CN203655644U - Injection type self-absorption smashing centrifugal pump - Google Patents
Injection type self-absorption smashing centrifugal pump Download PDFInfo
- Publication number
- CN203655644U CN203655644U CN201320861797.5U CN201320861797U CN203655644U CN 203655644 U CN203655644 U CN 203655644U CN 201320861797 U CN201320861797 U CN 201320861797U CN 203655644 U CN203655644 U CN 203655644U
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- Prior art keywords
- pump
- impeller
- diffuser
- shaft
- nozzle
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- 238000010521 absorption reaction Methods 0.000 title abstract description 7
- 238000002347 injection Methods 0.000 title abstract 5
- 239000007924 injection Substances 0.000 title abstract 5
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model discloses an injection type self-absorption smashing centrifugal pump, which comprises a pump body, a nozzle, a diffuser, a cutterhead, a guide vane, an impeller, a pump cover, a pump shaft, a pump frame and a motor, wherein the pump body is coaxially connected with the motor by the pump frame; the motor is sleeved at one end of the pump shaft; the impeller is mounted at the other end of the pump shaft; the impeller and the guide vane are matched to form a centrifugal pump structure. The shaft end of the pump shaft at the inlet of the impeller is connected with the cutterhead, and the cutterhead is rotated along with the pump shaft to form a smashing structure of a suction inlet of the centrifugal pump; a gas-liquid mixing chamber is formed in the lower end of the pump body, a pump suction inlet, a built-in inlet and a built-in outlet are respectively formed inside and outside the gas-liquid mixing chamber; the nozzle is mounted in the built-in inlet; the diffuser is mounted in the built-in outlet; the other end of the diffuser is connected with the downward end face of the guide vane; the nozzle directly faces a diffuser pipe to form an injection pump structure. The injection type self-absorption smashing centrifugal pump consists of an injection pump, the smashing structure and the centrifugal pump, the structure is simple, the connection reliable, the functions are complementary, the integration of the self-absorption and the smashing of the centrifugal pump is realized, most importantly, the use is reliable, and no blocking problem occurs.
Description
Technical field
The utility model relates to a kind of water pump, and specifically, the utility model relates to a kind of jet-type self-priming crushing centrifuge pump being combined by jet pump, reducing mechanism and centrifugal pump.
Background technique
By national environmental protection policy requirements, the domestic sewage that boats and ships produce must be made relevant treatment, particularly pulverizing treatment before discharge.The domestic sewage that boats and ships produce under normal circumstances accumulates in the bilge, and sewage disposal device is higher than the bilge, has larger water-head between the two.In addition, because containing particle and fibrous structure in domestic sewage, the not competent Sewage from Ships of Ordinary Centrifugal Pumps is carried task, needs to select the centrifugal pump that not only possesses self-absorption function but also can do to pulverize could meet usage requirement.In engineering, conventionally adopt two kinds of method practical function combinations, first method is to install self-priming apparatus additional at the macerator pump feed-water end that does not possess suction capacity; Second method is directly to select the macerator pump that possesses self-absorption function.Above-mentioned two kinds of methods all can realize from bilge suction domestic sewage, but reliability is poor, and user cost is large.For example, the domestic sewage that first method drinks up because of macerator pump feed-water end is without pulverizing treatment, once particulate matter or fibrous structure are excessive, easily there is blockage problem in rearmounted self-priming apparatus, and adding the self-priming apparatus of separately joining need to increase certain cost of equipment and energy consumption.Although second method does not exist the deficiency of first method, the suction lift of conventional self-priming apparatus is no more than 7 meters, strengthens self-priming time along with the increase of suction lift.The Self-absorption smashing pump of prior art is in order to increase suction capacity, and the impeller of joining is closed type structure, and the Flow area of double shrouded wheel is limited, has equally blockage problem.Another problem is that this pump is furnished with a gas-liquid separation chamber that volume is relatively large, causes water pump volume very large, and the pump of selecting by second method thus is also not suitable for marine equipment.
Model utility content
The utility model is mainly for the deficiencies in the prior art, proposes a kind of simple in structure, easy to manufacture, easy to use, jet-type self-priming crushing centrifuge pump that suction capacity is strong, reliable.
The utility model is achieved through the following technical solutions technical goal.
Jet-type self-priming crushing centrifuge pump, it comprises the pump housing, nozzle, Diffuser, cutterhead, stator, impeller, pump cover, pump shaft, pump bracket and motor.The described pump housing coaxially connects motor by pump bracket.The output shaft of described pump shaft larger diameter end socket motor, the impeller that smaller diameter end is installed coordinates formation centrifugal pump structure with stator.Its improvements are: the pump shaft axle head that is positioned at impeller eye place connects cutterhead, and cutterhead forms the pulverizing structure of centrifugal pump suction port with pump shaft rotation; Described pump housing lower end is provided with gas-liquid mixed chamber, and bottom, gas-liquid mixed chamber one side is provided with Pump Suction Nozzle down, and inside is provided with interior posting port and the built-in outlet of coaxially and respectively linking up gas-liquid mixed chamber with pump shaft, and nozzle is upward installed in interior posting port.Described Diffuser is the straight-through pipe fitting that is provided with internal taper hole structure, and smaller diameter end location and installation is in built-in outlet, and larger diameter end is upward connected with stator end face seal down, and in this structure, diffuser pipe forms the intake line of centrifugal pump.Described nozzle just forms jet pump structure to diffuser intake end.
In said structure, impeller is open architecture, and impeller does not have cover plate.
The utility model compared with prior art, has following good effect:
1, the composite structure of jet pump, pulverizing structure and centrifugal pump is simple, connects reliably, has complementary functions, and realizes centrifugal pump self-priming and pulverizes integrated;
2, directly enter centrifugal pump inlet through the medium of diffuser exit input, this structure is except improving centrifugal pump suction capacity, and significantly reduces self-priming time, and the time of realizing self-priming is only the half left and right of prior art;
3, work in coordination with power-assisted because of the import of centrifugal pump by Diffuser and nozzle, suction capacity significantly strengthens, therefore the impeller of centrifugal pump configuration does not need closed type structure, and adopts the strong open architecture of particle-resistant thing ability, open architecture impeller can avoid occurring runner blockage problem.
Accompanying drawing explanation
Fig. 1 is the utility model structural profile schematic diagram.
Embodiment
Below according to the utility model is described in further detail.
Jet-type self-priming crushing centrifuge pump shown in Fig. 1, it comprises the pump housing 1, nozzle 2, Diffuser 3, cutterhead 4, stator 5, impeller 6, pump cover 7, pump shaft 8, pump bracket 9 and motor 10.The described pump housing 1 is by the coaxial motor 10 that connects of pump bracket 9.The output shaft of described pump shaft 8 larger diameter end socket motors 10, the impeller 6 that smaller diameter end is installed open architecture coordinates formation centrifugal pump structure with stator 5.The utility model connects cutterhead 4 at pump shaft 8 axle heads of impeller 6 ingress, and cutterhead 4 forms the pulverizing structure of centrifugal pump suction port with pump shaft 8 rotations.The described pump housing 1 lower end is provided with gas-liquid mixed chamber 1.1, gas-liquid mixed chamber 1.1 bottom one sides are provided with Pump Suction Nozzle 1.2 down, inside is provided with interior posting port 1.3 and the built-in outlet 1.4 of coaxially and respectively linking up gas-liquid mixed chamber 1.1 with pump shaft 8, and nozzle 2 is upward installed in interior posting port 1.3.Described Diffuser 3 is for being provided with the straight-through pipe fitting of internal taper hole structure, and smaller diameter end location and installation is in built-in outlet 1.4, and larger diameter end is upward connected with stator 5 end face seal down, and in this structure, diffuser pipe 3 forms the intake line of centrifugal pump.Described nozzle 2 just forms jet pump structure to diffuser intake end.
The present embodiment jet-type self-priming crushing centrifuge pump is placed in the cabin of 100,000 tons of passenger steamers, pumps to sewage-treatment plant for the domestic sewage that the bilge is accumulated.Startup is gone in the pump housing 1 and is poured into enough liquid, and after startup, under impeller 6 effects of High Rotation Speed, the built-in liquid of the pump housing 1 produces certain pressure.The liquid with certain pressure sprays to Diffuser 3 through nozzle 2, and the pressure energy of liquid is transformed into kinetic energy, forms high-speed jet.In the pump housing 1 inner chamber, residual gas is forced to carry with it by high-speed jet and is mixed, forming gas-liquid mixed stream again circulates and enters Diffuser 3, thereby make gas-liquid mixed chamber 1.1 pressure decreaseds of the pump housing 1, until formation negative pressure, the domestic sewage sucking is in gas-liquid mixed chamber 1.1 enters Diffuser 3, after mixing with high-speed jet, Speed Reduction and pressure raise, wherein residual gas be further compressed after gas-liquid separation in the pump housing 1 inner chamber.The liquid major part of centrifugal pump output is exported from the outlet 1.5 of the pump housing 1, and few portion liquid sprays facing to the import of Diffuser 3 pumping action forming gas-liquid mixed chamber 1.1 through nozzle 2, just can realize self-priming through the circulation of a period of time.Because the utility model is provided with the cutterhead 4 with pump shaft 8 High Rotation Speeds at impeller inlet place, if the domestic sewage sucking has material thing and a fibrous structure, just before impeller 6 imports, pulverized, adding joined impeller 6 is open architecture, therefore can there is not blockage problem in using in the utility model, guarantee normal operation.
Claims (2)
1. a jet-type self-priming crushing centrifuge pump, it comprises the pump housing (1), nozzle (2), Diffuser (3), cutterhead (4), stator (5), impeller (6), pump cover (7), pump shaft (8), pump bracket (9) and motor (10); The described pump housing (1) coaxially connects motor (10) by pump bracket (9); The output shaft of described pump shaft (8) larger diameter end socket motor (10), the impeller (6) that smaller diameter end is installed coordinates formation centrifugal pump structure with stator (5); It is characterized in that: pump shaft (8) axle head that is positioned at impeller (6) ingress connects cutterhead (4), cutterhead (4) forms the pulverizing structure of centrifugal pump suction port with pump shaft (8) rotation; The described pump housing (1) lower end is provided with gas-liquid mixed chamber (1.1), bottom, gas-liquid mixed chamber (1.1) one side is provided with Pump Suction Nozzle (1.2) down, inside is provided with interior posting port (1.3) and the built-in outlet (1.4) of coaxially and respectively linking up gas-liquid mixed chamber (1.1) with pump shaft (8), and nozzle (2) is upward installed in interior posting port (1.3); Described Diffuser (3) is for being provided with the straight-through pipe fitting of internal taper hole structure, smaller diameter end location and installation is in built-in outlet (1.4), larger diameter end is upward connected with stator (5) end face seal down, and diffuser pipe in this structure (3) forms the intake line of centrifugal pump; Described nozzle (2) just forms jet pump structure to diffuser pipe (3) entrance point.
2. jet-type self-priming crushing centrifuge pump according to claim 1, is characterized in that: described impeller (6) is open architecture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861797.5U CN203655644U (en) | 2013-12-25 | 2013-12-25 | Injection type self-absorption smashing centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861797.5U CN203655644U (en) | 2013-12-25 | 2013-12-25 | Injection type self-absorption smashing centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655644U true CN203655644U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861797.5U Expired - Fee Related CN203655644U (en) | 2013-12-25 | 2013-12-25 | Injection type self-absorption smashing centrifugal pump |
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| Country | Link |
|---|---|
| CN (1) | CN203655644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711700A (en) * | 2013-12-25 | 2014-04-09 | 江苏振华泵业制造有限公司 | Injection type self-absorption crushing centrifugal pump |
-
2013
- 2013-12-25 CN CN201320861797.5U patent/CN203655644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711700A (en) * | 2013-12-25 | 2014-04-09 | 江苏振华泵业制造有限公司 | Injection type self-absorption crushing centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 225500 No. 9, Jiangyan Avenue, Jiangyan Economic Development Zone, Taizhou, Jiangsu Patentee after: JIANGSU ZHENHUA PUMP INDUSTRY CO.,LTD. Address before: 225500 No. 9, Jiangyan Avenue, Jiangyan District, Jiangsu, Taizhou Patentee before: JIANGSU ZHENHUA PUMP MANUFACTURING CO.,LTD. |
|
| CP03 | Change of name, title or address |
Address after: 225500 Jiangyan Avenue No. 9, Jiangyan District, Taizhou City, Jiangsu Province (Jiangsu Zhenhua Pump Manufacturing Co., Ltd.) Patentee after: JIANGSU ZHENHUA PUMP MANUFACTURING CO.,LTD. Address before: 225500 Jiangyan Avenue No. 9, Jiangyan Economic Development Zone, Taizhou City, Jiangsu Province Patentee before: JIANGSU ZHENHUA PUMP INDUSTRY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |