CN106996397A - The interior cooling recirculation system structure of magnetic drive pump - Google Patents
The interior cooling recirculation system structure of magnetic drive pump Download PDFInfo
- Publication number
- CN106996397A CN106996397A CN201710363254.3A CN201710363254A CN106996397A CN 106996397 A CN106996397 A CN 106996397A CN 201710363254 A CN201710363254 A CN 201710363254A CN 106996397 A CN106996397 A CN 106996397A
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- CN
- China
- Prior art keywords
- inlet opening
- opened
- pump
- interior
- magnet rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Abstract
The interior cooling recirculation system structure of magnetic drive pump of the present invention, it is characterized in that：Lead to the bearing (3a that horizontally slips by what is opened up on pump cover (2), the inlet opening (A) of axocoel (4) between 3b), what is opened up on main shaft (5) leads to the inlet opening (B) of main shaft (5) rear end, the inlet opening (C) connected with inlet opening on main shaft (B) that distribution is radially opened up on interior magnet rotor (6) rear end face, what is opened up on pump cover (2) leads to the fluid hole (D) of separation sleeve inner chamber (70b) on front side of interior magnet rotor (6), the pressure balance return port (E) opened up on impeller (1) is constituted, medium carries out centrifugal pump effect effect when passing through inlet opening (C) on interior magnet rotor (6), promote cooling medium fluid ability.Suitable for the conveying of easy cavitation medium, prevent the heat that magnetic is vortexed from returning to impeller inlet generation steam explosion, cavitation phenomenons, improve the anti-cavitation performance of magnetic drive pump, the operating mode for being suitable for complexity is used.
Description
Technical field
The present invention relates to the interior cooling recirculation system structure of magnetic drive pump, particularly magnetic drive pump.
Background technology
Medium in pump chamber is transported in separation sleeve as circulating cooling liquid by the interior cooling recirculation system of magnetic drive pump to be taken away
In separation sleeve, front and rear thrust disc and the heat for sliding back and forth the parts such as bearing, meanwhile, also to front and rear thrust disc, slide back and forth axle
Lubrication is held.
The interior cooling recirculation system of prior art magnetic drive pump is the higher-pressure region by correspondence pump chamber impeller outlet on pump cover
The inlet opening for leading to separation sleeve inner chamber opened up, the return port opened up in pump spindle center, the pressure that wall root is opened up after the impeller
Equilibrium reflux hole is constituted, and the medium conveyed in pump chamber is led in separation sleeve by what correspondence pump chamber higher-pressure region was opened up on pump cover
The inlet opening of chamber is entered in separation sleeve inner chamber, and the return port that medium main flow is opened up by pump spindle center is back to impeller central low pressure
Area, the heat in separation sleeve is taken away；Meanwhile, a part of medium entered in separation sleeve inner chamber passes through sliding bearing and thrust
The fit clearance of the fit clearance of bearing, sliding bearing and axle sleeve, and opened up in the mating surface of sliding bearing and thrust bearing
The pressure that chute, impeller rear wall root root open up of crossing crossed chute, opened up in the mating surface of sliding bearing and axle sleeve put down
Weighing apparatus return port is back to the low-pressure area in impeller, and thrust bearing, sliding bearing are cooled down and lubricated.
Above-mentioned prior art is when the rate-of flow that pump chamber is exported is too low, flow velocity is excessively slow, and the interior cooling of above-mentioned magnetic drive pump is followed
The natural-circulation capacity of loop system is substantially reduced, and it is cold that the rate-of flow in the interior cooling recirculation system of magnetic drive pump is not enough to progress
When but taking away heat, may result in interior magnet rotor because temperature rise is too high and loss of excitation；Also result in sliding bearing temperature simultaneously too high.
And, when the medium temperature conveyed is very high, the interior cooling recirculation system of magnetic drive pump effective can not take away heat
Amount, can also play further heat effect to separation sleeve, interior magnet rotor, sliding bearing etc., cause magnetic drive pump to damage.
In addition, when the medium of conveying is easy cavitation medium, by heated Jie as coolant in separation sleeve inner chamber
Matter enters impeller central portion in the return port opened up from pump spindle center（Low-pressure area）When, because pressure reduction medium easily occurs
Steam explosion, cavitation phenomenons；Meanwhile, heated medium is in impeller central portion（Low-pressure area）Meet and mix with the cryogenic media of porch
When, to cryogenic media produce heat effect so that cause cryogenic media also easily produce steam explosion, cavitation phenomenons, produce vibration and
Dry sound, causes the irregular operation of magnetic drive pump, accelerates magnetic drive pump to damage.
The content of the invention
The purpose of the present invention is to be improved to follow there is provided a kind of interior cooling of magnetic drive pump for above-mentioned the deficiencies in the prior art
Loop system structure, to overcome the shortcoming of above-mentioned existing technology, make magnetic drive pump in the case where conveying easy cavitation medium and various operating modes in use,
Interior cooling recirculation system reliability service, it is ensured that cooling effect, and it is more steady, reliable using the operation of pump.
The interior cooling recirculation system structure of magnetic drive pump of the present invention, by the higher-pressure region in correspondence pump chamber Q impellers 1 exit in pump cover
What is opened up on 2 leads to the inlet opening A for the axocoel 4 between bearing 3a, 3b that horizontally slips, and is horizontally slipping between bearing 3a, 3b
What is opened up on main shaft 5 in axocoel 4 leads to the inlet opening B of the rear end of main shaft 5, and distribution is radially opened on the interior rear end face 60 of magnet rotor 6
If connection corresponding with inlet opening B rear ends on main shaft 5 inlet opening C, C pairs of the inlet opening of inclined radial direction on interior magnet rotor (6)
Media fluid formation centrifugal pump effect, what correspondence casing wear ring 21 outside was opened up on pump cover 2 the lead to interior front side of magnet rotor 6 every
Constituted from set inner chamber 70b fluid hole D, the pressure balance return port E opened up in the rear wall root of impeller 1；Inlet opening A on pump cover 2
Inlet A ' pitch diameter be more than pump cover 2 on fluid hole D liquid outlet D ' pitch diameter, to form inlet A ' with going out
Liquid mouthful D ' pressure differential.
Inlet opening A of the medium on pump cover 2 in pump chamber Q of the present invention enters the axle horizontally slipped between bearing 3a, 3b
In chamber 4, the inlet opening C on inlet opening B, interior magnet rotor 6 on main shaft 5 enters the separation sleeve inner chamber of the interior rear side of magnet rotor 6
In 70a, medium carries out centrifugal pump effect effect when passing through the inlet opening C on interior magnet rotor 6, improves the interior rear side of magnet rotor 6 isolation
The pressure medium in the 70a of inner chamber is covered, promotes to improve cooling medium fluid ability.
Fit clearance of the medium through interior magnet rotor 6 and separation sleeve 7 in the interior rear side separation sleeve inner chamber 70a of magnet rotor 6 is flowed to
In the separation sleeve inner chamber 70b of the interior front side of magnet rotor 6, the heat in most of cooling medium carrying separation sleeve 7 is through going out on pump cover 2
Fluid apertures D is passed back into pump chamber Q；
Sub-fraction cooling medium by the front side of interior magnet rotor 6 separation sleeve inner chamber 70b matching somebody with somebody through right sliding bearing 3a and its axle sleeve
Close gap to flow into the axocoel 4 horizontally slipped between bearing 3a, 3b, cooling and lubricating is carried out to right sliding bearing 3a；
Meanwhile, the sub-fraction cooling medium horizontally slipped between bearing 3a, 3b in axocoel 4 is through left sliding bearing 3b and its axle sleeve
Fit clearance, the pressure balance return port D of the rear wall root of impeller 1 be back to the middle part low-pressure area of impeller 1, to right sliding bearing 3b
Carry out cooling and lubricating.
The present invention is simple in construction, and manufacture is easy, into magnetic drive pump in cooling recirculation system cooling medium by interior magnetic turn
Carry out centrifugal pump effect effect during inlet opening C on son 6, improve in medium pressure in magnet rotor 6 rear side separation sleeve inner chamber 70a
Power, promotes to improve cooling medium fluid ability.
When the rate-of flow that pump chamber is exported is too low, flow velocity is excessively slow, the cooling of cooling recirculation system in magnetic drive pump can be ensured
Media flow is abundant, it is ensured that cooling effect, effectively prevent interior magnet rotor because temperature rise is too high and loss of excitation；Prevent sliding bearing temperature simultaneously
Spend height.
Moreover, when the medium of conveying is easy cavitation medium, by the heated most of medium in separation sleeve inner chamber from
When fluid hole D on pump cover 2 is back in pump chamber Q, because fluid hole D is not at the low-pressure area of pump chamber central part, pressure medium
Reduction is not notable, and medium is not susceptible to steam explosion, cavitation phenomenons；Meanwhile, most medium also will not be with the center of impeller in pump chamber 1
The low temperature of mouth, the medium of low pressure, which directly meet to mix, at portion's feed liquor produces heat effect, and causes defeated at the inlet of impeller 1
Send medium to produce steam explosion, cavitation phenomenons, pump is produced vibration and dry sound, make magnetic force pump operation more steady.
The present invention is especially suitable for the conveying of easy cavitation medium, prevent the heat that magnetic is vortexed from returning to impeller inlet generation vapour
Quick-fried, cavitation phenomenons, substantially increases the anti-cavitation performance of magnetic drive pump, and the operating mode for being suitable for complexity is used.
Brief description of the drawings
Fig. 1 is structural representation of the embodiment of the present invention.
Embodiment
The interior cooling recirculation system structure of magnetic drive pump of the present invention, by the higher-pressure region in correspondence pump chamber Q impellers 1 exit in pump cover
What is opened up on 2 leads to the inlet opening A for the axocoel 4 between bearing 3a, 3b that horizontally slips, and is horizontally slipping between bearing 3a, 3b
What is opened up on main shaft 5 in axocoel 4 leads to the inlet opening B of the rear end of main shaft 5, and distribution is radially opened on the interior rear end face 60 of magnet rotor 6
If connection corresponding with inlet opening B rear ends on main shaft 5 inlet opening C, C pairs of the inlet opening of inclined radial direction on interior magnet rotor (6)
Media fluid formation centrifugal pump effect, what correspondence casing wear ring 21 outside was opened up on pump cover 2 the lead to interior front side of magnet rotor 6 every
Constituted from set inner chamber 70b fluid hole D, the pressure balance return port E opened up in the rear wall root of impeller 1；Inlet opening A on pump cover 2
Inlet A ' pitch diameter be more than pump cover 2 on fluid hole D liquid outlet D ' pitch diameter, to form inlet A ' with going out
Liquid mouthful D ' pressure differential.
Inlet opening A of the medium on pump cover 2 in pump chamber Q of the present invention enters the axle horizontally slipped between bearing 3a, 3b
In chamber 4, the inlet opening C on inlet opening B, interior magnet rotor 6 on main shaft 5 enters the separation sleeve inner chamber of the interior rear side of magnet rotor 6
In 70a, medium carries out centrifugal pump effect effect when passing through the inlet opening C on interior magnet rotor 6, improves the interior rear side of magnet rotor 6 isolation
The pressure medium in the 70a of inner chamber is covered, promotes to improve cooling medium fluid ability.In the interior rear side separation sleeve inner chamber 70a of magnet rotor 6
Fit clearance of the medium through interior magnet rotor 6 and separation sleeve 7 is flowed in the separation sleeve inner chamber 70b of the interior front side of magnet rotor 6, most of cold
But the heat that medium is carried in separation sleeve 7 is passed back into pump chamber Q through the fluid hole D on pump cover 2；Sub-fraction cooling medium is by interior
Fit clearances of the separation sleeve inner chamber 70b through right sliding bearing 3a and its axle sleeve of the front side of magnet rotor 6 flow into the bearing 3a that horizontally slips,
In axocoel 4 between 3b, cooling and lubricating is carried out to right sliding bearing 3a；Meanwhile, horizontally slip between bearing 3a, 3b in axocoel 4
Fit clearance of the sub-fraction cooling medium through left sliding bearing 3b and its axle sleeve, the pressure balance of the rear wall root of impeller 1 returns
Discharge orifice D is back to the middle part low-pressure area of impeller 1, and cooling and lubricating is carried out to right sliding bearing 3b.
Claims (1)
1. the interior cooling recirculation system structure of magnetic drive pump, it is characterized in that：Higher-pressure region by correspondence pump chamber (Q) impeller (1) exit
The inlet opening (A) of the axocoel (4) led between the bearing that horizontally slips (3a, 3b) opened up on pump cover (2), in the axle that horizontally slips
The inlet opening (B) for leading to main shaft (5) rear end opened up on the main shaft (5) in the axocoel (4) between (3a, 3b) is held, is turned in interior magnetic
The inlet opening (C) for the connection corresponding with inlet opening (B) rear end on main shaft (5) that distribution is radially opened up, interior on sub (6) rear end face (60)
The inlet opening (C) of inclined radial direction is to media fluid formation centrifugal pump effect on magnet rotor (6), the correspondence pump cover on pump cover (2)
What is opened up on the outside of sealing ring (21) leads to the fluid hole (D) of separation sleeve inner chamber (70b) on front side of interior magnet rotor (6), after impeller (1)
The pressure balance return port (E) that wall root is opened up is constituted；The pitch diameter of the inlet (A ') of inlet opening (A) is big on pump cover (2)
In the pitch diameter of the liquid outlet (D ') of fluid hole (D) on pump cover (2), to form the pressure of inlet (A ') and liquid outlet (D ')
Difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363254.3A CN106996397A (en) | 2017-05-22 | 2017-05-22 | The interior cooling recirculation system structure of magnetic drive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710363254.3A CN106996397A (en) | 2017-05-22 | 2017-05-22 | The interior cooling recirculation system structure of magnetic drive pump |
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| Publication Number | Publication Date |
|---|---|
| CN106996397A true CN106996397A (en) | 2017-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710363254.3A Pending CN106996397A (en) | 2017-05-22 | 2017-05-22 | The interior cooling recirculation system structure of magnetic drive pump |
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| Country | Link |
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| CN (1) | CN106996397A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
| CN108894981A (en) * | 2018-08-23 | 2018-11-27 | 太仓顺达磁力泵科技有限公司 | A kind of self cooled magnetic drive pump |
| CN109854539A (en) * | 2019-03-31 | 2019-06-07 | 丹东克隆先锋泵业有限公司 | Magnetic drive pump with external cooler |
| CN112032067A (en) * | 2020-08-22 | 2020-12-04 | 安徽江南泵阀集团有限公司 | Self-cooling magnetic pump |
| CN113482964A (en) * | 2021-08-23 | 2021-10-08 | 江苏永一泵业科技集团有限公司 | High-temperature hot water circulating pump with guide bearing lubricating and cooling structure |
| CN116696782B (en) * | 2023-07-18 | 2024-04-26 | 江苏大学 | Multistage magnetic pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814275A2 (en) * | 1996-06-20 | 1997-12-29 | Franz Klaus Union Armaturen Pumpen GmbH & Co. | Hydrodynamic sliding bearing for the rotor of a pump |
| CN101255868A (en) * | 2007-12-10 | 2008-09-03 | 兰州理工大学 | Embedded vane pump of motor |
| CN101555880A (en) * | 2009-05-13 | 2009-10-14 | 丹东克隆集团有限责任公司 | Magnetic pump |
| CN202250896U (en) * | 2011-08-09 | 2012-05-30 | 浙江腾宇泵阀设备有限公司 | High-pressure reverse circulation magnetic pump |
| CN102650295A (en) * | 2012-05-17 | 2012-08-29 | 烟台盛泉泵业有限公司 | Improved magnetic pump |
-
2017
- 2017-05-22 CN CN201710363254.3A patent/CN106996397A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0814275A2 (en) * | 1996-06-20 | 1997-12-29 | Franz Klaus Union Armaturen Pumpen GmbH & Co. | Hydrodynamic sliding bearing for the rotor of a pump |
| CN101255868A (en) * | 2007-12-10 | 2008-09-03 | 兰州理工大学 | Embedded vane pump of motor |
| CN101555880A (en) * | 2009-05-13 | 2009-10-14 | 丹东克隆集团有限责任公司 | Magnetic pump |
| CN202250896U (en) * | 2011-08-09 | 2012-05-30 | 浙江腾宇泵阀设备有限公司 | High-pressure reverse circulation magnetic pump |
| CN102650295A (en) * | 2012-05-17 | 2012-08-29 | 烟台盛泉泵业有限公司 | Improved magnetic pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361204A (en) * | 2018-04-25 | 2018-08-03 | 丹东晟辉石化设备有限公司 | It is anti-to evacuate anti-granular pattern magnetic drive pump |
| CN108894981A (en) * | 2018-08-23 | 2018-11-27 | 太仓顺达磁力泵科技有限公司 | A kind of self cooled magnetic drive pump |
| CN109854539A (en) * | 2019-03-31 | 2019-06-07 | 丹东克隆先锋泵业有限公司 | Magnetic drive pump with external cooler |
| CN112032067A (en) * | 2020-08-22 | 2020-12-04 | 安徽江南泵阀集团有限公司 | Self-cooling magnetic pump |
| CN113482964A (en) * | 2021-08-23 | 2021-10-08 | 江苏永一泵业科技集团有限公司 | High-temperature hot water circulating pump with guide bearing lubricating and cooling structure |
| CN116696782B (en) * | 2023-07-18 | 2024-04-26 | 江苏大学 | Multistage magnetic pump |
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Application publication date: 20170801 |