Claims
- 1. A pump system comprising: an upper structure removable with respect to a vessel; a rotary shaft of the pump passing through the upper structure and freely extending down into the liquid contained in the vessel; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller in at least the radial direction; a bearing block to which the bearing is mounted; a diffuser mounted to the bearing block and disposed opposite to the fluid delivery port of the impeller; and a delivery pipe for leading the fluid coming out of the diffuser toward the outside of the pump whereby; the delivery pipe is supported in the vessel independently of the other components of the pump, the diffuser and delivery pipe are supported at a position lower than the rotary shaft and the bearing block is removably installed in the delivery pipe such that lateral vibration of the bearing is supported by the diffuser and delivery pipe.
- 2. A pump system comprising: a first unit and a second unit; the first unit consisting of: a pump rotary shaft free of a continuous surrounding casing; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; a bearing block to which the bearing is mounted; and a diffuser mounted to the bearing block; the second unit consisting of: a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft and the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit.
- 3. A pump system comprising: a first unit and a second unit; the first unit consisting of: a rotary shaft of the pump penetrating an upper structure and extending toward the second unit freely in the absence of a continuous surrounding wall; and impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; a bearing block to which the bearing is mounted; and a diffuser mounted to the bearing block; the second unit consisting of: a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump, whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and the first unit is also connected to the upper structure by circumferentially spaced support members providing a fluid passage.
- 4. A pump system comprising: a first unit and a second unit; the first unit consisting of: a rotary shaft of the pump penetrating an upper structure and extending toward the second unit freely in the absence of a continuous surrounding surface; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; a bearing block to which the bearing is mounted; and a diffuser mounted to the bearing block; the second unit consisting of: a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and the first unit is also connected to the upper structure by at least one support member defining a fluid passage.
- 5. A pump system comprising: a first unit and a second unit; the first unit consisting of: a pump rotary shaft free of a continuous surrounding surface; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; a bearing block to which the bearing is mounted; and a diffuser mounted to the bearing block; the second unit consisting of: a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and an end surface of the fluid delivery port of the diffuser is inclined outwardly toward the first unit.
- 6. A pump system comprising: a first unit and a second unit; the first unit consisting of: a pump rotary shaft having no continuous surrounding wall; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; a bearing block to which the bearing is mounted; and a diffuser mounted to the bearing block; the second unit consisting of: a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently at a position lower than the rotary shaft of the first unit, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and a sealing structure is provided in a very small gap formed between the opposing surfaces of the first and second units.
- 7. A pump system comprising: a first unit and a second unit; the first unit consisting of: a rotary shaft of the pump penetrating an upper structure and extending toward the second unit without a continuous surrounding wall; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; and a bearing block to which the bearing is mounted; the second unit consisting of: a diffuser for accepting the fluid from the fluid delivery port of the impeller; and a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and the first unit is also connected to the upper structure by circumferentially spaced support members defining a fluid passage.
- 8. A pump system comprising: a first unit and a second unit; the first unit consisting of: a rotary shaft of the pump penetrating an upper structure and extending without a continuous enclosure; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; and a bearing block to which the bearing is mounted; the second unit consisting of: a diffuser for accepting the fluid from the fluid delivery port of the impeller; and a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft, the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit, and the first unit is also connected to the upper structure by at least one support member defining a fluid passage.
- 9. A pump system comprising; a first unit and a second unit; the first unit consisting of: an unencased rotary shaft of the pump penetrating an upper structure; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; and a bearing block to which the bearing is mounted; the second unit consisting of: a diffuser for accepting the fluid from the fluid delivery port of the impeller; and a delivery pipe for leading the fluid coming out of the fluid delivery port of the diffuser toward the outside of the pump; whereby the second unit is supported independently of the first unit at a position lower than the rotary shaft and the first unit is removably assembled into the second unit such that lateral vibration of the bearing block is supported by the second unit.
- 10. A pump for sue in a reactor vessel comprising: a first unit and a second unit; the first unit consisting of: a pump rotary shaft penetrating an upper structure and free of a continuous casing therearound; an impeller mounted to the rotary shaft; a bearing for supporting the rotary shaft at a point above the impeller; and a bearing block to which the bearing is mounted; the second unit
Priority Claims (2)
Number |
Date |
Country |
Kind |
62-9852 |
Jan 1987 |
JPX |
|
62-50062 |
Mar 1987 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 137,259, filed on Dec. 23, 1987, now abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (2)
Number |
Date |
Country |
178014 |
Mar 1966 |
SUX |
253993 |
Mar 1970 |
SUX |
Continuations (1)
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Number |
Date |
Country |
Parent |
137259 |
Dec 1987 |
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