CN212454844U - Large-flow strong self-priming pump - Google Patents
Large-flow strong self-priming pump Download PDFInfo
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- CN212454844U CN212454844U CN202021134259.2U CN202021134259U CN212454844U CN 212454844 U CN212454844 U CN 212454844U CN 202021134259 U CN202021134259 U CN 202021134259U CN 212454844 U CN212454844 U CN 212454844U
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Abstract
The utility model discloses a large-traffic strong self priming pump is mixed from inhaling centrifugal pump and strong suction device 7 by outer and constitutes, constitutes coaxial integrated structure that allies oneself with altogether through the main shaft that mixes from inhaling the centrifugal pump outward. The strong suction and discharge device comprises a strong suction and discharge device connecting seat, a strong suction and discharge device pinion, a deceleration big gear, a big rotor shaft, a synchronous gear, a small rotor shaft, a deceleration synchronous box bearing, a deceleration synchronous box, a separate cavity bearing, a separate cavity, a framework oil seal, a strong suction and discharge device body, a rotor machine seal, a big rotor, a small rotor and a strong suction and discharge device end cover. The utility model discloses collect the advantage of outer formula of mixing from inhaling centrifugal pump and impeller pump and put into one, adopt the differential principle simultaneously, the functioning speed can reach 750 revolutions/min, and the flow can improve about 8 ~ 10%, and shortens by a wide margin from inhaling the time, the utility model has the advantages of structural design is reasonable, use cost is low, energy saving and consumption reduction, need not special control system.
Description
Technical Field
The utility model relates to a self priming pump, concretely relates to large-traffic strong self priming pump. Has the functions of absorbing shallow water and solid, liquid and gas mixed liquid, and can be widely applied to occasions of flood fighting, emergency rescue, waterlogging drainage, fire fighting and the like.
Background
The self-priming height of the existing large-flow self-priming centrifugal pump is below 6m, although the self-priming height of an external vacuum self-priming system can reach more than 8m, the fault rate of the vacuum system is high (the vacuum system needs to be waterproof, and various probes and electronic instruments have high requirements on environment), the structure is complex, a special control system is needed, and the vacuum pump can only pump air and can not drain water, so that the practical use is inconvenient; the existing rotor pump has good self-absorption performance, but has large volume, large vibration noise and low efficiency when being used in a large flow state due to low rotating speed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough in current self-priming centrifugal pump and the rotor pump technique, provide "a large-traffic strong self priming pump", this self priming pump collection mixes the formula outward and self-priming centrifugal pump and rotor pump's advantage, adopts the differential principle simultaneously, has improved the functioning speed of strong suction device (the rotational speed can reach 750 revolutions per minute), makes the utility model discloses a flow can improve about 8 ~ 10%, shortens by a wide margin from inhaling the time (to DN 400's pipe, can reach 15s/m), and this strong self priming pump has structural design is reasonable, low in use cost, energy saving and consumption reduction, maintains simple and convenient, need not special control system, advantage safe in utilization.
In order to achieve the above purpose, the present invention is realized by the following technical solutions: the main technical scheme is that the large-flow strong self-priming pump is composed of a strong self-priming pump water outlet 20, a strong self-priming pump water suction port 21, an external-mixing self-priming centrifugal pump 2 and a strong suction device 7, and a main shaft 1 of the external-mixing self-priming centrifugal pump 2 forms a coaxial and co-connected integrated structure.
The further technical scheme is that the strong suction and exhaust device 7 comprises a strong suction and exhaust device connecting seat 3, a strong suction and exhaust device pinion 4, a reduction gear wheel 5, a large rotor shaft 6, a synchronous gear 8, a small rotor shaft 9, a reduction synchronous box bearing 10, a reduction synchronous box 11, a separate cavity bearing 12, a separate cavity 13, a framework oil seal 14, a strong suction and exhaust device body 15, a rotor mechanical seal 16, a large rotor 17, a small rotor 18 and a strong suction and exhaust device end cover 19.
A main shaft 1 of the external-mixing type self-priming centrifugal pump 2 is fixedly connected with a strong suction and discharge device connecting seat 3 through a bearing, and is fixedly connected with a small gear 4 of the strong suction and discharge device through a key and a screw, and the strong suction and discharge device connecting seat 3 is fixedly connected with the external-mixing type self-priming centrifugal pump 2 through a screw. The speed reduction synchronous box 11 is fixedly connected with the strong suction and discharge device connecting seat 3 and the separating cavity 13 respectively, and the separating cavity 13 is fixedly connected with the strong suction and discharge device body 15 and the strong suction and discharge device end cover 19 in sequence.
The further technical scheme is that the large rotor shaft 6 and the small rotor shaft 9 are fixedly connected with a speed reduction synchronous box 11 and a compartment 13 through a speed reduction synchronous box bearing 10 and a compartment bearing 12 respectively.
Two groups of rotor machine seals 16 are arranged in the strong suction and discharge device body 15 and are respectively fixedly connected with the large rotor shaft 6 and the small rotor shaft 9.
And the framework oil seal 14 is arranged in the partition cavity 13 and is respectively connected with the large rotor shaft 6 and the small rotor shaft 9 in a sliding and sealing manner. The framework oil seal 14 isolates the inner cavity of the speed reduction synchronous box 11 from the inner cavity of the compartment 13, and ensures that gear lubricating oil of the speed reduction synchronous box 11 is not influenced by the leakage of the rotor machine seal 16.
The further technical scheme is that a small gear 4, a large reduction gear 5 and a synchronous gear 8 of the strong suction and exhaust device are arranged in a synchronous reduction box 11, the large reduction gear 5 and the synchronous gear 8 are fixedly connected with a large rotor shaft 6 and a small rotor shaft 9 respectively through expansion sleeves, and the small gear 4 and the large reduction gear 5 of the strong suction and exhaust device form a reduction system of the strong suction and exhaust device 7; the reduction gear wheel 5 and the synchronous gear 8 form a synchronous system of the strong suction and exhaust device 7.
The big rotor 17 and the small rotor 18 are arranged in the strong suction and discharge device body 15 and are respectively fixedly connected with the big rotor shaft 6 and the small rotor shaft 9. The power is input from the main shaft 1 of the external mixing self-priming centrifugal pump 2 to drive the small gear 4 of the strong suction and discharge device fixedly connected with the main shaft, so as to drive the large reduction gear 5 coupled with the large reduction gear to realize the speed reduction movement, further drive the synchronous gear 8 to run in the constant speed and reverse direction, further drive the large rotor 17 and the small rotor 18 respectively fixedly connected with the large rotor shaft 6 and the small rotor shaft 9 to rotate in the constant speed and reverse direction, further complete the periodic suction and discharge of the strong suction and discharge device, and simultaneously carry out the encapsulation treatment on the large rotor 17 and the small rotor 18, thereby ensuring that the vacuum degree is not less than 8.5m during self-priming.
The further technical scheme is that a water suction pipe 23 of the strong suction and discharge device and a water discharge pipe 22 of the strong suction and discharge device are respectively and fixedly connected with a water suction cavity and a water discharge cavity of the external mixed self-priming centrifugal pump 2 and the strong suction and discharge device 7, so that the water suction cavity and the water discharge cavity of the external mixed self-priming centrifugal pump 2 and the strong suction and discharge device 7 are correspondingly communicated and connected.
The further technical scheme is that the strong suction and exhaust device 7 adopts an arrangement structure that a large rotor 17 and a small rotor 18 are arranged in an opposite mode.
The utility model discloses the principle and reason that its device design was installed are as follows:
because of having adopted differential rotor design principle, perfect will mix formula outward and combine together from inhaling centrifugal pump and impeller pump's advantage, rub speed reduction transmission and synchronous drive simultaneously as an organic whole, make the utility model discloses a structure is simpler to can overhaul on line, inhale by force and arrange the device flow and compare with the impeller pump under the same condition and can improve 20 ~ 35%, whole pump flow can improve 8 ~ 10%, can improve more than one time from inhaling the time, in addition the formula of mixing outward is from inhaling centrifugal pump and inhale by force and arrange device sharing power, pump itself need not control, uses to maintain more portably.
Compared with the prior art, the utility model have following advantage:
1. due to the adoption of the design principle of the differential rotor, the strong self-priming pump integrates the advantages of an external-mixing self-priming centrifugal pump and a rotor pump, the flow of the whole pump can be improved by 8-10%, and in addition, the external-mixing self-priming centrifugal pump and the strong suction and discharge device share the power, the pump does not need to be controlled, and the use and the maintenance are simpler and more convenient.
2. The utility model relates to a large-traffic strong self priming pump is one kind and is mixed self priming pump and strong integral type integrated configuration who arranges the device that inhales outward. The high-flow strong self-priming pump has the functions of ultrahigh suction lift of 8.5m and ultra-fast self-priming, takes DN400 caliber as an example, the suction lift of 1m can be completed within about 15 seconds, and the self-priming dry starting can be realized without water drainage and irrigation.
3. When the pump starts, outer muddy self-priming centrifugal pump and strong suction device synchronous operation, because strong suction device's high self-priming ability, the air in the pump intake pipe is emptied very fast, and water is inhaled the pump body, outer muddy self-priming centrifugal pump begins work, the utility model discloses a total flow is from the sum of self-priming centrifugal pump and strong suction device flow, and whole pump flow can improve 8 ~ 10%.
4. Because strong suction and exhaust device has gas, liquid, solid three-phase and thoughtlessly defeated ability, from this, the utility model discloses can suck shallow water, it has overcome the vacuum pump and only can the air pumping, can not the drainage, has the shortcoming of high fault rate, control node many, power consumption, has also solved simultaneously that current rotor pump is bulky under the large-traffic condition, vibration noise is big, the problem of inefficiency.
5. Because of utilizing differential principle design, the utility model discloses its strong suction and discharge device rotational speed can reach 750 revolutions/min, has broken through the popular rotational speed that becomes of current impeller pump (following the micropump 600rpm, below the micropump 450rpm), and the strong suction and discharge device flow itself can improve 20 ~ 35%, because the outer work speed of inhaling centrifugal pump that mixes is 1450rpm, large-traffic down than impeller pump area reduces more than 30%, and efficiency can improve 6 ~ 10%, and the utility model discloses the strong suction and discharge device area only has 5 ~ 8% of whole pump area, and the flow only accounts for 8 ~ 10%, and is visible from this: the utility model discloses area can save more than 20% under the same condition, and efficiency can improve 5 ~ 9%, and economic benefits is obvious.
6. The utility model discloses anti running structure design futilely, this pump can do not damage more than 30 minutes of operation, have and can inhale shallow water and solid, liquid, gas mixture functions such as liquid, but wide application is in occasions such as flood fighting, drainage waterlogging, fire control.
7. The utility model discloses rub speed reduction transmission and synchronous drive as an organic whole (three gear drive) for inhale the structure of arranging the device by force simpler, the size is littleer, and can overhaul on line. The existing rotor pump needs an independent reduction gearbox and a synchronous box, the reduction gear pair is positioned in the reduction gearbox, the synchronous gear pair is positioned in the synchronous box, and the reduction large gear drives the synchronous gear pair (four-gear transmission).
Drawings
Fig. 1 is a schematic sectional view of the front view of the present invention.
Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.
Fig. 3 is a front sectional structural schematic view of the strong suction device 7 in fig. 1.
Fig. 4 is a schematic top view of the present invention.
Fig. 5 is a schematic diagram of the right-side view structure of the present invention.
In the figure: 1. the centrifugal pump comprises a main shaft, 2, an external mixing self-priming centrifugal pump, 3, a strong suction and discharge device connecting seat, 4, a strong suction and discharge device pinion, 5, a deceleration bull gear, 6, a big rotor shaft, 7, a strong suction and discharge device, 8. a synchronous gear, 9. a small rotor shaft, 10. a deceleration synchronous box bearing, 11. a deceleration synchronous box, 12. a partition chamber bearing, 13. a partition chamber, 14. a framework oil seal, 15. a strong suction and discharge device body, 16. a rotor mechanical seal, 17. a big rotor, 18. a small rotor, 19. a strong suction and discharge device end cover, 20. a strong self-priming pump water outlet, 21. a strong self-priming pump water suction port, 22. a strong suction and discharge device water discharge pipe, and 23. a strong suction and discharge device water.
Detailed Description
The invention will be further elucidated below by means of non-limiting examples, with the understanding that the invention is not limited thereto.
As shown in fig. 1, 3, 4 and 5, a large-flow strong self-priming pump is composed of an external-mixing type self-priming centrifugal pump 2 and a strong suction device 7, and a main shaft 1 of the external-mixing type self-priming centrifugal pump 2 forms a coaxial-co-connection integrated structure.
The strong suction and exhaust device 7 comprises a strong suction and exhaust device connecting seat 3, a strong suction and exhaust device pinion 4, a reduction gear wheel 5, a large rotor shaft 6, a synchronous gear 8, a small rotor shaft 9, a reduction synchronous box bearing 10, a reduction synchronous box 11, a separate cavity bearing 12, a separate cavity 13, a framework oil seal 14, a strong suction and exhaust device body 15, a rotor mechanical seal 16, a large rotor 17, a small rotor 18 and a strong suction and exhaust device end cover 19.
A main shaft 1 of the external-mixing type self-priming centrifugal pump 2 is fixedly connected with a strong suction and discharge device connecting seat 3 through a bearing, and is fixedly connected with a small gear 4 of the strong suction and discharge device through a key and a screw, and the strong suction and discharge device connecting seat 3 is fixedly connected with the external-mixing type self-priming centrifugal pump 2 through a screw.
The speed reduction synchronous box 11 is fixedly connected with the strong suction and discharge device connecting seat 3 and the separating cavity 13 respectively, and the separating cavity 13 is fixedly connected with the strong suction and discharge device body 15 and the strong suction and discharge device end cover 19 in sequence.
The small rotor shaft 9 and the large rotor shaft 6 are fixedly connected with a speed reduction synchronous box 11 and a compartment 13 through a speed reduction synchronous box bearing 10 and a compartment bearing 12 respectively.
The rotor machine seal 16 is arranged in the strong suction and discharge device body 15 and is respectively fixedly connected with the large rotor shaft 6 and the small rotor shaft 9.
And the framework oil seal 14 is arranged in the partition cavity 13 and is respectively connected with the large rotor shaft 6 and the small rotor shaft 9 in a sliding and sealing manner. The framework oil seal 14 isolates the inner cavity of the speed reduction synchronous box 11 from the inner cavity of the compartment 13, and ensures that gear lubricating oil of the speed reduction synchronous box 11 is not influenced by the leakage of the rotor machine seal 16.
The strong suction and exhaust device pinion 4, the reduction gear wheel 5 and the synchronous gear 8 are arranged in a reduction synchronous box 11, the reduction gear wheel 5 and the synchronous gear 8 are fixedly connected with the large rotor shaft 6 and the small rotor shaft 9 respectively through expansion sleeves, and the strong suction and exhaust device pinion 4 and the reduction gear wheel 5 form a reduction system of the strong suction and exhaust device 7; the deceleration gearwheel 5 and the synchronous gear 8 form a synchronous system of the strong suction and exhaust device 7.
The big rotor 17 and the small rotor 18 are arranged in the strong suction and discharge device body 15 and are respectively fixedly connected with the big rotor shaft 6 and the small rotor shaft 9. The power is input from the main shaft 1 of the external mixing self-priming centrifugal pump 2 to drive the small gear 4 of the strong suction and discharge device fixedly connected with the main shaft, so as to drive the large reduction gear 5 coupled with the large reduction gear to realize the speed reduction movement, further drive the synchronous gear 8 to run in the constant speed and reverse direction, further drive the large rotor 17 and the small rotor 18 respectively fixedly connected with the large rotor shaft 6 and the small rotor shaft 9 to rotate in the constant speed and reverse direction, further complete the periodic suction and discharge of the strong suction and discharge device, and simultaneously carry out the encapsulation treatment on the large rotor 17 and the small rotor 18, thereby ensuring that the vacuum degree is not less than 8.5m during self-priming.
The water suction pipe 23 of the strong suction and discharge device and the water discharge pipe 22 of the strong suction and discharge device are respectively and fixedly connected with the water suction cavity and the water discharge cavity of the external-mixing type self-priming centrifugal pump 2, so that the water suction cavity and the water discharge cavity of the external-mixing type self-priming centrifugal pump 2 and the strong suction and discharge device 7 are correspondingly communicated and connected.
The utility model discloses each part adopts the mould shaping, and machine-tooling makes. The production is designed according to the use occasion and the conveying medium of the user.
The utility model discloses an use operation process as follows: the motor or the diesel engine drives the main shaft of the external mixing self-priming pump to rotate (1450rpm), the impeller of the self-priming centrifugal pump fixedly connected with the motor or the diesel engine and the pinion of the strong suction and discharge device are driven to rotate at a constant speed, the pinion of the strong suction and discharge device drives the large reduction gear of the strong suction and discharge device to rotate at a reduced speed (the reduction ratio is about 2), the large reduction gear drives the synchronous gear to rotate reversely at a constant speed, so as to drive the large rotor shaft and the small rotor shaft fixedly connected with the large reduction gear to rotate reversely at a constant speed, and further drive the large rotor shaft and the small rotor shaft fixedly connected with the large rotor shaft to rotate reversely at a constant speed, so as to complete the periodic suction and discharge of the strong suction and discharge device, during the self-suction water-feeding period, the strong suction and discharge device sucks.
Experimental examples
According to the utility model discloses a large-traffic strong self priming pump that technical scheme tried out, on-the-spot trial of relevant unit, sewage is from inhaling degree of depth 6.2m, and river is from inhaling degree of depth 5.6m, centrifugal pump flow 2000m3H, lift 11m, strong suction and discharge device flow 200m3The average water outlet time is within 50s, and the actual measured whole pump flow is 2180m3And/h, the whole pump flow fluctuation is small at high lift, which is mainly because the flow of the strong suction and discharge device basically does not change along with the lift.
The utility model discloses detect through this unit detection center, with present self priming pump and rotor pump technical index contrast as shown in the following table:
the utility model discloses with current self priming pump, rotor pump's technical index contrast table
To sum up, the utility model discloses a differential rotor design principle, this strong self priming pump collection mixes the advantage of self priming pump and impeller pump outward, has that structural design is reasonable, with low costs, energy saving and consumption reduction, advantage safe in utilization, the utility model discloses its strong suction and exhaust device rotational speed can reach 750 revolutions/min, has broken through the popular rotational speed of forming of current impeller pump (following little pump 600rpm, below the big pump 450rpm), and strong suction and exhaust device flow itself can improve 20 ~ 35%, because the work rotational speed of mixing self priming centrifugal pump outward is 1450rpm, and large-traffic area than the impeller pump down reduces more than 30%, and efficiency can improve 6 ~ 10%, and the utility model discloses strong suction and exhaust device area only has 5 ~ 8% of whole pump area, and the flow only accounts for 8 ~ 10%, and is visible from this: the utility model discloses area can save more than 20% under the same condition, and efficiency can improve 5 ~ 9%, and economic benefits is obvious.
Claims (9)
1. A large-flow strong self-priming pump is characterized in that the strong self-priming pump is composed of an external mixing type self-priming centrifugal pump (2)
And a strong suction and discharge device (7), and a coaxial and co-connected integrated structure is formed by the main shaft (1) of the external mixing type self-priming centrifugal pump (2).
2. A high flow rate strong self-primer pump according to claim 1, characterized in that said strong suction and discharge means (7) comprises: the strong suction and discharge device comprises a strong suction and discharge device connecting seat (3), a strong suction and discharge device pinion (4), a reduction gear wheel (5), a large rotor shaft (6), a synchronous gear (8), a small rotor shaft (9), a reduction synchronous box bearing (10), a reduction synchronous box (11), a separate cavity bearing (12), a separate cavity (13), a framework oil seal (14), a strong suction and discharge device body (15), a rotor mechanical seal (16), a large rotor (17), a small rotor (18) and a strong suction and discharge device end cover (19), wherein a main shaft (1) of the external hybrid self-suction centrifugal pump (2) is fixedly connected with the strong suction and discharge device connecting seat (3) through a bearing and the strong suction and discharge device pinion (4) through a key and a screw, the strong suction and discharge device connecting seat (3) is fixedly connected with the external hybrid self-suction centrifugal pump (2) through a screw, the reduction synchronous box (11) is respectively and fixedly connected with the strong suction and discharge device connecting seat (3), the separate cavity (13) is fixedly connected with the strong suction and discharge device body (15) and the end cover (19) of the strong suction and discharge device in sequence.
3. The pump according to claim 2, wherein the small rotor shaft (9) and the large rotor shaft (6) are respectively and fixedly connected with the deceleration synchronizing box (11) and the separate chamber (13) through a deceleration synchronizing box bearing (10) and a separate chamber bearing (12).
4. The high-flow strong self-priming pump according to claim 2, wherein the two sets of rotor seals (16) are disposed in the strong suction and discharge device body (15) and are respectively fixedly connected to the large rotor shaft (6) and the small rotor shaft (9).
5. The pump according to claim 2, wherein the skeleton oil seal (14) is disposed in the separate chamber (13) and is slidably and sealingly coupled to the large rotor shaft (6) and the small rotor shaft (9), respectively.
6. The high-flow strong self-priming pump according to claim 2, wherein the small gear (4) of the strong suction and discharge device, the large reduction gear (5) and the synchronizing gear (8) are arranged in a reduction synchronizing box (11), the large reduction gear (5) and the synchronizing gear (8) are respectively fixedly connected with the large rotor shaft (6) and the small rotor shaft (9) by adopting expansion sleeves, and the small gear (4) of the strong suction and discharge device and the large reduction gear (5) form a reduction system of the strong suction and discharge device (7); the deceleration gearwheel (5) and the synchronous gear (8) form a synchronous system of the strong suction and discharge device (7).
7. The high-flow strong self-priming pump according to claim 2, wherein the large rotor (17) and the small rotor (18) are mounted in the strong suction and discharge device body (15) and are respectively fixedly connected with the large rotor shaft (6) and the small rotor shaft (9).
8. The pump of claim 7, wherein the suction pipe (23) of the strong suction and discharge device and the discharge pipe (22) of the strong suction and discharge device are connected to the suction cavity and the discharge cavity of the external mixing self-priming centrifugal pump (2) and the strong suction and discharge device (7), respectively.
9. The pump of claim 7, wherein the strong suction and discharge device (7) is configured by a large rotor (17) and a small rotor (18) in an opposite arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134259.2U CN212454844U (en) | 2020-06-18 | 2020-06-18 | Large-flow strong self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134259.2U CN212454844U (en) | 2020-06-18 | 2020-06-18 | Large-flow strong self-priming pump |
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| Publication Number | Publication Date |
|---|---|
| CN212454844U true CN212454844U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021134259.2U Active CN212454844U (en) | 2020-06-18 | 2020-06-18 | Large-flow strong self-priming pump |
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|---|---|
| CN (1) | CN212454844U (en) |
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2020
- 2020-06-18 CN CN202021134259.2U patent/CN212454844U/en active Active
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