CN202946404U - Novel sealing-free standing type self-priming centrifugal pump - Google Patents
Novel sealing-free standing type self-priming centrifugal pump Download PDFInfo
- Publication number
- CN202946404U CN202946404U CN 201220535460 CN201220535460U CN202946404U CN 202946404 U CN202946404 U CN 202946404U CN 201220535460 CN201220535460 CN 201220535460 CN 201220535460 U CN201220535460 U CN 201220535460U CN 202946404 U CN202946404 U CN 202946404U
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- pump
- water inlet
- water
- priming centrifugal
- centrifugal pump
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Abstract
The utility model relates to a novel sealing-free standing type self-priming centrifugal pump which comprises a pump body and a motor, the motor is connected with a pump spindle through a coupling, the lower end of the pump spindle is provided with a vane wheel and a water inlet cavity, the water inlet body is communicated with a water inlet body, the water inlet body is connected with a water inlet pipe, the connecting end of the water inlet pipe and the water inlet body is higher than an inlet end of the water inlet pipe, a flow-guiding body is arranged above the water inlet cavity, the vane wheel is arranged inside the flow-guiding body, an anti-rotating plate is arranged above the flow-guiding body, a water bearing is arranged between the pump spindle and the anti-rotating plate, a separating plate is arranged below the coupling, and a framework oil sealing device and a dynamic sealing device are arranged between the separating plate and the pump spindle. Compared with the prior art, the novel sealing-free standing type self-priming centrifugal pump meets the requirement of self-priming, prevents the syphonage and increases water storage capacity on the condition that the position of a suction inlet is not elevated. No check valve is needed to be arranged on a pump inlet, and the problem that a valve is short in service life and poor in reliability is solved. The anti-rotating plate is arranged inside a gas-liquid separating chamber in a pump, so that mixture of gas and water is prevented from rotating, gas-liquid separation is accelerated, and the work efficiency of the pump is increased and the service life of the pump is prolonged.
Description
Technical field
The utility model relates to the pump technology field, and especially a kind of feed-water end need not to install the novel without the sealing vertical self-priming centrifugal pump of safety check.
Background technique
Existing vertical centrifugal pump, vertical self-priming centrifugal pump, nothing sealing vertical self-priming centrifugal pump etc. generally all need to be installed safety check or solenoid vacuum valve in import, the outlet port of the pump housing.At present, above-mentioned these a few class pump check valves are easier to damage usually, and solenoid vacuum valve also can break down because of the chronic infiltration of water, causes the working life of pump shorter.
Existing self priming centrifugal pump is in order to satisfy the self-priming demand, and often the self-priming demand to increase moisture storage capacity, is satisfied in the position by raising suction port, proposes requirements at the higher level can for like this user's setting height(from bottom).It is basic between the pump housing and motor that the radial force that pump bears and intermediate support are advocated and will be born by the built-in bearing of motor in order to be rigidly connected, therefore, long-play, the operating mode operation easily causes the electric machine built-in damage of bearings especially partially.In pump, sealing is substantially all to realize dynamic seal by sub-propeller, and sub-propeller only seals when pump normally moves, and often still leakage phenomenon can occur when pump deceleration or parking.
The model utility content
Deficiency for above existing self priming centrifugal pump, the purpose of this utility model is to provide a kind of feed-water end and need not to install the novel without the sealing vertical self-priming centrifugal pump of safety check, set up anti-rotating plate in gas-liquid separation chamber in the pump housing, can stop vane rotary to cause the parabola shaped rotation of air-water mixture, air-water mixture can be accelerated gas-liquid separation after clashing into anti-rotating plate, effectively improves the working efficiency of pump.
The purpose of this utility model is achieved by the following technical solution:
Novel without the sealing vertical self-priming centrifugal pump, comprise the pump housing and motor, motor is connected with the pump shaft of the pump housing by coupling, the lower end of pump shaft is provided with impeller, the lower end of the described pump housing is provided with water-inlet cavity, and a side of the pump housing is provided with outlet pipe, and described water-inlet cavity is communicated with the water inlet body, the water inlet body connects intake pipe, and the connecting end of described intake pipe and water inlet body is higher than the entrance point of intake pipe.
As optimal technical scheme of the present utility model, the top of described water-inlet cavity is provided with deflector, and described impeller is located in deflector, is provided with anti-rotating plate above deflector, and anti-rotating plate is connected with the pump housing and fixes.
As optimal technical scheme of the present utility model, be provided with submerged bearing between described pump shaft and anti-rotating plate.
As optimal technical scheme of the present utility model, be provided with dividing plate in the pump housing below described coupling, be respectively equipped with outside framework oil seal and dynamic sealing device between dividing plate and described pump shaft.
As optimal technical scheme of the present utility model, described outlet pipe is made of supervisor, check valve and outer pipe, and supervisor is connected with the pump housing, and outer pipe is connected with supervisor by check valve, and the outlet end of described outer pipe is higher than the entrance point of described intake pipe.
As optimal technical scheme of the present utility model, described motor is anti-explosion motor.
With respect to prior art, the utility model has following characteristics: 1, pump inlet increases moisture storage capacity in the situation that do not raise the suction port position, can satisfy the self-priming demand; Prevent simultaneously siphon, during shutdown, siphonage can not the interior liquid storage of return pump.Compare with conventional vertical self-sucking pump, pump inlet needn't be installed safety check or solenoid vacuum valve, thereby the life-span that has solved valve is short, the problem of poor reliability.
2, set up anti-rotating plate in the gas-liquid separation chamber in pump, can stop vane rotary to cause the parabola shaped rotation of air-water mixture, air-water mixture can be accelerated gas-liquid separation after clashing into anti-rotating plate, effectively improves the working efficiency of pump.
3, the sealing configuration that adopts the dynamic sealing of auxiliary impeller device to combine with outside framework oil seal, the leakage problem when having solved pump deceleration or shutdown.
4, increase submerged bearing, improve the reliability of pump.
The utility model combines the advantage of existing vertical centrifugal pump, vertical self-priming centrifugal pump, nothing sealing vertical self-priming centrifugal pump, has improved pump performance and working life.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is structural representation of the present utility model.
In figure: 1, the pump housing, 2, motor, 3, intake pipe, 4, check valve, 5, support, 6, outside framework oil seal, 7, pump shaft, 8, submerged bearing, 9, anti-rotating plate, 10, deflector, 11, impeller, 12, dynamic sealing device, 13, coupling, 14, outlet pipe.
Embodiment
As shown in Figure 1, novel without the sealing vertical self-priming centrifugal pump, comprise the pump housing 1 and motor 2, motor 2 is connected with the pump housing 1 by support 5, and motor shaft is connected with the pump shaft 7 of the pump housing 1 by coupling 13, the lower end of pump shaft 7 is provided with impeller 11, the lower end of the pump housing 1 is provided with water-inlet cavity, and a side of the pump housing 1 is provided with outlet pipe 14, and described water-inlet cavity is communicated with the water inlet body, the water inlet body connects intake pipe 3, and the connecting end of intake pipe 3 and water inlet body is higher than the entrance point of intake pipe 3.
In the present embodiment, described motor 2 is anti-explosion motors.The top of described water-inlet cavity is provided with deflector 10, and impeller 11 is located in deflector 10, and deflector 10 tops are provided with anti-rotating plate 9, and anti-rotating plate 9 is connected and fixes with the pump housing 1, is provided with submerged bearing 8 between pump shaft 7 and anti-rotating plate 9.
Be provided with dividing plate in the pump housing 1 of described coupling 13 belows, be respectively equipped with outside framework oil seal 6 and dynamic sealing device 12 between dividing plate and pump shaft 7.Described outlet pipe 14 is made of supervisor, check valve and outer pipe, and supervisor is connected with the pump housing 1, and outer pipe is connected with supervisor by check valve 4, and the outlet end of outer pipe is higher than the entrance point of described intake pipe 3.
Claims (6)
1. a novel nothing seals vertical self-priming centrifugal pump, comprise the pump housing and motor, motor is connected with the pump shaft of the pump housing by coupling, the lower end of pump shaft is provided with impeller, it is characterized in that: the lower end of the described pump housing is provided with water-inlet cavity, and a side of the pump housing is provided with outlet pipe, and described water-inlet cavity is communicated with the water inlet body, the water inlet body connects intake pipe, and the connecting end of described intake pipe and water inlet body is higher than the entrance point of intake pipe.
2. novel nothing according to claim 1 seals vertical self-priming centrifugal pump, and it is characterized in that: the top of described water-inlet cavity is provided with deflector, and described impeller is located in deflector, is provided with anti-rotating plate above deflector, and anti-rotating plate is connected with the pump housing and fixes.
3. according to claim 2 novel without the sealing vertical self-priming centrifugal pump, it is characterized in that: be provided with submerged bearing between described pump shaft and anti-rotating plate.
4. according to claim 1 and 2 novel without the sealing vertical self-priming centrifugal pump, it is characterized in that: be provided with dividing plate in the pump housing below described coupling, be respectively equipped with outside framework oil seal and dynamic sealing device between dividing plate and described pump shaft.
5. according to claim 1 novel without the sealing vertical self-priming centrifugal pump, it is characterized in that: described outlet pipe is made of supervisor, check valve and outer pipe, supervisor is connected with the pump housing, and outer pipe is connected with supervisor by check valve, and the outlet end of described outer pipe is higher than the entrance point of described intake pipe.
6. according to claim 1 novel without the sealing vertical self-priming centrifugal pump, it is characterized in that: described motor is anti-explosion motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535460 CN202946404U (en) | 2012-10-18 | 2012-10-18 | Novel sealing-free standing type self-priming centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535460 CN202946404U (en) | 2012-10-18 | 2012-10-18 | Novel sealing-free standing type self-priming centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946404U true CN202946404U (en) | 2013-05-22 |
Family
ID=48422111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535460 Expired - Fee Related CN202946404U (en) | 2012-10-18 | 2012-10-18 | Novel sealing-free standing type self-priming centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573919A (en) * | 2022-10-08 | 2023-01-06 | 利欧集团浙江泵业有限公司 | Vertical self-priming pump structure with cavitation and hydraulic performance |
-
2012
- 2012-10-18 CN CN 201220535460 patent/CN202946404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115573919A (en) * | 2022-10-08 | 2023-01-06 | 利欧集团浙江泵业有限公司 | Vertical self-priming pump structure with cavitation and hydraulic performance |
| CN115573919B (en) * | 2022-10-08 | 2024-03-15 | 利欧集团浙江泵业有限公司 | Vertical self-priming pump structure with cavitation and hydraulic performance |
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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: 20130522 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |