CN211778019U - Multistage submerged long-axis pump capable of achieving gas sealing - Google Patents
Multistage submerged long-axis pump capable of achieving gas sealing Download PDFInfo
- Publication number
- CN211778019U CN211778019U CN202020032231.1U CN202020032231U CN211778019U CN 211778019 U CN211778019 U CN 211778019U CN 202020032231 U CN202020032231 U CN 202020032231U CN 211778019 U CN211778019 U CN 211778019U
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- pump
- submerged pipeline
- water
- shaft
- body part
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a multistage submerged long-shaft pump capable of realizing gas sealing, which comprises a motor, wherein the motor is supported by a motor bracket, the bottom of the motor bracket is connected with a middle bracket by a flange structure, a rolling bearing assembly is arranged on the top plate of the middle bracket, the bottom of the middle bracket is connected with a pump body part by a flange structure, a water sealing assembly is arranged on the top plate of the pump body part, the bottom of the pump body part is connected with a bottom plate by a flange structure, a pump inner pipe and a liquid outlet pipe which are mutually communicated are arranged in the pump body part, the bottom of the pump inner pipe is connected with a 1 st submerged pipeline, a 1 st guide plate and a 1 st impeller which are mutually connected are arranged in the 1 st submerged pipeline, the bottom of the 1 st submerged pipeline is connected with a 2 nd submerged pipeline, a 2 nd guide plate and a 2 nd impeller which are mutually connected are arranged in the 2 nd submerged, by parity of reasoning, an nth guide plate and an nth impeller which are connected with each other are arranged in the nth submerged pipeline, and a shaft sleeve is further arranged in the nth submerged pipeline.
Description
Technical Field
The utility model relates to a water pump field, especially a can realize gaseous seal's multistage submerged long-axis pump.
Background
In the prior art, a common submerged pump is connected in a volute and double-pipe mode, the joint of a shell and a floor has too many dew points, the shell cannot be effectively sealed, and the medium in the shell cannot be effectively sealed by gas. However, in some chemical plants, the liquid in the siphon reaction tank is pumped out by a submerged pump for transportation, if the transported medium is volatile liquid, volatile gas is generated at the top of the liquid level, and if the volatile gas is pungent, toxic or harmful gas, a great safety hazard exists. That is, when pumping some special media with a submerged pump, not only the liquid tightness but also the gas tightness need to be strictly ensured, which is not satisfied by the submerged pumps currently available on the market. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
Disclosure of Invention
The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, the lift is high, the leakproofness is good, realizes gas seal's multistage submerged long axis pump through water-stop's mode.
The technical solution of the utility model is that: the utility model provides a can realize long axle pump under gaseous sealed multistage liquid which characterized in that: the long shaft pump comprises a motor 1, the motor 1 is supported by a motor support 2, the bottom of the motor support 2 is connected with a middle support 3 by a flange structure, a rolling bearing assembly 4 is arranged on the top plate of the middle support 3, the bottom of the middle support 3 is connected with a pump body part 5 by a flange structure, a water sealing assembly 6 is arranged on the top plate of the pump body part 5, the bottom of the pump body part 5 is connected with a bottom plate 7 by a flange structure, a pump inner pipe 8 and a liquid outlet pipe 9 which are mutually communicated are arranged in the pump body part 5, the bottom of the pump inner pipe 8 is connected with a 1 st submerged pipeline 10, a 1 st guide plate 11 and a 1 st impeller 12 which are mutually connected are arranged in the 1 st submerged pipeline 10, the bottom of the 1 st submerged pipeline 10 is connected with a 2 nd submerged pipeline, and a 2 nd guide plate and a 2 nd impeller which are mutually connected are arranged in the 2 nd submerged pipeline, by parity of reasoning, the nth guide plate and the nth impeller which are connected with each other are arranged in the nth submerged pipeline, a shaft sleeve 13 is also arranged in the nth submerged pipeline,
the rolling bearing component 4 and the shaft sleeve 13 jointly support a pump shaft in a rotating mode, and the pump shaft is also sealed through the water sealing component 6,
the pump shaft is formed by connecting a plurality of sectional shafts, each submerged pipeline is internally provided with a section of sectional shaft which is in key connection with the impeller,
the water seal assembly 6 comprises a seal box body 14 connected on the top plate of the pump body part 5 through a flange structure, a seal cover body 15 is connected above the seal box body 14, a water seal cavity 16 is formed between the seal box body 14 and the seal cover body 15, a mechanical seal assembly is further arranged on a pump shaft within the range of the water seal cavity 16, a water inlet joint and a water outlet joint are arranged and communicated with the water seal cavity 16, the water inlet joint and the water outlet joint are respectively connected with a water circulation system through pipelines,
and a balance drum 17 and a balance drum sleeve 18 are also connected to the pump shaft below the water sealing assembly 6.
Compared with the prior art, the utility model, have following advantage:
the multistage submerged long-shaft pump with the structure capable of realizing gas sealing has the advantages of simple structure, ingenious design and reasonable layout. The special structure is designed aiming at the gas leakage condition possibly occurring in the using process of the traditional submerged pump. The submerged part of the device is formed by connecting a plurality of sets of impeller components in sequence, and the multistage blades can provide higher lift; and the top of the device is provided with a water sealing component, liquid for sealing flows in a circulating mode all the time in the sealing strength of the water sealing component, and the device can strictly keep sealing on gas due to the existence of the water sealing component, so that the device can be applied to conveying volatile toxic and harmful media. In conclusion, the long-shaft pump has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of an nth submerged pipeline portion in an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Detailed Description
The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1, 2, and 3: a multi-stage submerged long shaft pump capable of realizing gas sealing comprises a motor 1, wherein the motor 1 is supported by a motor support 2, the bottom of the motor support 2 is connected with a middle support 3 through a flange structure, a rolling bearing assembly 4 is arranged on a top plate of the middle support 3, the bottom of the middle support 3 is connected with a pump body part 5 through a flange structure, a water sealing assembly 6 is arranged on the top plate of the pump body part 5, the bottom of the pump body part 5 is connected with a bottom plate 7 through a flange structure, a pump inner pipe 8 and a liquid outlet pipe 9 which are mutually communicated are arranged in the pump body part 5, the bottom of the pump inner pipe 8 is connected with a 1 st submerged pipeline 10, a 1 st guide plate 11 and a 1 st impeller 12 which are mutually connected are arranged in the 1 st submerged pipeline 10, the bottom of the 1 st submerged pipeline 10 is connected with a 2 nd submerged pipeline, a 2 nd guide plate and a 2 nd impeller which are mutually connected are arranged in the 2 nd submerged pipeline, by parity of reasoning, the nth guide plate and the nth impeller which are connected with each other are arranged in the nth submerged pipeline, a shaft sleeve 13 is also arranged in the nth submerged pipeline,
the rolling bearing component 4 and the shaft sleeve 13 jointly support a pump shaft in a rotating mode, and the pump shaft is also sealed through the water sealing component 6,
the pump shaft is formed by connecting a plurality of sectional shafts, each submerged pipeline is internally provided with a section of sectional shaft which is in key connection with the impeller,
the water seal assembly 6 comprises a seal box body 14 connected to the top plate of the pump body part 5 through a flange structure, a seal cover body 15 is connected to the top of the seal box body 14, a water seal cavity 16 is formed between the seal box body 14 and the seal cover body 15, a mechanical seal assembly is further arranged on a pump shaft in the range of the water seal cavity 16, a water inlet joint and a water outlet joint are arranged on the pump shaft, the water inlet joint and the water outlet joint are communicated with a water circulation system through pipelines respectively.
The utility model discloses can realize that gas seal's multistage submerged long axis pump's working process as follows: firstly, a motor 1 is connected with a motor support 2, the motor support 2 is connected with a middle support 3, the middle support 3 is connected with a pump body part 5, and finally the bottom of the pump body part 5 is connected with a bottom plate 7 through a flange structure;
after the pump body is installed, all its submerged pipes 10 are submerged below the liquid level below the bottom plate 7. Starting a motor, driving a pump shaft to rotate by the motor, simultaneously rotating all impellers, pressurizing the medium step by step, and finally allowing the high-pressure medium to enter the pump body part 5 through the pump inner tube 8 and be discharged through the liquid outlet tube 9;
if the transported medium is volatile toxic and harmful liquid, a part of volatile gas tends to move upwards in the working process, and the part of gas can be blocked by the water sealing assembly 6, in the water sealing assembly 6, particularly in the watertight cavity 16 between the sealing box body 14 and the sealing cover body 15, a circularly flowing water body always exists, on one hand, the water body can cool and cool the pump shaft and the mechanical sealing assembly at the position, and most importantly, the toxic and harmful gas can be sealed in the pump body part 5 to prevent leakage.
Claims (1)
1. The utility model provides a can realize long axle pump under gaseous sealed multistage liquid which characterized in that: the long shaft pump comprises a motor (1), the motor (1) is supported by a motor support (2), the bottom of the motor support (2) is connected with a middle support (3) through a flange structure, a rolling bearing assembly (4) is arranged on a top plate of the middle support (3), the bottom of the middle support (3) is connected with a pump body part (5) through a flange structure, a water sealing assembly (6) is arranged on the top plate of the pump body part (5), the bottom of the pump body part (5) is connected with a bottom plate (7) through a flange structure, a pump inner pipe (8) and a liquid outlet pipe (9) which are communicated with each other are arranged in the pump body part (5), the bottom of the pump inner pipe (8) is connected with a 1 st submerged pipeline (10), a 1 st guide plate (11) and a 1 st impeller (12) which are connected with each other are arranged in the 1 st submerged pipeline (10), the bottom of the 1 st submerged pipeline (10) is connected with a 2 nd submerged pipeline, a 2 nd guide plate and a 2 nd impeller which are connected with each other are arranged in the 2 nd submerged pipeline, and so on, an nth guide plate and an nth impeller which are connected with each other are arranged in the nth submerged pipeline, a shaft sleeve (13) is also arranged in the nth submerged pipeline,
the rolling bearing assembly (4) and the shaft sleeve (13) jointly support a pump shaft in a rotating way, and the pump shaft is also sealed by the water sealing assembly (6),
the pump shaft is formed by connecting a plurality of sectional shafts, each submerged pipeline is internally provided with a section of sectional shaft which is in key connection with the impeller,
the water seal assembly (6) comprises a seal box body (14) connected to a top plate of the pump body part (5) through a flange structure, a seal cover body (15) is connected above the seal box body (14), a water seal cavity (16) is formed between the seal box body (14) and the seal cover body (15), a mechanical seal assembly is further arranged on a pump shaft in the range of the water seal cavity (16), a water inlet joint and a water outlet joint are arranged and communicated with the water seal cavity (16), the water inlet joint and the water outlet joint are respectively connected with a water circulation system through pipelines,
and a balance drum (17) and a balance drum sleeve (18) are also connected to the pump shaft below the water seal assembly (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020032231.1U CN211778019U (en) | 2020-01-08 | 2020-01-08 | Multistage submerged long-axis pump capable of achieving gas sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020032231.1U CN211778019U (en) | 2020-01-08 | 2020-01-08 | Multistage submerged long-axis pump capable of achieving gas sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778019U true CN211778019U (en) | 2020-10-27 |
Family
ID=72887986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020032231.1U Expired - Fee Related CN211778019U (en) | 2020-01-08 | 2020-01-08 | Multistage submerged long-axis pump capable of achieving gas sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778019U (en) |
-
2020
- 2020-01-08 CN CN202020032231.1U patent/CN211778019U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116000 no.218, Zhuoyue street, sanjianbao street, Lushunkou District, Dalian City, Liaoning Province Patentee after: Dalian Shuanglong Pump Group Co.,Ltd. Address before: 116000 no.218, Zhuoyue street, sanjianbao street, Lushunkou District, Dalian City, Liaoning Province Patentee before: DALIAN SONGLONG PUMP MADING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |