CN1752453A - Vertical pump for mine - Google Patents
Vertical pump for mine Download PDFInfo
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- CN1752453A CN1752453A CN 200410078876 CN200410078876A CN1752453A CN 1752453 A CN1752453 A CN 1752453A CN 200410078876 CN200410078876 CN 200410078876 CN 200410078876 A CN200410078876 A CN 200410078876A CN 1752453 A CN1752453 A CN 1752453A
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Abstract
The invention is a mine vertical pump being as a self-explosion-proof sand-discharging submersible pump. A safety valve with the one-way discharge hole is disposed in the cavity of the motor chamber or in the mechanical sealed outer oil chamber of the axle hole. It's better for the safety valve to have a sheath. At one end of the safety valve a sleeve with the explosion-proof assembly can be put.
Description
Technical field
The present invention relates to a kind of vertical pump for mine---the anti-sand-discharging submerged pump that self explodes, it is land and dual-purpose under water amphibious type sand-discharging submerged pump, is applicable to carry explosion-proof impurity submersible pump or the explosion-proof sand-discharging submerged pump that contains solid abrasive particles in the liquid.
Background technique
The motor high-seal of submersible pump.When impurities removal matter, its motor is easily because of the overload heating burnout.Motor self blast, take place in existing old-fashioned submersible pump unexpectedly---just as heated pressure kettle oneself blast.In order to prevent this self blast, a kind of safe pressure relief device is disclosed in patent application 99113618.0: set safety relief film 29 on its under shed 17, when motor room's internal pressure raises unusually, can in time break and pressure release, can not cause self explosive accident of motor housing again.Its shortcoming is that the safety relief film can not be reused.Further discover, during submersible pump impurities removal matter, often transship and motor temperature is raise, motor room's cavity pressure is raise.Shut down cooling, next operating temperature raises again, repeatedly repeatedly, can cause the motor water inlet.In case continuous over loading, the electric machine temperature rise of water inlet is rapid, can produce high-pressure water vapor.Water vapour can cause the insulation of winding to descend, and this can impel the heating aggravation again.The overheated meeting of winding disconnects the macromolecular chain of organic material, discharges explosion hazard gases; Winding is overheated also can to make original remaining organic volatile be evaporated, and this just makes has explosion hazard gases again by existing high-temperature high-pressure steam in the motor room.At this moment if winding punctures, produce electric arc, high-temperature high-pressure steam absorbs the energy that Arc Discharge discharges, and absorbs explosion hazard gases and is ignited the energy that discharges by electric arc, and the stack back produces expansive force difficult to the appraisal, up to causing the blast of motor self housing crushability.Originally, this just once usual motor water inlet burnt out the accident of winding, had but caused blast.If blast occurs in the place that personnel work, or the environment of explosion risks such as biogas, gasoline is arranged, its consequence is hardly imaginable.
Summary of the invention
The objective of the invention is: a kind of vertical pump for mine is provided---the anti-sand-discharging submerged pump that self explodes, it is land and dual-purpose under water amphibious type water pump, can overcome above-mentioned shortcoming and defect, strengthen the cooling of heating position, particularly at the beginning of motor room's chamber pressure increases unusually, just can in time drain, timely release pressure, the safety relief parts can be reused continuously, and can prevent effectively that the motor self that causes when winding punctures from exploding, thereby stop to cause the serious accident of biogas, the blast of gasoline environment.
The technical solution adopted in the present invention is: motor room's cavity 25 has the safety valve 31 with unidirectional discharge orifice 4, and perhaps there is the safety valve 31 with unidirectional discharge orifice 4 the outer grease chamber 29 of the mechanical seal 49 of axis hole.Preferably there is sheath 32 safety valve 31 outsides.Any end at safety valve 31 two ends has sleeve pipe 12 or the circular open 33 of laying flame proof assembly 39.Said flame proof assembly 39 can be the column 77 that column 14 or head have projection, said flame proof assembly 39 can be pipe 13 or head have the projection pipe spare 76 within column 14 is housed, said flame proof assembly 39 can also be pipe spare 13 or head have the projection pipe spare 76 within be equipped with head have the projection column 77.Empty chamber 11 in the sleeve pipe 12 can be arranged between safety valve 31 and flame proof assembly 39, chamber, outer space 35 can be arranged, the empty chamber 11 in the cross over pipe 38 can also be arranged.The sleeve pipe 12 or the block body 36 that combine as a whole with main body have pin-and-hole, and column 14, column 77, pipe spare 13 or pipe spare 76 usefulness pins are fixed in the outer sleeve 12 or in the circular open 33.Said pin can be short pin 68 of cotter pin 15 or cylindricality or bolt 16.Said pipe spare 13 can be an independent pipe spare, can also be the mutually nestable combination of a plurality of pipe spares of one in a cover.It can be an independent pipe spare that said head has the pipe spare 76 of projection, can also be the mutually nestable combination of a plurality of pipe spares of one in a cover.
The safety valve 31 of motor room's cavity 25 can be installed on the motor housing 21, can be installed on the machine upper end cap 22, can be installed on the motor lower end cap 23, can be installed on the outer wall of chamber, outer space 35, can be installed on the following shrouding 58 of chamber, outer space 35, can be installed on the motor lower end cap 23 in the chamber, open type outer space 69, also can be installed in the outer grease chamber 29 of vertical perforation cross over pipe 38 on.The safety valve 31 of outer grease chamber 29 can be installed on the outer wall of outer grease chamber 29, also can be installed in outer grease chamber 29 following shrouding 58 on.There is the opening 33 that communicates with motor room's cavity 25 chamber, said outer space 35, and the outer wall of chamber, said open type outer space 69 opens wide, and said unlimited outer wall is to remove two main body covers 30 between the upright dividing plate 67.There is the oil through 51 that communicates with mechanical seal 49 said outer grease chamber 29.
Chamber, outer space 35 can link with outer grease chamber 29 and separate with upright dividing plate 37, chamber, outer space 35 can link with mistake hydroecium 42 and separate with upright dividing plate 44, outer grease chamber 29 can link with mistake hydroecium 42 and separate with upright dividing plate 43, and chamber, open type outer space 69 can link with outer grease chamber 29 and separate with upright dividing plate 67.
Motor room's cavity 25 has with the safety valve 31 of unidirectional discharge orifice 4 simultaneously and is with the safety of barrier film 79 to rush down the big opening 143 of pressure.
With the safety valve 31 of unidirectional discharge orifice 4 can flexible Sealing 2, valve body 3 and elastomer seal clamping sleeve 1.Safety valve 31 can have elastomer seal 8, steel ball 9, valve body 10 and the elastomer seal clamping sleeve 7 of band pit.Safety valve 31 also can flexible flexible pipe 6 and valve body 5, and unidirectional discharge orifice 4 is arranged on valve body 3 or valve body 5 or the valve body 10.
Vertical pump for mine of the present invention---the advantage of the anti-sand-discharging submerged pump that self explodes is simple in structure, easy to manufacture, the safe effect ideal, can the row of drawing water husky, can be in land and two kinds of distinct environment uses under water, be applicable to carry in the liquid to contain the explosion-proof impurity submersible pump or the explosion-proof sand-discharging submerged pump of solid abrasive particles, and submersible pump is maximized.
Description of drawings
Fig. 1-Figure 65 is a vertical pump for mine of the present invention---the anti-sand-discharging submerged pump embodiment schematic representation that self explodes.
Fig. 4 is embodiment's generalized section of first kind of safety valve among the present invention, and Fig. 1, Fig. 2, Fig. 3 are its parts drawings.
Fig. 7 is embodiment's generalized section of second kind of safety valve of the present invention, and Fig. 5, Fig. 6 are its parts drawings.
Figure 12 is embodiment's generalized section of the third safety valve of the present invention, and Fig. 8, Fig. 9, Figure 10, Figure 11 are its parts drawings.
Figure 13 is the schematic representation that safety valve connects with the flame proof assembly to Figure 17 and Figure 22, Figure 23.
To be the flame proof assembly connect schematic representation with the effective cotter pin of cover or bolt or short pin for Figure 18, Figure 19, Figure 20, Figure 21.
Figure 24 is the vertical pump for mine of the embodiment of the invention to Figure 65---the anti-sand-discharging submerged pump structural representation that self explodes.
Figure 24, Figure 25, Figure 26 one picture group are the vertical pump for mine of the embodiment of the invention---anti-first kind of structural representation of sand-discharging submerged pump that self explodes.Wherein Figure 24 is the F-F sectional view of Figure 25, and Figure 25 is the D-D sectional drawing of Figure 24, and Figure 26 is the E-E sectional drawing of Figure 24.
Figure 27, Figure 28 one picture group are the vertical pump for mine of the embodiment of the invention---anti-second kind of structural representation of sand-discharging submerged pump that self explodes.Wherein Figure 27 is the I-I sectional view of Figure 28, and Figure 28 is the H-H sectional drawing of Figure 27.
Figure 29, Figure 30 one picture group are the vertical pump for mine of the embodiment of the invention---the third structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 29 is the K-K sectional view of Figure 30, and Figure 30 is the J-J sectional drawing of Figure 29.
Figure 31, Figure 32 one picture group are the vertical pump for mine of the embodiment of the invention---anti-the 4th kind of structural representation of sand-discharging submerged pump that self explodes.Wherein Figure 31 is the M-M sectional view of Figure 32, and Figure 32 is the L-L sectional view of Figure 31.
Figure 33, Figure 34, Figure 35 one picture group are the vertical pump for mine of the embodiment of the invention---the 5th kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 33 is the O-O sectional view of Figure 35, and Figure 34 is the P-P sectional view of Figure 35, and Figure 35 is the N-N sectional view of Figure 34.
Figure 36, Figure 37, Figure 38 one picture group are the vertical pump for mine of the embodiment of the invention---the 6th kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 36 is the S-S sectional view of Figure 38, and Figure 37 is the R-R sectional view of Figure 38, and Figure 38 is the Q-Q sectional view of Figure 37.
Figure 39, Figure 40 are that the flame proof assembly is installed enlarged diagram.
Figure 41, Figure 42 are respectively the part schematic representation that the head of pipe spare and column has projection.
Figure 43, Figure 44, Figure 45 one picture group are the vertical pump for mine of the embodiment of the invention---the 7th kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 43 is the V-V sectional view of Figure 44, and Figure 44 is the T-T sectional drawing of Figure 43, and Figure 45 is the U-U sectional drawing of Figure 43.
Figure 46, Figure 47 one picture group are the vertical pump for mine of the embodiment of the invention---the 8th kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 46 is the Y-Y sectional view of Figure 47, and Figure 47 is the X-X sectional drawing of Figure 46.
Figure 48, Figure 53 one picture group are the vertical pump for mine of the embodiment of the invention---the 9th kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 48 is the b-b sectional view of Figure 53, and Figure 53 is the Z-Z sectional drawing of Figure 48.Figure 52 is the partial enlarged drawing of the I among Figure 48.Figure 49, Figure 50, Figure 51 one picture group are three views after block body 36 is moved out of, and wherein Figure 49 is the a-a sectional view of Figure 51, and Figure 50 is the left view of Figure 49.
Figure 54, Figure 56 one picture group are the vertical pump for mine of the embodiment of the invention---the tenth kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 54 is the d-d sectional view of Figure 56, and Figure 56 is the c-c sectional view of Figure 54.Figure 55 is the partial enlarged drawing of the II among Figure 54.
Figure 57, Figure 58, Figure 60 one picture group are the vertical pump for mine of the embodiment of the invention---the 11 kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 57 is the f-f sectional view of Figure 60, and Figure 58 is the g-g sectional view of Figure 60, and Figure 60 is the e-e sectional view of Figure 58.Figure 59 is the partial enlarged drawing of the I among Figure 58.
Figure 61, Figure 62, Figure 64 one picture group are the vertical pump for mine of the embodiment of the invention---the 12 kind of structural representation of the anti-sand-discharging submerged pump that self explodes.Wherein Figure 61 is the j-j sectional view of Figure 64, and Figure 62 is the i-i sectional view of Figure 64, and Figure 64 is the h-h sectional view of Figure 62.Figure 63 is the partial enlarged drawing of the I among Figure 62.
Figure 65 is the vertical pump for mine of the embodiment of the invention---the 13 kind of structural representation of the anti-sand-discharging submerged pump that self explodes.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Among the embodiment shown in Figure 24, Figure 25, Figure 26 one picture group, vertical pump for mine---the anti-sand-discharging submerged pump that self explodes has the pump housing 27, pump shaft 26, impeller 28 and motor, its motor has casing 21, upper end cap 22, lower end cap 23 and rotor 24, casing 21 and upper end cap 22, lower end cap 23 surround motor room's cavity 25 of sealing jointly, and motor axis hole has mechanical seal 49.Motor room's cavity 25 has the safety valve 31 with unidirectional discharge orifice 4.There is the safety valve 31 with unidirectional discharge orifice 4 the outer grease chamber 29 of the mechanical seal 49 of motor axis hole.All there is sheath 32 these two safety valve 31 outsides.
Among Figure 13, Figure 14, Figure 15, Figure 22, Figure 23, in the lower end of safety valve 31, promptly the end at motor room's cavity that may produce high pressure has the sleeve pipe 12 of laying the flame proof assembly.In Figure 16, Figure 17,, promptly the sleeve pipe 12 of laying the flame proof assembly is arranged at an end that rushes down pressure in the upper end of safety valve 31.
Figure 39,40,43,44,45,46,48,52,54,55,58,59,62,63, the 65th, the generalized section of laying flame proof assembly 39.
Figure 18, the 19th, Figure 13,14,15,16,17 A-A sectional drawing.Figure 18 is linked together column 14, pipe spare 13 with cotter pin with sleeve pipe 12.Figure 19 is linked together column 14, pipe spare 13 with bolt with sleeve pipe 12.Figure 20 is the B-B sectional drawing of Figure 22 or Figure 23.Figure 21 is the C-C sectional drawing of Figure 23.Two cotter pins 15 of sleeve pipe 12 usefulness among Figure 22 reach fixedly purpose near the end of column 14, pipe spare 13.The short pin 68 of cotter pin 15 of sleeve pipe 12 usefulness among Figure 23 and one penetrates the pin-and-hole at the two ends of column 14 respectively, so as to fixing pipe spare 13.
Among Figure 39,41,42, said flame proof assembly 39 be head have the projection pipe spare 76 in be equipped with head have the projection column 77.Here it can be the bigger round platform of diameter that said head has projection, also can be local projection on the outer surface, and purpose is to prevent that pipe spare or column from falling in the hole and can't take out.
Among Figure 40, said flame proof assembly 39 is that column 14 is housed in the pipe 13.
Among Figure 13,14,15,16,17,22,23,46,48, free chamber 11 is arranged between safety valve 31 and flame proof assembly 39.
Among Figure 29, Figure 48, the outer grease chamber 29 of annular is arranged.In the cross over pipe 38 of the outer grease chamber 29 of perforation annular free chamber 11 is arranged.
Among Figure 46, the sleeve pipe 12 that combines as a whole with main body is arranged.
Among Figure 39,40,46,48,52,54,55,58,59,62,63,65, the block body 36 that can be used to penetrate cotter pin 15 is arranged.
Figure 49,50,51 1 picture groups are three views of block body 36.When block body 36 combines as a whole with main body, but the space permanent opening pin of its underpart.
In Figure 54,55 1 picture groups, column 14, pipe spare 13 usefulness pins are fixed in the circular open 33.
Among the embodiment shown in Figure 24,25,26 1 picture groups, the safety valve 31 of motor room's cavity 25 is installed on the motor housing 21.
Among Figure 27, safety valve 31 is installed on the motor lower end cap 23 in the chamber, open type outer space 69.Chamber, said open type outer space 69 is spaces 69 of removing two main body covers 30 between the upright dividing plate 67 shown in Figure 28.
Among the embodiment shown in Figure 33, Figure 34, Figure 35 one picture group, two safety valves 31 are installed on the outer wall of chamber, outer space 35 respectively and on the outer wall of outer grease chamber 29.
Among two embodiments shown in Figure 36, Figure 37, Figure 38 and Figure 61, these two groups of views of Figure 62, Figure 64, respectively there are two safety valves 31 to be installed on the outer wall of chamber, outer space 35 respectively and on the outer wall of outer grease chamber 29.Between the upper cover plate 48 of chamber, outer space 35 and the upper cover plate 47 of outer grease chamber 29 and the motor lower end cap 23 UNICOM chamber 55 is arranged, heat diffusion area is big, and radiating effect is better.
Figure 43,44,45 1 picture groups are the schematic representation that install flame proof assembly 39 on Figure 24,25,26 is the basis of a picture group additional.Flame proof assembly 39 connects with sleeve pipe 12 usefulness cotter pins 15 among Figure 44, and an end that may produce motor room's cavity of high pressure at safety valve 31 has the sleeve pipe 12 of laying the flame proof assembly.Flame proof assembly 39 among Figure 45 connects with sleeve pipe 12 usefulness bolts 16, and an end that rushes down pressure at safety valve 31 has the sleeve pipe 12 of laying the flame proof assembly.
Figure 46, Figure 47 one picture group are the schematic representation that installs flame proof assembly 39 on the basis of the embodiment in Figure 27, Figure 28 one picture group additional.
Figure 32,56 chamber, outer space 35 link with outer grease chamber 29 and with upright dividing plate 37 separations.
Figure 35,38,60,64 chamber, outer space 35 and cross that hydroecium 42 links and separate with upright dividing plate 44, outer grease chamber 29 with hydroecium 42 link and with upright dividing plate 43 separations.
Chamber, open type outer space 69 and the outer grease chamber 29 of Figure 28, Figure 47 links and separates with upright dividing plate 67.
Motor room's cavity 25 of Figure 65 has in chamber, outer space 35 to rush down with the safety of the safety valve 31 of unidirectional discharge orifice 4 and band barrier film 79 simultaneously presses big opening 143, can be when the safety valve pressure release be slow quick pressure releasing, motor safety requires should adopt this scheme when higher.
The part of safety valve 31 with unidirectional discharge orifice 4 shown in Figure 4 comprises elastomer seal shown in Figure 22, valve body 3 shown in Figure 3 and elastomer seal clamping sleeve 1 shown in Figure 1.The part of safety valve 31 shown in Figure 12 comprises the elastomer seal 8 of band pit shown in Figure 9, steel ball 9 shown in Figure 10, valve body 10 shown in Figure 11 and elastomer seal clamping sleeve 7 shown in Figure 8.The part of safety valve 31 shown in Figure 7 comprises elastic hose shown in Figure 66 and valve body 5 shown in Figure 5.Unidirectional discharge orifice 4 is all arranged on valve body 3 or valve body 5 or the valve body 10.The material of said elastomer seal 2,8 and elastic hose 6 can be rubber or nylon.
Claims (9)
1. vertical pump for mine---the sand-discharging submerged pump of anti-self blast, it comprises the pump housing (27), pump shaft (26), impeller (28) and motor, its motor has casing (21), upper end cap (22), lower end cap (23) and rotor (24), casing (21) and upper end cap (22), lower end cap (23) surrounds motor room's cavity (25) of sealing jointly, motor axis hole has mechanical seal (49), it is characterized in that motor room's cavity (25) has the safety valve (31) with unidirectional discharge orifice (4), there is the safety valve (31) with unidirectional discharge orifice (4) the outer grease chamber (29) of the perhaps mechanical seal of axis hole (49).
2. vertical pump for mine as claimed in claim 1---the anti-sand-discharging submerged pump that self explodes is characterized in that there is sheath (32) safety valve (31) outside.
3. vertical pump for mine as claimed in claim 1---the anti-sand-discharging submerged pump that self explodes, it is characterized in that any end at safety valve (31) two ends has sleeve pipe (12) or the circular open (33) of laying flame proof assembly (39): said flame proof assembly (39) is the column (77) that column (14) or head have projection, perhaps said flame proof assembly (39) be pipe spare (13) or head have the projection pipe spare (76) in column (14) is housed, perhaps said flame proof assembly (39) be pipe spare (13) or head have the projection pipe spare (76) in be equipped with head have the projection column (77).
4. vertical pump for mine as claimed in claim 3---the sand-discharging submerged pump of anti-self blast is characterized in that free chamber (11) is arranged or chamber, outer space (35) is arranged or empty chamber (11) in the cross over pipe (38) is arranged between safety valve (31) and flame proof assembly (39).
5. vertical pump for mine as claimed in claim 3---the anti-sand-discharging submerged pump that self explodes, it is characterized in that the sleeve pipe (12) or the block body (36) that combine as a whole with main body have pin-and-hole, column (14), column (77), pipe spare (13) and pipe spare (76) be fixed in the sleeve pipe (12) with pin or circular open (33) in: said pin is cotter pin (15) or the short pin of cylindricality (68) or bolt (16); Said pipe spare (13) is an independent pipe spare or the mutually nestable combination of a plurality of pipe spares of overlapping; It is an independent pipe spare or the mutually nestable combination of a plurality of pipe spares of overlapping that said head has the pipe spare (76) of projection.
6. vertical pump for mine as claimed in claim 1---the anti-sand-discharging submerged pump that self explodes, the safety valve (31) that it is characterized in that motor room's cavity (25) is installed on the motor housing (21), or be installed on the motor upper cover (22), or be installed on the motor lower end cap (23), or be installed on the outer wall of chamber, outer space (35), or be installed on the following shrouding (58) of chamber, outer space (35), or be installed on the interior motor lower end cap (23) in chamber, open type outer space (69), or be installed in the outer grease chamber (29) of vertical perforation cross over pipe (38) on: the safety valve (31) of outer grease chamber (29) is installed on the outer wall of outer grease chamber (29), or is installed on the following shrouding (58) of outer grease chamber (29); There is the opening (33) that communicates with motor room's cavity (25) chamber, said outer space (35), and the outer wall of chamber, said open type outer space (69) opens wide, and said unlimited outer wall is the main body cover (30) that removes between two upright dividing plates (67).
7. vertical pump for mine as claimed in claim 6---the anti-sand-discharging submerged pump that self explodes, it is characterized in that chamber, outer space (35) and outer grease chamber (29) link and separate with upright dividing plate (37), or chamber, outer space (35) with cross hydroecium (42) and link and separate with upright dividing plate (44), or outer grease chamber (29) with cross that hydroecium (42) links and with upright dividing plate (43) separation, or chamber, open type outer space (69) and outer grease chamber (29) link and separate with upright dividing plate (67).
8. vertical pump for mine as claimed in claim 1---the sand-discharging submerged pump of anti-self blast, it is characterized in that motor room's cavity (25) has simultaneously with the safety valve (31) of unidirectional discharge orifice (4) and the safety of band barrier film (79) rushes down pressure big opening (143).
9. as the described vertical pump for mine of claim 1 to 8---the anti-sand-discharging submerged pump that self explodes, it is characterized in that the flexible Sealing of safety valve (31) (2), valve body (3) and elastomer seal clamping sleeve (1) with unidirectional discharge orifice (4), perhaps safety valve (31) has elastomer seal (8), steel ball (9), valve body (10) and the elastomer seal clamping sleeve (7) of band pit, perhaps flexible flexible pipe of safety valve (31) (6) and valve body (5) have unidirectional discharge orifice (4) on valve body (3) or valve body (5) or the valve body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100788764A CN100383401C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100788764A CN100383401C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752453A true CN1752453A (en) | 2006-03-29 |
| CN100383401C CN100383401C (en) | 2008-04-23 |
Family
ID=36679424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100788764A Active CN100383401C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100383401C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852818A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852819A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852816A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Amphibious hard-alloy mining vertical pump capable of running in idling or being in series-connection |
| CN105927551A (en) * | 2016-06-30 | 2016-09-07 | 新界泵业集团股份有限公司 | Vortex pump improving impeller assembly gap deviation |
| CN113565957A (en) * | 2021-05-19 | 2021-10-29 | 上海工程技术大学 | Dynamic and static sealing and pressure balancing combined device of deep well micro high-pressure liquid station system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3344765A1 (en) * | 1983-12-10 | 1985-06-13 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Submerged pump |
| CN2235517Y (en) * | 1995-12-28 | 1996-09-18 | 王庆武 | Sand-discharging submersible pump |
| CN2359500Y (en) * | 1999-03-11 | 2000-01-19 | 王庆武 | Sand discharging submersible pump |
| CN2738000Y (en) * | 2004-09-25 | 2005-11-02 | 王庆武 | Vertical pump-anti-self explosive sand-removing submersible pump |
-
2004
- 2004-09-25 CN CNB2004100788764A patent/CN100383401C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852818A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852819A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852816A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Amphibious hard-alloy mining vertical pump capable of running in idling or being in series-connection |
| CN102852816B (en) * | 2011-06-27 | 2015-04-15 | 王喜冬 | Amphibious hard-alloy mining vertical pump capable of running in idling or being in series-connection |
| CN102852818B (en) * | 2011-06-27 | 2015-04-15 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852819B (en) * | 2011-06-27 | 2016-02-24 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| CN105927551A (en) * | 2016-06-30 | 2016-09-07 | 新界泵业集团股份有限公司 | Vortex pump improving impeller assembly gap deviation |
| CN113565957A (en) * | 2021-05-19 | 2021-10-29 | 上海工程技术大学 | Dynamic and static sealing and pressure balancing combined device of deep well micro high-pressure liquid station system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100383401C (en) | 2008-04-23 |
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Assignee: Shanghai Qing Qing desilting Pump Co., Ltd. Assignor: Wang Qingwu Contract record no.: 2010310000173 Denomination of invention: Amphibious hard-alloy mining vertical pump capable of running in idling or being in series-connection Granted publication date: 20080423 License type: Exclusive License Open date: 20060329 Record date: 20100915 |