CN204239318U - A kind of proof submersible sand discharging pump - Google Patents
A kind of proof submersible sand discharging pump Download PDFInfo
- Publication number
- CN204239318U CN204239318U CN201420411846.XU CN201420411846U CN204239318U CN 204239318 U CN204239318 U CN 204239318U CN 201420411846 U CN201420411846 U CN 201420411846U CN 204239318 U CN204239318 U CN 204239318U
- Authority
- CN
- China
- Prior art keywords
- pump housing
- sand discharging
- pump
- impeller
- choma
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of proof submersible sand discharging pump, comprise base, the pump housing be arranged on base, the submersible motor parts that are arranged on the impeller in the pump housing and are connected with the pump housing through grease chamber, be provided with the choma as shaft seal in the pump housing, between this choma and wheel hub of impeller, form the radial clearance of the pressure drop that makes the sealing surface of pump side bear.Compared with prior art, the utility model grease chamber delicate structure, sealing configuration are reasonable, can pass through larger dirt particle.
Description
Technical field
The utility model relates to a kind of waste removal equipment, especially relates to a kind of proof submersible sand discharging pump.
Background technique
On market, existing proof submersible sand discharging pump is all heavier, and some unit is when double seals is selected in design, and structural design is too simple, and pump side sealing surface directly understands the pressure of bearing pump intracavity liquid, causes mechanical sealing effect very poor.
Application number be 201110153353.1 Chinese patent disclose a kind of proof submersible sand discharging pump, comprise the pump housing, motor, motor shaft, large impeller, coolship, lower bearing room, and form the plug cock cover of coolship between lower bearing room, motor cooling chamber and the honeycomb duct communicated with motor cooling chamber, large impeller is fixed on the end of motor shaft, motor cooling chamber communicates with coolship, lower bearing room is fixed with plug cock lid, a cavity communicated with coolship is formed between this plug cock lid with plug cock cover, this cavity communicates with honeycomb duct, small impeller is provided with in coolship, small impeller comprises wheel hub and multiple blade, wheel hub and motor shaft are fixed, multiple blade is fixed on wheel hub equably, but this kind of pollution discharge pump structure relative complex, maintenance cost is higher.
Model utility content
The purpose of this utility model is exactly provide a kind of grease chamber delicate structure, sealing configuration reasonable to overcome defect that above-mentioned prior art exists, can by the proof submersible sand discharging pump of larger dirt particle.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of proof submersible sand discharging pump, comprises base, the pump housing be arranged on base, the submersible motor parts that are arranged on the impeller in the pump housing and are connected with the pump housing through grease chamber,
Be provided with the choma as shaft seal in the described pump housing, between the wheel hub of this choma and described impeller, form the radial clearance of the pressure drop that makes the sealing surface of pump side bear.
Described choma is dynamic double mechanical seal dynamic and static ring.
Described choma is arranged on and fills in the grease chamber of lubricating oil.
The described pump housing and submersible motor element coaxial.
Described impeller is the impeller of double flow channel structure.
Described grease chamber is directly installed on the pump housing.
Compared with prior art, the utility model has the following advantages:
(1) small―gap suture that the liquid in pump chamber forms through impeller hub and pump housing choma, makes the pressure drop that the sealing surface of pump side bears, thus makes the work that double mechanical seal dynamic and static ring is more stable;
(2) grease chamber is directly contained on the pump housing, and economize Lv Liao You Shigai, whole double mechanical seal dynamic and static ring all works in the grease chamber filling lubricating oil;
(3) the impeller hydraulic efficiency of double flow channel design is high, and pump housing runner is spacious, high by dirt ability, not silting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1 be base, 2 be impeller, 3 be the pump housing, 4 be shaft seal, 5 be grease chamber, 6 for submersible motor parts.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
A kind of proof submersible sand discharging pump, its structure as shown in Figure 1, comprises base 1, the pump housing 3 be arranged on base 1, the submersible motor parts 6 that are arranged on the impeller 2 in the pump housing 3 and are connected with the pump housing 3 through grease chamber 5,
The choma as shaft seal 4 is provided with in the pump housing, a radial clearance is formed between the wheel hub of this choma and impeller 2, in the present embodiment, radial clearance is 0.3mm, the small―gap suture that liquid in pump chamber forms through impeller hub and pump housing choma, make the pressure drop that the sealing surface of pump side bears, thus make the work that double mechanical seal dynamic and static ring is more stable.In the present embodiment, the choma of use is dynamic double mechanical seal dynamic and static ring, and being wherein graphite-silicon carbide material near submersible motor parts 6 side, is silicon carbide-carbon SiClx material near the pump housing 3 side.In addition, grease chamber 5 is directly contained on the pump housing 3, and economize Lv Liao You Shigai, whole shaft seal 4 all works in the grease chamber filling lubricating oil, and impeller 2 adopts double flow channel to design, and hydraulic efficiency is high, and pump housing runner is spacious, high by dirt ability, not silting.
Claims (6)
1. a proof submersible sand discharging pump, comprises base, the pump housing be arranged on base, the submersible motor parts that are arranged on the impeller in the pump housing and are connected with the pump housing through grease chamber,
It is characterized in that, in the described pump housing, be provided with the choma as shaft seal, between the wheel hub of this choma and described impeller, form the radial clearance of the pressure drop that makes the sealing surface of pump side bear.
2. a kind of proof submersible sand discharging pump according to claim 1, is characterized in that, described choma is dynamic double mechanical seal dynamic and static ring.
3. a kind of proof submersible sand discharging pump according to claim 1 and 2, is characterized in that, described choma is arranged on and fills in the grease chamber of lubricating oil.
4. a kind of proof submersible sand discharging pump according to claim 1, is characterized in that, the described pump housing and submersible motor element coaxial.
5. a kind of proof submersible sand discharging pump according to claim 1, is characterized in that, described impeller is the impeller of double flow channel structure.
6. a kind of proof submersible sand discharging pump according to claim 1, is characterized in that, described grease chamber is directly installed on the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411846.XU CN204239318U (en) | 2014-07-24 | 2014-07-24 | A kind of proof submersible sand discharging pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420411846.XU CN204239318U (en) | 2014-07-24 | 2014-07-24 | A kind of proof submersible sand discharging pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239318U true CN204239318U (en) | 2015-04-01 |
Family
ID=52768821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420411846.XU Expired - Fee Related CN204239318U (en) | 2014-07-24 | 2014-07-24 | A kind of proof submersible sand discharging pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239318U (en) |
-
2014
- 2014-07-24 CN CN201420411846.XU patent/CN204239318U/en not_active Expired - Fee Related
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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: 20150401 Termination date: 20210724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |