CN103541890A - Self-sucking pump - Google Patents
Self-sucking pump Download PDFInfo
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- CN103541890A CN103541890A CN201310528308.9A CN201310528308A CN103541890A CN 103541890 A CN103541890 A CN 103541890A CN 201310528308 A CN201310528308 A CN 201310528308A CN 103541890 A CN103541890 A CN 103541890A
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- priming pump
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Abstract
The invention relates to the field of machinery, in particular to a self-sucking pump. A vacuum testing component is arranged between a water sucking port and a check valve of a water sucking channel and used for testing and displaying pressure between the check valve and a horizontal plane in a well, the self-sucking pump has a pressure-running state corresponding relationship, and running states in the pressure-running state corresponding relationship include running normality, untight seal of the water sucking port or bottom tube air leakage or bottom tube blockage, voltage instability, water pump component damage, pressure tank flooding, water shortage in the well and well water depth. The self-sucking pump has the advantage of capability of accurately determining specific reasons for normal operation failure of the self-sucking pump.
Description
Technical field
The present invention relates to mechanical field, in particular to self-priming pump.
Background technique
The current existing various self-priming pumps of China (jet pump, screw pump, self priming pump etc.); in actual practical process, often can run into a variety of causes; as: bottom tube gas leakage, the situations such as position is high or low, voltage is high or low of intaking; these situations often cause the draw water situation of poor effect of self-priming pump; to users, make troubles; and user Duo Shi unprofessional user; be difficult to the accurately not good concrete cause of judgement self-priming pump running; therefore; be difficult to find problem fast and accurately; and take suitable counter-measure, recover self-priming pump and run well.
Summary of the invention
The object of the present invention is to provide a kind of self-priming pump, to solve the above problems.
A kind of self-priming pump is provided in an embodiment of the present invention, between water sucking mouth and the safety check of water absorption channel, be provided with vacuum test assembly, for the pressure between test safety check and well inner horizontal demonstration, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, water sucking mouth is poorly sealed or bottom tube gas leakage or bottom tube obstruction, voltage instability, pump part damage, not enough, the well water degree of depth of water in pressurized tank water inlet, well.
The self-priming pump that the embodiment of the present invention provides, can reach following beneficial effect:
Inventor finds through research for many years, by the pressure between test safety check and well inner horizontal, can judge the concrete cause that self-priming pump cannot work, therefore, by being arranged at the vacuum test assembly between water sucking mouth and the safety check of water absorption channel, test the pressure between safety check and well inner horizontal, according to pressure-operating condition corresponding relation, can accurately determine concrete cause.
Accompanying drawing explanation
Fig. 1 shows the structural representation of self-priming pump in one embodiment of the invention.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
One embodiment of the invention provides a kind of self-priming pump, between water sucking mouth and the safety check of water absorption channel, be provided with vacuum test assembly, for the pressure between test safety check and well inner horizontal demonstration, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, water sucking mouth is poorly sealed or bottom tube gas leakage, voltage instability, pump part damage, not enough, the well water degree of depth of water in pressurized tank water inlet, well.
Inventor finds through research for many years, by the pressure between test safety check and well inner horizontal, can judge the concrete cause that self-priming pump cannot work, therefore, by being arranged at the vacuum test assembly between water sucking mouth and safety check, test the pressure between safety check and well inner horizontal, according to pressure-operating condition corresponding relation, can accurately determine concrete cause.
Below, by some specific embodiments, describe this self-priming pump in detail:
A kind of self-priming pump, as Fig. 1, shown in, between water sucking mouth 3 and water absorption channel (being the flow channel that the self-priming mouth of a river flows into self-priming pump) safety check 4, be provided with vacuum test assembly, for the pressure between test safety check 4 and well inner horizontal demonstration, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, water sucking mouth 3 is poorly sealed or bottom tube gas leakage or bottom tube obstruction, voltage instability, pump part damage, not enough, the well water degree of depth of water in pressurized tank water inlet, well.
It should be noted that, the presentation mode of pressure-operating condition corresponding relation can have a variety of, such as: a form, be imprinted on a tinsel, tinsel is fixed in the housing outer surface of self-priming pump by welding or other means of fixation; Be imprinted in self-priming pump specification, or be imprinted in self-priming pump guide for use, or a card that is printed on corresponding relation, etc. variety of way, specifically not limitting, those skilled in the art can carry out fixed concrete appearance form as required.
Water sucking mouth 3 connects underground well casing, and the negative pressure between safety check 4 and underground water can judge gas leakage situation by observing pressure gauge, and the vacuum magnitude that in well, the height of the water surface produces is also different, and the steady shakiness of voltage also can have demonstration on pressure.
In certain embodiments, this vacuum test assembly comprises: be arranged at the through hole 2 on housing, through hole 2, between water sucking mouth 3 and safety check 4, and is connected with water absorption channel, and through hole 2 is connected with negative pressure of vacuum table 1.Negative pressure of vacuum table 1 can directly be tested the pressure between safety check 4 and well inner horizontal, and shows, and easy-to-operat person observes, and then compares pressure-operating condition corresponding relation, determines operating condition, takes suitable counter-measure.
The size of through hole depends primarily on the joint size of negative pressure of vacuum table 1.
Structure based on above-mentioned, need to consider between negative pressure of vacuum table 1 and through hole 2 sealing that connects, only has sealing enough good, ability Measurement accuracy, therefore, in certain embodiments, between through hole 2 and negative pressure of vacuum table 1, Sealing is also set, adopts the seal to seal.
The mode of Sealing has a lot, in certain embodiments, adopts teflin tape, and teflin tape is wrapped in the joint of through hole 2 and negative pressure of vacuum table 1.Because teflin tape is the desirable sealing material of a kind of novelty, its nontoxic, tasteless, good sealing, insulating properties, chemical stability, rotproofness, be applicable to being applied to this self-priming pump.
Or in certain embodiments, Sealing adopts sealing gasket, sealing gasket is positioned over to the joint of through hole 2 and negative pressure of vacuum table 1, because sealing gasket possesses higher expansion and contractibility, therefore can reach good sealing effect.
Annexation about negative pressure of vacuum table 1 and through hole 2, can adopt various ways equally:
Such as, in certain embodiments, through hole 2 is threaded with negative pressure of vacuum table 1, and through hole 2 is tapped hole, and negative pressure of vacuum table 1 is screwed on, and needs only do being threaded enough meticulous and can directly reach certain sealing effect.
Especially, in certain embodiments, the joint of negative pressure of vacuum table 1 is screwed in tapped hole (through hole 2) after being wound around teflin tape, seals more fully.
Again such as: in certain embodiments, negative pressure of vacuum table 1 is inserted in through hole 2, and with the internal surface laminating of through hole 2, as long as do enough meticulous, this laminating also can reach certain sealing effect.
Especially, in certain embodiments, on the laminating surface of contact of the two, sealing gasket is set and seals more fully.
Such as: through hole 2 and the welding of negative pressure of vacuum table 1, welding can seal preferably again, and but, welding is not easy to carry out changeing of negative pressure of vacuum table 1, change and maintenance all not too convenient.
Due to, after self-priming pump draws water and cuts out, the interior effect due to safety check 4 of intake pipe, water in self-priming pump falls less than (safety check 4 cuts out) in well, the Groundwater plane vacuum magnitude that 3 water will fall here to water sucking mouth can be seen the depth of water outlet, therefore the pressure between safety check 4 and well inner horizontal is the distance of missile silo inner horizontal and ground level, the value of negative pressure of vacuum table 1 can the accurate response depth of water, such as :-0.07 is exactly 7 meters of left and right of the depth of water,-0.06 is exactly 6 meters of left and right of the depth of water, because the water suction degree of depth of self-priming pump is all generally 1-10 rice, actual water suction 8 to 9 meters of left and right of the degree of depth.Because negative pressure of vacuum table 1 can Measurement accuracy pressure, the sphere of activities of pointer is preferably in 2/3rds scopes in dial plate, and therefore, the graduated range of the negative pressure of vacuum table 1 that this self-priming pump is equipped with is 0 to-0.16MPa.
Next, the pressure-operating condition corresponding relation when vacuum test assembly is comprised to through hole and negative pressure of vacuum table describes:
Situation 1. normal pumpings
When electric moter voltage rotating speed under normal circumstances, the pointer demonstration-0.05Mpa of negative pressure of vacuum table is between-0.08Mpa.
The situation 2. poorly sealed gas leakage in water sucking mouth or bottom tube gas leakage or bottom tube stop up
When electric moter voltage rotating speed under normal circumstances, the pointer of negative pressure of vacuum table is presented between 0 to-0.05Mpa, shows poorly sealed gas leakage, may be the poorly sealed gas leakage in water sucking mouth or bottom tube gas leakage.
The distance of situation 3. determined level faces and ground level
When motor draws water voltage when normal, after cutting off the electricity supply, the closure of check ring of inside, water sucking mouth, safety check front end water pump internal pressure and safety check rear end well inner suction form two kinds of power states, the numerical value of negative pressure of vacuum list index indication represents that safety check rear end is to the distance of well inner horizontal, represent the suction distance of missile silo inner horizontal and ground level at that time, the less expression of numerical value of indicating after the cursor backward effect of drawing water is better.
4. voltage instability
When overtension or when too low the suction situation of pump constantly change, negative pressure of vacuum table does not stop moving along with the height of voltage, when brownout, do not reach the motor rotating speed that draws water, pointer is presented between 0 to-0.05Mpa, cuts off the electricity supply if desired.
5. pump part damages
The parts damages of drawing water of water pump inside, rotating speed is normal or slow, and indicator is presented between 0 to-0.05Mpa, on-call maintenance.
6. water feeding of water pump is to the water inlet situation of pressurized tank
Under normal circumstances, the pointer of negative pressure of vacuum table represents between being presented at 0 to-0.05Mpa that pressurized tank do not intake to electric moter voltage rotating speed, as be presented at-0.05Mpa between-0.08Mpa to show pressurized tank water inlet.
7. lack of water whether in well
Electric moter voltage rotating speed under normal circumstances, be presented at-0.09Mpa of negative pressure of vacuum list index represents lack of water between-0.1Mpa, or the pointer violent original position that turns back to suddenly, represent lack of water in well, if be presented at-0.09Mpa of pointer between-0.1Mpa because horizontal plane and ground level distance exceed pump sump scope, in well, lack of water does not reach outlet effect yet.
In addition, in certain embodiments, vacuum test assembly comprises: pressure transducer, processor;
Pressure transducer inserts in the pipelined channel between safety check and water sucking mouth, to test the pressure between safety check and well inner horizontal, and pressure and processor is shared;
Processor, for obtaining pressure and showing pressure from pressure transducer;
Pressure transducer is connected with the housing seal of self-priming pump, and carries out wireless and/or wired connection with processor.Use the method can improve the convenience of automation and reading, and, by wired or wireless Placement, reach on-the-spot or long-range observation.
In order further not improve the automaticity of self-priming pump, processor, also be connected with the motor of self-priming pump, and for receiving the electric machine operation state of motor, and according to electric machine operation state, force value and default pressure-operating condition corresponding relation are compared, produce the operating condition of corresponding pressure value, and show operating condition.Thereby force value and operating condition are carried out, from being dynamically connected, passing through pre-set programs automatic decision, without operator oneself judgement, like this, having reduced on the one hand the fault rate of artificial judgement, on the other hand, saved manpower workload and human cost.
Inventor finds through research for many years, by the pressure between test safety check and well inner horizontal, can judge the concrete cause that self-priming pump cannot work, therefore, by being arranged at the vacuum test assembly between water sucking mouth and safety check, test the pressure between safety check and well inner horizontal, according to pressure-operating condition corresponding relation, can accurately determine concrete cause.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a self-priming pump, it is characterized in that, between water sucking mouth and the safety check of water absorption channel, be provided with vacuum test assembly, for the pressure between test safety check and well inner horizontal demonstration, described self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in described pressure-operating condition corresponding relation comprises: work well, water sucking mouth is poorly sealed or bottom tube gas leakage or bottom tube obstruction, voltage instability, pump part damage, not enough, the well water degree of depth of water in pressurized tank water inlet, well.
2. self-priming pump according to claim 1, it is characterized in that, described vacuum test assembly comprises: be arranged at the through hole on housing, described through hole is between described water sucking mouth and described safety check, and be connected with described water absorption channel, described through hole is connected with negative pressure of vacuum table.
3. self-priming pump according to claim 2, is characterized in that, between described through hole and described negative pressure of vacuum table, Sealing is also set.
4. self-priming pump according to claim 3, is characterized in that, described Sealing comprises teflin tape, and described teflin tape is wrapped in the joint of described through hole and described negative pressure of vacuum table.
5. self-priming pump according to claim 3, is characterized in that, described Sealing comprises: sealing gasket.
6. self-priming pump according to claim 3, is characterized in that, described through hole is threaded with described negative pressure of vacuum table; Or described negative pressure of vacuum table inserts in described through hole, and fit with the internal surface of through hole.
7. self-priming pump according to claim 2, is characterized in that, described through hole and the welding of described negative pressure of vacuum table.
8. self-priming pump according to claim 2, is characterized in that, the graduated range of described negative pressure of vacuum table is 0 to-0.16MPa.
9. self-priming pump according to claim 1, is characterized in that, described vacuum test assembly comprises:
Pressure transducer, described pressure transducer inserts in the water absorption channel between described safety check and described water sucking mouth, to test the pressure between described safety check and well inner horizontal, and described pressure and processor is shared;
Described processor, for obtaining described pressure and showing described pressure from described pressure transducer;
Described pressure transducer is connected with the housing seal of described self-priming pump, and carries out wireless and/or wired connection with described processor.
10. self-priming pump according to claim 9, it is characterized in that, described processor, also be connected with the motor of described self-priming pump, also for receiving the electric machine operation state of described motor, and according to described electric machine operation state, described pressure and default described pressure-operating condition corresponding relation are compared, produce the operating condition of corresponding described force value, and show described operating condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528308.9A CN103541890B (en) | 2013-10-30 | 2013-10-30 | Self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528308.9A CN103541890B (en) | 2013-10-30 | 2013-10-30 | Self-priming pump |
Publications (2)
| Publication Number | Publication Date |
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| CN103541890A true CN103541890A (en) | 2014-01-29 |
| CN103541890B CN103541890B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310528308.9A Expired - Fee Related CN103541890B (en) | 2013-10-30 | 2013-10-30 | Self-priming pump |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548288B (en) * | 2014-06-20 | 2016-09-01 | 致伸科技股份有限公司 | Semi-finished product of speaker leak test system and method |
| CN108626105A (en) * | 2018-03-31 | 2018-10-09 | 温州职业技术学院 | The Automatic Conveying and leakage test equipment of oil pump assy |
| CN108916021A (en) * | 2018-07-20 | 2018-11-30 | 泗县金皖泵业有限公司 | A kind of water pump suction tester |
| CN114704477A (en) * | 2022-04-15 | 2022-07-05 | 中国计量大学 | Self-priming height testing device and method for self-priming pump |
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Patent Citations (6)
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| JP4864185B2 (en) * | 1999-12-01 | 2012-02-01 | 株式会社荏原製作所 | Operation method of water supply equipment |
| US7363807B2 (en) * | 2004-04-28 | 2008-04-29 | Sid Harvey Industries, Inc. | Pump testing apparatus and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548288B (en) * | 2014-06-20 | 2016-09-01 | 致伸科技股份有限公司 | Semi-finished product of speaker leak test system and method |
| CN108626105A (en) * | 2018-03-31 | 2018-10-09 | 温州职业技术学院 | The Automatic Conveying and leakage test equipment of oil pump assy |
| CN108626105B (en) * | 2018-03-31 | 2019-10-29 | 温州职业技术学院 | The Automatic Conveying and leakage test equipment of oil pump assy |
| CN108916021A (en) * | 2018-07-20 | 2018-11-30 | 泗县金皖泵业有限公司 | A kind of water pump suction tester |
| CN114704477A (en) * | 2022-04-15 | 2022-07-05 | 中国计量大学 | Self-priming height testing device and method for self-priming pump |
| CN114704477B (en) * | 2022-04-15 | 2023-09-15 | 中国计量大学 | Self-priming height testing device and method for self-priming pump |
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| Publication number | Publication date |
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| CN103541890B (en) | 2016-02-24 |
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Granted publication date: 20160224 Termination date: 20171030 |