in the drain pipe 2;

[0043] (3) After the hollow shaft motor 3 has been running for a period of time, the PLC controller 8 controls the drain solenoid valve 11 to open to drain water and slag. After a delay of a period of time, the hollow shaft motor 3 and the drain solenoid valve 11 are closed together; wherein, the running time of the hollow shaft motor 3 and the subsequent drain delay time are set by the PLC controller.

[0044] Therefore, by adopting the above-mentioned drainage and anti-blocking method, it is possible to realize automatic control of drainage and slag discharge and prevent the drainage pipe 2 from being blocked.

[0045] In order to facilitate the placement of the PLC controller 8 and the driver 9, the drainage anti-blocking device of the present invention can also include a bracket 12, the drainage pipe 2 passes from the upper end of the bracket 12 to the lower end of the bracket 12, and the PLC controller 8 and the driver 9 are fixed on the bracket 12.

[0046] Furthermore, the blades 03 of the lower rotating member 32 are close to the upper end of the drain solenoid valve 11 , so that the blades 03 can crush all the rust residues deposited on the upper end of the drain solenoid valve 11 .

[0047] In addition, the blade 03 can be made of hard alloy with high hardness; the surfaces of the upper flange 4 and the lower flange 5 can be coated with a layer of anti-corrosion coating.

[0048] Further, the model of the water level sensor 10 can be XKC-Y28-NC; the model of the PLC controller 8 can be Fx1N-MT14-001; the hollow shaft motor 3 can be a hollow stepper motor with a speed range of 0-3000r / min, the model can be 86BYGH004-ZK30, the aperture of the hollow shaft is 30mm, and the static torque of the motor is 3N.m; the drain solenoid valve 11 can be a direct-acting normally closed solenoid valve, the model is 2W-500 DN80 DC24V.

[0049] The technical content and technical features of the present invention have been disclosed as above, and the composition of the present invention is not limited to the above. Those skilled in the art may still make various substitutions and modifications based on the disclosure of the present invention without departing from the creative spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the disclosure of the embodiments, but should include various substitutions and modifications that do not depart from the present invention and are covered by the claims.

Claims

1. A drainage anti-blocking device, characterized in that: include: A flue, a drain pipe and a hollow shaft motor, wherein the bottom of the flue is connected to the drain pipe, a rotatable lower rotating part is fixedly provided at the lower end of the extended shaft of the hollow shaft motor, a plurality of blades are arranged at intervals on the lower rotating part, the blades of the lower rotating part are spirally shaped along the extension direction, and the hollow shaft motor is connected and fixed between the two drain pipes; a rotatable upper rotating part is fixedly provided at the upper end of the extended shaft of the hollow shaft motor, a plurality of blades are arranged at intervals on the upper rotating part, the blades of the upper rotating part are spirally shaped along the extension direction; an upper flange and a lower flange are installed in the middle of the drain pipe, the lower flange is detachably fixed to the upper flange, and a hollow shaft motor is fixedly provided between the upper flange and the lower flange.

2. The drainage anti-blocking device according to claim 1, characterized in that: A lip seal ring is fixedly arranged at the connection between the upper end of the extended shaft of the hollow shaft motor and the upper flange and at the connection between the lower end of the extended shaft of the hollow shaft motor and the lower flange.

3. The drainage anti-blocking device according to claim 1, characterized in that: At least one O-type sealing ring is arranged between the upper flange and the outer wall of the drain pipe, and at least one O-type sealing ring is arranged between the lower flange and the outer wall of the drain pipe.

4. The drainage anti-blocking device according to any one of claims 1 to 3, characterized in that: The blade is provided with a serrated blade.

5. The drainage anti-blocking device according to any one of claims 1 to 3, characterized in that: It also includes a PLC controller, a driver, a water level sensor and a drain solenoid valve, the water level sensor is arranged at the upper end of the drain pipe, the water level sensor is communicatively connected to the PLC controller, the PLC controller is electrically connected to the driver, the driver is communicatively connected to the hollow shaft motor, the PLC controller is communicatively connected to the drain solenoid valve, the drain solenoid valve is arranged below the hollow shaft motor, and the drain solenoid valve is arranged at the lower end of the drain pipe.

6. A drainage and blocking prevention method, characterized in that: The application of the drainage anti-blocking device according to claim 5 comprises the following steps: (1) When the water level in the drain pipe reaches the water level sensor, the water level sensor sends a signal to the PLC controller; (2) After receiving the signal sent by the water level sensor, the PLC controller controls the driver to start the hollow shaft motor, and the blades fixed to the hollow shaft motor rotate, and the blades crush the residue in the drainage pipe; (3) After the hollow shaft motor runs for a period of time, the PLC controller controls the drain solenoid valve to open to drain water and slag. After a delay of a period of time, the hollow shaft motor and the drain solenoid valve are closed together.

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