CN103644127A - Low-suction type multi-stage submersible electric pump - Google Patents
Low-suction type multi-stage submersible electric pump Download PDFInfo
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- CN103644127A CN103644127A CN201310672775.9A CN201310672775A CN103644127A CN 103644127 A CN103644127 A CN 103644127A CN 201310672775 A CN201310672775 A CN 201310672775A CN 103644127 A CN103644127 A CN 103644127A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 230000009189 diving Effects 0.000 claims description 36
- 210000000476 body water Anatomy 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 230000003245 working effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
The invention relates to a low-suction type multi-stage submersible electric pump. The low-suction type multi-stage submersible electric pump is of the structure with a pump at the upper portion and a motor at the lower portion, and comprises the axial suction type multi-stage submersible pump, a motor-and-pump connector, the submersible motor and a tubular water absorption cover barrel. A motor base is connected to the bottom of the submersible motor. The multi-stage submersible pump and the submersible motor are connected in series, and the motor-and-pump connector, a motor wiring box and an upper guide bearing base are connected between the multi-stage submersible pump and the submersible motor. The low-suction type multi-stage submersible electric pump is used for strong drainage of mines, and the final level of residual water can decrease to be about 1m. The low-suction type multi-stage submersible electric pump is used for strong drainage of the mines, relay water pumps and matched electric control devices are not required to be used, the total equipment investment can be saved for users by about 5%, and power is saved by about 2-22%; under the situation of ensuring the working effect of a unit, the low-suction type multi-stage submersible electric pump is beneficial to simplifying the structure of the unit, and convenient to produce, install and maintain.
Description
Technical field
The invention belongs to Submerged Motor Pumps technical field, complex ore draining multistage submersible electric pump after being specifically related to mine drainage and flooding well.
Background technique
At present, the forced-ventilated water that mine produces and flood well after traditional multistage submersible electric pump main structure of adopting of complex ore draining be water pump upper motor under, go up machine structure under pump.As shown in Figure 9, the roughly workflow of this Submerged Motor Pumps is after ponding floods the suction port of Submerged Motor Pumps, open power initiation electric pump, first most of current flow through the former pump cover cylinder water suction flow passage chamber 171 of former submersible motor 18 and 17 formation of former pump cover cylinder, arrive submersible pump suction port, current suck the former pump of the body 14 that spues under suction port 141 and former pump under the former pump of suction body 16 suction port 161 radially by " water suction filter cap " from former pump respectively, entering former diving multistage pump 15 sucks, the former pump discharge opening 142 that sucks the body 14 that spues by former pump drains the water away.As seen from the figure, mainly consisting of three parts of this submersible pump, is respectively former submersible motor 18, former diving multistage pump 15 and former pump cover cylinder 17.And former pump cover cylinder 17 is not made Seal Design, its main cause is only to consider to impel by force most of current by submersible motor outer surface, to give the certain cooling action of submersible motor.From Fig. 9 and the above, traditional this diving multistage pump, the former pump that is only less than Submerged Motor Pumps in water logging sucks the former Pump Suction Nozzle 141 of body 14 that spues when above, and electric pump just can carry out normal draining.Once water level, lower than spue suction port 141 positions of body 14 of former suction, because air enters, pump cavitates, and just can not continue draining.And now ponding is also very dark, be approximately the total height of Submerged Motor Pumps as shown in Figure 8, generally 8 meters of left and right (wherein high approximately 4 meters of submersible motor, high approximately 4 meters of diving multistage pump).This is the height of residual water level namely.Draining is not thorough, brings very big inconvenience to the manufacturing operation of mine, because under mine, only has the depth of water in below 1 meter, and staff just can carry out various production operations below to shaft bottom.At present, in order to address this problem, common way is to increase a set of diving booster pump (containing electric controller), is placed in the lower end (suction port) of Submerged Motor Pumps.So not only increase drainage system equipment investment cost, also increased the complexity of whole unit, also brought more complexity coefficients to production, installation and later maintenance.
Above-mentioned this Submerged Motor Pumps is centrifugal design, has certain allowable suct lift ability, generally 5 meters of left and right; If imagination reduces pump intake as much as possible, the electrical machinery cover cylinder that is positioned at Pump Suction Nozzle lower end is made to sealing simultaneously, make it form the intake line of submersible pump, this Submerged Motor Pumps just can be brought into play the effect of its allowable suct lift, residual water level can be drained into the above approximately 1 meter of position of lower end entrance (the minimum residue water height that cavitation erosion retains occurs prevention pump) of cover cylinder.So just can solve the halfway problem of the high draining of residual water level.Tradition Submerged Motor Pumps, due to the work of pulling the plug, does not take into full account and utilizes this technical performance of submersible pump allowable suct lift in former design.So produced the drawback that residual water level is high.
Summary of the invention
The problem existing in order to solve the multistage submersible electric pump of machine formula under above-mentioned upper pump, the invention provides a kind of low-extraction type multistage submersible electric pump.
Low-extraction type multistage submersible electric pump is a machine structure under upper pump, comprises the water absorption cover cylinder 3 of diving multistage pump 13, pump machine connected body 8, submersible motor 4 and the circular tube shaped of axial sucking type, and the bottom of described submersible motor 4 is connecting motor base 2;
The pump housing lower end mouth of described diving multistage pump 13 is connecting the upper end-hole of the axial suction body 11 of tubulose, and axially the lower end mouth of suction body 11 is adpting flange mouth; Axially the pump shaft 10 in suction body 11 is provided with first stage impeller 12, and the suction side of first stage impeller 12 is downward, and axially suction body 11 and first stage impeller 12 form the axial suction side of diving multistage pump 13;
The upper axial end of described submersible motor 4 is being fixedly connected with the upper leading axle bearing 5 of flange-like, and the middle part of upper leading axle bearing 5 is bearing support, and bearing support periphery is flange plate; On the flange plate of upper leading axle bearing 5, offer respectively leader cable hole 52 and control cables hole 53, between bearing support and flange plate, offer the water suction runner hole 51 of perforation; The motor shaft top of submersible motor 4 is positioned at upper leading axle bearing 5 places by the cooperation of bearing and bearing support, and the flange plate diameter of upper leading axle bearing 5 is greater than the diameter of submersible motor 4; Described water absorption cover cylinder 3 is located on submersible motor 4, the upper end-hole of water absorption cover cylinder 3 is connecting the lower end surface of the flange plate of upper leading axle bearing 5, between the axial external surface of the inwall of water absorption cover cylinder 3 and submersible motor 4, form water suction flow passage chamber 31, the lower end mouth of water absorption cover cylinder 3 is connecting on motor base 2; The upper-end surface of the flange plate of upper leading axle bearing 5 is connecting the lower axial end of connection box for motor 6, and the upper axial end of connection box for motor 6 is connecting the lower axial end of pump machine connected body 8, and the upper axial end of pump machine connected body 8 is connecting the water inlet port of the multistage pump 13 of diving under water; Described connection box for motor 6 is cylindrical body, axially middle part offers motor axis hole, connection box for motor 6 is set on described motor shaft 7, the periphery of described motor axis hole is junction box body, on junction box body, offer respectively terminal box leader cable hole 62 and terminal box control cables hole 63, the connection box for motor 6 of junction box body periphery is provided with the terminal box water suction runner 61 of perforation; Described pump machine connected body 8 is circular cone shape, and axially middle part offers shaft coupling cavity, and shaft coupling cavity periphery offers and connects the axial connected bodies water suction runner 81 of pump machine connected body 8, and terminal box water suction runner 61 and connected body water suction runner 81 are communicated with; The upper end of pump machine connected body 8 is connected with the lower bearing body 11 adpting flange mouths of diving multistage pump 13; The motor shaft 7 of submersible motor 4 is connected by joint sleeve 9 with the pump shaft of diving multistage pump 13, and is positioned at the shaft coupling cavity of pump machine connected body 8; Described water suction flow passage chamber 31, water suction runner hole 51, terminal box water suction runner 61 and connected body water suction runner 81 and the connected body chamber 82 of confluxing has formed the suction piping system of sealing, described suction piping system has been guaranteed at residual water level lower than Pump Suction Nozzle in following situation, prevent that air from directly entering the axial suction side of diving multistage pump 13, avoids occurring cavitation phenomenon.
Between bearing support in upper leading axle bearing 5 and flange plate uniform offer through shaft to three water suction runner holes 51.
On described motor base 2, be covered with filter cap 1.
The two ends of described connection box for motor 6 are flange-like, the uniform terminal boxes water suction runners 61 that offer three axial perforations in nearly excircle place, three water suction runner holes 51 perforations in described three terminal boxes water suction runner 61 and upper leading axle bearing 5.
The two ends of described pump machine connected body 8 are flange-like, the top of pump machine connected body 8 is the connected body chamber 82 of confluxing, connected body confluxes chamber 82 for round table-like cavity, and connect with the flange of upper end, the periphery of shaft coupling cavity offers and connects three axial connected body water suction runners 81 of pump machine connected body 8, article three, connected body water suction runner 81 and the connected body chamber 82 of confluxing connects, and the described connected body chamber 82 of confluxing is being communicated with the water inlet port of the multistage pump 13 of diving under water; Article three, three terminal box water suction runners 61 on connected body water suction runner 81 and connection box for motor 6 are communicated with.Workflow of the present invention is: after electric pump energising starts, start working, current are first by filter cap 1, then flow through water suction flow passage chamber 31, three connected bodies water suction runners 81 of the water suction runner hole 51 of the submersible motor upper leading axle bearing 5 of flowing through successively again, the runner 61 of submersible motor connecting box 6, pump machine connected body 8, enter the connected body chamber 82 of confluxing, then in axial direction through diving multistage pump 13 first stage impellers 12, suck, then drain the water away.
Useful technique effect of the present invention embodies in the following areas:
1. low-extraction type multistage submersible electric pump of the present invention is for the forced-ventilated water of mine, and final residue water level can be reduced to 1 meter of left and right (user is referred to as " chasing after water on earth "), has solved the problem that residual water level is high;
2. the present invention, for the forced-ventilated water of mine, does not need to use relay water pump and supporting electric controller, can be user and saves equipment gross investment approximately 5%, and power savings is about 2～22% simultaneously;
3. in the situation that guaranteeing unit working effect, use the present invention to be conducive to simplify set structure, be convenient to produce, install and maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is Fig. 1 top guide bearing stand structure schematic diagram.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is Fig. 1 junction box structure schematic diagram.
Fig. 5 is the A-A sectional view of Fig. 4.
Fig. 6 is pump machine connected body structural representation in Fig. 1.
Fig. 7 is the B-B sectional view of Fig. 6.
Fig. 8 is lower bearing body structure schematic diagram in Fig. 1.
Fig. 9 is traditional multistage submersible electric pump structural representation.
Sequence number in upper figure: filter cap 1, motor base 2, water absorption cover cylinder 3, submersible motor 4, upper leading axle bearing 5, connection box for motor 6, motor shaft 7, pump machine connected body 8, joint sleeve 9, pump shaft 10, axial suction body 11, first stage impeller 12, diving multistage pump 13, former pump sucks the body 14 that spues, former diving multistage pump 15, under former pump, suction body 16, former pump cover cylinder 17, former submersible motor 18, water suction flow passage chamber 31, water suction runner hole 51, leader cable hole 52, control cables hole 53, terminal box water suction runner 61, terminal box leader cable hole 62, terminal box control cables hole 63, connected body water suction runner 81, the connected body chamber 82 of confluxing, connected body wire way 83, on former pump, suction port 141, former pump discharge opening 142, under former pump, suction port 161, former pump cover cylinder water suction flow passage chamber 171.
specific implementation method
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
Embodiment
Referring to Fig. 1, a kind of low-extraction type multistage submersible electric pump is machine structure under upper pump, comprises the water absorption cover cylinder 3 of diving multistage pump 13, pump machine connected body 8, submersible motor 4 and the circular tube shaped of axial sucking type, and the bottom of submersible motor 4 is connecting motor base 2.
Referring to Fig. 8, the pump housing lower end mouth of diving multistage pump 13 is connecting the upper end-hole of the axial suction body 11 of tubulose, and axially the lower end mouth of suction body 11 is adpting flange mouth; Axially the pump shaft 10 in suction body 11 is provided with first stage impeller 12, and the suction side of first stage impeller 12 is downward, and axially suction body 11 and first stage impeller 12 form the axial suction side of diving multistage pump 13.
Referring to Fig. 1, Fig. 2 and Fig. 3, the upper axial end of submersible motor 4 is being fixedly connected with the upper leading axle bearing 5 of flange-like, and the middle part of upper leading axle bearing 5 is bearing support, and bearing support periphery is flange plate; On the flange plate of upper leading axle bearing 5, offer respectively leader cable hole 52 and control cables hole 53, between bearing support and flange plate uniform offer through shaft to three water suction runner holes 51; The cooperation of 7 of the motor shafts of submersible motor 4 by bearing and bearing support is positioned at upper leading axle bearing 5 places, and the flange plate diameter of upper leading axle bearing 5 is greater than the diameter of submersible motor 4; Described water absorption cover cylinder 3 is located on submersible motor 4, the upper end-hole of water absorption cover cylinder 3 is connecting the lower end surface of the flange plate of upper leading axle bearing 5, between the axial external surface of the inwall of water absorption cover cylinder 3 and submersible motor 4, form water suction flow passage chamber 31, the lower end mouth of water absorption cover cylinder 3 is connecting on motor base 2.On motor base 2, be covered with filter cap 1.The upper-end surface of the flange plate of upper leading axle bearing 5 is connecting the lower axial end of connection box for motor 6, and the upper axial end of connection box for motor 6 is connecting the lower axial end of pump machine connected body 8, and the upper axial end of pump machine connected body 8 is connecting the water inlet port of the multistage pump 13 of diving under water.
Referring to Fig. 4 and Fig. 5, connection box for motor 6 is cylindrical body, two ends are flange-like, axially middle part offers motor axis hole, connection box for motor 6 is set on described motor shaft, the periphery of described motor axis hole is junction box body, on junction box body, offer respectively terminal box leader cable hole 62 and terminal box control cables hole 63, the connection box for motor 6 of junction box body periphery is uniform offers the lower end of three 61, three terminal boxes water suction runners 61 of terminal boxes water suction runner that axially connect and three water suction runner holes 51 in upper leading axle bearing 5 connect.
Referring to Fig. 6 and Fig. 7, pump machine connected body 8 is circular cone shape, two ends are flange-like, the top of pump machine connected body 8 is the connected body chamber 82 of confluxing, connected body confluxes chamber 82 for round table-like cavity, and connect with the flange of upper end, the middle part of pump machine connected body 8 is shaft coupling cavity, shaft coupling cavity periphery offers and connects three axial connected body water suction runners 81 of pump machine connected body 8, article three, connected body water suction runner 81 and the connected body chamber 82 of confluxing connects, and three terminal boxes water suction runners 61 on three connected body water suction runners 81 and connection box for motor 6 are communicated with; The upper end of pump machine connected body 8 is connected with the axial suction body 11 adpting flange mouths of diving multistage pump 13, makes the conflux water inlet port connection of diving multistage pump 13 in chamber 82 of connected body.Referring to Fig. 1, the pump shaft of the motor shaft 7 diving multistage pumps 13 of submersible motor 4 connects by joint sleeve 9, and is positioned at the shaft coupling cavity of pump machine connected body 8.Described water suction flow passage chamber 31, water suction runner hole 51, connection box for motor runner 61 and connected body water suction runner 81 and the connected body chamber 82 of confluxing has formed the suction piping system of sealing, described suction piping system has been guaranteed at residual water level lower than Pump Suction Nozzle in following situation, prevent that air from directly entering the axial suction side of diving multistage pump 13, avoids occurring cavitation phenomenon.13 of diving multistage pumps continue water suction by this suction piping system and can reach 4-5 rice dark (allowable suct lift of pump), so that final residual water level is down to 1 meter of left and right.
Working principle of the present invention is described as follows:
After starting, electric pump energising starts working, the water suction filter cap 1 that first current pass through, then flow through the water suction flow passage chamber 31 forming between cover cylinder 3 and submersible motor 4, the water suction runner 81 of the water suction runner hole 51 of the submersible motor upper leading axle bearing 5 of flowing through successively again, the terminal box of connection box for motor 6 water suction runner 61, pump machine connected body 8, enter the connected body chamber 82 of confluxing, then in axial direction the first stage impeller in the axial suction body 11 of multistage pump 13 of axially diving under water 12 sucks, and then drains the water away.
When residual water level drop to axial suction diving multistage pump 13 bottoms to suction body 11 or when following, residual water level is about 4 meters of left and right (height that is equivalent to submersible motor 4), Shi Qianshui multistage pump 13 utilizes water absorption cover cylinder 3, upper leading axle bearing 5, connection box for motor 6 and pump machine connected body 8 to form the pipeline of the diving multistage pump water suction of sealing, continuation by residue water be extracted into motor bottom or more than, retains about 1 meter residue water (being retained water level by pre-cavitation-preventive generation causes electric pump fault).
In order further to ensure enough sealings, the cable outlet hole of submersible motor 4 is not stayed on cover cylinder, during design, retained the main push-towing rope hole 52 of upper leading axle bearing 5, the former design of the junctor wire way 83 of the terminal box leader cable hole 62 of connection box for motor 6, pump machine connected body 8 etc., concrete operation method: cable is passed to leader cable hole 52, the control cables hole 53 of upper leading axle bearing 5 successively, the terminal box leader cable hole 62 of connection box for motor 6, terminal box control cables hole 63, finally the connected body wire way 83 by pump machine connected body 8 directly extracts.
Claims (5)
1. a low-extraction type multistage submersible electric pump, for machine structure under upper pump, the water absorption cover cylinder (3) that comprises diving multistage pump (13), pump machine connected body (8), submersible motor (4) and the circular tube shaped of axial sucking type, the bottom of described submersible motor (4) is connecting motor base (2);
It is characterized in that: the pump housing lower end mouth of described diving multistage pump (13) is connecting the upper end-hole of the axial suction body (11) of tubulose, axially the lower end mouth of suction body (11) is adpting flange mouth; Axially the pump shaft (10) in suction body (11) is provided with first stage impeller (12), and the suction side of first stage impeller (12) is downward, and axially suction body (11) and first stage impeller (12) form the axial suction side of diving multistage pump (13);
The upper axial end of described submersible motor (4) is being fixedly connected with the upper leading axle bearing (5) of flange-like, and the middle part of upper leading axle bearing (5) is bearing support, and bearing support periphery is flange plate; On the flange plate of upper leading axle bearing (5), offer respectively leader cable hole (52) and control cables hole (53), between bearing support and flange plate, offer the water suction runner hole (51) of perforation; The cooperation of the motor shaft top of submersible motor (4) by bearing and bearing support is positioned at upper leading axle bearing (5) to be located, and the flange plate diameter of upper leading axle bearing (5) is greater than the diameter of submersible motor (4); Described water absorption cover cylinder (3) is located on submersible motor (4), the upper end-hole of water absorption cover cylinder (3) is connecting the lower end surface of the flange plate of upper leading axle bearing (5), between the axial external surface of the inwall of water absorption cover cylinder (3) and submersible motor (4), form water suction flow passage chamber (31), the lower end mouth of water absorption cover cylinder (3) is connecting on motor base (2); The upper-end surface of the flange plate of upper leading axle bearing (5) is connecting the lower axial end of connection box for motor (6), the upper axial end of connection box for motor (6) is connecting the lower axial end of pump machine connected body (8), and the upper axial end of pump machine connected body (8) is connecting the water inlet port of diving multistage pump (13); Described connection box for motor (6) is cylindrical body, axially middle part offers motor axis hole, connection box for motor (6) is set on described motor shaft (7), the periphery of described motor axis hole is junction box body, on junction box body, offer respectively terminal box leader cable hole (62) and terminal box control cables hole (63), the connection box for motor of junction box body periphery (6) is provided with the terminal box water suction runner (61) of perforation; Described pump machine connected body (8) is circular cone shape, axially middle part offers shaft coupling cavity, shaft coupling cavity periphery offers and connects the axial connected body water suction runner (81) of pump machine connected body (8), and terminal box water suction runner (61) and connected body water suction runner (81) connection; The upper end of pump machine connected body (8) is connected with lower bearing body (11) the adpting flange mouth of diving multistage pump (13); The motor shaft (7) of submersible motor (4) is connected by joint sleeve (9) with the pump shaft of diving multistage pump (13), and is positioned at the shaft coupling cavity of pump machine connected body (8); Described water suction flow passage chamber (31), upper leading axle bearing runner hole (51), connection box for motor runner (61) and pump connecting junctor runner (81) and the chamber of confluxing (82) have formed the suction piping system of sealing, described suction piping system has been guaranteed at residual water level lower than Pump Suction Nozzle in following situation, prevent that air from directly entering the axial suction side of diving multistage pump (13), avoids occurring cavitation phenomenon.
2. a kind of low-extraction type multistage submersible electric pump according to claim 1, is characterized in that: between the bearing support in upper leading axle bearing (5) and flange plate uniform offer through shaft to three water suction runner holes (51).
3. a kind of low-extraction type multistage submersible electric pump according to claim 1, is characterized in that: on described motor base (2), be covered with filter cap (1).
4. a kind of low-extraction type multistage submersible electric pump according to claim 1 and 2, it is characterized in that: the two ends of described connection box for motor (6) are flange-like, the uniform terminal boxes water suction runners (61) that offer three axial perforations in nearly excircle place, three water suction runner holes (51) perforation in described three terminal boxes water suction runner (61) and upper leading axle bearing (5).
5. according to a kind of low-extraction type multistage submersible electric pump described in claim 1 or 4, it is characterized in that: the two ends of described pump machine connected body (8) are flange-like, the top of pump machine connected body (8) is the connected body chamber (82) of confluxing, connected body confluxes chamber (82) for round table-like cavity, and connect with the flange of upper end, the periphery of shaft coupling cavity offers and connects three axial connected body water suction runners (81) of pump machine connected body (8), article three, connected body water suction runner (81) and connected body chamber (82) perforation of confluxing, the described connected body chamber (82) of confluxing is being communicated with the water inlet port of diving multistage pump (13), article three, three the terminal box water suction runners (61) on connected body water suction runner (81) and connection box for motor (6) are communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672775.9A CN103644127B (en) | 2013-12-12 | 2013-12-12 | A kind of Low-suction type multi-stage submersible electric pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672775.9A CN103644127B (en) | 2013-12-12 | 2013-12-12 | A kind of Low-suction type multi-stage submersible electric pump |
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| CN103644127A true CN103644127A (en) | 2014-03-19 |
| CN103644127B CN103644127B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310672775.9A Active CN103644127B (en) | 2013-12-12 | 2013-12-12 | A kind of Low-suction type multi-stage submersible electric pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916587A (en) * | 2019-12-31 | 2020-03-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Dishwasher and dispenser and door assembly for a dishwasher |
| CN114810618A (en) * | 2022-04-14 | 2022-07-29 | 翁环凤 | Double-pump type variable-frequency submersible pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB827590A (en) * | 1955-05-25 | 1960-02-10 | Hayward Tyler Company Ltd | Improvements in or relating to multi-stage centrifugal pumps |
| CN2439554Y (en) * | 2000-07-07 | 2001-07-18 | 梁毅杰 | Up-pumping-lower-sucking type electric submerged pump |
| WO2008011961A1 (en) * | 2006-07-26 | 2008-01-31 | Itt Manufacturing Enterprises, Inc. | Cable connection to a submersible pump |
| CN201486888U (en) * | 2009-08-26 | 2010-05-26 | 张维学 | Deep well multi-level submerged pump water inlet outer sleeve |
| CN203670236U (en) * | 2013-12-12 | 2014-06-25 | 合肥恒大江海泵业股份有限公司 | Low pumping type multi-stage submersible electric pump |
-
2013
- 2013-12-12 CN CN201310672775.9A patent/CN103644127B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB827590A (en) * | 1955-05-25 | 1960-02-10 | Hayward Tyler Company Ltd | Improvements in or relating to multi-stage centrifugal pumps |
| CN2439554Y (en) * | 2000-07-07 | 2001-07-18 | 梁毅杰 | Up-pumping-lower-sucking type electric submerged pump |
| WO2008011961A1 (en) * | 2006-07-26 | 2008-01-31 | Itt Manufacturing Enterprises, Inc. | Cable connection to a submersible pump |
| CN201486888U (en) * | 2009-08-26 | 2010-05-26 | 张维学 | Deep well multi-level submerged pump water inlet outer sleeve |
| CN203670236U (en) * | 2013-12-12 | 2014-06-25 | 合肥恒大江海泵业股份有限公司 | Low pumping type multi-stage submersible electric pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916587A (en) * | 2019-12-31 | 2020-03-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Dishwasher and dispenser and door assembly for a dishwasher |
| CN114810618A (en) * | 2022-04-14 | 2022-07-29 | 翁环凤 | Double-pump type variable-frequency submersible pump |
| CN114810618B (en) * | 2022-04-14 | 2024-01-19 | 哈尔滨一泵水泵厂 | Double-pump type variable-frequency submersible pump |
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| CN103644127B (en) | 2016-04-27 |
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Denomination of invention: A low suction multi-stage submersible electric pump Effective date of registration: 20231129 Granted publication date: 20160427 Pledgee: Industrial and Commercial Bank of China Changfeng Branch Pledgor: HEFEI HENGDA JIANGHAI PUMP Co.,Ltd. Registration number: Y2023980068468 |
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