CN2237135Y - Vertical single stage hot water circular centrifugal pump - Google Patents
Vertical single stage hot water circular centrifugal pump Download PDFInfo
- Publication number
- CN2237135Y CN2237135Y CN 95245128 CN95245128U CN2237135Y CN 2237135 Y CN2237135 Y CN 2237135Y CN 95245128 CN95245128 CN 95245128 CN 95245128 U CN95245128 U CN 95245128U CN 2237135 Y CN2237135 Y CN 2237135Y
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- CN
- China
- Prior art keywords
- pump
- hot water
- single stage
- stage hot
- vertical single
- 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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Abstract
The utility model relates to a vertical single stage hot water circular centrifugal pump, which is formed into a vertical structure which is composed of the mutual connection of a pump body, a pump cover, a middle frame, a bearing body, the support of a motor, a motor, and a base. The point of a water inlet which is arranged at one side of the pump body is connected with a water inlet elbow. A rotor member which is composed of an impeller, a shaft sleeve, a bearing, and an impeller nut is connected with the rotor of the motor through a shaft coupling. The top part of the pump cover is provided with a sealing element and a refrigerating device. The utility model has the advantages of simple structure, stable operation, low noise, small ground occupation, convenient installation and maintenance, long service life, and high reliability. The utility model is an ideal fire extinguishing pump for the hot water circulation and the water supply of a high floor building.
Description
The utility model relates to a kind of technological improvement of circulating water pump, specifically is a kind of vertical single stage hot water circuit centrifugal pump.
At present, China's concentrated supply of heating in the city or factory, mine, the heating engineering of organ, school, generally select horizontal hot water circuit centrifugal pump for use, it is big that the centrifugal pump of this structure exists floor space, the operating noise height, the installation and maintenance complexity, poor reliability often because of the appearance of unit fault, causes the phenomenon that stops heat supply.
The purpose of this utility model is the deficiency at above-mentioned horizontal hot water circuit centrifugal pump, and a kind of vertical single stage hot water circuit centrifugal pump is provided.
To achieve these goals, the scheme that the utility model solves is: the pump housing one side with bolt on base is provided with water outlet, the water intake that the neutral position, lower end surface of the pump housing is provided with is connecting the water inlet bend pipe, the upper end of the pump housing and pump cover, intermediate support connects as one with bolt, be lined with paper spacer between the pump cover and the pump housing, seal ring is equipped with in the pump cover lower end, axle envelope parts and cooling unit are equipped with in the upper end, the intermediate support axial position is equipped with bearing support, bearing, pump shaft, the upper end of pump shaft is equipped with coupling and is connected with motor shaft, axle sleeve is equipped with in the lower end, impeller is by key, impeller nut, stopping shim is fixed, and promptly constitutes the rotor part of pump.The pump housing, pump cover, impeller are connected to each other forms the pump working chamber, and during work, impeller produces high-liftly to the liquid work done after the rotor part of pump is with motor reel high speed rotating together, can realize that pumping temperature is not higher than the function of 150 ℃ of liquid.
The utility model is used for that following characteristics are arranged behind the tall building feedwater fire fighting supply of central heat supply:
1, unit efficiency height: because the performance parameter stipulated among the ISC2856 of adopting international standards, the hydraulic model of preferred advanced 2R type hot water pump, adapted the energy-efficient Y series motor of national popularization, thereby improved unit efficiency.
2, the unit floor space is little: complete machine is the vertical single stage structure, has removed the big base of former 2R pump heaviness, has saved the installation floor space, only is the 1/4-1/3 of 2R type pump floor space.Be specially adapted to the less and tall building of heating boiler room area, fire supply.
3, easy for installation: the relative water outlet of water inlet bend pipe of this water pump is adjusted installation arbitrarily easily on 0 ° of circumferencial direction, 90 °, 180 °, 270 ° positions, thereby is specially adapted to the layout use of various complexity.
4, rational in infrastructure, easy to maintenance, reliability is high: this pump adopts vertical structure, pump housing upward-acting door, easy to maintenance, motor is adopting the seam location with electric machine support topmost, motor shaft connects with elastic coupling flexible coupling with pump shaft, thus pump running steadily, noise is low, the life-span is long, safe and reliable.
Figure I is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model embodiment is further described.
By shown in Figure 1: the pump housing (23) one sides that go up by bolt at base (1) are provided with water outlet (6), and the lower end surface centre bit of the pump housing is equipped with water intake (24).Be lined with paper spacer (7) between the pump housing and pump cover (8) are fixing.Mechanical shaft seal parts (18) and cooling unit (20) are equipped with in the pump cover top.Pump housing water intake is connecting water inlet bend pipe (25), and supporting screw (26) is being fixed in the lower end of bend pipe.Two seal rings (21) are tight with at the upper and lower end of pump housing inner chamber respectively, and constitute seal clearance with the two ends of impeller (2).Impeller sleeve (9) is fixed in the lower end of pump shaft (16) with key (5), impeller nut (3), stopping shim (4).The bearing support (10) that is equipped with on bearing (11) that be equipped with at the pump shaft middle part and the middle frame (17) cooperatively interacts, and is bearing rotor part warp-wise and axial force, and rotor part is made up of parts such as impeller, axle sleeve, coupling.The coupling (12) that be equipped with the pump shaft upper end is connected as a single entity with motor shaft, transmits the moment of torsion of motor.Middle frame (17) and pump cover are by being bolted on the pump housing, and the middle part is provided with two maintenance windows (19), electric machine support (14) with bolt above, and the motor middle part is provided with two peep holes (15), and motor (13) is equipped with at the top.When motor shaft during with rotor part high speed rotating together, drive the impeller that is equipped with in the working room (22) liquid is produced moving lift, realize that pumping temperature is not higher than the function of 150 ℃ of liquid.
Claims (3)
1, a kind of by base, the pump housing, pump cover, middle frame, the vertical single stage hot water circuit centrifugal pump that electric machine support etc. are formed, it is characterized in that: pump cover (8) is equipped with on base (1) upper-end surface fixed pump body (23) top, middle frame (11), electric machine support (14), be to be interconnected to vertical structure with bolt, the middle frame axial position is equipped with bearing support (10), one side of the pump housing (23) is provided with water outlet (6), connecting water inlet bend pipe (25) on the water intake that the central position, lower end surface is provided with (24), the impeller that is equipped with in the pump housing (2), seal ring (21) constitutes working room (22) with pump cover.
2, vertical single stage hot water circuit centrifugal pump according to claim 1 is characterized in that: mechanical shaft seal parts (18), cooling unit (20) and seal ring (21) are equipped with in pump cover (8) top.
3, vertical single stage hot water circuit centrifugal pump according to claim 1 is characterized in that: middle frame is provided with maintenance window (19), and electric machine support is provided with peep hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245128 CN2237135Y (en) | 1995-07-15 | 1995-07-15 | Vertical single stage hot water circular centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95245128 CN2237135Y (en) | 1995-07-15 | 1995-07-15 | Vertical single stage hot water circular centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237135Y true CN2237135Y (en) | 1996-10-09 |
Family
ID=33885349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95245128 Expired - Fee Related CN2237135Y (en) | 1995-07-15 | 1995-07-15 | Vertical single stage hot water circular centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237135Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159543A (en) * | 2017-12-27 | 2019-08-23 | 浙江中太泵业科技有限公司 | A kind of centrifugal pump of single stage type of easy access |
-
1995
- 1995-07-15 CN CN 95245128 patent/CN2237135Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159543A (en) * | 2017-12-27 | 2019-08-23 | 浙江中太泵业科技有限公司 | A kind of centrifugal pump of single stage type of easy access |
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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 |