CN203604143U - Fixing device for low-temperature immersed pump - Google Patents
Fixing device for low-temperature immersed pump Download PDFInfo
- Publication number
- CN203604143U CN203604143U CN201320655001.0U CN201320655001U CN203604143U CN 203604143 U CN203604143 U CN 203604143U CN 201320655001 U CN201320655001 U CN 201320655001U CN 203604143 U CN203604143 U CN 203604143U
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- Prior art keywords
- immersed pump
- end cap
- fixing device
- shell
- locking device
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model discloses a fixing device for a low-temperature immersed pump, and belongs to the field of low-temperature storage tanks. The technical problems that according to an existing fixing device for the immersed pump, the immersed pump easily vibrates, and overhauling is difficult are solved. According to the adopted technical scheme, the fixing device for the low-temperature immersed pump structurally comprises an outer shell, an end cover and the immersed pump, wherein the end cover is connected with the outer shell, and the immersed pump is arranged inside the outer shell and fixed to the end cover. A radial positioning mechanism is arranged between the outer shell and the immersed pump and structurally comprises a wedge block and a locking device, wherein the wedge block is arranged and positioned between the immersed pump and the outer shell, one end of the locking device is connected with the wedge block, the other end of the locking device is connected with the end cover, and the radial positioning fit of the immersed pump is formed by the wedge block and the end cover with the help of the locking device. The fixing device for the low-temperature immersed pump has the advantages of being simple in structure, convenient to use, reliable and capable of effectively fixing and supporting the immersed pump, thereby ensuring the service life of the immersed pump.
Description
Technical field
The utility model relates to low-temperature storage tank field, is specially a kind of fixing device of low temperature immersed pump.
Background technique
At present, low temperature immersed pump is generally placed on that low-temperature storage tank is outer to be built separately in industry, and immersed pump is general vertical to be positioned over independently in pump pond, and pump pond is generally double-layered cylinder vacuum cold insulation structure.Low temperature immersed pump is the general end bolt means of fixation that adopts in pump pond, and the pump housing is distributed with several around and supports, and contact and realize supporting effect, but this circularity to cylinder is had relatively high expectations with pump pond inner cylinder.But while together packing in pump pond after actual immersed pump and end cap fix, between support and pump pond inner cylinder, certainly exist gap.This causes the pump housing unsettled, is in operation and is prone to vibration and noise, affects the working life of immersed pump simultaneously.Another is that immersed pump is positioned in low-temperature storage tank, and immersed pump is connected and fixed by fixed support and tank bottom.For solving the installation of immersed pump and maintenance, replacing problem, storage tank tank body operated by rotary motion manhole structure, causes that structure is more complicated and refrigerating loss is larger.In the time of needs maintenance and replacing immersed pump, need the cryogenic liquide in complete removal storage tank, and qualified through replacing, could enter from manhole, the cycle of maintenance and replacing immersed pump is longer, and expense is higher.
Summary of the invention
The utility model will solve existing immersed pump fixed structure and is prone to immersed pump vibration and overhauls difficult problem, design a kind of fixing device of low temperature immersed pump, thereby the locking device that multiple voussoirs is set around immersed pump and be connected with voussoir makes voussoir and shell and immersed pump fit tightly the object that realizes effectively fixing immersed pump, and this fixing device is lower to the requirement of shell, immersed pump can effectively be supported, and is in operation and can effectively alleviates vibration and noise.
The technical solution adopted in the utility model is: a kind of fixing device of low temperature immersed pump, end cap that structure comprises shell, be connected with shell, arrange in the enclosure and be fixed on the immersed pump on end cap, its key is: between shell and immersed pump, be provided with radial positioning mechanism, structure comprises that voussoir, one end of being positioned between immersed pump and shell are set is connected the locking device that the other end is connected with end cap with voussoir, and voussoir coordinates with the radial location that end cap forms immersed pump by locking device.
Immersed pump, except fixing with end bolt and end cap, couples together voussoir and end cap with several screw rods.When immersed pump is installed, voussoir and shell and immersed pump fit tightly, and immersed pump can effectively be fixed and support, and are in operation and can effectively alleviate vibration and noise.When needing dismounting and changing immersed pump, without entering tank inside, only need to remove end cap fixing bolt, unclamp screw rod end locking nut, and knock screw rod, and make to occur gap between voussoir and shell and immersed pump, just end cap together can be pulled down together with pump and pipeline.
Of the present utility model producing effect is: one, this fixing device both can be positioned in low-temperature storage tank, also can be positioned over outside low-temperature storage tank, applied widely; Two, immersed pump is effectively fixed and is supported, and has alleviated vibration, has reduced noise, thereby guaranteed the working life of immersed pump; Three, without the installation and the maintenance that manhole is set can reaches immersed pump at low-temperature storage tank; Four, simple in structure, convenient and reliable.
Below in conjunction with accompanying drawing, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is that the fixing device of a kind of low temperature immersed pump of the utility model is placed in the structural representation in low-temperature storage tank;
Fig. 2 is that the fixing device of a kind of low temperature immersed pump of the utility model is placed in the structural representation outside low-temperature storage tank.
In accompanying drawing, the 0th, low-temperature storage tank, the 1st, immersed pump, the 2nd, voussoir, the 3rd, screw rod, the 4th, shell, the 5th, sealing gasket, the 6th, nut, the 7th, locking nut, the 8th, sealing nut, the 9th, bolt, the 10th, end cap, the 11st, bolt, the 12nd, flange.
Embodiment
Referring to accompanying drawing, a kind of fixing device of low temperature immersed pump, end cap 10 that structure comprises shell 4, be connected with shell 4, be arranged in shell 4 and be fixed on the immersed pump 1 on end cap 10, its key is: between shell 4 and immersed pump 1, be provided with radial positioning mechanism, structure comprises that voussoir 2, one end of being positioned between immersed pump 1 and shell 4 are set is connected the locking device that the other end is connected with end cap 10 with voussoir 2, and voussoir 2 coordinates with the radial location that end cap 10 forms immersed pump 1 by locking device.By adjusting locking device and end cap 10 cooperate degrees, voussoir 2 fits tightly with immersed pump 1 and shell 4, in use reduces vibration, reduces noise thereby reach fixing and support immersed pump 1.
Shell 4 free ends are fixed with flange 12, and end cap 10 is connected with shell 4 by flange 12.
Described locking device comprises that one end and voussoir 2 are fixedly connected with the other end through the screw rod 3 of the through hole of end cap 10 and are connected and are pressed on the nut 6 of end cap 10 by screw pair and screw rod 3 free ends.Screw rod 3 also adopts screw pair with being fixedly connected with of voussoir 3.Screw pair is simple in structure, easily manufactured, just can adjust the tightness of voussoir 2 and shell 4 and immersed pump 1 by adjusting nut 6.
In described locking device, also comprise being connected to and on screw rod 3 and with nut 6, coordinate the locking nut 7 that forms anti-loose structure.
Described radial positioning mechanism is at least provided with 3 groups.Adopt 3 groups and above radial positioning mechanism can fix better immersed pump 1.
The cambered surface with tapering or plane that described voussoir 2 is provided with the cambered surface that coordinates with the inwall of shell 4 or plane and coordinates with immersed pump 1.The face coordinating with shell 4 and immersed pump 1 is set on voussoir 2, makes to have in position fixing process compared with large contact surface and amass, prevent that stress is concentrated.
Between locking device and end cap 10, be provided with black box, black box comprises sealing gasket 5 and sealing nut 8, and sealing nut 8 is connected with end cap 10 by screw pair, and sealing gasket 5 is pressed on end cap 10 and forms the sealing configuration of locking device and end cap 10 by screw pair.
The utility model is in the specific implementation:
Referring to attached Fig. 1 and 2, when mounted, flange 12 is welded and fixed with shell 4 this fixing device, and immersed pump 1 use end bolt 9 is fixed on end cap 10, after screw rod 3 is connected and fixed with corresponding voussoir 2, then penetrates in end cap 10 and pre-fix with sealing gasket 5, nut 6, locking nut 7.The parts that assemble are penetrated shell 4 from low-temperature storage tank 0 outside, end cap fixing bolt 11 is installed.Rotation lock nut 7 fits tightly voussoir 2 and immersed pump 1 and shell 4, sealing nut 8 is installed and is realized sealing.
When maintenance and replacing immersed pump, without entering in low-temperature storage tank 0, remove the bolt 11 of pump end cap periphery outward at tank body, remove clamping nut 8, locking nut 7 and nut 6, knock screw rod 3, make voussoir 2 and immersed pump 1 and shell 4 occur gap, immersed pump 1 and end cap 10 and connecting pipeline are together pulled down.
Claims (7)
1. the fixing device of a low temperature immersed pump, comprise shell (4), the end cap (10) being connected with shell (4), be arranged in shell (4) and be fixed on the immersed pump (1) on end cap (10), it is characterized in that: between shell (4) and immersed pump (1), be provided with radial positioning mechanism, described radial positioning mechanism comprises that setting is positioned at the voussoir (2) between immersed pump (1) and shell (4), one end is connected the locking device that the other end is connected with end cap (10) with voussoir (2), voussoir (2) coordinates with the radial location that end cap (10) forms immersed pump (1) by locking device.
2. the fixing device of a kind of low temperature immersed pump according to claim 1, is characterized in that: shell (4) free end is fixed with flange (12), and end cap (10) is connected with shell (4) by flange (12).
3. the fixing device of a kind of low temperature immersed pump according to claim 1, is characterized in that: described locking device comprises that one end and voussoir (2) are fixedly connected with the other end through the screw rod (3) of the through hole of end cap (10) and are connected and are pressed on the nut (6) of end cap (10) by screw pair and screw rod (3) free end.
4. the fixing device of a kind of low temperature immersed pump according to claim 3, is characterized in that: in described locking device, also comprise and be connected to screw rod (3) above and coordinate the locking nut (7) that forms anti-loose structure with nut (6).
5. the fixing device of a kind of low temperature immersed pump according to claim 1, is characterized in that: described radial positioning mechanism is at least provided with 3 groups.
6. the fixing device of a kind of low temperature immersed pump according to claim 3, is characterized in that: the cambered surface with tapering or plane that described voussoir (2) is provided with the cambered surface that coordinates with the inwall of shell (4) or plane and coordinates with immersed pump (1).
7. the fixing device of a kind of low temperature immersed pump according to claim 1, it is characterized in that: between locking device and end cap (10), be provided with black box, black box comprises sealing gasket (5) and sealing nut (8), sealing nut (8) is connected with end cap (10) by screw pair, and sealing gasket (5) is pressed on the sealing configuration of end cap (10) formation locking device and end cap (10) by screw pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655001.0U CN203604143U (en) | 2013-10-23 | 2013-10-23 | Fixing device for low-temperature immersed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655001.0U CN203604143U (en) | 2013-10-23 | 2013-10-23 | Fixing device for low-temperature immersed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604143U true CN203604143U (en) | 2014-05-21 |
Family
ID=50716819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320655001.0U Expired - Lifetime CN203604143U (en) | 2013-10-23 | 2013-10-23 | Fixing device for low-temperature immersed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298824A (en) * | 2014-06-27 | 2016-02-03 | 安瑞科(廊坊)能源装备集成有限公司 | Liquefied natural gas (LNG) immersed pump system |
-
2013
- 2013-10-23 CN CN201320655001.0U patent/CN203604143U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298824A (en) * | 2014-06-27 | 2016-02-03 | 安瑞科(廊坊)能源装备集成有限公司 | Liquefied natural gas (LNG) immersed pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |