CN107747545B - Amphibious pipeline pump - Google Patents
Amphibious pipeline pump Download PDFInfo
- Publication number
- CN107747545B CN107747545B CN201711173244.XA CN201711173244A CN107747545B CN 107747545 B CN107747545 B CN 107747545B CN 201711173244 A CN201711173244 A CN 201711173244A CN 107747545 B CN107747545 B CN 107747545B
- Authority
- CN
- China
- Prior art keywords
- water
- sealing cover
- motor
- pump
- water jacket
- Prior art date
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 169
- 238000007789 sealing Methods 0.000 claims abstract description 124
- 239000010687 lubricating oil Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Abstract
The present invention relates to a tubing pump and, in particular to an amphibious pipeline pump. Solves the problem that the existing pipeline pump cannot be used amphibious problems. The amphibious pipeline pump comprises a pump body with a water inlet and a water outlet, a water wheel and a submersible motor with a water jacket, and achieves the amphibious purpose of the pipeline pump by improving the positions and the structures of a water inlet hole and a water return hole of an inner cavity of the water jacket. Meanwhile, a lower sealing cover, a single-end surface mechanical seal, a pump sealing ring and two lubricating oil chambers are additionally arranged in the connecting seat. Due to the adoption of the submersible motor with the water jacket, a cooling fan on the original dry motor is removed, and the running noise of the pipeline pump is reduced. The invention has reasonable and unique structural design, and can be operated on land in a common environment; may also be operating submerged.
Description
Technical Field
The invention relates to a pipeline pump, in particular to an amphibious pipeline pump.
Background
The water inlet and the water outlet of the pipeline pump are on the same straight line, so that the pipeline pump can be conveniently connected in series in the water conveying pipeline for operation. The method is widely applied to high-rise water supply and heating boiler circulating water supply; can also be used for other water supply and drainage places.
The existing pipeline pump (shown in figure 1) consists of a pump body, a water wheel, a connecting section and a common dry motor; the connecting section consists of connecting flanges at two ends and supporting ribs which are distributed at intervals between the connecting flanges at two ends; the connecting section is respectively connected with the motor and the pump body through connecting flanges at two ends of the connecting section; the water wheel is positioned in the pump body and fixed at the shaft end of the motor. Because of the use of a conventional dry motor, existing pipeline pumps will not work when flooded due to pipeline leakage or damage, or under water. In addition, since the cooling fan of the general dry motor, the bearing, the rotor, etc. are exposed to the working space, the noise is large in operation.
Disclosure of Invention
The invention solves the problem that the existing pipeline pump cannot be used for both the water and the land, and provides the amphibious pipeline pump.
The invention is realized by adopting the following technical scheme: the amphibious pipeline pump comprises a pump body with a water inlet and a water outlet, a water wheel and a submersible motor with a water jacket; the submersible motor with the water jacket comprises a motor, a water jacket sleeved on the motor in a sealing way and a connecting seat connected with a power output end of the motor, wherein a water jacket inner cavity is formed between the water jacket and the outer surface of the motor, the connecting seat is connected with a pump body in a sealing way through a flange, an upper sealing cover is arranged in the connecting seat and is fixed on a lower end cover of the motor in a sealing way, an output shaft of the motor penetrates through the upper sealing cover, a middle sealing cover is arranged in the connecting seat, the periphery of the middle sealing cover is connected with the inner wall of the connecting seat in a sealing way, an output shaft of the motor penetrates through the middle sealing cover, and double-end-face mechanical sealing sleeved on the output shaft of the motor is pressed between the upper sealing cover and the middle sealing cover; a lower sealing cover positioned below the middle sealing cover is arranged in the connecting seat, the periphery of the lower sealing cover is in sealing connection with the inner wall of the connecting seat, an output shaft of the motor penetrates through the lower sealing cover, and a single-end surface mechanical seal sleeved on the output shaft of the motor is pressed between the lower sealing cover and the water wheel, so that the sealing performance of the power output end of the motor is further improved; the water jacket inner cavity is provided with a water inlet hole and a water return hole, the water inlet hole of the water jacket inner cavity axially passes through the connecting flange of the connecting seat, the connecting flange of the lower end cover of the motor and the connecting flange of the lower end of the motor base at the same time to realize the penetration with the water jacket inner cavity, the side wall of the connecting seat is provided with a water outlet hole at the position below the lower sealing cover, and the water outlet hole is communicated with the water inlet hole of the water jacket inner cavity through a water pipe or a pipeline; the water return hole of the inner cavity of the water jacket is formed in the convex edge of the connecting flange at the lower end of the motor base, one end of the water inlet of the pump body is provided with a backflow hole communicated with the water inlet of the pump body, and the water return hole of the inner cavity of the water jacket is communicated with the backflow hole of the pump body through a water return pipe; a pump sealing ring is arranged below the lower sealing cover, the periphery of the pump sealing ring is sealed and pressed between the connecting flange at the lower end of the connecting seat and the pump body, and an annular hole of the pump sealing ring is sleeved on the outer ring of the upper core shaft part of the water wheel and keeps a gap (namely, the annular hole of the pump sealing ring keeps a gap with the upper core shaft part of the water wheel); the connecting seat is provided with oil filling holes which are respectively communicated with the space between the upper sealing cover and the middle sealing cover and the space between the middle sealing cover and the lower sealing cover, the oil filling screw plugs are screwed on the oil filling holes, and the space between the upper sealing cover and the middle sealing cover and the space between the middle sealing cover and the lower sealing cover are respectively filled with lubricating oil through the oil filling screw plugs. During operation, water flow enters the pump body from the water inlet of the pump body, after being pressurized by the water wheel, flows out from the water outlet of the pump body, and meanwhile, the water flow enters the inner cavity of the water jacket through the water outlet hole on the connecting seat and the water inlet hole of the inner cavity of the water jacket, and then returns to the water inlet of the pump body through the water return hole of the inner cavity of the water jacket and the water return pipe, so that the circulation of cooling water is realized, and the cooling of the submersible motor is completed.
Among the existing products are pipeline pumps comprising a pump body, a water wheel and a dry motor, and submersible pumps comprising a pump body, a water wheel and a submersible motor with a water jacket. The dry motor of the existing pipeline pump is replaced by a submersible motor with a water jacket of the submersible pump, and the pipeline pump is determined to be only used underwater but not used on land due to the positions and structures of a water inlet hole and a water return hole of a water jacket inner cavity of the submersible motor with the water jacket; the invention realizes the amphibious purpose of the pipeline pump by improving the positions and the structures of the water inlet hole and the water return hole of the inner cavity of the water jacket. The invention sets double-end mechanical seal in the sealing cavity formed between the upper sealing cover and the middle sealing cover in the cylinder connecting seat, thereby forming a first lubricating oil chamber; the single-end-face mechanical seal is arranged between the lower sealing cover and the hub of the hydraulic wheel and the pump sealing ring, so that a second lubricating oil chamber is formed between the middle sealing cover and the lower sealing cover in the connecting seat, and compared with the traditional submersible motor with the water jacket, a lubricating oil chamber is added, favorable lubricating conditions are provided for friction pair lubrication of two sets of mechanical seals, the operation life of the two mechanical seals is prolonged, and the sealing life of the pipeline pump is prolonged; the space between the lower sealing cover and the water wheel is divided into two parts by the pump sealing ring, the upper space of the pump sealing ring is communicated with the water inlet of the pump body with lower pressure through the inner cavity of the water jacket, and the lower space of the pump sealing ring is filled with high-pressure water thrown out by the water wheel, so that the pressure of the upper space of the pump sealing ring is obviously lower than that of the lower space of the pump sealing ring, and compared with the case that the pump sealing ring is not arranged, the downward axial force born by the output shaft of the motor can be reduced, and the bearing life of the pipeline pump is prolonged; meanwhile, the sealing pressure of the single-end surface mechanical seal is reduced, the sealing service life is prolonged, and the service life of the pipeline pump is prolonged. Because the submersible motor with the water jacket is adopted, the cooling fan on the original dry motor is removed, and the rotary vibration components such as the bearing, the rotor and the like are wrapped in the water jacket, thereby reducing the running noise of the pipeline pump.
The invention has reasonable and unique structural design, and can be operated on land in a common environment; or can be operated submerged.
Drawings
FIG. 1 is a schematic diagram of a typical construction of a conventional tubing pump;
figure 2 is a schematic view of the amphibious pipeline pump of the present invention;
fig. 3 is a partial enlarged view of fig. 2.
In the figure: the device comprises a 1-upper end cover, a 2-motor, a 3-convex column, a 4-base, a 5-water jacket, a 6-lower end cover, a 7-upper sealing cover, an 8-double-end-face mechanical seal, a 9-water return pipe, a 10-oil filling screw plug, an 11-lower sealing cover, a 12-single-end-face mechanical seal, a 13-water wheel, a 14-pump body, a 15-pump sealing ring, a 16-middle sealing cover, a 17-connecting seat, an 18-water conduit, a 19-outgoing line sealing guide pillar and a 20-air release valve.
Detailed Description
The amphibious pipeline pump comprises a pump body 14 with a water inlet and a water outlet, a water wheel 13 and a submersible motor with a water jacket; the submersible motor with the water jacket comprises a motor 2, a water jacket 5 and a connecting seat 17, wherein the water jacket 5 is sleeved on the motor 2 in a sealing manner, the connecting seat 17 is connected with the power output end of the motor 2 in a sealing manner, a water jacket inner cavity is formed between the water jacket 5 and the outer surface of the motor 2, the connecting seat 17 is connected with a pump body 14 in a sealing manner through a flange, an upper sealing cover 7 is arranged in the connecting seat 17, the upper sealing cover 7 is fixed on a lower end cover 6 of the motor 2 in a sealing manner, an output shaft of the motor 2 penetrates through the upper sealing cover 7, a middle sealing cover 16 is arranged in the connecting seat 17, the periphery of the middle sealing cover 16 is connected with the inner wall of the connecting seat 17 in a sealing manner, and a double-end-face mechanical seal 8 sleeved on the output shaft of the motor is pressed between the upper sealing cover 7 and the middle sealing cover 16; a lower sealing cover 11 positioned below the middle sealing cover 16 is arranged in the connecting seat 17, the periphery of the lower sealing cover 11 is connected with the inner wall of the connecting seat 17 in a sealing way, the output shaft of the motor 2 passes through the lower sealing cover 11, a single-end face mechanical seal 12 sleeved on the output shaft of the motor 2 is pressed between the lower sealing cover 11 and the water wheel 13, so that the sealing performance of the power output end of the motor 2 is further improved; the water jacket inner cavity is provided with a water inlet hole and a water return hole, the water inlet hole of the water jacket inner cavity axially passes through the connecting flange of the connecting seat 17, the connecting flange of the lower end cover 6 of the motor 2 and the connecting flange of the lower end of the machine seat 4 of the motor 2 at the same time, so as to realize the penetration with the water jacket inner cavity, the side wall of the connecting seat 17 is provided with a water outlet hole at the position below the lower sealing cover 11, and the water outlet hole is communicated with the water inlet hole of the water jacket inner cavity through a water pipe or a pipeline; the water return hole of the inner cavity of the water jacket is formed on the convex edge of the connecting flange at the lower end of the base 4 of the motor 2, one end of the water inlet of the pump body 14 is provided with a backflow hole communicated with the water inlet of the pump body, and the water return hole of the inner cavity of the water jacket is communicated with the backflow hole of the pump body 14 by a water return pipe 9; a pump sealing ring 15 is arranged below the lower sealing cover 11, the periphery of the pump sealing ring 15 is sealed and pressed between a connecting flange at the lower end of the connecting seat 17 and the pump body 14, and an annular hole of the pump sealing ring 15 is sleeved on the outer ring of the upper core shaft part of the water wheel 13 and keeps a gap; the connecting seat 17 is provided with oil filling holes which are respectively communicated with the space between the upper sealing cover 7 and the middle sealing cover 16 and the space between the middle sealing cover 16 and the lower sealing cover 11, the oil filling screw plugs 10 are screwed on the oil filling holes, and the space between the upper sealing cover 7 and the middle sealing cover 16 and the space between the middle sealing cover 16 and the lower sealing cover 11 are respectively filled with lubricating oil through the oil filling screw plugs 10. In particular, the pipeline for communicating the water inlet hole of the water jacket inner cavity and the water outlet hole on the connecting seat 17 is formed by perforating on the special rib on the connecting seat 17, so that the pipeline for communicating the water inlet hole of the water jacket inner cavity and the water outlet hole on the connecting seat 17 is integrally formed on the connecting seat 17, and a connecting water pipe does not need to be independently configured, so that the structure is more reasonable. During specific manufacturing, all sealing joints are provided with spigot static seals, and all sealing joints are sealed by oil-resistant rubber O-shaped sealing rings. The clearance between the annular hole of the pump seal ring 15 and the upper core shaft portion of the water wheel 13 is controlled to be between 0.15 mm and 0.25 mm. A water conduit 18 is arranged in the inner cavity of the water jacket, the lower end of the water conduit 18 is sealed and sleeved in a water inlet hole of the inner cavity of the water jacket 5, and the upper end of the water conduit 18 extends to the top of the motor 2. The water conduit 18 is provided to rapidly guide the cooling water to the top of the water jacket cavity to prevent "shorting" of the cooling water flow while maintaining a large cooling water return.
Claims (5)
1. An amphibious pipeline pump comprises a pump body (14) with a water inlet and a water outlet, a water wheel (13) and a submersible motor with a water jacket; the submersible motor with the water jacket comprises a motor (2), a water jacket (5) and a connecting seat (17), wherein the water jacket (5) is sleeved on the motor (2) in a sealing manner, the connecting seat (17) is connected with the outer surface of the motor (2) in a sealing manner, a water jacket inner cavity is formed between the water jacket (5) and the outer surface of the motor (2), the connecting seat (17) is connected with a pump body (14) in a sealing manner through a flange, an upper sealing cover (7) is arranged in the connecting seat (17), the upper sealing cover (7) is fixed on a lower end cover (6) of the motor (2) in a sealing manner, an output shaft of the motor (2) penetrates through the upper sealing cover (7), a middle sealing cover (16) is arranged in the connecting seat (17), the periphery of the middle sealing cover (16) is connected with the inner wall of the connecting seat (17) in a sealing manner, and an output shaft of the motor (2) penetrates through the middle sealing cover (16); the double-end-face mechanical seal (8) sleeved on the output shaft of the motor is pressed between the upper sealing cover (7) and the middle sealing cover (16); a lower sealing cover (11) positioned below the middle sealing cover (16) is arranged in the connecting seat (17), the periphery of the lower sealing cover (11) is in sealing connection with the inner wall of the connecting seat (17), the output shaft of the motor (2) passes through the lower sealing cover (11), and a single-end surface mechanical seal (12) sleeved on the output shaft of the motor (2) is pressed between the lower sealing cover (11) and the water wheel (13); the water jacket inner cavity is provided with a water inlet hole and a water return hole, and the water inlet hole of the water jacket inner cavity axially passes through the connecting flange of the connecting seat (17), the connecting flange of the lower end cover (6) of the motor (2) and the connecting flange of the lower end of the base (4) of the motor (2) at the same time, so that the water jacket inner cavity is communicated; a water outlet hole is formed in the side wall of the connecting seat (17) and positioned below the lower sealing cover (11), and the water outlet hole is communicated with a water inlet hole of the inner cavity of the water jacket through a water pipe or a pipeline; the water return hole of the water jacket inner cavity is formed in the convex edge of the connecting flange at the lower end of the base (4) of the motor (2), one end of the water inlet of the pump body (14) is provided with a backflow hole communicated with the water inlet of the pump body, and the water return hole of the water jacket inner cavity is communicated with the backflow hole on the pump body (14) through a water return pipe (9); a pump sealing ring (15) is arranged below the lower sealing cover (11), the periphery of the pump sealing ring (15) is sealed and pressed between a connecting flange at the lower end of the connecting seat (17) and the pump body (14), and an annular hole of the pump sealing ring (15) is sleeved on the outer ring of the upper core shaft part of the water wheel (13) and keeps a gap; the connecting seat (17) is provided with oil filling holes which are respectively communicated with the space between the upper sealing cover (7) and the middle sealing cover (16) and the space between the middle sealing cover (16) and the lower sealing cover (11), the oil filling screw plugs (10) are screwed on the oil filling holes, and the space between the upper sealing cover (7) and the middle sealing cover (16) and the space between the middle sealing cover (16) and the lower sealing cover (11) are respectively filled with lubricating oil through the oil filling screw plugs (10).
2. An amphibious pipeline pump according to claim 1, characterised in that the clearance between the annulus of the pump seal ring (15) and the upper core shaft portion of the water wheel (13) is controlled between 0.15 mm and 0.25 mm.
3. An amphibious pipeline pump as claimed in claim 1 or claim 2 wherein the conduit for communicating the inlet opening of the water jacket cavity with the outlet opening in the connection block (17) is formed by a dedicated rib opening in the connection block (17).
4. An amphibious pipeline pump as claimed in claim 1 or claim 2 wherein a water conduit (18) is provided in the water jacket cavity, the lower end of the water conduit (18) being sealed with a plug in the water inlet of the water jacket cavity and the upper end extending to the top of the motor (2).
5. An amphibious pipeline pump as claimed in claim 3 wherein a water conduit (18) is provided in the water jacket cavity, the lower end of the water conduit (18) being sealed and plugged into the water inlet of the water jacket cavity and the upper end extending to the top of the motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173244.XA CN107747545B (en) | 2017-11-22 | 2017-11-22 | Amphibious pipeline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711173244.XA CN107747545B (en) | 2017-11-22 | 2017-11-22 | Amphibious pipeline pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107747545A CN107747545A (en) | 2018-03-02 |
| CN107747545B true CN107747545B (en) | 2024-02-02 |
Family
ID=61251889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711173244.XA Active CN107747545B (en) | 2017-11-22 | 2017-11-22 | Amphibious pipeline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747545B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812422B (en) * | 2019-01-11 | 2020-09-04 | 江苏泰丰泵业有限公司 | Horizontal cold water pump |
| CN112065735B (en) * | 2020-09-16 | 2022-06-24 | 长沙迪沃机械科技有限公司 | Control method of water-taking booster pump and control method of water-taking booster pump truck |
| CN115234493A (en) * | 2022-07-29 | 2022-10-25 | 上海凯泉泵业（集团）有限公司 | Amphibious self-sucking pump |
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| Publication number | Publication date |
|---|---|
| CN107747545A (en) | 2018-03-02 |
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