CN112112809A - Automatic water supply and drainage device of horizontal centrifugal pump - Google Patents
Automatic water supply and drainage device of horizontal centrifugal pump Download PDFInfo
- Publication number
- CN112112809A CN112112809A CN201910543571.2A CN201910543571A CN112112809A CN 112112809 A CN112112809 A CN 112112809A CN 201910543571 A CN201910543571 A CN 201910543571A CN 112112809 A CN112112809 A CN 112112809A
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- Prior art keywords
- centrifugal pump
- pump
- water
- alternating current
- bottom valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 238000007667 floating Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/044—Means for rendering the priming pump inoperative
- F04D9/045—Means for rendering the priming pump inoperative the means being liquid level sensors
- F04D9/046—Means for rendering the priming pump inoperative the means being liquid level sensors the means being floats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
- F04D9/044—Means for rendering the priming pump inoperative
- F04D9/049—Means for rendering the priming pump inoperative by operator interventions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an automatic water supply and drainage device of a horizontal centrifugal pump, which comprises a sump, a bottom valve submersible pump, a centrifugal pump and a floating ball switch, wherein the bottom valve submersible pump is arranged at the bottom of the sump, a centrifugal pump water inlet pipe is connected between the bottom valve submersible pump and the centrifugal pump, the centrifugal pump water inlet pipe is connected with an electric contact pressure gauge, the centrifugal pump is provided with a water outlet pipe, the water outlet pipe is connected with a check valve, the centrifugal pump is also connected with an exhaust pipe, the exhaust pipe is connected with an air exhaust electromagnetic valve, and the floating ball switch is arranged on the water surface of the sump; the invention solves the technical defects of the existing water supply and drainage equipment, and meets the application requirements of various water supply and drainage equipment with a large-capacity water sump and a water level lower than the water inlet of the centrifugal pump.
Description
Technical Field
The invention belongs to the technical field of centrifugal pump equipment, and particularly relates to an automatic water supply and drainage device of a horizontal centrifugal pump.
Background
Centrifugal pumps are widely used in various industries such as electric power, metallurgy, coal, building materials, etc., as a kind of rotating equipment for transporting water, and are almost indispensable equipment in water treatment systems. The centrifugal pump is suitable for urban water supply and drainage, high-rise pressurizing water supply, garden sprinkling irrigation, cold and hot water pressurizing, equipment matching and the like, and is extremely wide in application.
The centrifugal pump is used for conveying water, oil, sewage, corrosive, toxic and other liquids, before the centrifugal pump is started, a pump cavity and a pipeline are filled with a large amount of air, liquid media are injected manually to drain the air in the pump cavity and the pipeline, or a vacuum water tank is adopted, so that when the centrifugal pump is started, the liquid media are pumped out by centrifugal force generated by rotation of an impeller, sufficient vacuum degree is formed in the pump cavity, and the liquid media are continuously sucked.
The labor intensity of manual liquid injection is high, time and labor are wasted, and the cost is high. The vacuum water tank sucks water into the closed water tank through a water inlet pipeline, the water pump absorbs water from the water tank to generate a certain vacuum value in the water tank, and under the action of the vacuum value, the water enters the water pump vacuum water diversion device from the water inlet pool through the water inlet pipeline. The vacuum water tank is only suitable for occasions with small water yield and water level higher than the water inlet of the centrifugal pump, if the water tank overflows, paper can be guided to flood the pump and damage is caused, particularly, a deep water sump of a mine mostly utilizes a lower inclined shaft as a water sump, and the mode cannot meet the normal use requirement.
Disclosure of Invention
The invention aims to provide an automatic water supply and drainage device of a horizontal centrifugal pump, which solves the technical defects of the existing water supply and drainage equipment and meets the application requirements of various water supply and drainage equipment with a large-capacity water sump and a water level lower than a water inlet of the centrifugal pump.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic drainage device that supplies of horizontal centrifugal pump, includes sump, bottom valve immersible pump, centrifugal pump and float switch, the bottom valve immersible pump sets up in the sump bottom, the bottom valve immersible pump with connect the centrifugal pump inlet tube between the centrifugal pump, the centrifugal pump advances water piping connection and has electric contact pressure gauge, and the centrifugal pump sets up the outlet pipe, and the outlet pipe inserts has the check valve, and the centrifugal pump still is connected with the blast pipe, and the blast pipe inserts has the exhaust solenoid valve, the float switch sets up in the sump surface of.
Further, the centrifugal pump includes a first motor for driving the centrifugal pump to operate, and the bottom valve submersible pump includes a second motor for driving the bottom valve submersible pump to operate.
Further, the automatic safety device comprises a first circuit breaker, a second circuit breaker, a first alternating current contactor, a second alternating current contactor, a first thermal relay, a second thermal relay, a manual stop button, a manual start button, a manual automatic change-over switch, a time relay, a first safety pipe and a second safety pipe.
Furthermore, the manual automatic change-over switch is closed, and a current signal flows to a normally open contact of the float switch through a normally closed contact of the time relay; when the water level rises to a preset water level, the float switch is closed, the current signal is connected with the second alternating current contactor through the second thermal relay, so that a second motor of the bottom valve submersible pump works, meanwhile, a coil of the electromagnetic valve is electrified and opened, air in the centrifugal pump is discharged from the exhaust pipe, the current signal of the electromagnetic valve is disconnected in a time-delay manner by the aid of the time-delay auxiliary point of the second alternating current contactor, the pressure of the water inlet of the centrifugal pump rises along with the electromagnetic valve, so that a normally open contact of the electric contact pressure gauge is closed, the first alternating current contactor is connected, the first motor of the centrifugal pump; when the water level drops to a preset water level, the floating ball switch is switched off, the second alternating current contactor is cut off, the second motor of the bottom valve submersible pump stops working, the auxiliary contact of the second alternating current contactor cuts off the first alternating current contactor, and the first motor of the centrifugal pump stops working.
The invention has the following beneficial effects:
the invention solves the problem that the water surface can not be lower than the water inlet of the centrifugal pump in the prior art, and provides conditions for the wide application of the centrifugal pump;
the invention avoids the problem of overflow flooding pump of vacuum water tank, avoids the fault of submersible pump and reduces loss;
the invention automatically controls the water supply device through the circuit, realizes the unattended operation of the centrifugal pump, reduces the use cost, and prevents the centrifugal pump from being damaged due to the waterless idle running of the water inlet;
compared with the traditional technology, the invention has the advantages of lower manufacturing and using cost, smart design, stable operation, safety and reliability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
In the figure: 1. the device comprises a centrifugal pump water inlet pipe, a centrifugal pump water sump, a centrifugal valve submersible pump, a bottom valve submersible pump, a centrifugal pump, a water outlet pipe, a check valve, a solenoid valve, an electric contact pressure gauge, a gas outlet pipe, a floating ball switch, an M1, a first motor, an M2, a second motor, QS1, a first circuit breaker, QS2, a second circuit breaker, KM1, a first alternating current contactor, KM2, a second alternating current contactor, FR1, a first thermal relay, FR2, a second thermal relay, SB1, a manual stop button, SB2, a manual start button, SA, a manual automatic change-over switch, KT, a time relay, FU1, a first safety pipe, FU2 and a second safety pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, this embodiment provides an automatic water supply and drainage device of horizontal centrifugal pump, including sump 2, bottom valve immersible pump 3, centrifugal pump 4 and float switch 10, bottom valve immersible pump 3 sets up in sump 2 bottom, bottom valve immersible pump 3 with connect centrifugal pump inlet tube 1 between the centrifugal pump 4, centrifugal pump inlet tube 1 is connected with electric contact pressure gauge 8, and centrifugal pump 4 sets up outlet pipe 5, and outlet pipe 5 inserts has check valve 6, and centrifugal pump 4 still is connected with blast pipe 9, and blast pipe 9 inserts has row air solenoid valve 7, float switch 10 sets up in the 2 surface of water in sump.
The centrifugal pump 4 comprises a first motor M1 for driving the operation thereof, and the bottom valve submersible pump 3 comprises a second motor M2 for driving the operation thereof.
Referring to fig. 1-2, the present embodiment further includes a first circuit breaker QS1, a second circuit breaker QS2, a first ac contactor KM1, a second ac contactor KM2, a first thermal relay FR1, a second thermal relay FR2, a manual stop button SB1, a manual start button SB2, a manual/automatic transfer switch SA, a time relay KT, a first fuse FU1, and a second fuse FU 2.
The manual automatic transfer switch SA is closed, and a current signal flows to a normally open contact of the float switch 10 through a time relay KT normally closed contact; when the water level rises to a preset water level, the float switch 10 is closed, a current signal is connected with a second alternating current contactor KM2 through a second thermal relay FR2, so that a second motor M2 of the bottom valve submersible pump 3 works, meanwhile, a coil of the electromagnetic valve 7 is electrified and opened, air in the centrifugal pump 4 is discharged from an exhaust pipe 9, a time delay auxiliary point KM2 delays to disconnect the current signal of the electromagnetic valve 7, the pressure of a water inlet of the centrifugal pump 3 rises along with the time delay auxiliary point KM2, a normally open contact of an electric contact pressure gauge 8 is closed, the first alternating current contactor KM1 is connected, and a first motor M1 of the centrifugal pump 4 starts to work and continuously discharges water; when the water level drops to a preset water level, the float switch 10 is switched off, the second alternating current contactor KM2 is switched off, the second motor M2 of the bottom valve submersible pump 3 stops working, the auxiliary contact of the second alternating current contactor KM2 switches off the first alternating current contactor KM1, and the first motor M1 of the centrifugal pump 4 stops working.
This embodiment installs the small-size immersible pump of suitable lift and flow additional according to the 2 degree of depth in sump at 4 low portions of centrifugal pump, bottom valve immersible pump 3 promptly, and through fig. 2 circuit diagram control bottom valve immersible pump 3 automatic start and stop, 4 rows of air of centrifugal pump and solenoid valve 7 open simultaneously after bottom valve immersible pump 3 starts, air exhaust back self-closing, and centrifugal pump 4 starts thereupon, when 2 water levels in sump reach predetermines the low water level, centrifugal pump 4 and 3 automatic shutdown work of bottom valve immersible pump, when centrifugal pump 4 breaks down, 3 time delay stop work of bottom valve immersible pump.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (4)
1. The utility model provides an automatic water supply and drainage device of horizontal centrifugal pump, includes sump, bottom valve immersible pump, centrifugal pump and float switch, its characterized in that: the bottom valve immersible pump sets up in the sump bottom, the bottom valve immersible pump with connect the centrifugal pump inlet tube between the centrifugal pump, the centrifugal pump advances water piping connection and has electric contact pressure gauge, and the centrifugal pump sets up the outlet pipe, and the outlet pipe inserts has the check valve, and the centrifugal pump still is connected with the blast pipe, and the blast pipe inserts has the air exhaust solenoid valve, the float switch sets up in the sump surface of water.
2. The automatic water supply and discharge device of the centrifugal pump of the horizontal type according to claim 1, wherein: the centrifugal pump comprises a first motor for driving the centrifugal pump to operate, and the bottom valve submersible pump comprises a second motor for driving the bottom valve submersible pump to operate.
3. The automatic water supply and discharge device of the centrifugal pump of the horizontal type according to claim 2, wherein: the automatic starting device is characterized by further comprising a first circuit breaker, a second circuit breaker, a first alternating current contactor, a second alternating current contactor, a first thermal relay, a second thermal relay, a manual stopping button, a manual starting button, a manual automatic change-over switch, a time relay, a first protective tube and a second protective tube.
4. The automatic water supply and discharge device of the centrifugal pump of the horizontal type according to claim 3, wherein: the manual automatic change-over switch is closed, and a current signal flows to a normally open contact of the float switch through a normally closed contact of the time relay; when the water level rises to a preset water level, the float switch is closed, the current signal is connected with the second alternating current contactor through the second thermal relay, so that a second motor of the bottom valve submersible pump works, meanwhile, a coil of the electromagnetic valve is electrified and opened, air in the centrifugal pump is discharged from the exhaust pipe, the current signal of the electromagnetic valve is disconnected in a time-delay manner by the aid of the time-delay auxiliary point of the second alternating current contactor, the pressure of the water inlet of the centrifugal pump rises along with the electromagnetic valve, so that a normally open contact of the electric contact pressure gauge is closed, the first alternating current contactor is connected, the first motor of the centrifugal pump; when the water level drops to a preset water level, the floating ball switch is switched off, the second alternating current contactor is cut off, the second motor of the bottom valve submersible pump stops working, the auxiliary contact of the second alternating current contactor cuts off the first alternating current contactor, and the first motor of the centrifugal pump stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543571.2A CN112112809A (en) | 2019-06-21 | 2019-06-21 | Automatic water supply and drainage device of horizontal centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543571.2A CN112112809A (en) | 2019-06-21 | 2019-06-21 | Automatic water supply and drainage device of horizontal centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112112809A true CN112112809A (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910543571.2A Pending CN112112809A (en) | 2019-06-21 | 2019-06-21 | Automatic water supply and drainage device of horizontal centrifugal pump |
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| Country | Link |
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| CN (1) | CN112112809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123104A (en) * | 2022-09-10 | 2023-05-16 | 锦州重型水泵有限公司 | Method for configuring vacuumizing-free cavitation-free drainage pump set |
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|---|---|---|---|---|
| CN201318307Y (en) * | 2008-11-25 | 2009-09-30 | 宝钢集团上海梅山有限公司 | Gas exhaust type rapid water-feeding device free of water injection for centrifugal water pump in deep well |
| CN201531433U (en) * | 2009-07-28 | 2010-07-21 | 崔正军 | Device of automatically sucking, starting, stopping and exhausting for centrifugal pump |
| CN203335416U (en) * | 2013-04-03 | 2013-12-11 | 杨兴敏 | Fluid sealing self-priming centrifugal pump |
| CN104196736A (en) * | 2014-08-23 | 2014-12-10 | 王亚泉 | Control circuit structure of high-efficiency intelligent self-priming pump |
| CN204239281U (en) * | 2014-10-11 | 2015-04-01 | 南京梅山冶金发展有限公司 | A kind of high-lift multi-stage centrifugal pump water supply installation |
| CN106545501A (en) * | 2017-01-13 | 2017-03-29 | 史买林 | Axial-flow type centrifugal pump safe operation system and its method of work |
| CN210290164U (en) * | 2019-06-21 | 2020-04-10 | 李江伟 | Automatic water supply and drainage device of horizontal centrifugal pump |
-
2019
- 2019-06-21 CN CN201910543571.2A patent/CN112112809A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201318307Y (en) * | 2008-11-25 | 2009-09-30 | 宝钢集团上海梅山有限公司 | Gas exhaust type rapid water-feeding device free of water injection for centrifugal water pump in deep well |
| CN201531433U (en) * | 2009-07-28 | 2010-07-21 | 崔正军 | Device of automatically sucking, starting, stopping and exhausting for centrifugal pump |
| CN203335416U (en) * | 2013-04-03 | 2013-12-11 | 杨兴敏 | Fluid sealing self-priming centrifugal pump |
| CN104196736A (en) * | 2014-08-23 | 2014-12-10 | 王亚泉 | Control circuit structure of high-efficiency intelligent self-priming pump |
| CN204239281U (en) * | 2014-10-11 | 2015-04-01 | 南京梅山冶金发展有限公司 | A kind of high-lift multi-stage centrifugal pump water supply installation |
| CN106545501A (en) * | 2017-01-13 | 2017-03-29 | 史买林 | Axial-flow type centrifugal pump safe operation system and its method of work |
| CN210290164U (en) * | 2019-06-21 | 2020-04-10 | 李江伟 | Automatic water supply and drainage device of horizontal centrifugal pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123104A (en) * | 2022-09-10 | 2023-05-16 | 锦州重型水泵有限公司 | Method for configuring vacuumizing-free cavitation-free drainage pump set |
| CN116123104B (en) * | 2022-09-10 | 2024-05-28 | 锦州重型水泵有限公司 | Method for configuring vacuumizing-free cavitation-free drainage pump set |
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