CN202266512U - Constant pressure fire pump - Google Patents
Constant pressure fire pump Download PDFInfo
- Publication number
- CN202266512U CN202266512U CN2011204057744U CN201120405774U CN202266512U CN 202266512 U CN202266512 U CN 202266512U CN 2011204057744 U CN2011204057744 U CN 2011204057744U CN 201120405774 U CN201120405774 U CN 201120405774U CN 202266512 U CN202266512 U CN 202266512U
- Authority
- CN
- China
- Prior art keywords
- pump
- water outlet
- water
- pumping chamber
- constant pressure
- 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
A constant pressure fire pump comprises a base, a pump body, a pump cover, an impeller and a pump shaft. The pump body comprises a water inlet, a pumping chamber, a pressurized-water chamber and a water outlet. The constant pressure fire pump is characterized in that the pressurized-water chamber is an annular pressurized-water chamber, the water outlet is provided with a conical water outlet diffusion tube with gradually increased inner diameter, and the water outlet diffusion tube is tangential with the inner wall of the annular pressurized-water chamber. Lift of the fire pump is very small in a large flow range, thereby being capable of meeting the requirements of multiple working conditions in fire protection work. The constant pressure fire pump is easy and convenient in processing technology, small in size, light in weight, stable in performance and suitable for the field of fire protection and water supply.
Description
Technical field
The utility model relates to fire water pump, says it is a kind of changes in flow rate constant basically constant voltage fire water pump of lift when big in detail.
Background technique
We know; Fire water pump comprises base, the pump housing, pump cover, impeller and pump shaft; The pump housing includes the mouth of a river, suction chamber, pumping chamber and water outlet, and existing fire water pump pumping chamber all is a scroll casing type spirality pumping chamber, though this pumping chamber efficient is higher; But lift is followed and is changed big shortcoming when existing changes in flow rate; In fire-fighting work because the uncertainty of position on fire, intensity of a fire size, need a kind of under the big situation of changes in flow rate lift change little water pump and satisfy various working condition requirements.
Summary of the invention
The purpose of the utility model is the deficiency that solves above-mentioned existing technology, provides a kind of volume little, light weight, and stable performance, lift changes very little constant voltage fire water pump in big range of flow.
The technological scheme that the utility model solves the problems of the technologies described above is; A kind of constant voltage fire water pump; Comprise base, the pump housing, pump cover, impeller and pump shaft, the pump housing includes the mouth of a river, suction chamber, pumping chamber and water outlet, it is characterized in that pumping chamber is annular pumping chamber; Water outlet is provided with internal diameter and becomes big taper water outlet diffusing tube gradually, and water outlet diffusing tube and annular pumping chamber inwall are tangent.
The beneficial effect of the utility model is; Because the pumping chamber of fire water pump is annular pumping chamber; Water outlet is provided with internal diameter and becomes big taper water outlet diffusing tube gradually; Water outlet diffusing tube and annular pumping chamber inwall are tangent, and fire water pump lift in a bigger range of flow changes very little, can satisfy the requirement of various working in the fire-fighting work.The utility model processing technology is easy, little, the light weight of volume, and stable performance is applicable to the fire supply field.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the structural representation of the utility model pumping chamber.
Embodiment
Constant voltage fire water pump as shown in the figure; Comprise base 1, the pump housing 3, pump cover 6, impeller 5 and pump shaft 7; The pump housing 3 includes the mouth of a river, suction chamber 2, pumping chamber 4 and water outlet; Pumping chamber 4 is annular pumping chamber, and water outlet is provided with internal diameter and becomes big taper water outlet diffusing tube 8 gradually, and water outlet diffusing tube 8 is tangent with annular pumping chamber inwall.This fire water pump lift in a bigger range of flow changes very little, can satisfy the requirement of various working in the fire-fighting work.The utility model processing technology is easy, little, the light weight of volume, and stable performance is applicable to the fire supply field.
Claims (1)
1. constant voltage fire water pump; Comprise base, the pump housing, pump cover, impeller and pump shaft; The pump housing includes the mouth of a river, suction chamber, pumping chamber and water outlet; It is characterized in that pumping chamber is annular pumping chamber, water outlet is provided with internal diameter and becomes big taper water outlet diffusing tube gradually, and water outlet diffusing tube and annular pumping chamber inwall are tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204057744U CN202266512U (en) | 2011-10-24 | 2011-10-24 | Constant pressure fire pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204057744U CN202266512U (en) | 2011-10-24 | 2011-10-24 | Constant pressure fire pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266512U true CN202266512U (en) | 2012-06-06 |
Family
ID=46157310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204057744U Expired - Fee Related CN202266512U (en) | 2011-10-24 | 2011-10-24 | Constant pressure fire pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762784A (en) * | 2016-12-06 | 2017-05-31 | 芜湖市容川机电科技股份有限公司 | Spheroidal graphite cast-iron drilling platforms high pressure cylinders |
-
2011
- 2011-10-24 CN CN2011204057744U patent/CN202266512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762784A (en) * | 2016-12-06 | 2017-05-31 | 芜湖市容川机电科技股份有限公司 | Spheroidal graphite cast-iron drilling platforms high pressure cylinders |
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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: 20120606 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |