CN2804437Y - Vertical centrifugal cyclone constant pressure fire pump - Google Patents
Vertical centrifugal cyclone constant pressure fire pump Download PDFInfo
- Publication number
- CN2804437Y CN2804437Y CN 200520110591 CN200520110591U CN2804437Y CN 2804437 Y CN2804437 Y CN 2804437Y CN 200520110591 CN200520110591 CN 200520110591 CN 200520110591 U CN200520110591 U CN 200520110591U CN 2804437 Y CN2804437 Y CN 2804437Y
- Authority
- CN
- China
- Prior art keywords
- pump
- motor
- utility
- water
- impeller
- 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
Abstract
The utility model belongs to the technical field of liquid machinery and engineering equipment. The utility model relates to a vertical centrifugal cyclone constant pressure fire pump which comprises a motor chamber and a pump chamber vertically connected with each other. The pump chamber is composed of an outer shell which is provided with a water inlet and a water outlet, and a supporting base which is supported at the bottom of the outer shell. A centrifugal cyclone flow pump is arranged in the outer shell, and an impeller of the pump shares the same shaft with the motor. The shaft passes through a sealing element and enters the pump chamber from the inner part of the motor to be connected with the impeller of the centrifugal cyclone flow pump. An impeller blade of the utility model is a semi-open type basic radial blade. After a water flow enters the pump through the inlet of the pump, the water flow obtains a rotary rate under the action of the blade, and thus, energy is obtained to be transformed into pressure energy in order to form a pump lift of the utility model. The pump lift of the utility model changes very little following the change of flow rate, so the utility model meets the requirement that the water pressure of the outlet of the fire pump changes very little when the water discharge amount is increased for fire protection.
Description
Technical field
The utility model belongs to the Fluid Machinery and Engineering equipment technical field, relates to a kind of design of vertical centrifugal eddy flow building level pressure fire water pump.
Technical background
In recent years, along with the urbanization construction makes important progress, large-scale or super sized type high stored building group, complicated architectural complex increase rapidly.These change when promoting national economy and social development, and all kinds of fire-fighting systems have been proposed requirements at the higher level.
In existing fire system, except the special nature fire, Water fire extinguishing system is better than other system because of having good control fire, fire extinguishing effect and having no side effect.In the Water fire extinguishing system, it is several to mainly contain automatic sprinkling type, fire hydrant formula, the formula that drenches with rain, water curtain style etc., and wherein fire hydrant formula and automatic sprinkling type are at present domestic common two kinds, also are the principal modes of future development simultaneously.But no matter the Water fire extinguishing system of which kind of form all exists Security, reliability and stability problem.Fire water pump is the heart of water fire extinguishing water supply system, adopts centrifugal pump more.But having a very big defective when centrifugal pump is applied to Water fire extinguishing system, is exactly along with flow increases, and lift of pump can significantly reduce.And in the fire water pump actual motion, the actual fire consumption at fire initial stage is much smaller than the selected flow of water pump, and delivery side of pump pressure becomes big like this, can the safety of water transfer pipe network be constituted a threat to; And along with the carrying out of fire extinguishing procedure, because the influence of various factors, the demand of fire consumption can increase, and when surpassing the selected flow of water pump, pump discharge pressure can reduce, thereby directly influences the carrying out of fire extinguishing procedure, and then enlarges fire loss.
The method that addresses this problem normal employing at present has: 1. adopt branch's stream pump.Branch's stream pump can be realized constant pressure water supply, but has unfavorable factors such as vibrating noise is big, operational efficiency is extremely low, flow is little.When particularly existing branch stream pump is installed in building inside, can have a strong impact on the proper functioning of other each systems in the building because of its huge vibration, noise; 2. adopt the centrifugal pump speed control system.This centrifugal pump speed control system has solved to a certain extent along with flow increases, the significantly reduced problem of lift of pump meeting, but huge frequency conversion speed-adjusting system equipment is huge, cost is high, floor space is big, and the most serious problem is various because of system unit, causes whole system reliability variation.
Therefore, present fire water pump or fire water pump unit are difficult to satisfy the fire-fighting situation of Future Society, and it is imperative to develop efficient, reliable novel fire water pump.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art, designs a kind of vertical centrifugal eddy flow voltage stabilizing fire water pump, and it has vertical layout, and is easy to install, and the occupation space volume is little, is easy to starting; Lift is with the little characteristics of changes in flow rate; Can be used for family and large-scale building.
The vertical centrifugal eddy flow voltage stabilizing fire water pump that the utility model proposes, it is characterized in that, comprise vertical continuous motor and pump chamber, this pump chamber is made of shell that is provided with entery and delivery port and the bearing that is supported on this outer casing bottom, is provided with by motor shaft the centrifugal cyclone pump that constitutes with the impeller that links to each other with motor shaft in this shell, the impeller of this pump and motor have an axle, this axle behind Sealing, enters pump chamber from the motor internal rotor.
Characteristics of the present utility model: pump shaft and motor shaft are the one vertical pivot, and two the ball bearing supportings up and down by in the motor from the motor lower cover, behind Sealing, enter pump chamber, are connected with impeller.Motor cavity all is in and the water isolation.The pump housing can vertically be placed in the water, when pump starts, and need not water-filling.Current obtain rotational speed by the blade effect after entering from pump inlet, thereby obtain energy, further change into the pressure energy in pump chamber, form lift of pump.This lift of pump is little with changes in flow rate, guarantees that the fire fighting supply pump exports the little requirement of variation in water pressure with the increasing of fire-fighting water flow.
The utility model can adopt single phase motor for the small home application model, but needs building-out condenser.Can adopt three phase motor for industry and building etc., use capacitor and needn't add.
Description of drawings
Fig. 1 is a vertical centrifugal torque flow pump structural profile schematic representation of the present utility model.
Fig. 2 is vertical centrifugal torque flow pump impeller figure of the present utility model; Wherein, Fig. 2 a is an impeller longitudinal cross-section schematic representation,
Fig. 2 b is the impeller transverse sectional view.
Embodiment
The vertical centrifugal eddy flow fire water pump structure of the utility model design implements and appended detail drawing is described as follows:
The general structure of present embodiment mainly comprises the motor of being made up of motor top cover 14, motor cavity 15 and motor vertical drive shaft 13 as shown in Figure 1, electric machine support 11, and motor is connected with electric machine support 11 by bolt 12; The pump chamber that the support of being made up of the water sucking mouth of vertical centrifugal torque flow pump 1 and the end face of electric machine support 11, the pump housing 3 that has water outlet and sealing gland 9 are connected to form by bolt 2 and 7 respectively.Impeller 6 is arranged in the pump chamber, and impeller is fixed on the lower end of vertical drive shaft 13 by nut 4.Axle 13 is supported by the ball bearing in the motor, enters pump chamber from the Seal cage of motor lower cover by electric machine support, is connected with impeller 6.Stuffing box packing part 10 is pressed in the Seal cage of electric machine support by bolt 8 and sealing gland 9, seals.Molded lines is that toroidal helical is linear in the pump chamber.
The impeller 6 of present embodiment is a semi-open type, and working blade 61 and back blade 62 are fixed on the impeller hub disk 60, and back blade and working blade form are basic radial blade.8 pieces of back blades, 9 pieces of working blades, the angle α of adjacent two working blades are 40 ° (being determined by the quantity of working blade), and working blade exit angle β is 120 ° (generally in 60 ° of-120 ° of scopes all can), as shown in Figure 2.
The working principle of present embodiment is: connect the power supply of motor, the drive shaft turns of motor.After current enter from pump inlet, obtain rotational speed by vertical shaft impeller blade, thereby obtain energy, in pump chamber, further change into the pressure energy, form lift of pump.Because adopt the eddy flow principle design, this lift of pump is little with changes in flow rate, guarantee that the fire fighting supply pump exports the little requirement of variation in water pressure with the increasing of fire-fighting water flow.
Adopt the concrete vertical centrifugal eddy flow fire water pump of the structure of present embodiment in 30% rated flow during to rated flow, the lift variation is not more than 3%; Flow is from the rating value to the peak rate of flow when (rated flow 150%), and lift changes and is not more than 5%.Can reach the requirement of fire-fighting pressure-stabilizing water supply.
Claims (6)
1, a kind of vertical centrifugal eddy flow voltage stabilizing fire water pump, it is characterized in that, comprise vertical continuous motor cavity and pump chamber, this pump chamber is made of shell that is provided with entery and delivery port and the bearing that is supported on this outer casing bottom, be provided with the centrifugal cyclone pump in this shell, the impeller of this pump and motor have an axle, and this axle links to each other with the impeller of centrifugal cyclone pump by entering pump chamber behind the Sealing from motor internal.
2, vertical centrifugal eddy flow level pressure fire water pump as claimed in claim 1 is characterized in that the blade of described impeller is the radial blade of semi-open type, 60 °-120 ° of blade outlet angles.
3, vertical centrifugal eddy flow level pressure fire water pump as claimed in claim 1 is characterized in that described Sealing is made of packing seal element.
4, vertical centrifugal eddy flow level pressure fire water pump as claimed in claim 1 is characterized in that, described motor adopts single phase motor, is provided with capacitor in described motor cavity.
5, vertical centrifugal eddy flow level pressure fire water pump as claimed in claim 1 is characterized in that, described motor adopts three phase electric machine.
6, vertical centrifugal eddy flow level pressure fire water pump as claimed in claim 1 is characterized in that, molded lines is that toroidal helical is linear in the described pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110591 CN2804437Y (en) | 2005-07-01 | 2005-07-01 | Vertical centrifugal cyclone constant pressure fire pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110591 CN2804437Y (en) | 2005-07-01 | 2005-07-01 | Vertical centrifugal cyclone constant pressure fire pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804437Y true CN2804437Y (en) | 2006-08-09 |
Family
ID=36909729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520110591 Expired - Fee Related CN2804437Y (en) | 2005-07-01 | 2005-07-01 | Vertical centrifugal cyclone constant pressure fire pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804437Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321913A (en) * | 2013-05-09 | 2013-09-25 | 袁国祥 | Micro-scale fire pump for high-rise buildings |
| CN107829950A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | A kind of Horizontal-type self-absorption centrifugal-peripheral combination pump |
| CN113958506A (en) * | 2021-07-31 | 2022-01-21 | 高涛 | Centrifugal pump |
-
2005
- 2005-07-01 CN CN 200520110591 patent/CN2804437Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321913A (en) * | 2013-05-09 | 2013-09-25 | 袁国祥 | Micro-scale fire pump for high-rise buildings |
| CN107829950A (en) * | 2017-10-20 | 2018-03-23 | 项达章 | A kind of Horizontal-type self-absorption centrifugal-peripheral combination pump |
| CN113958506A (en) * | 2021-07-31 | 2022-01-21 | 高涛 | Centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102889212B (en) | Blade high-efficient energy-saving environment friendly vacuum pump | |
| CN201723460U (en) | Variable frequency high speed wet-type submersible pump | |
| CN2804437Y (en) | Vertical centrifugal cyclone constant pressure fire pump | |
| CN106122030A (en) | A kind of rated lift type variable horizontal type multi-stage pump | |
| CN104564717A (en) | Direct driven high-speed turbine vacuum pump and operation method thereof | |
| CN101074677A (en) | Hydraulically-driven fan for cooling tower | |
| CN204755337U (en) | High power capacity lightweight flood -control and drought relief axial -flow pump | |
| CN204267313U (en) | direct-drive high-speed turbine vacuum pump | |
| CN201326551Y (en) | Intelligent water pump | |
| CN1815033A (en) | High-pressure spiral-coil pump | |
| CN2874075Y (en) | Three dimension centrifugal pressure stabilizing pump | |
| CN205689443U (en) | A kind of multistage multifunctional pump for heating system | |
| CN202144792U (en) | Pressurizing water injection system of screw pump | |
| CN201636024U (en) | Low-rotary-speed and large-displacement electric submersible screw pump oil-production system | |
| CN108397395A (en) | A kind of multistage water supply pump applied to skyscraper | |
| CN2842036Y (en) | The blade type gas-liquid is mixed defeated pump | |
| CN204851671U (en) | A novel booster water pump for high -rise building | |
| CN106930950A (en) | Speed variable low noise self-priming combination pump | |
| CN209278153U (en) | A kind of micro- lift pump installation of backhoe type blade | |
| CN106194783A (en) | A kind of gear type cantilever two-stage water vapour compressor | |
| CN203488256U (en) | Novel self-absorption centrifugal peripheral pump | |
| CN2554392Y (en) | Self-priming vertical multi-stage centrifugal pump | |
| CN2415186Y (en) | Unit construction centrifugal water pump | |
| CN205956005U (en) | Novel doublestage of intelligence does not have sealed automatic control self priming pump | |
| CN203098377U (en) | Energy-saving constant-pressure sinking pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |