CN202348757U - Grain-proof structure for sealing of muddy water pump - Google Patents
Grain-proof structure for sealing of muddy water pump Download PDFInfo
- Publication number
- CN202348757U CN202348757U CN2011205074569U CN201120507456U CN202348757U CN 202348757 U CN202348757 U CN 202348757U CN 2011205074569 U CN2011205074569 U CN 2011205074569U CN 201120507456 U CN201120507456 U CN 201120507456U CN 202348757 U CN202348757 U CN 202348757U
- Authority
- CN
- China
- Prior art keywords
- ring
- pump cover
- muddy water
- impeller
- chamber
- 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 - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a grain-proof structure for sealing of a muddy water pump, which comprises a drive shaft and an impeller, wherein the drive shaft passes through a pump cover, and the impeller is arranged on the drive shaft; the middle part of the pump cover is provided with a chamber covering an impeller hub and the drive shaft, and a seal assembly installed on the drive shaft is arranged in the chamber; and a throttle ring fixed on the pump cover is arranged in the chamber, a gap is formed between an inner hole of the throttle ring and the seal assembly, the throttle ring divides the chamber into a rear low pressure cavity and a seal cavity, the seal cavity is positioned between the throttle ring and the pump cover, and the pump cover is provided with a flushing fluid interface communicated with the seal cavity. According to the utility model, a relatively independent seal cavity is isolated in the pump cover by the throttle ring, and a cleaning solution with a pressure higher than that of muddy water in the rear low pressure cavity is fed into the seal cavity, so that the muddy water is blocked out of the seal cavity, thereby protecting the friction losses of a movable ring and a static ring in the seal cavity, and prolonging the service life of sealing.
Description
Technical field
The utility model relates to the muddy water pump that can carry the aqueous medium that contains suspended particulate, and specifically a kind of muddy water pump sealing is with anti-granular structure.
Background technique
When in carrying the iron and steel rolling mill practice, containing muddy water and other industrial and mineral field in the deposition tank of higher suspension particulate oxidation iron and containing the muddy water of suspended particulate medium, often adopt long shaft submerged pump or non-sealing self-sucking pump.Because of reasons in structure, the motor of long shaft submerged pump and non-sealing self-sucking pump must adopt vertical structure, and the operational reliability of vertical motor is not as horizontal motor.The long shaft submerged pump complex structure is heavy, the maintenance difficulty, and its power passes to impeller through major axis, and the supporting point of revolving part and static element is again in muddy water, thereby efficient is low, energy consumption is big, and service life is lacked; And the self-absorption function of non-sealing self-sucking pump is wanted consumed energy equally when operation, so efficient is also lower.
Common horizontal centrifugal pump is simple in structure, device is reasonable, reliable, but can only be used for pure clear water, and when being used for muddy water, its sealing configuration will soon damage.
Summary of the invention
The utility model provides a kind of muddy water pump sealing with anti-granular structure to the deficiency of above-mentioned existing technology, and this structure can guarantee the sealing long-term work of muddy water pump and not fragile.
The technological scheme that provides according to the utility model: a kind of muddy water pump sealing is with anti-granular structure; Comprise the transmission shaft that passes pump cover and be installed in the impeller on the said transmission shaft; The middle part of said pump cover is provided with the chamber that covers said impeller hub and said transmission shaft, is provided with the black box that is installed on the said transmission shaft in the said chamber; Be provided with the restrictor ring that is fixed on the said pump cover in the said chamber; Be provided with the gap between the endoporus of said restrictor ring and the said black box; Said restrictor ring is separated into back low pressure chamber and Seal cage with said chamber; Said Seal cage has the washing solution interface that communicates with said Seal cage on the said pump cover between said restrictor ring and said pump cover.
Said impeller is provided with the equalizing orifice that connects said back low pressure chamber and preceding low pressure chamber.
Said black box comprises stationary ring, rotating ring, spring seat and spring; Said spring seat, said rotating ring and said stationary ring are sleeved on the said transmission shaft between said impeller and the said pump cover successively; Said spring seat is by said impeller axially locating; Said stationary ring is fixed on the said pump cover, and said spring is between said spring seat and said rotating ring, and said spring is resisted against said rotating ring on the said stationary ring.
Be provided with axle sleeve between said spring seat and the said transmission shaft, said rotating ring Spielpassung is between said spring seat and said axle sleeve.
Between said rotating ring and the said axle sleeve seal ring of moving ring is installed.
Between said rotating ring and the said spring spring throw-out collar is installed.
Between said stationary ring and the said pump cover stationary ring seal ring is installed.
Said stationary ring is positioned on the said pump cover through stop pin.
Compared with present technology the utility model has the following advantages: the utility model isolates a relatively independent Seal cage through restrictor ring in pump cover; Feeding pressure is higher than the cleaning liquid of muddy water in the low pressure chamber of back in Seal cage; Muddy water is blocked on outside the Seal cage; The frictional loss of rotating ring and stationary ring prolongs the working life of sealing in the protection Seal cage.
Description of drawings
Fig. 1 is a structural representation of using the muddy water pump of the utility model.
Embodiment
Embodiment below in conjunction with in the accompanying drawing is further described the utility model.
Among Fig. 1, comprise impeller 1, back low pressure chamber 2, equalizing orifice 3, key 4, the pump housing 5, preceding low pressure chamber 6, impeller nut 7, axle sleeve 8, stationary ring 9, stationary ring seal ring 10, washing solution interface 11, water retaining ring 12, hyperbaric chamber 13, pump cover 14, hitch 15, restrictor ring 16, spring seat 17, spring 18, spring throw-out collar 19, seal ring of moving ring 20, Seal cage 21, rotating ring 22, stop pin 23, transmission shaft 24, motor 25, public base 26 etc.
As shown in Figure 1, be a kind of muddy water pump, comprise through bolt being installed in the pump housing 5 and motor 25 on the public base 26, the pump housing 5 is positioned at the left side, and motor 25 is positioned at the right side, and both link to each other through hitch 15.
The left side of the pump housing 5 is provided with water-in flange, and its top is provided with water-output flange, and water-in flange, water-output flange can be fixed with bolted on connection with outer intake pipe, outlet pipe.The right side of the pump housing 5 is fixed with pump cover 14, and the right side of pump cover 14 links to each other with hitch 15; Between hitch 15 and the pump cover 14, and be provided with positioning spigot between the pump cover 14 and the pump housing 5.
The inside of the pump housing 5 is equipped with impeller 1, and impeller 1 is installed in the axle head of transmission shaft 24 through key 4, and by impeller nut 7 axially locating.During impeller 1 rotation, make the inside of the pump housing 5 form two relatively independent spaces: the pump housing 5 overlaps with impeller 1 isolates a preceding low pressure chamber 6, is impeller 1 left side intake chamber; Form hyperbaric chamber 13 between the pump housing 5 and pump cover 14 and impeller 1 round cover board.
The middle part of pump cover 14 is provided with the chamber that covers impeller 1 wheel hub and transmission shaft 24, is provided with the black box that is installed on the transmission shaft 24 in the chamber.The utility model also is provided with the restrictor ring 16 that is fixed on the pump cover 14 in chamber, restrictor ring 16 is one and has the round-meshed circular ring bodies in certain thickness center, can be with metal or nonmetal manufacturing.The cylindrical of restrictor ring 16 and plane closely are connected with pump cover 14, are provided with the gap between its endoporus and the black box.
Above-mentioned black box comprises stationary ring 9, rotating ring 22, spring seat 17 and spring 18, and spring seat 17, rotating ring 22 and stationary ring 9 are sleeved on the transmission shaft 24 between impeller 1 and the pump cover 14 successively.
Stationary ring 9 is fixed on the pump cover 14, and stationary ring 9 is positioned on the pump cover 14 through stop pin 23; Between stationary ring 9 and the pump cover 14 stationary ring seal ring 10 is installed.
In the utility model, the rotor of motor 25 and transmission shaft 24, water retaining ring 12, axle sleeve 8, rotating ring 22, seal ring of moving ring 20, spring throw-out collar 19, spring 18, spring seat 17, key 4, impeller 1 and impeller nut 7 are formed solid of rotation.Associated parts such as the support of motor 25 and stator and hitch 15, pump cover 14, stop pin 23, stationary ring seal ring 10, stationary ring 9, restrictor ring 16, the pump housing 5, public base 26 and fastening piece are formed meront, form the muddy water pump complete machine in conjunction with meront and solid of rotation.
The working principle of the utility model is following: restrictor ring 16 isolates a relatively independent Seal cage 21 in the chamber at pump cover 14 middle parts, and cleaning liquid links to each other with Seal cage 21 through washing solution interface 11.When cleaning liquid pressure is higher than back low pressure chamber 2; The throttle clearance that cleaning liquid is formed through restrictor ring 16 and spring seat 17 by Seal cage 21 flows to back low pressure chamber 2; The muddy water of band particle is intercepted by the throttle clearance that forms between restrictor ring 16 and the spring seat 17; Make Seal cage 21 be able to the clean room that keeps good,, can prolong the working life of rotating ring 22 and stationary ring 9 widely to reach the frictional loss of protection and minimizing rotating ring 22 and stationary ring 9; Can guarantee to seal long-term work and not fragile, thereby improve the reliability of complete machine.
Use simple and reasonable, convenient for installation and maintenance, the energy-efficient province of muddy water pump material, the maintenance of the utility model to save money fast.The muddy water pump that uses the utility model is with respect to long shaft submerged pump, and the part total amount reduces by 50% at least, and also will reduce 30% with respect to the part total amount of non-sealing self-sucking pump; And muddy water pump adopts horizontal motor, than vertical type motor, moves more reliable.
Claims (8)
1. a muddy water pump sealing is with anti-granular structure; Comprise the transmission shaft (24) that passes pump cover (14) and be installed in the impeller (1) on the said transmission shaft (24); The middle part of said pump cover (14) is provided with the chamber that covers said impeller (1) wheel hub and said transmission shaft (24); Be provided with the black box that is installed on the said transmission shaft (24) in the said chamber; It is characterized in that: be provided with the restrictor ring (16) that is fixed on the said pump cover (14) in the said chamber; Be provided with the gap between the endoporus of said restrictor ring (16) and the said black box; Said restrictor ring (16) is separated into back low pressure chamber (2) and Seal cage (21) with said chamber, and said Seal cage (21) is positioned between said restrictor ring (16) and the said pump cover (14), has the washing solution interface (11) that communicates with said Seal cage (21) on the said pump cover (14).
2. seal with anti-granular structure according to the described muddy water pump of claim 1, it is characterized in that: said impeller (1) is provided with the equalizing orifice (3) that connects said back low pressure chamber (2) and preceding low pressure chamber (6).
3. use anti-granular structure according to the described muddy water pump sealing of claim 1; It is characterized in that: said black box comprises stationary ring (9), rotating ring (22), spring seat (17) and spring (18); Said spring seat (17), said rotating ring (22) and said stationary ring (9) are sleeved on the said transmission shaft (24) between said impeller (1) and the said pump cover (14) successively; Said spring seat (17) is by said impeller (1) axially locating; Said stationary ring (9) is fixed on the said pump cover (14); Said spring (18) is positioned between said spring seat (17) and the said rotating ring (22), and said spring (18) is resisted against said rotating ring (22) on the said stationary ring (9).
4. use anti-granular structure according to the described muddy water pump sealing of claim 3; It is characterized in that: be provided with axle sleeve (8) between said spring seat (17) and the said transmission shaft (24), said rotating ring (22) Spielpassung is between said spring seat (17) and said axle sleeve (8).
5. use anti-granular structure according to the described muddy water pump sealing of claim 4, it is characterized in that: between said rotating ring (22) and the said axle sleeve (8) seal ring of moving ring (20) is installed.
6. use anti-granular structure according to the described muddy water pump sealing of claim 3, it is characterized in that: between said rotating ring (22) and the said spring (18) spring throw-out collar (19) is installed.
7. use anti-granular structure according to the described muddy water pump sealing of claim 3, it is characterized in that: between said stationary ring (9) and the said pump cover (14) stationary ring seal ring (10) is installed.
8. use anti-granular structure according to the described muddy water pump sealing of claim 3, it is characterized in that: said stationary ring (9) is positioned on the said pump cover (14) through stop pin (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205074569U CN202348757U (en) | 2011-12-08 | 2011-12-08 | Grain-proof structure for sealing of muddy water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205074569U CN202348757U (en) | 2011-12-08 | 2011-12-08 | Grain-proof structure for sealing of muddy water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348757U true CN202348757U (en) | 2012-07-25 |
Family
ID=46537765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205074569U Expired - Fee Related CN202348757U (en) | 2011-12-08 | 2011-12-08 | Grain-proof structure for sealing of muddy water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410243A (en) * | 2011-12-08 | 2012-04-11 | 无锡市金城泵业制造有限公司 | Particle-resistance structure for sealing turbid water pump |
-
2011
- 2011-12-08 CN CN2011205074569U patent/CN202348757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410243A (en) * | 2011-12-08 | 2012-04-11 | 无锡市金城泵业制造有限公司 | Particle-resistance structure for sealing turbid water pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202149066U (en) | High temperature-resistant high pressure-resistant wear-resisting and corrosion-resisting centrifugal pump | |
| CN102410243B (en) | Particle-resistance structure for sealing turbid water pump | |
| CN103912514A (en) | Water lubrication sliding bearing device for long shaft pump | |
| CN202348757U (en) | Grain-proof structure for sealing of muddy water pump | |
| CN202832940U (en) | Cooling tower water turbine with water seal | |
| CN202048016U (en) | High-efficient energy-saving vertical-type water pump | |
| CN203570643U (en) | Water lubricating sliding bearing device for long shaft pump | |
| CN201129315Y (en) | Ultra-high pressure anti-scaling mechanical sealing device | |
| CN203453513U (en) | Novel external balance stop valve | |
| CN2934680Y (en) | Improved pump without sealing liquor for chemical industry | |
| CN201618582U (en) | Rubber flexible sealing device for middle-speed mill base | |
| CN204511957U (en) | With the mechanical face seals of centrifugal pumps structure of bidirectional screw seal ring | |
| CN202338639U (en) | Main-shaft waterproof mechanism | |
| CN203441816U (en) | Mine diving electric pump with impeller being provided with balance hole | |
| CN202017650U (en) | Sealing structure of pump | |
| CN205779740U (en) | A kind of Pulp pump | |
| CN213478667U (en) | Horizontal centrifugal pump with wear-resisting pump cover | |
| CN201752998U (en) | Mud-proof wheel | |
| CN202732361U (en) | Novel centrifugal crystal slurry pump | |
| CN201991785U (en) | Double-impeller slurry pump | |
| CN201209594Y (en) | Double-case submersible sludge pump | |
| CN203114661U (en) | Vertical type water ring vacuum pump | |
| CN206035839U (en) | Electronic hydraulic steering pump of unipolar | |
| CN201300346Y (en) | Principal axis waterproof and dustproof device of eccentric sleeve of dynamic-static pressure grinding head | |
| CN202194856U (en) | Novel mechanical seal for slurry pump |
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: 20120725 Termination date: 20161208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |