CN202718905U - Shielding pump for conveying pulp - Google Patents
Shielding pump for conveying pulp Download PDFInfo
- Publication number
- CN202718905U CN202718905U CN 201220274817 CN201220274817U CN202718905U CN 202718905 U CN202718905 U CN 202718905U CN 201220274817 CN201220274817 CN 201220274817 CN 201220274817 U CN201220274817 U CN 201220274817U CN 202718905 U CN202718905 U CN 202718905U
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- CN
- China
- Prior art keywords
- electric machine
- pump
- shielding
- rotating shaft
- shield electric
- 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
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Abstract
The utility model provides a shielding pump for conveying pulp and relates to the technical field of motor pumps, and the shielding pump is used for realizing the effect of avoiding mechanical seal invalidation. The shielding pump comprises a shielding motor, a pump shell and a pump impeller, wherein the pump shell is connected with the casing of the shielding motor by virtue of a coupler; the pump shell is provided with a feed port and a discharge port; the rotating shaft of the shielding motor penetrates through the coupler and extends into the pump shell; the pump impeller is arranged in the pump shell and coaxially and fixedly connected with the rotating shaft of the shielding motor; a mechanical seal is formed at the joint part of the rotating shaft of the shielding motor and the coupler; the stator winding and rotor core of the shielding motor are sealed in a waterproof manner; the rotor cavity of the shielding motor is provided with a sealed water port, and the cavity wall of the rotor cavity is waterproof; the coupler is provided with a flushing water port; and the outer port of the flushing water port faces the exterior of the coupler, and the inner port of the flushing water port faces the mechanical seal at the joint part of the rotating shaft of the shielding motor and the coupler. The shielding pump provided by the utility model is especially applicable to pumping the pulp containing solid particles.
Description
Technical field
The utility model relates to the electric-motor pump technology, particularly relates to a kind of technology of the canned motorpump for delivery of slurry.
Background technique
Canned motorpump mainly is comprised of shield electric machine, pump case, pump impeller, pump impeller is installed in the pump case, and coaxial affixed with the rotating shaft of shield electric machine, the rotating shaft of shield electric machine and the connecting part of joiner arrange mechanical seal, enter shield electric machine with the slurry that prevents from carrying in the pump case.
The defective of existing canned motorpump is: when utilizing the canned motorpump pumping to contain the slurry of solid particle, solid particle in the slurry is deposited in the mechanical sealing part of the junction of the rotating shaft of shield electric machine and joiner easily, and along with the slurry pressure fluctuation of material feeding mouth input enters mechanical seal, can cause the seal failure of mechanical seal, affect the working life of mechanical seal.
The model utility content
For the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides a kind ofly can effectively avoid the solid particle in the pumping slurry to enter mechanical sealing part, guarantee that effectively mechanical seal is good, improve the mechanical seal canned motorpump for delivery of slurry in working life.
In order to solve the problems of the technologies described above, a kind of canned motorpump for delivery of slurry provided by the utility model comprises shield electric machine, pump case, pump impeller; Described pump case is affixed through the casing of a joiner and shield electric machine, and pump case is provided with a material feeding mouth, a discharge port;
The rotating shaft of described shield electric machine is passed joiner and is stretched into pump case, and described pump impeller is installed in the pump case, and coaxial affixed with the rotating shaft of shield electric machine, the connecting part mechanical seal of the rotating shaft of shield electric machine and joiner;
It is characterized in that: the equal waterproof sealing of the staor winding of described shield electric machine and rotor iron core, the rotor cavity volume of shield electric machine are provided with a sealing mouth of a river, and the chamber wall of its rotor cavity volume is waterproof;
Described joiner is provided with a flushing mouth of a river, and the collar extension at this flushing mouth of a river is outside towards joiner, and internal orifice is towards the rotating shaft of shield electric machine and the mechanical seal of joiner connecting part.
The canned motorpump for delivery of slurry that the utility model provides, can be by the sealing mouth of a river of shielding motor rotor cavity volume, come the pressure surge of balance material feeding mouth input slurry to the rotor cavity volume injection pressure sealing water of shield electric machine, avoid containing the pumping slurry of solid particle near the mechanical seal position, can also carry out continual rinsing to the rotating shaft of shield electric machine and the mechanical sealing part injection pressure sparge water of joiner connecting part to mechanical sealing part by the flushing mouth of a river on the joiner, make the rubbing surface of mechanical seal remain the clean water film, can effectively avoid the solid particle in the pumping slurry to enter the mechanical seal position, effectively guarantee the good working environment of mechanical seal, improve mechanical seal working life.
Description of drawings
Fig. 1 is the utility model embodiment's the structural representation for delivery of the canned motorpump of slurry.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
As shown in Figure 1, a kind of canned motorpump for delivery of slurry that the utility model embodiment provides comprises shield electric machine 1, pump case 2, pump impeller 3; Described pump case 2 is affixed with the casing of shield electric machine 1 through a joiner 4, and pump case 2 is provided with a material feeding mouth 21, a discharge port 22;
The rotating shaft 11 of described shield electric machine 1 is passed joiner 4 and is stretched into pump case 2, described pump impeller 3 is installed in the pump case 2, and coaxial affixed with the rotating shaft 11 of shield electric machine 1, the rotating shaft 11 of shield electric machine 1 and the connecting part mechanical seal of joiner 4 enter shield electric machine with the slurry that intercepts in the pump case;
It is characterized in that: the staor winding 12 of described shield electric machine 1 and rotor iron core 13 equal waterproof sealings, the rotor cavity volume of shield electric machine 1 are provided with a sealing mouth of a river 5, and the chamber wall of its rotor cavity volume is waterproof;
Described joiner 4 is provided with a flushing mouth of a river 6, and the collar extension at this flushing mouth of a river 6 is towards joiner 4 outsides, and internal orifice is towards the rotating shaft 11 of shield electric machine 1 and the mechanical seal of joiner 4 connecting parts.
The utility model embodiment cooperates can provide the press water of press water water system to use, the sealing mouth of a river 5 of during use the press water of press water water system being received respectively the shielding motor rotor cavity volume for water end (W.E.), and the collar extension at the flushing mouth of a river 6 on the joiner 4, material feeding mouth on the pump case is received the slurry delivery outlet of outside slurry source, and the discharge port on the pump case is received the discharging point of destination.
When the utility model embodiment moved, the rotating shaft of shield electric machine 1 11 drove pump impeller 3 and rotates, and the material feeding mouth of slurry on pump case of outside slurry source output continues to enter pump case, and the discharge port from the pump case pumps again;
The press water that the press water water system is exported continues to flow into the rotor cavity volumes of shield electric machines 1 from the sealing mouth of a river 5, on the one hand shield electric machine is played cooling action, and all right balance is from the pressure of pump case material feeding mouth on the other hand;
The mechanical seal of the press water that the press water water system is exported from continuing to flow into and wash rotating shaft 11 and joiner 4 connecting parts from the flushing mouth of a river 6, prevent that the slurry of pumping is near this mechanical seal, keeping the rubbing surface of mechanical seal is the clean water film all the time, thereby prolongs the working life of this mechanical sealing part;
If the fluctuation of the slurry delivery pressure of outside slurry source is larger, can monitor the slurry delivery pressure of outside slurry source, and adjust the pressure of supply water of press water water system according to monitoring result, so that the pressure energy of shielding motor rotor cavity volume remains on the slurry delivery pressure that is higher than outside slurry source.
Claims (1)
1. the canned motorpump for delivery of slurry comprises shield electric machine, pump case, pump impeller; Described pump case is affixed through the casing of a joiner and shield electric machine, and pump case is provided with a material feeding mouth, a discharge port;
The rotating shaft of described shield electric machine is passed joiner and is stretched into pump case, and described pump impeller is installed in the pump case, and coaxial affixed with the rotating shaft of shield electric machine, the connecting part mechanical seal of the rotating shaft of shield electric machine and joiner;
It is characterized in that: the equal waterproof sealing of the staor winding of described shield electric machine and rotor iron core, the rotor cavity volume of shield electric machine are provided with a sealing mouth of a river, and the chamber wall of its rotor cavity volume is waterproof;
Described joiner is provided with a flushing mouth of a river, and the collar extension at this flushing mouth of a river is outside towards joiner, and internal orifice is towards the rotating shaft of shield electric machine and the mechanical seal of joiner connecting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274817 CN202718905U (en) | 2012-06-12 | 2012-06-12 | Shielding pump for conveying pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274817 CN202718905U (en) | 2012-06-12 | 2012-06-12 | Shielding pump for conveying pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718905U true CN202718905U (en) | 2013-02-06 |
Family
ID=47620729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274817 Expired - Lifetime CN202718905U (en) | 2012-06-12 | 2012-06-12 | Shielding pump for conveying pulp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718905U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317086A (en) * | 2017-01-18 | 2018-07-24 | 何巨堂 | The shielded electric pump of two kinds of auxiliary liquid input systems is set |
| CN110017284A (en) * | 2018-01-06 | 2019-07-16 | 何巨堂 | There are 2 grades or centrifugal multistage pump multiple centrifugal pump of at least two difference lift leakage fluid dram |
| CN111271288A (en) * | 2020-02-27 | 2020-06-12 | 洛阳瑞华新能源技术发展有限公司 | Centrifugal pump with main medium discharge port and rear pump cavity flushing liquid discharge port simultaneously |
-
2012
- 2012-06-12 CN CN 201220274817 patent/CN202718905U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317086A (en) * | 2017-01-18 | 2018-07-24 | 何巨堂 | The shielded electric pump of two kinds of auxiliary liquid input systems is set |
| CN110017284A (en) * | 2018-01-06 | 2019-07-16 | 何巨堂 | There are 2 grades or centrifugal multistage pump multiple centrifugal pump of at least two difference lift leakage fluid dram |
| CN111271288A (en) * | 2020-02-27 | 2020-06-12 | 洛阳瑞华新能源技术发展有限公司 | Centrifugal pump with main medium discharge port and rear pump cavity flushing liquid discharge port simultaneously |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |