CN103541890B - Self-priming pump - Google Patents
Self-priming pump Download PDFInfo
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- CN103541890B CN103541890B CN201310528308.9A CN201310528308A CN103541890B CN 103541890 B CN103541890 B CN 103541890B CN 201310528308 A CN201310528308 A CN 201310528308A CN 103541890 B CN103541890 B CN 103541890B
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- pressure
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- priming pump
- water
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Abstract
The present invention relates to mechanical field, in particular to self-priming pump.This self-priming pump, vacuum test assembly is provided with between water sucking mouth and the safety check of water absorption channel, for test safety check and well inner horizontal between pressure and show, described self-priming pump is furnished with pressure-operating condition corresponding relation, and the described operating condition in pressure-operating condition corresponding relation comprises: work well, the gas leakage of the poorly sealed or bottom tube in water sucking mouth or bottom tube blocking, voltage instability, pump part damage, pressurized tank water inlet, water deficiency, the well water degree of depth in well.The beneficial effect that the self-priming pump that the embodiment of the present invention provides can reach: accurately can determine the concrete cause that self-priming pump cannot normally work.
Description
Technical field
The present invention relates to mechanical field, in particular to self-priming pump.
Background technique
The existing various self-priming pump of current China (jet pump, screw pump, self priming pump etc.); often a variety of causes can be run in actual practical process; 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 self-priming pump to draw water the situation of poor effect; make troubles to users; and user Duo Shi unprofessional user; be difficult to the concrete cause accurately judging that self-priming pump running is not good; 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.
Provide a kind of self-priming pump in an embodiment of the present invention, vacuum test assembly is provided with between water sucking mouth and the safety check of water absorption channel, for test safety check and well inner horizontal between pressure and show, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, the gas leakage of the poorly sealed or bottom tube in water sucking mouth or bottom tube blocking, voltage instability, pump part damage, pressurized tank water inlet, water deficiency, the well water degree of depth in well.
The self-priming pump that the embodiment of the present invention provides, can reach following beneficial effect:
Inventor is through studying discovery for many years, the concrete cause that self-priming pump cannot normally work can be judged by the pressure between test safety check and well inner horizontal, therefore, by being arranged at the vacuum test assembly between water sucking mouth and the safety check of water absorption channel, carry out testing the pressure between safety check and well inner horizontal, can accurately determine concrete cause according to pressure-operating condition corresponding relation.
Accompanying drawing explanation
Fig. 1 shows the structural representation of self-priming pump in one embodiment of the invention.
Embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
One embodiment of the invention provides a kind of self-priming pump, vacuum test assembly is provided with between water sucking mouth and the safety check of water absorption channel, for test safety check and well inner horizontal between pressure and show, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, the poorly sealed or bottom tube gas leakage in water sucking mouth, voltage instability, pump part damage, pressurized tank water inlet, not enough, the well water degree of depth of water in well.
Inventor is through studying discovery for many years, the concrete cause that self-priming pump cannot normally work can be judged by the pressure between test safety check and well inner horizontal, therefore, by being arranged at the vacuum test assembly between water sucking mouth and safety check, carry out testing the pressure between safety check and well inner horizontal, can accurately determine concrete cause according to pressure-operating condition corresponding relation.
Below, this self-priming pump is described in detail by some specific embodiments:
A kind of self-priming pump, as Fig. 1, shown in, vacuum test assembly is provided with between water sucking mouth 3 and water absorption channel (namely the self-priming mouth of a river flows into the flow channel of self-priming pump) safety check 4, for test safety check 4 and well inner horizontal between pressure and show, self-priming pump is furnished with pressure-operating condition corresponding relation, and the operating condition in pressure-operating condition corresponding relation comprises: work well, the gas leakage of the poorly sealed or bottom tube in water sucking mouth 3 or bottom tube blocking, voltage instability, pump part damage, pressurized tank water inlet, water deficiency, the well water degree of depth in well.
It should be noted that, the presentation mode of pressure-operating condition corresponding relation can have a variety of, such as: a form, is imprinted on a tinsel, and tinsel is fixed in the housing outer surface of self-priming pump by welding or other means of fixation; Or be imprinted in self-priming pump specification, or be imprinted in self-priming pump guide for use, or a card being printed on corresponding relation, wait various mode, specifically do not limit, 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 display on pressure.
In certain embodiments, this vacuum test assembly comprises: be arranged at the through hole 2 on housing, through hole 2 is 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 directly can test the pressure between safety check 4 and well inner horizontal, and shows, and easy-to-operat person observes, and then comparison 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.
Based on above-mentioned structure, need the sealing considering to connect between negative pressure of vacuum table 1 and through hole 2, only have sealing enough good, ability Measurement accuracy, therefore, in certain embodiments, between through hole 2 and negative pressure of vacuum table 1, also Sealing is set, adopts the seal to seal.
The mode of Sealing has a lot, and in certain embodiments, adopt teflin tape, 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, excellent 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 the joint of through hole 2 and negative pressure of vacuum table 1, because sealing gasket possesses higher expansion and contractibility, therefore, it is possible to reach good sealing effect.
About the annexation of negative pressure of vacuum table 1 and through hole 2, can various ways be adopted 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, if do being threaded enough meticulous, can directly reach certain sealing effect.
Especially, in certain embodiments, be screwed in tapped hole (through hole 2) after the joint winding teflin tape of negative pressure of vacuum table 1, seal more fully.
Again such as: in certain embodiments, negative pressure of vacuum table 1 is inserted in through hole 2, and fits with the internal surface of through hole 2, if do enough meticulous, this laminating also can reach certain sealing effect.
Especially, in certain embodiments, the laminating surface of contact of the two arranges sealing gasket to seal more fully.
Again such as: through hole 2 and negative pressure of vacuum table 1 weld, and welding can seal preferably, but, welding is not easy to carry out changeing of negative pressure of vacuum table 1, and it is all not too convenient to change and keep in repair.
Due to, after self-priming pump draws water and cuts out, due to the effect of safety check 4 in intake pipe, water in self-priming pump falls less than (safety check 4 cuts out) in well, Groundwater plane can see the depth of water outlet to the vacuum magnitude that the water of water sucking mouth 3 will fall here, 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 the depth of water about 7 meters,-0.06 is exactly the depth of water about 6 meters, the water suction degree of depth due to self-priming pump is all generally 1-10 rice, the actual water suction degree of depth about 8 to 9 meters.Because negative pressure of vacuum table 1 can Measurement accuracy pressure, the sphere of activities of pointer is preferably in 2/3rds scopes of 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, pressure-operating condition corresponding relation when vacuum test assembly being comprised to through hole and negative pressure of vacuum table is described:
Situation 1. normal pumping
When electric moter voltage rotating speed under normal circumstances, between the pointer of negative pressure of vacuum table display-0.05Mpa to-0.08Mpa.
The poorly sealed gas leakage in situation 2. water sucking mouth or bottom tube leak gas or bottom tube blocking
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 face and ground level
When motor draw water voltage normal time, 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 instruction represents the distance of safety check rear end to well inner horizontal, represent the suction distance of missile silo inner horizontal and ground level at that time, the less expression of the numerical value indicated after cursor backward effect of drawing water is better.
4. voltage instability
When overtension or too low time pump suction situation constantly change, negative pressure of vacuum table does not stop dynamic along with the height of voltage, when brownout, do not reach motor and to draw water rotating speed, pointer is presented between 0 to-0.05Mpa, cuts off the electricity supply if desired.
5. pump part damages
Draw water parts damages in 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 that pressurized tank is not intake between being presented at 0 to-0.05Mpa to electric moter voltage rotating speed, as being presented between-0.05Mpa to-0.08Mpa to show that pressurized tank is intake.
7. whether lack of water in well
Electric moter voltage rotating speed under normal circumstances, negative pressure of vacuum list index is presented between-0.09Mpa to-0.1Mpa and represents lack of water, or pointer is suddenly violent turns back to original position, represent lack of water in well, if pointer is presented at because horizontal plane and ground level distance exceed pump sump scope between-0.09Mpa to-0.1Mpa, 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 from pressure transducer and showing pressure;
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, reach on-the-spot or long-range observation by wired or wireless Placement.
In order to 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, pressure and the pressure-operating condition corresponding relation preset are compared, produces the operating condition of corresponding pressure, and show operating condition.Thus pressure and operating condition are carried out, from being dynamically connected, by pre-set programs automatic decision, judging without the need to operator oneself, like this, decrease the artificial fault rate judged on the one hand, on the other hand, save manual work's amount and human cost.
Inventor is through studying discovery for many years, the concrete cause that self-priming pump cannot normally work can be judged by the pressure between test safety check and well inner horizontal, therefore, by being arranged at the vacuum test assembly between water sucking mouth and safety check, carry out testing the pressure between safety check and well inner horizontal, can accurately determine concrete cause according to pressure-operating condition corresponding relation.
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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a self-priming pump, it is characterized in that, vacuum test assembly is provided with between water sucking mouth and the safety check of water absorption channel, for test safety check and well inner horizontal between pressure and show, 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, the gas leakage of the poorly sealed or bottom tube in water sucking mouth or bottom tube blocking, voltage instability, pump part damage, pressurized tank water inlet, water deficiency, the well water degree of depth in well; Described vacuum test assembly comprises: be arranged at the through hole on housing, and described through hole is between described water sucking mouth and described safety check, and is connected with described water absorption channel, described through hole and negative pressure of vacuum list catenation; Described vacuum test assembly also comprises pressure transducer and processor; 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 from described pressure transducer and showing described pressure; 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; 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 the described pressure-operating condition corresponding relation preset are compared, produce the operating condition of corresponding described pressure, and show described operating condition.
2. self-priming pump according to claim 1, is characterized in that, also arranges Sealing between described through hole and described negative pressure of vacuum table.
3. self-priming pump according to claim 2, 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.
4. self-priming pump according to claim 2, is characterized in that, described Sealing comprises: sealing gasket.
5. self-priming pump according to claim 2, 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.
6. self-priming pump according to claim 1, is characterized in that, described through hole and the welding of described negative pressure of vacuum table.
7. self-priming pump according to claim 1, is characterized in that, the graduated range of described negative pressure of vacuum table is 0 to-0.16MPa.
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 |
|---|---|
| CN103541890A CN103541890A (en) | 2014-01-29 |
| CN103541890B true 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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Families Citing this family (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 |
| 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 |
| 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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| CN1587948A (en) * | 2004-10-12 | 2005-03-02 | 浙江大学 | Self circulation pump specific curve test instrument |
| US7363807B2 (en) * | 2004-04-28 | 2008-04-29 | Sid Harvey Industries, Inc. | Pump testing apparatus and method |
| JP4864185B2 (en) * | 1999-12-01 | 2012-02-01 | 株式会社荏原製作所 | Operation method of water supply equipment |
| CN102367793A (en) * | 2011-08-23 | 2012-03-07 | 杭州哲达科技股份有限公司 | Efficient method and pump valve integrated energy-saving device for water pump |
| CN202468257U (en) * | 2012-02-19 | 2012-10-03 | 江乾禄 | Water pump energy-saving control device |
| CN102840140A (en) * | 2012-08-16 | 2012-12-26 | 合肥通用机械研究院 | Outer ring type efficient starting system for self-priming pump and starting method thereof |
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2013
- 2013-10-30 CN CN201310528308.9A patent/CN103541890B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN1587948A (en) * | 2004-10-12 | 2005-03-02 | 浙江大学 | Self circulation pump specific curve test instrument |
| CN102367793A (en) * | 2011-08-23 | 2012-03-07 | 杭州哲达科技股份有限公司 | Efficient method and pump valve integrated energy-saving device for water pump |
| CN202468257U (en) * | 2012-02-19 | 2012-10-03 | 江乾禄 | Water pump energy-saving control device |
| CN102840140A (en) * | 2012-08-16 | 2012-12-26 | 合肥通用机械研究院 | Outer ring type efficient starting system for self-priming pump and starting method thereof |
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| CN103541890A (en) | 2014-01-29 |
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