CN117365971A - Anti-idle-rotation early warning device for submersible pump - Google Patents

Anti-idle-rotation early warning device for submersible pump Download PDF

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Publication number
CN117365971A
CN117365971A CN202311455468.5A CN202311455468A CN117365971A CN 117365971 A CN117365971 A CN 117365971A CN 202311455468 A CN202311455468 A CN 202311455468A CN 117365971 A CN117365971 A CN 117365971A
Authority
CN
China
Prior art keywords
submersible pump
laser correlation
idle
warning device
photoelectric switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202311455468.5A
Other languages
Chinese (zh)
Inventor
韩哲楠
杨大海
田世超
朱国成
王刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Construction Third Engineering Bureau Water Resources And Hydropower Development Co ltd
Original Assignee
China Construction Third Engineering Bureau Water Resources And Hydropower Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Construction Third Engineering Bureau Water Resources And Hydropower Development Co ltd filed Critical China Construction Third Engineering Bureau Water Resources And Hydropower Development Co ltd
Priority to CN202311455468.5A priority Critical patent/CN117365971A/en
Publication of CN117365971A publication Critical patent/CN117365971A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077—Safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of submersible pumps, in particular to an anti-idle early warning device of a submersible pump, which comprises a submersible pump body and further comprises: the anti-blocking filter assembly comprises a filter ring arranged at a cylinder opening above the water storage sleeve and a filter bucket arranged on the filter ring; the floating assembly is arranged on the filter bucket and comprises a floating bag which is used as a floating unit and floats along with the change of the liquid level, and a laser correlation photoelectric switch which is activated when the water level is reduced to a set height; the pump body is prevented from being damaged due to the fact that the water inlet is blocked in the pumping process of the submersible pump through the anti-blocking filter assembly, the floating assembly can activate the laser correlation photoelectric switch when the water level is reduced through the floating bag, and whether the preset early warning water level height is reached or not is judged conveniently; the pressure sensing module is matched with the laser correlation photoelectric switch, and any one or both of the pressure sensing module and the laser correlation photoelectric switch are triggered at the same time, so that the device can be stopped in time to prevent idle running damage; the first electronic valve and the second electronic valve can reflux the water source to avoid idle running damage when the submersible pump is not stopped in time.

Description

Anti-idle-rotation early warning device for submersible pump
Technical Field
The invention relates to the technical field of submersible pumps, in particular to an anti-idle-rotation early warning device for a submersible pump.
Background
The submersible pump is an important device for extracting water, and when the submersible pump is used, the whole unit is immersed into water to work, so that water is extracted to the ground surface; however, the damage caused by the submersible pump at present comprises dry combustion caused by idling of the pump, and the idling of the pump is fatal to the pump.
The idle submersible pump is easy to cavitation and causes harm to the pump body and the overflow piece; insufficient water inflow or blocked water inflow pipeline, the lubrication of water flow liquid is not obtained, the pump body heats, dry grinding is caused, and further the pump body is rapidly damaged, so that the idle running of the submersible pump is very important; the prior patent with the publication number of CN 115853794B provides an anti-idle water pump, and the pump body mainly moves through a driving plate to trigger a warning mechanism and a water supply mechanism, so that the water supply mechanism supplies water temporarily, and idle damage caused by untimely power failure of the pump body is avoided.
However, the pump body is complex in structure and does not have an anti-idle early warning function, so that the design of the structure is considered to be used for early warning, idle damage caused by pumping water source of the pump body can be avoided after the early warning is triggered, and meanwhile, the problem of how to avoid blockage of the pump body of the submersible pump is considered; in view of this, we propose a immersible pump anti-idle-rotation early warning device.
Disclosure of Invention
The invention aims to solve the defects in the background art and provides an anti-idle pre-warning device for a submersible pump.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a immersible pump anti-idle early warning device, includes the immersible pump body, the immersible pump body is installed inside the retaining sleeve that holds water, still includes:
the anti-blocking filter assembly is used for filtering a water source to be extracted from the submersible pump body and comprises a filter ring arranged at a cylinder opening above the water storage sleeve and a filter bucket arranged on the filter ring;
the floating assembly is arranged on the filter bucket and comprises a floating bag which is used as a floating unit and floats along with the change of the liquid level, and a laser correlation photoelectric switch which is activated when the water level is reduced to a set height;
the pressure sensing module is arranged at the inner wall of the filter bucket, the buoyancy bag triggers the pressure sensing module when the water level is reduced to a set height, and the pressure sensing module is used for judging the liquid level height by matching with the laser correlation photoelectric switch and triggering the early warning control system to prevent idling.
Preferably, the submerged pump body is provided with a liquid outlet pipe in a conducting mode, the liquid outlet pipe is provided with a first electronic valve, the liquid outlet pipe is provided with a backflow branch pipe, and the backflow branch pipe is provided with a second electronic valve.
Preferably, a threaded ring opening is arranged at the water storage sleeve opening, and the filter ring is installed on the threaded ring opening in a threaded manner.
Preferably, the water storage sleeve is provided with an outer connecting ring around, and the filter bucket is mounted on the outer connecting ring through a plurality of fastening bolts.
Preferably, the rubber magnetic sheet is arranged on the outer bag body of the floating bag, and the magnetic suction block for mutually and magnetically sucking the rubber magnetic sheet is arranged on the filter bucket.
Preferably, the pressure sensing module is installed in the filter bucket and is positioned at the position corresponding to the magnetic attraction of the magnetic attraction block and the rubber magnetic sheet.
Preferably, the floating bag is provided with a balance connecting rod, the rod body of the balance connecting rod is rotatably arranged on the supporting seat, the outer end of the balance connecting rod is provided with an outer positioning cover, and the supporting seat is arranged at the filter bucket edge wall.
Preferably, the laser correlation photoelectric switch comprises a first laser correlation unit arranged at the outer end of the balance connecting rod, and a second laser correlation unit corresponding to the first laser correlation unit is arranged in the outer positioning cover.
Preferably, the early warning control system comprises a singlechip module, wherein the laser correlation photoelectric switch is electrically connected with the pressure sensing module in parallel, and any one or two of the laser correlation photoelectric switch and the pressure sensing module are used for early warning of the pumping water level.
Preferably, the single-chip microcomputer module is electrically connected with the first electronic valve and the second electronic valve in parallel respectively.
Compared with the prior art, the invention has the beneficial effects that:
according to the anti-idle early warning device for the submersible pump, the pump body is prevented from being damaged due to the fact that a water inlet is blocked in the pumping process of the submersible pump through the anti-blocking filter assembly, and the floating assembly arranged on the anti-blocking filter assembly can activate the laser correlation photoelectric switch when the water level is reduced through the floating bag, so that whether the set early warning water level height is reached or not can be judged conveniently; meanwhile, the device is provided with a pressure sensing module which can be matched with the floating bag, the pressure sensing module is matched with the laser correlation photoelectric switch, so that the damage of a single part is avoided, and any one or the two parts can be triggered simultaneously to judge that the water level is reduced to the early warning height, thereby being convenient for stopping in time and preventing idle running damage; in addition, the first electronic valve and the second electronic valve arranged on the device can prevent the backflow water source from idling damage when the submersible pump is not stopped in time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a second schematic diagram of the overall structure of the present invention;
FIG. 3 is an exploded view of the overall structure of the present invention;
FIG. 4 is a cross-sectional view of a floating assembly of the present invention;
FIG. 5 is a diagram of an early warning control system according to the present invention.
The meaning of each reference numeral in the figures is:
1. a water storage sleeve; 101. a threaded collar; 102. an outer connecting ring; 2. a filter ring; 3. a submersible pump body; 4. a liquid outlet pipe; 41. a return branch pipe; 5. a first electronic valve; 6. a second electronic valve; 7. a filter bucket; 8. a fastening bolt; 9. a floating assembly; 91. a buoyancy bag; 92. a balance link; 93. a support base; 94. a first laser correlation unit; 95. a second laser correlation unit; 96. an outer positioning cover; 97. a rubber magnetic sheet; 10. and a magnetic attraction block.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. Embodiments and features of embodiments in this application may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention is described in detail by the following embodiments:
the utility model provides a immersible pump anti-idle-rotation early warning device, includes immersible pump body 3, and immersible pump body 3 installs inside retaining sleeve 1 that holds water, as shown in fig. 1-3, and retaining sleeve 1 retaining is used for being taken out by immersible pump body 3, still includes:
the anti-blocking filter assembly is used for filtering a water source to be extracted from the submersible pump body 3 and comprises a filter ring 2 arranged at a cylinder opening above the water storage sleeve 1 and a filter bucket 7 arranged on the filter ring 2;
two floating components 9 which are arranged on the filter bucket 7 and comprise a floating bag 91 which is used as a floating unit and floats along with the change of the liquid level, and a laser correlation photoelectric switch which is activated when the water level is reduced to a set height;
the two pressure sensing modules are arranged at the inner wall of the filter bucket 7, when the water level is reduced to a set height, the two floating bags 91 trigger the two pressure sensing modules respectively, and the pressure sensing modules are used for judging the liquid level height by matching with the laser correlation photoelectric switch and triggering the early warning control system to prevent idling.
The drain pipe 4 is installed in the conduction on the immersible pump body 3, and the drain pipe 4 of this embodiment is threaded through the top filter funnel 7, is equipped with first electronic valve 5 on the drain pipe 4, is equipped with backward flow branch pipe 41 on the drain pipe 4, is equipped with second electronic valve 6 on the backward flow branch pipe 41.
The important explanation is that, the immersible pump anti-idle early warning device of this embodiment, its theory of operation is: when the practical submersible pump body 3 is needed to pump water, in order to avoid the blockage of foreign matters, the practical submersible pump body is arranged in the water storage sleeve 1, the filter ring 2 and the filter bucket 7 are arranged above the practical submersible pump body, after the practical submersible pump is put into water, the buoyancy bag 91 floats upwards under the action of the buoyancy of the ballast, as shown in the structure of fig. 4, the liquid level is higher during the floating, the laser correlation photoelectric switch cannot be aligned, and the laser correlation photoelectric switch cannot be activated to trigger an early warning control system at the moment; when the water level continuously drops to the height of the early warning water level, the buoyancy bag 91 drops along with the water level and is placed on the pressure sensing module of the inner wall of the filter bucket 7 under the action of gravity, and at the moment, the laser correlation photoelectric switch is switched on. The early warning control system comprises a singlechip module, wherein the singlechip module is electrically connected with a laser correlation photoelectric switch and a pressure sensing module in parallel, and any one or two of the laser correlation photoelectric switch and the pressure sensing module are used for early warning the pumping water level; the embodiment can directly control the submersible pump body 3 to stop through the singlechip module, in order to avoid untimely stop or control unit fault, the singlechip module is respectively connected with the first electronic valve 5 and the second electronic valve 6 in parallel, and when the first electronic valve 5 is closed after reaching the early warning water level, the second electronic valve 6 is opened, so that the water source is pumped out and flows back again to fall into the water storage sleeve 1 to avoid idling.
A threaded ring opening 101 is arranged at the cylinder opening of the water storage sleeve 1, so that the filter ring 2 can be conveniently disassembled and assembled, and the filter ring 2 is installed on the threaded ring opening 101 in a threaded manner; the water storage sleeve 1 is provided with an outer connecting ring 102 around, and the filter bucket 7 is mounted on the outer connecting ring 102 through three fastening bolts 8 to form a stable mounting structure.
The outer bag body of the floating bag 91 is provided with a rubber magnetic sheet 97, the filter bucket 7 is provided with a magnetic suction block 10 which is used for mutually and magnetically sucking the rubber magnetic sheet 97, and the pressure sensing module is arranged in the filter bucket 7 and is positioned at a position corresponding to the magnetic suction of the magnetic suction block 10 and the rubber magnetic sheet 97; the present embodiment controls the magnetic attraction force to be smaller than the buoyancy force when the liquid level is beyond the buoyancy bag 91, only to increase the digital display of the pressure sensing module by magnetic force, and reduce the false touch.
As shown in fig. 4, a balance link 92 is installed on the float bag 91, the rod body of the balance link 92 is rotatably installed on a supporting seat 93, an outer positioning cover 96 is installed at the outer end of the balance link 92, and the supporting seat 93 is installed at the wall of the filter bucket 7; the laser correlation photoelectric switch comprises a first laser correlation unit 94 arranged at the outer end of a balance connecting rod 92, a second laser correlation unit 95 corresponding to the first laser correlation unit 94 is arranged in an outer positioning cover 96, the deflection angles of the balance connecting rod 92 are different along with the height change of the water level, and the angle for activating the laser correlation photoelectric switch can be obtained after the water level is lowered.
It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present invention, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, "a plurality of" means two or more. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (10)

1. The utility model provides a immersible pump anti-idle-rotation early warning device, includes immersible pump body (3), immersible pump body (3) are installed inside retaining sleeve (1) that holds water, its characterized in that: further comprises:
the anti-blocking filtering assembly is used for filtering a water source to be extracted from the submersible pump body (3), and comprises a filtering ring (2) arranged at a cylinder opening above the water storage sleeve (1) and a filtering hopper (7) arranged on the filtering ring (2);
the floating assembly (9) is arranged on the filter bucket (7) and comprises a floating bag (91) which is used as a floating unit and floats along with the change of the liquid level, and a laser correlation photoelectric switch which is activated when the water level is reduced to a set height;
the pressure sensing module is arranged at the inner wall of the filter bucket (7), the buoyancy bag (91) triggers the pressure sensing module when the water level is reduced to a set height, and the pressure sensing module is used for judging the liquid level height by matching with the laser correlation photoelectric switch and triggering the early warning control system to prevent idling.
2. The anti-idle pre-warning device for a submersible pump according to claim 1, wherein: the submersible pump is characterized in that a liquid outlet pipe (4) is arranged on the submersible pump body (3) in a conducting mode, a first electronic valve (5) is arranged on the liquid outlet pipe (4), a backflow branch pipe (41) is arranged on the liquid outlet pipe (4), and a second electronic valve (6) is arranged on the backflow branch pipe (41).
3. The anti-idle pre-warning device for a submersible pump according to claim 1, wherein: the water storage sleeve (1) is characterized in that a threaded ring opening (101) is formed in the barrel opening, and the filter ring (2) is installed on the threaded ring opening (101) in a threaded mode.
4. The anti-idle pre-warning device for a submersible pump according to claim 1, wherein: the water storage sleeve (1) is provided with an outer connecting ring (102) around, and the filter bucket (7) is installed on the outer connecting ring (102) through a plurality of fastening bolts (8).
5. The anti-idle pre-warning device for a submersible pump according to claim 4, wherein: rubber magnetic sheets (97) are arranged on the outer bag body of the floating bag (91), and magnetic attraction blocks (10) used for mutually magnetically attracting the rubber magnetic sheets (97) are arranged on the filter bucket (7).
6. The anti-idle pre-warning device for a submersible pump according to claim 5, wherein: the pressure sensing module is arranged in the filter bucket (7) and is positioned at the position corresponding to the magnetic attraction of the magnetic attraction block (10) and the rubber magnetic sheet (97).
7. The anti-idle rotation pre-warning device of a submersible pump according to claim 2, wherein: the balance connecting rod (92) is installed on the floating bag (91), the rod body of the balance connecting rod (92) is rotatably installed on the supporting seat (93), the outer end of the balance connecting rod (92) is provided with the outer positioning cover (96), and the supporting seat (93) is installed at the wall of the filter bucket (7).
8. The anti-idle rotation warning device of the submersible pump of claim 7, wherein: the laser correlation photoelectric switch comprises a first laser correlation unit (94) arranged at the outer end of the balance connecting rod (92), and a second laser correlation unit (95) corresponding to the first laser correlation unit (94) is arranged in the outer positioning cover (96).
9. The anti-idle rotation pre-warning device of a submersible pump according to claim 8, wherein: the early warning control system comprises a singlechip module, wherein the laser correlation photoelectric switch is electrically connected with the pressure sensing module in parallel, and any one or two of the laser correlation photoelectric switch and the pressure sensing module are used for early warning of the pumping water level.
10. The anti-idle pre-warning device for a submersible pump according to claim 9, wherein: the singlechip module is respectively and electrically connected with the first electronic valve (5) and the second electronic valve (6) in parallel.
CN202311455468.5A 2023-11-02 2023-11-02 Anti-idle-rotation early warning device for submersible pump Withdrawn CN117365971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311455468.5A CN117365971A (en) 2023-11-02 2023-11-02 Anti-idle-rotation early warning device for submersible pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311455468.5A CN117365971A (en) 2023-11-02 2023-11-02 Anti-idle-rotation early warning device for submersible pump

Publications (1)

Publication Number Publication Date
CN117365971A true CN117365971A (en) 2024-01-09

Family

ID=89392745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311455468.5A Withdrawn CN117365971A (en) 2023-11-02 2023-11-02 Anti-idle-rotation early warning device for submersible pump

Country Status (1)

Country Link
CN (1) CN117365971A (en)

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Application publication date: 20240109

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