CN1752452A - Vertical pump for mine - Google Patents
Vertical pump for mine Download PDFInfo
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- CN1752452A CN1752452A CN 200410078879 CN200410078879A CN1752452A CN 1752452 A CN1752452 A CN 1752452A CN 200410078879 CN200410078879 CN 200410078879 CN 200410078879 A CN200410078879 A CN 200410078879A CN 1752452 A CN1752452 A CN 1752452A
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- cover plate
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Abstract
The invention is a mine vertical pump being as light welded sand-discharging submersible pump. In the invention there are several diaphragms in the space between the pump casing and the fluid-guiding plate. In the space divided by the diaphragms there is a channel grid with the channel opening on the casing end cover plate and a stifling grid enclosed by the casing end cover plate.
Description
Technical field
The present invention relates to a kind of vertical pump for mine---the concave weld husky submersible pump that runs in, it is land and dual-purpose under water amphibious type water pump, is applicable to carry impurity submersible pump or the sand-discharging submerged pump that contains solid abrasive particles in the liquid.
Background technique
At present, do not retrieve the multistage sand-discharging submerged pump of low specific speed of low-flow high-lift as yet.The technical barrier of this multistage sand-discharging submerged pump is if transformed with single-stage slag stock pump, complex structure then, and the axial force balance difficulty, axial leakage is difficult to control.It is huge to add complete machine, uses inconvenience etc., therefore, comparatively ideal type is not arranged so far.
Summary of the invention
The objective of the invention is: for mining provides a kind of land and dual-purpose amphibious type vertical pump for mine under water---the concave weld husky submersible pump that runs in, it can be on the bank or running on the bank, and simple in structure, axial force is cancelled out each other, and axial leakage is let nature take its course.Volume is little, and is in light weight, easy to use, can overcome above-mentioned shortcoming and defect.
The technical solution adopted in the present invention is: several dividing plates 137 are arranged in the space between the shell of the pump housing 27 and the guide plate 136.Dividing plate 137 is separated a plurality of Kong Gezhong of the space gained between shell and the guide plate 136, and the port hole lattice that have access portal on the cover plate of outer casing end are arranged, and also has by the close lid hole lattice 135 of outer casing end covering palte seal or entity close lid hole lattice 145.Said shell is shell 131,132,133,134 or the shell of two stage pump 131,132 or the shell of single-stage pump 131 of multistage pump.The access portal of being opened on the said outer casing end cover plate respectively with the port hole lattice 91,92,93,94,95 or 96 UNICOMs of multistage pump, or respectively with port hole lattice 91,92 UNICOMs of two stage pump, or with port hole lattice 91 UNICOMs of single-stage pump.Said cover plate is cover plate 103,104,105,106,107,108,109,100 or the cover plate of two stage pump 107,108,109,100 or the cover plate of single-stage pump 109,100 of multistage pump.The Kong Gewei entity that said entity close lid hole lattice 145 is covering palte seals.Guide plates 136 in the shell 131 or 132 or 134 disconnect at pump housing drain outlet place, and to center curvature, the other end is to main body cover 131,132 or 134 crooked and connect with it at an end of the guide plate that is disconnected 136 of gap 141.Perhaps the guide plates 136 in the shell 133 disconnect at suction chamber 93 or at suction chamber 94 places, and the port hole lattice 92 and the suction of gap entered the room and 93 communicated, and the port hole lattice 95 and the suction of gap entered the room and 94 communicated.
Pump housing connecting section 111 or 116 has the underpressure chamber 87 of a band decompression floss hole 81 at least.The underpressure chamber that also has a plurality of band decompression floss holes above underpressure chamber 87, wherein uppermost one is the underpressure chamber 86 of last band decompression floss hole 80.The water retaining disk 85 that has the annulus of pin 99 or band opening to connect at the top of the underpressure chamber of various bands decompression floss holes.Pump housing connecting section 111 or 116 shell 79 have the dewatering outlet 121 of the fluid that the axis hole of discharging underpressure chamber cover plate leaks, and perhaps shell 79 has the offlet 138 of band dewatering outlet 121.
The suction chamber 88 that band suction port 98 is arranged on the lower cover plate 102 of the pump housing connecting section 111 of multistage pump, the port hole lattice 91 that vertical perforation pump housing section 112,113,114,115 is arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places, or the port hole lattice 91 of vertical perforation pump housing section 112,113,119 are arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places.It can also be the suction chamber 88 that band suction port 98 is arranged on the lower cover plate 102 of pump housing connecting section 111 of two stage pump, the port hole lattice 91 that vertical perforation pump housing section 114,115 is arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places, or the port hole lattice 91 of vertical perforation pump housing section 119 are arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places.Obviously, lower cover plate 102 has the opening that communicates with port hole lattice 91 and port hole lattice 96.
The water absorbing section 113 that multistage pump has suction chamber 93 and suction chamber 94 to combine as a whole back-to-back.The two ends up and down of water absorbing section 113 have cover plate 105 and cover plate 106 respectively.Cover plate 105 has the opening that communicates with port hole lattice 91 and port hole lattice 95.Cover plate 106 has the opening that communicates with port hole lattice 91 and port hole lattice 92.Said is that the position of the suction eye of two suction chambers is laterally zygomorphic back-to-back.
The draining section 112 that multistage pump has impeller 122 and impeller 124 to install back-to-back, perhaps multistage pump has the draining section 119 that impeller 121 and impeller 123 are installed back-to-back.The two ends up and down of draining section 112 have cover plate 103 and 104 respectively.The two ends up and down of draining section 119 have cover plate 107 and 142 respectively.Cover plate 103 has the opening that communicates with port hole lattice 91 and port hole lattice 96.Cover plate 104 has the opening that communicates with port hole lattice 91 and port hole lattice 95.Cover plate 107 has the opening that communicates with port hole lattice 91 and port hole lattice 92.Said is that the position of the suction port of two impellers is laterally zygomorphic back-to-back.
The locking nut of impeller 28 has nut sheath 90.
The run in advantage of husky submersible pump of vertical pump for mine of the present invention---concave weld is simple in structure, easy to manufacture, satisfactory for result, can the row of drawing water husky, can stand 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 51 is a vertical pump for mine of the present invention---run in eight kinds of embodiment's schematic representation of husky submersible pump of concave weld.
Fig. 1 is first kind of embodiment's schematic representation of the present invention.
Fig. 2 is second kind of embodiment's schematic representation of the present invention.
Fig. 3 is the third embodiment's schematic representation of the present invention.
Fig. 4, Fig. 5 one picture group are the 4th kind of embodiment's schematic representation of the present invention together with Fig. 8-Figure 19 one picture group.Wherein Fig. 4 is the H-H sectional view of Figure 10.Fig. 5 is the h-h sectional view of Figure 10.
A-a among Fig. 5 is the partial sectional view of the a-a of Figure 10.The plan view of the split cover plate that gets off of imagination when Fig. 8,12,13,17, the 18th, the pump housing have single water out.Fig. 9,10,11,14,15,16,19 is respectively J-J, I-I, K-K, L-L, N-N, M-M, the R-R sectional view of Fig. 4.
Fig. 4, Fig. 5 one picture group are the 5th kind of embodiment's schematic representation of the present invention together with Figure 20-Figure 31 one picture group.Wherein Fig. 4 is the H-H sectional view of Figure 22.Fig. 5 is the h-h sectional view of Figure 22.
A-a among Fig. 5 is the partial sectional view of the a-a of Figure 22.The plan view of the split cover plate that gets off of imagination when Figure 20,24,25,29, the 30th, the pump housing have double water out.Figure 21,22,23,26,27,28,31 is respectively J-J, I-I, K-K, L-L, N-N, M-M, the R-R sectional view of Fig. 4.
Fig. 6 is the representative cross-section profile schematic representation that the pump housing has single water out.Fig. 7 is the representative cross-section profile schematic representation that the pump housing has double water out.
Figure 32, Figure 33 one picture group are the 6th kind of embodiment's schematic representation of the present invention together with Figure 34-Figure 39 one picture group.Wherein Figure 32 is the G-G sectional view of Figure 35.Figure 33 is the g-g sectional view of Figure 35.The plan view of the split cover plate that gets off of imagination when Figure 34,36, the 38th, the pump housing have single water out.Figure 35,37,39 is respectively F-F, G-G, the E-E sectional view of Figure 32.
Figure 32, Figure 33 one picture group are the 7th kind of embodiment's schematic representation of the present invention together with Figure 40-Figure 45 one picture group.Wherein Figure 32 is the H-H sectional view of Figure 41.Figure 33 is the g-g sectional view of Figure 41.The plan view of the split cover plate that gets off of imagination when Figure 40,42, the 44th, the pump housing have double water out.Figure 41,43,45 is respectively F-F, G-G, the E-E sectional view of Figure 32.
Figure 46-Figure 51 one picture group is the 8th kind of embodiment's schematic representation of the present invention.Wherein Figure 46 is the C-C sectional view of Figure 48.Figure 47 is the D-D sectional view of Figure 48.Figure 51 is the plan view of the pump housing split cover plate that gets off of imagination when double water out is arranged.Figure 48 and Figure 49 are respectively A-A, the B-B sectional views of Figure 46.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Among three embodiments shown in Fig. 4 Fig. 5, Figure 32 Figure 33, Figure 46 Figure 47 three picture groups, vertical pump for mine---the concave weld husky submersible pump that runs in 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.Motor axis hole has mechanical seal 49.Among Fig. 6, the pump housing has single single water out, in the space between the guide plate 136 in the circular housing of the pump housing 27 and the shell 5 dividing plates 137 is arranged.Among Fig. 7, the pump housing has two double water outs, in the space between the guide plate 136 in the circular housing of the pump housing 27 and the shell 10 dividing plates 137 is arranged.The shell that dividing plate 137 is separated and a plurality of Kong Gezhong of the space gained between the guide plate 136 have the port hole lattice that have access portal on the cover plate of outer casing end, also have by the close lid hole lattice 135 of outer casing end covering palte seal or entity close lid hole lattice 145.Here the circular housing 131,132,133,134 that said shell can be the multistage pump among Fig. 4 can be the circular housing 131,132 of the two stage pump among Figure 32, can also be the circular housing 131 of the single-stage pump among Figure 47.Here the access portal of being opened on the cover plate of said outer casing end can be respectively with Fig. 4 in the port hole lattice 91,92,93,94,95 or 96 UNICOMs of multistage pump, can be respectively with Figure 32 in port hole lattice 91 or 92 UNICOMs, can also with port hole lattice 91 UNICOMs of single-stage pump among Figure 47.Here the cover plate 103,104,105,106,107,108,109,100 that said cover plate can be the multistage pump among Fig. 5, can be the cover plate 107,108,109,100 of the two stage pump among Figure 33, can also be the cover plate 109,100 of the single-stage pump among Figure 47.Guide plate 136 in the shell of saying previously 131 or 132 or 134 disconnects at pump housing drain outlet place.Among Fig. 6, Fig. 7, at an end of the guide plate that is disconnected 136 of gap 141 to center curvature, bend to impeller certain interval arranged till.The other end is to main body cover 131,132 or 134 crooked and connect with it.Among Figure 14, Figure 26, the guide plate 136 in the shell 133 disconnects at suction chamber 93 places, and the port hole lattice 92 of gap communicate with suction chamber 93.Among Figure 16, Figure 28, the guide plate 126 in the shell 133 disconnects at suction chamber 94 places, and the port hole lattice 95 of gap communicate with suction chamber 94.Remove top said port hole especially, all be can be described as close lid hole lattice 135 by cover plate blind bore lattice.Axial length between the guide plate in circular housing and the shell 136 hour, when perhaps the spacing between two dividing plates 137 was less even overlapping, close lid hole lattice 135 can be an entity.So the hole lattice that said entity close lid hole lattice 145 is exactly a covering palte seal are entities.
Pump housing connecting section 111 in Fig. 4 Fig. 5 and Figure 32 Figure 33 two picture groups, or the pump housing connecting section 116 in Figure 46 Figure 47 one picture group has the underpressure chamber 87 of a band decompression floss hole 81 at least.The underpressure chamber that a plurality of band decompression floss holes can also be arranged above underpressure chamber 87.For example, also have underpressure chamber 117 of band decompression floss hole 118 or the like, wherein uppermost one is the underpressure chamber 86 of last band decompression floss hole 80.Among Fig. 5, Figure 33, Figure 46, the water retaining disk 85 that has an available 3-6 pin 99 to connect at the top of the underpressure chamber 86 of being with decompression floss hole 80, annulus that also can useful band opening connects water retaining disk 85, so that using later stage axis hole gap to be ground when big, stops high-pressure water shot in the pump housing to motor.Pump housing connecting section 111 or 116 shell 79 can have the dewatering outlet 121 of the fluid that the axis hole of the cover plate 84 of last underpressure chamber 86 of discharging as shown in figure 33 leaks.Shell 79 can also be outer just like Fig. 5, the opening that is connected in dewatering outlet 121 shown in Figure 46 the offlet 138 of the fluid that leaks of the axis hole of cover plate 84 of last underpressure chamber 86 of discharging.
The suction chamber 88 that band suction eye 98 is arranged on the lower cover plate 102 of the pump housing connecting section 111 of the multistage pump shown in Fig. 4 Fig. 5 one picture group, just like the port hole lattice 91 of the vertical perforation pump housing section 112,113,114,115 shown in Fig. 4, Fig. 5 one picture group, or the port hole lattice 91 of vertical perforation pump housing section 112,113,119 are as shown in Figure 2 arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places between the pump housing drain outlet at the suction chamber 88 of multistage pump and first order impeller 28 places.Can also be the suction chamber 88 that band suction eye 98 is arranged on the lower cover plate 102 of pump housing connecting section 111 of the two stage pump shown in Figure 32, Figure 33 one picture group, the port hole lattice 91 of vertical perforation pump housing section 114,115 are arranged between the pump housing drain outlet at suction chamber 88 and first order impeller 28 places.Can also with pump housing section 119 shown in Figure 2 and following part thereof with obtain a new two stage pump after shown in Figure 33 pump housing connecting section 111 splices mutually, the port hole lattice 91 of vertical perforation pump housing section 119 are arranged between the pump housing drain outlet at its suction chamber 88 and first order impeller 28 places.Obviously, the lower cover plate 102 of said pump housing connecting section 111 has the opening that communicates with port hole lattice 91 and port hole lattice 96 more than.The pressure that Fig. 4, suction chamber 88 shown in Figure 32 have only first order impeller 28 to produce by the axis hole clearance seal, obtains decompression in first underpressure chamber 87.The pressure that single-stage impeller 28 shown in Figure 46 produces by the impeller port ring clearance seal, obtains decompression in first underpressure chamber 87.So the wearing and tearing of the axis hole of the cover plate 83 of first underpressure chamber 87 can be not outstanding especially; only can be suitable with the gap sealed operating conditions of the axis hole of all the other each pump housing segmentations; therefore; in same service cycle, other axis hole clearance conditions of the situation in the axis hole gap of the cover plate 83 of first underpressure chamber 87 and the pump housing is synchronous, mixes a plurality of underpressure chamber again; last underpressure chamber axis hole leakage rate can obviously reduce; even do not have leakage, and to realize in the empty chamber 50 anhydrously, this is extremely important to the protection motor.
The water absorbing section 113 that multistage pump shown in Fig. 4, Fig. 5 one picture group has suction chamber 93 and suction chamber 94 to combine as a whole back-to-back.There are cover plate 105 and cover plate 106 in the two ends up and down of water absorbing section 113.Cover plate 105 has the opening that communicates with port hole lattice 91 and port hole lattice 95.Cover plate 106 has the opening that communicates with port hole lattice 91 and port hole lattice 92.Said is that the position of the suction eye separately of two suction chambers is laterally zygomorphic back-to-back.
The draining section 112 that Fig. 2 and multistage pump shown in Figure 4 have impeller 122 and impeller 124 to install back-to-back, the draining section 119 that also has impeller shown in Figure 2 28 and impeller 123 to install back-to-back.There are cover plate 103 and 104 in the two ends up and down of draining section 112.There are cover plate 107 and 142 in the two ends up and down of draining section 119.Cover plate 103 has the opening that communicates with port hole lattice 91 and port hole lattice 96.Cover plate 104 has the opening that communicates with port hole lattice 91 and port hole lattice 95.Cover plate 107 has the opening that communicates with port hole lattice 91 and port hole lattice 92.Said is that the position of the water sucking mouth of two impellers in the draining section is laterally zygomorphic back-to-back.Therefore, axial force can obtain balance.
The locking nut of impeller 28 shown in Figure 47 has nut sheath 90 shown in Figure 50.The 90 the most handy wear resistant elastic material manufacturings of nut sheath are as rubber, nylon etc.
Fig. 4 Fig. 5, Figure 32 Figure 33, three embodiments' of Figure 46 Figure 47 pump-foot has filter screen 120.
Embodiment shown in Figure 1 is the schematic representation that the pump-foot side directly connects suction sleeve 139.
Fig. 2, embodiment's pump-foot shown in Figure 3 have filter screen 120, and the following water sucking mouth of pump-foot can also connect the schematic representation of suction sleeve 139 simultaneously.Wherein Fig. 3 has bearing 140 at the bottom of the pump in addition.
Claims (10)
1. vertical pump for mine---the concave weld husky submersible pump that runs in, 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 in the shell of the pump housing (27) and the space between the guide plate (136) several dividing plates (137) being arranged, dividing plate (137) is separated a plurality of Kong Gezhong of the space gained between shell and the guide plate (136), the port hole lattice that have access portal on the cover plate of outer casing end are arranged, also have by close lid hole lattice of outer casing end covering palte seal (135) or entity close lid hole lattice (145); Said shell is shell (131), (132), (133), (134) or the shell of two stage pump (131), (132) or the shell of single-stage pump (131) of multistage pump: the access portal of being opened on the cover plate of said outer casing end respectively with port hole lattice (91), (92), (93), (94), (95) or (96) UNICOM of multistage pump, or respectively with port hole lattice (91) or (92) UNICOM of two stage pump, or with port hole lattice (91) UNICOM of single-stage pump; Said cover plate is cover plate (103), (104), (105), (106), (107), (108), (109), (100) or the cover plate of two stage pump (107), (108), (109), (100) or the cover plate of single-stage pump (109), (100) of multistage pump; Said entity close lid hole lattice (145) is the Kong Gewei entity of covering palte seal.
2. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in, it is characterized in that the guide plate (136) in shell (131) or (132) or (134) disconnects at pump housing drain outlet place, to center curvature, the other end is crooked and connect with it to main body cover (131), (132) or (134) at an end of the guide plate that is disconnected (136) of gap (141); Perhaps the guide plate (136) in the shell (133) is located to disconnect at suction chamber (93) or at suction chamber (94), the port hole lattice (92) of gap enter the room with suction (93) communicate, the port hole lattice (95) of gap enter the room with suction (94) communicate.
3. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in is characterized in that pump housing connecting section (111) or (116) have the underpressure chamber (87) of a band decompression floss hole (81) at least.
4. vertical pump for mine as claimed in claim 3---the concave weld husky submersible pump that runs in, it is characterized in that in the underpressure chamber also having above (87) underpressure chamber of a plurality of bands decompression floss holes, wherein uppermost one is underpressure chamber (86) of last band decompression floss hole (80).
5. vertical pump for mine as claimed in claim 4---the concave weld husky submersible pump that runs in is characterized in that the water retaining disk (85) that the top with the underpressure chamber of decompression floss hole has the annulus of pin (99) or band opening to connect.
6. vertical pump for mine as claimed in claim 3---the concave weld husky submersible pump that runs in, the shell (79) that it is characterized in that pump housing connecting section (111) or (116) has the dewatering outlet (121) of the fluid that the axis hole of discharging underpressure chamber cover plate leaks, and perhaps shell (79) has the offlet (138) of band dewatering outlet (121).
7. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in, it is characterized in that having on the lower cover plate (102) of pump housing connecting section (111) of multistage pump the suction chamber (88) of band suction port (98), between the pump housing drain outlet at suction chamber (88) and first order impeller (28) place vertical perforation pump housing section (112) is arranged, (113), (114), (115) port hole lattice (91), or between the pump housing drain outlet at suction chamber (88) and first order impeller (28) place vertical perforation pump housing section (112) is arranged, (113), (119) port hole lattice (91), the suction chamber (88) that band suction port (98) are perhaps arranged on the lower cover plate (102) of the pump housing connecting section (111) of two stage pump, between the pump housing drain outlet at suction chamber (88) and first order impeller (28) place vertical perforation pump housing section (114) is arranged, (115) port hole lattice (91), or the port hole lattice (91) of vertical perforation pump housing section (119) are arranged between the pump housing drain outlet at suction chamber (88) and first order impeller (28) place, lower cover plate (102) has the opening that communicates with port hole lattice (91) and port hole lattice (96).
8. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in, it is characterized in that the water absorbing section (113) that multistage pump has suction chamber (93) and suction chamber (94) to combine as a whole back-to-back, there are cover plate (105) and cover plate (106) in the two ends up and down of water absorbing section (113), cover plate (105) has the opening that communicates with port hole lattice (91) and port hole lattice (95), cover plate (106) has the opening that communicates with port hole lattice (91) and port hole lattice (92), and said is that the position of the suction eye of two suction chambers is laterally zygomorphic back-to-back.
9. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in, it is characterized in that the draining section (112) that multistage pump has impeller (122) and impeller (124) to install back-to-back, perhaps multistage pump has the draining section (119) that impeller (28) and impeller (123) are installed back-to-back, there are cover plate (103) and (104) in the two ends up and down of draining section (112), there are cover plate (107) and (142) in the two ends up and down of draining section (119), cover plate (103) has the opening that communicates with port hole lattice (91) and port hole lattice (96), cover plate (104) has the opening that communicates with port hole lattice (91) and port hole lattice (95), cover plate (107) has the opening that communicates with port hole lattice (91) and port hole lattice (92), and said is that the position of the water inlet of two impellers is laterally zygomorphic back-to-back.
10. vertical pump for mine as claimed in claim 1---the concave weld husky submersible pump that runs in is characterized in that the locking nut of impeller (28) has nut sheath (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100788798A CN100430605C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100788798A CN100430605C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752452A true CN1752452A (en) | 2006-03-29 |
| CN100430605C CN100430605C (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100788798A Active CN100430605C (en) | 2004-09-25 | 2004-09-25 | Vertical pump for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100430605C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102852806A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852805A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852827A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| 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 |
| 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 |
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| US4076450A (en) * | 1976-01-14 | 1978-02-28 | United Centrifugal Pumps | Double volute pump with replaceable lips |
| CN2068292U (en) * | 1990-06-15 | 1990-12-26 | 李志超 | Dry submersible motor with integrated arranging sealing unit |
| JP3025668B2 (en) * | 1997-12-03 | 2000-03-27 | 株式会社酉島製作所 | Centrifugal pump |
| CN2356170Y (en) * | 1998-11-08 | 1999-12-29 | 杨明标 | Immersible pump with protector for cable output line |
| CN2365428Y (en) * | 1999-03-09 | 2000-02-23 | 赵彤涌 | Unit construction axial absorption two-stage centrifugal pump |
| CN1170064C (en) * | 1999-03-11 | 2004-10-06 | 王庆武 | Sand-discharging submerged pump |
| CN2729374Y (en) * | 2004-09-25 | 2005-09-28 | 王庆武 | Mineral vertical pump-light welded sand removing submersible pump |
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| CN102852806A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852805A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852827A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| 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 |
| 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 |
| CN102852805B (en) * | 2011-06-27 | 2015-09-02 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| CN102852806B (en) * | 2011-06-27 | 2016-02-24 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| CN106640745A (en) * | 2016-12-14 | 2017-05-10 | 衡阳市力源动力制造有限公司 | Multistage vane wheel high-lift sewage electric pump |
| CN107542673A (en) * | 2017-10-20 | 2018-01-05 | 项达章 | A kind of high-low pressure separates closed type immersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100430605C (en) | 2008-11-05 |
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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: 20081105 License type: Exclusive License Open date: 20060329 Record date: 20100915 |