CN111501984A - Monitoring and cleaning device for large vertical water pump forebay sludge - Google Patents
Monitoring and cleaning device for large vertical water pump forebay sludge Download PDFInfo
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- CN111501984A CN111501984A CN202010300449.5A CN202010300449A CN111501984A CN 111501984 A CN111501984 A CN 111501984A CN 202010300449 A CN202010300449 A CN 202010300449A CN 111501984 A CN111501984 A CN 111501984A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/18—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
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- Water Supply & Treatment (AREA)
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- General Physics & Mathematics (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention designs a large-scale vertical water pump forebay sludge monitoring and cleaning device which is characterized by comprising a sludge depth monitoring part used for monitoring the depth of sludge, a sludge washing part used for washing the sludge, and a P L C control box used for collecting signals and sending instructions.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a large-scale vertical water pump forebay sludge monitoring and cleaning device.
Background
At present, the circulating cooling water demand of a plurality of large nuclear power and thermal power plants is large, water taking pump stations are mostly arranged at nearby water sources such as sea and rivers, the large vertical water pumps are sufficient in output, high in power, simple in structure and wide in use, and because the pump bodies of the water pumps are all located below the ground, when the pump stations are built, underground water inlet foreponds can be built, and because the water quality of the water sources is uneven, the foreponds run through long-time water, a large amount of sludge is deposited at the bottoms of the ponds, so that the area of the flow passages of the ponds is reduced, and the normal operation of the vertical water pumps is seriously influenced.
The scheme is that a steel gate plate is put down in a channel of a maintenance gate plate, so that the water pump forebay is of a front-back closed structure, then a submersible pump is arranged in the forebay for centralized drainage, and the sludge in the forebay is manually cleaned and transported outwards after drainage, and the method has the following defects:
(1) the sludge amount in the water tank cannot be monitored in the normal operation of the water pump, and can be usually found when the rotating filter screen is blocked or the output of the water pump is insufficient due to the excessive sludge amount.
(2) The sludge in the pool can be cleaned only when the water pump is stopped, and the sludge in the front pool cannot be cleaned on line. Each washing of the sludge of the water pump forebay will be subject to: the method comprises the following steps of lower gate plate isolation, drainage, manual dredging, outward transportation, water injection, gate plate extraction and operation recovery, and consumes a large amount of time, manpower and material resources.
(3) The front pool of the large vertical water pump can often reach 10 m deep, the desilting operation at the bottom of the pool is very dangerous, the safety risks such as falling from a high place, falling from objects, suffocation and the like are higher, and higher requirements are provided for the safety technology management capability of managers and the safety consciousness of constructors.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a large vertical water pump forebay sludge monitoring and cleaning device.
The technical scheme adopted by the invention for solving the related technical problems is as follows: the utility model provides a large-scale vertical water pump forebay silt monitoring and cleaning device which characterized in that includes:
a sludge depth monitoring section for monitoring a depth of the sludge,
the method comprises the following steps: the underwater monitoring system comprises a first power box, a transmission motor and an underwater monitoring device, wherein the first power box is electrically connected with the transmission motor and the underwater monitoring device respectively and supplies power to the transmission motor and the underwater monitoring device; the underwater monitoring device comprises a protective shell, a metal lead screw is arranged in the protective shell, the metal lead screw is of a hollow structure, a driving motor is arranged at the lower end in the metal lead screw, the driving motor is connected with an impeller through a sealing connector, a first power box is connected with the driving motor through a power line, and a lead screw position probe is arranged on the inner wall of the protective shell;
a sludge washing section for washing the sludge,
the method comprises the following steps: the second power box is connected with the electric gate valve, the electric gate valve is arranged at the joint of a washing water main pipe and the water supply pipe, and the nozzle is arranged at the water outlet end of the water supply pipe;
a P L C control box for collecting signals and issuing commands,
the source signals include: the power supply signal of the transmission motor, the power supply signal of the driving motor and the lead screw position signal detected by the lead screw position probe; the output signal includes: the control system comprises a transmission motor, a first power box, a second power box, a driving motor and a motor, wherein the transmission motor is connected with the first power box, the second power box is connected with the driving motor, the first power box is connected with the second power box, and the second power box is connected with the driving motor.
Further, in an initial state, the lead screw position probe and the top end of the metal lead screw are positioned on the same horizontal line.
Further, still be equipped with the slip guide block in the protective housing, the slip guide block is the tubular structure, the slip guide block cover is established on the metal lead screw, the slip guide block sets up lead screw position probe below.
Further, still be equipped with the speed reducer driver in the protective housing, the speed reducer driver is located sliding guide piece below, the speed reducer driver with drive motor is connected for control the reciprocating of metal lead screw.
Furthermore, the water supply pipe comprises a main water supply pipe and a branch water supply pipe, the water inlet end of the main water supply pipe is connected with the main washing water pipe through the electric gate valve, and the water outlet end of the main water supply pipe is connected with the water inlet end of the branch water supply pipe.
Furthermore, the water supply branch pipe is provided with two water outlet ends, each water outlet end is connected with a mounting main pipe, and the mounting main pipes are parallel to the bottom surface of the water pump forebay.
Furthermore, the nozzle has a plurality ofly, evenly arranges on the female pipe of installation, the nozzle with the female pipe of installation is certain angle.
Furthermore, one end of the sealing connector is connected with the driving motor positioned in the metal screw rod, and the other end of the sealing connector extends out of the metal screw rod and is connected with the impeller.
Further, in an initial state, the impeller is located in the protective shell.
Furthermore, one end of the power line is connected with the first power box, and the other end of the power line penetrates through the inside of the metal lead screw through the upper port of the metal lead screw and is connected with the driving motor.
The invention has the advantages that:
the large-scale vertical water pump forebay sludge monitoring and cleaning device is simple in structure and complete in main function, can realize full-automatic monitoring and cleaning, does not need to use manpower, can automatically clean in the whole process, saves a large amount of manpower and material resources, and ensures the cleanness and smoothness of the large-scale vertical water pump forebay and a flow passage; the existing pressure water source is utilized, so that the cost for purchasing the boosting equipment is saved; the operation is convenient and reliable; easy installation, the maintenance of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the installation position of a large vertical water pump forebay sludge monitoring and cleaning device of the invention;
FIG. 2 is a schematic structural view of a sludge depth monitoring part of the large vertical water pump forebay sludge monitoring and cleaning device of the invention;
FIG. 3 is a schematic structural diagram of a P L C control box of the large vertical water pump forebay sludge monitoring and cleaning device of the present invention;
FIG. 4 shows a large vertical water pump forebay sludge monitoring and cleaning device of the invention
Wherein:
1. the device comprises a large vertical water pump, a 2 water pump forebay rotary filter screen, a 3 trash rack, a 4 overhauling gate plate channel, a 100 sludge depth monitoring part, a 200P L C control box, a 300 sludge washing part, a 101 impeller, a 102 sealing connector, a 103 driving motor, a 104 power line, a 105 reducer driver, a 106 sliding guide block, a 107 protective shell, a 108 first power supply box, a 109 driving motor, a 110 metal lead screw, a 111 lead screw position probe, a 301 nozzle, a 302 mounting main pipe, a 303 water supply branch pipe, a 304 water supply main pipe, a 305 washing water main pipe, a 306 second power supply box, a 307 electric gate valve, a main water supply pipe, a cleaning water main pipe, a;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figure 1, the installation position of the large vertical water pump forebay sludge monitoring and cleaning device is schematically shown, large-size impurities in a water source are blocked by a trash rack 3, small impurities are rotationally cleaned by a rotary filter screen 2, silt in water is often too small to be completely cleaned and is deposited between the rotary filter screen 2 and an access flashboard channel 4, and the silt is difficult to deposit due to the stirring and water absorption of a water pump impeller on water flow at the large vertical water pump 1, so that the silt is little.
The silt depth monitoring part 100 is installed between the rotary filter screen 2 and the trash rack 3, the silt flushing part 300 is installed between the trash rack 3 and the maintenance gate plate channel 4, and the P L C control box 200 is installed above the water pump forebay and is respectively connected with the silt depth monitoring part 100 and the silt flushing part 300.
As shown in fig. 3, the P L C control box 200 is used for collecting signals and sending commands, the source signals include a power signal of the transmission motor 109, a power signal of the driving motor 103 and a lead screw position signal detected by the lead screw position probe 111, and the output signals include a command signal transmitted to the transmission motor 109 through the first power box 108, a command signal transmitted to the driving motor 103 through the first power box 108 and a command signal transmitted to the electric gate valve 307 to open and close through the second power box 306.
As shown in fig. 2, a sludge depth monitoring section 100 for monitoring the depth of sludge includes: the underwater monitoring device comprises a first power box 108, a transmission motor 109 and an underwater monitoring device, wherein the first power box 108 is electrically connected with the transmission motor 109 and the underwater monitoring device respectively to supply power to the transmission motor 109 and the underwater monitoring device; the underwater monitoring device comprises a protective shell 107, a metal lead screw 110 is arranged in the protective shell 107, the metal lead screw 110 is of a hollow structure, a driving motor 103 is arranged at the lower end inside the metal lead screw 110, the driving motor 103 is connected with an impeller 101 through a sealing connector 102, one end of the sealing connector 102 is connected with the driving motor 103 which is positioned in the metal lead screw 110, one end of the sealing connector extends out of the metal lead screw 110 and the impeller 101, and in the initial state, the impeller 101 is positioned in the protective shell 107.
The first power supply box 108 is connected with the driving motor 103 through a power line 104, one end of the power line 104 is connected with the first power supply box 108, and the other end of the power line penetrates through the inside of the metal lead screw from the upper port of the metal lead screw to be connected with the driving motor 103.
A lead screw position probe 111 is mounted on the inner wall of the protective shell 107, and in an initial state, the lead screw position probe 111 and the top end of the metal lead screw 110 are located on the same horizontal line.
Still be equipped with slide guide block 106 in the protective housing 107, slide guide block 106 is the tubular structure, slide guide block 106 cover is established on metal lead screw 110, slide guide block 106 sets up lead screw position probe 111 below.
A speed reducer driver 105 is further arranged in the protective shell 107, the speed reducer driver 105 is located below the sliding guide block 106, and the speed reducer driver 105 is connected with the transmission motor 109 and used for controlling the metal lead screw 110 to move up and down.
After receiving the timing monitoring signal from the P L C control box 200, the first power box 108 supplies power to the transmission motor 109 and the driving motor 103, and the P L C control box 200 starts to count time with the initial time t 0.
The transmission motor 109 starts to work, the speed reducer and the gear set IN the speed reducer driver 105 drive the metal lead screw 110 to move up and down, when monitoring starts, the metal lead screw 110 moves slowly from top to bottom at a constant speed, after the metal lead screw 110 reaches the lowest point, the lead screw position probe 111 detects that a position signal IN3 is fed back to the P L C control box 200, the P L C control box 200 is fed back to the first power box 108, the transmission motor 109 rotates reversely, the power supply of the driving motor 103 is cut off, and the metal lead screw 110 moves up and returns to the initial position.
The first power box 108 and the transmission motor 109 simultaneously enable the driving motor 103 to start to work, the impeller 101 starts to rotate, a power signal IN2 of the driving motor 103 is fed back to the P L C control box 200 through the first power box 108, when the impeller 101 touches the sludge, resistance is increased, current rapidly and obviously rises, and the P L C control box 200 automatically calculates the thickness of the sludge as H-V (t1-t0) according to the time t1 when the current obviously rises.
As shown in fig. 4, a sludge washing section 300 for washing sludge includes: a second power supply box 306, an electric gate valve 307, a water supply pipe and a nozzle 301, wherein the second power supply box 306 is connected with the electric gate valve 307, the electric gate valve 307 is arranged at the joint of a washing water main pipe 305 and the water supply pipe, and the nozzle 301 is arranged at the water outlet end of the water supply pipe.
The water supply pipe includes a main water supply pipe 304 and a branch water supply pipe 303, wherein a water inlet end of the main water supply pipe 304 is connected to the main flush water pipe 305 through the electric gate valve 307, and a water outlet end of the main water supply pipe 304 is connected to a water inlet end of the branch water supply pipe 303.
The water supply branch pipe 303 is provided with two water outlet ends, each water outlet end is connected with a mounting main pipe 302, and the mounting main pipes 302 are parallel to the bottom surface of the water pump forebay.
The plurality of nozzles 301 are uniformly arranged on the mounting main pipe 302, and the nozzles 301 form a certain angle with the mounting main pipe 302. The mounting main pipe 302 is arranged at the bottom of the pool, is close to the side wall of the pool bottom and is parallel to the water flow direction, and the nozzle 301 is obliquely mounted, forms an angle of 45 degrees with the water flow direction and points to the downstream side (pump side) of the water flow, so that the sludge is conveniently dispersed and is timely pumped out of the forebay by a water pump.
After the second power box 306 receives a power signal of opening the valve of the P L C control box 200, the electric gate valve 307 is opened, the water in the rinsing water main pipe 305 with the rotary filter screen of the original system passes through the water supply main pipe 304, the water supply branch pipe 303 and the installation main pipe 302 and then washes sludge at the bottom of the pool through the nozzle 301, after the washing is finished according to the preset time T, the electric gate valve 307 is closed through a control signal, and the washing is finished.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a large-scale vertical water pump forebay silt monitoring and cleaning device which characterized in that includes:
a sludge depth monitoring section for monitoring a depth of the sludge,
the method comprises the following steps: the underwater monitoring system comprises a first power box, a transmission motor and an underwater monitoring device, wherein the first power box is electrically connected with the transmission motor and the underwater monitoring device respectively and supplies power to the transmission motor and the underwater monitoring device; the underwater monitoring device comprises a protective shell, a metal lead screw is arranged in the protective shell, the metal lead screw is of a hollow structure, a driving motor is arranged at the lower end in the metal lead screw, the driving motor is connected with an impeller through a sealing connector, a first power box is connected with the driving motor through a power line, and a lead screw position probe is arranged on the inner wall of the protective shell;
a sludge washing section for washing the sludge,
the method comprises the following steps: the second power box is connected with the electric gate valve, the electric gate valve is arranged at the joint of a washing water main pipe and the water supply pipe, and the nozzle is arranged at the water outlet end of the water supply pipe;
a P L C control box for collecting signals and issuing commands,
the source signals include: the power supply signal of the transmission motor, the power supply signal of the driving motor and the lead screw position signal detected by the lead screw position probe; the output signal includes: the control system comprises a transmission motor, a first power box, a second power box, a driving motor and a motor, wherein the transmission motor is connected with the first power box, the second power box is connected with the driving motor, the first power box is connected with the second power box, and the second power box is connected with the driving motor.
2. The large vertical water pump forebay sludge monitoring and cleaning device of claim 1, wherein: in an initial state, the lead screw position probe and the top end of the metal lead screw are positioned on the same horizontal line.
3. The large vertical water pump forebay sludge monitoring and cleaning device of claim 2, wherein: still be equipped with the slip guide block in the protective housing, the slip guide block is the tubular structure, the slip guide block cover is established on the metal lead screw, the slip guide block sets up lead screw position probe below.
4. The large vertical water pump forebay sludge monitoring and cleaning device of claim 3, wherein: the protective housing is internally provided with a speed reducer driver, the speed reducer driver is positioned below the sliding guide block, and the speed reducer driver is connected with the transmission motor and used for controlling the metal lead screw to move up and down.
5. The large vertical water pump forebay sludge monitoring and cleaning device of claim 1, wherein: the water supply pipe comprises a main water supply pipe and a branch water supply pipe, the water inlet end of the main water supply pipe is connected with the main washing water pipe through the electric gate valve, and the water outlet end of the main water supply pipe is connected with the water inlet end of the branch water supply pipe.
6. The large vertical water pump forebay sludge monitoring and cleaning device of claim 5, wherein: the water supply branch pipe is provided with two water outlet ends, each water outlet end is connected with a mounting main pipe, and the mounting main pipes are parallel to the bottom surface of the water pump forebay.
7. The large vertical water pump forebay sludge monitoring and cleaning device of claim 6, wherein: the nozzle has a plurality ofly, evenly arranges on the female pipe of installation, the nozzle with the female pipe of installation is certain angle.
8. The large vertical water pump forebay sludge monitoring and cleaning device of claim 1, wherein: one end of the sealing connector is connected with the driving motor positioned in the metal screw rod, and the other end of the sealing connector extends out of the metal screw rod and is connected with the impeller.
9. The large vertical water pump forebay sludge monitoring and cleaning device of claim 8, wherein: in an initial state, the impeller is located within the protective housing.
10. The large vertical water pump forebay sludge monitoring and cleaning device of claim 1, wherein: one end of the power line is connected with the first power box, and the other end of the power line penetrates through the inside of the metal lead screw through the upper port of the metal lead screw and is connected with the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300449.5A CN111501984A (en) | 2020-04-16 | 2020-04-16 | Monitoring and cleaning device for large vertical water pump forebay sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010300449.5A CN111501984A (en) | 2020-04-16 | 2020-04-16 | Monitoring and cleaning device for large vertical water pump forebay sludge |
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| CN111501984A true CN111501984A (en) | 2020-08-07 |
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| CN202010300449.5A Pending CN111501984A (en) | 2020-04-16 | 2020-04-16 | Monitoring and cleaning device for large vertical water pump forebay sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522895A (en) * | 2021-07-20 | 2021-10-22 | 西安交通大学 | Pipeline flushing method and device |
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2020
- 2020-04-16 CN CN202010300449.5A patent/CN111501984A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113522895A (en) * | 2021-07-20 | 2021-10-22 | 西安交通大学 | Pipeline flushing method and device |
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