CN204402909U - A kind of injection self-priming pump - Google Patents
A kind of injection self-priming pump Download PDFInfo
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- CN204402909U CN204402909U CN201420680373.3U CN201420680373U CN204402909U CN 204402909 U CN204402909 U CN 204402909U CN 201420680373 U CN201420680373 U CN 201420680373U CN 204402909 U CN204402909 U CN 204402909U
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- pump
- self
- pump housing
- impeller
- priming
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Abstract
The utility model provides a kind of injection self-priming pump, belongs to field of mechanical technique.It solve the problem of existing injection self-priming pump self-priming performance difference.This injection self-priming pump comprises motor, connecting base, impeller in the pump housing and the pump housing, the pump housing is provided with water intake, water outlet and water inlet, motor comprises the motor shaft of electric motor end cap and transverse horizontal setting, the pump housing comprises pump head and pump postoperculum, be connected the mutually the other end and pump postoperculum of connecting base one end and electric motor end cap is connected mutually, motor shaft one end is stretched in the pump housing, impeller is fixed on motor shaft, impeller outer is provided with air guide sleeve, air guide sleeve offers several guiding gutters, partition wall is provided with in the pump housing, partition wall is near water inlet, injection pipe is connected with between air guide sleeve and partition wall, nozzle is provided with between partition wall and pump head, nozzle and injection pipe are positioned on coaxial line, injection pipe periphery wall is provided with the baffle plate preventing gas backflow, the edge of baffle plate has flowing water mouth.The advantages such as it is strong that the utility model has self-priming performance, safe and reliable.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of pump, and particularly one sprays self-priming pump.
Background technique
The working principle of spraying self-priming pump is: first in pump case, fill water before starting mode of pump, start rear motor impeller High Rotation Speed and produce high pressure, make the current direction volute in impeller conduit, at this moment interruption-forming vacuum is entered, air in pump and pipeline, liquid are by water intake and flaring jet pipe intake impeller, guiding gutter again in air guide sleeve gets back to the water outlet of the pump housing, in order to be conducive to the smooth outflow of guiding gutter, be shaped with runner mouth at the opening of guiding gutter to guiding gutter, the water outlet that gas, liquid flow to pump through the runner mouth of air guide sleeve ejects.
Due to spray self-priming pump have compact structure, easy to operate, operate steadily, the advantage such as suction capacity is strong, therefore market there is injection self-priming pump miscellaneous, such as, disclosed a kind of total head self-priming pump in Chinese patent literature data and applied for patent [application number: 201420041250.5; Authorization Notice No.: CN203670222U], it comprises suction flange, plug, flap valve, rubber sheet gasket, outlet(discharge) flange, the pump housing, ball valve, impeller nut, mechanical seal, bearing support, bearing, lubricating cup, pump shaft, bearing gland, pump coupling, elastomer block, motor coupler, protective housing, motor, base, impeller, impeller comprises linear leaf, short blade and disk, linear leaf and short blade are alternately distributed, linear leaf and short blade are gyrate centered by circle disk center to be arranged on name disc centre on disk and to be provided with through hole, and through hole is provided with keyway.
Above-mentioned total head self-priming pump adopt No-mistake Principle design method and the method for adding small leaf to design the self-priming pump of low-specific-speed, effectively can improve No-mistake Principle performance and the efficiency of pump, and improve its suction capacity to a certain extent.Although the rotation of impeller makes gas all the time, liquid flows toward the direction, but during real work, the guiding gutter of pump housing water outlet side there will be air blow back (pouring in down a chimney) phenomenon, the gas suck-back outside pump housing water outlet in impeller, can so seriously have impact on the self-priming effect of spraying self-priming pump.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of self-priming performance strong, safe and reliable injection self-priming pump.
The purpose of this utility model realizes by following technical proposal: a kind of injection self-priming pump, comprise motor, connecting base, impeller in the pump housing and the pump housing, the described pump housing is provided with water intake, water outlet and water inlet, described motor comprises the motor shaft of electric motor end cap and transverse horizontal setting, the described pump housing comprises pump head and pump postoperculum, described connecting base one end and electric motor end cap are connected mutually and the other end of described connecting base and pump postoperculum are connected mutually, it is outer and stretch in the pump housing through pump postoperculum that electric motor end cap is stretched out in described motor shaft one end, described impeller is fixed on motor shaft, described water inlet is provided with bolt, it is characterized in that, described impeller outer is provided with air guide sleeve, described air guide sleeve offers several guiding gutters, partition wall is provided with in the described pump housing, described partition wall is near water inlet, injection pipe is connected with between described air guide sleeve and partition wall, nozzle is provided with between described partition wall and pump head, described nozzle and injection pipe are positioned on coaxial line, described injection pipe periphery wall is provided with the baffle plate preventing gas backflow, the edge of described baffle plate has flowing water mouth.
During the work of this injection self-priming pump, motor shaft impeller is rotated and is produced high pressure, and the air in pump and pipeline, liquid are by water intake and injection pipe intake impeller, then the guiding gutter in air guide sleeve gets back to the water outlet of the pump housing.Prevent the baffle plate gear of air conducting in the outside of air guide sleeve, keep off below the water outlet of the pump housing, effectively prevent the gas backflow of pump housing water outlet in impeller, improve the self-priming effect of spraying self-priming pump.Injection pipe and nozzle form perfect arc pipeline mutually, make the air of suction, liquid more smooth and easy.
Spray in self-priming pump in above-mentioned one, described injection pipe be horn-like and horn mouth towards impeller direction, described nozzle be horn-like and horn mouth towards pump head direction.This structure makes the suction of water intake larger.
Spray in self-priming pump in above-mentioned one, on described motor shaft, between pump postoperculum and electric motor end cap, place is provided with water retaining ring.The situation underflow stream that can prevent the liquid in the pump housing from surprisingly revealing is in motor.
Spray in self-priming pump in above-mentioned one, on described motor shaft, between pump postoperculum and impeller, place is provided with mechanical seal.
Spray in self-priming pump in above-mentioned one, be provided with seal ring between described water inlet and bolt, described pump postoperculum and the joint of the pump housing are provided with seal ring.
Compared with prior art, the advantages such as it is strong that this injection self-priming pump has self-priming performance, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this injection self-priming pump.
Fig. 2 is the structural representation of air guide sleeve in this injection self-priming pump.
Fig. 3 is the structural representation of baffle plate in this injection self-priming pump.
Fig. 4 is the structural representation at water inlet place in this injection self-priming pump.
In figure, 1, motor; 2, connecting base; 3, the pump housing; 4, impeller; 5, water intake; 6, water outlet; 7, water inlet; 8, electric motor end cap; 9, motor shaft; 10, pump head; 11, pump postoperculum; 12, bolt; 13, air guide sleeve; 13a, guiding gutter; 14, partition wall; 15, injection pipe; 16, nozzle; 17, baffle plate; 17a, flowing water mouth; 18, water retaining ring; 19, mechanical seal; 20, seal ring.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, this injection self-priming pump comprises motor 1, connecting base 2, impeller 4 in the pump housing 3 and the pump housing 3, the pump housing 3 is provided with water intake 5, water outlet 6 and water inlet 7, motor 1 comprises the motor shaft 9 of electric motor end cap 8 and transverse horizontal setting, the pump housing 3 comprises pump head 10 and pump postoperculum 11, connecting base 2 one end and electric motor end cap 8 are connected mutually and the other end of connecting base 2 and pump postoperculum 11 are connected mutually, it is outer and stretch in the pump housing 3 through pump postoperculum 11 that electric motor end cap 8 is stretched out in motor shaft 9 one end, impeller 4 is fixed on motor shaft 9, water inlet 7 is provided with bolt 12, impeller 4 is outside equipped with air guide sleeve 13, air guide sleeve 13 offers several guiding gutters 13a, partition wall 14 is provided with in the pump housing 3, partition wall 14 is near water intake 5 place, injection pipe 15 is connected with between air guide sleeve 13 and partition wall 14, nozzle 16 is provided with between partition wall 14 and pump head 10, nozzle 16 and injection pipe 15 are positioned on coaxial line, injection pipe 15 periphery wall is provided with the baffle plate 17 preventing gas backflow, the edge of baffle plate 17 has flowing water mouth 17a.
In order to this injection self-priming pump self-priming performance is stronger, its injection pipe 15 be horn-like and horn mouth towards impeller 4 direction, nozzle 16 be also horn-like and horn mouth towards pump head 10 direction.
In order to this injection self-priming pump security seal is better, on its motor shaft 9, between pump postoperculum 11 and electric motor end cap 8, place is provided with water retaining ring 18, on motor shaft 9, between pump postoperculum 11 and impeller 4, place is provided with mechanical seal 19, be provided with seal ring 20 between water inlet 7 and bolt 12, pump postoperculum 11 is provided with seal ring 20 with the joint of the pump housing 3.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as motor 1, connecting base 2, the pump housing 3, impeller 4, water intake 5, water outlet 6, water inlet 7, electric motor end cap 8, motor shaft 9, pump head 10, pump postoperculum 11, bolt 12, air guide sleeve 13, guiding gutter 13a, partition wall 14, injection pipe 15, nozzle 16, baffle plate 17, flowing water mouth 17a, water retaining ring 18, mechanical seal 19, seal ring 20 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (5)
1. an injection self-priming pump, comprise motor (1), connecting base (2), impeller (4) in the pump housing (3) and the pump housing (3), the described pump housing (3) is provided with water intake (5), water outlet (6) and water inlet (7), described motor (1) comprises the motor shaft (9) of electric motor end cap (8) and transverse horizontal setting, the described pump housing (3) comprises pump head (10) and pump postoperculum (11), described connecting base (2) one end and electric motor end cap (8) are connected mutually and the other end of described connecting base (2) and pump postoperculum (11) are connected mutually, described motor shaft (9) one end is stretched out electric motor end cap (8) and is stretched in the pump housing (3) outward and through pump postoperculum (11), described impeller (4) is fixed on motor shaft (9), described water inlet (7) is provided with bolt (12), it is characterized in that, described impeller (4) is outside equipped with air guide sleeve (13), described air guide sleeve (13) offers several guiding gutters (13a), partition wall (14) is provided with in the described pump housing (3), described partition wall (14) is near water intake (5) place, injection pipe (15) is connected with between described air guide sleeve (13) and partition wall (14), nozzle (16) is provided with between described partition wall (14) and pump head (10), described nozzle (16) and injection pipe (15) are positioned on coaxial line, described injection pipe (15) periphery wall is provided with the baffle plate (17) preventing gas backflow, the edge of described baffle plate (17) has flowing water mouth (17a).
2. one according to claim 1 sprays self-priming pump, it is characterized in that, described injection pipe (15) is for horn-like and horn mouth is towards impeller (4) direction, and described nozzle (16) is for horn-like and horn mouth is towards pump head (10) direction.
3. one according to claim 1 and 2 sprays self-priming pump, it is characterized in that, described motor shaft (9) is positioned at place between pump postoperculum (11) and electric motor end cap (8) and is provided with water retaining ring (18).
4. one according to claim 3 sprays self-priming pump, it is characterized in that, described motor shaft (9) is positioned at place between pump postoperculum (11) and impeller (4) and is provided with mechanical seal (19).
5. one according to claim 4 sprays self-priming pump, it is characterized in that, is provided with seal ring (20) between described water inlet (7) and bolt (12), and described pump postoperculum (11) is provided with seal ring (20) with the joint of the pump housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680373.3U CN204402909U (en) | 2014-11-14 | 2014-11-14 | A kind of injection self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680373.3U CN204402909U (en) | 2014-11-14 | 2014-11-14 | A kind of injection self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402909U true CN204402909U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680373.3U Active CN204402909U (en) | 2014-11-14 | 2014-11-14 | A kind of injection self-priming pump |
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| CN (1) | CN204402909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179255A (en) * | 2015-10-20 | 2015-12-23 | 芜湖环球汽车配件有限公司 | Self-priming jet pump |
-
2014
- 2014-11-14 CN CN201420680373.3U patent/CN204402909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179255A (en) * | 2015-10-20 | 2015-12-23 | 芜湖环球汽车配件有限公司 | Self-priming jet pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |