CN102518589A - Leakless high-temperature hot oil medium delivery pump - Google Patents
Leakless high-temperature hot oil medium delivery pump Download PDFInfo
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- CN102518589A CN102518589A CN2012100065647A CN201210006564A CN102518589A CN 102518589 A CN102518589 A CN 102518589A CN 2012100065647 A CN2012100065647 A CN 2012100065647A CN 201210006564 A CN201210006564 A CN 201210006564A CN 102518589 A CN102518589 A CN 102518589A
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- hot oil
- temperature hot
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- oil medium
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Abstract
The invention discloses a leakless high-temperature hot oil medium delivery pump, which is characterized in that an electromagnetic motor is adopted; the tail of the shell of the electromagnetic motor is sealed by a motor tail end cover; the shaft extension end of the electromagnetic motor is sealed by a pump cover; a communication cavity is formed by the inner cavity of the electromagnetic motor and the inner cavity of a pump body; a main shaft is sealed in the communication cavity; the stator winding and the rotor winding of the electromagnetic motor are immersed in a cold oil liquid; and the pressure of the cold oil liquid is 0.05-0.2 MPa higher than the pressure of the pumped high-temperature hot oil medium. When the leakless high-temperature hot oil medium delivery pump works, the hot oil medium does not leak. A shaft seal is not needed, the leakage probability of the high-temperature hot oil medium during the pump working is completely eliminated.
Description
Technical field
The present invention relates to a kind of high-temperature hot oil medium transport pump, a kind of circular-pump that can be widely used in the conveying high temperature oils medium in the industries such as oil, chemical industry of more specifically saying so.
Background technique
High-temperature hot oil medium transport pump is widely used in oil, the chemical industry, is used to carry the inflammable and explosive medium of high temperature, in case take place to leak then the possibility initiation fire.At present, the motor of high-temperature hot oil medium transport pump all is to use conventional threephase asynchronous, and pump shaft stretches out from pump chamber through coupling and motor shaft and connects, and therefore needs to use gland seal device to prevent that the deep fat medium from leaking.Gland seal device adopts mechanical seal basically, yet the mechanical seal parts of high-temperature hot oil medium transport pump bear high temperature for a long time, cause its life-span shorter, needs periodic maintenance to change, and maintenance cost is higher; Moreover the seal ring of mechanical seal is easy to generate distortion and hot crack under high-temperature condition; And the elastic compensating element can lose bullet and lose compensation ability under high-temperature condition; These all can cause the mechanical seal catastrophic failure; Thereby the deep fat medium appears toward external leakage, influence the safe operation of high-temperature hot oil medium transport pump.It is the main cause that causes high-temperature hot oil medium transport failure of pump that gland seal device leaks.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology deficiency, a kind of leak-free high temperature deep fat medium transport pump that need not to use the axle envelope is provided, thoroughly having eliminated pump and the possibility that the high-temperature hot oil medium leaks when work, occurred.
The present invention adopts following technological scheme for the technical solution problem:
Leak-free high temperature deep fat medium transport pump structure characteristics of the present invention are to adopt electromagnetic machine, and the housing of said electromagnetic machine, is sealed by pump cover at the shaft extension end by the sealing of motor afterbody end cap at afterbody, and the inner chamber of said electromagnetic machine and the inner chamber of the pump housing form communicated cavity; Main shaft is enclosed in the said communicated cavity; The staor winding of said electromagnetic machine and rotor winding are immersed in the cold oil liquid, and the pressure of the pressure ratio pumping high-temperature hot oil medium of said cold oil liquid exceeds 0.05MPa-0.2Mpa.
Leak-free high temperature deep fat medium transport pump structure characteristics of the present invention also are:
The auxiliary impeller that rotates with main shaft in the afterbody setting of said main shaft; The differential pressure jar of said auxiliary impeller and outer installment, heat exchanger and filter constitute the closed circulation system of cold oil liquid.
Between the pump cover of the housing of said electromagnetic machine and the said pump housing, float ring seal is set.
Compared with present technology, beneficial effect of the present invention is embodied in:
1, the present invention adopts electromagnetic machine; The inner chamber of electromagnetic machine and the inner chamber of the pump housing form communicated cavity, and main shaft is enclosed in the communicated cavity, no extension; Therefore need not to use the axle envelope, solved present high-temperature hot oil medium transport pump fully and occurred the problem of deep fat medium because of the axle envelope lost efficacy toward external leakage.
2, the present invention is full of the cold oil liquid of a little higher than pumping high-temperature hot oil of pressure pressure medium in the inner chamber of electromagnetic machine; Between the electromagnetic machine and the pump housing, arrange float ring seal; Make the pressure medium of cold and hot oil reach state of equilibrium basically; Can not only stop the deep fat dielectric leakage in motor cavity, to damage motor, also more efficiently stop the cold oil flow to go into pump housing inner chamber simultaneously, reduce the consumption of cold oil liquid.
3, the present invention arranges auxiliary impeller on main shaft, and the cold oil liquid in the electromagnetic machine inner chamber relies on the power of auxiliary impeller to realize the pump circulation of cold oil liquid, and good cooling results has guaranteed the reliably working of motor.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Label among the figure: FOI system repairing mouth; LOI cold oil liquid inlet; The outlet of LOO cold oil liquid; The CWI cooling water intake; The CWO coolant outlet; 1 pump housing; 2 impellers; 3 pump covers; 4 sealed float rings; 5 springs; 6 electromagnetic machines; 7 staor winding; 8 rotor windings; 9 main shafts; 10 auxiliary impellers; 11 differential pressure jars; 12 heat exchangers; 13 filters; 14 fluid lubricated bearings; 15 thrust discs.
Embodiment
Referring to Fig. 1; Leak-free high temperature deep fat medium transport pump structure characteristics are to adopt electromagnetic machine 6 in the present embodiment; By the sealing of motor afterbody end cap, by pump cover 3 sealings, the inner chamber of the inner chamber of electromagnetic machine 6 and the pump housing 1 forms communicated cavity to the housing of electromagnetic machine 6 at the shaft extension end at afterbody; Main shaft 9 is enclosed in the communicated cavity; The staor winding 7 and the rotor winding 8 of electromagnetic machine 6 are immersed in the cold oil liquid, and the pressure of the pressure ratio pumping high-temperature hot oil medium of cold oil liquid exceeds 0.05MPa-0.2Mpa.
The auxiliary impeller 10 that rotates with main shaft 9 in the afterbody setting of main shaft 9; The differential pressure jar 11 of auxiliary impeller 10 and outer installment, heat exchanger 12 and filter 13 constitute the closed circulation system of cold oil liquid.
The auxiliary impeller 10 that rotates with main shaft 9 in the afterbody setting of main shaft 9; The differential pressure jar 11 of auxiliary impeller 10 and outer installment, heat exchanger 12 and filter 13 constitute the enclosed forced circulation system of cold oil liquid; Between the pump cover 3 of the housing of electromagnetic machine 6 and the pump housing 1, float ring seal 4 is set, the end face of float ring seal 4 relies on the elastic force of spring 5, keeps in touch with pump cover 3 all the time.
High-temperature hot oil medium transport pump is before operation; Be full of cold oil liquid through the repairing mouth FOI of system in the chamber of electromagnetic machine 6; The cold oil fluid pressure is than the high 0.05MPa-0.2Mpa of pumping high-temperature hot oil pressure medium, and this pressure reduction is to damage staor winding 7 and rotor winding 8 in order to guarantee pumping high-temperature hot oil medium under any circumstance can not leak in the chamber of electromagnetic machine 6.The high-temperature hot oil medium pump is when normal operation; Cold oil liquid in electromagnetic machine 6 chambeies promotes energy through the auxiliary impeller 10 with main shaft 9 rotations; Via cold oil liquid outlet LOO get into differential pressure jar 11 epicoeles, flow through heat exchanger 12 and filter 13 carries out the fluid cooling and filters again, gets into electromagnetic machine 6 by cold oil liquid-inlet LOI at last, accomplishes the pump circulation of self; To take away the heat that electromagnetic machine 6 self produces; Guarantee cold oil fluid temperature in electromagnetic machine 6 chambeies within allowed band, wherein the cavity of resorption of differential pressure jar 11 links to each other with pump chamber, and it mainly acts on is to make all the time in electromagnetic machine 6 chambeies He in the pumping high-temperature hot oil media cavity to keep stable pressure reduction; Between the electromagnetic machine 6 and the pump housing 1, be provided with float ring seal 4; When main shaft 9 rotations,, thereby realize sealing effect because the radial disbalance of float ring seal 4 produces the hydrodynamic effect; To stop cold oil liquid to flow into pumping high-temperature hot oil side medium as far as possible, reduce the consumption of cold oil medium; In case it is liquid-consumed when a certain amount of cold oil to occur, in time replenish cold oil liquid through the repairing mouth FOI of system.In addition, in high-temperature hot oil medium transport pump operation process, cooling water divides two-way by cooling water intake CWI; One road inflow heat exchanger 12 carries out heat exchange; Take away the heat that circuit cold oil liquid produces in electromagnetic machine 6, carry out heat exchange in the cooling chamber of another road inflow pump cover 3, play heat-blocking action; Isolate of the transmission of heat of deep fat medium, finally all flow out by coolant outlet CWO to cold oil liquid.
High-temperature hot oil medium transport pump structurally also disposes fluid lubricated bearing 14 and thrust disc 15, and fluid lubricated bearing 14 relies on cold oil liquid to be lubricated, and comes supports main shaft 9, bears radial load; High-temperature hot oil medium transport pump is when operation, and most axial forces can be by equalizing orifice of on impeller 2, opening or Equilibrator balance, and residual axial force is born by thrust disc 15.
Claims (3)
1. leak-free high temperature deep fat medium transport pump; It is characterized in that adopting electromagnetic machine (6); By the sealing of motor afterbody end cap, by pump cover (3) sealing, the inner chamber of the inner chamber of said electromagnetic machine (6) and the pump housing (1) forms communicated cavity to the housing of said electromagnetic machine (6) at the shaft extension end at afterbody; Main shaft (9) is enclosed in the said communicated cavity; The staor winding (7) and the rotor winding (8) of said electromagnetic machine (6) are immersed in the cold oil liquid, and the pressure of the pressure ratio pumping high-temperature hot oil medium of said cold oil liquid exceeds 0.05MPa-0.2Mpa.
2. according to the said leak-free high temperature deep fat of claim 1 medium transport pump, it is characterized in that the auxiliary impeller (10) that rotates with main shaft (9) in the afterbody setting of said main shaft (9); The differential pressure jar (11) of said auxiliary impeller (10) and outer installment, heat exchanger (12) and filter (13) constitute the closed circulation system of cold oil liquid.
3. according to the said leak-free high temperature deep fat of claim 1 medium transport pump, it is characterized in that between the pump cover (3) of the housing of said electromagnetic machine (6) and the said pump housing (1), float ring seal (4) being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006564.7A CN102518589B (en) | 2012-01-10 | 2012-01-10 | Leakless high-temperature hot oil medium delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210006564.7A CN102518589B (en) | 2012-01-10 | 2012-01-10 | Leakless high-temperature hot oil medium delivery pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518589A true CN102518589A (en) | 2012-06-27 |
| CN102518589B CN102518589B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210006564.7A Active CN102518589B (en) | 2012-01-10 | 2012-01-10 | Leakless high-temperature hot oil medium delivery pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533022A (en) * | 2016-12-29 | 2017-03-22 | 山东颜山泵业有限公司 | Horizontal flame-proof type electric motor for high-temperature non-leakage pump |
| CN108224776A (en) * | 2018-03-06 | 2018-06-29 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
| CN108488074A (en) * | 2018-05-31 | 2018-09-04 | 合肥华升泵阀股份有限公司 | A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature |
| CN108869323A (en) * | 2018-07-03 | 2018-11-23 | 江苏创进泵阀制造有限公司 | A kind of air-cooled circulating high-efficient self-priming pump of slurry No leakage anti-clogging |
| WO2019080139A1 (en) * | 2017-10-29 | 2019-05-02 | 张拥军 | Sealed centrifugal pump with high temperature resistance |
Citations (4)
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| GB743779A (en) * | 1952-03-22 | 1956-01-25 | Mcgraw Electric Co | Improvements in electric motor pump unit |
| CN1439811A (en) * | 2002-10-15 | 2003-09-03 | 甘肃工业大学 | Axial-flow air oil mixed transfer pump and control system thereof |
| CN201650760U (en) * | 2010-01-29 | 2010-11-24 | 大连海密梯克泵业有限公司 | Shield pump for heat transfer oil |
| CN101994703A (en) * | 2009-08-18 | 2011-03-30 | 上海熊猫机械(集团)有限公司 | High temperature hot water pump |
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2012
- 2012-01-10 CN CN201210006564.7A patent/CN102518589B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB743779A (en) * | 1952-03-22 | 1956-01-25 | Mcgraw Electric Co | Improvements in electric motor pump unit |
| CN1439811A (en) * | 2002-10-15 | 2003-09-03 | 甘肃工业大学 | Axial-flow air oil mixed transfer pump and control system thereof |
| CN101994703A (en) * | 2009-08-18 | 2011-03-30 | 上海熊猫机械(集团)有限公司 | High temperature hot water pump |
| CN201650760U (en) * | 2010-01-29 | 2010-11-24 | 大连海密梯克泵业有限公司 | Shield pump for heat transfer oil |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533022A (en) * | 2016-12-29 | 2017-03-22 | 山东颜山泵业有限公司 | Horizontal flame-proof type electric motor for high-temperature non-leakage pump |
| CN106533022B (en) * | 2016-12-29 | 2023-05-30 | 山东颜山泵业有限公司 | Horizontal explosion-proof motor for high-temperature leak-free pump |
| WO2019080139A1 (en) * | 2017-10-29 | 2019-05-02 | 张拥军 | Sealed centrifugal pump with high temperature resistance |
| CN108224776A (en) * | 2018-03-06 | 2018-06-29 | 哈尔滨千安庆防爆电热电气有限公司 | A kind of electric heater for heat conduction oil |
| CN108224776B (en) * | 2018-03-06 | 2024-03-19 | 哈尔滨千安庆防爆电热电气有限公司 | Conduction oil electric heater |
| CN108488074A (en) * | 2018-05-31 | 2018-09-04 | 合肥华升泵阀股份有限公司 | A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature |
| CN108869323A (en) * | 2018-07-03 | 2018-11-23 | 江苏创进泵阀制造有限公司 | A kind of air-cooled circulating high-efficient self-priming pump of slurry No leakage anti-clogging |
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| Publication number | Publication date |
|---|---|
| CN102518589B (en) | 2015-09-16 |
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Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |
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