CN2491635Y - Vertical one-stage single sucking sewage pump - Google Patents
Vertical one-stage single sucking sewage pump Download PDFInfo
- Publication number
- CN2491635Y CN2491635Y CN 01242497 CN01242497U CN2491635Y CN 2491635 Y CN2491635 Y CN 2491635Y CN 01242497 CN01242497 CN 01242497 CN 01242497 U CN01242497 U CN 01242497U CN 2491635 Y CN2491635 Y CN 2491635Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump housing
- pump
- sewage
- mechanical seal
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a single-stage and single-suction sewage pump of vertical style. The sewage pump is characterized in that an impeller-suction positioned in a pump body is arranged upwardly, a mechanical seal of a machine shaft adopts a double seals structure and is arranged in a sealing oil-chamber which is connected with an end cap of a motor and is mounted on the upper portion of the impeller-suction, a chassis used as a sealing end-cap is arranged at the lower end of the pump body, and a sliding bearing connected with the lower end of the shaft is also arranged in the center of the bottom end of the chassis. The sewage pump has the advantages of mechanical seal, abrasion resistance, stable operation, long durability and the like, and is adaptable for the usage of sucking sewage water.
Description
The utility model relates to the pump class, particularly a kind of existing vertical water pump is made improvements, and makes it to be fit to the vertical single stage single suction sewage pump of suction sewage.
As everyone knows, vertical pump is the vertically disposed pump of a kind of rotating shaft, and it is simple in structure, and is easy to use, has been widely used in making the common pipe water pump.Vertical single stage single suction sewage pump is to be made of motor, impeller and the pump housing in the prior art, and the pump housing places the motor below, and its impeller is connected with machine shaft, and the impeller suction down.Water enters in the pump housing through the water sucking mouth of impeller below from the water inlet suction of the pump housing one side during work, discharges from the water outlet of pump housing opposite side after the high hydraulic pressure end revolution in impeller top again.In order to reduce the heating at machine shaft mechanical seal position, its mechanical seal position all is arranged in the interior high hydraulic pressure end of pump, so that utilize formed inner loop to cool off mechanical seal.Yet, when this water pump is used to aspirate sewage, the sewage that more particularly contains part suspension grit, this water pump can there are the following problems: be under the impact of the grit of mechanical seal in sewage of high hydraulic pressure end and the friction and be easy to wearing and tearing, cause leakage from water pump, premature failure, this existing just water pump is not suitable for being used as the main cause that sewage pump is used.
The purpose of this utility model be to provide a kind of mechanical seal be not easy wearing and tearing, reliable vertical single stage single suction sewage pump operates steadily.
Above-mentioned task realizes by this way: this sewage pump includes motor, rotating shaft, mechanical seal, impeller and the pump housing, it is characterized in that the impeller suction in the pump housing is provided with up, the double seals structure is adopted in the mechanical seal of machine shaft, and it is indoor to be arranged at the sealing oil that impeller suction top is connected with electric motor end cap, a chassis of using as end cover is set in pump housing bottom, and is provided with a sliding bearing that cooperates with the rotating shaft lower end at center chassis.
The purpose of this utility model also can take following measure to realize:
In order to reduce in the sewage grit to the friction of sliding bearing, at some back blades of the bottom surface of impeller uniform Design, utilize centrifugal force that back blades produces when rotating with grit toward effluxing, prevent that silt from entering in the sliding bearing, improve the working life of sliding bearing.
In cladding on the pump housing of the impeller of open type upper end and on the pump housing at place, impeller suction a stainless steel backing plate is arranged, to reduce in the sewage silt to the wearing and tearing at this place.
During work, sewage enters in the pump from the water sucking mouth of the pump housing, enters the water sucking mouth of impeller then down, drives through impeller and discharges from pump housing water outlet.Therefore, from improvement structure of the present utility model and working principle thereof as can be seen the utility model following advantage is arranged:
1, since the water sucking mouth of impeller up, make the gland place of the mechanical seal of top form negative pressure, sewage enters in the pump housing down toward suction eye after sucking from the horizontal water sucking mouth of the pump housing immediately, silt in the sewage is under the effect of deadweight and negative pressure, major part enters in the pump housing, avoid too much silt to the impact of mechanical seal and deposition herein, reduced the wearing and tearing of mechanical seal significantly.
2, because mechanical seal places in the grease chamber of a sealing, except that obtaining good lubricating condition, also avoid the wearing and tearing of sewage, improve the working life of mechanical seal effectively mechanical seal.
3, also be provided with a sliding bearing that cooperates with the rotating shaft lower end on the pump housing chassis of rotating shaft lower end, avoided improving traveling comfort greatly owing to the long swing that causes of rotating shaft cantilever.
In addition, because the utility model also is provided with back blades in the impeller bottom surface, reduce the wearing and tearing of silt to sliding bearing; The stainless steel backing plate that adds on the pump housing above the impeller can reduce the wearing and tearing of sewage silt to this place again, therefore also improves effectively wear condition of the present utility model, the working life of further improving the entire sewage pump.
Structure of the present utility model is done the description of progress one below in conjunction with accompanying drawing.
Fig. 1 is the partial sectional view of a kind of concrete structure of the utility model.
As shown in Figure 1, the pump housing 1 usefulness aluminum alloy processes, and the water sucking mouth 3 of its impeller 2 is installed on the electric motor end cap 5 of motor 4 by screw bolt and nut up, and is sealed with seal ring.Doing the chassis 6 that the pump housing 1 end cap uses for one is installed on the opening of the pump housing 1 lower end by screw.The upper end of rotating shaft 7 is connected with motor 4, and its lower end links with placing the impeller 1 in the pump housing 1 spiral chamber.The mechanical seal 8 of this sewage pump is double mechanical seal, is installed in the rotating shaft 7 of 3 tops, impeller 2 water sucking mouths.This mechanical seal 8 places in the grease chamber 10 of sealing of electric motor end cap 5 bottoms.These grease chamber's 10 inner chambers are directly cast and are processed by electric motor end cap 5, and utilize the lower end surface of mechanical seal 8 to make lower seal gland 11, fill with lubricating oil by oil inlet hole 12 in the grease chamber, and this oil inlet hole 12 seals with a screw.Sliding bearing 13 is installed in 6 center holes of chassis, rotating shaft 7 lower ends by one the band nut axle sleeve 14 be threaded with it after, place again in the sliding bearing 13.In the rotating shaft 7 between impeller 2 and the mechanical seal 8, also be provided with an axle sleeve 15, to reduce the wearing and tearing of sewage silt countershaft 7.Back blades 16 is six, evenly is arranged on impeller 1 bottom surface.On the pump housing 1 that contacts with it in impeller 2 upper ends and on the pump housing 1 at 3 places, impeller 1 water sucking mouth with 17 claddings of stainless steel backing plate.18 is pump housing water sucking mouth in the accompanying drawing, and 9 is pump housing water outlet.
The utility model is suitable for aspirating the sewage that contains a small amount of suspension grit to be used.
Claims (3)
1, a kind of vertical single stage single suction sewage pump, include motor (4), rotating shaft (7), mechanical seal (8), the impeller (2) and the pump housing (1), it is characterized in that impeller (2) water sucking mouth (3) in the pump housing (1) is provided with up, the double seals structure is adopted in the mechanical seal (8) of machine shaft (7), and be arranged in impeller (2) water sucking mouth (3) top and the sealing grease chamber (10) that electric motor end cap (5) is connected, in the bottom of the pump housing (1) chassis of using as end cover (6) is set, and (6) center also is provided with a sliding bearing (13) that is connected with rotating shaft (7) lower end on the chassis.
2, sewage pump according to claim 1 is characterized in that evenly being provided with some back blades (16) in the bottom surface of impeller (2).
3, sewage pump according to claim 1 is characterized in that the pump housing (1) that the pump housing (1) of the contact with it of impeller (1) upper end in open type is gone up and located in impeller (2) water sucking mouth (3) goes up cladding a stainless steel backing plate (17) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01242497 CN2491635Y (en) | 2001-07-05 | 2001-07-05 | Vertical one-stage single sucking sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01242497 CN2491635Y (en) | 2001-07-05 | 2001-07-05 | Vertical one-stage single sucking sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491635Y true CN2491635Y (en) | 2002-05-15 |
Family
ID=33654243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01242497 Expired - Lifetime CN2491635Y (en) | 2001-07-05 | 2001-07-05 | Vertical one-stage single sucking sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491635Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090049A (en) * | 2014-05-13 | 2015-11-25 | 开利泵业(集团)有限公司 | Convenient-to-disassemble vertical single-stage pump |
| CN108343620A (en) * | 2018-04-19 | 2018-07-31 | 大连申域流体机械有限公司 | A kind of layered pollution discharge pump |
| CN108591066A (en) * | 2018-07-13 | 2018-09-28 | 重庆水泵厂有限责任公司 | A kind of axial force self-balancing vertical centrifugal pump |
-
2001
- 2001-07-05 CN CN 01242497 patent/CN2491635Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090049A (en) * | 2014-05-13 | 2015-11-25 | 开利泵业(集团)有限公司 | Convenient-to-disassemble vertical single-stage pump |
| CN108343620A (en) * | 2018-04-19 | 2018-07-31 | 大连申域流体机械有限公司 | A kind of layered pollution discharge pump |
| CN108591066A (en) * | 2018-07-13 | 2018-09-28 | 重庆水泵厂有限责任公司 | A kind of axial force self-balancing vertical centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1181048A (en) | Compressor oil pump | |
| CN2491635Y (en) | Vertical one-stage single sucking sewage pump | |
| CN205559304U (en) | Pump under dense sulfuric acid liquid of high temperature | |
| CN201047350Y (en) | High-efficiency flue gas desulfurization recycle pump | |
| CN2809288Y (en) | Pump dedicated for feeding of filter press | |
| CN2699041Y (en) | Water lubricating rubber bearing for condensation pump | |
| CN2330815Y (en) | Submerged pump with axial seal structure | |
| CN209025800U (en) | A kind of three plunger water pump of super-pressure | |
| CN2205455Y (en) | Movable air compressor | |
| CN203098395U (en) | Clamping installation type centrifugal pump volute | |
| CN2649802Y (en) | Piston-shoes-free and oil-distributing-disk-free axial plunger pump | |
| CN214945207U (en) | Centrifugal pump bearing box capable of preventing lubricating oil from leaking | |
| CN2849236Y (en) | Vacuum self-priming water pump | |
| CN211852168U (en) | SWQ double-suction sewage pump | |
| CN2311628Y (en) | Efficient sealed submersible pump | |
| CN219672858U (en) | Vertical multistage pump | |
| CN210949296U (en) | Mechanical seal lubricating and flushing structure | |
| CN2399533Y (en) | Swinging rotor type compressor | |
| CN2641343Y (en) | Rubber vane type sea water pump driven by ship diesel engine | |
| CN2413063Y (en) | Vertical self-priming discharge pump | |
| CN213016930U (en) | Sealing device of vertical pump | |
| CN2469217Y (en) | Submersible sewer pump | |
| CN215294507U (en) | Low-noise rotary intelligent lubricating device for fan | |
| CN2733047Y (en) | Single-screw pump with underslung seal | |
| CN2296941Y (en) | Ultrashort structure type micro-resistance slowly closed check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110705 Granted publication date: 20020515 |