CN203308772U - Double-suction pump - Google Patents
Double-suction pump Download PDFInfo
- Publication number
- CN203308772U CN203308772U CN2013203646562U CN201320364656U CN203308772U CN 203308772 U CN203308772 U CN 203308772U CN 2013203646562 U CN2013203646562 U CN 2013203646562U CN 201320364656 U CN201320364656 U CN 201320364656U CN 203308772 U CN203308772 U CN 203308772U
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- CN
- China
- Prior art keywords
- suction pump
- main shaft
- impeller
- main impeller
- double suction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a water pump and particularly relates to a double-suction pump. The double-suction pump comprises a pump body, a main shaft arranged in the pump body and a main impeller sleeved on the main shaft, wherein the two sides of the main impeller are not closed to form a water inlet of the double-suction pump; an annular hollow groove is formed in the outer circle of the main impeller to form a water outlet of the double-suction pump; a water path channel is formed by communicating the water inlet with the water outlet; induction wheels are sleeved on the two ends of the main shaft. Compared with the prior art, the induction wheels are arranged on the two ends of the main shaft so that a medium can effectively enter the water inlet of the main impeller under the effect of pressure when the induction wheels are rotated, and furthermore, steam does not enter the inner part of the main impeller and a cavitation phenomenon is avoided.
Description
Technical field
The utility model relates to a kind of water pump, a kind of double suction pump specifically.
Background technique
At present, big-and-middle-sized double suction pump, owing to having large flow, uses so can be used as water pump, but because the flow of double suction pump is too large, in running, cavitation phenomenons occurs pump body often.Especially under the inhalation type operating conditions, more easily produce cavitation phenomenons.Wherein, the impeller cavitation of pump body is stood in the breach, and the cavitation because of impeller makes unit normally not move often, causes the shutdown overhaul.
The model utility content
The purpose of this utility model is to provide a kind of double suction pump, to avoid the impeller generation cavitation phenomenons of pump body.
To achieve these goals, the utility model has designed a kind of double suction pump, comprises the pump housing, is arranged on the main shaft in the described pump housing, is set in the main impeller on described main shaft;
The both sides of described main impeller, for what do not seal, form the water intake of described double suction pump; The cylindrical of described main impeller has the hollow slots of an annular, forms the water outlet of described double suction pump;
Described water intake and described water outlet conducting form waterway channel, the sheathed inducer in described main shaft two ends.
When the described inducer of described main shaft drives was rotated, medium, under the turning effort of described inducer, flowed into from the water intake of described main impeller, then from the water outlet of described main impeller, flows out.
Mode of execution of the present utility model compared with the existing technology, owing at the main shaft two ends, being provided with inducer, by inducer, the medium of flowing through can be accelerated, and the pressure of generation 0.045MPa to 0.065MPa, the water intake of the main impeller that medium flows under pressure fast, then from the water outlet of main impeller, flow out, because at the main shaft two ends, being provided with inducer, under pressure-acting when inducer rotates, can guarantee that medium effectively enters in the water intake of main impeller, thereby guarantee that main impeller inside can not enter gas, avoided the cavitation phenomenons generation.
Preferably, be arranged with seal ring on the cylindrical of described main impeller, described main impeller seals by described seal ring and the described pump housing.Owing between main impeller and the pump housing, having adopted seal ring to seal, so further increased the sealability of the pump housing, by seal ring, further prevent the generation of cavitation phenomenons.
Preferably, the end of described inducer expands outwardly from small to large gradually, tapered structure.Due to the tapered structure in the end of inducer, when inducer rotated, the accelerating force of the medium of can further accelerating to flow through, made medium produce larger pressure, thereby guarantee that medium can enter the water intake of main impeller faster, avoids the generation of cavitation phenomenons.
Preferably, described main shaft two ends are provided with and drive the flat key that described inducer is rotated; Described main shaft middle part also is provided with and drives the main flat key that described main impeller is rotated.By flat key and main flat key, can further increase the soundness that inducer, main impeller are connected with main shaft, avoid main shaft when fast rotational, the phenomenon of idle running occurs in main impeller and inducer.
Preferably, described waterway channel becomes man type.
The accompanying drawing explanation
Fig. 1 is the structural representation of the double suction pump of the utility model the first mode of execution.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with accompanying drawing, each mode of execution of the present utility model is explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each mode of execution of the utility model, in order to make the reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs with based on many variations and the modification of following each mode of execution, also can realize each claim of the application technological scheme required for protection.
The first mode of execution of the present utility model relates to a kind of double suction pump, and concrete structure as shown in Figure 1, comprises the pump housing 1, is arranged on the main shaft 2 in the pump housing 1, is set in the main impeller 3 on main shaft 2.
In the present embodiment, the both sides of main impeller 3, for what do not seal, form the water intake 4 of double suction pump.The cylindrical of main impeller 3 has the hollow slots of an annular, forms the water outlet 5 of double suction pump.Water intake 4 forms waterway channel with water outlet 5 conductings, and waterway channel becomes man type.And, in the present embodiment, the sheathed inducer 6 in the two ends of main shaft 2.
When main shaft 2 driving inducers 6 were rotated, medium, under the turning effort of inducer 6, flowed into from the water intake of main impeller 3, then from the water outlet 5 of main impeller 3, flowed out.
Owing at main shaft 2 two ends, being provided with inducer 6, by inducer 6, the medium of flowing through can be accelerated, and the pressure of generation 0.045MPa to 0.065MPa, the water intake 4 of the main impeller 3 that medium flows under pressure fast, then from the water outlet 5 of main impeller 3, flow out, because at the two ends of main shaft 2, being provided with inducer 6, under pressure-acting when inducer 6 rotation, can guarantee that medium effectively enters in the water intake 4 of main impeller 3, thereby guarantee that main impeller 3 inside can not enter gas, avoided the cavitation phenomenons generation.
In addition, in the present embodiment, on the cylindrical of main impeller 3, be arranged with seal ring 7, main impeller 3 seals by seal ring 7 and the pump housing 1.Owing between main impeller 3 and the pump housing 1, having adopted seal ring 7 to seal, so further increased the sealability of the pump housing, by seal ring, further prevent the generation of cavitation phenomenons.
In addition, it is worth mentioning that, the end of inducer 6 expands outwardly from small to large gradually, tapered structure.Due to the tapered structure in the end of inducer 6, when inducer 6 rotation, the accelerating force of the medium of can further accelerating to flow through, make medium produce larger pressure, thereby guarantee that medium can enter the water intake of main impeller faster, avoids the generation of cavitation phenomenons.
And in the present embodiment, the two ends of main shaft 2 are provided with and drive the flat key 8 that inducer 6 is rotated, the middle part of main shaft 2 also is provided with and drives the main flat key 9 that main impeller 2 is rotated.By flat key 8 and main flat key 9, can further increase inducer 6, main impeller 3 and the soundness that main shaft 2 is connected, avoid when main shaft 2 during in fast rotational, the phenomenon of idle running occurs in main impeller 3 and inducer 6.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can to it, do various changes in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (6)
1. a double suction pump, comprise the pump housing, be arranged on the main shaft in the described pump housing, is set in the main impeller on described main shaft;
The both sides of described main impeller, for what do not seal, form the water intake of described double suction pump; The cylindrical of described main impeller has the hollow slots of an annular, forms the water outlet of described double suction pump;
Described water intake and described water outlet conducting form waterway channel, it is characterized in that: the sheathed inducer in described main shaft two ends.
2. double suction pump according to claim 1, it is characterized in that: on the cylindrical of described main impeller, be arranged with seal ring, described main impeller seals by described seal ring and the described pump housing.
3. double suction pump according to claim 1, it is characterized in that: the end of described inducer expands outwardly from small to large gradually, tapered structure.
4. double suction pump according to claim 1 is characterized in that: described main shaft two ends are provided with and drive the flat key that described inducer is rotated.
5. double suction pump according to claim 1, is characterized in that: in the middle part of described main shaft, also be provided with and drive the main flat key that described main impeller is rotated.
6. according to the described double suction pump of any one in claim 1 to 5, it is characterized in that: described waterway channel becomes man type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203646562U CN203308772U (en) | 2013-06-21 | 2013-06-21 | Double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203646562U CN203308772U (en) | 2013-06-21 | 2013-06-21 | Double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308772U true CN203308772U (en) | 2013-11-27 |
Family
ID=49614986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203646562U Expired - Fee Related CN203308772U (en) | 2013-06-21 | 2013-06-21 | Double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706512A (en) * | 2020-05-19 | 2020-09-25 | 三联泵业股份有限公司 | Double-suction pump for desulfurization circulating water |
| CN111706514A (en) * | 2020-05-19 | 2020-09-25 | 三联泵业股份有限公司 | Wear-resistant corrosion-resistant rubber-lined slurry pump |
| CN111852876A (en) * | 2020-05-19 | 2020-10-30 | 三联泵业股份有限公司 | High-efficiency energy-saving multistage middle-open double-suction pump |
-
2013
- 2013-06-21 CN CN2013203646562U patent/CN203308772U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706512A (en) * | 2020-05-19 | 2020-09-25 | 三联泵业股份有限公司 | Double-suction pump for desulfurization circulating water |
| CN111706514A (en) * | 2020-05-19 | 2020-09-25 | 三联泵业股份有限公司 | Wear-resistant corrosion-resistant rubber-lined slurry pump |
| CN111852876A (en) * | 2020-05-19 | 2020-10-30 | 三联泵业股份有限公司 | High-efficiency energy-saving multistage middle-open double-suction pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20190621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |