CN201144884Y - Large-scale electric underwater pump lift prevention apparatus - Google Patents
Large-scale electric underwater pump lift prevention apparatus Download PDFInfo
- Publication number
- CN201144884Y CN201144884Y CNU2007201136733U CN200720113673U CN201144884Y CN 201144884 Y CN201144884 Y CN 201144884Y CN U2007201136733 U CNU2007201136733 U CN U2007201136733U CN 200720113673 U CN200720113673 U CN 200720113673U CN 201144884 Y CN201144884 Y CN 201144884Y
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- Prior art keywords
- scale electric
- underwater pump
- electric underwater
- rigidity
- expansion bend
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Abstract
The utility model discloses a large-sized electric diving pump anti-lift device, comprising a metal well cover (7) detachably connected with a pumping station foundation (19), a large-sized electric diving pump (13), a cable (1), a rigidity pressure lever and an adjusting expansion piece (10), wherein, the bottom of the adjusting expansion piece (10) is connected with the top end of the large-sized electric diving pump (13), the bottom of the rigidity pressure lever is connected with the top of the adjusting expansion piece (10), and the metal well cover (7) is provided with a device which arranges the rigidity pressure lever on the metal well cover (7) and axially presses the rigidity pressure lever downwards. The large-sized electric diving pump anti-lift device avoids damage of a pump station foundation and faults of the electric diving pump because the electric diving pump is lifted and falls so as to generate impact force on the pump station foundation and the electric diving pump, prevents the periphery of the electric pump from generating pace voltage, and provides effective safety control for the personnel safety of an operator in the pump station.
Description
Technical field
The utility model relates to a kind of mounting and positioning device of large-scale electric underwater pump, specifically is the anti-device of lifting of a kind of large-scale electric underwater pump.
Background technique
The general voltage that uses that claims is large diving motor and water pump at 250KW, turnover water pipe bore at 1M and above submersible motor water pump at 10KV, power in the industry, generally is called for short large-scale electric underwater pump.And the large-scale electric underwater pump of prior art also has following deficiency: owing to consider in maintenance, when safeguarding, large-scale electric underwater pump must be sling easily, if adopt bolt that the large-scale electric underwater pump bottom is fixed tightly on the pre-buried base of pit shaft, then can not lift by crane, simultaneously, because the large diving pump is all under water, the people can not remove to dismantle fixing bolt in the bottom time in the well, so the large-scale electric underwater pump of prior art all is to rely on own wt to be pressed on the pre-buried base of pit shaft.In actual use, produce when large-scale electric underwater pump under the situation of counter-rotating or flap valve quick closedown, its motor driving power or water flow impact pressure can make large-scale electric underwater pump produce a lift that makes progress, large-scale electric underwater pump is upwards lifted, thereby when large-scale electric underwater pump falls, pumping plant basis and large-scale electric underwater pump itself are produced very big impact force, thereby seriously damage pumping plant basis and large-scale electric underwater pump equipment itself; Because general 10KV that adopts of the large-scale electric underwater pump of prior art and above high voltage, and the above-mentioned mounting structure and the cable of drawing from Submerged Motor Pumps are prone to by current scour for a long time and scratch and phenomenons such as breakage, are easy to produce step voltage and the personal safety that directly endangers the pumping plant operator; In addition, the form structure of the large-scale electric underwater pump outlet box of prior art is roughly rectangular, and it is disorderly that this produces the current of outlet passage, has objectively reduced the working efficiency of large-scale electric underwater pump.
The model utility content
The technical problems to be solved in the utility model is, overcome the shortcoming of above prior art, provide a kind of and can avoid large-scale electric underwater pump when work itself to be lifted upwards that the back produces impact force to pumping plant basis and large-scale electric underwater pump equipment itself when falling and the large-scale electric underwater pump of damaging pumping plant basis and large-scale electric underwater pump equipment itself prevents lifting device.
Technical solution of the present utility model is, a kind of anti-device of lifting of large-scale electric underwater pump with following structure is provided, comprise the metal well lid, large-scale electric underwater pump and the cable that removably connect with the pumping plant basis, it also comprises the rigidity depression bar, the bottom of described rigidity depression bar is connected with the top of large-scale electric underwater pump, and described metal well covers and the rigidity depression bar is installed in metal well covers and make the rigidity pressure shaft to the device that presses down.
After adopting above structure, the utility model large-scale electric underwater pump is anti-lifts device compared with prior art, has the following advantages:
Because this prevents that lifting device connects together large-scale electric underwater pump and metal well lid, except that the pre-buried base of pit shaft is stressed, electric pump top is delivered to power on the well lid, make it to become two beam structures, greatly improved the axial stability of large-scale electric underwater pump, even power supply generation phase sequence mistake causes that electric pump counter-rotating or flap valve quick closedown cause on the current and gushes, its motor driving power or water flow impact pressure can not make large-scale electric underwater pump upwards be lifted, thereby avoided large-scale electric underwater pump pumping plant basis and large-scale electric underwater pump itself to be produced very big impact force when falling again after lifting fully, and then avoided the generation of serious damage pumping plant basis and the fault of large-scale electric underwater pump equipment own fully.
Simultaneously; because the large-scale electric underwater pump shell directly is connected with grounded screen through rigidity depression bar, metal well lid such as steel well lid; make the Submerged Motor Pumps shell except that cable grounding, have duplicate protection; effectively prevented the electric pump generation of step voltage on every side; for the operation of the motor of hyperbaric diving electric pump provides important safety assurance, for pumping plant operator's personal safety provides effective safety guarantee.
As improvement, the utility model large-scale electric underwater pump prevents that lifting device also comprises the adjusting expansion bend, and the bottom of described rigidity depression bar is connected with the top of regulating expansion bend, and the bottom of described adjusting expansion bend is connected with the top of large-scale electric underwater pump.Like this, even pumping plant civil engineering size has error or hoistway very dark, but, also can guarantee its anti-device reliability of applying and accuracy of lifting because the adjusting of regulating expansion bend is arranged.Generally adopt elastic material such as making such as nitrile butadiene rubber or neoprene owing to regulate expansion bend, think and guarantee good ground connection effect, be equipped with under the situation of regulating expansion bend, be externally connected with the metal ground wire through regulating expansion bend between the top that general two ends at the adjusting expansion bend are rigidity depression bar and large-scale electric underwater pump.
As further improvement, described rigidity terminal box cover the hole that current supply cable and bolt pass, there is the tapped hole that screws in for bolt on the top of described rigidity junction box body, the bottom of rigidity junction box body is connected with the top of large-scale electric underwater pump; But the steel pipe that described rigidity depression bar adopts current supply cable axially to pass; Described adjusting expansion bend is the cydariform hollow annular body that elastic material is made; Each junction surface (seeing specific embodiment for details) of this device is liquid sealing all.More than these improvement, be the dry type mounting structure of cable, after adopting this structure, cable is drawn through steel pipe, because the whole joint of steel pipe and front and back parts all seals, do not contact, avoided cable to be prone to by current scour for a long time fully and scratched and phenomenons such as breakage, further guaranteed safety that the motor of large-scale electric underwater pump moves and pumping plant operator's personal safety with water.
As further improvement, it is the fair water cone of arc line type that described rigidity terminal box adopts profile.Like this, improved the fluidised form of current, reduced hydraulic loss, improved the working efficiency of large-scale electric underwater pump on large-scale electric underwater pump top.
Description of drawings
Fig. 1 is the top of large-scale electric underwater pump of prior art and the sectional structure schematic representation of rigidity terminal box.
Fig. 2 is the anti-sectional structure schematic representation of lifting device of the utility model large-scale electric underwater pump.
Fig. 3 is the local enlarged diagram of A among Fig. 2.
Fig. 4 is the local enlarged diagram of B among Fig. 2.
Fig. 5 is the local enlarged diagram of C among Fig. 2.
Shown in the figure:
1, cable, 2, pressing plate, 3, regulate bolt, 4, seal ring, 5, fitting seat, 6, clamping bolt, 7, metal well lid, 8, sleeve pipe, 9, steel pipe, 10, regulate expansion bend, 11, flange, 12, fair water cone, 13, large-scale electric underwater pump, 14, flange, 15, flange, 16, terminal box is the lid of fair water cone (12), 17, clamping bolt, 18, connecting bolt, 19, the pumping plant pedestal, 20, clamping bolt, 21, clamping bolt, 22, seal ring, 23, the hole, 24, seal ring, 25, the terminal box of prior art, A, B, C, local magnification region.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the top of the large-scale electric underwater pump of prior art is roughly rectangular rigidity terminal box 25, and rigidity terminal box 25 is fixed tightly in the top of large-scale electric underwater pump 13 through clamping bolt.
Shown in Fig. 2～5.
The utility model large-scale electric underwater pump is anti-lifts device, comprises the metal well lid 7, large-scale electric underwater pump 13 and the cable 1 that removably connect with pumping plant basis 19.Described removably connecting mainly is convenient maintenance, maintenance to large-scale electric underwater pump 13, adopts a plurality of connecting bolt 18 removable connections among Fig. 1.The described metal well lid 7 general steel well lids that adopt.Described metal well lid 7 is well lid body itself and reinforced block (unmarked among the figure) formation that tightens together with it, a plurality of bolton (not shown)s of described fastening general employing.Reinforced block also has the effect of regulating block concurrently, with the radial position between the hole 23 of the hole of regulating following fitting seat and metal well lid 7.
The anti-device of lifting of the utility model large-scale electric underwater pump also comprises the rigidity depression bar and regulates expansion bend 10.But the steel pipe 9 that described rigidity depression bar adopts current supply cable axially to pass.The cydariform hollow annular body that described adjusting expansion bend 10 is made for elastic material, described elastic material such as nitrile butadiene rubber, neoprene etc.
The bottom of described adjusting expansion bend 10 is connected with the top of large-scale electric underwater pump 13.Described large-scale electric underwater pump 13 tops refer to be installed in the top of the rigidity terminal box on large-scale electric underwater pump 13 tops.It is the fair water cone 12 of arc line type that described rigidity terminal box adopts profile.The lid 16 that described rigidity terminal box is a fair water cone 12 is the hole that has current supply cable 1 to pass in the middle of the connector cover, a plurality of holes of passing for clamping bolts 21 are arranged on lid 16 circle edge of fair water cone 12, and (hole is unmarked in the drawings, because of belonging to common practise, for for simplicity, unlabelled hole explanation no longer one by one among the figure; And clamping bolt that present embodiment relates to and adjusting bolt comprise nut as can be known according to general knowledge, for for simplicity, also not explanation one by one), described rigidity junction box body is a plurality of tapped holes that have a plurality of clamping bolts 21 of confession to screw on the nose-circle periphery of fair water cone 12 bodies, and the bottom of described adjusting expansion bend 10 is connected with the top of fair water cone 12: a plurality of clamping bolts 21 of pushing down the lid 16 of flange 11 through passing fair water cone 12 of regulating expansion bend 10 outer stoppers are tightened in a plurality of tapped holes that the rigidity junction box body is fair water cone 12 body tops.The rigidity junction box body is that the bottom of fair water cone 12 bodies is connected as connecting with clamping bolt 17 with the top of Submerged Motor Pumps 13 is removable.
The bottom of described rigidity depression bar is connected with the top of regulating expansion bend 10: be connected through a plurality of clamping bolts 20 with the flange 15 of pushing down adjusting expansion bend 10 outer stoppers with the flange 14 that steel pipe 9 is fixed as one.The two ends of regulating expansion bend be rigidity depression bar present embodiment be the flange 14 of steel pipe 9 or flange 15 and large-scale electric underwater pump the top present embodiment for cover 16 or flange 11 between be externally connected with metal ground wire (not shown) through adjusting expansion bend 10.
Have on the described metal well lid 7 and be installed in the rigidity depression bar on the metal well lid 7 and make the rigidity pressure shaft to the device that presses down: passing outside the upper end outer wall of steel pipe 9 in hole 23 of metal well lid 7 has a removable connection as be fixed tightly in the fitting seat 5 on the metal well lid 7 with clamping bolt 6, fitting seat 5 can claim to seal fitting seat again, the fitting seat 5 of present embodiment through a plurality of bolton on above-mentioned reinforced block.The external diameter of steel pipe 9 is less than the internal diameter in the hole 23 of the endoporus of fitting seat 5 and metal well lid 7, and promptly the upper end of steel pipe 9 can endwisely slip in the hole 23 of the endoporus of fitting seat 5 and metal well lid 7.Fixing on steel pipe 9 outer walls of fitting seat 5 tops as being welded with a pressing plate 2, a plurality of adjusting bolts 3 of regulating the axial position between pressing plate 2 and the fitting seat 5 are arranged on the top of fitting seat 5 and the pressing plate 2.Fixing as be welded with a sleeve pipe 8 on steel pipe 9 outer walls, the external diameter of sleeve pipe 8 is less than the internal diameter in the hole 23 of the endoporus of fitting seat 5 and metal well lid 7, and promptly sleeve pipe 8 can endwisely slip in the hole 23 of the endoporus of fitting seat 5 and metal well lid 7.One seal ring 4 is arranged in fitting seat 5 endoporus.Sleeve pipe 8 with seal ring 4 corresponding external peripheral surfaces be polished surface, the outer wall of sleeve pipe 8 had the part that contacts with seal ring 4 when described corresponding finger steel pipe 9 endwisely slipped and drives sleeve pipe 8 and endwisely slip.If the effect of seal ring 4 is to prevent water under the well lid in hole 23 seals in the pumping plant room, sleeve pipe 8 with seal ring 4 corresponding external peripheral surfaces be that the effect of polished surface is to make sealing effect better.
The equal liquid sealing of each junction surface of this device: described cable 1 and rigidity terminal box be fair water cone 12 lid 16 the hole each other, the junction surface on the top of the bottom of fair water cone 12 and large-scale electric underwater pump 13, between the lid 16 of the top of fair water cone 12 and fair water cone 12, the upper-end surface of the lid 16 of fair water cone 12 and the junction surface of the bottom of regulating expansion bend 10 and junction surface and flange 14 endoporus of steel pipe 9 bottoms and the equal liquid sealing of junction surface of steel pipe 9 outer walls of flange 14 bottoms of the top of regulating expansion bend 10 and steel pipe 9 bottoms.Present embodiment adopts following concrete structure: the junction surface on the top of the bottom of described fair water cone 12 and large-scale electric underwater pump 13 has seal ring 22; Between the lid 16 of the top of fair water cone 12 and fair water cone 12 seal ring 24 is arranged; The junction surface of the upper-end surface of the lid 16 of fair water cone 12 and the bottom of regulating expansion bend 10 compresses sealing by the upper-end surface of the lid 16 of the elastic material of regulating expansion bend 10 itself and fair water cone 12; The junction surface of the top of adjusting expansion bend 10 and flange 14 bottoms of steel pipe 9 bottoms then compresses sealing by the bottom end of elastic material and flange 14; Flange 14 endoporus of steel pipe 9 bottoms and the junction surface of steel pipe 9 outer walls then generally adopt the circumference welded seal (soldering point is not shown) of prior art.
The utility model not only limits to above embodiment, and its concrete structure allows various variations, as also can not establish regulate expansion bend and by as described in the bottom of rigidity depression bar directly be connected with the top of large-scale electric underwater pump; If terminal box is contained in the side of large-scale electric underwater pump or does not occupy whole apical position fully, described large-scale electric underwater pump top also can be the top of other component; Described rigidity terminal box also can adopt other profile as taper shape etc.: as described in fair water cone also can not establish top cover, directly be connected and will regulate expansion bend with the top end of fair water cone body; Described rigidity depression bar also can adopt solid hopkinson bar and establish cable protecting tube in addition; Described adjusting expansion bend also can adopt other elastic material, even adopts the structure of spring peripheral hardware flexible gland; Described metal well cover with the rigidity depression bar be installed in metal well cover and make the rigidity pressure shaft to the device that presses down also can be do not establish fitting seat and pressing plate on the steel pipe through regulating the structure that bolt directly is connected with the reinforced block of metal well lid; Can not establish sleeve pipe on the outer wall of steel pipe yet and directly cooperate with the endoporus of fitting seat by outer wall of steel pipe; Described each junction surface also can adopt other conventional sealing configuration, but or the also blow-by of words walked in addition of cable; Or the like.In a word, all various variations of being done in the scope of independent claims all fall in the protection domain of the present utility model.
Claims (10)
1, the anti-device of lifting of a kind of large-scale electric underwater pump, comprise the metal well lid (7), large-scale electric underwater pump (13) and the cable (1) that removably connect with pumping plant basis (19), it is characterized in that: it also comprises the rigidity depression bar, the bottom of described rigidity depression bar is connected with the top of large-scale electric underwater pump (13), has on the described metal well lid (7) the rigidity depression bar is installed in metal well lid (7) goes up and make the rigidity pressure shaft to the device that presses down.
2, the anti-device of lifting of large-scale electric underwater pump according to claim 1, it is characterized in that: it also comprises regulates expansion bend (10), the bottom of described rigidity depression bar is connected with the top of regulating expansion bend (10), and the bottom of described adjusting expansion bend (10) is connected with the top of large-scale electric underwater pump (13).
3, large-scale electric underwater pump according to claim 1 is anti-lifts device, it is characterized in that: the top of described large-scale electric underwater pump (13) refers to be installed in the top of the rigidity terminal box on large-scale electric underwater pump (13) top.
4, the anti-device of lifting of large-scale electric underwater pump according to claim 3, it is characterized in that: the hole that has current supply cable (1) and a plurality of clamping bolt (21) to pass on the lid of described rigidity terminal box (16), there are a plurality of tapped holes that screw in for a plurality of clamping bolts (21) on the top of described rigidity junction box body, the removable connection of top of the bottom of rigidity junction box body and large-scale electric underwater pump (13).
5, large-scale electric underwater pump according to claim 4 is anti-lifts device, and it is characterized in that: it is the fair water cone (12) of arc line type that described rigidity terminal box adopts profile.
6, lift device according to any one described large-scale electric underwater pump in the claim 1～5 is anti-, it is characterized in that: but the steel pipe (9) that described rigidity depression bar adopts current supply cable axially to pass.
7, large-scale electric underwater pump according to claim 6 is anti-lifts device, it is characterized in that: the cydariform hollow annular body that described adjusting expansion bend (10) is made for elastic material; The bottom of described adjusting expansion bend (10) is connected with the top of large-scale electric underwater pump (13), the a plurality of clamping bolts (21) of flange (11) through passing the lid that the rigidity terminal box is a fair water cone (16) that finger pressure is firmly regulated expansion bend (10) outer stopper are tightened in a plurality of tapped holes that the rigidity junction box body is fair water cone (12) body top, and the bottom of described rigidity depression bar is connected with the top of regulating expansion bend (10) and refers to that the flange (14) that is fixed as one with steel pipe (9) is connected through a plurality of clamping bolts (20) with the flange (15) of pushing down adjusting expansion bend (10) outer stopper.
8, the anti-device of lifting of large-scale electric underwater pump according to claim 6, it is characterized in that: have on the described metal well lid (7) the rigidity depression bar is installed in metal well lid (7) goes up and make the rigidity pressure shaft to the device that presses down, steel pipe (9) the upper end outer wall that finger passes the hole (23) of metal well lid (7) has a removable fitting seat (5) that is fixed on the metal well lid (7) outward, the external diameter of steel pipe (9) is less than the internal diameter in the hole (23) of the endoporus of fitting seat 5 and metal well lid (7), be fixed with a pressing plate (2) on steel pipe (9) outer wall of fitting seat (5) top, a plurality of adjusting bolts (3) of the axial position between adjusting pressing plate (2) and fitting seat (5) are arranged on the top of fitting seat (5) and the pressing plate (2).
9, the anti-device of lifting of large-scale electric underwater pump according to claim 8, it is characterized in that: on steel pipe (9) outer wall, be fixed with a sleeve pipe (8), the external diameter of sleeve pipe (8) is less than the internal diameter in the hole (23) of the endoporus of fitting seat (5) and metal well lid (7), in fitting seat (5) endoporus seal ring (4) is arranged, sleeve pipe (8) with the corresponding external peripheral surface of seal ring (4) be polished surface.
10, large-scale electric underwater pump according to claim 7 is anti-lifts device, it is characterized in that: described cable (1) and rigidity terminal box be fair water cone (12) lid (16) the hole each other, the junction surface on the top of the bottom of fair water cone (12) and large-scale electric underwater pump (13), the junction surface of the lid (16) of the top of fair water cone (12) and fair water cone (12), the upper-end surface of the lid (16) of fair water cone (12) and the junction surface of the bottom of regulating expansion bend (10) and junction surface and flange (14) endoporus of steel pipe (9) bottom and the equal liquid sealing of junction surface of steel pipe (9) outer wall of flange (14) bottom of the top of regulating expansion bend (10) and steel pipe (9) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201136733U CN201144884Y (en) | 2007-08-21 | 2007-08-21 | Large-scale electric underwater pump lift prevention apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201136733U CN201144884Y (en) | 2007-08-21 | 2007-08-21 | Large-scale electric underwater pump lift prevention apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144884Y true CN201144884Y (en) | 2008-11-05 |
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ID=40081761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201136733U Expired - Lifetime CN201144884Y (en) | 2007-08-21 | 2007-08-21 | Large-scale electric underwater pump lift prevention apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144884Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031543A1 (en) * | 2010-09-07 | 2012-03-15 | 宁波巨神制泵实业有限公司 | Dry-type cable wire outlet device for a submersible electrical pump |
| CN106968966A (en) * | 2016-01-13 | 2017-07-21 | 上海连成集团苏州股份有限公司 | Submerged axial-flow pumping system |
| CN108204379A (en) * | 2018-01-10 | 2018-06-26 | 江苏绩优机电科技有限公司 | Submerged axial-flow propeller pump cable suspension system |
| CN108222073A (en) * | 2018-01-05 | 2018-06-29 | 浙江三统泵业有限公司 | A kind of closed carrying water Well cover for pump |
-
2007
- 2007-08-21 CN CNU2007201136733U patent/CN201144884Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031543A1 (en) * | 2010-09-07 | 2012-03-15 | 宁波巨神制泵实业有限公司 | Dry-type cable wire outlet device for a submersible electrical pump |
| CN106968966A (en) * | 2016-01-13 | 2017-07-21 | 上海连成集团苏州股份有限公司 | Submerged axial-flow pumping system |
| CN108222073A (en) * | 2018-01-05 | 2018-06-29 | 浙江三统泵业有限公司 | A kind of closed carrying water Well cover for pump |
| CN108222073B (en) * | 2018-01-05 | 2024-05-17 | 浙江三统泵业有限公司 | Enclosed well lid for bearing water pump |
| CN108204379A (en) * | 2018-01-10 | 2018-06-26 | 江苏绩优机电科技有限公司 | Submerged axial-flow propeller pump cable suspension system |
| CN108204379B (en) * | 2018-01-10 | 2019-10-29 | 江苏绩优机电科技有限公司 | Submerged axial-flow propeller pump cable suspension system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |